Adaptive garment template for sewing machine

Abstract

The utility model relates to a self -adaptation dress template for sewing machine, including upper die frame, lower die frame and the mechanism of driving upper die frame lift and horizontal movement. The die frame is equipped with the top plate of cylinder drive, limiting mechanism (including wave pearl screw and tooth cooperation) and push mechanism, realizes the mechanical type locking and accurate regulation of clamping plate piece, adjusts the clamping material gap and clamping plate piece position through the lift and reciprocating mechanism, and the bending pressure material part ensures that cloth is uniformly stressed. The scheme solves spring fatigue failure, adapts to different fabric thickness, can be adjusted without disassembling the template, and improves sewing precision and efficiency.

Description

Technical Field

[0001] This utility model specifically relates to adaptive garment templates for sewing machines. Background Technology

[0002] Garment template forming machines are core equipment for achieving automated sewing in the garment manufacturing industry. They guide the sewing needle movement through a preset needle path template, improving sewing accuracy and production efficiency. Traditional garment sewing templates mostly use acrylic structures, requiring customization and replacement for different styles and needle paths. This not only wastes materials and increases production costs, but also leads to poor production continuity due to the time-consuming template replacement process, hindering mass production. To address these issues, adjustable garment template forming machines have emerged in the prior art. For example, patent document CN113502609B discloses a garment template forming machine and its control method, which uses dual motors to drive the push-pull box to move laterally and longitudinally, adjusting the spacing of the clamping plates to form the needle path, aiming to achieve "one template for multiple uses." However, this technology has the following technical problems in practical applications:

[0003] (a) Based on paragraphs 0007 and 0018 of the prior art specification and its appendices Figure 7 It is clearly visible that after the clamping plate slides within the needle groove, the cam knob needs to be manually rotated to rotate the pressure rod. The semi-circular protrusion on the outer wall of the pressure rod contacts the semi-circular groove of the pressure plate, squeezing the pressure plate. The pressure plate compresses the spring, and the spring, in turn, compresses the pressure plate. Therefore, the pressure plate, under the force of the spring, presses the clamping plate tightly, thus fixing it within the needle groove. It can be seen that this technique primarily uses the spring's extension and contraction to control the lifting and lowering of the pressure plate, thereby limiting the clamping plate's position. However, the spring force is not continuously stable; repeated compression and release easily lead to fatigue, causing the pressure plate to fail to press the clamping plate tightly, and the clamping plate is prone to slipping during sewing.

[0004] (ii) According to paragraph 0007 of the prior art specification, "one end of the upper template and the lower template are hinged." If it is necessary to clamp the fabric, the upper template and the lower template must be folded and closed. This structure not only makes it impossible to adjust the clamping gap between the upper template and the lower template, but also results in uneven clamping of the fabric in different areas. After clamping, the fabric is placed between the upper template and the lower template, which easily leads to uneven clamping. The clamping force on the inner side of the fabric is greater, making it prone to wrinkling, while the clamping force at the seam edge of the fabric is looser, causing the edge of the fabric to shift longitudinally during sewing, directly causing the seam to deviate from the needle path.

[0005] (iii) The universal template in this prior art must be removed from the sewing machine and installed on the template machine with the upper and lower templates laid flat on both sides for clamping adjustment. After adjustment, the template must be removed, folded, and reinstalled on the sewing machine again. This process involves at least four manual operations (removal, installation, re-removal, and re-installation). For complex needle paths (such as clamping plates with 10 columns), a single adjustment takes more than 20 minutes, which is much less efficient than traditional manual template replacement. It is impossible to achieve "automation to improve efficiency". Especially in mass production, the adjustment time may even exceed the sewing operation time, making it impractical.

[0006] Therefore, there is an urgent need for a garment template forming technology to solve the above-mentioned technical problems. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide an adaptive garment template for sewing machines that addresses the shortcomings of the prior art, thereby forming different needle paths for different garments, and solving the problems of failure of the clamping plates, uneven material clamping, and low adjustment efficiency of existing sewing templates.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an adaptive garment template for sewing machines, comprising two openable and closable template frames, each template frame having several sets of clamping plates linked together. The template frame includes a pressure plate and a top plate opposite to the pressure plate. A sliding groove structure is provided between the pressure plate and the top plate. Several sets of clamping plates are respectively inserted into the sliding groove structure. The top plate is linked to a first cylinder for driving the top plate to reciprocate toward the pressure plate. The body of the first cylinder is mounted on the pressure plate, and a limiting mechanism is installed on the pressure plate. When the first cylinder drives the top plate to move away from the pressure plate, the limiting mechanism separates from the several sets of clamping plates, allowing the several sets of clamping plates to slide within the sliding groove structure. When the first cylinder drives the top plate to move closer to the pressure plate, the limiting mechanism links with the several sets of clamping plates and fixes the several sets of clamping plates within the sliding groove structure.

[0009] Using the above technical solution, the needle path adjustment method for the clamping plates in each set of mold frames is as follows: When the first cylinder drives the top plate to move away from the pressure plate, the limiting mechanism separates from the clamping plates, and each clamping plate can slide freely along the slide groove to adjust its position; after each clamping plate is adjusted to its position according to the needle path, the first cylinder drives the top plate to move closer to the pressure plate. The top plate triggers the limiting mechanism through mechanical linkage, causing the limiting mechanism to lock the clamping plates and fix them in the slide groove structure, thereby achieving stable and unchanged position of the clamping plates during sewing. In this solution, the first cylinder drives the top plate to link with the limiting mechanism, replacing "spring elastic compression" with "mechanical locking," solving the problem of "fixation failure due to spring fatigue" in the existing technology, ensuring that the clamping plates do not shift during high-frequency sewing operations, and improving sewing accuracy.

