An injection molding device for electric vehicle instrument panel housing

By designing a hydraulically driven mold closing structure and a detachable mold core, the problem of fixed mold cavity specifications in existing equipment has been solved, enabling rapid replacement and convenient disassembly of the mold core, thereby improving the functional versatility and operational efficiency of injection molding equipment.

CN224276044UActive Publication Date: 2026-05-26TIANJIN HONGYUEDA TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN HONGYUEDA TECH CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing injection molding equipment for electric vehicle instrument panels has fixed mold cavity specifications, which means that it can only injection mold electric vehicle instrument panels of a single specification, and it is inconvenient to change to other specifications.

Method used

An injection molding device was designed, comprising a hydraulic rod, a slide block, a top mold, a bottom mold, mold core A, and mold core B. The top mold and bottom mold are closed by the hydraulic rod. Mold core A and mold core B can be easily disassembled and replaced by unscrewing the screw rod. The design of the support plate, ejector rod, and return spring facilitates the removal of the instrument housing after molding.

Benefits of technology

It enables quick replacement and convenient disassembly of mold cores, improves the functional versatility of injection molding equipment, facilitates the removal of instrument housings after molding, and enhances operational efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224276044U_ABST
    Figure CN224276044U_ABST
Patent Text Reader

Abstract

This utility model relates to the technical field of injection molding equipment for electric vehicle instrument shells, specifically an injection molding device for electric vehicle instrument shells. It includes a support frame, a hydraulic rod mounted on the top surface of the support frame, and a slide block slidably connected to the support frame at the power output end of the hydraulic rod. A top mold is bolted to the side of the slide block away from the hydraulic rod, and a bottom mold adapted to the top mold is mounted inside the support frame. During the use of the electric vehicle instrument shell injection molding equipment, the hydraulic rod can be used to push the top mold to move, causing the top mold to engage with the bottom mold on the support frame, thus completing mold closing and facilitating subsequent injection molding. The mold cores A and B inside the bottom and top molds can be easily disassembled and replaced. Mold cores A and B can be disassembled simply by unscrewing multiple sets of screws around the bottom and top molds, facilitating replacement with mold cores A and B of corresponding specifications for electric vehicle instrument shells, thereby improving the versatility of the injection molding equipment.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of electric vehicle instrument panel injection molding equipment, specifically to an electric vehicle instrument panel injection molding device. Background Technology

[0002] The instrument panel housing of an electric vehicle is a protective component installed on the outside of the vehicle's dashboard, primarily used for protection and enhancing the overall aesthetics of the vehicle. Patent number CN202222276094.8 discloses an injection mold for easily demolded electric vehicle instrument panel housings. After the instrument panel housing cools, cold water from the circulating water tank can be returned to the tank via a second circulation pipe, facilitating water circulation and maximizing water resource utilization. This also facilitates cooling of the molded instrument panel housing, making it easier for operators to use. However, during the use of electric vehicle instrument panel housing injection molding equipment, the fixed mold cavity specifications limit its ability to mold only a single specification of instrument panel housing. If other specifications need to be molded, the entire upper and lower molds must be disassembled and replaced, which is inconvenient. Therefore, we propose an electric vehicle instrument panel housing injection molding device. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides an injection molding device for electric vehicle instrument housings.

[0004] The technical solution adopted by this utility model to solve its technical problem is an injection molding device for electric vehicle instrument shells, including a bracket. A hydraulic rod is mounted on the top surface of the bracket, and a slide block is mounted on the power output end of the hydraulic rod and slidably connected to the bracket. A top mold is bolted to the side of the slide block away from the hydraulic rod, and a bottom mold adapted to the top mold is mounted on the inner side of the bracket. A locking hole is opened on the inner side of the bottom mold, and a mold core A for injection molding of electric vehicle instrument shells is locked in the locking hole. A mold core B adapted to mold core A is locked on the inner side of the top mold. Pin holes for limiting are opened on the outer peripheral surfaces of mold core A and mold core B, and there are multiple sets of pin holes. Rotary rods that are locked in the pin holes are screwed onto the outer peripheral surfaces of the bottom mold and the top mold, and there are multiple sets of rotary rods. A pull ring for rotation is integrally constructed on the outer peripheral surface of the rotary rod.

