Automatic thread trimming mechanism and sewing machine

Abstract

The invention belongs to the technical field of sewing, and particularly relates to an automatic thread trimming mechanism and a sewing machine. The automatic thread trimming mechanism comprises a supporting unit, a thread trimming unit and a sewing unit, wherein the supporting unit comprises a table body, a supporting rod and a supporting frame; the sewing unit comprises a sewing machine head and a sewing needle and thread; the supporting rod is fixedly connected to the right side of the upper surface of the table body; the upper surface of the supporting rod is fixedly connected with the supporting frame; the end, away from the supporting rod, of the supporting frame is fixedly connected with the sewing machine head; and the sewing needle and thread are slidably connected inside the sewing machine head. Automatic trimming of the sewing thread is achieved, so that the labor is reduced, the sewing efficiency is improved, an operator is prevented from making direct contact with a trimming edge, and the personnel injury caused by misoperation is avoided; waste cloth accumulated on a table top of the sewing machine is cleaned in time, so that the situation that the sewing efficiency is affected by the waste cloth accumulated on the table top of the sewing machine during sewing is avoided; and when the waste cloth is crushed, line winding on the cutter surface is avoided, so that the waste cloth is crushed more thoroughly, and the crushing efficiency is further improved.

Description

technical field [0001] The invention belongs to the technical field of sewing, in particular to an automatic thread trimming mechanism and a sewing machine. Background technique [0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing materials; the sewing machine can sew cotton, hemp, silk, wool , artificial fiber and other fabrics and leather, plastic, paper and other products, the stitches are neat and beautiful, flat and firm, with fast sewing speed and easy use. And it derived art forms such as hand-push embroidery and computer embroidery. However, the traditional sewing machine manually cuts the sewing thread after sewing, so that the length of the sewing thread threaded on the needle is not suitable, resulting in the need to re-thread the thread when sewing again, reducing the sewing efficiency, and easily causing some problems when sewing fabrics....

AI Technical Summary

Problems solved by technology

[0003] In order to make up for the deficiencies in the prior art, the operator is easily injured by manual thread trimming. Manual thread trimming causes the sewing thread on the needle to be cut in different lengths, which easily makes the sewing thread on the needle off the thread, and waste is accumulated on the sewing machine. Cloth cannot be cleaned and crushed in time, which affects sewing efficiency, and the waste cloth crushing blade is easy to entangle the thread. The invention proposes an automatic thread trimming mechanism and sewing machine

Images