#Surface Slitting Rewinding Machine

[ewintape]

The benefits of using anti slip tape

There are many benefits to using anti slip tape. This type of tape can help to prevent accidents by providing a much needed grip on slippery surfaces. It can also help to protect against wear and tear, as well as making it easier to clean up any spills.

The application of anti slip tape

What are the selection criteria for anti slip tape?

What is the working principle of anti slip tape?

The application of anti slip tape

There are many different types of anti slip tape, each with their own unique properties and benefits. However, all anti slip tapes share one common trait: they all help to keep you safe from slipping and falling.

anti slip tape is typically made from a variety of different materials, including rubber, PVC, and even metal. The type of material used will usually depend on the specific application for which the tape is being used. For example, metal anti slip tape is often used in industrial settings where there is a lot of foot traffic, as it is extremely durable and can withstand heavy wear and tear.

The rubber and PVC anti slip tapes are often used in residential and commercial settings as they are more forgiving if someone does happen to slip and fall. These types of tapes are also typically much less expensive than their metal counterparts.

No matter what type of anti slip tape you choose, make sure that it is applied correctly in order to ensure the best possible results. If you are unsure about how to apply the tape, or if you have any other questions about its use, be sure to consult with a professional before proceeding.

What are the selection criteria for anti slip tape?

1. When purchasing, check whether there are burrs on the surface of the anti slip tape.

2. The adhesive should be strong and durable, waterproof.

3. Check the anti-fouling ability of anti slip tape. This material has strong wear resistance and excellent water absorption function, so its application range is extremely wide.

What is the working principle of anti slip tape?

anti slip tape is used in the coating process of double-sided adhesive tape. When the double-sided tape is pulled out from the coating machine, it needs to be guided out by rollers. If the surface of the guide roller is not specially treated, the adhesive will stick to the roller and affect the Production and tape quality. The surface of the roll is usually covered with a low surface energy material to prevent sticking. This single-sided non-slip tape is specially designed for this application. It is coated with a durable adhesive on one side to firmly stick to the surface of the output roller, and the other side is made of special low surface energy rubber, which can effectively prevent the adhesive from being damaged Adhesive effect.

 Jiangmen E Win Adhesive Products Co., Ltd is equipped with all kinds of professional production equipment. The factory has glue coating machine, rewinding machine, slitting machine, hot shrink machine and die-cutting machine. 

[lyishengineeringltd]

From Pulp to Roll: Understanding the Manufacturing Process of Toilet Paper Machines

Toilet paper is a ubiquitous household item that we often take for granted. However, behind every roll of toilet paper lies a complex manufacturing process that involves specialized machines. Understanding the intricacies of toilet paper machine production can shed light on the journey from pulp to the final product that we use daily. In this blog, we will explore the key steps involved in the manufacturing process of toilet paper machines.

Pulp Preparation:

The first step in producing toilet paper is the preparation of the pulp. Wood chips or recycled paper are processed in large machines called pulpers. The pulpers break down the raw material, removing impurities and creating a slurry-like mixture called pulp. This pulp will serve as the foundation for the toilet paper production process.

Paper Machine:

Once the pulp is ready, it is fed into a paper machine. The paper machine consists of a series of sections and components that work together to transform the pulp into thin sheets of paper. These sheets are then pressed, dried, and rolled onto large spools.

Rewinding and Slitting:

The large spools of paper are then transferred to rewinding machines. In this step, the paper is unwound from the spools and rewound onto smaller rolls, which are more convenient for consumer use. The rewinding machines also have slitting blades that cut the large sheets of paper into narrower strips, which will form individual toilet paper rolls.

Embossing and Perforation:

Toilet paper often features patterns or embossed designs on its surface. This is achieved through embossing rolls that press decorative patterns onto the paper during the rewinding process. Additionally, perforation blades create small dotted lines along the paper strip, allowing for easy tearing and separating of individual sheets.

Cutting and Packaging:

After embossing and perforation, the toilet paper strips are cut into individual rolls. These rolls are then packaged using automated packaging machines. The packaging machines wrap each roll in plastic or paper, ensuring hygiene and protection during transportation and storage.

Quality Control:

Throughout the manufacturing process, quality control measures are implemented to ensure that the toilet paper meets industry standards. These measures include monitoring the thickness, strength, and softness of the paper, as well as inspecting the embossing and perforation patterns. Any defective rolls are removed to maintain the overall quality of the final product.

Conclusion

The manufacturing process of toilet paper machine involves several intricate steps, from pulp preparation to cutting and packaging. Specialized machines and quality control measures ensure that the toilet paper meets the necessary standards of thickness, strength, softness, and hygiene. By understanding the manufacturing process behind toilet paper, we gain a deeper appreciation for the complexity involved in producing this essential everyday product.

[slitterrewinder]

We are experienced manufacturer, exporter & supplier of Slitter Rewinder Machine. High speed and heavy duty Automatic Slitting Rewinding Machine Manufacturer on demand of client’s requirement and machine specific application and material. Slitting of all types of Plastic Slitting Rewinding Machine, Woven Sack Slitting Rewinding Machine, High Speed Slitting Rewinding Machine, Surface Slitting Rewinding Machine, Label Slitting Rewinding Machine, Cantilever Slitter Rewinder Machine, Rubber Slitter Rewinder Machine, Mini Cantilever Slitter Rewinder Machine.

