First of all, we must understand the basic knowledge of the opening line, the opening line is the abbreviation of the unwinding, leveling, cutting, palletizing production line, its main task is to straighten and flatten the steel plate into a roll and then cut into different lengths according to the needs of the product, the code is stacked after loading and shipping.

At present, most of the Kaiping line adopts automatic control, and the control devices used are as follows:

[1] Programmable controller PLC, PLC anti-interference ability is strong, stable and reliable work, there are many open lines using PLC control.

[2] Industrial control machine, it is commonly seen in large open line flying shear control.

[3] The open line of the counter is usually simple shear positioning, which is difficult to achieve some special requirements put forward by users. Analysis of Kaiping line production process control process, the ordinary 8-bit single-chip microcomputer can be competent, mainly to solve the two problems of anti-interference and positioning accuracy.

[4] Single-chip microcomputer, which is especially suitable for industrial control microcontrollers, is widely used in many fields such as automobiles, machine tools, and home appliances. Practice has proved that as long as the SCM application system solves the anti-interference problem, compared with industrial control machines and PLC, it has many advantages such as low cost, flexible output form, and common faults can be handled by users themselves.

[5] On the open line, the length of the workpiece is measured by accumulating the number of pulses output by the pulse encoder. Due to mechanical inertia and other factors, the encoder will be reversed for a short time during the starting and braking process, so the counting circuit should be reversible. If the plate running speed is very high, hardware counting can be used, and in general, software counting can be used.