Rear sewing operator

Abstract

The present invention discloses a post-sewing compounder, which includes a main frame body, a workbench assembly, a sewing head and a hemming assembly. The key points are as follows: It further includes an adjusting assembly and a feeding assembly. The adjusting assembly includes a left adjusting seat and a right adjusting seat. The hemming assembly includes a left positioning device, a right positioning device, a left folding knife assembly and a right folding knife assembly. The left positioning device and the left folding knife assembly are both arranged on the left adjusting seat. The right positioning device and the right folding knife assembly are both arranged on the right adjusting seat. The left positioning device and the right positioning device are used to position the width of the gathers of the main body fabric. The left folding knife assembly and the right folding knife assembly are used to hem and gather the large fabric. The distance between the left adjusting seat and the right adjusting seat of the adjusting assembly can be adjusted. The feeding assembly is used to feed the gathered main body fabric and the corresponding compound fabric to the sewing head for sewing together.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing equipment, and specifically to a post-sewing machine for attaching the yoke in the shirt sewing process. Background Art

[0002] In the shirt sewing process, there is a process of attaching the yoke (the yoke is also called the back yoke, and attaching the yoke is also called joining the back yoke). When attaching the yoke, usually the lower yoke is placed with its front side up first, then the middle body is placed with its front side up on the lower yoke, and finally the upper yoke is placed on the front side of the body, with the front side of the upper yoke facing down. Then the three layers of fabric are sewn together. Some high-end shirts also need to make corresponding pleats on the middle body. After making the pleats, the upper yoke is placed and sewn. According to different requirements, the width of the pleats is also different. Therefore, the position of the hemming component needs to be adjusted accordingly. Currently, the existing post-sewing machines for attaching the yoke are usually adjusted manually by workers, with low adjustment accuracy and low efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a post-sewing machine for attaching the yoke in the shirt sewing process, which has a simple structure and a relatively high degree of automation for making pleats.

[0004] The basic technical solution to achieve the purpose of the present invention is: a post-sewing machine, including a main frame body, a workbench component, a sewing head, and a hemming component. The workbench component includes a workbench board. The workbench board is fixedly arranged on the main frame body. The sewing head is fixedly arranged in the upper middle part of the main frame body. Its structural feature is: it also includes an adjustment component and a feeding component. The adjustment component includes two adjustment seats, which are respectively called the left adjustment seat and the right adjustment seat according to their different left and right positions.

[0005] The hemming component includes a left positioning device, a right positioning device, a left folding knife component, and a right folding knife component. The left positioning device and the left folding knife component are both arranged on the left adjustment seat. The right positioning device and the right folding knife component are both arranged on the right adjustment seat. The left positioning device and the right positioning device are used to position the width of the pleats of the body fabric. The left folding knife component and the right folding knife component are used to fold and make pleats on the large fabric. The distance between the left adjustment seat and the right adjustment seat of the adjustment component can be adjusted. The feeding component is used to feed the body fabric with pleats and the corresponding yoke fabric together to the sewing head for sewing.

[0006] The technical solutions based on the above basic technical solution are as follows: The workbench assembly further includes a head table board and a suction component. A set of suction holes penetrating through the upper and lower parts thereof are provided at the right part of the workbench board, and a head hole penetrating through the upper and lower parts thereof and opening backward is provided in the middle of the workbench board. The sewing head is fixedly arranged on the upper middle part of the main frame body, and the corresponding part is located at the head hole of the workbench board. The head table board is detachably and fixedly arranged in the head hole of the workbench board. The upper surface of the head table board is flush with the upper surface of the workbench board. A center scale is arranged along the left-right direction at the rear part of the right part on the upper side of the workbench board, and the center scale is located behind the suction holes. Each suction hole is arranged in a left-right symmetric T-shaped distribution with respect to a plane vertically arranged in the front-rear direction passing through the 0 scale of the center scale. The suction component sucks air downward from the suction holes to generate suction on the upper surface of the workbench board to adsorb and fix the fabric.

[0007] The technical solutions based on the above respective corresponding technical solutions are as follows: The suction component includes a suction hood, a blower, and a suction box. The suction hood is fixedly connected from below to the lower side of the right part of the workbench board to cover the suction holes from below. The air outlet of the suction hood is communicated with the air inlet of the blower through the suction box. The suction box is used to adjust the suction air source of the blower.

[0008] The technical solutions based on the above respective corresponding technical solutions are as follows: An air inlet is provided at the left part of the suction box of the suction component, and a pneumatic angle seat valve is arranged on the air inlet. The other end of the pneumatic angle seat valve is communicated with the air outlet of the suction hood through a corresponding pipeline. An air outlet is provided at the upper part of the suction box, and the air outlet is communicated with the air inlet of the blower through a corresponding pipeline.

[0009] An air inlet hole is provided at the front part of the suction box, and an adjusting plug is arranged at the air inlet hole. The adjusting plug is driven by an adjusting plug cylinder to move forward and backward, so as to open or block the air inlet hole at the front part of the suction box. The adjusting plug cylinder is fixedly arranged on the main frame body by its cylinder body, its piston rod extends backward, and the adjusting plug is fixedly arranged at the end of the piston rod of the adjusting plug cylinder.

[0010] The technical solutions based on the above respective corresponding technical solutions are as follows: The adjusting component further includes an adjusting driving device and an adjusting guiding device. The left adjusting seat and the right adjusting seat are driven by the adjusting driving device to move synchronously towards each other or synchronously in the reverse direction along the adjusting guiding device.

[0011] The technical solutions based on the above respective corresponding technical solutions are as follows: The adjusting component further includes a locking device. The locking device is used to lock and fix the left adjusting seat and the right adjusting seat in the adjusted position.

[0012] The technical solutions based on the above respective corresponding technical solutions are as follows: A left through hole penetrating through the front and rear parts thereof is provided on the left adjusting seat of the adjusting component. A right through hole penetrating through the front and rear parts thereof is provided on the right adjusting seat.

[0013] The locking device comprises a locking seat, a left locking block, a left knurled screw, a right locking block and a right knurled screw.

[0014] The locking seat is fixedly arranged on the right rear part of the workbench along the left and right directions. The locking seat is provided with two oval circular adjustment holes, which are arranged symmetrically and respectively arranged along the left and right directions and run through the front and back of the locking seat.

[0015] The screw rod of the left knurled screw passes through the left through hole of the left adjustment seat and the adjustment hole on the left side of the locking seat from back to front in sequence and then is screwed onto the left locking block, so that when the position of the left adjustment seat is adjusted, the left adjustment seat is clamped and fixed on the locking seat.

[0016] The screw rod of the right knurled screw passes through the right through hole of the right adjusting seat and the adjusting hole on the right side of the locking seat from back to front in sequence and then is screwed onto the right locking block, so that when the position of the right adjusting seat is adjusted, the right adjusting seat is clamped and fixed on the locking seat.

[0017] The technical solution based on the above-mentioned corresponding technical solutions is: the adjustment drive device includes an adjustment drive motor, an adjustment drive gear and an adjustment drive rack. The adjustment drive motor is fixedly arranged on the right part of the main frame through a corresponding mounting seat, and the motor shaft extends upward. The adjustment drive gear transmission is arranged on the motor shaft of the adjustment drive motor.

[0018] There are two adjustment drive racks, which are respectively called the left adjustment drive rack and the right adjustment drive rack according to their left and right positions. The left adjustment drive rack and the right adjustment drive rack are arranged parallel to each other on the front and rear sides of the adjustment drive gear, and both are meshed with the adjustment drive gear. The left adjustment drive rack is fixedly connected to the left adjustment seat by its left end, and the left adjustment drive rack is arranged in the left-right direction, and its teeth face backwards and mesh with the adjustment drive gear. The right adjustment drive rack is fixedly connected to the right adjustment seat by its right end, and the right adjustment drive rack is arranged in the left-right direction, and its teeth face forwards and mesh with the adjustment drive gear.

[0019] The adjustment guide device adopts a plate guide rail, on which two inner slide blocks are arranged. The plate guide rail is fixedly arranged along the movement direction of the adjustment drive rack by its outer guide rail, with its notch facing downward. One inner slide block is fixedly arranged on the left adjustment seat, and the other inner slide block is fixedly arranged on the right adjustment seat.

[0020] The technical solution based on the above-mentioned corresponding technical solutions is that the adjustment component also includes two rack limit rollers, which are respectively used to keep the left adjustment drive rack and the adjustment drive gear in good meshing and keep the right adjustment drive rack and the adjustment drive gear in good meshing.

[0021] The technical solution based on the above respective technical solutions is: The hemming assembly further includes a left fixing device and a right fixing device. The left fixing device includes a left fixing pressing plate and a left pressing plate driving cylinder. The left pressing plate driving cylinder is fixedly arranged on the left adjusting seat by its cylinder block, and its position in the left-right direction can be adjusted. The piston rod of the left pressing plate driving cylinder extends downward. The left fixing pressing plate is horizontally fixedly connected to the piston rod of the left pressing plate driving cylinder in the left-right direction. The right fixing device includes a right fixing pressing plate and a right pressing plate driving cylinder. The right pressing plate driving cylinder is fixedly arranged on the right adjusting seat by its cylinder block, and its position in the left-right direction can be adjusted. The piston rod of the right pressing plate driving cylinder extends downward. The right fixing pressing plate is horizontally fixedly connected to the piston rod of the right pressing plate driving cylinder in the left-right direction.

[0022] The technical solution based on the above respective technical solutions is: The left positioning device includes a left positioning presser foot seat, a left presser foot driving cylinder, a left presser foot linear guide rail, and a left positioning plate. The slider of the left presser foot linear guide rail is fixedly arranged on the lower side of the left adjusting seat, and the guide rail is arranged in the front-back direction. The left positioning presser foot seat is fixedly arranged on the rear end of the guide rail of the left presser foot linear guide rail. The left positioning plate is horizontally fixedly arranged on the left positioning presser foot seat in the front-back direction and is located above the workbench plate. The left presser foot driving cylinder is fixedly arranged on the lower side of the left adjusting seat by its cylinder block, and its piston rod extends backward and is fixedly connected to the left positioning presser foot seat.

