Waistband folding device

Abstract

The utility model discloses a kind of waist folding device, including rack, and upper folding mechanism, lower folding mechanism, material blocking mechanism being installed on rack;Wherein, lower folding mechanism includes lower bearing unit, lower auxiliary bearing unit, lower long side folding unit and lower short side folding unit;Upper folding mechanism includes first upper lifting and lowering platform, upper material pressing unit, upper long side folding unit and upper short side folding unit;Material blocking mechanism includes two material blocking plates, material blocking lifting and lowering drive component and two material blocking linear drive components;The utility model can complete the folding of jeans waist part and the inside edge cannot be exposed.

Description

Technical Field

[0001] This utility model relates to the field of automated sewing equipment technology, and in particular, to a waistband folding device. Background Technology

[0002] Before sewing, the waistband of jeans needs to be folded. For regular jeans, only the outer side of the fabric needs to be folded at the waistband to prevent the edge of the fabric from showing. For high-end brand jeans, the inner side of the fabric is usually required to be folded as well. However, there is currently no equipment on the market that can complete this operation, so it still needs to be done manually. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to provide a waistband folding device that can fold the waistband of jeans without exposing the inner edge.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A trouser waistband folding device includes a frame, and an upper folding mechanism, a lower folding mechanism, and a material stop mechanism mounted on the frame; wherein, The lower folding mechanism includes a lower support unit, a lower auxiliary support unit, a lower long-side folding unit, and a lower short-side folding unit; wherein, the lower support unit includes a central support platform and a first support platform driving assembly; the lower auxiliary support unit includes two side support platforms and a second support platform driving assembly, the two side support platforms being located on the left and right sides of the central support platform respectively; the first support platform driving assembly is used to drive the central support platform to move up and down; the second support platform driving assembly is configured to drive the side support platforms to move up and down; the upper surface of the central support platform is provided with a negative pressure hole, and the interior of the central support platform is provided with a negative pressure channel communicating with the negative pressure hole, the negative pressure channel being externally connected to a negative pressure source; The lower long side folding unit includes two lower long side folding plates and a lower long side driving assembly. The two lower long side folding plates are respectively located on the other side of the two side support platforms relative to the central support platform. The lower long side driving assembly is configured to drive the two lower long side folding plates to move up and down and left and right. The lower short side folding unit includes two lower short side folding plates spaced apart on the left and right sides and a lower short side drive assembly. The two lower short side folding plates are located on the rear side of the central support platform. The lower short side drive assembly is configured to drive the lower short side folding plates to move up and down, forward and backward, and left and right. The upper folding mechanism is located above the central support platform and includes a first upper lifting platform, an upper pressing unit, an upper long side folding unit, and an upper short side folding unit; wherein, the first upper lifting platform is configured to drive the upper short side folding unit and the upper long side folding unit to move up and down as a whole; The upper pressing unit includes an upper pressing plate and an upper pressing drive assembly. The upper pressing plate is located directly above the central support platform, and the upper pressing drive assembly is configured to drive the upper pressing plate to move up and down. The upper long side folding unit includes an upper long side folding plate and an upper long side driving assembly. The two upper long side folding plates are located on the left and right sides of the upper pressure plate. The upper long side driving assembly is configured to drive the two upper long side folding plates to move up and down and left and right. The upper short side folding unit is located behind the upper long side folding unit and includes an upper short side folding plate and an upper short side driving assembly. The upper short side driving assembly is configured to drive the upper short side folding plate to move up and down and back and forth. The material blocking mechanism includes two material blocking plates, a material blocking lifting drive assembly, and two material blocking linear drive assemblies. The two material blocking plates are located on the left and right sides of the lower short-side folding plate, respectively. A material blocking rod is provided at the front end of each material blocking plate, and the angle between the length direction of the material blocking rod and the left-right movement direction of the lower long-side folding plate is an acute angle. The two material blocking linear drive assemblies are configured to drive one of the material blocking plates to move linearly along the length direction of the material blocking rod. The material blocking lifting drive assembly is configured to drive the material blocking linear drive assembly to move up and down, thereby causing the material blocking rod to move up and down.

[0005] Preferably, the angle between the length direction of the baffle rod and the left-right movement direction of the lower long side folding plate is 48 to 52 degrees.

[0006] Preferably, the frame has a fixed platform, and a first vertical plate is provided on the fixed platform; the first support platform driving assembly includes a first cylinder, which is vertically installed on the first vertical plate and located at the upper end; the central support platform is installed on the upper end of the first cylinder and is driven by the first cylinder to move up and down.

[0007] Preferably, the second support platform drive assembly adopts a cylinder slide structure, which is vertically mounted on the frame and has a first slide that can move up and down; the first slide has two spaced support rods on the left and right, which extend to the left and right sides of the central support platform respectively, and the two side support platforms are respectively mounted on one of the support rods, so that the two side support platforms can also be located on the left and right sides of the central support platform respectively.

[0008] Preferably, the lower long side drive assembly includes a first lower lifting platform and two first left-right displacement platforms respectively disposed on the left and right sides of the central support platform; the first lower lifting platform adopts a screw slide structure, which is vertically installed on the aforementioned fixed platform and has a first slide that can move up and down; a second vertical plate is provided on the fixed platform, and the second slide of the first lower lifting platform is installed on the second vertical plate through a linear guide rail to achieve up-down sliding cooperation; a support plate is provided at the upper end of the first slide; both first left-right displacement platforms adopt a screw slide structure and are installed on the support plate in a laterally opposite manner, and both first left-right displacement platforms have a third slide that can move left and right; the two lower long side folding plates are each installed on the third slide of the corresponding side of the first left-right displacement platform.

