subject: Method Of Forming Metal Zipper Teeth [print this page] A method for forming metal zipper teeth includes following steps: a step of forming embryonic teeth, a material wire being stamped and cut by way of an upper blank mold and a lower blank mold to form embryonic teeth detaching from the material wire.
Step of corner cutting, redundant material at two outer ends on the open end of each of the embryonic teeth being removed by way of an upper corner cutting mold and a lower corner cutting mold so that almost finished zipper teeth can be obtained; and a step of forming, each of the almost finished zipper teeth being worked to have a tooth recess at the top thereof and a tooth jut at the bottom thereof by way of an upper forming mold and a lower forming mold and finished zipper teeth being complete.
Forming device of metal zipper teeth, comprising: a blank mold, providing an upper blank mold and a corresponding lower blank for stamping and cutting material wire as embryonic teeth with approximate shape of the zipper teeth; a corner cutting mold, providing an upper corner cutting mold and a lower corner cutting mold for removing two front ends of an open end of each of the embryonic teeth; a forming mold, providing at least an upper forming mold for stamping a tooth recess in each of the embryonic teeth and a lower forming mold corresponding to the upper forming mold for forming the tooth recess with the upper forming mold; and a rotary mold base, being disposed with the lower corner cutting mold and the lower forming mold and being capable of turning a preset angular displacement.
The method for forming metal zipper teeth, comprising following steps: a step of forming embryonic teeth, a material wire being stamped and cut by way of an upper blank mold and a lower blank mold to form embryonic teeth detaching from the material wire; a step of corner cutting, redundant material at two outer ends on the open end of each of the embryonic teeth being removed by way of an upper corner cutting mold and a lower corner cutting mold so that almost finished zipper teeth can be obtained; and a step of forming, each of the almost finished zipper teeth being worked to have a tooth recess at the top thereof and a tooth jut at the bottom thereof by way of an upper forming mold and a lower forming mold and finished zipper teeth being complete.
Metal zippers are frequently seen in our daily lives and in fact, the metal zippers are developed much earlier than the nylon zippers and fiber reinforced plastic zippers. Usually, the metal zippers can be divided into aluminum zippers and copper zippers.
The crux of the present invention is to provide a method for forming metal zipper teeth includes following steps: a step of forming embryonic teeth, a material wire being stamped and cut by way of an upper blank mold and a lower blank mold to form embryonic teeth detaching from the material wire; a step of corner cutting, redundant material at two outer ends on the open end of each of the embryonic teeth being removed by way of an upper corner cutting mold and a lower corner cutting mold so that a most finished zipper teeth can be obtained; and a step of forming, each of the almost finished zipper teeth being worked to have a tooth recess at the top thereof and a tooth jut at the bottom thereof by way of an upper forming mold and a lower forming mold and finished zipper teeth being complete.
The cord holding device 5 is conventional device for and can be provided at formed zipper teeth D and the cord b can be held to the formed zipper teeth D while the cord b moves upward to pass through the cord holding device 5 so as to form a zipper strip with a lateral side thereof having zipper teeth. by way of automatic control with programming.
by: Bowman
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