Automatic trouser waist folding device

Abstract

The utility model provides an automatic trouser waist folding device which comprises an upper folding mechanism and a lower folding mechanism. The upper folding mechanism comprises an upper folding unit; the upper folding unit comprises a floating mounting plate capable of moving up and down, and an upper buckling edge push plate assembly, an upper straight edge push plate assembly, an upper cavity assembly, an upper fixed push plate assembly, an upper cavity cloth blocking assembly and an upper clamp assembly are mounted on the floating mounting plate; the lower folding mechanism comprises a lower folding unit, and the lower folding unit is arranged below the upper folding unit; the lower folding unit comprises a lower cavity plate, a lower side edge push plate assembly, a lower buckling edge push plate assembly, a lower straight edge push plate assembly and a lower cavity cloth blocking assembly. The device has the advantages that the upper clamp assembly is arranged, it is guaranteed that the position of the trouser front fly relative to the trouser waist is correct in the trouser waist folding process, and automatic folding and mutual buckling of the trouser waist can be achieved through different action sequences of all the assemblies. The jeans waist sewing machine effectively improves sewing efficiency of jeans waists and improves production capacity of factories.

Description

TECHNICAL FIELD

[0001] The utility model relates to cloth piece folding technical field especially relates to a waistband automatic folding device. BACKGROUND

[0002] In the sewing process of the waistband of jeans, the fly of the jeans needs to be placed between the two cloth pieces of the waistband, then the two cloth pieces of the waistband are folded and buckled to each other, and then sewed. At present, it is mostly completed by hand, wherein the folding and buckling process has a high requirement for the skill proficiency of workers, and a long time is needed, which seriously affects the production efficiency of the whole production line. How to save labor cost and improve production efficiency is a problem to be solved by the technical personnel in the field. SUMMARY

[0003] In view of the defects of the prior art, the utility model aims at providing a waistband automatic folding device which automatically completes the placement of the fly of the jeans and the folding and buckling process of the waistband.

[0004] The utility model provides a waistband automatic folding device for folding upper cloth piece and lower cloth piece of waistband, including upper folding mechanism and lower folding mechanism, the upper folding mechanism includes upper folding unit, the upper folding unit includes the floating mounting plate that can move up and down, install upper buckle edge push plate subassembly, upper straight edge push plate subassembly, upper cavity subassembly, upper fixed push plate subassembly, upper cavity cloth stop component and upper clamp assembly on the floating mounting plate, the upper cavity subassembly includes the upper cavity plate of installing under the floating mounting plate, the bottom of upper cavity plate is equipped with the upper cavity for accommodating the upper cloth piece, the upper cloth piece can detachable installation in the upper cavity, the upper cavity cloth stop component and upper buckle edge push plate subassembly are used for folding upper cloth piece and buckle edge, the upper straight edge push plate subassembly and upper fixed push plate subassembly are used for folding upper cloth piece and non buckle edge, the upper clamp assembly is used for placing the fly of the jeans between the upper cloth piece and lower cloth piece, the lower folding mechanism includes lower folding unit, the lower folding unit sets up under the upper folding unit, and it includes lower cavity plate, lower side edge push plate subassembly, lower buckle edge push plate subassembly, lower straight edge push plate subassembly and lower cavity cloth stop component, the top of lower cavity plate is equipped with the lower cavity for accommodating the lower cloth piece, the lower cavity and upper cavity are set up opposite up and down, and are connected with negative pressure mechanism, are used for the negative pressure adsorption fixed of lower cloth piece, the lower cavity cloth stop component and lower side edge push plate subassembly are used for folding lower cloth piece and first non buckle edge, the lower buckle edge push plate subassembly is used for folding lower cloth piece and buckle edge, the lower straight edge push plate subassembly is used for the location of lower cloth piece.

[0005] Preferably, the upper folding mechanism includes two upper folding units, the lower folding mechanism includes two lower folding units, the two upper folding units and two lower folding units are set up one by one.

[0006] Preferably, the upper mold cavity assembly is fixed by needle punching or negative pressure adsorption.

[0007] Preferably, the upper buckle edge push plate assembly comprises an upper buckle edge push plate driving source and an upper buckle edge lifting driving source connected with the floating mounting plate respectively, the upper buckle edge push plate driving source is connected with the upper buckle edge push plate, and the upper buckle edge lifting driving source is sequentially connected with an upper buckle edge guide driving source, an upper buckle edge tongue plate driving source and an upper buckle edge tongue plate.

[0008] Preferably, the upper straight edge push plate assembly, the upper fixed push plate assembly and the lower straight edge push plate assembly all comprise a push plate driving source, and the push plate driving source is connected with a push plate.

[0009] Preferably, the upper mold cavity cloth blocking assembly and the lower mold cavity cloth blocking assembly all comprise a cloth blocking block driving source and a cloth blocking block moving up and down under the driving of the cloth blocking block driving source, the cloth blocking block can pass through the upper mold cavity plate or the lower mold cavity plate and enter the upper mold cavity or the lower mold cavity.

[0010] Preferably, the upper clamp assembly comprises a clamp jaw, an upper clamp translation driving source for driving the clamp jaw to translate and an upper clamp lifting driving source for driving the clamp jaw to move up and down.

[0011] Preferably, the lower side edge push plate assembly comprises a lower side edge lifting driving source, a lower side edge tongue plate driving source and a lower side edge push plate driving source moving up and down synchronously under the driving of the lower side edge lifting driving source, the lower side edge tongue plate driving source is connected with a lower side edge tongue plate, and the lower side edge push plate driving source is connected with a lower side edge push plate.

[0012] Preferably, the lower buckle edge push plate assembly comprises a lower buckle edge lifting driving source, a lower buckle edge guide driving source, a buckle edge push plate driving source and a lower buckle edge push plate connected with the lower buckle edge lifting driving source in sequence.

[0013] Preferably, the utility model also comprises a waistband folding feeding mechanism, and the waistband folding feeding mechanism comprises an upper folding feeding unit, the upper folding feeding unit is arranged below the upper mold cavity assembly, the upper folding feeding unit comprises an avoiding driving assembly, an upper folding feeding driving source connected with the avoiding driving assembly and an upper folding feeding plate connected with the upper folding feeding driving source, the top of the upper folding feeding plate is provided with a plurality of feeding needles, the avoiding driving assembly is used for driving the upper folding feeding driving source and the upper folding feeding plate to be close to or away from the upper mold cavity assembly simultaneously, and the upper folding feeding driving source is used for driving the upper folding feeding plate to enter or exit the upper mold cavity.

