A trouser waist automatic folding and interlocking device and method

Abstract

The present invention provides an automatic folding and interlocking device for trouser waist, comprising an upper folding mechanism, a lower folding mechanism and an upper folding and feeding mechanism; the upper folding mechanism comprises an upper folding unit, the upper folding unit comprises a floating mounting plate movable up and down, and an upper buckle edge push plate assembly, an upper straight edge push plate assembly, an upper cavity assembly, an upper fixed push plate assembly, an upper cavity cloth stop assembly, an upper edge expansion assembly and an upper clamp assembly are mounted on the floating mounting plate; the lower folding mechanism comprises a lower folding unit, the lower folding unit is arranged below the upper folding unit, and comprises a lower cavity plate, a lower side edge push plate assembly, a lower buckle edge push plate assembly, a lower straight edge push plate assembly and a lower cavity cloth stop assembly; the upper folding and feeding mechanism comprises an upper folding and feeding unit, and the upper folding and feeding unit comprises an avoidance drive assembly, an upper folding and feeding drive source transmission-connected to the avoidance drive assembly, and an upper folding and feeding plate transmission-connected to the upper folding and feeding drive source. The present invention also provides an automatic folding and interlocking method for trouser waist.

Description

Technical Field

[0001] The invention relates to the technical field of cloth piece folding, and in particular to a trouser waist automatic folding and interlocking device and method. 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, an object of the present invention is to provide an automatic folding and interlocking device for trouser waist, which can automatically complete the folding and interlocking of trouser waist.

[0004] The present invention provides an automatic folding and interlocking device for folding the upper and lower cloth pieces of the trouser waist, which comprises an upper folding mechanism, a lower folding mechanism and an upper folding feeding mechanism; the upper folding mechanism comprises an upper folding unit, the upper folding unit comprises a floating mounting plate which can be moved up and down, an upper buckle edge push plate assembly, an upper straight edge push plate assembly, an upper cavity assembly, an upper fixed push plate assembly, an upper cavity cloth stop assembly, an upper edge expansion assembly and an upper clamp assembly are mounted on the floating mounting plate; the upper cavity assembly comprises an upper cavity plate mounted below the floating mounting plate, an upper cavity plate having an upper cavity for accommodating the upper cloth piece at the bottom, and the upper cloth piece can be detachably mounted on the upper cavity; the upper cavity cloth stop assembly and the upper buckle edge push plate assembly are used to Fold the buckled edge of the upper cloth piece, the upper straight edge push plate assembly and the upper fixed push plate assembly are used to fold the non-buckled edge of the upper cloth piece; the upper edge expanding assembly is used to shape the gap formed by folding the buckled edge of the upper cloth piece; the upper clamp assembly is used to place the trouser placket between the upper cloth piece and the lower cloth piece; the lower folding mechanism includes a lower folding unit, and the lower folding unit is arranged below the upper folding unit, and includes a lower cavity plate, a lower side edge push plate assembly, a lower buckled edge push plate assembly, a lower straight edge push plate assembly and a lower cavity cloth stop assembly, and the top of the lower cavity plate is provided with a lower cavity for accommodating the lower cloth piece, and the lower cavity is arranged opposite to the upper cavity up and down, and is connected with the negative pressure mechanism, and is used for negative pressure adsorption and fixation of the lower cloth piece ; The lower cavity cloth stop assembly and the lower side edge push plate assembly are used to fold the first non-locking edge of the lower cloth piece, and the lower buckle edge push plate assembly is used to fold the buckle edge of the lower cloth piece; the lower straight edge push plate assembly (54) is used to limit the lower cloth piece (7); the upper buckle edge push plate assembly includes an upper buckle edge push plate driving source, an upper buckle edge push plate connected to the upper buckle edge push plate driving source, an upper buckle edge lifting driving source, an upper buckle edge guide driving source connected to the upper buckle edge lifting driving source, an upper buckle edge tongue plate driving source connected to the upper buckle edge guide driving source, and an upper buckle edge tongue plate connected to the upper buckle edge tongue plate driving source; the upper straight edge push plate assembly, the upper fixed push plate assembly and the lower straight edge push plate assembly all include a push plate driving source, a and a push plate drivingly connected to a push plate driving source; the upper cavity cloth blocking assembly and the lower cavity cloth blocking assembly both include a cloth blocking block driving source and a cloth blocking block that moves up and down under the drive of the cloth blocking block driving source, and the cloth blocking block can pass through the upper cavity plate or the lower cavity plate to enter the upper cavity or the lower cavity; the upper edge expansion assembly includes an upper edge expansion rod, an upper edge expansion rod first driving source for driving the upper edge expansion rod to approach or move away from the upper cavity assembly, and an upper edge expansion rod second driving source for driving the upper edge expansion rod to translate along the extension direction of the gap; the upper clamp assembly includes a clamp jaw, an upper clamp translation driving source for driving the clamp jaw to translate, and an upper clamp lifting driving source for driving the clamp jaw to move up and down;The lower side push plate assembly includes a lower side limiting driving source, a lower side lifting driving source, and a lower side tongue plate driving source and a lower side push plate driving source that move up and down synchronously under the drive of the lower side lifting driving source. The lower side tongue plate driving source is transmission-connected to the lower side tongue plate, and the lower side push plate driving source is transmission-connected to the lower side push plate; the lower side limiting driving source is arranged between the lower side tongue plate and the lower cavity, which is used to limit the stroke of the lower side tongue plate; the lower buckle side push plate assembly includes a lower buckle side lifting driving source, a lower buckle side guide driving source transmission-connected to the lower buckle side lifting driving source, and a lower buckle side push plate driving source transmission-connected to the lower buckle side guide driving source The upper folding feeding mechanism comprises an upper folding feeding unit arranged below the upper cavity assembly, the upper folding feeding unit comprises an avoidance driving assembly, an upper folding feeding driving source connected to the avoidance driving assembly, and an upper folding feeding plate connected to the upper folding feeding driving source, and a plurality of feeding needles are arranged on the top of the upper folding feeding plate; the avoidance driving assembly is used to drive the upper folding feeding driving source and the upper folding feeding plate to approach or move away from the upper cavity assembly at the same time, and the upper folding feeding driving source is used to drive the upper folding feeding plate to enter or exit the upper cavity. ;

[0005] Preferably, the upper cavity assembly also includes a needling drive source, and a needling block that moves up and down driven by the needling drive source, and a fixed needle is provided at the lower end of the needling block, and the fixed needle is passed through the upper cavity plate; when the needling drive source drives the needling block to move downward, the fixed needle enters the upper cavity to fix the upper cloth piece by needling.

[0006] 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.

[0007] Preferably, the upper mold cavity is connected to a negative pressure mechanism for fixing the upper cloth piece by negative pressure adsorption.

[0008] Preferably, the upper cavity assembly also includes a lifting drive source transmission-connected to the floating mounting plate, the upper cavity plate is provided with a through hole communicating with the upper cavity, 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.

[0009] 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 translate simultaneously.

[0010] Preferably, it also includes a pressing cavity moving mechanism, which includes a core translation driving source, a pressing cavity moving base plate transmission-connected to the core translation driving source, a folding core unit arranged on the pressing cavity moving base plate, and a pressing unit transmission-connected to the pressing cavity moving base plate, the core translation driving source is used to drive the pressing cavity moving base plate to approach or move away from the lower cavity plate, the folding core unit includes a folding core mounted 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, and the pressing plate can approach or move away from the folding core.

[0011] 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.

[0012] Preferably, the upper folding mechanism includes two upper folding units, the lower folding mechanism includes two lower folding units, and the upper folding feeding mechanism includes two upper folding feeding units.

