An automobile accessory pouring device

By employing the synchronous control of multiple ejector blocks and drive mechanisms in the automotive parts casting device, the problem of uneven force distribution during the demolding process of multi-planar thin-walled parts is solved, achieving efficient demolding and high-quality molding.

CN224586962UActive Publication Date: 2026-08-04HUAFU PRECISION TECHNOLOGY (MAANSHAN) CO LTD AUTO PARTS R&D BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAFU PRECISION TECHNOLOGY (MAANSHAN) CO LTD AUTO PARTS R&D BRANCH
Filing Date
2025-08-06
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing automotive parts casting equipment, thin-walled parts with multiple planes are prone to damage during demolding due to uneven stress.

Method used

A casting device for automotive parts was designed, which uses multiple ejector blocks that move up or down synchronously controlled by a movable plate, combined with a drive mechanism to achieve synchronous ejection of multiple height planes, thus avoiding uneven force distribution.

Benefits of technology

It improves demolding efficiency and molding quality, avoids damage to parts, and ensures the integrity of the molded parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of vehicle accessory pouring devices, the vehicle accessory pouring device includes base and the lower mould being set to the top of base, the upper mould is set on the lower mould with can open and close, movable plate is set between base and lower mould, the bottom surface of lower mould is located in the position of different height and is provided with at least one ejection hole, movable plate is provided with the ejection block corresponding with ejection port, driving mechanism for driving movable plate vertical movement is installed on base. The vehicle accessory pouring device has multiple ejection blocks, synchronously moves up or drops by the same movable plate control, the vehicle accessory of multiple height plane is ejected demoulding after pouring forming, with the advantages that demoulding efficiency is good and forming quality is high.
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Description

Technical Field

[0001] This utility model relates to the field of casting, specifically to a casting device for automotive parts. Background Technology

[0002] Casting is a process in which liquid or semi-liquid materials (such as molten metal, concrete, ceramic slurry, etc.) are injected into a pre-prepared mold, and then cooled or solidified to form a specific shape. Its core characteristic is utilizing the fluidity of materials to create complex structures. Casting is widely used in the automotive parts industry; once the casting is complete, the molded part needs to be removed.

[0003] Patent CN219520453U discloses an auxiliary demolding device for alloy casting products, including an upper alloy casting mold, a lower alloy casting mold, and a worktable. The lower alloy casting mold is connected to the top of the worktable through four connecting components. An auxiliary demolding mechanism is provided between the lower alloy casting mold and the opposite side of the worktable for assisting demolding. An ejection mechanism is also provided below the lower alloy casting mold for ejecting the alloy product. The auxiliary demolding mechanism includes two sliding sleeves on the left and right.

[0004] The ejection mechanism of the alloy casting product auxiliary demolding device includes two ejector rods. The ejector rods pass through the lower mold of the alloy casting and extend into the mold groove in the lower mold of the alloy casting. When the product part to be ejected is a thin-walled part with multiple planes, the use of only two ejector rods of the same specification will cause local extrusion between the product part and the lower mold due to uneven force, resulting in damage to the product part. Utility Model Content

[0005] The purpose of this invention is to provide a casting device for automotive parts. This device has multiple ejector blocks that move up or down synchronously under the control of the same movable plate. After casting, automotive parts with multiple height planes are ejected and demolded, which has the advantages of good demolding efficiency and high molding quality.

[0006] To achieve the above objectives, this utility model provides a casting device for automotive parts, including a base and a lower mold disposed above the base. The lower mold is provided with an openable and closable upper mold. A movable plate is disposed between the base and the lower mold. The bottom surface of the lower mold is provided with at least one ejector hole at different heights. An ejector block corresponding to the ejector hole is provided on the movable plate. A drive mechanism for driving the movable plate to move vertically is installed on the base.

[0007] Preferably, the driving mechanism includes a horizontal slider and a parallel four-bar linkage connecting the horizontal slider and the movable plate, and a driving cylinder connected to the horizontal slider is mounted on the base.

[0008] Preferably, the base is provided with a groove for the horizontal slider to slide, and guide grooves are provided on both sides of the groove, and guide strips corresponding to the guide grooves are provided on both sides of the horizontal slider.

[0009] Preferably, the base has two support columns on each side of the slide groove, the upper end of the support column is provided with a stud, the left and right sides of the lower mold are provided with ear plates corresponding to the stud, the ear plates are sleeved on the stud, and the upper end of the stud is sleeved with a nut.

[0010] Preferably, the base is provided with two guide posts on each side of the slide groove, and the front and rear sides of the movable plate are provided with first guide protrusions that slide and engage with the guide posts.