[slittingrewindingmachinenet]

We have been successfully Manufacturing, Exporting & Supplying all the types of Slitting Rewinding Machine, Surface Slitting Rewinding Machine is the most commonly used machine type. All different types of Films & Paper Materials can be processed in our Surface Winding Slitting Machine. Slitter Rewinder Machine with heavy duty Rubber Roller Plastic Slitting Rewinding Machine, Woven Sack Slitting Rewinding Machine, High Speed Slitting Rewinding Machine, Automatic Slitting Rewinding Machine.

[doctoringrewindingmachine]

We have been successfully Manufacturing, Exporting & Supplying all types of Doctoring Slitting Rewinding Machine and Winding Rewinding Machine for Inkjet Printer & Batch Printing. Our Doctoring Slitting Rewinding Machine is featuring on spending less power. Also, majorly used for Doctoring Slitting all types of Laminates like Foil, Paper, LDPE, HDPE, PVC. Doctoring Rewinding Machine, Doctoring Machine, Slitting Rewinding Machine, Doctoring Slitting Rewinding Machine, Slitter Rewinder Machine Manufacturer, Slitting and Rewinding Machine, Paper Rewinder Machine, Paper Slitting Machine for Sale, Surface Slitter Rewinder, Paper Slitting and Rewinding Machine, Paper Rewinder Machine Manufacturers, Slitting and Rewinding, Slitting Rewinding, BOPP Tape Slitting Rewinding Machine, Aluminium Foil Slitting Machine, Thermal Paper Slitter Rewinder, Roll Slitter Rewinder, Paper Slitting Rewinding Machine, Aluminium Slitting Machine, Paper Roll Slitter Rewinder, Paper Rewinder for Sale

[rewindingmachine]

Krishna Engineering Works is one of the best Manufacturer, Exporter, and Supplier of Rewinding Machine, Roll to Roll Processing Machines for various types of process like Rewinding Machine, Slitting, Doctoring Rewinding, Winding Rewinding, Rewinding Unwinding, Jumbo Roll to Small Roll Rewinding Machine, Folding, Fold Open, Converting, Corona Treatment, Inspection, Trim Rewinding Machine, Printing, Coating, Laminating, Flexo Printing, Batch Printing, Flexible Packaging, Slitter Rewinder Machinery, Core Cutter, all types of Industrial Rollers, Printing machinery.

All our Rewinding Machine and Roll to Roll Converting Machines technically designed with heavy-duty and accurate features for different materials like Paper, Film, Nylon, Textile / Fabric, Non-Woven, Foil, Flexible Packaging, Tyre Cord, Technical Textile.

Our range of Different types of Rewinding Machine, Roll to Roll Processing Machines is capable to process all types of Laminates like Film, Paper, Aluminium, Foil, PVC, Plastic, LD, LDPE, PP, BOPP, Cloth, Fabric, and many more. Rubber Roller Manufacturer, Slitter Rewinder Machine, Roll to Roll Processing Machines, Roll to Roll Coating, Industrial Rubber Rollers, Slitter Rewinder Machine Manufacturer, Slitter Rewinder for Sale, Slitter Rewinder Manufacturers, Paper Slitter Rewinder Machine, Rubber Rollers Suppliers, Film Slitting Machine, Surface Slitter Rewinder, Slitting and Rewinding Machine, PU Roller Manufacturer, Roll to Roll Sputtering, Thermal Paper Slitting Rewinding Machine, Industrial Rollers Manufacturers, Mini BOPP Tape Slitting Rewinding Machine, Slitter Rewinder Machine Price

[slitter-rewinder-machine]

Heavy Duty and Light Duty Metallized Polyester Film Slitter Rewinder Machine We are award winning company of Slitting Machine Manufacturer, Exporter. Different types of films like, Chemical Metallized Polyester Film, Metallized Polyester Film Slitter Rewinder Machine, Metalized Polyester Film, Synthetic Metallized Polyester Film, and Corona Metalized Polyester Film. All our slitter Rewinder machines designed with heavy duty and high quality equipment for different types of applications in various applications. Our machine is an ultimate Slitter and Rewinder Machine for its accurate slitting and rewinding qualities. It ensures perfect slitting of rolls with consistent, flawless results and constant line speed. It is available in adaptable model to suit your requirement. Our Slitter Rewinder Machine is available in Rewinder, Duplex surface slitter and Rewinder and Canti lever differential slitter and Rewinder. Our Slitting Rewinding Machine is renowned for its accurate slitting at a higher speed and vibration less working.

[slitterrewinders2-blog]

Elite Cameron

Elite Cameron manufactures slitting, rewinding, coating and laminating machines which are incredibly versatile and capable of processing a broad range of materials such as delicate non-wovens, flexible packaging, self-adhesive tapes, laminates, papers, foils, rubber, and plastics. We offer a complete line of slitter rewinders including turret rewinders, surface winders, duplex slitters, center winders along with other converting equipment such as hot melt coaters, core cutters, laminators and specialty converting equipment. Our machines are available worldwide. For more information contact our sales & engineering teams in the UK or USA offices.

 http://www.elitecameron.com

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[rotogravuremachine]

We are focus on quality of Slitter Rewinder Machine Manufacturer for Film and Paper Slitting Rewinding Machine, Hi-Speed Slitting Rewinding Machine on custom requirements applications from India. Different types of shaft type Slitter Rewinder Machine such as Surface Slitting Machine, Thermal Paper Slitter Rewinder Machine, Rewinding Machine for label etc. Slitter Rewinder Machine Materials, Plastic Slitter Rewinder, Paper Slitter Rewinder, PVC Slitter Rewinder, Bopp Film Slitter Rewinder Machine.

