Trousers waist folding device

Abstract

The invention provides a trouser waist folding device. The trouser waist folding device 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 and an upper cavity cloth blocking 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. By means of the fixing mode that the upper cloth piece is fixed through the upper cavity in a needling mode and the lower cloth piece is adsorbed through the lower cavity in a negative pressure mode, the problem that in the prior art, the posture of the cloth piece is unstable when the trouser waist is folded is solved, and automatic folding and mutual buckling of the trouser waist can be achieved through different action sequences of all the assemblies.

Description

Technical Field

[0001] The invention relates to the technical field of cloth piece folding, and in particular to a trouser waist folding device. Background Art

[0002] In the process of sewing the waistband of jeans, the two layers of fabric of the waistband need to be folded and interlocked before sewing. Currently, the waistband is mostly folded and interlocked by hand. The folding and interlocking process has high requirements on the workers' skill proficiency and takes a long time, which seriously affects the production efficiency of the entire production line. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, the object of the present invention is to provide a trouser waist folding device to help complete the trouser waist folding and interlocking process.

[0004] The invention provides a trouser waist folding device, which is used for folding the upper cloth piece and the lower cloth piece of the trouser waist, and comprises an upper folding mechanism and a lower folding mechanism; the upper folding mechanism comprises an upper folding unit, and the upper folding unit comprises a floating mounting plate which can move up and down, and the floating mounting plate is provided with an upper buckle edge push plate assembly, an upper straight edge push plate assembly, an upper cavity assembly, an upper fixed push plate assembly and an upper cavity cloth stop assembly; the upper cavity assembly comprises an upper cavity plate installed below the floating mounting plate, a needling drive source connected to the floating mounting plate, and a needling block which moves up and down under the drive of the needling drive source; an upper cavity plate for accommodating the upper cloth piece is provided at the bottom of the upper cavity plate, and a fixed needle is provided at the lower end of the needling block, and the fixed needle is penetrated through the upper cavity plate; when the needling drive source drives the needling block to move downward, the fixed needle enters the upper cavity plate The folding mechanism comprises a lower folding unit, and the lower folding unit is arranged below the upper folding unit, and it comprises a lower cavity plate, a lower side edge push plate assembly, a lower buckle edge push plate assembly and a lower cavity cloth stopper assembly, and the top of the lower cavity plate is provided with a lower cavity for accommodating the lower cavity, and the lower cavity is arranged opposite to the upper cavity up and down, and is connected with the negative pressure mechanism for negative pressure adsorption and fixation of the lower cavity; the lower cavity cloth stopper assembly and the lower side edge push plate assembly are used to fold the non-buckled edge of the lower cloth piece, the lower buckle edge push plate assembly is used to fold the buckled edge of the lower cloth piece, and the lower straight edge push plate assembly is used to limit the lower cloth piece.

[0005] Preferably, the upper folding mechanism includes two upper folding units, the lower folding mechanism includes two lower folding units, and the two upper folding units and the two lower folding units are arranged in one-to-one correspondence.

[0006] Preferably, the upper folding mechanism further comprises a first lifting drive source, and the first lifting drive source is used to drive the upper folding unit to move up and down.

[0007] Preferably, the upper folding unit comprises a second lifting drive source, and the floating mounting plate moves up and down under the drive of the second lifting drive source.

[0008] Preferably, the upper folding unit further comprises a lifting floating plate connected to the second lifting driving source, and a third lifting driving source mounted on the floating mounting plate, wherein the third lifting driving source is connected to the lifting floating plate.

[0009] Preferably, a needling guide block is provided on the top of the upper cavity plate, the needling guide block has an inclined surface, the needling block is slidably arranged on the inclined surface, and there is an angle between the fixed needle and the lower surface of the upper cavity plate; the needling drive source is connected to a needling pressure block, and the needling pressure block abuts against the needling block (432).

[0010] Preferably, the upper cavity assembly also includes a lifting drive source connected to the floating mounting plate, and a through hole connected to the upper cavity is opened on the upper cavity plate, and the output end of the lifting drive source can pass through the through hole to press the upper cloth piece against the lower cloth piece.

[0011] Preferably, the upper buckle side push plate assembly includes an upper buckle side push plate driving source and an upper buckle side lifting driving source respectively connected to the floating mounting plate, and the upper buckle side push plate driving source is connected to the upper buckle side push plate; the upper buckle side lifting driving source is sequentially connected to the upper buckle side guide driving source, the upper buckle side tongue plate driving source and the upper buckle side tongue plate.

[0012] Preferably, the upper cavity cloth stop assembly and the lower cavity cloth stop assembly both include a cloth stop block driving source and a cloth stop block that moves up and down driven by the cloth stop block driving source, and the cloth stop block can pass through the upper cavity plate or the lower cavity plate and enter the upper cavity or the lower cavity.

[0013] Preferably, the lower side push plate assembly includes a lower side lifting drive source, and a lower side tongue plate drive source and a lower side push plate drive source that move up and down synchronously under the drive of the lower side lifting drive source, the lower side tongue plate drive source is connected to the lower side tongue plate, and the lower side push plate drive source is connected to the lower side push plate.

[0014] Preferably, the lower buckle edge push plate assembly includes a lower buckle edge lifting drive source, a lower buckle edge guide drive source connected to the lower buckle edge lifting drive source in sequence, a buckle edge push plate drive source and a lower buckle edge push plate.

[0015] Preferably, the lower folding unit further comprises a lower straight edge push plate assembly, and the lower straight edge push plate assembly is arranged on a side of the lower cavity plate away from the lower buckle edge push plate assembly.

[0016] Preferably, the upper straight-side push plate assembly, the upper fixed push plate assembly and the lower straight-side push plate assembly all include a push plate driving source, and the push plate driving source is connected to the push plate.

[0017] Preferably, the waistband folding device also includes a pressing cavity moving mechanism, which includes a core translation driving source, a pressing cavity moving base plate connected to the core translation driving source, a folding core unit arranged on the pressing cavity moving base plate, and a pressing unit connected to the pressing cavity moving base plate, the core translation driving source is used to drive the pressing cavity moving base plate to move closer to or away from the lower cavity plate, the folding core unit includes a folding core installed on the pressing cavity moving base plate, and a plurality of suction holes are provided on the folding core; the pressing unit is arranged above the folding core unit, and includes a movable pressing plate, which can move closer to or away from the folding core.

[0018] Preferably, the number of the folding core units and the pressing units are both two, including a lower left folding core unit and a lower right folding core unit arranged on the pressing moving bottom plate, a left pressing unit arranged above the lower left folding core unit, and a right pressing unit arranged above the lower right folding core unit; the lower left folding core unit also includes a pressing translation driving source arranged on the pressing moving bottom plate, and a pressing telescopic bottom plate slidably arranged on the pressing moving bottom plate, the folding cores of the left pressing unit and the lower left folding core unit are both arranged on the pressing telescopic bottom plate, and the pressing telescopic bottom plate approaches or moves away from the lower right folding core unit under the drive of the pressing translation driving source.