[0005] A support plate is slidably installed inside the card hole, and a push rod that matches the mold core A is fitted on the top surface of the support plate. There are multiple sets of push rods. A return spring for pushing the support plate to move is fitted between the support plate and the card hole. There are multiple sets of return springs. The top two side surfaces of the support plate are integrally constructed with a vertical shaft that is inserted and connected to the bottom mold.

[0006] By adopting the above technical solution, during the use of the injection molding equipment for electric vehicle instrument shells, the hydraulic rod can be used to push the top mold to move and make the top mold fit with the bottom mold on the bracket, thereby completing the mold closing and facilitating subsequent injection molding. The mold cores A and B inside the bottom mold and top mold can be easily disassembled and replaced. Moreover, by simply unscrewing the multiple sets of screw rods on the outer periphery of the bottom mold and top mold, the mold cores A and B can be disassembled and easily replaced with mold cores A and B with corresponding specifications for electric vehicle instrument shells, thereby improving the versatility of the injection molding equipment's functions.

[0007] When the top mold approaches the bottom mold under the push of the hydraulic rod, the top mold will first press the protruding vertical shaft on the bottom mold, so that the vertical shaft can retract into the bottom mold. At the same time, the vertical shaft can push the support plate in the card hole inside the bottom mold, so that the support plate drives the ejector rod to return to its position. At this time, the top of the ejector rod is flush with the inside of the mold core A. Then, the raw material can be poured into the groove between the mold core A and the mold core B through the injection hole on the surface of the top mold. After the electric vehicle instrument shell material between the mold core A and the mold core B is formed under the operation of the cooling structure, the top mold will separate from the bottom mold under the operation of the hydraulic rod. When the top mold separates, when there is no pressure on the vertical shaft, the multiple sets of return springs in the card hole can push the support plate in the card hole to slide, so that the support plate can rise and drive the multiple sets of ejector rods to eject the formed instrument shell inside the mold core A, which is convenient for unloading and easy for personnel to pick up the formed instrument shell.

[0008] Specifically, a protective rubber pad is snapped onto the top surface of the vertical shaft.

[0009] By adopting the above technical solution, the rubber pad has good elasticity and wear resistance, which helps to reduce the damage caused by the collision between the vertical shaft and the top mold.

[0010] Specifically, the inner side of the card hole is fitted with a vertical rod that fits into the support plate, and there are multiple sets of vertical rods.

[0011] By adopting the above technical solution, the vertical rod can be easily inserted into and slidably connected with the tray in the card hole, which facilitates the improvement of the stability of the tray when it moves up and down in the card hole.

[0012] Specifically, the top surface of the bottom mold has an integrally formed protrusion that matches the mold core A, and there are multiple sets of protrusions.

[0013] By adopting the above technical solution, the protrusions on the surface of the bottom mold can fit together with the mold core A, which facilitates the improvement of the stability of the mold core A when it is snapped into the bottom mold, so that the mold core A can operate more stably.

[0014] Specifically, the bottom mold and the top mold each have grooves on their opposite sides, and there are multiple sets of grooves.

[0015] By adopting the above technical solution, the grooves are located on the two protruding sides of the outer periphery of mold core A, making it more convenient to disassemble mold core A.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The technical solution of this application, through the design of hydraulic rods, slide blocks, top molds, bottom molds, locking holes, mold cores A and B, pin holes, rotating rods, and pull rings, enables the hydraulic rods to push the top mold to move during the use of the injection molding equipment for electric vehicle instrument shells, so that the top mold and the bottom mold on the bracket can fit together, thereby completing the mold closing and facilitating subsequent injection molding. The mold cores A and B inside the bottom mold and top mold can be easily disassembled and replaced. Only by unscrewing the multiple sets of rotating rods on the outer periphery of the bottom mold and top mold can the mold cores A and B be disassembled, making it easy to replace them with mold cores A and B with corresponding specifications for electric vehicle instrument shells, thereby improving the versatility of the injection molding equipment.

