Fabric compounding device for upper plaque of automobile tail door

Abstract

The utility model provides an automobile tail door upper plaque fabric compounding device which comprises a base, four stand columns arranged on the periphery of the base, a top plate arranged at the tops of the four stand columns, a lower mold core arranged on the base, a lifting plate arranged between the top plate and the base, and four sides of the lifting plate respectively connected to the four stand columns in a sliding mode. A lifting driving cylinder for driving the lifting plate to move up and down is arranged on the top plate; an upper mold core matched with the lower mold core is arranged on the lower end face of the lifting plate, a material clamping assembly used for clamping fabric and enabling the fabric to be horizontally located below the upper mold core is further arranged on the portion, located on the periphery of the upper mold core, of the lifting plate, and an overturning assembly used for driving the material clamping assembly to rotate downwards to be in the vertical state is further arranged on the lifting plate. The fabric compounding device for the upper trim panel of the automobile tail door disclosed by the utility model ensures that the fabric and the base plate are compounded flatly, improves the product percent of pass, is low in manual participation, reduces the cost and improves the efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive interior panel processing equipment, and more specifically, to a composite device for automotive tailgate trim panel fabric. Background Technology

[0002] With economic development, most households now own cars. As the car market continues to expand and people's understanding of cars changes, competition in the automotive industry has become increasingly fierce, especially in terms of the diversification of interior options.

[0003] As an interior trim component, the manufacturing process of the tailgate trim panel is particularly important. The tailgate trim panel consists of a base plate and a fabric layer, typically made of plastic and manufactured using injection molding. After the base plate is formed, it is bonded to the fabric layer. In existing technology, the bonding process of the tailgate trim panel base plate and fabric layer generally requires pre-applying adhesive to both the base plate and the fabric layer. Then, the base plate is placed onto the lower mold core of the bonding mold manually or by a robotic arm. Next, the fabric layer is manually placed on top of the base plate and flattened. Finally, the upper mold core moves down to close the mold, and a pre-embedded heating element in the mold heats the fabric layer and base plate, activating the adhesive. Finally, pressure is applied again to force the fabric layer and base plate to bond together.

[0004] In existing lamination devices, the fabric is placed directly on top of the substrate without any limiting or restraint. Although it is manually smoothed before mold closing, uneven fabric lamination still easily occurs after mold closing, resulting in a high product scrap rate and increased manufacturing costs. Furthermore, this method requires a high degree of manual intervention, increasing labor costs and resulting in low work efficiency. Utility Model Content

[0005] To overcome at least one of the defects in the prior art, this utility model provides a composite device for the upper trim panel of an automobile tailgate, which ensures that the fabric and the substrate are laminated smoothly, improves the product qualification rate, and requires less manual intervention, thereby reducing costs and increasing efficiency.

[0006] The technical solution of this utility model is to provide a composite device for the upper trim panel fabric of an automobile tailgate: it includes a base, four columns are arranged around the base, and a top plate is arranged on the top of the four columns. A lower mold core for placing and positioning the upper trim panel of the tailgate is arranged on the base. A lifting plate is arranged between the top plate and the base. The lifting plate is slidably connected to the four columns on all four sides, and a lifting drive cylinder for driving the lifting plate to move up and down is provided on the top plate. An upper mold core matching the lower mold core is provided on the lower end surface of the lifting plate. A clamping assembly for clamping the fabric and making it horizontally below the upper mold core is also arranged on the outer periphery of the upper mold core on the lifting plate. A flipping assembly for driving the clamping assembly to rotate downward to a vertical state is also provided on the lifting plate.

[0007] Compared with the prior art, the composite device for the upper trim panel of a car tailgate according to this utility model has the following advantages:

[0008] This utility model relates to a composite device for automotive tailgate trim panel fabric, a specialized tooling unit. It incorporates a clamping assembly on the outer periphery of the upper mold core within the composite mold, used to hold the fabric and ensure it remains flat throughout the composite process, effectively improving the flatness of the composited fabric. Furthermore, this clamping assembly can rotate vertically, allowing it to move between the working position and the loading position. In the loading position, the clamping assembly is on a vertical plane, facilitating loading and providing enhanced safety due to its side loading method. Additionally, the clamping assembly is flexibly driven by a flipping component, automatically clamping and positioning the fabric. The entire process requires minimal manual intervention, boasts a high degree of automation, and reduces processing costs.

