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CN-121992585-A - Automatic alignment, leveling and sewing equipment and method for bottom edge of underpants

CN121992585ACN 121992585 ACN121992585 ACN 121992585ACN-121992585-A

Abstract

The invention relates to a device and a method for automatically aligning, leveling and sewing a bottom baffle arc edge of underpants. The trimming mechanism is arranged on two sides of the workbench in pairs and is provided with trimming pieces which face the table surface and can be close to or far from the table surface to form a pressing structure, the pressing claw component is provided with pressing claws with pressure surfaces and can press beside the trimming pieces to bear the pressure on the table surface, the workbench is driven by the transfer driving piece to be close to or far from the sewing mechanism and synchronously move to form a material shaping and retaining structure when moving, the material shaping and retaining structure can prevent material transfer from running, stripping and arc rebound, the arc can be accurately stretched smoothly to replace manual lifting by matching with the multidirectional driving and visual recognition system, the trimming difficulty is reduced by the lower supporting platform, the notch of the workbench is matched with the boss of the sewing mechanism, the split layout realizes stable transfer, and the sewing precision and the yield are improved.

Inventors

  • WANG WEIFANG
  • LIU JIANHONG
  • WANG HAIJIAN
  • CANG JING
  • YANG SHUQUN

Assignees

  • 北京华美丽服饰有限公司

Dates

Publication Date
20260508
Application Date
20260213

Claims (10)

