Precise forming die for light guide strip of automobile tail lamp

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a precise forming mold for a light guide strip of an automobile tail lamp. The injection mold comprises an upper mold plate, a connecting block assembly is arranged below the upper mold plate, an upper mold base is arranged below the connecting block assembly, an upper mold core block is arranged inside the lower portion of the upper mold base, a lower mold core block is arranged inside the upper portion of the lower mold base, an injection molding opening assembly is inserted into the middle of the upper mold plate, and a supporting block and the lower mold plate are arranged below the lower mold base. A top plate assembly is arranged above the lower die plate, meanwhile, a top column and a top piece column assembly are arranged above the top plate assembly, the top column and the top piece column assembly which are arranged below the die are matched, so that a product piece is rapidly and completely separated from an inner cavity, the piece clamping condition is prevented, deformation of a light guide strip is avoided, and the production cost and the workload are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and relates to a precision forming mold for an automobile tail light light guide strip. Background Technique

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a variety of flower patterns and colors, shapes that can range from simple to complex, sizes that can range from large to small, precise product dimensions, easy product replacement, and the ability to form complex parts. Injection molding is suitable for mass production and forming processing fields of complex-shaped products. The existing automobile tail light light guide strips are long and irregular in shape, and when injection molding is carried out, they will be embedded inside the mold, making it easy for the light guide strips to get stuck when the mold is opened, resulting in deformation and unqualified products of the light guide strips, increasing production costs and workload. Therefore, a precision forming mold for an automobile tail light light guide strip is proposed for the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a precision forming mold for an automobile tail light light guide strip for the above problems.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A precision forming mold for an automobile tail light light guide strip includes an upper template. A connection block assembly is provided below the upper template, and a top die base is provided below the connection block assembly. A bottom die base is provided below the top die base. An upper die core block and a lower die core block are respectively provided inside between the top die base and the bottom die base. At the same time, the lower die core block's internal forming cavity is pressed by the lower part of the upper die core block. An injection port assembly is inserted into the upper template, the connection block assembly, the top die base and the upper die core block. A support block is provided below the bottom die base, and a lower template is provided below the support block. A top plate assembly is provided in the middle above the lower template, and a support column is inserted in the middle between the lower template and the top plate assembly. Four corner positions above the top plate assembly are provided with ejector pins, and the ejector pins are inserted into the top die base above. A top part column assembly is provided in the middle above the top plate assembly, and the top part column assembly is respectively inserted into the top die base and the lower die core block above. A positioning column is provided between the top die base and the bottom die base.

[0006] In the above precision forming mold for an automobile tail light light guide strip, the connection block assembly is fixedly connected to the lower part of the upper template, and the top of the top die base is fixedly connected to the lower part of the connection block assembly. An upper groove part is opened in the middle below the top die base, and the upper die core block is fixedly connected and clamped in the upper groove part. An upper cavity part is opened in the middle of the bottom of the upper die core block.

[0007] In the above-mentioned precision forming die for the light guide bar of the automobile taillight, the upper die base is pressed below the lower die base, and a lower groove portion is provided in the middle above the lower die base. The lower die core block is fixedly connected by being clamped in the lower groove portion, and a lower cavity portion is provided in the middle above the lower die core block. At the same time, the lower cavity portion and the upper cavity portion are pressed together to form a complete cavity inside.

[0008] In the above-mentioned precision forming die for the light guide bar of the automobile taillight, an injection port assembly is fixedly connected by being inserted in the middle of the upper template, and the top of the injection port assembly exceeds the top plane of the upper template. The injection port assembly is sequentially inserted downward and connected to the connecting block assembly, the upper die base and the upper die core block, and the bottom of the injection port assembly is flush with the bottom of the upper cavity portion. At the same time, the injection port assembly is communicated with the inside of the complete cavity.

