Automatic coating equipment for automotive upholstery

Abstract

The invention relates to the technical field of processing of automotive upholstery, and discloses automatic coating equipment for automotive upholstery, the automatic coating equipment comprises a workbench, the upper wall of the workbench is fixedly connected with a lower mold, the workbench is internally provided with a foaming filling material injection pipe and a vacuum extraction pipe, the foaming filling material injection pipe is connected with external foaming equipment, the vacuum extraction pipe is connected with external vacuum extraction equipment, an upper mold is arranged above the lower mold, a displacement mechanism is arranged at the top of the upper mold, and the upper mold is driven by the displacement mechanism to horizontally move and vertically ascend and descend. And an edge folding mechanism is arranged at the lower part of the upper die. The outer skin is adsorbed through the vacuum suction plate, the linear guide rail and the displacement mechanism driven by the air cylinder are combined, the edge of the outer skin can be automatically folded to the bottom wall of the base plate in cooperation with the lever linkage design of the edge folding mechanism, on one hand, automatic and rapid feeding and wrapping of the outer skin are achieved, and on the other hand, the wrapping accuracy of the outer skin is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile interior trim processing, in particular to automatic covering equipment for automobile interior trim. Background Art

[0002] The wrapping process for automotive interior parts is a key step in enhancing the aesthetics, tactility, and functionality of vehicle interiors. Traditionally, this process relies on manual labor or semi-automated equipment. Manual wrapping technicians first cut the fabric and foam to the required size, then spray glue on the frame, heat it with a drying gun, and laminate the foam pieces onto the frame before laminating them with the fabric pieces using the same method. Alternatively, the foam and fabric can be flame-laminated before being wrapped onto the frame. Semi-automated wrapping processes often use hot-press lamination to wrap automotive interior parts.

[0003] In the existing technology, preformed foam and adhesive are often used to bond the substrate and the outer skin. Due to the use of this multi-component splicing method, there are problems such as low efficiency, poor consistency, and difficulty in covering complex curved surfaces. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides an automatic covering equipment for automobile interior parts, which solves the problems of poor consistency, low efficiency and difficulty in covering complex curved surfaces in the covering process of automobile interior parts.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic covering device for automobile interior decoration parts, comprising a workbench, a lower mold is fixedly connected to the upper wall of the workbench, a foaming filling material injection pipe and a vacuum extraction pipe are arranged inside the workbench, wherein the foaming filling material injection pipe is connected to an external foaming device, and the vacuum extraction pipe is connected to an external vacuum extraction device, an upper mold is arranged above the lower mold, a displacement mechanism is arranged on the top of the upper mold, and the upper mold is driven to move horizontally and lift vertically by the displacement mechanism, a folding mechanism is arranged at the lower part of the upper mold, a vacuum suction plate is arranged in the upper mold, which is connected to the vacuum extraction device through a retractable pipe, when the covering device is running, the interior decoration part substrate is first placed on the lower mold, and then the inner skeleton is placed on the interior decoration part substrate, and the vacuum suction plate is used to suck the inner frame of the interior decoration part into the mold. The outer skin is clamped above the inner frame, and the upper mold is driven to press downward toward the lower mold by the displacement mechanism, so that the outer skin completely wraps the outer wall of the inner frame, and the edge of the outer skin is folded to the bottom wall of the interior component substrate by the folding mechanism. Finally, the interior component substrate is sleeved on the outside of the lower mold, and the edge of the outer skin is embedded between the side wall of the lower mold and the inner wall of the interior component substrate. At this time, the lower mold and the upper mold are interlocked to form a stable cavity, and the combination of the outer skin, the inner frame and the interior component substrate is completely filled and confined in the cavity. At the same time, the foaming filling material is injected between the interior component substrate and the outer skin through the foaming filling material injection pipe. In the process of foaming the foaming filling material using microwave heating equipment, the foaming filling material and the inner frame undergo a cross-linking reaction to form a flexible interface, and the outer skin, the inner frame and the interior component substrate are bonded together by the foaming filling material.

