Automatic positioning and cutting device for TPU (Thermoplastic Polyurethane) hot melt adhesive sheets of underwear
By designing automated positioning and cutting devices in the underwear TPU hot -melt film cutting device, using multiple sets of rotating racks and self -adjusting speed transmission rolling rollers, combined with electric push rods and splints to stretch and faste it The problem of uneven and low cutting accuracy achieves efficient and accurate tailoring effects.
Patent Information
- Application Number
- CN202411530462.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-01-28
AI Technical Summary
The existing underwear TPU hot melt film cutting device has velocity fluctuations during the operation of the transmission roller, resulting in uneven film tension and wrinkles, which affects the cutting accuracy and product quality.
Design an automated positioning tailoring device. By setting up multiple groups of rotating racks and self -adjusting speed drive rollers on the support plate, combined with electric pushing rods and splints to stretch and tighten the TPU hot melting film to ensure that the membrane is cutting in cutting Keep a tight state before.
Effectively avoid the problem of excessive stretching and uneven tension of the TPU hot -melt glue film, ensure the improvement of cutting accuracy and product quality, while improving production efficiency.
Smart Images
Figure CN119368938A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of hot melt adhesive sheet cutting, in particular to an automatic positioning and cutting device for underwear TPU hot melt adhesive sheet. Background Art
[0002] The underwear TPU hot melt adhesive sheet has the characteristics of washability, environmental protection and breathability, high elasticity and low temperature resistance. In terms of application, it is suitable for seamless underwear bonding and connecting underwear parts to meet special design requirements. During operation, it is heated and melted into a viscous liquid and then cooled into a solid after bonding. It can be used with release paper or a high and low temperature double-layer structure. The width and thickness can be customized, which can provide reliable bonding, beautiful and comfortable, and flexible and diverse solutions for underwear production.
[0003] The Chinese invention patent with application number 2021109889942 specifically discloses a film cutting device and a film cutting method, which blows off the sheet film adhering to the lower cutter by blowing air, thereby preventing the sheet film from being adsorbed on the lower cutter and causing poor cutting effect. The air jet of the air jet nozzle is driven by the movement of the upper cutter, which has high synchronization and is easy to use; However, the above-mentioned equipment uses the cooperation of multiple feed rollers, the first guide roller and the second guide roller to realize the conveying of the film. Due to the speed fluctuation of the transmission roller during operation, the originally uniform tension distribution of the film is prone to become uneven. This uneven stress state will have a significant impact on the state of the film. In the part where the tension is too large, the film material is over-stretched, while the part where the force is insufficient is relatively relaxed. This uneven stress forms wrinkles, which not only affects the appearance flatness of the film, but also affects the cutting operation of the film, so that the cutting tool cannot accurately cut along the predetermined cutting line, resulting in problems such as inaccurate cutting size and uneven edges, which greatly reduces the quality and production efficiency of the product. In order to achieve efficient cutting of underwear TPU hot melt adhesive sheets, conveying rollers are used for conveying. The above problems will also occur during the conveying and cutting process. In view of the above technical defects, a solution is now proposed. Summary of the invention
[0004] The object of the present invention is to provide an automatic positioning and cutting device for underwear TPU hot melt adhesive sheets, which is used to solve the problems mentioned in the above background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic positioning and cutting device for underwear TPU hot melt adhesive sheets, comprising a base, two support plates are fixedly connected to the top of the base, a vertical plate is also fixedly connected to the top of the base, a pad is fixedly connected to the top of the base, a cover is fixedly connected to the top of the base, a sliding seat is slidably connected in the cover, the bottom of the sliding seat is also slidably connected to the top of the pad, and a multi-faceted receiving component is arranged on the top of the base; The multi-faceted bearing assembly includes multiple groups of supporting rotating rods 1 and 2, multiple groups of supports are fixedly connected to the outer sides of the cover shell and the sliding seat, and lifting seats are arranged at the top ends of the supporting rotating rods 1 and 2.
[0006] Furthermore, the bottom of the lifting seat is symmetrically fixedly connected with a guide rail, the top sides of the supporting rotating rod 1 are fixedly connected with guide blocks, the supporting rotating rod 1 is slidably connected to the guide rail through the guide blocks, the top of the supporting rotating rod 2 is rotatably connected to the bottom of the lifting seat, the top of the lifting seat is provided with a mounting groove, and one end of the lifting seat is provided with a sliding groove.
