CN-122013455-A - Method for determining locus of pattern sewing

CN122013455ACN 122013455 ACN122013455 ACN 122013455ACN-122013455-A

Abstract

The invention discloses a track determining method of pattern sewing, which comprises the steps of determining the coordinates of an initial starting point and a first starting point of an arc seam under a preset coordinate system according to the radius of the arc seam and the radius of an inner ring of the arc seam, determining the needle count of the arc seam and the needle falling coordinates of each needle according to the preset needle pitch and the first starting point, determining the coordinates of a second starting point of the arc seam under the preset coordinate system according to the radius of an outer ring of the arc seam, and determining the needle falling coordinates of the arc seam according to the preset total needle count, the needle count of the arc seam, the number of turns of the arc seam, the second starting point, the inner ring radius of the arc seam and the outer ring radius. The pattern generation efficiency is improved, the pattern repeatability and the sewing quality are improved, the complicated parameter adjustment and manual intervention in the traditional method are reduced, and the technical requirements on operators are reduced. Meanwhile, the shape of the pattern can be adjusted, and the flexibility of the pattern is obviously improved.

Inventors

JIANG FANGFANG
LU XIAOQI
XU YAXIONG

Assignees

浙江众邦机电科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (10)

1. The pattern sewing track determining method is characterized in that the pattern is sewn by adopting arc seams and zigzag seams, and comprises the following steps: Determining coordinates of an initial starting point and a first starting point of the circular arc seam under a preset coordinate system according to the radius of the circular arc seam and the radius of an inner ring of the zigzag seam, wherein the radius of the inner ring of the zigzag seam is the distance between the vertex of the zigzag seam closest to the origin of the preset coordinate system and the origin of the preset coordinate system; determining the needle number of the circular arc seam and the needle falling coordinate of each needle according to the preset needle distance and the first joint point; Determining the coordinates of a second starting point of the curved crease under the preset coordinate system according to the outer circle radius of the curved crease, wherein the outer circle radius of the curved crease is the distance between the vertex farthest from the curved crease to the origin of the preset coordinate system and the origin of the preset coordinate system; And determining needle falling coordinates of the curved crease according to a preset total needle number, the needle number of the circular crease, the number of turns of the curved crease, the second starting point, the inner circle radius and the outer circle radius of the curved crease.
2. The method according to claim 1, wherein the circular arc seam includes at least one circle of first circular arc seam, the first circle of first circular arc seam includes an initial reinforcing seam and a first regular seam, and determining the number of needles of the circular arc seam and the needle falling coordinates of each needle according to a preset needle pitch and the first joint point includes: Determining the number of the initial reinforcement seam and the needle falling coordinate of each needle in the first circle of the first circular arc seam according to the initial reinforcement preset arc length, the initial reinforcement preset needle distance and the first joint point; And determining the needle number of the first conventional stitch and the needle falling coordinate of each needle in the first circle of the first circular arc stitch according to the first conventional preset needle pitch and the needle falling coordinate of the stitch reinforcement.
3. The method according to claim 2, wherein determining the number of needles of the initial reinforcing stitch and the needle drop coordinates of each needle in the first circle of the first circular arc stitch based on the initial reinforcing preset arc length, the initial reinforcing preset stitch length, and the first stitch point comprises: determining the needle number of the initial reinforcement seam according to the ratio of the initial reinforcement preset arc length to the initial reinforcement preset needle pitch; Determining a central angle corresponding to the initial reinforcement preset stitch length according to the initial reinforcement preset stitch length and the radius of the first circular arc seam; and determining the needle falling coordinate of each needle in the initial reinforcing seam according to the central angle of each needle in the initial reinforcing seam relative to the origin of the preset coordinate system and the origin coordinate of the preset coordinate system.
4. The method according to claim 2, wherein the circular arc seam comprises at least two circles of the first circular arc seam, and further comprising, after determining the number of needles of the regular seam and the needle fall coordinates of each needle in the first circle of the first circular arc seam according to the first regular preset needle pitch and the needle fall coordinates of the initial reinforcing seam: And determining the needle number of the first circular arc seam from the second circle to the last circle and the needle falling coordinate of each needle according to the first conventional preset needle distance, the radius of the first circular arc seam and the first joint point.
5. The method of determining the trace of pattern stitching according to claim 2, wherein said arcuate slits further comprise at least one second arcuate slit, and wherein after determining the number of stitches of a first conventional slit and the needle drop coordinates of each stitch in a first one of said first arcuate slits based on a first conventional preset stitch length and the needle drop coordinates of said lift reinforcement, further comprising: Determining a third starting point of the second circular arc seam according to the radius of the second circular arc seam; And determining the needle number of at least one circle of the second circular arc seam and the needle falling coordinate of each needle according to a second conventional preset needle distance, the radius of the second circular arc seam and the third starting point.