[0013] The present invention also provides a method for automatically folding and interlocking a trouser waist, using the aforementioned automatic folding and interlocking device for a trouser waist, and the method for automatically folding and interlocking a trouser waist comprises the following steps:

[0014] Loading: placing the lower cloth piece on the lower cavity, placing the upper cloth piece on the upper folding feed plate, and placing the trouser placket on the clamping claw; the upper folding feed driving source drives the upper folding feed plate to move up, and feeds the upper cloth piece into the upper cavity, and the upper cavity assembly removes the upper cloth piece, and the upper folding feed driving source drives the upper folding feed plate to move down, and the upper cloth piece is separated from the feeding needle, and the avoidance driving assembly drives the upper folding feed plate away from the upper cavity assembly; the cloth stop block driving source of the upper cavity cloth stop assembly drives its cloth stop block to move downward, and the cloth stop block passes through the upper cavity, so that the buckle edge of the upper cloth piece is bent downward; the lower cloth piece is adsorbed and fixed in the lower cavity due to the negative pressure, and the lower side edge push plate assembly drives the lower side edge tongue plate to press on the lower cloth piece;

[0015] The upper folding unit folds: the push plate driving sources of the upper straight edge push plate assembly and the upper fixed push plate assembly drive the push plates of the two to translate toward the upper cavity, so that the non-buckled edge of the upper cloth piece is folded inwardly; the clamping claws close and clamp the trouser placket, so that the trouser placket is tightly attached to the bottom of the non-buckled edge of the upper cloth piece; the upper buckle edge push plate driving source drives the upper buckle edge push plate to translate toward the upper cavity, so that the non-buckled side of the buckle edge of the upper cloth piece is folded inwardly; the upper buckle edge lifting driving source drives the upper buckle edge tongue plate driving source to move to the pre-folding height, and the upper buckle edge tongue plate driving source drives the upper buckle edge tongue plate to translate toward the upper cavity, so that the buckle side of the buckle edge of the upper cloth piece is pre-folded inwardly; the upper edge expanding assembly drives the upper edge expanding rod to enter the gap to shape the gap, and then the upper edge expanding assembly drives the upper edge expanding rod to reset;

[0016] The folding unit folds: the push plate driving source of the lower straight edge push plate assembly drives its push plate to press on the lower cloth piece, and the lower side push plate assembly drives the lower side tongue plate to exit the lower cavity; the cloth stop block driving source of the lower cavity cloth stop assembly drives its cloth stop block to move upward, and the cloth stop block passes through the lower cavity, so that the first non-locking edge of the lower cloth piece is bent upward; the lower side lifting driving source drives the lower side tongue plate driving source and the lower side push plate driving source to move upward, and the lower side tongue plate driving source and the lower side push plate driving source respectively drive the lower side tongue plate and the lower side push plate to translate toward the lower cavity, and the lower side push plate enters the lower cavity, and at the same time, the lower side limit driving source limits the stroke of the lower side tongue plate, so that the lower side tongue plate partially enters the lower cavity, and the first non-locking edge of the lower cloth piece is folded inward;

[0017] Pre-buckle: the floating mounting plate moves down to the pre-buckle height, the lower buckle edge lifting driving source drives the lower buckle edge push plate to move to the pre-folding height, and the lower buckle edge push plate driving source drives the lower buckle edge push plate to translate toward the lower cavity, inserting the buckle edge of the lower cloth piece into the slit, so that the buckle edge of the lower cloth piece and the buckle edge of the upper cloth piece are pre-buckled;

[0018] Interlocking: the floating mounting plate moves up to the closing height; during the process of the floating mounting plate moving up, the upper buckle edge lifting drive source drives the upper buckle edge tongue plate to move to the same height as the upper buckle edge push plate, and the upper buckle edge guide drive source drives the upper buckle edge tongue plate to completely enter the upper cavity; at the same time, the lower buckle edge lifting drive source drives the lower buckle edge push plate to move to the same height as the lower straight edge push plate, and the lower buckle edge guide drive source drives the lower buckle edge push plate to completely enter the lower cavity.

[0019] The invention is beneficial in that: by providing an upper folding mechanism, a lower folding mechanism and an upper folding feeding mechanism, the upper and lower fabric pieces of the trouser waist can be folded, pre-fastened and interlocked in sequence, realizing the automatic folding and interlocking of the trouser waist, replacing the traditional manual folding and interlocking through automation, effectively reducing the time and manpower consumed, greatly improving the production efficiency of the trouser waist, and reliably ensuring the sewing quality of jeans. In addition, the invention reliably realizes the folding and interlocking of the upper and lower fabric pieces, making the processed products more stable, the process controllable, and the shape more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The automatic trouser waist folding and interlocking device of the present invention is a three-dimensional Figure 1 ;

[0021] Figure 2 The automatic trouser waist folding and interlocking device of the present invention is a three-dimensional Figure 2 (Remove the pressing cavity moving mechanism);

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

[0023] Figure 4 is a three-dimensional diagram of the upper folding unit;

[0024] Figure 5 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, the upper cavity cloth blocking assembly, the upper edge expanding assembly and the upper clamp assembly;

[0025] Figure 6 is a stereoscopic view of the upper buckle side push plate assembly;

[0026] Figure 7 is a perspective view of the upper straight edge push plate assembly;

[0027] Figure 8 is a three-dimensional diagram of the first embodiment of the upper cavity assembly;

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

[0029] Fig.10 is a three-dimensional diagram of the upper fixed push plate assembly;

[0030] Fig.11 is a three-dimensional diagram of the upper cavity baffle assembly;

[0031] Fig.12 is a stereogram of the upper edge expansion assembly;

[0032] Fig.13 is a perspective view of the upper clamp assembly;

[0033] Fig.14 is a three-dimensional diagram of the lower folding mechanism;

[0034] Fig.15 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;

[0035] Fig.16 is a three-dimensional view of the lower side push plate assembly;

[0036] Fig.17 is a stereoscopic view of the lower buckle side push plate assembly;

[0037] Fig.18 is a perspective view of the lower straight edge push plate assembly;

[0038] Fig.19 Schematic diagram of the relative positions of the upper left folding unit, the lower left folding unit and the upper left folding feeding unit;

[0039] Fig. 20 is a three-dimensional diagram of the upper folding feeding unit;

[0040] Fig.21 It is a three-dimensional diagram of the moving mechanism of the pressing cavity;

[0041] Fig. 22 It is a stereogram of the left pressing unit;

[0042] Fig.23 It is a three-dimensional diagram of the right pressing unit.

[0043] Fig.24 It is a diagram of the folded state of the upper and lower cloth pieces;

[0044] Fig.25 It is a diagram of the pre-buttoned state of the upper and lower fabric pieces;

[0045] Fig.26 This is a diagram of the upper and lower fabric pieces being folded and interlocked.

[0046] Component number description:

