Alternating current servomotor control circuit for electronic planet selvage device

Abstract

The invention relates to an alternating current servomotor control circuit for an electronic planet selvage device. In the prior art, a motor difficultly rotates at a high speed in the control process. The control circuit comprises a master control chip STC89C58RD+, a key input circuit, a nixie tube status display circuit, an external release button and sensor signal input circuit, a selvage control status indicator lamp and alarm output circuit, a spindle encoder signal receiving circuit and a system power circuit, wherein the master control chip directly acquires spindle encoder signals through the spindle encoder signal receiving circuit; the external release button and sensor signal input circuit adopts optical coupling isolation; and alternating current input into the system power circuit is subjected to bridge rectification and is subjected to voltage stabilization by a three-terminal voltage stabilizing module and a switch integration voltage stabilizing module. The circuit hasa simple structure, man-machine communication is convenient, the electronic planet selvage device is operated and controlled flexibly, and the electronic planet selvage device is accurately synchronous with a spindle when the spindle rotates at a high speed.

Description

Technical field

[0001] The invention belongs to the technical field of motor control, in particular to the technical field of motor control of textile machinery, and relates to an AC servo motor control circuit of an electronic planetary selvedge device on an air jet loom. Background technique

[0002] At present, the main application of the known air jet selvedge device is mechanical. Because the mechanical rotating chain of the mechanical selvedge device is too long, the cumulative error of installation and processing accuracy is large, and the failure rate of use in high-speed looms is high, which affects the operating rate of the loom; due to structural reasons, the width of the selvedge device Width adjustment and adjustment of heald leveling parameters are cumbersome; the drive gear engaged with the selvedge device is an open structure, which is not conducive to lubrication and affects the high speed of the system, and it is easy to enter debris and cause damage to parts; t...

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