[0023] The right positioning device includes a right positioning presser foot seat, a right presser foot driving cylinder, a right presser foot linear guide rail, and a right positioning plate. The slider of the right presser foot linear guide rail is fixedly arranged on the lower side of the right adjusting seat, and the guide rail is arranged in the front-back direction. The right positioning presser foot seat is fixedly arranged on the rear end of the guide rail of the right presser foot linear guide rail. The right positioning plate is horizontally fixedly arranged on the right positioning presser foot seat in the front-back direction and is located above the workbench plate. The right presser foot driving cylinder is fixedly arranged on the lower side of the right adjusting seat by its cylinder block, and its piston rod extends backward and is fixedly connected to the right positioning presser foot seat.

[0024] The left folding knife assembly includes a left folding knife seat, a first left folding knife driving cylinder, a first left folding knife linear guide rail, a left folding knife, a left folding knife mounting seat, a second left folding knife driving cylinder, and a second left folding knife linear guide rail.

[0025] The slider of the first left folding knife linear guide rail is fixedly arranged on the lower side of the left adjusting seat, and the guide rail is arranged in the front-back direction and is located on the left side of the left presser foot linear guide rail. The left folding knife seat is fixedly arranged on the rear end of the guide rail of the first left folding knife linear guide rail.

[0026] The first driving cylinder of the left folding knife is fixedly arranged on the lower side of the left adjusting seat by its cylinder block, and its piston rod extends backward and is fixedly connected to the left folding knife seat. The first driving cylinder of the left folding knife is located on the left side of the left presser foot driving cylinder.

[0027] The second driving cylinder of the left folding knife is fixedly arranged on the left folding knife seat along the left-right direction by its cylinder block, and its piston rod extends to the right. The slider of the second linear guide of the left folding knife is fixedly arranged on the cylinder block of the second driving cylinder of the left folding knife, and its guide rail is arranged along the left-right direction. The left folding knife mounting seat is fixedly arranged on the right end of the guide rail of the second linear guide of the left folding knife. The end of the piston rod of the second driving cylinder of the left folding knife is fixedly connected to the left folding knife mounting seat, so that the left folding knife mounting seat is driven to move left and right by the second driving cylinder of the left folding knife. The left folding knife is fixedly arranged on the front part of the left folding knife mounting seat along the front-back direction, between the upper side of the workbench plate and the lower side of the left positioning plate.

[0028] The right folding knife assembly includes a right folding knife seat, a first driving cylinder of the right folding knife, a first linear guide of the right folding knife, a right folding knife, a right folding knife mounting seat, a second driving cylinder of the right folding knife, and a second linear guide of the right folding knife.

[0029] The slider of the first linear guide of the right folding knife is fixedly arranged on the lower side of the right adjusting seat, and the guide rail is arranged along the front-back direction and is located on the right side of the linear guide of the right presser foot. The right folding knife seat is fixedly arranged on the rear end of the guide rail of the first linear guide of the right folding knife.

[0030] The first driving cylinder of the right folding knife is fixedly arranged on the lower side of the right adjusting seat by its cylinder block, and its piston rod extends backward and is fixedly connected to the right folding knife seat. The first driving cylinder of the right folding knife is located on the right side of the right presser foot driving cylinder.

[0031] The second driving cylinder of the right folding knife is fixedly arranged on the right folding knife seat along the left-right direction by its cylinder block, and its piston rod extends to the right. The slider of the second linear guide of the right folding knife is fixedly arranged on the cylinder block of the second driving cylinder of the right folding knife, and its guide rail is arranged along the left-right direction. The right folding knife mounting seat is fixedly arranged on the right end of the guide rail of the second linear guide of the right folding knife. The end of the piston rod of the second driving cylinder of the right folding knife is fixedly connected to the right folding knife mounting seat, so that the right folding knife mounting seat is driven to move left and right by the second driving cylinder of the right folding knife. The right folding knife is fixedly arranged on the front part of the right folding knife mounting seat along the front-back direction, between the upper side of the workbench plate and the lower side of the right positioning plate.

[0032] The technical solution based on the above respective technical solutions is: The hemming assembly further includes an upper pressing device. The upper pressing device includes an upper pressing plate, an upper pressing plate lifting cylinder, an upper pressing plate connecting seat, an upper pressing plate telescopic cylinder, and an upper pressing plate linear guide.

[0033] The upper platen linear guide is fixedly set on the upper right part of the main frame along the front-to-back direction by its guide, and is located above the workbench. The upper platen telescopic cylinder is fixedly connected by its cylinder body and the slider of the upper platen linear guide, and its piston rod extends backward and is fixedly connected to the corresponding part of the main frame. The upper platen connecting seat is fixedly connected to the slider of the upper platen linear guide. The upper platen lifting cylinder is fixedly set on the upper platen connecting seat by its cylinder body, and its piston rod extends downward. The upper platen is horizontally fixed along the left-right direction on the end of the piston rod of the upper platen lifting cylinder. The upper platen is set in a left-right symmetrical structure with a plane set vertically along the front-to-back direction passing through the 0 scale of the center scale.

[0034] The technical solution based on the above-mentioned corresponding technical solutions is: the feeding assembly includes a feeding driving device, a feeding guiding device, a feeding pressing plate, a pressing plate mounting frame and a pressing plate lifting assembly. The feeding driving device drives the pressing plate mounting frame to move left and right along the feeding guiding device. The feeding pressing plate can be lifted and lowered on the pressing plate mounting frame through the pressing plate lifting assembly.

[0035] The technical solution based on the above corresponding technical solutions is: the feeding guide device comprises a first linear guide rail and a second linear guide rail. Two slide blocks are arranged on the guide rails of the first linear guide rail and the second linear guide rail.

[0036] The feeding drive device comprises a feeding drive motor, a feeding drive gear, a fixed feeding rack, a movable feeding rack and a feeding mounting seat.

[0037] The feeding drive motor is fixedly arranged on the feeding mounting seat, and its motor shaft is arranged along the front-back direction and extends forward out of the feeding mounting seat. The feeding drive gear transmission is arranged on the motor shaft of the feeding drive motor.

[0038] The fixed feeding rack is fixedly arranged on the middle upper part of the main frame body along the left-right direction, and its teeth are located at the lower side, and mesh with the feeding driving gear from top to bottom.

[0039] The first linear guide is fixedly mounted on the middle upper part of the main frame along the left-right direction by its guide rail, and is located above the fixed feed rack. The two sliders of the first linear guide are fixedly mounted on the front upper part of the feed mounting seat in sequence along the left-right direction. The two sliders of the second linear guide are fixedly mounted on the front lower part of the feed mounting seat in sequence along the left-right direction. The second linear guide is fixedly mounted on the upper part of the pressure plate mounting frame along the left-right direction by its guide rail. The mobile feed rack is fixedly mounted on the upper part of the pressure plate mounting frame in the left-right direction, and its teeth are located on the upper side, and mesh with the feed drive gear from the bottom to the top. The mobile feed rack is located above the second linear guide.

[0040] The technical solutions based on the above respective technical solutions are as follows: There are two sets of pressing plate lifting components, which are respectively called the left pressing plate lifting component and the right pressing plate lifting component according to their different left and right positions. The left pressing plate lifting component and the right pressing plate lifting component are respectively arranged on the left part and the right part of the pressing plate mounting frame. The structures of the two sets of pressing plate lifting components are the same, and each includes a pressing plate connecting seat, a pressing plate lifting cylinder, a pressing plate lifting linear guide rail and a pressing plate lifting seat. The pressing plate connecting seat is fixedly arranged on the pressing plate mounting frame by its upper part. The pressing plate lifting cylinder is fixedly connected to the pressing plate connecting seat by its piston rod in the up and down direction. The pressing plate lifting linear guide rail is fixedly arranged on the pressing plate connecting seat by its guide rail in the up and down direction. The pressing plate lifting seat is fixedly connected to the cylinder body of the pressing plate lifting cylinder and the slider of the pressing plate lifting linear guide rail. The left and right ends of the feeding pressing plate are respectively fixedly arranged on the pressing plate connecting seats of the left pressing plate lifting component and the right pressing plate lifting component, so that the feeding pressing plate is driven by the pressing plate lifting cylinders of the left pressing plate lifting component and the right pressing plate lifting component to move up and down along the pressing plate lifting linear guide rail.

[0041] The technical solutions based on the above respective technical solutions are as follows: An air inlet is provided at the left part of the air suction box of the air suction component, and a pneumatic angle seat valve is provided at the air inlet. The other end of the pneumatic angle seat valve is connected to the air outlet of the air suction hood through a corresponding pipeline. An air outlet is provided at the upper part of the air suction box, and the air outlet is connected to the air inlet of the fan through a corresponding pipeline.

[0042] An air inlet hole is provided at the front part of the air suction box, and an adjusting plug is provided at the air inlet hole. The adjusting plug is driven by an adjusting plug cylinder to move back and forth, so as to open or block the air inlet hole at the front part of the air suction box.

[0043] The technical solutions based on the above respective technical solutions are as follows: It further includes a large body feeding component; the large body feeding component includes a large body feeding frame and a large body feeding table board. The lower part of the large body feeding frame is hingedly connected to the lower right part of the main frame body through a damping rotating shaft. The large body feeding table board is fixedly arranged on the upper part of the large body feeding frame, in front of the right part of the work table board, and the angle between the large body feeding table board and the horizontal plane can be adjusted.

[0044] The technical solution based on the above respective technical solutions is: It further includes a material receiving assembly; the material receiving assembly includes a material receiving driving cylinder, a material receiving clamping plate, a material receiving frame, a material receiving platform, and a blowing air pipe. The material receiving clamping plate is rotatably connected to the lower left part of the main frame body at its lower end. The material receiving driving cylinder has its cylinder body hinged to the main frame body, is arranged along the front-back direction, its piston rod extends forward, and is hinged to the middle part of the material receiving clamping plate. The lower part of the material receiving frame is hinged to the lower left part of the main frame body through a damping rotating shaft, and is located in front of the material receiving clamping plate. The material receiving platform is fixedly arranged at the upper end of the material receiving frame. The included angle between the material receiving platform and the horizontal plane can be adjusted. The blowing air pipe is horizontally and fixedly arranged on the main frame body along the left-right direction, and is located behind the upper part of the material receiving clamping plate. A row of air blowing holes penetrating through its inside and outside is provided along the axial direction of the blowing air pipe, and each air blowing hole is arranged along the radial direction of the blowing air pipe.