[0019] The present invention uses a method of fixing the upper cloth piece by needle puncture in the upper cavity and the lower cloth piece by negative pressure adsorption in the lower cavity, which solves the problem of unstable cloth piece posture when folding the trouser waist in the prior art, and can realize automatic folding and interlocking of the trouser waist through different action sequences of each component. The height of the upper buckle edge tongue plate and the lower buckle edge push plate are controlled by a screw motor, which is more convenient for debugging. At the same time, the stability of the cloth piece to the buckle edge can be ensured during the interlocking process of the upper and lower cloth pieces, thereby improving the success rate of the interlocking. By setting a folding core unit to drive the movement of the trouser waist, a new method for clamping the double-piece material transfer is provided, and it can also be applied to shoulder loop machines, sleeve fork machines, etc. in the future. The present invention effectively improves the sewing efficiency of the jeans waist and increases the production volume of the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional diagram of a trouser waist folding device according to the first embodiment;

[0021] Figure 2 is a three-dimensional diagram of the upper folding mechanism;

[0022] Figure 3 is a three-dimensional diagram of the upper folding unit;

[0023] Figure 4 It is a schematic diagram 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 and the upper cavity cloth blocking assembly;

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

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

[0026] Figure 7 is a three-dimensional view of the upper cavity assembly;

[0027] Figure 8 is a three-dimensional diagram of the upper fixed push plate assembly;

[0028] Fig. 9 is a stereogram of the upper cavity baffle assembly;

[0029] Fig.10 is a three-dimensional diagram of the lower folding mechanism;

[0030] Fig.11 It is a schematic diagram of the relative positions of the lower side push plate assembly, the lower buckle side push plate assembly, the lower straight side push plate assembly, the lower cavity plate and the lower cavity cloth stop assembly;

[0031] Fig.12 is a three-dimensional view of the lower side push plate assembly;

[0032] Fig.13 is a stereoscopic view of the lower buckle side push plate assembly;

[0033] Fig.14 is a perspective view of the lower straight edge push plate assembly;

[0034] Fig.15 Schematic diagram of the relative positions of the upper left folding unit and the lower left folding unit;

[0035] Fig.16 It is a diagram of the folded state of the upper and lower cloth pieces;

[0036] Fig.17 It is a diagram of the pre-buttoned state of the upper and lower fabric pieces;

[0037] Fig.18 It is a diagram of the folded and interlocked state of the upper and lower fabric pieces;

[0038] Fig.19 is a three-dimensional diagram of a trouser waist folding device according to a second embodiment;

[0039] Fig. 20 It is a three-dimensional diagram of the moving mechanism of the pressing cavity;

[0040] Fig.21 It is a stereogram of the left pressing unit;

[0041] Fig. 22 It is a three-dimensional diagram of the right pressing unit.

[0042] Component number description:

[0043] 1 Upper folding mechanism

[0044] 11 Upper left folding unit

[0045] 111 Second lifting drive source

[0046] 112 Lifting Floating Plate

[0047] 113 Third lifting drive source

[0048] 114 Floating mounting plate

[0049] 12 Upper right folding unit

[0050] 2 Lower folding mechanism

[0051] 21 Lower left folding unit

[0052] 22 Lower right folding unit

[0053] 23 Lower table

[0054] 31 First lifting drive source

[0055] 32 Upper folding fixing plate

[0056] 33 Upper folding lift plate

[0057] 41 Upper buckle side push plate assembly

[0058] 411 Upper buckle tongue plate

[0059] 412 Upper buckle side push plate

[0060] 413 Upper buckle side push plate drive source

[0061] 414 Upper buckle tongue plate drive source

[0062] 415 Upper buckle edge lifting bracket

[0063] 416 Upper buckle edge guide drive source

[0064] 417 Upper buckle edge lifting drive source

[0065] 418 Upper buckle edge fixing plate

[0066] 42 Upper straight edge push plate assembly

[0067] 421 Upper straight edge fixing plate

[0068] 422 Upper straight edge push plate drive source

[0069] 423 Upper straight edge connecting plate

[0070] 424 Upper straight edge push plate

[0071] 43 Upper cavity assembly

[0072] 431 Lifting drive source

[0073] 432 Acupuncture Block

[0074] 4321 Fixed needle

[0075] 433 Upper cavity plate

[0076] 4331 First slot

[0077] 4332 Through Hole

[0078] 434 Acupuncture Guide Block

[0079] 435 Acupuncture Briquetting

[0080] 436 Extension Spring

[0081] 437 Acupuncture drive source

[0082] 438 Acupuncture Machine

[0083] 44 Upper fixed push plate assembly

[0084] 441 Upper fixed push plate bracket

[0085] 442 Upper fixed push plate drive source

[0086] 443 Upper fixed push plate

[0087] 444 Upper fixed connecting plate

[0088] 45 Upper cavity stopper assembly

[0089] 451 Upper cloth block drive source

[0090] 452 Upper baffle

[0091] 453 Upper cloth support bracket

[0092] 51 Lower cavity plate

[0093] 511 Second slot

[0094] 52 Lower side push plate assembly

[0095] 521 Lower side tongue plate drive source

[0096] 522 Lower side push plate drive source

[0097] 523 Lower side push plate drive source mounting plate

[0098] 524 Lower side lifting drive source

[0099] 525 Lower side push plate

[0100] 526 Lower side tongue plate

[0101] 53 Lower buckle side push plate assembly

[0102] 531 Lower buckle side push plate drive source

[0103] 532 Lower buckle edge lifting bracket

[0104] 533 Lower buckle edge lifting drive source

[0105] 534 Lower buckle edge guide drive source

[0106] 535 buckle side push plate

[0107] 536 Lower buckle edge fixing bracket

[0108] 537 Lower buckle edge slider

[0109] 54 Lower straight edge push plate assembly

[0110] 541 Lower straight edge push plate

[0111] 542 Lower straight edge push plate connection block

[0112] 543 Lower straight edge guide rail

[0113] 544 Lower straight edge fixing bracket

[0114] 545 Lower straight edge push plate drive source

[0115] 55 Lower cavity baffle assembly

[0116] 551 Lower cloth block drive source

[0117] 552 Lower baffle

[0118] 553 Lower cloth bracket

[0119] 6 pieces of cloth

[0120] 61 Upper fabric button edge

[0121] 611 Upper fabric piece buckle side non-buckle side

[0122] 612 Upper fabric buckle side buckle side

[0123] 62 Non-buttoned edge of upper fabric

[0124] 7 Lower fabric

[0125] 71 Non-buttoned edge of lower fabric

[0126] 72 Lower fabric button edge

[0127] 8 Pressing cavity moving mechanism

[0128] 81 Right lower folding core unit

[0129] 82 Lower left folding core unit

[0130] 83 Pressing material moving bottom plate

[0131] 84 Core translation drive source

[0132] 801 Folding Core

[0133] 802 Core Bracket

[0134] 803 Pressing translation drive source

[0135] 804 Pressing telescopic bottom plate

[0136] 805 Pressing bracket

[0137] 810 Right pressing unit

[0138] 811 Right pressing translation drive source

[0139] 812 Pressing guide rail

[0140] 813 Pressing Slider Mounting Plate

[0141] 814 Right pressing plate lifting drive source

[0142] 815 Right pressure plate

[0143] 816 Right pressing unit lifting drive source

[0144] 817 Right press lifting connecting plate

[0145] 818 Right pressure fixing plate

[0146] 819 Pressed material floating joint

[0147] 8191 Floating joint connection plate

[0148] 820 Left pressing unit

[0149] 821 Left pressing translation drive source

[0150] 822 Pressing guide rail

[0151] 823 Left pressing plate lifting drive source

[0152] 824 Left pressure plate

[0153] 825 Left pressure slider mounting plate

[0154] 826 Left pressure fixing bracket

[0155] 827 Pressed Floating Joint

[0156] 828 Floating joint connection plate DETAILED DESCRIPTION

[0157] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0158] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0159] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0160] Figure 1 FIG. 1 is a perspective view of a trouser waist folding device according to an embodiment of the present invention. In the following description, Figure 1 Taking the accompanying drawings in as a reference basis for directions, the length direction of the lower table 23 is defined as the left-right direction, the upper left folding unit 11 is located on the left, and the upper right folding unit 12 is located on the right; the width direction of the lower table 23 is defined as the front-to-back direction, and the lower table 23 is located in front of the lower left folding unit 21; the thickness direction of the lower table 23 is defined as the up-down direction, and the upper folding mechanism 1 is located above the lower folding mechanism 2.

[0161] Embodiment 1

[0162] Embodiment 1 provides a trouser waist folding device, which is used to fold the upper and lower fabric pieces of the trouser waist. Figure 1 As shown, the device comprises an upper folding mechanism 1 and a lower folding mechanism 2.

[0163] like Fig.16 As shown, in the upper fabric piece 6 of the trouser waist, the two long straight sides located on the left and right sides of the upper fabric piece 6 are both upper fabric piece non-buttoning sides 62, the short straight side located on the back side of the upper fabric piece 6 is the upper fabric piece buttoning side 61, one side of the upper fabric piece buttoning side 61 is the upper fabric piece buttoning side non-buttoning side 611, and the other side is the upper fabric piece buttoning side buttoning side 612. In the lower fabric piece 7 of the trouser waist, the short straight side located on the back side of the lower fabric piece 7 is the lower fabric piece non-buttoning side 71; the long straight side located on one side of the left and right sides of the lower fabric piece 7 is the lower fabric piece buttoning side 72. The lower fabric piece buttoning side 72 is arranged on one side of the lower fabric piece 7 close to the upper fabric piece buttoning side buttoning side 612.

[0164] like Figure 1-3 As shown, the upper folding mechanism 1 includes an upper folding fixed plate 32, a first lifting drive source 31 installed on the upper folding fixed plate 32, and an upper folding lifting plate 33 transmission-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.

[0165] like Figure 3-9 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, and an upper buckle edge push plate assembly 41, an upper straight edge push plate assembly 42, an upper cavity assembly 43, an upper fixed push plate assembly 44, and an upper cavity cloth blocking assembly 45 are mounted on the floating mounting plate 114. The second lifting drive source 111 can drive the upper buckle 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 cloth blocking assembly 45 to move up and down synchronously.

[0166] Preferably, the upper folding unit further comprises a lifting floating plate 112 connected to the second lifting driving source 111, and a third lifting driving source 113 installed at the bottom of the floating mounting plate 114, wherein the third lifting driving source 113 is connected to the lifting floating plate 112. When adjusting the height of the floating mounting plate 114, the second lifting driving source 111 drives the lifting floating plate 112 to move up and down, driving the third lifting driving source 113 and the floating mounting plate 114 to move up and down synchronously, thereby realizing a large-scale adjustment of the height of each component on the floating mounting plate 114; then the second lifting driving source 111 stops working, and the third lifting driving source 113 works. Since the height of the lifting floating plate 112 is fixed, the third lifting driving source 113 drives the floating mounting plate 114 to move up and down, thereby realizing a small-scale and precise adjustment of the height of each component on the floating mounting plate 114.

[0167] The first lifting drive source 31 and the second lifting drive source 111 are both cylinders, the cylinder piston rod of the first lifting drive source 31 is connected to the upper folding lifting plate 33, and the cylinder piston rod of the second lifting drive source 111 is connected to the lifting floating plate 112. The third lifting drive source 113 is a screw motor, whose motor part is installed at the bottom of the floating mounting plate 114, whose screw extends in the up-down direction and penetrates the lifting floating plate 112, and whose screw nut is connected to the lifting floating plate 112. Those skilled in the art can also replace the specific types of linear displacement devices selected for the first lifting drive source 31, the second lifting drive source 111, and the third lifting drive source 113 as needed.

[0168] like Figure 7 As shown, the upper cavity assembly 43 includes an upper cavity plate 433 installed below the floating mounting plate 114, a needling drive source 437 connected to the floating mounting plate 114 through a needling frame 438, and a needling block 432 that moves up and down driven by the needling drive source 437. The bottom of the upper cavity plate 433 is provided with an upper cavity with an opening facing downward and used to accommodate the upper cloth piece 6; the needling block 432 is located above the upper cavity plate 433, and a plurality of groups of fixing needles 4321 are provided at its lower end, and each group of fixing needles 4321 is penetrated through the upper cavity plate 433; when the needling drive source 437 drives the needling block 432 to move downward, the fixing needles 4321 enter the upper cavity, fix the upper cloth piece 6 by needling, and firmly install the upper cloth piece 6 in the upper cavity.

