A pant fly zipper sewing template

Abstract

The utility model discloses a kind of trousers door fly sewing templates, comprising: bottom plate, zipper placing groove is set on bottom plate, first bottom plate sewing groove, fourth bottom plate sewing groove are respectively set in zipper placing groove two sides, second bottom plate sewing groove is set in the fourth bottom plate sewing groove below, third bottom plate sewing groove is set in the side edge of first bottom plate sewing groove;Cover plate is located on bottom plate, zipper tooth groove, first sewing groove, fourth sewing groove, third sewing groove, second sewing groove corresponding with each groove on bottom plate are set on cover plate;First flap is located on one side of cover plate, fifth sewing groove, sixth sewing groove corresponding with first sewing groove, second sewing groove are set on first flap;Second flap is located on the other side of cover plate, seventh sewing groove, eighth sewing groove corresponding with third sewing groove, fourth sewing groove are set on second flap;Bottom plate, cover plate are connected by adhesive mode on the same side.The utility model is through the multilayer template structure of openable and closable, simplifies original sewing operation step, reduces operation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of sewing and weaving template technology, and in particular to a zipper sewing template for trouser plackets. Background Technology

[0002] The front placket refers to the opening, slit, or partition at the front center of a garment, trousers, or skirt. It typically requires zippers, buttons, overlocks, snap fasteners, Velcro, or other closures to facilitate opening and closing. In everyday life, men's trousers or jeans often have a slit from the waistband to the crotch, fitted with a zipper or button; this is also called a placket. In garment manufacturing, sewing the zipper on the placket is a crucial and technically demanding process. The smoothness and symmetry of the placket area, as well as the smoothness of the zipper, directly affect the finished product's appearance and wearing comfort.

[0003] Currently, this process mainly relies on manual operation. Operators must manually position, align, and smooth the zipper teeth, placket facing, and trouser pieces before finishing the stitching on a sewing machine. This traditional method has the following inherent drawbacks: Poor positioning accuracy and inconsistent quality: Relying entirely on the worker's experience and feel makes it difficult to guarantee the absolute accuracy of the relative position of the zipper and garment piece during each sewing. This easily leads to quality problems such as crooked stitches, asymmetry on both sides of the placket, and zipper jamming, resulting in poor consistency in product appearance and quality.

[0004] The process is difficult and inefficient: because the placket area is usually made of multiple layers of fabric, and the zipper has a certain rigidity, it is difficult to keep all parts flat and without shifting when manually fixing and sewing. This not only requires high operational skills but also makes it difficult to improve production efficiency and makes it highly dependent on skilled workers.

[0005] High defect rate and increased costs: The aforementioned problems such as inaccurate positioning and fabric displacement directly lead to a high rework rate and defect rate during the sewing process, increasing production and time costs.

[0006] To overcome these challenges, simple sewing templates have emerged in the industry, but their functions are often limited, typically only capable of basic positioning. They lack effective solutions for critical issues such as complex multi-layer alignment in placket sewing, special treatment of zipper heads, and preventing fabric slippage during sewing. Utility Model Content

[0007] To address the deficiencies in the aforementioned background technology, this utility model provides a trouser placket zipper sewing template that is easy to operate and can ensure product sewing quality.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A template for sewing a zipper on a trouser fly, comprising: The base plate has a zipper placement groove, a second base plate sewing groove, and a third base plate sewing groove. A first base plate sewing groove and a fourth base plate sewing groove are respectively provided on both sides of the zipper placement groove. The second base plate sewing groove is located below the fourth base plate sewing groove, and the third base plate sewing groove is located on the side of the first base plate sewing groove. A cover plate is located on the base plate. The cover plate is provided with a zipper tooth groove corresponding to the zipper placement groove, a first sewing groove corresponding to the first base plate sewing groove, a fourth sewing groove corresponding to the fourth base plate sewing groove, a third sewing groove corresponding to the third base plate sewing groove, and a second sewing groove corresponding to the second base plate sewing groove. The first flap is located on one side of the cover plate and is placed on the cover plate when in use. The first flap is provided with a fifth sewing groove and a sixth sewing groove corresponding to the first sewing groove and the second sewing groove. The second flap is located on the other side of the cover plate, opposite to the first flap, and is placed on the cover plate when in use. The second flap is provided with a seventh sewing groove (25) and an eighth sewing groove corresponding to the third sewing groove and the fourth sewing groove. The base plate and the cover plate are connected together on the same side by adhesive bonding.

