Inner surface attaching device for U-shaped structural part

Through the coordinated work of the soft-pack material positioning mechanism, the U-shaped structural member positioning mechanism and the heating mechanism, the problem of difficulty in positioning the material in the inner surface of the U-shaped structural member is solved, high-precision and high-efficiency material bonding is achieved, and the flatness and bonding strength of the inner surface of the U-shaped structural member are improved.

CN120503429APending Publication Date: 2025-08-19SHENZHEN RENHE INTELLIGENT IND CO LTD
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Patent Information

Application Number
CN202510755170.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2025-08-19

AI Technical Summary

Technical Problem

Traditional positioning devices are difficult to stabilize the soft-pack material on the inner surface of the U-shaped structural member, resulting in insufficient material offset, wrinkle and bonding strength. The existing automation equipment cannot adapt to the complex curvature changes in the concave surface of the U-shaped structural member.

Method used

The soft-pack material positioning mechanism, U-shaped structural part positioning mechanism, heating mechanism and industrial robot work together to achieve high-precision positioning and uniform fit of soft-pack material. The vacuum adsorption and hot-melt adhesive film activation technology are used to combine clamp cylinder and profiling block inner cavity support to ensure efficient fit of the material on the inner surface of the U-shaped structural part.

Benefits of technology

It realizes high-precision and high-speed material bonding on the inner surface of U-shaped structural parts, improves flatness and bonding reliability, and meets the production needs of complex inner surface coating processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a fitting device for the inner surface of a U-shaped structural part. The fitting device comprises a machine table, a soft package material positioning mechanism, a U-shaped structural part positioning mechanism, a soft package material transferring mechanism and a heating mechanism. The soft package material positioning mechanism is used for positioning and bending a soft package material by matching a supporting block and a clamping block with a profiling block; the soft package material transferring mechanism adopts a multi-degree-of-freedom industrial robot to drive the profiling block to transfer the soft package material to an inner cavity of a U-shaped structural part; the heating mechanism uniformly outputs hot air through an air guide plate and an air outlet plate to activate the hot melt adhesive film; the sliding table mechanism moves the positioning mechanism in a partitioned mode to optimize the feeding path, a clamping air cylinder and a profiling table cooperate to fix the U-shaped structural part, and an inner cavity of a profiling block supports to prevent deformation. According to the device, high-precision self-adaptive lamination of the soft package material on the inner surface of the U-shaped structural part is realized, the problems of difficulty in concave surface positioning and low efficiency are solved, and the lamination flatness and the production safety are remarkably improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of material bonding, and in particular to a bonding device for the inner surface of a U-shaped structural member. Background Art

[0002] With the continuous upgrading of product texture and user experience in the fields of automotive interiors, 3C electronic products, etc., there is an increasing demand for soft packaging materials (such as leather, microfiber, silicone or composite fabrics) to cover the inner surface of structural parts. This process not only enhances the visual sense of luxury and tactile comfort by bonding the soft packaging materials to the inner surface of the structural parts, but also effectively reduces the friction of the internal structure, absorbs vibration and noise. However, for U-shaped structural parts, the operating space is narrow due to the groove structure of the inner surface. Traditional positioning (such as external support clamps or mechanical clamps) is difficult to penetrate into the concave area and stably fix the soft packaging materials. During the pre-lamination stage, the material is prone to offset and wrinkles due to gravity sagging or uneven bonding pressure, especially in the corner area of the U-shaped bottom, which is prone to material accumulation or excessive stretching, affecting the flatness and bonding strength after coating; existing automated bonding equipment (such as flat heat presses, vacuum suction cup systems) mainly targets the outer surface and cannot adapt to the complex curvature changes of the inner concave surface of the U-shaped structural parts. For example, traditional rollers or pressure heads are difficult to insert into the U-shaped cavity due to size limitations, and rigid tools are prone to interfere with structural parts at concave corners, resulting in uneven distribution of fitting pressure and even damage to the material surface. Summary of the Invention

[0003] In view of the defects of the existing technology, the present invention provides a device specifically used for bonding the inner surface of U-shaped structural parts, which can break through the concave space constraints and achieve high-precision positioning of soft packaging materials, thereby meeting the growing quality and efficiency requirements of industries such as automobiles and 3C for complex inner surface coating processes.