[0014] The utility model discloses the following beneficial effects:

[0015] 1. The upper cavity adopts needle punching and / or negative pressure adsorption, and the lower cavity adopts negative pressure adsorption to fix the cloth piece, which solves the problem of unstable posture of the cloth piece during folding;

[0016] 2. The height of the upper buckle edge tongue plate and the lower buckle edge push plate is controlled by a lead screw motor, which is more convenient for debugging, and can ensure the stability of the cloth piece to the buckle edge during the mutual buckling process of the upper and lower cloth pieces, thereby improving the success rate of mutual buckling;

[0017] 3. An upper clamp assembly is arranged to ensure the accurate relative position of the pant waist to the pant door during folding;

[0018] 4. An upper folding feeding mechanism is arranged, and the feeding needle can ensure that the upper cloth piece does not deviate before entering the upper cavity, which greatly reduces the difficulty of feeding the upper cavity;

[0019] 5. The two waistbands on the trousers can be folded and buckled simultaneously, which greatly improves the production efficiency of the trousers. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of the first embodiment of the automatic waistband folding device;

[0021] Figure 2 is a perspective view of the upper folding mechanism;

[0022] Figure 3 is a perspective view of the upper folding unit;

[0023] Figure 4 is a schematic view of the relative positions of the upper buckle edge push plate assembly, the upper straight edge push plate assembly, the upper cavity assembly, the upper fixed push plate assembly, the upper cavity cloth blocking assembly and the upper clamp assembly;

[0024] Figure 5 is a perspective view of the upper buckle edge push plate assembly;

[0025] Figure 6 is a perspective view of the upper straight edge push plate assembly;

[0026] Figure 7 is a perspective view of the first embodiment of the upper cavity assembly;

[0027] Figure 8 is a perspective view of the second embodiment of the upper cavity assembly;

[0028] Figure 9 is a perspective view of the upper fixed push plate assembly;

[0029] Figure 10 is a perspective view of the upper cavity cloth blocking assembly;

[0030] Figure 11 is a perspective view of the upper clamp assembly;

[0031] Figure 12 This is a 3D view of the downward folding mechanism;

[0032] Figure 13 This is a schematic diagram showing the relative positions of the lower side push plate assembly, the lower snap-on push plate assembly, the lower straight push plate assembly, the lower cavity plate, and the lower cavity baffle assembly;

[0033] Figure 14 This is a 3D view of the lower side push plate assembly;

[0034] Figure 15 This is a 3D view of the lower edge push plate assembly;

[0035] Figure 16 This is a 3D view of the lower straight-edge push plate assembly;

[0036] Figure 17 This is a schematic diagram showing the relative positions of the upper left folding unit and the lower left folding unit;

[0037] Figure 18 It is a diagram showing the folded state of the upper and lower fabric pieces;

[0038] Figure 19 This is a diagram showing the pre-fastening status of the upper and lower fabric pieces;

[0039] Figure 20 It is a diagram showing the folded and interlocked state of the upper and lower fabric pieces;

[0040] Figure 21 This is a schematic diagram showing the relative positions of the upper folding feeding unit and the upper cavity assembly in Embodiment 2;

[0041] Figure 22 This is a 3D view of the upper folding feeding unit;

[0042] Figure 23 This is a perspective view of the automatic waistband folding device in Embodiment 2.

[0043] Component designation explanation:

[0044] 1. Upward folding mechanism

[0045] 11. Top left folding unit

[0046] 111 Second lifting drive source

[0047] 112 Lifting Floating Plate

[0048] 113 Third lifting drive source

[0049] 114 Floating Mounting Plate

[0050] 12 Top right folding unit

[0051] 2. Downward Folding Mechanism

[0052] 21. Lower left folding unit

[0053] 22. Lower right folding unit

[0054] 23. Under the table

[0055] 31 First lifting drive source

[0056] 32. Upper folding fixing plate

[0057] 33 Folding Lifting Platform

[0058] 41 Upper snap-on push plate assembly

[0059] 411 Upper snap-on tongue plate

[0060] 412 Upper edge push plate

[0061] 413 Upper Edge Push Plate Drive Source

[0062] 414 Upper latch tongue plate drive source

[0063] 415 Upper Edge Lifting Bracket

[0064] 416 Upper Edge Guide Drive Source

[0065] 417 Upper Edge Lifting Drive Source

[0066] 418 Upper edge fixing plate

[0067] 42 Upper straight edge push plate assembly

[0068] 421 Upper straight edge fixing plate

[0069] 422 Upper Straight Edge Push Plate Driver Source

[0070] 423 Upper straight edge connecting plate

[0071] 424 Upper straight edge push plate

[0072] 43 Upper cavity assembly

[0073] 431 Lifting Drive Source

[0074] 432 needle-punched block

[0075] 4321 Fixing pin

[0076] 433 Upper cavity plate

[0077] 4331 First slot

[0078] 4332 Through Hole

[0079] 434 Needle-piercing guide block

[0080] 435 Needle-punched block

[0081] 436 tension spring

[0082] 437 Needle-driven source

[0083] 438 Needle Puncture Frame

[0084] 44 Upper fixed push plate assembly

[0085] 441 Fixed push plate bracket

[0086] 442 Fixed push plate drive source

[0087] 443 Upper fixed push plate

[0088] 444 Upper fixed connection plate

[0089] 45 Upper cavity baffle assembly

[0090] 451 Upper Cloth Block Drive Source

[0091] 452 Upper cover cloth block

[0092] 453 Upper cover bracket

[0093] 46 Upper clamp assembly

[0094] 461 Upper clamp translation drive source

[0095] 462 Upper clamp lifting connecting plate

[0096] 463 clamping jaws

[0097] 464 Lower gripper

[0098] 465 Upper Gripper

[0099] 466 Upper Clamp Connector Plate

[0100] 467 Upper clamp lifting drive source

[0101] 468 Upper clamp fixing plate

[0102] 51 Lower cavity plate

[0103] 511 Second slot

[0104] 52 Lower side push plate assembly

[0105] 521 Lower side tongue plate drive source

[0106] 522 Lower Side Push Plate Drive Source

[0107] 523 Lower Side Push Plate Driver Source Mounting Plate

[0108] 524 Lower side lifting drive source

[0109] 525 Lower side push plate

[0110] 526 Lower side tongue plate

[0111] 53 Lower edge push plate assembly

[0112] 531 Lower Edge Push Plate Drive Source

[0113] 532 Lower Edge Lifting Bracket

[0114] 533 Lower Edge Lifting Drive Source

[0115] 534 Lower Edge Guide Drive Source

[0116] 535 Lower edge push plate

[0117] 536 Lower edge fixing bracket

[0118] 537 Lower Edge Slider

[0119] 54 Lower Straight Edge Push Plate Assembly

[0120] 541 Lower straight edge push plate

[0121] 542 Lower Straight Edge Push Plate Connecting Block

[0122] 543 Lower Straight Edge Guide Rail

[0123] 544 Lower Straight Edge Fixing Bracket

[0124] 545 Lower Straight Edge Push Plate Driver Source

[0125] 55 Lower cavity baffle assembly

[0126] 551 Lower baffle block drive source

[0127] 552 Lower baffle cloth

[0128] 553 Lower fabric support bracket

[0129] 6 pieces of cloth

[0130] 61. Button-up seams on the upper fabric piece.