[0006] Preferably, the inner bottom wall of the workbench is fixedly connected with a sliding column 1, the top of the sliding column 1 is slidably connected with a bridge plate 1, the bottom wall of the bridge plate 1 is connected to the inner bottom wall of the workbench through a spring, the spring is sleeved on the outside of the sliding column 1, the bridge plate 1 is fixedly connected with three evenly arranged support cylinders, and the three support cylinders respectively pass through the top wall of the workbench and the lower mold in sequence, and are slidably connected to the workbench and the lower mold, the tops of the three support cylinders are jointly sleeved and fixedly connected with a bridge plate 2, the support cylinder is a top-down through-structure, wherein the vacuum extraction pipe is passed through and fixedly connected to the support cylinder located in the middle, and two foam filling The material injection pipes are respectively passed through and fixedly connected to the support cylinders on both sides. The side walls of the workbench are respectively vertically provided with slot one and slot two. The foaming filling material injection pipe passes through slot one and is connected to the external foaming equipment. The vacuum extraction pipe passes through slot two and is connected to the external vacuum extraction equipment. When the jumper plate two is subjected to downward pressure, the three support cylinders are driven to descend, and the vacuum extraction pipe and the foaming filling material injection pipe are simultaneously driven downward until the jumper plate two is embedded in the corresponding groove opened on the top wall of the lower mold. When the downward pressure on the jumper plate two is released, the spring resets and pushes the jumper plate one to rise, synchronously driving the three support cylinders to rise.

[0007] Preferably, the upper wall of the base plate is provided with a through hole corresponding to the support tube.

[0008] Preferably, the displacement mechanism includes a linear guide rail, the top wall of the linear guide rail is fixedly connected to a fixed beam, the movable end of the linear guide rail is fixedly connected to a mounting plate, the top wall of the mounting plate is fixedly connected to a mounting bracket, the mounting bracket is sleeved and slidably connected to the top wall of the fixed beam, and the four corners of the mounting plate are penetrated and slidably connected with sliding columns 2, the bottom ends of the four sliding columns 2 are respectively fixedly connected to an upper pressure plate, and the four corners of the bottom wall of the upper pressure plate are respectively fixedly connected to the four corners of the top wall of the upper mold through support columns.

[0009] Preferably, the displacement mechanism further comprises a cylinder, the outer wall of the top of the cylinder is fixedly connected to the center of the mounting plate, and the output end of the cylinder is fixedly connected to the center of the top wall of the upper pressure plate.

[0010] Preferably, the bottom wall of the vacuum suction plate is provided with densely arranged suction ports, the suction ports are connected to the inner cavity of the vacuum suction plate, the top wall of the vacuum suction plate is fixedly connected to a top column, the inner cavity of the top column is connected to the inner cavity of the vacuum suction plate, and the inner cavity of the top column is connected to the vacuum extraction equipment through a retractable pipe, and the outer wall of the top column passes through and is interactively connected to the center of the top wall of the upper mold.

[0011] The top end of the second link is rotated and connected to the folding plate, and the middle end of the second link is rotatably connected to the rotating seat, and the side wall of the rotating seat is fixedly connected to the top of the upper mold wall, and the bottom end of the second link is fixedly connected to the limit block, and the folding plate passes through and is horizontally slidably connected in the limit block. In the process of the vacuum suction plate rising into the interior of the upper mold, the base pushes the connecting rod one, and the connecting rod one pushes the push plate to move horizontally toward the outer side of the upper pressure plate, so that the top end of the connecting rod two moves outward. Under the action of the lever, the bottom end of the connecting rod two pushes the folding plate to move horizontally toward the upper mold. When the vacuum suction plate rises to the highest position, the folding plate is flush with the inner wall of the interior decoration base plate toward the inner side of the upper mold.

[0012] Preferably, the inner skeleton adopts a hollow structure, and the surface of the inner skeleton is provided with densely distributed barbed micro-grooves.

