Online automatic deviation rectification cutting system based on optical flow camera and PID control

Abstract

The invention discloses an online automatic deviation rectification cutting system based on an optical flow camera and PID control. According to the cutting system, online automatic deviation rectification can be performed on non-transparent cutting materials. The problem that the cutting materials deviate and consequentially, the cutting quality declines is solved. The cutting system mainly comprises an optical imaging module, a control module and an execution module. According to the online automatic deviation rectification cutting system, the real-time pixel offset is obtained through the optical imaging module and sent to the control module, a calibration principle and a PID control principle are applied to the pixel offset through the control module, the real-time control amount is calculated and then input into a driver so as to drive a motor to drive a tool blade to perform position compensating, and accordingly, the purpose of online automatic deviation rectification is achieved. By means of the online automatic deviation rectification cutting system, the problems that an existing online automatic deviation rectification cutting system is complex in structure in practical deviation rectification application, the requirement for imaging quality is high, and the calculation amount is large are solved, the system is applicable to high-speed cutting environments, and the deviation rectification precision is improved on the basis that the cost and the calculation amount reduction are taken into consideration.

Description

technical field [0001] The invention belongs to the field of visual servo control, and more specifically relates to an online automatic deviation correction and cutting system using an optical flow camera and PID control. Background technique [0002] In industrial production, the slitting machine is mainly used to slit and rewind cutting materials such as wide paper, mica tape or laser film, and is an important equipment for the post-press process. However, in the process of material conveying, the speed and tension of material feeding will change with the continuous reduction of the diameter of the material roll. In addition, factors such as non-parallel between the rollers and unevenness when the cut material is wound on the roll, etc. It will cause the cutting material to deviate, which will affect the cutting quality of the cutting material. [0003] Traditional slitting machines usually use a photoelectric head to track the edge of the material or a printed color mark...

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the technology of the present invention is: to overcome the deficiencies of the prior art, and without significantly increasing the system cost and complexity, an online automatic deviation correction and cutting system based on optical flow camera and PID control is proposed, which solves the problems caused by The deviation of the cutting material leads to the problem of the decline of the cutting quality

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