Thread clamping apparatus of sewing machine and operation method of thread clamping apparatus

Abstract

The invention provides a thread clamping apparatus of a sewing machine and an operation method of the thread clamping apparatus. The thread clamping apparatus comprises a machine head, a needle, a rotating shuttle, a first thread clamper arranged on the machine head, a second thread clamper and a thread picking rod; the needle is provided with a hole which is used for a sewing thread to pass through, the sewing thread successively goes round and passes through the second thread clamper, the thread picking rod, the first thread clamper and the hole of the needle, and when the needle downwardlypierces a fabric, the second thread clamper releases the sewing thread; and after the sewing thread is hooked by the rotating shuttle disposed below the fabric, and when the thread picking rod upwardly moves to collect the thread, the first thread clamper clamps the sewing thread. By adopting the thread clamping apparatus and the operation method thereof, the thread clamping time and the thread release time can be accurately adjusted, the risk compensation can be controlled, the needle can be prevented from being broken or a bottom thread can be prevented from being carried out when in sewingoperation, and the attractiveness of a sewing product can be ensured.

Description

[0001] This application is a divisional application of an invention patent application titled "Sewing Machine Bird's Nest Removal Device and Method of Use", with a domestic application date of June 24, 2015, and a national application number of 2015103494116. technical field [0002] The invention relates to a sewing machine removing bird's nest device. [0003] The invention also relates to a method for using the sewing machine removing bird's nest device. Background technique [0004] When the sewing machine sews fabric, it is necessary to leave a certain length of thread at the needle eye of the machine needle at the beginning of sewing, so as to ensure that the thread will not come out of the needle eye when sewing starts, but a certain length of thread on the needle eye of the machine needle is at the beginning of sewing. When sewing, it will stay in the initial sewing position of the sewing material, which will affect the appearance of the sewing material. [0005] Th...

AI Technical Summary

Problems solved by technology

[0012] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a sewing machine bird's nest removal device and its use method, which are used to solve the problem that thread ends are easy to accumulate under the sewing material during the sewing process of the sewing machine in the prior art, forming a bird's nest-like thread ball The problem

Images