A slider sleeve set automobile accessory mold

By introducing components such as ejector plates, drive rods, slides, and vents into the slider sleeve automotive parts mold, the problem of difficult removal of parts after injection molding is solved, realizing automated demolding and reducing vacuum negative pressure, thereby improving efficiency and reducing mold wear.

CN224588516UActive Publication Date: 2026-08-04NINGBO BIHAO MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO BIHAO MACHINERY CO LTD
Filing Date
2025-06-10
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

After injection molding, the plastic parts in existing slider sleeve automotive parts molds become tightly wrapped around the mold structure due to cooling and solidification, making them difficult to remove, increasing the workload of workers and reducing work efficiency.

Method used

A demolding assembly including an ejector plate, a drive rod, a round rod, a slide, an electromagnet, and a vent is designed. Through the design of automated ejection and vent, the parts can be easily removed and the vacuum negative pressure can be reduced.

Benefits of technology

This allows for easy removal of parts without additional manual assistance, improving demolding efficiency, reducing labor intensity, minimizing the risk of part deformation and wear, and extending mold life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile parts mould, specifically disclose a slider sleeve group automobile parts mould, which comprises a base, the top of base is equipped with the top seat, the lower portion of top seat is equipped with upper mould, a plurality of telescopic links are connected between base and top seat, the inside of top seat is equipped with injection port, injection port is linked with upper mould, the inside of base is equipped with lower mould, the inside of lower mould is equipped with stripping assembly, stripping assembly includes the ejection plate, the ejection plate is located in the inside of lower mould, and is contacted with the inner wall of lower mould, the bottom of ejection plate is fixedly connected with two round rods, the bottom of two round rods is fixedly connected with drive rod, and the top of two drive rods is fixedly connected with upper mould, the utility model discloses the setting of stripping assembly, when the accessory is ejected to a certain height, the operator can easily take it out from the mould, the whole stripping process does not need additional manual auxiliary stripping operation, greatly improves stripping efficiency, and reduces labour intensity.
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Description

Technical Field

[0001] This application relates to the field of guiding equipment technology, and more specifically, to a slider sleeve automotive parts mold. Background Technology

[0002] Slider sleeve automotive parts molds are specialized molds used to manufacture key automotive components, widely applied in the production of parts such as automotive seat adjustment systems, sunroof rails, and transmission synchronizers. These molds can process raw materials such as plastics and metals into slider sleeve components with specific shapes and precision. These components play a crucial role in the smoothing, guiding, positioning, and force transmission of a vehicle during operation, directly impacting its comfort, safety, and lifespan.

[0003] After injection molding is completed, the injection molded parts need to be removed from the inner side of the mold. During the injection molding process, the high-temperature molten plastic fills the mold cavity. When it cools and solidifies, it shrinks in volume and tightly wraps around the protrusions, cores and other structures of the mold, generating a large clamping force. This makes it difficult for workers to remove the plastic parts manually, thereby increasing the workload of workers and reducing work efficiency. Utility Model Content

[0004] To address the aforementioned issues, this application provides a slider sleeve automotive parts mold.

[0005] The technical solution for a slider sleeve automotive parts mold provided in this application is as follows:

[0006] A slider sleeve automotive parts mold includes a base, a top seat above the base, an upper mold below the top seat, multiple telescopic rods connecting the base and the top seat, an injection port inside the top seat that communicates with the upper mold, a lower mold inside the base, and a demolding component inside the lower mold.

[0007] The demolding assembly includes an ejector plate located inside the lower mold and in contact with the inner wall of the lower mold. Two round rods are fixedly connected to the bottom of the ejector plate, and a drive rod is fixedly connected to the bottom of each of the two round rods. The tops of the two drive rods are fixedly connected to the upper mold.

[0008] With the above technical solution, once the part is ejected to a certain height, the operator can easily remove it from the mold. The entire demolding process does not require additional manual assistance, which greatly improves demolding efficiency and reduces labor intensity.