[h-fangtm]

Talking about the selection of warping machine equipment

Briefly describe the different requirements, structure, characteristics and variety adaptability of the section warping machine, batch warping machine and glass fiber direct warping machine, and compare the imported warping machine with the domestic new type warping machine.

The purpose of choosing the best warping equipment is not only to meet the pre-weaving process design, but also to meet the weaving process requirements so that the company can obtain high yield, high quality, and efficiency, and be invincible in market competition. With the improvement of weaving requirements and weaving level in the textile industry, higher requirements are put forward on weaving shafts. For example, the requirements for warp and weaving shaft surface flatness and warp tension are increasing. The improvement of weaving efficiency requires warping and High quality and high efficiency in other preparation processes (sizing and doubling process). Therefore, in recent years, the technology and manufacturing level of warping equipment in our country have also developed rapidly. The following briefly introduces several types of warping machines and suitable fabric varieties.

1 Sectional warping machine and Sectional warping

1.1 Sectional warping machine is suitable for constraining a certain number of packages into a certain arrangement and warp density to be wound on the warping drum one by one. Seamless splicing between strips is required, and no stacking is allowed. The length of each strip is strictly consistent with the forming height (except for tight edges required by the weaving process). After the warping is completed, the yarn on the drum is unwound to the weaving shaft according to a certain tension requirement.

1.2 There are many factors that affect the quality of slitting warping, which are mainly manifested in: the pros and cons of the climbing (displacement) accuracy, the control level of single yarn tension, sheet tension and back-axis tension, etc. The main factors to improve the efficiency of section warping are: higher warping speed and reversing speed, lower warping breakage rate, etc.

1.3 In terms of displacement accuracy, the slitting warping machine adopts two fixed ball screws, and the warping table is connected to the ball nut. In this way, the gap between the screw and the nut is eliminated (there is no gap between the ball screw and the ball nut). There is no axial movement. The creel adopts the method of collectively adjusting the tension, which can easily adjust the tension of the warping sheet yarn. Foreign slitting warping machines also have sheet yarn tension detection and closed-loop control. In theory, the tension in this long segment is basically constant, which is beneficial to the good shape of the yarn sheet on the drum. The tension of the reversing shaft is automatically calculated and controlled, and the tension of the reversing shaft can be realized according to the requirements of the operator.

1.4 The efficiency depends on the manufacturing accuracy of the equipment. High-speed warping requires a large drum with better dynamic balance characteristics, high-speed rewinding requires a rewinding machine with good concentricity, and a lower warping breakage rate needs to be better. The yarn guide parts with excellent single yarn tension and good yarn guide performance are currently available in domestic slitting warping machines and foreign slitting warping machines.

1.5 Slitting warping is suitable for a wide variety of fabrics, from filaments, blends, fine wool, yarn-dyed, towels and other woven fabrics that can be woven without sizing (can be oiled and waxed). Slitting can be used. Warping. The section warping machine is a product designed and developed based on the absorption of similar equipment and related advanced technology at home and abroad, and is designed and developed to meet the requirements of a variety of fabrics and warping machines in my country's textile industry. It can meet the various technological requirements of customers at home and abroad, especially in chemical fiber filament fabrics. The slitting warping machine adopts computer communication, AC frequency conversion speed regulation, full digital AC servo positioning control, subdivided stepping control, hydraulic clamp brake, adjustable tensioner, static elimination device and infrared automatic stop device, etc. Advanced technology in the field. It is widely used in slitting and warping before weaving of cotton, yarn-dyed, wool, silk and various chemical fiber filaments.

There are two solutions for the warping of fabrics that must be sized to be woven: a sizing machine (sizing machine) suitable for small batch production, that is, the yarn is drawn from the creel for sizing, dried and then divided. The strip is warped and poured onto the weaving shaft. Such a technological process reduces the waste of threading to a small extent, which is especially suitable for the production of samples and small batches. The disadvantage is that the efficiency is relatively low (especially when the number of warping is large). If it is mass production, the second option is more suitable: first batch warping, then sizing (silk), drying, and shafting.

2 Batch warping machine and batch warping

2.1 In batch warping, the warp of the creel is guided at a high speed to the warp beam to be wound into a certain length of warp beam. Because the sizing process requires the same length of warp yarns on the warp beams of the same batch. Therefore, in addition to high-speed and high-efficiency warping, batch warping also requires strict and consistent warping code lengths, so that the waste of yarn can be greatly reduced when sizing and paralleling. The winding density of batch warping is mainly affected by the degree of compaction of the pressing roller, and is slightly affected by the warping tension. The rate of warping breakage is greatly affected by the warping tension. For this reason, the idea of batch warping abroad is to minimize the warping tension. In the past ten years, most of the batch warping machines imported from abroad are equipped with V-shaped creels, the tension is completely released during warping, and the yarns are damped to a certain extent during warping braking to ensure that the yarns are not loose. Its main features: short frame, no yarn guide between the creel and the telescopic reed, especially suitable for some short fibers that are sensitive to friction, to achieve low-tension level and high-speed operation, which is beneficial to reduce the tension difference of the yarn and the warping time The creel is especially suitable for high-speed warping.