[0013] The present invention provides an automatic wrapping device for automobile interior parts. It has the following beneficial effects: 1. The present invention uses a vacuum suction plate to absorb the outer skin, combines a linear guide rail with a cylinder-driven displacement mechanism, and cooperates with the lever linkage design of the folding mechanism (push plate + connecting rod + limit block) to automatically fold the edge of the outer skin to the bottom wall of the base plate, realizing automatic and rapid loading and covering of the outer skin on the one hand, and improving the accuracy of outer skin covering on the other hand.

[0014] 2. This invention integrates a vacuum extraction tube and a foam injection tube through a support tube, creating a vacuum environment within the chamber. This allows for uniform filling of the two-component PUR foam at temperatures between 70°C and 90°C. The vacuum suction plate simultaneously maintains tension on the outer skin, eliminating wrinkles. The TPU skeleton's surface is plasma-treated and designed with barbed microgrooves. The PUR foam strengthens the interface through a dual mechanism of urethane covalent bonds and micropore mechanical interlocking, significantly reducing cold shrinkage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 Schematic diagram of the internal structure of the workbench in the present invention; Figure 3 Schematic diagram of the internal structure of the workbench in the present invention; Figure 4 Schematic diagram of the interior trim substrate and the support tube in the present invention; Figure 5 is a three-dimensional schematic diagram of the displacement mechanism of the present invention; Figure 6 Schematic diagram of the internal structure of the upper mold in the present invention; Figure 7 Schematic diagram of the structure of the folding mechanism of the present invention; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 It is a three-dimensional schematic diagram of the inner skeleton in the present invention.

[0016] Among them, 1. workbench; 101. Slot 1; 102. Slot 2; 2. Lower mold; 3. Upper mold; 301. Vacuum suction plate; 302. Ejector column; 4. Foam filling material injection tube; 5. Vacuum extraction tube; 6. Support cylinder; 7. Jumper plate 2; 8. Spring; 9. Jumper plate 1; 10. Slide column 1; 11. Interior parts base plate; 12. Inner skeleton; 13. Upper pressure plate; 1301. Support column; 14. Cylinder; 15. Mounting plate; 16. Linear guide; 17. Mounting frame; 18. Fixed beam; 19. Slide column 2; 20. Connecting rod 1; 21. Push plate; 22. Connecting rod 2; 23. Rotating seat; 24. Folding plate; 25. Limit block; 26. Base. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0018] Please see the attached Figure 1 -Attached Figure 9 An embodiment of the present invention provides an automatic covering device for automobile interior decoration parts, including a workbench 1, a lower mold 2 is fixedly connected to the upper wall of the workbench 1, a foaming filling material injection pipe 4 and a vacuum extraction pipe 5 are arranged inside the workbench 1, wherein the foaming filling material injection pipe 4 is connected to an external foaming device, and the vacuum extraction pipe 5 is connected to an external vacuum extraction device. An upper mold 3 is arranged above the lower mold 2, and a displacement mechanism is arranged on the top of the upper mold 3, which drives the upper mold 3 to move horizontally and lift vertically. A folding mechanism is arranged at the lower part of the upper mold 3, and a vacuum suction plate 301 is arranged in the upper mold 3, which is connected to the vacuum extraction device through a retractable pipe.