  1. 1. The utility model provides an automatic alignment of pants bottom shelves arc limit, flattening and make-up equipment, wherein it includes frame (1) and installs workstation (2) on frame (1), arrangement mechanism (3), press claw subassembly (4) and sewing mechanism (6), arrangement mechanism (3) set up in pairs in workstation (2) both sides, and be equipped with the trimming piece (31) that set up towards workstation (2) mesa, trimming piece (31) can be close to or keep away from workstation (2) mesa and form the pressure structure to the mesa, be equipped with on press claw subassembly (41) on the press claw subassembly (4), press claw (41) have the pressure face towards workstation (2) mesa on, and can press on workstation (2) mesa in the position adjacent to trimming piece (31) to form the pressure structure of trimming piece (31) to material pressure, workstation (2) are installed at the drive end that shifts driving piece (21) through support frame (22), can be close to or keep down driving piece (21) and form the pressure structure to the mesa, fall in the workstation (8) that is equipped with between the driving piece (21) and is formed in the support frame (2) and is fallen to the drive piece (8), fall in the space (8) that can be formed in the workstation (8), the workbench (2) and the lower supporting table (8) can be driven to move close to or away from the sewing mechanism (6), and when the workbench (2) is close to the sewing mechanism (6), the pressing claw assembly (4) and the workbench synchronously displace to form a shaping and retaining structure for materials of the workbench (2).
  2. 2. The automatic alignment, leveling and sewing equipment for the bottom arc edge of underpants according to claim 1, wherein the pressing claw assemblies (4) are symmetrically arranged on two sides of the workbench (2) in pairs and correspond to the arrangement mechanism (3), the pressing claw assemblies (4) further comprise pressing claw lifting driving pieces (42) and pushing claw driving pieces (43), the pressing claws (41) are of strip-shaped tabletting structures, one ends of the pressing claw structures are connected with the pressing claw lifting driving pieces (42) to form fixed ends, the other ends of the pressing claw structures extend towards the center line of the workbench (2), a clamping gap is formed between the pressure surface and the table surface of the workbench (2), the pressing claw lifting driving pieces (42) are arranged on the driving ends of the pushing claw driving pieces (43), and a clamping position adjusting mechanism capable of driving the pressing claw lifting driving pieces (42) to reciprocate in the direction from the side edge to the center line of the workbench (2) is formed.
  3. 3. The automatic alignment, leveling and sewing equipment for the bottom arc edge of underpants according to claim 1, wherein the transfer driving piece (21) is arranged at the bottom of the workbench (2) and can drive the workbench (2) to be close to or far away from the sewing mechanism (6) to form a linear driving path, two sides of the transfer driving piece (21) are respectively provided with a pressing claw displacement assembly (7), the pressing claw displacement assembly (7) comprises a carrying platform (71) and a displacement driving piece (72), the pressing claw assembly (4) is arranged on the carrying platform (71), the carrying platform is arranged at the driving end of the displacement driving piece (72), and the driving direction of the displacement driving piece (72) is the same as and parallel to the driving direction of the transfer driving piece (21) and drives the pressing claw assembly (4) to reciprocate between the initial position of the workbench (2) and the sewing mechanism (6).
  4. 4. The automatic alignment, leveling and sewing equipment for the bottom arc edge of underpants according to claim 1, wherein the lower supporting platform (8) comprises a tremble supporting plate (81) and a lifting drive (82), the lifting drive (82) is arranged at the driving end of the transfer drive piece (21), the tremble supporting plate (81) is a thin plate with elastic deformation corresponding to one side of the workbench (2) far away from a sewing mechanism, the supporting material plane is arranged towards the bottom surface of the workbench (2), the end part of the tremble supporting plate is connected with the driving end of the lifting drive (82), the lifting drive (82) can drive the tremble supporting plate (81) to approach or separate from the bottom surface of the workbench (2) in a falling space, and the other end of the tremble supporting plate (81) can swing in a fluctuation manner in the falling space through inertia to form a jumping plate structure in a driving dead center near the bottom surface of the workbench (2).
  5. 5. The automatic alignment, leveling and sewing equipment for the bottom edge of underpants according to claim 4, wherein the sewing position of the sewing mechanism (6) is an externally convex platform, a concave notch corresponding to the externally convex platform is arranged on the workbench (2) to form a transition edge structure for limiting butt joint, the shape and the size of the tremble supporting plate (81) are the same as those of the workbench (2), the free end is provided with a notch (83) extending towards the fixed end, the tremble supporting plate (81) can enable the bottom of a falling material to bump into the notch (83) through fluctuation and swing, the material forms a triangular opening structure which is supported by two sides of the workbench (2) to gather up the notch (83) at one end of the workbench (2) towards the sewing mechanism, and the end position of the notch (83) is not more than 1/2 of the length of the workbench (2).
  6. 6. The automatic alignment, leveling and sewing equipment for the bottom edge of underpants according to claim 1, further comprising a visual identification system (9), wherein the visual identification system (9) comprises a lifting bracket (91) and a shooting camera (92), the shooting camera (92) is arranged on the frame (1) through the lifting bracket (91) higher than the table top of the workbench (2), and the shooting camera (92) is arranged towards the table top of the workbench.
  7. 7. The automatic alignment, leveling and sewing device for the bottom arc edge of underpants according to claim 1, wherein the arrangement mechanism (3) further comprises a multi-directional driving assembly (32), the multi-directional driving assembly (32) is installed on the frame (1), the number of the multi-directional driving assemblies (32) on the same side of the workbench (2) is 2, and the trimming piece (31) is fixedly installed at the driving end of the multi-directional driving assembly (32).
  8. 8. The automatic alignment, leveling and sewing equipment for the bottom edge of underpants according to claim 1, wherein the number of the pressing claw assemblies (4) arranged on the same carrying platform (71) is 5, the pressing claw assemblies (4) are arranged at equal intervals, the pressing claw assemblies (4) further comprise two-stage driving pieces (44), the pushing claw driving pieces (43) are arranged on the driving ends of the two-stage driving pieces (44), the two-stage driving pieces (44) are arranged on the carrying platform (71), the driving directions are consistent with the displacement directions of the displacement driving pieces (72), and a multi-finger adjusting mechanism capable of mutually gathering or dispersing the pressing claws on the same carrying platform (71) is formed.
  9. 9. The automatic alignment, leveling and sewing device for the bottom edge of underpants according to claim 1, further comprising a control computer, wherein the control computer is respectively connected with the finishing mechanism (3), the pressing claw assembly (4), the sewing mechanism (6), the pressing claw displacement assembly (7), the lower support (8) and the visual recognition system (9) in a signal manner, receives and processes the image signals of the visual recognition system (5), and outputs control signals to the mechanism assemblies to form a signal transmission control mechanism.
  10. 10. A working method of the automatic alignment, leveling and sewing equipment for the bottom edge of underpants according to any one of claims 1 to 9, characterized by comprising the following working steps of Step 1, spreading the crotch of the front piece and the rear piece of underpants to be sewn on a table top correspondingly from the side surface of a workbench, enabling the workbench to pass through leg holes of underpants, enabling the edges of the crotch to be sewn to be opposite, starting equipment, shooting an image of cloth of the crotch by a visual recognition system, uploading the image to a control computer, and outputting control signals to all mechanism components by the control computer; Step 2, controlling a computer to control lifting drive of a lower supporting table to drive a vibration supporting plate to lift cloth falling below a workbench upwards, counteracting gravity resistance of cloth falling, elastically vibrating the vibration supporting plate to shake scattered material folds, simultaneously driving a trimming piece to accurately shift to the corner position of a crotch by a multidirectional driving assembly of a trimming mechanism, pressing the trimming piece to a table surface, pulling the trimming piece to two sides far from the center line of the workbench, and stretching and straightening the concave arc edge of the crotch; Step 3, the pressing claw assembly adjusts the position of the pressing claw through the pushing claw driving piece and the pressing claw lifting driving piece, so that the pressing claw is pressed on the table surface of the workbench at the adjacent position of the trimming piece, the material pressure of the trimming piece is received, the straight crotch edge is pressed, the trimming piece of the trimming mechanism is fixed in a shaping mode, and then the trimming piece of the trimming mechanism loosens the pressing and traction of the cloth; Step 4, the transfer driving piece drives the workbench and the lower supporting table to move to the sewing position of the sewing mechanism, the pressing claw displacement assembly synchronously drives the pressing claw assembly and the workbench to do linear motion in the same direction, and the shaping state of the crotch edge is kept until the concave notch of the workbench is accurately butted with the convex platform of the sewing mechanism; step 5, starting a sewing mechanism, and automatically aligning and sewing the straight edges of the crotch of the shaped underpants front piece and the crotch of the shaped underpants rear piece, wherein the pressing claw assembly is kept in a pressed state in the sewing process; And 6, after the edge of the crotch is sewn, loosening the pressing claw by the pressing claw assembly, taking out the sewn underpants, finishing and sewing the crotch of the underpants, and obtaining the underpants in the crotch sewing state.

