Method for forming overedge stitch or overedge seam

Abstract

A method for forming an overedge stitch or an overedge seam, the method comprising the following steps: step 1, generating two or more thread loops or thread loop sets; step 2, bending thread loop legs of the thread loops or thread loop sets in step 1 into double-thread loops; step 3, passing the double-thread loops in step 2 through a material to be sewn, and then passing same through thread loop arcs of the thread loops or thread loop sets in step 1; and step 4, pulling surface threads (1, 2) to sequentially pass through the double-thread loops that have passed through said material and the thread loop arcs in step 3 so as to form an overedge stitch or an overedge seam. Existing overedge seams are formed by repeating a single stitch, thereby being low in efficiency. All the stitch-forming operations in steps 1-3 can be performed synchronously before proceeding to the next step, without requiring manual control of a sewing process, resulting in high stitch consistency and low dependence on operator skill, thereby improving the sewing efficiency.

Description

A method for achieving edge binding stitches or edge binding seams Technical Field

[0001] This relates to the sewing field, specifically the sewing technique of binding stitches. Background Technology

[0002] Current binding stitches are created by a set of needles sequentially, each needle producing a loop of thread that interconnects to form a binding stitch. This process is repeated until the desired seam is completed. The characteristic of this method is that the stitches can only be completed one stitch at a time, and sewing efficiency depends on sewing speed. However, after years of development, due to limitations in motor speed, thread quality, and needle properties, sewing speed has reached its limit, and there is no room for further improvement in sewing efficiency. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a method for achieving bound edge stitches or bound edge seams, characterized by comprising the following steps:

[0004] Step 1: Generate two or more loops or loop sleeves at once.

[0005] Step 2: Bend the loop foot or loop sleeve from Step 1 into a double loop.

[0006] Step 3: Pass the double loop from Step 2 through the material to be sewn, and then through the loop arc from Step 1 or the loop arc of the loop loop.

[0007] Step 4: The traction thread passes sequentially through the double loop that passed through the sewing material and the loop in Step 3 above, forming an edge binding stitch or edge binding seam.

[0008] In this invention, steps 1-3 can be performed simultaneously, with the next step only proceeding after all steps are completed. Finally, the top thread is passed through sequentially to create the overlock stitch. The stitches are generated in one go, eliminating the need for manual control of the sewing process. Furthermore, the resulting stitches exhibit high consistency, reducing reliance on human skill and thus improving sewing production efficiency. Attached Figure Description

[0009] The attached diagram is a structural schematic and does not represent the actual number of stitches.

[0010] Figure 1. Multiple loops formed by two lines.

[0011] Figure 2. 502 binding seam

[0012] Figure 3. The binding seam formed by the double loop passing through the loop arc located in the same loop as itself.

[0013] Figure 4 512 binding seam

[0014] Figure 5 514 binding seam

[0015] Figure 6. 507 binding seam

[0016] Where a and b represent the bottom line, and 1, 2, etc. represent the top line. The best embodiment of the present invention

[0017] In the description of this invention, most of the terminology is derived from the standard documents ISO 4915 and ISO 4916.

[0018] According to the ISO definition, lines a, b, 1, 2, etc. can be a single line or a combination of two or more lines.

[0019] Unlike the ISO terminology of top and bottom threads, the top and bottom threads mentioned in this invention do not refer to a distinction between the front and back sides of the overlock stitch. Rather, they are used for convenience to replace the traditional terms for curved and straight needle threads.

[0020] In this invention, "overlock stitch" and "edge stitch" have the same meaning.

[0021] The thread loop in this invention refers to the structure formed by interconnecting thread loops belonging to different sutures. Referring to Figure 2, multiple thread loops are formed by two threads, a and b. The loop arc of thread b and the loop foot of thread a are no longer free after interconnection. Therefore, the loop foot of thread b is considered the loop foot of the thread loop loop, and the loop arc of thread a is considered the loop arc of the thread loop loop. Similarly, more threads can be added to form a longer thread loop loop.