[0007] Furthermore, the side wall of the installation groove is rotatably connected to a receiving plate, the bottom of the inner wall of the installation groove is rotatably connected to multiple groups of electric push rods 1, and the output end of the electric push rod 1 is rotatably connected to the bottom of the receiving plate.
[0008] Furthermore, a gasket is provided on the top of the receiving plate, through holes are provided on the top and side walls of the receiving plate, a guide slide is fixedly connected to the side wall of the vertical plate, and the lifting seat is slidably connected to the guide slide through a slide groove provided on the side wall; The side walls of the two support plates are rotatably connected to multiple groups of rotating frames, and multiple groups of transmission rollers and abutment plates are arranged between the corresponding rotating frames. The two ends of the transmission rollers are respectively movably connected to the corresponding side walls of the rotating frames through bearings, and the two ends of the abutment plates are fixedly connected to the corresponding side walls of the rotating frames. An electric push cylinder is fixedly installed on the side walls of one of the support plates, and the output end of the electric push cylinder is fixedly connected to the side wall of the sliding seat.
[0009] Furthermore, the outer wall of the support plate is rotatably connected to a rotating arm, and the rotating arm is fixedly connected to the rotating frame through a rotating shaft. The outer wall of the support plate is rotatably connected to an electric push rod 2, and the output end of the electric push rod 2 is rotatably connected to the rotating arm.
[0010] Furthermore, the side wall of the support plate is provided with a fine-leveling component, and the fine-leveling component includes multiple groups of sliding frames and multiple groups of threaded rods. The sliding frame is fixedly installed on the side wall of the support plate, and the threaded rod is movably connected to the inner wall of the sliding frame through a bearing. A slider is slidably connected inside the sliding frame, and the slider is threadedly connected to the threaded rod through a threaded groove opened through the outside, and a motor for driving the threaded rod to rotate is fixedly installed on the outside of the sliding frame.
[0011] Furthermore, the fine-leveling assembly also includes a frame, the side wall of the slider is fixedly mounted with an electric push rod three, the frame is fixedly mounted on the output end of the electric push rod three, and the outer side of the frame is rotatably connected to two clamping plates.
[0012] Furthermore, a bidirectional push rod is fixedly installed on the inner side of the frame, a guide groove is opened on the inner side wall of the clamping plate, and the bidirectional push rod is slidably connected to the guide groove through a protrusion connected at the end.
[0013] Furthermore, the bottom end of the first support rod is rotatably connected to a support connected to the outside of the cover shell, the bottom end of the second support rod is rotatably connected to a support connected to the outside of the sliding seat, and the middle part of the first support rod is rotatably connected to the middle part of the second support rod; A plurality of laser cutting machines and industrial cameras matched with the receiving plate are fixedly mounted on the top of the base through a supporting frame, and a fan is installed inside the mounting groove.
[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is in use, multiple groups of rotating frames are arranged at different positions of the support plate, and transmission rollers capable of automatically adjusting the rotation speed are arranged on the inner side of the rotating frame, so as to realize flexible adjustment of the transmission speed of the TPU hot melt adhesive film. When the PU hot melt adhesive film is detected to have wrinkles, the electric push rod three quickly stretches the TPU hot melt adhesive film through the clamping plate, and strictly controls the retraction distance of the electric push rod three, so as to effectively prevent the TPU hot melt adhesive film from being overstretched; At the same time, the abutment plates at the top and bottom of the TPU hot melt adhesive film are synchronously pressed against the upper and lower surfaces of the film under the action of the corresponding rotating frame and the electric push rod 2. This operation enables the TPU hot melt adhesive film to always remain in a taut position before being cut, successfully solving the impact of wrinkles on cutting, ensuring that the TPU hot melt adhesive film can be accurately cut to size, and greatly improving product quality and production efficiency.