[0047] 1 Upper folding mechanism

[0048] 11 Upper left folding unit

[0049] 111 Second lifting drive source

[0050] 112 Lifting Floating Plate

[0051] 113 Third lifting drive source

[0052] 114 Floating mounting plate

[0053] 12 Upper right folding unit

[0054] 2 Lower folding mechanism

[0055] 21 Lower left folding unit

[0056] 22 Lower right folding unit

[0057] 23 Lower table

[0058] 31 First lifting drive source

[0059] 32 Upper folding fixing plate

[0060] 33 Upper folding lift plate

[0061] 41 Upper buckle side push plate assembly

[0062] 411 Upper buckle tongue plate

[0063] 412 Upper buckle side push plate

[0064] 413 Upper buckle side push plate drive source

[0065] 414 Upper buckle tongue plate drive source

[0066] 415 Upper buckle edge lifting bracket

[0067] 416 Upper buckle edge guide drive source

[0068] 417 Upper buckle edge lifting drive source

[0069] 419 Upper buckle edge fixing plate

[0070] 42 Upper straight edge push plate assembly

[0071] 421 Upper straight edge fixing plate

[0072] 422 Upper straight edge push plate drive source

[0073] 423 Upper straight edge connecting plate

[0074] 424 Upper straight edge push plate

[0075] 43 Upper cavity assembly

[0076] 431 Lifting drive source

[0077] 432 Acupuncture Block

[0078] 4321 Fixed needle

[0079] 433 Upper cavity plate

[0080] 4331 First slot

[0081] 4332 Through Hole

[0082] 434 Acupuncture Guide Block

[0083] 435 Acupuncture Briquetting

[0084] 436 Extension Spring

[0085] 437 Acupuncture drive source

[0086] 439 Acupuncture Machine

[0087] 44 Upper fixed push plate assembly

[0088] 441 Upper fixed push plate bracket

[0089] 442 Upper fixed push plate drive source

[0090] 443 Upper fixed push plate

[0091] 444 Upper fixed connecting plate

[0092] 45 Upper cavity stopper assembly

[0093] 451 Upper cloth block drive source

[0094] 452 Upper baffle

[0095] 453 Upper cloth support bracket

[0096] 46 Upper edge expansion assembly

[0097] 461 Upper expansion bracket

[0098] 462 Upper expansion connection bracket

[0099] 463 Upper expansion rod first driving source

[0100] 464 Upper expansion rod

[0101] 465 Upper expansion rod second drive source

[0102] 466 Upper expansion connecting plate

[0103] 467 Upper expansion rail

[0104] 47 Upper clamp assembly

[0105] 471 Upper clamp translation drive source

[0106] 472 Upper clamp lifting connecting plate

[0107] 473 Clamping jaws

[0108] 474 Lower jaw

[0109] 475 Upper jaw

[0110] 476 Upper clamp connecting plate

[0111] 477 Upper clamp lifting drive source

[0112] 478 Upper clamp fixing plate

[0113] 511 Second slot

[0114] 52 Lower side push plate assembly

[0115] 521 Lower side tongue plate drive source

[0116] 522 Lower side push plate drive source

[0117] 523 Lower side push plate drive source mounting plate

[0118] 524 Lower side lifting drive source

[0119] 525 Lower side push plate

[0120] 526 Lower side tongue plate

[0121] 5261 Lower side tongue plate connection plate

[0122] 527 Lower side limit drive source

[0123] 53 Lower buckle side push plate assembly

[0124] 531 Lower buckle side push plate drive source

[0125] 532 Lower buckle edge lifting bracket

[0126] 533 Lower buckle edge lifting drive source

[0127] 534 Lower buckle edge guide drive source

[0128] 535 buckle side push plate

[0129] 536 Lower buckle edge fixing bracket

[0130] 537 Lower buckle edge slider

[0131] 54 Lower straight edge push plate assembly

[0132] 541 Lower straight edge push plate

[0133] 542 Lower straight edge push plate connection block

[0134] 543 Lower straight edge guide rail

[0135] 544 Lower straight edge fixing bracket

[0136] 545 Lower straight edge push plate drive source

[0137] 55 Lower cavity baffle assembly

[0138] 551 Lower cloth block drive source

[0139] 552 Lower baffle

[0140] 553 Lower cloth bracket

[0141] 6 pieces of cloth

[0142] 61 Upper fabric button edge

[0143] 611 Upper fabric piece buckle side non-buckle side

[0144] 612 Upper fabric buckle side buckle side

[0145] 62 Non-buttoned edge of upper fabric

[0146] 7 Lower fabric

[0147] 71 First non-buttoned edge of lower fabric

[0148] 72 Lower fabric button edge

[0149] 73 Second non-buttoned edge of lower fabric

[0150] 8 Upper folding feeding mechanism

[0151] 81 Upper folding feeding bracket

[0152] 82 Upper folding feeding drive source

[0153] 83 First upper folding avoidance drive source

[0154] 84 Upper folding feeding connecting plate

[0155] 85 Second upper folding avoidance drive source

[0156] 86 Upper folding feeding bottom plate

[0157] 87 Upper folding feed guide

[0158] 88 Upper folding feed plate

[0159] 89 Feed pin

[0160] 801 Upper left folding feeding unit

[0161] 802 Upper right folding feeding unit

[0162] 9 Pressing cavity moving mechanism

[0163] 91 Right lower folding core unit

[0164] 92 Lower left folding core unit

[0165] 93 Pressing material moving bottom plate

[0166] 94 Core translation drive source

[0167] 901 Folding Core

[0168] 902 Core Bracket

[0169] 903 Pressing translation drive source

[0170] 904 Pressing telescopic bottom plate

[0171] 905 Pressing bracket

[0172] 910 Right pressing unit

[0173] 911 Right pressing translation drive source

[0174] 912 Pressing guide rail

[0175] 913 Press Slider Mounting Plate

[0176] 914 Right pressing plate lifting drive source

[0177] 915 Right pressure plate

[0178] 916 Right pressing unit lifting drive source

[0179] 917 Right press lifting connecting plate

[0180] 918 Right pressure fixing plate

[0181] 919 Pressed Floating Joint

[0182] 9191 Floating joint connection plate

[0183] 920 Left pressing unit

[0184] 921 Left pressing translation drive source

[0185] 922 Pressing guide rail

[0186] 923 Left pressing plate lifting drive source

[0187] 924 Left pressure plate

[0188] 925 Left pressure slide mounting plate

[0189] 926 Left pressure fixing bracket

[0190] 927 Pressed Floating Joint

[0191] 928 Floating joint connection plate DETAILED DESCRIPTION

[0192] 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.

[0193] 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.

[0194] 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.

[0195] Figure 2 The figure shows a three-dimensional diagram of the automatic folding and interlocking device for trouser waist of the present invention. Figure 2 In the following description, Figure 2Taking 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.

[0196] like Figure 1 and Figure 2 As shown, the present invention provides an automatic folding and interlocking device for trouser waist, which is used to fold the upper cloth piece and the lower cloth piece of the trouser waist, and comprises an upper folding mechanism 1, a lower folding mechanism 2 and an upper folding feeding mechanism 8.

[0197] like Fig.24 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 first 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, and the long straight side located on the other side of the left and right sides of the lower fabric piece 7 is the lower fabric piece second non-buttoning side 73. Among them, the lower fabric piece second non-buttoning side 73 is arranged on one side of the lower fabric piece 7 close to the upper fabric piece buttoning side non-buttoning side 611, and 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.

[0198] like Figure 4-13 As shown, the upper folding mechanism 1 includes an upper folding unit, which includes a floating mounting plate 114 that can move up and down, and the floating mounting plate 114 is equipped 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, an upper cavity cloth stop assembly 45, an upper edge expansion assembly 46 and an upper clamp assembly 47. The upper cavity assembly 43 includes an upper cavity plate 433 installed below the floating mounting plate 114, and an upper cavity is provided at the bottom of the upper cavity plate 433 for accommodating an upper cloth piece 6, and the upper cloth piece 6 can be detachably installed in the upper cavity; the upper cavity cloth stop assembly 45 and the upper buckle edge push plate assembly 41 are used to fold the buckle edges 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 two non-buckle edges 62 of the upper cloth piece; the upper edge expansion assembly 46 is used to shape the gap formed by the folded buckle edges 61 of the upper cloth piece; the upper clamp assembly 47 is used to place the trouser placket between the upper cloth piece 6 and the lower cloth piece 7.

[0199] like Figure 14-19As shown, the lower folding mechanism 2 includes a lower folding unit, which is arranged below the upper folding unit, and includes 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. A lower cavity for accommodating the lower cloth piece 7 is provided on the top of the lower cavity plate 51, and the lower cavity is arranged opposite to the upper cavity up and down, and is connected to the negative pressure mechanism, and is used for negative pressure adsorption and fixing 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 first non-buckled edge 71 of the lower cloth piece, the lower buckle edge push plate assembly 53 is used to fold the buckle 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.

[0200] like Figure 6 As shown, the upper buckle side push plate assembly 41 includes an upper buckle side push plate driving source 413, an upper buckle side push plate 412 drivingly connected to the upper buckle side push plate driving source 413, an upper buckle side lifting driving source 417, an upper buckle side guide driving source 416 drivingly connected to the upper buckle side lifting driving source 417, an upper buckle side tongue plate driving source 414 drivingly connected to the upper buckle side guide driving source 416, and an upper buckle side tongue plate 411 drivingly connected to the upper buckle side tongue plate driving source 414.

[0201] like Figure 7 , Fig.10 and Fig.18 As shown, 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 a push plate drivingly connected to the push plate driving source.

[0202] like Fig.11 and Fig.15 As shown, the upper cavity cloth stop assembly 45 and the lower cavity cloth stop assembly 55 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. The cloth stop block can pass through the upper cavity plate 433 or the lower cavity plate 51 to enter the upper cavity or the lower cavity.

[0203] like Fig.12 As shown, the upper edge expanding assembly 46 includes an upper edge expanding rod 464, an upper edge expanding rod first driving source 463 for driving the upper edge expanding rod 464 to move closer to or away from the upper cavity assembly 43, and an upper edge expanding rod second driving source 465 for driving the upper edge expanding rod 464 to translate along the extension direction of the gap formed by the folded upper cloth piece against the buckle edge 61.

[0204] like Fig.13 As shown, the upper clamp assembly 47 includes a clamp jaw 473, an upper clamp translation driving source 471 for driving the clamp jaw 473 to translate, and an upper clamp lifting driving source 477 for driving the clamp jaw 473 to move up and down.

[0205] like Fig.16As shown, the lower side push plate assembly 52 includes a lower side limiting drive source 527, 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 transmission connected to the lower side tongue plate 526, and the lower side push plate drive source 522 is transmission connected to the lower side push plate 525; the lower side limiting drive source 527 is arranged between the lower side tongue plate 526 and the lower cavity, and its output end is used to limit the stroke of the lower side tongue plate 526.