6. The method of determining a trace of pattern sewing according to any one of claims 1 to 5, wherein determining needle falling coordinates of the curved crease based on a preset total number of needles, a number of needles of the circular crease, a number of turns of the curved crease, inner circle radii and outer circle radii of the second starting point and the curved crease, comprises: Determining the end point number of the curved crease according to the preset total needle number, the needle number of the circular crease, the transition needle number and the circle number of the curved crease, wherein the transition needle number comprises the transition needle number from the initial starting point to the first starting point, the transition needle numbers among starting points of different circular crease, the transition needle number of the circular crease to the curved crease and the transition needle numbers among starting points of different circles of the curved crease; And determining needle falling coordinates of the curved crease according to the number of the end points of the curved crease, the second starting point, the radius of the inner ring of the curved crease and the radius of the outer ring of the curved crease.
7. The method of determining a trace of a pattern stitch as recited in claim 6, wherein said zigzag stitch includes two turns, and further comprising, after determining needle-down coordinates of said zigzag stitch based on a number of end points of said zigzag stitch, an inner circle radius and an outer circle radius of said second starting point and said zigzag stitch: determining a fourth starting point of the second winding of the zigzag seam according to the radius of the inner ring of the zigzag seam; And determining needle falling coordinates of the curved crease according to the number of the end points of the curved crease, the fourth starting point, the inner circle radius and the outer circle radius of the curved crease.
8. The method of determining a trace of pattern stitching according to claim 7, further comprising ending a reinforcement stitch, and after determining needle-down coordinates of said curved stitch based on the number of ends of said curved stitch, the second start point, and the inner and outer radii of said curved stitch, further comprising: determining the needle distance of the zigzag seam according to the needle falling coordinates of the first needle and the needle falling coordinates of the second needle of the last circle of zigzag seam; and determining the needle number of the final reinforcing seam and the needle falling coordinate of each needle according to the final reinforcing preset arc length, the final reinforcing preset needle distance and the needle distance of the bending seam.
9. The method of determining the locus of pattern sewing according to claim 8, wherein determining the number of end points of the zigzag stitch based on a preset total number of stitches, the number of stitches of the circular arc stitch, the number of transition stitches, and the number of turns of the zigzag stitch, comprises: And determining the number of the ends of the curved crease according to the preset total needle number, the needle number of the circular arc crease, the transition needle number, the needle number of the end reinforcing crease and the number of turns of the curved crease.
10. The method of determining a locus of pattern sewing according to claim 1, wherein determining coordinates of an initial stitch point and a first stitch point of the circular arc seam in a preset coordinate system based on a radius of the circular arc seam and an inner circle radius of the zigzag seam, comprises: When the difference value between the radius of the circular arc seam and the radius of the inner ring of the zigzag seam is smaller than a first preset value, determining that the abscissa of the initial starting seam point and the first starting seam point under the preset coordinate system is the sum of the original abscissa, the radius of the inner ring of the zigzag seam and a first reference value, and the ordinate of the initial starting seam point under the preset coordinate system is the original ordinate, wherein the ratio of the first reference value to the difference value between the radius of the circular arc seam and the radius of the inner ring of the zigzag seam is 1/n, and n is an integer larger than 1; When the difference value between the radius of the circular arc seam and the radius of the inner ring of the zigzag seam is larger than the first preset value, determining that the abscissa of the initial starting seam point under the preset coordinate system is the sum of the original abscissa, the radius of the inner ring of the zigzag seam and the second reference value, and the ordinate of the initial starting seam point under the preset coordinate system is the original ordinate, wherein the ratio of the second reference value to the difference value between the radius of the circular arc seam and the radius of the inner ring of the zigzag seam is 1/m, and m is an integer larger than n; When the difference between the radius of the circular arc seam and the radius of the inner ring of the zigzag seam is larger than the first preset value and smaller than or equal to the second preset value, determining that the abscissa of the first joint point under the preset coordinate system is the sum of the original abscissa and the radius of the inner ring of the zigzag seam and a third reference value, and the ordinate of the first joint point under the preset coordinate system is the original ordinate, wherein the ratio of the third reference value to the difference between the radius of the first circular arc seam and the radius of the inner ring of the zigzag seam is (n+1)/m, and the ratio of (n+1)/m is smaller than 1; When the difference between the radius of the circular arc seam and the radius of the inner ring of the zigzag seam is larger than the second preset value, determining that the abscissa of the first joint point under the preset coordinate system is the sum of the original abscissa, the radius of the inner ring of the zigzag seam and a fourth reference value, and the ordinate of the first joint point under the preset coordinate system is the original ordinate, wherein the ratio of the fourth reference value to the difference between the radius of the circular arc seam and the radius of the inner ring of the zigzag seam is m/p, and p is an integer larger than m.