[0011] Preferably, the lower mold has second guide protrusions on its front and rear sides that slide with the guide posts, and the upper mold has third guide protrusions on its front and rear sides that slide with the guide posts.

[0012] Preferably, both the horizontal slider and the movable plate are provided with a bearing seat that is rotatably connected to the parallel four-bar linkage, and the side of the parallel four-bar linkage is provided with a shaft that is rotatably connected to the bearing seat.

[0013] Preferably, a cylinder mounting plate is provided on the base, and a cylinder connecting plate is provided on the horizontal slider.

[0014] According to the above technical solution, this utility model provides a casting device for automotive parts, including a base and a lower mold disposed above the base. The lower mold is provided with an upper mold that can be opened and closed. A movable plate is provided between the base and the lower mold. The bottom surface of the lower mold is provided with at least one ejector hole at different heights. An ejector block corresponding to the ejector hole is provided on the movable plate. A driving mechanism for driving the movable plate to move vertically is installed on the base.

[0015] The usage and benefits of this automotive parts casting device are as follows: When using this device, after closing the upper and lower molds, the casting liquid is injected into the casting cavity through the pre-set casting port on the upper mold. After cooling, the upper mold is opened for demolding. The demolding process is as follows: the drive mechanism drives the movable plate upward, causing multiple ejector blocks to extend from the ejector holes and eject the cast part. Since the part has multiple planes of different heights, the simultaneous ejection of the part by multiple ejector blocks of different heights matching each plane height avoids damage caused by uneven force on the part.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of a casting device for automotive parts.

[0019] Figure 2 This is a schematic diagram of the overall structure of the automotive parts casting device after the upper mold is opened;

[0020] Figure 3 yes Figure 2 Another perspective on the overall structure diagram.

[0021] Explanation of reference numerals in the attached figures

[0022] 1-Base; 2-Support column; 3-Slide groove; 4-Guide groove; 5-Horizontal slider; 6-Shaft seat; 7-Modible plate; 8-Parallel four-bar linkage; 9-First guide protrusion; 10-Guide column; 11-Ejector block; 12-Lower mold; 13-Upper mold; 14-Third guide protrusion; 15-Drive cylinder; 16-Nut; 17-Stud; 18-Ear plate; 19-Gating gate; 20-Loading column; 21-Cylinder mounting plate; 22-Cylinder connecting plate; 23-Second guide protrusion; 24-Shaft. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0024] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as a limitation on the term.

[0025] See Figure 1-3 The automotive parts casting device shown includes a base 1 and a lower mold 12 disposed above the base 1. The lower mold 12 is provided with an upper mold 13 that can be opened and closed. A movable plate 7 is provided between the base 1 and the lower mold 12. The bottom surface of the lower mold 12 is provided with at least one ejection hole at different heights. The movable plate 7 is provided with an ejection block 11 corresponding to the ejection outlet. A drive mechanism for driving the movable plate 7 to move vertically is installed on the base 1.

[0026] By implementing the above technical solution, when using the automotive parts casting device, after the upper mold 13 and lower mold 12 are closed, the casting liquid is injected into the casting cavity through the preset casting port 19 on the upper mold 13. After cooling, the upper mold 13 is opened for demolding. The demolding process is as follows: the movable plate 7 is driven upward by the drive mechanism, which drives multiple ejector blocks 11 to extend from the ejector holes and eject the cast parts. Since the parts have multiple planes of different heights, the parts can be simultaneously ejected by multiple ejector blocks 11 of different heights that match each plane, thus avoiding damage caused by uneven force on the parts.

[0027] In this utility model, the ejector block 11 can be provided with one or more planes corresponding to a certain height, and the shape can be positive and negative, circular or rectangular.

[0028] In this embodiment, to further provide a driving mechanism, the driving mechanism includes a horizontal slider 5 and a parallel four-bar linkage 8 connecting the horizontal slider 5 and the movable plate 7. A driving cylinder 15 connected to the horizontal slider 5 is mounted on the base 1. The driving cylinder 15 pushes the horizontal slider 5 to move horizontally. Since the horizontal slider 5 and the movable plate 7 are connected by the parallel four-bar linkage 8, the horizontal movement of the horizontal slider 5 enables the parallel four-bar linkage 8 to push the movable plate 7 to move vertically.

[0029] In this embodiment, the base 1 is provided with a groove 3 for the horizontal slider 5 to slide, and guide grooves 4 are provided on both sides of the groove 3. Guide strips corresponding to the guide grooves 4 are provided on both sides of the horizontal slider 5. This arrangement makes the horizontal slider 5 slide more stably.

