Upper scissors mechanism of circular knitting machine

Abstract

The invention discloses an upper scissors mechanism of a circular knitting machine. The upper scissors mechanism comprises an upper scissors seat and an upper scissors piston rod, and is characterized in that: the upper scissors seat is cylindrical; a circular hole is formed inside the upper scissors seat; the upper scissors piston rod is directly arranged in the circular hole of the upper scissors seat, and is limited through a guide pin; an upper scissors air cylinder pressure spring is sleeved outside the upper half part of the upper scissors piston rod; the upper end of the upper scissors piston rod is provided with a threaded hole which is screwed together with an air pipe provided with an external thread; the lower end of the threaded hole of the upper scissors piston rod is provided with a vertical air flow channel; and upper scissors are directly riveted and fixed at the lower end of the upper scissors piston rod. The overall structure of the upper scissors mechanism is simplified, and the upper scissors mechanism is easy to process and is convenient to install; and moreover, the air flow is increased, and atmospheric air passing through the air channel directly blows waste yarns and accumulated yarns for clearing, so that the problem of yarn blockage on the edges of the upper scissors is solved effectively.

Description

technical field [0001] The invention belongs to the technical field of knitting machines, in particular to an upper scissors mechanism of a circular knitting machine. Background technique [0002] At present, the upper scissors mechanism in the computerized seamless knitting underwear machine mainly cooperates with the rotating lower scissors to generate shearing force to cut off the floating threads and remaining threads continuously generated during the knitting process, and the waste at the mouth of the upper scissors is corrected by blowing air. Yarn and accumulated yarn are cleaned up. However, due to the complex structure of the upper scissors seat of the main part in the upper scissors mechanism, it is difficult to process, thereby making the structure of the whole set of upper scissors mechanism complicated, and the structure of the airflow channel for air intake and cleaning of waste yarn is complicated, resulting in a small air flow, which cannot Effectively and t...

AI Technical Summary

Problems solved by technology

However, due to the complex structure of the upper scissors seat of the main part in the upper scissors mechanism, it is difficult to process, thereby making the structure of the whole set of upper scissors mechanism complicated, and the structure of the airflow channel for air intake and cleaning of waste yarn is complicated, resulting in a small air flow, which cannot Effectively and timely clean up the waste yarn and accumulated yarn at the upper scissors, so that abnormal situations such as yarn blocking and continuous yarn cutting are prone to occur, which increases the frequency of machine failure

Due to its complex structure, the part processing cost increases and the installation time is prolonged

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