Injection mold for automobile ceiling lamp surface cover

Abstract

The utility model relates to the technical field of injection molding, and discloses an automobile ceiling lamp surface cover injection mold, which comprises a lower mold, a quick demolding mechanism is arranged on the inner wall of the lower mold, the quick demolding mechanism comprises a U-shaped rod, the outer wall of the U-shaped rod is in sliding connection with the inner wall of the lower mold, the top end of the U-shaped rod is fixedly connected with an ejection block, and the ejection block is fixedly connected with the lower mold. And the outer wall of the ejection block is slidably connected with the inner wall of the lower mold, the outer wall of the U-shaped rod is fixedly connected with a stop block B, the outer wall of the U-shaped rod penetrates through and is slidably connected with a sliding block, and the bottom end of the sliding block is in contact connection with the top end of the stop block B. According to the utility model, the rapid demolding mechanism is arranged, so that the opening and closing time of the mold is reduced, the injection molding period is shortened, the production efficiency is improved, the staying time of a product in the mold is shortened, the accumulation of thermal stress is reduced, and the deformation risk of the product is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection mold for an automobile roof lamp face cover. Background Technique

[0002] Usually, when producing the lamp shade panel on the top of an automobile, an injection mold for an automobile roof lamp face cover is needed. By injecting molten plastic material into the mold cavity and applying pressure, a product with the required shape is formed inside the mold.

[0003] After retrieval, Chinese Patent Publication No.: CN219445999U discloses an injection mold for an automobile roof lamp face cover, including an injection device. The injection device includes an upper mold, a lower mold, a support plate, a driving cylinder and a support rod. By setting a transmission rack, a first gear, a second gear and a driving device, it is convenient to make the ejector rod extend downward while lifting the upper mold, facilitating the demolding of the injection molded part adhered to the upper mold. By setting the adjusting block to slide in the adjusting groove, it is convenient to adjust the lifting height of the lifting rod, and then facilitate the demolding of the injection molded part adhered to the lower mold.

[0004] However, considering that during the demolding process of this device, it is necessary to rotate the handwheel and adjust the screw rod multiple times to drive the lifting rod to demold the injection molded part, which is relatively laborious and requires multiple rotations, resulting in a relatively long time consumption during demolding, thus reducing the work efficiency. Therefore, an injection mold for an automobile roof lamp face cover is proposed to solve the above problems. Content of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides an injection mold for an automobile roof lamp face cover, aiming to improve the problem that in the prior art, during the demolding process, it is necessary to rotate the handwheel and adjust the screw rod multiple times to drive the lifting rod to demold the injection molded part, which is relatively laborious and requires multiple rotations, resulting in a relatively long time consumption during demolding, thus reducing the work efficiency.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an injection mold for an automobile roof lamp face cover, including a lower mold, wherein a quick demolding mechanism is arranged on the inner wall of the lower mold. The quick demolding mechanism includes a U-shaped rod, the outer wall of the U-shaped rod is slidably connected with the inner wall of the lower mold, the top end of the U-shaped rod is fixedly connected with an ejecting block, the outer wall of the ejecting block is slidably connected with the inner wall of the lower mold, a blocking block B is fixedly connected to the outer wall of the U-shaped rod, the outer wall of the U-shaped rod penetrates and is slidably connected with a sliding block, the bottom end of the sliding block is in contact connection with the top end of the blocking block B, a blocking block A is fixedly connected to the top end of the U-shaped rod, and the bottom end of the blocking block A is in contact connection with the top end of the sliding block.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the sliding block is fixedly connected with an upper mold, the outer wall of the upper mold is fixedly connected with a rod body, the outer wall of the rod body is inserted into the inner wall of the lower mold, the inner wall of the lower mold is elastically connected with an inclined block through a spring, the outer wall of the inclined block is slidably connected with the inner wall of the lower mold, the outer wall of the inclined block is fixedly connected with a moving block, and the outer wall of the moving block is slidably connected with the inner wall of the lower mold.

[0009] As a further description of the above technical solution:

[0010] The top end of the lower mold is fixedly connected with a shaping mold, and the inner wall of the shaping mold is slidably connected with the outer wall of the ejector block.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the lower mold is fixedly connected with a support plate, the inner wall of the support plate is rotatably connected with a threaded rod, the top end of the support plate is fixedly connected with a motor, and the output end of the motor is fixedly connected with the top end of the threaded rod.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the threaded rod penetrates through and is threadedly connected with a fixing block, the outer wall of the fixing block is fixedly connected with the outer wall of the upper mold, the outer wall of the upper mold is fixedly connected with a positioning block, and the outer wall of the positioning block is slidably connected with the inner wall of the support plate.

