Adaptive orbital stitcher

Abstract

The present application relates to an adaptive track sewing machine, comprising a frame, a clothing template, a sewing head and a sewing table. The clothing template comprises an upper die frame and a lower die frame. The upper die frame is lifted along the Z-axis by a first lifting mechanism and moved along the X-axis by a first reciprocating mechanism. The lower die frame is moved along the X-axis by a second reciprocating mechanism. The sewing head is moved along the Y-axis by a third reciprocating mechanism. The upper and lower die frames are respectively provided with first and second sliding groove structures and slidable clamping plates, which cooperate with a detachable adjusting rod assembly to automatically adjust the position of the clamping plates. First and second limiting mechanisms (including wave bead screws and tooth structures) lock the position of the clamping plates. The sewing table is lifted along the Z-axis by a second lifting mechanism to avoid adjustment interference and assist in supporting the clamping plates. This scheme can complete needle track adjustment without disassembling the template, improving efficiency and accuracy and realizing "one board, multiple uses".

Description

TECHNICAL FIELD

[0001] The present application relates to an adaptive track sewing machine. BACKGROUND

[0002] In order to improve the production efficiency of garment manufacturing, electrically driven sewing machines have appeared on the market, and the corresponding "acrylic template with needle track" is matched. The double-layer acrylic template clamps the fabric, and then is placed on the sewing machine to sew along the needle track on the acrylic template. The traditional "acrylic template with needle track" can only design one set of needle track, and different needle tracks must be replaced with corresponding acrylic templates. After the garment pattern is upgraded, the corresponding acrylic template cannot be reused, and a new template needs to be designed and produced, resulting in waste of manpower, material resources and time. In order to solve the above technical problems, the patent document with publication number "CN113502609B" discloses a garment template forming machine and a control method thereof. The double-motor drive push-pull box moves horizontally and vertically, and the spacing between the clamping plates is adjusted to form the needle track, with the purpose of realizing "one board with multiple uses". However, the existing technology has the following technical problems in actual application:

[0003] (1) The universal template in the existing technology must be disassembled from the sewing machine, installed in the template machine in the state of "upper template and lower template laid flat", and the clamping plate adjustment is completed. After adjustment, it needs to be disassembled again, folded and reinstalled on the sewing machine. This process involves at least 4 manual operations (disassembly, installation, disassembly again, and installation again). For complex needle tracks (such as 10 columns of clamping plates), the single adjustment time exceeds 20 minutes, which is much lower than the efficiency of replacing traditional manual templates, and it is impossible to realize "automatic efficiency improvement". Especially in batch production, the adjustment time even exceeds the sewing operation time, which is not practical.

[0004] (2) According to paragraphs 0007, 0018 and the attached drawings of the specification of the existing technology, Figure 7 It can be clearly seen that after the clamping plate slides in the needle groove, the cam knob needs to be manually rotated to drive the pressure rod to rotate. The semicircular protrusion on the outer wall of the pressure rod contacts the semicircular groove of the pressure plate, and the semicircular protrusion will extrude the pressure plate. The spring is compressed by the pressure plate, so the pressure plate is pressed tightly against the clamping plate under the action of the spring force, so as to realize the fixation of the clamping plate in the needle groove. It can be seen that the main method in this technology is to control the lifting of the pressure plate by the extension force of the spring, so as to limit the clamping plate. However, the spring force is not continuous and stable, especially the repeated compression and release are prone to fatigue, which causes the pressure plate to fail to press the clamping plate tightly, and the clamping plate is prone to sliding during sewing.

[0005] (Three), according to the prior art disclosed in the description of the first 0007 paragraph "the upper die plate and the lower die plate are hinged at one end", if you need to clamp the cloth, need to fold the upper die plate and the lower die plate closed, such structure not only leads to the gap between the upper die plate and the lower die plate can not be adjusted, but also the clamping of the cloth is uneven. After clamping, the cloth is placed between the upper die plate and the lower die plate, which is easy to appear uneven clamping, the inner side of the cloth is easy to wrinkle under the action of larger clamping force, and the edge of the cloth is easy to move longitudinally in the sewing process under the action of looser clamping force, which directly causes the sewing line to deviate from the needle track.

[0006] Therefore, there is an urgent need for a garment template forming technology to solve the above technical problems. SUMMARY

[0007] The technical problem to be solved by the present application is to solve the problems of the prior art, such as complicated replacement of traditional templates, low adjustment efficiency of existing technology, and to realize the adjustment of needle track without disassembling the template, and to improve the efficiency of garment sewing production.

[0008] To achieve the above purpose, the present application provides the following technical scheme: an adaptive track sewing machine, comprising a rack, a clothing template for clamping fabric, a sewing machine head for sewing fabric along the needle track on the clothing template, and a sewing table distributed between the clothing template and the sewing machine head, characterized in that: the clothing template comprises an upper die frame and a lower die frame arranged oppositely, the upper die frame is connected with a first lifting mechanism for driving the upper die frame to move back and forth along the Z axis direction, the first lifting mechanism is connected with a first reciprocating mechanism for driving the first lifting mechanism and the upper die frame to move back and forth along the X axis direction synchronously, the first reciprocating mechanism is installed on the lower die frame, the rack is provided with a second reciprocating mechanism for driving the lower die frame to move back and forth along the X axis direction, and a third reciprocating mechanism for driving the sewing machine head to move back and forth along the Y axis direction, the sewing machine head is detachably installed with a adjusting rod assembly, and the sewing table is connected with a second lifting mechanism for driving the sewing table to move back and forth along the Z axis direction.

[0009] The technical scheme is adopted, and the multi-axis linkage of the upper die frame (Z-axis lifting + X-axis movement), the lower die frame (X-axis movement) and the sewing machine head (Y-axis movement) can be flexibly adapted to different needle trace trajectories, and the adjustment process is fully automated, without the need to disassemble and fold the template, realizing one board with multiple uses, and the equipment automation level is improved through mechanism integration, meeting the efficient production needs of the garment manufacturing industry. Among them, the upper die frame can clamp or release the fabric under the drive of the first lifting mechanism; the upper die frame can also move along the X-axis direction under the drive of the first reciprocating mechanism (relative to the lower die frame), so that the upper die frame and the lower die frame are misaligned, that is, the upper die frame is exposed, which is convenient for people to place the fabric. After the fabric is placed, the upper die frame is reset under the drive of the first reciprocating mechanism until the upper die frame and the lower die frame are opposite, and then the upper die frame of the clothing template is lowered along the Z-axis direction under the drive of the first lifting mechanism to clamp the fabric with the lower die frame. Subsequently, the second reciprocating mechanism drives the lower die frame (the first lifting mechanism and the upper die frame as a whole) to move along the X-axis direction until it is close to the sewing machine head, the third reciprocating mechanism drives the sewing machine head to reciprocate along the Y-axis direction, so that the sewing machine head can form a compound motion with the movement of the clothing template in the X-axis direction, thereby sewing the fabric along the preset needle trace trajectory, realizing continuous adjustment and sewing operation of different needle trace trajectories without disassembling the template. It should be noted that the adjusting rod assembly is only installed on the sewing machine head when the needle trace trajectory needs to be adjusted, and the adjusting rod assembly needs to be removed after the adjustment is completed to facilitate subsequent sewing work. The function of the adjusting rod assembly is to adjust the needle trace trajectory of the clamping plates on the upper die frame and the lower die frame. When the needle trace trajectory needs to be adjusted, the seventh cylinder of the second lifting mechanism drives the sewing table to move downward along the Z-axis direction, and the two side guide rods are guided synchronously through the linear bearing to separate the sewing table from the second clamping plate to avoid interference with the clamping plate adjustment.