[0045] The present invention has the following beneficial effects: (1) The post-sewing restitcher of the present invention has a simple structure. The distance between the left positioning device and the right positioning device of the hemming assembly is adjusted by the adjusting assembly, which is convenient to adjust and has high precision, is beneficial to improving the sewing quality of clothing, and improving the grade of clothing.

[0046] (2) The workbench assembly of the post-sewing restitcher of the present invention is provided with a suction air assembly. By sucking air through the suction air assembly, suction is generated at the suction air holes on the workbench plate, and the fabric can be fixed by suction on the workbench plate, ensuring accurate positioning and being beneficial to improving the sewing quality of clothing. The suction air assembly is provided with a suction air box, and the air path is switched through the suction air box to change the suction air source inlet of the fan. When it is not necessary to suck and fix the fabric, it is switched to directly suck ambient air at the suction air box, so that the fan does not need to be frequently turned on and off, which is beneficial to protecting the fan and prolonging the service life of the fan.

[0047] (3) The left end of the machine head table plate of the workbench assembly of the post-sewing restitcher of the present invention is placed on the support block on the left side of the machine head hole, and the right end is placed on the magnet support block on the right side and is adsorbed and fixed, which is convenient for installation and disassembly. After disassembly, the sewing machine head can be maintained and the bobbin can be replaced through the machine head hole.

[0048] (4) The adjusting assembly of the post-sewing restitcher of the present invention is convenient to adjust. By a single adjusting driving gear, two adjusting driving racks are simultaneously driven to move towards each other or move in the opposite direction synchronously, with fast adjusting speed and high precision; through the rack limiting rollers, the adjusting driving racks and the adjusting driving gear are kept in good meshing and at a proper distance, and the adjustment is more stable and reliable.

[0049] (5) The adjusting assembly of the post-sewing restitcher of the present invention is provided with a locking device. Through the locking device, the left adjusting seat and the right adjusting seat can be locked and fixed on the locking seat, greatly improving the use reliability, ensuring the consistency of the same batch of clothing, and being beneficial to improving the quality of clothing.

[0050] (6) In the traditional feeding drive method, the feeding drive motor is fixed, and feeding is performed by driving a moving feeding rack. Therefore, its length in the left-right direction is relatively long, resulting in a large space occupied by the equipment. The feeding drive device of the feeding assembly of the post-sewing mending machine of the present invention is provided with a fixed feeding rack and a moving feeding rack (dividing one rack into two). When the feeding drive motor operates, on the one hand, it drives the moving feeding rack to move, and at the same time, the feeding drive motor also moves. While the operating speed is increased, the length in its left-right direction is reduced, and the space occupied by the equipment is reduced.

[0051] (7) The post-sewing mending machine of the present invention is provided with a large body feeding assembly and a mending plate. The large body fabric to be processed and sewn is placed on the large body feeding assembly, and the mending fabric is placed on the mending plate, which is convenient for workers to take materials and is conducive to improving production efficiency.

[0052] (8) The hemming assembly of the post-sewing mending machine of the present invention is provided with a left fixing device, a right fixing device and an upper pressing device, which can reliably and firmly fix the three-layer fabric on the workbench plate, facilitate the backward reset of the left positioning plate, the right positioning plate, the left folding knife and the right folding knife, ensure accurate fabric positioning, and greatly improve the sewing quality and the finished product rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 is a schematic structural diagram of the post-sewing mending machine of the present invention.

[0054] Figure 2 is Figure 1 the left view schematic diagram of

[0055] Figure 3 is Figure 1 the right view schematic diagram of

[0056] Figure 4 is Figure 1 the top view schematic diagram of

[0057] Figure 5 is from Figure 1 the schematic diagram when observing from the upper right front of

[0058] Figure 6 is from Figure 1 the schematic diagram when observing from the lower right rear of

[0059] Figure 7 is from Figure 1 the schematic diagram when observing from the upper left rear of

[0060] Figure 8 is from Figure 1 the structural schematic diagram after removing the main frame body and the feeding assembly when observing from the upper right front of

[0061] Figure 9The structural schematic diagram after removing the main frame body and the feeding component when observing from the lower right rear of Figure 1

[0062] Figure 10 The schematic diagram of the workbench board when observing from the upper right front of Figure 1

[0063] Figure 11 The schematic diagram of the air suction hood when observing from the upper right front of Figure 1

[0064] Figure 12 The schematic diagram of the air suction hood when observing from the lower right rear of Figure 1

[0065] Figure 13 The structural schematic diagram of the hemming component when observing from the upper right front of Figure 1

[0066] Figure 14 The structural schematic diagram of the hemming component when observing from the lower right rear of Figure 1

[0067] Figure 15 The structural schematic diagram of the hemming component when observing from the lower left rear of Figure 1

[0068] Figure 16 The structural schematic diagram of the left fixing device, left positioning device and left folding knife component of the hemming component when observing from the upper left front of Figure 1

[0069] Figure 17 The structural schematic diagram of the left fixing device, left positioning device and left folding knife component of the hemming component when observing from the upper right front of Figure 1

[0070] Figure 18 The structural schematic diagram of the right fixing device, right positioning device and right folding knife component of the hemming component when observing from the upper left front of Figure 1

[0071] Figure 19 The structural schematic diagram of the right fixing device, right positioning device and right folding knife component of the hemming component when observing from the upper right rear of Figure 1

[0072] Figure 20 The structural schematic diagram of the feeding component when observing from the upper right rear of Figure 1

[0073] Figure 21 The structural schematic diagram of the feeding component when observing from the lower left rear of Figure 1 ​​​​​​​​​​​​​

[0074] Figure 22 The structural schematic diagram of the feeding assembly without the feeding drive device when observed from the upper right front of Figure 1 .

[0075] Figure 23 The structural schematic diagram of the feeding assembly without the feeding drive device when observed from the upper left front of Figure 1 , where the platen lifting assembly on the left side has removed the platen lifting seat.

[0076] The reference numerals in the drawings are:

[0077] Main frame body 1,

[0078] Workbench assembly 2, workbench plate 2-1, suction holes 2-11, head holes 2-12, head table plate 2-2, suction assembly 2-3, suction hood 2-31, fan 2-32, suction box 2-33, pneumatic angle seat valve 2-34, adjusting plug 2-35, adjusting plug cylinder 2-36, micrometer 2-4,

[0079] Sewing head 3,

[0080] Hemming assembly 4,

[0081] Left fixing device 4a, left fixing platen 4a-1, left platen driving cylinder 4a-2,

[0082] Right fixing device 4b, right fixing platen 4b-1, right platen driving cylinder 4b-2,

[0083] Left positioning device 4c, left positioning presser foot seat 4c-1, left presser foot driving cylinder 4c-2, left presser foot linear guide 4c-3, left positioning plate 4c-4,

[0084] Right positioning device 4d, right positioning presser foot seat 4d-1, right presser foot driving cylinder 4d-2, right presser foot linear guide 4d-3, right positioning plate 4d-4,

[0085] Left folding knife assembly 4e, left folding knife seat 4e-1, left folding knife first driving cylinder 4e-2, left folding knife first linear guide 4e-3, left folding knife 4e-4, left folding knife mounting seat 4e-5, left folding knife second driving cylinder 4e-6, left folding knife second linear guide 4e-7,

[0086] Right folding knife assembly 4f, right folding knife seat 4f-1, right folding knife first driving cylinder 4f-2, right folding knife first linear guide 4f-3, right folding knife 4f-4, right folding knife mounting seat 4f-5, right folding knife second driving cylinder 4f-6, right folding knife second linear guide 4f-7,

[0087] Upper pressing device 4g, upper pressing plate 4g-1, upper pressing plate lifting cylinder 4g-2, upper pressing plate connecting seat 4g-3, upper pressing plate telescopic cylinder 4g-4, upper pressing plate linear guide 4g-5,

[0088] Adjusting assembly 5, adjusting driving device 5-1, adjusting driving motor 5-11, adjusting driving gear 5-12, adjusting driving rack 5-13, left adjusting driving rack 5-13a, right adjusting driving rack 5-13b, rack limiting roller 5-14, front rack limiting roller 5-14a, rear rack limiting roller 5-14b, adjusting guiding device 5-2, adjusting seat 5-3, left adjusting seat 5-3a, left through hole 5-3a1, right adjusting seat 5-3b, right through hole 5-3b1,

[0089] Locking device 5-4, locking seat 5-41, adjusting hole 5-411, left locking block 5-42, left knurled screw 5-43, right locking block 5-44, right knurled screw 5-45,

[0090] Feeding assembly 6, feeding driving device 6-1, feeding driving motor 6-11, feeding driving gear 6-12, fixed feeding rack 6-13, movable feeding rack 6-14, feeding mounting seat 6-15, feeding guiding device 6-2, feeding pressing plate 6-3, pressing plate mounting frame 6-4, pressing plate lifting assembly 6-5, pressing plate connecting seat 6-51, pressing plate lifting cylinder 6-52, pressing plate lifting linear guide 6-53, pressing plate lifting seat 6-54,

[0091] Large body material discharging assembly 7, large body material discharging rack 7-1, large body material discharging table board 7-2,

[0092] Back panel material discharging plate 8,

[0093] Material collecting assembly 9, material collecting driving cylinder 9-1, material collecting clamping plate 9-2, material collecting rack 9-3, material collecting platform 9-4, blowing air pipe 9-5. Specific embodiments

[0094] In order to make the content of the present invention easier to be clearly understood, the present invention will be further described in detail below according to specific embodiments in conjunction with the accompanying drawings. The description of the orientation of the present invention is carried out according to Figure 1 the orientation shown, that is, Figure 1 the up, down, left and right directions shown are the up, down, left and right directions described, Figure 1 the direction facing is the front, and the direction away from Figure 1 is the rear.

