Lampshade frame injection mold

Abstract

The utility model provides a lampshade frame injection mold. The lampshade frame injection mold comprises an upper mold base and a lower mold base, wherein the opposite surfaces of the upper mold base and the lower mold base are respectively provided with a mold core and a mold cavity; a first movable module is horizontally and slidably connected to the lower die base on one side of the cavity and used for carrying out hollowed-out forming on the side wall of a first connecting piece on a lampshade frame, and a first driving assembly is connected to the upper die base and used for driving the first movable module to be close to or away from the cavity. A second movable module, a third movable module, a fourth movable module, a fifth movable module and a sixth movable module are vertically and slidably connected to the lower die base at the bottom of the cavity and used for conducting hollowed-out forming on the side walls of a second connecting piece, a third connecting piece, a fourth connecting piece, a fifth connecting piece and a sixth connecting piece at the bottom of the lampshade frame. A second driving assembly is arranged in the lower die base and used for driving the second movable die block, the third movable die block, the fourth movable die block, the fifth movable die block and the sixth movable die block to synchronously stretch into or retreat from the cavity.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for a lampshade frame. Background Technology

[0002] The headlight cover frame is a plastic accessory on automotive headlights. It contains multiple connectors for mounting the headlight onto the vehicle. The headlight cover frame and these connectors are integrally injection molded using a mold. Most existing headlight cover frame connectors are cylindrical, and they are injection molded by the mating of the core of the upper mold and the cavity of the lower mold.

[0003] While these cylindrical lampshade frame connectors are easy to manufacture, their overall thickness is relatively large, resulting in material waste and shrinkage marks on their surface during the molding and cooling process. This severely affects the product's appearance and leads to a high defect rate. Therefore, designing a mold that can reduce material consumption and prevent shrinkage marks on the surface of the lampshade frame connectors has become an urgent problem to be solved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide an injection mold that can reduce the amount of material used and avoid shrinkage on the surface of the lampshade frame connector.

[0005] The technical solution of this utility model is to provide a lampshade frame injection mold with the following structure: It includes an upper mold base and a lower mold base, with a core and a cavity respectively provided on opposite sides of the upper and lower mold bases; a first moving module is horizontally slidably connected to the lower mold base on one side of the cavity, used for hollowing out the sidewall of the first connecting member on the lampshade frame; a first driving component is connected to the upper mold base, used to drive the first moving module closer to or away from the cavity; a second moving module, a third moving module, a fourth moving module, a fifth moving module, and a sixth moving module are vertically slidably connected to the lower mold base at the bottom of the cavity, used for hollowing out the sidewalls of the second, third, fourth, fifth, and sixth connecting members at the bottom of the lampshade frame; a second driving component is provided inside the lower mold base and is drively connected to the second, third, fourth, fifth, and sixth moving modules, used to drive the second, third, fourth, fifth, and sixth moving modules to simultaneously extend into or exit the cavity.

[0006] After adopting the above structure, the lampshade frame injection mold of this utility model has the following advantages compared with the prior art:

[0007] This invention features a first moving module, a second moving module, a third moving module, a fourth moving module, a fifth moving module, and a sixth moving module on the lower mold base. These modules are used to hollow out the sides of the first, second, third, fourth, fifth, and sixth connecting parts, respectively. After injection molding, a first driving component drives the first moving module away from the cavity, and then a second driving component drives the second, third, fourth, fifth, and sixth moving modules to simultaneously extend into the cavity, ejecting the lampshade frame from the cavity and completing demolding. The hollowed-out side of the lampshade frame connecting parts injection molded by this invention not only reduces material usage but also avoids surface shrinkage caused by excessive thickness of the connecting parts.

[0008] Preferably, the first driving component includes an inclined guide post, and the first moving module is provided with an inclined guide hole adapted to the inclined guide post. The inclined guide post is used to be inserted into the inclined guide hole. When the mold is opened or closed, the upper mold base will drive the inclined guide post to move vertically downward, thereby driving the first moving module away from or closer to the cavity through the inclined guide hole.

[0009] Preferably, the lower mold base is provided with a plurality of guide holes that correspond one-to-one with the second moving module, the third moving module, the fourth moving module, the fifth moving module and the sixth moving module and are connected to the cavity. The second moving module, the third moving module, the fourth moving module, the fifth moving module and the sixth moving module are slidably connected in the corresponding guide holes.

[0010] Preferably, there are multiple second drive components, each corresponding to a second, third, fourth, fifth, and sixth drive module; each second drive component includes a drive cylinder and a drive rod; one end of the drive rod is connected to the output end of the drive cylinder, and the other end is connected to the corresponding second, third, fourth, fifth, and sixth drive module.