[0009] In the above-mentioned precision forming die for the light guide bar of the automobile taillight, positioning columns are fixedly connected at the four corners below the upper die base, and there is a distance between the positioning columns and the upper die core block. Positioning holes are provided at the four corners above the lower die base, and there is a spacing between the positioning holes and the lower die core block. The positioning columns are inserted and slidably connected in the positioning holes.

[0010] In the above-mentioned precision forming die for the light guide bar of the automobile taillight, support blocks are fixedly connected to both sides below the lower die base, and the lower sides of the support blocks are fixedly connected to both sides above the lower template. At the same time, there is a distance between the lower template and the lower die base.

[0011] In the above-mentioned precision forming die for the light guide bar of the automobile taillight, a plurality of support columns are fixedly connected in the middle of the lower template, and the support columns pass through and are slidably connected to the top plate assembly upward. At the same time, the top of the support column is closely attached to the bottom of the lower die base.

[0012] In the above-mentioned precision forming die for the light guide bar of the automobile taillight, ejector pins are fixedly connected at the four corners above the top plate assembly, and the ejector pins pass through and are slidably connected into the lower die base upward. At the same time, the top of the ejector pin is closely attached to the bottom of the upper die base.

[0013] In the above-mentioned precision forming die for the light guide bar of the automobile taillight, a plurality of ejector pin assemblies are fixedly connected in the middle above the top plate assembly, and the ejector pin assemblies are respectively inserted and slidably connected to the lower die base and the lower die core block.

[0014] In the above-mentioned precision forming die for the light guide bar of the automobile taillight, the top of the ejector pin assembly is inserted into the lower cavity portion, and the top of the ejector pin assembly is flush with the inner bottom of the lower cavity portion.

[0015] Compared with the existing technology, the advantages of the present utility model are as follows:

[0016] In the utility model, an adapter block assembly is arranged below the upper template, a upper die base is arranged below the adapter block assembly, an upper die core block is arranged inside the lower part of the upper die base, a lower die core block is arranged inside the upper part of the lower die base, an injection port assembly is inserted in the middle of the upper template, a support block and a lower template are arranged below the lower die base, a top plate assembly is arranged above the lower template, and a ejector pin and an ejector post assembly are respectively arranged above the top plate assembly. By using the ejector pin and the ejector post assembly arranged below the die, the product part can be quickly and completely separated from the internal cavity, preventing the part clamping situation, avoiding the deformation of the light guide bar, and reducing the production cost and workload.

[0017] Other advantages, objectives and features of the utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the utility model. Brief Description of the Drawings

[0018] Figure 1 is the overall schematic diagram of the utility model;

[0019] Figure 2 is the overall exploded top view schematic diagram of the utility model;

[0020] Figure 3 is the overall sectional schematic diagram of the utility model;

[0021] Figure 4 is the internal structure cooperation schematic diagram of the utility model.

[0022] In the figure: 1. Upper template; 2. Injection port assembly; 3. Adapter block assembly; 4. Upper die base; 401. Upper groove part; 5. Lower die base; 501. Lower groove part; 6. Support block; 7. Lower template; 8. Top plate assembly; 9. Upper die core block; 901. Upper cavity part; 10. Lower die core block; 1001. Lower cavity part; 11. Ejector pin; 12. Ejector post assembly; 13. Support column; 14. Positioning column; 15. Positioning hole. Detailed Description of the Preferred Embodiment

[0023] The following further illustrates the utility model with reference to the accompanying drawings.