[0095] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present invention, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0096] It should be understood that the terms "upper", "lower", "inner", "outer", etc. indicating orientation or positional relationship are based on the positional relationship shown in the drawings, and are only for the convenience of describing the present invention or simplifying the description, rather than indicating a specific orientation that must be possessed.

[0097] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0098] (Embodiment 1)

[0099] See Figures 1 to 23 , the post-sewing fusi machine of the present invention includes a main frame body 1, a workbench assembly 2, a sewing machine head 3, a hemming assembly 4, an adjusting assembly 5, a feeding assembly 6, a large body feeding assembly 7, a fusi feeding plate 8, and a receiving assembly 9.

[0100] See Figures 1 to 12 , the workbench assembly 2 includes a workbench plate 2-1, a machine head table plate 2-2, and a suction assembly 2-3. The workbench plate 2-1 is horizontally arranged on the main frame body 1 in the left-right direction. A set of suction holes 2-11 penetrating through its upper and lower parts are provided in the right part of the workbench plate 2-1. An opening 2-12 penetrating through its upper and lower parts and opening backward is provided in the middle part of the workbench plate 2-1. The sewing machine head 3 is fixedly arranged on the upper middle part of the main frame body 1, and the corresponding part is located at the machine head hole 2-12 of the workbench plate 2-1. The machine head table plate 2-2 is detachably and fixedly arranged in the machine head hole 2-12 of the workbench plate 2-1. A support block is provided below the left side at the machine head hole 2-12 of the workbench plate 2-1, and a magnet support block is provided below the right side. The left end of the machine head table plate 2-2 is placed on the support block on the left side of the machine head hole 2-12, and the right end is placed on the magnet support block on the right side and is adsorbed and fixed. The upper surface of the machine head table plate 2-2 is flush with the upper surface of the workbench plate 2-1. A center scale 2-4 is arranged in the left-right direction at the rear part of the upper right side of the workbench plate 2-1, and the center scale 2-4 is located behind the suction holes 2-11. Each of the suction holes 2-11 is arranged in a left-right symmetric T-shaped distribution with respect to a plane vertically arranged in the front-rear direction passing through the 0 scale of the center scale 2-4.

[0101] See Figures 1 to 12 The air suction assembly 2-3 includes an air suction hood 2-31, a fan 2-32 and an air suction box 2-33. The air suction hood 2-31 is fixedly connected to the lower right side of the workbench plate 2-1 from below, covering the air suction holes 2-11 from below.

[0102] The left part of the air suction box 2-33 is provided with an air inlet, and a pneumatic angle seat valve 2-34 is arranged on the air inlet. The other end of the pneumatic angle seat valve 2-34 is connected to the air outlet of the air suction hood 2-31 through a corresponding pipeline.

[0103] The upper part of the air suction box 2-33 is provided with an air outlet 2-331, and the air outlet 2-331 is connected to the air inlet of the fan 2-32 through a corresponding pipeline.

[0104] The front part of the air suction box 2-33 is provided with an air inlet hole, and an adjusting plug 2-35 is arranged at the air inlet hole. The adjusting plug 2-35 is driven by an adjusting plug cylinder 2-36 to move back and forth, so as to open or block the air inlet hole at the front part of the air suction box 2-33. The adjusting plug cylinder 2-36 is fixedly arranged on the main frame body 1 by its cylinder body, its piston rod extends backward, and the adjusting plug 2-35 is fixedly arranged at the end of the piston rod of the adjusting plug cylinder 2-36. When adsorbing and fixing the fabric, the fan 2-32 sucks air, and the adjusting plug cylinder 2-36 drives the adjusting plug 2-35 to extend backward into the air inlet hole at the front part of the air suction box 2-33 to block the air inlet hole, and the pneumatic angle seat valve 2-34 is opened, so as to generate an adsorption force at the air suction holes 2-11 of the workbench plate 2-1 to adsorb and fix the fabric on the workbench plate 2-1, which is beneficial to improving the sewing accuracy. When stopping adsorbing and fixing the fabric, the pneumatic angle seat valve 2-34 is closed, and the adjusting plug cylinder 2-36 drives the adjusting plug 2-35 to withdraw forward from the air inlet hole at the front part of the air suction box 2-33, so as to open the air inlet hole, and the fan 2-32 sucks air through the air inlet hole at the front part of the air suction box 2-33, so that the fan 2-32 does not need to be frequently turned on and off, protecting the fan 2-32.

[0105] See Figures 1 to 9 and Figures 13 to 15The adjustment assembly 5 includes an adjustment drive device 5-1, an adjustment guide device 5-2, an adjustment seat 5-3 and a locking device 5-4. There are two adjustment seats 5-3, and the two adjustment seats 5-3 are respectively called the left adjustment seat 5-3a and the right adjustment seat 5-3b according to their left and right positions. The left adjustment seat 5-3a is provided with a left through hole 5-3a1 that runs through the front and back of it. The right adjustment seat 5-3b is provided with a right through hole 5-3b1 that runs through the front and back of it. The adjustment drive device 5-1 includes an adjustment drive motor 5-11, an adjustment drive gear 5-12, an adjustment drive rack 5-13 and a rack limiting roller 5-14. The adjustment drive motor 5-11 is fixedly arranged on the right part of the main frame 1 through a corresponding mounting seat, located below the middle part of the suction hood 2-31, and the motor shaft extends upward. The adjustment drive gear 5-12 is transmission-arranged on the motor shaft of the adjustment drive motor 5-11. The motor shaft of the drive motor 5-11 is adjusted to be in the same plane vertically arranged in the front-rear direction as the 0 scale of the center scale 2-4.

[0106] There are two adjustment drive racks 5-13, and the two adjustment drive racks 5-13 are respectively called the left adjustment drive rack 5-13a and the right adjustment drive rack 5-13b according to the difference of the left and right positions. The left adjustment drive rack 5-13a and the right adjustment drive rack 5-13b are arranged parallel to each other on the front and rear sides of the adjustment drive gear 5-12, and both are meshed with the adjustment drive gear 5-12. The left adjustment drive rack 5-13a is fixedly connected to the left adjustment seat 5-3a by its left end, and the left adjustment drive rack 5-13a is arranged along the left and right directions, and its teeth are meshed with the adjustment drive gear 5-12 toward the rear. The right adjustment drive rack 5-13b is fixedly connected to the right adjustment seat 5-3b by its right end, and the right adjustment drive rack 5-13b is arranged along the left and right directions, and its teeth are meshed with the adjustment drive gear 5-12 toward the front. There are two rack limit rollers 5-14, which are respectively called the front rack limit roller 5-14a and the rear rack limit roller 5-14b according to their front and rear positions. The front rack limit roller 5-14a is rotatably arranged on the lower side of the suction hood 2-31, and its rotation axis is parallel to the motor axis of the adjustment drive motor 5-11. The front rack limit roller 5-14a is in rolling contact with the front side of the left adjustment drive rack 5-13a, and limits the left adjustment drive rack 5-13a from front to back, so that the left adjustment drive rack 5-13a maintains good meshing with the adjustment drive gear 5-12, and the left adjustment drive rack 5-13a is more stable when moving left and right.

[0107] The rear rack limiting roller 5-14b is rotatably arranged on the lower side of the air suction hood 2-31, and its rotation axis is parallel to the motor axis of the adjustment drive motor 5-11. The rear rack limiting roller 5-14b is in rolling contact with the rear side of the right adjustment drive rack 5-13b, limiting the right adjustment drive rack 5-13b from the rear to the front, so that the right adjustment drive rack 5-13b maintains good meshing with the adjustment drive gear 5-12, and the right adjustment drive rack 5-13b moves more smoothly when moving left and right.

[0108] The adjustment guiding device 5-2 adopts a plate-shaped guide rail, and two inner sliders are arranged on the plate-shaped guide rail. The plate-shaped guide rail is fixedly arranged on the rear part of the lower side of the air suction hood 2-31 along the movement direction of the adjustment drive rack 5-13 by its outer guide rail, and its notch faces downward. One inner slider is fixedly arranged on the left adjustment seat 5-3a, and the other inner slider is fixedly arranged on the right adjustment seat 5-3b.

[0109] The left adjustment drive rack 5-13a and the right adjustment drive rack 5-13b move synchronously towards each other or synchronously in the opposite direction by the adjustment drive motor 5-11 through the adjustment drive gear 5-12. Thus, the distance between the left adjustment seat 5-3a and the right adjustment seat 5-3b is adjusted.

[0110] The locking device 5-4 includes a locking seat 5-41, a left locking block 5-42, a left knurled screw 5-43, a right locking block 5-44 and a right knurled screw 5-45.

[0111] The locking seat 5-41 is fixedly arranged on the rear part of the right side of the workbench plate 2-1 along the left-right direction. Two waist-shaped adjustment holes 5-411 are arranged on the locking seat 5-41. The two waist-shaped adjustment holes 5-411 are symmetrically arranged left and right, and each is arranged along the left-right direction, running through the front and rear of the locking seat 5-41.

[0112] The screw rod of the left knurled screw 5-43 sequentially passes through the left through hole 5-3a1 of the left adjustment seat 5-3a and the adjustment hole 5-411 on the left side of the locking seat 5-41 from the rear to the front and then is screwed on the left locking block 5-42. Thus, after adjusting the position of the left adjustment seat 5-3a, the left adjustment seat 5-3a is clamped and fixed on the locking seat 5-41.

[0113] The screw rod of the right knurled screw 5-45 sequentially passes through the right through hole 5-3b1 of the right adjustment seat 5-3b and the adjustment hole 5-411 on the right side of the locking seat 5-41 from the rear to the front and then is screwed on the right locking block 5-44. Thus, after adjusting the position of the right adjustment seat 5-3b, the right adjustment seat 5-3b is clamped and fixed on the locking seat 5-41.

