Die for interior trimming panel of automobile tail door

By introducing a cooling system and a lifting mechanism into the mold for the automotive tailgate interior panel, the problem of component breakage during demolding was solved, achieving uniform demolding and a high yield rate.

CN223777675UActive Publication Date: 2026-01-09FOSHAN HANCHUN AUTO PARTS CO LTD
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Patent Information

Application Number
CN202423292398.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-09
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing automotive tailgate interior panel molds are difficult to demold during the demolding process, especially the middle components, which can easily lead to damage to the interior panels.

Method used

A mold including a base plate, a lower mold platform, a molding cavity, a lifting mechanism, and a cooling system is designed. The cooling system accelerates the cooling of the molding liquid, and the first and second lifting components of the lifting mechanism lift the interior panel from the front and rear sides respectively to achieve uniform demolding.

Benefits of technology

This method enables uniform demolding of the car tailgate interior panel, avoids component damage, and improves the molding qualification rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile tail door interior trimming panel die, which belongs to the technical field of dies, and comprises a bottom plate, a lower die table, a forming cavity, an upper die table matched with the lower die table, a forming component and a jacking mechanism, the lower die table is fixedly installed on the bottom plate. A forming cavity is formed in the upper side of the lower die table. A forming assembly is arranged in the middle of the forming cavity. A jacking mechanism is mounted on the lower die table; the jacking mechanism comprises a first jacking assembly and a second jacking assembly, the first jacking assembly used for jacking the front side of the forming cavity is installed on the lower die table, and the second jacking assembly used for jacking the rear side of the forming cavity is installed on the lower die table. By means of the mode, the automobile tail door interior trimming panel is separated from the forming assembly, and even demolding is achieved; the situation that in the demolding process, due to the fact that the automobile tail door interior trim panel is uneven in stress, part of components formed through the forming assembly are damaged is avoided; therefore, the forming qualification rate of the automobile tail door interior trimming panel is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, concretely relates to automobile tail door interior board mould. BACKGROUND

[0002] The current automobile tail door interior board is formed mainly through mould injection molding, the injection liquid for forming is poured into the injection mold, the injection liquid is cooled and formed, and then the automobile tail door interior board after forming is taken out.

[0003] For example, Chinese patent CN220113937U discloses an automobile tail door interior board injection mold, which is provided with a fixed mold plate, a movable mold cavity plate, a top plate and a plurality of inclined ejector blocks.

[0004] However, the middle part of the automobile tail door interior board is often provided with various components (such as conforming components and mounting components), which are difficult to demold, and uneven demolding can easily cause damage to the automobile tail door interior board.

[0005] Therefore, the utility model designs an automobile tail door interior board mold to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] In view of the above shortcomings of the prior art, the utility model provides an automobile tail door interior board mold.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme:

[0008] The automobile tail door interior board mold comprises a bottom plate, a lower mold table, a forming cavity and an upper mold table matched with the lower mold table, and further comprises a forming assembly and a jacking mechanism.

[0009] The lower mold table is fixedly installed on the bottom plate, and the lower mold table is provided with a forming cavity for forming the automobile tail door interior board on the upper side; the middle part of the forming cavity is provided with a forming assembly; the jacking mechanism is installed on the lower mold table.

[0010] The jacking mechanism comprises a first jacking assembly and a second jacking assembly, the first jacking assembly is installed on the lower mold table for jacking the front side of the forming cavity, and the second jacking assembly is installed on the lower mold table for jacking the rear side of the forming cavity.

[0011] Further, the first jacking assembly is provided with two groups, and the two groups of first jacking assemblies are symmetrically distributed on the lower mold table; the second jacking assembly is provided with two groups, and the two groups of second jacking assemblies are symmetrically distributed on the lower mold table.

[0012] Furthermore, multiple cooling valves are fixedly installed on the side of the lower mold platform. The cooling valves are connected to an external cooling pump through hoses. Cooling pipes are installed inside the lower mold platform, and the cooling valves are connected to the cooling pipes inside the lower mold platform.

