Control device for solenoid of weft knitting machine
The technology of a control device and a solenoid is applied in the direction of temperature control, textile and papermaking, knitting, etc. by electric means, which can solve the problems of reducing and reducing the weaving efficiency of the tripod carriage and the influence on the quality of knitted fabrics, so as to prevent overheating. Effect
Inactive Publication Date: 2010-11-10
SHIMA SEIKI MFG LTD
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Problems solved by technology
However, if the knitting speed is changed, the quality of the knitted fabric may be affected, and the knitting efficiency will be reduced by reducing the travel speed of the carriage.
Method used
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A controller for the solenoid of the flat knitting machine is designed to prevent the overheating of the solenoid without using the heat radiating member or a thermistor for each solenoid as follows. The operation frequency and a cumulative temperature change Tsi of the solenoid are input into a table (36) and the temperature change -Tsi and an operation pulse width PWi for preventing the overheating of the solenoid are read from the table. The temperature change -Tsi is added to the cumulative temperature change Tsi for renewal. The solenoid is driven with the read pulse width PWi. Thereby, the overheating of the solenoid can be prevented.
Description
Solenoid control device for flat knitting machine technical field The present invention relates to the prevention of overheating of a solenoid of a flat knitting machine. Background technique In flat knitting machines, solenoids are used for the control of yarn guides, the cam system for operating knitting needles, the cam system for operating knitting needles, the control of selector jacks for needle selection, and solenoid valves for air intake and exhaust devices. The yarn guide can slide freely along the yarn guide rail, for example, a pair of left and right protrusions are arranged on the upper part of the yarn guide. The conversion console is arranged on the upper part of the carriage of the flat knitting machine, and the solenoid is arranged downward for each yarn guide rail and for the cam system of each carriage. When the pin (plunger) of the solenoid moves forward, it engages with the protrusion of the yarn guide to make the yarn guide interlock. And when the p...
Claims
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IPC IPC(8): D04B35/30G05D23/19
Inventor 狗卷正纪
Owner SHIMA SEIKI MFG LTD