Long-distance composite sliding block for forming automobile instrument panel frame

By using a long-distance composite slider structure, the problem of a large number of undercuts and complex structures in automotive dashboard molds has been solved. This enables synchronous core pulling and demolding of undercuts that are far apart, improving the efficiency and quality of injection molding.

CN224255956UActive Publication Date: 2026-05-19NINGBO HENGHE PRECISION INDUSTRY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO HENGHE PRECISION INDUSTRY CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing automotive dashboard body frame molds have large cross-sectional areas and numerous undercuts during injection molding, resulting in the need for multiple injection runners and complex core-pulling structures, making it difficult to achieve simultaneous core pulling and demolding of multiple undercuts.

Method used

The long-distance composite slider structure includes a linear drive module, first and second core-pulling assemblies, and the connection of guide rods and connecting rods. It is locked by guide grooves and fasteners to achieve long-distance driving and synchronous demolding of the insert.

Benefits of technology

This technology enables simultaneous demolding of the widely spaced undercut parts on the car dashboard frame, ensuring both demolding quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a long-distance composite sliding block for forming an automobile instrument panel frame, which comprises a linear driving module far away from an injection molding cavity, and a second core-pulling assembly is arranged on the linear driving module and is used for forming an inverted buckle at the end part of one retaining rib on the automobile instrument panel frame; the insert is located in the injection molding cavity and used for forming a main body of the automobile instrument panel frame; a first core pulling assembly is arranged between the linear driving module and the insert, and the linear driving module drives the insert to be separated from the formed automobile instrument panel frame through the first core pulling assembly. A first inclined guide rod is arranged on the first core pulling assembly; a second inclined guide rod is arranged on the second core pulling assembly; the first core pulling assembly at least comprises a first guide rod connected with the insert and a plurality of connecting rods connected between the first guide rod and the linear driving module. The linear driving module has the beneficial effects that the guide rod and the connecting rod are arranged for long connection, so that the linear driving module can drive the long-distance insert.
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Description

Technical Field

[0001] This utility model relates to the technical field of injection molds, and in particular to a long-distance composite slider for molding automotive dashboard frames. Background Technology

[0002] The instrument panel frame is the structural component of the car dashboard. Made of plastic, it is typically injection molded in one piece. However, existing instrument panel frame molds require multiple injection runners during injection molding due to the large cross-sectional area of ​​the frame. When designing core-pulling mechanisms with multiple undercut structures, the core-pulling structures must be positioned to avoid these runners, and multiple core-pulling points must be included to match the undercuts on the instrument panel frame.

[0003] Meanwhile, due to the large number and complex structure of the undercuts in the car dashboard, a composite slider structure is needed to simultaneously pull the cores of multiple undercuts that are far apart in distance for the forming and demolding of the undercuts. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, the present invention provides a long-distance composite slider for molding automotive dashboard frames.

[0005] The above-mentioned problems of this utility model are solved by the following technical solution:

[0006] A long-distance composite slider for molding automotive dashboard frames.

[0007] Includes a linear drive module located away from the injection cavity, wherein the linear drive module is provided with a second core-pulling assembly for undercutting the end of one of the baffle ribs on the automotive dashboard frame;

[0008] Inserts, located inside the injection cavity, are used to mold the main body of the automotive dashboard frame;

[0009] A first core-pulling assembly is provided between the linear drive module and the insert. The linear drive module drives the insert to detach from the pre-formed car dashboard frame through the first core-pulling assembly.

[0010] The first core-pulling assembly is provided with a first inclined guide rod;

[0011] The second core-pulling assembly is provided with a second inclined guide rod;

[0012] The first core-pulling assembly includes at least a first guide rod connected to the insert, and a plurality of connecting rods connecting the first guide rod and the linear drive module.

[0013] A further provision of the above technical solution is that the first guide rod and the connecting rod, as well as the adjacent connecting rods, are connected to each other by an L-shaped hook to form a complete connection part.

