Intelligent multi-functional sewing machine

Abstract

The invention provides an intelligent multi-functional sewing machine and particularly relates to the technical field of sewing machine manufacturing. The intelligent multi-functional sewing machine is characterized in that a composite transmission wheel is fixed on a rear output shaft and equipped with a swinging column; the swinging column is positioned, runs and transfers a swinging source inside the front positioning part of a rotating connecting fork rod, as well as is driven by a driving source to be positioned, idle and perform thread trimming, thread loosening and presser foot liftingactions on the propping circular arc-shaped surface of the rotating connecting fork rod; a presser foot lifting cam component is rotationally propped against a presser foot lifting ejector plate; thepresser foot lifting ejector plate acts on a presser foot lifting ejector rod so as to lift a presser foot; a thread loosening salient point has the function of triggering a thread loosening device ejector rod; a thread trimming crank, namely a pushing component, is mounted and fixed on a front output shaft; and a rotating ball arranged on the thread trimming crank runs and performs thread trimming action in a thread trimming cam. According to the intelligent multi-functional sewing machine, the four actions of presser foot lifting, thread loosening, reinforcing and back-and-forth sewing, as well as thread trimming are controlled through a motor, so that the sewing machine production cost can be greatly reduced, and the problem that the sewing machine manufacturing cost and the noise are high because electromagnets are adopted for thread loosening can be effectively solved.

Description

technical field [0001] This application proposes an intelligent multifunctional sewing machine, which specifically relates 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 structure, high ...

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

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