[0114] See Figures 1 to 9 and Figures 13 to 21, the hemming assembly 4 includes a left fixing device 4a, a right fixing device 4b, a left positioning device 4c, a right positioning device 4d, a left folding knife assembly 4e, a right folding knife assembly 4f and an upper pressing device 4g.

[0115] See Figure 16 and Figure 17 , the left fixing device 4a includes a left fixing pressing plate 4a-1 and a left pressing plate driving cylinder 4a-2. The left pressing plate driving cylinder 4a-2 is fixedly arranged on the left adjusting seat 5-3a by its cylinder block, and its position in the left-right direction can be adjusted. The piston rod of the left pressing plate driving cylinder 4a-2 extends downward. The left pressing plate driving cylinder 4a-2 adopts a guide rod cylinder. The left fixing pressing plate 4a-1 is horizontally fixedly connected to the piston rod of the left pressing plate driving cylinder 4a-2 in the left-right direction.

[0116] See Figure 18 and Figure 19 , the right fixing device 4b includes a right fixing pressing plate 4b-1 and a right pressing plate driving cylinder 4b-2. The right pressing plate driving cylinder 4b-2 is fixedly arranged on the right adjusting seat 5-3b by its cylinder block, and its position in the left-right direction can be adjusted. The piston rod of the right pressing plate driving cylinder 4b-2 extends downward. The right pressing plate driving cylinder 4b-2 adopts a guide rod cylinder. The right fixing pressing plate 4b-1 is horizontally fixedly connected to the piston rod of the right pressing plate driving cylinder 4b-2 in the left-right direction.

[0117] See Figure 16 and Figure 17 , the left positioning device 4c includes a left positioning pressing foot seat 4c-1, a left pressing foot driving cylinder 4c-2, a left pressing foot linear guide 4c-3 and a left positioning plate 4c-4. The slider of the left pressing foot linear guide 4c-3 is fixedly arranged on the lower side of the left adjusting seat 5-3a, and the guide rail is arranged in the front-rear direction. The left positioning pressing foot seat 4c-1 is fixedly arranged on the rear end of the guide rail of the left pressing foot linear guide 4c-3. The left positioning plate 4c-4 is horizontally fixedly arranged on the left positioning pressing foot seat 4c-1 in the front-rear direction, above the workbench plate 2-1. The left pressing foot driving cylinder 4c-2 is fixedly arranged on the lower side of the left adjusting seat 5-3a by its cylinder block, and its piston rod extends backward and is fixedly connected to the left positioning pressing foot seat 4c-1. Thus, the left pressing foot driving cylinder 4c-2 drives the left positioning pressing foot seat 4c-1 to move back and forth along the left pressing foot linear guide 4c-3, so that the left positioning plate 4c-4 extends forward or retracts backward.

[0118] See Figure 18 and Figure 19, the right positioning device 4d includes a right positioning presser foot seat 4d-1, a right presser foot driving cylinder 4d-2, a right presser foot linear guide 4d-3, and a right positioning plate 4d-4. The slider of the right presser foot linear guide 4d-3 is fixedly arranged on the lower side of the right adjusting seat 5-3b, and the guide rail is arranged in the front-back direction. The right positioning presser foot seat 4d-1 is fixedly arranged on the rear end of the guide rail of the right presser foot linear guide 4d-3. The right positioning plate 4d-4 is horizontally fixedly arranged on the right positioning presser foot seat 4d-1 in the front-back direction and is located above the workbench plate 2-1. The right presser foot driving cylinder 4d-2 has its cylinder body fixedly arranged on the lower side of the right adjusting seat 5-3a, and its piston rod extends backward and is fixedly connected to the right positioning presser foot seat 4d-1. Thus, the right positioning presser foot seat 4d-1 is driven by the right presser foot driving cylinder 4d-2 to move back and forth along the right presser foot linear guide 4d-3, so that the right positioning plate 4d-4 extends forward or retracts backward.

[0119] See Figure 16 and Figure 17 , the left folding knife assembly 4e includes a left folding knife seat 4e-1, a first left folding knife driving cylinder 4e-2, a first left folding knife linear guide 4e-3, a left folding knife 4e-4, a left folding knife mounting seat 4e-5, a second left folding knife driving cylinder 4e-6, and a second left folding knife linear guide 4e-7.

[0120] The slider of the first left folding knife linear guide 4e-3 is fixedly arranged on the lower side of the left adjusting seat 5-3a, and the guide rail is arranged in the front-back direction and is located on the left side of the left presser foot linear guide 4c-3. The left folding knife seat 4e-1 is fixedly arranged on the rear end of the guide rail of the first left folding knife linear guide 4e-3.

[0121] The first left folding knife driving cylinder 4e-2 has its cylinder body fixedly arranged on the lower side of the left adjusting seat 5-3a, and its piston rod extends backward and is fixedly connected to the left folding knife seat 4e-1. The first left folding knife driving cylinder 4e-2 is located on the left side of the left presser foot driving cylinder 4c-2.

[0122] The second driving cylinder 4e-6 of the left folding knife is fixedly arranged on the left folding knife seat 4e-1 along the left-right direction by its cylinder block, and its piston rod extends rightward. The slider of the second linear guide rail 4e-7 of the left folding knife is fixedly arranged on the cylinder block of the second driving cylinder 4e-6 of the left folding knife, and its guide rail is arranged along the left-right direction. The left folding knife mounting seat 4e-5 is fixedly arranged on the right end of the guide rail of the second linear guide rail 4e-7 of the left folding knife. The end of the piston rod of the second driving cylinder 4e-6 of the left folding knife is fixedly connected to the left folding knife mounting seat 4e-5, so that the left folding knife mounting seat 4e-5 is driven to move left and right by the second driving cylinder 4e-6 of the left folding knife. The left folding knife 4e-4 is fixedly arranged on the front part of the left folding knife mounting seat 4e-5 along the front-back direction, between the upper part of the workbench plate 2-1 and the lower part of the left positioning plate 4c-4.

[0123] See Figure 18 and Figure 19 , the right folding knife assembly 4f includes a right folding knife seat 4f-1, a first driving cylinder 4f-2 of the right folding knife, a first linear guide rail 4f-3 of the right folding knife, a right folding knife 4f-4, a right folding knife mounting seat 4f-5, a second driving cylinder 4f-6 of the right folding knife, and a second linear guide rail 4f-7 of the right folding knife.

[0124] The slider of the first linear guide rail 4f-3 of the right folding knife is fixedly arranged on the lower side of the right adjusting seat 5-3b, and the guide rail is arranged along the front-back direction, on the right side of the linear guide rail 4c-3 of the right pressing foot. The right folding knife seat 4f-1 is fixedly arranged on the rear end of the guide rail of the first linear guide rail 4f-3 of the right folding knife.

[0125] The first driving cylinder 4f-2 of the right folding knife is fixedly arranged on the lower side of the right adjusting seat 5-3b by its cylinder block, its piston rod extends backward, and is fixedly connected to the right folding knife seat 4f-1. The first driving cylinder 4f-2 of the right folding knife is on the right side of the driving cylinder 4c-2 of the right pressing foot.

[0126] The second driving cylinder 4f-6 of the right folding knife is fixedly arranged on the right folding knife seat 4f-1 along the left-right direction by its cylinder block, and its piston rod extends rightward. The slider of the second linear guide rail 4f-7 of the right folding knife is fixedly arranged on the cylinder block of the second driving cylinder 4f-6 of the right folding knife, and its guide rail is arranged along the left-right direction. The right folding knife mounting seat 4f-5 is fixedly arranged on the right end of the guide rail of the second linear guide rail 4f-7 of the right folding knife. The end of the piston rod of the second driving cylinder 4f-6 of the right folding knife is fixedly connected to the right folding knife mounting seat 4f-5, so that the right folding knife mounting seat 4f-5 is driven to move left and right by the second driving cylinder 4f-6 of the right folding knife. The right folding knife 4f-4 is fixedly arranged on the front part of the right folding knife mounting seat 4f-5 along the front-back direction, between the upper part of the workbench plate 2-1 and the lower part of the right positioning plate 4c-4.

[0127] SeeFigure 20 and Figure 21 The upper side clamping device 4g includes an upper pressure plate 4g-1, an upper pressure plate lifting cylinder 4g-2, an upper pressure plate connecting seat 4g-3, an upper pressure plate telescopic cylinder 4g-4 and an upper pressure plate linear guide 4g-5.

[0128] The upper pressure plate linear guide 4g-5 is fixedly set on the upper right part of the main frame 1 by its guide rail along the front-to-back direction, and is located above the workbench 2-1. The upper pressure plate telescopic cylinder 4g-4 is fixedly connected to the slider of the upper pressure plate linear guide 4g-5 by its cylinder body, and its piston rod extends backward and is fixedly connected to the corresponding part of the main frame 1. The upper pressure plate connecting seat 4g-3 is fixedly connected to the slider of the upper pressure plate linear guide 4g-5. The upper pressure plate lifting cylinder 4g-2 is fixedly set on the upper pressure plate connecting seat 4g-3 by its cylinder body, and its piston rod extends downward. The upper pressure plate 4g-1 is horizontally fixedly set on the end of the piston rod of the upper pressure plate lifting cylinder 4g-2 along the left-right direction. The upper pressure plate 4g-1 is set in a left-right symmetrical structure with a plane set vertically along the front-to-back direction passing through the 0 scale of the center scale 2-4.

[0129] See Figures 1 to 7 and Figures 20 to 23 The feeding assembly 6 includes a feeding drive device 6-1, a feeding guide device 6-2, a feeding pressure plate 6-3, a pressure plate mounting frame 6-4 and a pressure plate lifting assembly 6-5. The feeding guide device 6-2 includes a first linear guide rail 6-21 and a second linear guide rail 6-22. The first linear guide rail 6-21 and the second linear guide rail 6-22 are both HIWIN EGH15CA ball linear guide rails, and two sliders are provided on the guide rails. The feeding pressure plate 6-3 can be lifted and lowered on the pressure plate mounting frame 6-4 through the pressure plate lifting assembly 6-5.

