The Specific Classification And Technical Specifications Of Zippers

　　 zipper Material classification: nylon zipper, resin zipper, metal zipper. Nylon zipper: invisible zipper, double bone zipper, woven zipper, reverse zipper, waterproof zipper and so on. Resin zipper: gold (silver) zipper, transparent zipper, translucent zipper, animal luminous zipper, bud zipper, diamond zipper. Metal zipper: Aluminum zipper, brass zipper (brass, white copper, bronze, red copper, etc.) ), black pull zipper. Classification by species. Closed tail zipper and open zipper (left and right). Double closed tail zipper (X or O) 4. Double Zip zipper (left and right).

Closed tail: it does not need to divide the high and small parts when it is fixed, so it can sometimes turn the head open. Sometimes, the density of the edge weft is loose and easy to appear the silk thread phenomenon. It affects the appearance better. It is better to put the pattern in the width of the bottom stop by weaving the upper and lower one, so that it is not easy to thread through the tape. The upper position must be leveled, the front 2.2mm takes the lead, the 1.8mm takes the lead, and the injection front and rear yards take the lead to ensure the 4.0mm.

　　开尾：定寸选齿较难，因牙距比较小(1.2mm)故最好选用固定码装，右插左高右低，需手工修咪，超音半颗咪压到根，两侧带胫分布均匀，且面线不断，打孔布脚长约8mm，压方块插销时拉的速度不宜太快，两边用力均匀且拉到位，压机关慢一定要起作用，这样模具不易损坏，压力由高压转为低压，进行缓慢关模，然后高压动作压力由低压转为高压，进行高压锁模，两个感应开关相差20mm左右即可，由于3#尼龙厚度较薄，故感应开关动作差较小，对调整感应开关位置要求较高，具体调整方法：当拉链空档时感应开关灯亮，走到拉链咪牙高出部分，感应杆动作，感应开关灯灭，钓针下压，勾住贴布合咪牙的孔到位冲下。

　　 nylon zipper Ordinary opening: fixed size and selected teeth should be adjusted at any time according to different code (because of the change of tooth spacing), ensure that the right inserts the left, the right and the lower, while the left side is inserted. On the contrary, the supersonic half grain is pressed to the root, the position of the adhesive tape should be leveled, so as to ensure that the pinhole of the bolt block is punched to the bottom, and the length of the punching cloth is about 9.5mm, so as to ensure that the bolt is loaded to the root, the bolt is penetrated through the puncture needle, and the side of the box is secured with the side of the tibia, and the piercing needle is penetrated through the needle. When repairing the moulds, attention must be paid to the lower die slope, that is, the right inserts the left, the right and the lower, and the left side should be inserted. Note: when you change the mold, you should pay attention to the starting position, because the mold stroke is not the same, otherwise easy to damage the mold. The specific adjustment can be put into the mold with a piece of paper. The hand wheel is just cut off, the paper is just cut off, the perforating foot is 9.5mm, and the pressure block is inserted. Please refer to the 3# nylon open end press.

Nylon double open tail, fixed size, supersonic and 5# nylon zipper, perforated cloth foot about 13cm, ensure the square bolt is loaded to the root, four pinholes are Pierce in the middle, the square must fall in place, otherwise it is easy to appear defective products, separate parts and pull heads should be matched. If special pull head is taken, it is recommended that the goods should be tested first before they are produced, and whether they are matched, punched needle, deviated from the center or the pieces are broken.

　　 Resin Zipper Pull head mouth high 2.6-2.7MM, mouth width 4.75-4.85 combination width 4.55+ 0.05 thickness 2.4+0.05. Closed tail: when pressing upward and downward, the temperature, injection delay and holding time should be adjusted three. If the zipper size is about 15CM, a certain quantity can be used with one die and two strips. Open: when making an inch, make sure to take the lead. FONT face= "Times New Roman" >4.5cm, (17 grains of teeth), the supersonic tape has a clear pattern, uniform left and right, and the position is about 1.5mm from the tooth, so as to ensure that the hook can be fastened tightly, and the word is opened. Press adjustment: high pressure should not exceed 100kg/cm2, shoot pressure 40kg/cm2, keep pressure 30kg/cm2, low pressure 10kg/cm2 below, high pressure, keep pressure cooling time should be more than 0. 1 seconds, specific according to the actual product (zipper type) to be adjusted again.