Heald lifting mechanism of jacquard

Abstract

The invention provides a heald lifting mechanism of a jacquard and belongs to the technical field of textile machinery. The heald lifting mechanism comprises a left outer swing arm disc, a right outer swing arm disc and a separation disc arranged between the left outer swing arm disc and the right outer swing arm disc, wherein the left outer swing arm disc is fixed with the left side of the separation disc, and a left outer swing arm is fixed on the left outer swing arm disc and located on the front side of the left outer swing arm disc in a state vertical to the left outer swing arm disc; the right outer swing arm disc is fixed with the right side of the separation disc, and a right outer swing arm is fixed on the right outer swing arm disc and located on the rear side of the right outer swing arm disc in a state vertical to the right outer swing arm disc. The integral swing arm disc in the prior art is divided into the left outer swing arm disc and the right outer swing arm disc and the left outer swing arm disc and the right outer swing arm disc are fixedly connected with the separation disc between the left outer swing arm disc and the right outer swing arm disc simultaneously, so that stress concentration is eliminated, and the heald lifting requirement of the jacquard used in a heavy load condition is met.

Description

technical field [0001] The invention belongs to the technical field of textile machinery, and in particular relates to a hedging mechanism of a jacquard machine. Background technique [0002] As known in the industry, electronic dobby machines and electronic jacquard machines are important components of loom shedding devices, even core components. Compared with the electronic dobby, the electronic jacquard machine has strong adaptability to the types of braids and can show obvious advantages in weaving complex high-grade fabrics, so it is more valued by people. The electronic jacquard machine is a mechanism that converts uniform rotational motion into up and down reciprocating motion. This motion is mainly driven by the cam mechanism or the eccentric disc crank mechanism to drive the concentric shaft or other biaxial mechanisms. The cam mechanism has the advantages of adapting to the width of the door. The concentric shaft has the advantages of compact structure, uniform fo...

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Problems solved by technology

[0004] The structure of the lifting mechanism in the prior art consists of figure 2 As shown, it includes an integral swing arm plate 10, on which two inner swing arm slots 101 are opened, and according to the structural requirements, the two inner swing arm slots 101 need to extend to more than symmetrical The center line is about 10mm, so the area between the head and tail corresponding positions of the two inner swing arm grooves 101 forms a stress concentration area 102, and the material of the integral swing arm plate 10 is mostly cast iron, so it can be used as a jacquard machine with a light load. Under normal circumstances, the integrated swing arm disc 10 of this structure can reflect the simple structure, low cost, and is still applicable because the stress concentration is relatively small, but in the case of a heavy-duty jacquard machine, it is easy to be in the stress concentration area 102. The bottom of the notch is cracked or even broken, which seriously affects the safe operation of the jacquard machine

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