[0206] like Fig.17 As shown, the lower buckle edge push plate assembly 53 includes a lower buckle edge lifting drive source 533, a lower buckle edge guide drive source 534 transmission-connected to the lower buckle edge lifting drive source 533, a lower buckle edge push plate drive source 531 transmission-connected to the lower buckle edge guide drive source 534, and a lower buckle edge push plate 535 transmission-connected to the lower buckle edge push plate drive source 531.

[0207] like Fig. 20 As shown, the upper folding feeding mechanism 8 includes an upper folding feeding unit arranged below the upper cavity assembly 43, the upper folding feeding unit includes a avoidance driving assembly, an upper folding feeding driving source 82 transmission-connected to the avoidance driving assembly, and an upper folding feeding plate 88 transmission-connected to the upper folding feeding driving source 82, and a plurality of feeding needles 89 are provided on the top of the upper folding feeding plate 88; the avoidance driving assembly is used to drive the upper folding feeding driving source 82 and the upper folding feeding plate 88 to approach or move away from the upper cavity assembly 43 at the same time, and the upper folding feeding driving source 82 is used to drive the upper folding feeding plate 88 to enter or exit the upper cavity.

[0208] The present invention also provides a method for automatically folding and interlocking a trouser waist, which uses the aforementioned automatic folding and interlocking device for a trouser waist. The method for automatically folding and interlocking a trouser waist comprises the following steps:

[0209] Loading: place the lower cloth piece 7 in the lower cavity, place the upper cloth piece 6 on the upper folding feed plate 88, and place the trouser placket on the clamp claw 473; the upper folding feed drive source 82 drives the upper folding feed plate 88 to move upward, and the upper cloth piece 6 is fed into the upper cavity, and the upper cavity assembly 43 removes the upper cloth piece 6, and the upper folding feed drive source 82 drives the upper folding feed plate 88 to move downward, and the upper cloth piece 6 is separated from the feed needle 89, and the avoidance drive assembly drives the upper folding feed plate 88 away from the upper cavity assembly 43; the cloth stop block drive source of the upper cavity cloth stop assembly 45 drives its cloth stop block to move downward, and the cloth stop block passes through the upper cavity, so that the upper cloth piece is bent downward against the buckle edge 61; the lower cloth piece 7 is adsorbed and fixed in the lower cavity due to the negative pressure, and the lower side push plate assembly 52 drives the lower side tongue plate 526 to press on the lower cloth piece 7.

[0210] The upper folding unit folds: the push plate driving sources of the upper straight edge push plate assembly 42 and the upper fixed push plate assembly 44 drive the push plates of the two to translate toward the upper cavity, and fold the two upper cloth piece non-buttoning edges 62 inward; the clamping claws 473 close and clamp the trouser placket, so that the trouser placket is closely attached to the bottom of the upper cloth piece non-buttoning edge 62 adjacent to the upper cloth piece non-buttoning side 611; the upper buckle edge push plate driving source 413 drives the upper buckle edge push plate 412 to translate toward the upper cavity, and the upper cloth piece non-buttoning side 611 is folded inward. 11 is folded inward; the upper buckle edge lifting drive source 417 drives the upper buckle edge tongue plate drive source 414 to move to the pre-folding height, and the upper buckle edge tongue plate drive source 414 drives the upper buckle edge tongue plate 411 to translate toward the upper cavity, and pre-folds the buckle edge and buckle side 612 of the upper cloth piece inward; the upper edge expansion component 46 drives the upper edge expansion rod 464 to enter the gap formed by the buckle edge and buckle side 612 of the folded upper cloth piece, and reshapes the shape of the gap, and then the upper edge expansion component 46 drives the upper edge expansion rod 464 to reset.

[0211] The lower folding unit folds: the push plate driving source of the lower straight edge push plate assembly 54 drives its push plate to press on the lower cloth piece 7, and the lower side push plate assembly 52 drives the lower side tongue plate 526 to exit the lower cavity; the cloth block driving source of the lower cavity cloth blocking assembly 55 drives its cloth block to move upward, and the cloth block passes through the lower cavity, so that the first non-locking edge 71 of the lower cloth piece is bent upward; the lower side lifting driving source 524 drives the lower side tongue plate driving source 521 and the lower side push plate driving source 522 to move upward, and the lower side tongue plate driving source 521 and the lower side push plate driving source 522 respectively drive the lower side tongue plate 526 and the lower side push plate 525 to move toward the lower cavity, and the lower side push plate 525 enters the lower cavity. At the same time, the lower side limiting driving source 527 limits the stroke of the lower side tongue plate 526, so that the lower side tongue plate 526 partially enters the lower cavity, and the first non-locking edge 71 of the lower cloth piece is folded inward. Fig.24 shown.

[0212] Pre-buckle: The floating mounting plate 114 moves down to the pre-buckle height, the lower buckle edge lifting driving source 533 drives the lower buckle edge push plate 535 to move to the pre-folding height, and the lower buckle edge push plate driving source 531 drives the lower buckle edge push plate 535 to translate 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.25 shown.

[0213] Interlocking: the floating mounting plate 114 moves up to the closing height; during the upward movement of the floating mounting plate 114, the upper buckle edge lifting drive source 417 drives the upper buckle edge tongue plate 411 to move to the same height as the upper buckle edge push plate 412, and the upper buckle edge guide drive source 416 drives the upper buckle edge tongue plate 411 to completely enter the upper cavity; at the same time, the lower buckle edge lifting drive source 533 drives the lower buckle edge push plate 535 to move to the same height as the lower straight edge push plate 541, and the lower buckle edge guide drive source 534 drives the lower buckle edge push plate 535 to completely enter the lower cavity, and the folding and interlocking action of the trouser waist is now completed. Fig.26 shown.

[0214] As can be seen from the above, the present invention can fold, pre-fasten and interlock the upper fabric piece 6 and the lower fabric piece 7 of the trouser waist in sequence by setting the upper folding mechanism 1, the lower folding mechanism 2 and the upper folding feeding mechanism 8, thereby realizing the automatic folding and interlocking of the trouser waist, and replacing the traditional manual folding and interlocking by automation, effectively reducing the time and manpower consumed, greatly improving the production efficiency of the trouser waist, and reliably ensuring the sewing quality of jeans. In addition, the present invention reliably realizes the folding and interlocking of the upper fabric piece 6 and the lower fabric piece 7, making the processed product more stable, the process controllable, and the shape more compact.

[0215] The following describes the preferred structures of the upper folding mechanism 1, the lower folding mechanism 2, and the upper folding feeding mechanism 8 in the automatic folding and interlocking device for trouser waistbands of the present invention.

[0216] Upper folding mechanism

[0217] like Figure 1-4 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.

[0218] The upper folding unit includes a second lifting drive source 111 disposed on the upper folding lifting plate 33, and the floating mounting plate 114 moves up and down under the drive of the second lifting drive source 111. 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, the upper cavity cloth blocking assembly 45, the upper edge expanding assembly 46 and the upper clamp assembly 47 to move up and down synchronously.

[0219] 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.

[0220] 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.

[0221] like Figure 4-5 , Figure 8 and Fig. 9 As shown, the upper mold cavity assembly 43 has the following two embodiments to achieve detachable installation between the upper cloth sheet 6 and the upper mold cavity:

[0222] like Figure 8 As shown, in the first embodiment of the upper mold cavity assembly 43, the upper mold cavity is connected to the negative pressure mechanism, which is used to negatively adsorb and fix the upper cloth piece 6. The negative pressure mechanism is specifically a vacuum machine. The negative pressure mechanism connected to the upper mold cavity and the negative pressure mechanism connected to the lower mold cavity can be the same negative pressure mechanism, or two independent negative pressure mechanisms.

[0223] like Fig. 9As shown, the second embodiment of the upper cavity assembly 43 includes a needling drive source 437 connected to the floating mounting plate 114 through a needling machine frame 438, and a needling block 432 that moves up and down driven by the needling drive source 437. The needling block 432 is located above the upper cavity plate 433, and a plurality of groups of fixed needles 4321 are provided at its lower end, and each group of fixed 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 fixed needles 4321 enter the upper cavity, and the upper cloth piece 6 is fixed by needling, so that the upper cloth piece 6 is firmly installed in the upper cavity.

[0224] In the second embodiment of the upper cavity assembly 43, 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.

[0225] Furthermore, the upper cavity assembly 43 further includes 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 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.

[0226] like Figure 5-6 , Figure 8-9 and Fig.24As 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.

[0227] like Figure 5 , Figure 7-10 and Fig.24 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.

[0228] like Figure 5 , Figure 8-9 , Fig.11 and Fig.24 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.