[0130] The feeding drive device 6-1 includes a feeding drive motor 6-11, a feeding drive gear 6-12, a fixed feeding rack 6-13, a movable feeding rack 6-14 and a feeding mounting seat 6-15.

[0131] The feeding drive motor 6-11 is fixedly arranged on the feeding mounting seat 6-15, and its motor shaft is arranged along the front-back direction and extends forward outside the feeding mounting seat 6-15. The feeding drive gear 6-12 is transmission-arranged on the motor shaft of the feeding drive motor 6-11.

[0132] The fixed feed rack 6-13 is fixedly arranged on the middle upper part of the main frame 1 along the left-right direction, and its teeth are located on the lower side, meshing with the feed drive gear 6-12 from top to bottom.

[0133] The first linear guide rail 6-21 is fixedly arranged on the upper middle part of the main frame body 1 along the left-right direction by its guide rail, and is located above the fixed feeding rack 6-13. The two sliders of the first linear guide rail 6-21 are fixedly arranged on the upper front side of the feeding mounting seat 6-15 in sequence along the left-right direction. The two sliders of the second linear guide rail 6-22 are fixedly arranged on the lower front side of the feeding mounting seat 6-15 in sequence along the left-right direction. The second linear guide rail 6-22 is fixedly arranged on the upper part of the pressing plate mounting frame 6-4 by its guide rail along the left-right direction. The movable feeding rack 6-14 is fixedly arranged on the upper part of the pressing plate mounting frame 6-4 along the left-right direction, and its teeth are located on the upper side and mesh with the feeding driving gear 6-12 from bottom to top. The movable feeding rack 6-14 is located above the second linear guide rail 6-22.

[0134] There are two sets of pressing plate lifting assemblies 6-5. The two sets of pressing plate lifting assemblies 6-5 are respectively called the left pressing plate lifting assembly 6-5a and the right pressing plate lifting assembly 6-5b according to their different left-right positions. The left pressing plate lifting assembly 6-5a and the right pressing plate lifting assembly 6-5b are respectively arranged on the left part and the right part of the pressing plate mounting frame 6-4. The structures of the two sets of pressing plate lifting assemblies 6-5 are the same, and each includes a pressing plate connecting seat 6-51, a pressing plate lifting cylinder 6-52, a pressing plate lifting linear guide rail 6-53 and a pressing plate lifting seat 6-54. The pressing plate connecting seat 6-51 is fixedly arranged on the pressing plate mounting frame 6-4 by its upper part. The pressing plate lifting cylinder 6-52 is fixedly connected to the pressing plate connecting seat 6-51 by its piston rod along the up-down direction. The pressing plate lifting linear guide rail 6-53 is fixedly arranged on the pressing plate connecting seat 6-5 along the up-down direction by its guide rail. The pressing plate lifting seat 6-54 is fixedly connected to the cylinder body of the pressing plate lifting cylinder 6-52 and the slider of the pressing plate lifting linear guide rail 6-53. The left and right ends of the feeding pressing plate 6-3 are respectively fixedly arranged on the pressing plate connecting seats 6-5 of the left pressing plate lifting assembly 6-5a and the right pressing plate lifting assembly 6-5b, so that the feeding pressing plate 6-3 is driven by the pressing plate lifting cylinders 6-52 of the left pressing plate lifting assembly 6-5a and the right pressing plate lifting assembly 6-5b to move up and down along the pressing plate lifting linear guide rail 6-53.

[0135] See Figures 1 to 7 , the large body feeding component 7 includes a large body feeding frame 7-1 and a large body feeding table board 7-2. The lower part of the large body feeding frame 7-1 is hinged to the lower right part of the main frame body 1 through a damping rotating shaft. The large body feeding table board 7-2 is fixedly arranged on the upper part of the large body feeding frame 7-1, and is located in front of the right part of the workbench board 2-1. The included angle between the large body feeding table board 7-2 and the horizontal plane can be adjusted.

[0136] See Figures 1 to 7 , the compound release plate 8 is fixedly arranged on the right end of the workbench board 2-1 and extends to the right.

[0137] See Figures 1 to 7, the material receiving assembly 9 includes a material receiving driving cylinder 9-1, a material receiving clamping plate 9-2, a material receiving rack 9-3, a material receiving platform 9-4 and a blowing air pipe 9-5. The material receiving clamping plate 9-2 is rotatably connected to the lower left part of the main frame body 1 at its lower end. The material receiving driving cylinder 9-1 has its cylinder body hinged to the main frame body 1, is arranged in the front-back direction, and its piston rod extends forward and is hinged to the middle part of the material receiving clamping plate 9-2. The lower part of the material receiving rack 9-3 is hinged to the lower left part of the main frame body 1 through a damping rotating shaft and is located in front of the material receiving clamping plate 9-2. The material receiving platform 9-4 is fixedly arranged at the upper end of the material receiving rack 9-3. The included angle between the material receiving platform 9-4 and the horizontal plane can be adjusted. The blowing air pipe 9-5 is horizontally and fixedly arranged on the main frame body 1 in the left-right direction and is located behind the upper part of the material receiving clamping plate 9-2. The blowing air pipe 9-5 is provided with a row of air blowing holes penetrating through its inside and outside along its axial direction, and each air blowing hole is arranged along the radial direction of the blowing air pipe 9-5.

[0138] When the post-sewing rewind machine of the present invention works:

[0139] 1. In the initial state, the piston rod of the left pressing plate driving cylinder 4a-2 of the left fixing device 4a is in the upward retracted state, and the left fixing pressing plate 4a-1 rises upward. The piston rod of the right pressing plate driving cylinder 4b-2 of the right fixing device 4b is in the upward retracted state, and the right fixing pressing plate 4b-1 rises upward.

[0140] The piston rod of the left pressing foot driving cylinder 4c-2 of the left positioning device 4c is in the backward extending state, and the frontmost end of the left positioning plate 4c-4 is located behind the front positioning surface of the center dividing ruler 2-4.

[0141] The piston rod of the right pressing foot driving cylinder 4d-2 of the right positioning device 4d is in the backward extending state, and the frontmost end of the right positioning plate 4d-4 is located behind the front positioning surface of the center dividing ruler 2-4.

[0142] The piston rod of the left folding knife first driving cylinder 4e-2 of the left folding knife assembly 4e is in the backward extending state, and the frontmost end of the left folding knife 4e-4 is located behind the front positioning surface of the center dividing ruler 2-4. The piston rod of the left folding knife second driving cylinder 4e-6 is in the leftward retracted state, and the left folding knife 4e-4 is located to the left of the left positioning plate 4c-4.

[0143] The piston rod of the right folding knife first driving cylinder 4f-2 of the right folding knife assembly 4f is in the backward extending state, and the frontmost end of the right folding knife 4f-4 is located behind the front positioning surface of the center dividing ruler 2-4. The piston rod of the right folding knife second driving cylinder 4f-6 is in the rightward retracted state, and the right folding knife 4f-4 is located to the right of the right positioning plate 4d-4.

[0144] The piston rod of the upper platen lifting cylinder 4g-2 of the upper pressing device 4g is in the upward retracted state, and the piston rod of the upper platen telescopic cylinder 4g-4 is in the retracted state. The front end of the upper platen 4g-1 is located behind the front positioning surface of the micrometer 2-4.

[0145] The feeding platen 6-3 of the feeding assembly 6 is located to the left of the sewing machine head 3, and the platen lifting assembly 6-5 raises the feeding platen 6-3 upward.

[0146] 2. According to the requirement of the pleat width of the body, the distance between the left adjusting seat 5-3a and the right adjusting seat 5-3b is adjusted by the adjusting drive motor 5-11 of the adjusting assembly 5, so as to adjust the distance between the left edge of the left positioning plate 4c-4 and the right edge of the right positioning plate 4d-4, making it correspond to the pleat width. The left positioning plate 4c-4 on the left adjusting seat 5-3a and the right positioning plate 4d-4 on the right adjusting seat 5-3b are symmetrically distributed left and right with respect to the plane vertically arranged in the front-rear direction passing through the 0 scale of the micrometer 2-4. The left folding knife 4e-4 on the left adjusting seat 5-3a and the right folding knife 4f-4 on the right adjusting seat 5-3b are symmetrically distributed left and right with respect to the plane vertically arranged in the front-rear direction passing through the 0 scale of the micrometer 2-4.

[0147] 3. First, place the lower fusible interlining face up on the workbench plate 2-1 of the workbench assembly 2 with the plane vertically arranged in the front-rear direction passing through the 0 scale of the micrometer 2-4 as the symmetry plane, and the rear part is closely attached to the front positioning surface of the micrometer 2-4. The lower fusible interlining is adsorbed and fixed on the workbench plate by each suction hole 2-11.

[0148] 4. Then, the piston rod of the left presser foot driving cylinder 4c-2 of the left positioning device 4c retracts forward, so that the left positioning plate 4c-4 extends forward above the rear part of the lower fusible interlining. The piston rod of the right presser foot driving cylinder 4d-2 of the right positioning device 4d retracts forward, so that the right positioning plate 4d-4 extends forward above the rear part of the lower fusible interlining. The left presser foot driving cylinder 4c-2 and the right presser foot driving cylinder 4d-2 act synchronously. Then place the body fabric on the lower fusible interlining with the plane vertically arranged in the front-rear direction passing through the 0 scale of the micrometer 2-4 as the symmetry plane, and bypass it from above the left positioning plate 4c-4 and the right positioning plate 4d-4, covering the left positioning plate 4c-4 and the right positioning plate 4d-4 from above.

[0149] 5. The piston rod of the left folding knife first driving cylinder 4e-2 of the left folding knife assembly 4e retracts forward, and the left folding knife 4e-4 extends forward above the rear part of the main body fabric. The piston rod of the right folding knife first driving cylinder 4f-2 of the right folding knife assembly 4f retracts forward, and the right folding knife 4f-4 extends forward above the rear part of the main body fabric. The left folding knife first driving cylinder 4e-2 and the right folding knife first driving cylinder 4f-2 act synchronously.

