Ejector pin mechanism of injection molding mold for lampshade of electric vehicle

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an ejector pin mechanism of an electric vehicle lampshade injection molding mold. The injection mold comprises an upper mold plate, an upper mold base is arranged below the upper mold plate, an injection molding opening assembly is inserted into the upper mold plate and the upper mold base, a protruding part arranged at the bottom of the upper mold base is inserted into a groove part formed in the upper portion of a lower mold base, an upper mold core groove is formed in the protruding part, and an upper runner groove is formed in the upper mold core groove. A lower die core protruding part is arranged in the groove part, a lower runner groove is formed in the middle of the top of the lower die core protruding part, a supporting block and a lower die plate are arranged below the lower die base, a supporting column is arranged above the lower die plate, the supporting column is sleeved with a top plate assembly, and a top column and an ejector pin are arranged above the top plate assembly. According to the utility model, the ejector pin is arranged in the mold to eject the redundant part out of the mold together with a product piece, so that the lampshade is prevented from being deformed or damaged by pulling, the rejection rate is reduced, the cost and the labor force are reduced, and secondary remodeling is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds and relates to an ejector mechanism of an injection molding mold for an electric vehicle lampshade. 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 dimensions. The products are easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding and processing fields such as products with complex shapes. The existing electric vehicle lampshade molding parts are a pair, and the lampshade has a complex shape. It is easy to get stuck in the internal cavity of the mold during injection molding, which will cause the lampshade to deform or break, resulting in a high scrap rate, increased production costs and labor, and secondary reshaping. Therefore, in response to the above problems, an ejector mechanism for an electric vehicle lampshade injection molding mold is proposed. Utility Model Content

[0003] The utility model aims to solve the above problems and provides an ejector mechanism for an injection molding die of an electric vehicle lampshade.

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

[0005] An ejector mechanism for an injection molding mold for an electric vehicle lampshade comprises an upper mold plate, an upper mold base is arranged below the upper mold plate, and injection port assemblies are inserted in the middle of the upper mold plate and the upper mold base, a lower mold base is pressed together below the upper mold base, and a positioning column is arranged between the pressing part of the upper mold base and the lower mold base, and at the same time, an internal molding cavity is formed at the pressing part of the upper mold base and the lower mold base, support blocks are arranged on both sides below the lower mold base, and the support blocks are placed on both sides of the lower mold plate below, support columns are arranged above the lower mold plate, and an ejector plate assembly is arranged outside the support columns, an ejector column and an ejector pin are respectively arranged above the ejector plate assembly, and the ejector column and the ejector pin are inserted in the lower mold base above.

[0006] In the above-mentioned ejector mechanism of the electric vehicle lampshade injection molding mold, the upper mold base is fixedly connected to the lower part of the upper mold plate, and the injection port assembly is inserted and fixedly connected in the upper mold plate and the upper mold base, the bottom of the upper mold base is fixedly connected to the raised portion, and an upper mold core groove is opened in the raised portion, and an upper runner groove is opened in the middle of the bottom of the upper mold core groove.

[0007] In the above-mentioned ejector mechanism of the electric vehicle lampshade injection molding mold, a groove portion is opened above the lower mold base, and a sliding connection protrusion portion is inserted into the groove portion, a lower mold core protrusion portion is opened in the middle of the groove portion, and a lower runner groove is opened in the middle of the top of the lower mold core protrusion portion.

[0008] In the above-mentioned ejector mechanism of the electric vehicle lampshade injection molding mold, the protrusion of the lower mold core is inserted into the molding cavity in the upper mold core groove, the lower runner groove is pressed with the upper runner groove, and the bottom of the injection port assembly is inserted into the upper runner groove, and at the same time, the pressing point of the lower runner groove and the upper runner groove is connected to the mold cavity.

[0009] In the above-mentioned ejector mechanism of the electric vehicle lampshade injection molding mold, positioning holes are opened at the four corners below the upper mold base, and positioning columns are fixedly connected to the four corners above the lower mold base, and the top of the positioning columns is inserted into the sliding connection positioning holes.

[0010] In the above-mentioned ejector mechanism of the electric vehicle lampshade injection molding mold, both sides of the lower side of the lower mold base are fixedly connected to the upper side of the support block, and the lower side of the support block is respectively fixedly connected to both sides of the upper side of the lower mold plate.

[0011] In the above-mentioned ejector mechanism of the electric vehicle lampshade injection molding mold, a plurality of support columns are fixedly connected to the upper part of the lower mold plate, and the upper part of the support columns is inserted into the bottom of the lower mold base, and the outer part of the support columns is slidably connected to the ejector plate assembly.

