Molding molds for automotive dashboard production

By improving the mold design and utilizing a servo motor-driven striking structure and positioning pins, the problems of low economic efficiency and unsatisfactory demolding effect of existing molds have been solved, achieving efficient and precise molding of automotive dashboards.

CN224576024UActive Publication Date: 2026-07-31CHANGZHOU FENGXINGCHENG ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU FENGXINGCHENG ENVIRONMENTAL TECH CO LTD
Filing Date
2025-08-24
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing automotive dashboard production molds require multiple dual-axis motors to strike during demolding, which is inefficient and results in unsatisfactory demolding of the lower mold plate.

Method used

A molding die was designed, comprising a support base, a placement platform, upper and lower dies, and a striking structure. A servo motor drives the main shaft, main gear, and sub-gear in linkage. The lower die is simultaneously struck on all four sides by a sliding rod, slider, and spring within a rectangular frame in conjunction with a striking ball. Combined with the positioning pin and positioning hole, the precise closure and stable movement of the upper and lower dies are ensured.

Benefits of technology

This allows for simultaneous striking of all four sides of the lower mold, improving demolding efficiency and effectiveness, reducing the hassle of manual demolding, and enhancing the precision and economy of compression molding.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a molding die for manufacturing automotive dashboards, specifically relating to the field of automotive dashboard manufacturing technology. It includes a support base, on which a placement platform is mounted. A lower mold is fixedly installed at the center of the placement platform's surface, and an upper mold is mounted on top of the lower mold. Both the lower and upper molds have cavities adapted to the structure of the automotive dashboard. A striking structure for striking the outer wall of the lower mold is provided between the support base and the placement platform. The striking structure includes a main shaft rotatably mounted between the support base and the placement platform. This utility model allows for simultaneous striking of multiple surfaces of the lower mold after the automotive dashboard has been molded and cooled, causing vibration and effectively promoting the separation of the molded automotive dashboard from the cavity. This significantly improves demolding efficiency and effectiveness, reduces the hassle and difficulty of manual demolding, and is economical.
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Description

Technical Field

[0001] This utility model relates to the field of automotive dashboard manufacturing technology, and more specifically, to a molding die for automotive dashboard manufacturing. Background Technology

[0002] The car dashboard is a device that reflects the working status of various systems in the vehicle. Common dashboard indicators include fuel indicator, washer fluid indicator, electronic throttle indicator, front and rear fog light indicators, and warning lights. In the production process, the car dashboard is generally formed by extrusion molding. Specifically, the heated and molten material is placed in the mold cavity, and after being extruded and cooled by the mold, the finished product is obtained.

[0003] A search revealed that Chinese patent CN221112679U discloses an injection mold for an automotive dashboard. This structure enables more precise positioning of the upper and lower mold plates and facilitates the removal of the molded automotive dashboard.

[0004] However, in actual use, when the dual-axis motor drives the striking component to strike the lower template, it can only strike two sides of the lower template, resulting in an unsatisfactory demolding effect. When multiple sides of the lower template need to be struck, multiple dual-axis motors are required, which is not economical. Therefore, this utility model proposes a molding die for the production of automotive dashboards. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a molding die for the production of automotive dashboards to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molding die for producing an automotive dashboard, including a support base, a placement platform on the support base, a lower die fixedly installed at the center of the surface of the placement platform, an upper die on the top of the lower die, and cavities adapted to the structure of the automotive dashboard provided inside both the lower die and the upper die.

[0007] It can be seen that the basic structure of the molding die includes a support base, a placement platform, and upper and lower molds. Both the upper and lower molds have cavities that are adapted to the structure of the car dashboard for molding the dashboard.