[0009] Preferably, a number of auxiliary strips are provided on the upper surface of the base plate.

[0010] Preferably, a first anti-slip strip is provided on the upper surface of the base plate and on the side near the first base plate sewing groove.

[0011] Preferably, a second anti-slip strip is provided on the upper surface of the cover plate and on the side near the fourth sewing groove, and a third anti-slip strip is provided above the zipper tooth groove, perpendicular to the second anti-slip strip and intersecting the second anti-slip strip; A fourth anti-slip strip with the same shape as the second sewing groove is provided on one side of the cover plate.

[0012] Preferably, an auxiliary pressure plate is provided on the upper surface of the cover plate. When in use, the auxiliary pressure plate is pressed tightly against the side of the fourth sewing groove on the cover plate to press the garment piece tightly onto the zipper sewing position.

[0013] Preferably, the auxiliary pressure plate has a magnet groove corresponding to the magnet sheet on the cover plate.

[0014] Preferably, a first zipper head half-groove is provided on the side of the fifth sewing groove on the first flip plate to limit the zipper head and make the sewing surface flat.

[0015] Preferably, a second zipper head half-groove is provided between the seventh and eighth sewing grooves on the second flip plate, and the first zipper head half-groove and the second zipper head half-groove are positioned corresponding to each other.

[0016] Preferably, the base plate is provided with machine locking holes.

[0017] The beneficial effects of this utility model are: (1) This utility model provides a trouser placket zipper sewing template, including a base plate, a cover plate, a first flip plate, a second flip plate, and a sewing groove structure that corresponds to and connects with each other, forming a precise sewing path guide channel. During operation, the sewing machine needle only needs to sew along the groove, which fundamentally eliminates problems such as crooked stitches and inaccurate positions caused by differences in human touch, ensuring the absolute consistency of the sewing trajectory of each product, thereby ensuring a high degree of uniformity in the appearance and quality of the final product; the multi-layer template structure that can be folded and opened between the layers simplifies the complex process of positioning, fixing and sewing multi-layer fabrics (trouser pieces, placket facing, zipper) into the steps of "putting in the material - closing the flip plate - sewing along the groove", eliminating the need for workers to repeatedly adjust and align, significantly reducing the difficulty of operation and training costs, enabling novices to quickly produce qualified products, and greatly improving sewing efficiency.

[0018] (2) This utility model provides a zipper sewing template for trousers placket, with auxiliary strips, first anti-slip strips, second anti-slip strips, third anti-slip strips, fourth anti-slip strips and auxiliary pressure plates provided on the base plate and cover plate. The anti-slip and pressing structure can provide sufficient friction or downward pressure at different key positions (such as the sides of the zipper and the edge of the garment piece). Under the impact of the sewing machine needle, it can still firmly fix each layer of material, prevent it from sliding or wrinkling, thereby directly reducing the defect rate caused by displacement and ensuring the flatness and beauty of the placket area.

[0019] (3) This utility model provides a zipper sewing template for trousers placket, with a first zipper head half groove on the first flip plate and a second zipper head half groove on the second flip plate, which optimizes the treatment of the zipper head, avoids uneven sewing caused by zipper head interference and avoids needle breakage or damage caused by the machine needle hitting the zipper head. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the bottom plate structure of a trouser placket zipper sewing template according to this utility model; Figure 2 This is a schematic diagram of the cover plate structure in a trouser placket zipper sewing template according to this utility model; Figure 3 This is a schematic diagram of the first flap structure in a trouser placket zipper sewing template of this utility model; Figure 4This is a schematic diagram of the second flap structure in a trouser placket zipper sewing template of this utility model; Figure 5 This is a schematic diagram of the auxiliary pressure plate structure designed on the cover plate in the preferred embodiment; The components in the attached diagram are labeled as follows: 1. Base plate; 2. Cover plate; 3. First flip plate; 4. Second flip plate; 5. Zipper placement groove; 6. First base plate sewing groove; 7. Second base plate sewing groove; 8. Third base plate sewing groove; 9. Fourth base plate sewing groove; 10. Zipper tooth groove; 11. First sewing groove; 12. Second sewing groove; 13. Third sewing groove; 14. Fourth sewing groove; 15. First zipper head half groove; 16. Second zipper head half groove; 17. First anti-slip strip; 18. Second anti-slip strip; 19. Third anti-slip strip; 20. Fourth anti-slip strip; 21. Auxiliary pressure plate; 22. Magnet groove; 23. Fifth sewing groove; 24. Sixth sewing groove; 25. Seventh sewing groove; 26. Eighth sewing groove; 27. Machine clamp; 28. Zipper head; 29. ​​Magnet piece. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] Example: This embodiment describes the structure of a zipper sewing template for trouser plackets.

