Auxiliary positioning adjustment device and fully automatic cold folding and bagging machine

Abstract

This technical solution belongs to the field of garment sewing equipment technology, specifically involving an auxiliary positioning and adjustment device and a fully automatic cold folding and bagging machine. It includes a suction device for adsorbing the main body fabric on the worktable; a second auxiliary push rod and a second auxiliary push rod driving device for lifting the main body fabric upwards to create excess fabric in the middle; the suction device includes several suction holes on the worktable and a suction box, which is disposed on the worktable to cover the suction holes and is connected to a suction fan to create negative pressure to adsorb the main body fabric on the worktable; the second auxiliary push rod driving device drives the second auxiliary push rod to extend upwards beyond the worktable and lift the middle of the main body fabric upwards from below. A small excess fabric is left in the middle, which, after washing, shrinks and fits smoothly and snugly with the pocket fabric, further improving the quality and grade of the garment.

Description

[0001] This application is a divisional application of a Chinese patent (invention title: fully automatic cold folding and bagging machine, application number: 2018115427120, application date: December 17, 2018). Technical Field

[0002] This technical solution relates to the field of garment sewing equipment technology, specifically to an auxiliary positioning and adjustment device and a fully automatic cold folding and bagging machine. Background Technology

[0003] The main difference between a semi-automatic bag-applying machine and an automatic bag-applying machine lies in the application of its wrinkle-free folding technology. A semi-automatic bag-applying machine requires an electrically heated steam folding machine next to the machine to place the folded bag opening into the feeding part of the bag-applying machine for conveying and sewing. This is not only costly but also inefficient.

[0004] Automatic bag-sealing machines directly perform heat-free, iron-free cold folding of the bag shape using a folding device: a bag piece is placed on a bag template, and the folding blade on the folding frame of the folding device folds the sides, front, and two corners at the base of the bag piece. Simultaneously, the folding frame and the bag template descend, pressing the folded bag onto the worktable. After the folding frame and blade retract and leave the work area, a feeding or receiving platen moves above the bag template and presses down on the folded bag. The bag template then retracts, and the entire folding mechanism rises and resets, ending the folding process. The folded pocket fabric and body fabric are then fed to the sewing assembly for sewing via a corresponding feeding device. The feeding device typically includes a pocket presser foot for pressing the pocket fabric and a body presser foot for pressing the body fabric. A sewing gap corresponding to the shape of the pocket is maintained between the body presser foot and the pocket presser foot.

[0005] Existing automatic pocket attaching machines, after sewing the pockets, will affect the flatness of the pockets when the fabric shrinks after washing, which needs to be improved. Summary of the Invention

[0006] This technical solution provides an auxiliary positioning adjustment device and a fully automatic cold folding and bagging machine to improve the impact of fabric shrinkage on the flatness of the bag.

[0007] The purpose of this technical solution is achieved as follows:

[0008] An auxiliary positioning adjustment device, comprising

[0009] A suction device is used to absorb large pieces of fabric on the workbench.

[0010] The second auxiliary push rod and the second auxiliary push rod driving device are used to lift the main body fabric upward so that the middle of the main body fabric has a margin.

[0011] The suction device includes a plurality of suction holes on the workbench and a suction box. The suction box is disposed on the workbench to cover the suction holes. The suction box is connected to the suction fan to form a negative pressure to adsorb the bulk fabric on the workbench.

[0012] The second auxiliary push rod drive device is used to drive the second auxiliary push rod to extend upwards out of the worktable and lift the middle part of the main body fabric upwards from below.

[0013] Preferably, the suction device forms a suction area on the workbench; the suction area is distributed on the left and right sides of the second auxiliary push rod.

[0014] Preferably, the suction box is a shell-shaped structure with an upward opening, and the suction box is sealed and connected to the lower side of the workbench from bottom to top.

[0015] Preferably, the worktable is provided with a first push rod hole and a second push rod hole, the second push rod hole being used for the second auxiliary push rod to push out to form a clearance;

[0016] It also includes an electromagnet, a first auxiliary push rod, and a first auxiliary push rod driving device; the electromagnet is disposed on the lower side of the worktable, and the electromagnet has an electromagnet push rod hole that runs through it from top to bottom. The electromagnet push rod hole is coaxial with the first push rod hole of the worktable. The first auxiliary push rod is located in the electromagnet push rod hole of the electromagnet. The first auxiliary push rod driving device drives the first auxiliary push rod to extend upward out of the first push rod hole of the worktable for pressing and fixing the main body fabric onto the bag mold from below.

[0017] Preferably, the electromagnet is located inside the suction box.

[0018] Preferably, both the first auxiliary push rod drive device and the second auxiliary push rod drive device are cylinders.

[0019] Preferably, there are two suction boxes, which are divided into a front suction box and a rear suction box according to their front and rear positions.

[0020] This application also provides a fully automatic cold folding and bagging machine, including a frame, the frame being provided with a worktable, and further including any of the auxiliary positioning and adjustment devices described above.

[0021] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0022] 1. This technical solution utilizes a second auxiliary push rod drive device and a second auxiliary push rod. When the fabric shrinks significantly after washing, the piston rod of the cylinder in the second auxiliary push rod drive device extends upward, driving the second auxiliary push rod to extend upward beyond the worktable. This lifts the center of the main body fabric upward from below, creating a slight allowance in the center. This slight allowance in the center of the main body fabric (meaning the corresponding portion of the main body fabric is slightly wider when the pocket fabric is sewn onto it) allows the main body fabric to shrink and fit smoothly and snugly against the pocket fabric after washing, further improving the quality and grade of the garment.

[0023] 2. This technical solution utilizes an electromagnet, a first auxiliary push rod drive device, and a first auxiliary push rod. The electromagnet pulls the bag-shaped mold downwards, stabilizing it and allowing the pocket fabric and body fabric to adhere better to the worktable. The first auxiliary push rod drive device extends the first auxiliary push rod upwards beyond the worktable, firmly securing the body fabric to the bag-shaped mold from below, thus improving the quality of the folded edges. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the fully automatic cold folding and bagging machine of the present invention;

[0025] Figure 2 for Figure 1 A left-view diagram;

[0026] Figure 3 for Figure 1 A diagram showing the view from the right.

[0027] Figure 4 for Figure 1 A top-down view;

[0028] Figure 5 From Figure 1 A diagram showing the view from the upper left front;

[0029] Figure 6 From Figure 1 A schematic diagram showing the workbench assembly's protective cover, the folding device's mounting base protective cover, and the mounting base protective cover removed when viewed from the upper right front.

[0030] Figure 7 From Figure 1 The diagram shows the workbench assembly's protective cover, the folding device's mounting base protective cover, and the mounting base protective cover removed when viewed from the upper right rear.

[0031] Figure 8 for Figure 4 A top view of the corresponding components of the workbench assembly, the feeding sewing drive, the receiving device, the auxiliary positioning adjustment device, and the padding feeding device.

[0032] Figure 9 From Figure 1 A schematic diagram of the corresponding components of the workbench assembly, the feeding sewing drive device, the receiving device, the auxiliary positioning adjustment device, and the padding feeding device when viewed from the upper right rear.

[0033] Figure 10 From Figure 1 A schematic diagram of the corresponding components of the workbench assembly, the feeding sewing drive device, the receiving device, the auxiliary positioning adjustment device, and the padding feeding device when viewed from the upper left rear.

[0034] Figure 11 From Figure 1 An enlarged schematic diagram of the folding device when viewed from the upper left front;

[0035] Figure 12 From Figure 1 An enlarged schematic diagram of the folding device when viewed from the lower left front;

[0036] Figure 13 for Figure 1 A top-view enlarged schematic diagram of the mounting base of the hemming device, the bag mold assembly, and the bag mold drive device;

[0037] Figure 14 for Figure 1 A top-enlarged schematic diagram of the mounting base, folder, and folder drive of the folding device in the diagram;

[0038] Figure 15 for Figure 1 A bottom-view enlarged schematic diagram of the mounting base, folder, and folder drive of the folding device in the diagram;

[0039] Figure 16 From Figure 1 A magnified schematic diagram of the bag-shaped mold assembly when viewed from the upper left front;

[0040] Figure 17 From Figure 1 An enlarged schematic diagram of the structure of the corresponding components of the folding device when viewed from the upper left front;

[0041] Figure 17-1 for Figure 17 A schematic diagram of the structure of the left front folded edge component;

[0042] Figure 17-2 for Figure 17 A structural diagram of the right front folded edge component;

[0043] Figure 18 for Figure 17 A schematic diagram of the structure of the folding machine base plate, including the front folding knife drive device, the front connecting plate, the left folding knife drive device, the left connecting plate, the right folding knife drive device, the right connecting plate, and the upper pressure plate;

[0044] Figure 19 From Figure 1 An enlarged schematic diagram of the folding edge assembly of the folding device when viewed from the upper left front;

[0045] Figure 20 for Figure 14 An enlarged schematic diagram of the fourth quick-release locking cylinder in the middle;

[0046] Figure 21 for Figure 20 AA section view diagram;

[0047] Figure 22 for Figure 1 Enlarged schematic diagram of the padding feeding device in the middle;

[0048] Figure 23 for Figure 22 A diagram showing the view from the right.

[0049] Figure 24 for Figure 22 Rear view diagram;

[0050] Figure 25 for Figure 22 A left-view diagram;

[0051] Figure 26 for Figure 22 A top-down view;

[0052] Figure 26-1 From Figure 22 A schematic diagram of the structure of the mounting box and the adjustable suction box when viewed from the upper left front;

[0053] Figure 27 From Figure 1 An enlarged schematic diagram of the material feeding tray assembly of the padding feeding device when viewed from the upper left front;

[0054] Figure 28 From Figure 22 A schematic diagram of the feeding assembly of the padding feeding device when viewed from the upper left rear.

[0055] Figure 29 From Figure 22 A schematic diagram of the conveying assembly, shearing assembly, and connecting seat assembly of the padding feeding device when viewed from the upper left front.

[0056] Figure 30 for Figure 1 A top view of the workbench assembly, feeding device, and feeding sewing drive device;

[0057] Figure 31 From Figure 1An enlarged schematic diagram of the guide plate of the feed bag presser foot of the feed assembly when viewed from the upper right front;

[0058] Figure 32 From Figure 1 An enlarged schematic diagram of the feeding connection seat, the main body presser foot drive device, and the pocket presser foot drive device of the feeding device when viewed from the lower left front.

[0059] Figure 33 From Figure 1 An enlarged schematic diagram of the structure of the feeding device's main pressing foot and the feeding bag pressing foot when viewed from the lower left rear.

[0060] Figure 34 From Figure 1 An enlarged schematic diagram of the structure of the front adjusting plate, left adjusting plate, and right adjusting plate of the feeding bag presser foot of the feeding device when viewed from the upper right front;

[0061] Figure 35 From Figure 1 An enlarged schematic diagram of the material receiving device when viewed from the upper left front;

[0062] Figure 36 From Figure 1 An enlarged schematic diagram of the material receiving device when viewed from the upper left rear.

[0063] Figure 37 From Figure 1 An enlarged schematic diagram of the material receiving device when viewed from the upper right front;

[0064] Figure 38 From Figure 1 An enlarged schematic diagram of the auxiliary positioning component when viewed from the lower right rear.

[0065] Figure 39 This is a schematic diagram of the folding device of Embodiment 3 of the present invention;

[0066] Figure 40 This is a schematic diagram of the bag mold of Embodiment 3 of the present invention.

[0067] The labels in the attached diagram are:

[0068] Workbench assembly 1, machine frame 1-1, workbench plate 1-2, first push rod hole 1-2a, second push rod hole 1-2b, suction hole 1-2c, sewing machine needle plate hole 1-2d, lifting platform 1-3, padding groove 1-3-1, platform drive assembly 1-4, double cylinder 1-4a, protective stop bar 1-5, protective cover 1-6.

[0069] Sewing assembly 2, sewing machine 2-1, needle plate 2-1a,

[0070] Folding device 3, mounting base 31, mounting base protective cover 31-1, mounting base protective cover 31-2

[0071] Mounting bracket drive device 32

[0072] Folding tool 33, folding tool base 33-1, folding tool base plate 33-2

[0073] Quick-release locking cylinder 33-3, first quick-release locking cylinder 33-3-1, second quick-release locking cylinder 33-3-2, third quick-release locking cylinder 33-3-3, fourth quick-release locking cylinder 33-3-4, fifth quick-release locking cylinder 33-3-5, sixth quick-release locking cylinder 33-3-6, seventh quick-release locking cylinder 33-3-7, eighth quick-release locking cylinder 33-3-8, ninth quick-release locking cylinder 33-3-9, cylinder body 33-31, vertical insertion hole 33-311, horizontal insertion hole 33-312, piston rod 33-32, screw plug 33-33, front quick-release seat 33-41, left quick-release seat 33-42, right quick-release seat 33-43.

[0074] Front folding knife drive device 33-5, front connecting plate 33-5-1, left folding knife drive device 33-6, left connecting plate 33-6-1, right folding knife drive device 33-7, right connecting plate 33-7-1, upper pressure plate 33-8, upper pressure plate quick-release shaft 33-8-1, folding knife assembly 33-9, front folding knife 33-91, left folding knife 33-92, right folding knife 33-93.

[0075] Corner-folding component 33-10

[0076] Left-side corner-splitting folding knife drive device 33-10-1, right-side corner-splitting folding knife drive device 33-10-2, adjusting assembly 33-10-3, first cylindrical shaft 33-10-31, left linear bearing 33-10-32, left connecting seat 33-10-33, right linear bearing 33-10-34, right connecting seat 33-10-35, left rear corner-splitting folding knife 33-10-4, right rear corner-splitting folding knife 33-10-5.

[0077] Left front folding edge assembly 33-11, left front folding blade drive device 33-11-1, left front folding blade quick-release assembly 33-11-2, left front quick-release seat 33-11-2a, front insertion hole 33-11-2a1, rear insertion hole 33-11-2a2, left first locking cylinder 33-11-2b, left second locking cylinder 33-11-2c, left front folding blade quick-release seat 33-11-3, left front upper folding blade 33-11-4, left front lower folding blade 33-11-5.

[0078] Right front folding edge assembly 33-12, right front folding blade drive device 33-12-1, right front folding blade quick-release assembly 33-12-2, right front quick-release seat 33-12-2a, front insertion hole 33-12-2a1, rear insertion hole 33-12-2a2, right side first locking cylinder 33-12-2b, right side second locking cylinder 33-12-2c, right front folding blade quick-release seat 33-12-3, right front upper folding blade 33-12-4, right front lower folding blade 33-12-5.

[0079] Folding machine drive device 34, folding machine front and rear drive cylinder 34-1, folding machine front and rear guide assembly 34-2, folding machine linear bearing 34-2-1, folding machine cylindrical shaft 34-2-2, folding machine up and down drive cylinder 34-3, folding machine up and down guide assembly 34-4.

[0080] Folding machine buffer assembly 34-5, front and rear hydraulic buffers of the folding machine 34-5a, upper and lower hydraulic buffers of the folding machine 34-5b, folding machine connecting seat 34-6.

[0081] Bag mold assembly 35, bag mold mounting base 35-1, bag mold 35-2, shock absorber 35-3.