2.2 The pressure rollers of the batch warping machine are divided into two types according to the pressure mode: direct pressure and indirect pressure. The directly pressurized warping machine is a model produced by Japan's Jinmaru Company that entered the Chinese market earlier, and its stable and reliable characteristics have been affirmed by users. At the same time, it is also exported to many regions. The indirect pressure warping machine is represented by the warping machine produced in European countries. The pressure roller is placed in the cantilever mechanism, and the damping system is connected through the cantilever mechanism. The advantage of the indirect pressure warping machine is that the warp beam is well rounded. In addition, the automatic control of batch warping machines imported from abroad is very distinctive in recent years. The high-speed batch warping machine has absorbed many advantages of foreign counterparts, and has developed a control system with independent intellectual property rights and unique characteristics, which can ensure that the length error between the shafts is not more than 0.2%. The operation and maintenance of the warping machine are better than the previous imported warping The machine is more convenient and faster.

2.3 The batch warping machine is an indirect pressurized warping machine. After many years of use by customers, it has been shown that this warping machine is a relatively economical model with simple structure, convenient operation and relatively affordable cost performance.

2.4 Batch warping is suitable for a wide variety of fabrics, from filament (filament batch warping machine), blended, cotton, linen, yarn-dyed, etc. woven fabrics that require sizing to be woven. All can be warped in batches. , After batch warping, sizing is needed, and it can be transferred to the weaving process after the shaft is combined.

3 Glass fiber direct warping machine and glass fiber direct warping

3.1 Fiberglass warping has been realized by more use of slitting warping machines in the previous years. There are only a few domestic factories producing it, but according to customer feedback, it is not really usable. In recent years, as the glass fiber industry has higher and higher requirements for weaving, including the requirements for the flatness of the warp beam, the relative difference in tension between the warp yarns has become more and more stringent. Based on this process requirement, we are consulting the user's process requirements in detail. Developed a glass fiber direct warping machine suitable for glass fiber direct warping.

3.2 The glass fiber direct warping machine puts the same amount of bobbins as the total number of warps on the creel, warps the reed, retractable reed, leveling roller, and tension roller to the weaving shaft, and winds it into a shaft with tension. The theoretical basis for this is that the tension is mainly applied by the tension roller, and the tension applied by the tension roller can be evenly applied to each single yarn, so that the tension of the creel can be set smaller, and the tension before winding into the shaft The proportion of single yarn tension is relatively small. In this way, the relative tension difference between the single yarns can be reduced to a small level, and the leveling roller can have a certain leveling effect on the tension between the single yarns, and further reduce the tension difference between the single yarns.

3.3 The telescopic reed (or fixed reed) can choose the swing function. The glass fiber is formed into a cross net structure on the shaft surface, which is beneficial to the flatness of the weaving shaft. The pressure roller (on the surface of the weaving shaft) also helps the flatness of the weaving shaft to a certain extent. .

4 Flat wire direct warping machine and flat wire direct warping

4.1 The object of direct warping of flat wire is industrial flat wire with a rectangular cut surface. It is required that the industrial flat wire must not be turned over during the warping process. Therefore, the traditional axial unwinding is not feasible and must be replaced with radial unwinding, that is, It is said that the bobbin must be rotating during the unwinding process, and it is required that the bobbin has a brake function when the warping is stopped (otherwise the yarn will be loose and messy).

4.2 In the warping machine part, the shaft surface is required to be flat. In addition to the small difference in flat yarn size, the cross-winding function is adopted. The yarn guide part driven by the pressure roller retreats equidistantly (parallel pressure), the yarn guide part driven by the servo motor, etc. The distance up (support arm type pressure) can make the relative position of the yarn into the shaft fixed reed and the shaft surface remain unchanged, which has a relatively significant effect on good forming.

4.3 The flat yarn direct warping machine is mainly suitable for the direct warping of geotextiles, carpet base fabrics, packaging bags, and decorative flat yarns. Due to the special requirements of this equipment, the product demand is limited to few customers, so this product is produced in China There are very few manufacturers, and they can only produce special products according to customer requirements and special product technology.

Concluding remarks

Warping is one of the indispensable processes in the weaving process, and the warping machine is the necessary preparation equipment for enterprises to produce textile products. At present, the performance indicators of the domestically made section warping machine and high-speed batch warping machine are roughly the same as the imported new warping machine, which can replace the imported warping machine. Compared with the imported warping machine, the difference is nothing more than the material of the equipment itself and the processing accuracy of individual parts. However, the price of the whole machine is far from a small amount compared with domestically produced warping machines. It may be double the price. According to the comprehensive consideration of the actual situation of domestic textile enterprises and the maintenance time, the domestically-made new warping machine has greater advantages.

As a professional and leading manufacturer of textile preparation machinery, H-FANG has been accumulating experience and success in manufacturing different machines for the textile industry. If you are purchasing section warping machine equipment, I believe H-FANG will be a good choice.

[heshangkeji]

Operation process of slitting machine

Today we will take everyone to understand the operation process of the slitting machine, so that we can have a good start when we operate the machine.

Start preparation 1. Check whether the power and air source are normal. 2. Check whether each transmission part needs to be filled with lubricating oil, and whether each part is loose. 3. Turn on the electrical isolation switch and check whether the voltage, current, and temperature are correct. 4. Turn on the power switch of the hydraulic system and check whether the oil level of the main hydraulic drive system and the pressure gauge display are correct and stable. 5. Open the start throttle valve and check whether the air pressure is correct (not less than 6.0bar) and stable.