[0229] like Figure 5 , Fig.12 and Fig.25 As shown, the upper edge expansion assembly 46 is arranged near the upper buckle edge push plate assembly 41 (close to the side where the upper buckle edge tongue plate 411 is located), and is used to shape the shape of the gap formed by the folded upper cloth piece buckle edge buckle side 612. The upper edge expansion assembly 46 includes an upper edge expansion rod 464, an upper edge expansion rod first driving source 463 for driving the upper edge expansion rod 464 to approach or move away from the upper cavity assembly 43 (i.e., translate in the left and right direction), and an upper edge expansion rod second driving source 465 for driving the upper edge expansion rod 464 to translate in the extension direction of the gap formed by the folded upper cloth piece buckle edge buckle side 612 (i.e., translate in the front and back direction). Specifically, the upper expansion slider is connected to the floating mounting plate 114 through the upper expansion fixing bracket 461, the upper expansion rod second driving source 465 is connected to the upper expansion slider through the upper expansion connecting plate 466, and the upper expansion rod second driving source 465 is connected to the upper expansion connecting bracket 462; one side of the upper expansion connecting bracket 462 is provided with an upper expansion guide rail 467 extending in the left-right direction, and the upper expansion guide rail 467 is slidably connected to the upper expansion slider; the other side of the upper expansion connecting bracket 462 is provided with an upper expansion rod first driving source 463, and the upper expansion rod first driving source 463 is connected to the upper expansion rod 464. Preferably, the upper expansion rod first driving source 463 and the upper expansion rod second driving source 465 are both cylinders, the cylinder piston rod of the upper expansion rod first driving source 463 is connected to the upper expansion rod 464, and the cylinder piston rod of the upper expansion rod second driving source 465 is connected to the upper expansion connecting bracket 462. When the cylinder piston rod of the second driving source 465 of the upper edge expanding rod is extended, it drives the first driving source 463 of the upper edge expanding rod and the upper edge expanding rod 464 to move forward at the same time; when the cylinder piston rod of the first driving source 463 of the upper edge expanding rod is extended, it drives the upper edge expanding rod 464 to approach the upper cavity assembly 43.

[0230] like Figure 5 , Fig.13 and Fig.24As shown, the upper clamp assembly 47 is arranged near the upper buckle side push plate assembly 41 (close to the side where the upper buckle side push plate 412 is located), and includes a clamp jaw 473, an upper clamp translation drive source 471 for driving the clamp jaw 473 to translate in the front and rear directions, and an upper clamp lifting drive source 477 for driving the upper clamp translation drive source 471 and the clamp jaw 473 to move up and down simultaneously. Among them, the upper clamp lifting drive source 477 is connected to the floating mounting plate 114 through the upper clamp fixing plate 478, and is connected to the upper clamp translation drive source 471 through the upper clamp lifting connecting plate 472. The upper clamp translation drive source 471 is connected to the clamp jaw 473 through the upper clamp connecting plate 476; the clamp jaw 473 is respectively fixed with a lower clamp jaw 474 and an upper clamp jaw 475 located above the lower clamp jaw 474, which can specifically adopt the existing industrial parallel electric clamp. When the clamp jaw 473 is opened or closed, the lower clamp jaw 474 and the upper clamp jaw 475 are separated or approached from each other to realize the placement or clamping of the trouser placket. Preferably, the upper clamp lifting drive source 477 and the upper clamp translation drive source 471 are both cylinders, wherein the cylinder piston rod of the upper clamp lifting drive source 477 is connected to the upper clamp lifting connection plate 472, and the cylinder piston rod of the upper clamp translation drive source 471 is connected to the clamp jaw 473 through the upper clamp connection plate 476. When the cylinder piston rod of the upper clamp lifting drive source 477 is extended, the clamp jaw 473 is driven to move downward; when the cylinder piston rod of the upper clamp translation drive source 471 is extended, the clamp jaw 473 is driven to move forward and close to the upper cavity assembly 43.

[0231] Lower folding mechanism

[0232] like Fig.14 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.

[0233] like Figure 15-16 and Fig.24As shown, the lower side push plate assembly 52 is arranged on the rear side of the lower cavity plate 51, and includes a lower side limiting driving source 527 and 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 installed on the lower side push plate driving source mounting plate 523. 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 driven to translate toward the lower cavity (i.e., translate in the front-back direction) respectively, to complete the inward folding of the non-butting edge 71 of the lower cloth piece. The lower side limit driving source 527 is arranged between the lower side tongue plate 526 and the lower cavity, and is used to limit the stroke of the lower side tongue plate 526, so that the lower side tongue plate 526 has three relative positions relative to the lower cavity, i.e., exiting the lower cavity, partially entering the lower cavity, and completely entering the lower cavity, thereby completing the action of folding the non-butting edge 71 of the lower cloth piece into different lengths. Preferably, the lower side limiting driving source 527, the lower side lifting driving source 524, the lower side tongue plate driving source 521 and the lower side push plate driving source 522 are all cylinders, wherein the cylinder piston rod of the lower side lifting driving source 524 is connected to the lower side push plate driving source mounting plate 523; the cylinder piston rod of the lower side tongue plate driving source 521 is connected to the lower side tongue plate 526 through the lower side tongue plate connecting plate 5261, and the cylinder piston rod of the lower side limiting driving source 527 is used to limit the stroke of the lower side tongue plate connecting plate 5261, which will not interfere with the folding action of the lower side tongue plate 526; the cylinder piston rod of the lower side push plate driving source 522 is connected to the lower side push plate 525 through the lower side push plate connecting plate, and it is at the same installation height as the lower side tongue plate 526.

[0234] like Fig.15 , Figure 17-18 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.

[0235] like Fig.17 and Fig.24As 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. Preferably, 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.

[0236] like Fig.18 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.

[0237] like Fig.15 and Fig.24As 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 rear side of 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.

[0238] like Fig.19 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.

[0239] Upper folding feeding mechanism

[0240] like Figure 1-2 and Figure 19-20 As shown, the upper folding feeding mechanism 8 includes an upper folding feeding unit, which is arranged below the upper cavity assembly 43, and 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. A plurality of feeding needles 89 are provided on the top of the upper folding feeding plate 88, and the feeding needles 89 can pierce the upper cloth piece 6 from bottom to top. The avoidance driving assembly is used to drive the upper folding feeding driving source 82 and the upper folding feeding plate 88 to approach or move away from the upper cavity assembly 43 at the same time, so as to realize the avoidance action of the upper folding feeding unit 8. The upper folding feeding driving source 82 is used to drive the upper folding feeding plate 88 to enter or exit the upper cavity, so as to complete the feeding action to the upper cavity.

[0241] The avoidance drive assembly specifically includes an upper folding feed bottom plate 86, an upper folding feed connecting plate 84 slidably arranged on the upper folding feed bottom plate 86, a second upper folding avoidance drive source 85 for driving the upper folding feed connecting plate 84 to translate in the left-right direction, and a first upper folding avoidance drive source 83 arranged on the upper folding feed connecting plate 84. The first upper folding avoidance drive source 83 is connected to the upper folding feed drive source 82 through a connecting plate, and is used to drive the upper folding feed drive source 82 and the upper folding feed plate 88 to move up and down simultaneously. The second upper folding avoidance drive source 85 is used to drive the first upper folding avoidance drive source 83, the upper folding feed drive source 82 and the upper folding feed plate 88 to translate in the left-right direction simultaneously.

[0242] 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, wherein 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.

[0243] Furthermore, in order to simultaneously complete the folding and interlocking work of the left and right trouser waists and improve work efficiency, Figure 2 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 upper folding feeding mechanism 8 includes two upper folding feeding units, namely, the upper left folding feeding unit 801 and the upper right folding feeding unit 802.

[0244] Among them, the upper left folding unit 11 and the lower left folding unit 21 are arranged correspondingly up and down, the upper right folding unit 12 and the lower right folding unit 22 are arranged correspondingly up and down, the upper left folding feeding unit 801 is used to feed materials to the upper left folding unit 11, and the upper right folding feeding unit 802 is used to feed materials 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 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.

[0245] Press cavity moving mechanism

[0246] like Figure 1 , Figure 21-23 As shown, the automatic folding and interlocking device for waistband of the present invention also preferably includes a pressing cavity moving mechanism 9, which 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 94, a pressing moving base plate 93 connected to the core translation driving source 94, a folding core unit arranged on the pressing moving base plate 93, and a pressing unit connected to the pressing moving base plate 93. The core translation driving source 94 is used to drive the pressing moving base plate 93, 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 901 installed on the pressing moving base plate 93 through a core bracket 902, and the folding core 901 is provided with a plurality of 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 901.