[0082] Bag positioning assembly 35-4, bag positioning seat 35-4-1, bag clamping torsion spring 35-4-2.

[0083] Bag mold quick-release assembly 35-5, bag mold locking cylinder 35-5-1, bag mold quick-release shaft 35-5-2, annular snap-fit ​​groove 35-5-2a.

[0084] Pocket molded cushioning assembly 35-6,

[0085] Bag mold drive device 36, bag mold front and rear drive cylinder 36-1, bag mold front and rear guide assembly 36-2, bag mold cylindrical shaft 36-2-2.

[0086] Auxiliary positioning and adjustment device 4, suction box 4-1, front suction box 4-1a, air outlet 4-1a-1, rear suction box 4-1b, air outlet 4-1b-1, electromagnet 4-2, electromagnet push rod hole 4-2a, first auxiliary push rod 4-3, first auxiliary push rod drive device 4-4, second auxiliary push rod 4-5, second auxiliary push rod drive device 4-6.

[0087] Feeding device 5, feeding connecting seat 51, feeding body pressure foot 52, body pressure foot quick-release shaft 52-1, annular snap-fit ​​groove 52-1a.

[0088] The main body presser foot drive device 53 includes: a left-side main body drive cylinder 53-1, a left-side main body presser foot mounting base 53-2, a connector hole 53-2a, a left-side main body presser foot linear guide 53-3, a left-side main body presser foot locking cylinder 53-4, a right-side main body drive cylinder 53-5, a right-side main body presser foot mounting base 53-6, a connector hole 53-6a, a right-side main body presser foot linear guide 53-7, and a right-side main body presser foot locking cylinder 53-8.

[0089] Feed bag presser foot 54

[0090] Guide plate 54-1, pocket presser foot quick-release shaft 54-1-1, annular snap-fit ​​groove 54-1-1a, first guide hole 54-1a, second guide hole 54-1b, third guide hole 54-1c.

[0091] Pocket presser foot adjusting cylinder 54-2,

[0092] Adjusting push plate 54-3, connecting seat 54-3-1, pin 54-3-2, left push plate guide hole 54-3a, right push plate guide hole 54-3b.

[0093] Fixed pressure plate 54-5,

[0094] Front adjusting pressure plate 54-6, fixed pressure plate front mounting notch 54-6a; left adjusting pressure plate 54-7, fixed pressure plate left mounting notch 54-7a; right adjusting pressure plate 54-8, fixed pressure plate right mounting notch 54-8a.

[0095] Pocket presser foot drive device 55, pocket presser foot mounting base 55-1, insertion hole 55-1a, adjusting plate 55-1-1, left side pocket drive cylinder 55-2, left side pocket presser foot linear guide rail 55-3, left side pocket presser foot locking cylinder 55-4, right side pocket drive cylinder 55-5, right side pocket presser foot linear guide rail 55-6, right side pocket presser foot locking cylinder 55-7, pocket presser foot limit cylinder 55-8.

[0096] Feeding sewing drive device 6,

[0097] X-axis drive assembly 6a, X-axis drive motor 6a-1, X-axis first synchronous belt pulley 6a-2, X-axis second synchronous belt pulley 6a-3, X-axis third synchronous belt pulley 6a-4, X-axis fourth synchronous belt pulley 6a-5, X-axis first transmission shaft 6a-6, X-axis second mounting shaft 6a-7, X-axis first synchronous belt 6a-8, X-axis second synchronous belt 6a-9, X-axis front linear guide 6a-10, X-axis rear linear guide 6a-11, X-axis mounting base 6a-12.

[0098] Y-axis drive device 6b, Y-axis drive motor 6b-1, Y-axis first synchronous belt pulley 6b-2, Y-axis second synchronous belt pulley 6b-3, Y-axis third synchronous belt pulley 6b-4, Y-axis fourth synchronous belt pulley 6b-5, Y-axis ball spline 6b-6, Y-axis second mounting shaft 6b-7, Y-axis first synchronous belt 6b-8, Y-axis second synchronous belt 6b-9, Y-axis left linear guide 6b-10, Y-axis right linear guide 6b-11, Y-axis front connecting seat 6b-12, Y-axis rear connecting seat 6b-13, feeding device mounting seat 6b-14, padding feeding device 7, material tray assembly 71, material tray mounting rod 71-1, material tray baffle 71-2, locking handwheel 71-2a, Conveying assembly 72, Drive motor 72-1, Drive roller 72-2, Driven roller 72-3, Positioning guide assembly 72-4, Left positioning guide assembly 72-4a, Right positioning guide assembly 72-4b, Adjusting seat 72-4-1, Adjusting shaft 72-4-2, Adjusting retaining ring 72-4-3, Pressing assembly 73-5, Pressing drive cylinder 73-51, Pressure plate 73-52, Shearing assembly 73, Left shearing assembly 73a, Right shearing assembly 73b, Drive cylinder 73-1, Cutter holder 73-2, Moving cutter 73-3, Fixed cutter 73-4, Pressing assembly 73-5, Pressing drive cylinder 73-51, Pressure plate 73-52.

[0099] Feeding assembly 74, mounting bracket 74-1, feeding lifting drive device 74-2, lifting guide assembly 74-3, lifting seat 74-4, feeding front and rear drive device 74-5, front and rear guide assembly 74-6, suction box assembly 74-7, padding suction panel 74-71, suction hole 74-71a, mounting box 74-72, adjustable suction box 74-73.

[0100] Connecting seat assembly 76, fixed seat plate 76-1, guide assembly 76-2, movable seat 76-3, guide post 76-3-1, adjusting screw 76-3-2, knob plunger 76-4.

[0101] Material receiving device 8, material receiving mounting frame 8-1, material discharging frame 8-2, linear bearing 8-2a, linear bearing mounting seat 8-2b, linear bearing mounting shaft 8-2c, material feeding frame 8-3, material discharging frame drive cylinder 8-4, material feeding frame drive cylinder 8-5, clamping frame 8-6, clamping frame drive cylinder 8-7.

[0102] Material feeding assembly 9, pocket fabric feeding box 9-1, body fabric rack 9-2, padding 100. Detailed Implementation

[0103] Example 1:

[0104] See Figures 1 to 38The fully automatic cold folding and bagging machine of the present invention includes a workbench assembly 1, a sewing assembly 2, a folding device 3, an auxiliary positioning and adjustment device 4, a feeding device 5, a feeding and sewing drive device 6, a padding feeding device 7, a receiving device 8, and a discharging assembly 9.

[0105] See Figures 1 to 10 and Figure 30 The workbench assembly 1 includes a frame 1-1, a workbench plate 1-2, a lifting plate 1-3, a plate drive assembly 1-4, a protective stop bar 1-5, and a protective cover 1-6. The workbench plate 1-2 is horizontally fixed on the frame 1-1. The left rear part of the workbench plate 1-2 has a lifting plate hole that runs through it vertically. The left middle part of the workbench plate 1-2 also has a pad feeding hole that runs through it vertically, located in front of the lifting plate hole. The left front part of the workbench plate 1-2 has a first push rod hole 1-2a and a second push rod hole 1-2b that run through it vertically from front to back. The left front part of the workbench plate 1-2 also has two sets of suction holes 1-2c that run through it vertically. One set of suction holes 1-2c is located in front of the first push rod hole 1-2a, and the other set of suction holes 1-2c is located on the left and right sides of the first push rod hole 1-2a. The right center of the worktable 1-2 has a sewing machine needle plate hole 1-2d that runs through it from top to bottom. The worktable drive device 1-4 includes two worktable cylinders 1-4a, both of which are SMC double cylinders, specifically model CXSM15-10. The two worktable cylinders 1-4a are arranged parallel to each other from left to right on the lower left rear part of the worktable 1-2, located on the left and right sides of the lifting platform hole. The plane containing the two piston rods of the worktable cylinders 1-4a is vertically arranged in the front-back direction and extends upward. The lifting platform 1-3 is horizontally fixed on the upper end of the piston rods of the two worktable cylinders 1-4a, and is driven by the two worktable cylinders 1-4a to move the lifting platform 1-3 up and down. The shape and size of the lifting platform 1-3 correspond to the shape and size of the lifting platform hole of the worktable 1-2. The front side of the lifting platform 1-3 has a forward-facing liner groove 1-3-1 that runs through it from top to bottom. In the initial state, the piston rod of the platform cylinder 1-4a extends upward, positioning the platform 1-3 within the lifting platform hole of the worktable 1-2, with the upper surface of the platform 1-3 flush with the upper surface of the worktable 1-2. The protective barrier 1-5 is located on the front right side of the frame 1-1, blocking the working area of ​​the receiving device 8 from the front and right, preventing accidental entry and injury.

[0106] See Figures 1 to 7 The sewing assembly 2 includes a sewing machine 2-1. The sewing machine 2-1 is fixedly mounted on the frame 1-1 of the workbench assembly 1 in a left-right direction. The needle plate 2-1a of the sewing machine 2-1 is disposed in the sewing machine needle plate hole 1-2d of the workbench plate 1-2.

[0107] See Figures 1 to 7 and Figures 11 to 21 The folding device 3 includes a mounting base 31, a mounting base drive device 32, a folder 33, a folder drive device 34, a bag mold assembly 35, and a bag mold drive device 36.

[0108] Mounting base 31 is rotatably mounted on frame 1-1 from the lower rear. Mounting base drive device 32 is cylinder-driven, using an Airtac ACE series compact cylinder, specifically model ACE80×5. The lower part of the cylinder body of mounting base drive device 32 is hinged to frame 1-1, and the upper end of the piston rod of the cylinder is hinged to the lower front part of mounting base 31 via a corresponding floating joint, thus driving the front of mounting base 31 to rise or fall. Mounting base 31 has a protective cover 31-1 on its upper part and a protective shield 31-2 at its rear.

[0109] The folding device 33 includes a folding device base 33-1, a folding device base bottom plate 33-2, a quick-release locking cylinder 33-3, a front quick-release seat 33-41, a left quick-release seat 33-42, a right quick-release seat 33-43, a front folding knife drive device 33-5, a left folding knife drive device 33-6, a right folding knife drive device 33-7, an upper pressure plate 33-8, a folding knife assembly 33-9, a corner folding assembly 33-10, a left front folding assembly 33-11, and a right front folding assembly 33-12. The folding knife assembly 33-9 includes a front folding knife 33-91, a left folding knife 33-92, and a right folding knife 33-93. The folding device base bottom plate 33-2 is fixedly mounted on the lower side of the folding device base 33-1.

[0110] There are nine quick-release locking cylinders 33-3. These nine quick-release locking cylinders 33-3 are named, in order, the first quick-release locking cylinder 33-3-1, the second quick-release locking cylinder 33-3-2, the third quick-release locking cylinder 33-3-3, the fourth quick-release locking cylinder 33-3-4, the fifth quick-release locking cylinder 33-3-5, the sixth quick-release locking cylinder 33-3-6, the seventh quick-release locking cylinder 33-3-7, the eighth quick-release locking cylinder 33-3-8, and the ninth quick-release locking cylinder 33-3-9.

[0111] All nine quick-release locking cylinders 33-3 have the same structure; they are all double-acting cylinders, each including a cylinder body 33-31, a piston rod 33-32, and a plug 33-33. The plug 33-33 seals the corresponding part of the piston rod 33-32 within the cylinder body 33-31. The end of the piston rod 33-32 is frustoconical. The cylinder body 33-31 has vertical insertion holes 33-311 along its upper edge. The axis of the piston rod 33-32 is perpendicular to the axis of the vertical insertion holes 33-311, allowing the end of the piston rod 33-32 to extend into the vertical insertion holes 33-311. The cylinder body 33-31 has a horizontal insertion hole 33-312 along its front-rear direction. The axis of the piston rod 33-32 is perpendicular to the axis of the horizontal insertion hole 33-312. The end of the piston rod 33-32 can be inserted into the horizontal insertion hole 33-312. The horizontal insertion hole 33-312 and the vertical insertion hole 33-311 are perpendicular to each other and are interconnected.

[0112] The first quick-release locking cylinder 33-3-1 is fixedly mounted on the upper rear part of the bottom plate 33-2 of the folding machine base by its cylinder body. Its vertical insertion hole 33-311 is arranged in the vertical direction. The bottom plate 33-2 of the folding machine base is provided with a through hole that communicates with the vertical insertion hole 33-311 and passes through it from top to bottom.

[0113] The second quick-release locking cylinder 33-3-2 and the third quick-release locking cylinder 33-3-3 are symmetrically arranged on the upper center of the base plate 33-2 of the folding device. The vertical insertion holes 33-311 of the second quick-release locking cylinder 33-3-2 and the third quick-release locking cylinder 33-3-3 are both arranged vertically. The base plate 33-2 of the folding device is provided with through holes that communicate with the vertical insertion holes 33-311 of the second quick-release locking cylinder 33-3-2 and the third quick-release locking cylinder 33-3-3, passing through them vertically.

[0114] The upper pressure plate 33-8 is hexagonal, corresponding to the shape of the sewn pocket. Three quick-release shafts 33-8-1 are fixedly mounted on the upper side of the upper pressure plate 33-8, all three shafts being vertically arranged. The upper part of each of the three quick-release shafts 33-8-1 is provided with a corresponding annular locking groove or frustum-shaped insertion hole with an isosceles trapezoidal cross-section, corresponding to the end shape of the piston rod of the quick-release locking cylinder 33-3. In this embodiment, an annular locking groove is used. The three quick-release shafts 33-8-1 on the upper pressure plate 33-8 pass through the corresponding through holes on the bottom plate 33-2 of the folding machine base from bottom to top and are inserted into the vertical insertion holes 33-311 of the first quick-release locking cylinder 33-3-1, the second quick-release locking cylinder 33-3-2, and the third quick-release locking cylinder 33-3-3. Then, the piston rods 33-32 of the first quick-release locking cylinder 33-3-1, the second quick-release locking cylinder 33-3-2, and the third quick-release locking cylinder 33-3-3 extend into the annular snap-fit ​​groove at the upper part of the upper pressure plate quick-release shaft 33-8-1, thereby quickly and firmly fixing the upper pressure plate 33-8 to the lower side of the bottom plate 33-2 of the folding machine base.

[0115] The front folding knife drive device 33-5 uses an SMC CQ2B25-15 thin-film cylinder. The front folding knife drive device 33-5 is fixedly mounted on the upper rear part of the folding machine base plate 33-2 via a corresponding mounting base, with its piston rod extending forward. A front connecting plate 33-5-1 is fixedly connected to the piston rod of the front folding knife drive device 33-5. The front connecting plate 33-5-1 is slidably connected to the folding machine base plate 33-2, and its lower surface is flush with the lower surface of the folding machine base plate 33-2.

[0116] The fourth quick-release locking cylinder 33-3-4 and the fifth quick-release locking cylinder 33-3-5 are symmetrically arranged on the upper side of the front connecting plate 33-5-1. The vertical insertion holes 33-311 of the fourth quick-release locking cylinder 33-3-4 and the fifth quick-release locking cylinder 33-3-5 are both arranged vertically. The front connecting plate 33-5-1 is provided with a through hole that communicates with the vertical insertion holes 33-311 of the fourth quick-release locking cylinder 33-3-4 and the fifth quick-release locking cylinder 33-3-5, and passes through it vertically.