[0004] The present invention provides a device for laminating the inner surface of a U-shaped structural component, comprising a machine platform. The interior of the machine platform is divided into two areas, one of which is provided with a soft packaging material positioning mechanism, and the other is provided with a U-shaped structural component positioning mechanism. The machine platform also includes a soft packaging material transfer mechanism and a heating mechanism. The soft packaging material transfer mechanism is disposed between the soft packaging material positioning mechanism and the U-shaped structural component positioning mechanism to transfer the positioned soft packaging material to the U-shaped structural component positioning mechanism. The heating mechanism is disposed behind the U-shaped structural component positioning mechanism to heat the positioned soft packaging material and the U-shaped structural component.

[0005] Preferably, the soft pack material positioning mechanism includes a support platform, on which is mounted:

[0006] A support block is provided on the upper portion of the support platform, and an upper surface of the support block is provided with a contoured structure adapted to the bottom of the U-shaped structural member;

[0007] A flip mechanism, the flip mechanism comprising two clamping blocks located on either side of the support block, the upper surfaces of the clamping blocks being provided with a contoured structure adapted to the outer side of the U-shaped structural member, the upper surfaces of the clamping blocks and the upper surfaces of the support blocks being combined to form a support surface, the edges of the upper surfaces of the clamping blocks and the upper surfaces of the support blocks being close to each other to form a rotation axis;

[0008] A power mechanism, wherein the output end of the power mechanism is connected to the flip mechanism to simultaneously drive the two clamping blocks to rotate in the same direction or in opposite directions around the rotation axis.

[0009] The soft-pack material transfer mechanism includes an industrial robot and a profiling block installed on the output end of the industrial robot. The profiling block is a profiling block inside a U-shaped structural member. The main body of the industrial robot has at least forward, backward, left, and right position movement directions, so that the output end of the industrial robot can be output to any point within the plane activity range. The output end of the industrial robot has up, down, and rotation functions, so that the profiling block can be used to take out or put down the soft-pack material by "up and down", and the angle of the profiling block can be adjusted by "rotation".

[0010] Preferably, the industrial robot is Epson T3-B401S.

[0011] Preferably, the power mechanism includes a U-shaped mounting frame, and two mounting plates arranged opposite to each other are also installed on the upper part of the support platform. The U-shaped mounting frame is connected between the two mounting plates by rotating through a rotating shaft, and the central axis of the rotating shaft and the rotating axis are located on the same straight line, and the inner side of the U-shaped mounting frame is fixedly connected to the lower surface of the clamping block.

[0012] Preferably, the power mechanism also includes a driving device, which includes a slide rail and a slider. The slide rail is installed on both sides of one of the mounting plates. The slider is provided with a slide groove corresponding to the slide rail, and the slide groove allows the slider to move up and down on the slide rail. A rack is installed on the slider, and a gear engaged with the rack is fixedly sleeved on the rotating shaft; a cylinder is installed on the mounting plate, and the movable end of the cylinder is fixedly connected to the slider through a connecting plate.

[0013] Preferably, the soft-pack material positioning mechanism also includes a vacuum generator, a first ventilation pipe is opened inside the support block, and a second ventilation pipe is opened inside the clamping block, one end of the first ventilation pipe is connected to the upper surface of the support block, and one end of the second ventilation pipe is connected to the upper surface of the clamping block; the other ends of the first ventilation pipe and the second ventilation pipe are both connected to the output end of the vacuum generator; a third ventilation pipe is opened inside the profiling block, one end of the third ventilation pipe is connected to the surface of the profiling block, and the other end is connected to the output end of the vacuum generator.

[0014] Preferably, two slide mechanisms are provided inside the machine, the slide mechanisms are distributed in two areas, and the output end of the slide mechanism can move forward and backward, the soft package material positioning mechanism is fixed to the movable end of one slide mechanism, and the U-shaped structural member positioning mechanism is fixed to the movable end of the other slide mechanism.

