Precision injection mold for large aspect ratio car taillight housing

Abstract

The utility model provides a precision injection mold for a rear taillight housing of an automobile with a large aspect ratio, and belongs to the field of mold technology. It includes an upper mold plate and a lower mold plate, two molding cavities are arranged between the upper mold plate and the lower mold plate, a rear core pulling assembly connected to the rear side of the molding cavity is arranged on the rear side of the lower mold plate, and a bottom insert driven by a shuttle slider driving assembly is also arranged at the bottom of the lower mold plate, and the bottom insert is arranged obliquely and the top end is connected to the front side of the bottom of the molding cavity. The bottom insert arranged obliquely can form an inclined bulb installation groove at the bottom of the automobile rear taillight housing product. After the product is injection molded, the shuttle slider driving assembly can drive the bottom insert to move obliquely downward to separate the bottom insert from the product, so that the product can be ejected from the lower mold plate, and there is no need to process the bulb installation groove later, which can effectively improve the production efficiency of the product.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a precision injection mold for a lamp housing of a rear tail lamp of an automobile with a large aspect ratio. Background Art

[0002] The lamp shell of the automobile tail light is generally formed by injection molding. When the lamp shell of the automobile tail light is produced, a bulb mounting groove needs to be formed at the bottom of the product. Since the groove angle of the bulb mounting groove is not in a perpendicular state with the product body, the product cannot be directly ejected by the ejection mechanism after injection molding, so that the mold in the prior art cannot directly injection mold the automobile tail light shell product with the bulb mounting groove. The bulb mounting groove needs to be processed later after the automobile tail light shell product is injection molded. This leads to the problem of low production efficiency during the production of the automobile tail light shell.

[0003] For example, a Chinese patent discloses a car rear taillight mold [application number: 202021231141.1], which includes a lamp holder mold and a lamp shell mold. A guide pin is fixedly installed on the end face of the lamp holder mold, and a guide hole is opened on the end face of the lamp shell mold. The surface of the guide pin is slidably inserted into the inner wall of the guide hole to connect the lamp holder mold and the lamp shell mold into one; the lamp holder mold is provided with a mounting mechanism; and the lamp shell mold is provided with a lighting control mechanism. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a precision injection mold for a lamp housing of a rear tail lamp of an automobile with a large aspect ratio.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A precision injection mold for a rear taillight housing of an automobile with a large aspect ratio, comprising an upper mold plate and a lower mold plate, two molding cavities are arranged between the upper mold plate and the lower mold plate, a rear core pulling assembly connected to the rear side of the molding cavity is arranged on the rear side of the lower mold plate, a bottom insert driven by a shuttle slider driving assembly is also arranged at the bottom of the lower mold plate, the bottom insert is arranged obliquely and the top end is connected to the front side of the bottom of the molding cavity, a No. 1 front core pulling assembly and two No. 2 front core pulling assemblies are also arranged on the front side of the molding cavity, and two outer core pulling assemblies are also arranged on the outer side of the molding cavity.

[0007] In the above-mentioned precision injection mold for the rear taillight housing of a car with a large aspect ratio, the shuttle slider driving assembly includes a shuttle slider horizontally inserted into the lower template from the rear side of the lower template and slidingly matched with the lower template, the front end of the shuttle slider is connected to the bottom insert through a front guide structure, and the rear side of the lower template is also provided with a vertical slider vertically arranged, the top of the vertical slider is fixedly connected to the upper template and the bottom is connected to the rear end of the shuttle slider through a rear guide structure.

[0008] In the above-mentioned precision injection mold for the rear taillight housing with a large aspect ratio, the front guide structure includes a front guide groove obliquely arranged on the inclined surface of the front end of the shuttle slider, and the bottom of the shuttle slider is fixedly connected to a front guide slider inserted into the front guide groove, and the cross-section of the front guide groove and the front guide slider is T-shaped.

[0009] In the above-mentioned precision injection mold for the rear taillight housing of a car with a large aspect ratio, the rear guide structure includes a rear guide groove obliquely arranged on the bottom inclined surface of the vertical slider, and the rear end of the shuttle slider is fixedly connected to a rear guide slider inserted into the rear guide groove, and the cross-section of the rear guide groove and the rear guide slider is T-shaped.