[0010] The aforementioned adaptive garment template for sewing machines can be further configured as follows: the limiting mechanism includes several sets of adjusting components, the pressure plate is provided with a set of internal threaded connection holes for each set of clamping plates, each set of adjusting components is threadedly connected to a set of internal threaded connection holes, the internal threaded connection holes are distributed on the side of the slide structure and each set of internal threaded connection holes is connected to the slide structure.

[0011] By employing the above technical solution, the lower end face of the adjusting component (which engages with the threaded connection hole on the side of the pressure plate) is precisely pressed against the clamping plate (when the pressure plate and top plate are in a closed state). This overcomes machining and assembly tolerances (such as deviations in the groove depth and errors in the clamping plate diameter), ensuring that the lower end of the adjusting component can stably press against the clamping plate. During subsequent adjustment of the needle path, the adjusting component normally requires no operation. Only the first cylinder drives the top plate away from the pressure plate, allowing the clamping plate to slide freely along the groove to adjust the needle path. After adjustment, the top plate closes. At this point, the adjusting component, due to the initial pre-tightening during assembly, reliably presses against the clamping plate. Because the adjusting component is threadedly connected to the threaded connection hole, it will not move up and down or deform, thus ensuring the stability of the clamping plate position during sewing. Compared with existing technologies, this solution is more convenient to operate, eliminating the need for frequent manual control of the adjusting components to adjust the needle path of the clamping plate. By extending and retracting the output rod of the first cylinder, the closing of the pressure plate and the top plate is controlled. In conjunction with the adjusting components, not only is it convenient to adjust the needle path of the clamping plate, but the position of the clamping plate can also remain stable after adjustment.

[0012] The aforementioned adaptive garment template for sewing machines can be further configured such that: the end of the adjusting member facing the slide structure is provided with a steel ball, the adjusting member and the steel ball form a ball screw, and several sets of upper teeth are evenly distributed on the end face of the clamping plate facing the steel ball.

[0013] Using the above technical solution, the triangular teeth and steel balls form a "concave-convex fit," which, compared to a smooth contact surface, provides greater static friction, effectively resisting lateral vibrations caused by the high-speed movement of the needle during sewing and preventing thread misalignment due to slight displacement of the clamping plate. The ball screw is existing technology, typically containing a spring (the spring is located inside the ball screw, with its lower end pressing against the steel ball). The steel ball is pressed against the clamping plate by the spring's push. The spring in the ball screw further eliminates the influence of "assembly tolerances." During manual rotation of the adjustment mechanism, the steel ball automatically adapts through slight spring compression, facilitating manual adjustment. Furthermore, the spring's elastic buffering effect absorbs instantaneous impact forces during sewing (such as the reaction force when the needle pierces the fabric), preventing wear on the teeth or steel balls caused by rigid contact.

[0014] The aforementioned adaptive garment template for sewing machines can be further configured such that: the end of the adjusting member away from the clamping plate extends into an internal threaded connection hole, and the end of the adjusting member away from the clamping plate is connected to a stop nut, the outer diameter of which is larger than the inner diameter of the internal threaded connection hole.

[0015] Using the above technical solution, after the adjustment component is adjusted, tighten the stop nut to ensure that the adjustment component is stably held in the internal threaded connection hole and will not move up and down.

[0016] The aforementioned adaptive garment template for sewing machines can be further configured such that: a pushing mechanism is also installed on the pressure plate, the pushing mechanism includes a second cylinder and a push plate linked to the output rod of the second cylinder, the body of the second cylinder is fixed on the pressure plate, each set of clamping plates is connected to a set of push rods, and the push plate is distributed between the pressure plate and several sets of push rods.

[0017] Using the above technical solution, when it is necessary to adjust the needle path of the clamping plates, after the first cylinder drives the top plate to move away from the pressure plate and the limiting mechanism separates from the clamping plates, the second cylinder in the pushing mechanism drives the push plate to move. The push plate simultaneously pushes the entire row of push rods, thereby causing the entire row of clamping plates to slide outward along the slide groove structure, increasing the length of the clamping plates exposed in the slide groove structure and reserving a longer adjustment distance. After the clamping plates are pushed out, the second cylinder drives the push plate back to the initial position (i.e., automatic reset). Then, the position of each clamping plate is adjusted until the entire row of clamping plates forms a needle path. Then, the first cylinder drives the top plate to move closer to the pressure plate, and the limiting mechanism locks the clamping plates, thus completing the entire clamping plate position adjustment process.

[0018] The aforementioned adaptive garment template for sewing machines can be further configured as follows: the slide structure has a set of strip holes corresponding to each set of clamping plates, and several sets of strip holes are arranged sequentially on the end face of the top plate facing the pressure plate. The clamping plate includes a lower pressure plate that is clearance-fitted with the strip holes. The end of the lower pressure plate is provided with a pressing part that extends out of the strip holes and is bent towards another set of mold frames. The clamping plate also includes an upper pressure plate that is fixedly connected to the lower pressure plate. Several sets of upper teeth are evenly distributed on the upper pressure plate. The slide structure also includes a receiving groove for accommodating several sets of upper pressure plates. The receiving groove is distributed on the end face of the pressure plate facing the top plate.