[0009] Furthermore, the base has two sliding grooves inside, and two round rods are slidably connected to the corresponding sliding grooves.

[0010] Furthermore, two long rods are fixedly connected to both ends of the two drive rods, and a second trapezoidal block is fixedly connected to one end of each long rod.

[0011] Furthermore, grooves are provided at both ends of the base away from the drive rod, and blocks are slidably connected inside the two grooves.

[0012] Furthermore, each of the two blocks has a connecting plate fixedly connected to its top, and each of the two connecting plates has multiple plug rods fixedly connected to its opposite ends.

[0013] Furthermore, multiple vent holes are provided at both ends of the lower mold, and each plug rod is inserted into the corresponding vent hole.

[0014] Furthermore, both tanks are equipped with electromagnets, and the two electromagnets are magnetically connected to the corresponding blocks respectively.

[0015] Furthermore, each end of the two connecting plates is fixedly connected to a first trapezoidal block, and each second trapezoidal block is located on one side of the corresponding first trapezoidal block. The base has two through slots inside, and each second trapezoidal block and the long rod are slidably connected to the corresponding through slot.

[0016] Through the above technical solution, the venting hole opens in time during demolding, reducing the vacuum negative pressure generated inside the mold due to the ejection of parts, reducing the force required for the ejector plate to eject parts, reducing the risk of parts being deformed or damaged due to excessive force during demolding, and also reducing the wear of the ejection mechanism and extending the service life of the mold.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] (1) By setting the demolding component, the operator can easily remove the part from the mold after it is ejected to a certain height. The entire demolding process does not require additional manual assistance, which greatly improves demolding efficiency and reduces labor intensity.

[0019] (2) When the vent is demolded, the vent is opened in time, which reduces the vacuum negative pressure generated inside the mold due to the ejection of the parts, reduces the force required for the ejector plate to eject the parts, reduces the risk of the parts being deformed or damaged due to excessive force during demolding, and also reduces the wear of the ejection mechanism and extends the service life of the mold. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the connection structure between the upper and lower molds of this utility model;

[0023] Figure 4 This is a flowchart illustrating the mold-closing process of this utility model;

[0024] Figure 5 This is a partial view of the present invention;

[0025] Figure 6 For the present utility model Figure 5 Enlarged view of the structure at point A in the middle.

[0026] Explanation of reference numerals in the attached drawings: 1. Base; 2. Top seat; 3. Injection port; 4. Upper mold; 5. Lower mold; 6. Block; 7. First trapezoidal block; 8. Second trapezoidal block; 9. Drive rod; 10. Long rod; 11. Ejector plate; 12. Round rod; 13. Slide groove; 14. Telescopic rod; 15. Connecting plate; 16. Groove; 17. Vent hole; 18. Plug rod; 19. Electromagnet. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] Reference Figures 1-5 A slider sleeve automotive parts mold includes a base 1, a top seat 2 above the base 1, an upper mold 4 below the top seat 2, a plurality of telescopic rods 14 connecting the base 1 and the top seat 2, an injection port 3 inside the top seat 2, the injection port 3 being connected to the upper mold 4, a lower mold 5 inside the base 1, and a demolding component inside the lower mold 5.

[0029] The demolding assembly includes an ejector plate 11, which is located inside the lower mold 5 and in contact with the inner wall of the lower mold 5. Two round rods 12 are fixedly connected to the bottom of the ejector plate 11, and a drive rod 9 is fixedly connected to the bottom of each of the two round rods 12. The top ends of the two drive rods 9 are fixedly connected to the upper mold 4.

[0030] Reference Figures 1-2 The base 1 has two sliding grooves 13 inside, and two round rods 12 are slidably connected to the corresponding sliding grooves 13 respectively.

[0031] During injection molding, multiple telescopic rods 14 first drive the top seat 2 and the upper mold 4 to move downwards, which in turn drives the drive rod 9 to move downwards. When the drive rod 9 moves downwards, it drives the ejector plate 11 to move downwards. When the upper mold 4 and the lower mold 5 are closed, the ejector plate 11 contacts the bottom wall of the lower mold 5. Molten plastic is injected into the cavity formed by the upper mold 4 and the lower mold 5 through the injection port 3 inside the top seat 2. The plastic cools and solidifies in the cavity.