[0015] Preferably, the U-shaped structural member fixing mechanism includes a fixing plate, which is mounted on the movable end of the sliding mechanism, and a profiling platform is mounted above the fixing plate, and the upper surface of the profiling platform is in the shape of the outer bottom surface of the U-shaped mechanism member, so that when the U-shaped structural member is placed, the bottom of the U-shaped structural member can fit into the upper surface of the profiling platform, making it relatively stable; clamping cylinders are provided on both sides of the profiling platform and the movable end of the clamping cylinder faces the profiling platform, and the movable end of the clamping cylinder is fixedly connected to a clamping block, and the side of the clamping block facing the profiling platform has a partial profiling structure of the outer side surface of the U-shaped structural member.

[0016] Preferably, the heating mechanism includes a hot air gun and an air guide structure, a hot air duct is provided inside the air guide structure, the air inlet of the hot air duct is connected to the hot air gun, and the air outlet of the hot air duct faces the U-shaped structural member positioning mechanism.

[0017] Preferably, the air guide mechanism includes an air guide plate and an air outlet plate, the air outlet plate is arranged on the side facing the U-shaped structural member positioning mechanism, the air guide plate is provided with an air duct groove, the air outlet plate is provided with air holes evenly spaced, the air outlet plate is fixedly connected to the air guide plate, and the air duct groove is connected to the air holes to form the hot air duct.

[0018] The present invention uses a power mechanism to drive the clamping block to flip around the rotation axis, and the profiling block controlled by the industrial robot adaptively bends the soft package material so that it is evenly attached to the inner surface of the U-shaped structural part; the sliding table mechanism realizes the partitioned movement and avoidance of the soft package material positioning mechanism and the U-shaped structural part positioning mechanism, ensuring the safety of material loading and optimizing the processing path; the heating mechanism evenly distributes hot air through the air guide plate and the air outlet plate, activates the hot melt adhesive film and avoids local temperature anomalies; the clamping cylinder and the profiling table cooperate to clamp the U-shaped structural part, supplemented by the inner cavity support of the profiling block to prevent deformation, and finally realizes high-precision and high-efficiency automatic bonding, effectively improving the flatness of the inner surface coating, the bonding reliability and the yield rate, and adapting to the production needs of U-shaped structural parts bonding.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0021] Figure 1 It is a schematic diagram of a U-shaped structural member;

[0022] Figure 2 This is a three-dimensional diagram of the inner surface bonding device of a U-shaped structural member provided by the present invention;

[0023] Figure 3 This is a diagram of the first state of the soft packaging material positioning mechanism provided by the present invention;

[0024] Figure 4 This is a three-dimensional diagram of the soft package material transfer mechanism provided by the present invention;

[0025] Figure 5 This is a diagram of the second state of the soft packaging material positioning mechanism provided by the present invention;

[0026] Figure 6 This is a diagram of the internal structure of the power mechanism provided by the present invention;

[0027] Figure 7 This is a structural diagram of the U-shaped structural member positioning mechanism provided by the present invention;

[0028] Figure 8 This is a connection diagram of the heating mechanism provided by the present invention;

[0029] Figure 9 It is an exploded view of the air guide mechanism provided by the present invention. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, or mutual communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0035] To better illustrate the purpose and working principle of the present invention, Figure 1 , shows the shape of a U-shaped structural member. The purpose of the present invention is to adhere a layer of flexible material to the inner surface of the U-shaped structural member. To achieve this purpose, a U-shaped structural member inner surface bonding device is provided. The specific solution is as follows:

[0036] like Figure 2 A U-shaped structural member inner surface bonding device is shown, including a machine platform, the interior of the machine platform is divided into two areas on the left and right sides, one area is provided with a soft packaging material positioning mechanism 1, and the other area is provided with a U-shaped structural member positioning mechanism 2. The interior of the machine platform is also provided with a soft packaging material transfer mechanism 3 and a heating mechanism 4; the soft packaging material transfer mechanism 3 is arranged between the soft packaging material positioning mechanism 1 and the U-shaped structural member positioning mechanism 2, so as to transfer the positioned soft packaging material to the U-shaped structural member positioning mechanism 2, and the heating mechanism 4 is arranged behind the U-shaped structural member positioning mechanism 2, so as to heat the positioned soft packaging material and the U-shaped structural member.

