Self-adaptive track sewing machine

Abstract

The invention relates to a self-adaptive track sewing machine which comprises a rack, a clothes template, a sewing machine head and a sewing table. The costume template comprises an upper mold frame and a lower mold frame, and the upper mold frame realizes Z-axis lifting through a first lifting mechanism and realizes X-axis movement through a first reciprocating mechanism; x-axis movement of the lower die frame is achieved through the second reciprocating mechanism, and Y-axis movement of the sewing machine head is achieved through the third reciprocating mechanism. The upper mold frame and the lower mold frame are respectively provided with a first sliding groove structure, a second sliding groove structure and a slidable clamping plate piece, the position of the clamping plate piece is automatically adjusted by being matched with a detachable adjusting rod assembly, and the position of the clamping plate piece is locked by a first limiting mechanism and a second limiting mechanism (comprising bead screws and tooth structures). Z-axis lifting of the sewing table is achieved through the second lifting mechanism, adjustment interference is avoided, and clamping plate pieces are supported in an auxiliary mode. According to the scheme, needle moving track adjustment can be completed without detaching the template, efficiency and precision are improved, and one template has multiple purposes.

Description

Technical Field

[0001] This invention specifically relates to an adaptive track sewing machine. Background Technology

[0002] To improve production efficiency in garment manufacturing, electrically driven sewing machines have emerged on the market, paired with "acrylic templates with needle tracks." Double-layered acrylic templates clamp the fabric before placing it on the sewing machine, where stitches are made along the needle tracks on the acrylic templates. Traditional "acrylic templates with needle tracks" can only be designed with one set of needle tracks; for different tracks, the corresponding acrylic template must be replaced. When garment patterns are upgraded, the corresponding acrylic templates can no longer be reused, requiring redesign and fabrication of new templates, resulting in a waste of manpower, resources, and time. To address these technical problems, patent document CN113502609B discloses a garment template forming machine and its control method. This machine uses dual motors to drive a push-pull box to move laterally and longitudinally, adjusting the spacing between clamping plates to form a needle track, aiming to achieve "multi-purpose use of one template." However, this existing technology has the following technical problems in practical applications: (i) The universal template in the existing technology 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 even exceeds the sewing operation time, making it impractical.

[0003] (ii) 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] (iii) 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] Therefore, there is an urgent need for a garment template forming technology to solve the above-mentioned technical problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an adaptive track sewing machine that addresses the shortcomings of the prior art, solves the problems of cumbersome template replacement and low adjustment efficiency of the existing technology, and enables the adjustment of the needle path without disassembling the template, thereby improving the efficiency of garment sewing production.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adaptive track sewing machine, comprising a frame, a garment template for clamping fabric, and a sewing machine head for sewing the fabric along a needle path on the garment template. The frame is further equipped with a sewing table distributed between the garment template and the sewing machine head. The garment template includes an upper template frame and a lower template frame arranged opposite to each other. The upper template frame is linked to a first lifting mechanism for driving the upper template frame to reciprocate along the Z-axis direction. The first lifting mechanism is linked to a first reciprocating mechanism for driving the first lifting mechanism and the upper template frame to reciprocate synchronously along the X-axis direction. The first reciprocating mechanism is mounted on the lower template frame. The frame is provided with a second reciprocating mechanism for driving the lower template frame to reciprocate along the X-axis direction and a third reciprocating mechanism for driving the sewing machine head to reciprocate along the Y-axis direction. The sewing machine head is detachably equipped with an adjusting rod assembly. The sewing table is linked to a second lifting mechanism for driving the sewing table to reciprocate along the Z-axis direction.

[0008] By adopting the above technical solution, this solution utilizes multi-axis linkage of the upper mold frame (Z-axis lifting + X-axis movement), the lower mold frame (X-axis movement), and the sewing machine head (Y-axis movement) to flexibly adapt to different needle paths. The adjustment process is fully automated, eliminating the need for template disassembly and folding, achieving multi-purpose functionality. Furthermore, the integrated mechanism enhances the automation level of the equipment, meeting the high-efficiency production needs of the garment manufacturing industry. Specifically, the upper mold frame, driven by the first lifting mechanism, can clamp or release the fabric. It can also move along the X-axis (relative to the lower mold frame) driven by the first reciprocating mechanism, creating a misalignment between the upper and lower mold frames, thus exposing the upper mold frame for easy fabric placement. After the fabric is placed, the upper mold frame resets under the drive of the first reciprocating mechanism until it aligns with the lower mold frame. Then, the upper mold frame of the garment template descends along the Z-axis under the drive of the first lifting mechanism to cooperate with the lower mold frame in clamping the fabric. Subsequently, the second reciprocating mechanism drives the lower mold frame (the first lifting mechanism and the upper mold frame as a whole) to move along the X-axis until it approaches the sewing machine head. The third reciprocating mechanism drives the sewing machine head to reciprocate along the Y-axis, enabling the sewing machine head to coordinate with the movement of the garment template in the X-axis to form a compound motion, thereby sewing the fabric along a preset needle path. This allows for continuous adjustment and sewing operations of different needle paths without disassembling the template. It should be noted that the adjusting rod assembly is only installed on the sewing machine head when the needle path needs to be adjusted. After adjustment, the adjusting rod assembly needs to be removed for subsequent sewing work. The function of the adjusting rod assembly is to adjust the needle path of the clamping plates on the upper and lower mold frames. When the needle path needs to be adjusted, the seventh cylinder of the second lifting mechanism drives the sewing table to move downward along the Z-axis. The guide rods on both sides are synchronously guided by linear bearings, separating the sewing table from the second clamping plate to avoid interference with the clamping plate adjustment.

[0009] The aforementioned adaptive track sewing machine can be further configured as follows: the upper mold frame includes an upper pressure plate and an upper top plate disposed opposite to the upper pressure plate; a first sliding groove structure is provided between the upper pressure plate and the upper top plate; a plurality of first clamping plates are inserted into the first sliding groove structure; the upper top plate is linked to a first cylinder for driving the upper top plate to reciprocate toward the upper pressure plate; the body of the first cylinder is mounted on the upper pressure plate; a first limiting mechanism corresponding to the first sliding groove structure is mounted on the upper pressure plate; the lower mold frame includes a lower pressure plate and a lower top plate disposed opposite to the lower pressure plate; a second sliding groove structure is provided between the lower pressure plate and the lower top plate; a plurality of second clamping plates are inserted into the second sliding groove structure; the lower top plate is linked to a sixth cylinder for driving the lower top plate to reciprocate toward the lower pressure plate; the body of the sixth cylinder is mounted on the lower pressure plate; a second limiting mechanism corresponding to the second sliding groove structure is mounted on the lower pressure plate.