[0019] Using the above technical solution, each set of clamping plates corresponds to an independent strip hole, ensuring that the adjustment of a single clamping plate does not interfere with each other. The position can be adjusted individually according to the needle path requirements to meet complex sewing patterns. By setting the clamping plates as fixedly connected upper and lower pressure plates, the structural strength of the clamping plates is enhanced, allowing the two pressure points at the ends of the upper and lower rows of clamping plates to more firmly press the fabric when the two mold frames are closed. The pressure points are bent towards the adjacent mold frame, which avoids gap problems caused by the thickness of the "top plate" and facilitates the pressure points clamping the fabric along the needle path.

[0020] The aforementioned adaptive garment template for sewing machines can be further configured such that: the pressure plate has a first clearance hole corresponding to the output rod of the first cylinder, and the output rod of the first cylinder passes through the first clearance hole until it is linked with the top plate.

[0021] Using the above technical solution, the first cylinder can be directly installed on the pressure plate. The output end of the first cylinder is linked with the top plate through the first clearance hole. At the same time, the first clearance hole guides the movement of the output rod of the first cylinder, improving the movement stability of the top plate.

[0022] The aforementioned adaptive garment template for sewing machines can be further configured as follows: two openable mold frames include an upper mold frame and a lower mold frame. A first lifting mechanism for driving the upper mold frame to reciprocate vertically and a first reciprocating mechanism for driving the upper mold frame to reciprocate horizontally are provided between the upper and lower mold frames. The first lifting mechanism includes a first support frame and a third cylinder mounted on the first support frame. The output rod of the third cylinder is linked to the upper mold frame. The upper mold frame is linked to a first slider, which is slidably engaged with a first slide rail, which is fixed to the first support frame. The first reciprocating mechanism includes a fourth cylinder mounted on the lower mold frame. The output rod of the fourth cylinder is linked to the first support frame. The first support frame is also linked to a second slider, which is slidably engaged with a second slide rail. The second slide rail is perpendicular to the first slide rail and is fixed to the lower mold frame.

[0023] Using the above technical solution, when adjusting the two rows of clamping plates on the upper and lower mold frames, the first reciprocating mechanism pushes the upper mold frame to move laterally until the ends of the two rows of clamping plates on the two mold frames are aligned. The top plate and pressure plate on each mold frame separate, allowing simultaneous adjustment of the two rows of clamping plates until they align with the needle path. Then, the top plate and pressure plate on each mold frame close together, and the two rows of clamping plates are fixed to the slide groove structure. Next, the first reciprocating mechanism moves the upper mold frame laterally in the opposite direction until one row of clamping plates on the lower mold frame is exposed, at which point the fabric can be placed. The first reciprocating mechanism then moves the upper mold frame laterally again until the clamping plates on the upper mold frame correspond to the clamping plates on the lower mold frame. The first lifting mechanism then moves the entire upper mold frame downwards until the two rows of clamping plates clamp the fabric.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the upper mold frame structure according to an embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of the lower mold frame structure according to an embodiment of the present utility model;

[0029] Figure 5 This is an exploded view of the upper mold frame according to an embodiment of the present invention;

[0030] Figure 6 This is an exploded view of the lower mold frame according to an embodiment of the present invention;

[0031] Figure 7 for Figure 1 Enlarged view of a portion of point A in the middle;

[0032] Figure 8 This is a schematic diagram of the first adjusting member according to an embodiment of the present utility model;

[0033] Figure 9 This is a schematic diagram of the structure of the first and second clamping plates in an embodiment of the present invention.

[0034] Label annotations: Upper mold frame 1, Lower mold frame 2; First lifting mechanism 3, First support frame 301, First slider 302, Third cylinder 303; First reciprocating mechanism 4, Fourth cylinder 401, Second slider 402; First clamping plate 5, Upper tooth 501, First push rod 502, First lower pressure plate 503, First upper pressure plate 504, First pressing part 505; Upper pressure plate 6, First internal threaded connection hole 601, First clearance hole 602; Upper top plate 7; First adjusting component 8, First steel ball 801; First sliding groove structure 9, First strip hole 901, First... Receiving groove 902; First stop nut 10, second cylinder 11, first push plate 12, first cylinder 13; second clamping plate 14, lower tooth 1401, second push rod 1402, second lower pressure plate 1403, second pressing part 1404, second upper pressure plate 1405; lower pressure plate 15, second internal threaded connection hole 1501, second clearance hole 1502; lower top plate 16; second sliding groove structure 17, second strip hole 1701, second receiving groove 1702; sixth cylinder 18; second adjusting component 19, second push plate 20, fifth cylinder 21. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figures 1 to 9 The adaptive garment template for sewing machines shown includes an upper mold frame 1 and a lower mold frame 2. A first lifting mechanism 3 for driving the upper mold frame 1 to reciprocate vertically and a first reciprocating mechanism 4 for driving the upper mold frame 1 to reciprocate horizontally are provided between the upper mold frame 1 and the lower mold frame 2.