[0037] It should be noted that the soft-pack material needs to be pre-glued with a hot-melt adhesive film. The use of hot-melt adhesive film for bonding is also a common process in this field. The principle is to heat and activate the hot-melt adhesive to make it sticky, thereby bonding the materials to be bonded. In this embodiment, the soft-pack material is first positioned by the soft-pack material positioning mechanism 1, and the U-shaped structural member is positioned by the U-shaped structural member positioning mechanism 2. Then, the positioned soft-pack material is transferred to the inner surface of the U-shaped structural member by the soft-pack material transfer mechanism 3, and then the hot-melt adhesive film is activated by the heating mechanism to complete the bonding.

[0038] In the present invention, based on Figure 2 The positional relationship shown defines left, right, front and back; it can be understood that the soft package material positioning mechanism 1 and the U-shaped structural member positioning mechanism 2 need to be loaded, and are located in the front of the device, which is convenient for loading, while the heating mechanism 4 is located behind the U-shaped structural member positioning mechanism, which can avoid burns from the heating mechanism 4 when manually loading the U-shaped structural member.

[0039] like Figure 3 As shown, in a specific embodiment, the soft packaging material positioning mechanism 1 includes a support platform 11, on which are mounted:

[0040] A support block 12 is provided on the upper portion of the support platform 11, and an upper surface of the support block 12 is provided with a contoured structure adapted to the bottom of the U-shaped structural member;

[0041] The flip mechanism includes two clamping blocks 13 located on either side of the support block 12. The upper surface of the clamping block 13 is provided with a contoured structure adapted to the outer surface of the U-shaped structure. The upper surface of the clamping block 13 and the upper surface of the support block 12 are combined to form a support surface. The edge of the upper surface of the clamping block 13 and the edge of the upper surface of the support block 12 are close to form a rotation axis 14.

[0042] The power mechanism 15 has an output end connected to the flip mechanism to simultaneously drive the two clamping blocks 13 to rotate in the same direction or in opposite directions around the rotation axis 15 .

[0043] like Figure 4 The soft-pack material transfer mechanism 3 shown includes an industrial robot 31 and a contour block 32 on which the output end of the industrial robot is installed. The contour block 32 is a contour inside a U-shaped structural member. The body of the industrial robot 31 has at least forward, backward, left, and right position movement directions, so that the output end of the industrial robot 31 can be output to any point within the plane activity range. The output end of the industrial robot 31 has up, down, and rotation functions, so that the contour block 32 can be used to take out or put down the soft-pack material by "up and down", and the angle of the contour block 32 can be adjusted by "rotation".

[0044] In this embodiment, Figure 3 As shown, after the power mechanism 5 drives the two clamping blocks 13 to rotate in opposite directions, the support surface is in an expanded state. During processing, the soft-pack material is spread flat on the support surface. Then the industrial robot 31 moves the profiling block 32 onto the soft-pack material and applies a certain pressure to make the soft-pack material relatively fixed. The power mechanism 15 is started to drive the two clamping blocks 13 to rotate in the same direction. The clamping blocks 13 push the soft-pack material to bend until it is completely attached to both sides of the profiling block 32, completing the positioning. Figure 5 state.

[0045] In a specific embodiment, the industrial robot is Epson T3-B401S.

[0046] like Figure 6As shown, in a specific embodiment, the power mechanism 15 includes a U-shaped mounting frame 151, and two mounting plates 16 arranged opposite to each other are also installed on the upper part of the support platform 11. The U-shaped mounting frame 151 is connected between the two mounting plates 16 by rotating through a rotating shaft, and the central axis of the rotating shaft and the rotating axis 14 are located on the same straight line, and the inner side of the U-shaped mounting frame 151 is fixedly connected to the lower surface of the clamping block 13.

[0047] It can be seen in this embodiment that when the U-shaped mounting bracket 151 rotates, it drives the clamping block 13 to rotate around the rotation axis 14 .

[0048] like Figure 6 As shown, in a specific embodiment, the power mechanism 15 also includes a driving device, which includes a slide rail 152 and a slider 153. The slide rail 152 is installed on both sides of one of the mounting plates 16. The slider 153 is provided with a slide groove corresponding to the slide rail 152. The slide groove allows the slider 153 to move up and down on the slide rail 152. A rack 154 is installed on the slider 153, and a gear 155 that engages with the rack is fixedly sleeved on the rotating shaft.

