Program Design of Mechatronics Intelligent Knitting Machine Based on CAD Data Structure

Abstract

In order to improve the automation level of 3D knitting machine, the author proposes a control system of mechatronics intelligent knitting machine based on CAD data structure. The control system adopts the AS-49PC-4 motion control card to design the "PC + motion control card" control scheme, and introduces the connection between the AS-49PC-4 motion control card and the driver and the stepping motor, and the specific realization of the control motor. Experimental results show that the motion control card performs the best linear interpolation at the pulse rate of 0.0023×10-6. The smooth acceleration generated by the high-speed resolution and the 2-level stop by the deceleration setting function to control the vibration measures to prevent vibration, it meets the control requirements for the motor-driven air valve to move to the position of the machine tool, reduces the positioning error, and ensures the positioning accuracy. In the weave test, when the theoretical braiding angle is 60°, 45° and 30° respectively, the maximum error is less than 1°, and the maximum error of coverage is about 1.3%. The braiding parameter control is accurate and effective. Using this scheme, the development cycle of the system can be shortened, the interpolation accuracy can be improved, and the knitting error rate can be reduced.