Harness wire-free jacquard head

Abstract

The invention discloses a harness wire-free jacquard head, belongs to parts for textile machinery, and in particular to the technical field of design and manufacture of the harness wire-free jacquard head. A driving motor is arranged on the front part of a body frame; hook piece slideway linkage mechanisms are arranged on two sides of the body frame; an upper piezoelectric ceramic piece is arranged on a hook piece middle slideway; a lower piezoelectric ceramic piece is arranged on a hook piece lower slideway; during weaving, a toothed belt is driven through the driving motor to rotate an eccentric block, so that a hook piece middle slideway moving frame is driven to reciprocate up and down in a reciprocating way between a hook piece upper slideway fixing frame and a hook piece lower slideway fixing frame, the retention time sequence of the upper and lower positions of the hook piece is controlled by utilizing the deformation of the piezoelectric ceramic piece, and the retention time sequence of the upper and lower positions of the electromagnet-controlled warp yarns is replaced. The piezoelectric ceramic piece is small in size, low in power consumption, stable and reliable, the performance is far superior to that of the electromagnet, the stability of the machine is improved, and the harness wire-free jacquard head is energy-saving and environment-friendly. The harness wire-free jacquard head is mounted on the lowest part of a textile machine, so that the harness wire-free jacquard head is convenient to mount and maintain and does not occupy large space; and moreover, the problems in the conventional products are solved.

Description

technical field [0001] The invention belongs to parts for textile machinery, in particular to the technical field of design and manufacture of a jacquard faucet without heddles. Background technique [0002] At present, jacquard faucets used in textile machinery mostly use electromagnet-assisted mechanical transmission to indirectly control the movement of warp threads to achieve warp opening, and the faucet is installed on the top of the machine. When working, the heald lifting pull-down spring always keeps the heald in a downward pulling force. The four-link eccentric block pushes the lifting knife to reciprocate up and down, and the lifting knife drives the hook piece to reciprocate up and down. When the lifting knife moves to the uppermost position, keep the hook piece In the upper position, the electromagnet is not energized, and the hook plate is hooked in the upper position by its own elastic deformation, and the hook plate drives the warp thread passing through the h...

AI Technical Summary

Problems solved by technology

This traditional structure uses a heddle electromagnet to assist the mechanical transmission. The structure is complex and inconvenient to install. The mechanical impact is large, the noise is large, and the energy consumption is not environmentally friendly. Due to the limitation of the mechanical structure, the large volume can only be used as a faucet with a small number of needles of 2000-3000 needles.

In addition, due to the complex structure and many linkage links, it makes a lot of noise during work, which affects the health of the operator and increases the difficulty of operation.

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