Description

Method for determining locus of pattern sewing Technical Field The embodiment of the invention relates to the technical field of sewing, in particular to a pattern sewing track determining method. Background In the field of sewing machines, design and creation of patterns are important links in the sewing process. The design of the traditional patterns is usually manually adjusted or selected through a preset template, and the method is not only low in efficiency, but also difficult to meet the personalized requirements of the complex patterns. Particularly in the generation of complicated patterns such as chrysanthemum eyes, the traditional method often needs a great deal of manual intervention and complicated parameter adjustment, so that the production efficiency and the diversity of patterns are limited. Disclosure of Invention The invention provides a method for determining the locus of pattern sewing, which is used for improving the production efficiency of patterns and the diversity of patterns. In a first aspect, an embodiment of the present invention provides a method for determining a locus of pattern sewing, where the pattern is sewn by using an arc seam and a zigzag seam, the method for determining the locus of pattern sewing includes: Determining coordinates of an initial starting point and a first starting point of the circular arc seam under a preset coordinate system according to the radius of the circular arc seam and the radius of an inner ring of the zigzag seam, wherein the radius of the inner ring of the zigzag seam is the distance between the vertex of the zigzag seam closest to the origin of the preset coordinate system and the origin of the preset coordinate system; determining the needle number of the circular arc seam and the needle falling coordinate of each needle according to the preset needle distance and the first joint point; Determining the coordinates of a second starting point of the curved crease under the preset coordinate system according to the outer circle radius of the curved crease, wherein the outer circle radius of the curved crease is the distance between the vertex farthest from the curved crease to the origin of the preset coordinate system and the origin of the preset coordinate system; And determining needle falling coordinates of the curved crease according to a preset total needle number, the needle number of the circular crease, the number of turns of the curved crease, the second starting point, the inner circle radius and the outer circle radius of the curved crease. The method comprises the steps of selecting a first circular arc seam, wherein the first circular arc seam at least comprises a circle of first circular arc seam, the first circle of first circular arc seam comprises an initial reinforcing seam and a first conventional seam, determining the needle number of the circular arc seam and the needle falling coordinate of each needle according to a preset needle distance and the first joint point, and comprises the following steps: Determining the number of the initial reinforcement seam and the needle falling coordinate of each needle in the first circle of the first circular arc seam according to the initial reinforcement preset arc length, the initial reinforcement preset needle distance and the first joint point; And determining the needle number of the first conventional stitch and the needle falling coordinate of each needle in the first circle of the first circular arc stitch according to the first conventional preset needle pitch and the needle falling coordinate of the stitch reinforcement. Optionally, determining the number of the needles of the initial reinforcement seam and the needle falling coordinates of each needle in the first circle of the first circular arc seam according to the initial reinforcement preset arc length, the initial reinforcement preset needle distance and the first joint point comprises: determining the needle number of the initial reinforcement seam according to the ratio of the initial reinforcement preset arc length to the initial reinforcement preset needle pitch; Determining a central angle corresponding to the initial reinforcement preset stitch length according to the initial reinforcement preset stitch length and the radius of the first circular arc seam; and determining the needle falling coordinate of each needle in the initial reinforcing seam according to the central angle of each needle in the initial reinforcing seam relative to the origin of the preset coordinate system and the origin coordinate of the preset coordinate system. Optionally, the circular arc seam comprises at least two circles of first circular arc seams, and after determining the needle number of the conventional seams and the needle falling coordinates of each needle in the first circle of first circular arc seams according to the first conventional preset needle pitch and the needle falling coordinates of the initial reinforcing se