A double zipper threading machine

Abstract

The present invention belongs to the field of zipper threading machines, and particularly refers to a novel double-open zipper threading assembly machine, comprising a reverse threading machine and a forward threading machine, wherein a chain length adjustment mechanism is arranged between the reverse threading machine and the forward threading machine, wherein the reverse threading machine comprises a first frame, a first zipper pulling device, a chain splitting device, a first slider conveying device and a first slider positioning device, wherein the chain splitting device comprises a chain splitting mechanism and a chain splitting platform, wherein a belt pressing platform is arranged in front of the chain splitting platform, a pressing needle groove is formed at the front end of the belt pressing platform, and a belt pressing needle movable up and down is arranged above the corresponding pressing needle groove, wherein the belt pressing needle comprises a belt pressing part and a first minute needle matching the pressing needle groove, wherein the first minute needle is arranged at the lower end of the belt pressing part, and the lower end of the belt pressing part is a plane; the present invention has the advantages of improving production efficiency and being capable of reverse threading.

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