[0010] Using the above technical solution, when adjusting the needle path, firstly, after the first cylinder drives the upper top plate to move away from the upper pressure plate, the first limiting mechanism separates from several sets of first clamping plates, allowing these sets of first clamping plates to slide within the first sliding groove structure. Secondly, after the sixth cylinder drives the lower top plate to move away from the lower pressure plate, the second limiting mechanism separates from several sets of second clamping plates, allowing these sets of second clamping plates to slide within the second sliding groove structure. Thirdly, after the upper pressure plate separates from the upper top plate and the lower pressure plate separates from the lower top plate, the adjusting rod assembly sequentially and synchronously drives the corresponding upper and lower first clamping plates and second clamping plates along the Y-axis direction (driven by the third reciprocating mechanism). (During this process, the second reciprocating mechanism drives the lower mold frame and simultaneously moves the upper mold frame along the X-axis direction). Thus, the corresponding upper and lower first clamping plates and second clamping plates move within the first sliding groove structure and the second sliding groove structure, respectively. When the entire row of first clamping plates and the entire row of second clamping plates are adjusted, a needle path is finally formed. Then, the first cylinder drives the upper top plate and upper pressure plate to close, and the first limiting mechanism locks the first clamping plate, fixing it within the first sliding groove structure, thereby ensuring the stable position of the first clamping plate during sewing (the same applies to the second clamping plate). In summary, the adjusting rod assembly is directly installed on the sewing machine head. Through the first and sixth cylinders, the upper / lower top plates are automatically opened and closed. This, combined with the second reciprocating mechanism (X-axis) and the third reciprocating mechanism (Y-axis), synchronously adjusts the positions of the corresponding first and second clamping plates in each column. This eliminates the cumbersome process of disassembling, folding, and reinstalling the template, greatly improving production efficiency. Furthermore, the adjusting rod assembly "synchronously drives" the corresponding first and second clamping plates column by column, ensuring that the tracks of each column of clamping plates are aligned, forming a closed needle path boundary, and avoiding thread twisting caused by misalignment of upper and lower tracks (such as double threads not overlapping or fabric wrinkling).

[0011] The aforementioned adaptive track sewing machine can be further configured as follows: the first limiting mechanism includes several sets of first adjusting members; the upper pressure plate is provided with a set of first internal threaded connecting holes corresponding to each set of first clamping plates; each set of first adjusting members is threadedly connected to a set of first internal threaded connecting holes; the first internal threaded connecting holes are distributed on the side of the first slide groove structure and each set of first internal threaded connecting holes communicates with the first slide groove structure; a first steel ball is provided at the end of the first adjusting member facing the first slide groove structure; the first adjusting member and the first steel ball form a ball screw; several sets of upper teeth are evenly distributed on the end face of the first clamping plate facing the first steel ball; the end of the first adjusting member away from the first clamping plate extends out a first internal threaded connecting hole; and a first stop nut is connected to the end of the first adjusting member away from the first clamping plate. The outer diameter is larger than the inner diameter of the first internal threaded connection hole; the second limiting mechanism includes several sets of second adjusting members, and the lower pressure plate is provided with a set of second internal threaded connection holes for each set of second clamping plates. Each set of second adjusting members is threadedly connected to a set of second internal threaded connection holes. The second internal threaded connection holes are distributed on the side of the second slide structure and each set of second internal threaded connection holes is connected to the second slide structure. The end of the second adjusting member facing the second slide structure is provided with a second steel ball. The second adjusting member and the second steel ball form a ball screw. Several sets of lower teeth are evenly distributed on the end face of the second clamping plate facing the second steel ball. The end of the second adjusting member away from the second clamping plate extends out of the second internal threaded connection hole, and the end of the second adjusting member away from the second clamping plate is connected to a second stop nut. The outer diameter of the second stop nut is larger than the inner diameter of the second internal threaded connection hole.

[0012] Using the above technical solution, during assembly, by rotating the first adjusting component (which is threaded into the first internal threaded connection hole on the side of the upper pressure plate), the first steel ball of the ball screw is precisely pressed against the upper teeth of the first clamping plate under the push of the internal spring, and the first stop nut is tightened to lock the position of the first adjusting component. Similarly, the second adjusting component is threaded into the second internal threaded connection hole, so that the second steel ball is pressed against the lower teeth of the second clamping plate and locked by the second stop nut. When adjusting the needle path, the first cylinder drives the upper top plate away from the upper pressure plate, and the first clamping plate is freed from the constraint of the first steel ball and can slide along the first slide groove structure. After the adjustment is completed, the upper top plate closes, and the first steel ball is pressed against the upper teeth again under the action of the spring to form a lock; the second limiting mechanism similarly completes the locking of the second clamping plate. During the sewing process, the first adjusting component is prevented from moving up and down through the threaded connection and the stop nut, the static friction between the steel ball and the teeth resists lateral vibration, and the spring buffers the instantaneous impact force, ensuring the stability of the positions of the first and second clamping plates. During subsequent needle path adjustment, under normal circumstances, the two adjusting components do not require operation. Only the separation of the two top plates and pressure plates allows the two clamping plates to slide freely along the slide rail structure to adjust the needle path. After adjustment, the two top plates and pressure plates can be closed. Furthermore, 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 first steel ball). The first steel ball is pressed against the first 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 adjusting component, the steel ball automatically adapts through slight spring compression, facilitating manual rotation. 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.

[0013] The aforementioned adaptive track sewing machine can be further configured as follows: a first pushing mechanism is also installed on the upper pressure plate, the first pushing mechanism includes a second cylinder and a first push plate linked with the output rod of the second cylinder, the body of the second cylinder is fixed on the upper pressure plate, each group of first clamping plates is respectively connected to a group of first push rods, and the first push plate is distributed between the upper pressure plate and several groups of first push rods; a second pushing mechanism is also installed on the lower pressure plate, the second pushing mechanism includes a fifth cylinder and a second push plate linked with the output rod of the fifth cylinder, the body of the fifth cylinder is fixed on the lower pressure plate, each group of second clamping plates is respectively connected to a group of second push rods, and the second push plate is distributed between the lower pressure plate and several groups of second push rods.