[0012] In the above-mentioned ejector mechanism of the electric vehicle lampshade injection molding mold, the four corners above the top plate assembly are fixedly connected to ejector posts, and the top of the ejector posts is inserted into the sliding connection lower mold base, while the top of the ejector posts is tightly fitted with the bottom of the upper mold base.

[0013] In the above-mentioned ejector pin mechanism of the electric vehicle lampshade injection molding mold, the middle part of the ejector plate assembly is fixedly connected to the ejector pin, and the top of the ejector pin penetrates into the sliding connection lower mold base.

[0014] In the above-mentioned ejector pin mechanism of the electric vehicle lampshade injection molding mold, the top of the ejector pin is inserted into the upper flow channel 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 an injection port assembly is inserted into the upper mold base and the upper mold base, a raised portion provided at the bottom of the upper mold base is inserted into a groove portion provided above the lower mold base, an upper mold core groove is provided in the raised portion, an upper runner groove is provided in the upper mold core groove, a lower mold core raised portion is provided in the groove portion, and a lower runner groove is provided in the middle of the top of the lower mold core raised portion, a support block and a lower mold base are provided below the lower mold base, a support column is provided above the lower mold base, and a top plate assembly is provided outside the support column, and an ejector column and an ejector pin are respectively provided above the top plate assembly, and an ejector pin is provided inside the mold to eject excess parts and product parts out of the mold together, thereby preventing the lampshade from being deformed or pulled, reducing the scrap rate, reducing costs and labor, and avoiding secondary reshaping.

[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 It is an overall exploded top view schematic diagram 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 schematic diagram of the internal structure coordination of the utility model;

[0022] Figure 5 It is a top plan view of the lower die base of the utility model.

[0023] In the figure: 1. upper mold plate; 2. injection port assembly; 3. upper mold base; 31. raised portion; 4. lower mold base; 41. groove portion; 5. support block; 6. lower mold plate; 7. ejector plate assembly; 8. ejector column; 9. support column; 10. ejector pin; 11. upper mold core groove; 1101. upper runner groove; 12. lower mold core raised portion; 1201. lower runner groove; 13. positioning hole; 14. positioning column. DETAILED DESCRIPTION

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

[0025] like Figure 1-5 As shown, an ejector mechanism of an injection molding mold for an electric vehicle lampshade 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 inserted in the middle of the upper mold plate 1 and the upper mold base 3, a lower mold base 4 is pressed together below the upper mold base 3, and a positioning column 14 is provided between the pressing part of the upper mold base 3 and the lower mold base 4, and at the same time, an internal molding cavity at the pressing part of the upper mold base 3 and the lower mold base 4, support blocks 5 are provided on both sides below the lower mold base 4, and the support blocks 5 are placed on both sides of the lower mold plate 6, support columns 9 are provided above the lower mold plate 6, and an ejector plate assembly 7 is provided on the outer sleeve of the support columns 9, an ejector column 8 and an ejector pin 10 are respectively provided above the ejector plate assembly 7, and the ejector column 8 and the ejector pin 10 are inserted in the lower mold base 4 above.

[0026] The upper mold base 3 is fixedly connected through the lower part of the upper mold plate 1, and the injection port assembly 2 is inserted and fixedly connected in both the upper mold plate 1 and the upper mold base 3, the bottom of the upper mold base 3 is fixedly connected with a raised portion 31, and an upper mold core groove 11 is opened in the raised portion 31, and an upper runner groove 1101 is opened in the middle of the bottom of the upper mold core groove 11.

[0027] Among them, after the injection port assembly 2 is inserted into the upper template 1 and the upper mold base 3, the injection port assembly 2 is used to inject the injection liquid into the entire mold, and the upper mold core groove 11 provided under the upper mold base 3 is provided with an upper runner groove 1101, so that when the injection port assembly 2 injects the injection liquid into the flow channel of the upper runner groove 1101, it enters according to the flow direction of the upper runner groove 1101.

[0028] Furthermore, a groove portion 41 is opened on the top of the lower mold base 4, and the sliding connection protrusion 31 is inserted into the groove portion 41, a lower mold core protrusion 12 is opened in the middle of the groove portion 41, and a lower runner groove 1201 is opened in the middle of the top of the lower mold core protrusion 12.

[0029] Furthermore, the lower mold core protrusion 12 is inserted into the molding cavity of the upper mold core groove 11, the lower runner groove 1201 is pressed with the upper runner groove 1101, and the upper runner groove 1101 is inserted into the bottom of the injection port assembly 2, and at the same time, the pressing point of the lower runner groove 1201 and the upper runner groove 1101 is connected to the mold cavity.