Settings control 1. Set the slitting menu according to the PVC film type, thickness, length, width, etc. of the slitting plan. 2. Extract the corresponding PVC film file from the PDF. 3. Set the rewinding length and width of the film of corresponding specifications. 4. Select the corresponding winding station, adjust the pressure roller arm and pressure roller, and install the paper core of the corresponding specification. Loading, piercing and adding film 1. According to the requirements of the slitting plan, in accordance with the operating rules and actual conditions, hoist the corresponding parent roll on the aging rack, select the direction according to the corona surface inside and outside, and place it on the unwinding rack of the slitting machine, and press the control button Clamp and tighten the steel core, leave the steel core support arm and drive. 2. Film piercing​​: When there is no film on the slitting machine, the film must be pierced. Use the film-piercing device and function keys of the slitting machine to tie one end of the original film to the eyelet of the film-piercing chain, and press the film-piercing button to make the film evenly distributed on the rollers along the slitting process. 3. Film splicing: When there is film on the slitting machine and the roll joint is changed, use the vacuum splicing table, first start the film splicing table to the working position, manually flatten the film on the first traction roller of the slitting machine and start the upper vacuum pump for suction Film, so that the film is smoothly absorbed on the film splicing table, paste the double-sided tape and cut off the excess film under the tape, flatten the film on the unwinding rack, start the vacuum to make the film absorb smoothly, and remove the tape. Put the paper layer, level the film, and the joints should be neat and wrinkle-free, then turn off the upper and lower vacuum pumps, and open the splicing table to a non-working position.

start up Change the specifications and put the paper core on the inner and outer winding arms. When the press roller is in the ready state, the people around the machine should evacuate quickly. Slitting control 1. During the slitting operation, carefully monitor and observe the slitting effect, and appropriately adjust and control the slitting speed, unwinding tension, contact pressure, bending roller, edge material traction roller, edge guide, etc. Receipt 1. When the inner and outer ends of the winding are finished and the machine stops, use the film unloading button to place the film on the prepared film unloading trolley, cut the film, and paste the film roll with sealant. 2. Use the chuck release button to release the chuck and check whether the paper core of each roll of film rolls away from the paper core. If one end is still stuck on the paper core, remove the film roll manually. 3. Make sure that all the films leave the chuck and put them on the trolley. Use the film loading button to raise the winding arm, install the corresponding paper core, and place the film neatly on the paper core for the next slitting.

Stop device When the film roll reaches the set length, the equipment automatically stops.

visit:https://www.china-changcheng.com/news/operation-process-of-cutting-machine

[wuxicoreco]

Characteristics and uses of carbon fiber air expanding shaft

Today, Coreco introduces you to some information about air expanding shafts. The main points are the concept of air expanding shaft, the characteristics of air expanding shaft, the characteristics of carbon fiber air expanding shaft and its usage.

The concept of air expanding shaft

A air expanding shaft is a special kind of winding and unwinding shaft, that is, a shaft whose surface can be protruded after being inflated under high pressure, and the shaft whose surface part retracts quickly after being deflated is called air expanding shaft. It is called various names, such as air pressure shaft, expansion shaft, inflation shaft, air expansion roller, inflation shaft, pressure shaft, air expansion roller, etc.

Features of air expanding shaft

1 Inflatable operation time is short, the separation and placement of air expanding shaft and paper tube only takes 3 seconds to complete the inflating and deflating, and there is no need to divide any parts on the end side of the slack shaft that can be closely occluded with the paper tube.

2 Easy placement of paper tube: with the action of inflating and deflating, the paper tube can be moved and fixed in any position on the shaft surface.

3 Large load weight: The size of the shaft diameter can be determined according to the actual needs of the customer, and high hardness steel is used to make the load weight increase.

4 High economic efficiency: The shaft is designed for special function, and it can be applied to all kinds of paper tubes, such as thick, thin, wide and narrow.

5 Simple maintenance and long service life: The air expanding shaft is a single part, and each part of its structure has fixed specifications, which can be interchanged and used, making it easy to maintain.

First,Wide range of applications: As an independently designed part, the air expanding shaft can be used from 1 inch to 12 inches, with the length and size determined by the actual needs of the customer, and can be used for slitting, printing, rewinding, coating, laminating, bagging, papermaking, etc. or other related machinery.

Second, economic and efficient: the design of the shaft for the actual work needs of the design, the thickness and width of the various types of roll can be applied.

Third, the use of a long time, simple maintenance: Although the air expanding shaft is an accessory on the machinery, but its own structure of each part have fixed specifications, can be interchangeable, making it easy to maintain.

Fourth, a single accessory: air expanding shaft is a single spare part of the winding and unwinding machinery, each part of its structure has a fixed size, can be broken down and combined, so that maintenance is convenient, durable surface.

V. Professionalism: There are professional engineers and technicians for market research on the design and installation of air expanding shaft.

Sixth, large carrying capacity: air expanding shaft shaft can be designed according to the actual model, the use of high-quality steel, increase the carrying capacity. For example, the bearing weight of more than 1 ton can be selected from steel materials.

Seven, the operation time is short: separation and placement of the coil can be completed in just 2 seconds of inflating and deflating action, placing the coil is simple and convenient, safe and applicable. All machines and equipment used for winding and rewinding can be applied to the air expanding shaft. The longest air expanding shaft can reach six meters or more, and the shortest can reach several hundred millimeters, all according to customer needs to determine the length.

