The principle of straight wire drawing machine.

The use of variable frequency speed regulation in the control of direct wire drawing machines has the characteristics of simple configuration, clear logic, and reduced cost.
Keywords Direct drawing machine synchronous frequency conversion control
1 Introduction
Metal products are an important part of the metallurgical industry, but in our country, the industry is a weak link, mechanical and electrical equipment is obsolete, hindering the development of the industry. In metal processing, a direct drawing machine is common, in the past a DC generator-motor unit (F-D system) was achieved, but with the progress of process technology and the popularity of frequency converters, frequency conversion control began to be widely used in direct drawing machine, And PLC can be used to achieve the drawing variety setting, operation automation, production process control, real-time closed-loop control, automatic meter counting, and other functions.