[0013] Furthermore, the molding component includes a bump molding groove, a groove molding block, a toothed plate molding block, and a molding edge groove. Multiple bump molding grooves are symmetrically opened in the middle of the molding cavity, multiple groove molding blocks are symmetrically fixedly installed in the middle of the molding cavity, multiple toothed plate molding blocks are symmetrically fixedly installed in the middle of the molding cavity, and molding edge grooves are symmetrically opened on the sides of the molding cavity.

[0014] Furthermore, the first lifting assembly includes a first lifting cylinder, a first connecting plate, and a lifting block. The first lifting cylinder is fixedly installed on the lower mold platform, and the first connecting plate slides within the lower mold platform. The output end of the first lifting cylinder is fixedly connected to the first connecting plate. A lifting block is fixedly installed on the first connecting plate, and the lifting block slides within the lower mold platform.

[0015] Furthermore, the lifting blocks are provided in multiple sets, and the multiple sets of lifting blocks are evenly distributed at equal intervals on the front side of the molding cavity.

[0016] Furthermore, the second lifting assembly includes a second lifting cylinder, a second connecting plate, and a lifting plate. The second lifting cylinder is fixedly installed on the lower mold platform, and the second connecting plate slides within the lower mold platform. The output end of the second lifting cylinder is fixedly connected to the second connecting plate. The lifting plate is fixedly installed on the second connecting plate. The lifting plate slides within the lower mold platform.

[0017] Furthermore, the lifting plate is located on the rear side of the forming cavity.

[0018] Compared with the prior art, the advantages of this invention are as follows: The injection molding liquid for molding the automotive tailgate interior panel is injected into the molding cavity, and then an external cooling pump is activated. The cooling pump delivers coolant to the lower mold platen through hoses and cooling valves, thereby accelerating the cooling of the molding liquid in the molding cavity and forming the main body of the automotive tailgate interior panel. The molding assembly forms the central component of the automotive tailgate interior panel. After molding is completed, the first and second lifting assemblies are activated. The first lifting assembly lifts the front side of the automotive tailgate interior panel, and the second lifting assembly lifts the rear side of the automotive tailgate interior panel, thereby detaching the automotive tailgate interior panel from the molding assembly and achieving uniform demolding. This avoids uneven stress on the automotive tailgate interior panel during demolding, which could lead to damage to some components formed by the molding assembly, thus ensuring the high yield rate of the automotive tailgate interior panel molding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 The three-dimensional mold of the automotive tailgate interior panel of this utility model Figure One ;

[0021] Figure 2 This is a top view of the automotive tailgate interior panel mold of this utility model;

[0022] Figure 3 The three-dimensional mold of the automotive tailgate interior panel of this utility model Figure Two ;

[0023] Figure 4 The three-dimensional mold of the automotive tailgate interior panel of this utility model Figure Three .

[0024] The labels in the diagram represent:

[0025] 11. Base plate; 12. Lower mold table; 2. Molding cavity; 3. Molding assembly; 31. Protrusion molding groove; 32. Groove molding block; 33. Toothed plate molding block; 34. Molding side groove; 4. Lifting mechanism; 41. First lifting assembly; 411. First lifting cylinder; 412. First connecting plate; 413. Lifting block; 42. Second lifting assembly; 421. Second lifting cylinder; 422. Second connecting plate; 423. Lifting plate; 5. Cooling valve. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The terms "left," "right," "front," "back," "up," and "down" used in the following description are oriented from the perspective of a top-down view.

[0028] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-2The automotive tailgate interior panel mold includes a base plate 11, a lower mold platform 12, a molding cavity 2, and an upper mold platform that cooperates with the lower mold platform 12; it also includes a molding component 3 and a lifting mechanism 4.

[0029] The lower mold platform 12 is fixedly installed on the base plate 11. A molding cavity 2 for molding the interior panel of the car tailgate is provided on the upper side of the lower mold platform 12. A molding component 3 is provided in the middle of the molding cavity 2. A lifting mechanism 4 is installed on the lower mold platform 12.

[0030] The lifting mechanism 4 includes a first lifting component 41 and a second lifting component 42. The lower mold platform 12 is equipped with a first lifting component 41 for lifting the front side of the molding cavity 2, and the lower mold platform 12 is equipped with a second lifting component 42 for lifting the rear side of the molding cavity 2.

