Mould for plastic light guide ring of car lamp

Abstract

The utility model belongs to the technical field of dies, and particularly relates to a car lamp plastic light guide ring die. The injection mold comprises an upper mold plate, an upper mold base is arranged below the upper mold plate, an injection port assembly is arranged in the upper mold plate and the upper mold base, a lower mold base is pressed below the upper mold base, an upper mold core groove and a lower mold core groove are formed in the upper mold base and the lower mold base respectively, a supporting block, the lower mold plate and a top plate are arranged below the lower mold base, and a supporting column is arranged above the lower mold plate. According to the light guide ring mold, the demolding ejection columns are arranged at the four corners of the ejection plate, the first straight ejection rod, the second straight ejection rod and the main ejection rod are arranged in the middle of the ejection plate, the two forming cavities are formed in the mold, matched light guide rings can be produced in the mold at the same time, the situation that matching is carried out after production is avoided, the working efficiency is improved, and the workload is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a plastic light guide ring mold for a vehicle lamp. Background Art

[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 wide variety of colors and patterns, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes. This method is suitable for mass production of parts with complex shapes and is one of the important processing methods. When the existing plastic light guide rings of car lights are injected, due to the complex shape of the light guide rings and the use of pairs, the molds are usually used for single injection molding, and then matched after the injection molding is completed, which results in low production efficiency and a large workload. Therefore, in view of the above problems, a mold for a plastic light guide ring of a car light is proposed. Utility Model Content

[0003] The utility model aims to provide a plastic light guide ring mould for a vehicle lamp in view of the above problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A plastic light guide ring mold for a vehicle lamp comprises an upper mold plate, an upper mold base is provided below the upper mold plate, and an injection port assembly is provided in the middle between the upper mold plate and the upper mold base, a lower mold base is provided below the upper mold base, and a molding cavity is provided between the upper mold base and the lower mold base, a positioning column is provided between the four corners of the upper mold base and the lower mold base, a support block is provided below the lower mold base, a lower mold plate is provided below the support block, a support column is provided in the middle of the lower mold plate, and a top plate is provided outside the support column, demoulding ejector columns are provided at the four corners of the top plate, a first straight ejector rod, a second straight ejector rod and a main ejector rod are provided in the middle of the top plate, and the first straight ejector rod, the second straight ejector rod and the main ejector rod are all inserted upward into the lower mold base.

[0006] In the above-mentioned automotive lamp plastic light guide ring mold, the upper mold plate is fixedly connected to the upper mold base at the bottom, and the upper mold plate and the injection port assembly are inserted and fixedly connected in the center of the upper mold base. An upper mold core groove is opened at the bottom of the upper mold base, and the top of the upper mold core groove is connected to the bottom of the injection port assembly. At the same time, a runner groove is provided in the middle of the upper mold core groove.

[0007] In the above-mentioned automotive lamp plastic light guide ring mold, a lower mold core groove is opened on the top of the lower mold base, and a flow channel groove is provided in the middle of the lower mold core groove. The upper mold core groove is pressed into the internal molding cavity of the lower mold core groove, and a circle around the upper mold core groove and the lower mold core groove is pressed and sealed.

[0008] In the above-mentioned automotive lamp plastic light guide ring mold, positioning holes are opened in the four corners of the upper mold base, and positioning columns are fixedly connected to the four corners of the lower mold base, and the upper part of the positioning column is inserted into the sliding connection positioning hole, and there is a distance between the positioning column and the lower mold core groove.

[0009] In the above-mentioned plastic light guide ring mold for car lights, both sides of the bottom of the lower mold base are fixedly connected to support blocks, the lower part of the support block is fixedly connected to the two sides of the upper part of the lower template, the middle part of the lower template is fixedly connected to two support columns, and the top of the support column exceeds the top of the support block, and the top of the support column is inserted into the lower mold base.

[0010] In the above-mentioned car lamp plastic light guide ring mold, the bottom outer shell of the support column is slidably connected to two top plates, and the two top plates are fixedly connected and tightly fit. At the same time, there is a distance between the bottom of the top plate and the upper plane of the lower template, and there is a gap between the two sides of the top plate and the inner side of the support block.

[0011] In the above-mentioned automotive lamp plastic light guide ring mold, the four corners of the top plate are fixedly connected to demoulding top pillars, and the demoulding top pillars are inserted upward into the sliding connection lower mold base, and at the same time, the top of the demoulding top pillars is tightly fitted with the bottom of the upper mold base.

[0012] In the above-mentioned automotive lamp plastic light guide ring mold, a plurality of first straight push rods and a plurality of second straight push rods are fixedly connected to the middle of the top plate, and a plurality of first through holes and a plurality of second through holes are opened in the lower mold base.