[0018] 2. The technical solution of this application, through the design of a support plate, ejector rod, vertical shaft, and return spring, allows the top mold to approach the bottom mold under the push of the hydraulic rod. The top mold will first press the protruding vertical shaft on the bottom mold, allowing the vertical shaft to retract into the bottom mold. At the same time, the vertical shaft facilitates the push plate in the card hole inside the bottom mold, causing the support plate to drive the ejector rod back to its original position. At this time, the top of the ejector rod is flush with the inner side of mold core A. Then, the raw material can be poured into the groove between mold core A and mold core B through the injection hole on the surface of the top mold. After the electric vehicle instrument shell material between mold core A and mold core B is formed under the operation of the cooling structure, the top mold will separate from the bottom mold under the operation of the hydraulic rod. When the top mold separates, the vertical shaft is not under pressure, and the multiple sets of return springs in the card hole can push the support plate in the card hole to slide, allowing the support plate to rise and drive the multiple sets of ejector rods to eject the formed instrument shell inside mold core A, facilitating material removal and making it convenient for personnel to pick up the formed instrument shell. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an isometric view of the present invention;

[0021] Figure 2 This is a schematic plan view of the connection structure between the bottom mold and the top mold of this utility model;

[0022] Figure 3 This is an exploded view of the connection structure between the pallet and the mold core A of this utility model;

[0023] In the diagram: 1. Bracket; 2. Hydraulic rod; 3. Slide block; 4. Top mold; 5. Bottom mold; 6. Clip hole; 7. Mold core A; 8. Mold core B; 9. Pin hole; 10. Rotary rod; 11. Pull ring; 12. Support plate; 13. Top rod; 14. Return spring; 15. Vertical shaft; 16. Rubber pad; 17. Vertical rod; 18. Protruding rod; 19. Groove. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please see Figure 1-3 This utility model provides a technical solution: an injection molding device for an electric vehicle instrument panel housing, including a bracket 1. A hydraulic rod 2 is mounted on the top surface of the bracket 1, and a slide block 3 that is slidably connected to the bracket 1 is mounted on the power output end of the hydraulic rod 2. A top mold 4 is bolted to the side of the slide block 3 away from the hydraulic rod 2, and a bottom mold 5 adapted to the top mold 4 is mounted on the inner side of the bracket 1. A locking hole 6 is provided on the inner side of the bottom mold 5, and a mold core A7 for injection molding of the electric vehicle instrument panel housing is locked in the locking hole 6. A mold core B8 adapted to the mold core A7 is locked on the inner side of the top mold 4, and pins for limiting the outer circumference of both mold core A7 and mold core B8 are provided. There are multiple sets of pin holes 9. The outer peripheral surfaces of the bottom mold 5 and the top mold 4 are screwed together with rotating rods 10 that engage with pin holes 9. There are multiple sets of rotating rods 10. The outer peripheral surface of the rotating rods 10 is integrally constructed with a pull ring 11 for rotation. A support plate 12 is slidably installed inside the locking hole 6. The top surface of the support plate 12 is equipped with a push rod 13 that engages with the mold core A7. There are multiple sets of push rods 13. A return spring 14 for pushing the support plate 12 to move is installed between the support plate 12 and the locking hole 6. There are multiple sets of return springs 14. The top two side surfaces of the support plate 12 are integrally constructed with vertical shafts 15 that engage with the bottom mold 5.