[0015] 2. When the present invention is in use, by providing multiple groups of laser cutting machines, it is possible to achieve synchronous and efficient cutting operations compared to the traditional situation of only being equipped with a single laser cutting machine. Multiple groups of laser cutting machines work together to greatly improve production efficiency and shorten processing time. At the same time, TPU hot melt adhesive films of different sizes and shapes can be cut in batches. This multifunctional cutting capability provides greater flexibility and diversity for production, and can quickly and accurately cut underwear TPU hot melt adhesive films of various sizes and shapes. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings; Figure 1 It is a schematic diagram of the receiving plate structure in the present invention; Figure 2 It is a schematic diagram of the installation slot structure in the present invention; Figure 3 It is a schematic diagram of the connection between the sliding seat and the cover shell in the present invention; Figure 4 It is a side view of the overall internal structure of the present invention; Figure 5 It is a schematic diagram of the structure of the transmission roller and the abutment plate in the present invention; Figure 6 It is a schematic diagram of the fine-leveling component in the present invention; Figure 7 It is a cross-sectional view of the splint structure in the present invention; Figure 8 It is a schematic diagram of the connection relationship between the supporting rotating rod 1 and the supporting rotating rod 2 in the present invention; Fig. 9 It is a front view of the overall structure of the present invention.
[0017] 1. Base; 2. Support plate; 3. Vertical plate; 4. Pad; 5. Cover; 6. Sliding seat; 7. Multi-faceted receiving assembly; 701. Supporting rotating rod one; 702. Supporting rotating rod two; 703. Lifting seat; 704. Guide rail; 705. Mounting groove; 706. Gasket; 707. Receiver plate; 708. Electric push rod one; 8. Support; 9. Guide slide; 10. Transmission roller; 11. Electric push cylinder; 12. Fine-leveling assembly; 121. Slide frame; 122. Threaded rod; 123. Sliding block; 124. Frame; 125. Electric push rod three; 126. Clamp; 127. Bidirectional push rod; 13. Rotating frame; 14. Abutment plate; 15. Rotating arm; 16. Electric push rod two; 17. Motor; 18. Laser cutting machine; 19. Industrial camera; 20. Fan. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0019] Embodiment 1: Figure 1-Figure 9 As shown, an automatic positioning and cutting device for underwear TPU hot melt adhesive sheets comprises a base 1, two support plates 2 are fixedly connected to the top of the base 1, a vertical plate 3 is also fixedly connected to the top of the base 1, a pad 4 is fixedly connected to the top of the base 1, a cover 5 is fixedly connected to the top of the base 1, a sliding seat 6 is slidably connected in the cover 5, and the bottom of the sliding seat 6 is also slidably connected to the top of the pad 4; A multi-faceted receiving assembly 7 is provided on the top of the base 1. A plurality of laser cutting machines 18 and industrial cameras 19 that cooperate with the receiving plate 707 are fixedly installed on the top of the base 1 through a support frame. It should be noted here that the laser cutting machine 18 and the industrial camera 19 are both existing equipment. The laser cutting machine 18 is used to cut the TPU hot melt adhesive, and there are multiple laser cutting machines 18, which can cut underwear TPU hot melt adhesive sheets of different sizes and shapes according to actual production needs. The industrial camera 19 is used to monitor whether there are wrinkles on the surface of the TPU hot melt adhesive, and a fan 20 is installed inside the mounting groove 705.
[0020] The side wall of the support plate 2 is provided with a fine-leveling assembly 12, which includes a plurality of slide frames 121 and a plurality of threaded rods 122. The slide frames 121 are fixedly mounted on the side wall of the support plate 2, and the threaded rods 122 are movably connected to the inner wall of the slide frames 121 through bearings. A slider 123 is slidably connected in the slide frame 121, and the slider 123 is threadedly connected to the threaded rod 122 through a threaded groove provided through the outer side. A motor 17 for driving the threaded rod 122 to rotate is fixedly mounted on the outer side of the slide frame 121; The fine-leveling assembly 12 also includes a frame 124, an electric push rod 3 125 is fixedly installed on the side wall of the slider 123, the frame 124 is fixedly installed on the output end of the electric push rod 3 125, the outer side of the frame 124 is rotatably connected to two clamping plates 126, and a two-way push rod 127 is fixedly installed on the inner side of the frame 124. A guide groove is opened on the inner side wall of the clamping plate 126, and the two-way push rod 127 is slidably connected to the guide groove through a protrusion connected at the end.