[0117] Both the left-side folding knife drive device 33-6 and the right-side folding knife drive device 33-7 use SMC CQ2B25-15 thin-film cylinders. The left-side and right-side folding knife drive devices 33-6 and 33-7 are symmetrically fixedly mounted on the upper center of the folding machine base plate 33-2. The piston rod of the left-side folding knife drive device 33-6 extends to the left, and a left connecting plate 33-6-1 is fixedly connected to this piston rod. The left connecting plate 33-6-1 is slidably connected to the folding machine base plate 33-2, and its lower surface is flush with the lower surface of the folding machine base plate 33-2. The piston rod of the right-side folding knife drive device 33-7 extends to the right, and a right connecting plate 33-7-1 is fixedly connected to this piston rod. The right connecting plate 33-7-1 is slidably connected to the folding machine base plate 33-2, and its lower surface is flush with the lower surface of the folding machine base plate 33-2.

[0118] The sixth quick-release locking cylinder 33-3-6 and the seventh quick-release locking cylinder 33-3-7 are fixedly mounted on the left connecting plate 33-6-1 from front to back, with their piston rods extending rearward. The vertical insertion holes 33-311 of both the sixth and seventh quick-release locking cylinders 33-3-6 and 33-3-7 are arranged vertically. The left connecting plate 33-6-1 has through holes that communicate with the vertical insertion holes 33-311 of both cylinders.

[0119] The eighth quick-release locking cylinder 33-3-8 and the ninth quick-release locking cylinder 33-3-9 are fixedly mounted on the right connecting plate 33-7-1 from front to back, with their piston rods extending rearward. The vertical insertion holes 33-311 of both the eighth and ninth quick-release locking cylinders 33-3-8 and 33-3-9 are arranged vertically. The right connecting plate 33-7-1 has a through hole that communicates with the vertical insertion holes 33-311 of both cylinders.

[0120] Two quick-release shafts are provided on the rear side of the front quick-release base 33-41, both of which are horizontally arranged in the front-to-back direction. The rear of each quick-release shaft has a corresponding annular snap-fit ​​groove or frustum-shaped insertion hole with an isosceles trapezoidal cross-section, corresponding to the end shape of the piston rod of the quick-release locking cylinder 33-3. In this embodiment, it is an annular snap-fit ​​groove. The two quick-release shafts on the front quick-release base 33-41 are inserted from front to back into the horizontal insertion holes 33-312 of the fourth quick-release locking cylinder 33-3-4 and the fifth quick-release locking cylinder 33-3-5, respectively. Then, the piston rods 33-32 of the fourth quick-release locking cylinder 33-3-4 and the fifth quick-release locking cylinder 33-3-5 extend into the annular snap-fit ​​grooves on the quick-release shafts, thereby quickly and securely connecting the front quick-release base 33-41 to the front side of the folding machine base plate 3-2. The front folding blade 33-91 is fixedly mounted on the lower side of the front quick-release seat 33-41.

[0121] Two quick-release shafts are provided on the right side of the left quick-release base 33-42, both of which are horizontally arranged in the left-right direction. The right side of each quick-release shaft has a corresponding annular snap-fit ​​groove or frustum-shaped insertion hole with an isosceles trapezoidal cross-section, corresponding to the end shape of the piston rod of the quick-release locking cylinder 33-3. In this embodiment, it is an annular snap-fit ​​groove. The two quick-release shafts on the left quick-release base 33-42 are inserted from left to right into the horizontal insertion holes 33-312 of the sixth quick-release locking cylinder 33-3-6 and the seventh quick-release locking cylinder 33-3-7, respectively. Then, the piston rods 33-32 of the sixth quick-release locking cylinder 33-3-6 and the seventh quick-release locking cylinder 33-3-7 extend into the annular snap-fit ​​grooves on the quick-release shafts, thereby quickly and securely connecting the left quick-release base 33-42 to the left side of the folding machine base plate 33-2. The left front folding knife 33-92 is fixedly mounted on the lower side of the left quick-release seat 33-42.

[0122] Two quick-release shafts are provided on the left side of the right quick-release base 33-43, both of which are horizontally arranged in the left-right direction. The left side of each quick-release shaft has a corresponding annular snap-fit ​​groove or frustum-shaped insertion hole with an isosceles trapezoidal cross-section, corresponding to the end shape of the piston rod of the quick-release locking cylinder 33-3. In this embodiment, it is an annular snap-fit ​​groove. The two quick-release shafts on the right quick-release base 33-43 are inserted from right to left into the horizontal insertion holes 33-312 of the eighth quick-release locking cylinder 33-3-8 and the ninth quick-release locking cylinder 33-3-9, respectively. Then, the piston rods 33-32 of the eighth quick-release locking cylinder 33-3-8 and the ninth quick-release locking cylinder 33-3-9 extend into the annular snap-fit ​​grooves on the quick-release shafts, thereby quickly and securely connecting the right quick-release base 33-43 to the right side of the folding machine base plate 33-2. The right front folding knife 33-93 is fixedly mounted on the lower side of the right quick-release seat 33-43.

[0123] See Figure 19The corner-folding assembly 33-10 includes a left corner-folding blade drive device 33-10-1, a right corner-folding blade drive device 33-10-2, an adjustment assembly 33-10-3, a left rear corner-folding blade 33-10-4, and a right rear corner-folding blade 33-10-5. The adjustment assembly 33-10-3 includes a first cylindrical shaft 33-10-31, a left linear bearing 33-10-32, a left connecting seat 33-10-33, a right linear bearing 33-10-34, and a right connecting seat 33-10-35.

[0124] The first cylindrical shaft 33-10-31 is horizontally fixedly mounted on the upper middle part of the hemming machine base 33-1 in a left-right direction. The left linear bearing 33-10-32 and the right linear bearing 33-10-34 are slidably mounted on the left and right parts of the first cylindrical shaft 33-10-31, respectively. The left connecting seat 33-10-33 is slidably connected to the hemming machine base 33-1 and fixedly connected to the outer sleeve of the left linear bearing 33-10-32. The right connecting seat 33-10-35 is slidably connected to the hemming machine base 33-1 and fixedly connected to the outer sleeve of the right linear bearing 33-10-34.

[0125] The left-side corner-splitting folding knife drive device 33-10-1 is driven by a cylinder or a motor; in this embodiment, it uses an SMC CRB2W30 swing cylinder. The left-side corner-splitting folding knife drive device 33-10-1 is fixedly mounted on the left connecting seat 33-10-33 by its cylinder body, and its swing shaft extends downwards. The left rear corner-splitting folding knife 33-10-4 is fixedly mounted on the swing shaft of the left-side corner-splitting folding knife drive device 33-10-1 by its central part.

[0126] The right-side corner-splitting folding knife drive device 33-10-2 is driven by a cylinder or a motor; in this embodiment, it uses an SMC CRB2W30 swing cylinder. The right-side corner-splitting folding knife drive device 33-10-2 is fixedly mounted on the right connecting seat 33-10-35 by its cylinder body, and its swing shaft extends downwards. The right rear corner-splitting folding knife 33-10-5 is fixedly mounted on the swing shaft of the right-side corner-splitting folding knife drive device 33-10-2 by its central part.

[0127] See Figure 17 and Figure 17-1 The left front folding assembly 33-11 includes a left front folding knife drive device 33-11-1, a left front folding knife quick-release assembly 33-11-2, a left front folding knife quick-release seat 33-11-3, a left front upper folding knife 33-11-4, and a left front lower folding knife 33-11-5.

[0128] The left front folding knife drive device 33-11-1 is driven by a cylinder. In this embodiment, an Airtac TACQ20×15 guide rod thin cylinder is used. The left front folding knife drive device 33-11-1 is fixedly mounted on the upper left front part of the folding machine base plate 33-2 by the cylinder body of its cylinder through a corresponding mounting seat.

[0129] The left front folding knife quick-release assembly 33-11-2 includes a left front quick-release seat 33-11-2a, a left first locking cylinder 33-11-2b, and a left second locking cylinder 33-11-2c. Both the left first locking cylinder 33-11-2b and the left second locking cylinder 33-11-2c are SMC CQ2B12-5 thin-type cylinders. The piston rods of the left first locking cylinder 33-11-2b and the left second locking cylinder 33-11-2c have frustum-shaped ends.

[0130] The front of the left front quick-release bracket 33-11-2a has two interconnected and perpendicular front insertion holes 33-11-2a1 on the same vertical plane. One front insertion hole 33-11-2a1 is horizontally positioned, and the other is vertically positioned. The front of the left front quick-release bracket 33-11-2a also has a left front piston rod hole that communicates with the two front insertion holes 33-11-2a1. The left front piston rod hole is horizontally positioned, and its axis is perpendicular to the plane containing the two front insertion holes 33-11-2a1. The rear of the left front quick-release bracket 33-11-2a has two interconnected and perpendicular rear insertion holes 33-11-2a2 on the same vertical plane. One rear insertion hole 33-11-2a2 is horizontally positioned, and the other is vertically positioned. The rear of the left front quick-release seat 33-11-2a has a left rear piston rod hole that communicates with the two rear insertion holes 33-11-2a2. The left rear piston rod hole is horizontally positioned, and its axis is perpendicular to the plane containing the two rear insertion holes 33-11-2a2. The left first locking cylinder 33-11-2b is fixedly mounted on the left front quick-release seat 33-11-2a by its cylinder body. Its piston rod is located in the left front piston rod hole of the left front quick-release seat 33-11-2a, and when extended, it can reach into the two front insertion holes 33-11-2a1. The left second locking cylinder 33-11-2c is fixedly mounted on the left front quick-release seat 33-11-2a by its cylinder body. Its piston rod is located in the left rear piston rod hole of the left rear quick-release seat 33-11-2a, and when extended, it can reach into the two rear insertion holes 33-11-2a2.

[0131] The upper side of the left front folding knife quick-release base 33-11-3 is provided with two quick-release shafts, both of which are vertically arranged in the vertical direction. The upper part of each of the two quick-release shafts is provided with a corresponding annular snap-fit ​​groove or frustum-shaped insertion hole with an isosceles trapezoidal cross section, corresponding to the end shape of the piston rod of the left first locking cylinder 33-11-2b and the left second locking cylinder 33-11-2c. In this embodiment, it is an annular snap-fit ​​groove. The two quick-release shafts of the left front folding knife quick-release base 33-11-3 are inserted from bottom to top into the vertically arranged front insertion hole 33-11-2a1 and the vertically arranged rear insertion hole 33-11-2a2 of the left front quick-release base 33-11-2a, respectively. Then, the piston rods of the left first locking cylinder 33-11-2b and the left second locking cylinder 33-11-2c extend out, and their front ends extend into the annular snap-fit ​​grooves of the corresponding quick-release shafts, thereby quickly fixing the left front folding knife quick-release base 33-11-3 onto the left front quick-release base 33-11-2a.

[0132] The left front upper folding blade 33-11-4 and the left front lower folding blade 33-11-5 are fixedly mounted on the lower side of the left front folding blade quick-release base 33-11-3 from bottom to top. The left front upper folding blade 33-11-4 is on the same horizontal plane as the front folding blade 33-91 and the left folding blade 33-92, and the shapes of its left and right sides correspond to the corresponding parts of the front folding blade 33-91 and the left folding blade 33-92.

[0133] See Figure 17 and Figure 17-2 The right front folding assembly 33-12 includes a right front folding knife drive device 33-12-1, a right front folding knife quick-release assembly 33-12-2, a right front folding knife quick-release seat 33-12-3, a right front upper folding knife 33-12-4, and a right front lower folding knife 33-12-5.

[0134] The right front folding knife drive device 33-12-1 is driven by a cylinder. In this embodiment, an Airtac TACQ20×15 guide rod thin cylinder is used. The right front folding knife drive device 33-12-1 is fixedly mounted on the upper right front part of the folding machine base plate 33-2 by the cylinder body of its cylinder through a corresponding mounting seat.

[0135] The right front folding knife quick-release assembly 33-12-2 includes a right front quick-release seat 33-12-2a, a right first locking cylinder 33-12-2b, and a right second locking cylinder 33-12-2c. Both the right first locking cylinder 33-12-2b and the right second locking cylinder 33-12-2c are SMC CQ2B12-5 thin-type cylinders. The piston rods of both the right first locking cylinder 33-12-2b and the right second locking cylinder 33-12-2c have frustum-shaped ends.

[0136] The front of the right front quick-release bracket 33-12-2a has two interconnected and perpendicular front insertion holes 33-12-2a1 on the same vertical plane. One front insertion hole 33-12-2a1 is horizontally positioned, and the other is vertically positioned. The front of the right front quick-release bracket 33-12-2a also has a right front piston rod hole that communicates with the two front insertion holes 33-12-2a1. The right front piston rod hole is horizontally positioned, and its axis is perpendicular to the plane containing the two front insertion holes 33-12-2a1. The rear of the right front quick-release bracket 33-12-2a has two interconnected and perpendicular rear insertion holes 33-12-2a2 on the same vertical plane. One rear insertion hole 33-12-2a2 is horizontally positioned, and the other is vertically positioned. The rear of the right front quick-release seat 33-12-2a has a right rear piston rod hole that communicates with the two rear insertion holes 33-12-2a2. The right rear piston rod hole is horizontally positioned, and its axis is perpendicular to the plane containing the two rear insertion holes 33-12-2a2. The right first locking cylinder 33-12-2b is fixedly mounted on the right front quick-release seat 33-12-2a by its cylinder body. Its piston rod is located in the right front piston rod hole of the right front quick-release seat 33-12-2a, and when extended, it can reach into the two front insertion holes 33-12-2a1. The right second locking cylinder 33-12-2c is fixedly mounted on the right front quick-release seat 33-12-2a by its cylinder body. Its piston rod is located in the left rear piston rod hole of the right rear quick-release seat 33-12-2a, and when extended, it can reach into the two rear insertion holes 33-12-2a2.

[0137] The upper side of the right front folding knife quick-release base 33-12-3 is provided with two quick-release shafts, both of which are vertically arranged in the vertical direction. The upper part of each of the two quick-release shafts is provided with a corresponding annular snap-fit ​​groove or frustum-shaped insertion hole with an isosceles trapezoidal cross section, corresponding to the end shape of the piston rod of the right first locking cylinder 33-12-2b and the right second locking cylinder 33-12-2c. In this embodiment, it is an annular snap-fit ​​groove. The two quick-release shafts of the right front folding knife quick-release base 33-12-3 are inserted from bottom to top into the vertically arranged front insertion hole 33-12-2a1 and the vertically arranged rear insertion hole 33-12-2a2 of the right front quick-release base 33-12-2a, respectively. Then, the piston rods of the right first locking cylinder 33-12-2b and the right second locking cylinder 33-12-2c extend out, and their front ends extend into the annular snap-fit ​​grooves of the corresponding quick-release shafts, thereby quickly fixing the right front folding knife quick-release base 33-12-3 onto the right front quick-release base 33-12-2a.