[0010] The adaptive track sewing machine can be further provided as follows: the upper die frame includes an upper pressing plate and an upper top plate arranged opposite to the upper pressing plate, a first sliding groove structure is arranged between the upper pressing plate and the upper top plate, a plurality of groups of first clamping plates are inserted at the first sliding groove structure, the upper top plate is linked with a first cylinder for driving the upper top plate to reciprocate towards the upper pressing plate, the body of the first cylinder is mounted on the upper pressing plate, and a first limiting mechanism corresponding to the first sliding groove structure is mounted on the upper pressing plate; the lower die frame includes a lower pressing plate and a lower top plate arranged opposite to the lower pressing plate, a second sliding groove structure is arranged between the lower pressing plate and the lower top plate, a plurality of groups of second clamping plates are inserted at the second sliding groove structure, the lower top plate is linked with a sixth cylinder for driving the lower top plate to reciprocate towards the lower pressing plate, the body of the sixth cylinder is mounted on the lower pressing plate, and a second limiting mechanism corresponding to the second sliding groove structure is mounted on the lower pressing plate.

[0011] Adopting the technical scheme, when the needle track is adjusted, firstly, the first cylinder drives the upper top plate to move away from the upper pressure plate, and then the first limiting mechanism is separated from the plurality of first clamping plates, and the plurality of first clamping plates can slide in the first sliding groove structure; the sixth cylinder drives the lower top plate to move away from the lower pressure plate, and then the second limiting mechanism is separated from the plurality of second clamping plates, and the plurality of second clamping plates can slide in the second sliding groove structure. Secondly, when the upper pressure plate is separated from the upper top plate, and the lower pressure plate is separated from the lower top plate, the adjusting rod assembly will drive each column of corresponding first clamping plates and second clamping plates (in this process, the second reciprocating mechanism will drive the lower mold frame and synchronously drive the upper mold frame to move along the X-axis direction) in the Y-axis direction (driven by the third reciprocating mechanism) to be driven synchronously, so that each column of corresponding first clamping plates and second clamping plates move in the first sliding groove structure and the second sliding groove structure respectively, and when the first clamping plates and the second clamping plates are adjusted, the needle track is finally formed. Then, the first cylinder drives the upper top plate to close the upper pressure plate, and the first limiting mechanism locks the first clamping plate to fix the first clamping plate in the first sliding groove structure, so as to realize the stability of the position of the first clamping plate in the sewing process (the second clamping plate is the same). As can be seen from the above, the adjusting rod assembly is directly installed on the sewing machine head, and the upper / lower top plate is automatically opened and closed by the first cylinder and the sixth cylinder, and is linked with the second reciprocating mechanism (X-axis) and the third reciprocating mechanism (Y-axis), so as to synchronously adjust the position of each column of corresponding first and second clamping plates. Without the complicated process of disassembling, folding and reassembling the template, the production efficiency is greatly improved. Further, the adjusting rod assembly "drives" the first and second clamping plates of each column synchronously, ensures that the tracks of each column of clamping plates are aligned, forms a closed needle track boundary, and avoids the distortion of the sewing line caused by the misalignment of the upper and lower tracks (such as double lines not coinciding and fabric wrinkling).

[0012] The adaptive track sewing machine can be further configured as follows: the first limiting mechanism comprises a plurality of groups of first adjusting members, the upper pressing plate is respectively provided with a group of first internally threaded connection holes corresponding to each group of first clamping plate pieces, each group of the first adjusting members is respectively threadedly connected with a group of the first internally threaded connection holes, the first internally threaded connection holes are distributed on the side edges of the first sliding groove structure and each group of the first internally threaded connection holes is respectively communicated with the first sliding groove structure, the first adjusting members are respectively provided with first steel balls at the end portions thereof facing the first sliding groove structure, the first adjusting members and the first steel balls constitute wave ball screws, the first clamping plate pieces are respectively uniformly provided with a plurality of groups of upper teeth on the end faces thereof facing the first steel balls, the first adjusting members extend out of the first internally threaded connection holes at the end portions thereof away from the first clamping plate pieces, and the first adjusting members are respectively connected with first stop nuts at the end portions thereof away from the first clamping plate pieces, the outer diameter of the first stop nuts is greater than the inner diameter of the first internally threaded connection holes; the second limiting mechanism comprises a plurality of groups of second adjusting members, the lower pressing plate is respectively provided with a group of second internally threaded connection holes corresponding to each group of second clamping plate pieces, each group of the second adjusting members is respectively threadedly connected with a group of the second internally threaded connection holes, the second internally threaded connection holes are distributed on the side edges of the second sliding groove structure and each group of the second internally threaded connection holes is respectively communicated with the second sliding groove structure, the second adjusting members are respectively provided with second steel balls at the end portions thereof facing the second sliding groove structure, the second adjusting members and the second steel balls constitute wave ball screws, the second clamping plate pieces are respectively uniformly provided with a plurality of groups of lower teeth on the end faces thereof facing the second steel balls, the second adjusting members extend out of the second internally threaded connection holes at the end portions thereof away from the second clamping plate pieces, and the second adjusting members are respectively connected with second stop nuts at the end portions thereof away from the second clamping plate pieces, the outer diameter of the second stop nuts is greater than the inner diameter of the second internally threaded connection holes.

[0013] The above technical scheme is adopted, and when assembling, the first adjusting member is rotated (threadedly connected with the first inner threaded hole on the side of the upper pressing plate) to make the first steel ball of the wave screw accurately press against the upper tooth of the first clamping plate under the pushing of the internal spring, and the first stop nut is tightened to lock the position of the first adjusting member. Similarly, the second adjusting member is threadedly connected through the second inner threaded hole to make the second steel ball press against the lower tooth of the second clamping plate and be locked by the second stop nut. When adjusting the needle track, the first cylinder drives the upper top plate to move away from the upper pressing plate, the first clamping plate is separated from the constraint of the first steel ball and can slide along the first sliding groove structure, and after adjustment is completed, the upper top plate is closed, the first steel ball is re-pressed against the upper tooth under the action of the spring to form locking; the second limiting mechanism completes the locking of the second clamping plate in the same way. During the sewing process, the first adjusting member is threadedly connected with the stop nut to prevent the upper and lower parts from moving up and down, the static friction force between the steel ball and the tooth resists lateral vibration, the spring buffers the instantaneous impact force, and the positions of the first and second clamping plates are stable. In the subsequent process of adjusting the needle track, under normal circumstances, the two adjusting members do not need to be operated, and only the two top plates and the pressing plate are separated to make the two clamping plates freely slide along the sliding groove structure to adjust the needle track, and after adjustment is completed, the two top plates and the pressing plate are closed. Further, the wave screw is a prior art, and a spring is usually arranged in the wave screw (the spring is arranged in the wave screw, and the lower end of the spring is pressed against the first steel ball), the first steel ball is pressed against the first clamping plate under the pushing of the spring, the spring of the wave screw further eliminates the influence of the "assembly tolerance", the steel ball is automatically adapted through slight compression of the spring during manual rotation of the adjusting member, the hand is convenient to rotate the adjusting member, and the spring can absorb the instantaneous impact force (such as the reaction force when the needle penetrates the fabric) during sewing.

[0014] The above self-adaptive track sewing machine can be further provided with: the upper pressing plate is further provided with a first pushing mechanism, the first pushing mechanism comprises a second cylinder and a first pushing plate connected with the output rod of the second cylinder, the body of the second cylinder is fixed on the upper pressing plate, each group of first clamping plates is respectively connected with a group of first pushing rods, and the first pushing plate is distributed between the upper pressing plate and the groups of first pushing rods; the lower pressing plate is further provided with a second pushing mechanism, the second pushing mechanism comprises a fifth cylinder and a second pushing plate connected with the output rod of the fifth cylinder, the body of the fifth cylinder is fixed on the lower pressing plate, each group of second clamping plates is respectively connected with a group of second pushing rods, and the second pushing plate is distributed between the lower pressing plate and the groups of second pushing rods.

[0015] According to the technical scheme, when the needle track needs to be adjusted, the first cylinder drives the upper top plate to move away from the upper pressing plate, the first limiting mechanism is separated from the first clamping plate, the second cylinder of the first pushing mechanism drives the first pushing plate to move, the first pushing plate synchronously pushes the whole row of first push rods and the first clamping plate to slide outward along the first sliding groove structure, the exposed length of the first clamping plate is increased to reserve the adjustment distance, and then the second cylinder drives the first pushing plate to automatically reset; meanwhile, the sixth cylinder drives the lower top plate to move away from the lower pressing plate, the second limiting mechanism is separated from the second clamping plate, the fifth cylinder of the second pushing mechanism drives the second pushing plate to move, the second pushing plate synchronously pushes the whole row of second push rods and the second clamping plate to slide outward along the second sliding groove structure, the exposed length of the second clamping plate is increased to reserve the adjustment distance, and then the fifth cylinder drives the second pushing plate to automatically reset. The purpose of the automatic resetting of the two pushing plates is to avoid affecting the position adjustment of the two clamping plates.