[0021] The side walls of the two support plates 2 are rotatably connected to multiple groups of rotating frames 13, and multiple groups of transmission rollers 10 and abutment plates 14 are arranged between the corresponding rotating frames 13. It should be noted that a motor for driving the transmission rollers 10 to rotate is fixedly installed on the outer side of the rotating frame 13. By arranging multiple groups of rotating frames 13 at different positions of the support plate 2, and arranging the transmission rollers 10 that can adjust the rotation speed by themselves on the inner side of the rotating frame 13, the transmission speed of the TPU hot melt adhesive can be flexibly adjusted; The two ends of the transmission roller 10 are movably connected to the corresponding side walls of the rotating frame 13 through bearings, and the two ends of the abutment plate 14 are fixedly connected to the corresponding side walls of the rotating frame 13. An electric push cylinder 11 is fixedly installed on the side wall of one of the support plates 2, and the output end of the electric push cylinder 11 is fixedly connected to the side wall of the sliding seat 6. The outer side wall of the support plate 2 is rotatably connected to a rotating arm 15, and the rotating arm 15 is fixedly connected to the rotating frame 13 through a rotating shaft. The outer side wall of the support plate 2 is rotatably connected to an electric push rod 16, and the output end of the electric push rod 16 is rotatably connected to the rotating arm 15.
[0022] When setting specific Figure 4 As shown, during the process of the TPU hot melt adhesive film being stably conveyed outside the multiple groups of transmission rollers 10, when it needs to be laser cut into TPU hot melt adhesive sheets, the electric push rod 16 is started, the electric push rod 16 drives the rotating arm 15 to rotate, and the rotating arm 15 drives the rotating frame 13 to rotate synchronously through the rotating shaft. During the rotation process, the rotating frame 13 drives the transmission roller 10 to rotate synchronously until the transmission roller 10 located on the top of the TPU hot melt adhesive film is separated from the contact with the TPU hot melt adhesive film; When the industrial camera 19 acquires and analyzes the image of the surface of the TPU hot melt adhesive film and detects that the current TPU hot melt adhesive film has wrinkles, the motor 17 is started at this time, and the motor 17 drives the threaded rod 122 to rotate. During the rotation process, the threaded rod 122 drives the slider 123 to slide along the slide frame 121 until the clamping plate 126 moves to the position where the TPU hot melt adhesive film has wrinkles. At this time, the electric push rod 125 drives the clamping plate 126 to approach the TPU hot melt adhesive film through the frame 124; The two-way push rod 127 cooperates with the guide groove provided on the inner wall of the clamping plate 126 through the protrusion at the end, thereby driving the clamping plate 126 to deflect, and the clamping plates 126 located at the top and bottom of the TPU hot melt adhesive film further clamp it during the deflection process, and then the electric push rod 3 125 stretches the TPU hot melt adhesive film through the clamping plate 126 until the wrinkles on the surface of the TPU hot melt adhesive film are eliminated; At the same time, the retraction distance of the third electric push rod 125 is controlled to avoid the problem of excessive stretching of the TPU hot melt adhesive film. After the wrinkles of the TPU hot melt adhesive film are eliminated, the abutment plates 14 located at the top and bottom of the TPU hot melt adhesive film are synchronously pressed against the upper surface and the lower surface of the TPU hot melt adhesive film under the action of the corresponding rotating frame 13 and the second electric push rod 16, so that the TPU hot melt adhesive film is always positioned in a taut state before being cut, and the driving roller 10 is now out of contact with the TPU hot melt adhesive film; Embodiment 2: The multi-faceted bearing assembly 7 includes multiple groups of support rotating rods 1 701 and multiple groups of support rotating rods 2 702. The outer sides of the cover shell 5 and the sliding seat 6 are fixedly connected with multiple groups of supports 8. The tops of the support rotating rods 1 701 and the support rotating rods 2 702 are provided with lifting seats 703. The bottom end of the support rotating rod 1 701 is rotatably connected to the support 8 connected to the outer side of the cover shell 5. The bottom end of the support rotating rod 2 702 is rotatably connected to the support 8 connected to the outer side of the sliding seat 6. The middle part of the support rotating rod 1 701 is rotatably connected to the middle part of the support rotating rod 2 702. The bottom of the lifting seat 703 is symmetrically fixedly connected with a guide rail 704, and the top sides of the supporting rotating rod 1 701 are fixedly connected with guide blocks. The supporting rotating rod 1 701 is slidably connected to the guide rail 704 through the guide blocks. The top of the supporting rotating rod 2 702 is rotatably connected to the bottom of the lifting seat 703. The top of the lifting seat 703 is provided with a mounting groove 705, and one end of the lifting seat 703 is provided with a sliding groove.