[0013] In the above-mentioned automotive lamp plastic light guide ring mold, the first straight push rod and the second straight push rod are respectively inserted into the first through hole and the second through hole for sliding connection, and the tops of the first straight push rod and the second straight push rod are flush with the bottom of the lower mold core groove.

[0014] In the above-mentioned automotive lamp plastic light guide ring mold, the center of the top plate is fixedly connected to the main push rod, the center of the lower mold base is provided with a main through hole, the main push rod is inserted into the sliding connection main through hole, and the top of the main push rod is flush with the bottom of the center of the lower mold core groove.

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

[0016] The utility model has an upper mold base below the upper mold base, and the upper mold base and the upper mold base are provided with injection port components, a lower mold base is pressed below the upper mold base, and an upper mold core groove and a lower mold core groove are respectively provided in the upper mold base and the lower mold base, a support block, a lower mold base and a top plate are provided below the lower mold base, and a support column is provided above the lower mold base, demoulding ejector columns are provided at the four corners of the top plate, and a first straight ejector rod, a second straight ejector rod and a main ejector rod are provided in the middle of the top plate. Since two molding cavities are provided inside the mold, matching light guide rings can be produced simultaneously inside, thereby avoiding the situation of matching after production, increasing work efficiency and reducing workload.

[0017] 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

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

[0019] Figure 2 This is an overall exploded top view of the utility model.

[0020] Figure 3 It is an overall exploded bottom view schematic diagram of the utility model;

[0021] Figure 4 It is a top view schematic diagram of the lower mold core groove of the utility model;

[0022] Figure 5 It is a schematic diagram of the overall internal coordination of the utility model.

[0023] In the figure: 1. upper mold plate; 2. injection port assembly; 3. upper mold base; 31. upper mold core groove; 32. positioning hole; 4. lower mold base; 41. lower mold core groove; 42. positioning column; 5. support block; 6. lower mold plate; 7. top plate; 8. support column; 9. demoulding ejector column; 10. first straight ejector rod; 11. second straight ejector rod; 12. main ejector rod; 13. first through hole; 14. second through hole; 15. main through hole. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-5 As shown, a plastic light guide ring mold for a vehicle lamp comprises an upper mold plate 1, an upper mold base 3 is provided below the upper mold plate 1, and an injection port assembly 2 is provided in the middle between the upper mold plate 1 and the upper mold base 3, a lower mold base 4 is provided below the upper mold base 3, and a molding cavity is provided between the upper mold base 3 and the lower mold base 4, a positioning column 42 is provided between the four corners of the upper mold base 3 and the lower mold base 4, a support block 5 is provided below the lower mold base 4, a lower mold plate 6 is provided below the support block 5, a support column 8 is provided in the middle of the lower mold plate 6, and a top plate 7 is provided on the outer sleeve of the support column 8, demoulding ejector columns 9 are provided at the four corners of the top plate 7, a first straight ejector rod 10, a second straight ejector rod 11 and a main ejector rod 12 are provided in the middle of the top plate 7, and the first straight ejector rod 10, the second straight ejector rod 11 and the main ejector rod 12 are all inserted upward into the lower mold base 4.

[0026] The upper mold base 3 is fixedly connected through the lower part of the upper mold plate 1, and the upper mold plate 1 and the injection port assembly 2 are inserted and fixedly connected in the center of the upper mold base 3. An upper mold core groove 31 is opened at the bottom of the upper mold base 3, and the top of the upper mold core groove 31 is connected to the bottom of the injection port assembly 2. At the same time, a runner groove is provided in the middle of the upper mold core groove 31.

[0027] Insert the injection port assembly 2 into the upper mold plate 1 and the upper mold base 3, and use the upper injection port assembly 2 to inject injection liquid into the mold. An upper mold core groove 31 is provided at the bottom of the upper mold base 3. The injection liquid is injected into the upper mold core groove 31 and then diverted out.

[0028] Furthermore, a lower mold core groove 41 is opened at the top of the lower mold base 4, and a flow channel groove is provided in the middle of the lower mold core groove 41. The upper mold core groove 31 is pressed into the internal molding cavity of the lower mold core groove 41, and a circle of pressing and sealing is formed around the upper mold core groove 31 and the lower mold core groove 41.

[0029] After the lower mold core groove 41 provided on the upper part of the lower mold base 4 and the upper mold core groove 31 provided on the bottom of the upper mold base 3 are combined, the injection liquid is injected into the inside of both, and the periphery of both is sealed to form a product part inside.

[0030] Furthermore, positioning holes 32 are opened at the four corners of the upper mold base 3, and positioning columns 42 are fixedly connected at the four corners of the lower mold base 4. The upper part of the positioning column 42 is inserted into the sliding connection positioning hole 32, and there is a distance between the positioning column 42 and the lower mold core groove 41.