[0026] During use, when using the injection molding equipment for electric vehicle instrument housings, the hydraulic rod 2 can be used to push the top mold 4 to move and make the top mold 4 fit with the bottom mold 5 on the bracket 1, thereby completing the mold closing and facilitating subsequent injection molding. The mold cores A7 and B8 inside the bottom mold 5 and the top mold 4 can be easily disassembled and replaced. The mold cores A7 and B8 can be disassembled simply by unscrewing the multiple sets of rotating rods 10 on the outer periphery of the bottom mold 5 and the top mold 4, making it easy to replace them with mold cores A7 and B8 with corresponding specifications for electric vehicle instrument housings, thereby improving the versatility of the injection molding equipment's functions.

[0027] When the top mold 4 approaches the bottom mold 5 under the push of the hydraulic rod 2, the top mold 4 will first press the protruding vertical shaft 15 on the bottom mold 5, so that the vertical shaft 15 can retract into the bottom mold 5. At the same time, the vertical shaft 15 facilitates the push of the support plate 12 in the internal locking hole 6 of the bottom mold 5, so that the support plate 12 drives the ejector rod 13 to return to its original position. At this time, the top of the ejector rod 13 is flush with the inner side of the mold core A7. Then, the raw material can be poured into the groove between the mold core A7 and the mold core B8 through the injection hole on the surface of the top mold 4. When the mold core A7 and the mold core B8 are in contact, the raw material is injected into the groove between the mold core A7 and the mold core B8. After the raw material of the electric vehicle instrument shell between B8 is formed under the operation of the cooling structure, the top mold 4 will separate from the bottom mold 5 under the operation of the hydraulic rod 2. When the top mold 4 separates, the vertical shaft 15 has no pressure, and the multiple sets of return springs 14 in the jacking hole 6 can push the support plate 12 in the jacking hole 6 to slide, so that the support plate 12 can rise and drive the multiple sets of ejector rods 13 to eject the formed instrument shell inside the mold core A7, which is convenient for unloading and convenient for personnel to pick up the formed instrument shell.

[0028] like Figure 1 and Figure 3 As shown, a protective rubber pad 16 is snapped onto the top surface of the vertical shaft 15.

[0029] When in use, the rubber pad 16 has good elasticity and wear resistance, which helps to reduce the damage caused by the collision between the vertical shaft 15 and the top mold 4.

[0030] like Figure 2 As shown, the inner side of the card hole 6 is fitted with a vertical rod 17 that fits into the support plate 12, and there are multiple sets of vertical rods 17.

[0031] In use, the vertical rod 17 can be easily inserted into and slidably connected with the support plate 12 in the slot 6, which helps to improve the stability of the support plate 12 when it moves up and down in the slot 6.

[0032] like Figure 1 and Figure 2 As shown, the top surface of the bottom mold 5 has an integrally constructed protrusion 18 that matches the mold core A7, and there are multiple sets of protrusion 18.

[0033] When in use, the protrusion 18 on the surface of the bottom mold 5 can fit together with the mold core A7, which can improve the stability of the mold core A7 when it is snapped into the bottom mold 5, so that the mold core A7 can operate more stably.

[0034] like Figure 1 As shown, the bottom mold 5 and the top mold 4 are both provided with grooves 19 on opposite sides, and there are multiple sets of grooves 19.

[0035] When in use, the groove 19 is located on both sides of the outer periphery of the mold core A7, making it more convenient to disassemble the mold core A7.