[0024] As Figures 1-4As shown in the figure, a precision molding die for an automobile tail light light guide bar includes an upper template 1. A connecting block assembly 3 is provided below the upper template 1, and a upper die base 4 is provided below the connecting block assembly 3. A lower die base 5 is provided below the upper die base 4. An upper die core block 9 and a lower die core block 10 are respectively provided inside between the upper die base 4 and the lower die base 5. At the same time, the lower die core block 10 is pressed by the lower part of the upper die core block 9 inside the forming cavity. An injection port assembly 2 is inserted into the upper template 1, the connecting block assembly 3, the upper die base 4 and the upper die core block 9. A support block 6 is provided below the lower die base 5, and a lower template 7 is provided below the support block 6. A top plate assembly 8 is provided in the middle above the lower template 7. A support column 13 is inserted in the middle between the lower template 7 and the top plate assembly 8. Four corner positions above the top plate assembly 8 are provided with ejector pins 11, and the ejector pins 11 are inserted into the upper die base 4 above. A ejector post assembly 12 is provided in the middle above the top plate assembly 8, and the ejector post assembly 12 is respectively inserted into the upper die base 4 and the lower die core block 10 above. A positioning column 14 is provided between the upper die base 4 and the lower die base 5.

[0025] The connecting block assembly 3 is fixedly connected below the upper template 1, and the top of the upper die base 4 is fixedly connected below the connecting block assembly 3. An upper groove part 401 is opened in the middle below the upper die base 4, and the upper die core block 9 is fixedly connected by being clamped in the upper groove part 401. An upper cavity part 901 is opened in the middle of the bottom of the upper die core block 9.

[0026] Furthermore, the upper die base 4 is pressed against the upper part of the lower die base 5, and a lower groove part 501 is opened in the middle of the upper part of the lower die base 5. The lower die core block 10 is fixedly connected by being clamped in the lower groove part 501, and a lower cavity part 1001 is opened in the middle of the upper part of the lower die core block 10. At the same time, the lower cavity part 1001 and the upper cavity part 901 are pressed together to form a complete cavity inside.

[0027] A connecting block assembly 3 is provided below the upper template 1, and an upper die base 4 is provided below the connecting block assembly 3. The upper die core block 9 provided inside the lower part of the upper die base 4 is used to press the lower die base 5 below, and a lower die core block 10 is provided inside the upper part of the lower die base 5. In this way, the cavities of the mold are formed inside the upper die core block 9 and the lower die core block 10, and molding is carried out inside.

[0028] Furthermore, the injection port assembly 2 is fixedly connected by being inserted into the middle of the upper template 1, and the top of the injection port assembly 2 exceeds the top plane of the upper template 1. The injection port assembly 2 is sequentially inserted downward into the connecting block assembly 3, the upper die base 4 and the upper die core block 9 below, and the bottom of the injection port assembly 2 is flush with the bottom of the upper cavity part 901. At the same time, the injection port assembly 2 is communicated with the complete cavity inside.

[0029] The injection port assembly 2 is inserted into the upper template 1, and the injection port assembly 2 is inserted all the way down into the upper die core block 9 and the lower die core block 10. After injecting injection liquid into the injection port assembly 2, the injection liquid flows into the joint of the upper cavity part 901 and the lower cavity part 1001, so that a product part is formed inside.

[0030] Furthermore, positioning columns 14 are fixedly connected to the four corners below the upper die base 4, and there is a distance between the positioning columns 14 and the upper die core block 9. Positioning holes 15 are provided at the four corners above the lower die base 5, and there is a spacing between the positioning holes 15 and the lower die core block 10. The positioning columns 14 are inserted into and slidably connected to the positioning holes 15.

[0031] The cooperation between the positioning columns 14 provided below the upper die base 4 and the positioning holes 15 provided on the lower die base 5 ensures the accuracy of mold closing during mold closing.

[0032] Support blocks 6 are fixedly connected to both sides below the lower die base 5, and the lower sides of the support blocks 6 are fixedly connected to both sides above the lower template 7. At the same time, there is a distance between the lower template 7 and the lower die base 5.

[0033] Furthermore, a plurality of support columns 13 are fixedly connected to the middle of the lower template 7, and the support columns 13 pass through and are slidably connected to the top plate assembly 8 above. At the same time, the tops of the support columns 13 are in close contact with the bottom of the lower die base 5.

[0034] The support columns 13 provided above the lower template 7 can position and support the upper lower die base 5 above.

