Shedding device for jacquard

Abstract

The invention discloses a shedding device for a jacquard, and belongs to the technical field of textile machinery. The shedding device comprises a frame, a first swing arm shaft, a second swing arm shaft, first, second, third and fourth swing arm mechanisms with the same structure, and a swing arm shaft unilateral driving mechanism, wherein the frame is provided with left and right wall panels and a frame plate fixed with the left or right wall panel; the left end of each of the first and second swing arm shafts is rotatably supported on the left wall panel, while the right end is rotatably supported on the right wall panel; the second swing arm mechanism is connected to the left end of the first swing arm shaft; the fourth swing arm mechanism is connected to the right end of the first swing arm shaft; the first swing arm mechanism is connected to the left end of the second swing arm shaft; the third swing arm mechanism is connected to the right end of the second swing arm shaft; and the swing arm shaft unilateral driving mechanism is used for driving the first and second swing arm shafts to move, arranged on the left wall panel and the frame, and connected with the first and second swing arm shafts. The shedding device has the advantages that: the integral structure is simplified, and the movement stability and consistency are fully ensured.

Description

technical field [0001] The invention belongs to the technical field of textile machinery, and in particular relates to an opening device of a jacquard machine. Background technique [0002] The jacquard machine is widely used in the textile industry. Through the combination of multiple sets of mechanisms and a series of transmission relationships, the two sets of lifting knives are driven to move up and down alternately, and cooperate with the needle selection mechanism and heddle of the jacquard machine to control the opening of each warp thread. Jacquard fabrics with desired patterns can be woven on the loom. [0003] The shedding device of the jacquard machine in the prior art mainly has two structures: a single-side conjugate cam drive mechanism and a double-side multi-link mechanism. Among them, the shedding device with a single-side conjugate cam drive structure is recognized as more perfect. The opening device, the opening device around the structure of the conjugate...

AI Technical Summary

Problems solved by technology

However, due to the difficulty in the design and manufacture of conjugate cams, strict assembly requirements and high costs, the market expansion is restricted to a certain extent.

Compared with the above-mentioned conjugate cam structure, the opening device of the double-sided multi-link mechanism has a certain advantage in the market due to the relatively low difficulty in designing and manufacturing machine assembly. However, because this opening device requires Double-sided drive, so that the overall structure and transmission relationship are very complex and the stability and consistency of motion are difficult to guarantee, so it is necessary to improve it. The technical solution to be introduced below is produced under this background

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