[0011] Preferably, the guide hole is inclined away from the cavity, so that when the lampshade frame is ejected, the moving module is disengaged from the corresponding connector cutout area, facilitating demolding. Since the guide hole is inclined, and the driving cylinder is driven vertically upward, the driving rod will get stuck in the guide hole. Therefore, the output end of the driving cylinder is provided with a connecting seat, and the connecting seat is provided with a horizontally extending slide groove. The end of the driving rod connected to the driving cylinder is provided with a radial slider, and the radial slider is slidably connected in the slide groove. This allows the driving rod and the output end of the driving cylinder to be in a movable connection state, and when the driving cylinder pushes vertically upward, it can prevent the driving rod from getting stuck in the guide hole. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a partial structural schematic diagram of the present invention from a top view.

[0014] Figure 3 This is a schematic diagram of the structure of the lampshade frame in this utility model.

[0015] Figure 4 This is a partial structural schematic diagram of the present invention.

[0016] Figure 5 This is a schematic diagram of the drive rod and connecting seat in this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Lower mold base; 2. Cavity; 3. First moving module; 4. Lampshade frame; 5. First connector; 6. Second moving module; 7. Third moving module; 8. Fourth moving module; 9. Fifth moving module; 10. Sixth moving module; 11. Second connector; 12. Third connector; 13. Fourth connector; 14. Fifth connector; 15. Sixth connector; 16. Second drive assembly; 17. Angled guide post; 18. Angled guide hole; 19. Guide hole; 20. Drive rod; 21. Connecting seat; 22. Slide groove; 23. Radial slider. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. At the same time, the terms "first", "second", etc., are only used to distinguish the names of each component and do not have a primary or secondary relationship. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figures 1-5 As shown, this utility model discloses a lampshade frame injection mold: including an upper mold base (not shown in the figure) and a lower mold base 1, with a core and a cavity 2 respectively provided on the opposite sides of the upper mold base and the lower mold base 1.

[0022] A horizontal slide rail is provided on the lower mold base 1 on one side of the cavity 2. A first moving module 3 is slidably connected on the horizontal slide rail for hollowing out the side wall of the first connecting piece 5 on the lampshade frame 4. A first driving assembly is connected on the upper mold base. The first driving assembly includes an inclined guide post 17. The first moving module 3 is provided with an inclined guide hole 18 that is adapted to the inclined guide post 17. The inclined guide post 17 is used to be inserted into the inclined guide hole 18. When the mold is opened or closed, the upper mold base will drive the inclined guide post 17 to move vertically downward, and then drive the first moving module 3 away from or towards the cavity 2 along the horizontal slide rail through the inclined guide hole 18.

[0023] The lower mold base 1 at the bottom of the cavity 2 is vertically slidably connected with a second moving module 6, a third moving module 7, a fourth moving module 8, a fifth moving module 9, and a sixth moving module 10, which are used to hollow out the side walls of the second connecting piece 11, the third connecting piece 12, the fourth connecting piece 13, the fifth connecting piece 14, and the sixth connecting piece 15 at the bottom of the lampshade frame 4; the lower mold base 1 is provided with a second driving assembly 16, which is connected to the second moving module 6, the third moving module 7, the fourth moving module 8, the fifth moving module 9, and the sixth moving module 10, and is used to drive the second moving module 6, the third moving module 7, the fourth moving module 8, the fifth moving module 9, and the sixth moving module 10 to extend into or out of the cavity 2 simultaneously.

[0024] The lower mold base 1 is provided with multiple guide holes 19 that correspond one-to-one with the second moving module 6, the third moving module 7, the fourth moving module 8, the fifth moving module 9 and the sixth moving module 10 and are connected to the cavity 2. The second moving module 6, the third moving module 7, the fourth moving module 8, the fifth moving module 9 and the sixth moving module 10 are slidably connected in the corresponding guide holes 19.

[0025] There are multiple second drive components 16, each corresponding to a second drive module 6, a third drive module 7, a fourth drive module 8, a fifth drive module 9, and a sixth drive module 10. Each second drive component 16 includes a drive cylinder and a drive rod 20. One end of the drive rod 20 is connected to the output end of the drive cylinder, and the other end is connected to the corresponding second drive module 6, third drive module 7, fourth drive module 8, fifth drive module 9, and sixth drive module 10.