[0010] In the above-mentioned precision injection mold for the rear taillight housing of an automobile with a large aspect ratio, the rear core pulling assembly includes a rear insert that slides with the lower template, the inner end of the rear insert is connected to the rear side of the molding cavity, and the rear side of the lower template is also provided with a No. 1 linear drive connected to the outer end of the rear insert.

[0011] In the above-mentioned precision injection mold for the rear taillight housing of an automobile with a large aspect ratio, the No. 1 front side core pulling assembly includes a No. 1 front side insert arranged corresponding to the bottom insert, an insert slide groove is arranged on the lower template, the inner end of the No. 1 front side insert is connected to the front side of the molding cavity, and the front side of the lower template is also provided with a No. 2 linear drive that can drive the No. 1 front side insert to move horizontally in the insert slide groove.

[0012] In the above-mentioned precision injection mold for the rear taillight housing of an automobile with a large aspect ratio, the No. 2 front side core pulling assembly includes a No. 2 front side insert that slides with the lower mold plate, the inner end of the No. 2 front side insert is connected to the front side of the molding cavity, and the upper mold plate is provided with a No. 1 driving structure connected to the No. 2 front side insert.

[0013] In the above-mentioned precision injection mold for the rear taillight housing of a car with a large aspect ratio, the No. 1 driving structure includes a No. 1 driving rod obliquely fixed to the bottom of the upper mold plate, and the bottom of the No. 1 driving rod is inserted into the No. 2 front side insert.

[0014] In the above-mentioned precision injection mold for the rear taillight housing of an automobile with a large aspect ratio, the outer core pulling assembly includes an outer insert that slides with the lower mold plate, the inner end of the outer insert is connected to the outside of the molding cavity, and the upper mold plate is provided with a No. 2 drive structure connected to the outer insert.

[0015] In the above-mentioned precision injection mold for the rear taillight housing of an automobile with a large aspect ratio, the No. 2 driving structure includes a No. 2 driving rod obliquely fixed to the bottom of the upper mold plate, and the bottom of the No. 2 driving rod is inserted into the outer insert.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. The inclined bottom insert can form an inclined bulb mounting groove at the bottom of the automobile taillight housing product. After the product is injection molded, the shuttle slider driving assembly can drive the bottom insert to move obliquely downward to separate the bottom insert and the product, so that the product can be ejected from the lower template. There is no need to process the bulb mounting groove later, which can effectively improve the production efficiency of the product.

[0018] 2. After the product is injection molded, the rear core pulling assembly and the No. 1 front core pulling assembly can automatically pull the core. When the mold is opened, the No. 2 front core pulling assembly and the outer core pulling assembly can automatically pull the core while the upper mold plate moves upward.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0021] Figure 2 It is a structural diagram of the lower template;

[0022] Figure 3 It is a schematic diagram of the local structure of the lower template;

[0023] Figure 4 It is a structural schematic diagram of the shuttle slider drive assembly.

[0024] In the figure, the upper template 1, the lower template 2, the molding cavity 3, the rear side core pulling assembly 4, the shuttle slider drive assembly 5, the bottom insert 6, the No. 1 front side core pulling assembly 7, the No. 2 front side core pulling assembly 8, the outer side core pulling assembly 9, the shuttle slider 10, the vertical slider 11, the front guide slot 12, the front guide slider 13, the rear guide slot 14, the rear guide slider 15, the rear side insert 16, the No. 1 linear drive 17, the No. 1 front side insert 18, the No. 2 linear drive 19, the No. 2 front side insert 20, the No. 1 driving rod 21, the outer insert 22, and the No. 2 driving rod 23. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 4As shown, a precision injection mold for a rear taillight housing of an automobile with a large aspect ratio comprises an upper mold plate 1 and a lower mold plate 2, two molding cavities 3 are arranged between the upper mold plate 1 and the lower mold plate 2, a rear side core pulling assembly 4 connected to the rear side of the molding cavity 3 is arranged on the rear side of the lower mold plate 2, a bottom insert 6 driven by a shuttle slider driving assembly 5 is also arranged at the bottom of the lower mold plate 2, the bottom insert 6 is inclined and the top end is connected to the front side of the bottom of the molding cavity 3, a No. 1 front side core pulling assembly 7 and two No. 2 front side core pulling assemblies 8 are also arranged on the front side of the molding cavity 3, and two outer side core pulling assemblies 9 are also arranged on the outer side of the molding cavity 3.