[0035] Furthermore, ejector pins 11 are fixedly connected to the four corners above the top plate assembly 8, and the ejector pins 11 penetrate into and are slidably connected to the lower die base 5 above. At the same time, the tops of the ejector pins 11 are in close contact with the bottom of the upper die base 4.

[0036] When the ejector pins 11 are provided above the top plate assembly 8 during demolding, the upper die base 4 above is pushed open by the ejector pins 11.

[0037] Furthermore, a plurality of ejector pin assemblies 12 are fixedly connected to the middle above the top plate assembly 8, and the ejector pin assemblies 12 are respectively inserted into and slidably connected to the lower die base 5 and the lower die core block 10 above.

[0038] Furthermore, the tops of the ejector pin assemblies 12 are inserted into the lower cavity part 1001, and the tops of the ejector pin assemblies 12 are flush with the inner bottom of the lower cavity part 1001.

[0039] When the ejector pin assemblies 12 are provided above the top plate assembly 8, the ejector pin assemblies 12 are used to eject the product parts inside the mold during demolding.

[0040] Working principle:

[0041] A connecting block assembly 3 is provided below the upper template 1, and an upper die base 4 is provided below the connecting block assembly 3. At the same time, an upper die core block 9 is provided inside the lower part of the upper die base 4. The lower die base 5 is pressed by the lower part of the upper die base 4, and a lower die core block 10 is provided inside the upper part of the lower die base 5. Among them, the upper die core block 9 and the lower die core block 10 are also pressed together. The upper cavity part 901 and the lower cavity part 1001 are respectively provided on the two to form a complete cavity, and a product part is formed inside. An injection port assembly 2 is inserted into the middle of the upper template 1, and the injection port assembly 2 is inserted downward into the complete cavity all the way. When injection liquid is injected above the injection port assembly 2, the inside of the cavity is formed. A support block 6 and a lower template 7 are provided below the lower die base 5, and a top plate assembly 8 is provided above the lower template 7. At the same time, a ejector pin 11 and a product ejecting pin assembly 12 are respectively provided above the top plate assembly 8. When the mold is opened, the top plate assembly 8 is pushed upward by an external force, and the ejector pin 11 pushes the upper die base 4 and the upper structure away, so that the internal product part is separated from the upper die core block 9. At the same time, the top of the product ejecting pin assembly 12 is placed below the product part, and the product part can be ejected from the lower die core block 10, so that the product part is completely demolded.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model.

[0043] Although terms such as 1, upper template; 2, injection port assembly; 3, connecting block assembly; 4, upper die base; 401, upper groove part; 5, lower die base; 501, lower groove part; 6, support block; 7, lower template; 8, top plate assembly; 9, upper die core block; 901, upper cavity part; 10, lower die core block; 1001, lower cavity part; 11, ejector pin; 12, product ejecting pin assembly; 13, support column; 14, positioning column; 15, positioning hole are used more in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present utility model, and interpreting them as any kind of additional limitation is contrary to the spirit of the present utility model.

Claims

1. A precision forming mold for an automotive taillight light guide strip, comprising an upper template (1), characterized in that: Below the upper template (1), there is a connecting block assembly (3), and below the connecting block assembly (3), there is an upper die base (4). Below the upper die base (4), there is a lower die base (5). Inside the upper die base (4) and the lower die base (5), there are an upper die core block (9) and a lower die core block (10) respectively. At the same time, the lower die core block (10) is pressed by the lower part of the upper die core block (9) to form a molding cavity inside. An injection port assembly (2) is inserted into the upper template (1), the connecting block assembly (3), the upper die base (4), and the upper die core block (9). Below the lower die base (5), there is a support block (6), and below the support block (6), there is a lower template (7). In the middle of the upper part of the lower template (7), there is a top plate assembly (8). A support column (13) is inserted into the middle of the lower template (7) and the top plate assembly (8). At the four corners above the top plate assembly (8), there are ejector pins (11), and the upper parts of the ejector pins (11) are inserted into the lower die base (5). In the middle of the upper part of the top plate assembly (8), there is an ejector post assembly (12), and the upper parts of the ejector post assembly (12) are respectively inserted into the lower die base (5) and the lower die core block (10). A positioning column (14) is arranged between the upper die base (4) and the lower die base (5).