[0138] The right front upper folding blade 33-12-4 and the right front lower folding blade 33-12-5 are fixedly mounted on the lower side of the right front folding blade quick-release base 33-12-3 from bottom to top. The right front upper folding blade 33-12-4 is on the same horizontal plane as the front folding blade 33-91 and the right folding blade 33-93, and the shapes of its left and right sides correspond to the corresponding parts of the front folding blade 33-91 and the right folding blade 33-93.

[0139] The folding machine drive device 34 includes a front and rear drive cylinder 34-1, a front and rear guide assembly 34-2, a top and bottom drive cylinder 34-3, a top and bottom guide assembly 34-4, a buffer assembly 34-5, and a connecting seat 34-6. The front and rear drive cylinder 34-1 is an Airtac MI32×200 stainless steel mini cylinder. The front and rear drive cylinder 34-1 is fixedly mounted on the upper center of the mounting seat 31 along the front-to-back direction, with its piston rod extending forward.

[0140] There are four sets of front and rear guide assemblies 34-2 for the hemming device. These four sets are respectively located on the upper left and right sides and the lower left and right sides of the front and rear drive cylinders 34-1 of the hemming device. The four sets of front and rear guide assemblies 34-2 have identical structures, each including two linear bearings 34-2-1 and a cylindrical shaft 34-2-2. The two linear bearings 34-2-1 are slidably mounted on the cylindrical shaft 34-2-2. The two linear bearings 34-2-1 are sequentially fixed to the mounting base 31 along the front-rear direction. The rear ends of the cylindrical shafts 34-2-2 of the four sets of front and rear guide assemblies 34-2 are fixedly connected via corresponding connecting seats.

[0141] The bending machine's up-and-down drive cylinder 34-3 uses an Airtac SE50×120 cylinder. The bending machine's up-and-down drive cylinder 34-3 is fixedly mounted on the upper part of the bending machine connecting seat 34-6 by its cylinder body, with its piston rod extending downwards. The bending machine connecting seat 34-6 is fixedly connected to the front end of the piston rod of the bending machine's front-and-back drive cylinder 34-1 via a corresponding floating joint, and is also fixedly connected to the front end of the bending machine's cylindrical shaft 34-2-2 of the four sets of bending machine front-and-back guide assemblies 34-2. The bending machine's up-and-down guide assembly 34-4 includes two linear guide rails, which are fixedly mounted vertically on the left and right sides of the front of the bending machine connecting seat 34-6.

[0142] The rear part of the folding base 33-1 is fixedly connected to the sliders of the two linear guide rails of the folding upper and lower guide assembly 34-4. The upper part of the folding base 33-1 is fixedly connected to the piston rod of the folding upper and lower drive cylinder 34-3, so that the folding base 33-1 is driven by the folding upper and lower drive cylinder 34-3 to move up and down along the folding upper and lower guide assembly 34-4.

[0143] The folding machine buffer assembly 34-5 includes two front and rear hydraulic buffers 34-5a and two upper and lower hydraulic buffers 34-5b. All two front and rear hydraulic buffers 34-5a and two upper and lower hydraulic buffers 34-5b are Airtac AC1410 hydraulic buffers.

[0144] One front and rear hydraulic damper 34-5a is fixedly mounted forward on the upper front part of the mounting base 31, located behind the bending machine connecting seat 34-6. When the bending machine connecting seat 34-6 moves backward, it cushions the movement by pressing against the bending machine connecting seat 34-6 from behind, ensuring a smooth stop. Another front and rear hydraulic damper 34-5a is fixedly mounted forward on the connecting seat at the rear end of the bending machine cylindrical shaft 34-2-2, which connects to the four sets of front and rear guide assemblies 34-2. When the bending machine connecting seat 34-6 moves forward, it presses against the corresponding part of the front mounting base 31, ensuring a smooth stop.

[0145] Two hydraulic dampers 34-5b are fixedly installed on the upper part of the bending machine connecting seat 34-6, located on the left and right sides of the bending machine upper and lower drive cylinder 34-3. They are used to push the bending machine base 33-1 downwards to buffer it when the bending machine base 33-1 moves upwards, so that the bending machine base 33-1 stops smoothly when it moves upwards.

[0146] The bag mold assembly 35 includes a bag mold mounting base 35-1, a bag mold 35-2, a shock-absorbing plate 35-3, a bag piece positioning assembly 35-4, a bag mold quick-release assembly 35-5, and a bag mold cushioning assembly 35-6. The bag mold 35-2 is hexagonal, corresponding to the shape of the sewn pocket. The bag mold 35-2 is detachably and fixedly connected to the bag mold mounting base 35-1 via the bag mold quick-release assembly 35-5. The shock-absorbing plate 35-3 is fixedly disposed on the lower rear part of the bag mold 35-2.

[0147] There are two sets of pocket piece positioning components 35-4, which are respectively located on the left and right sides of the upper center of the bag mold 35-2. The two sets of pocket piece positioning components 35-4 have the same structure, each including a pocket piece positioning seat 35-4-1 and a pocket piece clamping torsion spring 35-4-2. The pocket piece positioning seat 35-4-1 is fixedly mounted on the bag mold 35-2, and its front-to-back upward position is adjustable for positioning the corresponding pocket fabric piece in the front-to-back direction. The pocket piece clamping torsion spring 35-4-2 is elastically fixed to the pocket piece positioning seat 35-4-1 from its rear, and its front part presses downward against the bag mold 35-2 to clamp and fix the corresponding pocket fabric piece onto the bag mold 35-2. The front end of the bag clamping torsion spring 35-4-2 is tilted upwards to facilitate the bag fabric piece to slide into the bag clamping torsion spring 35-4-2 and down to the bag piece positioning seat 35-4-1.

[0148] The quick-release assembly 35-5 for bag molds includes two bag mold locking cylinders 35-5-1 and two bag mold quick-release shafts 35-5-2. Both bag mold locking cylinders 35-5-1 are SMC CQ2B12-5 thin-type cylinders. The two bag mold locking cylinders 35-5-1 are fixedly mounted on the upper left and right sides of the bag mold mounting base 35-1, with their piston rods extending downwards into the bag mold mounting base 35-1. The end of the piston rod of the bag mold locking cylinder 35-5-1 is frustoconical. The bag mold mounting base 35-1 has insertion holes on its left and right sides along the front-back direction. The positions of these insertion holes correspond to the positions of the piston rods of the two bag mold locking cylinders 35-5-1, allowing the piston rods of the two bag mold locking cylinders 35-5-1 to extend downwards into the insertion holes.

[0149] Two quick-release shafts 35-5-2 for bag molds are fixedly mounted on the left and right rear ends of the bag mold 35-2 via corresponding mounting bases. The quick-release shafts 35-5-2 are arranged in the front-to-back direction and extend rearward. The rear end of the quick-release shaft 35-5-2 is provided with an annular snap-fit ​​groove or a frustum-shaped insertion hole with a cross-section of an isosceles trapezoid, corresponding to the end shape of the piston rod of the bag mold locking cylinder 35-5-1, along the circumferential direction. In this embodiment, the annular snap-fit ​​groove is 35-5-2a.

[0150] When installing the bag mold 35-2, insert the two quick-install shafts 35-5-2 of the quick-install assembly 35-5 into the insertion holes on the left and right sides of the bag mold mounting base 35-1, respectively. The piston rods of the two bag mold locking cylinders 35-5-1 extend downward into the annular snap groove 35-5-2a of the quick-install shaft 35-5-2, thereby fixing the bag mold 35-2 on the bag mold mounting base 35-1.

[0151] The bag mold driving device 36 includes a bag mold front and rear drive cylinder 36-1 and a bag mold front and rear guide assembly 36-2. The bag mold front and rear drive cylinder 36-1 is an Airtac MI25×300 stainless steel mini cylinder. The bag mold front and rear drive cylinder 36-1 is fixedly mounted on the lower part of the mounting base 31 along the front-rear direction by its cylinder body, and its piston rod extends forward. There are two sets of bag mold front and rear guide assemblies 36-2, which are respectively located on the left and right sides of the bag mold front and rear drive cylinder 36-1. The two sets of bag mold front and rear guide assemblies 36-2 have the same structure, each including two bag mold linear bearings and a bag mold cylindrical shaft 36-2-2. The two bag mold linear bearings are slidably mounted on the bag mold cylindrical shaft 36-2-2. The two bag mold linear bearings are sequentially fixed on the lower part of the mounting base 31 along the front-rear direction. The rear end of the bag mold cylindrical shaft 36-2-2 of the two sets of bag mold front and rear guide assemblies 36-2 is fixedly connected through a corresponding connecting seat. The bag mold mounting seat 35-1 is fixedly connected to the front end of the piston rod of the bag mold front and rear drive cylinder 36-1 through a corresponding floating joint, and is also fixedly connected to the front end of the bag mold cylindrical shaft 36-2-2 of the two sets of bag mold front and rear guide assemblies 36-2.

[0152] The bag mold buffer assembly 35-6 includes four bag mold hydraulic buffers, all of which are Airtac AC0806-N hydraulic buffers. Two bag mold hydraulic buffers are fixedly mounted on the lower front left and right sides of the mounting base 31, facing forward, located behind the bag mold mounting base 35-1. They are used to cushion the bag mold mounting base 35-1 from back to front when it moves backward, allowing it to stop smoothly. The other two bag mold hydraulic buffers are fixedly mounted on the connecting seats at the rear end of the bag mold cylindrical shaft 36-2-2, which connects the two sets of bag mold front and rear guide assemblies 36-2. They are used to press against the corresponding parts of the front mounting base 31 when the bag mold mounting base 35-1 moves forward, allowing it to stop smoothly when it moves forward.

[0153] See Figure 2 , Figures 4 to 10 , Figure 30 and Figure 38The auxiliary positioning and adjustment device 4 includes a suction box 4-1, an electromagnet 4-2, a first auxiliary push rod 4-3, a first auxiliary push rod drive device 4-4, a second auxiliary push rod 4-5, a second auxiliary push rod drive device 4-6, and a suction fan. There are two suction boxes 4-1, designated as a front suction box 4-1a and a rear suction box 4-1b based on their front and rear positions. The front suction box 4-1a is a shell-shaped structure with its opening facing upwards. It is sealed and connected from bottom to top to the lower side of the workbench 1-2, covering a set of suction holes 1-2c located in front of the first push rod hole 1-2a on the workbench 1-2. The front suction box 4-1a has an air outlet 4-1a-1, which is sealed and connected to the air inlet of the suction fan via a corresponding pipe. The suction fan is mounted on the lower part of the frame 1-1. The rear suction box 4-1b is a shell-shaped structure with its opening facing upwards. It is sealed and connected from bottom to top to the lower side of the workbench 1-2, covering a set of suction holes 1-2c located on the left and right sides of the first top rod hole 1-2a on the workbench 1-2. The rear suction box 4-1b has an air outlet 4-1b-1, which is sealed and connected to the air inlet of the suction fan via a corresponding pipe. When the suction fan is started, the suction box 4-1 creates a negative pressure to suction and position the large fabric piece on the workbench 1-2. In summary, the suction holes 1-2c on the workbench 1-2 and the suction box 4-1 can be collectively referred to as the suction device. The suction device forms a suction area on the workbench 1-2. The suction area is distributed on the left and right sides of the second auxiliary top rod 4-5. The suction area is formed by the suction holes 1-2a of the workbench 1-2 and the suction box 4-1. In this scheme, the suction area is distributed on the left and right sides of the second auxiliary top rod 4-5 to express that the suction area supports the main body fabric. The left and right sides are not necessarily on the same straight line, but rather to express that the suction area is distributed on the left and right sides of the second auxiliary top rod 4-5 in a horizontal position. In this example, the first top rod hole 1-2a and the second top rod hole 1-2b are distributed along the front and back. The suction hole 1-2c is set on the left and right sides of the first top rod hole 1-2a. Therefore, in the horizontal distribution, the suction hole 1-2c is equivalent to being distributed on the left and right sides of the second top rod hole 1-2b.

[0154] Electromagnet 4-2 is fixedly mounted on the lower side of the workbench 1-2, located within the rear suction box 4-1b. Electromagnet 4-2 has a through-hole 4-2a in its center, which is coaxial with the first push-rod hole 1-2a of the workbench 1-2. The first auxiliary push-rod drive device 4-4 is cylinder-driven; in this embodiment, it uses an SMC CM2 series mini cylinder. The first auxiliary push-rod drive device 4-4 is fixedly mounted on the lower side of the rear suction box 4-1b by its cylinder body, and its piston rod extends upward into the rear suction box 4-1b. The piston rod and the rear suction box 4-1b are slidably connected by a corresponding sealing ring. The first auxiliary push rod 4-3 is coaxially fixed on the upper end of the piston rod of the cylinder of the first auxiliary push rod driving device 4-4. The first auxiliary push rod 4-3 is located in the electromagnet push rod hole 4-2a of the electromagnet 4-2 and can extend upward beyond the first push rod hole 1-2a of the worktable 1-2. The second auxiliary push rod driving device 4-6 adopts a cylinder driving method. In this embodiment, the second auxiliary push rod driving device 4-6 adopts an SMC MGPM12-25 cylinder with a guide rod. The cylinder body of the second auxiliary push rod driving device 4-6 is fixed on the lower side of the rear suction box 4-1b, and its piston rod extends upward. The second auxiliary push rod 4-5 is fixedly mounted on the piston rod of the cylinder of the second auxiliary push rod driving device 4-6 in the vertical direction. The second auxiliary push rod 4-5 is driven by the second auxiliary push rod driving device 4-6 to move up and down. The second auxiliary push rod 4-5 can extend upward beyond the second push rod hole 1-2b of the worktable 1-2.

[0155] See Figures 1 to 7 and Figures 32 to 34 The feeding device 5 includes a feeding connector 51, a feeding body presser foot 52, a body presser foot drive device 53, a feeding bag presser foot 54, and a bag presser foot drive device 55.