[0026] In the utility model, the bottom insert 6 arranged obliquely can form an inclined bulb installation groove at the bottom of the automobile taillight housing product. After the product is injection molded, the bottom insert 6 can be driven by the shuttle slider driving assembly 5 to move obliquely downward to separate the bottom insert from the product, so that the product can be ejected from the lower template without the need to process the bulb installation groove later, which can effectively improve the production efficiency of the product.

[0027] Secondly, after the product is injection molded, the rear core pulling assembly 4 and the No. 1 front core pulling assembly 7 can automatically pull the core. When the mold is opened, the No. 2 front core pulling assembly 8 and the outer core pulling assembly 9 can automatically pull the core while the upper mold plate moves upward.

[0028] Specifically, the shuttle slider driving assembly 5 includes a shuttle slider 10 horizontally inserted into the lower template 2 from the rear side of the lower template 2 and slidingly matched with the lower template 2. The front end of the shuttle slider 10 is connected to the bottom insert 6 through the front guide structure. The rear side of the lower template 2 is also provided with a vertical slider 11 arranged vertically. The top of the vertical slider 11 is fixedly connected to the upper template 1 and the bottom is connected to the rear end of the shuttle slider 10 through the rear guide structure. The upward movement of the upper template can drive the vertical slider 11 to move vertically upward. The upward movement of the vertical slider can drive the rear guide structure to drive the shuttle slider 10 to move horizontally to the rear side of the lower template. The movement of the shuttle slider 10 can drive the bottom insert 6 to move obliquely downward to disengage the bottom insert and the light bulb mounting groove of the product, so as to facilitate the ejection of the product.

[0029] Specifically, the front guide structure includes a front guide slot 12 obliquely arranged on the front inclined surface of the shuttle slider 10, and a front guide slider 13 inserted into the front guide slot 12 is fixedly connected to the bottom of the shuttle slider 10, and the cross-sections of the front guide slot 12 and the front guide slider 13 are T-shaped. The upward movement of the vertical slider can drive the shuttle slider 10 to move horizontally toward the rear side of the lower template through the cooperation of the front guide slider 13 and the front guide slot 12.

[0030] Specifically, the rear guide structure includes a rear guide slot 14 obliquely arranged on the bottom inclined surface of the vertical slider 11, and a rear guide slider 15 inserted into the rear guide slot 14 is fixedly connected to the rear end of the shuttle slider 10, and the cross-sections of the rear guide slot 14 and the rear guide slider 15 are T-shaped. The shuttle slider 10 moves horizontally toward the rear side of the lower template, and the cooperation of the rear guide slider 15 and the rear guide slot 14 can drive the bottom insert to move obliquely downward.

[0031] Specifically, the rear core pulling assembly 4 includes a rear insert 16 that is slidably matched with the lower mold plate 2, the inner end of the rear insert 16 is connected to the rear side of the molding cavity 3, and the rear side of the lower mold plate 2 is also provided with a No. 1 linear drive 17 connected to the outer end of the rear insert 16. After the product is injection molded, the No. 1 linear drive can drive the rear insert 16 to move horizontally away from the molding cavity so that the rear insert can be separated from the product.

[0032] Those skilled in the art should understand that the first linear drive may be an oil cylinder, an air cylinder or a linear motor, etc.

[0033] Specifically, the No. 1 front side core pulling assembly 7 includes a No. 1 front side insert 18 corresponding to the bottom insert 6, an insert chute is provided on the lower template 2, the inner end of the No. 1 front side insert 18 is connected to the front side of the molding cavity 3, and the front side of the lower template 2 is also provided with a No. 2 linear driver 19 that can drive the No. 1 front side insert 18 to move horizontally in the insert chute. After the product is injection molded, the No. 2 linear driver 19 can drive the No. 1 front side insert 18 to move horizontally in the insert chute away from the molding cavity so that the No. 1 front side insert can be separated from the product.

[0034] Those skilled in the art should understand that the second linear drive may be an oil cylinder, an air cylinder or a linear motor, etc.