[0026] The guide hole 19 is inclined away from the cavity 2. This allows the moving modules (i.e., the first moving module 3, the second moving module 6, the third moving module 7, the fourth moving module 8, the fifth moving module 9, and the sixth moving module 10) to disengage from the hollowed-out areas of the corresponding connecting parts (i.e., the first connecting part 5, the second connecting part 11, the third connecting part 12, the fourth connecting part 13, the fifth connecting part 14, and the sixth connecting part 15) while the lampshade frame 4 is ejected, facilitating demolding. Since the guide hole 19 is inclined, and the driving cylinder is driven vertically upward, the driving rod 20 will get stuck in the guide hole 19. Therefore, this utility model provides a connecting seat 21 on the output end of the driving cylinder, and a horizontally extending slide groove 22 on the connecting seat 21. A radial slider 23 is provided at the end of the driving rod 20 that is connected to the driving cylinder. The radial slider 23 is slidably connected in the slide groove 22. This allows the driving rod 20 to be movably connected to the output end of the driving cylinder, preventing the driving rod 20 from getting stuck in the guide hole 19 when the driving cylinder is pushed vertically upward. In addition, the cavity 2 and the moving module of this utility model are both two sets and symmetrically arranged, so that the left and right lampshade frames can be injection molded at one time.

[0027] This invention features a first moving module 3, a second moving module 6, a third moving module 7, a fourth moving module 8, a fifth moving module 9, and a sixth moving module 10 on the lower mold base 1. These modules are used to hollow out the sides of the first connecting piece 5, the second connecting piece 11, the third connecting piece 12, the fourth connecting piece 13, the fifth connecting piece 14, and the sixth connecting piece 15, respectively. After injection molding, the first driving component drives the first moving module 3 away from the cavity 2. Then, the second driving component 16 drives the second moving module 6, the third moving module 7, the fourth moving module 8, the fifth moving module 9, and the sixth moving module 10 to simultaneously extend into the cavity 2, pushing the lampshade frame out of the cavity 2 and completing demolding. The side of the lampshade frame connector molded by this invention is hollowed out, which not only reduces the amount of material used but also avoids surface shrinkage caused by excessive thickness of the connector.

[0028] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A lampshade frame injection mold, comprising an upper mold base and a lower mold base (1), the upper mold base and the lower mold base (1) are respectively provided with a core and a cavity (2) on the opposite side; characterized in that: The lower die seat (1) on one side of the cavity (2) is horizontally slidably connected with a first movable die module (3) for hollowing the sidewall of a first connecting piece (5) on a lampshade frame (4), and the upper die seat is connected with a first driving assembly for driving the first movable die module (3) to approach or move away from the cavity (2); the lower die seat (1) at the bottom of the cavity (2) is vertically slidably connected with a second movable die module (6), a third movable die module (7), a fourth movable die module (8), a fifth movable die module (9) and a sixth movable die module (10) for hollowing the sidewall of a second connecting piece (11), a third connecting piece (12), a fourth connecting piece (13), a fifth connecting piece (14) and a sixth connecting piece (15) at the bottom of the lampshade frame (4); the lower die seat (1) is provided with a second driving assembly (16) and is in transmission connection with the second movable die module (6), the third movable die module (7), the fourth movable die module (8), the fifth movable die module (9) and the sixth movable die module (10) for driving the second movable die module (6), the third movable die module (7), the fourth movable die module (8), the fifth movable die module (9) and the sixth movable die module (10) to synchronously extend into or exit the cavity (2).

2. The lamp shade bezel injection mold of claim 1, wherein: The first driving assembly comprises an inclined guide column (17) arranged obliquely, the first movable die module (3) is provided with an inclined guide hole (18) matched with the inclined guide column (17), and the inclined guide column (17) is inserted into the inclined guide hole (18) for driving the first movable die module (3) to move away from or approach the cavity (2) when the mold is opened or closed.

3. The lamp shade bezel injection mold of claim 2, wherein: The lower die seat (1) is provided with a plurality of guide holes (19) corresponding to the second movable die module (6), the third movable die module (7), the fourth movable die module (8), the fifth movable die module (9) and the sixth movable die module (10) respectively and in communication with the cavity (2), and the second movable die module (6), the third movable die module (7), the fourth movable die module (8), the fifth movable die module (9) and the sixth movable die module (10) are slidably connected in the corresponding guide holes (19).

4. The lamp shade bezel injection mold of claim 3, wherein: The second driving assembly (16) is a plurality of and corresponds to the second movable die module (6), the third movable die module (7), the fourth movable die module ( 8), the fifth movable die module (9) and the sixth movable die module (10); each second driving assembly (16) comprises a driving cylinder and a driving rod (20); one end of the driving rod (20) is connected with the output end of the driving cylinder, and the other end is connected with the corresponding second movable die module (6), third movable die module (7), fourth movable die module (8), fifth movable die module (9) and sixth movable die module (10).

5. The lamp bezel injection mold of claim 4, wherein: The guide hole (19) is arranged obliquely away from the cavity (2); the output end of the driving cylinder is provided with a connecting seat (21), the connecting seat (21) is provided with a horizontally extending sliding groove (22), one end of the driving rod (20) connected with the driving cylinder is provided with a radial sliding block (23), and the radial sliding block (23) is slidably connected in the sliding groove (22).

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