Trousers waist folding and feeding mechanism and trousers waist folding device

Abstract

The utility model provides a trouser waist folding and feeding mechanism which comprises an upper folding and feeding unit, a lower folding and feeding unit and a lower folding and feeding unit. The upper folding and feeding unit comprises an avoiding driving assembly, an upper folding and feeding driving source connected with the avoiding driving assembly and an upper folding and feeding plate connected with the upper folding and feeding driving source, and a plurality of feeding needles are arranged at the top of the upper folding and feeding plate; the avoiding driving assembly is used for driving the upper folding and feeding driving source and the upper folding and feeding plate to be close to or away from the upper cavity assembly at the same time, and the upper folding and feeding driving source is used for driving the upper folding and feeding plate to enter or exit from the upper cavity. The utility model further provides a trouser waist folding and feeding mechanism. The feeding device can assist in completing the feeding work of the upper cloth piece, so that the upper cloth piece is automatically mounted in the upper cavity, and the folding work of the upper cloth piece is conveniently completed by the trouser waist folding device.

Description

Technical Field

[0001] This utility model relates to the field of fabric folding technology, and in particular to a waistband folding feeding mechanism and waistband folding device. Background Technology

[0002] The sewing process for jeans waistbands involves folding and interlocking the two layers of fabric before sewing. Currently, this is mostly done manually, with workers manually taking the top and bottom fabric pieces and folding and interlocking them to sew the waistband. This requires a high level of skill from the workers and takes a considerable amount of time, severely impacting the overall production efficiency. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a waistband folding and feeding mechanism, which can assist in the feeding of fabric pieces on the waistband.

[0004] This utility model provides a waistband folding feeding mechanism, including an upper folding feeding unit disposed below an upper cavity assembly. The upper cavity assembly includes an upper cavity plate, with an upper cavity at the bottom of the upper cavity plate. The upper fabric piece of the waistband is detachably installed in the upper cavity. The upper folding feeding unit includes an avoidance drive assembly, an upper folding feeding drive source connected to the avoidance drive assembly, and an upper folding feeding plate connected to the upper folding feeding drive source. The top of the upper folding feeding plate is provided with several feeding needles. The avoidance drive assembly is used to drive the upper folding feeding drive source and the upper folding feeding plate to simultaneously approach or move away from the upper cavity assembly. The upper folding feeding drive source is used to drive the upper folding feeding plate to enter or exit the upper cavity.

[0005] Preferably, the avoidance drive assembly includes a first upper folding avoidance drive source for driving the upper folding feeding drive source and the upper folding feeding plate to move up and down simultaneously, and a second upper folding avoidance drive source for driving the first upper folding avoidance drive source, the upper folding feeding drive source and the upper folding feeding plate to move horizontally simultaneously.

[0006] Preferably, the upper cavity assembly further includes a needle-punching drive source and a needle-punching block that moves up and down under the drive of the needle-punching drive source. The lower end of the needle-punching block is provided with a fixing needle, which passes through the upper cavity plate. When the needle-punching drive source drives the needle-punching block to move down, the fixing needle enters the upper cavity and needles and fixes the upper fabric piece.

[0007] Preferably, the top of the upper cavity plate is provided with a needle guide block, the needle guide block has an inclined surface, the needle block is slidably disposed on the inclined surface, and the fixed needle has an included angle with the lower surface of the upper cavity plate; the needle drive source is connected to a needle pressing block, and the needle pressing block abuts against the needle block.

[0008] Preferably, the upper cavity is connected to a negative pressure mechanism for negative pressure adsorption and fixation of the upper fabric sheet.

[0009] Preferably, the system includes an upper folding mechanism and the aforementioned upper folding feeding unit; the upper folding mechanism includes an upper folding unit, which includes a vertically movable floating mounting plate, on which an upper edge-fastening pusher assembly, an upper straight edge pusher assembly, an upper fixed pusher assembly, an upper cavity baffle assembly, and the aforementioned upper cavity assembly are mounted; the upper cavity baffle assembly and the upper edge-fastening pusher assembly are used to fold the upper fabric piece with its edges fastened together, and the upper straight edge pusher assembly and the upper fixed pusher assembly are used to fold the upper fabric piece with its edges not fastened together; the number of upper folding feeding units is the same as the number of upper folding units.

[0010] Preferably, the upper edge push plate assembly includes an upper edge push plate drive source and an upper edge lifting drive source, which are respectively connected to the floating mounting plate. The upper edge push plate drive source is connected to the upper edge push plate. The upper edge lifting drive source is sequentially connected to an upper edge guide drive source, an upper edge tongue plate drive source, and an upper edge tongue plate.

