A sewing processing method for integrating a car channel line and a lock daisy eye

Abstract

The present application belongs to the technical field of garment sewing processing, and discloses a sewing processing method integrating channel line sewing and lock eyelet sewing, comprising the following steps: preparing a template for integrating channel line sewing and lock eyelet sewing, wherein the template comprises a first set of templates and a second set of templates; preparing each piece of workpiece to be processed, stacking them in order, and then placing them into the first set of templates, covering the templates to compress and fix them, sewing the channel line according to the template line groove, and obtaining a semi-processed piece; filling the semi-processed piece with down, placing it into the second set of templates after sewing, fixing the piece on the template with a nail, placing the channel piece on the line groove, covering the template, and sewing the channel line according to the template line groove; after filling the channel line with down, punching the eyelet and locking the hole, and completing the sewing. The present application avoids the problems of cloth displacement error and fabric deformation through innovation of tool structure and reconstruction of process flow, and fills the gap in the industry in the integrated continuous sewing forming technology.

Description

Technical Field

[0001] This invention belongs to the field of garment sewing processing technology, specifically relating to a sewing processing method that integrates the guide rail and the chrysanthemum eyelet. Background Technology

[0002] Existing mass production processes for drawstring channel sewing and chrysanthemum eyelet keyhole processing have long relied on traditional methods involving process separation, multiple clamping, and shifting. In applications involving stretchable fabrics such as elastic knits and flexible woven fabrics, these methods suffer from a series of industry bottlenecks, including poor positioning accuracy, irreversible fabric deformation, poor finished product consistency, high reliance on manual labor, low production efficiency, and high manufacturing costs. These limitations fail to meet the demands of modern garment manufacturing for large-scale, high-quality, standardized, and lean production. This invention addresses these structural defects and industry pain points through fundamental technological innovation.

[0003] Currently, the industry uses separate, independent processes for drawstring channel sewing and buttonhole processing, consisting of three separate steps: channel thread sewing, cut piece transfer, and secondary buttonhole alignment. This traditional process has inherent flaws, especially with high-elasticity, lightweight, and flexible fabrics, resulting in frequent quality defects and extremely poor process stability. Specific problems are as follows:

[0004] 1. Multiple shifting and positioning operations make it impossible to guarantee processing accuracy, resulting in a persistently high defect rate.

[0005] Traditional processes require multiple steps of fabric laying, pressing, shifting, alignment, and keyhole installation. Each time the cut pieces are disassembled and shifted, cumulative positional deviations occur, easily leading to quality defects such as skewed drawstring lines, misaligned holes, misaligned threads and holes, and eccentric keyholes. The margin for human error is extremely low, and the large dimensional variation in mass production results in persistently high rework and defect rates, which are the core technical root causes of quality defects in the drawstring section.

[0006] 2. Repeated stretching and compression cause irreversible fabric deformation, resulting in a significant degradation in the appearance and quality of the finished product.

[0007] Elastic and flexible fabrics have high stretchability but low stability. Repeated manual repositioning, stretching, and pressing can lead to defects such as localized stretching and deformation of the cut pieces, wrinkling of seams, bulging of openings, exposed buttonholes, and uneven fabric surfaces. Traditional processes cannot achieve a stable, flat, and uniform forming effect, resulting in finished products with insufficient refinement that cannot meet the appearance quality standards of mid-to-high-end apparel.

[0008] 3. The process is highly dependent on skilled workers, making standardized mass production impossible and resulting in uncontrollable quality.

[0009] The current processing methods lack a unified mechanical standard, relying entirely on the operator's experience, eyesight, and operational techniques for alignment and calibration. Results vary from person to person and from time to time, with low pass rates for newcomers and significant batch-to-batch fluctuations for experienced workers. Problems such as batch-to-batch color differences, hole position deviations, and inconsistent stitch tightness are common, and the industry has long faced a technological dilemma of being unable to standardize, maintain consistent quality, or achieve large-scale production.

[0010] 4. High rework and scrap rates lead to significant waste of materials and time, resulting in continuously rising production costs for enterprises.

[0011] Multiple processing steps can easily cause permanent deformation of the cut pieces, leading to their direct scrapping. At the same time, a large number of misaligned, skewed, and substandard semi-finished products need to be disassembled, re-sewn, and repaired, resulting in serious material, thread, and labor losses. This significantly reduces the profit margin of garment factories and makes production cost control extremely difficult.

