Automatic underwear forming apparatus

The automated folding and heating bonding mechanism enables highly efficient and automated production of underwear, solving the problem of labor-intensive production in existing technologies, improving production efficiency and reducing costs.

WO2026143412A1PCT designated stage Publication Date: 2026-07-09

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Filing Date
2024-12-31
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

The production process of underwear requires a complicated procedure and relies on a large amount of auxiliary equipment and manpower, resulting in high labor and material costs and low production efficiency.

Method used

Employing folding, bonding, and conveying mechanisms, the folding and heating bonding of the sheet material is automated to form the shape of underwear, reducing manual intervention.

Benefits of technology

It improves the production efficiency of underwear, reduces production costs, and produces high-quality underwear quickly.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2024144158_09072026_PF_FP_ABST
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Abstract

Disposed in the present invention is an automatic underwear forming apparatus, comprising a folding mechanism, a bonding mechanism, and a conveying mechanism. The folding mechanism comprises a worktable for placing a sheet to be processed. The sheet comprises a base portion and a first bending portion, and a second bending portion is provided at one end of the base portion. The first bending portion is connected to the second bending portion via a connecting portion. The folding mechanism is configured to keep the first bending portion and the second bending portion stacked above the base portion. The conveying mechanism is configured to convey the worktable below the bonding mechanism. The bonding mechanism is configured to heat and bond the first bending portion and the second bending portion together. In the present application, the folding mechanism, the bonding mechanism, and the conveying mechanism enable the sheet to be automatically folded and heated to be directly formed into an underwear shape with a high forming quality and a high processing speed. The entire production process is fully automated without manual intervention, which significantly improves the underwear production efficiency and reduces production costs.
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Description

Automatic underwear forming equipment Technical Field

[0001] This invention relates to the field of garment manufacturing equipment, and more specifically to an automatic underwear forming equipment. Background Technology

[0002] Currently, in the production of underwear, the fabric needs to be laid out on the cutting table in a certain number of layers and direction. An automatic fabric spreading machine is usually used to spread the fabric to ensure the flatness and uniform tension of the fabric. Then, the fabric is cut: using cutting equipment such as cutting machines or laser cutting machines, the fabric is cut into various parts of the underwear according to the shape and size of the pattern, such as the front piece, back piece, crotch, waistband, and leg openings. Finally, the cut fabric parts are sewn together, usually using a sewing machine, such as straight stitch, overlock stitch, or coverstitch, to sew the front piece, back piece, and crotch together to form the basic shape of the underwear. Technical issues

[0003] As can be seen from the above process, the production of underwear in the current technology requires a complicated process, a large amount of auxiliary equipment and manual operation. It is a typical labor-intensive industry that requires a huge investment of human and material resources and has low production efficiency. Technical solutions

[0004] To address the aforementioned problems, this invention provides an automatic underwear forming device, comprising a folding mechanism and a bonding mechanism. A conveying mechanism is provided at the bottom of the folding mechanism. The folding mechanism includes a worktable for placing a sheet material to be processed. The sheet material includes a substrate portion, with first bending portions on both sides of the substrate portion and a second bending portion at one end of the substrate portion. The first bending portions and the second bending portions are connected by a connecting portion. The folding mechanism is used to keep the first bending portions and the second bending portions stacked on top of the substrate portion. The conveying mechanism is used to convey the worktable to the area below the bonding mechanism. The bonding mechanism is used to heat and bond the first bending portions and the second bending portions together.

[0005] Furthermore, a support arm is provided above the workbench, the support arm being located between the substrate portion and the first bending portion. First bending devices are provided on both sides of the workbench, the first bending devices being used to bend the first bending portion relative to the substrate portion. A second bending device is provided on one side of the bottom edge of the workbench, the second bending device being used to bend the second bending portion relative to the substrate portion, so that the second bending portion is located above the substrate portion, while keeping the first bending portion and the second bending portion stacked together above the substrate portion.

[0006] Furthermore, the first bending device includes a first movable plate. When the sheet is placed on the workbench, the first movable plate is located below the first bending portion. The first movable plate is axially connected to both sides of the workbench. A first propulsion cylinder is provided obliquely below the outer side of the first movable plate. The drive end of the first propulsion cylinder is connected to the outer side of the first movable plate.

[0007] Furthermore, a second movable plate is provided on the outside of the first movable plate. When the sheet is placed on the workbench, the second movable plate is located below the first bent portion, and the second movable plate is axially connected to both sides of the first movable plate.