[0011] Preferably, both the upper straight-edge push plate assembly and the upper fixed push plate assembly include a push plate driving source, and a push plate is connected to the push plate driving source.

[0012] Preferably, the upper cavity baffle assembly includes an upper baffle block drive source connected to the floating mounting plate, and an upper baffle block that moves up and down under the drive of the upper baffle block drive source. The upper baffle block can pass through the upper cavity plate and enter the upper cavity.

[0013] Preferably, the upper folding mechanism further includes a first lifting drive source, which is used to drive the upper folding unit to move up and down; the upper folding unit includes a second lifting drive source, and the floating mounting plate moves up and down under the drive of the second lifting drive source.

[0014] The advantage of this invention lies in the fact that the feeding plate with feeding needles in the waistband folding feeding mechanism ensures that the upper fabric piece will not shift before entering the upper cavity, while greatly reducing the difficulty of feeding the upper cavity. This waistband folding feeding mechanism can assist in feeding the upper fabric piece, thereby automatically installing the upper fabric piece into the upper cavity, facilitating the folding of the upper fabric piece by the waistband folding device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the relative positions of the upper folding feeding unit and the upper cavity assembly;

[0016] Figure 2 This is a 3D view of the upper folding feeding unit;

[0017] Figure 3 This is a perspective view of Embodiment 1 of the upper cavity assembly;

[0018] Figure 4 This is a perspective view of Embodiment 2 of the upper cavity assembly;

[0019] Figure 5 This is a perspective view of the folding device for trouser waistbands of this utility model;

[0020] Figure 6 This is a 3D view of the upper folding unit;

[0021] Figure 7 This is a schematic diagram showing the relative positions of the upper edge push plate assembly, the upper straight edge push plate assembly, the upper cavity assembly, the upper fixed push plate assembly, and the upper cavity baffle assembly;

[0022] Figure 8 This is a 3D view of the upper edge push plate assembly;

[0023] Figure 9 This is a 3D view of the upper straight-edge push plate assembly;

[0024] Figure 10 This is a 3D view of the upper fixed push plate assembly;

[0025] Figure 11 This is a 3D view of the upper cavity baffle assembly;

[0026] Figure 12 This is a schematic diagram showing the relative positions of the upper left folding unit and the lower left folding unit;

[0027] Figure 13 It is a diagram showing the folded state of the upper and lower fabric pieces;

[0028] Figure 14 This is a diagram showing the pre-fastening status of the upper and lower fabric pieces.

[0029] Component designation explanation:

[0030] 1. Upward folding mechanism

[0031] 11. Top left folding unit

[0032] 111 Second lifting drive source

[0033] 112 Lifting Floating Plate

[0034] 113 Third lifting drive source

[0035] 114 Floating Mounting Plate

[0036] 12 Top right folding unit

[0037] 2. Downward Folding Mechanism

[0038] 21. Lower left folding unit

[0039] 22. Lower right folding unit

[0040] 23. Under the table

[0041] 31 First lifting drive source

[0042] 32. Upper folding fixing plate

[0043] 33 Folding Lifting Platform

[0044] 41 Upper snap-on push plate assembly

[0045] 411 Upper snap-on tongue plate

[0046] 412 Upper edge push plate

[0047] 413 Upper Edge Push Plate Drive Source

[0048] 414 Upper latch tongue plate drive source

[0049] 415 Upper Edge Lifting Bracket

[0050] 416 Upper Edge Guide Drive Source

[0051] 417 Upper Edge Lifting Drive Source

[0052] 418 Upper edge fixing plate

[0053] 42 Upper straight edge push plate assembly

[0054] 421 Upper straight edge fixing plate

[0055] 422 Upper Straight Edge Push Plate Driver Source

[0056] 423 Upper straight edge connecting plate

[0057] 424 Upper straight edge push plate

[0058] 43 Upper cavity assembly

[0059] 431 Lifting Drive Source

[0060] 432 needle-punched block

[0061] 4321 Fixing pin

[0062] 433 Upper cavity plate

[0063] 4331 Grooving

[0064] 4332 Through Hole

[0065] 434 Needle-piercing guide block

[0066] 435 Needle-punched block

[0067] 436 tension spring

[0068] 437 Needle-driven source

[0069] 438 Needle Puncture Frame

[0070] 44 Upper fixed push plate assembly

[0071] 441 Fixed push plate bracket

[0072] 442 Fixed push plate drive source

[0073] 443 Upper fixed push plate

[0074] 444 Upper fixed connection plate

[0075] 45 Upper cavity baffle assembly

[0076] 451 Upper Cloth Block Drive Source

[0077] 452 Upper cover cloth block

[0078] 453 Upper cover bracket

[0079] 51 Lower cavity plate

[0080] 52 Lower side push plate assembly

[0081] 53 Lower edge push plate assembly

[0082] 6 pieces of cloth

[0083] 61. Button-up seams on the upper fabric piece.