[0169] Specifically, two acupuncture guide blocks 434 are provided on the top of the upper cavity plate 433, each of which has an inclined surface, and the inclined surfaces of the two acupuncture guide blocks 434 are arranged opposite to each other on the left and right. A puncture block 432 is also slidably arranged on each inclined surface, and there is an angle (preferably 40°) between the fixed needle 4321 at the lower end of each acupuncture block 432 and the lower surface of the upper cavity plate 433 (i.e., the upper surface of the upper cavity), that is, each group of fixed needles 4321 obliquely penetrates the upper cloth piece 6, which can effectively prevent the upper cloth piece 6 from falling off the fixed needles 4321. Acupuncture pressure blocks 435 are connected to the acupuncture drive source 437, and the acupuncture pressure blocks 435 are respectively abutted against the two acupuncture blocks 432. At the same time, a tension spring 436 is also provided between the acupuncture frame 438 and the acupuncture pressure blocks 435. When the acupuncture driving source 437 is working, it can drive the acupuncture pressing block 435 to move downward to overcome the elastic force of the tension spring 436, and the acupuncture block 432 slides down along the inclined surface under the force of the acupuncture pressing block 435, so that the fixing needle 4321 enters the upper mold cavity, completing the acupuncture fixing of the upper cloth piece 6. The acupuncture driving source 437 is preferably a cylinder, and its cylinder piston rod is connected to the acupuncture pressing block 435.

[0170] Furthermore, the upper cavity assembly 43 further includes a lifting driving source 431 connected to the floating mounting plate 114, which is mounted on the acupuncture frame 438. The upper cavity plate 433 is provided with a through hole 4332 connected to the upper cavity. The output end of the lifting driving source 431 can pass through the through hole 4332 to press the upper cloth sheet 6 downward, so that the upper cloth sheet 6 is pressed against the lower cloth sheet 7. The lifting driving source 431 is preferably a cylinder, and its output end is a cylinder piston rod.

[0171] like Figure 4-5 , Figure 7 and Fig.16As shown, the upper buckle edge push plate assembly 41 is arranged at the rear side of the upper cavity assembly 43, and includes an upper buckle edge fixing plate 418 connected to the floating mounting plate 114, and the upper buckle edge push plate driving source 413 and the upper buckle edge lifting driving source 417 are fixed to the upper buckle edge fixing plate 418 respectively. The upper buckle edge push plate driving source 413 is connected to the upper buckle edge push plate 412, and the upper buckle edge push plate driving source 413 can drive the upper buckle edge push plate 412 to translate toward the upper cavity (i.e., translate in the front and rear direction), so that the buckle edge non-buckle side 611 of the upper cloth piece is folded inward. The upper buckle edge lifting driving source 417 is connected to the upper buckle edge lifting bracket 415, and the upper buckle edge guide driving source 416, the upper buckle edge tongue plate driving source 414 and the upper buckle edge tongue plate 411 are connected to the upper buckle edge lifting driving source 415 in sequence. The upper buckle edge lifting drive source 417 can drive the upper buckle edge tongue plate 411 to rise and fall, and the upper buckle edge guide drive source 416 and the upper buckle edge tongue plate drive source 414 can drive the upper buckle edge tongue plate 411 to translate toward the upper cavity, so that the buckle edge and buckle side 612 of the upper cloth piece are folded inward. Preferably, the upper buckle edge lifting drive source 417 is a screw motor, whose motor part is fixedly connected to the upper buckle edge fixing plate 418, whose screw extends in the up-down direction, and whose screw nut is connected to the upper buckle edge lifting bracket 415. The upper buckle edge push plate driving source 413, the upper buckle edge guide driving source 416 and the upper buckle edge tongue plate driving source 414 are all cylinders, the cylinder piston rod of the upper buckle edge push plate driving source 413 is connected to the upper buckle edge push plate 412; the cylinder piston rod of the upper buckle edge guide driving source 416 is connected to the upper buckle edge tongue plate driving source 414, and the cylinder piston rod of the upper buckle edge tongue plate driving source 414 is connected to the upper buckle edge tongue plate 411.

[0172] like Figure 4 , Figure 6-8 and Fig.16 As shown, the upper straight edge push plate assembly 42 and the upper fixed push plate assembly 44 are respectively arranged on the left and right sides of the upper cavity assembly 43. The upper straight edge push plate assembly 42 includes an upper straight edge push plate driving source 422 connected to the floating mounting plate 114 through an upper straight edge fixed plate 421, and the upper straight edge push plate driving source 422 is connected to the upper straight edge push plate 424 through an upper straight edge connecting plate 423. The upper fixed push plate assembly 44 includes an upper fixed push plate driving source 442 connected to the floating mounting plate 114 through an upper fixed push plate bracket 441, and the upper fixed push plate driving source 442 is connected to the upper fixed push plate 443 through an upper fixed connecting plate 444. The upper straight edge push plate driving source 422 and the upper fixed push plate driving source 442 can respectively drive the upper straight edge push plate 424 and the upper fixed push plate 443 to translate toward the upper cavity (i.e., translate in the left and right directions), so that the two upper cloth pieces of non-locking edges 62 are folded inward. Preferably, the upper straight-side push plate driving source 422 and the upper fixed push plate driving source 442 are both cylinders, and the cylinder piston rods of the two are connected to the upper straight-side connecting plate 423 and the upper fixed connecting plate 444 respectively.

[0173] like Figure 4 , Figure 7 , Fig. 9 and Fig.16 As shown, the upper mold cavity cloth block assembly 45 includes an upper cloth block driving source 451 connected to the floating mounting plate 114 through an upper cloth block bracket 453, and the upper cloth block driving source 451 is connected to the upper cloth block 452, and is used to drive the upper cloth block 452 to move up and down. A first slot 4331 is also provided on the rear side of the upper mold cavity plate 433, and the upper cloth block 452 can move downward and pass through the first slot 4331 under the drive of the upper cloth block driving source 451, enter the upper mold cavity, and fold the upper cloth piece downward against the buckle edge 61. The upper cloth block driving source 451 is preferably a cylinder, and its cylinder piston rod is connected to the upper cloth block 452.

[0174] like Fig.10 As shown, the lower folding mechanism 2 includes a lower table 23 and a lower folding unit installed on the lower table 23, and the lower folding unit is arranged below the upper folding unit.

[0175] like Figure 11-16 As shown, the lower folding unit includes a lower cavity plate 51, a lower side push plate assembly 52, a lower buckle side push plate assembly 53, a lower straight side push plate assembly 54 and a lower cavity cloth blocking assembly 55. Among them, the top of the lower cavity plate 51 is provided with a lower cavity for accommodating the lower cloth piece 7, the lower cavity and the upper cavity are arranged opposite to each other up and down, and the lower cavity is connected to the negative pressure mechanism for negative pressure adsorption and fixing of the lower cloth piece 7. The negative pressure mechanism is specifically a vacuum machine.

[0176] like Figure 11-12 As shown, the lower side push plate assembly 52 is arranged at the rear side of the lower cavity plate 51, and includes a lower side lifting driving source 524 connected to the lower table 23, a lower side push plate driving source mounting plate 523 that moves up and down under the drive of the lower side lifting driving source 524, and a lower side tongue plate driving source 521 and a lower side push plate driving source 522 mounted on the lower side push plate driving source mounting plate 523, and the lower side push plate driving source mounting plate 523 drives the lower side tongue plate driving source 521 and the lower side push plate driving source 522 to move up and down synchronously. The lower side tongue plate driving source 521 is connected to the lower side tongue plate 526, and the lower side push plate driving 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 toward the lower cavity (i.e., translate in the front-back direction), so as to complete the inward folding of the non-buttoning edge 71 of the lower cloth 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.