[0008] Furthermore, the second bending device includes a third movable plate, which is connected to the worktable via a hinge. When the sheet is placed on the worktable, the third movable plate is located below the second bending portion, and the connecting portion is located above the hinge. A second propulsion cylinder is provided at the bottom of the worktable, and a first connecting plate is provided at the bottom of the third movable plate. The first connecting plate is connected to the drive end of the second propulsion cylinder.

[0009] Furthermore, when the second propulsion cylinder bends the third movable plate along the hinge axis inside the worktable, the third movable plate comes into contact with the support arm.

[0010] Furthermore, the first bending device has a first support plate at its bottom, the first movable plate and the first propulsion cylinder are mounted on the first support plate, a first rotary motor is provided at the bottom of the first support plate, a lead screw is connected to the first rotary motor, a connecting seat is sleeved on the lead screw, a first guide rail is provided on one side of the connecting seat, a first sliding seat is provided on the first guide rail, the first sliding seat is connected to the connecting seat, and the first support plate is mounted on the first sliding seat.

[0011] Furthermore, the bonding mechanism includes a first bracket, a second support plate is installed on the top of the first bracket, and two lifting cylinders are respectively installed on the second support plate. When the worktable is located below the bonding mechanism, the lifting cylinders are located directly above the support arm. A second connecting plate is provided at the bottom of the lifting cylinders, a heating plate is provided at the bottom of the connecting plate, and a spring is provided between the heating plate and the second connecting plate.

[0012] Furthermore, the conveying mechanism includes two parallel second guide rails disposed at the bottom of the folding mechanism, a second sliding seat disposed on the second guide rails, the folding mechanism being mounted on the second sliding seat, and a third propulsion cylinder disposed between the second guide rails, the drive end of the third propulsion cylinder being connected to the folding mechanism.

[0013] Furthermore, a visual inspection device is provided above the folding mechanism. Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This application utilizes a folding mechanism, a bonding mechanism, and a conveying mechanism to allow the sheet material to be automatically folded and heated, directly forming it into the shape of underwear. The forming quality is high and the speed is fast. The entire process is fully automated without human intervention, greatly improving the efficiency of underwear production and saving production costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is a basic structural diagram of the sheet material of the present invention;

[0018] Figure 2 is a structural diagram of the sheet material of the present invention after being bent by the first bending device.

[0019] Figure 3 is a structural diagram of the sheet material of the present invention after being bent by the folding mechanism;

[0020] Figure 4 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 5 is a schematic diagram of the folding mechanism of the present invention;

[0022] Figure 6 is a schematic diagram of the structure of the first folding device and the second folding device of the present invention;

[0023] Figure 7 is a structural schematic diagram of the folding mechanism of the present invention from another angle;

[0024] Figure 8 is a schematic diagram of the bonding structure of the present invention;

[0025] Figure 9 is a schematic diagram of the conveying mechanism of the present invention.

[0026] The reference numerals and names in the figure are as follows:

[0027] Folding mechanism 100, bonding mechanism 200, conveying mechanism 300, worktable 110, sheet 10, substrate part 11, first bending part 12, second bending part 13, connecting part 14, support arm 120, first bending device 130, second bending device 140, first movable plate 131, first propulsion cylinder 132, second movable plate 133, third movable plate 141, hinge 142, second propulsion cylinder 143, first connecting plate 144, first support plate 134, first rotary motor 135, lead screw 136, connecting seat 137, first guide rail 138, first sliding seat 139, first bracket 210, second support plate 220, lifting cylinder 230, second connecting plate 240, heating plate 250, spring 260, second guide rail 310, second sliding seat 320, third propulsion cylinder 330, and vision inspection device 400. Specific embodiments of the present invention

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The present invention will now be described in more detail. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.