Description

Automatic alignment, leveling and sewing equipment and method for bottom edge of underpants Technical Field The invention relates to the field of textile processing equipment, in particular to equipment and a method for automatically aligning, leveling and sewing a bottom baffle edge of underpants. Background The crotch part of the underpants is usually sewn with four needles and six threads to obtain the effect of firm joint and comfortable fit. Because the crotch is formed by butt joint of the concave arc edges of the front piece and the rear piece, the crotch is manually stretched, aligned and sent into a sewing machine for sewing in the traditional production. The four-needle six-thread sewing machine has the advantages of low efficiency, high labor intensity, difficulty in ensuring the consistency of product quality due to the defects of alignment deviation, fold, stitch skew and the like which are easily caused by the difference of the operation methods of operators, and great occupied space and serious restriction on the arrangement and movement stroke of an automation component at the periphery of the four-needle six-thread sewing machine, so that the process is difficult to realize high-efficiency automation for a long time. In order to improve the automation feasibility, the crotch finishing mechanism and the sewing mechanism are often required to be arranged separately, but the process of transferring the materials to the sewing station after leveling is introduced. In the transfer process, the cloth is easy to run, drop or rebound at the arc edge due to lack of effective constraint, so that early leveling is invalid, and the seaming precision can not be ensured. Therefore, there is a need for an automatic underpants crotch sewing technical scheme capable of realizing stable leveling, reliable transfer and accurate sewing under split layout. Disclosure of Invention In order to solve the technical problems, the invention discloses underpants bottom baffle arc edge automatic alignment, leveling and sewing equipment, which comprises a frame, a workbench, a finishing mechanism, a pressing claw assembly and a sewing mechanism, wherein the workbench, the finishing mechanism, the pressing claw assembly and the sewing mechanism are arranged on the frame, the finishing mechanism is arranged on two sides of the workbench in pairs, the finishing mechanism is provided with a finishing piece arranged towards the workbench surface, the finishing piece can approach or keep away from the workbench surface to form a pressing structure for the workbench surface, the pressing claw assembly is provided with a pressing claw, the pressing claw is provided with a pressing surface towards the workbench surface, the pressing claw can be pressed on the workbench surface adjacent to the finishing piece to form a pressing structure for bearing the pressure of the finishing piece to materials, the workbench is arranged at the driving end of a transferring driving piece through a supporting frame, a hanging space for hanging the materials is formed between the bottom surface of the workbench and the mounting surface of the driving piece, the hanging space is provided with a lower supporting table, the lower supporting table can move towards the bottom surface of the workbench surface in the hanging space to form a lifting mechanism, and the transferring driving piece is arranged on the frame, and can drive the lower supporting table and keep the pressing claw to move towards the workbench surface and keep the sewing mechanism to form a synchronous displacement with the workbench when approaching or keeping close to the workbench. Specifically, the press claw assembly is symmetrically arranged on two sides of the workbench in pairs and corresponds to the arrangement mechanism, the press claw assembly further comprises a press claw lifting driving piece and a press claw driving piece, the press claw is of a strip-shaped tabletting structure, one end of the press claw is connected with the press claw lifting driving piece to form a fixed end, the other end of the press claw extends towards the center line of the workbench, a press nip is formed between the pressure surface and the table top, the press claw lifting driving piece is arranged on the driving end of the press claw driving piece, and a press nip position adjusting mechanism capable of driving the press claw lifting driving piece to bring the press claw to reciprocate in the direction from the side to the center line of the workbench is formed. Specifically, the transfer driving piece sets up in the workstation bottom, can drive the workstation and be close to or keep away from sewing mechanism and form sharp drive path, transfer driving piece both sides are provided with respectively and press claw displacement subassembly, press claw displacement subassembly includes carrier platform and displacement driving piece, press claw subassembly installs on carrier platform,