[0031] When the upper die base 3 and the lower die base 4 are pressed together, the positioning column 42 is inserted into the positioning hole 32 to ensure that the internal cavity does not deviate when the mold is closed.

[0032] The support blocks 5 are fixedly connected on both sides of the bottom of the lower mold base 4, the lower side of the support block 5 is fixedly connected to the upper sides of the lower mold plate 6, and the middle part of the lower mold plate 6 is fixedly connected to two support columns 8, and the top of the support column 8 exceeds the top of the support block 5, and the upper part of the support column 8 is inserted into the lower mold base 4.

[0033] Furthermore, two top plates 7 are slidably connected to the outer bottom of the support column 8, and the two top plates 7 are fixedly connected and tightly fit. At the same time, there is a distance between the bottom of the top plate 7 and the upper plane of the lower template 6, and there is a gap between the two sides of the top plate 7 and the inner side of the support block 5.

[0034] A support block 5, a lower mold plate 6 and a top plate 7 are provided below the lower mold base 4. The top plate 7 is pushed up under external force, so that the parts above the top plate 7 act on the inside of the mold during demoulding.

[0035] Furthermore, the four corners of the top plate 7 are fixedly connected to the demoulding top pillars 9, and the demoulding top pillars 9 are inserted upward into the sliding connection lower mold base 4, and at the same time, the top of the demoulding top pillars 9 is tightly fitted with the bottom of the upper mold base 3.

[0036] After the demoulding ejector pin 9 and the top plate 7 are lifted up together, the demoulding ejector pin 9 will exert force on the upper mold base 3, so that the upper mold base 3 and the upper parts are opened together.

[0037] Furthermore, a plurality of first straight push rods 10 and a plurality of second straight push rods 11 are fixedly connected to the middle of the top plate 7 , and a plurality of first through holes 13 and a plurality of second through holes 14 are opened in the lower die base 4 .

[0038] Furthermore, the first straight push rod 10 and the second straight push rod 11 are inserted into and slidably connected to the first through hole 13 and the second through hole 14 respectively, and the tops of the first straight push rod 10 and the second straight push rod 11 are flush with the bottom of the lower mold core groove 41 .

[0039] Furthermore, the center of the top plate 7 is fixedly connected to the main push rod 12, and the center of the lower mold base 4 is provided with a main through hole 15, the main push rod 12 is inserted into the sliding connection main through hole 15, and the top of the main push rod 12 is flush with the center bottom of the lower mold core groove 41.

[0040] A first straight push rod 10, a second straight push rod 11 and a main push rod 12 are provided on the top plate 7. When the mold is opened, the three push rods are used to apply an upward force to the product inside the mold to demold the product.

[0041] Working principle:

[0042] An upper mold base 3 is provided below the upper mold plate 1, and an injection port assembly 2 is provided in the upper mold plate 1 and the upper mold base 3. The injection port assembly 2 is used to inject the injection liquid into the entire mold. The lower mold base 4 is pressed together below the upper mold base 3, and an upper mold core groove 31 and a lower mold core groove 41 are provided in the upper mold base 3 and the lower mold base 4, respectively. The combined molding cavity of the upper mold core groove 31 and the lower mold core groove 41 is used to ensure that the mold is complete and the inside is not offset after the positioning hole 32 of the upper mold base 3 and the positioning column 42 of the lower mold base 4 are matched. In this way, the injection liquid is injected into the mold after the mold is closed to form a product. A support block 5, a lower mold plate 6 and a top plate 7 are provided below the lower mold base 4, and a support column 8 is provided above the lower mold plate 6. The support column 8 is slidably connected to the top plate 7, so that the top plate 7 can move up and down between the lower mold base 4 and the lower mold plate 6. Demolding ejector columns 9 are provided at the four corners of the top plate 7, and the top of the demoulding ejector column 9 passes through the lower mold base 4 and contacts the bottom of the upper mold base 3. A first straight ejector rod 10, a second straight ejector rod 11 and a main ejector rod 12 are provided in the middle of the top plate 7, and the tops of the first straight ejector rod 10, the second straight ejector rod 11 and the main ejector rod 12 are placed under the product to contact. During demoulding, an external force is applied to the top plate 7 to make it rise, and the demoulding ejector column 9 pushes open the upper mold base 3 and the parts above it, and the first straight ejector rod 10, the second straight ejector rod 11 and the main ejector rod 12 eject the product, and the two are performed simultaneously to form an open mold form.

[0043] 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 without departing from the spirit of the present invention.

[0044] Although this article uses more terms such as 1, upper template; 2, injection port assembly; 3, upper mold base; 31, upper mold core groove; 32, positioning hole; 4, lower mold base; 41, lower mold core groove; 42, positioning column; 5, support block; 6, lower template; 7, top plate; 8, support column; 9, demoulding ejector column; 10, first straight ejector pin; 11, second straight ejector pin; 12, main ejector pin; 13, first through hole; 14, second through hole; 15, main through hole, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model. It is contrary to the spirit of the utility model to interpret them as any additional restrictions.