[0009] Preferably, the lower short side drive assembly includes a second lower lifting platform, a first front-to-back displacement platform, and two second left-to-right displacement platforms; wherein, the second lower lifting platform adopts a screw slide structure, which is vertically mounted on the fixed platform and has a fourth slide that can move up and down; the fourth slide is mounted on the second vertical plate via a linear guide rail; The upper end of the fourth slide of the second lower lifting platform is equipped with a first bracket. The first front-to-back displacement platform includes a second cylinder, a third cylinder, a first connecting plate, and a fifth slide. The fifth slide is mounted on the first bracket via a linear guide rail. The second cylinder and the third cylinder are both arranged rearward, and the telescopic rods of the second cylinder and the third cylinder are both connected to the first connecting plate. The second cylinder is mounted on the first bracket, and the third cylinder is mounted on the fifth slide.

[0010] Preferably, the first upper lifting platform adopts a cylinder slide structure and has a ninth slide that can move up and down; the first upper lifting platform is vertically mounted on the third bracket, and the third bracket is mounted on the frame; the upper short side folding unit is fixedly mounted on the third bracket; a fourth bracket is mounted on the ninth slide, and both the upper short side folding unit and the upper long side folding unit are mounted on the fourth bracket.

[0011] Preferably, the upper long-side folding unit includes two upper long-side folding plates and an upper long-side driving assembly; the upper long-side driving assembly includes a second upper lifting platform and two third left-right displacement platforms; the second upper lifting platform adopts a cylinder slide structure and has an eleventh slide that can move up and down; the second upper lifting platform is vertically mounted on a fourth bracket and located in front of the upper pressing drive assembly; a fifth bracket is mounted on the lower end of the eleventh slide; the two third left-right displacement platforms adopt a screw slide structure and are mounted on the fifth bracket in a horizontally opposite manner; the two third left-right displacement platforms are respectively located on the left and right sides of the upper pressing drive assembly; the two third left-right displacement platforms have a twelfth slide that can move left and right; the two upper long-side folding plates are respectively mounted on one of the twelfth slides.

[0012] Preferably, the upper short-side drive assembly includes a third upper lifting platform and a second front-to-back displacement platform; the third upper lifting platform includes a fourth cylinder, a fifth cylinder, and a thirteenth slide; the fourth cylinder and the fifth cylinder are arranged vertically opposite each other, with the fourth cylinder on top and facing downwards, and the fifth cylinder on the bottom and facing upwards, and their telescopic rods are connected together by a connector; the fourth cylinder is mounted on a fourth bracket; the fifth cylinder is mounted on the thirteenth slide. The lower end of the thirteenth slide is equipped with a sixth bracket; the second forward and backward displacement platform includes a sixth cylinder, a seventh cylinder, a fourteenth slide, and a second connecting plate; wherein, the fourteenth slide is mounted on the sixth bracket via a linear guide rail; the sixth and seventh cylinders are both arranged rearward, and the telescopic rods of the sixth and seventh cylinders are both connected to the second connecting plate; the sixth cylinder is mounted on the sixth bracket, and the seventh cylinder is mounted on the fourteenth slide; The upper short side folding plate is installed on the fourteenth slide.

[0013] Preferably, it also includes an auxiliary pressing mechanism, which includes a fourth lifting platform and an auxiliary pressing plate. The auxiliary pressing plate is located on the front side of the central support platform, and the fourth lifting platform is used to drive the auxiliary pressing plate to move up and down.

[0014] The main technical effects of this utility model are reflected in the following aspects: It can achieve two types of waistband folding: one is a single waistband (in both directions), and the other is a double waistband. After folding, the inside of the waistband can also be folded, so there will be no exposed edges. By setting up a material-stopping mechanism, the folding process can be made smoother; By setting up an auxiliary support platform, it is possible to prevent other material transfer devices from jamming during material transfer, and it also ensures that there are no empty spaces on the material transfer plane when the material transfer device is transferring materials. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of the waistband folding device in the embodiment; Figure 2 This is a schematic diagram of the waistband portion in the embodiment; Figure 3 This is a schematic diagram of the lower support unit and the lower auxiliary support unit in the embodiment; Figure 4 This is a schematic diagram of the lower long-side folding unit and the lower support unit in the embodiment; Figure 5-6 This is a schematic diagram of the lower short side folding unit in the embodiment; Figure 7 This is a schematic diagram of the material blocking mechanism in the embodiment; Figure 8-9 This is a schematic diagram of the upper folding mechanism in the embodiment; Figure 10 This is a schematic diagram of the upper pressing unit in the embodiment; Figure 11-13 This is a schematic diagram of the upper short side folding unit in the embodiment; Figure 14 This is a schematic diagram of the waistband folding device being mounted on the frame in the embodiment; Figure 15 This is a schematic diagram of the auxiliary pressing mechanism in the embodiment; Figure 16 for Figure 14 Enlarged view of part A in the middle.