[0037] The specific structure of the upper mold frame 1 is as follows:

[0038] The upper mold frame 1 is linked with several sets of first clamping plates 5. The upper mold frame 1 includes an upper pressure plate 6 and an upper top plate 7 opposite to the upper pressure plate 6. A first sliding groove structure 9 is provided between the upper pressure plate 6 and the upper top plate 7. Several sets of first clamping plates 5 are respectively inserted into the first sliding groove structure 9. The upper top plate 7 is linked with a first cylinder 13 for driving the upper top plate 7 to reciprocate towards the upper pressure plate 6. The body of the first cylinder 13 is mounted on the upper pressure plate 6. A first limiting mechanism is installed on the upper pressure plate 6. When the first cylinder 13 drives the upper top plate 7 to move away from the upper pressure plate 6, the first limiting mechanism separates from the several sets of first clamping plates 5, and the several sets of first clamping plates 5 can slide in the first sliding groove structure 9. When the first cylinder 13 drives the upper top plate 7 to move towards the upper pressure plate 6, the first limiting mechanism is linked with the several sets of first clamping plates 5 and fixes the several sets of first clamping plates 5 in the first sliding groove structure 9.

[0039] The needle path adjustment method for the first clamping plate 5 in the upper mold frame 1 is as follows: When the first cylinder 13 drives the upper top plate 7 to move away from the upper pressure plate 6, the first limiting mechanism separates from the first clamping plate 5, and each first clamping plate 5 can slide freely along the slide groove to adjust its position; after each first clamping plate 5 is adjusted to its position according to the needle path, the first cylinder 13 drives the upper top plate 7 to move closer to the upper pressure plate 6. The upper top plate 7 triggers the first limiting mechanism through mechanical linkage, so that the first limiting mechanism locks the first clamping plate 5, fixing the first clamping plate 5 in the first slide groove structure 9, thereby achieving stable and unchanged position of the first clamping plate 5 during the sewing process. In this solution, the first cylinder 13 drives the upper top plate 7 to link with the first limiting mechanism, replacing the "spring elastic compression" with "mechanical locking", solving the problem of "fixation failure due to spring fatigue" in the prior art, ensuring that the first clamping plate 5 has no displacement in high-frequency sewing operations, and improving sewing accuracy.

[0040] The first limiting mechanism includes several sets of first adjusting members 8. The upper pressure plate 6 is provided with a set of first internal threaded connection holes 601 for each set of first clamping plates 5. Each set of first adjusting members 8 is threadedly connected to a set of first internal threaded connection holes 601. The first internal threaded connection holes 601 are distributed on the side of the first sliding groove structure 9 and each set of first internal threaded connection holes 601 is connected to the first sliding groove structure 9.

[0041] By rotating the first adjusting component 8 (which is threaded into the first internal threaded connection hole 601 on the side of the upper pressure plate 6), the lower end face of the first adjusting component 8 is precisely pressed against the first clamping plate 5 (when the upper pressure plate 6 and the upper top plate 7 are in a closed state). This overcomes machining and assembly tolerances (such as deviations in the groove depth and diameter errors of the first clamping plate 5), ensuring that the lower end of the first adjusting component 8 can stably press against the first clamping plate 5. During subsequent adjustment of the needle path, under normal circumstances, the first adjusting component 8 does not need to be operated. The first cylinder 13 drives the upper top plate 7 away from the upper pressure plate 6, allowing the first clamping plate 5 to slide freely along the groove to adjust the needle path. After adjustment, the upper top plate 7 is closed. At this time, the first adjusting component 8 has reliably pressed against the first clamping plate 5 due to the pre-tightening during the initial assembly. Since the first adjusting component 8 is threadedly connected to the first internal threaded connection hole 601, the first adjusting component 8 will not move up and down or deform, thus achieving stability of the position of the first clamping plate 5 during sewing. Compared with the existing technology, this solution is more convenient to operate. It does not require frequent manual control of the first adjusting member 8 to adjust the needle path of the first clamping plate 5. By extending and retracting the output rod of the first cylinder 13, the closing of the upper pressure plate 6 and the upper top plate 7 is controlled. In conjunction with the first adjusting member 8, it is not only convenient to adjust the needle path of the first clamping plate 5, but also the position of the first clamping plate 5 can be kept stable after adjustment.

[0042] The first adjusting member 8 has a first steel ball 801 at its end facing the first sliding groove structure 9. The first adjusting member 8 and the first steel ball 801 form a ball screw. Several sets of upper teeth 501 are evenly distributed on the end face of the first clamping plate 5 facing the first steel ball 801. The triangular teeth and the first steel ball 801 form a "concave-convex fit". Compared with a smooth contact surface, the static friction is large, which effectively resists the lateral vibration caused by the high-speed movement of the needle during sewing and prevents the sewing thread from shifting due to slight displacement of the first clamping plate 5. The ball screw is an existing technology, and it usually contains a spring (the spring is set inside the ball screw, and the lower end of the spring presses against the first steel ball 801). The first steel ball 801 is pressed against the first clamping plate 5 under the push of the spring. The spring of the ball screw further eliminates the influence of "assembly tolerance". During the manual rotation of the first adjusting part 8, the first steel ball 801 automatically adapts through the slight compression of the spring, which makes it convenient for the manual rotation of the first adjusting part 8. Furthermore, the elastic buffering effect of the spring can absorb the instantaneous impact force during sewing (such as the reaction force when the needle pierces the fabric), and avoid wear of the teeth or the first steel ball 801 caused by rigid contact.

[0043] The first adjusting member 8 extends from the end away from the first clamping plate 5 to form a first internal threaded connection hole 601, and the end of the first adjusting member 8 away from the first clamping plate 5 is connected to a first stop nut 10, the outer diameter of the first stop nut 10 being larger than the inner diameter of the first internal threaded connection hole 601.

[0044] After the first adjusting component 8 is adjusted, tighten the first stop nut 10 to ensure that the first adjusting component 8 is stably kept in the first internal threaded connection hole 601 and will not move up and down.

