Thermoforming mold for an automotive interior cover

By introducing an isolation component into the mold assembly and using a rack and pinion meshing mechanism to lift the guard plate, the safety isolation problem of the heating element is solved, ensuring the safety of the hot pressing process.

CN224527989UActive Publication Date: 2026-07-21CHANGZHOU XINTONG SHENLONG AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU XINTONG SHENLONG AUTO PARTS CO LTD
Filing Date
2025-09-01
Publication Date
2026-07-21

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Abstract

The utility model discloses the hot press forming die of car interior trim cover plate belongs to forming die technical field. Mainly including workstation, be provided with mould assembly on the workstation, and mould assembly has mounting panel and base, be provided with at least two groups of isolated components on mould assembly, and isolated component includes first rack, and the one side of base is provided with two groups of vertical board, and one group of vertical board is rotatably installed with the rotating lever, and the both ends of rotating lever are fixed with first gear and second gear respectively, and two groups of slide rails are installed on the vertical board, and the slide block is installed on the slide rail, and the baffle is installed on the slide block, and the one side of baffle is installed with the connecting block, and the second rack is installed on the connecting block. The hot press forming die of car interior trim cover plate of the application, through the setting of isolated component, makes the hot pressure, and the baffle is lifted synchronously, to isolate the four around of mould assembly and staff, reached the effect that keeps the safe distance with heating element.
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Description

Technical Field

[0001] This utility model relates to the field of molding die technology, specifically to a hot pressing molding die for automotive interior cover panels. Background Technology

[0002] Automotive interior panels are an important component of the vehicle's interior space, encompassing key components such as the dashboard, door panels, seat trim, and center console. Their design, materials, and manufacturing processes directly affect the comfort of passengers and the overall quality of the vehicle. In the manufacturing process of interior panels, a hot-pressing mold is typically used to heat-press sound insulation cotton and interior panel covers. For example, patent CN220681585U discloses an aviation interior panel press, in which the sheet material to be pressed is placed on top of a heating element, and a hydraulic cylinder is activated to move a second heating element downwards until it closes with the first heating element, thus hot-pressing the sheet material. However, while the aforementioned patent can achieve the hot-pressing operation, it lacks a component to isolate the heating element from the operator during hot pressing, potentially leading to accidental contact with the heating element and the risk of burns or crushing injuries from the mold. Therefore, it is necessary to provide a hot-pressing mold for automotive interior panel covers to address these issues. It should be noted that the information disclosed in this background section is only for understanding the background technology of this application and therefore may contain information that does not constitute prior art. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a hot pressing mold for automotive interior cover panels, which achieves the effect of maintaining a safe distance from the heating element.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a hot-press forming mold for automotive interior trim panels, including a worktable; a mold assembly, which is set on the worktable and has a mounting plate and a base suitable for installation; at least two sets of isolation components, which are set on the mold assembly, and the isolation components include: a first rack, which is mounted on the mounting plate; two sets of vertical plates, which are mounted on one side of the base, one set of vertical plates having a rotating rod rotatably mounted on it, with a first gear and a second gear respectively fixedly sleeved at both ends of the rotating rod; two sets of slide rails, which are mounted on the vertical plates and have sliders mounted on them; and a protective plate, which is mounted on the sliders, with a connecting block mounted on one side of the protective plate and a second rack mounted on the connecting block.

[0005] Furthermore, the first rack and the first gear are meshed together, and the second rack and the second gear are meshed together.

[0006] Furthermore, the first gear and the second gear are located on both sides of one of the sets of vertical plates.

[0007] Furthermore, two sets of straight rods are slidably installed at the bottom of the guard plate, and a base is installed at the bottom of the straight rods.

[0008] Furthermore, a spring is installed between the base and the guard plate, and the spring is sleeved on the outside of the straight rod.

[0009] Furthermore, at least two sets of support columns are installed on the top of the base, and a fixing plate is installed on the top of the at least two sets of support columns. A hydraulic cylinder is provided on the fixing plate, and a lower mold is detachably installed on the base.

[0010] Furthermore, the output end of the hydraulic cylinder is connected to the mounting plate, which is slidably mounted on the support column, and the bottom of the mounting plate is detachably fitted with the upper mold.