[0019] When the covering equipment is running, the interior part substrate 11 is first placed on the lower mold 2, and then the inner frame 12 is placed on the interior part substrate 11. The outer skin is sucked and clamped by vacuum suction through the vacuum suction plate 301, and is moved to the top of the inner frame 12 through the displacement mechanism. The upper mold 3 is driven by the displacement mechanism to press downward toward the lower mold 2 so that the outer skin completely wraps the outer wall of the inner frame 12. At this time, the outer skin, the inner frame 12 and the interior part substrate are combined and embedded in the upper mold 3. At the same time, the folding mechanism is used to fold the edge of the outer skin to the bottom wall of the interior part substrate. Finally, the interior part substrate 11 is completely sleeved on the outside of the lower mold 2. The edge of the outer skin is embedded between the side wall of the lower mold 2 and the inner wall of the interior component substrate 11. At this time, the lower mold 2 and the upper mold 3 are embedded in each other to form a stable cavity, and the combination of the outer skin, the inner skeleton 12 and the interior component substrate 11 is completely filled and confined in the cavity. At the same time, the foaming filling material is injected between the interior component substrate 11 and the outer skin through the foaming filling material injection tube 4. In the process of foaming the foaming filling material using microwave heating equipment, the foaming filling material and the inner skeleton 12 undergo a cross-linking reaction to form a flexible interface, and the outer skin, the inner skeleton 12 and the interior component substrate 11 are bonded together through the foaming filling material.

[0020] The inner frame 12 is made of thermoplastic polyurethane (TPU, containing hydroxyl active groups) through injection molding. The surface of the inner frame 12 is plasma treated to activate the hydroxyl groups and increase the reactivity with the foam filling material. At the same time, the inner frame 12 adopts a hollow structure and is provided with densely distributed barbed micro-grooves on the surface of the inner frame 12 to achieve mechanical interlocking with the foam filling material and inhibit delamination of the foam layer. The foaming filling material is a two-component polyurethane foam (PUR, component A: isocyanate prepolymer; component B: polyether polyol + catalyst + foaming agent), and its foaming temperature is 70-90°C, which will not damage the interior component substrate 11 and the outer skin; The temperature is controlled at 75-85°C by microwave heating to foam the foaming filling material. In the early stage of the foaming process, the surface of the inner skeleton 12 of the TPU is softened, so that the polymer chains of the uncured PUR are entangled with the surface molecular chains of the TPU, making the cured molding have a soft touch.

[0021] The inner bottom wall of the workbench 1 is fixedly connected with a sliding column 10, and the top of the sliding column 10 is slidably connected with a cross-over plate 9. The bottom wall of the cross-over plate 9 is connected to the inner bottom wall of the workbench 1 through a spring 8. The spring 8 is sleeved on the outside of the sliding column 10. The cross-over plate 9 is fixedly connected with three evenly arranged support cylinders 6, and the three support cylinders 6 respectively pass through the top wall of the workbench 1 and the lower mold 2 in sequence, and are slidably connected to the workbench 1 and the lower mold 2. The tops of the three support cylinders 6 are jointly sleeved and fixedly connected with a cross-over plate 2 7. The support cylinder 6 is a top-down through-structure, wherein the vacuum extraction tube 5 is passed through and fixedly connected to the support cylinder 6 located in the middle, and the two foaming filling material injection tubes 4 are respectively passed through. The workbench 1 is provided with a slot 101 and a slot 2 102 vertically formed in the side walls of the workbench 1. The foaming material injection pipe 4 passes through slot 101 and is connected to the external foaming equipment. The vacuum extraction pipe 5 passes through slot 2 102 and is connected to the external vacuum extraction equipment. When the jumper plate 2 7 is subjected to downward pressure, the three support cylinders 6 are driven downward, and the vacuum extraction pipe 5 and the foaming material injection pipe 4 are simultaneously driven downward until the jumper plate 2 7 is embedded in the corresponding grooves provided in the top wall of the lower mold 2. When the downward pressure on the jumper plate 2 7 is released, the spring 8 resets and pushes the jumper plate 1 9 upward, simultaneously driving the three support cylinders 6 upward. The upper wall of the base plate 11 is provided with through holes corresponding to the support cylinders 6.

[0022] It should be noted that spring 8 provides a certain supporting force. When the outer skin, inner frame 12, and interior trim base are assembled and inserted into the upper mold 3, a certain distance between the interior trim base and the lower mold 2 remains. This allows the outer skin edge to be smoothly folded onto the bottom wall of the interior trim base by the folding mechanism. This structure also enables the interior trim to be automatically separated from the lower mold 2 after the coating is completed.