[0035] Specifically, the No. 2 front side core pulling assembly 8 includes a No. 2 front side insert 20 that is slidably matched with the lower template 2, the inner end of the No. 2 front side insert 20 is connected to the front side of the molding cavity 3, and the upper template 1 is provided with a No. 1 driving structure connected to the No. 2 front side insert 20, and the No. 1 driving structure includes a No. 1 driving rod 21 that is obliquely fixed to the bottom of the upper template 1, and the bottom of the No. 1 driving rod 21 is inserted into the No. 2 front side insert 20. When the mold is opened, the upper template moves upward to drive the No. 1 driving rod to move vertically upward, and the No. 1 driving rod moves vertically upward to drive the No. 2 front side insert 20 to move horizontally away from the molding cavity, so that the No. 2 front side insert can be separated from the product.

[0036] Specifically, the outer core pulling assembly 9 includes an outer insert 22 that is slidably matched with the lower mold plate 2, the inner end of the outer insert 22 is connected to the outer side of the molding cavity 3, and the upper mold plate 1 is provided with a No. 2 driving structure connected to the outer insert 22, the No. 2 driving structure includes a No. 2 driving rod 23 that is tilted and fixed at the bottom of the upper mold plate 1, and the bottom of the No. 2 driving rod 23 is inserted into the outer insert 22. When the mold is opened, the upper mold plate moves upward to drive the No. 2 driving rod to move vertically upward, and the No. 2 driving rod moves upward to drive the outer insert to move horizontally away from the molding cavity, so that the outer insert 22 can be separated from the product.

[0037] The working principle of the utility model is as follows: the bottom insert block 6 which is set obliquely can form an inclined bulb installation groove at the bottom of the automobile taillight housing product. After the product is injection molded, the bottom insert block 6 can be driven by the shuttle slider driving component 5 to move obliquely downward to separate the bottom insert block and the product, so that the product can be ejected from the lower template, without the need to process the bulb installation groove later, which can effectively improve the production efficiency of the product. After the product is injection molded, the rear core pulling component 4 and the No. 1 front core pulling component 7 can automatically pull the core. When the mold is opened, the No. 2 front core pulling component 8 and the outer core pulling component 9 can automatically pull the core while the upper template moves upward.

[0038] The upper template moves upward to drive the vertical slider 11 to move vertically upward, and the vertical slider moves upward to drive the rear guide structure to drive the shuttle slider 10 to move horizontally toward the rear side of the lower template. The movement of the shuttle slider 10 can drive the bottom insert 6 to move obliquely downward to disengage the bottom insert from the bulb installation groove of the product, so as to facilitate the ejection of the product. The vertical slider moves upward to drive the shuttle slider 10 to move horizontally toward the rear side of the lower template through the cooperation of the front guide slider 13 and the front guide slot 12. The shuttle slider 10 moves horizontally toward the rear side of the lower template and can drive the bottom insert to move obliquely downward through the cooperation of the rear guide slider 15 and the rear guide slot 14.

[0039] After the product is injection molded, the No. 1 linear driver can drive the rear side insert 16 to move horizontally away from the molding cavity so that the rear side insert can be separated from the product. After the product is injection molded, the No. 2 linear driver 19 can drive the No. 1 front side insert 18 to move horizontally away from the molding cavity in the insert slide groove so that the No. 1 front side insert can be separated from the product. When the mold is opened, the upward movement of the upper template can drive the No. 1 drive rod to move vertically upward, and the vertical upward movement of the No. 1 drive rod can drive the No. 2 front side insert 20 to move horizontally away from the molding cavity so that the No. 2 front side insert can be separated from the product. When the mold is opened, the upward movement of the upper template can drive the No. 2 drive rod to move vertically upward, and the upward movement of the No. 2 drive rod can drive the outer side insert to move horizontally away from the molding cavity so that the outer side insert 22 can be separated from the product.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although this article uses the upper template 1, the lower template 2, the molding cavity 3, the rear core pulling assembly 4, the shuttle slider drive assembly 5, the bottom insert 6, the No. 1 front core pulling assembly 7, the No. 2 front core pulling assembly 8, the outer core pulling assembly 9, the shuttle slider 10, the vertical slider 11, the front guide slot 12, the front guide slider 13, the rear guide slot 14, the rear guide slider 15, the rear insert 16, the No. 1 linear drive 17, the No. 1 front insert 18, the No. 2 linear drive 19, the No. 2 front insert 20, the No. 1 drive rod 21, the outer insert 22, the No. 2 drive rod 23, etc., these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A precision injection mold for a lamp housing of a rear tail lamp of an automobile with a large aspect ratio, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: Two molding cavities (3) are arranged between the upper mold plate (1) and the lower mold plate (2); a rear core pulling assembly (4) connected to the rear side of the molding cavity (3) is arranged on the rear side of the lower mold plate (2); a bottom insert (6) driven by a shuttle slider driving assembly (5) is also arranged at the bottom of the lower mold plate (2); the bottom insert (6) is arranged obliquely and the top end is connected to the front side of the bottom of the molding cavity (3); a No. 1 front core pulling assembly (7) and two No. 2 front core pulling assemblies (8) are also arranged on the front side of the molding cavity (3); and two outer core pulling assemblies (9) are also arranged on the outer side of the molding cavity (3).