[0177] like Fig.11 , Figure 13-15 As shown, the lower buckle edge push plate assembly 53 and the lower straight edge push plate assembly 54 are respectively arranged on the left and right sides of the lower cavity plate 51.

[0178] like Fig.13 As shown, the lower buckle edge push plate assembly 53 includes a lower buckle edge lifting drive source 533 connected to the lower table 23 through a lower buckle edge fixing bracket 536, and the lower buckle edge lifting drive source 533 is connected to the lower buckle edge lifting bracket 532, and is used to drive the lower buckle edge lifting bracket 532 to move up and down. The lower buckle edge lifting bracket 532 is sequentially connected with a lower buckle edge guide drive source 534, a lower buckle edge push plate drive source 531 and a lower buckle edge push plate 535. The lower buckle edge guide drive source 534 and the lower buckle edge push plate drive source 531 can both drive the lower buckle edge push plate 535 to translate toward the lower cavity (i.e., translate in the left and right directions), so that the lower cloth piece folds inward against the buckle edge 72. Preferably, the lower buckle edge lifting drive source 533 is a screw motor, whose motor part is fixedly connected to the lower buckle edge fixing bracket 536, whose screw extends in the up and down directions, and whose screw nut is connected to the lower buckle edge lifting bracket 532. In order to guide the up and down movement of the lower buckle edge lifting bracket 532, a lower buckle edge slider 537 extending in the up and down direction is provided on the lower buckle edge fixing bracket 536, and a lower buckle edge guide rail slidably matched with the lower buckle edge slider 537 is provided on the lower buckle edge lifting bracket 532. The lower buckle edge guide driving source 534 and the lower buckle edge push plate driving source 531 are both cylinders, and the cylinder piston rod of the lower buckle edge guide driving source 534 is connected to the lower buckle edge push plate driving source 531, and the cylinder piston rod of the lower buckle edge push plate driving source 531 is connected to the lower buckle edge push plate 535.

[0179] like Fig.14 As shown, the lower straight edge push plate assembly 54 includes a lower straight edge push plate driving source 545 connected to the lower table 23 through a lower straight edge fixed bracket 544, and the lower straight edge push plate driving source 545 is connected to the lower straight edge push plate 541 through a lower straight edge push plate connecting block 542, and is used to drive the lower straight edge push plate 541 to translate toward the lower cavity (i.e., translate in the left and right direction) to press the lower cloth piece 7 placed in the lower cavity. Preferably, the lower straight edge push plate driving source 545 is a cylinder, and its cylinder piston rod is connected to the lower straight edge push plate 541 through the lower straight edge push plate connecting block 542. In order to guide the translation of the lower straight edge push plate 541 and avoid deflection, the lower straight edge push plate assembly 54 also includes a fixed lower straight edge guide rail 543, the lower straight edge guide rail 543 extends in the left and right direction, and the lower straight edge push plate connecting block 542 is slidably matched with the lower straight edge guide rail 543.

[0180] like Fig.11As shown, the lower mold cavity cloth stop assembly 55 includes a lower cloth stop block driving source 551 connected to the lower table 23 through a lower cloth stop bracket 553, and the lower cloth stop block driving source 551 is connected to the lower cloth stop block 552, and is used to drive the lower cloth stop block 552 to move up and down. A second slot 511 is also provided on the lower mold cavity plate 51, and the lower cloth stop block 552 can move upward and pass through the second slot 511 under the drive of the lower cloth stop block driving source 551, enter the lower mold cavity, and fold the lower cloth piece upward against the buckle edge 71. The lower cloth stop block driving source 551 is preferably a cylinder, and its cylinder piston rod is connected to the lower cloth stop block 552.

[0181] like Fig.15 As shown, the upper straight edge push plate assembly 42 and the lower buckle edge push plate assembly 53 are arranged opposite to each other in the upper and lower directions, 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 to each other in the upper and lower directions, and both are located on the same side of the upper cavity plate 433 and the lower cavity plate 51.

[0182] Combination Figure 1-16 It can be seen that the working process of the trouser waist folding device of the first embodiment is as follows:

[0183] Initial state: the cylinder piston rods of the first lifting drive source 31 and the second lifting drive source 111 are both in the extended state, and the third lifting drive source 113 makes the floating mounting plate 114 at the preset loading height. At this time, the distance between the upper cavity and the lower cavity is the preset distance, and the preset distance is specifically 30 mm.

[0184] Loading: manually place the lower cloth piece 7 in the lower cavity, and feed the upper cloth piece 6 into the upper cavity. At this time, the acupuncture drive source 437 drives the acupuncture block 432 to move downward, and the fixing needle 4321 passes through the upper cavity plate 433, enters the upper cavity and pierces the cloth piece 6, completing the fixing of the upper cloth piece 6. Then the cylinder piston rod of the cloth block drive source 451 extends, driving the upper cloth block 452 to move downward, and the upper cloth block 452 passes through the upper cavity, so that the buckle edge 61 of the upper cloth piece is bent downward.

[0185] The negative pressure mechanism works, and the lower cloth piece 7 is fixed in the lower cavity by suction 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 are extended, and then the cylinder piston rod of the lower side lifting drive source 524 is retracted, driving the lower side tongue plate 526 to press on the lower cloth piece 7.

[0186] Folding: The folding action of the upper folding unit is as follows: the cylinder piston rod of the upper straight edge push plate driving source 422 extends, and the upper straight edge push plate 424 enters the upper cavity; the cylinder piston rod of the upper fixed push plate driving source 442 retracts, and the upper fixed push plate 443 enters the upper cavity, and the two non-buckled edges 62 of the upper cloth piece are folded inward into the upper cavity. The cylinder piston rod of the upper buckle edge push plate driving source 413 extends, drives the upper buckle edge push plate 412 to translate toward the upper cavity, and folds the non-buckled side 611 of the buckle edge of the upper cloth piece inward into the upper cavity. The upper buckle edge lifting driving source 417 drives its screw rod to rotate, so that the upper buckle edge lifting bracket 415 moves to the set pre-folding height, and then the cylinder piston rod of the upper buckle edge tongue plate driving source 414 extends, drives the upper buckle edge tongue plate 411 to translate toward the upper cavity, and pre-folds the buckle side 612 of the buckle edge of the upper cloth piece inward into the upper cavity.