[0015] As a further description of the above technical solution:

[0016] One end of the spring is fixedly connected to the inside of the lower mold, and the other end of the spring is connected to the inclined block.

[0017] As a further description of the above technical solution:

[0018] An injection hole is provided at the top end of the upper mold.

[0019] As a further description of the above technical solution:

[0020] There are two sets of both the blocking block A and the blocking block B.

[0021] The present utility model has the following beneficial effects:

[0022] 1. In the present utility model, by providing a quick demolding mechanism, the time for mold opening and closing is reduced, thereby shortening the injection molding cycle, improving production efficiency, and reducing the residence time of the product in the mold, reducing the accumulation of thermal stress, and thus reducing the risk of product deformation.

[0023] 2. In the present utility model, the upper mold is fixed by using an inclined block, enabling it to quickly fix the upper mold and the lower mold, and allowing for faster fixing during mold change, reducing the mold change time, thereby improving production efficiency. Description of the Drawings

[0024] Figure 1 It is a front view structural schematic diagram of an injection mold for an automotive roof light cover proposed by the present utility model;

[0025] Figure 2 It is a structural schematic diagram of the rising of the upper mold of an injection mold for an automotive roof light cover proposed by the present utility model;

[0026] Figure 3 It is a cross-sectional view structural schematic diagram of the upper mold of an injection mold for an automotive roof light cover proposed by the present utility model;

[0027] Figure 4 It is a cross-sectional view structural schematic diagram of the inclined block of an injection mold for an automotive roof light cover proposed by the present utility model;

[0028] Figure 5 It is a rear view structural schematic diagram of an injection mold for an automotive roof light cover proposed by the present utility model.

[0029] Legend Explanation:

[0030] 1. Lower mold; 2. Upper mold; 3. Injection hole; 4. U-shaped rod; 5. Block A; 6. Block B; 7. Sliding block; 8. Rod body; 9. Plastic mold; 10. Ejector block; 11. Moving block; 12. Spring; 13. Inclined block; 14. Threaded rod; 15. Motor; 16. Support plate. Detailed Embodiment

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figures 1 - 3 , Figure 5, An embodiment provided by the present utility model: An injection mold for the roof lamp face cover of an automobile, including a lower mold 1. A rapid demolding mechanism is provided on the inner wall of the lower mold 1. The rapid demolding mechanism includes a U-shaped rod 4. The outer wall of the U-shaped rod 4 is slidably connected to the inner wall of the lower mold 1. By the sliding connection between the outer wall of the U-shaped rod 4 and the inner wall of the lower mold 1, the U-shaped rod 4 can move vertically along the inner wall of the lower mold 1. The top end of the U-shaped rod 4 is fixedly connected with an ejector block 10. By the top end of the U-shaped rod 4 being fixedly connected with the ejector block 10, when the U-shaped rod 4 moves vertically, it can drive the ejector block 10 to move together. The outer wall of the ejector block 10 is slidably connected to the inner wall of the lower mold 1. By the sliding connection between the outer wall of the ejector block 10 and the inner wall of the lower mold 1, the ejector block 10 can move vertically along the inner wall of the lower mold 1. The outer wall of the U-shaped rod 4 is fixedly connected with a blocking block B6. By fixedly connecting the blocking block B6 to the outer wall of the U-shaped rod 4, when the U-shaped rod 4 moves vertically, it can drive the blocking block B6 to move together. The outer wall of the U-shaped rod 4 penetrates and is slidably connected with a sliding block 7. By the outer wall of the U-shaped rod 4 penetrating and slidably connecting with the sliding block 7, the sliding block 7 can move vertically along the outer wall of the U-shaped rod 4. The bottom end of the sliding block 7 is in contact connection with the top end of the blocking block B6. By the bottom end of the sliding block 7 being in contact connection with the top end of the blocking block B6, the sliding block 7 can cause a downward pressure on the blocking block B6, so that when the sliding block 7 presses down the blocking block B6, the U-shaped rod 4 will not move upward. The top end of the U-shaped rod 4 is fixedly connected with a blocking block A5. By fixedly connecting the blocking block A5 to the top end of the U-shaped rod 4, when the blocking block A5 moves vertically, it can drive the U-shaped rod 4 to move together. The bottom end of the blocking block A5 is in contact connection with the top end of the sliding block 7. By the bottom end of the blocking block A5 being in contact connection with the top end of the sliding block 7, when the sliding block 7 moves upward, it will drive the U-shaped rod 4 to move together due to the contact connection with the bottom end of the blocking block A5.