[0012] Therefore, there is an urgent need for a machining method that can be completed in one clamping, in-situ continuous, coaxial forming, and integrated for machining of car access lines and lock chrysanthemum eyelets. Summary of the Invention

[0013] To overcome the aforementioned difficulties, this invention achieves continuous in-situ forming of multiple processes with single positioning and no fixed location throughout the entire process through tooling structure innovation and process flow reconstruction. This eliminates displacement errors and fabric deformation problems, achieving multiple technological breakthroughs in quality improvement, efficiency enhancement, cost reduction, and standardized mass production, filling the gap in integrated continuous sewing forming technology in the industry. The technical solution is as follows:

[0014] This invention provides a sewing process that integrates the guide rail and the chrysanthemum eyelet, comprising the following steps:

[0015] A template for preparing integrated sewing of the car channel line and the chrysanthemum eyelet is provided, the template comprising a first template and a second template;

[0016] Pre-fabricated pieces are stacked in order and placed into the first template. The template is then closed, pressed, and fixed. The pieces are sewn along the template grooves to obtain semi-finished pieces.

[0017] Fill the semi-processed pieces with down, sew them together, and place them in the second template. Fix the pieces on the template with nails, place the duct piece in the groove, cover the template, and sew the duct line according to the template groove.

[0018] After brushing the fleece along the middle of the channel line, punch holes to create eyelets and lock the holes to complete the sewing.

[0019] Furthermore, the order of the vehicle lane lines is as follows: first, the central lane line is used, then the lane lines on both sides are used.

[0020] Furthermore, the inner diameter of the chrysanthemum eye is 0.25-0.35cm.

[0021] Furthermore, the punching method includes laser engraving.

[0022] Furthermore, the keyhole is formed by 2-4 loops of wire around the chrysanthemum eyelet lock.

[0023] Furthermore, the first set of templates includes a first base plate layer and a first cover layer; the second set of templates includes a second base plate layer and a second cover layer.

[0024] Furthermore, both the first and second base plates are used to position and fix the cut pieces; both the first and second cover plates are provided with grooves.

[0025] Furthermore, horsehair liners are provided on the first and second base plates to increase friction.

[0026] Furthermore, the template is made of transparent soft plastic, which makes it easy to observe whether the cut pieces are flat, without wrinkles, and without flipping.

[0027] Furthermore, the hooks are positioned along the edges of the cut piece.

[0028] Beneficial effects

[0029] 1. Eliminating errors caused by multiple positioning, achieving a qualitative improvement in processing accuracy, and significantly reducing the defect rate, this invention achieves zero displacement processing throughout the entire process with a single clamping, eliminating the cumulative deviation caused by multiple disassembly, alignment, and displacement, ensuring that the channel line and the chrysanthemum eye are coaxial and centered, the dimensional tolerance is stable and controllable, and the consistency of batch product accuracy is greatly improved, solving the problem of high-frequency defects in the drawstring part from the source of the process.

[0030] 2. Avoids fabric stretching and deformation, significantly improves the refinement of finished garments, elevates product grade and added value. The processing process involves no secondary movement, no repeated pressing, and no stretching or deformation, resulting in flat and stable cut pieces. It solves appearance defects such as wrinkles, bulges, exposed white areas, and skewing. The finished products are neat, exquisite, and highly uniform, fully meeting the appearance quality requirements of high-end apparel and effectively enhancing the product's market competitiveness.

[0031] 3. Eliminating reliance on human experience and achieving skill-free process, resulting in highly stable mass production quality. This invention replaces manual visual judgment with rigid mechanical templates as benchmarks. Operations do not depend on worker experience, techniques, or conditions, enabling rapid and standardized operations. It solves the problem of quality fluctuations caused by individuals, shifts, and batches, achieving industrialized, standardized, and stable product quality.

[0032] 4. The highly integrated and simplified process significantly reduces the overall production costs of labor, materials, and rework. The three processes are combined into a single-station continuous operation, reducing job configuration, equipment occupation, and the scrapping and rework of cut pieces. This greatly saves labor hours, fabric, thread, and management costs, significantly improves production yield and overall capacity, and helps enterprises achieve lean cost reduction, quality improvement, and efficiency enhancement.