Eight, key-type air expanding shaft expansion up to a single key bar, the fulcrum point spread to each key bar, balance the force, can be applied to mechanical winding bearing heavy items.

Features and uses of carbon fiber air expanding shaft

Lightweight carbon fiber inflatable shafts are ergonomic, lightweight inflatable shafts with both durability and high-speed operation.

Carbon fiber inflatable shafts are 1/4 the weight of traditional inflatable shafts, making them ideal for high load carrying and manual handling and cutting. It can reduce occupational injuries of handling operators and also improve work efficiency. The optimized internal structure design is widely used in the air inflatable shaft industry, and it does not produce violent vibration even in the high speed field. Wide range of application, it can be applied to special surface treatment in various special environments (no pressure, corrosive, high temperature environment).

The use of carbon fiber air shaft is very wide, all machines with winding, unwinding and slitting can be applied to carbon fiber air shaft, even including light metal industry. For example: the air expanding shaft is mainly used in printing equipment: printing machine, flexographic printing machine, gravure machine, trademark printing machine, etc.; other machinery: coating machine, leather machine, shaping machine, embossing machine, slitting machine, die-cutting machine, rewinding machine, paper tube machine, bag making machine, laminating machine, laminating machine, film blowing machine, foaming machine, laminating machine, embossing machine, paper machine, non-woven machine, fabric inspection machine, hot stamping machine, battery equipment and other related machinery.

[psatalk]

SP Ultraflex’s ROBOSLIT impresses Constantia Parikh

Vienna-based Constantia is one of the largest flexible packaging manufacturers globally. It now has several plants in India based on its acquisitions of Parikh Packaging and Creative Polypack. It also set up a Greenfield plant for its recyclable PE-based flexible packaging plant called Constantia Ecoflex in Ahmedabad, inaugurated in 2019. We are producing an edited version of an interview of Ahmedabad-based Pragnesh Shah, plant head of the Constantia Parikh Packaging sub-cluster below.

Please tell us a bit about the inception of Constantia Parikh Packaging and its area of focus within the flexible packaging segment.

Pragnesh Shah – Constantia Parikh Packaging was formed in 2013, when the Parikh family, promoters of Parikh Packaging, welcomed the Constantia Flexibles group as partners. Regular investments in infrastructure, systems, and plant and machinery enabled the company to grow 3x, and the monthly output now stands at 1800 MT. In 2017, we decided to venture into 100% recyclable laminates and set up our new state of art plant ‘Ecoflex’ in 2019. We launched ‘Ecolam,’ a 100% PE-based laminate to replace aluminum foil from the new unit. By 2025, we plan for 100% of all consumer and pharma packaging to be recyclable, reflecting our commitment to society for environmental friendliness.

Can you help us with an overview of the plant and machinery in your company?

Pragnesh Shah – We started with indigenous machines but were let down in terms of performance. As a result, we shifted to European and Korean technology. We are happy to share that after seeing improvements in Indian machines over the years, we have come full circle today. Most of the recent additions to our plant are from reputed Indian manufacturers.

Being one of the oldest and most reputed converters in the region, we would like to know how important the role of slitting rewinding machines in the overall process of converting is?

Pragnesh Shah – Slitting is usually the last process before the final product is delivered to our customer. Most of our customers are from the food industry and cannot afford stoppages in their packing lines due to slitting defects. In addition, slitting defects can undo all the efforts made in the printing and lamination processes. Therefore, we feel it is essential to invest in the best technology for slitter rewinders, mainly because their cost is a small fraction of the total investment.

Which performance parameters are critical and which features are ‘must haves’ on a good slitter rewinder?

Pragnesh Shah – First and foremost, the ITM (Intelligent tension management), is an absolute must to reduce dependency on operator expertise. Here, the PLC computes and maintains the tension levels suitable to the job. I see the next level of automation in the area of the job setup. The hygiene factor is also very important for food and pharma customers, and a close study of the layout from this perspective is most essential while finalizing the machine. Lastly, I would stress the static management system, which will soon be the need of the hour as more and more customers switch to high-speed packing machines that are most intolerant to residual static.

After installing multiple dual turret slitter machines worldwide, how has your experience with this technology been so far?

Pragnesh Shah – Slitter rewinders with dual turret rewinds are the order of the day in these competitive times where the focus is to increase efficiency. Unlike duplex slitters, these machines run virtually non-stop, offering higher productivity, improved efficiency of man and machine, and optimal use of floor space. Consistency in performance is also higher as compared to duplex machines. Opting for dual turret slitters would also reduce the total number of slitters required to support a given plant capacity over a period of time.

You installed a ROBOSLIT machine from SP Ultraflex a few months back. How was your experience?

Pragnesh Shah – The OHP version of the Roboslit was installed at our plant in February 2021, and we have found its performance to be at par with the best in the world. The team at SP Ultralflex puts in a lot of effort in learning, researching, and understanding the customer’s pain areas and channelizes their inputs to their design department, leading to continuous improvements and innovations. They are also very supportive, understanding the significance of our queries, and give clear and meaningful answers.

Pragnesh Shah, plant head of the Constantia Parikh Packaging sub-cluster[/caption]

In general, most converters prefer compact, rear-loading slitter rewinders. But you have purchased the overhead model of the Roboslit series, the Roboslit OHP. What made you go for that model?