[0009] Furthermore, the clamping assembly includes a mounting frame with multiple circumferentially distributed grippers and clamping drive cylinders for driving each gripper to open and close. The front end of the mounting frame is rotatably connected to the lower end of the lifting plate, and the drive end of the flipping assembly is hinged to the mounting frame. In the above structure, the outer peripheral edge of the fabric is clamped by multiple grippers, resulting in a simple structure and convenient operation.

[0010] Furthermore, the tilting assembly includes two tilting drive cylinders disposed at the left and right ends of the lifting plate and extending in the front-to-back direction. One end of each tilting drive cylinder is hinged to the rear end of the lifting plate, and the other end of each tilting drive cylinder is hinged to both sides of the mounting frame. A limit assembly is also provided between the mounting frame and the lifting plate. In the above structure, the clamping assembly is driven by the tilting drive cylinders, which is simple in structure and provides stable driving.

[0011] Furthermore, the limiting assembly includes two limiting plates, which are vertically connected to the left and right ends of the mounting frame. Each limiting plate has a limiting insertion hole. The left and right ends of the lifting plate are each provided with a locking pin and a locking pin drive cylinder for driving the locking pin to extend and retract horizontally. When the mounting frame is in a horizontal position, the two locking pins are respectively inserted and positioned in the limiting insertion holes of the corresponding limiting plates. In the above improved structure, the working position of the mounting frame is locked through the cooperation of the limiting plates and the locking pins on the lifting plate, ensuring structural stability and safety.

[0012] As an improvement, the mounting bracket is further provided with multiple material-hanging pins and a material-hanging drive cylinder for driving the material-hanging pins to extend and retract along their axial direction. The multiple material-hanging pins are located inside the multiple grippers. In the above improved structure, the multiple material-hanging pins achieve pre-positioning during fabric feeding, ensuring the stability of the subsequent gripper clamping process, and the clamping process is less susceptible to external interference.

[0013] In a further improvement, four upper limit posts located on the outer side of the upper mold core are connected to the lower end face of the lifting plate, and each upper limit post has a positioning rod protruding outward at its bottom; four lower limit posts located on the outer side of the lower mold core are connected to the base, and each lower limit post has a positioning hole recessed inward on its upper end face. In the above improved structure, the upper and lower limit posts control the downward stroke of the lifting plate, preventing the product from being damaged due to overpressure.

[0014] In a further improvement, at least one of the columns is provided with a vertically extending positioning plate. The positioning plate has multiple vertically arranged positioning grooves. A positioning block is rotatably connected to the outer wall of the lifting plate. The outer surface of the positioning block has a positioning protrusion that mates with the positioning groove. Furthermore, a positioning drive cylinder is connected to the side wall of the lifting plate to drive the positioning block to rotate, causing the positioning protrusion to engage with and disengage from the positioning groove. In this improved structure, the positioning plate and positioning block allow the lifting plate to be limited at different heights during lifting, preventing the risk of accidental slippage.

[0015] In a further improvement, each of the four columns is equipped with a vertically extending guide rail, and the lifting plate is surrounded by guide sliders for sliding cooperation with each of the guide rails. In the above improved structure, the slider and rail structure makes the up-and-down movement of the lifting plate more flexible and stable, and less prone to deviation.

[0016] In a further improvement, the lifting drive cylinder is a hydraulic cylinder, and a hydraulic pump station is also provided at the upper end of the top plate; a maintenance ladder is connected to the outer wall of the column. In the above improved structure, the maintenance ladder facilitates the maintenance of the hydraulic pump station at a height, and the hydraulic cylinder, as a pressure drive, provides stable and reliable power.

[0017] The aforementioned improvements and advantages of this invention will be set forth in detail in the following specific embodiments, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures particularly pointed out in the description and drawings. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the composite material device for the upper trim panel of the automobile tailgate according to this utility model.