[0030] In the description of this invention, it should be noted that directional terms such as "front," "rear," "up," "down," "left," "right," "horizontal," "vertical," "horizontal," and "top," "bottom," etc., indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner or outer contours of each component itself. In the description of this invention, it should be noted that the use of terms such as "first" and "second" to define components is merely for the convenience of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0032] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0033] The preferred embodiments of the present invention will be further described with reference to the accompanying drawings. As shown in FIG. 4, an automatic underwear forming device includes a folding mechanism 100 and a bonding mechanism 200. A conveying mechanism 300 is provided at the bottom of the folding mechanism 100. The folding mechanism 100 includes a worktable 110 for placing a sheet 10 to be processed. As shown in FIG. 1, the sheet 10 includes a substrate portion 11. A first bending portion 12 is provided in the substrate portion 11, and a second bending portion 13 is provided at one end of the substrate portion 11. The first bending portion 12 and the second bending portion 13 are connected by a connecting portion 14. As shown in FIG. 3, the folding mechanism 100 is used to keep the first bending portion 12 and the second bending portion 13 stacked on top of the substrate portion 11. The conveying mechanism 300 is used to convey the worktable 110 to the bottom of the bonding mechanism 200. The bonding mechanism 200 is used to heat and bond the first bending portion 12 and the second bending portion 13 together.

[0034] In the working state of this embodiment, as shown in Figure 1, the sheet material 10 to be processed is first placed on the workbench 110, and then the folding mechanism 100 is started. As shown in Figure 2, the folding mechanism 100 first bends the first bending portion 12 relative to the substrate portion 11, and then, as shown in Figure 3, bends the second bending portion 13 relative to the substrate portion 11, so that the second bending portion 13 is above the substrate portion 11, while keeping the first bending portion 12 and the second bending portion 13 stacked together above the substrate portion 11. Next, the conveying mechanism 300 is started to convey the workbench 110 to the area below the bonding mechanism 200. During this process, the folding structure keeps the first bending portion 12 and the second bending portion 13 stacked above the substrate portion 11. Finally, the bonding mechanism 200 is started to heat and bond the stacked first bending portion 12 and the second bending portion 13 together to form underwear.

[0035] Compared with existing technologies, this application utilizes a folding mechanism 100, a bonding mechanism 200, and a conveying mechanism 300 to allow the sheet 10 to be automatically folded and heated to be directly formed into the shape of underwear. The forming quality is high and the speed is fast. The entire process is fully automated without human intervention, which greatly improves the efficiency of underwear production and saves production costs.

[0036] Further, based on the above embodiments, as shown in FIG5, a support arm 120 is provided above the workbench 110, the support arm 120 is located between the base material part 11 and the first bending part 12, and a first bending device 130 is provided on both sides of the workbench 110, as shown in FIG2. The first bending device 130 is used to bend the first bending part 12 relative to the base material part 11. A second bending device 140 is provided on one side of the bottom edge of the workbench 110, as shown in FIG3. The second bending device 140 is used to bend the second bending part 13 relative to the base material part 11, so that the second bending part 13 is located above the base material part 11, while keeping the first bending part 12 and the second bending part 13 stacked together above the base material part 11.

[0037] Further, based on the above embodiments, as shown in FIG6, the first bending device 130 includes a first movable plate 131. When the sheet 10 is placed on the workbench 110, the first movable plate 131 is located below the first bending portion 12. The first movable plate 131 is axially connected to both sides of the workbench 110. A first propulsion cylinder 132 is provided obliquely below the outer side of the first movable plate 131. The driving end of the first propulsion cylinder 132 is connected to the outer side of the first movable plate 131. When the first propulsion cylinder 132 is activated, the first propulsion cylinder 132 bends the first movable plate 131 toward the inner side of the workbench 110, thereby causing the first bending portion 12 to bend relative to the substrate.

[0038] In some embodiments, as shown in FIG6, a second movable plate 133 is provided on the outside of the first movable plate 131. When the sheet 10 is placed on the worktable 110, the second movable plate 133 is located below the first bent portion 12. The second movable plate 133 is axially connected to both sides of the first movable plate 131. When the first push cylinder 132 bends the first movable plate 131 toward the inside of the worktable 110, the second movable plate 133 can bend the first bent portion 12 a second time, so that the outside of the first bent portion 12 can be placed on the support arm 120. This makes it easier to keep the first bent portion 12 and the second bent portion 13 stacked on top of the substrate portion 11.

[0039] Further, based on the above embodiments, as shown in FIG6, the second bending device 140 includes a third movable plate 141, which is connected to the worktable 110 via a hinge 142, thereby forming an axial connection between the two. When the sheet 10 is placed on the worktable 110, the third movable plate 141 is located below the second bending portion 13, and the connecting portion 14 is located above the hinge 142. A second propulsion cylinder 143 is provided at the bottom of the worktable 110, and a first connecting plate 144 is provided at the bottom of the third movable plate 141. The first connecting plate 144 is connected to the driving end of the second propulsion cylinder 143. When the second propulsion cylinder 143 is activated, the second propulsion cylinder 143 can bend the third movable plate 141 with the hinge 142 as the axis inside the worktable 110, thereby causing the second bending portion 13 to bend relative to the substrate.