[0049] In the embodiment, it can be seen that when the slider 153 moves up and down on the slide rail 152, the gear 155 is rotated, thereby driving the U-shaped mounting bracket 151 to rotate through the rotating shaft.

[0050] In a specific embodiment, a cylinder 156 is installed on the mounting plate 16 , and a movable end of the cylinder 156 is fixedly connected to the slider 153 via a connecting plate.

[0051] In this embodiment, the slider 153 is pushed up and down by the cylinder 156 .

[0052] like Figure 5 As shown, in a specific embodiment, the soft package material positioning mechanism 1 also includes a vacuum generator 17, a first ventilation pipe is opened inside the support block 12, and a second ventilation pipe is opened inside the clamping block 13, one end of the first ventilation pipe is connected to the upper surface of the support block 12, and one end of the second ventilation pipe is connected to the upper surface of the clamping block 13; the other ends of the first ventilation pipe and the second ventilation pipe are both connected to the output end of the vacuum generator 17.

[0053] In this embodiment, the vacuum generator 17 generates negative pressure, which generates suction on the support surface through the first ventilation duct and the second ventilation duct. After the soft-pack material is placed in a preset position, the soft-pack material is adsorbed on the support surface, making it difficult for the soft-pack material to be displaced and thus reduce the accuracy.

[0054] In a specific embodiment, a third ventilation pipe is opened inside the profiling block 32 , one end of the third ventilation pipe is connected to the surface of the profiling block 32 , and the other end is connected to the output end of the vacuum generator 17 .

[0055] In this embodiment, as can be seen from the above, the soft-pack material is positioned at the soft-pack material positioning mechanism and attached to both sides of the profiling block. At this time, in order to remove the soft-pack material, the first ventilation pipe and the second ventilation pipe are disconnected, and the third ventilation pipe is connected, so that the outer surface of the profiling block 32 generates suction, which is conducive to the soft-pack material transfer mechanism 3 to prevent the soft-pack material from falling off when transferring the soft-pack material.

[0056] like Figure 2 As shown, in a specific embodiment, the U-shaped structural member inner surface bonding device provided by the present invention has two slide mechanisms 5 provided inside the machine, the slide mechanisms 5 are distributed in two areas, and the output end of the slide mechanism 55 can move forward and backward, the soft package material positioning mechanism 1 is fixed to the movable end of one slide mechanism, and the U-shaped structural member positioning mechanism 2 is fixed to the movable end of the other slide mechanism 5.

[0057] In this embodiment, when loading, the soft-package material positioning mechanism 1 and the U-shaped structure positioning mechanism 2 can be moved to the front of the machine through the sliding mechanism 5 to facilitate the placement of the soft-package material and the U-shaped structural parts, so as to avoid the risk of personal injury caused by the device during loading. After the loading is completed, the soft-package material positioning mechanism 1 is moved to the back of the machine through the sliding mechanism 5 to facilitate the industrial robot 31 to take out the soft-package material, and the U-shaped structure positioning mechanism 2 is moved to the back of the machine to facilitate the heating mechanism 4 to heat the positioned soft-package material and the U-shaped structural parts.

[0058] like Figure 7 As shown, in a specific embodiment, the U-shaped structural member fixing mechanism 2 includes a fixing plate 21, which is installed on the movable end of the slide mechanism 5, and a profiling platform 22 is installed above the fixing plate 21. The upper surface of the profiling platform 2 is the profiling of the outer bottom surface of the U-shaped mechanism member, so that when the U-shaped structural member is placed, the bottom of the U-shaped structural member can fit with the upper surface of the profiling platform 22, making it relatively stable; clamping cylinders 23 are provided on both sides of the profiling platform 22 and the movable end of the clamping cylinder 23 faces the profiling platform 22, and the movable end of the clamping cylinder 23 is fixedly connected to a clamping block 24, and the side of the clamping block 24 facing the profiling platform 22 has a partial profiling structure of the outer side surface of the U-shaped structural member.

[0059] In this embodiment, after the U-shaped structure is placed and the shaping block 32 absorbs the soft packaging material, the shaping block 32 is extended into the interior of the U-shaped structure by an industrial robot. Since the shaping block is a shape of the interior of the U-shaped structure, the soft packaging material at this time fits the interior of the U-shaped structure. Then, the clamping cylinder 23 drives the clamping block 24 to clamp the U-shaped structure, and finally the hot melt adhesive film is activated by the heating mechanism 4.

