Inclined straight ejection injection mold for outer cover plate of glove box

By designing an angled, straight-ejection injection mold, the problem of damage to the buckle structure of the glove box outer cover during ejection was solved, achieving a stable and efficient mold opening process and reducing the risk of mold damage and floor space.

CN223834932UActive Publication Date: 2026-01-27TAIZHOU SHUNWEI MOLD CO LTD
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Patent Information

Application Number
CN202420720156.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-09
Publication Date
2026-01-27
Estimated Expiration
2034-04-09

AI Technical Summary

Technical Problem

Existing injection molding molds are prone to breaking the snap-fit ​​parts when ejecting the outer cover of the glove box, especially when facing obtuse-angle snap-fit ​​structures, causing mold damage, and also occupying a large area and making mold opening unstable.

Method used

The design adopts a slanted straight ejector injection mold. Through the inclined cavity and ejection mechanism, the slanted ejector rod and ejector block work together with the core-pulling structure to achieve stable ejection of the snap-fit ​​structure, reduce damage from straight ejection, and ensure mold opening stability by combining limit components and drive grooves.

Benefits of technology

It effectively reduces damage to the snap-fit ​​structure, improves the stability and efficiency of mold opening, reduces the mold's footprint, and ensures that the mold can still be successfully demolded in the event of a power failure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a glove box outer cover plate oblique straight ejection injection mold, which comprises an upper mold, a lower mold and an ejection mechanism, the upper mold and the lower mold jointly form a cavity for forming a glove box outer cover plate, the cavity formed by the upper mold and the lower mold is obliquely arranged, and the ejection mechanism comprises a straight ejection structure and a core pulling structure. The straight ejection structure and the core pulling structure work simultaneously, the core pulling structure comprises a first ejection plate, an inclined ejection rod and an ejection block, the first ejection plate moves in the mold opening and closing direction, one end of the inclined ejection rod is arranged on the ejection block, the other end of the inclined ejection rod is arranged on the first ejection plate, and the ejection block abuts against the bottom end of an outer cover plate of the glove box. A groove is formed in the ejector block, and the groove and the lower die are jointly used for forming a buckle structure. The ejection block and the lower mold are used for forming a buckle structure, the precision of the inner surface is guaranteed, the ejection block obliquely moves and is pulled out of the buckle structure during mold opening operation due to the design of the inclined ejection rod, the situation that the buckle structure is damaged due to straight ejection is reduced, meanwhile, the occupied area is reduced due to the oblique arrangement of the mold cavity, and the ejection block can be conveniently pulled out during mold opening; and the working stability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to a glove box outer cover plate inclined straight top injection mold. Background Technology

[0002] Related technologies for glove box outer cover 7, such as Figure 1 As shown, a snap-fit ​​structure 71 is provided below the outer cover plate 7 of the glove box. The snap-fit ​​structure 71 includes a first snap-fit ​​part 711 and a second snap-fit ​​part 712. The first snap-fit ​​part 711 is designed to be fixed to the bottom surface of the cover plate perpendicular to the length direction of the cover plate. The second snap-fit ​​part 712 is inclined and fixed to the lower side of the first snap-fit ​​part 711. The central axis of the second snap-fit ​​part 712 is set at an obtuse angle to the central axis of the first snap-fit ​​part 711.

[0003] In common injection molding molds, multiple straight rods perpendicular to the mold are often used to eject and demold. However, when facing two first and second locking parts set at an obtuse angle, the above ejection method will inevitably break one of the locking parts regardless of how the cover plate is placed, causing damage to the mold. Utility Model Content

[0004] To reduce the likelihood of demolding failure caused by directly ejecting the outer cover of the glove box, this application provides an inclined straight-ejection injection mold for the outer cover of the glove box.