[0016] Reference numerals: 1. Lower support unit; 11. Central support platform; 111. Negative pressure hole; 12. First vertical plate; 13. First cylinder; 2. Lower auxiliary support unit; 21. Side support platform; 22. First slide table; 23. Support rod; 24. Second support platform drive assembly; 3. Lower long side folding unit; 31. First lower lifting platform; 311. Second slide table; 312. Support plate; 32. First left and right displacement platform; 321. Third slide table; 33. Lower long side folding plate; 4. Lower short side folding unit; 41. Second lower lifting platform; 411. Fourth slide table; 412. First bracket; 42 421. First forward / backward displacement platform; 422. Fifth slide table; 423. Third cylinder; 424. Second cylinder; 425. First connecting plate; 43. Second left / right displacement platform; 431. Sixth slide table; 44. Lower short side folding plate; 5. Material blocking mechanism; 51. Material blocking plate; 511. Material blocking rod; 52. Material blocking lifting drive assembly; 521. Seventh slide table; 53. Material blocking linear drive assembly; 531. Eighth slide table; 6. First upper lifting platform; 61. Ninth slide table; 7. Upper pressing unit; 71. Upper pressing lifting assembly; 711. Tenth slide table; 72. Upper pressing plate; 8. Upper Long side folding unit; 81. Second upper lifting platform; 811. Eleventh slide; 82. Third left and right displacement platform; 821. Twelfth slide; 83. Upper long side folding plate; 9. Upper short side folding unit; 91. Upper short side folding plate; 92. Third upper lifting platform; 921. Thirteenth slide; 922. Fourth cylinder; 923. Fifth cylinder; 924. Connector; 93. Second front and rear displacement platform; 931. Fourteenth slide; 932. Sixth cylinder; 933. Seventh cylinder; 934. Second connecting plate; 101. Fixed platform; 102. Second vertical plate; 103. Second support Frame; 104, Third bracket; 105, Fourth bracket; 106, Fifth bracket; 107, Connecting frame; 108, Sixth bracket; 109, Machine frame; 110, Tabletop; 201, Trouser body fabric; 202, Upper fabric; 2021, Upper long fold; 2022, Upper short fold; 203, Lower fabric; 2031, Lower long fold; 2032, Lower short fold; 300, Auxiliary pressing mechanism; 301, Auxiliary pressing plate; 302, Fourth lifting platform; 3021, Fifteenth slide; 400, Material transfer device; 401, Material transfer plate; 402, XYZ axis displacement platform. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered. Example

[0018] like Figure 1 , Figure 14 , Figure 16The illustrated trouser waistband folding device includes a frame 109, and an upper folding mechanism, a lower folding mechanism, and a material-stopping mechanism 5 mounted on the frame 109. The frame 109 has a platform 110 for the operator to rotate the trouser waistband. A material transfer device 400 and a sewing device (located to the right of the material transfer device 400 but not shown) can also be mounted on the frame 109. The material transfer device 400 has an XYZ axis displacement platform 402 and a material transfer plate 401. The XYZ axis displacement platform 402 drives the material transfer plate 401 to press the fabric against the platform 110, and then moves it to the right, causing the fabric to move along the platform 110 to the sewing position, where it is sewn by the sewing device. This material transfer and sewing process is similar to that of commercially available bag-opening or bag-applying machines; its principle will not be elaborated further in this embodiment.

[0019] The waistband folding device is mainly used for, for example Figure 2 The waistband shown is folded. Figure 2 In this embodiment, the waistband includes an upper fabric 202, a lower fabric 203, and a body fabric 201. In the previous process, other parts of the upper fabric 202 and the lower fabric 203 were sewn onto the body fabric 201 manually or using other equipment, leaving only the front end that needs to be folded. This end is then folded by the waistband folding device shown in this embodiment. The folding sequence is as follows: first, fold the lower short fold edge 2032 of the lower fabric 203 inward; then, fold the upper long fold edge 2021 of the upper fabric 202 inward; then, fold the upper short fold edge 2022 of the upper fabric 202 inward, forming an opening between it and the upper long fold edge 2021; finally, fold the lower long fold edge 2031 of the lower fabric 203 inward to fasten it into the aforementioned opening, thus completing the folding process.

[0020] Figure 2 The first type is a double-piece waistband, where the outer edges of the upper fabric 202 and the lower fabric are separate. The second type is a single-piece waistband, where the lower long fold 2031 of the outer edge of the upper fabric 202 and the upper long fold 2021 of the outer edge of the lower fabric 203 are connected as one piece, essentially the same piece of fabric. Therefore, for a single-piece waistband, when folding, only the inner edges of the upper fabric 202 and the lower fabric 203 need to be folded.

[0021] The aforementioned lower folding mechanism includes a lower support unit 1, a lower auxiliary support unit 2, a lower long side folding unit 3, and a lower short side folding unit 4.

[0022] like Figure 3As shown, the lower support unit 1 includes a central support platform 11 and a first support platform drive assembly. A fixed platform 101 is located on the frame 109, and a first vertical plate 12 is mounted on the fixed platform 101. The fixed platform and the first vertical plate 12 can also be considered part of the frame 109. The first support platform drive assembly includes a first cylinder 13, which is vertically mounted on the first vertical plate 12 at its upper end. The central support platform 11 is mounted on the upper end of the first cylinder 13 and is driven by the first cylinder 13 to move up and down. A negative pressure hole 111 is provided on the upper surface of the central support platform 11, and a negative pressure channel communicating with the negative pressure hole 111 is provided inside the central support platform 11. The negative pressure channel is connected to a negative pressure source. Thus, by connecting the negative pressure source, the lower fabric 203 can be adsorbed, preventing the lower fabric 203 from deviating.

[0023] The lower auxiliary support unit 2 includes two side support platforms 21 and a second support platform drive assembly 24. The second support platform drive assembly 24 adopts a cylinder slide structure and is vertically mounted on the frame 109. It has a first slide 22 that can move up and down. The first slide 22 has two spaced-apart support rods 23, which extend to the left and right sides of the central support platform 11, respectively. The two side support platforms 21 are respectively mounted on one of the support rods 23, so that the two side support platforms 21 can also be located on the left and right sides of the central support platform 11. It is worth noting that during actual assembly, the two side support platforms 21 are placed as close as possible to the sides of the central support platform 11. By controlling the second support platform drive assembly 24, the two side support platforms 21 can be driven to move up and down.