[0247] During operation, the core translation driving source 94 drives the pressing material moving bottom plate 93 to approach the lower cavity plate 51, so that the folding core 901 is placed in the lower cavity, and the air suction hole on the folding core 901 is connected with the negative pressure mechanism, and the lower cloth piece 7 can be fixed on the folding core 901 by negative pressure adsorption. At this time, the pressing plate is far away from the folding core 901, 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 901, and then the core translation driving source 94 drives the pressing material moving bottom plate 93 away from the lower cavity plate 51, so that the folding core 901 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.

[0248] As can be seen from the above, the automatic folding and interlocking device for trouser waist of the present invention effectively eliminates the influence of the table gap between the lower cavity and the lower table 23 on the material transfer stability by setting the pressing cavity moving mechanism 9, thereby ensuring the smoothness and accuracy of the subsequent material transfer process.

[0249] In order to simultaneously complete the pressing and cavity shifting actions for the left and right waistbands and improve work efficiency, the number of folding core units and pressing units in the pressing cavity moving mechanism 9 is two, including a lower left folding core unit 92 and a lower right folding core unit 91 arranged on the pressing moving bottom plate 93, a left pressing unit 920 arranged above the lower left folding core unit 92, and a right pressing unit 910 arranged above the lower right folding core unit 91, and the right pressing unit 910 is connected to the pressing moving bottom plate 93 through a pressing bracket 905. The lower left folding core unit 92 is located on the left side of the lower right folding core unit 91, and the lower left folding core unit 92 is arranged in front and back correspondence with the lower left folding unit 21, and the lower right folding core unit 91 is arranged in front and back correspondence with the lower right folding unit 22. The lower left folding core unit 92 also includes a material pressing translation driving source 903 arranged on the material pressing moving bottom plate 93, and a material pressing telescopic bottom plate 904 slidably arranged on the material pressing moving bottom plate 93. The folding core 901 of the left material pressing unit 920 and the lower left folding core unit 92 are both arranged on the material pressing telescopic bottom plate 904. The material pressing telescopic bottom plate 904 approaches or moves away from the lower right folding core unit 91 under the drive of the material pressing translation driving source 903.

[0250] like Fig. 22As shown, the left material pressing unit 920 is installed on the material pressing telescopic bottom plate 904 through the left material pressing fixed bracket 926, and the left material pressing fixed bracket 926 is provided with a material pressing guide rail 922, and one end of the material pressing guide rail 922 is provided with a left material pressing translation driving source 921. The material pressing guide rail 922 extends in the front-to-back direction, and the left material pressing translation driving source 921 is connected to the floating joint connecting plate 928 through the material pressing floating joint 927, and the floating joint connecting plate 928 is connected with the left material pressing slider mounting plate 925, and the left material pressing slider mounting plate 925 is slidably arranged on the material pressing guide rail 922. The left material pressing slider mounting plate 925 is also provided with a left material pressing plate lifting driving source 923, and the left material pressing plate lifting driving source 923 is used to drive the left material pressing plate 924 to move up and down, and the left material pressing translation driving source 921 is used to drive the left material pressing plate lifting driving source 923 and the left material pressing plate 924 to move forward and backward synchronously.

[0251] like Fig.23 As shown, the right pressing unit 910 includes a right pressing unit lifting driving source 916 connected to the pressing bracket 905 through a right pressing fixing plate 918, and the right pressing unit lifting driving source 916 is used to drive the right pressing lifting connecting plate 917 to move up and down. The right pressing lifting connecting plate 917 is connected to a pressing guide rail 912 extending in the front-to-back direction, and a pressing slider mounting plate 913 is slidably arranged on the pressing guide rail 912. One end of the pressing guide rail 912 is provided with a right pressing translation driving source 911, and the right pressing translation driving source 911 is connected to a floating joint connecting plate 9191 through a pressing floating joint 919, and the floating joint connecting plate 9191 is connected to the pressing slider mounting plate 913. A right press plate lifting drive source 914 is also installed on the press slider mounting plate 913. The right press plate lifting drive source 914 is used to drive the right press plate 915 to move up and down. The right press translation drive source 911 is used to drive the right press plate lifting drive source 914 and the right press plate 915 to move forward and backward synchronously. The right press unit lifting drive source 916 is used to drive the right press translation drive source 911, the press plate lifting drive source 914 and the right press plate 915 to move up and down synchronously.

[0252] The above-mentioned core translation drive source 94, material pressing translation drive source 903, left material pressing translation drive source 921, right material pressing translation drive source 911, left material pressing plate lifting drive source 923, right material pressing plate lifting drive source 914 and right material pressing unit lifting drive source 916 are preferably selected from cylinders, and technical personnel in this field may also use a screw motor as a substitute.

[0253] In summary, when the trouser waist automatic folding and interlocking device having the upper folding mechanism 1, the lower folding mechanism 2, the upper folding and feeding mechanism 8 and the pressing and cavity moving mechanism 9 folds the upper fabric piece 6 and the lower fabric piece 7 of the trouser waist, the folding and interlocking process includes multiple steps such as feeding, folding, pre-fastening, interlocking, pressing, cavity moving and resetting. The specific folding and interlocking process is as follows:

[0254] 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, and the preset distance is specifically 30 mm. Each push plate, tongue plate, cloth block, upper expansion rod 464, and clamp jaw 473 in the upper folding unit and the lower folding unit are all outside the folding area. The cylinder piston rod of the upper clamp lifting drive source 477 is in an extended state, the clamp jaw 473 is in an open state, and the lower jaw 474 and the upper jaw 475 are symmetrical about the upper surface of the upper straight edge push plate 424. The cylinder piston rods of the first upper folding avoidance drive source 83 and the second upper folding avoidance drive source 85 are both in an extended state, and the cylinder piston rod of the upper folding feeding drive source 82 is in a retracted state. The upper folding feeding plate 88 is between the upper cavity and the lower cavity, and the spacing between them is the same. The cylinder piston rods of the core translation driving source 94 and the material pressing translation driving source 903 are both in a retracted state, and the folding core 901 is in the lower cavity. The material pressing plate is at the farthest distance from the folding core 901.

[0255] Loading: manually place the lower cloth piece 7 on the folding core 901, place the upper cloth piece 6 on the upper folding feed plate 88, and let the feed needle 89 pierce the cloth piece 6. Place the trouser placket on the lower clamp 474. The cylinder piston rod of the upper folding feed drive source 82 extends, drives the upper folding feed plate 88 to move upward, and feeds the upper cloth piece 6 into the upper cavity, and the upper cavity assembly 43 removes the upper cloth piece 6. Then the cylinder piston rod of the upper folding feed drive source 82 retracts, drives the upper folding feed plate 88 to move downward, and the upper cloth piece 6 is separated from the feed needle 89. The cylinder piston rods of the first upper folding avoidance drive source 83 and the second upper folding avoidance drive source 85 are both retracted, driving the upper folding feed plate 88 away from the upper cavity assembly 43. The cylinder piston rod of the upper cloth block driving source 451 extends to drive the upper cloth block 452 to move downward, and the upper cloth block 452 passes through the upper cavity, so that the upper cloth piece is bent downward against the buckle edge 61 .

[0256] The specific process of removing the upper cloth sheet 6 from the upper cavity assembly 43 is as follows:

[0257] When the upper mold cavity assembly 43 adopts the structure of the first embodiment, the negative pressure mechanism works, and the upper cloth sheet 6 is adsorbed and fixed in the upper mold cavity due to the negative pressure.

[0258] When the upper cavity assembly 43 adopts the structure of the second embodiment, 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 upper cloth piece 6, thereby completing the fixing of the upper cloth piece 6.

[0259] 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.

[0260] 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 mold 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 mold cavity, folding the two upper cloth pieces' non-buckled edges 62 inward into the upper mold cavity. Then the clamp jaws 473 are closed, and the upper jaws 475 and the lower jaws 474 clamp the trouser placket, so that the trouser placket is tightly attached to the bottom of the upper cloth piece's non-buckled edge 62 adjacent to the upper cloth piece's non-buckled side 611. The cylinder piston rod of the upper buckle edge push plate driving source 413 extends, driving the upper buckle edge push plate 412 to translate toward the upper mold cavity, and folding the upper cloth piece's non-buckled side 611 inward into the upper mold cavity. The upper buckle edge lifting drive source 417 drives its screw 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, driving the upper buckle edge tongue plate 411 to translate toward the upper cavity, and pre-folding the buckle edge of the upper cloth piece 612 inward into the upper cavity. The cylinder piston rods of the upper expansion rod first driving source 463 and the upper expansion rod second driving source 465 are both extended, driving the upper expansion rod 464 to enter the gap formed by the buckle edge of the folded upper cloth piece 612, shaping the shape of the gap so that the shape of the gap reaches a predetermined state. The cylinder piston rods of the upper expansion rod first driving source 463 and the upper expansion rod second driving source 465 are both retracted, and the upper expansion rod 464 is reset.

