The intelligent control high-precision positioning system is a new technology for paper cutting machine products, which can achieve the upgrading and transformation of the control system of the paper cutting machine. Focusing on the theme of intelligence, with the goal of improving cutting accuracy and efficiency, it has studied and analyzed technologies such as automatic elimination of screw gaps, error compensation, high-speed and low-speed positioning, and fault diagnosis. The aim is to help paper cutting machine manufacturers solve the problem of accurate positioning of paper cutting machines, Improving cutting accuracy and work efficiency, achieving automation, intelligence, and informatization of cutting equipment, has great application value. The following are the characteristics and applications of the intelligent control high-precision positioning system for paper cutting machines organized by the editor:

Programmable double worm gear paper cutting machine

1. High speed operation and low speed positioning function: In order to synchronously improve the cutting efficiency and accuracy of the paper cutting machine, the intelligent positioning system adopts two operating speeds of different frequencies to achieve the high-speed operation and low speed positioning function of the paper feeder. The paper feeder runs at high speed when it is>30mm from the set position during operation, and at low speed when it is ≤ 30mm from the set position for precise positioning. High speed operation saves running time, improves cutting efficiency, ensures low speed positioning, and ensures cutting accuracy.

2. Soft limit function: The limit position of the paper feeder is limited by its travel. The intelligent positioning system adopts a soft limit method, which detects the position of the paper feeder through software. When the position of the paper feeder is detected to be 30mm away from the limit position, the program controls the paper feeder to run at low speed until the limit position stops.

3. Fault diagnosis function: The intelligent positioning system software has added a fault diagnosis function. When there is a fault in the encoder, frequency converter, limit switch, high point switch of the paper press, high point switch of the cutting bed, etc., there will be prompt information and error code display, so as to determine the cause of the machine's fault.

4. Automatic elimination of screw clearance function: The paper cutter motor drives the screw and screw nut screw pair to operate, causing the paper feeder to move forward and backward in a straight line. After the paper cutting machine operates for a period of time, there will be a gap between the screw and the screw nut due to wear. When the gap increases to a certain extent, it will affect the cutting positioning accuracy of the paper cutting machine, and corresponding technical measures need to be taken to eliminate this gap. When the paper feeder runs from back to front, the gap between the screw and the screw nut is located at the back of the paper feeder, which does not affect the accurate positioning of the paper feeder; When the paper feeder runs from front to back, the gap between the screw and the screw nut is located on the front side of the paper feeder. This gap is calculated as the size of the position of the paper feeder, causing an error between the displayed data and the actual position. To solve this problem, software is used to control the program to run the paper feeder from front to back to the set value+30mm position, and then reverse it to stop at the set value position, The gap between the screw and the screw nut is converted from the front side of the paper feeder to the rear side, eliminating the influence of the gap on positioning and ensuring high cutting accuracy.

5. Error compensation function: Due to mechanical assembly reasons of the paper cutting machine, such as inadequate lubrication, tight conveyor belts, and other human factors, the paper feeder may experience a deviation between the current position size and the actual size during operation, resulting in positioning error problems. In response to this issue, the software part of the intelligent positioning system has been added