[0019] Figure 2 This is a partial structural diagram of the automotive tailgate upper trim panel fabric composite device of this utility model.

[0020] Figure 3 for Figure 2 Another angle schematic diagram of the composite material device for the upper trim panel of the car tailgate;

[0021] Figure 4 This is a schematic diagram of the limiting structure between the lifting plate and the column in this utility model;

[0022] Figure 5 This is a schematic diagram of the clamping assembly in this utility model when it is rotated to the loading position;

[0023] Figure 6 This is a schematic diagram of the clamping assembly in this utility model when it is rotated to the working position;

[0024] Figure 7 This is a schematic diagram of the structure of one of the grippers in the clamping assembly of this utility model clamping the fabric.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base; 2. Column; 3. Top plate; 4. Lower mold core; 5. Upper mold core; 6. Lifting plate; 7. Lifting drive cylinder; 8. Mounting bracket; 9. Gripper; 901. First clamping plate; 902. Second clamping plate; 903. Fixing plate; 904. Linkage rod; 905. Connecting rod; 10. Clamping drive cylinder; 11. Tilting drive cylinder; 12. Limiting plate; 13. Limiting insertion hole; 14. Locking pin; 15. Locking pin drive 16. Material hanging pin; 17. Material hanging drive cylinder; 18. Upper limit post; 19. Positioning rod; 20. Lower limit post; 21. Positioning insertion hole; 22. Positioning plate; 23. Positioning groove; 24. Positioning block; 25. Positioning drive cylinder; 26. Guide slide rail; 27. Guide slider; 28. Hydraulic pump station; 29. ​​Maintenance ladder; 30. Guardrail; 31. First slide cylinder; 32. Second slide cylinder; Detailed Implementation

[0027] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0028] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0029] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] See Figures 1 to 7 As shown in the illustration, this application discloses a composite device for a car tailgate upper trim panel fabric, including a rectangular base 1. Four columns 2 are arranged around the base 1, and a top plate 3 is arranged on top of the four columns 2. The top plate 3, columns 2, and base 1 form the main frame of the composite device. Additionally, a lower mold core 4 for placing and positioning the tailgate upper trim panel is provided on the base 1. The lower mold core 4 has a profile matching the shape of the car tailgate upper trim panel. A lifting plate 6 is provided between the top plate 3 and the base 1. The lifting plate 6 is slidably connected to the four columns 2 on all four sides. Specifically, each of the four columns 2 is provided with a vertically extending guide rail 26, and guide sliders 27 are connected around the lifting plate 6 for sliding cooperation with each guide rail 26. The guiding structure of the sliders and rails ensures the smoothness of the lifting plate 6's vertical movement.

[0031] The top plate 3 is equipped with a lifting drive cylinder 7 for driving the lifting plate 6 to move up and down; the lower end face of the lifting plate 6 is equipped with an upper mold core 5 that matches the lower mold core 4. The lifting plate 6 is also equipped with a clamping component on the outer periphery of the upper mold core 5 for clamping the fabric and making it horizontally below the upper mold core 5. The lifting plate 6 is also equipped with a flipping component for driving the clamping component to rotate downward to a vertical position. In this structure, when the clamping component is in a horizontal position, it is the pressing position; when it is rotated to a vertical position, it is the hanging position. The operator can easily hang the fabric on the clamping component by standing on one side of the frame. After hanging, the fabric is clamped by the clamping component, and then the flipping component drives the clamping component to rotate to a horizontal position. In addition, a horizontally movable heating component (not shown in the figure) is also provided on the frame for baking and heating the fabric to activate the preset adhesive on the fabric. After the adhesive is activated, the lifting drive cylinder 7 drives the lifting plate 6 to move downward until the upper mold core 5 and the lower mold core 4 close the mold. During the mold closing process, the fabric is bonded to the tailgate trim panel.