[0187] The folding action of the lower folding unit is as follows: the cylinder piston rod of the lower straight edge push plate driving source 545 extends, driving the lower straight edge push plate 541 to translate toward the lower cavity and press on the lower cloth piece 7. The cylinder piston rod of the lower side tongue plate driving source 521 retracts, driving the lower side tongue plate 526 to withdraw from the lower cavity. The cylinder piston rod of the lower cloth block driving source 551 extends, driving the lower cloth block 552 to move upward and pass through the lower cavity plate 51, so that the non-buttoning edge 71 of the lower cloth piece is bent upward. The cylinder piston rod of the lower side lifting drive source 524 extends out, driving the lower side tongue plate drive source 521 and the lower side push plate drive source 522 to move upward; the cylinder piston rods of the lower side tongue plate drive source 521 and the lower side push plate drive source 522 are both extended, respectively driving the lower side tongue plate 526 and the lower side push plate 525 to move horizontally toward the lower cavity, and the lower side tongue plate 526 and the lower side push plate 525 enter the lower cavity, folding the non-buttoning edge 71 of the lower cloth piece inward into the lower cavity. The folded state of the upper cloth piece 6 and the lower cloth piece 7 is shown in FIG. Fig.16 shown.

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

[0189] Pre-buckle: The third lifting drive source 113 drives its screw to rotate, so that the floating mounting plate 114 moves down to the pre-buckle height. The lower buckle edge lifting drive source 533 drives its screw to rotate, so that the lower buckle edge push plate 535 moves to the pre-folding height, and then the cylinder piston rod of the lower buckle edge push plate drive source 531 extends to drive the lower buckle edge push plate 535 to move toward the lower cavity, inserting the lower cloth piece buckle edge 72 into the gap formed by the folded upper cloth piece buckle edge buckle side 612, so that the lower cloth piece buckle edge 72 and the upper cloth piece buckle edge buckle side 612 are pre-buckled, as shown in FIG. Fig.17 shown.

[0190] Interlocking: The third lifting drive source 113 drives its screw rod to rotate, so that the floating mounting plate 114 moves up to the closing height. In this process, step 1) and step 2) are performed simultaneously:

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

[0192] 2) The lower buckle edge lifting drive source 533 drives its screw to rotate, so that the lower buckle 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 buckle edge guide drive source 534 extends to drive the lower buckle edge push plate 535 to completely enter the lower mold cavity.

[0193] At this point, the folding and interlocking of the trouser waist is completed. Fig.18 shown.

[0194] Furthermore, in order to simultaneously complete the folding and interlocking work of the left and right trouser waists and improve work efficiency, Figure 1 As shown, the upper folding mechanism 1 in the first embodiment includes two upper folding units, namely, an upper left folding unit 11 and an upper right folding unit 12 ; the lower folding mechanism 2 includes two lower folding units, namely, a lower left folding unit 21 and a lower right folding unit 22 .

[0195] The upper left folding unit 11 and the lower left folding unit 21 are arranged correspondingly up and down, and the upper right folding unit 12 and the lower right folding unit 22 are arranged correspondingly up and down. The upper left folding unit 11 and the upper right folding unit 12 have the same structure and working process, and the two are arranged symmetrically on the left and right; the lower left folding unit 21 and the lower right folding unit 22 have the same structure and working process, and the two are arranged symmetrically on the left and right.

[0196] Embodiment 2

[0197] like Fig.19 and Fig. 20 As shown, in order to facilitate the movement of the folded and interlocked trouser waist, the second embodiment is additionally provided with a pressing cavity moving mechanism 8 on the basis of the first embodiment. The pressing cavity moving mechanism 8 is arranged at the front side of the upper folding mechanism 1 and the lower folding mechanism 2, and includes a core translation driving source 84, a pressing moving bottom plate 83 connected to the core translation driving source 84, a folding core unit arranged on the pressing moving bottom plate 83, and a pressing unit connected to the pressing moving bottom plate 83. The core translation driving source 84 is used to drive the pressing moving bottom plate 83, the folding core unit and the pressing unit to translate synchronously along the front-back direction, approaching or moving away from the lower cavity plate 51. Each folding core unit includes a folding core 801 mounted on the pressing moving bottom plate 83 through a core bracket 802, and the folding core 801 is provided with a plurality of air suction holes that pass through from top to bottom. The pressing unit is arranged above the folding core unit, and includes a movable pressing plate, which can approach or move away from the folding core 801.

[0198] During operation, the core translation driving source 84 drives the pressing material moving bottom plate 83 to approach the lower cavity plate 51, so that the folding core 801 is placed in the lower cavity, and the air suction hole on the folding core 801 is connected with the negative pressure mechanism, and the lower cloth piece 7 can be fixed on the folding core 801 by negative pressure adsorption. At this time, the pressing plate is far away from the folding core 801, and will not interfere with the upper folding unit or the lower folding unit. After the upper folding unit and the lower folding unit work together to complete the folding and interlocking action of the trouser waist, the pressing plate moves down and presses the trouser waist tightly against the folding core 801, and then the core translation driving source 84 drives the pressing material moving bottom plate 83 away from the lower cavity plate 51, so that the folding core 801 exits the lower cavity, and the pressing and cavity material moving actions of the trouser waist are completed, waiting for the material taking mechanism to take the material, and continuing to complete the subsequent sewing work of the trouser waist.

[0199] As can be seen from the above, the trouser waist folding device of the second embodiment effectively eliminates the influence of the table gap between the lower cavity and the lower table 23 on the material transfer stability by providing the pressing cavity moving mechanism 8, thereby ensuring the smoothness and accuracy of the subsequent material transfer process.

[0200] In order to simultaneously complete the pressing and cavity material transfer actions for the left and right waistbands and improve work efficiency, the number of folding core units and pressing units in the second embodiment is two, including a lower left folding core unit 82 and a lower right folding core unit 81 arranged on the pressing moving bottom plate 83, a left pressing unit 820 arranged above the lower left folding core unit 82, and a right pressing unit 810 arranged above the lower right folding core unit 81, and the right pressing unit 810 is connected to the pressing moving bottom plate 83 through a pressing bracket 805. The lower left folding core unit 82 is located on the left side of the lower right folding core unit 81, and the lower left folding core unit 82 is arranged in front and back correspondence with the lower left folding unit 21, and the lower right folding core unit 81 is arranged in front and back correspondence with the lower right folding unit 22. The lower left folding core unit 82 also includes a material pressing translation driving source 803 arranged on the material pressing moving bottom plate 83, and a material pressing telescopic bottom plate 804 slidably arranged on the material pressing moving bottom plate 83. The core support 802 in the left material pressing unit 820 and the lower left folding core unit 82 are both arranged on the material pressing telescopic bottom plate 804. The material pressing telescopic bottom plate 804 is driven by the material pressing translation driving source 803 to translate along the left and right directions, approaching or moving away from the lower right folding core unit 81.