[0023] like Figure 1-4 As shown, the trouser placket zipper sewing template mainly includes a base plate 1, a cover plate 2, a first flap 3, and a second flap 4.

[0024] like Figure 1 As shown, Figure 1This is a schematic diagram of the base plate structure in a trouser placket zipper sewing template according to this utility model. The base plate 1 is a rectangular plate for placing on the sewing machine's work platform. Multiple sewing grooves are formed on its surface, specifically including: a zipper placement groove 5 for accommodating the zipper; a first base plate sewing groove 6 and a fourth base plate sewing groove 9 on either side of the zipper placement groove 5; a second base plate sewing groove 7 below the fourth base plate sewing groove 9; and a third base plate sewing groove 8 on the side of the first base plate sewing groove 6. Furthermore, the base plate 1 also has a machine locking hole 27 for connecting to a moving robotic arm on the sewing machine. In this embodiment, the sewing machine needle is fixed, while the moving robotic arm drives the sewing template to move left, right, forward, and backward on the work platform to assist the sewing machine needle in thread movement. The machine positioning hole allows the entire template to be quickly and securely installed on the worktable of an automated sewing machine, preventing the template from moving during high-speed sewing and further ensuring sewing accuracy. Moreover, this design enables the present invention to be seamlessly integrated into modern, automated garment production lines, expanding its application scenarios.

[0025] The cover plate 2 is fixedly connected to the same edge of the base plate 1 by adhesive bonding and can cover the top of the base plate 1. In order to make the cover plate press firmly on the base plate and not slip, several auxiliary strips (not shown in the figure) are also provided on the upper surface of the base plate 1. These auxiliary strips also serve to increase the height between the base plate and the cover plate.

[0026] To enhance the positioning effect, a first anti-slip strip 17 is provided on the side near the first base plate sewing groove 6. When the trouser garment pieces are placed, the first anti-slip strip effectively prevents slippage and also serves to position them correctly.

[0027] like Figure 2 As shown, Figure 2 This is a schematic diagram of the cover plate structure in a trouser placket zipper sewing template according to this utility model. The grooves on the cover plate 2 correspond one-to-one with and are connected to the grooves on the base plate 1, including: zipper tooth groove 10 corresponding to the zipper placement groove 5, first sewing groove 11 corresponding to the first base plate sewing groove 6, fourth sewing groove 14 corresponding to the fourth base plate sewing groove 9, third sewing groove 13 corresponding to the third base plate sewing groove 8, and second sewing groove 12 corresponding to the second base plate sewing groove 7.

[0028] A second anti-slip strip 18 is provided on the upper surface of the cover plate 2, near the fourth sewing groove 14. A third anti-slip strip 19 is provided above the zipper tooth groove 10, perpendicular to and intersecting the second anti-slip strip 18. A fourth anti-slip strip 20 with the same shape as the second sewing groove 12 is provided on one side of the second sewing groove 12. The design of the above anti-slip strips serves both to prevent the garment pieces from sliding and loosening, and to position the garment pieces in place.

[0029] Furthermore, to secure the garment pieces to the sewing machine needle, a first flap 3 is provided on one side of the cover plate 2. The first flap 3 is adhered to one side of the cover plate 2 and can be folded over and placed on top of the cover plate 2 during use. Figure 3 As shown, Figure 3 This is a schematic diagram of the first flap structure in a trouser placket zipper sewing template according to this utility model. The first flap 3 is provided with a fifth sewing groove 23 and a sixth sewing groove 24 that correspond to and communicate with the first sewing groove 22 and the second sewing groove 25 on the cover plate 2. A first zipper head semi-groove 15 is provided on the side of the fifth sewing groove 23 of the first flap 3 to limit the zipper head and make the sewing surface flat.