[0005] The technical solution provided in this application for a glove box outer cover plate inclined straight-top injection mold is as follows:

[0006] A glove box outer cover plate injection mold with a slanted and straight ejector includes an upper mold, a lower mold, and an ejection mechanism. The upper mold and the lower mold together form a cavity for molding the glove box outer cover plate. The cavity formed by the upper mold and the lower mold is inclined. The ejection mechanism includes a straight ejector structure and a core-pulling structure. The straight ejector structure and the core-pulling structure work simultaneously. The core-pulling structure includes a first top plate, a slanted ejector rod, and a top block. The first top plate moves along the mold opening and closing direction. One end of the slanted ejector rod is disposed on the top block, and the other end of the slanted ejector rod is disposed on the first top plate. The top block abuts against the bottom end of the glove box outer cover plate. A groove is formed on the top block. The groove is used to work with the lower mold to form a snap-fit ​​structure.

[0007] The above technical solution utilizes the snap-fit ​​structure between the top block and the lower mold to ensure the precision of the inner surface. The design of the angled ejector rod allows the top block to tilt and move during mold opening and be pulled out of the snap-fit ​​structure, reducing the possibility of the snap-fit ​​structure being damaged by a straight ejector. At the same time, the inclined cavity setting reduces the floor space and facilitates the removal of the top block during mold opening, thus improving operational stability.

[0008] Preferably, the straight ejector structure includes a straight ejector rod and a second top plate, the second top plate moving along the mold opening and closing direction, and the straight ejector rod being used to eject the outer cover plate of the glove box along the mold opening direction.

[0009] Through the above technical solutions, the direct ejection structure can effectively eject the mold, making the mold opening process smoother and more efficient.

[0010] Preferably, the straight push rod includes a plurality of first straight push rods and a plurality of second straight push rods. One end of the plurality of first straight push rods is disposed on a second top plate, the second top plate is located below the first top plate, and the other end of the plurality of first straight push rods abuts against the bottom surface of the glove box outer cover plate near the buckle structure. One end of the plurality of second straight push rods is disposed on the second top plate, and the other end of the plurality of second straight push rods abuts against the bottom surface of the glove box outer cover plate away from the buckle structure.

[0011] Through the above technical solution, the first and second straight push rods are designed separately, which can more stably support the bottom surface of the glove box outer cover plate, ensuring stability during the mold opening process.

[0012] Preferably, a movable block is also provided on one end of the first straight push rod that abuts against the bottom surface of the glove box outer cover plate. The movable block has a flange. When the mold is opened, the flange and the movable block together engage the side of the glove box outer cover plate, restricting the movement of the glove box outer cover plate along the cavity width direction.

[0013] With the above technical solution, during the mold opening process, the mold moves in the direction of the ejection of the inclined ejector rod due to the ejection of the inclined ejector rod. The flange design locks the mold onto the movable block, restricting the mold to move only in the mold opening direction, thus ensuring the stability of the mold opening operation.

[0014] Preferably, the first straight push rod is further provided with a drive groove. The first straight push rod passes through the first top plate through the drive groove. The length direction of the drive groove is the same as the length direction of the first straight push rod. When the first top plate moves along the mold opening direction, the first top plate can abut against the top wall of the drive groove when the second top plate is not moving. The first straight push rod is thus driven to follow the first top plate to move along the mold opening direction.

[0015] The above technical solution reduces the situation where only the core-pulling structure works due to power source failure. The design of the drive groove ensures that the first ejector rod can also work when only the first ejector plate is moving, thus ensuring that the mold can be successfully demolded even when only the first ejector plate is moving.

[0016] Preferably, it also includes a limiting component, which includes a limiting ring and a stop block. The limiting ring is fixed to the inclined ejector pin and the first straight ejector rod. The stop block is disposed on the bottom surface of the lower mold and is located below the limiting ring. When the limiting ring abuts against the stop block, the top surfaces of the ejector pin and the straight ejector rod are flush with the top surface of the lower mold.

[0017] The above technical solution reduces the possibility of mold failure due to slight misalignment between the top surface of the ejector block and the top surface of the lower mold during mold closing, thus improving the stability of the mold closing process.

[0018] Preferably, the inclined ejector rod is mounted on the first top plate via a sliding structure. The sliding structure includes a base and a slider. The base is mounted on the first top plate, the slider slides on the base perpendicular to the mold opening direction, and the inclined ejector rod is mounted on the slider.