[0032] In this embodiment, the clamping assembly includes a mounting frame 8, which has multiple grippers 9 distributed circumferentially and a clamping drive cylinder 10 for driving each gripper 9 to open and close respectively. Preferably, the mounting frame 8 is a U-shaped frame surrounding the outer periphery of the fabric with an opening on one side, and the front end (closed end) of the mounting frame 8 is rotatably connected to the lower end of the lifting plate 6 via a pivot. The drive end of the flipping assembly is hinged to the mounting frame 8 to drive the mounting frame 8 to flip up and down, so as to realize the switching of the clamping assembly between the feeding position and the working position.

[0033] The structure of the clamping assembly in a vertical position will be explained in detail below:

[0034] See appendix Figure 5 and 7In this state, the opening end of the mounting bracket 8 faces downwards, forming a door-like shape. Multiple grippers 9 and corresponding clamping drive cylinders 10 are connected to the upper end and the left and right side plates of the mounting bracket 8. Specifically, the grippers 9 include a first clamping plate 901 and a second clamping plate 902. A fixed plate 903 is connected to one end of the clamping drive cylinder 10 near the free end of the piston rod. The first clamping plate 901 is connected to the fixed plate 903, and a linkage rod 904 is also connected to the second clamping plate 902. The free end of the piston rod of the clamping drive cylinder 10 protrudes through... The first clamping plate 901 is fixed and hinged to one end of the linkage rod 904. The other end of the linkage rod 904 is connected to the second clamping plate 902. A connecting rod 905 is hinged to the middle of the second clamping plate 902, and the other end of the connecting rod 905 is hinged to the fixed plate 903. That is, the first clamping plate 901 is the fixed plate 903, and the second clamping plate 902 is the movable plate. The piston rod of the clamping drive cylinder 10 drives the linkage rod 904 to rotate, so as to realize the approach and separation of the first clamping plate 901 and the second clamping plate 902, and realize the function of clamping and releasing the fabric. In this structure, in the initial state, each second clamping plate 902 is separated from the first clamping plate 901, and the fabric can be horizontally placed into the support plane formed by multiple first clamping plates 901. Then, the multiple second clamping plates 902 rotate and clamp the fabric to the other side, realizing the feeding process.

[0035] See appendix for further details. Figure 7 To further enable the movement and adjustment of the positions of each gripper 9, in this embodiment, a plurality of first slide cylinders 31 corresponding to each gripper 9 are provided on the mounting frame 8. The slide plate of the first slide cylinder 31 moves along the fabric from the outside to the inside, and a second slide cylinder 32 is connected to the slide plate of the first slide cylinder 31. The slide plate of the second slide cylinder 32 can move in a direction perpendicular to the fabric. The clamping drive cylinder 10 is connected to the slide plate of the second slide cylinder 32, so that each gripper 9 can move in a direction parallel to and perpendicular to the fabric in the vertical plane of the feeding position, thereby enabling each gripper 9 to clamp the outer edge of the fabric more accurately and ensuring the stability of the clamping.

[0036] Furthermore, to facilitate material loading, the mounting frame 8 is equipped with multiple hanging pins 16 and a hanging drive cylinder 17 for driving the hanging pins 16 to extend and retract along their axial direction. The multiple hanging pins 16 are located inside the multiple grippers 9. Preferably, there are four hanging pins 16, that is, hanging pins 16 and a clamping drive cylinder for driving the hanging pins 16 to extend and retract are respectively provided on the mounting frame 8 at the four corners of the fabric. In the initial state, the fabric is pressed vertically into the support plane formed by the outer end faces of the multiple first clamping plates by manual operation or a robotic arm. The four hanging pins 16 penetrate the four corners of the fabric to limit its position. Finally, the multiple corresponding second clamping plates are flipped towards the corresponding first clamping plate 901 to achieve fabric positioning. After adding the hanging pins 16, the external force can be released after the fabric is pinned and hung, so that the clamping action of the multiple second clamping plates will not be interfered with.