[0040] In some embodiments, when the second propulsion cylinder 143 bends the third movable plate 141 inside the worktable 110 with the hinge 142 as the axis, the third movable plate 141 comes into contact with the support arm 120, thereby making the first bent portion 12 and the second bent portion 13 come into contact on the support arm 120, so that the first bent portion 12 and the second bent portion 13 can be kept stacked on top of the base material portion 11.

[0041] In some embodiments, as shown in FIG7, a first support plate 134 is provided at the bottom of the first bending device 130. The first movable plate 131 and the first propulsion cylinder 132 are mounted on the first support plate 134. A first rotary motor 135 is provided at the bottom of the first support plate 134. A lead screw 136 is connected to the first rotary motor 135. A connecting seat 137 is sleeved on the lead screw 136. A first guide rail 138 is provided on one side of the connecting seat 137. A first sliding seat 139 is provided on the first guide rail 138. A sliding seat 139 is connected to a connecting seat 137. The first support plate 134 is mounted on the first sliding seat 139. When the first rotary motor 135 starts, it drives the lead screw 136 to rotate, thereby driving the connecting seat 137 to move along the lead screw 136. At the same time, it also drives the first sliding seat 139 to move along the first guide rail 138, thereby driving the first support plate 134 to move relative to the worktable 110. This allows the distance between the first bending device 130 and the worktable 110 to be adjusted, so that it can accommodate various sizes of sheets 10.

[0042] Further, based on the above embodiments, as shown in Figure 8, the bonding mechanism 200 includes a first bracket 210, a second support plate 220 is installed on the top of the first bracket 210, and two lifting cylinders 230 are respectively installed on the second support plate 220. When the worktable 110 is located below the bonding mechanism 200, the lifting cylinders 230 are located directly above the support arm 120. A second connecting plate 240 is provided at the bottom of the lifting cylinders 230, a heating plate 250 is provided at the bottom of the connecting plate, and a spring 260 is provided between the heating plate 250 and the second connecting plate 240. After the folding mechanism 100 completes its work, the workbench 110 moves to below the bonding mechanism 200 via the conveying mechanism 300. Then, the lifting cylinder 230 is activated to drive the second connecting plate 240 and the heating plate 250 to descend simultaneously until the heating plate 250 contacts the support arm 120. Since the first bent portion 12 and the second bent portion 13 form contact on the support arm 120, and the sheet material 10 involved in this application also has thermoplastic yarns, the heating plate 250 can bond the first bent portion 12 and the second bent portion 13 together after heating them, thereby forming an underwear shape. The function of the spring 260 is to reduce the impact of the heating plate 250 on the support arm 120.

[0043] Further, based on the above embodiment, as shown in Figure 9, the conveying mechanism 300 includes two parallel second guide rails 310 disposed at the bottom of the folding mechanism 100. A second sliding seat 320 is disposed on the second guide rails 310, and the folding mechanism 100 is mounted on the second sliding seat 320. A third propulsion cylinder 330 is disposed between the second guide rails 310. The driving end of the third propulsion cylinder 330 is connected to the folding mechanism 100. When it is necessary to move the folding mechanism 100 below the fitting mechanism 200, the third propulsion cylinder 330 is activated to pull the folding mechanism 100 to move along the second guide rails 310.

[0044] In some embodiments, as shown in FIG4, a visual inspection device 400 is provided above the folding mechanism 100. The visual inspection device 400 is used to detect and evaluate the bending effect of the first bending device 130 and the second bending device 140.

[0045] The details of the exemplary embodiments described above are provided, and the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the invention.

Claims

1. An automatic underwear forming device, characterized in that, The assembly includes a folding mechanism (100) and a bonding mechanism (200). A conveying mechanism (300) is provided at the bottom of the folding mechanism (100). The folding mechanism (100) includes a worktable (110) for placing a sheet (10) to be processed. The sheet (10) includes a substrate portion (11). First bending portions (12) are provided on both sides of the substrate portion (11), and a second bending portion (13) is provided at one end of the substrate portion (11). 3) The first bending portion (12) and the second bending portion (13) are connected by a connecting portion (14). The folding mechanism (100) is used to keep the first bending portion (12) and the second bending portion (13) stacked on top of the substrate portion (11). The conveying mechanism (300) is used to convey the worktable (110) to the bottom of the bonding mechanism (200). The bonding mechanism (200) is used to heat and bond the first bending portion (12) and the second bending portion (13) together.