Pragnesh Shah – The most admirable quality in the OHP version is the overhead web movement. Substrates running between idle rollers at high speed tend to develop static charge and attract dust. This is not acceptable, especially when it comes to food and pharma customers. The substrate is always at a good distance from the floor level in the OHP layout, leaving no scope for the dust to contaminate its surface. Other advantages of the overhead path include easy access to the cutting section and better visibility of the running substrate. Last but not least, this layout improves the safety quotient of the machine – something that is non-negotiable within the Constantia Flexibles group.

To what extent did SP Ultraflex meet the expectations of Constantia Flexibles in terms of output, quality, operator friendliness, and safety standards?

Pragnesh Shah – To start with, safety and user-friendliness are of utmost importance to Constantia Flexibles, and both these aspects are well taken care of in the machine. Coming to the output, I have already spoken about the increased productivity of this machine by virtue of its dual turret rewind. I want to share another important dimension, which affects productivity – the ratio of rework. We have seen a drastic reduction in the percentage of narrow width coils that need to be edge corrected on doctoring machines, thanks to the better quality of finished reels produced on this machine.

How, in your opinion, does the SP machine compare with the European make machines in your plant?

Pragnesh Shah – It is a good indigenous technology at par with global standards, with certain additional features and a good team.

What is the future focus for Constantia Parikh Packaging in terms of capital equipment technology? As mentioned earlier, we are looking for indigenous machines which will fulfill our requirements and expectations. We have a robust technical evaluation team that defines the ‘what’ and ‘why.’ If all such conditions and expectations are fulfilled, we would prefer Indian make machines, thereby supporting the Make in India movement.

[slitterrewinder]

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[solventlesslaminator]

Analysis For Three Common Risk Control Points of Solventless Composite Technology

machine.html">solventless lamination machines. Significant advantages of the solventless composite process are reducing cost, high efficiency and energy saving, improving production safety, stability and product quality.

However, due to the immature solventless composite technology , and there are still some technical risks that are easily overlooked in the application for a flexible packaging company, leading to quality problems. Now we summarize three common risk control points of solvent-free composite technology.

1. The Technical Risk Of Increasing A Glue In Solventless Composite

Solvent-free composite adhesive with A glue and B glue, the adhesive mixing ratio is generally the weight ratio of A glue and B glue, rather than the volume ratio of both. The mixing ratio of the binder is usually determined by the adhesive manufacturer, as the proportion of the binder in different brands is generally different. The common ratios of A glue and B glue are 100: 80,100: 75,100: 50,100: 45. However, in the actual solvent-free composite production of flexible packaging companies, the ratio of the two-component adhesive will be disordered, which will affect the solventless quality of flexible packaging products.

Case

After printing, solvent-free compounding, the flexible structure of OPP / VMPET / PE has no quality problems.

The structural composite flexible bag is a low viscosity-free solvent-free binder brand and the proportion of A glue and B glue in actual composite production is 100: 67. When analyzing the cause of failure, we find that the bag is curled and the inner binder is not dry. Originally, because the composite film maturity is incomplete, prolongs the maturation time and then cuts into a bag. The problem of bag curling still exists and the opening performance has also deteriorated.

Combined with a ratio of A glue and B glue, it is not difficult to find that the bag is mainly caused by the excess of the A glue, because the solvent-free composite film is usually large and the effect of prolonging maturity is not obvious, water must be introduced into the cross-linking curing reaction with the -NCO.

The much more efficient methods are to rewind the composite film roll on a slitting machine and then increase the humidity of the workshop environment to absorb some moisture between the layer and the surface. The composite film, during aging, water will penetrate into the adhesive layer and reacted with an excess-NCO cross-linking curing reaction, so that the self-adhesive layer will be further completely cured, thereby effectively release the curling of the flexible packaging bags.

2. Risk Control For The Attenuation Of PE Membrane Peel Strength At Solventless Composite Material

A certain amount of linker is added to the film blow molding for reducing the friction between the film and the film, the film and the device, so that the surface of the film will be smoother, in order that the composite film operates successfully in the production process. Under normal circumstances, an excess sliding agent has added appropriately in the PE film, which can solve the phenomenon of abnormal increase in the friction coefficient of the solvent composite film after a certain extent, but this can also cause peel strength to be weakened, which is serious. When the aging is completed, the peel strength of the composite film is exceeded and in most cases, the peeling strength is reduced during the process of placing the composite film or during the cycle of the flexible packaging.

Case

The composite structure is a BOPA / PE film

Main parameters: a brand solvent-free adhesive, the amount of glue is 1.5 g / m2, aged at 40 ° C for 24 hours. The tracking and detection data of the peel strength of the composite film is as follows:

On October 13, the lateral peel strength was 15.37 N / m.

On November 4, the lateral peel strength was 4.62 N / m.

After the complex layer is peeled off, the surface of the PE film has a mist-like substance that can be wiped off.

On November 18, the lateral peel strength was 4.69 N / m.

It is closed to the final test data indicating that the peel strength of the composite film has reached a stable value.

Typically, the flexible packaging company only detects the peel strength of the composite film shortly after maturity. The composite film is rarely tracked during the process or the peel strength in the soft bag, which should be noted.

The migration of the solventless adhesive in the PE film produces a slipping agent, which is the main reason for the decrease in the peel strength of the composite film. We recommend a solvent-free adhesive. Add the formulated slipping agent to the formulation, so that the friction coefficient of the PE film in the solvent-free compound can be solved, and the problem of decrease in peel strength can also be solved.

