Mould clamp device for fitting seam allowance of western-style clothes by automatic template machine
By designing a mold fixture device for the bottom plate, interlayer plate, and top cover plate, combined with an arc-shaped sewing groove and a triangular trapezoidal support structure, the problem of uneven seams during the sewing of suit seams was solved. This improved the efficiency and quality of the sewing process, especially in the treatment of key parts such as arc-shaped and flat lapel seams.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN GUOJIN XIANGAN IND CO LTD
- Filing Date
- 2025-03-12
- Publication Date
- 2026-05-12
AI Technical Summary
Existing suit seam clamps lack effective support and guidance when dealing with curved seams, resulting in uneven seams, unnatural transition areas, and unstable clamp fixation, which affects sewing precision and quality, making it difficult to meet the high efficiency and high quality requirements of modern garment manufacturing.
An automatic template machine for fitting the seams of suits has been designed. It adopts a three-layer plate structure, including a bottom plate, a middle plate and a top cover plate. Combined with an arc-shaped sewing groove and a support structure, elastic elements and sponge strips are used to protect the fabric, providing three-dimensional support and friction to ensure that the seams are flat and beautiful.
It improves the efficiency and quality of suit seam stitching, ensures neat and beautiful seams, reduces reliance on the operator's skill level, and is applicable to the seam stitching of suits made of different fabrics, especially for key areas such as curved and lapel seams.
Smart Images

Figure CN224227397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment for garment manufacturing, and in particular to a mold clamping device for an automatic template machine to fit the hem of a suit. Background Technology
[0002] As people's living standards improve and their aesthetic demands rise, the requirements for the craftsmanship and quality of suits, as an important part of formal wear, are becoming increasingly stringent. In the suit-making process, the treatment of the seams is one of the key aspects affecting the overall appearance and wearing comfort of the suit. Seams refer to the parts of the garment where the edges are folded inward and sewn together. The treatment of seams, especially at the collar, cuffs, and notch, directly impacts the quality and aesthetics of the suit.
[0003] Traditional methods of sewing the edges of suit seams primarily rely on tailors manually guiding several pieces of fabric into a sewing machine and sewing along the edges. This method is not only inefficient but also prone to inconsistent sewing quality due to human error, especially when dealing with curved seams, where unevenness, wrinkles, or misalignment are more likely to occur. With the development of the garment manufacturing industry, some automated sewing equipment and auxiliary fixtures have appeared on the market, but these devices and fixtures still have many problems when dealing with suit seams, especially curved seams.
[0004] The existing suit seam clamps have the following main technical problems: they lack effective support and guidance for the curved seam, making it difficult to ensure the smoothness and beauty of the curved seam. Especially in the transition area, the seam is often not smooth or the fabric wrinkles due to the clamps not being precise enough. They are particularly limited in the treatment of key parts such as the lapel. The clamps are not stable enough and are prone to move during the sewing process, affecting the sewing accuracy.
[0005] Due to the aforementioned technical problems, the processing efficiency and quality of suit seam closures have not been fundamentally improved, failing to meet the demands of modern garment manufacturing for high-efficiency, high-quality, and standardized production. Therefore, there is an urgent need for an automatic template machine and mold clamping device for suit seam closures that can effectively solve these problems, thereby improving the efficiency and quality of suit seam closure sewing. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide an automatic template machine for fitting the seam of a suit, which is simple in structure, easy to operate, can accurately guide the seam of a suit edge, ensure sewing quality, and is applicable to different fabrics.
[0007] The technical solution adopted by this utility model to solve its technical problem is:
[0008] An automatic template machine for fitting the hem of a suit jacket using a mold clamping device includes:
[0009] The bottom plate has an arc-shaped sewing groove.
[0010] The sandwich panel is connected to the bottom plate at one end. The sandwich panel has an opening corresponding to the arc-shaped sewing groove, and the opening area is equipped with a support structure.
[0011] The upper cover plate is connected to the lower base plate at one end, and the upper cover plate has a notch corresponding to the arc-shaped sewing groove.
