Presser foot device for trouser loop machine and trouser loop machine

Abstract

The invention provides a presser foot device for a trouser loop machine and a trouser loop machine. The presser foot device for a trouser loop machine includes a fixed seat and two trouser loop pressers that can move up and down relative to the fixed seat. Both feet consist of two presser foot plates side by side, and a sewing zone formed between the two presser foot plates to allow the needles in the trouser loop machine to pass through, the two presser foot plates of each trouser loop presser foot have independent downward travel Procedure. In this application, the trouser loop presser foot is divided into two presser foot plates with independent downward movement strokes, so the two presser foot plates can control the respective downward movement strokes according to the thickness of the sewing materials below them, and adapt to the thickness of the sewing materials below them, Therefore, when the thickness of the trouser loops is different, the two presser plates in the presser feet of each trouser loop can give different pressures, avoiding the angle between the presser plates and the sewing material, thereby ensuring the tightness between the presser plates and the sewing material. The contact area is to ensure that the presser foot plate can effectively press the sewing material firmly, thereby avoiding the phenomenon of sewing skew and ensuring the sewing effect.

Description

technical field [0001] The invention relates to a presser foot device for a trouser loop machine. [0002] The present invention also relates to a trouser loop machine comprising the above-mentioned presser foot device for the trouser loop machine. Background technique [0003] In the garment industry, there are currently many types of trouser loop machines that can automatically staple trouser loops. Generally speaking, there is a presser foot device in the trouser loop machine, and the presser foot device includes two presser feet, which press the both sides of the folded trouser loop by the presser foot; for example, the Chinese utility model patent application number 200720110843.2 discloses An automatic nail loop machine. figure 1 It shows the state that a presser foot 100 presses the folded trouser loop 200 in the trouser loop machine. In the actual sewing process, the above-mentioned trouser loop machine usually has the following defects: when the thickness of the ...

AI Technical Summary

Problems solved by technology

In the actual sewing process, the above-mentioned trouser loop machine usually has the following defects: when the thickness of the folded trouser loop 200 is inconsistent, an angle is formed between the presser foot 100 and the trouser loop 200, so that the contact area between the two is small , the presser foot 100 cannot press the trouser loop 200 well, and it is easy to cause the trouser loop 200 to not be pressed firmly, and the sewing skew phenomenon will appear during the sewing process, which will affect the sewing effect

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