[0022] To facilitate understanding of the present invention, some embodiments will be described in more detail below with reference to the accompanying drawings. However, the present invention can achieve various combinations of binding seams and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosure of the present invention. Example 1

[0023] Example 1, referring to Figure 2, implement the 502 binding seam. The specific steps are as follows:

[0024] Step 1: Generate multiple loops from suture thread a.

[0025] Step 2: Bend the loop from Step 1 into a double loop.

[0026] Step 3: Pass the double loop generated in Step 2 through the material to be sewn, and then through the adjacent loop at the loop arc generated in Step 1.

[0027] Step 4: The traction thread 1 passes through the double thread loop that passed through the sewing material and the loop in Step 3 to form the overlock 502. Example 2

[0028] Example 2, referring to Figure 3, implements a type of binding seam that is not within the scope of ISO definition. Specifically, in step 3 of Example 1, after the double-loop thread passes through the sewing material, it passes through the loop arc of the loop in which it is located, and finally forms the binding seam. Example 3

[0029] Example 3, referring to Figure 4, involves implementing the binding seam 512. The specific process is as follows:

[0030] Step 1: Create multiple loops using two threads, a and b.

[0031] Step 2: On line b, one double loop is generated at the waist and one foot of the loop generated in step 1. The two double loops located in each loop are considered as a group.

[0032] Step 3: Pass each set of double-thread loops generated in Step 2 through the material to be sewn, then pass the entire loop through the adjacent loop and place it over the loop arc generated by thread a in Step 1.

[0033] Step 4: The traction thread 1 passes sequentially through the double loop generated by the loop foot and after passing through the sewing material and loop arc in step 3 above. The traction thread 2 passes sequentially through the double loop generated by the loop waist and after passing through the sewing material and loop arc in step 3 above, forming the overlock stitch 512. Example 4

[0034] Example 4, referring to Figure 5, achieves the binding seam 514. The specific method is similar to Example 3, except that in step 3, a double loop generated on the waist of each loop of thread b passes through the sewing material and then passes through the adjacent loop to fit the loop arc generated by thread a in step 1. The double loop generated on the foot of each loop of thread b passes through the sewing material but does not pass through the loop arc, thus forming the binding seam 514. Example 5

[0035] Example 5, referring to Figure 6, implement the binding seam 507, the specific process is as follows:

[0036] Step 1: After thread 1 generates multiple loops that pass through the material to be sewn, it joins the loops generated by thread 1 on the bottom edge and then connects with thread 2 to form a single loop.

[0037] Step 2: Bend the loop at the base of the loop generated in Step 1 into a double loop.

[0038] Step 3: Pass the double loop created by thread b in step 2 through the material to be sewn, then pass it through the adjacent loop and place it over the loop arc created by thread a in step 1.

[0039] Step 4: The traction thread 2 passes through the double-thread loops generated by thread b through the sewing material in sequence to form the overlock 507.

Claims

1. A method for achieving edge binding stitches or edge binding seams, characterized in that... Includes the following steps, Step 1: Generate two or more loops or loop sleeves at once. Step 2: Bend the loop foot or loop sleeve from Step 1 into a double loop. Step 3: Pass the double loop from Step 2 through the material to be sewn, and then through the loop arc from Step 1 or the loop arc of the loop loop. Step 4: The traction thread passes sequentially through the double loop that passed through the sewing material and the loop arc in Step 3 above, forming an edge binding stitch or edge binding seam.

2. The method as described in claim 1, wherein in step 3, the double-line loop passes through the stitching material and then through the edge seam formed by the loop arc of the double-line loop itself, which is located in step 1.

3. The method as described in claim 2, wherein step 1 generates one loop or loop sleeve at a time to achieve the edge stitching.

4. The method as described in claim 1, wherein in step 3, the double-loop thread passes through the sewing material and then through the adjacent loop arc generated in step 1 to form an edge binding stitch or edge binding seam.

5. The method as described in claim 4, wherein in step 3, there will be a double-line loop at the end that passes through the stitching material without a corresponding loop arc, and the face thread can be directly passed through the double-line loop.

6. The method as described in claim 4, wherein in step 3 there will be an extra loop at the end without a double loop passing through it, can be achieved by bending a single loop at the end of the chain bottom thread in step 2, passing it through the stitching material and the loop arc, and then passing it through the top thread in step 5.

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