[0131] 611 Top fabric piece with snap-on edge, non-snap-on side

[0132] 612 Upper fabric piece snap-on edges snap-on sides

[0133] 62. Top fabric piece with non-buttoned edges.

[0134] 7. Lower fabric piece

[0135] 71. First non-buttoned edge of the lower fabric piece.

[0136] 72. Button edge on the bottom fabric piece.

[0137] 73. Second non-buttoned edge of the lower fabric piece.

[0138] 8. Folding feeding unit

[0139] 81 Folding Feeding Bracket

[0140] 82 Folding Feeding Drive Source

[0141] 83 First Upward Folding Avoidance Drive Source

[0142] 84 Folding feeder connecting plate

[0143] 85 Second upper folding avoidance drive source

[0144] 86 Folding Feeding Base Plate

[0145] 87 Folding Feeding Rail

[0146] 88 Folding feeder plate

[0147] 89 Feed needle

[0148] 801 Upper Left Folding Feeding Unit

[0149] 802 Upper right folding feeding unit Detailed Implementation

[0150] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0151] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0152] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0153] Figure 1 The image shown is a perspective view of the automatic waistband folding device of Embodiment 1. In the following description, it will be referred to as... Figure 1 The attached diagram serves as a reference for orientation. The length direction of the lower platform 23 is defined as the left-right direction, with the upper left folding unit 11 located on the left and the upper right folding unit 12 located on the right. The width direction of the lower platform 23 is defined as the front-back direction, with the lower platform 23 located in front of the lower left folding unit 21. The thickness direction of the lower platform 23 is defined as the up-down direction, with the upper folding mechanism 1 located above the lower folding mechanism 2.

[0154] Example 1

[0155] Embodiment 1 provides an automatic waistband folding device for folding the upper and lower fabric pieces of the waistband. For example... Figure 1 As shown, the device includes an upper folding mechanism 1 and a lower folding mechanism 2.

[0156] like Figure 18 As shown, in the upper fabric piece 6 of the waistband, the two long straight edges on the left and right sides of the upper fabric piece 6 are both non-button-upper edges 62, and the short straight edge on the back side of the upper fabric piece 6 is the button-upper edge 61. One side of the button-upper edge 61 is the non-button-upper side 611, and the other side is the button-upper side 612. In the lower fabric piece 7 of the waistband, the short straight edge on the back side of the lower fabric piece 7 is the first non-button-upper edge 71; the long straight edge on one side of the left and right sides of the lower fabric piece 7 is the button-upper edge 72, and the long straight edge on the other side of the left and right sides of the lower fabric piece 7 is the second non-button-upper edge 73. The second non-button-upper edge 73 is located on the side of the lower fabric piece 7 closest to the non-button-upper side 611 of the upper fabric piece, and the button-upper edge 72 is located on the side of the lower fabric piece 7 closest to the button-upper side 612 of the upper fabric piece.

[0157] like Figures 1-3 As shown, the upper folding mechanism 1 includes an upper folding fixing plate 32, a first lifting drive source 31 mounted on the upper folding fixing plate 32, and an upper folding lifting plate 33 that is connected to the first lifting drive source 31 in a transmission manner. An upper folding unit is provided on the upper folding lifting plate 33, and the first lifting drive source 31 is used to drive the upper folding unit to move up and down as a whole.

[0158] likeFigures 3-11 As shown, the upper folding unit includes a second lifting drive source 111 and a floating mounting plate 114 that moves up and down under the drive of the second lifting drive source 111. An upper edge-fastening push plate assembly 41, an upper straight edge push plate assembly 42, an upper cavity assembly 43, an upper fixed push plate assembly 44, an upper cavity baffle assembly 45, and an upper edge-expanding assembly 46 are mounted on the floating mounting plate 114. The second lifting drive source 111 can drive the upper edge-fastening push plate assembly 41, the upper straight edge push plate assembly 42, the upper cavity assembly 43, the upper fixed push plate assembly 44, the upper cavity baffle assembly 45, and the upper edge-expanding assembly 46 to move up and down synchronously.

[0159] Preferably, the upper folding unit further includes a lifting floating plate 112 connected to the second lifting drive source 111, and a third lifting drive source 113 installed at the bottom of the floating mounting plate 114. The third lifting drive source 113 is connected to the lifting floating plate 112. When adjusting the height of the floating mounting plate 114, the second lifting drive source 111 drives the lifting floating plate 112 to move up and down, causing the third lifting drive source 113 and the floating mounting plate 114 to move up and down synchronously, thereby achieving a large-scale adjustment of the height of each component on the floating mounting plate 114. Then, the second lifting drive source 111 stops working, and the third lifting drive source 113 starts working. Since the height of the lifting floating plate 112 is fixed, the third lifting drive source 113 drives the floating mounting plate 114 to move up and down, thereby achieving a small-scale precise adjustment of the height of each component on the floating mounting plate 114.

[0160] The first lifting drive source 31 and the second lifting drive source 111 are both cylinders. The piston rod of the cylinder of the first lifting drive source 31 is connected to the upper folding lifting plate 33, and the piston rod of the cylinder of the second lifting drive source 111 is connected to the lifting floating plate 112. The third lifting drive source 113 is a lead screw motor, the motor part of which is installed at the bottom of the floating mounting plate 114. Its lead screw extends in the vertical direction and passes through the lifting floating plate 112, and its lead screw nut is connected to the lifting floating plate 112. Those skilled in the art can also replace the specific type of linear displacement equipment selected for the first lifting drive source 31, the second lifting drive source 111, and the third lifting drive source 113 as needed.

[0161] like Figure 7 and Figure 18 As shown, the upper cavity assembly 43 includes an upper cavity plate 433 installed below the floating mounting plate 114. The bottom of the upper cavity plate 433 is provided with an upper cavity for accommodating the upper fabric piece 6. The upper fabric piece 6 is detachably installed in the upper cavity.

[0162] Specifically, the upper cavity assembly 43 has the following two embodiments to achieve detachable installation between the upper fabric piece 6 and the upper cavity:

[0163] like Figure 7As shown, in Embodiment 1 of the upper cavity assembly 43, the upper cavity is connected to a negative pressure mechanism for negative pressure adsorption and fixation of the upper fabric piece 6. The negative pressure mechanism is specifically a vacuum machine.

[0164] like Figure 8 As shown, in embodiment 2, the upper cavity assembly 43 includes a needle-punching drive source 437 connected to the floating mounting plate 114 via a needle-punching frame 438, and a needle-punching block 432 that moves up and down under the drive of the needle-punching drive source 437. The needle-punching block 432 is located above the upper cavity plate 433, and its lower end is provided with several sets of fixing needles 4321. Each set of fixing needles 4321 passes through the upper cavity plate 433. When the needle-punching drive source 437 drives the needle-punching block 432 to move down, the fixing needles 4321 enter the upper cavity and needle-punch the upper fabric piece 6 to fix it, thus firmly installing the upper fabric piece 6 in the upper cavity.