[0024] like Figure 4 As shown, the lower long-side folding unit 3 includes two lower long-side folding plates 33 and a lower long-side driving assembly. The two lower long-side folding plates 33 are located on the opposite side of the two side support platforms 21 relative to the central support platform 11. The lower long-side driving assembly includes a first lower lifting platform 31 and two first left-right displacement platforms 32 respectively disposed on the left and right sides of the central support platform 11. The first lower lifting platform 31 adopts a screw slide structure and is vertically mounted on the aforementioned fixed platform, having a first slide 22 capable of vertical displacement. A second vertical plate 102 is provided on the fixed platform, and the second slide 311 of the first lower lifting platform 31 is mounted on the second vertical plate 102 via a linear guide rail to achieve vertical sliding cooperation. A support plate 312 is provided at the upper end of the second slide 311. Both first left-right displacement platforms 32 adopt a screw-slide structure and are installed on the support plate 312 in a laterally opposite manner. Each of the two first left-right displacement platforms 32 has a third slide 321 that can move left and right. Each of the two lower long-side folding plates 33 is installed on the third slide 321 of the corresponding first left-right displacement platform 32. Furthermore, by controlling the two first left-right displacement platforms 32, the two lower long-side folding plates 33 can be driven to move left and right, and by controlling the first lower lifting platform 31, the two lower long-side folding plates 33 can be driven to move up and down.

[0025] like Figure 5-6 As shown, the lower short-side folding unit 4 includes two lower short-side folding plates 44 arranged at left and right intervals and a lower short-side driving assembly. The lower short-side folding plates 44 are located on the rear side of the central support platform 11. The lower short-side driving assembly includes a second lower lifting platform 41, a first front-to-back displacement platform 42, and two second left-to-right displacement platforms 43. The second lower lifting platform 41 adopts a screw slide structure and is vertically installed on the aforementioned fixed platform. It has a fourth slide 411 that can move up and down. The fourth slide 411 of the second lower lifting platform 41 is installed on the second vertical plate 102 through a linear guide rail to achieve up-and-down sliding cooperation.

[0026] The fourth slide 411 of the second lower lifting platform 41 is equipped with a first bracket 412. The first forward and backward displacement platform 42 includes a second cylinder 423, a third cylinder 422, a first connecting plate 424, and a fifth slide 421. The fifth slide 421 is mounted on the first bracket 412 via a linear guide rail. Both the second cylinder 423 and the third cylinder 422 are arranged rearward, and their telescopic rods are connected to the first connecting plate 424. The second cylinder 423 is mounted on the first bracket 412, and the third cylinder 422 is mounted on the fifth slide 421. By setting the second cylinder 423 and the third cylinder 422, the fifth slide 421 can have two stages of forward and backward displacement.

[0027] Two second left-right displacement platforms 43 employ a screw-slide structure and are mounted laterally opposite each other on the fifth slide 421 of the first front-rear displacement platform 42. Each second left-right displacement platform 43 has a sixth slide 431 capable of left-right displacement, and the two lower short-side folding plates 44 are respectively mounted on one of these sixth slides 431. By controlling the two second left-right displacement platforms 43, the lower short-side folding plates 44 can be driven to move left and right; by controlling the first front-rear displacement platform 42, the lower short-side folding plates 44 can be driven to move back and forth, exhibiting two stages of front-rear displacement; by controlling the second lower lifting platform 41, the lower short-side folding plates 44 can be driven to move up and down.

[0028] like Figure 7As shown, the material blocking mechanism 5 includes two material blocking plates 51, a material blocking lifting drive assembly 52, and two material blocking linear drive assemblies 53. The material blocking lifting drive assembly 52 adopts a screw-slide structure, which is vertically mounted on the frame 109 and has a seventh slide 521 capable of vertical displacement. The seventh slide 521 is provided with two spaced-apart second brackets 103, located on the left and right sides of the lower short-side folding plate 44, respectively. The two material blocking linear drive assemblies 53 adopt a cylinder slide structure and have an eighth slide 531. The two material blocking linear drive assemblies 53 are horizontally mounted on one of the second brackets 103 and are symmetrically arranged. The angle between the length direction of the material blocking rod 511 and the left-right movement direction of the lower long-side folding plate 33 is an acute angle; in this embodiment, the angle is 48–52 degrees, preferably 49 degrees. Two baffle plates 51 are respectively installed on one of the eighth slides 531; a baffle rod 511 is provided at the front end of the baffle plate 51, and the length direction of the baffle rod 511 is consistent with the sliding direction of the eighth slide 531. By controlling the two baffle linear drive components 53, the two baffle rods 511 can be driven to move back and forth along the aforementioned inclined direction. By controlling the baffle lifting drive component 52, the two baffle rods 511 can be driven to move up and down.

[0029] like Figure 8-9 As shown, the upper folding mechanism includes a first upper lifting platform 6, an upper pressing unit 7, an upper long-side folding unit 8, and an upper short-side folding unit 9. The first upper lifting platform 6 adopts a cylinder slide structure and has a ninth slide 61 that can move up and down. The first upper lifting platform 6 is vertically mounted on a third bracket 104, which is mounted on a frame 109. The upper short-side folding unit 9 is fixedly mounted on the third bracket 104. A fourth bracket 105 is mounted on the ninth slide 61, and the upper long-side folding units 8 are all mounted on the fourth bracket 105. By controlling the first upper lifting platform 6, the upper long-side folding units 8 and the upper short-side folding units 9 can be driven to move up and down as a whole.