[0045] The upper pressure plate 6 is also equipped with a first pushing mechanism. The first pushing mechanism includes a second cylinder 11 and a first push plate 12 that is linked to the output rod of the second cylinder 11. The body of the second cylinder 11 is fixed on the upper pressure plate 6. Each set of first clamping plates 5 is connected to a set of first push rods 502. The first push plate 12 is distributed between the upper pressure plate 6 and several sets of first push rods 502.

[0046] When the needle path of the first clamping plate 5 needs to be adjusted, after the first cylinder 13 drives the upper top plate 7 to move away from the upper pressure plate 6 and the first limiting mechanism separates from the first clamping plate 5, the second cylinder 11 in the first pushing mechanism drives the first pushing plate 12 to move. The first pushing plate 12 will simultaneously push the entire row of first push rods 502, thereby driving the entire row of first clamping plates 5 to slide outward along the first sliding groove structure 9, increasing the length of the first clamping plate 5 exposed in the first sliding groove structure 9, leaving a longer adjustment distance. After the first clamping plate 5 is pushed out, the second cylinder 11 drives the first pushing plate 12 to return to the initial position (i.e., automatic reset). Then, the position of each first clamping plate 5 is adjusted until the entire row of first clamping plates 5 forms a needle path. Then, the first cylinder 13 drives the upper top plate 7 to move closer to the upper pressure plate 6, and the first limiting mechanism locks the first clamping plate 5, thus completing the entire first clamping plate 5 position adjustment process.

[0047] The first sliding groove structure 9 is provided with a set of first strip holes 901 for each set of first clamping plates 5. Several sets of first strip holes 901 are arranged sequentially on the end face of the upper top plate 7 facing the upper pressure plate 6. The first clamping plate 5 includes a first lower pressure plate 503 that is clearance-fitted with the first strip hole 901. The end of the first lower pressure plate 503 is provided with a first pressing part 505 that extends out of the first strip hole 901 and is bent towards the lower mold frame 2. The first clamping plate 5 also includes a first upper pressure plate 504 that is fixedly connected to the first lower pressure plate 503. Several sets of upper teeth 501 are evenly distributed on the first upper pressure plate 504. The first sliding groove structure 9 also includes a first receiving groove 902 for accommodating several sets of first upper pressure plates 504. The first receiving groove 902 is distributed on the end face of the upper pressure plate 6 facing the upper top plate 7.

[0048] Each set of first clamping plates 5 corresponds to an independent first strip hole 901, ensuring that the adjustment of a single first clamping plate 5 does not interfere with each other. The position can be adjusted individually according to the needle path requirements to meet complex sewing patterns. By setting the first clamping plates 5 as fixedly connected first upper pressure plate 504 and first lower pressure plate 503, the structural strength of the first clamping plates 5 is enhanced, so that when the two upper mold frames 1 and lower mold frame 2 are closed, the two first pressure parts 505 at the ends of the upper and lower rows of first clamping plates 5 more firmly press the fabric. The first pressure parts 505 are bent towards the lower mold frame 2, which avoids gap problems caused by the thickness of the "upper top plate 7" and facilitates the first pressure parts 505 clamping the fabric at the needle path.

[0049] The upper pressure plate 6 is provided with a first clearance hole 602 corresponding to the output rod of the first cylinder 13. The output rod of the first cylinder 13 passes through the first clearance hole 602 until it is linked with the upper top plate 7.

[0050] The first cylinder 13 can be directly installed on the upper pressure plate 6. The output end of the first cylinder 13 is linked with the upper top plate 7 through the first clearance hole 602. At the same time, the first clearance hole 602 guides the movement of the output rod of the first cylinder 13, improving the movement stability of the upper top plate 7.

[0051] The specific structure of the lower mold frame 2 is as follows:

[0052] The lower mold frame 2 is linked with several sets of second clamping plates 14. The lower mold frame 2 includes a lower pressure plate 15 and a lower top plate 16 opposite to the lower pressure plate 15. A second sliding groove structure 17 is provided between the lower pressure plate 15 and the lower top plate 16. The several sets of second clamping plates 14 are respectively inserted into the second sliding groove structure 17. The lower top plate 16 is linked with a sixth cylinder 18 for driving the lower top plate 16 to reciprocate toward the lower pressure plate 15. The body of the sixth cylinder 18 is mounted on the lower pressure plate 15. A second limiting mechanism is installed; when the sixth cylinder 18 drives the lower top plate 16 to move away from the lower pressure plate 15, the second limiting mechanism separates from the several sets of second clamping plates 14, and the several sets of second clamping plates 14 can slide in the second sliding groove structure 17; when the sixth cylinder 18 drives the lower top plate 16 to move closer to the lower pressure plate 15, the second limiting mechanism is linked with the several sets of second clamping plates 14 and fixes the several sets of second clamping plates 14 in the second sliding groove structure 17.

[0053] The needle path adjustment method of the second clamping plate 14 in the lower mold frame 2 is as follows: When the sixth cylinder 18 drives the lower top plate 16 to move away from the lower pressure plate 15, the second limiting mechanism separates from the second clamping plate 14, and each second clamping plate 14 can slide freely along the slide groove to adjust its position; after each second clamping plate 14 is adjusted to the position according to the needle path, the sixth cylinder 18 drives the lower top plate 16 to move closer to the lower pressure plate 15, and the lower top plate 16 triggers the second limiting mechanism through mechanical linkage, so that the second limiting mechanism locks the second clamping plate 14 and fixes the second clamping plate 14 in the second slide groove structure 17, thereby achieving the stable position of the second clamping plate 14 during the sewing process. In this solution, the sixth cylinder 18 drives the lower top plate 16 to work in conjunction with the second limiting mechanism, replacing the "spring elastic clamping" with "mechanical locking", which solves the problem of "fixation failure due to spring fatigue" in the prior art, ensuring that the second clamping plate 14 has no displacement in high-frequency sewing operations and improving sewing accuracy.