3. Pay Attention To Identifying The Smell Characteristics Of The Solventless Adhesive

There are many factors that produce scent in the flexible packaging bag, such as residual solvent, ink resin, thin-film raw material resin, adhesive, etc. Although there is no solvent residue in a solventless composite, the resins and formulations in the solventless adhesive have a certain odor feature and some have effects after composite curing, even after the packaging. For flexible packaging companies, it is necessary to pay attention to the identification of the solventless composite film after the smell and prevent the problem.

a. In GB / T 10004-2008 standard, the detection method of packaging sensory indicators is specified, which is opening the box and lining the packaging film and immediately detect the smell.

b. Usually take a certain area of the composite films, cut into a 500 ml glass bottle, baked for 30 minutes at 60-80 ° C for detecting smell. It is also possible to seal the package in the air or actual content, rotating at a temperature of 50 to 60 ° C, tearing the package, and feel whether there is odor.

The odor of the composite film is mainly from a solvent-free adhesive. Therefore, the odor feature of the general solventless adhesive can be identified by the following method.

a. Take a certain amount of A glue and B glue with different brands for sensory testing and comparison.

b. Add a mixed solvent-free binder according to the specification to the glass bottle. Plastic film is placed in the bottom of the bottle and the cured adhesive is easily taken out and the crosslinking reaction is under 40-50 ° C. After an hour, the odor characteristics are determined. This method is more suitable for practical applications, including the odor characteristics of the resin itself.

Solvent-free composite technology is a production technology which is more and more widely used in the flexible packaging industry with the advantages of safety, environmental protection, saving costs. Through the learning of the common risk control points of solventless composite technology, the efficiency of solventless lamination will be improved.

[arisewebguiding]

What Is The All-in-one Web Guiding System

Once there is not an alignment of the coils, it will cause errors in the subsequent steps and the material wasting or the downtime of the machine. Therefore, when processing the web, the web guiding is necessary for the offset and it is widely used in a bonding machine, a printing machine, a coater, a paper machine, a dyeing machine, etc, which has various requirements for the winding and rewinding processes. An all-in-one web guiding system refers to the technical operation of the coils to keep the edge of the coil neat and consistent during spraying, printing, die-cutting, lamination, slitting, or other coil winding processes. Its wide applications have brought huge benefits to the coil industries. The all-in-one system has automated industries such as corrugated paper, textile, printing, labels, papermaking, plastic film, building materials, tires, and non-woven corrugated paper processing.

The Work Principle Of All-in-one Web Guiding System

The high-precision, high-speed, and high-efficiency coil automatic processing has high requirements for the lateral position of the controlled coil. Equipped with a high-performance automatic web guide system is the key to improving coil production capacity and output. The coil will shift laterally during moving, unwinding and rewinding. Therefore, the web guiding system can be installed in the above three positions for controlling the coil to pass through the designated position accurately.

All-in-one web guide machine adopts high-speed microprocessor, digital, modular and intelligent circuit design. The advanced programming, user-friendly interface, high-performance components and complete circuit protection design, make the system run continuously and stably. The response time of the control system is less than 0.01 seconds and the accuracy of the system itself can reach 0.01mm. During the coil winding process, the web guide sensor detects the position of the edge or line to pick up the deviation signal of the edge or line position.

Then the position deviation signal of the web guiding machine is sent to the web guide controller for logical operation. After the judges and processes of the control unit, it will control the drive motor to skew the web to the correct position.

The Functions & Advantages Of All-in-one Web Guiding System

The high-performance web guide system has a fast response time, high-speed CPU calculation and can support ultrasonic sensors, photoelectric sensors, CCD sensors for the different response of coils. It has the advantages of simple and practical operation, ball screw, high precision, low noise, maintenance-free, long service life, flexible installation.

Center compensation deviation web guiding can quickly guide the high-frequency feed errors. It integrates operation and control technology with a highly compact web guide. The guiding system has an innovative sensor detection real-time display and a real-time feedback system for system detection information.

The all-in-one system is driven by a brushless DC servo motor and precision ball screw, with compact structure, good mechanical rigidity, low inertia, high precision, suitable for high-speed and high-precision web guide in coil processing.

Three Detection Methods Provided By All-in-one Web Guiding System

The All-in-one web guiding system provides three different detection methods, which include edge detection, line tracking, or alignment detection. The drive system is driven by a brushless motor and the drive stroke is strictly proportional to the coil offset. The system can also be used in conjunction with different sensors to meet the needs of different coils, such as ultrasonic sensors, photoelectric sensors, CCD sensors, etc. The microcomputer digital controller provides precise control for the various functions of the guide system.

Daily Maintenance Of All-in-one Web Guiding System

1.Alignment: Tools, workpieces and accessories should be placed neatly. The web guiding system should be equipped with thorough protection equipment.

2. Cleaning: Cleaning inside and outside including all sliding surfaces, guidelines, gears, racks, etc, ensuring all parts will not leak oil, water, air, or electricity.

3. Lubricating: Refuel and change oil timely. The oil quality meets the requirements. Oil tanks, oil guns, oil cups, lumps, tubes should clean and keep complete.

4.Safety: The operation personnel should be familiar with the maintenance structure of the web guide system, complying with the operating procedures and reasonably use the all-in-one system with daily maintenance, carefully maintenance tools to prevent accidents.

For more information, please visit the page of why choose all-in-one web guide system.