[0014] Using the above technical solution, when the needle path needs to be adjusted, the first cylinder drives the upper top plate away from the upper pressure plate. After the first limiting mechanism separates from the first clamping plate, the second cylinder of the first pushing mechanism drives the first pushing plate to move, simultaneously pushing the entire row of first push rods and the first clamping plate to slide outward along the first sliding groove structure, increasing the exposed length of the first clamping plate to reserve adjustment distance. Subsequently, the second cylinder drives the first pushing plate to automatically reset. At the same time, the sixth cylinder drives the lower top plate away from the lower pressure plate. After the second limiting mechanism separates from the second clamping plate, the fifth cylinder of the second pushing mechanism drives the second pushing plate to move, simultaneously pushing the entire row of second push rods and the second clamping plate to slide outward along the second sliding groove structure, increasing the exposed length of the second clamping plate to reserve adjustment distance. Subsequently, the fifth cylinder drives the second pushing plate to automatically reset. The purpose of the automatic reset of the two pushing plates is to avoid affecting the position adjustment of the two clamping plates.

[0015] The aforementioned adaptive track sewing machine can be further configured as follows: the adjusting rod assembly includes a connecting plate and an upper top rod and a lower top plate arranged sequentially along the Z-axis direction. The same end of the upper top rod and the lower top rod are respectively fixed to the connecting plate. The sewing machine head includes a sewing seat and a needle mechanism distributed above the sewing seat. The sewing seat has an opening slot on the side facing the lower mold frame. The connecting plate is inserted into the opening slot, and the connecting plate is detachably connected to the sewing seat by fasteners.

[0016] Using the above technical solution, when it is necessary to adjust the needle path, the connecting plate of the adjusting rod assembly is inserted into the opening slot of the sewing seat and locked with fasteners (preferably standard parts such as bolts and screws, which have good interchangeability and are easy to disassemble), so that the upper ejector rod and lower ejector rod arranged sequentially along the Z-axis correspond to the first clamping plate of the upper mold frame and the second clamping plate of the lower mold frame, respectively. Among them, the fasteners are preferably standard parts such as bolts and screws, which have good interchangeability and are easy to disassemble.

[0017] The aforementioned adaptive track sewing machine can be further configured as follows: 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 pressure plate. The upper pressure plate is also linked to a first slider. The first slider is slidably engaged with a first slide rail, and the first slide rail is fixed to the first support frame. The first reciprocating mechanism includes a fourth cylinder mounted on the lower pressure plate. 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. The second slider 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. The lower pressure plate is linked to the second reciprocating mechanism.

[0018] Using the above technical solution, when the needle path needs adjustment, the first reciprocating mechanism pushes the upper mold frame to move laterally until the ends of the entire row of first clamping plates and the entire row of second clamping plates 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. Then, the adjusting rod assembly adjusts the two rows of clamping plates until they align with the needle path. Immediately afterwards, 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 drives the upper mold frame to move laterally in the opposite direction until the entire row of second clamping plates on the lower mold frame is exposed, facilitating fabric placement. After the fabric is placed, the first reciprocating mechanism then drives the upper mold frame to return to its original position laterally until the clamping plates on the upper mold frame correspond to the clamping plates on the lower mold frame. The first lifting mechanism then drives the entire upper mold frame to move downwards until the two rows of clamping plates clamp the fabric. The third cylinder in the first lifting mechanism drives the upper mold frame to move vertically. It can adjust the clamping gap between the first clamping plate and the second clamping plate (the upper top plate on the upper mold frame and the lower top plate on the lower mold frame will also clamp the fabric) in real time according to the fabric thickness. It 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.

[0019] The aforementioned adaptive track sewing machine can be further configured as follows: the second reciprocating mechanism includes a clamping block linked to the lower pressure plate and a first transmission belt linked to the clamping block. The first transmission belt is linked to several sets of first pulleys. One set of first pulleys is linked to a rotating shaft. Both ends of the rotating shaft are rotatably mounted on the frame. The rotating shaft is also linked to a second pulley. The second pulley is linked to a second transmission belt. The end of the second transmission belt away from the second pulley is linked to a third pulley. The third pulley is linked to a first motor. The lower pressure plate is also linked to a third slider. The third slider is slidably engaged with a third slide rail. The third slide rail is mounted on the frame.

[0020] Using the above technical solution, when the lower mold frame needs to be driven to reciprocate along the X-axis, the first motor starts and drives the third pulley to rotate. The third pulley transmits power to the second pulley through the second transmission belt. The second pulley drives the rotating shaft to rotate synchronously. The two ends of the rotating shaft are rotatably mounted on the frame through bearings and drive several sets of first pulleys to rotate. The first pulley drives the clamping block to move along the X-axis through the first transmission belt. The clamping block drives the lower pressure plate to move synchronously. At the same time, the third slider linked to the lower pressure plate slides along the third slide rail on the frame, realizing the smooth reciprocating movement of the lower mold frame in the X-axis direction, so as to cooperate with the movement of the upper mold frame and the sewing machine head to form a needle path.

[0021] The aforementioned adaptive track sewing machine can be further configured such that: the third reciprocating mechanism includes a nut sleeve linked to the sewing machine head, a lead screw threaded to the nut sleeve, and a second motor linked to the end of the lead screw; both ends of the lead screw are rotatably mounted on the machine frame; the sewing machine head is also linked to a fourth slider; the fourth slider is slidably fitted with a fourth slide rail; and the fourth slide rail is mounted on the machine frame.

[0022] Using the above technical solution, when it is necessary to drive the sewing machine head to reciprocate along the Y-axis, the second motor starts and drives the lead screw to rotate. The lead screw drives the nut sleeve to move axially (Y-axis) through threaded engagement. The nut sleeve drives the sewing machine head to move synchronously. At the same time, the fourth slider linked to the sewing machine head slides along the fourth slide rail on the frame, realizing the smooth and precise reciprocating movement of the sewing machine head in the Y-axis direction, so as to cooperate with the X-axis movement of the lower mold frame and the relative movement of the upper mold frame, and complete the sewing operation along the preset needle path.

[0023] The aforementioned adaptive track sewing machine can be further configured such that: the second lifting mechanism includes a seventh cylinder linked to the sewing table and two sets of guide rods symmetrically distributed on both sides of the seventh cylinder; the body of the seventh cylinder is mounted on the frame; a linear bearing sleeved on the outer periphery of the guide rod is mounted on the frame; and the upper end of the guide rod is linked to the sewing table.