[0165] In Embodiment 2 of the upper cavity assembly 43, two needle-punching guide blocks 434 are provided on the top of the upper cavity plate 433. Each needle-punching guide block 434 has an inclined surface, and the inclined surfaces of the two needle-punching guide blocks 434 are arranged opposite each other. A needle-punching block 432 is also slidably arranged on each inclined surface. The fixing needle 4321 at the lower end of each needle-punching block 432 has an included angle (preferably 40°) with the lower surface of the upper cavity plate 433 (i.e., the upper surface of the upper cavity). That is, each set of fixing needles 4321 is inclined to pierce the upper fabric piece 6, which can effectively prevent the upper fabric piece 6 from falling off the fixing needle 4321. A needle-punching pressure block 435 is connected to the needle-punching drive source 437, and the needle-punching pressure block 435 abuts against the two needle-punching blocks 432 respectively. At the same time, a tension spring 436 is also provided between the needle-punching frame 438 and the needle-punching pressure block 435. When the needle-punching drive source 437 is working, it can drive the needle-punching pressure block 435 to move downward against the elastic force of the tension spring 436. The needle-punching block 432 slides down the inclined plane under the force of the needle-punching pressure block 435, so that the fixing needle 4321 enters the upper cavity and completes the needle-punching and fixing of the upper fabric piece 6. The needle-punching drive source 437 is preferably a cylinder, and its cylinder piston rod is connected to the needle-punching pressure block 435.

[0166] Furthermore, the upper cavity assembly 43 also includes a lifting drive source 431 connected to the floating mounting plate 114. The upper cavity plate 433 has a through hole 4332 communicating with the upper cavity. The output end of the lifting drive source 431 can pass through the through hole 4332 to press down the upper fabric piece 6, causing the upper fabric piece 6 to press against the lower fabric piece 7. The lifting drive source 431 is preferably a cylinder, and its output end is a cylinder piston rod.

[0167] like Figures 4-5 , Figures 7-8 and Figure 18As shown, the upper edge pusher plate assembly 41 is located on the rear side of the upper cavity assembly 43. It includes an upper edge fixing plate 418 connected to the floating mounting plate 114. An upper edge pusher plate drive source 413 and an upper edge lifting drive source 417 are fixed on the upper edge fixing plate 418. The upper edge pusher plate drive source 413 is connected to the upper edge pusher plate 412. The upper edge pusher plate drive source 413 can drive the upper edge pusher plate 412 to translate upwards towards the cavity (i.e., translate in the front-to-back direction), so that the upper fabric piece folds inwards at the non-fastening side 611 of the fastening edge. An upper edge lifting bracket 415 is connected to the upper edge lifting drive source 417. An upper edge guide drive source 416, an upper edge tongue plate drive source 414, and an upper edge tongue plate 411 are sequentially connected to the upper edge lifting bracket 415. The upper edge lifting drive source 417 can drive the upper edge tongue plate 411 to rise and fall, while the upper edge guide drive source 416 and the upper edge tongue plate drive source 414 can drive the upper edge tongue plate 411 to move upward into the cavity, causing the upper fabric piece to fold inward at the edge-to-edge 612. Preferably, the upper edge lifting drive source 417 is a lead screw motor, the motor part of which is fixedly connected to the upper edge fixing plate 418, the lead screw of which extends in the vertical direction, and the lead screw nut of which is connected to the upper edge lifting bracket 415. The upper edge push plate drive source 413, the upper edge guide drive source 416, and the upper edge tongue plate drive source 414 are all cylinders. The cylinder piston rod of the upper edge push plate drive source 413 is connected to the upper edge push plate 412; the cylinder piston rod of the upper edge guide drive source 416 is connected to the upper edge tongue plate drive source 414; and the cylinder piston rod of the upper edge tongue plate drive source 414 is connected to the upper edge tongue plate 411.

[0168] like Figure 4 , Figures 6-9 and Figure 18 As shown, the upper straight-edge pusher assembly 42 and the upper fixed pusher assembly 44 are respectively disposed on the left and right sides of the upper cavity assembly 43. The upper straight-edge pusher assembly 42 includes an upper straight-edge pusher drive source 422 connected to the floating mounting plate 114 via an upper straight-edge fixed plate 421, and the upper straight-edge pusher drive source 422 is connected to the upper straight-edge pusher 424 via an upper straight-edge connecting plate 423. The upper fixed pusher assembly 44 includes an upper fixed pusher drive source 442 connected to the floating mounting plate 114 via an upper fixed pusher bracket 441, and the upper fixed pusher drive source 442 is connected to the upper fixed pusher 443 via an upper fixed connecting plate 444. The upper straight-edge push plate drive source 422 and the upper fixed push plate drive source 442 can respectively drive the upper straight-edge push plate 424 and the upper fixed push plate 443 to translate upwards towards the cavity (i.e., translate in the left-right direction), causing the two upper fabric pieces' non-interlocking edges 62 to fold inwards (here and in the following text, "folding inwards" refers to folding between the upper fabric piece 6 and the lower fabric piece 7). Preferably, both the upper straight-edge push plate drive source 422 and the upper fixed push plate drive source 442 are cylinders, and the piston rods of both cylinders are connected to the upper straight-edge connecting plate 423 and the upper fixed connecting plate 444, respectively.

[0169] like Figure 4 , Figures 7-8 , Figure 10 and Figure 18 As shown, the upper cavity baffle assembly 45 includes an upper baffle block drive source 451 connected to the floating mounting plate 114 via an upper baffle block bracket 453. The upper baffle block drive source 451 is connected to the upper baffle block 452 and is used to drive the upper baffle block 452 to move up and down. A first slot 4331 is also opened on the rear side of the upper cavity plate 433. The upper baffle block 452 can move downward under the drive of the upper baffle block drive source 451 and pass through the first slot 4331 to enter the upper cavity, causing the upper fabric piece to fold downward against the fastening edge 61. The upper baffle block drive source 451 is preferably a cylinder, and its cylinder piston rod is connected to the upper baffle block 452.

