Sewing and embroidering process of high-speed intelligent thread-hooking trimming leather sewing and embroidering machine

Abstract

The invention relates to a sewing and embroidering process of a high-speed intelligent thread-hooking trimming leather sewing and embroidering machine. The technical problems that upper thread is so tight as to be snapped when thick thread used for a thick embroidery material is trimmed, cloth pressing force of a press foot is not enough, press foot drive and needle rod drive cannot be controlled respectively independently, the thick thread cannot be trimmed, thread hooking displacement cannot be controlled and the like in the prior art can be solved sequentially through a thread-loosening thread-passing device, a thread-hooking line take-up device, a press foot independent-driving mechanism and a trimming restorer. The sewing and embroidering process has the advantages that tension of the upper thread is moderate when the thick thread is trimmed, the lowest position of the working height of the press foot can be adjusted intelligently, the press foot drive and the needle rod drive are controlled respectively independently to improve sewing and embroidering speed and efficiency of the machine, yield is improved, thick thread trimming operation is simple, thread loosening is avoided in trimming, a pair of scissors is long in service life, and thread hooking is controlled easily, and the like.

Description

technical field [0001] The invention belongs to the technical field of sewing and embroidery for leather sewing and embroidery machines, and in particular relates to a sewing and embroidery process for a high-speed intelligent thread hooking and trimming leather sewing and embroidery machine. Background technique [0002] The existing computerized lockstitch embroidery machine realizes embroidery by computer automatic control. Since one machine has multiple heads and one head has multiple needles, compared with a single lockstitch embroidery machine, manual operation has obvious advantages. But it still has obvious disadvantages, that is, the embroidered material is single, and the pattern is only filled with thin threads one by one. Repeated embroidery causes the fiber of the embroidered material to be broken, and because of the increase in the thickness of the embroidery pattern, concave and convex wrinkles are formed around the embroidery pattern, which seriously affects...

AI Technical Summary

Problems solved by technology

[0014] The object of the present invention is to provide a high-speed intelligent thread hooking and thread trimming leather sewing and embroidery process, which solves the problem of In the existing technology, when thick thread is used for embroidery, the upper thread is too tight and breaks when the thread is trimmed. And scissors have short service life, hook line displacement can not be controlled and other technical problems, to achieve moderate upper thread tension during thread trimming of thick threads, intelligent adjustment of the lowest working height of the presser foot, independent control of presser foot drive and needle bar drive, without It will affect the reaction force of each part driven by the needle bar, thereby improving the speed and efficiency of machine sewing and embroidery, increasing the output, easy operation of thick thread trimming and cutting, no wool in thread trimming, long life of scissors, easy control of thread hooking and other beneficial effects