Automobile pillar mold low pressure injection molding mechanism

Abstract

The utility model provides a low-pressure injection molding mechanism for an automobile pillar mold, which belongs to the field of mold technology. It includes an upper template and a lower template, wherein two molding cavities are symmetrically arranged between the upper template and the lower template, a lower mold insert is integrally formed with a protruding arrangement on the lower template, a top plate is arranged on the lower side of the lower template, and an integrated inclined top assembly and a split inclined top assembly connected to the top plate are respectively arranged on the inner and outer sides of the molding cavity. The fabric is arranged in the molding cavity of the upper template, and the injection molding liquid is injected into the molding cavity to form an automobile pillar product combined with the fabric by injection molding. The No. 1 translation core pulling assembly can directly form an inner concave structure at the straight end of the pillar product when the pillar product is injected, and the inclined core pulling assembly and the No. 2 translation core pulling assembly can form an inner concave structure at the arc end of the pillar product, so there is no need to perform post-processing on the pillar product, thereby reducing the cumbersome processing steps in the later stage.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a low-pressure injection molding mechanism for an automobile column mold. Background Art

[0002] Low-pressure injection molding is to cut the decorative fabric into certain specifications, place the fabric in a special injection mold, and then directly perform overall injection molding; this process is to directly inject the plastic melt on the back of the fabric, the plastic melt is bonded to the fabric in a molten state, and then cool and open the mold, at this time, a product with the fabric and the plastic body perfectly bonded is obtained; because the plastic body is covered with fabric, the process in the later product processing is very cumbersome, and the existing automobile pillar mold cannot form an inner concave structure at both ends of the pillar product at one time during production, which creates certain difficulties for later processing, so it is necessary to design an automobile pillar mold that can complete the inner concave structure at both ends of the automobile pillar in the mold at one time.

[0003] For example, a Chinese patent discloses a low-pressure injection mold [application number: 201621492111.X], which includes a fixed mold and a movable mold. The movable mold includes a bottom plate, a cavity and a plurality of cloth-hanging needles. The top end of each cloth-hanging needle is spaced apart from the plastic part formed in the cavity, and the cloth covers the top of the cavity; the fixed mold includes a base, a hot runner plate, a core and a plurality of cloth-pressing mechanisms; each cloth-pressing mechanism is spaced apart and is a nitrogen spring. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a low-pressure injection molding mechanism for an automobile pillar mold.

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

[0006] A low-pressure injection molding mechanism for an automobile pillar mold comprises an upper mold plate and a lower mold plate, two molding cavities are symmetrically arranged between the upper mold plate and the lower mold plate, a lower mold insert is integrally formed on the lower mold plate and a top plate is arranged on the lower side of the lower mold plate, an integral inclined top assembly and a split inclined top assembly connected to the top plate are respectively arranged on the inner and outer sides of the molding cavity, a No. 1 translation core pulling assembly is arranged at the straight end of the molding cavity, an inclined core pulling assembly is arranged at the arc end of the molding cavity, and a No. 2 translation core pulling assembly arranged opposite to the No. 1 translation core pulling assembly is also arranged on the side of the inclined core pulling assembly.

[0007] In the above-mentioned low-pressure injection molding mechanism of the automobile pillar mold, the No. 1 translation core pulling assembly includes a No. 1 translation core block horizontally arranged on the lower template, the inner end insert of the No. 1 translation core block is inserted into the straight end of the molding cavity, and also includes a No. 1 core pulling drive structure connected to the No. 1 translation core block.

[0008] In the above-mentioned automobile pillar mold low-pressure injection molding mechanism, the No. 1 core-pulling drive structure includes a No. 1 drive rod obliquely fixed on the upper mold plate, and the No. 1 drive rod is obliquely inserted into the outer end of the No. 1 translation core block and slidingly cooperates with the No. 1 translation core block.

[0009] In the above-mentioned low-pressure injection molding mechanism of the automobile pillar mold, the No. 2 translation core pulling assembly includes a No. 2 translation core block horizontally arranged on the lower template, the inner end insert of the No. 2 translation core block is inserted into the arc-shaped end side of the molding cavity, and also includes a No. 2 core pulling drive structure connected to the No. 2 translation core block.