[0019] With the above technical solution, when the first top plate moves along the mold opening and closing direction, the slider moves on the base perpendicular to the mold opening and closing direction, thereby causing the inclined guide post to drive the top block to move along the cavity tilting direction.

[0020] The main technical effects of this utility model are reflected in the following aspects:

[0021] 1. This utility model, through the design of a core-pulling structure, allows the ejector block to tilt and move during mold opening operations, thus reducing the possibility of damaging the snap-fit ​​structure by direct thrust.

[0022] 2. This utility model, by designing a mold for demolding the flanged locking post, restricts the mold to move only along the mold opening direction, ensuring stability during mold opening operations;

[0023] 3. This utility model, through the design of the drive groove, ensures that the first ejector rod can also work when only the first top plate is moving, thus ensuring that the mold can be successfully demolded even when only the first top plate is moving. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the related technology;

[0025] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the structure of this application embodiment with the upper mold removed;

[0027] Figure 4 This is a schematic diagram of the overall structure of the ejection mechanism in the embodiments of this application;

[0028] Figure 5 This is a schematic diagram of the overall structure of the limiting component in the embodiments of this application.

[0029] Reference numerals: 1. Upper mold; 11. Injection port; 2. Lower mold; 3. Ejection mechanism; 31. Straight ejector structure; 311. Straight ejector rod; 3111. First straight ejector rod; 3112. Movable block; 3113. Flanged edge; 3114. Drive groove; 3115. Second straight ejector rod; 312. Second top plate; 32. Core pulling structure; 321. First top plate; 322. Angled ejector rod; 323. Ejector block; 3231. Groove; 324. Sliding structure; 3241. Base; 3242. Slider; 4. Cavity; 5. Limiting component; 51. Limiting ring; 52. Stop; 6. Cooling pipe; 7. Glove box outer cover; 71. Snap-fit ​​structure; 711. First snap-fit ​​part; 712. Second snap-fit ​​part. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-5 The specific embodiments of this utility model will be further described in detail to make the technical solution of this utility model easier to understand and master.

[0031] This application discloses a glove box outer cover plate inclined straight top injection mold:

[0032] Reference Figures 2-4 A glove box outer cover plate inclined and straight ejection injection mold includes an upper mold 1, a lower mold 2 and an ejection mechanism 3. The upper mold 1 and the lower mold 2 together form a cavity 4 for molding the glove box outer cover plate 7. The cavity 4 formed by the upper mold 1 and the lower mold 2 is inclined. The ejection mechanism 3 includes a straight ejection structure 31 and a core-pulling structure 32. The straight ejection structure 31 and the core-pulling structure 32 work simultaneously. The core-pulling structure 32 includes a first top plate 321, an inclined ejector rod 322 and an ejector block 323. The first top plate 321 moves along the mold opening and closing direction. Generally, the injection molding machine is equipped with a power component to provide power to the first top plate 321. One end of the inclined ejector rod 322 is fixed on the ejector block 323, and the other end of the inclined ejector rod 322 is set on the first top plate 321. The ejector block 323 abuts against the bottom end of the glove box outer cover plate 7. A groove 3231 is opened on the ejector block 323. The groove 3231 is used together with the lower mold 2 to mold the snap-fit ​​structure 71. The use of the top block 323 and the lower mold 2 to form the snap-fit ​​structure 71 ensures the precision of the inner surface. The design of the inclined ejector rod 322 allows the top block 323 to tilt and move and be pulled out of the snap-fit ​​structure 71 during the mold opening operation, reducing the possibility of the snap-fit ​​structure 71 being damaged by a straight ejector. At the same time, the inclined setting of the cavity 4 reduces the floor space and facilitates the extraction of the top block 323 during mold opening, thus improving the stability of the operation.

[0033] Reference Figure 2 The upper mold 1 also includes an injection port 11 and a flow channel connected to the injection port 11. The flow channel connects the injection port 11 and the cavity 4. The injection port 11 is connected to an external injection molding machine and injects molding material into the cavity 4 through the flow channel to form the glove box outer cover plate 7.