[0060] like Figure 8 As shown, in a specific embodiment, the heating mechanism 4 includes a hot air gun 41 and an air guide structure 42. A hot air duct is opened inside the air guide structure. The air inlet of the hot air duct is connected to the hot air gun 41, and the air outlet of the hot air duct is toward the U-shaped structural positioning mechanism.

[0061] In this embodiment, the hot air blown out by the heat gun 41 passes through the hot air channel to heat the soft packaging material located on the U-shaped structural member positioning mechanism 2 to activate the hot melt adhesive film.

[0062] like Figure 9 As shown, in a specific embodiment, the air guide mechanism 42 includes an air guide plate 421 and an air outlet plate 422. The air outlet plate 422 is arranged on the side facing the U-shaped structural member positioning mechanism 2. The air guide plate 421 is provided with an air duct groove 4211, and the air outlet plate 422 is provided with air holes 4221 evenly spaced apart. The air outlet plate 422 is fixedly connected to the air guide plate 421, and the air duct groove 4211 is connected to the air holes 4221 to form the hot air duct.

[0063] In this embodiment, the air holes 4221 are evenly spaced, so that the hot air blown out is relatively more uniform, thereby evenly heating the hot melt adhesive film.

[0064] The working process of the present invention is as follows: first, the soft packaging material positioning mechanism 1 and the U-shaped structural member positioning mechanism 2 are both located at the front of the interior of the machine. At this time, the soft packaging material and the U-shaped structural member are placed on the soft packaging material positioning mechanism 1 and the U-shaped structural member positioning mechanism 2 respectively by manual means; then the slide mechanism 5 moves the soft packaging material positioning mechanism 1 and the U-shaped structural member positioning mechanism 2 to the interior of the machine; the industrial robot 31 moves the profiling block 32 to the soft packaging material, starts the power mechanism, drives the two clamping blocks to rotate in the same direction, and the clamping block 13 pushes the soft packaging material to bend until it is completely attached to both sides of the profiling block 32; then the profiling block 32 absorbs the soft packaging material and transfers the soft packaging material to the interior of the U-shaped structural member again through the industrial robot 31, and drives the clamping block 24 to clamp and fix the U-shaped structural member by the clamping cylinder 23. At this time, the profiling block 32 does not withdraw to prevent the U-shaped structural member from deforming. Finally, the heating mechanism 4 starts to work, heats and activates the hot melt adhesive film on the soft packaging material, and completes the bonding work of the inner surface of the U-shaped structural member.

[0065] Throughout this specification, reference to terms such as "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A device for laminating the inner surface of a U-shaped structural member, comprising a machine platform, wherein the interior of the machine platform is divided into two areas on the left and right sides, one area being provided with a soft-pack material positioning mechanism, and the other area being provided with a U-shaped structural member positioning mechanism. The interior of the machine platform is further provided with a soft-pack material transfer mechanism and a heating mechanism; the soft-pack material transfer mechanism is disposed between the soft-pack material positioning mechanism and the U-shaped structural member positioning mechanism to transfer the positioned soft-pack material to the U-shaped structural member positioning mechanism; the heating mechanism is disposed behind the U-shaped structural member positioning mechanism to heat the positioned soft-pack material and the U-shaped structural member.

2. The inner surface bonding device of a U-shaped structural member according to claim 1, characterized in that: The soft pack material positioning mechanism includes a support platform, on which is mounted: A support block is provided on the upper portion of the support platform, and an upper surface of the support block is provided with a contoured structure adapted to the bottom of the U-shaped structural member; A flip mechanism, the flip mechanism comprising two clamping blocks located on either side of the support block, the upper surfaces of the clamping blocks being provided with a contoured structure adapted to the outer side of the U-shaped structural member, the upper surfaces of the clamping blocks and the upper surfaces of the support blocks being combined to form a support surface, the edges of the upper surfaces of the clamping blocks and the upper surfaces of the support blocks being close to each other to form a rotation axis; A power mechanism, wherein the output end of the power mechanism is connected to the flip mechanism to simultaneously drive the two clamping blocks to rotate in the same direction or in opposite directions around the rotation axis. The soft-pack material transfer mechanism includes an industrial robot and a profiling block mounted on the output end of the industrial robot. The profiling block is a profiling block inside a U-shaped structural member. The main body of the industrial robot has at least forward, backward, left, and right position movement directions, so that the output end of the industrial robot can be output to any point within the plane activity range. The output end of the industrial robot has up, down, and rotation functions, so that the profiling block can be used to take out or put down the soft-pack material by "up and down", and the angle of the profiling block can be adjusted by "rotation".