[0030] Furthermore, to secure the garment pieces to the sewing machine needle, a second flap 4 is provided on the other side of the cover plate 2. The second flap 4 is adhered to the other side of the cover plate 2, opposite to the first flap 3. Figure 4 As shown, Figure 4 This is a schematic diagram of the second flap structure in a trouser placket zipper sewing template according to this utility model. The second flap 4 has a seventh sewing groove 25 and an eighth sewing groove 26 that correspond to and communicate with the third sewing groove 23 and the fourth sewing groove 24 on the cover plate 2. A second zipper head semi-groove 16 is provided between the seventh sewing groove 25 and the eighth sewing groove 26 of the second flap 4. The first zipper head semi-groove 15 and the second zipper head semi-groove 16 are positioned correspondingly and are both used to accommodate and fix the zipper head during sewing, and to help keep the garment piece flat.

[0031] In a preferred embodiment, after the left placket piece is placed to the left of the zipper, an auxiliary pressure plate 5 is provided on the upper surface of the cover plate 2 to better secure the piece and prevent it from shifting as the needle travels along the first sewing groove. This auxiliary pressure plate 5 is fixed by adhesive. In use, the left placket piece is placed to the left of the zipper and aligned with the fourth sewing groove. The auxiliary pressure plate is folded over and pressed tightly onto the left placket piece, adjacent to the fourth sewing groove. After securing the left placket piece, the right placket piece is placed at the zipper position, and then the first flip plate 3 is pressed onto the right placket piece before sewing.

[0032] A magnetic groove is provided on the auxiliary pressure plate 5, which attracts the magnetic piece 29 (not shown in the figure) in the cover plate 2, so that the auxiliary pressure plate 5 can stably press the garment piece.

[0033] The process of using the trouser placket zipper sewing template in this embodiment is as follows: Preparation and Fixing: Secure the base plate 1 to the moving robotic arm of the sewing machine through the machine locking hole 27. The cover plate 2 is bonded to the base plate 1. The first flip plate 3 and the second flip plate 4 are bonded to the opposite sides of the cover plate. Flip up the first flip plate 3 and the second flip plate 4 to move them away from the cover plate 2. Align the cover plate 2 and press it onto the base plate 1.

[0034] Place the zipper and the left side panel: With the zipper facing up, precisely place it in the groove formed by the corresponding zipper placement groove 5 and zipper tooth groove 10, as shown in the figure above (zipper head 28). Then, place the left placket panel (i.e., the left front panel) of the trousers on the left side of the zipper's seam. Fold the auxiliary pressure plate 5 over and press it firmly onto the left placket panel against the fourth seam groove. Then, fold the left placket panel to the left onto the upper surface of the auxiliary pressure plate and secure it using magnetic attraction. Next, cover the cover plate 2 with the first flip plate 3. At this point, the zipper is embedded and limited within the zipper head half-groove 15.

[0035] Placement of the right-side garment piece and initial sewing: Place the right-side placket piece (i.e., the right front trouser piece) of the trousers to the right of the zipper, aligning all parts. Then, press the first flap 3 over the right-side garment piece, with the zipper head corresponding to the second zipper head half-groove. At this point, the operator uses a sewing machine, with the needle sequentially sewing along the fifth sewing groove 23 and the sixth sewing groove 24 on the first flap 3. This stitch simultaneously penetrates the garment piece under the first flap 3, the zipper, and the corresponding grooves on the base plate 1, completing the initial sewing of the right-side garment piece and the zipper.

[0036] Second sewing: Open the first flap 3, tidy up the sewn garment piece, then press the second flap 4 onto the garment piece, aligning the zipper with the second zipper head half-groove. Operate the sewing machine, with the needle sewing along the eighth sewing groove 26 on the second flap 4, and then along the seventh sewing groove 25 on the second flap 4, completing the sewing of the left placket piece and zipper. Throughout the sewing process, the zipper head is always confined within the complete groove formed by the first zipper head half-groove 15 and the second zipper head half-groove 16, ensuring the flatness of the sewn surface at the zipper head and avoiding interference between the needle and the zipper head.