[0156] The feeding connector 51 is fixedly mounted at its rear on the feeding device mounting base 6b-14 of the Y-axis drive assembly 6b. The front of the feeding connector 51 is suspended above the rear of the worktable 1-2. The feeding presser foot 52 is U-shaped with its opening facing backward, and its inner shape corresponds to the shape of the pocket to be sewn. A quick-release shaft 52-1 is provided at each of the left and right ends of the rear of the feeding presser foot 52. The quick-release shaft 52-1 is horizontally fixed at the rear of the feeding presser foot 52 and extends backward beyond the feeding presser foot 52. The rear end of the quick-release shaft 52-1 has an annular snap-fit ​​groove or a frustum-shaped insertion hole with an isosceles trapezoidal cross-section along its circumference; in this embodiment, it is an annular snap-fit ​​groove 52-1a. A sponge-made pressure pad is bonded and fixed to the lower side of the feed body presser foot 52, which provides a tighter contact and better pressing effect when pressing the fabric. The presser foot drive device 53 includes a left-side presser foot drive cylinder 53-1, a left-side presser foot mounting base 53-2, a left-side presser foot linear guide rail 53-3, a left-side presser foot locking cylinder 53-4, a right-side presser foot drive cylinder 53-5, a right-side presser foot mounting base 53-6, a right-side presser foot linear guide rail 53-7, and a right-side presser foot locking cylinder 53-8. The left-side presser foot drive cylinder 53-1 is an SMC CDUJS16-25D free-mounting cylinder, whose cylinder body is fixedly mounted on the front left side of the feed connecting seat 51, and its piston rod extends downward. The left linear guide rail 53-3 of the main body presser foot is fixedly mounted on the front left side of the feeding connector 51, located to the right of the left-side drive cylinder 53-1. The left-side mounting seat 53-2 of the main body presser foot is fixedly mounted on the slider of the left linear guide rail 53-3 and is fixedly connected to the piston rod of the left-side drive cylinder 53-1, so that the left-side drive cylinder 53-1 drives the left-side mounting seat 53-2 to move up and down along the left-side linear guide rail 53-3. The left-side mounting seat 53-2 of the main body presser foot has a through-hole 53-2a, and also has a piston rod hole with an upward opening that communicates with the through-hole 53-2a. The left-side locking cylinder 53-4 of the main body presser foot is an SMC CQ2B12-5 thin cylinder. The piston rod of the left-side locking cylinder 53-4 of the main body presser foot has a frustum-shaped end, which mates with the annular retaining groove 52-1a of the quick-release shaft 52-1 of the main body presser foot. The left-side locking cylinder 53-4 is fixedly mounted on the left-side mounting seat 53-2 of the main body presser foot by its cylinder body, and its piston rod extends downward and is located in the piston rod hole of the left-side mounting seat 53-2 of the main body presser foot. The right-side drive cylinder 53-5 of the main body is an SMC CDUJS16-25D free-mounting cylinder, which is fixedly mounted on the front right side of the feeding connection seat 51 by its cylinder body, and its piston rod extends downward.The right linear guide rail 53-7 of the main body presser foot is fixedly mounted on the front right side of the feeding connector 51, located to the left of the right-side drive cylinder 53-5. The right-side mounting seat 53-6 of the main body presser foot is fixedly mounted on the slider of the right linear guide rail 53-7 and is fixedly connected to the piston rod of the right-side drive cylinder 53-5, thus allowing the right-side mounting seat 53-6 to move up and down along the right linear guide rail 53-7. The right-side mounting seat 53-6 has a through-hole 53-6a and a piston rod hole with an upward opening that communicates with the through-hole 53-6a. The right-side locking cylinder 53-8 of the main body presser foot is an SMC CQ2B12-5 thin-film cylinder. The piston rod of the right-side locking cylinder 53-8 of the main body presser foot has a frustum-shaped end, which mates with the annular snap-fit ​​groove 52-1a of the quick-release shaft 52-1 of the main body presser foot. The right-side locking cylinder 53-8 of the main body presser foot is fixedly mounted on the right-side mounting base 53-6 of the main body presser foot by its cylinder body, and its piston rod extends downward and is located in the piston rod hole of the right-side mounting base 53-6 of the main body presser foot.

[0157] When installing the feeding body presser foot 52, insert the two quick-release shafts 52-1 on the left and right sides of the rear of the feeding body presser foot 52 into the insertion holes 53-2a of the left mounting base 53-2 and 53-6a of the right mounting base 53-6, respectively; then, the piston rod of the left locking cylinder 53-4 of the body presser foot extends downward into the locking groove 52-1a of the corresponding quick-release shaft 52-1 on the left side, thus fixing the quick-release shaft 52-1 in place. The piston rod of the locking cylinder 53-8 on the right side of the main body presser foot extends downward into the snap-fit ​​groove 52-1a of the corresponding quick-release shaft 52-1 of the main body presser foot on the right side, and the quick-release shaft 52-1 of the main body presser foot is fixedly connected to the right side mounting seat 53-6 of the main body presser foot, so that the feeding main body presser foot 52 can be quickly disassembled and fixedly installed on the left side mounting seat 53-2 and the right side mounting seat 53-6 of the main body presser foot drive device 53.

[0158] The feeding bag presser foot 54 includes a guide seat plate 54-1, a bag presser foot adjusting cylinder 54-2, an adjusting push plate 54-3, a fixed presser plate 54-5, a front adjusting presser plate 54-6, a left adjusting presser plate 54-7, and a right adjusting presser plate 54-8.

[0159] The guide plate 54-1 has a pocket presser foot quick-release shaft 54-1-1 at each of its left and right rear ends. The pocket presser foot quick-release shaft 54-1-1 is horizontally fixed to the rear of the guide plate 54-1 in the front-back direction, extending rearward beyond the guide plate 54-1. The rear end of the pocket presser foot quick-release shaft 54-1-1 has an annular snap-fit ​​groove or a frustum-shaped insertion hole with an isosceles trapezoidal cross-section along its circumference; in this embodiment, it is an annular snap-fit ​​groove 54-1-1a. The guide plate 54-1 has a first guide hole 54-1a penetrating its upper and lower sections at the front of its middle section. The first guide hole 54-1a is an oblong hole arranged in the front-back direction. The left side of the guide plate 54-1 has two second guide holes 54-1b arranged sequentially from front to back. The second guide holes 54-1b are oblong holes, inclined from left to front and from right to back. The right side of the guide plate 54-4 has two third guide holes 54-1c arranged sequentially from front to back. Each third guide hole 54-1c is an oblong hole, tilted from right to front and from left to back. The third guide holes 54-1c and the second guide hole 54-1b are symmetrically arranged about the front-back axis of the first guide hole 54-1a. The pocket presser foot adjusting cylinder 54-2 is an SMC CDQSB20-20D thin-type cylinder. The pocket presser foot adjusting cylinder 54-2 is fixedly mounted on the middle of the pocket presser foot mounting base 55-1 by its cylinder body, and its piston rod extends forward.

[0160] The adjusting push plate 54-3 is detachably and fixedly connected to the front end of the piston rod of the pocket presser foot adjusting cylinder 54-2 via a corresponding connecting seat 54-3-1 and a pin 54-3-2 at its rear end. It is located on the upper side of the guide plate 54-1 and slides in contact with the guide plate 54-1. The left side of the adjusting push plate 54-3 has two left push plate guide holes 54-3a arranged sequentially from front to back. The left push plate guide holes 54-3a are waist-shaped holes, which are inclined from left to right and forward. They communicate with the two second guide holes 54-1b on the left side of the guide plate 54-1 in the vertical direction. The right side of the adjusting push plate 54-3 has two right-side push plate guide holes 54-3b arranged sequentially from front to back. These right-side push plate guide holes 54-3b are oblong holes, tilted from right to rear and from left to forward, and communicate vertically with the two third guide holes 54-1c on the right side of the guide seat plate 54-1. The front adjusting pressure plate 54-6 is fixedly connected to the front end of the adjusting push plate 54-3 by screws from bottom to top. A bushing is provided on the portion of the screw located in the first guide hole 54-1a of the guide seat plate 54-1. The bushing slides in contact with the inner wall of the first guide hole 54-1a. The front adjusting pressure plate 54-6 is located on the lower side of the guide seat plate 54-1 and slides in contact with it. The lower rear part of the front adjusting pressure plate 54-6 has a fixing plate front mounting notch 54-6a. Two guide posts are fixedly installed on the upper right side of the left adjusting pressure plate 54-7, and the upper part of the two guide posts has annular grooves. The two guide posts pass through the second guide hole 54-1b on the corresponding guide seat plate 54-1 and the left push plate guide hole 54-3a on the adjusting push plate 54-3, respectively, from bottom to top. The upper grooves of the two guide posts are located on the upper side of the adjusting push plate 54-3, and corresponding retaining springs are provided in the grooves. Washers are also provided on the guide posts between the retaining springs and the upper side of the adjusting push plate 54-3, thereby sliding the left adjusting pressure plate 54-7 on the lower left side of the guide seat plate 54-1. The lower side of the left adjusting pressure plate 54-7 has a left mounting notch 54-7a with openings to the right and rear. Two guide posts are fixedly installed on the upper left side of the right adjusting pressure plate 54-8, and the upper part of the two guide posts has annular grooves. Two guide posts pass sequentially from bottom to top through the third guide hole 54-1c on the corresponding guide seat plate 54-1 and the right push plate guide hole 54-3b on the adjusting push plate 54-3. The upper slots of the two guide posts are located on the upper side of the adjusting push plate 54-3, and corresponding retaining springs are provided in the slots. Washers are also provided on the guide posts between the retaining springs and the upper side of the adjusting push plate 54-3, thereby sliding the right adjusting pressure plate 54-8 onto the lower right side of the guide seat plate 54-1. The lower side of the right adjusting pressure plate 54-8 has a right mounting notch 54-8a with openings to the left and rear.

[0161] The fixed pressure plate 54-5 is fixed to the guide seat plate 54-1 from bottom to top. The corresponding parts are located in the left mounting notch 54-7a of the fixed pressure plate under the left adjusting pressure plate 54-7, the right mounting notch 54-8a of the fixed pressure plate under the right adjusting pressure plate 54-8, and the front mounting notch 54-6a of the fixed pressure plate of the front adjusting pressure plate 54-6. The lower surface of the fixed pressure plate 54-5 is in the same plane as the lower surfaces of the left adjusting pressure plate 54-7, the right adjusting pressure plate 54-8, and the front adjusting pressure plate 54-6. In the initial state, the piston rod of the pocket presser foot adjusting cylinder 54-2 extends forward, and the left adjusting plate 54-7 expands outward, the right adjusting plate 54-8 expands outward, and the front adjusting plate 54-6 expands forward through the adjusting push plate 54-3. The outer shapes of the left adjusting plate 54-7, the right adjusting plate 54-8 and the front adjusting plate 54-6 correspond to the inner shape of the feeding body presser foot 52, and there are corresponding grooves between them.

[0162] The pocket presser foot drive device 55 includes a pocket presser foot mounting base 55-1, a pocket left drive cylinder 55-2, a pocket presser foot left linear guide rail 55-3, a pocket presser foot left locking cylinder 55-4, a pocket right drive cylinder 55-5, a pocket presser foot right linear guide rail 55-6, a pocket presser foot right locking cylinder 55-7, and a pocket presser foot limit cylinder 55-8.

[0163] The pocket presser foot mounting base 55-1 has a through-hole 55-1a on each of its left and right sides. The pocket presser foot mounting base 55-1 also has an upward-facing piston rod hole on each of its left and right sides, with each piston rod hole communicating with the corresponding through-hole 55-1a. The upper part of the pocket presser foot mounting base 55-1 has a rearward-extending adjusting plate 55-1-1.

[0164] The left-side drive cylinder 55-2 for the pocket uses an SMC CDUJS16-25D free-mounting cylinder. Its cylinder body is fixedly mounted on the front left side of the feed connector 51, located to the right of the left linear guide rail 53-3 on the main body presser foot, with its piston rod extending downwards. The left-side linear guide rail 55-3 for the pocket presser foot is fixedly mounted vertically on the front left side of the feed connector 51, located to the right of the left-side drive cylinder 55-2.

[0165] The left-side locking cylinder 55-4 of the pocket presser foot uses an SMC CQ2B12-5 thin-film cylinder. The end of the piston rod of the left-side locking cylinder 55-4 of the pocket presser foot is frustoconical, which mates with the annular snap-fit ​​groove 54-1-1a of the quick-release shaft 54-1-1 of the pocket presser foot. The left-side locking cylinder 55-4 of the pocket presser foot is fixedly mounted on the left side of the pocket presser foot mounting base 55-1 by its cylinder body, and its piston rod extends downward and enters the piston rod hole on the left side of the pocket presser foot mounting base 55-1.

[0166] The right-side drive cylinder 55-5 of the pocket uses an SMC CDUJS16-25D free-mounting cylinder, which is fixedly mounted on the front right side of the feed connector 51 by its cylinder body, located to the left of the right linear guide rail 53-7 of the main body presser foot, with its piston rod extending downward. The right-side linear guide rail 55-6 of the pocket presser foot is fixedly mounted on the front right side of the feed connector 51 by its guide rail along the vertical direction, located to the left of the right-side drive cylinder 55-5 of the pocket.

[0167] The right-side locking cylinder 55-7 of the pocket presser foot uses an SMC CQ2B12-5 thin-film cylinder. The end of the piston rod of the right-side locking cylinder 55-7 is frustoconical, which mates with the annular snap-fit ​​groove 54-1-1a of the quick-release shaft 54-1-1 of the pocket presser foot. The right-side locking cylinder 55-7 is fixedly mounted on the right side of the pocket presser foot mounting base 55-1 by its cylinder body, and its piston rod extends downward into the piston rod hole on the right side of the pocket presser foot mounting base 55-1.

[0168] The pocket presser foot mounting base 55-1 is fixedly mounted on the slider of the left linear guide rail 55-3 and the right linear guide rail 55-6 of the pocket presser foot. The left and right ends of the pocket presser foot mounting base 55-1 are fixedly connected to the piston rods of the left drive cylinder 55-2 and the right drive cylinder 55-5 of the pocket presser foot, respectively. Thus, the left drive cylinder 55-2 and the right drive cylinder 55-5 drive the pocket presser foot mounting base 55-1 to move up and down along the left linear guide rail 55-3 and the right linear guide rail 55-6 of the pocket presser foot.

[0169] The pocket presser foot limiting cylinder 55-8 is an SMC needle cylinder of model CJPB12-5S. The pocket presser foot limiting cylinder 55-8 is fixedly mounted on the front middle of the feed connection seat 51 by its cylinder body, and the piston rod extends upward to press against the lower side of the adjusting plate 55-1-1 of the pocket presser foot mounting seat 55-1 located above it.

[0170] When installing the feed bag presser foot 54, insert the two quick-release shafts 54-1-1 of the bag presser foot on the guide plate 54-1 into the two insertion holes 55-1a of the bag presser foot mounting base 55-1 of the bag presser foot drive device 55. The piston rods of the left locking cylinder 55-4 and the right locking cylinder 55-7 of the bag presser foot extend downwards into the corresponding snap-fit ​​grooves 54-1-1a of the quick-release shaft 54-1-1, thereby fixing the feed bag presser foot 54 on the bag presser foot mounting base 55-1.

[0171] See Figures 6 to 10 and Figure 30The feeding sewing drive device 6 includes an X-axis drive device 6a and a Y-axis drive device 6b. The X-axis drive device 6a includes an X-axis drive motor 6a-1, an X-axis first synchronous pulley 6a-2, an X-axis second synchronous pulley 6a-3, an X-axis third synchronous pulley 6a-4, an X-axis fourth synchronous pulley 6a-5, an X-axis first transmission shaft 6a-6, an X-axis second mounting shaft 6a-7, an X-axis first synchronous belt 6a-8, an X-axis second synchronous belt 6a-9, an X-axis front linear guide rail 6a-10, an X-axis rear linear guide rail 6a-11, and an X-axis mounting base 6a-12.

