Multifunctional structure of intelligent sewing machine

Abstract

The invention provides a multifunctional structure of an intelligent sewing machine, and particularly relates to the technical field of sewing machine manufacturing. The multifunctional structure is characterized in that a swing column operates in a swing positioning groove of a rotary connecting fork rod, a driving source drives the swing column to perform positioning idling on an abutting arc surface of the rotary connecting fork rod to perform thread trimming, thread loosening and presser foot lifting actions, a composite transmission wheel is further provided with a presser foot lifting cam part, the presser foot lifting cam part abuts against a presser foot lifting top plate in a rotating mode, the presser foot lifting top plate acts on a presser foot lifting top rod to achieve presser foot lifting, the composite transmission wheel is further provided with a thread loosening protruding point, and the thread loosening protruding point is used for triggering a thread loosening device ejector rod. According to the multifunctional structure of the intelligent sewing machine, the problems of high manufacturing cost and high noise of the sewing machine due to adoption of an electromagnet for thread loosening are effectively solved, a purely mechanical thread loosening scheme is ingeniously combined with the presser foot lifting mechanism and a reinforcing seam free sewing pattern stitch length automatic adjusting mechanism, and the excellent technical effect that four sewing actions are achieved under one motor is achieved.

Description

technical field [0001] This application proposes a multifunctional structure of an intelligent sewing machine, specifically relating to the technical field of sewing machine manufacturing. Background technique [0002] As a sewing machine, the sewing machine has developed from the previous pedal-type household sewing machine to the current motor-driven industrial sewing machine, which has the functions of thread loosening, thread trimming, presser foot lifting, and reinforcement sewing. In terms of sewing machine technology, the most common is to use multiple electromagnets as power sources to respectively drive the actions of thread loosening, thread trimming, presser foot lifting and reinforcement sewing. In recent years, a combination of stepper motor and electromagnet has been used to drive and control thread loosening, thread trimming, presser foot lifting and reinforcement seam respectively. However, there are still many different disadvantages, such as complex struct...

AI Technical Summary

Problems solved by technology

But there are still many different shortcomings, such as complex structure, high cost, poor product stability and durability, etc.

In addition, some sewing machines need to return to the initial position before performing other subsequent sewing actions during the sewing action, so the hysteresis between each action is obvious, and it cannot achieve the same rapid response as multiple motors and electromagnets control multiple sewing actions. , it is necessary to improve the transmission efficiency of the sewing machine and overcome the problem of action hysteresis

Images