[0084] 611 Top fabric piece with snap-on edge, non-snap-on side

[0085] 612 Upper fabric piece snap-on edges snap-on sides

[0086] 62. Top fabric piece with non-buttoned edges.

[0087] 7. Lower fabric piece

[0088] 71. Non-buttoned seams on the bottom fabric piece.

[0089] 72. Button-up seams on the bottom fabric piece.

[0090] 8. Folding feeding unit

[0091] 81 Folding Feeding Bracket

[0092] 82 Folding Feeding Drive Source

[0093] 83 First Upward Folding Avoidance Drive Source

[0094] 84 Folding feeder connecting plate

[0095] 85 Second upper folding avoidance drive source

[0096] 86 Folding Feeding Base Plate

[0097] 87 Folding Feeding Rail

[0098] 88 Folding feeder plate

[0099] 89 Feed needle

[0100] 801 Top-left folding feeding unit

[0101] 802 Upper right folding feeding unit Detailed Implementation

[0102] 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.

[0103] 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.

[0104] 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.

[0105] Figure 1 The diagram shows the relative positions of the waistband folding feeding mechanism and the upper cavity assembly. In the following description, ... Figure 1The accompanying diagram serves as a reference for orientation, defining the left side as the left side along the left of the view paper, the right side as the right side along the right of the view paper, the top as the top along the top of the view paper, the bottom as the bottom along the bottom of the view paper, the front side as the outward side along the view paper, and the rear side as the backward side along the view paper.

[0106] like Figure 1 and Figure 13 As shown, the folding feeding mechanism for waistbands provided by this utility model includes an upper folding feeding unit 8, which is located below the upper cavity assembly 43. The upper cavity assembly 43 includes an upper cavity plate 433, and an upper cavity is provided at the bottom of the upper cavity plate 433. The upper fabric piece 6 of the waistband can be detachably installed in the upper cavity.

[0107] like Figure 2 As shown, the upper folding feeding unit 8 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.

[0108] 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. The upper folding feed drive source 82 then drives the upper folding feed plate 88 to move downward. At this point, the feed needle 89 separates from the upper fabric piece 6. Next, 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 43 simultaneously. Thus, the upper folding feed unit 8 completes one feeding operation.

[0109] As can be seen from the above, the upper folding feeding unit 8 provided by this utility model can assist in the feeding of the fabric piece on the waistband, saving manual operation steps and greatly improving production efficiency.

[0110] like Figure 2As 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.

[0111] 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.

[0112] The aforementioned upper cavity assembly 43 has the following two embodiments to achieve detachable installation between the upper fabric piece 6 and the upper cavity:

[0113] like Figure 3 As shown, in one embodiment of the upper cavity assembly 43, there is a needle driving source 437 disposed on the needle punching machine frame 438, and a needle block 432 that moves up and down under the drive of the needle driving source 437. The needle 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 driving source 437 drives the needle block 432 to move down, the fixing needles 4321 enter the upper cavity and needle-fix the upper fabric piece 6, thus firmly installing the upper fabric piece 6 in the upper cavity.

[0114] In Embodiment 1, the top of the upper cavity plate 433 is provided with two needle-punching guide blocks 434, each needle-punching guide block 434 having 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 disposed on each inclined surface. The fixing needle 4321 at the lower end of each needle-punching block 432 forms an angle (preferably 40°) with the lower surface of the upper cavity plate 433 (i.e., the upper surface of the upper cavity), meaning that each set of fixing needles 4321 is inclined to pierce the upper fabric piece 6, effectively preventing 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. Simultaneously, a tension spring 436 is 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.

[0115] like Figure 4 As shown, in Embodiment 2 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 sheet 6. The negative pressure mechanism is specifically a vacuum machine.

[0116] like Figure 5 As shown, this utility model also provides a waistband folding device, which is used to fold the upper and lower fabric pieces of the waistband, including an upper folding mechanism 1, a lower folding mechanism 2 and the aforementioned upper folding feeding unit 8.