[0172] See Figures 6 to 10 and Figure 30 The X-axis drive motor 6a-1 is a servo motor. The X-axis drive motor 6a-1 is fixedly mounted on the upper right side of the frame 1-1 via a corresponding motor mounting bracket, with its motor shaft extending forward. The first X-axis synchronous pulley 6a-2 is driven by the motor shaft of the X-axis drive motor 6a-1. The front and rear ends and the middle of the first X-axis drive shaft 6a-6 are rotatably mounted on the upper right side of the frame 1-1 via corresponding bearings and bearing seats, located to the left of the X-axis drive motor 6a-1. The second X-axis synchronous pulley 6a-3 is driven by the front part of the first X-axis drive shaft 6a-6. The third X-axis synchronous pulley 6a-4 is driven by the rear part of the first X-axis drive shaft 6a-6. The first X-axis synchronous belt 6a-8 is arranged around the first X-axis synchronous pulley 6a-2 and the second X-axis synchronous pulley 6a-3. The second X-axis mounting shaft 6a-7 is rotatably mounted on the upper left side of the frame 1-1 via corresponding bearings and bearing seats. The X-axis fourth synchronous pulley 6a-5 is driven by the X-axis second mounting shaft 6a-7. The X-axis second synchronous belt 6a-9 surrounds the X-axis third synchronous pulley 6a-4 and the X-axis fourth synchronous pulley 6a-5. The X-axis front linear guide 6a-10 is horizontally fixed to the upper middle part of the frame 1-1 along its guide rail in the left-right direction, and has two sliders on its guide rail. The X-axis rear linear guide 6a-11 is horizontally fixed to the upper rear part of the frame 1-1 along its guide rail in the left-right direction, corresponding to the X-axis front linear guide 6a-10 in the front-rear direction, and has two sliders on its guide rail. The rear part of the X-axis mounting base 6a-12 is fixedly connected to the two sliders on the X-axis rear linear guide 6a-11, and the front part of the X-axis mounting base 6a-12 is fixedly connected to the two sliders on the X-axis front linear guide 6a-10. The X-axis mounting base 6a-12 is fixedly connected to the X-axis second synchronous belt 6a-9 via a corresponding synchronous belt connecting block. Thus, the X-axis second synchronous belt 6a-9 drives the X-axis mounting base 6a-12 to move left and right along the X-axis front linear guide 6a-10 and the X-axis rear linear guide 6a-11.

[0173] See Figures 6 to 10 and Figure 30The Y-axis drive device 6b includes a Y-axis drive motor 6b-1, a Y-axis first synchronous belt pulley 6b-2, a Y-axis second synchronous belt pulley 6b-3, a Y-axis third synchronous belt pulley 6b-4, a Y-axis fourth synchronous belt pulley 6b-5, a Y-axis ball spline 6b-6, a Y-axis second mounting shaft 6b-7, a Y-axis first synchronous belt 6b-8, a Y-axis second synchronous belt 6b-9, a Y-axis left linear guide rail 6b-10, a Y-axis right linear guide rail 6b-11, a Y-axis front connecting seat 6b-12, a Y-axis rear connecting seat 6b-13, and a feeding device mounting seat 6b-14.

[0174] See Figures 6 to 10 and Figure 30The Y-axis drive motor 6b-1 is a servo motor. It is fixedly mounted on the upper right side of the frame 1-1 via a corresponding motor mounting bracket, located behind the X-axis drive motor 6a-1 of the X-axis drive device 6a, with its motor shaft extending to the left. The first synchronous pulley 6b-2 of the Y-axis is driven by the motor shaft of the Y-axis drive motor 6b-1. The Y-axis ball spline 6b-6 is an SLT cylindrical ball spline. The left and right ends of the spline shaft of the Y-axis ball spline 6b-6 are rotatably mounted on the upper rear part of the frame 1-1 via corresponding bearings and bearing seats. The second synchronous pulley 6b-3 of the Y-axis is driven by the right end of the spline shaft of the Y-axis ball spline 6b-6. The first synchronous belt 6b-8 of the Y-axis is arranged around the first synchronous pulley 6b-2 and the second synchronous pulley 6b-3. The rear Y-axis connecting seat 6b-13 is fixedly mounted on the rear of the X-axis mounting base 6a-12. The third synchronous pulley 6b-4 of the Y-axis is driven by the spline bearing sleeve of the Y-axis ball spline 6b-6, and is rotatably mounted on the rear connecting seat 6b-13 of the Y-axis via a corresponding deep groove ball bearing and bearing housing. The front connecting seat 6b-12 of the Y-axis is fixedly mounted on the front part of the X-axis mounting base 6a-12. The second mounting shaft 6b-7 of the Y-axis is rotatably mounted on the front connecting seat 6b-12 of the Y-axis via a corresponding deep groove ball bearing and bearing housing. The fourth synchronous pulley 6b-5 of the Y-axis is driven by the second mounting shaft 6b-7 of the Y-axis. The second synchronous belt 6b-9 of the Y-axis is arranged around the third synchronous pulley 6b-4 and the fourth synchronous pulley 6b-5 of the Y-axis. The left linear guide rail 6b-10 of the Y-axis is fixedly mounted on the upper left side of the X-axis mounting base 6a-12 along its front-to-back direction. The right Y-axis linear guide 6b-11 is fixedly mounted on the upper right side of the X-axis mounting base 6a-12 along its front-back direction. Two sliders are mounted on the left Y-axis linear guide 6b-10 and the right Y-axis linear guide 6b-11. The left and right sides of the feeding device mounting base 6b-14 are fixedly connected to the two sliders on the left Y-axis linear guide 6b-10 and the two sliders on the right Y-axis linear guide 6b-11, respectively. The second Y-axis synchronous belt 6b-9 is fixedly connected to the feeding device mounting base 6b-14 via corresponding synchronous belt clamps, thereby driving the feeding device mounting base 6b-14 to move back and forth along the left Y-axis linear guide 6b-10 and the right Y-axis linear guide 6b-11.

[0175] See Figures 1 to 6 The protective cover 1-6 is fixedly installed on the upper rear part of the frame 1-1, covering the X-axis drive device 6a and the Y-axis drive device 6b from the top, rear and left and right sides, which not only serves to prevent dust but also prevents accidental injury when someone gets close.

[0176] See Figures 1 to 10 and Figures 22 to 28The pad feeding device 7 includes a feeding tray assembly 71, a conveying assembly 72, a shearing assembly 73, a feeding assembly 74, and a connecting seat assembly 76.

[0177] See Figures 1 to 3 and Figure 27 The feeding tray assembly 71 includes a tray mounting rod 71-1 and a tray baffle 71-2. The tray mounting rod 71-1 is horizontally fixed on the frame 1-1 in a left-right direction, located on the lower left side of the worktable 1-2. There are four feeding baffles 71-2. Each of the four feeding baffles 71-2 is equipped with a locking handwheel 71-2a. The screw of the locking handwheel 71-2a is arranged radially along the tray mounting rod 71-1. Rotating the locking handwheel 71-2a causes the screw to press against the tray mounting rod 71-1, thereby fixing the feeding baffle 71-2 to the tray mounting rod 71-1. Two feeding baffles 71-2 form a group. The two feeding baffles 71-2 in the same group are symmetrically arranged on the tray mounting rod 71-1, with the locking handwheel 71-2a located on the outer side. The space between the two feeding baffles 71-2 is used to place the corresponding roll of padding tape.

[0178] The connecting seat assembly 76 includes a fixed seat plate 76-1, a guide assembly 76-2, a movable seat 76-3, and a knob plunger 76-4. The fixed seat plate 76-1 is fixedly mounted on the frame 1-1, located on the lower left side of the worktable 1-2. The guide assembly 76-2 uses a linear guide rail, which is horizontally arranged from left to right. Two sliders are provided on the linear guide rail, located on its lower side. The fixed seat plate 76-1 is fixedly mounted on the two sliders of the linear guide rail in the guide assembly 76-2. The movable seat 76-3 is fixedly mounted on the linear guide rail. Two locking holes are provided sequentially from left to right on the lower side of the linear guide rail. The knob plunger 76-4 is screwed onto the left side of the fixed seat plate 76-1 from bottom to top. The upper plunger of the knob plunger 76-4 passes upward through the fixed seat plate 76-1 and extends into the corresponding locking hole on the lower side of the linear guide rail. When the upper plunger of the knob plunger 76-4 is inserted into the locking hole on the left side of the linear guide rail, the movable seat 76-3 is located in the frame 1-1 and below the worktable 2. After removing the upper plunger of the knob plunger 76-4 from the locking hole on the left side of the linear guide rail, the movable seat 76-3 can be pulled out from right to left. Then, the upper plunger of the knob plunger 76-4 is inserted into the locking hole on the right side of the linear guide rail. At this time, the movable seat 76-3 is located on the left side of the frame 1-1, which is convenient for maintenance.

[0179] The conveying assembly 72 includes a drive motor 72-1, a drive roller 72-2, a driven roller 72-3, and a positioning and guiding assembly 72-4. The drive motor 72-1 is a servo motor. The drive motor 72-1 is fixedly mounted on the right side of the movable seat 76-3 of the connecting seat assembly 76 in the left-right direction, with its motor shaft extending to the left. The drive roller 72-2 is rotatably mounted on the movable seat 76-3 in the left-right direction, and its right end is connected to the motor shaft of the drive motor 72-1 via a coupling. The driven roller 72-3 is rotatably mounted on the movable seat 76-3 at both ends via corresponding bearings and bearing seats, located above the driving roller 72-2. Each bearing seat is slidably mounted on the movable seat 76-3 via guide posts 76-3-1 that are fixed sequentially along the front-back direction. Two adjusting screws 76-3-2 are screwed onto the corresponding bearing seat from top to bottom, passing through the bearing seat and pressing against the corresponding part of the movable seat 76-3. The two adjusting screws 76-3-2 are located on the front and rear sides of the bearing on the bearing seat, thereby adjusting the distance between the driven roller 72-3 and the driving roller 72-2 to accommodate padding belts of different thicknesses.

[0180] There are two sets of positioning guide components 72-4, which are divided into a left positioning guide component 72-4a and a right positioning guide component 72-4b according to their left and right positions. Both sets of positioning guide components 72-4 have the same structure, including an adjusting seat 72-4-1, an adjusting shaft 72-4-2, and two adjusting retaining rings 72-4-3. The adjusting seat 72-4-1 is slidably mounted on the upper part of the movable seat 76-3 in a left-right direction, facilitating adjustment of the position between the pads according to different pocket sizes. The adjusting shaft 72-4-2 is mounted on the adjusting seat 72-4-1 in a left-right direction, located behind the driving roller 72-2 and the driven roller 72-3. Both adjusting retaining rings 72-4-3 are made of rubber material and are sequentially fitted onto the adjusting shaft 72-4-2 from left to right. The distance between the two adjusting retaining rings 72-4-3 is adjusted according to the width of the pads.

[0181] There are two shearing components 73, which are divided into a left shearing component 73a and a right shearing component 73b according to their left and right positions. Both shearing components have the same structure, including a drive cylinder 73-1, a cutter holder 73-2, a moving cutter 73-3, a fixed cutter 73-4, and a clamping component 73-5. The drive cylinder 73-1 is an SMC CUJS20-15D free-mounting type cylinder. The drive cylinders 73-1 of the two shearing components 73 are respectively fixedly mounted on the corresponding adjusting seats 72-4-1 of the two positioning guide components 72-4 of the conveying component 72 by their respective cylinder bodies. The piston rod of the drive cylinder 73-1 extends downwards. The cutter holders 73-2 of the two shearing components 73 are fixedly mounted on the corresponding adjusting seats 72-4-1 of the two positioning guide components 72-4 of the conveying component 72. The lower part of the cutter holder 73-2 has a through-hole. The fixed cutter 73-4 is fixedly mounted on the lower front side of the cutter holder 73-2, below the conveyor belt hole. The blade of the fixed cutter 73-4 is horizontally positioned from left to right. The movable cutter 73-3 is slidably mounted on the cutter holder 73-2 and is connected to the piston rod of the drive cylinder 73-1. The drive cylinder 73-1 drives the movable cutter 73-3 to move up and down, forming a closed shearing mechanism with the fixed cutter 73-4. The blade of the movable cutter 73-3 is inclined from left to right. A vertical guide portion 73-3-1 is provided on the right side of the movable cutter 73-3. The guide portion 73-3-1 of the movable cutter 73-3 fits against the front side of the fixed cutter 73-4 from front to back. The clamping assembly 73-5 includes two clamping drive cylinders 73-51 and a pressure plate 73-52. Both clamping drive cylinders 73-51 are SMC CJ2B10-10Z pen-shaped cylinders. The two clamping drive cylinders 73-51 are fixedly mounted on the left and right sides of the front of the movable seat 76-3 by their respective cylinder bodies, with their piston rods extending downwards. The pressure plate 73-52 is horizontally fixed to the lower ends of the piston rods of the two clamping drive cylinders 73-51, thereby driving the pressure plate 73-52 to move up and down.

[0182] See Figures 22 to 26 , Figure 26-1 and Figure 28 The feeding assembly 74 includes a mounting frame 74-1, a feeding lifting drive device 74-2, a lifting guide assembly 74-3, a lifting seat 74-4, a feeding front and rear drive device 74-5, a front and rear guide assembly 74-6, and a suction box assembly 74-7. The lower part of the mounting frame 74-1 is fixedly mounted on the fixed seat plate 76-1, located in front of the fixed seat plate 76-1. The upper part of the mounting frame 74-1 is fixedly mounted on the lower side of the worktable plate 1-2, located in front of the padding feeding hole of the worktable plate 1-2.

[0183] The feeding lifting drive device 74-2 is cylinder-driven; in this embodiment, an SMC CM2BA20-180A cylinder is used. The cylinder body of the feeding lifting drive device 74-2 is fixedly mounted on the center of the mounting frame 74-1, with its piston rod extending upwards. The lifting guide assembly 74-3 includes two linear guide rails, each fixed vertically on the left and right sides of the mounting frame 74-1. The lifting seat 74-4 is fixedly mounted on the sliders of the two linear guide rails of the lifting guide assembly 74-3. The piston rod of the cylinder of the feeding lifting drive device 74-2 is fixedly connected to the lifting seat 74-4, thus driving the lifting seat 74-4 to move up and down along the two linear guide rails of the lifting guide assembly 74-3. The feeding front and rear drive device 74-5 includes two cylinders, both SMC CUJS12-15D free-mounting type cylinders. The two cylinders of the feeding front and rear drive device 74-5 are fixedly mounted on the upper side of the lifting seat 74-4 from left to right, with their piston rods extending rearward. The front and rear guide assembly 74-6 includes two linear guide rails, which are fixedly mounted on the upper left and right sides of the lifting seat 74-4 along their respective front-rear directions. The suction box assembly 74-7 includes a padding suction panel 74-71, a mounting box 74-72, and two adjustable suction boxes 74-73. The mounting box 74-72 is fixedly mounted on the sliders of the two linear guide rails of the front and rear guide assembly 74-6 along the left and right directions, and is fixedly connected to the piston rods of the two cylinders of the feeding front and rear drive device 74-5. The mounting box 74-72 has air pipe holes penetrating its interior and exterior on its left and right sides. The shape of the padding suction panel 74-71 corresponds to the shape of the padding feeding hole of the worktable 1-2. The padding suction panel 74-71 has several suction holes 74-71a. The padding suction panel 74-71 is fixedly mounted on the upper side of the mounting box 74-72. Two adjustable suction boxes 74-73 are slidably disposed within the mounting box 74-72; the distance between the two adjustable suction boxes 74-73 is adjustable to accommodate the spacing between padding linings in pockets of different sizes. The two adjustable suction boxes 74-73 are sealed from below to the lower side of the padding suction panel 74-71, thereby creating negative pressure at corresponding locations on the padding suction panel 74-71, adsorbing and fixing the padding lining located at those locations. The two adjustable suction boxes 74-73 are sealed and connected to the suction box via corresponding air tubes.