[0201] like Fig.21As shown, the left pressing unit 820 is installed on the pressing telescopic bottom plate 804 through the left pressing fixed bracket 826, and the left pressing fixed bracket 826 is provided with a pressing guide rail 822, and one end of the pressing guide rail 822 is provided with a left pressing translation driving source 821. The pressing guide rail 822 extends in the front-to-back direction, and the left pressing translation driving source 821 is connected to the floating joint connecting plate 828 through the pressing floating joint 827, and the floating joint connecting plate 828 is connected with the left pressing slider mounting plate 825, and the left pressing slider mounting plate 825 is slidably arranged on the pressing guide rail 822. The left pressing slider mounting plate 825 is also provided with a left pressing plate lifting driving source 823, and the left pressing plate lifting driving source 823 is used to drive the left pressing plate 824 to move up and down, and the left pressing translation driving source 821 is used to drive the left pressing plate lifting driving source 823 and the left pressing plate 824 to move forward and backward synchronously.

[0202] like Fig. 22 As shown, the right pressing unit 810 includes a right pressing unit lifting driving source 816 connected to the pressing bracket 805 through a right pressing fixing plate 818, and the right pressing unit lifting driving source 816 is used to drive the right pressing lifting connecting plate 817 to move up and down. The right pressing lifting connecting plate 817 is connected with a pressing guide rail 812 extending in the front-to-back direction, and the pressing slider mounting plate 813 is slidably arranged on the pressing guide rail 812. One end of the pressing guide rail 812 is provided with a right pressing translation driving source 811, and the right pressing translation driving source 811 is connected to the floating joint connecting plate 8191 through the pressing floating joint 819, and the floating joint connecting plate 8191 is connected to the pressing slider mounting plate 813. A right press plate lifting drive source 814 is also installed on the press slider mounting plate 813. The right press plate lifting drive source 814 is used to drive the right press plate 815 to move up and down. The right press translation drive source 811 is used to drive the right press plate lifting drive source 814 and the right press plate 815 to move forward and backward synchronously. The right press unit lifting drive source 816 is used to drive the right press translation drive source 811, the press plate lifting drive source 814 and the right press plate 815 to move up and down synchronously.

[0203] The above-mentioned core translation drive source 84, material pressing translation drive source 803, left material pressing translation drive source 821, right material pressing translation drive source 811, left material pressing plate lifting drive source 823, right material pressing plate lifting drive source 814 and right material pressing unit lifting drive source 816 are preferably selected from cylinders, and technical personnel in this field may also use a screw motor as a substitute.

[0204] Combination Figure 1-21 It can be seen that the working process of the trouser waist folding device of the second embodiment is as follows:

[0205] Initial state: The cylinder piston rods of the first lifting drive source 31 and the second lifting drive source 111 are both in an extended state, and the third lifting drive source 113 makes the floating mounting plate 114 at a preset loading height. At this time, the distance between the upper cavity and the lower cavity is a preset distance, which is specifically 30 mm. The cylinder piston rods of the core translation drive source 84 and the press translation drive source 803 are both in a retracted state, and the folding core 801 is in the lower cavity. The press plate is at the farthest distance from the folding core 801.

[0206] Loading: manually place the lower cloth piece 7 on the folding core 801, and feed the upper cloth piece 6 into the upper cavity. At this time, the acupuncture drive source 437 drives the acupuncture block 432 to move downward, and the fixing needle 4321 passes through the upper cavity plate 433, enters the upper cavity and pierces the cloth piece 6, completing the fixing of the upper cloth piece 6. Then the cylinder piston rod of the cloth block drive source 451 extends, driving the upper cloth block 452 to move downward, and the upper cloth block 452 passes through the upper cavity, so that the buckle edge 61 of the upper cloth piece is bent downward.

[0207] The negative pressure mechanism works, and the lower cloth piece 7 is fixed in the lower cavity by suction 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 are extended, and then the cylinder piston rod of the lower side lifting drive source 524 is retracted, driving the lower side tongue plate 526 to press on the lower cloth piece 7.

[0208] Folding: Same as the first embodiment.

[0209] Pre-withholding: Same as in the first embodiment.

[0210] Interlocking: Same as in Example 1.

[0211] Pressing material: the output end of the lifting driving source 431 passes through the through hole 4332 on the upper cavity plate 433, pressing the upper cloth piece 6 and the lower cloth piece 7 onto the folding core 801. Then the acupuncture driving source 437 drives the acupuncture block 432 to move upward, the upper cavity assembly 43 releases the fixation of the upper cloth piece 6, the cylinder piston rods of the lower buckle edge guide driving source 534, the upper buckle edge tongue plate driving source 414, the upper buckle edge guide driving source 416, the upper buckle edge push plate driving source 413, the upper straight edge push plate driving source 422, the lower side edge tongue plate driving source 521, the lower side edge push plate driving source 522, the lower straight edge push plate driving source 545, the upper cloth block driving source 451 and the lower cloth block driving source 551 are all retracted, and the cylinder piston rod of the upper fixed push plate driving source 442 is extended, and at this time, each push plate, tongue plate and cloth block in the upper folding unit and the lower folding unit are all withdrawn from the upper cavity or the lower cavity. The third lifting drive source 113 is reset, and at the same time, the upper buckle edge lifting drive source 417 and the lower buckle edge lifting drive source 533 are reset. Then the pressing plate presses the waistband on the folding core 801. The cylinder piston rods of the lifting drive source 431 and the first lifting drive source 31 are both retracted, and the pressing action is completed.

[0212] Cavity material shifting: The cylinder piston rod of the core translation driving source 84 extends out, driving the material pressing moving bottom plate 83 to move forward and away from the lower cavity plate 51, and the folding core 801 and the left material pressing plate 824 on the left, and the folding core 801 and the right material pressing plate 815 on the right respectively move the two trouser waists away from the lower cavity plate 51. Then the cylinder piston rod of the material pressing translation driving source 803 extends out, driving the material pressing telescopic bottom plate 804 to move right, that is, the folding core 801 and the left material pressing plate 824 on the left move right synchronously, and the distance between the left and right trouser waists is reduced to the sewing range of the pattern machine. At this point, the cavity material shifting action is completed, waiting for the material taking mechanism to take the material.

[0213] Reset: After the material taking mechanism has finished taking the material, the material holding plate is reset, the cylinder piston rod of the material holding translation driving source 803 is retracted, and then the cylinder piston rod of the core translation driving source 84 is retracted, and the folded core 801 is reset and placed in the lower cavity. The cylinder piston rods of the first lifting driving source 31 and the second lifting driving source 111 are both extended, and the third lifting driving source 113 drives its screw rod to rotate, driving the floating mounting plate 114 to the preset loading height.