[0012] Preferably, the arc-shaped sewing groove includes two transition zones. The first transition zone has a curved structure, and the groove width gradually increases from the first transition zone to the second transition zone until it becomes a straight groove after the second transition zone.
[0013] Preferably, the lower base plate has first elastic elements on both sides of the sewing groove.
[0014] Preferably, a second elastic element is provided on the open side of the sandwich panel, and a third elastic element is provided on the notch side of the top cover plate.
[0015] Preferably, the support structure is a triangular trapezoidal structure with its height gradually transitioning from low to high.
[0016] Preferably, both the sandwich panel and the top cover are connected to the bottom plate via elastic connectors.
[0017] Preferably, the elastic connector is adhesive tape.
[0018] Preferably, the mold clamping device is used to assist in sewing the hem of the suit, and the support structure is used to pad the notch of the suit.
[0019] The beneficial effects of this utility model are:
[0020] This invention utilizes a three-layer structure design—a combination of a bottom plate, a sandwich plate, and a top cover plate—along with an arc-shaped sewing groove and a support structure. This effectively guides the sewing needle to move smoothly during the sewing of the suit's hem, ensuring neat and aesthetically pleasing stitches. Elastic elements at key locations protect the fabric from damage and increase friction, preventing slippage during sewing. A triangular trapezoidal support structure on the sandwich plate provides three-dimensional support for the suit's lapel, resolving the issue of an unnatural transition in the lapel area and resulting in a smooth, natural curve at the hem. This significantly improves the efficiency and quality of suit hem sewing and reduces reliance on the operator's skill level. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the mold clamping device for the automatic template machine to close the hem of a suit in Example 1;
[0022] Figure 2This is a diagram of the area where the automatic template machine and the mold clamp device for sewing the hem of a suit jacket are used in Example 1.
[0023] Reference numerals: 1. Bottom plate; 2. Sandwich panel; 3. Top cover plate; 4. Arc-shaped sewing groove; 5. Sponge strip; 6. Sponge block; 7. First transition zone; 8. Second transition zone; 9. Opening; 10. Notch. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, but these specific embodiments do not limit the scope of protection of the present invention in any way.
[0025] Example 1
[0026] See appendix Figure 1-2 An automatic template sewing machine for sewing the hem of a suit jacket, mainly used to assist in sewing the hem of a suit jacket. Figure 2 The heavy-line diagram area can precisely guide the seam stop, ensuring a smooth and aesthetically pleasing seam during sewing, thus improving the quality and efficiency of suit processing. This mold clamping device includes a lower base plate 1, a sandwich plate 2, an upper cover plate 3, an arc-shaped sewing groove 4, a sponge strip 5, and a triangular trapezoidal sponge block 6.
[0027] The bottom plate 1, serving as the foundation support structure of the entire device, is made of lightweight, high-strength material and possesses a certain degree of rigidity to ensure it is not easily deformed during sewing. An arc-shaped sewing groove 4 is cut into the bottom plate 1. The curvature of this groove precisely matches the standard curvature of the suit's edge, ensuring a neat and standardized edge line. The arc-shaped sewing groove 4 includes two transition zones. The first transition zone 7 is curved, and from the first transition zone 7 to the second transition zone 8, the width of the groove gradually increases until it transitions into a smooth straight groove. This design precisely guides the sewing needle to move smoothly in the transition area from the arc to the straight line, preventing uneven stitching or fabric wrinkling. Sponge strips 5 are provided on both sides of the arc-shaped sewing groove 4 on the bottom plate 1. These elastic strips protect the fabric from damage and increase friction with the fabric, preventing it from slipping during sewing.
