Method for controlling electronic pattern sewing machine to carry out herringbone sewing

Abstract

The invention provides a method for controlling an electronic pattern sewing machine to carry out herringbone sewing. According to the method, firstly, a plurality of straight line sections, circular arcs, circles and free curves for forming patterns respectively generate herringbone sewing data; secondly, a herringbone sewing data file obtained through integration is stored into an electric control system of the electronic pattern sewing machine; and the pattern data file selected by the users is read out by the electric control system, and the pattern data is reversely analyzed for controlling an X-axis stepping motor and a Y-axis stepping motor to be matched with a main shaft servo motor for operation. The needle pitch of the generated pattern data is smooth, no particularly large or small needle pitches exist, the operation of the pattern sewing machine is stable, the noise and the vibration are greatly reduced, and the sewing effect is good. When the pattern file is read out, the increment in the XY axis direction can be obtained without carrying out complicated bit operation like the traditional pattern file, the pattern data is directly read out, and the movement vector of a pattern frame relative to a frame needle is indicated through pattern point relative coordinates.

Description

technical field [0001] The invention relates to a method for controlling an electronic pattern machine to perform herringbone sewing. Background technique [0002] The electronic pattern machine is an industrial sewing machine with three axes working together. The three axes are the main axis Z that controls the up and down reciprocating movement of the needle and the XY axis that controls the front, back, left, and right movements of the cloth frame in the horizontal plane. During the sewing process, the main shaft reciprocates in the vertical direction at a constant speed according to the set speed: the needle moves from the highest point to the entry point where the needle is about to penetrate the fabric, to the lowest point of the needle, and then to the exit point where the needle just leaves the fabric , and finally reach the highest point. The process of the needle from the cloth exit point to the highest point and then to the cloth entry point is the time period fo...

AI Technical Summary

Problems solved by technology

Encountering such data during high-speed sewing will cause the pattern machine to generate greater vibration, which will not only make the sewing effect unattractive or even distorted, but also affect the service life of the pattern machine

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