[0170] like Figure 4 , Figure 11 and Figure 18 As shown, the upper clamp assembly 46 is located near the upper buttoning push plate assembly 41 (close to the side where the upper buttoning push plate 412 is located), and is used to place the trouser placket between the upper fabric piece 6 and the lower fabric piece 7; it includes clamping jaws 463, an upper clamping translation drive source 461 for driving the clamping jaws 463 to translate in the front-back direction, and an upper clamping lifting drive source 467 for driving the upper clamping translation drive source 461 and the clamping jaws 463 to move up and down simultaneously. The upper clamp lifting drive source 467 is connected to the floating mounting plate 114 via the upper clamp fixing plate 468, and is also connected to the upper clamp translation drive source 461 via the upper clamp lifting connecting plate 462. The upper clamp translation drive source 461 is connected to the clamp jaws 463 via the upper clamp connecting plate 466. The clamp jaws 463 are respectively fixed with a lower jaw 464 and an upper jaw 465 located above the lower jaw 464. Specifically, existing industrial parallel electric grippers can be used. When the clamp jaws 463 open or close, the lower jaw 464 and the upper jaw 465 separate or approach each other to realize the placement or gripping of the trouser fly. Preferably, both the upper clamp lifting drive source 467 and the upper clamp translation drive source 461 are cylinders. The piston rod of the cylinder of the upper clamp lifting drive source 467 is connected to the upper clamp lifting connecting plate 462, and the piston rod of the cylinder of the upper clamp translation drive source 461 is connected to the clamp jaws 463 through the upper clamp connecting plate 466. When the piston rod of the cylinder of the upper clamp lifting drive source 467 extends, it drives the clamp jaws 463 to move downward; when the piston rod of the cylinder of the upper clamp translation drive source 461 extends, it drives the clamp jaws 463 to move forward, closer to the upper cavity assembly 43.

[0171] like Figure 12 As shown, the lower folding mechanism 2 includes a lower platform 23 and a lower folding unit mounted on the lower platform 23, with the lower folding unit located below the upper folding unit.

[0172] likeFigures 13-18 As shown, the lower folding unit includes a lower cavity plate 51, a lower side push plate assembly 52, a lower snap-on push plate assembly 53, a lower straight side push plate assembly 54, and a lower cavity baffle assembly 55. The lower cavity plate 51 has a lower cavity at its top for accommodating the lower fabric piece 7. The lower cavity is positioned vertically opposite to the upper cavity and is connected to a negative pressure mechanism for negative pressure adsorption and fixation of the lower fabric piece 7. Specifically, the negative pressure mechanism is a vacuum machine. The negative pressure mechanism connected to the upper cavity assembly 43 in Embodiment 1 and the negative pressure mechanism connected to the lower cavity can be the same negative pressure mechanism or two independent negative pressure mechanisms.

[0173] like Figures 13-14 As shown, the lower side push plate assembly 52 is located on the rear side of the lower cavity plate 51. It includes a lower side lifting drive source 524 connected to the lower platform 23, a lower side push plate drive source mounting plate 523 that moves up and down under the drive of the lower side lifting drive source 524, and a lower side tongue plate drive source 521 and a lower side push plate drive source 522 mounted on the lower side push plate drive source mounting plate 523. The lower side push plate drive source mounting plate 523 drives the lower side tongue plate drive source 521 and the lower side push plate drive source 522 to move up and down synchronously. The lower side tongue plate drive source 521 is connected to the lower side tongue plate 526, and the lower side push plate drive source 522 is connected to the lower side push plate 525. The lower side tongue plate 526 and the lower side push plate 525 are respectively driven to translate downwards into the cavity (i.e., translate in the front-back direction) to complete the inward folding of the first non-fastening edge 71 of the lower fabric piece. Preferably, the lower side lifting drive source 524, the lower side tongue plate drive source 521, and the lower side push plate drive source 522 are all cylinders, wherein the cylinder piston rod of the lower side lifting drive source 524 is connected to the lower side push plate drive source mounting plate 523, the cylinder piston rod of the lower side tongue plate drive source 521 is connected to the lower side tongue plate 526, and the cylinder piston rod of the lower side push plate drive source 522 is connected to the lower side push plate 525.

[0174] like Figure 13 , Figures 15-17 As shown, the lower edge push plate assembly 53 and the lower straight edge push plate assembly 54 are respectively disposed on the left and right sides of the lower cavity plate 51.

[0175] like Figure 15As shown, the lower edge push plate assembly 53 includes a lower edge lifting drive source 533 connected to the lower platform 23 via a lower edge fixing bracket 536. The lower edge lifting drive source 533 is connected to the lower edge lifting bracket 532 and is used to drive the lower edge lifting bracket 532 to move up and down. A lower edge guide drive source 534, a lower edge push plate drive source 531, and a lower edge push plate 535 are sequentially connected to the lower edge lifting bracket 532. Both the lower edge guide drive source 534 and the lower edge push plate drive source 531 can drive the lower edge push plate 535 to translate downwards towards the cavity (i.e., translate in the left and right direction), so that the lower fabric piece folds inwards towards the button edge 72. Preferably, the lower edge lifting drive source 533 is a lead screw motor, the motor part of which is fixedly connected to the lower edge fixing bracket 536, the lead screw of which extends in the up and down direction, and the lead screw nut of which is connected to the lower edge lifting bracket 532. To guide the vertical movement of the lower edge lifting bracket 532, a lower edge slider 537 extending in the vertical direction is provided on the lower edge fixed bracket 536, and a lower edge guide rail that slides and engages with the lower edge slider 537 is provided on the lower edge lifting bracket 532. Preferably, both the lower edge guide drive source 534 and the lower edge push plate drive source 531 are cylinders. The piston rod of the cylinder of the lower edge guide drive source 534 is connected to the lower edge push plate drive source 531, and the piston rod of the cylinder of the lower edge push plate drive source 531 is connected to the lower edge push plate 535.

[0176] like Figure 16 As shown, the lower straight edge push plate assembly 54 includes a lower straight edge push plate drive source 545 connected to the lower platform 23 via a lower straight edge fixing bracket 544. The lower straight edge push plate drive source 545 is connected to the lower straight edge push plate 541 via a lower straight edge push plate connecting block 542, and is used to drive the lower straight edge push plate 541 to translate downwards into the lower cavity (i.e., translate in the left-right direction) to press the lower fabric piece 7 placed in the lower cavity. Preferably, the lower straight edge push plate drive source 545 is a cylinder, and its cylinder piston rod is connected to the lower straight edge push plate 541 via the lower straight edge push plate connecting block 542. To guide the translation of the lower straight edge push plate 541 and avoid skewing, the lower straight edge push plate assembly 54 also includes a fixedly installed lower straight edge guide rail 543, which extends in the left-right direction, and the lower straight edge push plate connecting block 542 is slidably engaged with the lower straight edge guide rail 543.

[0177] like Figure 13As shown, the lower cavity baffle assembly 55 includes a lower baffle block drive source 551 connected to the lower platform 23 via a lower baffle block bracket 553. The lower baffle block drive source 551 is connected to the lower baffle block 552 and is used to drive the lower baffle block 552 to move up and down. A second slot 511 is also provided on the rear side of the lower cavity plate 51. The lower baffle block 552 can move upward under the drive of the lower baffle block drive source 551 and pass through the second slot 511 to enter the lower cavity, causing the lower fabric piece to fold upward against the fastening edge 71. The lower baffle block drive source 551 is preferably a cylinder, and its cylinder piston rod is connected to the lower baffle block 552.