[0031] Two sets of first lifting components 41 are provided, and the two sets of first lifting components 41 are symmetrically distributed on the lower mold table 12; two sets of second lifting components 42 are provided, and the two sets of second lifting components 42 are symmetrically distributed on the lower mold table 12.

[0032] Multiple cooling valves 5 are fixedly installed on the side of the lower mold platform 12. The cooling valves 5 are connected to an external cooling pump through hoses. Cooling pipes are installed inside the lower mold platform 12, and the cooling valves 5 are connected to the cooling pipes inside the lower mold platform 12.

[0033] In this embodiment, when the automotive tailgate interior panel mold is working normally, the injection liquid for molding the automotive tailgate interior panel is injected into the molding cavity 2. Then, the external cooling pump is started, and the cooling pump delivers the coolant to the lower mold stage 12 through the hose and cooling valve 5, thereby accelerating the cooling of the molding liquid in the molding cavity 2, and the main body of the automotive tailgate interior panel is formed. The middle component of the automotive tailgate interior panel is formed by the molding assembly 3. After the molding is completed, the first lifting assembly 41 and the second lifting assembly 42 are started. The first lifting assembly 41 lifts the front side of the automotive tailgate interior panel, and the second lifting assembly 42 lifts the rear side of the automotive tailgate interior panel, thereby detaching the automotive tailgate interior panel from the molding assembly 3 and achieving uniform demolding. This avoids uneven stress on the automotive tailgate interior panel during the demolding process, which could lead to damage to some components formed by the molding assembly 3, thus ensuring the quality of the automotive tailgate interior panel molding.

[0034] Example 2: In some embodiments, such as Figures 1-4 As shown, in a preferred embodiment of the present invention, the molding component 3 includes a protrusion molding groove 31, a groove molding block 32, a toothed plate molding block 33, and a molding side groove 34. A plurality of protrusion molding grooves 31 are symmetrically opened in the middle of the molding cavity 2. A plurality of groove molding blocks 32 are symmetrically fixedly installed in the middle of the molding cavity 2. A plurality of toothed plate molding blocks 33 are symmetrically fixedly installed in the middle of the molding cavity 2. Molding side grooves 34 are symmetrically opened on the side of the molding cavity 2.

[0035] The first lifting assembly 41 includes a first lifting cylinder 411, a first connecting plate 412, and a lifting block 413. The first lifting cylinder 411 is fixedly installed on the lower mold table 12, and the first connecting plate 412 slides within the lower mold table 12. The output end of the first lifting cylinder 411 is fixedly connected to the first connecting plate 412. The lifting block 413 is fixedly installed on the first connecting plate 412, and the lifting block 413 slides within the lower mold table 12.

[0036] Multiple sets of lifting blocks 413 are provided, and the multiple sets of lifting blocks 413 are evenly distributed at equal intervals on the front side of the molding cavity 2.

[0037] The second lifting assembly 42 includes a second lifting cylinder 421, a second connecting plate 422, and a lifting plate 423. The second lifting cylinder 421 is fixedly installed on the lower mold table 12, and the second connecting plate 422 slides within the lower mold table 12. The output end of the second lifting cylinder 421 is fixedly connected to the second connecting plate 422. The lifting plate 423 is fixedly installed on the second connecting plate 422. The lifting plate 423 slides within the lower mold table 12.

[0038] The lifting plate 423 is located on the rear side of the forming cavity 2.