[0024] Using the above technical solution, when the needle path needs to be adjusted, the seventh cylinder of the second lifting mechanism drives the sewing table to move downward along the Z-axis. The guide rods on both sides are synchronously guided by linear bearings to separate the sewing table from the second clamping plate to avoid interference with the adjustment of the clamping plate. After the adjustment is completed, the seventh cylinder drives the sewing table to move upward along the Z-axis. The guide rods slide in the linear bearings to ensure that the sewing table rises smoothly until the sewing table is located below the second clamping plate and forms a support. Then the sewing machine head moves along the Y-axis, and the lower mold frame moves along the X-axis. The sewing table assists in supporting the second clamping plate to resist the downward pressure during the sewing process, ensuring the stability of the needle path.

[0025] The aforementioned adaptive track sewing machine can be further configured as follows: the first chute structure has a set of first strip holes corresponding to each group of first clamping plates; several groups of first strip holes are arranged sequentially on the end face of the upper top plate facing the upper pressure plate; the first clamping plate includes a first lower pressure plate that is clearance-fitted with the first strip holes; the end of the first lower pressure plate has a first pressing part that extends out of the first strip holes and is bent towards the lower die frame; the first clamping plate also includes a first upper pressure plate fixedly connected to the first lower pressure plate; several groups of upper teeth are evenly distributed on the first upper pressure plate; the first chute structure also includes a first receiving groove for accommodating several groups of first upper pressure plates; the first receiving groove is divided into... The second sliding groove structure is provided with a set of second strip holes for each set of second clamping plates. Several sets of second strip holes are arranged sequentially on the end face of the lower top plate facing the lower pressure plate. The second clamping plate includes a second lower pressure plate that is clearance-fitted with the second strip holes. The end of the second lower pressure plate is provided with a second pressing part that extends out of the second strip holes and is bent towards the upper mold frame. The second clamping plate also includes a second upper pressure plate that is fixedly connected to the second lower pressure plate. Several sets of lower teeth are evenly distributed on the second upper pressure plate. The second sliding groove structure also includes a second receiving groove for accommodating several sets of second upper pressure plates. The second receiving groove is distributed on the end face of the lower pressure plate facing the lower top plate.

[0026] Using the above technical solution, both the first and second clamping plates correspond to independent strip holes (first strip hole / second strip hole), enabling independent adjustment of each clamping plate without interference, adapting to complex sewing patterns. Both are reinforced with fixedly connected pressure plates (first upper pressure plate and first lower pressure plate / second upper pressure plate and second lower pressure plate), ensuring that the end pressure parts (first pressure part / second pressure part) press the fabric tightly when the template is closed. Specifically, the first pressure part bends towards the lower mold frame, and the second pressure part bends towards the upper mold frame, respectively avoiding gap problems caused by the thickness of the upper and lower top plates, ensuring that the pressure parts accurately clamp the fabric along the needle path.

[0027] The beneficial effects of this invention are as follows: Through the cooperation of the multi-axis linkage mechanism (X-axis dual drive, Y-axis independent drive, Z-axis lifting) and the automated clamping plate adjustment module (adjustment rod assembly + limit mechanism), the cumbersome process of disassembling, folding and repeatedly installing the traditional template is eliminated, which greatly improves the efficiency of needle trajectory adjustment.

[0028] The three directions "X-axis, Y-axis, and Z-axis" mentioned in this application are for the purpose of helping those skilled in the art to better understand the invention. The X-axis can be referenced to the "movement direction of the second slider" (the two are parallel to each other), the Y-axis can be referenced to the fourth slide rail (the two are parallel to each other), and the Z-axis can be referenced to the "movement direction of the first slider" (the two are parallel to each other).

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the entire machine according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the upper mold frame, lower mold frame, and sewing table structure according to an embodiment of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the upper mold frame, lower mold frame, and sewing table structure according to an embodiment of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the upper and lower mold frame structures according to an embodiment of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the upper and lower mold frame structures according to an embodiment of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the upper mold frame structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the lower mold frame structure according to an embodiment of the present invention; Figure 8 This is an exploded view of the upper mold frame according to an embodiment of the present invention; Figure 9 This is an exploded view of the lower mold frame according to an embodiment of the present invention; Figure 10 This is a magnified view of part A in Figure 4; Figure 11 This is a schematic diagram of the installation of the adjusting rod assembly according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the first adjusting member according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure of the first and second clamping plates according to an embodiment of the present invention.

[0031] 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; second reciprocating mechanism 22, clamping block 2201, first transmission belt 2202, rotating shaft 2203, second transmission belt 2204, first motor 2205; sewing machine Head 23, sewing seat 2301, needle mechanism 2302, opening groove 2303; third reciprocating mechanism 24, nut sleeve 2401, lead screw 2402, second motor 2403, fourth slide rail 2404; adjusting rod assembly 25, upper push rod 2501, lower push rod 2502, connecting plate 2503; sewing table 26; second lifting mechanism 27, seventh cylinder 2701, guide rod 2702, linear bearing 2703. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 13The adaptive track sewing machine shown includes a frame, a garment template for clamping fabric, and a sewing head 23 for sewing the fabric along the needle path on the garment template. The frame is also equipped with a sewing table 26 distributed between the garment template and the sewing head 23. The garment template includes an upper template frame 1 and a lower template frame 2 arranged opposite to each other. The upper template frame 1 is linked to a first lifting mechanism 3 for driving the upper template frame 1 to reciprocate along the Z-axis. The first lifting mechanism 3 is linked to a first reciprocating mechanism 4 for driving the first lifting mechanism 3 and the upper template frame 1 to reciprocate synchronously along the X-axis. The first reciprocating mechanism 4 is mounted on the lower template frame 2. The frame is provided with a second reciprocating mechanism 22 for driving the lower template frame 2 to reciprocate along the X-axis and a third reciprocating mechanism 24 for driving the sewing head 23 to reciprocate along the Y-axis.