[0016] The adaptive track sewing machine can be further provided with the adjusting rod assembly, the upper top rod and the lower top rod arranged in sequence along the Z-axis direction, the same end of the upper top rod and the lower top rod being fixed with the connecting plate respectively, the sewing head comprising a sewing seat and a needle mechanism distributed above the sewing seat, one side of the sewing seat facing the lower die frame being provided with an open slot, the connecting plate being inserted into the open slot, and the connecting plate being detachably connected with the sewing seat through the fastener.

[0017] According to the technical scheme, when the needle track needs to be adjusted, the connecting plate of the adjusting rod assembly is inserted into the open slot of the sewing seat and locked through the fastener (preferably a standard part such as a bolt or a screw, which has good interchangeability and is convenient to disassemble), so that the upper top rod and the lower top rod arranged in sequence along the Z-axis correspond to the first clamping plate of the upper die frame and the second clamping plate of the lower die frame respectively. The fastener is preferably a standard part such as a bolt or a screw, which has good interchangeability and is convenient to disassemble.

[0018] The adaptive track sewing machine can be further provided with the first lifting mechanism, the first reciprocating mechanism and the second reciprocating mechanism. The first lifting mechanism comprises a first support frame, a third cylinder mounted on the first support frame, an output rod of the third cylinder being linked with the upper pressing plate, the upper pressing plate further being linked with a first sliding block, the first sliding block being slidingly matched with a first sliding rail, and the first sliding rail being fixed on the first support frame. The first reciprocating mechanism comprises a fourth cylinder mounted on the lower pressing plate, an output rod of the fourth cylinder being linked with the first support frame, the first support frame further being linked with a second sliding block, the second sliding block being slidingly matched with a second sliding rail, the second sliding rail being out-of-plane perpendicular to the first sliding rail, and the second sliding rail being fixed on the lower pressing plate. The lower pressing plate is linked with the second reciprocating mechanism.

[0019] Adopting the technical scheme, when the needle track needs to be adjusted, the first reciprocating mechanism pushes the upper die holder to move horizontally until the end positions of the whole row of first clamping plate pieces and the whole row of second clamping plate pieces on the two die holders are consistent; the top plate and the pressing plate on the two die holders are separated from each other, then the two rows of clamping plate pieces can move in the corresponding strip-shaped holes respectively, and then the two rows of clamping plate pieces are adjusted by the adjusting lever assembly until they are consistent with the needle track. Then the top plate and the pressing plate on each die holder are closed to each other, and the two rows of clamping plate pieces are respectively kept fixed at the corresponding sliding groove structures. After the adjustment of the needle track is completed, the first reciprocating mechanism drives the upper die holder to move in the reverse direction along the horizontal direction until the whole row of second clamping plate pieces on the lower die holder is exposed, so as to facilitate the placement of the fabric. After the placement of the fabric is completed, the first reciprocating mechanism drives the upper die holder to reset along the horizontal direction until the clamping plate pieces on the upper die holder correspond to the clamping plate pieces on the lower die holder, and then the first lifting mechanism drives the upper die holder to move downward as a whole until the two rows of clamping plate pieces clamp the fabric. The third cylinder in the first lifting mechanism drives the upper die holder to move along the vertical direction, so that the clamping gap between the first clamping plate pieces and the second clamping plate pieces (the upper top plate on the upper die holder and the lower top plate on the lower die holder also clamp the fabric) can be adjusted in real time according to the thickness of the fabric, completely replacing the fixed gap of the traditional hinged folding structure, which not only adapts to a wide range of fabric thicknesses, but also makes the clamping force uniform everywhere.

[0020] The self-adaptive track sewing machine can be further provided as follows: the second reciprocating mechanism comprises a clamping block linked with the lower pressing plate, a first transmission belt linked with the clamping block, a plurality of groups of first pulleys linked with the first transmission belt, a shaft linked with a group of the first pulleys, two ends of the shaft being rotatably installed on the rack, a second pulley linked with the shaft, a second transmission belt linked with the second pulley, a third pulley linked with an end of the second transmission belt away from the second pulley, and a first motor linked with the third pulley; the lower pressing plate is further linked with a third sliding block, the third sliding block being slidingly matched with a third sliding rail, and the third sliding rail being installed on the rack.

[0021] When the lower die holder needs to be driven to move reciprocally along the X-axis direction, the first motor is started 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 shaft to rotate synchronously, the shaft is rotatably installed on the rack through bearings and drives a plurality of groups of first pulleys to rotate, the first pulleys drive the clamping block to move along the X-axis direction through the first transmission belt, the clamping block drives the lower pressing plate to move synchronously, and the third sliding block linked with the lower pressing plate slides along the third sliding rail on the rack, so that the lower die holder moves reciprocally along the X-axis direction stably to form the needle track in cooperation with the movement of the upper die holder and the sewing machine head.

[0022] The adaptive track sewing machine can be further provided with the third reciprocating mechanism including a nut sleeve linked with the sewing machine head, a lead screw threadedly matched with the nut sleeve, and a second motor linked with the end of the lead screw, both ends of the lead screw being rotatably installed on the rack, the sewing machine head being further linked with a fourth sliding block, the fourth sliding block being slidably matched with a fourth sliding rail, and the fourth sliding rail being installed on the rack.

[0023] When the sewing machine head needs to be driven to reciprocate along the Y-axis, the second motor is started to rotate the lead screw, the lead screw drives the nut sleeve to move along the axial direction (Y-axis) through the thread cooperation, the nut sleeve drives the sewing machine head to move synchronously, and the fourth sliding block linked with the sewing machine head slides along the fourth sliding rail on the rack, so that the sewing machine head is stably and accurately reciprocated along the Y-axis to cooperate with the movement of the X-axis of the lower die frame and the relative movement of the upper die frame, and the sewing operation is completed along the preset needle trace.

[0024] The adaptive track sewing machine can be further provided with the second lifting mechanism including a seventh cylinder linked with the sewing table, and two groups of guide rods symmetrically distributed on both sides of the seventh cylinder, the body of the seventh cylinder being installed on the rack, a linear bearing being installed on the rack and sleeved on the outer periphery of the guide rod, and the upper end of the guide rod being linked with the sewing table.

[0025] When the needle trace 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 through the linear bearing, so that the sewing table is separated from the second clamping plate to avoid interfering 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 bearing to ensure that the sewing table is stably raised, until the sewing table is located below the second clamping plate and forms a support, and then the sewing machine head moves along the Y-axis, the lower die frame moves along the X-axis, and the sewing table assists in supporting the second clamping plate to resist the downward pressure in the sewing process, so as to ensure the stability of the needle trace.

[0026] The adaptive track sewing machine can be further provided with a plurality of groups of first strip-shaped holes corresponding to each group of first clamping plates, the plurality of groups of first strip-shaped holes being arranged in sequence on the end surface of the upper top plate facing the upper pressing plate, the first clamping plate comprising a first lower pressing piece in gap cooperation with the first strip-shaped hole, and the end portion of the first lower pressing piece being provided with a first pressing material portion extending out of the first strip-shaped hole and being bent and formed towards the lower die frame; the first clamping plate further comprises a first upper pressing piece fixedly connected with the first lower pressing piece, and a plurality of groups of upper teeth are uniformly distributed on the first upper pressing piece; the first sliding groove structure further comprises a first containing groove for containing a plurality of groups of first upper pressing pieces, and the first containing groove is distributed on the end surface of the upper pressing plate facing the upper top plate; the second sliding groove structure is provided with a plurality of groups of second strip-shaped holes corresponding to each group of second clamping plates, the plurality of groups of second strip-shaped holes are arranged in sequence on the end surface of the lower top plate facing the lower pressing plate, the second clamping plate comprises a second lower pressing piece in gap cooperation with the second strip-shaped hole, and the end portion of the second lower pressing piece is provided with a second pressing material portion extending out of the second strip-shaped hole and being bent and formed towards the upper die frame; the second clamping plate further comprises a second upper pressing piece fixedly connected with the second lower pressing piece, and a plurality of groups of lower teeth are uniformly distributed on the second upper pressing piece; the second sliding groove structure further comprises a second containing groove for containing a plurality of groups of second upper pressing pieces, and the second containing groove is distributed on the end surface of the lower pressing plate facing the lower top plate.