2. The precision forming mold for the light guide bar of an automotive tail lamp according to claim 1, wherein: The lower part of the upper template (1) is fixedly connected to the connecting block assembly (3), and the lower part of the connecting block assembly (3) is fixedly connected to the top of the upper die base (4). In the middle of the lower part of the upper die base (4), there is an upper groove part (401), and the upper die core block (9) is clamped and fixedly connected in the upper groove part (401). In the middle of the bottom of the upper die core block (9), there is an upper cavity part (901).

3. The precision forming die for the light guide bar of an automobile tail lamp according to claim 2, wherein: The upper die base (4) is pressed against the upper part of the lower die base (5). In the middle of the upper part of the lower die base (5), there is a lower groove part (501). The lower die core block (10) is clamped and fixedly connected in the lower groove part (501). In the middle of the upper part of the lower die core block (10), there is a lower cavity part (1001). At the same time, the lower cavity part (1001) and the upper cavity part (901) are pressed together to form a complete cavity inside.

4. The precision forming die for the light guide bar of an automobile tail lamp according to claim 3, wherein: The injection port assembly (2) is inserted and fixedly connected in the middle of the upper template (1), and the top of the injection port assembly (2) exceeds the top plane of the upper template (1). The lower part of the injection port assembly (2) is sequentially inserted downward into the connecting block assembly (3), the upper die base (4), and the upper die core block (9). The bottom of the injection port assembly (2) is flush with the bottom of the upper cavity part (901). At the same time, the injection port assembly (2) is communicated with the complete cavity inside.

5. The precision molding die for the light guide bar of an automobile tail lamp according to claim 4, characterized in that: At the four corners below the upper die base (4), the positioning column (14) is fixedly connected. There is a distance between the positioning column (14) and the upper die core block (9). At the four corners above the lower die base (5), there are positioning holes (15). There is a spacing between the positioning holes (15) and the lower die core block (10). The positioning column (14) is inserted and slidably connected in the positioning holes (15).

6. The precision molding die for the light guide bar of an automobile tail lamp according to claim 5, characterized in that: On both sides below the lower die base (5), they are fixedly connected to the upper parts of the support blocks (6). The lower parts of the support blocks (6) are fixedly connected to both sides of the upper part of the lower template (7). At the same time, there is a distance between the lower template (7) and the lower die base (5).

7. The precision molding die for the light guide bar of an automotive taillight according to claim 6, characterized in that: A plurality of support columns (13) are fixedly connected to the middle of the lower template (7), and the support columns (13) pass through and are slidably connected to the top plate assembly (8) above, and at the same time, the top of the support column (13) is closely attached to the bottom of the lower die base (5).

8. The precision molding die for the light guide bar of an automotive taillight according to claim 7, characterized in that: Four corners above the top plate assembly (8) are fixedly connected with top columns (11), and the top columns (11) penetrate and are slidably connected into the lower die base (5) above, and at the same time, the top of the top column (11) is closely attached to the bottom of the upper die base (4).

9. The precision forming mold for the light guide bar of an automobile tail lamp according to claim 8, wherein: A plurality of ejector pin assemblies (12) are fixedly connected to the middle above the top plate assembly (8), and the ejector pin assemblies (12) are respectively inserted and slidably connected to the lower die base (5) and the lower die core block (10) above.

10. The precision forming die for the light guide bar of an automotive taillight according to claim 9, characterized in that: The top of the ejector pin assembly (12) is inserted into the lower cavity part (1001), and the top of the ejector pin assembly (12) is flush with the inner bottom of the lower cavity part (1001).

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