Presser foot mechanism for sewing machine and sewing machine

Abstract

The invention discloses a presser foot mechanism for a sewing machine. The mechanism includes a presser foot, an auxiliary press bar connected with the top of the presser foot, and a presser foot auxiliary driving part, wherein the presser foot auxiliary driving part is connected with the auxiliary press bar through a compressed first elastic element and used for reducing pressure, applied by thefirst elastic element through the auxiliary press bar when the presser foot is lifted, on the presser foot. The presser foot auxiliary driving part can reduce acting force applied on the first elasticelement, the compression degree of the first elastic element is reduced, the elastic force is reduced, naturally the pressure applied by the first elastic element on the auxiliary press bar is reduced, correspondingly, the pressure applied by the auxiliary press bar on the presser foot is reduced, the situation that the presser foot can not be lifted is avoided, the fault rate is thus reduced, and therefore, the work reliability of the provided presser foot mechanism for the sewing machine is improved. The invention further discloses the sewing machine including the presser foot mechanism, and the work efficiency is easily enhanced.

Description

Technical field [0001] The invention relates to the technical field of clothing equipment, in particular to a sewing machine presser foot mechanism. The invention also relates to a sewing machine. Background technique [0002] The material pressing mechanism of the sewing machine usually includes a pressing foot for pressing the cloth, which is one of the key auxiliary parts in the sewing process, so it is particularly necessary to improve the material pressing mechanism. [0003] The existing material pressing mechanism is divided into automatic type and foot-controlled type. Due to the high work intensity and difficult operation of the foot-controlled material pressing mechanism, as the demand for automation and intelligent development of sewing machines increases, the automatic pressing mechanism The application is becoming more and more common. Automatic material pressing mechanism usually includes electric pressing mechanism, pneumatic pressing mechanism, etc. Considering th...

AI Technical Summary

Problems solved by technology

However, there are still many defects in this type of electromagnetically driven presser foot mechanism. For example, due to the excessive pressure applied to the presser foot by the existing presser foot mechanism, it is very likely that the presser foot will be exposed to accidents such as serious heating of the electromagnet or sudden thickening of the cloth. It cannot be lifted normally, the failure rate is high, and the work reliability is poor

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