[0037] This invention simplifies the complex process of positioning, fixing, and sewing multi-layered fabrics (trouser panels, placket facings, zippers) into a standardized procedure of "inserting material -> closing the flap -> sewing along the groove." This eliminates the need for repeated adjustments and alignment by workers, significantly reducing operational difficulty and training costs, enabling even beginners to quickly produce qualified products, while also greatly improving sewing efficiency.

[0038] Through the implementation of this embodiment, the present invention has achieved significant beneficial effects: the templated operation simplifies the complex manual positioning and sewing process into a few simple steps, greatly reducing the difficulty of operation and improving production efficiency; all sewing paths are guided by precise sewing grooves, ensuring the consistency and aesthetics of the product's sewing trajectory and effectively reducing the defect rate; the design of various anti-slip strips, auxiliary pressure plates, and zipper head semi-grooves completely solves the technical problems of material displacement and zipper head interference during the sewing process, ensuring the high quality of the final product.

[0039] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A zipper sewing template for trouser plackets, characterized in that, include: The base plate (1) has a zipper placement groove (5) and a first base plate sewing groove (6) and a fourth base plate sewing groove (9) are respectively provided on both sides of the zipper placement groove (5). A second base plate sewing groove (7) is provided below the fourth base plate sewing groove (9), and a third base plate sewing groove (8) is provided on the side of the first base plate sewing groove (6). The cover plate (2) is located on the base plate (1). The cover plate (2) is provided with a zipper tooth groove (10) corresponding to the zipper placement groove (5), a first sewing groove (11) corresponding to the first base plate sewing groove (6), a fourth sewing groove (14) corresponding to the fourth base plate sewing groove (9), a third sewing groove (13) corresponding to the third base plate sewing groove (8), and a second sewing groove (12) corresponding to the second base plate sewing groove (7). The first flap (3) is located on one side of the cover plate (2) and is placed on the cover plate (2) when in use. The first flap (3) is provided with a fifth sewing groove (23) and a sixth sewing groove (24) corresponding to the first sewing groove (11) and the second sewing groove (12). The second flap (4) is located on the other side of the cover plate (2) and is opposite to the first flap (3). When in use, it is placed on the cover plate (2). The second flap (4) is provided with a seventh sewing groove (25) and an eighth sewing groove (26) corresponding to the third sewing groove (13) and the fourth sewing groove (14). The bottom plate (1) and the cover plate (2) are connected on the same side by adhesive bonding.

2. The trouser placket zipper sewing template according to claim 1, characterized in that, Several auxiliary strips are provided on the upper surface of the base plate (1).

3. The trouser placket zipper sewing template according to claim 1, characterized in that, A first anti-slip strip (17) is provided on the upper surface of the base plate (1) and on the side near the first base plate sewing groove.

4. The trouser placket zipper sewing template according to claim 1, characterized in that, A second anti-slip strip (18) is provided on the upper surface of the cover plate (2) and on the side near the fourth sewing groove (14). A third anti-slip strip (19) is provided above the zipper tooth groove (10) and is perpendicular to the second anti-slip strip (18) and intersects with the second anti-slip strip (18). A fourth anti-slip strip (20) with the same shape as the second sewing groove (12) is provided on one side of the cover plate (2).

5. A trouser placket zipper sewing template according to claim 1, characterized in that, An auxiliary pressure plate (21) is provided on the upper surface of the cover plate (2). When in use, the auxiliary pressure plate (21) is pressed tightly against the side of the fourth sewing groove (14) on the cover plate (2) to press the garment piece tightly onto the zipper sewing position.

6. A trouser placket zipper sewing template according to claim 5, characterized in that, The auxiliary pressure plate (21) has a magnet groove (22) corresponding to the magnet sheet on the cover plate (2).

7. A trouser placket zipper sewing template according to claim 1, characterized in that, The fifth sewing groove (23) on the first flip plate (3) is provided with a first zipper head half groove (15) that limits the zipper head and makes the sewing surface flat.

8. A trouser placket zipper sewing template according to claim 7, characterized in that, A second zipper head half-groove (16) is provided between the seventh sewing groove (25) and the eighth sewing groove (26) on the second flip plate (4), and the first zipper head half-groove (15) and the second zipper head half-groove (16) are positioned corresponding to each other.

9. A trouser placket zipper sewing template according to claim 1, characterized in that, The base plate (1) is provided with machine mounting holes (27).

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