Needle bed jacquard mechanism on knitting circular weft machine

Abstract

The invention discloses a needle bed jacquard mechanism on a knitting circular weft machine, and relates to the field of knitting circular weft machine mechanical structures, in particular to the needle bed jacquard mechanism on the knitting circular weft machine. The needle bed jacquard mechanism comprises a dial, a knitting needle, a jacquard piece, a cam unit, a needle selection device and a reset cam. The tail end of the knitting needle is not connected with the head end of the jacquard piece. A lower presser foot, jacquard teeth and a needle jack foot are sequentially arranged on the jacquard piece at intervals. The cam unit comprises a knitting cam arranged corresponding to the knitting needle, a needle pressing cam arranged corresponding to the lower presser foot of the jacquard piece and an elevating cam arranged corresponding to the needle jack foot of the jacquard piece. The needle pressing cam and the elevating cam are respectively provided with a waveform side face, so that the waveform side face of the needle pressing cam and the waveform side face of the elevating cam can make contact with the lower presser foot and the needle jack foot in a motion mode to form the motion guidance trajectory of the jacquard piece. By means of the jacquard mechanism, the resistance generated in the jacquard action of the knitting needle and the jacquard piece is reduced, and service life of machine parts is prolonged.

Description

technical field [0001] The invention relates to the field of mechanical structure of a circular knitting machine, in particular to a needle bed jacquard mechanism on a circular knitting machine. Background technique [0002] The double-sided knitting circular weft machine includes an upper needle bed, and the upper needle bed is provided with a jacquard mechanism for jacquard one side of the knitted fabric. Jacquard Mechanism Development So far, the action of the jacquard mechanism is to push the knitting needles by the jacquard sheet to complete the whole knitting process. It is also necessary to push the jacquard sheet to the starting position of the jacquard sheet. It is this process that adds resistance to the knitting needle and the jacquard sheet and concentrates the wear points. This not only makes the wear points of the two components too concentrated, but also causes the jacquard sheet and The service life of knitting needles is reduced and the load on the loom is ...

AI Technical Summary

Problems solved by technology

The head end of the jacquard piece in this patent application is fastened with the knitting needle, and the two are pulled together, and the jacquard piece is embedded in the needle groove in an arc shape, and creates tension with the groove wall of the needle groove, thus increasing the resistance. As the resistance increases, wear and tear will naturally increase, and the service life of knitting needles and jacquard pieces will also decrease, and the wear rate will be high. After a period of use, the above-mentioned defects may appear. The dynamic load of the circular knitting machine is also increased, and the driving power will naturally increase as the load increases.

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