Claims

1. A plastic light guide ring mold for a vehicle lamp, comprising an upper mold plate (1), characterized in that: An upper mold base (3) is provided below the upper mold base (1), and an injection port assembly (2) is provided in the middle between the upper mold base (1) and the upper mold base (3), a lower mold base (4) is provided below the upper mold base (3), and a molding cavity is formed between the upper mold base (3) and the lower mold base (4), positioning columns (42) are provided between the four corners of the upper mold base (3) and the lower mold base (4), a support block (5) is provided below the lower mold base (4), and a mold cavity (42) is provided below the support block (5). A lower mold plate (6) is provided, a support column (8) is provided in the middle of the lower mold plate (6), and a top plate (7) is provided on the outer sleeve of the support column (8), demoulding ejector columns (9) are provided at the four corners of the top plate (7), a first straight ejector rod (10), a second straight ejector rod (11) and a main ejector rod (12) are provided in the middle of the top plate (7), and the first straight ejector rod (10), the second straight ejector rod (11) and the main ejector rod (12) are all inserted upwards into the lower mold base (4).

2. The automotive lamp plastic light guide ring mold according to claim 1, characterized in that: The upper mold base (3) is fixedly connected to the lower part of the upper mold plate (1), and the injection port assembly (2) is inserted and fixedly connected to the center of the upper mold plate (1) and the upper mold base (3). An upper mold core groove (31) is provided at the bottom of the upper mold base (3), and the top of the upper mold core groove (31) is connected to the bottom of the injection port assembly (2), and a flow channel groove is provided in the middle of the upper mold core groove (31).

3. The automotive lamp plastic light guide ring mold according to claim 2, characterized in that: The top of the lower mold base (4) is provided with a lower mold core groove (41), and a flow channel groove is provided in the middle of the lower mold core groove (41); the upper mold core groove (31) is pressed into the internal molding cavity of the lower mold core groove (41), and a circle of pressing and sealing is formed around the upper mold core groove (31) and the lower mold core groove (41).

4. The automotive lamp plastic light guide ring mold according to claim 3, characterized in that: Positioning holes (32) are provided at the four corners of the upper die seat (3), and positioning columns (42) are fixedly connected at the four corners of the lower die seat (4), and the upper part of the positioning columns (42) is inserted into the sliding connection positioning holes (32), and there is a distance between the positioning columns (42) and the lower die core groove (41).

5. The automotive lamp plastic light guide ring mold according to claim 4, characterized in that: Both sides of the bottom of the lower die base (4) are fixedly connected to support blocks (5), the lower side of the support blocks (5) are fixedly connected to both sides of the upper side of the lower mold plate (6), the middle of the lower mold plate (6) is fixedly connected to two support columns (8), and the top of the support column (8) exceeds the top of the support block (5), and the upper side of the support column (8) is inserted into the lower die base (4).

6. The automotive lamp plastic light guide ring mold according to claim 5, characterized in that: The bottom of the support column (8) is provided with two top plates (7) slidably connected thereto, and the two top plates (7) are fixedly connected and tightly fitted, and at the same time, there is a distance between the bottom of the top plate (7) and the upper plane of the lower template (6), and there is a gap between the two sides of the top plate (7) and the inner side of the support block (5).

7. The automotive lamp plastic light guide ring mold according to claim 6, characterized in that: The top plate (7) is fixedly connected to the demoulding top pillars (9) at the four corners, and the demoulding top pillars (9) are inserted upward into the sliding connection lower mold base (4), and at the same time, the top of the demoulding top pillar (9) is tightly fitted with the bottom of the upper mold base (3).

8. The automotive lamp plastic light guide ring mold according to claim 7, characterized in that: A plurality of first straight push rods (10) and a plurality of second straight push rods (11) are fixedly connected in the middle of the top plate (7), and a plurality of first through holes (13) and a plurality of second through holes (14) are provided in the lower die base (4).

9. The automotive lamp plastic light guide ring mold according to claim 8, characterized in that: The first straight push rod (10) and the second straight push rod (11) are inserted into the first through hole (13) and the second through hole (14) for sliding connection respectively, and the tops of the first straight push rod (10) and the second straight push rod (11) are flush with the bottom of the lower mold core groove (41).

10. The automotive lamp plastic light guide ring mold according to claim 9, characterized in that: The center of the top plate (7) is fixedly connected to a main push rod (12), the center of the lower mold base (4) is provided with a main through hole (15), the main push rod (12) is inserted into the slidably connected main through hole (15), and the top of the main push rod (12) is flush with the center bottom of the lower mold core groove (41).

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