[0030] The aforementioned fourth bracket 105 can be a one-piece structure or it can be composed of multiple panels joined together.

[0031] like Figure 9 As shown, the upper pressing unit 7 includes an upper pressing plate 72, an upper lifting rod, and an upper pressing drive assembly. The upper pressing plate 72 is located directly above the central support platform 11. The upper pressing drive assembly adopts a screw-slide structure and has a tenth slide 711 that can move up and down. The entire upper pressing drive assembly is mounted on the third bracket 104 via a connecting frame 107 and is arranged vertically. In this embodiment, due to space design requirements, the tenth slide 711 is elongated, and the upper pressing plate 72 is installed at the lower end of the tenth slide 711.

[0032] like Figure 8As shown, the upper long-side folding unit 8 includes two upper long-side folding plates 83 and an upper long-side drive assembly. The upper long-side drive assembly includes a second upper lifting platform 81 and two third left-right displacement platforms 82. The second upper lifting platform 81 adopts a cylinder slide structure and has an eleventh slide 811 that can move up and down. The second upper lifting platform 81 is vertically mounted on the fourth bracket 105 and is located in front of the upper pressing drive assembly. A fifth bracket 106 is mounted on the lower end of the eleventh slide 811. The two third left-right displacement platforms 82 adopt a screw slide structure and are mounted on the fifth bracket 106 in a laterally opposite arrangement. The two third left-right displacement platforms 82 are located on the left and right sides of the upper pressing drive assembly, respectively. The two third left-right displacement platforms 82 have a twelfth slide 821 that can move left and right. The two upper long-side folding plates 83 are respectively mounted on one of the twelfth slides 821. By controlling the two third left-right displacement platforms 82, the two upper long-side folding plates 83 can be driven to move left and right. By controlling the second upper lifting platform 81, the two upper long side folding plates 83 can be driven to move up and down.

[0033] like Figure 11-13 As shown, the upper short side folding unit 9 includes an upper short side folding plate 91 and an upper short side drive assembly; the upper short side drive assembly includes a third upper lifting platform 92 and a second front-to-back displacement platform 93.

[0034] The third lifting platform 92 includes a fourth cylinder 922, a fifth cylinder 923, and a thirteenth slide 921. The fourth cylinder 922 and the fifth cylinder 923 are vertically opposite each other, with the fourth cylinder 922 above and facing downwards, and the fifth cylinder 923 below and facing upwards. Their telescopic rods are connected together via a connector 924. The fourth cylinder 922 is mounted on the fourth bracket 105. The fifth cylinder 923 is mounted on the thirteenth slide. To improve the stability of the thirteenth slide 921, it is also connected to the fourth bracket 105 via a linear guide rail. By configuring the fourth cylinder 922 and the fifth cylinder 923, the thirteenth slide 921 can have two vertical displacements.

[0035] The lower end of the thirteenth slide 921 is fitted with the sixth bracket 108. The second forward and backward displacement platform 93 includes a sixth cylinder 932, a seventh cylinder 933, a fourteenth slide 931, and a second connecting plate 934. The fourteenth slide 931 is mounted on the sixth bracket 108 via a linear guide rail. Both the sixth cylinder 932 and the seventh cylinder 933 are rearward-facing, and their extension rods are connected to the second connecting plate 934. The sixth cylinder 932 is mounted on the sixth bracket 108, and the seventh cylinder 933 is mounted on the fourteenth slide 931. By configuring the sixth cylinder 932 and the seventh cylinder 933, the fourteenth slide 931 can achieve two stages of forward and backward displacement.

[0036] The upper short-side folding plate 91 is mounted on the fourteenth slide table 931. By controlling the third upper lifting platform 92, the upper short-side folding plate 91 can be driven to move up and down, with two displacements; by controlling the second forward and backward displacement platform 93, the upper short-side folding plate 91 can be driven to move forward and backward, with two displacements.

[0037] like Figure 15 As shown, an auxiliary pressing mechanism 300 is also provided on the frame 109. The auxiliary pressing mechanism 300 includes a fourth lifting platform 302 and an auxiliary pressing plate 301. The fourth lifting platform 302 adopts a cylinder slide structure, has a fifteenth slide 3021, and is vertically installed on the table surface 110; the auxiliary pressing plate 301 is installed on the fifteenth slide 3021. By controlling the fourth lifting platform 302, the auxiliary pressing plate 301 can be driven to move up and down. Example

[0038] Based on Embodiment 1, this embodiment also provides a method for folding a trouser waistband, implemented using the folding device in Embodiment 1. The method includes: S1. Feeding: The drive-side support platform 21 descends to a position lower than the center support platform 11; the front end of the drive-side long-side folding plate 33 is moved to directly above the center support platform 11; the negative pressure source is turned on, and the lower piece of fabric 203 is sucked tightly to the center support platform 11 by the negative pressure.

[0039] At this point, the auxiliary pressure plate 301 can be driven to move down, pressing the waistband fabric firmly onto the table 110 to prevent the overall fabric from shifting during the subsequent folding process.

[0040] Place the lower piece of fabric 203 on the central support platform 11 and below the lower long side fold plate 33; drive the long side fold plate to press down to press the lower piece of fabric 203 firmly onto the central support platform 11; at this time, the lower short side fold plate 44 is located below the short fold of the lower piece of fabric 203.

