TH20067EX - Methods and machines for making zipper teeth parts - Google Patents

Abstract

Methods and machines for making zipper teeth parts From a metal wire with a rather Y-shaped cross-section Where the empty pieces are cut Or being cut from metal wire By the act of sharing between cutting dies And the hammer cut off And quite at the same time the metal wire was chamfered along the next cut. By edge chamfer To form a relatively V-shaped groove that extends in and along the surrounding surface of the head of the metal wire. And the outer surface of each of the two opposite leg segments of the metal wire The next shearing process produces a blank piece of material. Which was already chamfered At the edges surrounding the top and bottom Its protruding along the surrounding surface of the head And the outer surface of each leg Of blank material, a finished piece of zippered tooth that has been formed from chamfered blank Smooth When making touch and ensuring smooth sliding motion of the slider. Which will be able to guarantee the opening matter And close of the zipper smoothly

Claims (1)

1.How to make a zipper teeth piece A type in which a continuous long metal wire of a relatively cross-section is Y-shaped. That includes a header and a pair of legs Is entered at intervals in a vertical upward direction. Pass through the die cut at a predetermined pitch. The metal wire is then cut into blank pieces of material that are the thickness of each product. By this act of joint action between the cutting edge arranged at the rear end of the cutting die capable of being moved by the ram and the cutting edge of the third tightened cut-out hammer.