[0034] Reference Figure 4 The direct ejector structure 31 includes a direct ejector rod 311 and a second ejector plate 312. The second ejector plate 312 moves along the mold opening and closing direction. Generally, injection molding machines are equipped with a power component to provide power to the second ejector plate 312. The direct ejector structure 31 can effectively eject the molded part, making the mold opening process smoother and more efficient.

[0035] Reference Figure 4 The straight push rod 311 includes several first straight push rods 3111 and several second straight push rods 3115. One end of each first straight push rod 3111 abuts against a second top plate 312, which is located below a first top plate 321. The other end of each first straight push rod 3111 abuts against the bottom surface of the glove box outer cover 7 near the snap-fit ​​structure 71. One end of each second straight push rod 3115 abuts against the second top plate 312, and the other end of each second straight push rod 3115 abuts against the bottom surface of the glove box outer cover 7 away from the snap-fit ​​structure 71. The separate design of the first straight push rods 3111 and the second straight push rods 3115 provides more stable support on the bottom surface of the glove box outer cover 7, ensuring stability during the mold opening process.

[0036] Reference Figure 4 The first ejector rod 3111 abuts against one end of the bottom surface of the glove box outer cover plate 7 and is fixed with a movable block 3112. The movable block 3112 has a flange 3113. When the mold is opened, the flange 3113 and the movable block 3112 together engage the side of the glove box outer cover plate 7, restricting the movement of the glove box outer cover plate 7 along the width direction of the cavity 4. During the mold opening process, due to the ejection of the inclined ejector rod 322, the mold will move in the ejection direction of the inclined ejector rod 322. The design of the flange 3113 engages the mold with the movable block 3112, restricting the mold to move only in the mold opening direction, ensuring the stability during the mold opening operation.

[0037] Reference Figure 4 The first ejector pin 3111 is also provided with a drive groove 3114. The first ejector pin 3111 passes through the first top plate 321 through the drive groove 3114. The length direction of the drive groove 3114 is the same as the length direction of the first ejector pin 3111. When the first top plate 321 moves along the mold opening direction, the first top plate 321 can abut against the top wall of the drive groove 3114 when the second top plate 312 is not moving. The first ejector pin 3111 is thus driven to follow the first top plate 321 in the mold opening direction. This reduces the situation where only the core-pulling structure 32 works due to malfunction. The design of the drive groove 3114 ensures that the first ejector pin 3111 can also work when only the first top plate 321 is moving, ensuring that the mold can be successfully demolded even when only the first top plate 321 is working.

[0038] Reference Figure 5It also includes a limiting component 5, which includes a limiting ring 51 and a stop block 52. The limiting ring 51 is fixed to the inclined ejector pin and the first straight ejector rod 3111. The stop block 52 is detachably fixed to the bottom surface of the lower mold 2 by bolts. The stop block 52 is located below the limiting ring 51. When the limiting ring 51 abuts against the stop block 52, the top surfaces of the ejector block 323 and the straight ejector rod 311 are flush with the top surface of the lower mold 2. This reduces the possibility of mold failure due to slight misalignment between the top surfaces of the ejector block 323 and the straight ejector rod 311 and the top surface of the lower mold 2 during mold closing, and improves the stability during the mold closing process.

[0039] Reference Figure 4 The inclined ejector rod 322 is mounted on the first top plate 321 via a sliding structure 324. The sliding structure 324 includes a base 3241 and a slider 3242. The base 3241 is fixed on the first top plate 321, and the slider 3242 slides on the base 3241 perpendicular to the mold opening direction. The inclined ejector rod 322 is fixed on the slider 3242. When the first top plate 321 moves along the mold opening and closing direction, the slider 3242 moves on the base 3241 perpendicular to the mold opening and closing direction, thereby causing the inclined guide post to drive the ejector block 323 to move along the inclined direction of the cavity 4.

[0040] Reference Figures 2-3 Cooling pipes 6 are also installed inside the upper mold 1 and the lower mold 2. The cooling pipes 6 are used to speed up product molding and improve production efficiency.