[0037] In addition, in this embodiment, the flipping assembly includes two flipping drive cylinders 11 disposed at the left and right ends of the lifting plate 6 and extending in the front-back direction. One end of each flipping drive cylinder 11 is hinged to the rear end of the lifting plate 6, and the other end of each flipping drive cylinder 11 is hinged to both sides of the mounting frame 8. The mounting frame 8 can be switched between the working position and the loading position by extending and retracting the two flipping drive cylinders 11. Furthermore, a limiting component is provided between the mounting frame 8 and the lifting plate 6 to limit the clamping assembly to a horizontal working position, so as to prevent the clamping assembly from flipping due to the failure of the flipping drive cylinder 11 and improve the safety of use.

[0038] More specifically, the limiting component in this embodiment includes two limiting plates 12, which are vertically connected to the left and right ends of the mounting frame 8. Each of the two limiting plates 12 has a limiting insertion hole 13. The left and right ends of the lifting plate 6 are provided with locking pins 14 and locking pin drive cylinders 15 for driving the locking pins 14 to extend and retract horizontally. When the mounting frame 8 is in a horizontal state (working position), the two locking pins 14 are respectively inserted and positioned in the limiting insertion holes 13 of the corresponding limiting plates 12. When it is necessary to rotate the clamping component, the limiting component must be unlocked first. That is, the two locking pins 14 are driven by the locking pin drive cylinder 15 to disengage from the limiting insertion holes 13 on the two limiting plates 12 before the mounting frame 8 can rotate downward. Otherwise, the locking pins 14 limit the rotation.

[0039] In addition, to control the maximum downward stroke of the lifting plate 6 and prevent overpressure from damaging the product, four upper limit posts 18 located on the outer side of the upper mold core 5 are connected to the lower end face of the lifting plate 6. Each upper limit post 18 has a convex positioning rod 19 at its bottom. Correspondingly, four lower limit posts 20 located on the outer side of the lower mold core 4 are connected to the base 1. Each lower limit post 20 has a recessed positioning hole 21 on its upper end face. In this structure, the positions of the positioning rod 19 and the positioning hole 21 can be interchanged, not limited to the form shown in the attached diagram. That is, the positioning hole 21 can be set at the bottom of the upper limit post 18, and the positioning rod 19 can be set at the top of the lower limit post 20.

[0040] In this embodiment, at least one column 2 is provided with a vertically extending positioning plate 22, and the positioning plate 22 is provided with a plurality of vertically arranged positioning grooves 23. A positioning block 24 is rotatably connected to the outer wall of the lifting plate 6. The outer surface of the positioning block 24 is provided with a positioning protrusion that cooperates with the positioning groove 23. A positioning drive cylinder 25 is also connected to the side wall of the lifting plate 6 for driving the positioning block 24 to rotate so that the positioning protrusion engages with the positioning groove 23 and disengages from the positioning groove 23. Preferably, corresponding positioning plates 22 are provided on the front side wall of the left rear column 2 and the rear side wall of the right front column 2 of the frame. The two positioning plates 22 are arranged diagonally opposite each other. Similarly, there are two positioning blocks 24 and two positioning drive cylinders 25, which can ensure the stability of the limiting structure. Of course, in some other embodiments, the two positioning plates 22 can be arranged symmetrically from left to right, or even positioning plates 22 can be provided on all four columns 2.

[0041] In this embodiment, the lifting drive cylinder 7 and the two tilting drive cylinders 11 are preferably hydraulic cylinders, which have greater driving force and are more stable. A corresponding hydraulic pump station 28 is provided on the top plate 3. As for the clamping drive cylinder 10, locking pin drive cylinder 15, hanging drive cylinder 17, etc., the driving force required is relatively small, so a pneumatic cylinder structure is preferred. However, all drive cylinders can also be hydraulic cylinders.

[0042] In addition, since the entire device is quite tall, a corresponding maintenance ladder 29 is connected to the outer wall of the column 2 for easy maintenance, and a guardrail 30 is installed around the top plate 3.