[0034] This solution utilizes multi-axis linkage between the upper mold frame 1 (Z-axis lifting + X-axis movement), the lower mold frame 2 (X-axis movement), and the sewing machine head 23 (Y-axis movement) to flexibly adapt to different needle paths. The adjustment process is fully automated, eliminating the need for template disassembly and folding, achieving multi-purpose functionality. Furthermore, the integrated mechanism enhances the equipment's automation level, meeting the high-efficiency production needs of the garment manufacturing industry. Specifically, the upper mold frame 1, driven by the first lifting mechanism 3, can clamp or release the fabric. It can also move along the X-axis (relative to the lower mold frame 2) driven by the first reciprocating mechanism 4, creating a misalignment between the upper and lower mold frames, thus exposing the upper mold frame 1 for easy fabric placement. After the fabric is placed, the upper mold frame 1 resets under the drive of the first reciprocating mechanism 4 until it aligns with the lower mold frame 2. Then, the upper mold frame 1 of the garment template descends along the Z-axis under the drive of the first lifting mechanism 3 to clamp the fabric in conjunction with the lower mold frame 2. Subsequently, the second reciprocating mechanism 22 drives the lower mold frame 2 (the first lifting mechanism 3 and the upper mold frame 1 as a whole) to move along the X-axis until it approaches the sewing machine head 23. The third reciprocating mechanism 24 drives the sewing machine head 23 to reciprocate along the Y-axis, so that the sewing machine head 23 can cooperate with the movement of the garment template in the X-axis to form a compound motion, thereby sewing the fabric along the preset needle path, realizing the continuous adjustment and sewing operation of different needle paths without disassembling the template.

[0035] 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 inserted into the first sliding groove structure 9. The upper top plate 7 is linked to a first cylinder 13 for driving the upper top plate 7 to reciprocate toward the upper pressure plate 6. The body of the first cylinder 13 is mounted on the upper pressure plate 6. A first limiting mechanism corresponding to the first sliding groove structure 9 is installed on the upper pressure plate 6. The lower mold frame 2 includes a lower pressure plate. 15 and a lower top plate 16 disposed 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, a plurality of sets of second clamping plates 14 are inserted at 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, and a second limiting mechanism corresponding to the second sliding groove structure 17 is mounted on the lower pressure plate 15; The sewing machine head 23 is detachably equipped with an adjusting rod assembly 25 for adjusting the positions of several sets of first clamping plates 5 and several sets of second clamping plates 14 to match the shape of the needle path.

[0036] It should be noted that the adjusting rod assembly 25 is only installed on the sewing machine head 23 when the needle path needs to be adjusted. After adjustment, the adjusting rod assembly 25 needs to be removed to facilitate subsequent sewing work. When adjusting the needle path, firstly, after 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 several sets of first clamping plates 5, and the several sets of first clamping plates 5 can slide within the first sliding groove structure 9; after 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 several sets of second clamping plates 14, and the several sets of second clamping plates 14 can slide within the second sliding groove structure 17. Secondly, after the upper pressure plate 6 separates from the upper top plate 7 and the lower pressure plate 15 separates from the lower top plate 16, the adjusting rod assembly 25 will sequentially and synchronously drive the corresponding first clamping plate 5 and second clamping plate 14 in each column along the Y-axis direction (driven by the third reciprocating mechanism 24). (During this process, the second reciprocating mechanism 22 will drive the lower mold frame 2 and simultaneously drive the upper mold frame 1 to move along the X-axis direction). Thus, the corresponding first clamping plate 5 and second clamping plate 14 in each column move in the first slide groove structure 9 and the second slide groove structure 17, respectively. After the entire row of first clamping plate 5 and the entire row of second clamping plate 14 are adjusted, a needle path will be formed. Then, the first cylinder 13 drives the upper top plate 7 and the upper pressure plate 6 to close, and 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 a stable position of the first clamping plate 5 during the sewing process (the same applies to the second clamping plate 14).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 connecting holes 601 corresponding to each set of first clamping plates 5. Each set of first adjusting members 8 is threadedly connected to a set of first internal threaded connecting holes 601. The first internal threaded connecting holes 601 are distributed on the side of the first sliding groove structure 9, and each set of first internal threaded connecting holes 601 communicates with the first sliding groove structure 9. A first steel ball 801 is provided at the end of the first adjusting member 8 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 first internal threaded connecting hole 601 extends from the end of the first adjusting member 8 away from the first clamping plate 5, and a first stop nut 10 is connected to the end of the first adjusting member 8 away from the first clamping plate 5. The outer diameter of the first stop nut 10 is larger than the inner diameter of the first internal threaded connecting hole 601. 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 structure 17 and each set of second internal threaded connection holes 1501 is connected to the second slide structure 17. The end of the second adjusting member 19 facing the second slide structure 17 is provided with a second steel ball. 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. The end of the second adjusting member 19 away from the second clamping plate 14 extends out of the 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 is larger than the inner diameter of the second internal threaded connection hole 1501.

[0037] During assembly, 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 first steel ball 801 of the ball screw is precisely pressed against the upper tooth 501 of the first clamping plate 5 under the push of the internal spring, and the first stop nut 10 is tightened to lock the position of the first adjusting component 8. Similarly, the second adjusting component 19 is threaded into the second internal threaded connection hole 1501, so that the second steel ball is pressed against the lower tooth 1401 of the second clamping plate 14 and locked by the second stop nut. When adjusting the needle path, the first cylinder 13 drives the upper top plate 7 away from the upper pressure plate 6, and the first clamping plate 5 is released from the constraint of the first steel ball 801 and can slide along the first slide groove structure 9. After the adjustment is completed, the upper top plate 7 closes, and the first steel ball 801 is pressed against the upper tooth 501 again under the action of the spring to form a lock; the second limiting mechanism similarly completes the locking of the second clamping plate 14. During sewing, the first adjusting component 8 is prevented from moving up and down by a threaded connection and a locking nut. The static friction between the steel ball and the teeth resists lateral vibration, and the spring buffers the instantaneous impact force, ensuring the stability of the first clamping plate 5 and the second clamping plate 14. In subsequent needle trajectory adjustments, under normal circumstances, the two adjusting components do not require operation. Only the separation of the two top plates and pressure plates allows the two rows of clamping plates to move within their corresponding slots. Then, the adjusting rod assembly 25 is used to adjust the two rows of clamping plates until they align with the needle trajectory. Immediately afterwards, 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 trajectory adjustment is completed, the first reciprocating mechanism 4 drives the upper mold frame 1 to move in the opposite lateral 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 drives the upper mold frame 1 to reset laterally until the clamping plates on the upper mold frame 1 correspond to the clamping plates on the lower mold frame 2. Then, the first lifting mechanism 3 drives the 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 at all points.

[0038] A first pushing mechanism is also installed on the upper pressure plate 6. The first pushing mechanism includes a second cylinder 11 and a first push plate 12 linked with 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. 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 linked with 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.

