Analysis of the working principle of straight wire drawing machine

How to develop and apply the straight-line wire drawing machine and its working principle, how to do the work of the straight-line wire drawing machine well? The technical level of the straight-line wire drawing machine products needs to be improved.

The straight-in wire drawing machine is a high-speed, high-efficiency, non-bending, non-twisting, strong cooling, cost-effective non-sliding continuous wire drawing machine, which has long been widely used in developed countries or regions such as Europe and the United States. Due to various reasons, the current dry drawing equipment in the domestic metal products industry is still dominated by pulley wire drawing machines, and its product performance is far behind that of straight-in wire drawing machines. Although the straight-in wire drawing machine has advantages over the pulley wire drawing machine in production efficiency, production cost, product quality, etc., its expensive one-time investment has deterred many domestic metal products companies. To reduce the one-time investment and break through the constraints of repair and maintenance, it is necessary to develop independently and take the path of localization. This article introduces the straight-in wire drawing machine developed on the basis of absorbing foreign advanced experience, integrating its own actual use, and relying on the machine construction ability and automatic programming strength of domestic military enterprises.

Its working principle is:

According to the speed set by the operator on the panel, the analog signal of the speed enters the PLC, and the PLC outputs the analog signal according to a certain slope after considering the acceleration and deceleration time. The purpose of this is mainly to meet the needs of some operations such as jog and threading. The analog voltage signal output by the PLC is simultaneously connected to the AI2 (AI1 can also be) input terminal of all frequency converters as the main given signal of the speed. The signal of each swing arm displacement sensor is connected to the corresponding drum drive frequency converter as the feedback signal of PID control. According to the position of the swing arm in the middle, set a PID given value by yourself. This system is a very typical PID control system with feedforward, one level in series, and PID as the fine-tuning amount.