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What is the structure and principle of zipper
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Edit： Browse：1474 Date：2014-07-14
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With human society economy and the development of science and technology, the zipper by the original metal material to nonmetallic material, single varieties of a single function to develop many kinds of comprehensive function of many specifications, has a simple structure to the end of the delicate and beautiful, colorful, after a long evolution process.
1. The chain tooth of the zipper has the size and the tooth shape is different, but the chain teeth of the same zipper must be the same size. Zipper head modelling is abound change, can make a handle, can make adornment again. The zipper head can also be used as insurance, when the zipper pulls together will not automatically slip away. The working principle of the zipper is simple, that is, the two zipper straps can be pulled or pulled apart, or they are randomly locked and opened.
2. The working principle of the zipper chain tooth is that each tooth is a small hook that matches the hole in the other side of a small tooth on the opposite side. This kind of zipper is very firm, only the slider allows the teeth to open when sliding.
3. The matching two chain teeth can be pulled or pulled apart at will through the function of the pull head. When pull head to move forward, two chain tooth wear chain teeth feet by the shape of the closed cavity in the head Angle limits, got shoved, thus each other there are rules of engagement, this creates a zipper closure state. When pull head to zipper vertices, after check on the fold is greater than the width of the width of the inner cavity is the most narrow head, and to pull up to a limit, make the head not take off from the chain, when pull the head back, because of the pull head inner cavity body column on both sides of the cylinder composed of splitting Angle (dihedral Angle) the role of the chain tooth's front teeth with tooth valley separated one by one, make the two chain tooth belt separation. Pull the head to the bottom of the chain, because the width of the lower end (also called the upper and lower code) is greater than the width of the inner cavity of the head, so that the pull head does not fall off from the chain.
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