[0030] In this embodiment, two support columns 2 are provided on each side of the slide groove 3 on the base 1. A stud 17 is provided at the upper end of each support column 2. Ear plates 18 corresponding to the studs 17 are provided on the left and right sides of the lower mold 12. The ear plates 18 are fitted onto the studs 17, and a nut 16 is fitted at the upper end of each stud 17. This arrangement uses four support columns 2 to provide installation and support for the lower mold 12, raising its position.

[0031] In this embodiment, two guide posts 10 are provided on each side of the slide groove 3 on the base 1, and first guide protrusions 9 are provided on the front and rear sides of the movable plate 7 to slide and engage with the guide posts 10. With this arrangement, the sliding engagement between the guide posts 10 and the first guide protrusions 9 allows the movable plate 7 to always move in the vertical direction, thus realizing the ejection operation.

[0032] In this embodiment, the lower mold 12 has second guide protrusions 23 on its front and rear sides that slide with the guide posts 10, and the upper mold 13 has third guide protrusions 14 on its front and rear sides that slide with the guide posts 10. This arrangement, with the second guide protrusions 23 and the guide posts 10 sliding with each other, increases the accuracy of the positions of the upper mold 13 and the lower mold 12, thereby improving the casting quality of the parts. The upper mold 13 has a sprue 19 and a loading post 20 at its upper end. The loading post 20 is connected to an external load-bearing device for lifting the upper mold 13 to open or lowering it to close. The external load-bearing device can be a hydraulic cylinder.

[0033] In this embodiment, both the horizontal slider 5 and the movable plate 7 are provided with bearing seats 6 that are rotatably connected to the parallel four-bar linkage 8, and the side of the parallel four-bar linkage 8 is provided with a shaft body 24 that is rotatably connected to the bearing seat 6. With this arrangement, two parallel four-bar linkages 8 are provided on each side, and the parallel four-bar linkages 8 are rotatably connected to the corresponding bearing seats 6, so as to realize the synchronous swing of the four parallel four-bar linkages 8.

[0034] In this embodiment, a cylinder mounting plate 21 is provided on the base 1, and a cylinder connecting plate 22 is provided on the horizontal slider 5. This arrangement provides a mounting position and connection position for the drive cylinder 15.

[0035] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0037] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. An automobile accessory pouring device characterized by comprising: The automotive parts casting device includes a base (1) and a lower mold (12) disposed above the base (1). The lower mold (12) is provided with an upper mold (13) that can be opened and closed. A movable plate (7) is provided between the base (1) and the lower mold (12). At least one ejector hole is provided on the bottom surface of the lower mold (12) at different heights. An ejector block (11) corresponding to the ejector hole is provided on the movable plate (7). A drive mechanism for driving the movable plate (7) to move vertically is installed on the base (1).

2. The vehicle accessory pouring apparatus of claim 1, wherein, The driving mechanism includes a horizontal slider (5) and a parallel four-bar linkage (8) connecting the horizontal slider (5) and the movable plate (7). A driving cylinder (15) connected to the horizontal slider (5) is installed on the base (1).

3. The vehicle accessory pouring apparatus of claim 2, wherein, The base (1) is provided with a groove (3) for the horizontal slider (5) to slide; The slide groove (3) is provided with guide grooves (4) on both sides, and the horizontal slider (5) is provided with guide strips corresponding to the guide grooves (4) on both sides.

4. The automotive trim pouring apparatus of claim 3, wherein, Two support columns (2) are provided on each side of the slide groove (3) on the base (1). A stud (17) is provided at the upper end of the support column (2). Ear plates (18) corresponding to the stud (17) are provided on the left and right sides of the lower mold (12). The ear plates (18) are sleeved on the stud (17). A nut (16) is sleeved at the upper end of the stud (17).

5. The vehicle accessory pouring apparatus of claim 3, wherein, The base (1) is provided with two guide posts (10) on each side of the slide groove (3), and the movable plate (7) is provided with first guide protrusions (9) that slide with the guide posts (10) on the front and rear sides.

6. The vehicle accessory pouring apparatus of claim 5, wherein, The lower mold (12) has a second guide protrusion (23) that slides with the guide post (10) on both the front and rear sides, and the upper mold (13) has a third guide protrusion (14) that slides with the guide post (10) on both the front and rear sides.

7. The vehicle accessory pouring apparatus of claim 2, wherein, Both the horizontal slider (5) and the movable plate (7) are provided with a bearing seat (6) that is rotatably connected to the parallel four-bar linkage (8), and the side of the parallel four-bar linkage (8) is provided with a shaft (24) that is rotatably connected to the bearing seat (6).

8. The automotive trim pouring apparatus of claim 2, wherein, A cylinder mounting plate (21) is provided on the base (1); A cylinder connecting plate (22) is provided on the horizontal slider (5).