[0039] When the needle path needs adjustment, the first cylinder 13 drives the upper top plate 7 away from the upper pressure plate 6. After the first limiting mechanism separates from the first clamping plate 5, the second cylinder 11 of the first pushing mechanism drives the first pushing plate 12 to move, simultaneously pushing the entire row of first push rods 502 and the first clamping plate 5 to slide outward along the first sliding groove structure 9, increasing the exposed length of the first clamping plate 5 to reserve adjustment distance. Then, the second cylinder 11 drives the first pushing plate 12 to automatically reset. At the same time, the sixth cylinder 18 drives the lower top plate 16 away from the lower pressure plate 15. After the second limiting mechanism separates from the second clamping plate 14, the fifth cylinder 21 of the second pushing mechanism drives the second pushing plate 20 to move, simultaneously pushing the entire row of second push rods 1402 and the second clamping plate 14 to slide outward along the second sliding groove structure 17, increasing the exposed length of the second clamping plate 14 to reserve adjustment distance. Then, the fifth cylinder 21 drives the second pushing plate 20 to automatically reset. The purpose of the automatic reset of the two pushing plates is to avoid affecting the position adjustment of the two clamping plates.

[0040] The adjusting rod assembly 25 includes a connecting plate 2503 and an upper push rod 2501 and a lower push rod 2502 arranged sequentially along the Z-axis. The same end of the upper push rod 2501 and the lower push rod 2502 are respectively fixed to the connecting plate 2503. The sewing machine head 23 includes a sewing seat 2301 and a needle mechanism 2302 distributed above the sewing seat 2301. The sewing seat 2301 has an opening slot 2303 on the side facing the lower mold frame 2. The connecting plate 2503 is inserted into the opening slot 2303, and the connecting plate 2503 is detachably connected to the sewing seat 2301 by fasteners.

[0041] When it is necessary to adjust the needle path, the connecting plate 2503 of the adjusting rod assembly 25 is inserted into the opening slot 2303 of the sewing seat 2301 and locked with fasteners, so that the upper ejector rod 2501 and the lower ejector rod 2502 arranged sequentially along the Z-axis correspond to the first clamping plate 5 of the upper mold frame 1 and the second clamping plate 14 of the lower mold frame 2, respectively. Among them, the fasteners are preferably standard parts such as bolts and screws, which have good interchangeability and are easy to disassemble.

[0042] 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. 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 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, which is perpendicular to the first slide rail. The second slide rail is fixed to the lower pressure plate 15. The lower pressure plate 15 is linked to the second reciprocating mechanism 22.

[0043] 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. Then, the adjusting rod assembly 25 is used to adjust the two rows of clamping plates until they align with the needle path. Immediately afterward, 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 completed, 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 the placement of the fabric. 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 downward 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.

[0044] The second reciprocating mechanism 22 includes a clamping block 2201 linked to the lower pressure plate 15 and a first transmission belt 2202 linked to the clamping block 2201. The first transmission belt 2202 is linked to several sets of first pulleys. One set of first pulleys is linked to a rotating shaft 2203. The two ends of the rotating shaft 2203 are rotatably mounted on the frame. The rotating shaft 2203 is also linked to a second pulley. The second pulley is linked to a second transmission belt 2204. The end of the second transmission belt 2204 away from the second pulley is linked to a third pulley. The third pulley is linked to a first motor 2205. The lower pressure plate 15 is also linked to a third slider. The third slider is slidably engaged with a third slide rail. The third slide rail is mounted on the frame.

[0045] When the lower mold frame 2 needs to be driven to reciprocate along the X-axis, the first motor 2205 starts and drives the third pulley to rotate. The third pulley transmits power to the second pulley through the second transmission belt 2204. The second pulley drives the rotating shaft 2203 to rotate synchronously. The two ends of the rotating shaft 2203 are rotatably mounted on the frame through bearings and drive several sets of first pulleys to rotate. The first pulley drives the clamping block 2201 to move along the X-axis through the first transmission belt 2202. The clamping block 2201 drives the lower pressure plate 15 to move synchronously. At the same time, the third slider linked to the lower pressure plate 15 slides along the third slide rail on the frame, so as to realize the smooth reciprocating movement of the lower mold frame 2 in the X-axis direction, so as to cooperate with the movement of the upper mold frame 1 and the sewing machine head 23 to form a needle path.

[0046] The third reciprocating mechanism 24 includes a nut sleeve 2401 linked to the sewing machine head 23, a lead screw 2402 threadedly engaged with the nut sleeve 2401, and a second motor 2403 linked to the end of the lead screw 2402. The two ends of the lead screw 2402 are rotatably mounted on the machine frame. The sewing machine head 23 is also linked to a fourth slider, which is slidably engaged with a fourth slide rail 2404, which is mounted on the machine frame.

[0047] When it is necessary to drive the sewing machine head 23 to reciprocate along the Y-axis, the second motor 2403 starts and drives the lead screw 2402 to rotate. The lead screw 2402 drives the nut sleeve 2401 to move axially (Y-axis) through thread engagement. The nut sleeve 2401 drives the sewing machine head 23 to move synchronously. At the same time, the fourth slider linked to the sewing machine head 23 slides along the fourth slide rail 2404 on the frame, so as to realize the smooth and precise reciprocating movement of the sewing machine head 23 in the Y-axis direction, so as to cooperate with the X-axis movement of the lower mold frame 2 and the relative movement of the upper mold frame 1, and complete the sewing operation along the preset needle path.

[0048] The sewing table 26 is linked to a second lifting mechanism 27 for driving the sewing table 26 to reciprocate along the Z-axis. The second lifting mechanism 27 includes a seventh cylinder 2701 linked to the sewing table 26 and two sets of guide rods 2702 symmetrically distributed on both sides of the seventh cylinder 2701. The body of the seventh cylinder 2701 is mounted on the frame. A linear bearing 2703 sleeved on the outer periphery of the guide rod 2702 is mounted on the frame. The upper end of the guide rod 2702 is linked to the sewing table 26.