[0033] Refer to Figures 1 - 2 , Figures 4 - 5, the outer wall of the sliding block 7 is fixedly connected to the upper mold 2. By fixedly connecting the upper mold 2 to the outer wall of the sliding block 7, when the upper mold 2 moves vertically, it can drive the sliding block 7 to move together. The outer wall of the upper mold 2 is fixedly connected to a rod 8. By fixedly connecting the rod 8 to the outer wall of the upper mold 2, when the upper mold 2 moves vertically, it can drive the rod 8 to move together. The outer wall of the rod 8 is inserted into the inner wall of the lower mold 1. By inserting the outer wall of the rod 8 into the inner wall of the lower mold 1, the upper mold 2 can be inserted into the lower mold 1 through the rod 8. The inner wall of the lower mold 1 is elastically connected to an inclined block 13 by a spring 12. Due to the elastic force of the spring 12, the inclined block 13 can always maintain the effect of moving towards the outer wall without being affected by external forces. The outer wall of the inclined block 13 is slidably connected to the inner wall of the lower mold 1. By slidably connecting the outer wall of the inclined block 13 to the inner wall of the lower mold 1, the inclined block 13 can move horizontally along the inner wall of the lower mold 1. The outer wall of the inclined block 13 is fixedly connected to a moving block 11. By fixedly connecting the moving block 11 to the outer wall of the inclined block 13, when the moving block 11 moves horizontally, it can drive the inclined block 13 to move together. The outer wall of the moving block 11 is slidably connected to the inner wall of the lower mold 1. By slidably connecting the outer wall of the moving block 11 to the inner wall of the lower mold 1, the moving block 11 can move horizontally along the inner wall of the lower mold 1.

[0034] Refer to Figures 2 - 3 , the top end of the lower mold 1 is fixedly connected to a shaping mold 9. By providing a fixed support for the shaping mold 9 at the top end of the lower mold 1, and having the effect of shaping the melted plastic into a finished product. The inner wall of the shaping mold 9 is slidably connected to the outer wall of the ejector block 10. By slidably connecting the inner wall of the shaping mold 9 to the outer wall of the ejector block 10, the ejector block 10 can move vertically along the inner wall of the shaping mold 9.

[0035] Refer to Figures 1 - 2 , Figure 5 , the outer wall of the lower mold 1 is fixedly connected to a support plate 16. By providing a fixed support for the support plate 16 at the outer wall of the lower mold 1, the inner wall of the support plate 16 is rotatably connected to a threaded rod 14. By rotatably connecting the threaded rod 14 to the inner wall of the support plate 16, the threaded rod 14 can rotate along the inner wall of the support plate 16. The top end of the support plate 16 is fixedly connected to a motor 15. By providing a fixed support for the motor 15 at the top end of the support plate 16, the output end of the motor 15 is fixedly connected to the top end of the threaded rod 14. By fixedly connecting the output end of the motor 15 to the top end of the threaded rod 14, the motor 15 can drive the threaded rod 14 to rotate together.

[0036] Refer to Figure 5, a fixing block 18 penetrates and is threadedly connected to the outer wall of the threaded rod 14. By the outer wall of the threaded rod 14 penetrating and being threadedly connected to the fixing block 18, when the threaded rod 14 rotates, it can drive the fixing block 18 to move together. The outer wall of the fixing block 18 is fixedly connected to the outer wall of the upper mold 2. By the outer wall of the fixing block 18 being fixedly connected to the outer wall of the upper mold 2, when the fixing block 18 moves vertically, it can drive the upper mold 2 to move together. The outer wall of the upper mold 2 is fixedly connected to a positioning block 17. By the outer wall of the upper mold 2 being fixedly connected to the positioning block 17, when the upper mold 2 moves vertically, it can drive the positioning block 17 to move together. The outer wall of the positioning block 17 is slidably connected to the inner wall of the support plate 16. By the outer wall of the positioning block 17 being slidably connected to the inner wall of the support plate 16, the positioning block 17 can drive the upper mold 2 to always move vertically along the inner wall of the support plate 16.

[0037] Refer to Figures 1 - 5 , one end of the spring 12 is fixedly connected to the inside of the lower mold 1, and the other end of the spring 12 is connected to the inclined block 13. Due to the elastic force of the spring 12, when the rod body 8 is inserted into the lower mold 1, the inclined block 13 will move inwards due to the extrusion of the inclined surface, enabling the rod body 8 to continue moving downwards. When it moves to the designated position, the inclined block 13 will be clamped with the rod body 8 due to the elastic force of the spring 12. An injection hole 3 is opened at the top of the upper mold 2. By opening the injection hole 3 at the top of the upper mold 2, molten plastic can be injected into the mold. There are two sets of both the blocking block A5 and the blocking block B6. By having two sets of the blocking block A5 and the blocking block B6, it can achieve a more stable effect when rising.