[0023] The three support tubes 6 protect the vacuum extraction tube 5 and the foam filling material injection tube 4, and the downward pressure is borne by the three support tubes 6. On the one hand, through the cooperation between the central support tube 6 and the vacuum extraction tube 5, the cavity between the lower mold 2 and the upper mold 3 is vacuumed before the foam material is injected, so that the foam material is injected from both sides and gradually fills the center. In conjunction with the vacuum suction of the vacuum suction plate 301 on the outer skin, it ensures that the foam material fully fills the cavity, maintains the foaming pressure, and reduces subsequent shrinkage. On the other hand, the three support tubes 6 also play a positioning role. During actual operation, the interior component substrate can be quickly positioned by simply inserting the through-holes of the interior component substrate into the three support tubes 6. At the same time, the interior component substrate is limited to avoid deviation during the downward pressure process (when the lower mold 2 is not fully embedded).

[0024] The displacement mechanism includes a linear guide 16, the top wall of which is fixedly connected to a fixed beam 18. The movable end of the linear guide 16 is fixedly connected to a mounting plate 15. The top wall of the mounting plate 15 is fixedly connected to a mounting bracket 17. The mounting bracket 17 is sleeved and slidably connected to the top wall of the fixed beam 18. Slide posts 19 are inserted through and slidably connected to the four corners of the mounting plate 15. The bottom ends of the four slide posts 19 are respectively fixedly connected to the upper pressure plate 13. The four corners of the bottom wall of the upper pressure plate 13 are respectively fixedly connected to the four corners of the top wall of the upper mold 3 via support posts 1301. The displacement mechanism also includes a cylinder 14. The top outer wall of the cylinder 14 is fixedly connected to the center of the mounting plate 15, and the output end of the cylinder 14 is fixedly connected to the center of the top wall of the upper pressure plate 13. The bottom wall of the vacuum suction plate 301 is provided with densely arranged suction ports, which are connected to the inner cavity of the vacuum suction plate 301. The top wall of the vacuum suction plate 301 is fixedly connected to a top column 302. The inner cavity of the top column 302 is connected to the inner cavity of the vacuum suction plate 301, and the inner cavity of the top column 302 is connected to the vacuum extraction equipment through a retractable pipe. The outer wall of the top column 302 passes through and is interactively connected to the center of the top wall of the upper mold 3.

[0025] The horizontal movement of the upper mold 3 is achieved through the linear guide 16, and the vertical lifting of the upper mold 3 is achieved by the cylinder 14. At the same time, in conjunction with the vacuum suction plate 301, the displacement mechanism not only participates in the actual coating process, but also realizes the clamping and loading of the outer skin.

[0026] The folding mechanism includes a base 26, the bottom wall of the base 26 is fixedly connected to the top wall of the top column 302, and the four connecting rods 20 are rotatably connected around the top of the base 26. The top of the connecting rod 20 is rotatably connected to the push plate 21, and the push plate 21 is horizontally embedded and slidably connected to the plate body of the upper pressing plate 13. The push plate 21 is rotatably connected to the connecting rod 22 at one end toward the outer side of the upper pressing plate 13. The top of the connecting rod 22 is rotatably connected to the folding plate 24. The middle of the connecting rod 22 is rotatably connected to the rotating seat 23. The side wall of the rotating seat 23 is fixedly connected to the top of the outer wall of the upper mold 3. The outer side of the upper mold 3 The bottom of the wall is fixedly connected to the limit block 25, and the folding plate 24 passes through and is horizontally slidably connected in the limit block 25. In the process of the vacuum suction plate 301 rising into the interior of the upper mold 3, the connecting rod 20 is pushed by the base 26, and the connecting rod 20 pushes the push plate 21 to move horizontally toward the outside of the upper pressure plate 13, so that the top of the connecting rod 22 moves outward. Under the action of the lever, the bottom end of the connecting rod 22 pushes the folding plate 24 to move horizontally toward the inside of the upper mold 3. When the vacuum suction plate 301 rises to the highest position, the folding plate 24 is flush with the inner wall of the interior decoration base plate 11 toward the inner side of the upper mold 3.