[0043] In the description of this application, the references to terms such as "this embodiment," "some embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions 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 a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A composite device for the upper trim panel fabric of an automobile tailgate, characterized in that: The device includes a base (1), four columns (2) are arranged around the base (1), a top plate (3) is arranged on the top of the four columns (2), a lower mold core (4) for placing and positioning the tailgate trim panel is arranged on the base (1), a lifting plate (6) is arranged between the top plate (3) and the base (1), the lifting plate (6) is slidably connected to the four columns (2) on all four sides, and a lifting drive cylinder (7) for driving the lifting plate (6) to move up and down is arranged on the top plate (3); an upper mold core (5) matching the lower mold core (4) is arranged on the lower end surface of the lifting plate (6), a clamping assembly for clamping the fabric and making it horizontally below the upper mold core (5) is also arranged on the lifting plate (6) at the outer periphery of the upper mold core (5), and a flipping assembly for driving the clamping assembly to rotate downward to a vertical state is also arranged on the lifting plate (6).

2. The automotive tailgate upper trim panel fabric composite device according to claim 1, characterized in that: The clamping assembly includes a mounting frame (8), which has a plurality of circumferentially distributed grippers (9) and a clamping drive cylinder (10) for driving each gripper (9) to open and close respectively; the front end of the mounting frame (8) is rotatably connected to the lower end of the lifting plate (6), and the drive end of the flipping assembly is hinged to the mounting frame (8).

3. The automotive tailgate upper trim panel fabric composite device according to claim 2, characterized in that: The flipping assembly includes two flipping drive cylinders (11) arranged at the left and right ends of the lifting plate (6) and extending in the front-back direction. One end of the two flipping drive cylinders (11) is respectively hinged to the rear end of the lifting plate (6), and the other end of the two flipping drive cylinders (11) is respectively hinged to both sides of the mounting frame (8). A limit component is also provided between the mounting frame (8) and the lifting plate (6).

4. The automotive tailgate upper trim panel fabric composite device according to claim 3, characterized in that: The limiting assembly includes two limiting plates (12), which are vertically connected to the left and right ends of the mounting frame (8). Each of the two limiting plates (12) has a limiting insertion hole (13). The left and right ends of the lifting plate (6) are provided with locking pins (14) and locking pin drive cylinders (15) for driving the locking pins (14) to extend and retract horizontally. When the mounting frame (8) is in a horizontal state, the two locking pins (14) are respectively inserted and positioned in the limiting insertion holes (13) of the corresponding limiting plates (12).

5. The automotive tailgate upper trim panel fabric composite device according to claim 2, 3, or 4, characterized in that: The mounting bracket (8) is also provided with a plurality of hanging pins (16) and a hanging drive cylinder (17) for driving the hanging pins (16) to extend and retract along their axial direction. The plurality of hanging pins (16) are located inside the plurality of grippers (9).

6. The automotive tailgate upper trim panel fabric composite device according to claim 5, characterized in that: The lower end face of the lifting plate (6) is connected to four upper limit posts (18) located outside the upper mold core (5), and the bottom of each upper limit post (18) is provided with a positioning rod (19) protruding outward; the base (1) is connected to four lower limit posts (20) located outside the lower mold core (4), and the upper end face of each lower limit post (20) is provided with a positioning hole recessed inward.

7. The composite device for the upper trim panel of an automobile tailgate according to claim 1, characterized in that: At least one of the columns (2) is provided with a vertically extending positioning plate (22), and the positioning plate (22) is provided with a plurality of vertically arranged positioning grooves (23). A positioning block (24) is rotatably connected to the outer wall of the lifting plate (6). The outer side of the positioning block (24) is provided with a positioning protrusion that cooperates with the positioning groove (23). A positioning drive cylinder (25) for driving the positioning block (24) to rotate so that the positioning protrusion cooperates with the positioning groove (23) and disengages from the positioning groove (23) is also connected to the side wall of the lifting plate (6).

8. The automotive tailgate upper trim panel fabric composite device according to claim 1, characterized in that: Each of the four columns (2) is provided with a vertically extending guide rail (26), and the lifting plate (6) is connected around its perimeter with guide sliders (27) for sliding cooperation with each of the guide rails (26).

9. The automotive tailgate upper trim panel fabric composite device according to claim 1, characterized in that: The lifting drive cylinder (7) is an oil cylinder, and a hydraulic pump station (28) is also provided on the upper end of the top plate (3); a maintenance ladder (29) is connected to the outer wall of the column (2).

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