[0054] The second limiting mechanism includes several sets of second adjusting members 19. The lower pressure plate 15 is provided with a set of second internal threaded connection holes 1501 for each set of second clamping plates 14. Each set of second adjusting members 19 is threadedly connected to a set of second internal threaded connection holes 1501. The second internal threaded connection holes 1501 are distributed on the side of the second slide groove structure 17 and each set of second internal threaded connection holes 1501 is connected to the second slide groove structure 17.

[0055] By rotating the second adjusting component 19 (which is threaded into the second internal threaded connection hole 1501 on the side of the lower pressure plate 15), the lower end face of the second adjusting component 19 is precisely pressed against the second clamping plate 14 (when the lower pressure plate 15 and the lower top plate 16 are in a closed state). This overcomes machining and assembly tolerances (such as deviations in the groove depth and diameter errors of the second clamping plate 14), ensuring that the lower end of the second adjusting component 19 can stably press against the second clamping plate 14. During subsequent adjustment of the needle path, under normal circumstances, the second adjusting component 19 does not need to be operated. Only the sixth cylinder 18 drives the lower top plate 16 away from the lower pressure plate 15, allowing the second clamping plate 14 to slide freely along the groove to adjust the needle path. After adjustment, the lower top plate 16 is closed. At this time, the second adjusting component 19 has reliably pressed against the second clamping plate 14 due to the pre-tightening during the initial assembly. Since the second adjusting component 19 and the second internal threaded connection hole 1501 are threadedly connected, the second adjusting component 19 will not move up and down or deform, thus achieving stability of the position of the second clamping plate 14 during sewing. Compared with the existing technology, this solution is more convenient to operate. It does not require frequent manual control of the second adjusting member 19 to adjust the needle path of the second clamping plate 14. By extending and retracting the output rod of the sixth cylinder 18, the closing of the lower pressure plate 15 and the lower top plate 16 is controlled. In conjunction with the second adjusting member 19, it is not only convenient to adjust the needle path of the second clamping plate 14, but also the position of the second clamping plate 14 can be kept stable after adjustment.

[0056] The second adjusting member 19 is provided with a second steel ball at the end facing the second sliding groove structure 17. The second adjusting member 19 and the second steel ball form a ball screw. Several sets of lower teeth 1401 are evenly distributed on the end face of the second clamping plate 14 facing the second steel ball.

[0057] The triangular teeth and the second steel ball form a "convex-concave fit," which, compared to a smooth contact surface, provides greater static friction, effectively resisting lateral vibrations caused by the high-speed movement of the needle during sewing and preventing thread deviation caused by slight displacement of the second clamping plate 14. The ball screw is existing technology, typically containing a spring (the spring is located inside the ball screw, with its lower end pressing against the second steel ball). The second steel ball is pressed against the second clamping plate 14 by the spring's push. The spring in the ball screw further eliminates the influence of "assembly tolerances." During manual rotation of the second adjusting component 19, the second steel ball automatically adapts through slight spring compression, facilitating manual rotation of the second adjusting component 19. Furthermore, the spring's elastic buffering effect absorbs instantaneous impact forces during sewing (such as the reaction force when the needle pierces the fabric), preventing wear on the teeth or the second steel ball caused by rigid contact.

[0058] The end of the second adjusting member 19 away from the second clamping plate 14 extends into a second internal threaded connection hole 1501, and the end of the second adjusting member 19 away from the second clamping plate 14 is connected to a second stop nut, the outer diameter of the second stop nut being larger than the inner diameter of the second internal threaded connection hole 1501.

[0059] After the second adjusting component 19 is adjusted, tighten the second stop nut to ensure that the second adjusting component 19 is stably held in the second internal threaded connection hole 1501 and will not move up and down.

[0060] A second pushing mechanism is also installed on the lower pressure plate 15. The second pushing mechanism includes a fifth cylinder 21 and a second push plate 20 that is linked to the output rod of the fifth cylinder 21. The body of the fifth cylinder 21 is fixed on the lower pressure plate 15. Each set of second clamping plates 14 is connected to a set of second push rods 1402. The second push plate 20 is distributed between the lower pressure plate 15 and several sets of second push rods 1402.

[0061] When the needle path of the second clamping plate 14 needs to be adjusted, the top plate 16 moves away from the lower pressure plate 15 under the drive of the sixth cylinder 18. After the second limiting mechanism separates from the second clamping plate 14, the fifth cylinder 21 in the second pushing mechanism drives the second pushing plate 20 to move. The second pushing plate 20 simultaneously pushes the entire row of second push rods 1402, thereby causing the entire row of second clamping plates 14 to slide outward along the second sliding groove structure 17, increasing the length of the second clamping plate 14 exposed in the second sliding groove structure 17, thus reserving a longer adjustment distance. After the second clamping plate 14 is pushed out, the fifth cylinder 21 drives the second pushing plate 20 back to the initial position (i.e., automatic reset). Then, the position of each second clamping plate 14 is adjusted until the entire row of second clamping plates 14 forms a needle path. Then, the sixth cylinder 18 drives the top plate 16 to move closer to the lower pressure plate 15, and the second limiting mechanism locks the second clamping plate 14, thus completing the entire second clamping plate 14 position adjustment process.