[0011] Furthermore, the upper mold is located above the lower mold, and both the upper and lower molds are equipped with circulation pipes.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects: by setting the isolation component, the guard plate is raised synchronously during hot pressing to isolate the mold component from the workers, thus achieving the effect of maintaining a safe distance from the heating element. Attached Figure Description

[0013] Figure 1 This is an overall schematic diagram of the hot pressing mold for the automotive interior trim cover in this application;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0016] Figure 4 for Figure 1 A cross-sectional view from another perspective;

[0017] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0018] The following are the labeling elements in the figure:

[0019] 1. Workbench;

[0020] 2. Isolation assembly; 21. Protective plate; 22. First rack; 23. Vertical plate; 24. First gear; 25. Rotating rod; 26. Base; 27. Straight rod; 28. Spring; 29. ​​Slide rail; 291. Slider; 210. Connecting block; 211. Second rack; 212. Second gear;

[0021] 3. Mold assembly; 31. Support column; 32. Base; 33. Mounting plate; 34. Fixing plate; 341. Hydraulic cylinder; 35. Upper mold; 36. Lower mold; 37. Circulation pipe. Detailed Implementation

[0022] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] like Figure 1 As shown, this application provides a thermoforming mold for automotive interior trim panels, including a worktable 1 placed on a flat surface. A mold assembly 3 is mounted on the worktable 1, which is suitable for thermoforming the interior trim panel. Specifically:

[0024] The mold assembly 3 includes a base 32 fixedly installed on the top of the workbench 1. A lower mold 36 is detachably installed on the base 32 to facilitate the placement of interior cover panels and sound insulation cotton to be processed. Multiple sets of support columns 31 are fixedly installed on the top of the base 32. A fixing plate 34 is fixedly installed on the top of the multiple sets of support columns 31. A hydraulic cylinder 341 is provided on the fixing plate 34.

[0025] An mounting plate 33 is fixedly installed at the output end of the hydraulic cylinder 341. The mounting plate 33 is slidably mounted on the support column 31, and an upper mold 35 is detachably installed at the bottom of the mounting plate 33. The upper mold 35 is located above the lower mold 36.

[0026] Then, driven by the hydraulic cylinder 341, the mounting plate 33 slides downward in the vertical direction, and simultaneously drives the upper mold 35 to move, so that it can perform mold closing operation with the lower mold.

[0027] Both the upper mold 35 and the lower mold 36 are equipped with circulation pipes 37. The two ends of the circulation pipes 37 can be connected to external heating equipment. Under the drive of the heating equipment, heating medium is circulated into the circulation pipes 37 to heat the upper mold 35 and the lower mold 36. Thus, when the molds are closed, the interior cover and sound insulation cotton to be processed are hot-pressed and formed.

[0028] Isolation components 2 are provided on all four sides of the base 32, which are suitable for separating the workers from the mold assembly 3;

[0029] like Figures 1-5 As shown, the isolation assembly 2 includes two sets of vertical plates 23 fixedly installed on one side of the base 32. A rotating rod 25 is rotatably installed on one set of vertical plates 23. A first gear 24 is fixedly sleeved on one end of the rotating rod 25. The first gear 24 is located on one side of the vertical plate 23, and a first rack 22 is fixedly installed on the mounting plate 33. The first rack 22 and the first gear 24 are meshed together.

[0030] In the initial state, the first rack 22 is located above the first gear 24 and is separated from the first gear 24. When the mounting plate 33 moves downward, it synchronously drives the first rack 22 to move downward and mesh with the first gear 24, thereby driving the first gear 24 to rotate, which in turn drives the rotating rod 25 to rotate.

[0031] A second gear 212 is fixedly sleeved at the other end of the rotating rod 25. The second gear 212 is located on the other side of the vertical plate 23. A slide rail 29 is fixedly installed on both sets of vertical plates 23. A slider 291 is slidably arranged on the slide rail 29. A guard plate 21 is fixedly installed on both sets of sliders 291. A connecting block 210 is fixedly installed on the side of the guard plate 21 near the slide rail 29. A second rack 211 is fixedly installed on the connecting block 210. The second rack 211 meshes with the second gear 212.

[0032] In the initial state, the upper end of the second rack 211 is meshed with the second gear 212. When the first rack 22 drives the rotating rod 25 to rotate through the first gear 24, it simultaneously drives the second rack 211 to move upward through the second gear 212, thereby driving the slide plate to move upward on the slide rail 29. This enables the base 32 to be shielded when the upper mold 35 and the lower mold 36 are closed, thus isolating the workers and the mold assembly 3 and preventing workers from accidentally touching the mold assembly 3 and getting burned or crushed by the mounting plate 33. Moreover, the cooperation of the gear and rack makes the movement of the guard plate 21 and the upper mold 35 more synchronized.

