Improved multi-speed electronic let-off system

Abstract

The invention discloses an improved multispeed electronic warp let-off system which comprises a warp knitting machine main body mechanism, an industrial personal computer, a servo control board and multiple servo drive mechanisms for controlling the beam rotation of the warp knitting machine, wherein the warp knitting machine main body mechanism comprises a primary shaft, an electronic gear, an auxiliary shaft, a primary shaft motor, a primary shaft encoder for detecting the operation state of the primary shaft motor and a primary shaft motor control circuit. In the invention, due to the electronic gear, when the servo control board performs motion control on the primary shaft, the auxiliary shaft is also driven to rotate in corresponding speed ratio under the effect of the electronic gear; and therefore, the transmission ratio between the primary shaft and the beam is constantly changed on the premise of keeping the warp run-in unchanged, the follow response performance of the servo control board on the speed change of the primary shaft is greatly improved, the warp let-off tension fluctuation in the start / stop process of the warp knitting machine is effectively reduced, the defects of warp knitting stop marks are improved, multiple patterns can be realized by warp knitting, and the performance of the warp knitting machine is improved.

Description

technical field [0001] The invention relates to the field of warp knitting machines, in particular to an improved multi-speed electronic let-off system. Background technique [0002] The warp let-off system is a system that unwinds the warp yarn from the warp beam and sends it into the loop forming mechanism according to a certain let-off amount. It is one of the most important components in knitting machinery (warp knitting machine, weft knitting machine), and directly affects the quality and pattern varieties of warp knitting products. [0003] For now, domestic warp knitting enterprises have a large number of imported warp knitting machines in the late 1990s, most of which use FAG mechanical let-off system, or the original single-speed EBA electronic let-off system cannot solve the problem of product diversification, and has already The aging failure rate is high, and upgrading is urgently needed. Therefore, there is an urgent need to independently develop a multi-speed...

AI Technical Summary

Problems solved by technology

[0005] The invention provides an improved multi-speed electronic warp let-off system, the main purpose of which is to overcome the shortcomings of existing warp let-off systems such as inaccurate control of the slave axis speed and prone to horizontal stripes

Images