Wire feeding speed regulation and control circuit and system

Abstract

The invention provides a wire feeding speed regulation and control system comprising a speed monitoring device, a PLC controller, a PC machine, a frequency converter and an alarm device, wherein the speed monitoring device is used for detecting wire feeding speed in real time, the PLC controller is used for determining whether difference between actual conveying speed obtained via the speed monitoring device and object wire feeding speed is in a permissible error range, the PLC controller then sends frequency control signals to the frequency converter, the frequency converter controls a driving motor to adjust speed, and the PLC controller sends alarms signals to the alarm device. The PC machine is connected with the PLC controller so as to record speed and technological parameters. The invention also provides a wire feeding speed regulation and control circuit which is connected with each electric appliance element, and therefore an alarming function, a monitoring function and a wire feeding speed control function of the above system can be fulfilled. The wire feeding speed regulation and control circuit and system disclosed in the invention provides the alarming function, the monitoring function and the wire feeding speed control function; rates of faults occurring during wire feeding processes can be finally lowered, and ingot casting quality can be improved.

Description

technical field [0001] The invention belongs to the technical field of alloy processing, in particular to a wire feeding speed control circuit and system. Background technique [0002] In the melting and casting production line, the wire feeder is the key equipment that affects the internal structure (especially the grain size) of the final product quality in aluminum alloy casting. It is the online addition of titanium, boron and rare earth and other easily oxidizable trace elements Sufficient grain refiner, one of the most effective measures to achieve grain refinement of ingot structure. In the process of alloy casting, it is necessary to use the wire feeder to accurately transport the grain refiner such as aluminum titanium boron wire to the bottom of the metal liquid flow tank at a reasonable speed to ensure that the grain refiner can be deposited on the metal Evenly dispersed at the bottom of the liquid. The addition of grain refiner can improve the quality of the al...

AI Technical Summary

Problems solved by technology

However, due to problems such as poor process reproducibility caused by the aging of the wire feeder drive, frequent failures such as non-feeding and jamming are prone to occur during the wire feeding process, human monitoring is not timely, and at the same time, it is prone to insufficient power, which makes the final product The content fluctuation of trace elements such as titanium or boron and the deviation of alloy composition are large, resulting in unstable grain refinement effect of cast structure, thus affecting the quality of final ingot

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