Plastic Zipper (Resin zipper, Vislon Zipper, Delrin Zipper) Plastic Zippers,Zippers Plastic,Zipper Plastic,Large Plastic Zipper,Plastic Zip Shenzhen Yiyixing Zipper Manufacture Co.,Ltd , https://www.yyxchina.com
Problem I. Equipment accuracy declines
In the post-press processing equipment, the structure of the automatic hot stamping machine and the automatic die cutting machine is basically the same, and is mainly divided into three parts: paper feeding, main machine and paper collection; the working principle is also basically the same, and the main part for controlling the processing accuracy is left, Right gauge and front gauges, and a paper guide system to help locate prints.
After a long period of use, parts of the machine are worn out, the accuracy is reduced, and the components of the paper guide system are also affected. Especially when the machine runs at a high speed and continuously for a long period of time, the damage to the gripper blade and the left and right guide wheel springs is even greater. In the case of high-speed operation for a long period of time, repeated movement of the tooth chip and the spring generates a higher temperature, causing metal fatigue. In this way, the rigidity of the dental piece and the elasticity of the spring are reduced, resulting in insufficient pressure of the gripper's gripper, which results in that the print cannot be accurately positioned in the front gauge position.
In order to prevent the accuracy of the bronzing machine and the die cutting machine from falling, it is necessary to use the equipment rationally. Never allow the machine to continuously run and run at maximum speed for 24 hours a day, and limit the factory production capacity of the machine. The unmachined product should be kept at rest; the various parts of the machine should be lubricated at ordinary times, and regular maintenance should be performed for the tooth row gripper and the guide roller spring.
Problem two, improper adjustment of the machine
In the hot stamping and die-cutting process, the gripper pressure of the gripper is too small to hold the edge of the paper, and the slippage of the paper occurs during embossing; the misalignment of the opening and closing movements of the paper-feeding teeth and the molars, and the feeding system The misalignment of these parts will make the transfer of paper incomplete or excessive; excessive force will lead to overprinting. Therefore, when adjusting, attention should be paid to the pressure of pick-up paper and the size of pick-up paper, especially the pressure of each paper-pressing wheel of the paper-feeding system. The start-up should also pay attention to being slow to fast.
Problem three, paper deformation
There are two cases of paper deformation:
1. The paper is cut irregularly, with beveled or wavy edges. Therefore, it is necessary to ensure that the cut-out paper reaches a right angle and straight edge; when cutting, do not repeatedly hit the edge of the paper so as not to cause wavy edges.
2. The moisture content of the paper is not stable. Mainly in some need to heat the process, such as UV curing, screen printing drying, hot stamping heating, oil drying and so on, the paper moisture content changes. In order to avoid paper deformation caused by changes in water content, each process should be handed over in a timely manner, the detention time should not be too long, and take certain protective measures to prevent the loss of natural moisture in the paper, such as protection with a protective film. And keep the workshop temperature, humidity and paper moisture balance. The loss of paper moisture caused by the heating of special processes should be compensated by adjusting the appropriate temperature and humidity to restore the moisture content of the paper to its original standard state.
In fact, there are many reasons for the poor post-press processing accuracy. As long as we carefully pay attention to all aspects of the processing process, sum up experience, and strictly control the use of good operating techniques and techniques, we can avoid it, and thus produce qualified products and improve Production efficiency.
Plastic zipper is a zipper, plastic teeth with polyester rice by color and by dye injection molding machine drain out.
Outline
According to the material zipper, zipper into three categories: Metal Zipper, Nylon Zipper , Plastic zipper. Metal zipper teeth is made of copper or aluminum row by row of teeth out of the machine, nylon zipper teeth are made of nylon monofilament wound centerline composition by heating the die, the plastic is a polyester plastic zipper teeth by dye color and through rice injection molding machine out of the row.
Plastic zipper can be divided by species:
1, closed-end zipper
2, open-end zipper (about interpolation)
3, two closed-end zipper (X or O)
4, double open end zipper (about interpolation)
Plastic zipper components
1. tape tape made of cotton yarn, chemical fiber or mixed fiber woven into a flexible belt for carrying chain zipper teeth and other components;
2. ribbed edge bead cloth belt used to carry the reinforcing part of metal or plastic fastener elements;
3. tendons rope rope rope middle finger ribbed by a multi-strand fiber composition;
4. refers to the element scoops metals, plastics and other materials were processed through a shaped teeth;
5. SMIC line filler cord is processed by multi-strand fiber cable made of nylon fastener chain for the production of rope;
6. The tooth chain chain refers to the teeth are arranged in a row;
7. The fastener stringer one side zipper chain chain teeth fixed in a cloth belt, said fastener stringer;
8. The chain belt on both sides of the zipper chain from engaging fastener stringer chain belt;
9. TDC top stop fixed to the fastener chain belt fastener chain pull timely limiting slider stopper slide fastener chain belt;
10. The next stop is fixed to the bottom stop tooth chain belt, limiting the slider when the slide fastener stringer chain teeth pulled, and so both sides of the fastener stringer can not be completely separated from the stopper;
11. The front and rear portions of the element does not take the lead tape, said the lead on Back & forth head tape zipper, the only side to take the lead before the next stop after the end of the lead;
12. The cannula (also called latches) pin separable fixed in the open end of the end of the zipper, for completely separate tubular member chain belt;
13. The outlet box retainer secured to the end of the zipper open end, entirely separate block member for chain belt;
14. The double open end stops at one kind of the cannula with two pin for the tubular member profile zipper on double open end;
15. Strengthening tape strengthened tape for enhanced intubation, sockets and tape bonding strength, improve the life of the fastener composite sheet;
16. The slider slider moving part and pull the chain engaging teeth;
17. The puller is a component of the pull-tab slider, which can be designed into a variety of geometric shapes and the slider body coupling or through middleware and the slider body coupling realize zipper closure;
18. The intermediate coupling member coupling the connecter of the slider body and the pull tab of the intermediate member;
Plastic zipper features
1. Resin zipper can be used in all kinds of occasions, but generally prefer to use in clothing pockets.
2. The common fastener head is painted, sometimes used plating.
3. acetal copolymer resin zipper is the main material, the cost of one nylon zipper and metal zipper in the middle, kind of zipper durability than metal zipper and nylon zipper good.
Plastic zipper choice
1, must be closely linked to the microphone on the microphone clamp tooth or teeth, must ensure that its robust and down a perfect ending.
2, resin Zipper Slider options: modeling resin zipper pull more, finished either small detail to be rough magnificent. But no matter what kind of slider, slider have to feel comfortable pull start whether, or not on the zipper pull Bulong phenomenon will not occur. Now available in the market resin slider comes with self-locking device, so after zip, get after the next test whether the lock fixed zipper will slide down.
3, tape selection: As raw material resin zipper tape is polyester yarn, thread, SMIC and other different types of silk thread, whose components have different coloring, so on the same Color Zipper prone in this case when you select to choose even dyeing cloth tape, no turbidity point, cloth made with different fabrics are soft to the touch-based.
4. Select the microphone teeth: resin zipper teeth are also metal plating color microphone, so care must be taken when choosing color plated surface is uniform, there is no phenomenon of flower color, is smooth zipper pull up and down. Zipper pull together, you must observe about whether teeth are meshing with each other, asymmetrical zipper teeth will certainly affect the use of the zipper.
The problem that post-press processing accuracy should be avoided
Due to the declining equipment accuracy, improper machine adjustments, and the presence of three problems with paper deformation, improving the accuracy of post-press processing has become a headache for many printers. The generation of these problems and solutions to preventative measures are described below.