[0027] By adopting the technical scheme, the first clamping plate and the second clamping plate correspond to independent strip-shaped holes (first strip-shaped hole / second strip-shaped hole), the single clamping plate is independently adjusted without interference, and the complex sewing pattern is adapted; both of them enhance the structural strength through the fixedly connected pressing pieces (first upper pressing piece and first lower pressing piece / second upper pressing piece and second lower pressing piece), so that the end pressing material portion (first pressing material portion / second pressing material portion) is pressed tightly to the fabric when the template is closed. The first pressing material portion is bent towards the lower die frame, and the second pressing material portion is bent towards the upper die frame, thereby avoiding the gap problem caused by the thickness of the upper top plate and the lower top plate, and ensuring that the pressing material portion accurately clamps the fabric at the needle track.

[0028] The present application has the following advantages: through the cooperation of the multi-axis linkage mechanism (X-axis double drive, Y-axis independent drive, Z-axis lifting) and the automatic clamping plate adjusting module (adjusting rod assembly + limiting mechanism), the tedious process of disassembling, folding and repeatedly installing the traditional template is not needed, and the needle track adjusting efficiency is greatly improved.

[0029] The three directions of X-axis, Y-axis and Z-axis mentioned in the present application are for the convenience of better understanding of the present application for those skilled in the art, the X-axis can refer to the moving direction of the second sliding block (both are parallel to each other), the Y-axis can refer to the fourth sliding rail (both are parallel to each other), and the Z-axis can refer to the moving direction of the first sliding block (both are parallel to each other).

[0030] The application will be described in further detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 Figure 1 is a schematic diagram of the overall machine according to an embodiment of the application.

[0032] Figure 2 Figure 2 is a schematic diagram of the upper die holder, lower die holder and sewing table structure according to an embodiment of the application. Figure 1

[0033] Figure 3 Figure 3 is a schematic diagram of the upper die holder, lower die holder and sewing table structure according to an embodiment of the application. Figure 2

[0034] Figure 4 Figure 4 is a schematic diagram of the upper die holder, lower die holder structure according to an embodiment of the application. Figure 1

[0035] Figure 5 Figure 5 is a schematic diagram of the upper die holder, lower die holder structure according to an embodiment of the application. Figure 2

[0036] Figure 6 Figure 6 is a schematic diagram of the upper die holder structure according to an embodiment of the application.

[0037] Figure 7 Figure 7 is a schematic diagram of the lower die holder structure according to an embodiment of the application.

[0038] Figure 8 Figure 8 is a schematic diagram of the upper die holder according to an embodiment of the application.

[0039] Figure 9 Figure 9 is a schematic diagram of the lower die holder according to an embodiment of the application.

[0040] Figure 10 Figure 10 is a schematic diagram of the enlarged view of A in Figure 4.

[0041] Figure 11 Figure 11 is a schematic diagram of the installation of the adjusting lever assembly according to an embodiment of the application.

[0042] Figure 12 Figure 12 is a schematic diagram of the first adjusting member according to an embodiment of the application.

[0043] Figure 13 Figure 13 is a schematic diagram of the first clamping plate and second clamping plate structure according to an embodiment of the application.

[0044] ​​​​Label notes: upper die holder 1, lower die holder 2; first lifting mechanism 3, first support frame 301, first sliding block 302, third cylinder 303; first reciprocating mechanism 4, fourth cylinder 401, second sliding block 402; first clamping plate 5, upper tooth 501, first push rod 502, first lower pressing piece 503, first upper pressing piece 504, first pressing part 505; upper pressing plate 6, first internal threaded connection hole 601, first let go of hole 602; upper top plate 7; first adjusting part 8, first steel ball 801; first sliding groove structure 9, first strip-shaped hole 901, first accommodating 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 pressing piece 1403, second pressing part 1404, second upper pressing piece 1405; lower pressing plate 15, second internal threaded connection hole 1501, second let go of hole 1502; lower top plate 16; second sliding groove structure 17, second strip-shaped hole 1701, second accommodating groove 1702; sixth cylinder 18; second adjusting part 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 head 23, sewing seat 2301, needle mechanism 2302, opening groove 2303; third reciprocating mechanism 24, nut sleeve 2401, screw rod 2402, second motor 2403, fourth sliding rail 2404; adjusting rod assembly 25, upper top rod 2501, lower top rod 2502, connecting plate 2503; sewing table 26; second lifting mechanism 27, seventh cylinder 2701, guide rod 2702, linear bearing 2703. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be apparently and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0046] As Figures 1 to 13The adaptive track sewing machine shown includes a frame, a clothing template for clamping fabric, a sewing head 23 for sewing fabric along the needle trace on the clothing template, and a sewing table 26 distributed between the clothing template and the sewing head 23, the clothing template including oppositely arranged upper and lower die racks 1 and 2, the upper die rack 1 being linked with a first lifting mechanism 3 for driving the upper die rack 1 to reciprocally move along the Z-axis direction, the first lifting mechanism 3 being linked with a first reciprocating mechanism 4 for driving the first lifting mechanism 3 and the upper die rack 1 to synchronously reciprocally move along the X-axis direction, the first reciprocating mechanism 4 being installed on the lower die rack 2, the frame being provided with a second reciprocating mechanism 22 for driving the lower die rack 2 to reciprocally move along the X-axis direction and a third reciprocating mechanism 24 for driving the sewing head 23 to reciprocally move along the Y-axis direction.

[0047] The present scheme can flexibly adapt to different needle traces through multi-axis linkage of the upper die rack 1 (Z-axis lifting + X-axis movement), the lower die rack 2 (X-axis movement), and the sewing head 23 (Y-axis movement), and the adjustment process is fully automated without the need to disassemble and fold the template, realizing one board with multiple uses, and improving the automation level of the equipment through mechanism integration, which meets the efficient production needs of the garment manufacturing industry. The upper die rack 1 can clamp or release the fabric under the drive of the first lifting mechanism 3; the upper die rack 1 can also move along the X-axis direction relative to the lower die rack 2 under the drive of the first reciprocating mechanism 4, so that the upper die rack 1 and the lower die rack 2 are misaligned, i.e., the upper die rack 1 is exposed, facilitating people to place the fabric. After the fabric is placed, the upper die rack 1 is reset under the drive of the first reciprocating mechanism 4 until the upper die rack 1 and the lower die rack 2 are opposite, and then the upper die rack 1 of the clothing template is lowered along the Z-axis direction under the drive of the first lifting mechanism 3 to clamp the fabric with the lower die rack 2. Subsequently, the second reciprocating mechanism 22 drives the lower die rack 2 (the first lifting mechanism 3 and the upper die rack 1 as a whole) to move along the X-axis direction until it is close to the sewing head 23, and the third reciprocating mechanism 24 drives the sewing head 23 to reciprocally move along the Y-axis direction, so that the sewing head 23 can form a compound motion in cooperation with the movement of the clothing template in the X-axis direction, thereby sewing the fabric along the preset needle trace, realizing continuous adjustment and sewing operation of different needle traces without disassembling the template.