[0038] Working principle: When using the device, first inject the molten plastic into the mold through the injection hole 3. After the face cover in the mold is cooled, first pull the moving block 11 outwards to drive the inclined block 13 to move inwards and release the fixation between the upper mold 2 and the lower mold 1. Then start the motor 15 to drive the upper mold 2 to rise. When the upper mold 2 rises, the blocking block A5 at the top of the rod body 8 is lifted by the top of the sliding block 7 on both sides of the upper mold 2, driving the ejector block 10 to move upwards, so that the ejector block 10 ejects the face cover in the lower mold 1, thus achieving the effect of demoulding. Then the worker takes out the processed face cover.

[0039] When performing the next round of processing, first start the motor 15 to drive the upper mold 2 to descend, and at the same time drive the rod body 8 to be inserted into the lower mold 1. Then the inclined block 13 will move inwards due to the extrusion of the inclined surface, so that the rod body 8 can continue to move downwards. When the upper mold 2 is in contact with the lower mold 1, the inclined block 13 will move outwards due to the elastic force of the spring 12 and be clamped with the rod body 8, thus achieving the effect of fixing the upper mold 2 and the lower mold 1. Then inject the molten plastic into the mold through the injection hole 3 again, and then repeat the above operations for the next round of processing.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An injection mold for a car ceiling light cover, comprising a lower mold (1), characterized in that: The inner wall of the lower mold (1) is provided with a quick demoulding mechanism, and the quick demoulding mechanism comprises a U-shaped rod (4), the outer wall of the U-shaped rod (4) is slidably connected to the inner wall of the lower mold (1), the top of the U-shaped rod (4) is fixedly connected to an ejection block (10), the outer wall of the ejection block (10) is slidably connected to the inner wall of the lower mold (1), the outer wall of the U-shaped rod (4) is fixedly connected to a blocking block B (6), the outer wall of the U-shaped rod (4) penetrates and is slidably connected to a sliding block (7), the bottom end of the sliding block (7) is in contact with the top end of the blocking block B (6), and the top of the U-shaped rod (4) is fixedly connected to a blocking block A (5), the bottom end of the blocking block A (5) is in contact with the top end of the sliding block (7).

2. The automobile ceiling light cover injection mold according to claim 1, characterized in that: The outer wall of the sliding block (7) is fixedly connected to the upper mold (2), the outer wall of the upper mold (2) is fixedly connected to the rod body (8), the outer wall of the rod body (8) is plugged into the inner wall of the lower mold (1), the inner wall of the lower mold (1) is elastically connected to the inclined block (13) through a spring (12), the outer wall of the inclined block (13) is slidably connected to the inner wall of the lower mold (1), the outer wall of the inclined block (13) is fixedly connected to the moving block (11), and the outer wall of the moving block (11) is slidably connected to the inner wall of the lower mold (1).

3. The automobile ceiling light cover injection mold according to claim 1, characterized in that: The top end of the outer wall of the lower mold (1) is fixedly connected to a molding mold (9), and the outer surface of the ejection block (10) is slidably connected to the inner wall of the molding mold (9).

4. The automobile ceiling light cover injection mold according to claim 1, characterized in that: The outer wall of the lower mold (1) is fixedly connected to a support plate (16), the inner wall of the support plate (16) is rotatably connected to a threaded rod (14), the top end of the support plate (16) is fixedly connected to a motor (15), and the output end of the motor (15) is fixedly connected to the top end of the threaded rod (14).

5. The automobile ceiling light cover injection mold according to claim 4, characterized in that: A fixing block (18) passes through and is threadedly connected to the outer wall of the threaded rod (14); the outer wall of the fixing block (18) is fixedly connected to the outer wall of the upper mold (2); the outer wall of the upper mold (2) is fixedly connected to a positioning block (17); and the outer wall of the positioning block (17) is slidably connected to the inner wall of the support plate (16).

6. The automobile ceiling light cover injection mold according to claim 2, characterized in that: One end of the spring (12) is fixedly connected to the inner wall of the lower mold (1), and the other end of the spring (12) is fixedly connected to the right side of the outer wall of the inclined block (13).

7. The automobile ceiling light cover injection mold according to claim 2, characterized in that: An injection hole (3) is provided at the top of the upper mold (2).

8. The automobile ceiling light cover injection mold according to claim 1, characterized in that: The blocking blocks A (5) and the blocking blocks B (6) are each provided in two groups.

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