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A simplified control method and system for the bottom thread allowance of long sutures

A technology that simplifies control and long seams, applied in the field of sewing equipment control, can solve the problem of different lengths and large differences. A short stitch can be only a few millimeters, while a long stitch may reach 1 meter or 2 meters. Even more than 10 meters, the surface line is not beautiful and other problems, to achieve the effect of efficient execution, high accuracy and simple control method

Active Publication Date: 2021-08-06
BULLMER ELECTROMECHANICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But in actual use, because the stitches in the fabrics sewn by the template machine are generally of different lengths, and the lengths vary greatly. A short stitch can be only a few millimeters, while a long stitch may reach 1 meter or 2 meters. , or even more than 10 meters; the bottom line margin is generally set to 2-3 meters, that is, when the actual bottom line margin reaches 2-3 meters, it will be detected and an alarm signal of insufficient bottom line margin will be detected. It is made on a relatively long suture and only sewed for 1 meter, and the total length of this suture is 5 meters, so the remaining 4 meters are greater than the actual allowance of the bottom line, that is to say, the actual allowance of the bottom line is It is not enough to sew the seam completely, and it needs to be stitched halfway. If the stitching point is just in an important area of ​​the fabric, such as an important color or a conspicuous area, it will cause the upper thread to be very unsightly.

Method used

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  • A simplified control method and system for the bottom thread allowance of long sutures
  • A simplified control method and system for the bottom thread allowance of long sutures
  • A simplified control method and system for the bottom thread allowance of long sutures

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Experimental program
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Effect test

Embodiment 1

[0034] Such as figure 1 As shown, the simplified control method for the bottom thread margin of the long suture includes the following steps:

[0035] S1. When receiving the signal of insufficient bottom line margin, judge whether the current suture is a long suture, if so, execute step S2; if not, continue to sew the current suture, complete thread trimming and stop the machine to replace the bobbin;

[0036] Wherein, the long suture is a suture whose bottom thread length to be consumed is X and X>M, and M is the remaining length of the bottom thread, such as figure 2 shown.

[0037] Bottom thread margin length M can be set in advance and can guarantee a fixed length value. The specific implementation can be as disclosed in the publication number CN109706646A, the patent name is the monitoring method and device of sewing machine bottom thread margin. L is wound on the bobbin along one direction, and then the bottom thread is turned back, and continues to be wound on the bo...

Embodiment 2

[0047] Such as Figure 4 As shown, the simplified control system of the bottom thread margin of the long suture includes:

[0048] The judging module is used for judging whether the current suture is a long suture when receiving a signal of insufficient bottom thread margin, and if so, starts the identification module; if not, continues to sew the current suture, completes the thread trimming and stops the machine for replacement bobbin;

[0049] Among them, the long suture is the bottom thread that needs to be consumed with a length of X and X>M, and M is the remaining length of the bottom thread;

[0050] The identification module is used to identify all the virtual thread trimming points N1, N2...Nn on the current thread when it is determined to be a long thread, and the virtual thread trimming points N1, N2...Nn divide the current thread into m segments virtually, and calculate The lengths of each segment are respectively Y1, Y2...Ym, where m=n+1, and Y1, Y2...Ym are all...

Embodiment 3

[0057] Provided is a computer device, comprising a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the computer program, the steps of the simplified control method for the bottom thread margin of long sutures are realized. The specific implementation of the simplified control method for the bottom thread margin of the long suture is the same as that of the first embodiment, and will not be repeated here.

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Abstract

The invention provides a simplified control method and system for the bottom thread allowance of long sutures, belonging to the technical field of sewing equipment control. It solves the problem that when the bottom thread margin is not enough to sew the current suture, it is prone to disorderly trimming and the suture is not beautiful. The control method includes steps: S1. When receiving the signal of insufficient bottom line margin, judge whether the current suture is a long suture, and if so, execute step S2; S2. Identify all virtual thread trimming points N1 and N2 on the current suture ...Nn, calculate the length of each segment as Y1, Y2...Ym; S3, detect and calculate the current position C of the needle, calculate the distance from the current position C to the starting point A as Z, and use the formula Y1+Y2+...+Yx≤Z<Y1 +Y2+…+Y(x+1) calculates the value of x, and controls to continue sewing until the virtual thread trimming point N(x+1) completes the thread trimming and stops to replace the bobbin. This control method has the advantage of avoiding disorderly thread cutting to make the suture beautiful.

Description

technical field [0001] The invention belongs to the technical field of sewing equipment control, and relates to a simplified control method and system for the bottom thread allowance of long sutures. Background technique [0002] Template machine is a special sewing machine emerging in recent years. Due to the large sewing area of ​​template machine, it is easy to have insufficient bottom thread, so it is necessary to monitor and alarm the remaining amount of bottom thread. Existing bobbin thread remaining insufficient detection technology is comparatively mature, as Publication No. CN109706646A, the name is disclosed in the Chinese patent of the monitoring method and device of sewing machine bobbin thread surplus the Hall sensor mode detection mode and the photoelectric sensor detection mode. [0003] But in actual use, because the stitches in the fabrics sewn by the template machine are generally of different lengths, and the lengths vary greatly. A short stitch can be onl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B59/02D05B59/04D05B65/00
CPCD05B59/02D05B59/04D05B65/00
Inventor 洪武陈建
Owner BULLMER ELECTROMECHANICAL TECH