[0048] The upper die frame 1 comprises an upper pressing plate 6 and an upper top plate 7 arranged opposite to the upper pressing plate 6, a first sliding groove structure 9 is arranged between the upper pressing plate 6 and the upper top plate 7, a plurality of groups of first clamping plate pieces 5 are inserted at the first sliding groove structure 9, the upper top plate 7 is linked with a first air cylinder 13 for driving the upper top plate 7 to reciprocate towards the upper pressing plate 6, the body of the first air cylinder 13 is mounted on the upper pressing plate 6, and a first limiting mechanism corresponding to the first sliding groove structure 9 is mounted on the upper pressing plate 6; the lower die frame 2 comprises a lower pressing plate 15 and a lower top plate 16 arranged opposite to the lower pressing plate 15, a second sliding groove structure 17 is arranged between the lower pressing plate 15 and the lower top plate 16, a plurality of groups of second clamping plate pieces 14 are inserted at the second sliding groove structure 17, and the lower top plate 16 is linked with a sixth air cylinder 18 for driving the lower top plate 16 to reciprocate towards the lower pressing plate 15, the body of the sixth air cylinder 18 is mounted on the lower pressing plate 15, and a second limiting mechanism corresponding to the second sliding groove structure 17 is mounted on the lower pressing plate 15;

[0049] The sewing machine head 23 is detachably mounted with a tuning rod assembly 25 for adjusting the positions of the plurality of groups of first clamping plate pieces 5 and the positions of the plurality of groups of second clamping plate pieces 14 to be consistent with the shape of the needle trace.

[0050] It should be noted that the adjusting lever assembly 25 is only installed on the sewing machine head 23 when the needle track needs to be adjusted, and the adjusting lever assembly 25 needs to be removed after the adjustment is completed to facilitate subsequent sewing work. When adjusting the needle track, first, the first cylinder 13 drives the upper top plate 7 to move away from the upper pressure plate 6, and then the first limiting mechanism is separated from the plurality of first clamping plate pieces 5, so that the plurality of first clamping plate pieces 5 can slide in 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 is separated from the plurality of second clamping plate pieces 14, so that the plurality of second clamping plate pieces 14 can slide in the second sliding groove structure 17. Secondly, after the upper pressure plate 6 and the upper top plate 7 are separated, and the lower pressure plate 15 and the lower top plate 16 are separated, the adjusting lever assembly 25 will drive each column of corresponding first clamping plate pieces 5 and second clamping plate pieces 14 in the Y-axis direction (driven by the third reciprocating mechanism 24) in sequence and synchronously (in this process, the second reciprocating mechanism 22 drives the lower die frame 2 and synchronously drives the upper die frame 1 to move along the X-axis direction), so that each column of corresponding first clamping plate pieces 5 and second clamping plate pieces 14 move in the first sliding groove structure 9 and the second sliding groove structure 17 respectively, and when the entire row of first clamping plate pieces 5 and the entire row of second clamping plate pieces 14 are adjusted, the needle track is finally formed. Then, the first cylinder 13 drives the upper top plate 7 to close the upper pressure plate 6, and the first limiting mechanism locks the first clamping plate piece 5 to fix the first clamping plate piece 5 in the first sliding groove structure 9, so as to realize the stable and unchanged position of the first clamping plate piece 5 during sewing (the second clamping plate piece 14 is the same).The first limiting mechanism comprises a plurality of first adjusting members 8, the upper pressing plate 6 is provided with a group of first internally threaded connecting holes 601 corresponding to each group of first clamping plate pieces 5, each group of first adjusting members 8 is in threaded connection with a group of first internally threaded connecting holes 601, the first internally threaded connecting holes 601 are distributed on the side edges of the first sliding groove structure 9 and each group of first internally threaded connecting holes 601 is in communication with the first sliding groove structure 9, the first adjusting members 8 are provided with first steel balls 801 at the end portions thereof facing the first sliding groove structure 9, the first adjusting members 8 and the first steel balls 801 constitute wave ball screws, the first clamping plate pieces 5 are uniformly provided with a plurality of groups of upper teeth 501 on the end faces thereof facing the first steel balls 801, the end portions of the first adjusting members 8 extending out of the first internally threaded connecting holes 601 are connected with first stop nuts 10, the outer diameter of the first stop nuts 10 is greater than the inner diameter of the first internally threaded connecting holes 601; the second limiting mechanism comprises a plurality of second adjusting members 19, the lower pressing plate 15 is provided with a group of second internally threaded connecting holes 1501 corresponding to each group of second clamping plate pieces 14, each group of second adjusting members 19 is in threaded connection with a group of second internally threaded connecting holes 1501, the second internally threaded connecting holes 1501 are distributed on the side edges of the second sliding groove structure 17 and each group of second internally threaded connecting holes 1501 is in communication with the second sliding groove structure 17, the second adjusting members 19 are provided with second steel balls at the end portions thereof facing the second sliding groove structure 17, the second adjusting members 19 and the second steel balls constitute wave ball screws, the second clamping plate pieces 14 are uniformly provided with a plurality of groups of lower teeth 1401 on the end faces thereof facing the second steel balls, the end portions of the second adjusting members 19 extending out of the second internally threaded connecting holes 1501 are connected with second stop nuts, the outer diameter of the second stop nuts is greater than the inner diameter of the second internally threaded connecting holes 1501.

[0051] During assembly, by rotating the first adjusting member 8 (threaded with the first inner threaded connection hole 601 on the side edge of the upper pressing plate 6), the first steel ball 801 of the wave screw is precisely pressed against the upper tooth 501 of the first clamping plate 5 under the internal spring thrust, and the first stop nut 10 is tightened to lock the position of the first adjusting member 8. Similarly, the second adjusting member 19 is threaded with the second inner 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 trace, the first cylinder 13 drives the upper top plate 7 away from the upper pressing 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 sliding groove structure 9. After adjustment, the upper top plate 7 is closed, 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 completes the locking of the second clamping plate 14. During sewing, the first adjusting member 8 is prevented from moving up and down by threaded connection with the stop nut, the static friction force between the steel ball and the tooth resists lateral vibration, and the spring cushions the instantaneous impact force, ensuring the stable position of the first clamping plate 5 and the second clamping plate 14. In the subsequent process of adjusting the needle trace, under normal circumstances, the two adjusting members do not need to be operated, only the two top plates and pressing plates are separated, so that the two rows of clamping plates can move in the corresponding strip-shaped holes, and then the two rows of clamping plates are adjusted by using the adjusting lever assembly 25 until they are consistent with the needle trace. Then the top plate and the pressing plate on each mold frame are closed to each other, and the two rows of clamping plates are respectively fixed in the corresponding sliding groove structures. After the adjustment of the needle trace is completed, the first reciprocating mechanism 4 drives the upper mold frame 1 to move in the reverse direction along the horizontal 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 drives the upper mold frame 1 to reset along the horizontal direction until the clamping plates on the upper mold frame 1 correspond to the clamping plates on the lower mold frame 2, and the first lifting mechanism 3 drives the upper mold frame 1 to move downward as a whole 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 along the vertical direction, which 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 also clamp the fabric) in real time according to the thickness of the fabric, completely replacing the fixed gap of the traditional hinged folding structure, not only adapting to a wide range of fabric thicknesses, but also evenly clamping the fabric.

[0052] The first pushing mechanism is arranged on the upper pressing plate 6 and comprises a second cylinder 11 and a first pushing plate 12 connected with the output rod of the second cylinder 11, the body of the second cylinder 11 is fixed on the upper pressing plate 6, each group of the first clamping plate pieces 5 is respectively connected with a group of first pushing rods 502, and the first pushing plate 12 is distributed between the upper pressing plate 6 and the groups of first pushing rods 502.

[0053] When it is necessary to adjust the needle trace, the first cylinder 13 drives the upper top plate 7 to move away from the upper pressing plate 6, the first limiting mechanism is separated from the first clamping plate piece 5, the second cylinder 11 of the first pushing mechanism drives the first pushing plate 12 to move, and the first pushing plate 12 synchronously pushes the whole row of first pushing rods 502 and first clamping plate pieces 5 to slide along the first sliding groove structure 9 to the outside, so that the exposed length of the first clamping plate piece 5 is increased to reserve the adjustment distance, and then the second cylinder 11 drives the first pushing plate 12 to automatically reset; meanwhile, the sixth cylinder 18 drives the lower top plate 16 to move away from the lower pressing plate 15, the second limiting mechanism is separated from the second clamping plate piece 14, the fifth cylinder 21 of the second pushing mechanism drives the second pushing plate 20 to move, and the second pushing plate 20 synchronously pushes the whole row of second pushing rods 1402 and second clamping plate pieces 14 to slide along the second sliding groove structure 17 to the outside, so that the exposed length of the second clamping plate piece 14 is increased to reserve the adjustment distance, and then the fifth cylinder 21 drives the second pushing plate 20 to automatically reset. The purpose of the automatic resetting of the two pushing plates is to avoid affecting the position adjustment of the two clamping plate pieces.

