Programming control system of pattern sewing machine based on PLC (Programmable Logic Controller)

Abstract

The invention discloses a programming control system of a pattern sewing machine based on a PLC (Programmable Logic Controller). The programming control system comprises a control box, a control box circuit board, PLC hardware, drivers for a main axis, an X axis and a Y axis, man-machine interface hardware, motors of the main axis, the X axis and the Y axis, a handpiece circuit board, a tangent line electromagnet, a line pulling electromagnet, a line loosening electromagnet, a medium-pressure electromagnet, an external-pressure electromagnet, an X-axis zero point switch, a Y-axis zero point switch, an emergency stop switch and a pedal switch, wherein the control box circuit board is arranged in the control box; the PLC hardware and the drivers for the main axis, the X axis and the Y axis are arranged in the control box and connected with the control box circuit board; the man-machine interface hardware is connected with the PLC hardware; the motors of the main axis, the X axis and theY axis are arranged on a sewing machine and correspondingly connected with the drivers for the main axis, the X axis and the Y axis; the handpiece circuit board is arranged on the sewing machine and connected with the control box circuit board; the tangent line electromagnet, the line pulling electromagnet, the line loosening electromagnet, the medium-pressure electromagnet and the external-pressure electromagnet are connected with the handpiece circuit board; the X axis zero point switch and the Y axis zero point switch are connected with the handpiece circuit board; the emergency stop switch is connected with the handpiece circuit board; and the pedal switch is connected with the PLC hardware. A system framework based on the PLC is innovatively used with an innovative concept, and a driving motor and the like are standard members, so that the system has high generality, reliability, usability and low price, is easy to purchase, and can be expanded and upgraded conveniently.

Description

technical field [0001] The invention belongs to an automatic control system, and relates to a PLC-based motion control system, in particular to a PLC-based pattern sewing machine programming control system. Background technique [0002] Pattern sewing machine is a type that is widely used in the production of clothing, shoes, hats and bags. The mechanical part is mainly divided into models based on the moving distance of the worktable. In addition to the mechanical part, this machine also includes programming and control systems. The programming part is provided by human Machine-machine interaction interface, input the pattern to be sewn into the controller by way of teaching, the control part provides man-machine interface such as operation and display, and can automatically complete the sewing process according to the input pattern. The traditional programming control system is divided into two types, the special system based on the single-chip microcomputer and the system...

AI Technical Summary

Problems solved by technology

The traditional programming control system is divided into two types, the special system based on the single-chip microcomputer and the system based on the general PC + motion control card. The system based on the single-chip microcomputer has been used for many years and is relatively mature. The system based on the PC is in the small In the verification stage of mass use, although the use of single-chip microcomputer-based systems is relatively mature, its biggest disadvantage is that the single-chip microcomputer-based system is a dedicated system, which cannot expand system functions or modify system functions conveniently. Developed and produced by a company, many domestic sewing machine manufacturers are subject to these manufacturers in terms of price and supply, and cannot expand and modify system functions, which limits the function upgrade of the machine

The PC-based system was developed by a domestic company, and its function can fully meet the needs of use, but its biggest shortcoming is the well-known instability of the PC system, especially in the complex electromagnetic environment of the industrial site and the environment of the factory building. the biggest problem

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