[0010] In the above-mentioned automobile pillar mold low-pressure injection molding mechanism, the No. 2 core-pulling drive structure includes a No. 2 drive rod obliquely fixed on the upper mold plate, and the No. 2 drive rod is obliquely inserted into the outer end of the No. 2 translation core block and slidingly cooperates with the No. 2 translation core block.

[0011] In the above-mentioned low-pressure injection molding mechanism of the automobile pillar mold, the inclined core pulling assembly includes an inclined core block obliquely arranged on the lower mold plate, the inner end insert of the inclined core block is obliquely inserted upward into the arc-shaped end of the molding cavity, and also includes a No. 3 core pulling drive structure connected to the inclined core block. Two limiting pressure plates with guide inclined surfaces at the bottom are also provided on both sides of the inclined core block.

[0012] In the above-mentioned automobile pillar mold low-pressure injection molding mechanism, the No. 3 core-pulling drive structure includes a No. 3 drive rod obliquely fixed on the upper mold plate, and the No. 3 drive rod is obliquely inserted into the outer end of the inclined core block and slidably cooperates with the inclined core block.

[0013] In the above-mentioned low-pressure injection molding mechanism of the automobile pillar mold, the integrated inclined ejector assembly includes a No. 1 inclined ejector block arranged on the inner side of the molding cavity, one side of the No. 1 inclined ejector block is connected to the molding cavity and both ends of the No. 1 inclined ejector block extend from the straight end of the molding cavity to the arc end, and a plurality of No. 1 inclined ejector rods are fixedly connected to the bottom of the No. 1 inclined ejector block, and the No. 1 inclined ejector rods are inclined toward the center side of the lower template and the bottom and the top plate are hinged.

[0014] In the above-mentioned low-pressure injection molding mechanism of the automobile pillar mold, a plurality of positioning blocks are protruding from the top end of the No. 1 inclined top block.

[0015] In the above-mentioned low-pressure injection molding mechanism of the automobile pillar mold, the split inclined ejector assembly includes a plurality of No. 2 inclined ejector blocks arranged on the lower mold insert, the bottom of the No. 2 inclined ejector block is fixedly connected with an inclined No. 2 inclined ejector rod, and the bottom of the No. 2 inclined ejector rod is hinged to the top plate.

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

[0017] 1. The fabric is set in the molding cavity of the upper template, and the molding liquid is injected into the molding cavity to form an automobile pillar product combined with the fabric. The No. 1 translation core-pulling component can directly form a concave structure at the straight end of the pillar product during the injection molding of the pillar product. The inclined core-pulling component and the No. 2 translation core-pulling component can form a concave structure at the arc end of the pillar product. Therefore, there is no need to perform post-processing on the pillar product, thereby reducing the cumbersome processing steps in the later stage. After the product is injection molded, the upward movement of the top plate can drive the integrated inclined top component and the split inclined top component to move upward, thereby applying an oblique upward thrust to the inner and outer sides of the product, thereby ejecting the product from the lower template.

[0018] 2. The inner end insert of the No. 1 translation core block is horizontally inserted into the molding cavity, so that an inner concave structure can be formed at the straight end of the product during product injection molding. Therefore, there is no need to perform post-processing on the column product, thereby reducing the tedious post-processing steps. When the mold is opened, the upper template moves upward to drive the No. 1 driving rod to move vertically upward, thereby driving the No. 1 translation core block to move horizontally away from the molding cavity, so that the inner end insert on the No. 1 translation core block is separated from the product.

[0019] 3. The inner end insert of the No. 2 translation core block is horizontally inserted into the molding cavity, so that an inner concave structure can be formed on the arc-shaped end side of the product during product injection molding. Therefore, there is no need to perform post-processing on the column product, thereby reducing the tedious post-processing steps. When the mold is opened, the upper template moves upward to drive the No. 2 drive rod to move vertically upward, thereby driving the No. 2 translation core block to move horizontally away from the molding cavity, so that the inner end insert on the No. 2 translation core block is separated from the product.

[0020] 4. The inner end insert of the inclined core block is inserted obliquely upward into the arc-shaped end of the molding cavity, so that an inner concave structure can be formed at the arc-shaped end of the product during product injection molding. Therefore, there is no need to perform post-processing on the column product, thereby reducing the tedious post-processing steps. When the mold is opened, the upward movement of the upper template can drive the No. 3 drive rod to move vertically upward, thereby driving the No. 3 translation core block to move obliquely downward away from the molding cavity, so that the inner end insert on the No. 3 translation core block is separated from the product.