[0117] like Figure 13 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 non-button-upper edge 71; the long straight edge on one side of the left or right side of the lower fabric piece 7 is the button-upper edge 72. 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.

[0118] like Figure 5-6As 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 connected to the first lifting drive source 31. 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. 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 push plate assembly 41, an upper straight edge push plate assembly 42, the aforementioned upper cavity assembly 43, an upper fixed push plate assembly 44, and an upper cavity baffle assembly 45 are mounted on the floating mounting plate 114. The second lifting drive source 111 can drive the upper edge push plate assembly 41, the upper straight edge push plate assembly 42, the upper cavity assembly 43, the upper fixed push plate assembly 44, and the upper cavity baffle assembly 45 to move up and down synchronously.

[0119] 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.

[0120] 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.

[0121] like Figure 3-4 and Figure 6 As shown, the upper cavity plate 433 of the aforementioned upper cavity assembly 43 is installed below the floating mounting plate 114.

[0122] In Embodiment 1, the needle puncture drive source 437 is connected to the floating mounting plate 114 via the needle puncture machine frame 438.

[0123] 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. The lifting drive source 431 is preferably a cylinder, and its output end is a cylinder piston rod.

[0124] like Figure 7-8 and Figure 13 As 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.

[0125] like Figure 7 , Figure 9-10 and Figure 13As 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.

[0126] like Figure 2-3 , Figure 7 , Figure 11 and Figure 13 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 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 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.

[0127] like Figure 5 and 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 positioned 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, and a lower cavity baffle assembly. 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 and the negative pressure mechanism connected to the lower cavity can be the same negative pressure mechanism or two independent negative pressure mechanisms. The lower cavity baffle assembly and the lower side push plate assembly 52 are used to fold the non-fastening edges 71 of the lower fabric piece, while the lower snap-on push plate assembly 53 is used to fold the fastening edges 72 of the lower fabric piece.

[0128] Combination Figure 1-14 As can be seen, the working process of the waistband folding device of this utility model is as follows:

[0129] Material handling mechanism status: 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 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. 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.

[0130] Feeding: The lower fabric piece 7 is manually placed on the folding core 901, and the upper fabric piece 6 is placed on the upper folding feed plate 88, so that the feed needle 89 pierces the upper fabric piece 6. The piston rod of the cylinder of the upper folding feed drive source 82 extends, driving the upper folding feed plate 88 to move upward, feeding the upper fabric piece 6 into the upper cavity, and the upper cavity assembly 43 removes the upper fabric piece 6. Then the piston rod of the cylinder of the upper folding feed drive source 82 retracts, driving the upper folding feed plate 88 to move downward, separating the upper fabric piece 6 from the feed 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 feed 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 fastening edge 61.

[0131] The specific process of the upper cavity assembly 43 removing the upper fabric piece 6 is as follows:

[0132] When the upper cavity assembly 43 adopts the structure of Embodiment 1, 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.

[0133] When the upper cavity assembly 43 adopts the structure of Embodiment 2, the negative pressure mechanism works, and the upper fabric sheet 6 is adsorbed and fixed in the upper cavity due to the negative pressure.

[0134] When the negative pressure mechanism is working, the lower fabric piece 7 is adsorbed and fixed in the lower cavity due to the negative pressure.

[0135] Folding: The folding action of the upper folding unit is as follows: The upper straight edge push plate drive source 422 and the upper fixed push plate drive source 442 drive the upper straight edge push plate 424 and the upper fixed push plate 443 to move upwards towards the cavity, completing the inward folding of the two upper fabric non-fastening edges 62. Then, the upper fastening edge push plate drive source 413 drives the upper fastening edge push plate 412 to move upwards towards the cavity, completing the inward folding of the upper fabric fastening edge non-fastening side 611. The upper fastening edge lifting drive source 417 drives the upper fastening edge lifting bracket 415 to move to the set pre-folding position, and then the upper fastening edge tongue plate drive source 414 drives the upper fastening edge tongue plate 411 to move upwards towards the cavity, completing the inward folding of the upper fabric fastening edge fastening side 612. After the lower cavity baffle assembly and the lower side push plate assembly 52 complete the inward folding of the lower fabric non-fastening edge 71, the folding state of the upper fabric 6 and the lower fabric 7 is as follows. Figure 13 As shown.