[0214] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A trouser waist folding device, used for folding an upper cloth piece (6) and a lower cloth piece (7) of a trouser waist, characterized in that: It comprises an upper folding mechanism (1) and a lower folding mechanism (2); The upper folding mechanism (1) comprises an upper folding unit, the upper folding unit comprises a floating mounting plate (114) movable up and down, the floating mounting plate (114) being mounted with an upper buckle edge push plate assembly (41), an upper straight edge push plate assembly (42), an upper cavity assembly (43), an upper fixed push plate assembly (44) and an upper cavity cloth blocking assembly (45); the upper cavity assembly (43) comprises an upper cavity plate (433) mounted below the floating mounting plate (114), a needling drive source (437) connected to the floating mounting plate (114), and a needling block (432) movable up and down under the drive of the needling drive source (437); the upper cavity An upper cavity for accommodating the upper cloth piece (6) is provided at the bottom of the plate (433), and a fixing needle (4321) is provided at the lower end of the acupuncture block (432), and the fixing needle (4321) is penetrated through the upper cavity plate (433); when the acupuncture drive source (437) drives the acupuncture block (432) to move downward, the fixing needle (4321) enters the upper cavity to fix the upper cloth piece (6) by acupuncture; the upper cavity cloth-blocking assembly (45) and the upper buckle edge push plate assembly (41) are used to fold the buckle edge (61) of the upper cloth piece, and the upper straight edge push plate assembly (42) and the upper fixed push plate assembly (44) are used to fold the non-buckle edge (62) of the upper cloth piece; The lower folding mechanism (2) comprises a lower folding unit, which is arranged below the upper folding unit and comprises a lower cavity plate (51), a lower side edge push plate assembly (52), a lower buckle edge push plate assembly (53), a lower straight edge push plate assembly (54) and a lower cavity cloth stop assembly (55). The top of the lower cavity plate (51) is provided with a lower cavity for accommodating the lower cloth piece (7). The lower cavity is arranged opposite to the upper cavity up and down and is connected to the negative pressure mechanism for negative pressure adsorption and fixation of the lower cloth piece (7); the lower cavity cloth stop assembly (55) and the lower side edge push plate assembly (52) are used to fold the non-buckled edge (71) of the lower cloth piece, the lower buckle edge push plate assembly (53) is used to fold the buckled edge (72) of the lower cloth piece, and the lower straight edge push plate assembly (54) is used to limit the lower cloth piece (7).

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

3. The trouser waist folding device according to claim 1, characterized in that: The upper folding mechanism (1) further comprises a first lifting drive source (31), wherein the first lifting drive source (31) is used to drive the upper folding unit to move up and down.

4. The trouser waist folding device according to claim 1, characterized in that: The upper folding unit comprises 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).

5. The trouser waist folding device according to claim 4, characterized in that: The upper folding unit further comprises a lifting floating plate (112) connected to the second lifting driving source (111), and a third lifting driving source (113) mounted on the floating mounting plate (114), wherein the third lifting driving source (113) is connected to the lifting floating plate (112).

6. The trouser waist folding device according to claim 1, characterized in that: A needling guide block (434) is provided on the top of the upper cavity plate (433), and the needling guide block (434) has an inclined surface. The needling block (432) is slidably arranged on the inclined surface, and an angle is formed between the fixed needle (4321) and the lower surface of the upper cavity plate (433); the needling drive source (437) is connected to a needling pressure block (435), and the needling pressure block (435) is in contact with the needling block (432).

7. The trouser waist folding device according to claim 1, characterized in that: The upper cavity assembly (43) further comprises a lifting driving source (431) connected to the floating mounting plate (114); the upper cavity plate (433) is provided with a through hole (4332) connected to the upper cavity; the output end of the lifting driving source (431) can pass through the through hole (4332) to press the upper cloth sheet (6) against the lower cloth sheet (7).

8. The trouser waist folding device according to claim 1, characterized in that: The upper buckle edge push plate assembly (41) comprises an upper buckle edge push plate driving source (413) and an upper buckle edge lifting driving source (417) respectively connected to the floating mounting plate (114); the upper buckle edge push plate driving source (413) is connected to the upper buckle edge push plate (412); the upper buckle edge lifting driving source (417) is sequentially connected to an upper buckle edge guide driving source (416), an upper buckle edge tongue plate driving source (414) and an upper buckle edge tongue plate (411).

9. The trouser waist folding device according to claim 1, characterized in that: The upper mold cavity cloth stop assembly (45) and the lower mold cavity cloth stop assembly (55) both include a cloth stop block driving source and a cloth stop block that moves up and down under the drive of the cloth stop block driving source. The cloth stop block can pass through the upper mold cavity plate (433) or the lower mold cavity plate (51) to enter the upper mold cavity or the lower mold cavity.

10. The trouser waist folding device according to claim 1, characterized in that: The lower side push plate assembly (52) comprises 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) which 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).

11. The trouser waist folding device according to claim 1, characterized in that: The lower buckle edge push plate assembly (53) comprises a lower buckle edge lifting drive source (533), a lower buckle edge guide drive source (534) connected in sequence to the lower buckle edge lifting drive source (533), a buckle edge push plate drive source (531) and a lower buckle edge push plate (535).

12. The trouser waist folding device according to claim 1, characterized in that: The upper straight-side push plate assembly (42), the upper fixed push plate assembly (44) and the lower straight-side push plate assembly (54) all include a push plate driving source, and the push plate driving source is connected to the push plate.

13. The trouser waist folding device according to claim 1, characterized in that: The trouser waist folding device also includes a pressing cavity moving mechanism (8), the pressing cavity moving mechanism (8) including a core translation driving source (84), a pressing moving bottom plate (83) connected to the core translation driving source (84), a folding core unit arranged on the pressing moving bottom plate (83), and a pressing unit connected to the pressing moving bottom plate (83), the core translation driving source (84) is used to drive the pressing moving bottom plate (83) to approach or move away from the lower cavity plate (51), the folding core unit includes a folding core (801) installed on the pressing moving bottom plate (83), and the folding core (801) is provided with a plurality of air suction holes; the pressing unit is arranged above the folding core unit, and includes a movable pressing plate, and the pressing plate can approach or move away from the folding core (801).

14. The trouser waist folding device according to claim 13, characterized in that: The number of the folding core units and the pressing units is two, including a lower left folding core unit (82) and a lower right folding core unit (81) arranged on the pressing moving bottom plate (83), a left pressing unit (820) arranged above the lower left folding core unit (82), and a right pressing unit (810) arranged above the lower right folding core unit (81); the lower left folding core unit (82) also includes a pressing translation driving source (803) arranged on the pressing moving bottom plate (83), and a pressing telescopic bottom plate (804) slidably arranged on the pressing moving bottom plate (83); the folding cores (801) of the left pressing unit (820) and the lower left folding core unit (82) are both arranged on the pressing telescopic bottom plate (804); the pressing telescopic bottom plate (804) approaches or moves away from the lower right folding core unit (81) under the drive of the pressing translation driving source (803).

Images