Piezoelectric driving, harness-cord-free and returning-spring-free jacquard weave and needle selection mechanism

Abstract

The invention provides a piezoelectric driving, harness-cord-free and heddle-back-spring-free jacquard weave and needle selection mechanism and belongs to the technical field of design and manufacturing of the jacquard weave and needle selection mechanism. A piezoelectric driving wafer is arranged on a piezoelectric driving wafer mounting body; an external jacquard needle is arranged in a slide groove of a guide rail and the outer jacquard needle is internally provided with an internal jacquard needle; and the top of the internal jacquard needle is contacted with the piezoelectric driving wafer. According to the piezoelectric driving, harness-cord-free and heddle-back-spring-free jacquard weave and needle selection mechanism provided by the invention, the inner and outer jacquard needles are dynamically connected together through a pin on the internal jacquard needle and a pin hole on the external jacquard needle to form a compound heddle. The piezoelectric driving wafer is used as a driving element. The piezoelectric driving wafer is used as the driving element so that the piezoelectric driving, harness-cord-free and heddle-back-spring-free jacquard weave and needle selection mechanism has the advantages of high movement frequency and improvement of working efficiency. The more outstanding characteristic is that the structure of a machine body becomes compact and a lot of easily-damaged parts are saved so that an occupied space volume is greatly reduced; and meanwhile, the fault rate is greatly reduced. No heddle-back force exists so that the shedding power is greatly reduced and the power consumption is reduced.

Description

Technical field [0001] The invention belongs to the technical field of design and manufacture of a jacquard needle selection mechanism. Background technique [0002] At present, the needle selection mechanism used on the jacquard machine uses electromagnets as the driving element. The jacquard machine must be driven by a series of actions of upper and lower hook belts, pulleys, harnesses, healds, and return springs when working. The warp yarn moves to form an opening. The volume of the electromagnet itself is relatively large, and when the number of jacquard needles is large, the number of upper and lower hooks, pulleys, harnesses, heddles, and heald springs will increase, which makes the size of the jacquard machine even larger. , And they are all vulnerable parts, with high failure rate, troublesome maintenance and affecting production. In addition, the lifting mechanism has to overcome hundreds of kilograms of recovery force, so it consumes a lot of power. Summary of the in...

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Problems solved by technology

[0003] In view of the above-mentioned situation, the purpose of the present invention is to provide a jacquard needle selection mechanism with simple structure, small size and high working efficiency, so as to solve many problems existing in the existing mechanism.

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