[0032] After cooling is complete, the telescopic rod 14 drives the upper mold 4 to move upward. When the upper mold 4 moves upward, the drive rod 9 drives the ejector plate 11 to rise smoothly along the inner wall of the lower mold 5, and pushes the parts out of the cavity of the lower mold 5 with a uniform thrust.

[0033] Once the part is ejected to a certain height, the operator can easily remove it from the mold. The entire demolding process requires no additional manual assistance, greatly improving demolding efficiency. Simultaneously, as the upper mold 4 descends, the drive rod 9 drives the round rod 12 and the ejector plate 11 to slide downwards along the slide groove 13, returning the ejector plate 11 to its initial position. This prepares the ejector plate 11 for the next injection molding demolding cycle, reducing manual intervention and labor intensity.

[0034] Reference Figures 3-5 Two long rods 10 are fixedly connected to both ends of the two drive rods 9. A second trapezoidal block 8 is fixedly connected to one end of each long rod 10. The base 1 has grooves 16 at both ends away from the drive rods 9. Blocks 6 are slidably connected inside the two grooves 16. Connecting plates 15 are fixedly connected to the top of the two blocks 6. Multiple blocking rods 18 are fixedly connected to the opposite ends of the two connecting plates 15. Multiple vent holes 17 are opened at both ends of the lower mold 5. Each blocking rod 18 is inserted into the corresponding vent hole 17. Electromagnets 19 are provided inside the two grooves 16. The two electromagnets 19 are magnetically connected to the corresponding blocks 6. A first trapezoidal block 7 is fixedly connected to both ends of the two connecting plates 15. Each second trapezoidal block 8 is located on one side of the corresponding first trapezoidal block 7. Two through slots are opened inside the base 1. Each second trapezoidal block 8 and the long rod 10 are slidably connected to the corresponding through slot.

[0035] In the initial position, the blocking rod 18 is not located inside the vent hole 17. At this time, the upper mold 4 descends and drives the long rods 10 at both ends and the second trapezoidal block 8 to move downward through the drive rod 9. At this time, the second trapezoidal block 8 will not contact the first trapezoidal block 7. When mold closing is required, the electromagnet 19 is energized and attracts the block 6, causing it to move. At this time, the blocking rod 18 is located inside the vent hole 17 and is flush with the inner wall of the lower mold 5. At this time, injection can be performed through the injection port 3. After injection is completed, the upper mold 4 will drive the two second trapezoidal blocks 8 to move upward. At this time, the electromagnet 19 will not be energized (during injection). When the upper mold 4 drives the second trapezoidal blocks 8 to move, they will contact the first trapezoidal blocks 7 on both sides of the connecting plate 15, and will immediately drive the blocking rod 18 to move outward. At this time, the vent hole 17 reopens. During the process of the ejector plate 11 ejecting the molded part from the cavity of the lower mold 5, air can enter the mold through the vent hole 17, avoiding the formation of a vacuum inside and hindering the demolding of the part, thus helping the part to smoothly leave the mold cavity.

[0036] When demolding, the vent 17 opens in time, reducing the vacuum negative pressure inside the mold caused by the ejection of the parts, reducing the force required for the ejector plate 11 to eject the parts, reducing the risk of the parts being deformed or damaged due to excessive force during demolding, and also reducing the wear of the ejection mechanism and extending the service life of the mold.