[0041] Drive the upper short side folding plate 91 forward two segments to above the lower long side folding plate 33; drive the material stop rod 511 forward to between the upper short side folding plate 91 and the lower long side folding plate 33; then place the upper piece of fabric 202 on the upper surface of the upper short side folding plate 91, and make the front corner of the trouser body fabric 201 drape over the upper surface of the material stop rod 511; drive the upper pressure plate 72 downward to press the upper piece of fabric 202 tightly against the upper short side folding plate 91.

[0042] S2, Lower short folded edge 2032 folded material: The lower short edge folding plate 44 is driven to move upward to push the lower short edge 2032 of the lower fabric 203 to bend upward appropriately; then the lower short edge folding plate 44 is driven to move forward to fold the upward-bent portion of the lower short edge 2032 inward; at this time, the stop rod 511 is located above the inward-folded portion of the lower short edge 2032; then the lower short edge folding plate 44 is driven to move laterally away from the lower fabric 203, and then the lower short edge folding plate 44 is driven to move downward to fold the lower short edge 2032 inward. The inner fold of 32 is pressed against the lower long side fold plate 33, and then the lower short side fold plate 44 is driven to move in the opposite direction so that the inner fold of the lower short fold plate 2032 is slightly gathered from both sides to the middle; then the lower long side fold plate 33 is driven to move away from the central support platform 11, then moves down, and then moves closer to the central support platform 11 until the front end of the lower long side fold plate 33 is above the side support platform 21 on the corresponding side and close to the side of the central support platform 11.

[0043] In the above steps, the inward fold of the lower short fold 2032 is slightly gathered from both sides towards the middle, which makes the edge of the fabric neater when the lower long fold 2031 is folded down later. If the two sides of the lower short fold 2032 are flush with the edge of the lower long fold 2031 after being folded inward, then when the lower long fold 2031 is folded inward later, the two sides of the inward fold of the lower short fold 2032 will extend beyond the edge of the lower long fold 2031.

[0044] S3, Longer folded edge, 2021 folded material: Drive the upper long side folding plate 83 to move down and bend the upper long folding edge 2021 of the upper fabric 202 downward appropriately; then drive the upper long side folding plate 83 to make a first displacement in the direction close to the central support platform 11 so as to fold the part of the upper long folding edge 2021 that is bent upward inward; at this time, the part of the upper long folding edge 2021 that is folded inward is located above the material stop rod 511; The upper short-side folding plate 91 is driven to move downward, and at the same time the upper pressure plate 72 also moves downward synchronously; then the upper long-side folding plate 83 is driven to continue the second stage of displacement.

[0045] S4, short folded edge, 2022 folded material: The upper short edge folding plate 91 is driven to move backward by two displacements, upward by one displacement, and forward by one displacement, so that the upper short edge folding plate 91 is positioned above the upper short folded edge 2022 of the upper fabric 202; then the upper short edge folding plate 91 is driven to move downward by two displacements, so that the upper short folded edge 2022 of the upper fabric 202 is bent downward appropriately; then the upper short edge folding plate 91 is driven to move forward by one displacement, so that the downwardly bent part of the upper short folded edge 2022 is folded inward; at this time, the inwardly folded part of the upper short folded edge 2022 is located below the material stop rod 511.

[0046] S5, Lower long folded edge 2031 folded material: Drive the lower long side folding plate 33 to move upward so as to bend the lower long folding edge 2031 of the lower fabric 203 upward appropriately; then drive the upper short side folding plate 91 to move backward a certain distance; then drive the lower long side folding plate 33 back to the top of the central support platform 11 so as to fold the upwardly bent part of the lower long folding edge 2031 inward; at this time, the inwardly folded part of the lower long folding edge 2031 is located above the material stop rod 511; The long side folding plate is driven to move away from the central support platform 11 and then moves upward; at this time, the upper pressure plate 72 can continue to move downward and press against the lower long side folding plate 33.

[0047] By setting the baffle rod 511, the waistband fabric can be prevented from being covered when the short fold 2032 is folded inward, and when the long fold 2031 is folded inward, the upper short fold 2022 and upper long fold 2021, which have already been folded inward, can be given some support, making it easier to fold the lower long fold 2031 inward and fasten it between the folded parts of the upper short fold 2022 and upper long fold 2021, thereby making the edge of the folded fabric smoother.

[0048] S6, Finishing: Drive the material stop rod 511 to retract; After the upper short-side folding plate 91 is driven to move forward and backward a certain distance several times, it continues to move backward a certain distance, and then moves upward two distances. The first lifting platform drives the upper short-side folding unit 9 and the upper long-side folding unit 8 to move upward as a whole. The lower short-side folding plate 44 is driven to retract two segments of displacement. Drive the lower long side folding plate 33 to move away from the central support platform 11 to the initial position. At this time, the upper pressure plate 72 can continue to move down and press the waistband part onto the central support platform 11. The drive-side support platform 21 moves upward to a position flush with the central support platform 11, and drives the stop rod 511 downward; Drive the two long-side folding plates to move down to a position flush with the side support platform 21; Drive the upper pressure plate 72 to move upward; Disconnecting the negative pressure source can simultaneously drive the auxiliary pressure plate to move upwards.

[0049] In the above steps, driving the upper short side folding plate 91 to move forward and backward a certain distance several times is to ensure that the upper short folding plate 2022 can be folded into place.