[0036] The working principle and usage process of this utility model are as follows: In use, the corresponding structural components are first installed in suitable positions. During the injection molding process of the electric vehicle instrument panel housing, the hydraulic rod 2 can be used to push the top mold 4 to move, causing the top mold 4 to engage with the bottom mold 5 on the bracket 1, thus completing the mold closing and facilitating subsequent injection molding. The mold cores A7 and B8 inside the bottom mold 5 and top mold 4 can be easily disassembled and replaced. Simply unscrewing the multiple sets of rotating rods 10 around the bottom mold 5 and top mold 4 allows for the disassembly of mold cores A7 and B8, facilitating replacement with mold cores A7 and B8 of the corresponding specifications for electric vehicle instrument panels, thereby improving the versatility of the injection molding equipment. Simultaneously, when the top mold 4 approaches the bottom mold 5 under the push of the hydraulic rod 2, the top mold 4 will first press the protruding vertical shaft 15 on the bottom mold 5, causing the vertical shaft 15... 5 can retract into the bottom mold 5, and at the same time, the vertical shaft 15 can easily push the support plate 12 in the card hole 6 inside the bottom mold 5, so that the support plate 12 drives the ejector rod 13 back to its original position. At this time, the top of the ejector rod 13 is flush with the inner side of the mold core A7. Then, the raw material can be poured into the groove between the mold core A7 and the mold core B8 through the injection hole on the surface of the top mold 4. After the electric vehicle instrument shell material between the mold core A7 and the mold core B8 is formed under the operation of the cooling structure, the top mold 4 will separate from the bottom mold 5 under the operation of the hydraulic rod 2. When the top mold 4 separates, when the vertical shaft 15 has no pressure, the multiple sets of return springs 14 in the card hole 6 can push the support plate 12 in the card hole 6 to slide, so that the support plate 12 can rise and drive the multiple sets of ejector rods 13 to eject the formed instrument shell inside the mold core A7, which is convenient for unloading and convenient for personnel to pick up the formed instrument shell.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle instrument housing injection molding apparatus, characterized by, The system includes a bracket (1), on the top surface of which a hydraulic rod (2) is mounted, and at the power output end of the hydraulic rod (2) is a slide block (3) that is slidably connected to the bracket (1). A top mold (4) is bolted to the side of the slide block (3) away from the hydraulic rod (2), and a bottom mold (5) adapted to the top mold (4) is mounted on the inner side of the bracket (1). A locking hole (6) is provided on the inner side of the bottom mold (5), and a mold core for injection molding of electric vehicle instrument housing is locked in the locking hole (6). A(7), the top mold (4) is fitted with a mold core B(8) that is compatible with the mold core A(7), and the outer peripheral surfaces of both the mold core A(7) and the mold core B(8) are provided with pin holes (9) for limiting, and there are multiple sets of pin holes (9). The outer peripheral surfaces of the bottom mold (5) and the outer peripheral surfaces of the top mold (4) are screwed together with a rotating rod (10) that is fitted with the pin hole (9), and there are multiple sets of rotating rods (10). The outer peripheral surface of the rotating rod (10) is integrally constructed with a pull ring (11) for rotation. A support plate (12) is slidably installed inside the card hole (6), and a push rod (13) that fits with the mold core A (7) is mounted on the top surface of the support plate (12). There are multiple sets of push rods (13). A return spring (14) for pushing the support plate (12) to move is mounted between the support plate (12) and the card hole (6). There are multiple sets of return springs (14). The top two sides of the support plate (12) are integrally constructed with a vertical shaft (15) that is inserted and connected to the bottom mold (5).

2. The electric vehicle instrument housing injection molding device according to claim 1, characterized in that, The top surface of the vertical shaft (15) is fitted with a protective rubber pad (16).

3. The electric vehicle instrument panel injection molding device according to claim 1, characterized in that, The inner side of the card hole (6) is fitted with a vertical rod (17) that fits with the support plate (12), and there are multiple sets of vertical rods (17).

4. The electric vehicle instrument panel injection molding device according to claim 1, characterized in that, The top surface of the bottom mold (5) is integrally constructed with a protrusion (18) that matches the mold core A (7), and there are multiple sets of protrusions (18).

5. The electric vehicle instrument housing injection molding device according to claim 1, characterized in that, The bottom mold (5) and the top mold (4) are both provided with grooves (19) on opposite sides, and there are multiple sets of grooves (19).