[0028] One end of the interlayer panel 2 is bonded to the lower base plate 1 with adhesive tape, forming a flip-up structure. The interlayer panel 2 uses the same lightweight, high-strength material as the lower base plate 1, with a moderate thickness to ensure sufficient strength without increasing the overall weight. The interlayer panel 2 has openings 9 corresponding to the curved sewing grooves 4, allowing sewing needles to pass smoothly. A triangular trapezoidal sponge block 6 is placed in the area where the groove width gradually increases, corresponding to the first transition zone 7 and the second transition zone 8 of the lower base plate 1, to support the lapel. The height of this triangular trapezoidal sponge block 6 gradually transitions from low to high, adapting to the change in the width of the curved sewing groove 4, providing three-dimensional support for the lapel and solving the problem of unnatural transitions in traditional clamps when handling the lapel area. A sponge strip 5 is also provided on one side of the opening 9 of the interlayer panel 2, corresponding to the sponge strip 5 on the lower base plate 1, forming double protection for the fabric.
[0029] One end of the upper cover plate 3 is adhered to the lower base plate 1 with adhesive tape, and it is located above the interlayer plate 2, forming the uppermost layer of the device. The upper cover plate 3 is also made of lightweight, high-strength material with a smooth surface for easy operation. The upper cover plate 3 has a notch 10 corresponding to the arc-shaped sewing groove 4 to ensure that the sewing needle can pass through smoothly. A sponge strip 5 is also provided on one side of the notch 10, which works in conjunction with the sponge strips 5 on the lower base plate 1 and the interlayer plate 2 to form triple protection and fixation for the fabric.
[0030] The adhesive tape used at the bonding points has a certain degree of elasticity, allowing the top cover plate 3 and the interlayer plate 2 to be finely adjusted during the closing process to accommodate fabrics of different thicknesses. This flexible connection method enhances the applicability of the device, enabling it to handle various suit fabrics from light to heavy. The adhesive strength of the tape is moderate, ensuring stability during use while facilitating replacement or repair of device components when necessary.
[0031] The sponge strips 5 are all made of high-elasticity, wear-resistant, high-quality sponge material with moderate thickness, providing good resilience and durability. The width of the sponge strips 5 matches the width of the arc-shaped sewing grooves 4, ensuring effective fixation and protection of the fabric. The sponge strips 5 are fixed to the bottom plate 1, the interlayer plate 2, and the top cover plate 3 with special adhesive, ensuring a firm bond and preventing them from easily falling off.
[0032] The triangular trapezoidal sponge block 6 is one of the key components of this device. Made of moderately dense sponge material, it offers good support and elasticity. The shape of the triangular trapezoidal sponge block 6 precisely matches the gradually increasing width of the curved sewing groove 4, with a wider base and a narrower top, and a gradual transition in height. This design provides ideal three-dimensional support for the notch, resulting in a natural and smooth curve at the sewn edge, enhancing the overall quality and wearing comfort of the suit. The triangular trapezoidal sponge block 6 is fixed to the interlayer board 2 with special adhesive, ensuring precise positioning and perfect correspondence with the curved sewing groove 4.
[0033] The working principle and method of the above-mentioned automatic template machine for making a mold clamping device for the hem of a suit are as follows:
[0034] First, the operator flips open the top cover plate 3 and the interlayer plate 2 to expose the bottom plate 1. The suit fabric to be sewn is laid flat on the bottom plate 1, aligning the fabric's hem with the curved seam groove 4. When placing the fabric, pay attention to the right and wrong sides to ensure the hem is on the inside of the garment after sewing. For the lapel section, special attention is needed to accurately place it in the transition area of the curved seam groove 4, aligning the lapel with the triangular trapezoidal sponge block 6.
[0035] The second step involves the operator gently closing the interlayer plate 2 after confirming the fabric's accurate position. This allows the sponge strips 5 on the interlayer plate 2 and the lower base plate 1 to jointly secure the fabric. At this point, the opening 9 on the interlayer plate 2 should be precisely aligned with the arc-shaped sewing groove 4 on the lower base plate 1, and the triangular trapezoidal sponge block 6 on the interlayer plate 2 should be placed directly under the lapel, providing three-dimensional support for the lapel.
[0036] Third, the operator closes the top cover plate 3 to completely close the three layers. The notch 10 on the top cover plate 3 should be aligned with the openings 9 of the two layers below. The sponge strips 5 on the top cover plate 3 work together with the sponge strips 5 of the other two layers to firmly fix the fabric and prevent it from shifting during sewing. After the three layers are closed, the elasticity of the adhesive tape joints allows for fine-tuning according to the fabric thickness to ensure moderate clamping force, which can firmly fix the fabric without damaging it.