[0054] The adjusting rod assembly 25 comprises a connecting plate 2503 and an upper top rod 2501 and a lower top rod 2502 arranged in sequence along the Z-axis direction, the same end of the upper top rod 2501 and the lower top rod 2502 is respectively fixed with the connecting plate 2503, the sewing machine head 23 comprises a sewing seat 2301 and a needle head mechanism 2302 distributed above the sewing seat 2301, the sewing seat 2301 is provided with an open groove 2303 on the side facing the lower die frame 2, the connecting plate 2503 is inserted into the open groove 2303, and the connecting plate 2503 is detachably connected with the sewing seat 2301 through a fastener.

[0055] When it is necessary to adjust the needle trace, the connecting plate 2503 of the adjusting rod assembly 25 is inserted into the open groove 2303 of the sewing seat 2301 and is locked through a fastener, so that the upper top rod 2501 and the lower top rod 2502 arranged in sequence along the Z-axis direction correspond to the first clamping plate piece 5 of the upper die frame 1 and the second clamping plate piece 14 of the lower die frame 2 respectively. The fastener is preferably a standard part such as a bolt or a screw, has good interchangeability, and is convenient to disassemble.

[0056] The first lifting mechanism 3 comprises a first support frame 301, a third cylinder 303 mounted on the first support frame 301, an output rod of the third cylinder 303 being connected with an upper pressing plate 6, the upper pressing plate 6 being further connected with a first sliding block 302, the first sliding block 302 being slidingly fitted with a first sliding rail, the first sliding rail being fixed on the first support frame 301; the first reciprocating mechanism 4 comprises a fourth cylinder 401 mounted on a lower pressing plate 15, an output rod of the fourth cylinder 401 being connected with the first support frame 301, the first support frame 301 being further connected with a second sliding block 402, the second sliding block 402 being slidingly fitted with a second sliding rail, the second sliding rail being perpendicular to the first sliding rail, the second sliding rail being fixed on the lower pressing plate 15; the lower pressing plate 15 being connected with the second reciprocating mechanism 22.

[0057] When the needle trace needs to be adjusted, the first reciprocating mechanism 4 pushes the upper die frame 1 to move horizontally until the end positions of the whole row of first clamping plate pieces 5 and the whole row of second clamping plate pieces 14 on the two die frames are consistent; the top plate and the pressing plate on each die frame are separated from each other, so that the two rows of clamping plate pieces can move in the corresponding strip-shaped holes respectively, and then the two rows of clamping plate pieces are adjusted by using the adjusting lever assembly 25 until they are consistent with the needle trace. Then the top plate and the pressing plate on each die frame are closed to each other, and the two rows of clamping plate pieces are respectively fixed in the corresponding sliding groove structures. After the adjustment of the needle trace is completed, the first reciprocating mechanism 4 drives the upper die frame 1 to move in the reverse direction along the horizontal direction until the whole row of second clamping plate pieces 14 on the lower die frame 2 is exposed, so as to facilitate the placement of the fabric. After the fabric is placed, the first reciprocating mechanism 4 drives the upper die frame 1 to reset along the horizontal direction until the clamping plate pieces on the upper die frame 1 correspond to the clamping plate pieces on the lower die frame 2, and the first lifting mechanism 3 drives the upper die frame 1 to move downward as a whole until the two rows of clamping plate pieces clamp the fabric. The third cylinder 303 in the first lifting mechanism 3 drives the upper die frame 1 to move along the vertical direction, so as to adjust the clamping gap between the first clamping plate pieces 5 and the second clamping plate pieces 14 (the upper top plate 7 on the upper die frame 1 and the lower top plate 16 on the lower die frame 2 also clamp the fabric) in real time according to the thickness of the fabric, completely replacing the fixed gap of the traditional hinged folding structure, which not only adapts to a wide range of fabric thicknesses, but also uniformly clamps the fabric.

[0058] The second reciprocating mechanism 22 comprises a clamping block 2201 connected with the lower pressing plate 15, a first transmission belt 2202 connected with the clamping block 2201, a plurality of groups of first pulleys connected with the first transmission belt 2202, a group of the first pulleys connected with a rotating shaft 2203, both ends of the rotating shaft 2203 being rotatably installed on the frame, the rotating shaft 2203 further connected with a second pulley, the second pulley connected with a second transmission belt 2204, the end of the second transmission belt 2204 away from the second pulley connected with a third pulley, the third pulley connected with a first motor 2205; the lower pressing plate 15 further connected with a third sliding block, the third sliding block slidingly fitted with a third sliding rail, the third sliding rail being installed on the frame.

[0059] When it is needed to drive the lower mold frame 2 to reciprocate along the X-axis direction, the first motor 2205 is started 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 synchronously rotate, the rotating shaft 2203 at both ends is rotatably installed on the frame through bearings and drives a plurality of groups of first pulleys to rotate, the first pulleys drive the clamping block 2201 to move along the X-axis direction through the first transmission belt 2202, the clamping block 2201 drives the lower pressing plate 15 to synchronously move, at the same time, the third sliding block connected with the lower pressing plate 15 slides along the third sliding rail on the frame, and the stable reciprocating movement of the lower mold frame 2 in the X-axis direction is realized, so as to form the needle tracing trajectory in cooperation with the movement of the upper mold frame 1 and the sewing machine head 23.

[0060] The third reciprocating mechanism 24 comprises a nut sleeve 2401 connected with the sewing machine head 23, a lead screw 2402 threadedly matched with the nut sleeve 2401, and a second motor 2403 connected with the end of the lead screw 2402, both ends of the lead screw 2402 being rotatably installed on the frame, the sewing machine head 23 further connected with a fourth sliding block, the fourth sliding block slidingly fitted with a fourth sliding rail 2404, the fourth sliding rail 2404 being installed on the frame.

[0061] When it is needed to drive the sewing machine head 23 to reciprocate along the Y-axis direction, the second motor 2403 is started and drives the lead screw 2402 to rotate, the lead screw 2402 drives the nut sleeve 2401 to move along the axial direction (Y-axis) through the thread cooperation, the nut sleeve 2401 drives the sewing machine head 23 to synchronously move, at the same time, the fourth sliding block connected with the sewing machine head 23 slides along the fourth sliding rail 2404 on the frame, and the stable and accurate reciprocating movement of the sewing machine head 23 in the Y-axis direction is realized, so as to complete the sewing work along the preset needle tracing trajectory in cooperation with the X-axis movement of the lower mold frame 2 and the relative movement of the upper mold frame 1.

[0062] The sewing table 26 is linked with a second lifting mechanism 27 for driving the sewing table 26 to reciprocate along the Z-axis direction, the second lifting mechanism 27 comprises a seventh cylinder 2701 linked with the sewing table 26, two groups of guide rods 2702 symmetrically distributed on both sides of the seventh cylinder 2701, the body of the seventh cylinder 2701 is installed on a rack, a linear bearing 2703 is installed on the rack and sleeved on the outer periphery of the guide rod 2702, and the upper end of the guide rod 2702 is linked with the sewing table 26.

[0063] When it is necessary to adjust the needle trace, the seventh cylinder 2701 of the second lifting mechanism 27 drives the sewing table 26 to move downward along the Z-axis direction, the two guide rods 2702 are synchronously guided through the linear bearing 2703, so that the sewing table 26 is separated from the second clamping plate 14 to avoid interference with the clamping plate adjustment; after the adjustment is completed, the seventh cylinder 2701 drives the sewing table 26 to move upward along the Z-axis, the guide rod 2702 slides in the linear bearing 2703 to ensure that the sewing table 26 stably rises, until the sewing table 26 is located below the second clamping plate 14 and forms a support, then the sewing head 23 moves along the Y-axis, the lower mold frame 2 moves along the X-axis, and the sewing table 26 assists in supporting the second clamping plate 14 to resist the downward pressure in the sewing process, so as to ensure the stability of the needle trace.