2. The automatic underwear forming equipment according to claim 1, characterized in that, A support arm (120) is provided above the workbench (110). The support arm (120) is located between the base material part (11) and the first bending part (12). A first bending device (130) is provided on both sides of the workbench (110). The first bending device (130) is used to bend the first bending part (12) relative to the base material part (11). A second bending device (140) is provided on one side of the bottom edge of the workbench (110). The second bending device (140) is used to bend the second bending part (13) relative to the base material part (11) so that the second bending part (13) is located above the base material part (11), while keeping the first bending part (12) and the second bending part (13) stacked together above the base material part (11).

3. The automatic underwear forming equipment according to claim 2, characterized in that, The first bending device (130) includes a first movable plate (131). When the sheet (10) is placed on the workbench (110), the first movable plate (131) is located below the first bending part (12). The first movable plate (131) is axially connected to both sides of the workbench (110). A first propulsion cylinder (132) is provided on the outer side of the first movable plate (131) at an angle below it. The driving end of the first propulsion cylinder (132) is connected to the outer side of the first movable plate (131).

4. The automatic underwear forming equipment according to claim 3, characterized in that, A second movable plate (133) is provided on the outside of the first movable plate (131). When the sheet (10) is placed on the workbench (110), the second movable plate (133) is located below the first bent portion (12), and the second movable plate (133) is axially connected to both sides of the first movable plate (131).

5. The automatic underwear forming equipment according to claim 2, characterized in that, The second bending device (140) includes a third movable plate (141), which is connected to the workbench (110) via a hinge (142). When the sheet (10) is placed on the workbench (110), the third movable plate (141) is located below the second bending part (13), and the connecting part (14) is located above the hinge (142). A second propulsion cylinder (143) is provided at the bottom of the workbench (110), and a first connecting plate (144) is provided at the bottom of the third movable plate (141). The first connecting plate (144) is connected to the driving end of the second propulsion cylinder (143).

6. The automatic underwear forming equipment according to claim 5, characterized in that, When the second propulsion cylinder (143) bends the third movable plate (141) along the hinge (142) on the inner side of the worktable (110), the third movable plate (141) comes into contact with the support arm (120).

7. The automatic underwear forming equipment according to claim 3, characterized in that, The first bending device (130) is provided with a first support plate (134) at the bottom. The first movable plate (131) and the first propulsion cylinder (132) are mounted on the first support plate (134). A first rotary motor (135) is provided at the bottom of the first support plate (134). A lead screw (136) is connected to the first rotary motor (135). A connecting seat (137) is sleeved on the lead screw (136). A first guide rail (138) is provided on one side of the connecting seat (137). A first sliding seat (139) is provided on the first guide rail (138). The first sliding seat (139) is connected to the connecting seat (137). The first support plate (134) is mounted on the first sliding seat (139).

8. The automatic underwear forming equipment according to claim 1, characterized in that, The bonding mechanism (200) includes a first bracket (210), a second support plate (220) is installed on the top of the first bracket (210), and two lifting cylinders (230) are installed on the second support plate (220). When the worktable (110) is located below the bonding mechanism (200), the lifting cylinder (230) is located directly above the support arm (120). A second connecting plate (240) is provided at the bottom of the lifting cylinder (230), and a heating plate (250) is provided at the bottom of the connecting plate. A spring (260) is provided between the heating plate (250) and the second connecting plate (240).

9. The automatic underwear forming equipment according to claim 1, characterized in that, The conveying mechanism (300) includes two parallel second guide rails (310) disposed at the bottom of the folding mechanism (100), a second sliding seat (320) disposed on the second guide rails (310), the folding mechanism (100) being mounted on the second sliding seat (320), and a third propulsion cylinder (330) disposed between the second guide rails (310), the driving end of the third propulsion cylinder (330) being connected to the folding mechanism (100).

10. The automatic underwear forming equipment according to claim 1, characterized in that, A visual inspection device (400) is provided above the folding mechanism (100).