3. The inner surface bonding device of a U-shaped structural member according to claim 2, characterized in that: The industrial robot is Epson T3-B401S.

4. The inner surface bonding device of a U-shaped structural member according to claim 2, characterized in that: The power mechanism includes a U-shaped mounting frame, and two mounting plates arranged opposite to each other are also installed on the upper part of the support platform. The U-shaped mounting frame is connected between the two mounting plates by rotating through a rotating shaft, and the central axis of the rotating shaft and the rotating axis are located on the same straight line. The inner side of the U-shaped mounting frame is fixedly connected to the lower surface of the clamping block.

5. The inner surface bonding device of a U-shaped structural member according to claim 4, characterized in that: The power mechanism also includes a driving device, which includes a slide rail and a slider. The slide rail is installed on both sides of one of the mounting plates. The slider is provided with a slide groove corresponding to the slide rail, and the slide groove allows the slider to move up and down on the slide rail. A rack is installed on the slider, and a gear engaged with the rack is fixedly sleeved on the rotating shaft; a cylinder is installed on the mounting plate, and the movable end of the cylinder is fixedly connected to the slider through a connecting plate.

6. The inner surface bonding device of a U-shaped structural member according to claim 5, characterized in that: The soft-pack material positioning mechanism also includes a vacuum generator, a first ventilation pipe is opened inside the support block, and a second ventilation pipe is opened inside the clamping block, one end of the first ventilation pipe is connected to the upper surface of the support block, and one end of the second ventilation pipe is connected to the upper surface of the clamping block; the other ends of the first ventilation pipe and the second ventilation pipe are both connected to the output end of the vacuum generator; a third ventilation pipe is opened inside the profiling block, one end of the third ventilation pipe is connected to the surface of the profiling block, and the other end is connected to the output end of the vacuum generator.

7. The inner surface bonding device of a U-shaped structural member according to claim 1, characterized in that: There are also two sliding mechanisms inside the machine, which are distributed in two areas, and the output end of the sliding mechanism can move forward and backward. The soft package material positioning mechanism is fixed to the movable end of one sliding mechanism, and the U-shaped structural member positioning mechanism is fixed to the movable end of the other sliding mechanism.

8. The inner surface bonding device of a U-shaped structural member according to claim 1, characterized in that: The U-shaped structural member fixing mechanism includes a fixing plate, which is mounted on the movable end of the slide mechanism. A profiling platform is mounted above the fixing plate, and the upper surface of the profiling platform is in the shape of the outer bottom surface of the U-shaped structural member, so that when the U-shaped structural member is placed, the bottom of the U-shaped structural member can fit into the upper surface of the profiling platform, making it relatively stable; clamping cylinders are provided on both sides of the profiling platform, and the movable end of the clamping cylinder faces the profiling platform, and the movable end of the clamping cylinder is fixedly connected to a clamping block, and the side of the clamping block facing the profiling platform has a partial profiling structure of the outer side surface of the U-shaped structural member.

9. The inner surface bonding device of a U-shaped structural member according to claim 1, characterized in that: The heating mechanism includes a hot air gun and an air guide structure. A hot air duct is provided inside the air guide structure. The air inlet of the hot air duct is connected to the hot air gun, and the air outlet of the hot air duct faces the U-shaped structural member positioning mechanism.

10. The inner surface bonding device of a U-shaped structural member according to claim 9, characterized in that: The air guide mechanism includes an air guide plate and an air outlet plate. The air outlet plate is arranged on the side facing the U-shaped structural member positioning mechanism. An air duct groove is provided on the air guide plate. Air holes evenly spaced are provided on the air outlet plate. The air outlet plate is fixedly connected to the air guide plate, and the air duct groove is connected to the air holes to form the hot air duct.