[0184] In the initial state of the pad feeding device 7, the piston rod of the cylinder of the feeding lifting drive device 74-2 of the feeding assembly 74 is in the upward extension state; the piston rod of the cylinder of the feeding front and rear drive device 74-5 is in the forward retraction state; the piston rod of the pressing drive cylinder 73-51 of the pressing assembly 73-5 is in the upward retraction state. At this time, the pad adsorption panel 74-71 of the suction box assembly 74-7 is located in the pad feeding hole of the worktable 1-2, and the upper surface of the pad adsorption panel 74-71 is flush with the upper surface of the worktable 1-2.

[0185] For high-end clothing, the requirements for sewn pockets are higher. It is necessary to add padding to the underside of the main fabric, with the padding added to the left and right ends of the back opening of the pocket. This will make the starting and ending stitches of the sewn pocket more secure.

[0186] The operating steps of this liner feeding device 7 are as follows:

[0187] First, place the two rolls of padding tape between the two corresponding material tray baffles 71-2. Then, pull out the end of the padding tape and pass it over the adjusting shaft of the positioning guide assembly before entering between the drive roller and the driven roller. The drive motor 72-1 drives the drive roller 72-2 to rotate, thereby conveying the padding tape forward under the combined action of the driven roller 72-3. After exiting from the drive roller 72-2 and the driven roller 72-3, the padding tape passes between the moving cutter 73-3 and the fixed cutter 73-4 of the shearing assembly and ends below the pressure plate 73-52 of the pressing assembly 73-5, at which point the conveying of the padding tape stops.

[0188] 2. The piston rod of the cylinder of the feeding lifting drive device 74-2 of the feeding assembly 74 retracts downward, causing the lifting seat 74-4 to descend, thereby causing the pad adsorption panel 74-71 to descend to a height of 0 to 5 mm below the blade edge of the fixed cutter 73-4 of the shearing assembly 73. In this embodiment, it is 1 mm.

[0189] 3. The piston rod of the cylinder of the feeding drive device 74-5 extends backward, so that the rear side of the padding adsorption panel 74-71 of the suction box assembly 74-7 rests against the front side of the guide part 73-3-1 of the moving cutter 73-3, and the corresponding part of the padding adsorption panel 74-71 of the suction box assembly 74-7 is located below the pressure plate 73-52 of the pressing assembly 73-5, and the padding strip is located between the padding adsorption panel 74-71 and the pressure plate 73-52; the piston rod of the pressing drive cylinder 73-51 of the pressing assembly 73-5 extends downward, driving the pressure plate 73-52 to press and fix the padding strip on the padding adsorption panel 74-71.

[0190] IV. The piston rod of the drive cylinder 73-1 of the shearing assembly 73 extends downward, driving the moving cutter 73-3 to move downward, thereby cutting the padding strip together with the fixed cutter 73-4. The two cut padding pieces are located on the padding adsorption panel 74-71.

[0191] 5. By using a suction fan to draw air in, a negative pressure is created at the corresponding part of the pad on the pad adsorption panel 74-71, adsorbing and fixing the pad onto the pad adsorption panel 74-71; then, the piston rod of the pressing drive cylinder 73-51 of the pressing assembly 73-5 retracts upward, raising the pressure plate 73-52. The moving cutter 73-3 of the shearing assembly 73 resets.

[0192] 6. The piston rod of the cylinder of the feeding front and rear drive device 74-5 retracts forward, and the piston rod of the cylinder of the feeding lifting drive device 74-2 extends upward, so that the pad adsorption panel 74-71 is located in the pad feeding hole of the worktable 1-2. The upper surface of the pad adsorption panel 74-71 is flush with the upper surface of the worktable 1-2, thereby feeding the two pads 100 to the height position of the upper surface of the worktable 1-2, completing the pad feeding.

[0193] 7. Drive motor 72-1 drives active roller 72-2 to rotate. After the padding belt comes out from active roller 72-2 and driven roller 72-3, it passes between the moving cutter 73-3 and fixed cutter 73-4 of the shearing assembly and goes under the pressure plate 73-52 of the pressing assembly 73-5. Then the conveying of the padding belt stops, preparing for the next feeding.

[0194] See Figures 1 to 10 and Figures 35 to 37 The receiving device 8 includes a receiving mounting frame 8-1, a feeding frame 8-2, a feeding rack 8-3, a feeding rack drive cylinder 8-4, a feeding rack drive cylinder 8-5, a clamping frame 8-6, and a clamping frame drive cylinder 8-7. The receiving mounting frame 8-1 is fixedly mounted on the front right side of the frame 1-1. The feeding rack 8-2 is horizontally slidably mounted on the receiving mounting frame 8-1 via two sets of corresponding receiving guide components. Each set of receiving guide components includes two linear bearings 8-2a, two linear bearing mounting seats 8-2b, and one linear bearing mounting shaft 8-2c. The two linear bearings 8-2a are respectively fixedly mounted in the corresponding two linear bearing mounting seats 8-2b. The two linear bearing mounting seats 8-2b are fixedly mounted on the feeding rack 8-2 sequentially from front to back, and the linear bearing mounting shaft 8-2c is slidably mounted in the two linear bearings 8-2a. The feeding rack drive cylinder 8-4 uses an SMC CM2B32-250 cylinder. The feeding rack drive cylinder 8-4 is fixedly mounted on the receiving mounting frame 8-1 along the front-to-back direction. The piston rod of the feeding rack drive cylinder 8-4 is fixedly connected to the feeding rack 8-2. Thus, the feeding rack 8-2 is driven to move back and forth by the feeding rack drive cylinder 8-4.

[0195] The material feeding frame 8-3 is rotatably mounted on the receiving mounting frame 8-1. The material feeding frame drive cylinder 8-5 is an SMC CM2E25-100 cylinder. The material feeding frame drive cylinder 8-5 is hinged and fixed to the receiving mounting frame 8-1 by its cylinder body, and the piston rod of the material feeding frame drive cylinder 8-5 is hinged and fixedly connected to the lower part of the material feeding frame 8-3. The material feeding frame drive cylinder 8-5 drives the material feeding frame 8-3 to rotate, thereby forming the corresponding material feeding action.

[0196] The clamping frame 8-6 is rotatably mounted on the receiving mounting frame 8-1. The clamping frame drive cylinder 8-7 is an SMC CM2E25-150 cylinder. The clamping frame drive cylinder 8-7 is hinged and fixed to the receiving mounting frame 8-1 by its cylinder body. The piston rod of the clamping frame drive cylinder 8-7 extends downward, and its lower end is hinged and fixedly connected to the lower part of the clamping frame 8-6. The clamping frame drive cylinder 8-7 drives the clamping frame 8-6 to rotate, thereby forming the corresponding clamping action.

[0197] When preparing for the material receiving operation, the piston rod of the feeding rack drive cylinder 8-4 is extended, leaving a distance in the front-to-back direction between the upper part of the feeding rack 8-2 and the upper front part of the frame 1-1. The piston rod of the material shifting rack drive cylinder 8-5 is extended, and the upper crossbar of the material shifting rack 8-3 is close to the frame 1-1, located below the worktable 1-2. The piston rod of the clamping rack drive cylinder 8-7 retracts, moving the upper crossbar of the clamping rack 8-6 away from the upper part of the feeding rack 8-2. After sewing is completed, the corresponding part of the main body fabric is located between the feeder 8-2 and the machine frame 1-1. The feeder 8-2 is driven by the feeder drive cylinder 8-4 to move backward, pressing and fixing the corresponding part of the main body fabric onto the machine frame 1-1 through its upper part. Then, the piston rod of the clamping frame drive cylinder 8-7 retracts, causing the upper crossbar of the clamping frame 8-6 to move forward and separate from the corresponding part of the upper part of the feeder 8-2. The piston rod of the pusher frame drive cylinder 8-5 retracts, and the upper crossbar of the pusher frame 8-4 moves forward, so that the upper part of the main body fabric passes over the upper part of the feeder 8-2 and drapes over the feeder 8-2, located between the feeder 8-2 and the clamping frame 8-6. Then, the piston rod of the clamping frame drive cylinder 8-7 extends, causing the upper crossbar of the clamping frame 8-6 to move backward and clamp and fix the main body fabric onto the upper part of the feeder 8-2.

[0198] See Figures 1 to 5 The material feeding assembly 9 includes a pocket fabric feeding box 9-1 and a body fabric draping rack 9-2. The pocket fabric feeding box 9-1 is fixedly installed on the upper left side of the frame 1-1 and is used to place the pocket fabric to be sewn. The body fabric draping rack 9-2 is fixedly installed on the upper front left side of the frame 1-1 and is used to drape the body fabric to be sewn.

[0199] When it is not necessary to add padding to the underside of the main body fabric, the fully automatic cold folding and bagging machine of the present invention operates with the following steps:

[0200] 1. The piston rod of the cylinder of the mounting base drive device 32 of the folding device 3 is in an upward extended state, causing the front part of the mounting base 31 of the folding device 3 to rise upward, thereby raising the front parts of the folder 33 and the bag mold assembly 35 upward, away from the worktable 1-2. The piston rod of the double cylinder 1-4a of the table drive assembly 1-4 is in an upward extended state, making the upper surface of the lifting table 1-3 flush with the upper surface of the worktable 1-2. The piston rod of the bag mold front and rear drive cylinder 36-1 of the bag mold drive device 36 is in a retracted state. The piston rod of the folder front and rear drive cylinder 34-1 of the folder drive device 34 is in a retracted state. The piston rod of the folder up and down drive cylinder 34-3 is in an upward retracted state.

[0201] First, the fabric for the main body of the pocket to be sewn is placed on the worktable 1-2. The auxiliary positioning and adjustment device 4 then uses suction to fix the fabric on the worktable 1-2. Next, the piston rod of the bag mold driving cylinder 36-1 of the bag mold driving device 36 extends forward, positioning the bag mold 35-2 above the main body fabric. Then, the pocket fabric is placed on the bag mold 35-2 and positioned and fixed by the bag piece positioning assembly 35-4.

[0202] 2. The piston rod of the folding head-to-tail drive cylinder 34-1 of the folding head drive device 34 extends forward, positioning the folding head 33 above the bag mold 35-2. The piston rod of the folding head up-down drive cylinder 34-3 extends downward, and the upper pressure plate 33-8 presses the pocket fabric from above. Simultaneously, the piston rod of the double cylinder 1-4a of the platform drive assembly 1-4 retracts downward, lowering the upper surface of the lifting platform 1-3 below the upper surface of the worktable 1-2, facilitating the smooth retraction of the bag mold 35-2. At this time, the piston rods of the cylinders of the front folding knife drive device 33-5, the left folding knife drive device 33-6, the right folding knife drive device 33-7, the left front folding knife drive device 33-11-1, and the right front folding knife drive device 33-12-1 are all in the extended state.

[0203] Each folding blade of the folding blade assembly 33-9 presses the pocket fabric outside the pocket mold 35-2 further downward until it is below the lower surface of the pocket mold 35-2. Then, the first auxiliary push rod drive device 4-4 of the auxiliary positioning adjustment device 4 drives the first auxiliary push rod 4-3 to extend upward beyond the worktable 1-2, pressing and fixing the main body fabric onto the pocket mold 35-2 from below. At the same time, the pocket mold 35-2 is pressed and fixed onto the upper pressure plate 33-8 of the hemming device 33, ensuring that the pocket fabric is clamped and fixed between the pocket mold 35-2 and the upper pressure plate 33-8, which helps to improve the quality of the hemming. The action of the second auxiliary push rod 4-5 is selected according to the needs of different fabrics. When the fabric shrinks significantly after washing, the piston rod of the cylinder of the second auxiliary push rod drive device 4-6 of the auxiliary positioning adjustment device 4 extends upward, driving the second auxiliary push rod 4-5 to extend upward beyond the worktable 1-2, lifting the middle part of the main body fabric upward from below, creating a small allowance in the middle.

[0204] Next, the piston rods of the left folding knife drive device 33-6 and the right front folding knife drive device 33-12-1 retract, thereby driving the front folding knife 33-91 and the left folding knife 33-92 of the folding knife assembly 33-9 to move inward, folding the corresponding portions of the left and right sides of the pocket fabric to the left and right sides of the lower side of the bag-shaped mold 35-2. The piston rod of the front folding knife drive device 33-5 retracts backward first, driving the front folding knife 33-91 to move backward, folding the corresponding portion of the front side of the pocket fabric to the lower side of the front of the bag-shaped mold 35-2. Then the piston rods of the left front folding knife drive device 33-11-1 and the right front folding knife drive device 33-12-1 of the left front folding assembly 33-11 and the right front folding assembly 33-12 retract, thereby driving the left front upper folding knife 33-11-4, the left front lower folding knife 33-11-5, the right front upper folding knife 33-12-4 and the right front lower folding knife 33-12-5 to move inward, folding the corresponding parts of the left front corner and right front corner of the pocket fabric to the upper part of the lower side of the pocket mold 35-2. After folding, the left corner folding knife drive device 33-10-1 and the right corner folding knife drive device 33-10-2 of the corner folding assembly 33-10 drive the corresponding left rear corner folding knife 33-10-4 and right rear corner folding knife 33-10-5 to rotate inward, folding the left and right rear corners of the pocket opening to the lower side of the bag mold 35-2.

[0205] 3. After all the edges are folded, the piston rod of the cylinder of the mounting base drive device 32 of the folding device 3 retracts downward, causing the front part of the mounting base 31 of the folding device 3 to drop, thereby causing the front parts of the folding device 33 and the bag mold assembly 35 to move downward and closer to the worktable 1-2. At this time, the bag mold 35-2 of the bag mold assembly 35 and the upper pressure plate 33-8 of the folding device 33 are in a horizontal state or a state with the front lower than the back. Simultaneously, the piston rod of the cylinder of the first auxiliary push rod drive device 4-4 of the auxiliary positioning adjustment device 4 retracts, causing the first auxiliary push rod 4-3 to move downward until its upper end face is level with or lower than the upper surface of the worktable 1-2; the piston rod of the cylinder of the second auxiliary push rod drive device 4-6 retracts, causing the second auxiliary push rod 4-5 to move downward until its upper end face is level with or lower than the upper surface of the worktable 1-2; at the same time, the electromagnet 4-2 starts to work, pulling the bag mold 35-2 downward, keeping the bag mold 35-2 stable, and also allowing the pocket fabric and the body fabric to fit better against the worktable 1-2.

[0206] Fourth, the left rear corner folding blade 33-10-4 and the right rear corner folding blade 33-10-5 of the folding device 33 are reset first, then the left front upper folding blade 33-11-4, the left front lower folding blade 33-11-5, the right front upper folding blade 33-12-4, and the right front lower folding blade 33-12-5 are reset, followed by the front folding blade 33-91, and finally the left folding blade 33-92 and the right folding blade 33-93. After all the folding blades are reset, the piston rod of the folding device drive unit 34's folding device up and down drive cylinder 34-3 retracts upward first, and then the piston rod of the folding device front and rear drive cylinder 34-1 retracts backward.