[0037] Working principle: When the mold is working, in the initial state, the blocking rod 18 is located outside the vent hole 17. The upper mold 4 moves downward under the drive of the telescopic rod 14, which drives the driving rod 9, the long rod 10 and the second trapezoidal block 8 to move downward. However, at this time, the second trapezoidal block 8 does not contact the first trapezoidal block 7 and does not affect the position of the blocking rod 18. When the mold is closed for injection, the electromagnet 19 is energized and generates magnetism, attracting the block 6 to slide in the groove 16. Through the connecting plate 15, the blocking rod 18 is driven to insert into the vent hole 17 and become flush with the inner wall of the lower mold 5, thus sealing the vent hole 17. At the same time, the ejector plate 11 descends with the upper mold 4 and contacts the bottom wall of the lower mold 5. Then, the molten plastic is injected through the injection port 3 into the cavity formed by the upper mold 4 and the lower mold 5 to cool and form. After injection molding is completed, the telescopic rod 14 moves the upper mold 4 upward, and the drive rod 9, long rod 10, and second trapezoidal block 8 rise synchronously. The electromagnet 19 is de-energized, and during the rise of the second trapezoidal block 8, its inclined surface contacts the first trapezoidal block 7, pushing the first trapezoidal block 7, connecting plate 15, and blocking rod 18 to move outward, causing the blocking rod 18 to be pulled out of the vent hole 17, and the vent hole 17 to reopen. At the same time, the drive rod 9 moves the ejector plate 11 upward along the inner wall of the lower mold 5, ejecting the molded part from the cavity. Air enters the mold through the opened vent hole 17, preventing vacuum from hindering demolding. After the part is ejected to a certain height, it is removed by the operator. As the upper mold 4 descends again, the drive rod 9 moves the round rod 12 and ejector plate 11 down the slide groove 13 to reset, and the second trapezoidal block 8 and long rod 10 also return to their initial positions. The electromagnet 19 can be energized again to control the blocking rod 18 to close the vent hole 17, and the next injection molding cycle begins.

[0038] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A slider cover set automobile accessory mold characterized by, include: A base (1) is provided above the base (1), and an upper mold (4) is provided below the upper mold (2). Multiple telescopic rods (14) are connected between the base (1) and the upper mold (2). An injection port (3) is provided inside the upper mold (4). A lower mold (5) is provided inside the base (1). A demolding assembly is provided inside the lower mold (5). The demolding assembly includes an ejector plate (11), which is located inside the lower mold (5) and in contact with the inner wall of the lower mold (5). Two round rods (12) are fixedly connected to the bottom of the ejector plate (11), and a drive rod (9) is fixedly connected to the bottom of each of the two round rods (12). The top ends of the two drive rods (9) are fixedly connected to the upper mold (4).

2. A slider cover set automobile accessory mold according to claim 1, characterized in that: The base (1) has two sliding grooves (13) inside, and the two round rods (12) are slidably connected to the corresponding sliding grooves (13).

3. A slider cover set automobile accessory mold according to claim 1, characterized in that: Two long rods (10) are fixedly connected to both ends of the two drive rods (9), and a second trapezoidal block (8) is fixedly connected to one end of each long rod (10).

4. A slider cover set automobile accessory mold according to claim 3, characterized in that: The base (1) has grooves (16) at both ends away from the drive rod (9), and blocks (6) are slidably connected inside the two grooves (16).

5. A slider cover set automobile accessory mold according to claim 4, characterized in that: The top ends of the two blocks (6) are fixedly connected to a connecting plate (15), and the opposite ends of the two connecting plates (15) are fixedly connected to a plurality of plug rods (18).

6. A slider cover set automobile accessory mold according to claim 5, characterized in that: The lower mold (5) has multiple vent holes (17) at both ends, and each of the plug rods (18) is inserted into the corresponding vent hole (17).

7. A slider cover set automobile accessory mold according to claim 4, characterized in that: Both of the two grooves (16) are equipped with electromagnets (19), and the two electromagnets (19) are magnetically connected to the corresponding blocks (6).

8. A slider cover set automobile accessory mold according to claim 5, wherein: Both ends of the two connecting plates (15) are fixedly connected to a first trapezoidal block (7), and each second trapezoidal block (8) is located on one side of the corresponding first trapezoidal block (7). The base (1) has two through slots inside, and each second trapezoidal block (8) and the long rod (10) are slidably connected to the corresponding through slot.