[0062] The second slide structure 17 is provided with a set of second strip holes 1701 for each set of second clamping plates 14. Several sets of second strip holes 1701 are arranged sequentially on the end face of the lower top plate 16 facing the lower pressure plate 15. The second clamping plate 14 includes a second lower pressure plate 1403 that is clearance-fitted with the second strip holes 1701. The end of the second lower pressure plate 1403 is provided with a second pressing part 1404 that extends out of the second strip holes 1701 and is bent towards the upper mold frame 1. The second clamping plate 14 also includes a second upper pressure plate 1405 that is fixedly connected to the second lower pressure plate 1403. Several sets of lower teeth 1401 are evenly distributed on the second upper pressure plate 1405. The second slide structure 17 also includes a second receiving groove 1702 for accommodating several sets of second upper pressure plates 1405. The second receiving groove 1702 is distributed on the end face of the lower pressure plate 15 facing the lower top plate 16.

[0063] Each set of second clamping plates 14 corresponds to an independent second strip hole 1701, ensuring that the adjustment of a single second clamping plate 14 does not interfere with each other. The position can be adjusted individually according to the needle path requirements to meet complex sewing patterns. By setting the second clamping plates 14 as fixedly connected second upper pressure plates 1405 and second lower pressure plates 1403, the structural strength of the second clamping plates 14 is enhanced. This allows the two second pressure parts 1404 at the ends of the upper and lower rows of second clamping plates 14 to more firmly press the fabric when the upper mold frame 1 and lower mold frame 2 are closed (this closure does not mean the two mold frames are tightly pressed together, but only that the fabric is clamped). The second pressure parts 1404 are bent towards the upper mold frame 1, which avoids gap problems caused by the thickness of the "lower top plate 16" and facilitates the second pressure parts 1404 clamping the fabric at the needle path.

[0064] The lower pressure plate 15 is provided with a second clearance hole 1502 corresponding to the output rod of the sixth cylinder 18. The output rod of the sixth cylinder 18 passes through the second clearance hole 1502 until it is linked with the lower top plate 16.

[0065] The sixth cylinder 18 can be directly installed on the lower pressure plate 15. The output end of the sixth cylinder 18 is linked with the lower top plate 16 through the second clearance hole 1502. At the same time, the second clearance hole 1502 guides the movement of the output rod of the sixth cylinder 18, improving the movement stability of the lower top plate 16.

[0066] The first lifting mechanism 3 includes a first support frame 301 and a third cylinder 303 mounted on the first support frame 301. The output rod of the third cylinder 303 is linked to the upper pressure plate 6 in the upper mold frame 1. The upper pressure plate 6 is also linked to a first slider 302. The first slider 302 is slidably engaged with a first slide rail, which is fixed to the first support frame 301. The first reciprocating mechanism 4 includes a fourth cylinder 401 mounted on a lower pressure plate 15 (an extension plate can be fixedly mounted on the end of the lower pressure plate 15, or the end of the lower pressure plate 15 can be directly extended to achieve the installation of the fourth cylinder 401 on the lower pressure plate 15). The output rod of the fourth cylinder 401 is linked to the first support frame 301. The first support frame 301 is also linked to a second slider 402. The second slider 402 is slidably engaged with a second slide rail. The second slide rail is perpendicular to the first slide rail and is fixed to the lower pressure plate 15.

[0067] When the needle path needs adjustment, the first reciprocating mechanism 4 pushes the upper mold frame 1 to move laterally until the ends of the entire row of first clamping plates 5 and the entire row of second clamping plates 14 on both mold frames are aligned. The top plates and pressure plates on the two mold frames separate, allowing the two rows of clamping plates to move within their corresponding slots until they align with the needle path. Then, the top plates and pressure plates on each mold frame close together, and the two rows of clamping plates remain fixed in their respective sliding groove structures. After the needle path adjustment is complete, the first reciprocating mechanism 4 drives the upper mold frame 1 to move laterally in the opposite direction until the entire row of second clamping plates 14 on the lower mold frame 2 is exposed, facilitating fabric placement. After the fabric is placed, the first reciprocating mechanism 4 then drives the upper mold frame 1 to return to its original position laterally until the clamping plates on the upper mold frame 1 correspond to the clamping plates on the lower mold frame 2. The first lifting mechanism 3 then drives the entire upper mold frame 1 to move downwards until the two rows of clamping plates clamp the fabric. The third cylinder 303 in the first lifting mechanism 3 drives the upper mold frame 1 to move vertically. The clamping gap between the first clamping plate 5 and the second clamping plate 14 (the upper top plate 7 on the upper mold frame 1 and the lower top plate 16 on the lower mold frame 2 will also clamp the fabric) can be adjusted in real time according to the fabric thickness. This completely replaces the fixed gap of the traditional hinged folding structure, which not only adapts to a wide range of fabric thicknesses, but also ensures uniform clamping force in all places.