2. The high aspect ratio automobile tail lamp housing precision injection mold according to claim 1 is characterized in that: The shuttle slider driving assembly (5) includes a shuttle slider (10) which is horizontally inserted into the lower template (2) from the rear side of the lower template (2) and slidably cooperates with the lower template (2). The front end of the shuttle slider (10) is connected to the bottom insert (6) through a front guide structure. The rear side of the lower template (2) is also provided with a vertical slider (11) which is vertically arranged. The top of the vertical slider (11) is fixedly connected to the upper template (1) and the bottom is connected to the rear end of the shuttle slider (10) through a rear guide structure.

3. The high aspect ratio automobile tail lamp housing precision injection mold according to claim 2 is characterized in that: The front guide structure comprises a front guide slot (12) obliquely arranged on the front end inclined surface of the shuttle slider (10); a front guide slider (13) is fixedly connected to the bottom of the shuttle slider (10) and inserted into the front guide slot (12); and the cross-sections of the front guide slot (12) and the front guide slider (13) are T-shaped.

4. The high aspect ratio automobile tail lamp housing precision injection mold according to claim 2 is characterized in that: The rear guide structure comprises a rear guide groove (14) obliquely arranged on the bottom inclined surface of the vertical slider (11); the rear end of the shuttle slider (10) is fixedly connected with a rear guide slider (15) inserted into the rear guide groove (14); and the cross-sections of the rear guide groove (14) and the rear guide slider (15) are T-shaped.

5. The high aspect ratio automobile tail lamp housing precision injection mold according to claim 2 is characterized in that: The rear core pulling assembly (4) includes a rear insert (16) that is slidably matched with the lower template (2), the inner end of the rear insert (16) is connected to the rear side of the molding cavity (3), and the rear side of the lower template (2) is also provided with a linear drive (17) connected to the outer end of the rear insert (16).

6. The high aspect ratio automobile tail lamp housing precision injection mold according to claim 2 is characterized in that: The No. 1 front side core pulling assembly (7) includes a No. 1 front side insert (18) arranged corresponding to the bottom insert (6), the lower template (2) is provided with an insert slide groove, the inner end of the No. 1 front side insert (18) is connected to the front side of the molding cavity (3), and the front side of the lower template (2) is also provided with a No. 2 linear driver (19) that can drive the No. 1 front side insert (18) to move horizontally in the insert slide groove.

7. The high aspect ratio automobile tail lamp housing precision injection mold according to claim 2, characterized in that: The No. 2 front side core pulling assembly (8) comprises a No. 2 front side insert (20) which is slidably matched with the lower template (2), the inner end of the No. 2 front side insert (20) is connected to the front side of the molding cavity (3), and the upper template (1) is provided with a No. 1 driving structure which is connected to the No. 2 front side insert (20).

8. The high aspect ratio automobile tail lamp housing precision injection mold according to claim 7, characterized in that: The No. 1 driving structure comprises a No. 1 driving rod (21) which is obliquely fixed to the bottom of the upper template (1), and the bottom of the No. 1 driving rod (21) is inserted into the No. 2 front side insert (20).

9. The high aspect ratio automobile tail lamp housing precision injection mold according to claim 2, characterized in that: The outer core pulling assembly (9) includes an outer insert (22) that is slidably matched with the lower template (2), the inner end of the outer insert (22) is connected to the outside of the molding cavity (3), and the upper template (1) is provided with a second drive structure connected to the outer insert (22).

10. The high aspect ratio automobile tail lamp housing precision injection mold according to claim 9, characterized in that: The No. 2 driving structure comprises a No. 2 driving rod (23) which is obliquely fixed to the bottom of the upper template (1), and the bottom of the No. 2 driving rod (23) is inserted into the outer insert (22).

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