[0014] A further provision of the above technical solution is that: the first guide rod and the connecting rod or the adjacent connecting rod are respectively provided with centrally symmetrical L-shaped hooks, and the connecting parts of the same group are provided with coaxial guide grooves and fixing grooves, and respectively provided with guide rods and fasteners to lock the connecting parts.

[0015] A further provision of the above technical solution is that: the other end of the first guide rod is provided with a first slider, and the first guide rod and the first slider are connected by an inclined guide rail structure;

[0016] The mold core is provided with a slider groove that can accommodate the sliding of the first slider.

[0017] A further provision of the above technical solution is that the first inclined guide rod passes through the insert and its end is movably mounted on the first slider.

[0018] A further provision of the above technical solution is that: the first slider is provided with a first movable groove along the Y-axis, and the first inclined guide rod is movably and limitably disposed in the first movable groove;

[0019] The insert is provided with a guide rod groove that can accommodate the first inclined guide rod through it.

[0020] A further provision of the above technical solution is that the second core-pulling assembly includes a second guide rod and a second slider, wherein the head of the second guide rod is formed with an inclined guide portion;

[0021] The second slider is provided with a second groove that is consistent with the guide portion. The guide portion extends into the second groove to drive the second slider in an inclined direction.

[0022] A further provision of the above technical solution is that the second slider is provided with a second movable groove, and the end of the second inclined guide rod is limited to move within the second movable groove.

[0023] A further configuration of the above technical solution is as follows: the linear drive module includes a drive component and a large slider disposed on the output rod of the drive component, and the first core-pulling assembly and the second core-pulling assembly are disposed side by side on the large slider.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] 1. By setting up the connection between the guide rod and the connecting rod, and setting up a special connection method, the insert and the linear drive module are connected in a long way, which can realize the linear drive module to drive the insert at a long distance. This solves the problem that when the existing automotive instrument panel body skeleton mold is injection molded, due to the large cross-sectional area of ​​the skeleton, multiple injection channels need to be set up, and there are many undercuts, complex structures, and long distances between adjacent undercuts.

[0026] 2. The drive component of the linear drive module drives the large slider. The first core-pulling assembly and the second core-pulling assembly are arranged side by side on the large slider, which can ensure the synchronous demolding of two undercut positions that are far apart on the car dashboard frame, thus ensuring the demolding quality. Attached Figure Description

[0027] Figure 1 This is a schematic diagram showing the position of this utility model on the car dashboard frame.

[0028] Figure 2 This is a schematic diagram of the structure of this utility model.

[0029] Figure 3 This is a schematic diagram of the connection structure between the first guide rod and the connecting rod.

[0030] Figure 4 This is a schematic diagram of the first core-pulling assembly.

[0031] Figure 5 This is an exploded structural diagram of the mold core and the first slider.

[0032] Figure 6 This is a cross-sectional structural diagram of the second core-pulling assembly.

[0033] The attached diagram is labeled: 100, linear drive module; 110, drive component; 120, large slider;

[0034] 200, First core-pulling assembly; 210, First guide rod; 220, Connecting rod; 201, L-shaped hook; 211, slanted guide groove; 230, First slider; 231, Guide rail; 232, Positioning groove; 233, First movable groove;

[0035] 300, Second core-pulling assembly; 310, Second guide rod; 320, Second slider; 321, Slider groove; 330, Slider core; 311, Guide part;

[0036] 400. Inlays;

[0037] 500, mold core; 510, limiting side; 501, groove;

[0038] 1. Car dashboard frame; 1.1. Rib; 2. First inclined guide rod; 3. Second inclined guide rod; 4. Guide rod; 5. Fastener; 6. Locating pin. Detailed Implementation

[0039] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0040] Specific reference Figure 1-6 As shown, this embodiment discloses a long-distance composite slider for molding an automotive dashboard frame.

[0041] A long-distance composite slider for molding automotive dashboard frames.

