Open mill closed-loop electric distance adjustment control and active safety protection device and method

Abstract

The invention relates to a closed-loop electric distance adjustment control and active safety protection device and method for an open mill, including three drivers equipped with motion control cards, wherein the first driver and the second driver are respectively connected with the first distance adjustment motor and the second The pitch-adjusting motor is connected, and the first pitch-adjusting motor and the second pitch-adjusting motor are respectively connected with the worm gear transmission mechanism of the pitch-adjusting roller; The distance roller and the fixed roller are connected with the gear transmission mechanism running. The present invention takes three motion control cards as the core to complete data reading, calculation, processing and control output, the data exchange between the motion control cards is realized through the industrial field bus, and the HMI man-machine interface device is realized through the Ethernet communication mode with the motion control card Data exchange, realize data exchange with the PLC controller of the mill through industrial field bus communication. The invention can greatly reduce the occurrence of overload faults, improve production efficiency and ensure the production process.

Description

technical field [0001] The invention belongs to the technical field of rubber manufacturing machinery control, and in particular relates to a mill closed-loop electric distance adjustment control and active safety protection device and method. Background technique [0002] At present, the distance adjustment control technology of the mill mainly adopts hydraulic distance adjustment control and ordinary AC motor open-loop distance adjustment control. The hydraulic distance adjustment control system realizes the control of the roll gap size of the distance adjustment roller of the open mill by controlling the proportional flow control valve. However, the cost of the hydraulic distance control and safety protection system is relatively high, and the supporting equipment takes up a relatively large space, and the oil pollution of the hydraulic distance control system affects the quality of the rubber. Ordinary AC motor open-loop distance adjustment control is to realize the ope...

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Problems solved by technology

However, the cost of the hydraulic distance control and safety protection system is relatively high, and the supporting equipment takes up a relatively large space, and the oil pollution of the hydraulic distance control system affects the quality of rubber

Ordinary AC motor open-loop distance adjustment control is to realize the open-loop control of the roll gap size of the distance adjustment roller of the open mill through the ordinary AC motor, but it cannot guarantee the stability of the roll gap when the load changes. The roll gap fluctuates greatly, which cannot guarantee the production process of the mill

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