[0033] 5. Adaptable to all materials, all categories, and large-scale rapid response production, with strong industry versatility and scalability. This invention can be widely applied to various products with drawstring structures such as down jackets, knitwear, and casual wear. It is compatible with various easily deformable fabrics such as elastic, lightweight, and woven fabrics. It features fast production cycle, strong stability, and wide applicability, and can fully meet the needs of modern apparel companies for large-scale production with short lead times and high quality. Attached Figure Description

[0034] Figure 1 This is a flowchart of the pre-cutting process in Embodiment 1 of the present invention;

[0035] Figure 2 This is a flowchart illustrating the operation of the first template in Embodiment 1 of the present invention.

[0036] Figure 3 This is a flowchart of the operation of the second template in Embodiment 1 of the present invention.

[0037] Figure Labels

[0038] 1. Horsehair lining; 2. Hanging nails; 3. Carriage passage lines; 4. Eyelets; 5. First base layer; 6. First cover layer; 7. Second base layer; 8. Second cover layer. Detailed Implementation

[0039] This embodiment describes a specific implementation of the weaving channels and chrysanthemum eyelets on the sleeve of a down jacket.

[0040] First, a template for integrated sewing of the car door seam and the chrysanthemum eyelet is prepared, the template including a first template and a second template;

[0041] like Figure 1 Prefabricate each sleeve piece to be processed, cut the fabric sleeve pieces and the inner sleeve pieces, as well as the inner sleeve piece;

[0042] like Figure 2 After stacking the sleeve pieces in order, place them into the first template, cover the template and press it firmly to fix it. Then sew along the template grooves to obtain a semi-finished sleeve piece.

[0043] The semi-finished sleeve pieces are stuffed with down, sewn together, and then placed into a second template, as shown. Figure 3 Use nail 2 to fix the sleeve piece to the template, place the inner channel piece in the groove, cover the template, and sew the channel line 3 according to the template groove. First sew the center channel line 3, and then sew the channel lines 3 on both sides.

[0044] After patting the fleece in the middle of channel line 3, use a laser to punch holes for chrysanthemum eyes 4 and sew 3 turns of thread to lock the holes, thus completing the sewing.

[0045] Specifically, the inner diameter of the chrysanthemum eye 4 is 0.3 cm.

[0046] Furthermore, the first set of templates includes a first base plate layer 5 and a first cover layer 6; the second set of templates includes a second base plate layer 7 and a second cover layer 8.

[0047] Furthermore, both the first base plate layer 5 and the second base plate layer 7 are used to position and fix the cut pieces; both the first cover layer 6 and the second cover layer 8 are provided with wire grooves.

[0048] Furthermore, horsehair liners 1 are provided on the first bottom plate layer 5 and the second bottom plate layer 7 to increase friction.

[0049] Specifically, the template material is transparent soft plastic.

[0050] Specifically, the hooks 2 are provided along the edge of the cut piece.

[0051] Example 2

[0052] This embodiment describes a specific implementation of the weft insertion lines and chrysanthemum eyelets on the hood of a down jacket.

[0053] First, a template for integrated sewing of the car door seam and the chrysanthemum eyelet is prepared, the template including a first template and a second template;

[0054] Prefabricate the various cap pieces to be processed, cut the fabric cap pieces and the lining cap pieces, as well as the lining tunnel pieces;

[0055] After stacking the cap pieces in order, place them into the first template, cover the template and press it firmly to fix it. Then sew along the template grooves to obtain a semi-finished cap piece.

[0056] The semi-finished cap pieces are stuffed with down, sewn together, and then placed into a second template, such as... Figure 3 Use nail 2 to fix the cap piece to the template, place the inner tube channel piece in the groove, cover the template, and sew the channel line 3 according to the template groove. First sew the central channel line 3, and then sew the channel lines 3 on both sides.

[0057] After patting the fleece in the middle of channel line 3, use a laser to punch holes for chrysanthemum eyes 4 and sew 3 turns of thread to lock the holes, thus completing the sewing.

[0058] Specifically, the inner diameter of the chrysanthemum eye 4 is 0.3 cm.

