Numerical control method for cam synchronous transmission jacquard loom

Abstract

The invention relates to a numerical control method for a cam synchronous transmission jacquard loom. The jacquard loom comprises a main shaft original point signal cam, a main shaft approach switch, a synchronous pulse generator, a control electricity box, a jacquard machine signal cam, a jacquard machine approach switch, a numerical control motor and a speed reducing mechanism, the main shaft original point signal cam is arranged on a jacquard loom main machine main shaft, when an opening of a jacquard machine is maximum, the jacquard machine signal cam starts to switch on the jacquard machine approach switch, after the main shaft approach switch starts to be switched on or the set number of pulses is delayed, the control electricity box controls the numerical control motor to drive the jacquard machine to synchronously operate at a rotating speed which is higher than that of the jacquard loom main machine main shaft from a position where the jacquard machine approach switch starts to be switched on, when the jacquard machine approach switch starts to be switched on next time, the jacquard machine turns to be static to wait for switching on of the jacquard loom main machine main shaft approach switch next time, and the operations are repeated so as to achieve the fact that relative rest time exists each time the jacquard machine operates to a position with the maximum opening. Accordingly, warp opening maintaining time can be effectively guaranteed, the maintaining time is adjustable, and time requirements for the loom to wait for wefting insertion can be met.

Description

technical field [0001] The invention relates to a numerical control method for a cam synchronous drive jacquard loom. Background technique [0002] The jacquard loom is the part that controls the movement of the warp on the jacquard loom, and the jacquard loom includes a jacquard host and a jacquard machine. [0003] The traditional jacquard loom uses a chain or a main shaft to drive the input shaft of the jacquard machine to drive the rotary wheel after deceleration, so that the jacquard machine linkage drives the girder to control the opening of the warp. There is no holding time at full shed, which cannot meet the time requirement for weft insertion during weaving, causing side yarn breakage and weft yarn breakage, thus affecting weaving quality and efficiency. Contents of the invention [0004] In order to overcome the deficiencies in the prior art, the present invention provides a cam synchronous drive jacquard loom numerical control method that can effectively ensur...

AI Technical Summary

Problems solved by technology

[0003] The traditional jacquard loom uses a chain or main shaft to drive the input shaft of the jacquard machine to drive the rotating wheel after deceleration, so that the jacquard linkage rod drives the lifting knife to control the opening of the warp. There is no holding time at full shed, which cannot meet the time requirement of weft insertion during weaving, causing side yarn breakage and weft yarn breakage, thus affecting weaving quality and efficiency

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