Method for obtaining sewing path of cut pieces

Abstract

The invention discloses a method for obtaining a sewing path of cut pieces and belongs to the field of control of industrial sewing machines. The method comprises the following steps: taking photos for the cut pieces so as to obtain cut-piece images; carrying out edge extraction on the obtained cut-piece images, thereby obtaining edges of the cut pieces; judging the obtained edges so as to obtain sewable cut pieces with the edges positioned in an ideal range; carrying out breakpoint filling treatment and multi-edge simplification treatment on the edges of the sewable cut pieces obtained by the step S103 so as to obtain single and continuous edges; carrying out retraction or expansion on the edges obtained by the step S104 so as to construct the sewing path; carrying out coordinatization on pixel points of the sewing path obtained by the step S105 so as to obtain a coordinate graph of the pixel points of the sewing path; and generating the sewing path according to the coordinate graph obtained by the step S106. The method disclosed by the invention has the advantages that the sewing path can be efficiently generated, so that the plate manufacturing procedure is replaced and the quality and efficiency of sewn products in industrial production are improved.

Description

technical field [0001] The invention belongs to the field of automatic control of industrial sewing machines, and more specifically relates to a new method for picking up the edge of the cut material before the sewing process of the cut pieces to provide a reasonable path for the intelligent sewing of the cut pieces by the sewing machine. Background technique [0002] At present, the industrial sewing machines on the market are basically composed of the industrial sewing machine body and the industrial sewing machine CNC system. When sewing different pieces, the staff will make a large number of templates through CAD software in advance according to the different sewing paths of different sizes, and through The CAM software is designed to generate the corresponding path stitching program. When sewing, the operator puts the cut piece on a template with a fixed sewing path, calls the corresponding path sewing program in the numerical control system through template positioning...

AI Technical Summary

Problems solved by technology

However, (1) In the process of making clothes and shoes, the factory has to spend a lot of time and money in the early CAD template making and CAM process preparation due to the characteristics of the same style of clothes and shoes, such as various sizes, flexible fabrics, and unstable pre-cutting. Above, different files need to be edited for pieces of different sizes; (2) When there is a deviation in the shape or size of the fabric during the cutting process, the original file needs to be modified, otherwise the stitching quality cannot be guaranteed, and it is difficult to obtain better efficiency and quality. Improve to a great extent; (3) in order to obtain reliable suture stitches, need excellent template, accurate template positioning device and template recognition device on device, so it is not easy to reduce the cost of mechanical equipment and template; (4) in manpower Resources Need experienced designers to design templates and seam stitch programs

The connection of so many links above makes it difficult to improve the quality and efficiency of stitched products in large-scale industrial production

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