[0050] In the above steps, the upward movement of the upper short-side folding unit 9 and the upper long-side folding unit 8, the upward movement of the upper pressure plate 72, and the downward movement of the material stop rod 511 are mainly to make way for the material transfer device 400. Additionally, the upward movement of the side support platform 21 to a position flush with the central support platform 11 and the downward movement of the two long-side folding plates to a position flush with the side support platform 21 are primarily to create a transition surface between the upper surface of the central support platform 11 and the table surface 110, thereby facilitating the smooth rightward movement of the material transfer plate 401. Generally, to ensure a smooth material transfer process, a pressure strip with a rough surface is provided at the bottom of the material transfer plate 401. This pressure strip increases friction by contacting the fabric. After the side support platform 21 is installed and moved upward, it prevents the pressure strip from impacting the side of the central support platform 11.

[0051] After the material transfer is completed, a reset is required. Specifically, the first lifting platform drives the upper short-side folding unit 9 and the upper long-side folding unit 8 to move down to the lowest position; drives the upper short-side folding plate 91 to move forward by a certain displacement; drives the side support platform 21 to move down and drives the material blocking rod 511 to move up; and drives the lower long-side folding plate 33 to move up to a position higher than the central support platform 11.

[0052] It is worth noting that when folding a double-piece waistband, two lower short side folding plates 44, two lower long side folding plates 33, two upper long side folding plates 83, two material stoppers 511, and two side support platforms 21 are required; when folding a single-piece waistband, only one lower short side folding plate 44, one lower long side folding plate 33, one upper long side folding plate 83, one material stopper 511, and one side support platform 21 are required.

[0053] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A waistband folding device, characterized in that, Includes a frame (109), and an upper folding mechanism, a lower folding mechanism, and a material stop mechanism (5) mounted on the frame (109); wherein, The lower folding mechanism includes a lower support unit (1), a lower auxiliary support unit (2), a lower long-side folding unit (3), and a lower short-side folding unit (4); wherein, the lower support unit (1) includes a central support platform (11) and a first support platform driving assembly; the lower auxiliary support unit (2) includes two side support platforms (21) and a second support platform driving assembly (24), the two side support platforms (21) being located on the left and right sides of the central support platform (11) respectively; the first support platform driving assembly is used to drive the central support platform (11) to move up and down; the second support platform driving assembly (24) is configured to drive the side support platforms (21) to move up and down; the upper surface of the central support platform (11) is provided with a negative pressure hole (111), and the interior of the central support platform (11) is provided with a negative pressure channel communicating with the negative pressure hole (111), the negative pressure channel being connected to a negative pressure source; The lower long side folding unit (3) includes two lower long side folding plates (33) and a lower long side driving assembly. The two lower long side folding plates (33) are located on the other side of the two side support platforms (21) relative to the central support platform (11). The lower long side driving assembly is configured to drive the two lower long side folding plates (33) to move up and down and left and right. The lower short side folding unit (4) includes two lower short side folding plates (44) spaced apart on the left and right sides and a lower short side drive assembly. The two lower short side folding plates (44) are located on the rear side of the central support platform (11). The lower short side drive assembly is configured to drive the lower short side folding plates (44) to move up and down, forward and backward, and left and right. The upper folding mechanism is located above the central support platform (11) and includes a first upper lifting platform (6), an upper pressing unit (7), an upper long side folding unit (8), and an upper short side folding unit (9); wherein, the first upper lifting platform (6) is configured to drive the upper short side folding unit (9) and the upper long side folding unit (8) to move up and down as a whole; The upper pressing unit (7) includes an upper pressing plate (72) and an upper pressing drive assembly. The upper pressing plate (72) is located directly above the central support platform (11), and the upper pressing drive assembly is configured to drive the upper pressing plate (72) to move up and down. The upper long side folding unit (8) includes an upper long side folding plate (83) and an upper long side driving assembly. The two upper long side folding plates (83) are located on the left and right sides of the upper pressure plate (72). The upper long side driving assembly is configured to drive the two upper long side folding plates (83) to move up and down and left and right. The upper short side folding unit (9) is located behind the upper long side folding unit (8) and includes an upper short side folding plate (91) and an upper short side driving assembly. The upper short side driving assembly is configured to drive the upper short side folding plate (91) to move up and down and forward and backward. The material blocking mechanism (5) includes two material blocking plates (51), a material blocking lifting drive assembly (52), and two material blocking linear drive assemblies (53); wherein, the two material blocking plates (51) are respectively located on the left and right sides of the lower short side folding plate (44), and a material blocking rod (511) is provided at the front end of the material blocking plate (51). The angle between the length direction of the material blocking rod (511) and the left and right moving direction of the lower long side folding plate (33) is an acute angle; the two material blocking linear drive assemblies (53) are configured to drive one of the material blocking plates (51) to move linearly along the length direction of the material blocking rod (511); the material blocking lifting drive assembly (52) is configured to drive the material blocking linear drive assembly (53) to move up and down, thereby driving the material blocking rod (511) to move up and down.

2. The waistband folding device as described in claim 1, characterized in that, The angle between the length direction of the baffle rod (511) and the left-right movement direction of the lower long side folding plate (33) is 48 to 52 degrees.

3. The waistband folding device as described in claim 1, characterized in that, The frame (109) has a fixed platform (101) and a first vertical plate (12) is provided on the fixed platform (101); the first support platform driving assembly includes a first cylinder (13), which is vertically installed on the first vertical plate (12) and located at the upper end; the central support platform (11) is installed on the upper end of the first cylinder (13) and is driven by the first cylinder (13) to move up and down.