[0027] 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic wrapping device for automobile interior parts, comprising a workbench (1), characterized in that: The upper wall of the workbench (1) is fixedly connected to the lower mold (2), and a foaming filling material injection pipe (4) and a vacuum extraction pipe (5) are arranged inside the workbench (1), wherein the foaming filling material injection pipe (4) is connected to an external foaming device, and the vacuum extraction pipe (5) is connected to an external vacuum extraction device. An upper mold (3) is arranged above the lower mold (2), and a displacement mechanism is arranged on the top of the upper mold (3), which drives the upper mold (3) to move horizontally and lift vertically. A folding mechanism is arranged at the bottom of the upper mold (3), and a vacuum suction plate (301) is arranged inside the upper mold (3), which is connected to the vacuum extraction device through a retractable pipe. When the coating device is running, the interior decoration substrate (11) is first placed on the lower mold (2), and then the inner frame (12) is placed on the interior decoration substrate (11). The outer skin is clamped to the top of the inner frame (12) by the vacuum suction plate (301), and the upper skin is moved horizontally and vertically by the displacement mechanism. The structure drives the upper mold (3) to press downward toward the lower mold (2), so that the outer skin completely wraps the outer wall of the inner frame (12), and the edge of the outer skin is folded to the bottom wall of the interior component substrate by the folding mechanism. Finally, the interior component substrate (11) is sleeved on the outside of the lower mold (2), and the edge of the outer skin is embedded between the side wall of the lower mold (2) and the inner wall of the interior component substrate (11). At this time, the lower mold (2) and the upper mold (3) are interlocked to form a stable cavity, and the combination of the outer skin, the inner frame (12) and the interior component substrate (11) is completely filled and confined in the cavity. At the same time, the foaming filling material is injected into the space between the interior component substrate (11) and the outer skin through the foaming filling material injection pipe (4). In the process of foaming the foaming filling material using the microwave heating equipment, the foaming filling material and the inner frame (12) undergo a cross-linking reaction to form a flexible interface, and the outer skin, the inner frame (12) and the interior component substrate (11) are bonded together by the foaming filling material.

2. The automatic wrapping equipment for automobile interior parts according to claim 1, characterized in that: The inner bottom wall of the workbench (1) is fixedly connected with a sliding column (10), and the top of the sliding column (10) is slidably connected with a cross-over plate (9). The bottom wall of the cross-over plate (9) and the inner bottom wall of the workbench (1) are connected by a spring (8), and the spring (8) is sleeved on the outside of the sliding column (10). The cross-over plate (9) is fixedly connected with three evenly arranged support cylinders (6), and the three support cylinders (6) respectively pass through the top wall of the workbench (1) and the lower mold (2) in sequence, and are slidably connected to the workbench (1) and the lower mold (2). The tops of the three support cylinders (6) are jointly sleeved and fixedly connected with a cross-over plate (7). The support cylinder (6) is a top-to-bottom through structure, wherein the vacuum extraction tube (5) is passed through and fixedly connected to the support cylinder (6) located in the middle, and two foam filling materials are provided. The injection pipes (4) are respectively passed through and fixedly connected to the support cylinders (6) located on both sides. The side walls of the workbench (1) are respectively vertically provided with slots 1 (101) and slots 2 (102). The foaming filling material injection pipe (4) passes through slot 1 (101) and is connected to the external foaming equipment. The vacuum extraction pipe (5) passes through slot 2 (102) and is connected to the external vacuum extraction equipment. When the jumper plate 2 (7) is subjected to downward pressure, the three support cylinders (6) are driven to descend, and the vacuum extraction pipe (5) and the foaming filling material injection pipe (4) are simultaneously driven downward until the jumper plate 2 (7) is embedded in the corresponding groove opened on the top wall of the lower mold (2). When the downward pressure on the jumper plate 2 (7) is released, the spring (8) is reset and pushes the jumper plate 1 (9) to rise, and simultaneously drives the three support cylinders (6) to rise.