[0008] To facilitate demolding by simultaneously striking all four sides of the lower mold after the automotive dashboard has been molded, a striking structure for striking the outer wall of the lower mold is preferably provided between the support base and the placement platform. This striking structure includes a main shaft rotatably mounted between the support base and the placement platform, located at the center of both. A servo motor is mounted at the bottom of the main shaft, and a main gear is fixedly mounted on its exterior. Several support shafts are rotatably mounted between the support base and the placement platform, located outside the main shaft. Each support shaft has a gear fixedly mounted on its exterior. The servo motor is fixedly mounted on the support base. At the bottom, the output end of the servo motor is fixedly connected to the main shaft. The top ends of several support shafts extend to the top of the placement platform. Bearing seats are provided at the connection points between the support shafts and the placement platform, and the support shafts are rotatably connected to the placement platform through the bearing seats. Several gears mesh with the main gear. A rectangular frame is fixedly provided at the top end of the support shaft. A slide rod is slidably installed inside the rectangular frame. A striking ball is provided at one end of the slide rod. A slider is provided inside the rectangular frame and at the other end of the slide rod. A spring is provided on one side of the slider. The outer wall of the slider is slidably connected to the inner wall of the rectangular frame. The two ends of the spring are respectively connected to the slider and the inner wall of the rectangular frame.

[0009] To improve the positioning accuracy of the upper and lower mold closure and ensure the accuracy of automotive dashboard molding, preferably, the surface of the lower mold is provided with several positioning holes, and the bottom of the upper mold is fixedly installed with several positioning pins, the structures of the positioning pins and the positioning holes being compatible.

[0010] To facilitate mold opening and closing, improve the stability of upper mold movement, and avoid deviation, preferably, two guide rods are provided on the surface of the placement platform and on both sides of the lower mold. A support plate is fixedly installed on the top of several guide rods. An electric push rod is fixedly installed on the support plate, and the output end of the electric push rod is fixedly connected to the surface of the upper mold. Two guide blocks are fixedly installed on both sides of the outer wall of the upper mold, and the guide blocks are slidably connected to the outside of the guide rods.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. By setting up a striking structure, the main shaft, main gear, distribution gear and support shaft are driven by a servo motor, so that the sliding rod, slider and spring in the rectangular frame work together to drive the striking ball to strike the four sides of the lower mold at the same time. This causes the lower mold to vibrate, which effectively promotes the separation of the molded car dashboard from the cavity, greatly improves the demolding efficiency and effect, reduces the trouble and difficulty of manual demolding, and is economical.

[0013] 2. Through the matching and cooperation of the positioning pin and the positioning hole, and the sliding guidance of the guide block along the guide rod, the positioning pin and the positioning hole ensure the positioning accuracy when the upper and lower molds are closed, and the guide block and the guide rod ensure the stability of the upper mold movement. The two work together to improve the accuracy of automotive dashboard molding and reduce the product defect rate caused by mold misalignment or movement deviation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of another angle structure of this utility model.

[0016] Figure 3 This is a three-dimensional schematic diagram of the striking structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the distribution structure of the lower mold and the upper mold of this utility model.

[0018] Figure 5 This is a schematic diagram of the internal structure of the rectangular frame of this utility model.

[0019] The attached diagram is labeled as follows: 1. Support base; 2. Placement platform; 3. Lower mold; 4. Upper mold; 5. Main spindle; 6. Servo motor; 7. Main gear; 8. Support shaft; 9. Dividing gear; 10. Rectangular frame; 11. Slide rod; 12. Striking ball; 13. Slider; 14. Spring; 15. Positioning hole; 16. Positioning pin; 17. Guide rod; 18. Support plate; 19. Electric push rod; 20. Guide block; 21. Bearing seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] As attached Figure 1-5 The molding die for manufacturing an automotive dashboard shown includes a support base 1, a placement platform 2 on the support base 1, a lower mold 3 fixedly installed at the center of the surface of the placement platform 2, an upper mold 4 on the top of the lower mold 3, and cavities adapted to the structure of the automotive dashboard are provided inside both the lower mold 3 and the upper mold 4.

[0022] Specifically, in this structure, the support base 1 supports the placement platform 2, and the placement platform 2 is used to support the lower mold 3. The raw material of the car dashboard is injected into the interior of the lower mold 3. After the upper mold 4 and the lower mold 3 are closed and molded and cooled, the raw material is formed by the cavity of the lower mold 3 and the upper mold 4, thereby completing the molding operation of the car dashboard.