[0033] Continue to refer to Figure 3 Two sets of straight rods 27 are slidably arranged at the bottom end of the guard plate 21. A base 26 is provided at the bottom of the straight rod 27. The base 26 is in contact with the ground. A spring 28 is provided between the base 26 and the bottom end of the guard plate 21. The spring 28 is sleeved on the straight rod 27 so as to avoid the guard plate 21 from making hard contact with the ground when the guard plate 21 is reset, so as to buffer the guard plate 21.

[0034] In summary, during use, the interior trim cover and sound insulation cotton to be processed are placed on the lower mold 36, the hydraulic cylinder 341 is activated, and the mounting plate 33 and the upper mold 35 are moved downwards, thereby performing a mold closing operation with the lower mold 36. At the same time, the first rack 22 moves downwards synchronously and meshes with the first gear 24 to drive the rotating rod 25 to rotate, thereby driving the second gear 212 to rotate, thereby driving the guard plate 21 to move upwards through the second rack 211 to cover the four sides of the base 32.

[0035] After the mold is closed, the base 32 is blocked by the protective plate 21 to isolate the workers. The heating equipment is started and the upper mold 35 and lower mold 36 are heated through two sets of circulation pipes 37. Then the interior cover and sound insulation cotton are hot-pressed and formed. After the processing is completed, the hydraulic cylinder 341 is reset, which drives the upper mold 35 to reset and simultaneously drives the protective plate 21 to reset. At this time, the base 26 can buffer the protective plate 21 to prevent the protective plate 21 from making hard contact with the ground.

[0036] It should be noted that sensors can also be installed on the upper end of the guard plate 21 and the mounting plate 33. These sensors can be connected to the PLC system. When there is an obstruction between the guard plate 21 and the mounting plate 33 (i.e., when part of the worker's limbs are located between the mounting plate 33 and the base 32), the sensor will be triggered, thereby preventing the PLC from controlling the hydraulic cylinder 341 to start, further improving safety.

[0037] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hot-press forming mold for automotive interior trim panels, characterized in that: include: Workbench (1); A mold assembly (3) is disposed on the worktable (1) and has a mounting plate (33) and a base (32) suitable for installation. At least two sets of isolation components (2) are disposed on the mold assembly (3), the isolation components (2) comprising: A first rack (22) is mounted on the mounting plate (33); Two sets of vertical plates (23) are installed on one side of the base (32). A rotating rod (25) is rotatably installed on one set of the vertical plates (23). A first gear (24) and a second gear (212) are respectively fixedly sleeved at both ends of the rotating rod (25). Two sets of slide rails (29) are mounted on the vertical plate (23), and sliders (291) are mounted on the slide rails (29). A guard plate (21) is mounted on the slider (291), and a connecting block (210) is mounted on one side of the guard plate (21), and a second rack (211) is mounted on the connecting block (210).

2. The hot pressing mold for automotive interior trim panels according to claim 1, characterized in that: The first rack (22) and the first gear (24) are meshed together, and the second rack (211) and the second gear (212) are meshed together.

3. The hot pressing mold for automotive interior trim panels according to claim 2, characterized in that: The first gear (24) and the second gear (212) are located on both sides of one of the sets of vertical plates (23).

4. The hot pressing mold for automotive interior trim panels according to claim 3, characterized in that: Two sets of straight rods (27) are slidably provided at the bottom end of the guard plate (21), and a base (26) is provided at the bottom of the straight rods (27).

5. The hot pressing mold for automotive interior trim panels according to claim 4, characterized in that: A spring (28) is provided between the base (26) and the guard plate (21), and the spring (28) is sleeved on the outside of the straight rod (27).

6. The hot pressing mold for automotive interior trim panels according to claim 1, characterized in that: At least two sets of support columns (31) are installed on the top of the base (32), and a fixing plate (34) is installed on the top of the at least two sets of support columns (31). A hydraulic cylinder (341) is provided on the fixing plate (34). A lower mold (36) is detachably installed on the base (32).

7. The hot pressing mold for automotive interior trim panels according to claim 6, characterized in that: The output end of the hydraulic cylinder (341) is connected to the mounting plate (33), the mounting plate (33) is slidably mounted on the support column (31), and the bottom of the mounting plate (33) is detachably mounted with an upper mold (35).

8. The hot pressing mold for automotive interior trim panels according to claim 7, characterized in that: The upper mold (35) is located above the lower mold (36), and both the upper mold (35) and the lower mold (36) are provided with circulation pipes (37).