3. The automatic wrapping equipment for automobile interior parts according to claim 2, characterized in that: A through hole corresponding to the support cylinder (6) is provided on the upper wall of the base plate (11).

4. The automatic wrapping equipment for automobile interior parts according to claim 1, characterized in that: The displacement mechanism includes a linear guide rail (16), the top wall of the linear guide rail (16) is fixedly connected to a fixed beam (18), the movable end of the linear guide rail (16) is fixedly connected to a mounting plate (15), the top wall of the mounting plate (15) is fixedly connected to a mounting frame (17), the mounting frame (17) is sleeved and slidably connected to the top wall of the fixed beam (18), the four corners of the mounting plate (15) are penetrated and slidably connected to sliding columns (19), the bottom ends of the four sliding columns (19) are respectively fixedly connected to an upper pressure plate (13), and the four corners of the bottom wall of the upper pressure plate (13) are respectively fixedly connected to the four corners of the top wall of the upper mold (3) through support columns (1301).

5. The automatic wrapping equipment for automobile interior parts according to claim 4, characterized in that: The displacement mechanism further comprises a cylinder (14), the top outer wall of the cylinder (14) is fixedly connected to the center of the mounting plate (15), and the output end of the cylinder (14) is fixedly connected to the center of the top wall of the upper pressing plate (13).

6. The automatic wrapping equipment for automobile interior parts according to claim 1, characterized in that: The bottom wall of the vacuum suction plate (301) is provided with densely arranged suction ports, which are communicated with the inner cavity of the vacuum suction plate (301). The top wall of the vacuum suction plate (301) is fixedly connected with a top column (302). The inner cavity of the top column (302) is communicated with the inner cavity of the vacuum suction plate (301), and the inner cavity of the top column (302) is connected to the vacuum extraction device through a retractable pipe. The outer wall of the top column (302) passes through and is interactively connected to the center of the top wall of the upper mold (3).

7. The automatic wrapping equipment for automobile interior parts according to claim 6, characterized in that: The folding mechanism includes a base (26), the bottom wall of the base (26) is fixedly connected to the top wall of the top column (302), the four connecting rods (20) are rotatably connected around the top of the base (26), the top of the connecting rod (20) is rotatably connected to a push plate (21), the push plate (21) is horizontally embedded and slidably connected in the plate body of the upper pressure plate (13), the push plate (21) is rotatably connected to the connecting rod (22) at one end toward the outer side of the upper pressure plate (13), the top of the connecting rod (22) is rotatably connected to the folding plate (24), the middle of the connecting rod (22) is rotatably connected to the rotating seat (23), the side wall of the rotating seat (23) is fixedly connected to the top of the outer wall of the upper mold (3), The bottom of the outer wall of the upper mold (3) is fixedly connected to the limit block (25), and the folding plate (24) passes through and is horizontally slidably connected in the limit block (25). When the vacuum suction plate (301) rises and enters the interior of the upper mold (3), the connecting rod (20) is pushed by the base (26), and the connecting rod (20) pushes the push plate (21) to move horizontally toward the outside of the upper pressure plate (13), so that the top of the connecting rod (22) moves outward. Under the action of the lever, the bottom end of the connecting rod (22) pushes the folding plate (24) to move horizontally toward the inside of the upper mold (3). When the vacuum suction plate (301) rises to the highest position, the folding plate (24) is flush with the inner wall of the interior trim base plate (11) toward the inner side of the upper mold (3).

8. The automatic wrapping equipment for automobile interior parts according to claim 1, characterized in that: The inner skeleton (12) adopts a hollow structure, and the surface of the inner skeleton (12) is provided with densely distributed barbed micro-grooves.

Images