[0042] Includes a linear drive module 100 located away from the injection cavity, wherein the linear drive module 100 is provided with a second core-pulling assembly 300 for undercutting the end of one of the baffle 1.1 on the automotive dashboard frame 1;

[0043] Insert 400, located inside the injection cavity, is used to mold the main body of the automotive dashboard frame 1;

[0044] A first core-pulling assembly 200 is provided between the linear drive module 100 and the insert 400. The linear drive module 100 drives the insert 400 to detach from the pre-formed car dashboard frame 1 through the first core-pulling assembly 200.

[0045] The first core-pulling assembly 200 is provided with a first inclined guide rod 2;

[0046] The second core-pulling assembly 300 is provided with a second inclined guide rod 3;

[0047] The first core-pulling assembly 200 includes at least a first guide rod 210 connected to the insert 400, and a plurality of connecting rods 220 connecting the first guide rod 210 and the linear drive module 100.

[0048] The above is the basic scheme of this embodiment.

[0049] Specific reference Figure 1 As shown in the figure, only the injection molding structure of one side of the car dashboard frame 1 is described. In the car dashboard frame, in addition to the horizontal main frame, multiple baffles 1.1 are provided extending from the main frame to one side. The ends of the baffles 1.1 need to be formed by individual undercuts; at the same time, there are also multiple undercuts on the main frame that need to be formed.

[0050] In this embodiment, the end of the first core-pulling assembly 200 extends into the injection cavity and connects with the insert 400 to drive the insert 400; the second core-pulling assembly 300 forms the undercut at the end of the baffle 1.1; the first core-pulling assembly 200 and the second core-pulling assembly are respectively provided with a first inclined guide rod 2 and a second inclined guide rod 3 to demold the undercut part.

[0051] Reference Figure 2 As shown, since the distance between the main frame of the car dashboard frame 1 and the end of the baffle 1.1 is relatively long, in order to drive the first core-pulling assembly 200 and the second core-pulling assembly 300 synchronously, in this embodiment, the first core-pulling assembly 200 includes a first guide rod 210 and several connecting rods 220 to connect the insert 400 and the linear drive module 100 for a long distance, thereby enabling the linear drive module 100 to drive the insert 400 at a distance.

[0052] Preferably, multiple connecting rods 220 can be provided in this embodiment as needed.

[0053] Specifically, the first guide rod 210 and the connecting rod 220, as well as adjacent connecting rods 220, are connected to each other by L-shaped hooks 201 to form a complete connection part.

[0054] To ensure the driving effect, a stable connection needs to be formed between the first guide rod 210 and the multiple connecting rods 220. In this embodiment, a hook connection is made between two adjacent rods, and the force direction of the hook is consistent with the driving direction of the linear drive module 100.

[0055] Preferably, in this embodiment, the first guide rod 210 and the connecting rod 220 or adjacent connecting rods 220 are respectively provided with centrally symmetrical L-shaped hooks 201, and the connecting parts of the same group are provided with coaxial guide grooves and fixing grooves, and are respectively provided with guide rods 4 and fasteners 5 to lock the connecting parts.

[0056] Specific reference Figure 3 As shown, the hook grooves of the two L-shaped hooks 201 face upward and downward respectively, so that when the hook blocks of the adjacent hooks are inserted, force can be applied in the horizontal direction. In addition, in this embodiment, the locking direction of the guide rod 4 and the locking direction of the fastener 5 are perpendicular to the moving direction of the connecting rod 220, which further ensures the connection tightness of the connection part.

[0057] In this embodiment, the other end of the first guide rod 210 is provided with a first slider 230, and the first guide rod 210 and the first slider 230 are connected by a inclined guide rail 231 structure.

[0058] The mold core 500 is provided with a slider groove 321 that can accommodate the sliding of the first slider 230.

[0059] Specifically, refer to Figure 4 As shown, the inclined guide rail 231 is a inclined guide groove 211 set at the end of the first guide rod 210. The guide rail 231 is already set on the first slider 230. The guide rail 231 is inserted into the first inclined guide groove 211 and slides along the first inclined guide groove 211, so that the first slider 230 slides in the inclined direction, thereby driving the insert 400 to slide in the inclined direction as well.

