Zipper Classification

One. Classified according to material: nylon zipper, resin zipper, metal zipper

1. nylon zipper: stealth zipper, double bone zipper, braided zipper, reverse zipper, waterproof zipper, etc.

2. resin zipper: gold (silver) zipper, pparent zipper, plucent zipper, animal luminous zipper, bud zipper, diamond zipper.

3. metal zipper: Aluminum zipper, brass zipper (brass, copper, bronze, copper, etc.), black pull zipper.

Two. Classification by species.

1. closed tail zipper

2. open zipper (left and right)

3. double closed tail zipper (X or O)

4. double tail zipper (left and right)

Three. Classification and operation process according to specifications

3, 4, 5, 7, 8, 9,...

20

The size of the model is directly proportional to the size of the zipper teeth.

Four. Specific technical specifications of zippers

1.3 invisible zipper

Combination width 4.15+0.03 single width 2.65+0.03 thickness 2.10+0.05mm

Galvanized pull head: mouth width 4.4mm mouth high 1.9mm

Baking paint pull head: mouth width 4.35mm mouth high 1.85mm

Ordinary belt is suitable for thick fabric, and the ribbon is suitable for thin fabric.

Common end: advantages: high output (adjustable speed); disadvantages: sometimes the root can not be reached.

Type U top stop: advantages: upper limit can be pulled to the root, suitable for clothing required to root; disadvantages: low yield, 4000 /8 hours.

Factors that can easily cause 3 invisible zippers defective products:

Big knife bend; when the inch is fixed, the joint of the micro tooth is slightly split, causing the bottom stop welding to be in place, and the upper and lower ends also show the teeth, so that the upper end is easy to fall off.

The length of the drawing head is not covered by the paint.

Nylon 2.3 zipper

Combination width 4.15+0.05 single width 2.65+0.03 thickness 2.00+0.05mm

Pull the head high: 2.05-2.15 pull the head width: 4.2-4.25

Closed tail:

When you set the inch, you do not need to divide the high and low meters, so sometimes you can turn the head open. Sometimes the density of the edge weft is too loose.

The width of the width is covered by a pattern of weaving, so that it is not easy to thread through the tape. The top position must be leveled, the front 2.2mm is taken, and the rear lead 1.8mm, and the injection front and rear code takes the lead to ensure 4.0mm.

Cotter:

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It is easy to cause the 3 nylon zipper defective factor: because of the reason of code installation, the surface line is easy to break when the inch is fixed, and the ultrasonic half is not pressed to death, causing the pressure to pull off the tail.

Note: 3 nylon ends must be pulled open, such as normal loading and injection molding.

Nylon 1.5 zipper

Pull head mouth high: 2.9-3.0 width: 6.5-6.6 width: 6.45+0.05 single width: 4.15+0.05 thickness: 2.70+0.05

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 inserting the left, the right and the lower, and the left side being inserted. Otherwise, the strength test should be carried out and the production can be made after being qualified.

It is easy to appear the defective factor: because the opening cloth is too short or too long, the strength is not enough, the bolt can not be loaded to the root, causing the square head to be crooked and not fit well, and the strength is not up to the standard value.

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 cutting length is 9.5mm, and the pressure block is inserted. Refer to the 3 nylon open end press.

1. 5# nylon double opening

1 set the size of the supersonic and 5 nylon zipper, the length of the perforated cloth is about 13cm, to ensure that the square bolt is loaded to the root, and the four pinholes are piercally piercated. The diamonds must fall in place, otherwise the inferior products are likely to appear. The parts and the pull heads should be matched. If a special pull head is taken, it is recommended that the goods should be tested first before the production is done, whether the matching is complete, the needle is punched, the center is broken off from the center or the pieces are broken, and the solution is pressed backplane in different directions.

2.3 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 microteeth, so as to ensure that the punching 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.

Factors prone to defective products:

Exposed shank (the reason is whether the positioning pin of the upper and lower die is broken or not).

Latch off (pressure is adequate, pressure and cooling time enough).

Square cloth seam small (press zipper to cool and then pull the head).

1.5 resin zipper

Pull head mouth high 3.2-3.3MM, mouth width 6.05-6.15 combination width 5.75+ 0.05 thickness 2.95+0.05

Closed tail: refer to No. 3 resin closed tail.

Open: make sure to take the lead 5cm (14 particles of teeth), the thin teeth take the lead 5.1cm (21 particles of teeth), the supersonic tape is clear and uniform, and the location is about 2mm from the implants, ensuring that the crochet hook is firmly fastened and the word is opened.

Double open tail: the location of the supersonic tape is about 2.5mm from the Microtel. The rest is the same. If the resin zipper tape is pressed too deep, then the pressure will be opened. The root of the belt will break easily.

1.8 resin zipper: pull head mouth high 4.15-4.25MM, mouth width 8-8.1 combination width 7.4+ 0.05 thickness 3.9+0.05

Open tail: set the inch row to take the lead 5.9-5.95 (14 grain teeth), the fine tooth takes the lead 5.55-5.6cm (23 grain tooth).

2.10 resin zipper

Pull head mouth high 4.15-4.25MM, mouth width 8.9-9 combination width 8.2+ 0.05 thickness 3.95+0.05

Open tail: set the inch and row the lead 6.05-6.1 (12 particles of teeth), the pressure should be raised on the basis of 5, and the time will be longer to ensure that the square bolt is full and smooth.

3.3 metal zipper

Pull head mouth high 2.1-2.2MM, mouth width 4.55-4.65 combination width 4.45+ 0.05 thickness 1.95+0.05

Closed tail: after fixing the inch, the mica must remove the damaged teeth. The upper and lower ends are neat and must be secured with tibia.

Open: the cloth is about 1.8mm away from the tooth. It ensures that the hook can be fastened and the length of the punching cloth is about 8mm. It ensures that the bolt fits into the root and punches the needle to the tape and is centered.

4.5 metal zipper

Pull head mouth high 2.7-2.8MM, mouth width 6.0-6.05 combination width 5.90+ 0.05 thickness 2.6+0.05

Closed tail: refer to metal zipper 3.

Open the tail: after fixing the inch, remove the bad MI, paste the cloth about 1.8mm from the teeth, ensure that the hooking hook can be fastened and the length of the perforating cloth is about 8.5mm, so as to ensure that the bolt is loaded to the root, and punches the pin hole to the adhesive tape and is centered.

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