[0039] In this embodiment, the components in the middle of the car tailgate interior panel are formed by the protrusion forming groove 31, the groove forming block 32, the toothed plate forming block 33, and the forming edge groove 34. After forming, the first lifting cylinder 411 and the second lifting cylinder 421 are activated. The first lifting cylinder 411 drives the lifting block 413 to move vertically through the first connecting plate 412, thereby lifting the front side of the car tailgate interior panel. The second lifting cylinder 421 drives the lifting plate 422 through the second connecting plate 422. 23. The vertical movement of the lifting plate 423 lifts the rear side of the car tailgate interior panel, thereby separating the car tailgate interior panel from the protrusion forming groove 31, groove forming block 32, toothed plate forming block 33 and forming edge groove 34 in the forming cavity 2, achieving uniform demolding; avoiding uneven force on the car tailgate interior panel during demolding, which could cause some of the components formed by the protrusion forming groove 31, groove forming block 32, toothed plate forming block 33 and forming edge groove 34 to break; thus ensuring the quality of the car tailgate interior panel molding.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mold for an automotive tailgate interior panel, comprising a base plate (11), a lower mold platform (12), a molding cavity (2), and an upper mold platform that cooperates with the lower mold platform (12), characterized in that, It also includes a molding component (3) and a lifting mechanism (4); The lower mold platform (12) is fixedly installed on the base plate (11). A molding cavity (2) for molding the interior panel of the car tailgate is provided on the upper side of the lower mold platform (12). A molding component (3) is provided in the middle of the molding cavity (2). A lifting mechanism (4) is installed on the lower mold platform (12). The lifting mechanism (4) includes a first lifting component (41) and a second lifting component (42). The lower mold platen (12) is equipped with a first lifting component (41) for lifting the front side of the molding cavity (2), and the lower mold platen (12) is equipped with a second lifting component (42) for lifting the rear side of the molding cavity (2).

2. The automotive tailgate interior panel mold according to claim 1, characterized in that, The first lifting component (41) is provided in two sets, and the two sets of the first lifting component (41) are symmetrically distributed on the lower mold table (12); the second lifting component (42) is provided in two sets, and the two sets of the second lifting component (42) are symmetrically distributed on the lower mold table (12).

3. The automotive tailgate interior panel mold according to claim 1, characterized in that, Multiple cooling valves (5) are fixedly installed on the side of the lower mold platform (12). The cooling valves (5) are connected to an external cooling pump through hoses. Cooling pipes are installed inside the lower mold platform (12). The cooling valves (5) are connected to the cooling pipes inside the lower mold platform (12).

4. The automotive tailgate interior panel mold according to claim 1, characterized in that, The molding component (3) includes a protrusion molding groove (31), a groove molding block (32), a toothed plate molding block (33), and a molding side groove (34). Multiple protrusion molding grooves (31) are symmetrically opened in the middle of the molding cavity (2). Multiple groove molding blocks (32) are symmetrically fixedly installed in the middle of the molding cavity (2). Multiple toothed plate molding blocks (33) are symmetrically fixedly installed in the middle of the molding cavity (2). Molding side grooves (34) are symmetrically opened on the side of the molding cavity (2).

5. The automotive tailgate interior panel mold according to claim 1, characterized in that, The first lifting assembly (41) includes a first lifting cylinder (411), a first connecting plate (412), and a lifting block (413). The first lifting cylinder (411) is fixedly installed on the lower mold table (12), and the first connecting plate (412) slides within the lower mold table (12). The output end of the first lifting cylinder (411) is fixedly connected to the first connecting plate (412). The lifting block (413) is fixedly installed on the first connecting plate (412), and the lifting block (413) slides within the lower mold table (12).

6. The automotive tailgate interior panel mold according to claim 5, characterized in that, The lifting blocks (413) are provided in multiple sets, and the multiple sets of lifting blocks (413) are evenly distributed at equal intervals on the front side of the molding cavity (2).

7. The automotive tailgate interior panel mold according to claim 1, characterized in that, The second lifting assembly (42) includes a second lifting cylinder (421), a second connecting plate (422), and a lifting plate (423). The second lifting cylinder (421) is fixedly installed on the lower mold table (12), and the second connecting plate (422) slides within the lower mold table (12). The output end of the second lifting cylinder (421) is fixedly connected to the second connecting plate (422). The lifting plate (423) is fixedly installed on the second connecting plate (422). The lifting plate (423) slides within the lower mold table (12).

8. The automotive tailgate interior panel mold according to claim 7, characterized in that, The lifting plate (423) is located on the rear side of the forming cavity (2).

Citation Information

Patent Citations

  • Injection mold for interior trimming panel of automobile tail door

    CN220113937U