Roller car of thread hooking mechanism

Abstract

The invention belongs to the field of sewing equipment, and particularly discloses a roller car of a thread hooking mechanism. The roller car comprises an elastic sheet, a suction nozzle, a thread hooking hook, a driving lever, a thread hooking cylinder assembly and a cylinder fixing frame. According to the difference of sewing conditions, the thread pressing pressure can be adjusted by a pressureregulating nut, so that an upper thread can be stably cut off, and the attractiveness of a sewing stitch is not influenced by the tension of the upper thread also can be met; after automatic thread trimming is completed after sewing is completed, a thread end of the upper thread is withdrawn through the thread hooking hook, so that the thread of the upper thread is not repeatedly sewn during seamreinforcing, and a lump of threads are prevented from being accumulated on the back face of a sewn product; the thread hooking position can be flexibly adjusted, and when the thickness of a sewing material changes, the thread hooking position can be flexibly adjusted, so that the thread hooking time is more reasonable; the thread hooking mechanism adopts a plurality of mutually matched structures, is small in occupied space and more suitable for shoemaking occasions with compact operation space, and the whole mechanism is simple to install and convenient to debug.

Description

technical field [0001] The invention relates to the technical field of sewing equipment, in particular to a roller car with a hooking mechanism. Background technique [0002] There are many roller car models in the existing market, such as: servo direct drive roller car, three-automatic roller car, three-step roller car and traditional, etc., which are mainly used in manufacturing enterprises such as shoemaking, bags, and car cushions. Stitches are scattered at the beginning and end of the seam, and the stitches need to be reinforced at the beginning and end of sewing (that is, forward and backward sewing several times), and a pile of threads will always be formed when the seam is reinforced. , which affects the appearance quality of sewn products and affects the comfort of use. [0003] In order to effectively solve the above-mentioned sewing shortcomings, this patent designs a thread hooking mechanism to retract the upper thread ends after sewing, so that the upper thread...

AI Technical Summary

Problems solved by technology

[0002] There are many roller car models in the existing market, such as: servo direct drive roller car, three-automatic roller car, three-step roller car and traditional, etc., which are mainly used in manufacturing enterprises such as shoemaking, bags, and car cushions. Stitches are scattered at the beginning and end of the seam, and the stitches need to be reinforced at the beginning and end of sewing (that is, forward and backward sewing several times), and a pile of threads will always be formed when the seam is reinforced. , not only affects the appearance quality of sewn products but also affects the comfort of use

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