[0023] The side wall of the mounting groove 705 is rotatably connected with a receiving plate 707, and the bottom of the inner wall of the mounting groove 705 is rotatably connected with a plurality of electric push rods 708, and the output end of the electric push rod 708 is rotatably connected with the bottom of the receiving plate 707, and a gasket 706 is arranged on the top of the receiving plate 707, and a through hole is opened through the top and the side wall of the receiving plate 707, and the fan 20 guides the wind to the bottom of the gasket 706 through the through hole, so as to accelerate the cooling of the gasket 706 and prevent the residual temperature on the surface of the gasket 706 from affecting the properties of the hot melt adhesive film. The gasket 706 is made of ceramic material, which has good high temperature resistance and high hardness, can withstand the high temperature and impact force during laser cutting, absorbs less laser, and can prevent laser penetration to a certain extent, and the side wall of the vertical plate 3 is fixedly connected with a guide slide bar 9, and the lifting seat 703 is slidably connected with the guide slide bar 9 through the slide groove opened in the side wall.
[0024] During the specific setting, after the wrinkles on the surface of the TPU hot melt adhesive film are eliminated and fixed, the electric push cylinder 11 is started, and the electric push cylinder 11 pushes the sliding seat 6 to slide on the top of the pad 4, and the sliding seat 6 slides into the cover shell 5. In the process of the sliding seat 6 sliding into the cover shell 5, the support rotating rod 1 701 and the support rotating rod 2 702 drive the lifting seat 703 to rise synchronously during the rotation process, and the lifting seat 703 slides stably along the guide slide bar 9 through the slide groove opened at the end until the gasket 706 on the top of the receiving plate 707 contacts the bottom of the TPU hot melt adhesive film. Before the gasket 706 on the top of the receiving plate 707 contacts the hot melt adhesive film, the receiving plate 707 is kept parallel to the hot melt adhesive film under the adjustment of the electric push rod 1 708, which is conducive to close fitting with the bottom of the hot melt adhesive film. Then, the laser cutting machine 18 stably cuts the transferred TPU hot melt adhesive film according to the pre-set cutting shape. After the cutting is completed, the lifting seat 703 descends and drives the receiving plate 707 and the TPU hot melt adhesive sheet cut from the top thereof to descend synchronously. In order to realize the automatic unloading of the TPU hot melt adhesive sheet, a conveyor belt and other mechanisms can be set on one side of the lifting seat 703, and an electric push rod 708 is used to cause the receiving plate 707 to deflect, so as to cause the TPU hot melt adhesive sheet to slide out from the top of the receiving plate 707 to the top of the corresponding conveyor belt; Then, the rotating frame 13 is deflected, causing the driving roller 10 to re-contact the bottom and top of the TPU hot melt adhesive film. Under the action of the external winding roller, multiple groups of driving rollers 10 realize the transmission of the TPU hot melt adhesive film, so that the cut TPU hot melt adhesive film is wound by the external winding roller. At the same time, the uncut TPU hot melt adhesive film is transmitted to the bottom of the laser cutting machine 18. During the time period of the TPU hot melt adhesive film transmission, the fan 20 quickly cools down the gasket 706 through the through hole at the bottom of the receiving plate 707 to prevent the residual temperature on the surface of the gasket 706 from affecting the TPU hot melt adhesive film.
[0025] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.
[0026] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0027] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. An automatic positioning and cutting device for underwear TPU hot melt adhesive sheets, comprising a base (1), two support plates (2) are fixedly connected to the top of the base (1), a vertical plate (3) is also fixedly connected to the top of the base (1), and a pad (4) is fixedly connected to the top of the base (1), characterized in that: The top of the base (1) is fixedly connected to a cover shell (5), a sliding seat (6) is slidably connected inside the cover shell (5), the bottom of the sliding seat (6) is also slidably connected to the top of the pad (4), and a multi-faceted receiving component (7) is provided on the top of the base (1); The multi-faceted bearing assembly (7) comprises a plurality of groups of supporting rotating rods one (701) and a plurality of groups of supporting rotating rods two (702); the outer sides of the cover shell (5) and the sliding seat (6) are fixedly connected to a plurality of groups of supports (8); and the top ends of the supporting rotating rods one (701) and the supporting rotating rods two (702) are provided with lifting seats (703).