[0023] In this embodiment, as shown in the appendix Figure 1 , 2 As shown in Figures 3 and 5, a striking structure for striking the outer wall of the lower mold 3 is provided between the support base 1 and the placement platform 2. The striking structure includes a main shaft 5, which is rotatably mounted between the support base 1 and the placement platform 2 and located at the center of the support base 1 and the placement platform 2. A servo motor 6 is provided at the bottom end of the main shaft 5. A main gear 7 is fixedly mounted on the outside of the main shaft 5. Several support shafts 8 are rotatably mounted between the support base 1 and the placement platform 2 and located on the outside of the main shaft 5. Each of the support shafts 8 has a gear 9 fixedly mounted on its outside. The servo motor 6 is fixedly mounted on the bottom of the support base 1, and the output end of the servo motor 6 is fixedly connected to the main shaft 5. The top of each of the 8 extends to the top of the placement platform 2. Each of the several support shafts 8 is provided with a bearing seat 21 at the connection point with the placement platform 2, and is rotatably connected to the placement platform 2 through the bearing seat 21. Each of the several gears 9 meshes with the main gear 7. A rectangular frame 10 is fixedly provided at the top of the support shaft 8. A slide rod 11 is slidably installed inside the rectangular frame 10. A striking ball 12 is provided at one end of the slide rod 11. A slider 13 is provided inside the rectangular frame 10 and at the other end of the slide rod 11. A spring 14 is provided on one side of the slider 13. The outer wall of the slider 13 is slidably connected to the inner wall of the rectangular frame 10. The two ends of the spring 14 are respectively connected to the slider 13 and the inner wall of the rectangular frame 10.

[0024] Specifically, in this structure, when the raw material inside the mold 3 needs to be demolded after molding and cooling, the main shaft 5 can be driven by the servo motor 6 to rotate between the support base 1 and the placement table 2. The main shaft 5 drives the main gear 7 to rotate, and drives several meshing gears 9 to rotate in opposite directions. The several gears 9 drive the corresponding support shaft 8 to rotate between the support base 1 and the placement table 2, so that the support shaft 8 rotates with the placement table 2 through the bearing seat 21.

[0025] During the synchronous rotation of several support rods 8, the corresponding rectangular frame 10 is driven to rotate, causing the slide rod 11 to drive the slider 13 to slide inside the rectangular frame 10, and causing the spring 14 to be stretched and reset. At this time, several striking balls 12 strike the four sides of the lower mold 3 simultaneously, causing the four sides of the lower mold 3 to vibrate, thereby facilitating the demolding of the car dashboard and making it easy to remove the molded product.

[0026] By using a servo motor 6 to drive several striking balls 12, the four sides of the lower mold 3 can be struck simultaneously, thereby increasing the striking range, improving the demolding effect of the finished product, and increasing economic efficiency.

[0027] In this embodiment, as shown in the appendix Figure 1 , 2 As shown in Figure 4, the surface of the lower mold 3 is provided with several positioning holes 15, and the bottom of the upper mold 4 is fixedly installed with several positioning pins 16. The structures of the positioning pins 16 and the positioning holes 15 are compatible.

[0028] Specifically, in this structure, the cooperation of several positioning pins 16 and positioning holes 15 improves the positioning effect when the upper mold 4 and the lower mold 3 are closed, and makes the automotive dashboard more accurately molded.

[0029] In this embodiment, as shown in the appendix Figure 1 , 2 As shown in Figure 4, two guide rods 17 are provided on the surface of the placement platform 2 and on both sides of the lower mold 3. A support plate 18 is fixedly installed on the top of several guide rods 17. An electric push rod 19 is fixedly installed on the support plate 18, and the output end of the electric push rod 19 is fixedly connected to the surface of the upper mold 4. Two guide blocks 20 are fixedly installed on both sides of the outer wall of the upper mold 4. The guide blocks 20 are slidably connected to the outside of the guide rods 17.

[0030] Specifically, in this structure, the guide rod 17 and the support plate 18 are used to support the electric push rod 19. The output end of the electric push rod 19 can drive the upper mold 4 to move up and down, which facilitates the mold opening and closing molding operations. During the up and down movement of the upper mold 4, the guide block 20 can slide and guide outside the guide rod 17, which improves the stability of the movement of the upper mold 4 and avoids deviation.

[0031] Working principle of this utility model:

[0032] This application provides a molding die for the production of automotive dashboards. In specific use, firstly, during the die preparation stage, the electric push rod 19 is started, and its output end drives the upper die 4 to move upward. At the same time, the guide blocks 20 on both sides of the upper die 4 slide along the guide rod 17 to ensure that the upper die 4 rises stably and the die is opened. Then, the raw material of the automotive dashboard is injected into the cavity of the lower die 3.