[0261] 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 move 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 exit 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 first non-locking edge 71 of the lower cloth piece is bent upward. The cylinder piston rods of the lower side lifting drive source 524 and the lower side limit drive source 527 are both extended to drive 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 to drive the lower side tongue plate 526 and the lower side push plate 525 to move toward the lower cavity, and the lower side push plate 525 enters the lower cavity; at the same time, the cylinder piston rod of the lower side limit drive source 527 limits the stroke of the lower side tongue plate 526, so that the lower side tongue plate 526 partially enters the lower cavity, and the first non-locking edge 71 of the lower cloth piece is folded 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.24 shown.

[0262] The folding actions of the upper folding unit and the lower folding unit can be performed simultaneously.

[0263] 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.25 shown.

[0264] 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:

[0265] 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;

[0266] 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.

[0267] At this point, the folding and interlocking of the trouser waist is completed. Fig.26 shown.

[0268] 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 901, and the trouser placket is located between the non-buttoning edge 62 of the upper cloth piece and the second non-buttoning edge 73 of the lower cloth piece. Subsequently, the upper cavity assembly 43 releases the fixation on the upper cloth piece 6, and the cylinder piston rods of the lower buckle edge guide drive source 534, the upper buckle edge tongue plate drive source 414, the upper buckle edge guide drive source 416, the upper buckle edge push plate drive source 413, the upper straight edge push plate drive source 422, the lower side tongue plate drive source 521, the lower side push plate drive source 522, the lower side limit drive source 527, the lower straight edge push plate drive source 545, the upper cloth block drive source 451 and the lower cloth block drive source 551 are all retracted, and the cylinder piston rod of the upper fixed push plate drive source 442 is extended. At this time, each push plate, tongue plate and cloth block in the upper folding unit and the lower folding unit withdraw from the upper cavity or the lower cavity. The clamp jaws 473 are opened, the cylinder piston rod of the upper clamp translation drive source 471 is extended, and the cylinder piston rod of the upper clamp lifting drive source 477 is retracted, driving the upper jaws 475 and the lower jaws 474 to be completely separated from the trouser placket. 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 trouser waist on the folding core 901. The cylinder piston rods of the lifting drive source 431 and the first lifting drive source 31 are retracted, and the pressing action is completed.

[0269] Cavity material shifting: The cylinder piston rod of the core translation driving source 94 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 901 and the left material pressing plate 924 on the left, and the folding core 901 and the right material pressing plate 915 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 903 extends out, driving the material pressing telescopic bottom plate 904 to move right, that is, the folding core 901 and the left material pressing plate 924 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.

[0270] Reset: After the material taking mechanism has finished taking the material, the material pressing plate is reset, the cylinder piston rod of the material pressing translation drive source 903 is retracted, and then the cylinder piston rod of the core translation drive source 94 is retracted, and the folded core 901 is reset and placed in the lower cavity. The cylinder piston rods of the first lifting drive source 31 and the second lifting drive source 111 are both extended, and the third lifting drive source 113 drives its screw rod to rotate, driving the floating mounting plate 114 to the preset loading height. The cylinder piston rod of the upper clamp translation drive source 471 is retracted, and the cylinder piston rod of the upper clamp lifting drive source 477 is extended, and the clamp jaws 473 are in the loading position.

[0271] In summary, the trouser waist automatic folding and interlocking device provided by the present invention has the following advantages:

[0272] 1. The upper cavity uses acupuncture / negative pressure adsorption, and the lower cavity uses negative pressure adsorption to fix the cloth, which solves the problem of unstable posture of the cloth when folding;

[0273] 2. The height of the upper buckle edge tongue plate and the lower buckle edge push plate is controlled by the lead screw motor, which is more convenient for debugging. At the same time, the buckle process of the upper and lower cloth pieces can ensure the stability of the cloth pieces against the buckle edge, thereby improving the success rate of the buckle;

[0274] 3. An upper edge expansion component is set to ensure that the buckle edge of the upper fabric piece is 100% stable in an ideal posture after pre-folding;

[0275] 4. An upper clamp assembly is provided to ensure that the relative position of the trouser placket to the trouser waist is accurate during the folding process.

[0276] 5. An upper folding feeding mechanism is set up, and the feeding needle can ensure that the upper cloth piece will not deviate before entering the upper cavity, and at the same time greatly reduces the difficulty of feeding the upper cavity;

[0277] 6. A pressing cavity moving mechanism is set up, and the trouser waist is driven to move by the folding core, eliminating the influence of the gap of the lower table on the material moving accuracy;

[0278] 7. The two waistbands on the trousers can be folded and interlocked at the same time, which greatly improves the production efficiency of the trousers.

[0279] The present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0280] 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. An automatic folding and interlocking device for trouser waist, 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), a lower folding mechanism (2) and an upper folding feeding mechanism (8); The upper folding mechanism (1) comprises an upper folding unit, and the upper folding unit comprises a floating mounting plate (114) movable up and down, 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), an upper cavity cloth blocking assembly (45), an upper edge expanding assembly (46) and an upper clamp assembly (47) are mounted on the floating mounting plate (114); the upper cavity assembly (43) comprises an upper cavity plate (433) mounted below the floating mounting plate (114), and the bottom of the upper cavity plate (433) is provided with a The upper mold cavity is used to accommodate the upper cloth piece (6), and the upper cloth piece (6) can be detachably mounted on the upper mold cavity; the upper mold 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 upper edge expanding assembly (46) is used to shape the gap formed by folding the buckle edge (61) of the upper cloth piece; the upper clamp assembly (47) is used to place the trouser placket between the upper cloth piece (6) and the lower cloth piece (7); 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); a lower cavity for accommodating the lower cloth piece (7) is provided at the top of the lower cavity plate (51); 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 first non-buckled edge (71) of the lower cloth piece, the lower buckle edge push plate assembly (53) is used to fold the buckle 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); The upper buckle edge push plate assembly (41) comprises an upper buckle edge push plate driving source (413), an upper buckle edge push plate (412) drivingly connected to the upper buckle edge push plate driving source (413), an upper buckle edge lifting driving source (417), an upper buckle edge guide driving source (416) drivingly connected to the upper buckle edge lifting driving source (417), an upper buckle edge tongue plate driving source (414) drivingly connected to the upper buckle edge guide driving source (416), and an upper buckle edge tongue plate (411) drivingly connected to the upper buckle edge tongue plate driving source (414); The upper straight-edge push plate assembly (42), the upper fixed push plate assembly (44) and the lower straight-edge push plate assembly (54) all include a push plate driving source and a push plate drivingly connected to the push plate driving source; The upper mold cavity cloth blocking assembly (45) and the lower mold cavity cloth blocking assembly (55) both comprise a cloth blocking block driving source and a cloth blocking block that moves up and down under the drive of the cloth blocking block driving source, and the cloth blocking 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; The upper edge expansion assembly (46) comprises an upper edge expansion rod (464), an upper edge expansion rod first driving source (463) for driving the upper edge expansion rod (464) to approach or move away from the upper cavity assembly (43), and an upper edge expansion rod second driving source (465) for driving the upper edge expansion rod (464) to translate along the extension direction of the slit; The upper clamp assembly (47) comprises a clamp jaw (473), an upper clamp translation driving source (471) for driving the clamp jaw (473) to translate, and an upper clamp lifting driving source (477) for driving the clamp jaw (473) to move up and down; The lower side push plate assembly (52) includes a lower side limit driving source (527), a lower side lifting driving source (524), and a lower side tongue plate driving source (521) and a lower side push plate driving source (522) that move up and down synchronously under the drive of the lower side lifting driving source (524); the lower side tongue plate driving source (521) is connected to the lower side tongue plate (526) by transmission, and the lower side push plate driving source (522) is connected to the lower side push plate (525) by transmission; the lower side limit driving source (527) is arranged between the lower side tongue plate (526) and the lower cavity, and is used to limit the travel of the lower side tongue plate (526); 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) drivingly connected to the lower buckle edge lifting drive source (533), a lower buckle edge push plate drive source (531) drivingly connected to the lower buckle edge guide drive source (534), and a lower buckle edge push plate (535) drivingly connected to the lower buckle edge push plate drive source (531); The upper folding feeding mechanism (8) comprises an upper folding feeding unit arranged below the upper cavity assembly (43), the upper folding feeding unit comprising an avoidance driving assembly, an upper folding feeding driving source (82) transmission-connected to the avoidance driving assembly, and an upper folding feeding plate (88) transmission-connected to the upper folding feeding driving source (82), and a plurality of feeding needles (89) are arranged on the top of the upper folding feeding plate (88); the avoidance driving assembly is used to drive the upper folding feeding driving source (82) and the upper folding feeding plate (88) to approach or move away from the upper cavity assembly (43) at the same time, and 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 automatic folding and interlocking device for trouser waist according to claim 1, characterized in that: The upper cavity assembly (43) further comprises a needling drive source (437) and a needling block (432) that moves up and down under the drive of the needling drive source (437); a fixing needle (4321) is provided at the lower end of the needling block (432), and the fixing needle (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 needle (4321) enters the upper cavity to fix the upper cloth piece (6) by needling.