[0041] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A glove box outer cover plate angled straight-ejection injection mold, comprising an upper mold (1), a lower mold (2), and an ejection mechanism (3), wherein the upper mold (1) and the lower mold (2) together form a cavity (4) for molding the glove box outer cover plate (7), characterized in that, The cavity (4) formed by the upper mold (1) and the lower mold (2) is inclined. The ejection mechanism (3) includes a straight ejector structure (31) and a core-pulling structure (32). The straight ejector structure (31) and the core-pulling structure (32) work simultaneously. The core-pulling structure (32) includes a first top plate (321), an inclined ejector rod (322), and a top block (323). The first top plate (321) moves along the mold opening and closing direction. One end of the inclined ejector rod (322) is set on the top block (323), and the other end of the inclined ejector rod (322) is set on the first top plate (321). The top block (323) abuts against the bottom end of the glove box outer cover plate (7). A groove (3231) is opened on the top block (323). The groove (3231) is used together with the lower mold (2) to form the snap-fit ​​structure (71).

2. The glove box outer cover plate inclined straight top injection mold according to claim 1, characterized in that, The straight push structure (31) includes a straight push rod (311) and a second top plate (312). The second top plate (312) moves along the mold opening and closing direction. The straight push rod (311) is used to push out the outer cover plate (7) of the glove box along the mold opening direction.

3. The glove box outer cover plate inclined straight top injection mold according to claim 2, characterized in that, The straight push rod (311) includes a plurality of first straight push rods (3111) and a plurality of second straight push rods (3115). One end of the plurality of first straight push rods (3111) is disposed on the second top plate (312), the second top plate (312) is located below the first top plate (321), and the other end of the plurality of first straight push rods (3111) abuts against the bottom surface of the glove box outer cover plate (7) near the buckle structure (71). One end of the plurality of second straight push rods (3115) is disposed on the second top plate (312), and the other end of the plurality of second straight push rods (3115) abuts against the bottom surface of the glove box outer cover plate (7) away from the buckle structure (71).

4. The glove box outer cover plate inclined straight top injection mold according to claim 3, characterized in that, The first straight push rod (3111) abuts against one end of the bottom surface of the glove box outer cover plate (7) and is also provided with a movable block (3112). The movable block (3112) has a flange (3113). When the mold is opened, the flange (3113) and the movable block (3112) together hold the side of the glove box outer cover plate (7) and restrict the movement of the glove box outer cover plate (7) along the width direction of the cavity (4).

5. The glove box outer cover plate inclined straight top injection mold according to claim 3, characterized in that, The first straight push rod (3111) is also provided with a drive groove (3114). The first straight push rod (3111) passes through the first top plate (321) through the drive groove (3114). The length direction of the drive groove (3114) is the same as the length direction of the first straight push rod (3111). When the first top plate (321) moves along the mold opening direction, the first top plate (321) can abut against the top wall of the drive groove (3114) when the second top plate (312) is not moving. The first straight push rod (3111) is thus driven to follow the first top plate (321) to move along the mold opening direction.

6. The glove box outer cover plate inclined straight top injection mold according to claim 3, characterized in that, It also includes a limiting component (5), which includes a limiting ring (51) and a stop (52). The limiting ring (51) is fixed on the inclined top column and the first straight top rod (3111). The stop (52) is set on the bottom surface of the lower mold (2). The stop (52) is located below the limiting ring (51). When the limiting ring (51) abuts against the stop (52), the top surface of the top block (323) and the straight top rod (311) is flush with the top surface of the lower mold (2).

7. The glove box outer cover plate inclined straight top injection mold according to claim 1, characterized in that, The inclined ejector rod (322) is mounted on the first top plate (321) via a sliding structure (324). The sliding structure (324) includes a base (3241) and a slider (3242). The base (3241) is mounted on the first top plate (321), and the slider (3242) slides on the base (3241) perpendicular to the mold opening direction. The inclined ejector rod (322) is mounted on the slider (3242).