A tension control system applied to the wire take-up device of the micro wire drawing machine
A wire take-up device and tension control technology, which is applied in the field of tension control system of the wire take-up device, can solve problems such as inability to stop the wire in an emergency, large slip of the wire drawing machine, and excessive acceleration overshoot, etc., and achieve a solution to the tension of the wire take-up Unstable, simple configuration, and reduced disconnection rate
Active Publication Date: 2019-01-29
金华市大田线材有限公司
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Problems solved by technology
However, due to the large slip of the wire drawing machine controlled by a single frequency conversion, there are deficiencies in energy saving, further reduction of production unit costs, and staff operations. The reason is that the slip control tension itself is defective.
With the continuous improvement of the technical requirements and labor costs of the cable industry, the wire drawing machine system has higher and higher requirements for the tension of winding. Originally, it required manual assisted startup, excessive acceleration overshoot, and an inverter that could not stop the line in an emergency. The control winding system scheme has been increasingly unable to meet the requirements of modern technology
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[0012] In order to make the present invention be further understood, the present invention will be further described below with reference to accompanying drawing and specific embodiment of description:
[0013] Such as figure 1 and figure 2 As shown, a tension control system applied to the wire take-up device of the micro-wire drawing machine, including a stretching frequency converter connected with the stretching motor of the wire drawing machine, and a take-up motor connected with the wire take-up motor of the wire drawing machine line converter. The stretching inverter is connected to the take-up inverter through a control circuit, and the take-up inverter is connected with a tension sensor. Swing Potentiometer. The wire take-up frequency converter is connected with a wire speed potentiometer, and the wire speed potentiometer is used to detect the wire speed. The tension sensor is used to detect the tension signal of the output metal wire and feed it back to the wire ...
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The invention discloses a tension control system for a take-up device of a microwire drawing machine. The tension control system comprises a drawing frequency converter connected with a drawing motor of the microwire drawing machine, and a take-up frequency converter connected with a take-up motor of the microwire drawing machine. The drawing frequency converteris connected with the take-up frequency converter through a control circuit. The take-up frequency converter is connected with a tension sensor and also connected with a linear speed potentiometer. A tension signal of a metal wire is detected and output by the tension sensor and fed back and input into the take-up frequency converter. The feedback quantity and the current synchronous speed of the take-up motor are superposed after operational compensation is conducted on the feedback quantity through the take-up frequency converter, and the output frequency of the drawing frequency converter is adjusted, so that the rotating speed of the take-up motor is controlled to be synchronous relative to the wire outlet linear speed of the drawing motor, and accordingly the tension of wires is kept constant. According to the tension control system, by the adoption of double-variable-frequency control, the production efficiency is remarkably improved, the wire breakage rate is obviously decreased, the quality of finished products is remarkably improved, and meanwhile the electricity saving effect is quite remarkable.
Description
technical field [0001] The invention relates to the technical field of wire and cable processing, in particular to a tension control system for a wire take-up device of a fine wire drawing machine with double frequency conversion control, stable wire tension and low wire breakage rate. Background technique [0002] In the control system of the wire drawing machine, the tension control system is at the core. How to better control the tension of copper-clad aluminum products becomes the key to improving product quality and efficiency. At present, most of the existing wire drawing machine equipment adopts AC speed regulation, and the single frequency conversion method controls the drawing of the wire drawing machine. However, due to the large slip of the wire drawing machine controlled by single frequency conversion, there are deficiencies in energy saving, further reduction of production unit cost and staff operation. The reason is caused by the defect of slip control tension ...
Claims
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IPC IPC(8): B65H59/38
Inventor 郑宋友
Owner 金华市大田线材有限公司