Yarn pressing device of flat knitting machine and working method of yarn pressing device

Abstract

The invention relates to a yarn pressing device of a flat knitting machine and a working method of the yarn pressing device. A sinker is installed in a sinker containing groove; the sinker comprises a sinker body, an elastic presser foot part, a power piece heel part and a yarn pressing part; three rotary positioning holes are formed in the sinker body; a through hole for limiting is formed in the yarn pressing part; three through grooves are formed in a sinker needle plate; a first positioning steel wire is installed in each through groove, and the three first positioning steel wires penetrate through three rotary positioning holes respectively; three intersection points generated by the axial leads of the three first positioning steel wires and the same cross section are not on the same straight line, a virtual circle is determined by the three intersection points, and the circle centers of all the virtual circles form a virtual axial lead; and the power piece heel part enables the sinker to rotate back and forth around the virtual axial lead under the action of power. According to the yarn pressing device, the use requirements on rollers, presser feet and other flat knitting machine mechanisms during knitting are reduced, the structural design optimization of an integrated garment making machine is facilitated, and the overall production cost is favorably controlled.

Description

technical field [0001] The invention relates to the technical field of computerized flat knitting machines, in particular to a yarn pressing device of a flat knitting machine and a working method thereof. Background technique [0002] Computerized flat knitting machines need to be filled with a large amount of yarn when weaving. In order to prevent yarn floating, yarn pressing devices are usually installed on the front and rear needle beds to press the yarn so that it does not float up. The sinker in the existing yarn pressing device is usually Threaded on a positioning steel wire, as shown in the patent application with publication number CN111005143A, under the power drive, the sinker rotates with the positioning steel wire as the rotating shaft, and the sinker with this structure still has the possibility of forming loops and floating pieces High shortcomings, so it is necessary to improve and optimize it. Contents of the invention [0003] The object of the present in...

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Problems solved by technology

[0002] Computerized flat knitting machines need to be filled with a large amount of yarn when weaving. In order to prevent yarn floating, yarn pressing devices are usually installed on the front and rear needle beds to press the yarn so that it does not float up. The sinker in the existing yarn pressing device is usually Threaded on a positioning steel wire, as shown in the patent application with publication number CN111005143A, under the power drive, the sinker rotates with the positioning steel wire as the rotating shaft, and the sinker with this structure still has the possibility of forming loops and floating pieces High shortcomings, so it is necessary to improve and optimize it

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