4. The waistband folding device as described in claim 1, characterized in that, The second support platform drive assembly (24) adopts a cylinder slide structure and is vertically mounted on the frame (109). It has a first slide (22) that can move up and down. The first slide (22) has two spaced support rods (23) on the left and right sides respectively. The two support rods (23) extend to the left and right sides of the central support platform (11) respectively. The two side support platforms (21) are respectively mounted on one of the support rods (23), so that the two side support platforms (21) can also be located on the left and right sides of the central support platform (11) respectively.

5. A waistband folding device as described in claim 3, characterized in that, The lower long side drive assembly includes a first lower lifting platform (31) and two first left and right displacement platforms (32) respectively set on the left and right sides of the central support platform (11); the first lower lifting platform (31) adopts a screw slide structure and is vertically installed on the fixed platform mentioned above, and has a first slide (22) that can move up and down; a second vertical plate (102) is provided on the fixed platform, and the second slide (311) of the first lower lifting platform (31) is installed on the second vertical plate (102) through a linear guide rail to achieve up and down sliding cooperation; a support plate (312) is provided at the upper end of the first slide (22); both first left and right displacement platforms (32) adopt a screw slide structure and are installed on the support plate (312) in a horizontally opposite manner, and both first left and right displacement platforms (32) have a third slide (321) that can move left and right; the two lower long side folding plates (33) are each installed on the third slide (321) of the corresponding side of the first left and right displacement platform (32).

6. A waistband folding device as described in claim 3, characterized in that, The lower short-side drive assembly includes a second lower lifting platform (41), a first front-to-back displacement platform (42), and two second left-to-right displacement platforms (43); wherein, the second lower lifting platform (41) adopts a screw slide structure, which is vertically mounted on the fixed platform and has a fourth slide (411) that can move up and down; the fourth slide (411) is mounted on the second vertical plate (102) via a linear guide rail; The upper end of the fourth slide (411) of the second lower lifting platform (41) is equipped with a first bracket (412). The first front-to-back displacement platform (42) includes a second cylinder (423), a third cylinder (422), a first connecting plate (424), and a fifth slide (421). The fifth slide (421) is mounted on the first bracket (412) via a linear guide rail. The second cylinder (423) and the third cylinder (422) are both arranged rearward, and the telescopic rods of the second cylinder (423) and the third cylinder (422) are both connected to the first connecting plate (424). The second cylinder (423) is mounted on the first bracket (412), and the third cylinder (422) is mounted on the fifth slide (421).

7. A waistband folding device as described in claim 1, characterized in that, The first upper lifting platform (6) adopts a cylinder slide structure and has a ninth slide (61) that can move up and down; the first upper lifting platform (6) is vertically mounted on the third bracket (104), and the third bracket (104) is mounted on the frame (109); the upper short side folding unit (9) is fixedly mounted on the third bracket (104); a fourth bracket (105) is mounted on the ninth slide (61), and the upper short side folding unit (9) and the upper long side folding unit (8) are both mounted on the fourth bracket (105).

8. A waistband folding device as described in claim 7, characterized in that, The upper long-side folding unit (8) includes two upper long-side folding plates (83) and an upper long-side driving assembly; the upper long-side driving assembly includes a second upper lifting platform (81) and two third left-right displacement platforms (82); the second upper lifting platform (81) adopts a cylinder slide structure and has an eleventh slide (811) that can move up and down; the second upper lifting platform (81) is vertically mounted on the fourth bracket (105) and located in front of the upper pressing drive assembly; the lower end of the eleventh slide (811) is equipped with a fifth bracket (106), and the two third left-right displacement platforms (82) adopt a screw slide structure and are installed on the fifth bracket (106) in a horizontally opposite manner; the two third left-right displacement platforms (82) are located on the left and right sides of the upper pressing drive assembly respectively; the two third left-right displacement platforms (82) have a twelfth slide (821) that can move left and right; the two upper long-side folding plates (83) are respectively mounted on one of the twelfth slides (821).

9. A waistband folding device as described in claim 7, characterized in that, The upper short-side drive assembly includes a third upper lifting platform (92) and a second front-to-back displacement platform (93); the third upper lifting platform (92) includes a fourth cylinder (922), a fifth cylinder (923) and a thirteenth slide (921); the fourth cylinder (922) and the fifth cylinder (923) are arranged vertically opposite each other, with the fourth cylinder (922) on top and facing downwards, and the fifth cylinder (923) on the bottom and facing upwards, and their telescopic rods are connected together by a connector (924); the fourth cylinder (922) is mounted on the fourth bracket (105); the fifth cylinder (923) is mounted on the thirteenth slide (921); The lower end of the thirteenth slide (921) is equipped with a sixth bracket (108); the second front-to-back displacement platform (93) includes a sixth cylinder (932), a seventh cylinder (933), a fourteenth slide (931), and a second connecting plate (934); wherein, the fourteenth slide (931) is mounted on the sixth bracket (108) via a linear guide rail; the sixth cylinder (932) and the seventh cylinder (933) are both arranged rearward, and the telescopic rods of the sixth cylinder (932) and the seventh cylinder (933) are both connected to the second connecting plate (934); the sixth cylinder (932) is mounted on the sixth bracket (108), and the seventh cylinder (933) is mounted on the fourteenth slide (931); The upper short side folding plate (91) is installed on the fourteenth slide (931).

10. A waistband folding device as described in claim 1, characterized in that, It also includes an auxiliary pressing mechanism, which includes a fourth lifting platform (302) and an auxiliary pressing plate (301). The auxiliary pressing plate (301) is located on the front side of the central support platform, and the fourth lifting platform (302) is used to drive the auxiliary pressing plate (301) to move up and down.

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