[0150] The piston rod of the left folding knife second driving cylinder 4e-6 extends to the right, and the left folding knife 4e-4 folds the corresponding part of the main body fabric below the left positioning plate 4c-4.

[0151] The piston rod of the right folding knife second driving cylinder 4f-6 extends to the left, and the right folding knife 4f-4 folds the corresponding part of the main body fabric below the right positioning plate 4d-4.

[0152] 6. Then, the upper layer of fusible interlining is placed face down on the main body fabric with the plane vertically set along the front-rear direction passing through the 0 scale of the center divider 2-4 as the symmetry plane.

[0153] Then, the left pressing plate driving cylinder 4a-2 of the left fixing device 4a drives the left pressing plate 4a-1 to press and fix the corresponding part of the three-layer fabric on the workbench plate 2-1 from top to bottom; the right pressing plate driving cylinder 4b-2 of the right fixing device 4b drives the right pressing plate 4b-1 to press and fix the corresponding part of the three-layer fabric on the workbench plate 2-1 from top to bottom.

[0154] The piston rod of the upper pressing plate telescopic cylinder 4g-4 of the upper pressing device 4g extends, and the upper pressing plate 4g-1 extends forward between the left positioning plate 4c-4 and the right positioning plate 4d-4 through the cylinder block. The piston rod of the upper pressing plate lifting cylinder 4g-2 extends downward to press and fix the three-layer fabric on the workbench plate 2-1 from top to bottom with the upper pressing plate 4g-1.

[0155] 7. The piston rod of the left pressing foot driving cylinder 4c-2 of the left positioning device 4c extends backward to reset the left positioning plate 4c-4 backward. The piston rod of the right pressing foot driving cylinder 4d-2 of the right positioning device 4d extends backward to reset the right positioning plate 4d-4 backward. The piston rod of the left folding knife first driving cylinder 4e-2 of the left folding knife assembly 4e extends backward, and the left folding knife 4e-4 resets backward. The piston rod of the right folding knife first driving cylinder 4f-2 of the right folding knife assembly 4f extends backward, and the right folding knife 4f-4 resets backward. The left pressing foot driving cylinder 4c-2, the right pressing foot driving cylinder 4d-2, the left folding knife first driving cylinder 4e-2 and the right folding knife first driving cylinder 4f-2 act synchronously.

[0156] Meanwhile, the feeding drive motor 6-11 of the feeding assembly 6 drives the pressing plate mounting bracket 6-4 with the feeding pressing plate 6-3 to move rightward above the three-layer fabric. After the left positioning plate 4c-4, the right positioning plate 4d-4, the left folding knife 4e-4 and the right folding knife 4f-4 are reset backward, the pressing plate lifting assembly 6-5 drives the feeding pressing plate 6-3 to press the three-layer fabric downward from above onto the workbench 2-1.

[0157] 8. The piston rod of the upper pressing plate lifting cylinder 4g-2 retracts upward, causing the upper pressing plate 4g-1 to rise from the left positioning plate 4c-4 and the right positioning plate 4d-4. The piston rod of the upper pressing plate telescopic cylinder 4g-4 of the upper pressing device 4g retracts, and through the cylinder body, the upper pressing plate 4g-1 is reset backward. Then, the left pressing plate driving cylinder 4a-2 of the left fixing device 4a drives the left fixing pressing plate 4a-1 to rise and reset from below; the right pressing plate driving cylinder 4b-2 of the right fixing device 4b drives the right fixing pressing plate 4b-1 to rise and reset from below. The piston rod of the left folding knife second driving cylinder 4e-6 retracts leftward, and the left folding knife 4e-4 resets leftward.

[0158] The piston rod of the right folding knife second driving cylinder 4f-6 retracts rightward, and the right folding knife 4f-4 resets rightward.

[0159] 9. The pneumatic angle seat valve 2-34 is closed, and the regulating plug cylinder 2-36 drives the regulating plug 2-35 to withdraw forward from the air inlet hole at the front of the air suction box 2-33, thus opening the air inlet hole. The fan 2-32 sucks air through the air inlet hole at the front of the air suction box 2-33; the air suction box 2-33 stops sucking air from each air suction hole 2-11. The feeding drive motor 6-11 of the feeding assembly 6 drives the pressing plate mounting bracket 6-4 to move leftward, and the feeding pressing plate 6-3 drives the three-layer stacked fabric to feed together toward the sewing head 3, and the sewing head 3 sews the three-layer fabric together.

[0160] 10. After sewing is completed, cut the sewing thread. The corresponding part of the sewn three-layer fabric is located between the upper part of the material receiving platform 9-4 and the material receiving clamping plate 9-2 of the material receiving assembly 9. The material receiving driving cylinder 9-1 drives the material receiving clamping plate 9-2 to move forward, and together with the front part of the material receiving platform 9-4, clamps the fabric. Then, the pressing plate lifting assembly 6-5 drives the feeding pressing plate 6-3 to lift upward from below. Then, the blowing air pipe 9-5 blows air forward through each air blowing hole, so that the upper part of the fabric bypasses the material receiving platform 9-4 backward and then lies on the material receiving platform 9-4. The material receiving driving cylinder 9-1 drives the material receiving clamping plate 9-2 to reset backward to complete material receiving. In the above specific embodiments, the purpose, technical solution and beneficial effects of the present invention are further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A post-sewing and compounding machine, comprising a main frame body, a workbench assembly, a sewing head and a hemming assembly; the workbench assembly includes a workbench board; the workbench board is fixedly arranged on the main frame body; the sewing head is fixedly arranged on the upper middle part of the main frame body; It is characterized in that: It further includes an adjusting assembly and a feeding assembly; the adjusting assembly includes two adjusting seats, an adjusting driving device and an adjusting guiding device. The two adjusting seats are respectively called a left adjusting seat and a right adjusting seat according to their different left and right positions; the left adjusting seat and the right adjusting seat are driven by the adjusting driving device to move synchronously towards each other or synchronously in the opposite direction along the adjusting guiding device, so that the distance between the left adjusting seat and the right adjusting seat can be adjusted; The hemming assembly includes a left positioning device, a right positioning device, a left folding knife assembly and a right folding knife assembly; the left positioning device and the left folding knife assembly are both arranged on the left adjusting seat; the right positioning device and the right folding knife assembly are both arranged on the right adjusting seat; The left positioning device and the right positioning device are used to position the width of the pleats of the main body fabric; the left positioning device includes a left presser foot driving cylinder and a left positioning plate; the left presser foot driving cylinder is fixedly arranged on the lower side of the left adjusting seat by its cylinder body, and the left positioning plate is driven by the left presser foot driving cylinder to move back and forth; The right positioning device includes a right presser foot driving cylinder and a right positioning plate; the right presser foot driving cylinder is fixedly arranged on the lower side of the right adjusting seat by its cylinder body, and the right positioning plate is driven by the right presser foot driving cylinder to move back and forth; The left folding knife assembly and the right folding knife assembly are used to fold and pleat the large fabric; the left folding knife assembly includes a left folding knife first driving cylinder, a left folding knife and a left folding knife second driving cylinder; the left folding knife first driving cylinder is fixedly arranged on the lower side of the left adjusting seat by its cylinder body; the left folding knife first driving cylinder drives the left folding knife second driving cylinder to move back and forth, and the left folding knife second driving cylinder drives the left folding knife to move up and down; The right folding knife assembly includes a right folding knife first driving cylinder, a right folding knife and a right folding knife second driving cylinder; the right folding knife first driving cylinder is fixedly arranged on the lower side of the right adjusting seat by its cylinder body; the right folding knife first driving cylinder drives the right folding knife second driving cylinder to move back and forth, and the right folding knife second driving cylinder drives the right folding knife to move up and down; the feeding assembly is used to feed the pleated main body fabric and the corresponding compound fabric to the sewing head for sewing together.

2. The post-sewing and compounding machine according to claim 1, It is characterized in that: The workbench assembly also includes a head table and a suction assembly; a group of suction holes running through the upper and lower parts of the workbench are provided on the right part of the workbench, and a head hole running through the upper and lower parts and opening backwards is provided in the middle part of the workbench; the sewing machine head is fixedly arranged on the upper middle part of the main frame, and the corresponding part is located at the head hole of the workbench; the head table is detachably fixed in the head hole of the workbench; the upper surface of the head table is flush with the upper surface of the workbench; a center ruler is provided on the rear part of the upper right part of the workbench along the left and right directions, and the center ruler is located behind the suction holes; the suction holes are arranged in a left-right symmetrical T-shape distribution on a plane vertically arranged along the front-back direction passing through the 0 scale of the center ruler; the suction assembly draws air downward from the suction hole, and generates suction on the upper surface of the workbench to adsorb and fix the cloth.

3. The post-sewing repair machine according to claim 2, Features: The air suction assembly includes an air suction hood, a fan and an air suction box; the air suction hood is fixedly connected to the lower right side of the workbench from below to cover each air suction hole from below; the air outlet of the air suction hood is connected to the air inlet of the fan through the air suction box; the air suction box is used to adjust the air suction source of the fan.

4. The post-sewing repair machine according to claim 1, Features: Adjustment components also.

5. The post-sewing repair machine according to claim 1, Features: The adjustment assembly also includes a locking device; the locking device is used to lock and fix the left adjustment seat and the right adjustment seat in the adjusted position.

6. The post-sewing repairing machine according to claim 4 or 5, Features: The adjustment drive device includes an adjustment drive motor, an adjustment drive gear and an adjustment drive rack; the adjustment drive motor is fixedly arranged on the right part of the main frame through a corresponding mounting seat, and the motor shaft extends upward; The adjustment drive gear transmission is arranged on the motor shaft of the adjustment drive motor; There are two adjustment drive racks, which are respectively called the left adjustment drive rack and the right adjustment drive rack according to their left and right positions; the left adjustment drive rack and the right adjustment drive rack are arranged parallel to each other on the front and rear sides of the adjustment drive gear, and both are meshed with the adjustment drive gear; the left adjustment drive rack is fixedly connected to the left adjustment seat by its left end, and the left adjustment drive rack is arranged in the left-right direction, and its teeth face backwards and mesh with the adjustment drive gear; the right adjustment drive rack is fixedly connected to the right adjustment seat by its right end, and the right adjustment drive rack is arranged in the left-right direction, and its teeth face forwards and mesh with the adjustment drive gear; The adjustment guide device adopts a plate guide rail, on which two inner slide blocks are arranged; the plate guide rail is fixedly arranged along the movement direction of the adjustment drive rack by its outer guide rail, with its notch facing downward; one inner slide block is fixedly arranged on the left adjustment seat, and the other inner slide block is fixedly arranged on the right adjustment seat.