3. The automatic folding and interlocking device for trouser waist according to claim 2, 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).

4. The automatic folding and interlocking device for trouser waist according to claim 1, characterized in that: The upper mold cavity is in communication with a negative pressure mechanism and is used for negative pressure adsorption and fixation of the upper cloth sheet (6).

5. The automatic folding and interlocking device for trouser waist according to claim 1, characterized in that: The upper cavity assembly (43) further comprises a lifting driving source (431) drivingly connected to the floating mounting plate (114); the upper cavity plate (433) is provided with a through hole (4332) communicating with 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).

6. The automatic folding and interlocking device for trouser waist according to claim 1, characterized in that: The avoidance drive assembly comprises a first upper folding avoidance drive source (83) for driving the upper folding feed drive source (82) and the upper folding feed 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 feed drive source (82) and the upper folding feed plate (88) to move horizontally simultaneously.

7. The automatic folding and interlocking device for trouser waist according to claim 1, characterized in that: The mold pressing machine also comprises a pressing cavity moving mechanism (9), wherein the pressing cavity moving mechanism (9) comprises a core translation driving source (94), a pressing cavity moving base plate (93) connected to the core translation driving source (94), a folding core unit arranged on the pressing cavity moving base plate (93), and a pressing unit connected to the pressing cavity moving base plate (93), wherein the core translation driving source (94) is used to drive the pressing cavity moving base plate (93) to move closer to or farther away from the lower cavity plate (51), wherein the folding core unit comprises a folding core (901) mounted on the pressing cavity moving base plate (93), wherein a plurality of air suction holes are arranged on the folding core (901); and wherein the pressing unit is arranged above the folding core unit and comprises a movable pressing plate, wherein the pressing plate can move closer to or farther away from the folding core (901).

8. The automatic folding and interlocking device for trouser waist according to claim 7, characterized in that: The number of the folding core units and the pressing units is two, including a lower left folding core unit (92) and a lower right folding core unit (91) arranged on the pressing moving bottom plate (93), a left pressing unit (920) arranged above the lower left folding core unit (92), and a right pressing unit (910) arranged above the lower right folding core unit (91); the lower left folding core unit (92) also includes a pressing translation driving source (903) arranged on the pressing moving bottom plate (93), and a pressing telescopic bottom plate (904) slidably arranged on the pressing moving bottom plate (93); the folding cores (901) of the left pressing unit (920) and the lower left folding core unit (92) are both arranged on the pressing telescopic bottom plate (904); the pressing telescopic bottom plate (904) approaches or moves away from the lower right folding core unit (91) under the drive of the pressing translation driving source (903).

9. The automatic folding and interlocking device for trouser waist according to claim 1, characterized in that: The upper folding mechanism (1) comprises two upper folding units, the lower folding mechanism (2) comprises two lower folding units, and the upper folding feeding mechanism (8) comprises two upper folding feeding units.

10. A method for automatically folding and interlocking a trouser waist, characterized in that: Using the trouser waist automatic folding and interlocking device as described in any one of claims 1 to 9, the trouser waist automatic folding and interlocking method comprises the following steps: Loading: placing the lower fabric piece (7) in the lower mold cavity, placing the upper fabric piece (6) in the upper folding feed plate (88), and placing the trouser placket in the clamping claw (473); the upper folding feed drive source (82) drives the upper folding feed plate (88) to move upward, and feeds the upper fabric piece (6) into the upper mold cavity; the upper mold cavity assembly (43) removes the upper fabric piece (6); the upper folding feed drive source (82) drives the upper folding feed plate (88) to move downward, and the upper fabric piece (6) is fed into the upper mold cavity. 6) is separated from the feeding needle (89), the avoidance driving component drives the upper folding feeding plate (88) away from the upper cavity component (43); the cloth block driving source of the upper cavity cloth block component (45) drives its cloth block to move downward, and the cloth block passes through the upper cavity, so that the upper cloth piece is bent downward against the buckle edge (61); the lower cloth piece (7) is adsorbed and fixed in the lower cavity due to the negative pressure, and the lower side push plate component (52) drives the lower side tongue plate (526) to press on the lower cloth piece (7); The upper folding unit folds: the push plate driving sources of the upper straight edge push plate assembly (42) and the upper fixed push plate assembly (44) drive the push plates of the two to move toward the upper cavity, so that the non-buttoning edge (62) of the upper cloth piece is folded inward; the clamping claws (473) close and clamp the trouser placket, so that the trouser placket is closely attached to the bottom of the non-buttoning edge (62) of the upper cloth piece; the upper buttoning edge push plate driving source (413) drives the upper buttoning edge push plate (412) to move toward the upper cavity, so that the non-buttoning side (611) of the buttoning edge of the upper cloth piece is folded inward. Folding inwards; the upper buckle edge lifting drive source (417) drives the upper buckle edge tongue plate drive source (414) to move to a pre-folding height, and the upper buckle edge tongue plate drive source (414) drives the upper buckle edge tongue plate (411) to translate toward the upper cavity, and pre-folds the buckle edge and buckle side (612) of the upper cloth piece inwards; the upper edge expansion component (46) drives the upper edge expansion rod (464) to enter the gap, and reshape the gap, and then the upper edge expansion component (46) drives the upper edge expansion rod (464) to reset; The lower folding unit folds: the push plate driving source of the lower straight edge push plate assembly (54) drives its push plate to press on the lower cloth piece (7), and the lower side edge push plate assembly (52) drives the lower side edge tongue plate (526) to withdraw from the lower cavity; the cloth block driving source of the lower cavity cloth block assembly (55) drives its cloth block to move upward, and the cloth block passes through the lower cavity, so that the first non-locking edge (71) of the lower cloth piece is bent upward; the lower side edge lifting driving source (524) drives the lower side edge tongue plate driving source (521) and The lower side push plate driving source (522) moves upward, and the lower side tongue plate driving source (521) and the lower side push plate driving source (522) respectively drive the lower side tongue plate (526) and the lower side push plate (525) to move toward the lower cavity, and the lower side push plate (525) enters the lower cavity. At the same time, the lower side limit driving source (527) limits the stroke of the lower side tongue plate (526), ​​so that the lower side tongue plate (526) partially enters the lower cavity, and the first non-locking edge (71) of the lower cloth piece is folded inward; Pre-fastening: the floating mounting plate (114) moves downward to a pre-fastening height, the lower fastening edge lifting driving source (533) drives the lower fastening edge pushing plate (535) to move to a pre-folding height, and the lower fastening edge pushing plate driving source (531) drives the lower fastening edge pushing plate (535) to move toward the lower cavity, inserting the lower fabric piece fastening edge (72) into the slit, so that the lower fabric piece fastening edge (72) and the upper fabric piece fastening edge fastening side (612) are pre-fastened; Interlocking: the floating mounting plate (114) moves up to the closing height; during the upward movement of the floating mounting plate (114), the upper buckle edge lifting drive source (417) drives the upper buckle edge tongue plate (411) to move to the same height as the upper buckle edge push plate (412), and the upper buckle edge guide drive source (416) drives the upper buckle edge tongue plate (411) to completely enter the upper cavity; at the same time, the lower buckle edge lifting drive source (533) drives the lower buckle edge push plate (535) to move to the same height as the lower straight edge push plate (541), and the lower buckle edge guide drive source (534) drives the lower buckle edge push plate (535) to completely enter the lower cavity.

Images