[0033] Next, the mold is closed and extruded. The electric push rod 19 drives the upper mold 4 to move downward. The guide block 20 slides down along the guide rod 17 to ensure smooth movement. The positioning pin 16 at the bottom of the upper mold 4 is precisely inserted into the positioning hole 15 on the surface of the lower mold 3, completing the precise closure of the upper mold 4 and the lower mold 3. After that, the raw material is molded and cooled in the cavity.

[0034] Finally, in the demolding stage, the electric push rod 19 drives the upper mold 4 to rise and open. At this time, the servo motor 6 starts and drives the main shaft 5 to rotate. The main gear 7 on the main shaft 5 drives several sub-gears 9 that mesh with it to rotate in the opposite direction. The sub-gears 9 drive the corresponding support shaft 8 to rotate. The rectangular frame 10 at the top of the support shaft 8 rotates with it, causing the slide rod 11 to drive the slider 13 to slide within the rectangular frame 10. The spring 14 is repeatedly stretched and reset, which in turn drives the striking ball 12 to strike the four sides of the lower mold 3 simultaneously. The lower mold 3 vibrates due to the striking, causing the internally molded and cooled car dashboard to separate from the cavity, making it easier for the operator to remove the molded product.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Mould for the production of dashboard panels, comprising a support base (1), characterised in that: The support base (1) is provided with a placement platform (2), and a lower mold (3) is fixedly installed at the center of the surface of the placement platform (2). An upper mold (4) is provided on the top of the lower mold (3). Both the lower mold (3) and the upper mold (4) are provided with cavities that are adapted to the structure of the vehicle dashboard. A striking structure for striking the outer wall of the lower mold (3) is provided between the support base (1) and the placement platform (2). The striking structure includes a main shaft (5), which is rotatably installed between the support base (1) and the placement platform (2) and located at the center of the support base (1) and the placement platform (2). A servo motor (6) is provided at the bottom end of the main shaft (5). A main gear (7) is fixedly installed on the outside of the main shaft (5). Several support shafts (8) are rotatably installed between the support base (1) and the placement platform (2) and located on the outside of the main shaft (5). A gear (9) is fixedly installed on the outside of each of the several support shafts (8). A rectangular frame (10) is fixedly installed at the top end of the support shaft (8). A slide rod (11) is slidably installed inside the rectangular frame (10). A striking ball (12) is provided at one end of the slide rod (11). A slider (13) is provided inside the rectangular frame (10) and at the other end of the slide bar (11), and a spring (14) is provided on one side of the slider (13).

2. The press mold for producing an automobile instrument panel according to claim 1, characterized by: The lower mold (3) has several positioning holes (15) on its surface, and the upper mold (4) has several positioning pins (16) fixedly installed at its bottom. The positioning pins (16) and the positioning holes (15) are compatible in structure.

3. The press mold for producing an automobile panel according to claim 1, wherein: Two guide rods (17) are provided on the surface of the placement platform (2) and on both sides of the lower mold (3). A support plate (18) is fixedly installed on the top of several guide rods (17). An electric push rod (19) is fixedly installed on the support plate (18), and the output end of the electric push rod (19) is fixedly connected to the surface of the upper mold (4).

4. The press mold for producing an automobile instrument panel according to Claim 1, characterized by: Two guide blocks (20) are fixedly installed on both sides of the outer wall of the upper mold (4), and the guide blocks (20) are slidably connected to the outside of the guide rod (17).

5. The molding die for manufacturing automotive dashboards according to claim 1, characterized in that: The servo motor (6) is fixedly installed at the bottom of the support base (1), and the output end of the servo motor (6) is fixedly connected to the main shaft (5). The top ends of several support shafts (8) extend to the top of the placement platform (2). Bearing seats (21) are provided at the connection between several support shafts (8) and the placement platform (2), and the bearing seats (21) are rotatably connected to the placement platform (2). Several gears (9) mesh with the main gear (7).

6. The molding die for manufacturing automotive dashboards according to claim 1, characterized in that: The outer wall of the slider (13) is slidably connected to the inner wall of the rectangular frame (10), and the two ends of the spring (14) are respectively connected to the slider (13) and the inner wall of the rectangular frame (10).