[0178] like Figure 17 As shown, the upper straight-edge push plate assembly 42 and the lower snap-edge push plate assembly 53 are arranged opposite each other, and both are located on the same side of the upper cavity plate 433 and the lower cavity plate 51; the upper fixed push plate assembly 44 and the lower straight-edge push plate assembly 54 are arranged opposite each other, and both are located on the same side of the upper cavity plate 433 and the lower cavity plate 51.

[0179] Combination Figures 1-19 As can be seen, the working process of the automatic waistband folding device in Embodiment 1 is as follows:

[0180] Initial state: The piston rods of the cylinders of the first lifting drive source 31 and the second lifting drive source 111 are both extended. The third lifting drive source 113 causes the floating mounting plate 114 to be at a preset loading height. At this time, the distance between the upper cavity and the lower cavity is a preset distance, specifically 30mm. The piston rod of the cylinder of the upper clamp lifting drive source 467 is extended, and the clamping jaws 463 are open.

[0181] Feeding: The lower fabric piece 7 is manually placed into the lower cavity, and the upper fabric piece 6 is fed into the upper cavity. The trouser placket is placed in the lower gripper 464. The upper cavity assembly 43 removes the upper fabric piece 6. The cylinder piston rod of the upper baffle block drive source 451 extends, driving the upper baffle block 452 to move downward. The upper baffle block 452 passes through the upper cavity, causing the upper fabric piece to bend downward against the buttonhole 61.

[0182] The specific process of the upper cavity assembly 43 removing the upper fabric piece 6 is as follows:

[0183] When the upper cavity assembly 43 adopts the structure of Embodiment 1, the negative pressure mechanism works, and the upper fabric sheet 6 is adsorbed and fixed in the upper cavity due to the negative pressure.

[0184] When the upper cavity assembly 43 adopts the structure of Embodiment 2, the needle driving source 437 drives the needle block 432 to move downward, and the fixing needle 4321 passes through the upper cavity plate 433, enters the upper cavity and pierces the upper cloth piece 6, thus completing the fixing of the upper cloth piece 6.

[0185] When the negative pressure mechanism is activated, the lower fabric piece 7 is adsorbed and fixed in the lower cavity due to the negative pressure. The cylinder piston rods of the lower side lifting drive source 524 and the lower side tongue plate drive source 521 both extend, and then the cylinder piston rod of the lower side lifting drive source 524 retracts, driving the lower side tongue plate 526 to press onto the lower fabric piece 7.

[0186] Folding: The folding action of the upper folding unit is as follows: The piston rod of the cylinder of the upper straight edge push plate drive source 422 extends, and the upper straight edge push plate 424 enters the upper cavity; the piston rod of the cylinder of the upper fixed push plate drive source 442 retracts, and the upper fixed push plate 443 enters the upper cavity, folding the two upper fabric non-buttoned edges 62 inward into the upper cavity. Subsequently, the clamping jaws 463 close, and the upper jaw 465 and lower jaw 464 clamp the trouser placket, so that the trouser placket is close to the bottom of the upper fabric non-buttoned edge 62 adjacent to the upper fabric buttoned edge non-buttoned side 611. The piston rod of the cylinder of the upper buttoned edge push plate drive source 413 extends, driving the upper buttoned edge push plate 412 to move towards the upper cavity, folding the upper fabric buttoned edge non-buttoned side 611 inward into the upper cavity. The upper edge lifting drive source 417 drives its screw to rotate, causing the upper edge lifting bracket 415 to move to the set pre-folding height. Then, the cylinder piston rod of the upper edge tongue drive source 414 extends, driving the upper edge tongue 411 to move horizontally towards the upper cavity, and pre-folding the upper fabric piece into the upper cavity along the upper edge fastening side 612.

[0187] The folding action of the lower folding unit is as follows: The piston rod of the cylinder of the lower straight edge push plate drive source 545 extends, driving the lower straight edge push plate 541 to move horizontally towards the lower cavity and press against the lower fabric piece 7. The piston rod of the cylinder of the lower side tongue plate drive source 521 retracts, driving the lower side tongue plate 526 to exit the lower cavity. The piston rod of the cylinder of the lower fabric block drive source 551 extends, driving the lower fabric block 552 to move upward and pass through the lower cavity plate 51, causing the non-fastening edge 71 of the lower fabric piece to bend upward. The piston rod of the cylinder of the lower side lifting drive source 524 extends, driving the lower side tongue plate drive source 521 and the lower side push plate drive source 522 to move upward; the piston rods of the cylinders of the lower side tongue plate drive source 521 and the lower side push plate drive source 522 both extend, driving the lower side tongue plate 526 and the lower side push plate 525 to move horizontally towards the lower cavity respectively, and the lower side tongue plate 526 and the lower side push plate 525 enter the lower cavity, folding the non-buttoned edge 71 of the lower fabric piece inward into the lower cavity. The folding state of the upper fabric piece 6 and the lower fabric piece 7 is as follows. Figure 18 As shown.

[0188] The folding actions of the aforementioned upper and lower folding units can be performed simultaneously.

[0189] Pre-fastening: The third lifting drive source 113 drives its lead screw to rotate, causing the floating mounting plate 114 to move down to the pre-fastening height. The lower fastening edge lifting drive source 533 drives its lead screw to rotate, causing the lower fastening edge push plate 535 to move to the pre-folding height. Then, the cylinder piston rod of the lower fastening edge push plate drive source 531 extends, driving the lower fastening edge push plate 535 to move downwards towards the cavity, inserting the lower fabric fastening edge 72 into the gap formed by the folded upper fabric fastening edge fastening side 612, so that the lower fabric fastening edge 72 and the upper fabric fastening edge fastening side 612 are pre-fastened, as shown. Figure 19 As shown.

[0190] Interlocking: The third lifting drive source 113 drives its lead screw to rotate, causing the floating mounting plate 114 to move upward to the joining height. During this process, steps 1) and 2) are performed simultaneously:

[0191] 1) The upper edge lifting drive source 417 drives its screw to rotate, so that the upper edge tongue plate 411 moves to the same height as the upper edge push plate 412. At the same time, the cylinder piston rod of the upper edge guide drive source 416 extends, driving the upper edge tongue plate 411 to fully enter the upper cavity.

[0192] 2) The lower edge lifting drive source 533 drives its lead screw to rotate, so that the lower edge push plate 535 moves to the same height as the lower straight edge push plate 541. At the same time, the cylinder piston rod of the lower edge guide drive source 534 extends, driving the lower edge push plate 535 to fully enter the lower cavity.

[0193] At this point, the folding and interlocking of the waistband is complete, as follows: Figure 20 As shown.