[0030] Among them, after the lower mold core protrusion 12 provided on the top of the lower mold base 4 is inserted into the upper mold core groove 11, the space between the two forms a forming cavity. Since the upper mold core groove 11 is provided with an upper runner groove 1101, and the top of the lower mold core protrusion 12 is provided with a lower runner groove 1201, the two are combined into a whole runner. When the injection port assembly 2 injects the injection liquid into the combined runner of the two, the injection liquid enters the cavities on both sides of the mold separately. At the same time, the excess part will also be formed in the entire runner in the middle to connect the product parts on both sides together.

[0031] Positioning holes 13 are opened at the four corners of the lower part of the upper die base 3 , and positioning columns 14 are fixedly connected to the four corners of the upper part of the lower die base 4 , and the upper part of the positioning columns 14 is inserted into the slidably connected positioning holes 13 .

[0032] The upper die base 3 is provided with a positioning hole 13 which cooperates with the positioning column 14 provided on the upper portion of the lower die base 4 to ensure accuracy during mold closing.

[0033] Both sides of the lower part of the lower die base 4 are fixedly connected to the upper part of the support block 5 , and the lower part of the support block 5 is respectively fixedly connected to both sides of the upper part of the lower die plate 6 .

[0034] Furthermore, a plurality of support columns 9 are fixedly connected to the top of the lower mold plate 6 , and the top of the support columns 9 is inserted into the bottom of the lower mold base 4 , and the support columns 9 are outer-mounted with a top plate assembly 7 that is slidably connected.

[0035] A support block 5 is provided below the lower mold base 4 and is integrated with the lower mold plate 6. At the same time, support columns 9 and a top plate assembly 7 are provided inside the whole. Under the action of external force, the top plate assembly 7 can move by relying on the support columns 9, so that the top plate assembly 7 can drive the components above itself to facilitate mold opening.

[0036] Furthermore, top columns 8 are fixedly connected at the four corners above the top plate assembly 7 , and the top of the top column 8 is inserted into the sliding connection lower mold base 4 , while the top of the top column 8 is tightly fitted with the bottom of the upper mold base 3 .

[0037] The top column 8 provided above the top plate assembly 7 is used to lift up the upper mold base 3 and the upper structure when the mold is opened.

[0038] Furthermore, the middle of the ejector plate assembly 7 is fixedly connected to an ejector pin 10 , and the upper portion of the ejector pin 10 penetrates into the sliding connection lower die base 4 .

[0039] Furthermore, the top of the ejector pin 10 is inserted into the upper flow channel groove 1101 .

[0040] An ejector pin 10 is provided in the middle of the upper portion of the ejector plate assembly 7. After the ejector pin 10 is inserted into the upper flow channel groove 1101 and the lower flow channel groove 1201, the product can be ejected out of the cavity after the mold is opened.

[0041] Working principle:

[0042] An upper mold base 3 is provided below the upper mold plate 1, and an injection port assembly 2 is inserted into 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 protrusion 31 provided at the bottom of the upper mold base 3 is inserted into the groove 41 provided above the lower mold base 4, so that the upper mold base 3 and the lower mold base 4 are pressed together. At the same time, the cooperation of the protrusion 31 and the groove 41 seals the interior of the mold to prevent the injection liquid from overflowing. An upper mold core groove 11 is provided in the protrusion 31, and An upper runner groove 1101 is provided in the upper mold core groove 11, and the bottom of the injection port assembly 2 is inserted into the upper runner groove 1101. The injection port assembly 2 is injected into the mold through the upper runner groove 1101. A lower mold core protrusion 12 is provided in the groove portion 41, and a lower runner groove 1201 is provided in the middle of the top of the lower mold core protrusion 12. In this way, when the upper mold base 3 and the lower mold base 4 are pressed together, the lower mold core protrusion 12 will be inserted into the upper mold core groove 11, and the lower runner groove 1201 The lower mold base 4 is pressed together with the upper runner groove 1101, so that a complete cavity is formed inside. At the same time, the lower runner groove 1201 and the upper runner groove 1101 are connected to the mold cavities on both sides, and the excess parts of the lower runner groove 1201 and the upper runner groove 1101 will be connected with the product parts during the injection molding process. A support block 5 is provided below the lower mold base 4, and a lower mold plate 6 is provided below the support block 5. A support column 9 is provided above the lower mold plate 6, and a top plate assembly is provided on the outer sleeve of the support column 9. Part 7, an ejector column 8 and an ejector pin 10 are respectively provided above the ejector plate assembly 7. When the mold is opened, the ejector plate assembly 7 rises under the action of external force, and the ejector column 8 will lift up the upper mold base 3 and the structure above it, so that the upper mold core groove 11 is separated from the product part. At the same time, the ejector pin 10 is inserted into the upper runner groove 1101 and the lower runner groove 1201, and the ejector pin 10 will push up the excess internal part together with the product parts on both sides, so that the product part is separated from the lower mold core protrusion 12, and the mold opening is completed.