[0049] When the needle path needs to be adjusted, the seventh cylinder 2701 of the second lifting mechanism 27 drives the sewing table 26 to move downward along the Z-axis. The guide rods 2702 on both sides guide synchronously through the linear bearings 2703, so that the sewing table 26 is separated from the second clamping plate 14 to avoid interference with the adjustment of the clamping plate. After the adjustment is completed, the seventh cylinder 2701 drives the sewing table 26 to move upward along the Z-axis. The guide rods 2702 slide in the linear bearings 2703 to ensure that the sewing table 26 rises smoothly until the sewing table 26 is located below the second clamping plate 14 and forms a support. Then the sewing machine head 23 moves along the Y-axis and the lower mold frame 2 moves along the X-axis. The sewing table 26 assists in supporting the second clamping plate 14 to resist the downward pressure during the sewing process and ensures the stability of the needle path.

[0050] The first sliding groove structure 9 is provided with a set of first strip holes 901 for each group 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 holes 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 holes 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. The second sliding groove Structure 17 provides 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 sliding groove 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.

[0051] Both the first clamping plate 5 and the second clamping plate 14 have independent strip holes (first strip hole 901 / second strip hole 1701), allowing for independent adjustment of each clamping plate without interference, adapting to complex sewing patterns. Both are reinforced by fixedly connected pressure plates (first upper pressure plate 504 and first lower pressure plate 503 / second upper pressure plate 1405 and second lower pressure plate 1403), ensuring that the end pressure parts (first pressure part 505 / second pressure part 1404) press the fabric tightly when the template is closed. Specifically, the first pressure part 505 is bent towards the lower mold frame 2, and the second pressure part 1404 is bent towards the upper mold frame 1, respectively avoiding gap problems caused by the thickness of the upper top plate 7 and the lower top plate 16, ensuring that the pressure parts accurately clamp the fabric at the needle path.

[0052] The upper pressure plate 6 has 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. The first cylinder 13 can be directly installed on the upper pressure plate 6. The first clearance hole 602 enables the output end of the first cylinder 13 to be linked with the upper top plate 7. 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. The lower pressure plate 15 has 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. The sixth cylinder 18 can be directly installed on the lower pressure plate 15. The second clearance hole 1502 enables the output end of the sixth cylinder 18 to be linked with the lower top plate 16. 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.

[0053] The needle trajectory adjustment method is as follows: The second lifting mechanism 27 drives the sewing table 26 to move downward to avoid the sewing table 26 interfering with the adjustment of the two rows of clamping plates. The connecting plate 2503 of the adjusting rod assembly 25 is inserted into the opening slot 2303 of the sewing seat 2301 and locked by fasteners, so that the upper push rod 2501 and lower push rod 2502 arranged along the Z-axis correspond to the first clamping plate 5 and the second clamping plate 14, respectively. 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 the first clamping plate 5 can slide along the first sliding groove structure 9; 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 the second clamping plate 14 can slide along the second sliding groove structure 17. The second cylinder 11 of the first pushing mechanism drives the first pushing plate 12 to move, simultaneously pushing the entire row of first push rods 502 and the first clamping plate 5 to slide outward along the first sliding groove structure 9, increasing the exposed length of the first clamping plate 5. Then, the second cylinder 11 drives the first pushing plate 12 to automatically reset. The fifth cylinder 21 of the second pushing mechanism drives the second pushing plate 20 to move, simultaneously pushing the entire row of second push rods 1402 and the second clamping plate 14 to slide outward along the second sliding groove structure 17, increasing the exposed length of the second clamping plate 14. Then, the fifth cylinder 21 drives the second pushing plate 20 to automatically reset. The third reciprocating mechanism 24 drives the sewing machine head 23 to move along the Y-axis, causing the adjusting rod assembly 25 to move synchronously. The upper push rod 2501 pushes the corresponding first clamping plate 5 column by column, sliding along the first strip hole 901 in the first slide groove structure 9. The lower push rod 2502 pushes the corresponding second clamping plate 14 column by column, sliding along the second strip hole 1701 in the second slide groove structure 17. During the adjustment process, the second reciprocating mechanism 22 drives the lower mold frame 2 (including the upper mold frame 1) to move along the X-axis, cooperating with the Y-axis movement of the adjusting rod assembly 25, so that each column of first clamping plate 5 and second clamping plate 14 forms a preset needle path. After the adjustment is completed, the first cylinder 13 drives the upper top plate 7 and the upper pressure plate 6 to close, and the first adjusting component 8 fixes the position of the first clamping plate 5. The sixth cylinder 18 drives the lower top plate 16 and the lower pressure plate 15 to close, and the second adjusting component 19 fixes the position of the second clamping plate 14. The adjusting rod assembly 25 is then disassembled to complete the needle path adjustment.

[0054] II. After the needle path adjustment is completed, the sewing process is as follows: The first reciprocating mechanism 4 drives the first support frame 301 (including the upper mold frame 1) to move laterally along the second slide rail, causing the upper mold frame 1 and the lower mold frame 2 to be misaligned, exposing the second clamping plate 14 of the lower mold frame 2, which facilitates the placement of the fabric. After the fabric is placed, the first reciprocating mechanism 4 drives the upper mold frame 1 to reset, so that the first clamping plate 5 and the second clamping plate 14 are vertically aligned; the third cylinder 303 of the first lifting mechanism 3 drives the upper pressure plate 6 to move downward along the first slide rail (fixed to the first support frame 301), and the first pressing part 505 and the second pressing part 1404 cooperate to clamp the fabric; the second lifting mechanism 27 drives the sewing table 26 to move upward along the Z-axis until the sewing table 26 is supported below the second clamping plate 14. The second reciprocating mechanism 22 drives the lower mold frame 2 (including the upper mold frame 1 and the fabric) to move synchronously, and the third reciprocating mechanism 24 drives the sewing machine head 23 to move along the Y-axis. With their cooperation, the operation is finally transformed into the action of sewing the fabric along the needle path. After the sewing is completed, the first lifting mechanism 3 drives the upper mold frame 1 to move upward and release the fabric; the second reciprocating mechanism 22 drives the lower mold frame 2 to reset, and the second lifting mechanism 27 drives the sewing table 26 to move downward, completing a single sewing cycle.

Claims

1. An adaptive track sewing machine, comprising a frame, a garment template for clamping fabric, and a sewing head for sewing the fabric along a needle path on the garment template, wherein the frame is further equipped with sewing tables distributed between the garment template and the sewing head, characterized in that: The garment template includes an upper mold frame and a lower mold frame arranged opposite to each other. The upper mold frame is linked to a first lifting mechanism for driving the upper mold frame to reciprocate along the Z-axis direction. The first lifting mechanism is linked to a first reciprocating mechanism for driving the first lifting mechanism and the upper mold frame to reciprocate synchronously along the X-axis direction. The first reciprocating mechanism is mounted on the lower mold frame. The frame is provided with a second reciprocating mechanism for driving the lower mold frame to reciprocate along the X-axis direction and a third reciprocating mechanism for driving the sewing machine head to reciprocate along the Y-axis direction. The sewing machine head is detachably equipped with an adjusting rod assembly. The sewing table is linked to a second lifting mechanism for driving the sewing table to reciprocate along the Z-axis direction.