[0207] 5. The feeding sewing drive device 6 drives the feeding device 5 to the top of the bag mold 35-2. The body presser foot drive device 53 drives the feeding body presser foot 52 to press the body fabric tightly onto the worktable 1-2 from above. The piston rod of the pocket presser foot adjusting cylinder 54-2 of the feeding pocket presser foot 54 is in the forward extended state, and there are grooves for sewing between each presser plate of the feeding pocket presser foot 54 and the feeding body presser foot 52. The piston rods of the left pocket drive cylinder 55-2 and the right pocket drive cylinder 55-5 of the pocket presser foot drive device 55 extend downwards, causing the fixed pressure plate 54-5, the front adjusting pressure plate 54-6, the left adjusting pressure plate 54-7, and the right adjusting pressure plate 54-8 to press the pocket fabric onto the bag mold 35-2 from above. At this time, the piston rod of the pocket presser foot limiting cylinder 55-8 is in the upward extending state, pressing the adjusting plate 55-1-1 from below, limiting the fixed pressure plate 54-5, the front adjusting pressure plate 54-6, the left adjusting pressure plate 54-7, and the right adjusting pressure plate 54-8, preventing them from moving further downwards.

[0208] Next, the electromagnet 4-2 is de-energized, and the piston rod of the bag mold front and rear drive cylinder 36-1 of the bag mold drive device 36 retracts backward, pulling the bag mold 35-2 out of the pocket fabric and the body fabric. Then, the piston rod of the pocket presser foot limiting cylinder 55-8 retracts downward, causing the fixed pressure plate 54-5, the front adjusting pressure plate 54-6, the left adjusting pressure plate 54-7, and the right adjusting pressure plate 54-8 to continue moving downward from above, pressing the pocket fabric firmly onto the body fabric. Simultaneously, the piston rod of the double cylinder 1-4a of the platform drive assembly 1-4 extends upward, making the upper surface of the lifting platform 1-3 flush with the upper surface of the worktable 1-2.

[0209] VI. The feeding sewing drive device 6 drives the feeding device 5 to feed the pocket fabric and the body fabric to the sewing machine 2-1 of the sewing assembly 2 for sewing. When the pocket to be sewn requires double stitches, after the outer stitches are sewn, the piston rods of the left pocket drive cylinder 55-2 and the right pocket drive cylinder 55-5 of the pocket presser foot drive device 55 retract upwards, causing the fixed presser plate 54-5, the front adjusting presser plate 54-6, the left adjusting presser plate 54-7, and the right adjusting presser plate 54-8 to lift off the pocket fabric. Then, the piston rod of the pocket presser foot adjusting cylinder 54-2 of the feeding pocket presser foot 54 retracts backwards, and the front adjusting presser plate 54-6 is adjusted by the adjusting push plate 54-3. The left adjusting pressure plate 54-7 and the right adjusting pressure plate 54-8 move closer to the center. After they move closer, the piston rods of the left pocket drive cylinder 55-2 and the right pocket drive cylinder 55-5 of the pocket presser foot drive device 55 extend downwards, so that the fixed pressure plate 54-5, the front adjusting pressure plate 54-6, the left adjusting pressure plate 54-7 and the right adjusting pressure plate 54-8 press down on the pocket fabric from above again. At this time, the grooves between each pressure plate of the feed pocket presser foot 54 and the feed body presser foot 52 become larger, so that the second stitch located on the inside can be sewn.

[0210] VII. Before the material collection operation, the piston rod of the feeding frame drive cylinder 8-4 of the material collection device 8 is extended, leaving a distance between the upper part of the feeding frame 8-2 and the upper front part of the machine frame 1-1 in the front-back direction. The piston rod of the material shifting frame drive cylinder 8-5 is extended, and the upper crossbar of the material shifting frame 8-3 is close to the machine frame 1-1, located below the worktable 1-2. The piston rod of the clamping frame drive cylinder 8-7 is retracted, moving the upper crossbar of the clamping frame 8-6 away from the upper part of the feeding frame 8-2. After sewing is completed, the feeding sewing drive device 6 drives the feeding device 5 to move the sewn pocket body fabric from the sewing machine 2-1 of the sewing assembly 2 to the left, and the corresponding part of the body fabric is located between the feeding frame 8-2 of the material collection device 8 and the machine frame 1-1. Then, the feeding frame drive cylinder 8-4 drives the feeding frame 8-2 to move backward, pressing and fixing the corresponding part of the main body fabric onto the frame 1-1 through its upper part. Next, the feeding main body presser foot 52 and the feeding bag presser foot 54 of the feeding device 5 are lifted and reset. Then, the piston rod of the clamping frame drive cylinder 8-7 retracts, causing the upper crossbar of the clamping frame 8-6 to move forward and separate from the corresponding part of the upper part of the feeding frame 8-2. The piston rod of the material-pulling frame drive cylinder 8-5 retracts, and the upper crossbar of the material-pulling frame 8-4 moves forward, so that the upper part of the main body fabric passes over the upper part of the feeding frame 8-2 and rests on the feeding frame 8-2, located between the feeding frame 8-2 and the clamping frame 8-6. Then, the piston rod of the clamping frame drive cylinder 8-7 extends, causing the upper crossbar of the clamping frame 8-6 to move backward and clamp and fix the main body fabric onto the upper part of the feeding frame 8-2, completing the material collection.

[0211] When the requirements for the sewn pocket are high, and padding needs to be added to the underside of the body fabric, after the first step mentioned above, the body fabric is attracted and fixed by the auxiliary positioning and adjusting device 4. Then, the padding suction panel 74-71 of the padding feeding device 7 descends to pick up the material, and sends the two cut padding pieces to the height position of the upper surface of the worktable 1-2, with the padding pieces located under the body fabric. The feeding sewing drive device 6 drives the feeding device 5 to send the pocket fabric, body fabric, and two padding pieces to the sewing machine 2-1 of the sewing assembly 2 for sewing.

[0212] The rest of this embodiment is the same as that of Embodiment 1, except that: the two quick-release shafts on the front quick-release seat 33-41 of the folding device 3 are fixedly mounted vertically on the upper side of the front quick-release seat 33-41. The two quick-release shafts on the front quick-release seat 33-41 pass through the corresponding through holes on the front connecting plate 33-5-1 from bottom to top and are inserted into the vertical insertion holes 33-311 of the fourth quick-release locking cylinder 33-3-4 and the fifth quick-release locking cylinder 33-3-5. Then, the piston rods 33-32 of the fourth quick-release locking cylinder 33-3-4 and the fifth quick-release locking cylinder 33-3-5 extend into the annular snap-fit ​​grooves on the quick-release shafts, thereby quickly and securely connecting the front quick-release seat 33-41 to the lower side of the folding device base plate 3-2. The front folding knife 33-91 is fixedly mounted on the lower side of the front quick-release seat 33-41.

[0213] Two quick-release shafts on the left quick-release base 33-42 are fixedly mounted vertically on the upper side of the left quick-release base 33-42. These two quick-release shafts pass from bottom to top through the corresponding through holes on the left connecting plate 33-6-1 and are inserted into the vertical insertion holes 33-311 of the sixth quick-release locking cylinder 33-3-6 and the seventh quick-release locking cylinder 33-3-7. Then, the piston rods 33-32 of the sixth and seventh quick-release locking cylinders extend into the annular locking grooves on the quick-release shafts, thereby quickly and securely connecting the left quick-release base 33-42 to the lower side of the folding machine base plate 33-2. The left front folding knife 33-92 is fixedly mounted on the lower side of the left quick-release base 33-42.

[0214] Two quick-release shafts on the right quick-release base 33-43 are fixedly mounted vertically on the upper side of the right quick-release base 33-43. These two quick-release shafts pass from bottom to top through the corresponding through holes on the right connecting plate 33-7-1 and are inserted into the vertical insertion holes 33-311 of the eighth quick-release locking cylinder 33-3-8 and the ninth quick-release locking cylinder 33-3-9. Then, the piston rods 33-32 of the eighth and ninth quick-release locking cylinders extend into the annular snap-fit ​​grooves on the quick-release shafts, thereby quickly and securely connecting the right quick-release base 33-43 to the lower side of the folding machine base plate 33-2. The right front folding knife 33-93 is fixedly mounted on the lower side of the right quick-release base 33-43.

[0215] The folding tool of this embodiment is suitable for folding pockets that have the same shape as the pocket in Embodiment 1, but are smaller than the pocket in Embodiment 1.

[0216] See Figure 39 and Figure 40The rest of this embodiment is the same as that of Embodiment 1, except that: the upper pressure plate 33-8 of the hemming device 3 is a pentagon corresponding to the shape of the pocket to be sewn. The bag-shaped mold 35-2 is a pentagon corresponding to the shape of the pocket to be sewn. The feed presser foot 52 of the feeding device 5 is replaced with a pentagon whose inner shape corresponds to the shape of the pocket to be sewn, and the outer shapes of the left adjusting pressure plate 54-7, the right adjusting pressure plate 54-8, and the front adjusting pressure plate 54-6 correspond to the inner shape of the feed presser foot 52. The left front hemming assembly 33-11 does not have the left front folding knife quick-release seat 33-11-3, the left front upper folding knife 33-11-4, and the left front lower folding knife 33-11-5 installed on it. The right front folding edge assembly 33-12 does not have the right front folding knife quick-release mount 33-12-3, right front upper folding knife 33-12-4, and right front lower folding knife 33-12-5 installed.

[0217] Two quick-release shafts on the front quick-release seat 33-41 of the folding device 3 are fixedly mounted vertically on the upper side of the front quick-release seat 33-41. The two quick-release shafts on the front quick-release seat 33-41 pass through corresponding through holes on the front connecting plate 33-5-1 from bottom to top and are inserted into the vertical insertion holes 33-311 of the fourth quick-release locking cylinder 33-3-4 and the fifth quick-release locking cylinder 33-3-5. Then, the piston rods 33-32 of the fourth quick-release locking cylinder 33-3-4 and the fifth quick-release locking cylinder 33-3-5 extend into the annular snap-fit ​​grooves on the quick-release shafts, thereby quickly and securely connecting the front quick-release seat 33-41 to the lower side of the folding device base plate 3-2. The front folding knife 33-91 is fixedly mounted on the lower side of the front quick-release seat 33-41. The shape of the front folding knife 33-91 is a V-shape that corresponds to the shape of the corresponding position in the pocket.

[0218] Two quick-release shafts on the left quick-release base 33-42 are fixedly mounted vertically on the upper side of the left quick-release base 33-42. These two shafts pass from bottom to top through the corresponding through holes on the left connecting plate 33-6-1 and are inserted into the vertical insertion holes 33-311 of the sixth quick-release locking cylinder 33-3-6 and the seventh quick-release locking cylinder 33-3-7. Then, the piston rods 33-32 of the sixth and seventh quick-release locking cylinders extend into the annular locking grooves on the quick-release shafts, thereby quickly and securely connecting the left quick-release base 33-42 to the lower side of the folding device base plate 33-2. The left front folding knife 33-92 is fixedly mounted on the lower side of the left quick-release base 33-42. The left front folding knife 33-92 is angled to correspond to the slanted edge of the pocket at the corresponding position.

[0219] Two quick-release shafts on the right quick-release base 33-43 are fixedly mounted vertically on the upper side of the right quick-release base 33-43. These two shafts pass from bottom to top through the corresponding through holes on the right connecting plate 33-7-1 and are inserted into the vertical insertion holes 33-311 of the eighth quick-release locking cylinder 33-3-8 and the ninth quick-release locking cylinder 33-3-9. Then, the piston rods 33-32 of the eighth and ninth quick-release locking cylinders extend into the annular locking grooves on the quick-release shafts, thereby quickly and securely connecting the right quick-release base 33-43 to the lower side of the folding device base plate 33-2. The right front folding knife 33-93 is fixedly mounted on the lower side of the right quick-release base 33-43. The right front folding knife 33-93 is angled to correspond to the bevel of the corresponding position on the pocket.

[0220] The folding tool in this embodiment is suitable for pentagonal pockets.

[0221] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary positioning and adjustment device, disposed on a worktable (1-2), characterized in that: include A suction device is used to absorb the bulk fabric on the workbench (1-2); The second auxiliary push rod (4-5) and the second auxiliary push rod drive device (4-6) are used to lift the main body fabric upward so that the middle of the main body fabric has a margin. The suction device includes a plurality of suction holes (1-2c) provided on the workbench (1-2) and a suction box (4-1). The suction box (4-1) is provided on the workbench (1-2) to cover the suction holes (1-2c). The suction box (4-1) is connected to the suction fan to form a negative pressure to adsorb the bulk fabric on the workbench (1-2). The second auxiliary push rod drive device (4-6) is used to drive the second auxiliary push rod (4-5) to extend upwards out of the worktable plate (1-2) and lift the middle part of the main body fabric upwards from below; The worktable (1-2) is provided with a first push rod hole (1-2a) and a second push rod hole (1-2b). The second push rod hole (1-2b) allows the second auxiliary push rod (4-5) to push out to create clearance. It also includes an electromagnet (4-2), a first auxiliary push rod (4-3), and a first auxiliary push rod driving device (4-4); the electromagnet (4-2) is located on the lower side of the worktable (1-2), and the electromagnet (4-2) has an electromagnet push rod hole (4-2a) that runs through it from top to bottom. The electromagnet push rod hole (4-2a) is coaxial with the first push rod hole (1-2a) of the worktable (1-2). The first auxiliary push rod (4-3) is located in the electromagnet push rod hole (4-2a) of the electromagnet (4-2). The first auxiliary push rod driving device (4-4) drives the first auxiliary push rod (4-3) to extend upward out of the first push rod hole (1-2a) of the worktable to press and fix the main body fabric onto the bag mold (35-2) from below.

2. The auxiliary positioning adjustment device according to claim 1, characterized in that: The suction device forms a suction area on the workbench (1-2); the suction area is distributed on the left and right sides of the second auxiliary push rod (4-5).

3. The auxiliary positioning adjustment device according to claim 1, characterized in that: The suction box (4-1) is a shell-shaped structure with an opening facing upwards, and the suction box (4-1) is sealed and connected to the lower side of the workbench (1-2) from bottom to top.

4. The auxiliary positioning adjustment device according to claim 1, characterized in that: The electromagnet (4-2) is located inside the suction box (4-1).

5. The auxiliary positioning adjustment device according to claim 1, characterized in that: Both the first auxiliary push rod drive device (4-4) and the second auxiliary push rod drive device (4-6) are cylinders.

6. The auxiliary positioning adjustment device according to claim 1, characterized in that: There are two suction boxes (4-1), which are divided into a front suction box (4-1a) and a rear suction box (4-1b) according to their front and rear positions.

7. A fully automatic cold folding and bagging machine, characterized in that: It includes a frame (1-1), the frame (1-1) is provided with a worktable (1-2), and also includes the auxiliary positioning and adjustment device according to any one of claims 1-6.

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