[0059] Furthermore, the first set of templates includes a first base plate layer 5 and a first cover layer 6; the second set of templates includes a second base plate layer 7 and a second cover layer 8.

[0060] Furthermore, both the first base plate layer 5 and the second base plate layer 7 are used to position and fix the cut pieces; both the first cover layer 6 and the second cover layer 8 are provided with wire grooves.

[0061] Furthermore, horsehair liners 1 are provided on the first bottom plate layer 5 and the second bottom plate layer 7 to increase friction.

[0062] Specifically, the template material is transparent soft plastic.

[0063] Specifically, the hooks 2 are provided along the edge of the cut piece.

[0064] Example 3

[0065] This embodiment describes a specific implementation of the weft insertion lines and chrysanthemum eyelets on the waist section of a down jacket.

[0066] First, a template for integrated sewing of the car door seam and the chrysanthemum eyelet is prepared, the template including a first template and a second template;

[0067] Prefabricate the waist pieces to be processed, cut the fabric waist pieces and the lining waist pieces, as well as the lining channel pieces;

[0068] After stacking the waist pieces in order, place them into the first set of templates, close the templates and press them tightly to fix them. Then sew along the template grooves to obtain the semi-finished waist pieces.

[0069] The semi-finished waist piece is stuffed with down, and after stuffing and sewing, it is placed into the second template, such as... Figure 3 Use nail 2 to fix the sleeve piece to the template, place the inner channel piece in the groove, cover the template, and sew the channel line 3 according to the template groove. First sew the center channel line 3, and then sew the channel lines 3 on both sides.

[0070] After patting the fleece in the middle of channel line 3, use a laser to punch holes for chrysanthemum eyes 4 and sew 3 turns of thread to lock the holes, thus completing the sewing.

[0071] Specifically, the inner diameter of the chrysanthemum eye 4 is 0.3 cm.

[0072] Furthermore, the first set of templates includes a first base plate layer 5 and a first cover layer 6; the second set of templates includes a second base plate layer 7 and a second cover layer 8.

[0073] Furthermore, both the first base plate layer 5 and the second base plate layer 7 are used to position and fix the cut pieces; both the first cover layer 6 and the second cover layer 8 are provided with wire grooves.

[0074] Furthermore, horsehair liners 1 are provided on the first bottom plate layer 5 and the second bottom plate layer 7 to increase friction.

[0075] Specifically, the template material is transparent soft plastic.

[0076] Specifically, the hooks 2 are provided along the edge of the cut piece.

[0077] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A sewing process method integrating a weft thread and a chrysanthemum eyelet, characterized in that, Includes the following steps: A template for preparing integrated sewing of the car channel line and the chrysanthemum eyelet is provided, the template comprising a first template and a second template; Pre-fabricated pieces are stacked in order and placed into the first template. The template is then closed, pressed, and fixed. The pieces are sewn along the template grooves to obtain semi-finished pieces. Fill the semi-processed pieces with down, sew them together, and place them in the second template. Fix the pieces on the template with nails, place the duct piece in the groove, cover the template, and sew the duct line according to the template groove. After brushing the fleece along the middle of the channel line, punch holes to create eyelets and lock the holes to complete the sewing.

2. The sewing process method according to claim 1, characterized in that, The order of the vehicle lanes is as follows: first, vehicles travel along the central lane, then along the lanes on both sides.

3. The sewing process method according to claim 1, characterized in that, The inner diameter of the chrysanthemum eye is 0.25-0.35cm.

4. The sewing process method according to claim 1, characterized in that, The punching method includes laser cutting.

5. The sewing process method according to claim 1, characterized in that, The keyhole is formed by 2-4 loops of wire around the chrysanthemum eyelet lock.

6. The sewing process method according to claim 1, characterized in that, The first set of templates includes a first base plate layer and a first cover layer; the second set of templates includes a second base plate layer and a second cover layer.

7. The sewing process method according to claim 6, characterized in that, Both the first and second base plates are used to position and fix the cut pieces; both the first and second cover plates are provided with grooves.

8. The sewing process method according to claim 6, characterized in that, Horsehair liners are provided on the first and second base plates to increase friction.

9. The sewing process method according to claim 1, characterized in that, The template is made of transparent soft plastic.

10. The sewing process method according to claim 1, characterized in that, The hooks are set along the edge of the cut piece.

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