[0037] Fourthly, the operator places the closed mold clamping device on the automatic template machine, aligns it with the sewing needle position, and starts the automatic template machine. The sewing needle sews along the curved sewing groove 4. During the sewing process, the three-layer board structure works together to precisely guide the sewing needle. At the same time, the sponge strip 5 and the triangular trapezoidal sponge block 6 provide all-round protection and support for the fabric, ensuring that the seam is flat and beautiful. Especially in the transition area from curved to straight, the sewing needle can pass smoothly due to the three-dimensional support of the triangular trapezoidal sponge block 6, and the sewn edge has a natural and smooth curvature.
[0038] Finally, after sewing is completed, the operator stops the automatic template machine, removes the template clamping device, and takes out the suit fabric with the sewn-on seams. The sewing quality is checked to ensure the seams are smooth and aesthetically pleasing, the stitching is even, and there are no wrinkles or skewing.
[0039] The mold clamping device for the end of a suit jacket using this automatic template machine has the following technical advantages:
[0040] Firstly, through the designed arc-shaped sewing groove and its transition zone structure, combined with the auxiliary support of sponge strips, a smooth transition from the arc to the straight line of the suit seam is achieved, ensuring a beautiful and flat seam and significantly improving the processing quality of the suit seam. Especially for seam areas with large curvature or complex variations, this device can provide stable and reliable guidance, making the sewing effect more professional.
[0041] Secondly, the use of triangular trapezoidal foam blocks to provide three-dimensional support for the notch solves the problem of unnatural transitions in the notch area, resulting in a natural and smooth curve at the seam and improving the overall quality and wearing comfort of the suit. This design is particularly suitable for handling critical areas requiring delicate transitions, such as the notch of a suit, and can effectively avoid problems such as fabric wrinkling or uneven stitching common in traditional craftsmanship.
[0042] Finally, the overall structure is simple and reasonable, and the operation is convenient, which greatly improves the sewing efficiency of the hem of the suit, reduces the dependence on the technical level of the operator, and is conducive to the standardization and mass production of suits.
[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any innovative improvements or substitutions based on the present invention should fall within the scope of the claims of the present invention. Furthermore, the parameters, materials, and processes mentioned in the above embodiments are not unique. Without departing from the technical essence of the present invention, those skilled in the art can make various alternative choices, and these alternative solutions should also be considered to fall within the scope of protection of the present invention.
Claims
1. An automatic template machine for fitting the hem of a suit, characterized in that, include: The bottom plate has an arc-shaped sewing groove. The arc-shaped sewing groove includes two transition areas. The first transition area has a curved structure. The width of the groove gradually increases from the first transition area to the second transition area, until it becomes a straight groove after the second transition area. The sandwich panel is connected to the bottom plate at one end. The sandwich panel has an opening corresponding to the arc-shaped sewing groove. The opening area is equipped with a support structure. The support structure is a triangular trapezoidal structure with its height gradually transitioning from low to high. The upper cover plate is connected to the lower base plate at one end, and the upper cover plate has a notch corresponding to the arc-shaped sewing groove.
2. The automatic template machine for fitting the hem of a suit as described in claim 1, characterized in that, The lower base plate is provided with first elastic elements on both sides of the sewing groove.
3. The automatic template machine for fitting the hem of a suit as described in claim 2, characterized in that, The sandwich panel has a second elastic element on the open side and a third elastic element on the notch side of the top cover.
4. The automatic template machine for fitting the hem of a suit as described in claim 1, characterized in that, Both the sandwich panel and the top cover plate are connected to the bottom plate via elastic connectors.
5. The automatic template machine for fitting the hem of a suit as described in claim 4, characterized in that, The elastic connector is made of adhesive tape.
6. The automatic template machine for fitting the hem of a suit as described in claim 1, characterized in that, The mold clamping device is used to assist in sewing the hem of the suit, and the support structure is used to pad the notch of the suit.