[0060] To ensure the sliding direction of the first slider 230, in this embodiment, an inclined groove 501 is provided on the mold core 500, and the lower end of the groove is open along the inclined direction. At the same time, the side of the groove 501 is closed by the limiting side 510, so that the groove 501 forms an inclined slider groove 321 with the lower end open.

[0061] Specific reference Figure 5 As shown, a positioning pin 6 is provided on the side of the slider groove 321, and at least two positioning grooves 232 are provided on the slider along the moving direction. The positioning pin 6 slides between the two positioning grooves 232, thereby limiting the sliding range of the first slider 230.

[0062] In this embodiment, the first inclined guide rod 2 is used to form the undercut on the main frame. Therefore, the first inclined guide rod 2 is disposed through the insert 400 and its end is movably disposed on the first slider 230.

[0063] Furthermore, during the sliding of the first slider 230 along the inclined direction, displacement occurs in both the first and second perpendicular directions. In this embodiment, the first direction is the X-axis direction of the transmission of the linear drive module 100, and the second direction is the vertical Z-axis direction. Since the first inclined guide rod 2 is inclined relative to both the X-axis and the Z-axis, during the movement of the first inclined guide rod 2 along its own axis, it also has a small range of movement relative to the first slider 230 on the Y-axis, which is perpendicular to both the X-axis and the Z-axis. Therefore, in this embodiment, the first slider 230 is provided with a first movable groove 233 along the Y-axis, and the first inclined guide rod 2 is limited to the movable position within the first movable groove 233.

[0064] The insert 400 is provided with a guide rod groove that can accommodate the first inclined guide rod 2 through it.

[0065] Preferably, in this embodiment, the first movable groove 233 is a T-shaped groove with a limiting edge at the open end.

[0066] In this embodiment, the specific implementation of the second core-pulling assembly 300 is as follows: the second core-pulling assembly 300 includes a second guide rod 310 and a second slider 320, and the head of the second guide rod 310 is formed with an inclined guide portion 311;

[0067] The second slider 320 is provided with a second groove that is consistent with the guide part 311. The guide part 311 extends into the second groove to drive the second slider 320 in an inclined direction.

[0068] Specific reference Figure 6 As shown, in this embodiment, the second slider 320 and the linear drive module 100 are connected by a short distance. The tail of the second guide rod 310 is connected to the linear drive module 100, and the head extends into the second slider 320 and slides at an angle through the guide part 311.

[0069] The second slider 320 is provided with a second movable groove, and the end of the second inclined guide rod 3 is limited to move within the second movable groove.

[0070] Specifically, in this embodiment, the second slide groove on the second slider 320 can accommodate the movement of the guide part 311, and a slider groove 321 is provided on the second slider 320 along the axial direction of the second inclined guide rod 3. A slide core 330 is slidably provided in the slider groove 321. The slide core 330 is provided with a guide groove that is consistent with the guide part 311. That is, the second movable groove is provided on the slide core.

[0071] The second inclined guide rod 3 is connected to the lower end of the sliding core 330.

[0072] The linear drive module 100 drives the second slider 320 to slide along the X-axis via the second guide rod 310. The guide part 311 slides inside the second slider 320, driving the slide core 330 to slide along the slider groove 321, thereby causing the second inclined guide rod 3 to generate a displacement perpendicular to the guide part 311 and disengage from the buckle.

[0073] In this embodiment, the arrangement of the second inclined guide rod 3 on the slide core 330 is the same as the arrangement of the first inclined guide rod 2 on the first slider 230, and will not be described in detail here.

[0074] Furthermore, in order to accommodate the two different inverted positions on the main frame and the baffle 1.1 on the car dashboard frame 1, in this embodiment, the linear drive module 100 includes a drive component 110 and a large slider 120 disposed on the output rod of the drive component 110, and the first core-pulling assembly 200 and the second core-pulling assembly 300 are disposed side by side on the large slider 120.