2. The automatic positioning and cutting device for underwear TPU hot melt adhesive sheet according to claim 1, characterized in that: The bottom of the lifting seat (703) is symmetrically fixedly connected with a guide rail (704), the top of the supporting rotating rod (701) is fixedly connected with guide blocks on both sides, the supporting rotating rod (701) is slidably connected to the guide rail (704) through the guide blocks, the top of the supporting rotating rod (702) is rotatably connected to the bottom of the lifting seat (703), the top of the lifting seat (703) is provided with a mounting groove (705), and one end of the lifting seat (703) is provided with a sliding groove.
3. The automatic positioning and cutting device for underwear TPU hot melt adhesive sheet according to claim 2, characterized in that: The side wall of the installation groove (705) is rotatably connected to a receiving plate (707), the bottom of the inner wall of the installation groove (705) is rotatably connected to multiple groups of electric push rods (708), and the output end of the electric push rod (708) is rotatably connected to the bottom of the receiving plate (707).
4. The automatic positioning and cutting device for underwear TPU hot melt adhesive sheet according to claim 3, characterized in that: A gasket (706) is provided on the top of the receiving plate (707), through holes are provided on the top and side walls of the receiving plate (707), a guide slide bar (9) is fixedly connected to the side wall of the vertical plate (3), and the lifting seat (703) is slidably connected to the guide slide bar (9) via a slide groove provided on the side wall; The side walls of the two support plates (2) are rotatably connected to a plurality of rotating frames (13), and a plurality of transmission rollers (10) and abutment plates (14) are arranged between the corresponding rotating frames (13). The two ends of the transmission rollers (10) are movably connected to the side walls of the corresponding rotating frames (13) via bearings, and the two ends of the abutment plates (14) are fixedly connected to the side walls of the corresponding rotating frames (13). An electric push cylinder (11) is fixedly installed on the side walls of one of the support plates (2), and the output end of the electric push cylinder (11) is fixedly connected to the side wall of the sliding seat (6).
5. The automatic positioning and cutting device for underwear TPU hot melt adhesive sheet according to claim 1, characterized in that: The outer wall of the support plate (2) is rotatably connected to a rotating arm (15), and the rotating arm (15) is fixedly connected to the rotating frame (13) via a rotating shaft. The outer wall of the support plate (2) is rotatably connected to a second electric push rod (16), and the output end of the second electric push rod (16) is rotatably connected to the rotating arm (15).
6. The automatic positioning and cutting device for underwear TPU hot melt adhesive sheet according to claim 1, characterized in that: The side wall of the support plate (2) is provided with a fine-leveling assembly (12), the fine-leveling assembly (12) comprising a plurality of groups of slide frames (121) and a plurality of groups of threaded rods (122), the slide frames (121) being fixedly mounted on the side wall of the support plate (2), the threaded rods (122) being movably connected to the inner wall of the slide frames (121) via bearings, a slider (123) being slidably connected inside the slide frame (121), the slider (123) being threadedly connected to the threaded rod (122) via a threaded groove extending through the outer side, and a motor (17) for driving the threaded rod (122) to rotate is fixedly mounted on the outer side of the slide frame (121).
7. The automatic positioning and cutting device for underwear TPU hot melt adhesive sheet according to claim 6, characterized in that: The fine-leveling assembly (12) further comprises a frame (124), a third electric push rod (125) being fixedly mounted on the side wall of the slider (123), the frame (124) being fixedly mounted on the output end of the third electric push rod (125), and two clamping plates (126) being rotatably connected to the outer side of the frame (124).
8. The automatic positioning and cutting device for underwear TPU hot melt adhesive sheet according to claim 7, characterized in that: A bidirectional push rod (127) is fixedly mounted on the inner side of the frame (124), a guide groove is provided on the inner side wall of the clamping plate (126), and the bidirectional push rod (127) is slidably connected to the guide groove via a protrusion connected at the end.
9. The automatic positioning and cutting device for underwear TPU hot melt adhesive sheet according to claim 2, characterized in that: A fan (20) is installed inside the mounting groove (705); the bottom end of the first support rotating rod (701) is rotatably connected to a support (8) connected to the outside of the housing (5); the bottom end of the second support rotating rod (702) is rotatably connected to a support (8) connected to the outside of the sliding seat (6); and the middle portion of the first support rotating rod (701) is rotatably connected to the middle portion of the second support rotating rod (702); A plurality of laser cutting machines (18) and industrial cameras (19) matched with the receiving plate (707) are fixedly mounted on the top of the base (1) via a support frame.