[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 mold plate; 2, injection port assembly; 3, upper mold base; 31, raised portion; 4, lower mold base; 41, groove portion; 5, support block; 6, lower mold plate; 7, top plate assembly; 8, ejector column; 9, support column; 10, ejector pin; 11, upper mold core groove; 1101, upper runner groove; 12, lower mold core raised portion; 1201, lower runner groove; 13, positioning hole; 14, positioning column, 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. An ejector mechanism for an injection molding mold for an electric vehicle lampshade, comprising an upper mold plate (1), characterized in that: An upper mold base (3) is provided below the upper mold plate (1), and an injection port assembly (2) is inserted in the middle of the upper mold plate (1) and the upper mold base (3). A lower mold base (4) is pressed below the upper mold base (3), and a positioning column (14) is provided between the pressed joint of the upper mold base (3) and the lower mold base (4). At the same time, an internal molding cavity is formed at the pressed joint of the upper mold base (3) and the lower mold base (4). Support blocks (5) are provided on both sides below the lower mold base (4), and the support blocks (5) are placed on both sides of the lower mold plate (6). A support column (9) is provided above the lower mold plate (6), and a top plate assembly (7) is provided on the outer sleeve of the support column (9). A top plate assembly (7) is provided with a top column (8) and a top pin (10) respectively, and the top of the top column (8) and the top of the top pin (10) are inserted into the lower mold base (4).

2. The ejector mechanism of the electric vehicle lampshade injection molding 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 an injection port assembly (2) is inserted and fixedly connected into both the upper mold plate (1) and the upper mold base (3). The lower part of the upper mold base (3) is fixedly connected to a raised portion (31), and an upper mold core groove (11) is provided in the raised portion (31), and an upper runner groove (1101) is provided in the middle of the lower part of the upper mold core groove (11).

3. The ejector mechanism of the electric vehicle lampshade injection molding mold according to claim 2, characterized in that: A groove portion (41) is provided above the lower mold base (4), and a sliding connection protrusion (31) is inserted into the groove portion (41); a lower mold core protrusion (12) is provided in the middle of the groove portion (41), and a lower runner groove (1201) is provided in the middle of the top of the lower mold core protrusion (12).

4. The ejector mechanism of the electric vehicle lampshade injection molding mold according to claim 3, characterized in that: The lower mold core protrusion (12) is inserted into the molding cavity of the upper mold core groove (11), the lower runner groove (1201) is pressed together with the upper runner groove (1101), and the bottom of the injection port assembly (2) is inserted into the upper runner groove (1101), and the pressing point between the lower runner groove (1201) and the upper runner groove (1101) is connected to the mold cavity.

5. The ejector mechanism of the electric vehicle lampshade injection molding mold according to claim 4, characterized in that: Positioning holes (13) are provided at the four corners below the upper die seat (3), and positioning columns (14) are fixedly connected at the four corners above the lower die seat (4), and the top of the positioning columns (14) is inserted into the sliding connection positioning holes (13).

6. The ejector mechanism of the electric vehicle lampshade injection molding mold according to claim 5, characterized in that: Both sides of the lower part of the lower die base (4) are fixedly connected to the upper part of the support block (5), and the lower part of the support block (5) is respectively fixedly connected to both sides of the upper part of the lower die plate (6).

7. The ejector mechanism of the electric vehicle lampshade injection molding mold according to claim 6, characterized in that: A plurality of support columns (9) are fixedly connected to the upper part of the lower mold plate (6), and the upper part of the support columns (9) is inserted into the bottom of the lower mold base (4), and a top plate assembly (7) is slidably connected to the outer part of the support columns (9).

8. The ejector mechanism of the electric vehicle lampshade injection molding mold according to claim 7, characterized in that: The top four corners of the top plate assembly (7) are fixedly connected to top columns (8), and the top of the top column (8) is inserted into the sliding connection lower mold base (4), and at the same time, the top of the top column (8) is tightly fitted with the bottom of the upper mold base (3).

9. The ejector mechanism of the electric vehicle lampshade injection molding mold according to claim 8, characterized in that: The middle part of the ejector plate assembly (7) is fixedly connected to an ejector pin (10), and the top of the ejector pin (10) penetrates into the sliding connection lower die base (4).

10. The ejector mechanism of the electric vehicle lampshade injection molding mold according to claim 9, characterized in that: The top of the ejector pin (10) is inserted into the upper flow channel groove (1101).

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