2. The adaptive track sewing machine according to claim 1, characterized in that: The upper mold frame includes an upper pressure plate and an upper top plate disposed opposite to the upper pressure plate. A first sliding groove structure is provided between the upper pressure plate and the upper top plate. Several sets of first clamping plates are inserted into the first sliding groove structure. The upper top plate is linked to a first cylinder for driving the upper top plate to reciprocate toward the upper pressure plate. The body of the first cylinder is mounted on the upper pressure plate. A first limiting mechanism corresponding to the first sliding groove structure is mounted on the upper pressure plate. The lower mold frame includes a lower pressure plate and a lower top plate disposed opposite to the lower pressure plate. A second sliding groove structure is provided between the lower pressure plate and the lower top plate. Several sets of second clamping plates are inserted into the second sliding groove structure. The lower top plate is linked to a sixth cylinder for driving the lower top plate to reciprocate toward the lower pressure plate. The body of the sixth cylinder is mounted on the lower pressure plate. A second limiting mechanism corresponding to the second sliding groove structure is mounted on the lower pressure plate.

3. The adaptive track sewing machine according to claim 2, characterized in that: The first limiting mechanism includes several sets of first adjusting members. The upper pressure plate is provided with a set of first internal threaded connection holes for each set of first clamping plates. Each set of first adjusting members is threadedly connected to a set of first internal threaded connection holes. The first internal threaded connection holes are distributed on the side of the first slide groove structure and each set of first internal threaded connection holes is connected to the first slide groove structure. The end of the first adjusting member facing the first slide groove structure is provided with a first steel ball. The first adjusting member and the first steel ball form a ball screw. Several sets of upper teeth are evenly distributed on the end face of the first clamping plate facing the first steel ball. The end of the first adjusting member away from the first clamping plate extends out a first internal threaded connection hole, and the end of the first adjusting member away from the first clamping plate is connected to a first stop nut. The outer diameter of the first stop nut is larger than the inner diameter of the first internal threaded connection hole. The second limiting mechanism includes several sets of second adjusting members. The lower pressure plate is provided with a set of second internal threaded connection holes for each set of second clamping plates. Each set of second adjusting members is threadedly connected to a set of second internal threaded connection holes. The second internal threaded connection holes are distributed on the side of the second slide structure and each set of second internal threaded connection holes is connected to the second slide structure. The end of the second adjusting member facing the second slide structure is provided with a second steel ball. The second adjusting member and the second steel ball form a ball screw. Several sets of lower teeth are evenly distributed on the end face of the second clamping plate facing the second steel ball. The end of the second adjusting member away from the second clamping plate extends out of the second internal threaded connection hole, and the end of the second adjusting member away from the second clamping plate is connected to a second stop nut. The outer diameter of the second stop nut is larger than the inner diameter of the second internal threaded connection hole.

4. The adaptive track sewing machine according to claim 2, characterized in that: The upper pressure plate is also equipped with a first pushing mechanism. The first pushing mechanism includes a second cylinder and a first pushing plate linked with the output rod of the second cylinder. The body of the second cylinder is fixed on the upper pressure plate. Each set of the first clamping plates is connected to a set of first pushing rods. The first pushing plate is distributed between the upper pressure plate and several sets of first pushing rods. The lower pressure plate is also equipped with a second pushing mechanism, which includes a fifth cylinder and a second push plate linked to the output rod of the fifth cylinder. The body of the fifth cylinder is fixed on the lower pressure plate. Each set of second clamping plates is connected to a set of second push rods. The second push plate is distributed between the lower pressure plate and several sets of second push rods.

5. The adaptive track sewing machine according to any one of claims 2 to 4, characterized in that: The adjusting rod assembly includes a connecting plate and an upper push rod and a lower push plate arranged sequentially along the Z-axis. The same end of the upper push rod and the lower push rod are respectively fixed to the connecting plate. The sewing machine head includes a sewing seat and a needle mechanism distributed above the sewing seat. The sewing seat has an opening slot on the side facing the lower mold frame. The connecting plate is inserted into the opening slot, and the connecting plate is detachably connected to the sewing seat by fasteners.

6. The adaptive track sewing machine according to any one of claims 2 to 4, characterized in that: 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 an upper pressure plate. The upper pressure plate is also linked to a first slider. The first slider 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 a lower pressure plate. 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. The second slider is slidably engaged with a second slide rail, which is perpendicular to the first slide rail. The second slide rail is fixed to the lower pressure plate. The lower pressure plate is linked to the second reciprocating mechanism.

7. The adaptive track sewing machine according to claim 6, characterized in that: The second reciprocating mechanism includes a clamping block linked to the lower pressure plate and a first transmission belt linked to the clamping block. The first transmission belt is linked to several sets of first pulleys. One set of first pulleys is linked to a rotating shaft. Both ends of the rotating shaft are rotatably mounted on the frame. The rotating shaft is also linked to a second pulley. The second pulley is linked to a second transmission belt. The end of the second transmission belt away from the second pulley is linked to a third pulley. The third pulley is linked to a first motor. The lower pressure plate is also linked to a third slider. The third slider is slidably fitted with a third slide rail. The third slide rail is mounted on the frame.

8. The adaptive track sewing machine according to any one of claims 1 to 4, characterized in that: The third reciprocating mechanism includes a nut sleeve linked to the sewing machine head, a lead screw threaded to the nut sleeve, and a second motor linked to the end of the lead screw. The two ends of the lead screw are rotatably mounted on the machine frame. The sewing machine head is also linked to a fourth slider, which is slidably fitted with a fourth slide rail, which is mounted on the machine frame.

9. The adaptive track sewing machine according to any one of claims 1 to 4, characterized in that: The second lifting mechanism includes a seventh cylinder linked to the sewing table and two sets of guide rods symmetrically distributed on both sides of the seventh cylinder. The body of the seventh cylinder is mounted on the frame, and a linear bearing sleeved on the outer periphery of the guide rod is mounted on the frame. The upper end of the guide rod is linked to the sewing table.

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

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