7. The post-sewing repair machine according to claim 1, Features: The hemming assembly also includes a left-side fixing device and a right-side fixing device; The left fixing device includes a left fixing pressing plate and a left pressing plate driving cylinder; the left pressing plate driving cylinder is fixedly arranged on the left adjusting seat by its cylinder body, and its position in the left-right direction can be adjusted. The piston rod of the left pressing plate driving cylinder extends downward; the left fixing pressing plate is horizontally fixedly connected to the piston rod of the left pressing plate driving cylinder in the left-right direction; The right fixing device includes a right fixing pressing plate and a right pressing plate driving cylinder; the right pressing plate driving cylinder is fixedly arranged on the right adjusting seat by its cylinder body, and its position in the left-right direction can be adjusted. The piston rod of the right pressing plate driving cylinder extends downward; the right fixing pressing plate is horizontally fixedly connected to the piston rod of the right pressing plate driving cylinder in the left-right direction.

8. The post-sewing rewind machine according to claim 1, characterized in that: The left positioning device further includes a left positioning presser foot seat and a left presser foot linear guide; the slider of the left presser foot linear guide is fixedly arranged on the lower side of the left adjusting seat, and the guide rail is arranged in the front-rear direction; the left positioning presser foot seat is fixedly arranged on the rear end of the guide rail of the left presser foot linear guide; the left positioning plate is horizontally fixedly arranged on the left positioning presser foot seat in the front-rear direction, above the workbench plate; the piston rod of the left presser foot driving cylinder extends backward and is fixedly connected to the left positioning presser foot seat; The right positioning device further includes a right positioning presser foot seat and a right presser foot linear guide; the slider of the right presser foot linear guide is fixedly arranged on the lower side of the right adjusting seat, and the guide rail is arranged in the front-rear direction; the right positioning presser foot seat is fixedly arranged on the rear end of the guide rail of the right presser foot linear guide; the right positioning plate is horizontally fixedly arranged on the right positioning presser foot seat in the front-rear direction, above the workbench plate; the piston rod of the right presser foot driving cylinder extends backward and is fixedly connected to the right positioning presser foot seat; The left folding knife assembly further includes a left folding knife seat, a left folding knife first linear guide, a left folding knife mounting seat and a left folding knife second linear guide; The slider of the left folding knife first linear guide is fixedly arranged on the lower side of the left adjusting seat, and the guide rail is arranged in the front-rear direction, on the left side of the left presser foot linear guide; the left folding knife seat is fixedly arranged on the rear end of the guide rail of the left folding knife first linear guide; The piston rod of the left folding knife first driving cylinder extends backward and is fixedly connected to the left folding knife seat; the left folding knife first driving cylinder is located on the left side of the left presser foot driving cylinder; The left folding knife second driving cylinder is fixedly arranged on the left folding knife seat in the left-right direction by its cylinder body, and its piston rod extends to the right; the slider of the left folding knife second linear guide is fixedly arranged on the cylinder body of the left folding knife second driving cylinder, and its guide rail is arranged in the left-right direction; the left folding knife mounting seat is fixedly arranged on the right end of the guide rail of the left folding knife second linear guide; the end of the piston rod of the left folding knife second driving cylinder is fixedly connected to the left folding knife mounting seat, so that the left folding knife mounting seat is driven to move left and right by the left folding knife second driving cylinder; the left folding knife is fixedly arranged on the front part of the left folding knife mounting seat in the front-rear direction, between the upper part of the workbench plate and the lower part of the left positioning plate; The right folding knife assembly further includes a right folding knife seat, a right folding knife first linear guide, a right folding knife mounting seat and a right folding knife second linear guide; The slider of the first linear guide rail of the right folding knife is fixedly arranged on the lower side of the right adjusting seat. The guide rail is arranged in the front-back direction and is located on the right side of the linear guide rail of the right presser foot. The right folding knife seat is fixedly arranged on the rear end of the guide rail of the first linear guide rail of the right folding knife. The piston rod of the first driving cylinder of the right folding knife extends backward and is fixedly connected to the right folding knife seat. The first driving cylinder of the right folding knife is located on the right side of the driving cylinder of the right presser foot. The second driving cylinder of the right folding knife is fixedly arranged on the right folding knife seat by its cylinder body in the left-right direction, and its piston rod extends to the right. The slider of the second linear guide rail of the right folding knife is fixedly arranged on the cylinder body of the second driving cylinder of the right folding knife, and its guide rail is arranged in the left-right direction. The right folding knife mounting seat is fixedly arranged on the right end of the guide rail of the second linear guide rail of the right folding knife. The end of the piston rod of the second driving cylinder of the right folding knife is fixedly connected to the right folding knife mounting seat, so that the right folding knife mounting seat is driven to move left and right by the second driving cylinder of the right folding knife. The right folding knife is fixedly arranged on the front part of the right folding knife mounting seat in the front-back direction, and is located between the upper part of the workbench plate and the lower part of the right positioning plate.

9. The post-sewing re-stitching machine according to claim 7 or 8, characterized in that: The hemming assembly further includes an upper pressing device. The upper pressing device includes an upper pressing plate, an upper pressing plate lifting cylinder, an upper pressing plate connecting seat, an upper pressing plate telescopic cylinder and an upper pressing plate linear guide rail. The upper pressing plate linear guide rail is fixedly arranged on the upper right part of the main frame body in the front-back direction by its guide rail and is located above the workbench plate. The upper pressing plate telescopic cylinder is fixedly connected to the slider of the upper pressing plate linear guide rail by its cylinder body, and its piston rod extends backward and is fixedly connected to the corresponding part of the main frame body. The upper pressing plate connecting seat is fixedly connected to the slider of the upper pressing plate linear guide rail. The upper pressing plate lifting cylinder is fixedly arranged on the upper pressing plate connecting seat by its cylinder body, and its piston rod extends downward. The upper pressing plate is horizontally fixedly arranged on the end of the piston rod of the upper pressing plate lifting cylinder in the left-right direction. The upper pressing plate is arranged in a left-right symmetric structure with respect to the plane passing through the 0 scale of the micrometer and vertically arranged in the front-back direction.

10. The post-sewing re-stitching machine according to claim 1, characterized in that: The feeding assembly includes a feeding driving device, a feeding guiding device, a feeding pressing plate, a pressing plate mounting frame and a pressing plate lifting assembly. The pressing plate mounting frame is driven by the feeding driving device to move left and right along the feeding guiding device. The feeding pressing plate is arranged on the pressing plate mounting frame in a liftable manner through the pressing plate lifting assembly.

11. The post-sewing re-stitching machine according to claim 10, characterized in that: The feeding guiding device includes a first linear guide rail and a second linear guide rail. Two sliders are arranged on the guide rails of the first linear guide rail and the second linear guide rail respectively. The feeding driving device includes a feeding driving motor, a feeding driving gear, a fixed feeding rack, a movable feeding rack and a feeding mounting seat. The feeding driving motor is fixedly arranged on the feeding mounting seat, and its motor shaft is arranged in the front-back direction and extends forward outside the feeding mounting seat. The feeding driving gear is transmissionally arranged on the motor shaft of the feeding driving motor. The fixed feeding rack is fixedly arranged on the upper middle part of the main frame body in the left-right direction, and its teeth are located on the lower side and mesh with the feeding driving gear from top to bottom. The first linear guide rail has its guide rail fixedly arranged on the upper middle part of the main frame body in the left-right direction, above the fixed feeding rack; the two sliders of the first linear guide rail are fixedly arranged on the upper front side of the feeding mounting seat in the left-right direction in sequence; the two sliders of the second linear guide rail are fixedly arranged on the lower front side of the feeding mounting seat in the left-right direction in sequence; the second linear guide rail has its guide rail fixedly arranged on the upper part of the pressing plate mounting frame in the left-right direction; the movable feeding rack is fixedly arranged on the upper part of the pressing plate mounting frame in the left-right direction, with its teeth on the upper side, meshing with the feeding driving gear from bottom to top; the movable feeding rack is above the second linear guide rail.

12. The post-sewing restorer according to claim 10, characterized in that: There are two groups of pressing plate lifting assemblies, and the two groups of pressing plate lifting assemblies are respectively called the left pressing plate lifting assembly and the right pressing plate lifting assembly according to their different left-right positions; the left pressing plate lifting assembly and the right pressing plate lifting assembly are respectively arranged on the left part and the right part of the pressing plate mounting frame; the structures of the two groups of pressing plate lifting assemblies are the same, and each includes a pressing plate connecting seat, a pressing plate lifting cylinder, a pressing plate lifting linear guide rail and a pressing plate lifting seat; the pressing plate connecting seat is fixedly arranged on the pressing plate mounting frame by its upper part; the pressing plate lifting cylinder is fixedly connected to the pressing plate connecting seat by its piston rod in the up-down direction; the pressing plate lifting linear guide rail has its guide rail fixedly arranged on the pressing plate connecting seat in the up-down direction; the pressing plate lifting seat is fixedly connected to the cylinder body of the pressing plate lifting cylinder and the slider of the pressing plate lifting linear guide rail; the left and right ends of the feeding pressing plate are respectively fixedly arranged on the pressing plate connecting seats of the left pressing plate lifting assembly and the right pressing plate lifting assembly, so that the feeding pressing plate is driven by the pressing plate lifting cylinders of the left pressing plate lifting assembly and the right pressing plate lifting assembly to move up and down along the pressing plate lifting linear guide rail.

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