[0194] Pressing: The output end of the lifting drive source 431 passes through the through hole 4332 on the upper cavity plate 433, pressing the upper fabric piece 6 and the lower fabric piece 7 tightly onto the lower cavity. The trouser placket is located between the non-buttoning edge 62 of the upper fabric piece and the second non-buttoning edge 73 of the lower fabric piece. Subsequently, the upper cavity releases the fixation of the upper fabric piece 6, and the piston rods of the cylinders of the lower buttoning edge guide drive source 534, the upper buttoning edge tongue plate drive source 414, the upper buttoning edge guide drive source 416, the upper buttoning edge push plate drive source 413, the upper straight edge push plate drive source 422, the lower side tongue plate drive source 521, the lower side push plate drive source 522, the lower straight edge push plate drive source 545, the upper baffle block drive source 451, and the lower baffle block drive source 551 all retract. The piston rod of the cylinder of the upper fixed push plate drive source 442 extends, and each push plate, tongue plate, and baffle block in the upper folding unit and the lower folding unit exits the upper cavity or the lower cavity. The clamp jaws 463 open, and the piston rod of the cylinder of the upper clamp lifting drive source 466 retracts, driving the upper jaws 465 and lower jaws 464 to completely separate from the trouser placket. The third lifting drive source 113 resets, and simultaneously, the upper and lower button edge lifting drive sources 417 and 533 reset. The piston rods of the cylinders of the lifting drive source 431 and the first lifting drive source 31 both retract.

[0195] Furthermore, to simultaneously complete the folding and interlocking of the left and right waistbands and improve work efficiency, such as... Figure 1 As shown, the upper folding mechanism 1 of Embodiment 1 includes two upper folding units, namely, the upper left folding unit 11 and the upper right folding unit 12; the lower folding mechanism 2 includes two lower folding units, namely, the lower left folding unit 21 and the lower right folding unit 22. The upper left folding unit 11 and the lower left folding unit 21 are arranged vertically correspondingly, and the upper right folding unit 12 and the lower right folding unit 22 are also arranged vertically correspondingly. The upper left folding unit 11 and the upper right folding unit 12 have the same structure and operation process, and are arranged symmetrically from left to right; the lower left folding unit 21 and the lower right folding unit 22 have the same structure and operation process, and are arranged symmetrically from left to right.

[0196] Example 2

[0197] like Figures 21-23 As shown, the automatic waistband folding device provided in Embodiment 2 adds a waistband folding feeding mechanism to the device in Embodiment 1. The waistband folding feeding mechanism includes an upper folding feeding unit 8, which is located below the upper cavity assembly 43. It includes an avoidance drive assembly, an upper folding feeding drive source 82 connected to the avoidance drive assembly, and an upper folding feeding plate 88 connected to the upper folding feeding drive source 82. The top of the upper folding feeding plate 88 is provided with several feeding needles 89, which can pierce the fabric piece 6 from bottom to top. The avoidance drive assembly is used to drive the upper folding feeding drive source 82 and the upper folding feeding plate 88 to simultaneously approach or move away from the upper cavity assembly 43, realizing the avoidance action of the upper folding feeding unit 8. The upper folding feeding drive source 82 is used to drive the upper folding feeding plate 88 into or out of the upper cavity, completing the feeding action to the upper cavity.

[0198] During operation, the upper fabric piece 6 is placed on the upper folding feed plate 88. The upper folding feed drive source 82 drives the upper folding feed plate 88 to move upward, feeding the upper fabric piece 6 into the upper cavity. The upper cavity then removes the upper fabric piece 6. Next, the upper folding feed drive source 82 drives the upper folding feed plate 88 to move downward. At this time, the feed needle 89 separates from the upper fabric piece 6. Then, the avoidance drive assembly drives the upper folding feed drive source 82 and the upper folding feed plate 88 to move away from the upper cavity assembly simultaneously. Thus, the upper folding feed unit 8 completes one feeding operation.

[0199] As can be seen from the above, the upper folding feeding unit 8 provided in Embodiment 2 can assist in the feeding of the fabric piece on the waistband, saving manual operation steps and greatly improving production efficiency.

[0200] like Figure 22As shown, the obstacle avoidance drive assembly specifically includes an upper folding feeding base plate 86, an upper folding feeding connecting plate 84 slidably disposed on the upper folding feeding base plate 86, a second upper folding obstacle avoidance drive source 85 for driving the upper folding feeding connecting plate 84 to translate in the left and right direction, and a first upper folding obstacle avoidance drive source 83 disposed on the upper folding feeding connecting plate 84. The first upper folding obstacle avoidance drive source 83 is connected to the upper folding feeding drive source 82 through a connecting plate, and is used to drive the upper folding feeding drive source 82 and the upper folding feeding plate 88 to move up and down simultaneously. The second upper folding obstacle avoidance drive source 85 is used to drive the first upper folding obstacle avoidance drive source 83, the upper folding feeding drive source 82, and the upper folding feeding plate 88 to translate in the left and right direction simultaneously.

[0201] Preferably, the first upper folding avoidance drive source 83, the second upper folding avoidance drive source 85, and the upper folding feeding drive source 82 are all cylinders. The lower end of the cylinder piston rod of the first upper folding avoidance drive source 83 is connected to the upper folding feeding connecting plate 84, the upper end of the cylinder piston rod of the upper folding feeding drive source 82 is connected to the upper folding feeding plate 88 through the upper folding feeding bracket 81, and the end of the cylinder piston rod of the second upper folding avoidance drive source 85 is connected to the upper folding feeding connecting plate 84.

[0202] Combination Figures 1-22 As can be seen, the working process of the automatic waistband folding device in Embodiment 2 is as follows:

[0203] Initial state: The piston rods of the cylinders of the first lifting drive source 31 and the second lifting drive source 111 are both extended. The third lifting drive source 113 causes the floating mounting plate 114 to be at a preset feeding height. At this time, the distance between the upper cavity and the lower cavity is a preset distance, specifically 30mm. The piston rod of the cylinder of the upper clamp lifting drive source 467 is extended, the clamp jaws 463 are open, and the lower jaws 464 and the upper jaws 465 are symmetrical about the upper surface of the upper straight edge push plate 424. The piston rods of the cylinders of the first upper folding avoidance drive source 83 and the second upper folding avoidance drive source 85 are both extended, and the piston rod of the cylinder of the upper folding feeding drive source 82 is retracted. The upper folding feeding plate 88 is located between the upper cavity and the lower cavity, and the distance between them is the same.

[0204] Feeding: The lower fabric piece 7 is manually placed into the lower cavity, and the upper fabric piece 6 is fed into the upper cavity. The trouser placket is placed in the lower gripper 464. The piston rod of the cylinder of the upper folding feeding drive source 82 extends, driving the upper folding feeding plate 88 to move upward, feeding the upper fabric piece 6 into the upper cavity. The upper cavity assembly 43 removes the upper fabric piece 6. Then, the piston rod of the cylinder of the upper folding feeding drive source 82 retracts, driving the upper folding feeding plate 88 to move downward, separating the upper fabric piece 6 from the feeding needle 89. The piston rods of the cylinders of the first upper folding avoidance drive source 83 and the second upper folding avoidance drive source 85 both retract, driving the upper folding feeding plate 88 away from the upper cavity assembly 43. The piston rod of the cylinder of the upper baffle block drive source 451 extends, driving the upper baffle block 452 to move downward. The upper baffle block 452 passes through the upper cavity, causing the upper fabric piece to bend downward against the buttonhole 61. The specific process of the upper cavity assembly 43 removing the upper fabric piece 6 is the same as in Embodiment 1, and will not be repeated here.