[0075] With this configuration, the drive component 110 linearly drives the large slider 120, and the first core-pulling assembly 200 and the second core-pulling assembly 300 on the large slider 120 are simultaneously driven to demold, thereby ensuring the synchronous demolding of the two undercut positions that are far apart on the car dashboard frame 1 and ensuring the demolding quality.

[0076] Preferably, in this embodiment, the driving component 110 is a drive motor.

[0077] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A long-distance composite slider for molding an automotive dashboard frame, characterized in that: Includes a linear drive module (100) located away from the injection cavity, wherein the linear drive module (100) is provided with a second core-pulling assembly (300) for undercutting the end of one of the baffles (1.1) on the automotive dashboard frame (1); Insert (400), located in the injection cavity, is used to form the main body of the automotive dashboard frame (1); A first core-pulling assembly (200) is provided between the linear drive module (100) and the insert (400). The linear drive module (100) drives the insert (400) to detach from the pre-formed car dashboard frame (1) through the first core-pulling assembly (200). The first core-pulling assembly (200) is provided with a first inclined guide rod (2); The second core-pulling assembly (300) is provided with a second inclined guide rod (3); The first core-pulling assembly (200) includes at least a first guide rod (210) connected to the insert (400), and a plurality of connecting rods (220) connecting the first guide rod (210) and the linear drive module (100).

2. The long-distance composite slider for molding an automotive dashboard frame according to claim 1, characterized in that: The first guide rod (210) and the connecting rod (220), as well as the adjacent connecting rods (220), are connected to each other by L-shaped hooks (201) to form a complete connection part.

3. The long-distance composite slider for molding an automotive dashboard frame according to claim 2, characterized in that: The first guide rod (210) and the connecting rod (220) or the adjacent connecting rod (220) are respectively provided with centrally symmetrical L-shaped hooks (201), and the connecting parts of the same group are provided with coaxial guide grooves and fixing grooves, and are respectively provided with guide rods (4) and fasteners (5) to lock the connecting parts.

4. The long-distance composite slider for molding an automotive dashboard frame according to claim 1, characterized in that: The other end of the first guide rod (210) is provided with a first slider (230), and the first guide rod (210) and the first slider (230) are connected by an inclined guide rail (231) structure; The mold core (500) is provided with a slider groove (321) that can accommodate the sliding of the first slider (230).

5. The long-distance composite slider for molding an automotive dashboard frame according to claim 4, characterized in that: The first inclined guide rod (2) is disposed through the insert (400) and its end is movably disposed on the first slider (230).

6. The long-distance composite slider for molding an automotive dashboard frame according to claim 5, characterized in that: The first slider (230) is provided with a first movable groove (233) along the Y-axis, and the first inclined guide rod (2) is limited and movable in the first movable groove (233); The insert (400) is provided with a guide rod groove that can accommodate the first inclined guide rod (2) through which it passes.

7. The long-distance composite slider for molding an automotive dashboard frame according to claim 1, characterized in that: The second core-pulling assembly (300) includes a second guide rod (310) and a second slider (320), wherein the head of the second guide rod (310) is formed with an inclined guide portion (311); The second slider (320) is provided with a second groove that is consistent with the guide part (311). The guide part (311) extends into the second groove to drive the second slider (320) in an inclined direction.

8. The long-distance composite slider for molding an automotive dashboard frame according to claim 7, characterized in that: The second slider (320) is provided with a second movable groove, and the end of the second inclined guide rod (3) is limited to move within the second movable groove.

9. The long-distance composite slider for molding an automotive dashboard frame according to claim 1, characterized in that: The linear drive module (100) includes a drive component (110) and a large slider (120) disposed on the output rod of the drive component (110). The first core-pulling assembly (200) and the second core-pulling assembly (300) are arranged side by side on the large slider (120).