[0064] The first sliding groove structure 9 is respectively provided with a group of first strip-shaped holes 901 corresponding to each group of first clamping plate pieces 5. A plurality of groups of the first strip-shaped holes 901 are sequentially arranged on the end face of the upper top plate 7 facing the upper pressing plate 6. The first clamping plate piece 5 comprises a first lower pressing piece 503 in gap cooperation with the first strip-shaped hole 901. The end portion of the first lower pressing piece 503 is provided with a first pressing material portion 505 extending out of the first strip-shaped hole 901 and bent towards the lower die frame 2. The first clamping plate piece 5 further comprises a first upper pressing piece 504 fixedly connected with the first lower pressing piece 503. A plurality of groups of the upper teeth 501 are uniformly distributed on the first upper pressing piece 504. The first sliding groove structure 9 further comprises a first containing groove 902 for containing a plurality of groups of the first upper pressing piece 504. The first containing groove 902 is distributed on the end face of the upper pressing plate 6 facing the upper top plate 7. The second sliding groove structure 17 is respectively provided with a group of second strip-shaped holes 1701 corresponding to each group of second clamping plate pieces 14. A plurality of groups of the second strip-shaped holes 1701 are sequentially arranged on the end face of the lower top plate 16 facing the lower pressing plate 15. The second clamping plate piece 14 comprises a second lower pressing piece 1403 in gap cooperation with the second strip-shaped hole 1701. The end portion of the second lower pressing piece 1403 is provided with a second pressing material portion 1404 extending out of the second strip-shaped hole 1701 and bent towards the upper die frame 1. The second clamping plate piece 14 further comprises a second upper pressing piece 1405 fixedly connected with the second lower pressing piece 1403. A plurality of groups of the lower teeth 1401 are uniformly distributed on the second upper pressing piece 1405. The second sliding groove structure 17 further comprises a second containing groove 1702 for containing a plurality of groups of the second upper pressing piece 1405. The second containing groove 1702 is distributed on the end face of the lower pressing plate 15 facing the lower top plate 16.

[0065] The first clamping plate piece 5 and the second clamping plate piece 14 each correspond to an independent strip-shaped hole (first strip-shaped hole 901 / second strip-shaped hole 1701), realizing independent adjustment of a single clamping plate piece without interference, and adapting to complex sewing patterns. Both of them enhance the structural strength through the fixedly connected pressing pieces (first upper pressing piece 504 and first lower pressing piece 503 / second upper pressing piece 1405 and second lower pressing piece 1403), so that the end pressing material portion (first pressing material portion 505 / second pressing material portion 1404) is pressed tightly against the fabric when the template is closed. Among them, the first pressing material portion 505 is bent towards the lower die frame 2, and the second pressing material portion 1404 is bent towards the upper die frame 1, respectively avoiding the gap problem caused by the thickness of the upper top plate 7 and the lower top plate 16, and ensuring that the pressing material portion accurately clamps the fabric needle track.

[0066] The upper pressing plate 6 is provided with a first accommodating hole 602 corresponding to the output rod of the first cylinder 13, and the output rod of the first cylinder 13 passes through the first accommodating hole 602 until being connected with the upper top plate 7. The first cylinder 13 can be directly installed on the upper pressing plate 6, and the first accommodating hole 602 realizes the connection between the output end of the first cylinder 13 and the upper top plate 7, and guides the movement of the output rod of the first cylinder 13, thereby improving the movement stability of the upper top plate 7. The lower pressing plate 15 is provided with a second accommodating hole 1502 corresponding to the output rod of the sixth cylinder 18, and the output rod of the sixth cylinder 18 passes through the second accommodating hole 1502 until being connected with the lower top plate 16. The sixth cylinder 18 can be directly installed on the lower pressing plate 15, and the second accommodating hole 1502 realizes the connection between the output end of the sixth cylinder 18 and the lower top plate 16, and guides the movement of the output rod of the sixth cylinder 18, thereby improving the movement stability of the lower top plate 16.

[0067] The needle trace adjusting method is as follows: the second lifting mechanism 27 drives the sewing table 26 to move downward to avoid interference with the two rows of clamping plate pieces. The connecting plate 2503 of the adjusting lever assembly 25 is inserted into the opening slot 2303 of the sewing base 2301, and is locked by a fastener, so that the upper top rod 2501 and the lower top rod 2502 arranged along the Z axis correspond to the first clamping plate piece 5 and the second clamping plate piece 14 respectively. The first cylinder 13 drives the upper top plate 7 to move away from the upper pressing plate 6, the first limiting mechanism is separated from the first clamping plate piece 5, and the first clamping plate piece 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 pressing plate 15, the second limiting mechanism is separated from the second clamping plate piece 14, and the second clamping plate piece 14 can slide along the second sliding groove structure 17. The second cylinder 11 of the first push mechanism drives the first push plate 12 to move, synchronously pushing the whole row of first push rods 502 and the first clamping plate piece 5 to slide outward along the first sliding groove structure 9, increasing the exposed length of the first clamping plate piece 5, and then the second cylinder 11 drives the first push plate 12 to automatically reset; the fifth cylinder 21 of the second push mechanism drives the second push plate 20 to move, synchronously pushing the whole row of second push rods 1402 and the second clamping plate piece 14 to slide outward along the second sliding groove structure 17, increasing the exposed length of the second clamping plate piece 14, and then the fifth cylinder 21 drives the second push plate 20 to automatically reset. The third reciprocating mechanism 24 drives the sewing head 23 to move along the Y axis, synchronously moving the adjusting lever assembly 25, the upper top rod 2501 pushes the corresponding first clamping plate piece 5 along the first slot hole 901 in the first sliding groove structure 9 column by column, and the lower top rod 2502 synchronously pushes the corresponding second clamping plate piece 14 along the second slot hole 1701 in the second sliding groove structure 17 column by column; during the adjusting process, the second reciprocating mechanism 22 drives the lower mold frame 2 (including the upper mold frame 1) to move along the X axis, cooperates with the Y axis movement of the adjusting lever assembly 25, so that each column of first clamping plate pieces 5 and second clamping plate pieces 14 form a preset needle trace. After the adjustment is completed, the first cylinder 13 drives the upper top plate 7 to close with the upper pressing plate 6, and the first adjusting piece 8 realizes the position fixation of the first clamping plate piece 5; the sixth cylinder 18 drives the lower top plate 16 to close with the lower pressing plate 15, and the second adjusting piece 19 realizes the position fixation of the second clamping plate piece 14; the adjusting lever assembly 25 is disassembled, and the needle trace adjustment is completed.