[0136] Pre-fastening: The third lifting drive source 113 drives the floating mounting plate 114 to descend to the pre-fastening height. The lower fastening edge push plate assembly 53 pushes the lower fabric fastening edge 72 into the gap formed by the folded upper fabric fastening edge 612, so that the lower fabric fastening edge 72 and the upper fabric fastening edge 612 are pre-fastened. Figure 14 As shown.

[0137] Furthermore, to simultaneously fold both the left and right waistbands and improve work efficiency, such as... Figure 5 As shown, the upper folding mechanism 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 waistband folding feeding mechanism includes two upper folding feeding units 8, namely the upper left folding feeding unit 801 and the upper right folding feeding unit 802.

[0138] The upper left folding unit 11 and the lower left folding unit 21 are arranged vertically in a vertically corresponding manner, as are the upper right folding unit 12 and the lower right folding unit 22. 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. The upper left folding unit 11 and the upper right folding unit 12 have the same structure and working process, and are arranged symmetrically from left to right. Similarly, the lower left folding unit 21 and the lower right folding unit 22 have the same structure and working process, and are arranged symmetrically from left to right.

[0139] 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. A folding and feeding mechanism for trouser waistbands, characterized in that, It includes an upper folding feeding unit (8), which is located below the upper cavity assembly (43). The upper cavity assembly (43) includes an upper cavity plate (433), and the bottom of the upper cavity plate (433) is provided with an upper cavity. The upper fabric piece (6) of the waistband is detachably installed in the upper cavity. 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.

2. The waistband folding and feeding mechanism according to claim 1, characterized in that, The avoidance drive assembly includes a first upper folding avoidance drive source (83) for driving the upper folding feeding drive source (82) and the upper folding feeding plate (88) to move up and down simultaneously, and a second upper folding avoidance drive source (85) for driving the first upper folding avoidance drive source (83), the upper folding feeding drive source (82) and the upper folding feeding plate (88) to translate simultaneously.

3. The waistband folding feeding mechanism according to claim 1, characterized in that, The upper cavity assembly (43) further includes a needle-punching drive source (437) and a needle-punching block (432) that moves up and down under the drive of the needle-punching drive source (437). The lower end of the needle-punching block (432) is provided with a fixing needle (4321), which 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 needle (4321) enters the upper cavity and needles the upper fabric piece (6) to fix it.

4. The waistband folding and feeding mechanism according to claim 3, characterized in that, The top of the upper cavity plate (433) is provided with a needle guide block (434), the needle guide block (434) has an inclined surface, the needle block (432) is slidably disposed on the inclined surface, and the fixed needle (4321) has an included angle with the lower surface of the upper cavity plate (433); the needle drive source (437) is connected to a needle pressing block (435), and the needle pressing block (435) abuts against the needle block (432).

5. The waistband folding and feeding mechanism according to claim 1, characterized in that, The upper cavity is connected to the negative pressure mechanism and is used to perform negative pressure adsorption and fixation on the upper fabric piece (6).

6. A waistband folding device, characterized in that, It includes an upper folding mechanism (1) and an upper folding feeding unit (8) as described in any one of claims 1-5; The upper folding mechanism 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 fixed pusher assembly (44), an upper cavity baffle assembly (45), and an upper cavity assembly (43) as described in any one of claims 1-5. The upper cavity baffle assembly (45) and the upper edge pusher assembly (41) are used to fold the upper fabric piece with the edges fastened together (61), and the upper straight edge pusher assembly (42) and the upper fixed pusher assembly (44) are used to fold the upper fabric piece with the edges not fastened together (62). The number of the upper folding feeding units (8) is the same as the number of the upper folding units.

7. The waistband folding device according to claim 6, 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).

8. The waistband folding device according to claim 6, characterized in that, Both the upper straight-edge push plate assembly (42) and the upper fixed push plate assembly (44) include a push plate driving source, and a push plate is connected to the push plate driving source.

9. The waistband folding device according to claim 6, characterized in that, The upper cavity baffle assembly (45) includes an upper baffle block drive source (451) connected to the floating mounting plate (114) and an upper baffle block (452) that moves up and down under the drive of the upper baffle block drive source (451). The upper baffle block (452) can pass through the upper cavity plate (433) and enter the upper cavity.

10. The waistband folding device according to claim 6, characterized in that, The upper folding mechanism (1) further includes a first lifting drive source (31), which is used to drive the upper folding unit to move up and down; the upper folding unit includes a second lifting drive source (111), and the floating mounting plate (114) moves up and down under the drive of the second lifting drive source (111).

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