[0205] When the negative pressure mechanism is activated, the lower fabric piece 7 is adsorbed and fixed in the lower cavity due to the negative pressure. The cylinder piston rods of the lower side lifting drive source 524 and the lower side tongue plate drive source 521 both extend, and then the cylinder piston rod of the lower side lifting drive source 524 retracts, driving the lower side tongue plate 526 to press onto the lower fabric piece 7.

[0206] The folding, pre-fastening, interlocking, and pressing steps are all the same as the corresponding steps in Example 1.

[0207] Furthermore, to simultaneously complete the folding and interlocking of the left and right waistbands and improve work efficiency, such as... Figure 23 As shown, the waistband folding feeding mechanism of Embodiment 2 includes two upper folding feeding units 8, namely the upper left folding feeding unit 801 and the upper right folding feeding unit 802. Among them, the upper left folding feeding unit 801 is used to feed material to the upper left folding unit 11, and the upper right folding feeding unit 802 is used to feed material to the upper right folding unit 12.

[0208] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An automatic waistband folding device for folding the upper fabric piece (6) and the lower fabric piece (7) of the waistband, characterized in that, It includes an upper folding mechanism (1) and a lower folding mechanism (2); The upper folding mechanism (1) includes an upper folding unit, which includes a floating mounting plate (114) that can move up and down. The floating mounting plate (114) is equipped with an upper edge pusher assembly (41), an upper straight edge pusher assembly (42), an upper cavity assembly (43), an upper fixed pusher assembly (44), an upper cavity baffle assembly (45), and an upper clamp assembly (46). The upper cavity assembly (43) includes an upper cavity plate (433) installed below the floating mounting plate (114). The bottom of the upper cavity plate (433) is provided with an upper cavity for accommodating the upper fabric piece (6), and the upper fabric piece (6) is detachably installed in the upper cavity; the upper cavity baffle assembly (45) and the upper snap-edge push plate assembly (41) are used to fold the snap-edge (61) of the upper fabric piece, the upper straight edge push plate assembly (42) and the upper fixed push plate assembly (44) are used to fold the non-snap-edge (62) of the upper fabric piece, and the upper clamp assembly (46) is used to place the trouser fly between the upper fabric piece (6) and the lower fabric piece (7); The lower folding mechanism (2) includes a lower folding unit located below the upper folding unit. The lower folding unit includes a lower cavity plate (51), a lower side push plate assembly (52), a lower snap-on push plate assembly (53), a lower straight push plate assembly (54), and a lower cavity baffle assembly (55). The top of the lower cavity plate (51) is provided with a lower cavity for accommodating the lower fabric piece (7). The lower cavity is arranged opposite to the upper cavity and is connected to a negative pressure mechanism for negative pressure adsorption and fixation of the lower fabric piece (7). The lower cavity baffle assembly (55) and the lower side push plate assembly (52) are used to fold the first non-button-upside edge (71) of the lower fabric piece. The lower snap-on push plate assembly (53) is used to fold the button-upside edge (72) of the lower fabric piece. The lower straight push plate assembly (54) is used to limit the lower fabric piece (7).

2. The automatic waistband folding device according to claim 1, characterized in that, The upper folding mechanism (1) includes two upper folding units, and the lower folding mechanism (2) includes two lower folding units. The two upper folding units and the two lower folding units are arranged in a one-to-one correspondence.

3. The automatic waistband folding device according to claim 1, characterized in that, The upper cavity assembly (43) fixes the upper fabric piece (6) by needle punching or negative pressure adsorption.

4. The automatic waistband folding device according to claim 1, characterized in that, The upper edge push plate assembly (41) includes an upper edge push plate drive source (413) and an upper edge lifting drive source (417) connected to the floating mounting plate (114), respectively. The upper edge push plate drive source (413) is connected to the upper edge push plate (412). The upper edge lifting drive source (417) is connected in sequence to an upper edge guide drive source (416), an upper edge tongue plate drive source (414), and an upper edge tongue plate (411).

5. The automatic waistband folding device according to claim 1, characterized in that, The upper straight-edge push plate assembly (42), the upper fixed push plate assembly (44), and the lower straight-edge push plate assembly (54) all include a push plate driving source, and a push plate is connected to the push plate driving source.

6. The automatic waistband folding device according to claim 1, characterized in that, Both the upper cavity baffle assembly (45) and the lower cavity baffle assembly (55) include a baffle block driving source and a baffle block that moves up and down under the drive of the baffle block driving source. The baffle block can pass through the upper cavity plate (433) or the lower cavity plate (51) and enter the upper cavity or the lower cavity.

7. The automatic waistband folding device according to claim 1, characterized in that, The upper clamp assembly (46) includes a clamp jaw (463), an upper clamp translation drive source (461) for driving the clamp jaw (463) to translate, and an upper clamp lifting drive source (467) for driving the clamp jaw (463) to move up and down.

8. The automatic waistband folding device according to claim 1, characterized in that, The lower side push plate assembly (52) includes a lower side lifting drive source (524), and a lower side tongue plate drive source (521) and a lower side push plate drive source (522) that move up and down synchronously under the drive of the lower side lifting drive source (524). The lower side tongue plate drive source (521) is connected to the lower side tongue plate (526), ​​and the lower side push plate drive source (522) is connected to the lower side push plate (525).

9. The automatic waistband folding device according to claim 1, characterized in that, The lower edge push plate assembly (53) includes a lower edge lifting drive source (533), a lower edge guide drive source (534), a lower edge push plate drive source (531), and a lower edge push plate (535) connected in sequence to the lower edge lifting drive source (533).

10. The automatic waistband folding device according to claim 1, characterized in that, It also includes a waistband folding feeding mechanism, which includes an upper folding feeding unit (8) disposed below the upper cavity assembly (43); The upper folding feeding unit (8) includes an avoidance driving assembly, an upper folding feeding driving source (82) connected to the avoidance driving assembly, and an upper folding feeding plate (88) connected to the upper folding feeding driving source (82). The top of the upper folding feeding plate (88) is provided with a plurality of feeding needles (89). The avoidance driving assembly is used to drive the upper folding feeding driving source (82) and the upper folding feeding plate (88) to simultaneously approach or move away from the upper cavity assembly (43). The upper folding feeding driving source (82) is used to drive the upper folding feeding plate (88) to enter or exit the upper cavity.

Images