Structure of bidirectionally controlling lifting needle triangles

Abstract

The invention discloses a structure of bidirectionally controlling lifting needle triangles. The structure comprises two stepping motors on left and right sides, two side lifting needle triangles anda middle lifting needle triangle located between the two side lifting needle triangles. Additionally, the two side lifting needle triangles are respectively a left lifting needle triangle and a rightlifting needle triangle. An output shaft of each one stepping motor is connected with a lifting needle triangular cam with a groove. The structure is characterized in that three lifting needle triangles can be all in needle-detaching states when grooves of two lifting needle triangular cams between the position below each lifting needle triangular cam and a corresponding side lifting needle triangle are aligned at a signal disc; when a groove in a lifting needle triangular cam on a corresponding side departs from the signal disc, a needle-lifting and needle-detaching driving mechanism can enable the side lifting needle triangles on the same side with lifting needle triangular cams and the middle lifting needle triangle to be in the needle-lifting state. The structure can fulfill the function of individually, alternatingly and synchronously controlling the three lifting needle triangular in a split-type. Additionally, the overall structure is simple. Operation is performed conveniently.

Description

Technical field [0001] The invention relates to parts of a machine head in a flat knitting machine in a knitting machine, in particular to a structure for bidirectionally controlling a needle raising cam. Background technique [0002] At present, the side needle raising cam and the middle needle raising cam in the simple double-system flat knitting machine head (hereinafter referred to as the double-head) in knitting machinery mostly adopt a fixed one-way control structure, although the structure is simple and the cost is low, However, because the side and middle needle lifting triangles are always in the needle lifting state during work, it is easy to affect the wear and service life of the side and middle needle lifting triangles. At the same time, due to the lack of the side and middle needle lifting triangles The activity change function, therefore, has a certain impact on some of the weaving processes that are too demanding, so it needs to be improved. Summary of the invent...

AI Technical Summary

Problems solved by technology

[0002] At present, in the simple double-system flat knitting machine head (hereinafter referred to as the double machine head) in the knitting machine, most of the side lifting cams and the middle needle lifting cams adopt a fixed one-way control structure. Although the structure is simple and the cost is low, However, since the side lift cam and the middle needle lift cam are always in the needle lift state during work, it is easy to affect the wear and service life of the side lift cam and the middle needle lift cam. The function of activity changes, so it has a certain impact on some weaving processes that are too demanding, so it needs to be improved

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