[0068] This embodiment has the following technical effects:

[0069] First, this embodiment solves the fatigue failure problem of the spring-pressing method in the prior art by using a mechanical locking structure in which "the first cylinder 13 drives the top plate and the limiting mechanism to work together". When the top plate is closed, the adjusting component in the limiting mechanism (threaded to the pressure plate) forms a rigid concave-convex fit with the teeth 501 on the clamping plate through the steel ball of the ball screw. The threaded adjusting component can eliminate machining tolerances through pre-tightening, and the stop nut further prevents the adjusting component from moving around, ensuring stable and durable locking force. The spring in the ball screw only plays a buffering and tolerance compensation role, rather than the main locking force, avoiding the elastic force attenuation caused by repeated spring extension and contraction.

[0070] Secondly, this embodiment uses a first lifting mechanism 3 on the upper mold frame 1 and the lower mold frame 2 to adjust the clamping gap according to the actual situation, so as to achieve uniform pressing of the fabric. The third cylinder 303 in the first lifting mechanism 3 drives the upper mold frame 1 to move vertically, and can adjust the clamping gap between the first clamping plate 5 and the second clamping plate 14 (the upper top plate 7 on the upper mold frame 1 and the lower top plate 16 on the lower mold frame 2 will also clamp the fabric) in real time according to the fabric thickness. This completely replaces the fixed gap of the traditional hinged folding structure, which not only adapts to a wide range of fabric thicknesses, but also ensures uniform clamping force at all points.

[0071] Furthermore, this embodiment can be directly installed on a sewing machine without repeated disassembly and reassembly, greatly improving work efficiency and making it highly practical.

Claims

1. An adaptive garment template for a sewing machine, comprising two openable and closable template frames, each template frame being linked with a plurality of sets of clamping plates, characterized in that: The mold frame includes a pressure plate and a top plate opposite to the pressure plate. A sliding groove structure is provided between the pressure plate and the top plate. Several sets of clamping plates are respectively inserted into the sliding groove structure. The top plate is linked to a first cylinder for driving the top plate to reciprocate towards the pressure plate. The body of the first cylinder is mounted on the pressure plate, and a limiting mechanism is installed on the pressure plate. When the first cylinder drives the top plate to move away from the pressure plate, the limiting mechanism separates from the several sets of clamping plates, and the several sets of clamping plates can slide within the sliding groove structure. When the first cylinder drives the top plate to move towards the pressure plate, the limiting mechanism is linked with the several sets of clamping plates and fixes the several sets of clamping plates within the sliding groove structure.

2. The adaptive garment template for sewing machines according to claim 1, characterized in that: The limiting mechanism includes several sets of adjusting components. Each pressure plate is provided with a set of internal threaded connection holes corresponding to each set of clamping plates. Each set of adjusting components is threadedly connected to a set of internal threaded connection holes. The internal threaded connection holes are distributed on the side of the slide structure and each set of internal threaded connection holes is connected to the slide structure.

3. The adaptive garment template for sewing machines according to claim 2, characterized in that: The end of the adjusting member facing the slide structure is provided with a steel ball, and the adjusting member and the steel ball form a ball screw. Several sets of upper teeth are evenly distributed on the end face of the clamping plate facing the steel ball.

4. The adaptive garment template for sewing machines according to claim 2, characterized in that: The end of the adjusting member away from the clamping plate extends into an internally threaded connection hole, and a stop nut is connected to the end of the adjusting member away from the clamping plate. The outer diameter of the stop nut is larger than the inner diameter of the internally threaded connection hole.

5. The adaptive garment template for a sewing machine according to any one of claims 1 to 4, characterized in that: The pressure plate is also equipped with a pushing mechanism, which includes a second cylinder and a push plate that is linked to the output rod of the second cylinder. The body of the second cylinder is fixed on the pressure plate. Each set of clamping plates is connected to a set of push rods. The push plate is distributed between the pressure plate and several sets of push rods.

6. The adaptive garment template for a sewing machine according to claim 3, characterized in that: The sliding groove structure provides a set of strip holes for each set of clamping plates. Several sets of strip holes are arranged sequentially on the end face of the top plate facing the pressure plate. Each clamping plate includes a lower pressure plate that is clearance-fitted with the strip holes. The end of the lower pressure plate is provided with a pressing part that extends out of the strip holes and is bent towards another set of mold frames. The clamping plate also includes an upper pressure plate that is fixedly connected to the lower pressure plate. Several sets of upper teeth are evenly distributed on the upper pressure plate. The sliding groove structure also includes a receiving groove for accommodating several sets of upper pressure plates. The receiving groove is distributed on the end face of the pressure plate facing the top plate.

7. The adaptive garment template for a sewing machine according to any one of claims 1 to 4, characterized in that: The pressure plate is provided with a first clearance hole corresponding to the output rod of the first cylinder, and the output rod of the first cylinder passes through the first clearance hole until it is linked with the top plate.

8. The adaptive garment template for a sewing machine according to any one of claims 1 to 4, characterized in that: The two openable mold frames include an upper mold frame and a lower mold frame. A first lifting mechanism for driving the upper mold frame to reciprocate vertically and a first reciprocating mechanism for driving the upper mold frame to reciprocate horizontally are provided between the upper and lower mold frames. The first lifting mechanism includes a first support frame and a third cylinder mounted on the first support frame. The output rod of the third cylinder is linked to the upper mold frame. The upper mold frame is linked to a first slider, which is slidably engaged with a first slide rail, which is fixed to the first support frame. The first reciprocating mechanism includes a fourth cylinder mounted on the lower mold frame. The output rod of the fourth cylinder is linked to the first support frame. The first support frame is also linked to a second slider, which is slidably engaged with a second slide rail. The second slide rail is perpendicular to the first slide rail and is fixed to the lower mold frame.

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