[0068] After the needle trace 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 along the second slide rail transversely, so that the upper mold frame 1 is misaligned with the lower mold frame 2, and the second clamping plate 14 of the lower mold frame 2 is exposed, thereby facilitating the placement of the fabric. After the fabric is placed, the first reciprocating mechanism 4 drives the upper mold frame 1 to return to the original position, so that the first clamping plate 5 corresponds to the second clamping plate 14; the third cylinder 303 of the first lifting mechanism 3 drives the upper pressing plate 6 to move downward along the first slide rail (fixed to the first support frame 301), and the first pressing part 505 cooperates with the second pressing part 1404 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 head 23 to move along the Y-axis, thereby finally converting into the action of sewing the fabric along the needle trace. After sewing is completed, the first lifting mechanism 3 drives the upper mold frame 1 to move upward, thereby releasing the fabric; the second reciprocating mechanism 22 drives the lower mold frame 2 to return to the original position, and the second lifting mechanism 27 drives the sewing table 26 to move downward, thereby 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 clothing template comprises oppositely arranged upper and lower mold frames, the upper mold frame is linked with a first lifting mechanism for driving the upper mold frame to reciprocate along the Z-axis direction, the first lifting mechanism is linked with a first reciprocating mechanism for driving the first lifting mechanism and the upper mold frame to synchronously reciprocate 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 mounted with a tuning rod assembly, and the sewing table is linked with a second lifting mechanism for driving the sewing table to reciprocate along the Z-axis direction; The upper mold frame comprises an upper pressing plate and an upper top plate arranged opposite to the upper pressing plate, a first sliding groove structure is arranged between the upper pressing plate and the upper top plate, a plurality of groups of first clamping plate pieces are inserted at the first sliding groove structure, the upper top plate is linked with a first cylinder for driving the upper top plate to reciprocate towards the upper pressing plate, the body of the first cylinder is mounted on the upper pressing plate, and the upper pressing plate is mounted with a first limiting mechanism corresponding to the first sliding groove structure; The lower mold frame comprises a lower pressing plate and a lower top plate arranged opposite to the lower pressing plate, a second sliding groove structure is arranged between the lower pressing plate and the lower top plate, a plurality of groups of second clamping plate pieces are inserted at the second sliding groove structure, the lower top plate is linked with a sixth cylinder for driving the lower top plate to reciprocate towards the lower pressing plate, the body of the sixth cylinder is mounted on the lower pressing plate, and the lower pressing plate is mounted with a second limiting mechanism corresponding to the second sliding groove structure; The first limiting mechanism comprises a plurality of groups of first adjusting pieces, the upper pressing plate is provided with a group of first internally threaded connection holes corresponding to each group of first clamping plate pieces, each group of first adjusting pieces is respectively threadedly connected with a group of first internally threaded connection holes, the first internally threaded connection holes are distributed on the side edges of the first sliding groove structure and each group of first internally threaded connection holes is respectively communicated with the first sliding groove structure, the end of the first adjusting piece towards the first sliding groove structure is provided with a first steel ball, the first adjusting piece and the first steel ball form a wave ball screw, the end face of the first clamping plate piece towards the first steel ball is uniformly provided with a plurality of groups of upper teeth, the end of the first adjusting piece away from the first clamping plate piece extends out of the first internally threaded connection hole, and the end of the first adjusting piece away from the first clamping plate piece is connected with a first stop nut, and the outer diameter of the first stop nut is greater than the inner diameter of the first internally threaded connection hole. The second limiting mechanism comprises a plurality of groups of second adjusting members, the lower pressing plate is respectively provided with a group of second internally threaded connection holes corresponding to each group of second clamping plate pieces, each group of second adjusting members is respectively screwed with a group of second internally threaded connection holes, the second internally threaded connection holes are distributed on the side edges of the second sliding groove structure and each group of second internally threaded connection holes is respectively communicated with the second sliding groove structure, the end of the second adjusting member facing the second sliding groove structure is provided with a second steel ball, the second adjusting member and the second steel ball form a wave ball screw, the end surface of the second clamping plate piece facing the second steel ball is uniformly distributed with a plurality of groups of lower teeth, the end of the second adjusting member away from the second clamping plate piece extends out of the second internally threaded connection hole, and the end of the second adjusting member away from the second clamping plate piece is connected with a second stop nut, the outer diameter of the second stop nut is greater than the inner diameter of the second internally threaded connection hole.

2. The self-adaptive track sewing machine according to claim 1, characterized in that: The upper pressing plate is further provided with a first pushing mechanism, the first pushing mechanism comprises a second air cylinder and a first pushing plate connected with the output rod of the second air cylinder, the body of the second air cylinder is fixed on the upper pressing plate, each group of first clamping plate pieces is respectively connected with a group of first pushing rods, and the first pushing plate is distributed between the upper pressing plate and the plurality of groups of first pushing rods; The lower pressing plate is further provided with a second pushing mechanism, the second pushing mechanism comprises a fifth air cylinder and a second pushing plate connected with the output rod of the fifth air cylinder, the body of the fifth air cylinder is fixed on the lower pressing plate, each group of second clamping plate pieces is respectively connected with a group of second pushing rods, and the second pushing plate is distributed between the lower pressing plate and the plurality of groups of second pushing rods.

3. The adaptive orbital stitcher of claim 1 or 2, wherein: The adjusting rod assembly comprises a connecting plate and an upper top rod and a lower top rod arranged in sequence along the Z-axis direction, the same end of the upper top rod and the lower top rod is respectively fixed with the connecting plate, the sewing head comprises a sewing seat and a needle mechanism distributed above the sewing seat, one side of the sewing seat facing the lower die frame is provided with an open slot, the connecting plate is inserted into the open slot, and the connecting plate is detachably connected with the sewing seat through a fastener.

4. The adaptive orbital stitcher of claim 1 or 2, wherein: The first lifting mechanism comprises a first support frame and a third air cylinder mounted on the first support frame, the output rod of the third air cylinder is connected with the upper pressing plate, the upper pressing plate is further connected with a first sliding block, the first sliding block is slidingly matched with a first sliding rail, and the first sliding rail is fixed on the first support frame; the first reciprocating mechanism comprises a fourth air cylinder mounted on the lower pressing plate, the output rod of the fourth air cylinder is connected with the first support frame, the first support frame is further connected with a second sliding block, the second sliding block is slidingly matched with a second sliding rail, the second sliding rail is vertically opposite to the first sliding rail, and the second sliding rail is fixed on the lower pressing plate; the lower pressing plate is connected with the second reciprocating mechanism.

5. The adaptive orbital stitcher of claim 4, wherein: The second reciprocating mechanism comprises a linkage block connected with the lower pressing plate, a first transmission belt connected with the linkage block, a plurality of groups of first pulleys connected with the first transmission belt, a group of the first pulleys connected with a rotating shaft, both ends of the rotating shaft being rotatably installed on the frame, the rotating shaft further connected with a second pulley, the second pulley connected with a second transmission belt, the end of the second transmission belt away from the second pulley connected with a third pulley, the third pulley connected with a first motor; the lower pressing plate further connected with a third sliding block, the third sliding block slidingly fitted with a third sliding rail, the third sliding rail being installed on the frame.

6. The adaptive orbital stitcher of claim 1 or 2, wherein: The third reciprocating mechanism comprises a nut sleeve connected with the sewing machine head, a screw rod threadedly connected with the nut sleeve, a second motor connected with the end of the screw rod, both ends of the screw rod being rotatably installed on the frame, the sewing machine head further connected with a fourth sliding block, the fourth sliding block slidingly fitted with a fourth sliding rail, the fourth sliding rail being installed on the frame.

7. The adaptive orbital stitcher of claim 1 or 2, wherein: The second lifting mechanism comprises a seventh cylinder connected with the sewing table, two groups of guide rods symmetrically distributed on both sides of the seventh cylinder, the body of the seventh cylinder being installed on the frame, a linear bearing sleeved on the outer periphery of the guide rod being installed on the frame, the upper end of the guide rod being connected with the sewing table.

8. The adaptive track sewing machine of claim 1, wherein: The first sliding groove structure is provided with a group of first strip-shaped holes corresponding to each group of first clamping plate pieces, a plurality of groups of the first strip-shaped holes being sequentially arranged on the end face of the upper top plate facing the upper pressing plate, the first clamping plate piece comprising a first lower pressing piece gap-fitted with the first strip-shaped hole, the end of the first lower pressing piece being provided with a first pressing material portion extending out of the first strip-shaped hole and being bent and formed towards the lower die frame; the first clamping plate piece further comprising a first upper pressing piece fixedly connected with the first lower pressing piece, a plurality of groups of upper teeth being uniformly distributed on the first upper pressing piece, the first sliding groove structure further comprising a first containing groove for containing a plurality of groups of the first upper pressing pieces, the first containing groove being distributed on the end face of the upper pressing plate facing the upper top plate; The second sliding groove structure is provided with a group of second strip-shaped holes corresponding to each group of second clamping plate pieces, a plurality of groups of the second strip-shaped holes being sequentially arranged on the end face of the lower top plate facing the lower pressing plate, the second clamping plate piece comprising a second lower pressing piece gap-fitted with the second strip-shaped hole, the end of the second lower pressing piece being provided with a second pressing material portion extending out of the second strip-shaped hole and being bent and formed towards the upper die frame; the second clamping plate piece further comprising a second upper pressing piece fixedly connected with the second lower pressing piece, a plurality of groups of lower teeth being uniformly distributed on the second upper pressing piece, the second sliding groove structure further comprising a second containing groove for containing a plurality of groups of the second upper pressing pieces, the second containing groove being distributed on the end face of the lower pressing plate facing the lower top plate.

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