[0021] 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

[0022] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0023] Figure 2 It is a structural diagram of the lower template;

[0024] Figure 3 It is a schematic diagram of the local structure of the lower template;

[0025] Figure 4 This is a partial enlarged view of the lower template.

[0026] In the figure, an upper template 1, a lower template 2, a molding cavity 3, a lower mold insert 4, a top plate 5, an integrated inclined top assembly 6, a split inclined top assembly 7, a No. 1 translational core pulling assembly 8, an inclined core pulling assembly 9, a No. 2 translational core pulling assembly 10, a No. 1 translational core block 11, a No. 1 driving rod 12, a No. 2 translational core block 13, a No. 2 driving rod 14, an inclined core block 15, a limiting pressure plate 16, a No. 3 driving rod 17, a No. 1 inclined top block 18, a No. 1 inclined top rod 19, a positioning block 20, a No. 2 inclined top block 21, and a No. 2 inclined top rod 22. DETAILED DESCRIPTION

[0027] like Figure 1-Figure 4 As shown, a low-pressure injection molding mechanism of an automobile pillar mold comprises an upper mold plate 1 and a lower mold plate 2, two molding cavities 3 are symmetrically arranged between the upper mold plate 1 and the lower mold plate 2, a lower mold insert 4 protrudingly arranged is integrally formed on the lower mold plate 2, a top plate 5 is arranged on the lower side of the lower mold plate 2, an integral inclined top assembly 6 and a split inclined top assembly 7 connected to the top plate 5 are respectively arranged on the inner and outer sides of the molding cavity 3, a No. 1 translation core pulling assembly 8 is arranged at the straight end of the molding cavity 3, an inclined core pulling assembly 9 is arranged at the arc end of the molding cavity 3, and a No. 2 translation core pulling assembly 10 arranged opposite to the No. 1 translation core pulling assembly 8 is also arranged on the side of the inclined core pulling assembly 9.

[0028] In the utility model, the fabric is arranged in the molding cavity of the upper template, and the molding liquid is injected into the molding cavity to form an automobile pillar product combined with the fabric. The No. 1 translation core pulling component 8 can directly form a concave structure at the straight end of the pillar product when the pillar product is injected. The inclined core pulling component 9 and the No. 2 translation core pulling component 10 can form a concave structure at the arc end of the pillar product. Therefore, there is no need to perform post-processing on the pillar product, thereby reducing the cumbersome post-processing steps. After the product is injection molded, the upward movement of the top plate can drive the integrated inclined top component 6 and the split inclined top component 7 to move upward, thereby applying an oblique upward thrust to the inner and outer sides of the product, thereby ejecting the product from the lower template.

[0029] Specifically, the No. 1 translation core-pulling assembly 8 includes a No. 1 translation core block 11 horizontally arranged on the lower template 2, the inner end insert of the No. 1 translation core block 11 is inserted into the straight end of the molding cavity 3, and also includes a No. 1 core-pulling driving structure connected to the No. 1 translation core block 11, and the No. 1 core-pulling driving structure includes a No. 1 driving rod 12 obliquely fixed on the upper template 1, and the No. 1 driving rod 12 is obliquely inserted into the outer end of the No. 1 translation core block 11 and slidably cooperates with the No. 1 translation core block 11. The inner end insert of the No. 1 translation core block 11 is horizontally inserted into the molding cavity, which can form an inner concave structure at the straight end of the product during product injection molding, so there is no need to perform post-processing on the column product, thereby reducing the cumbersome post-processing steps. When the mold is opened, the upper template moves upward to drive the No. 1 driving rod to move vertically upward, thereby driving the No. 1 translation core block 11 to move horizontally away from the molding cavity, so that the inner end insert on the No. 1 translation core block 11 is separated from the product.

[0030] Specifically, the No. 2 translation core-pulling assembly 10 includes a No. 2 translation core block 13 horizontally arranged on the lower template 2, the inner end insert of the No. 2 translation core block 13 is inserted into the arc-shaped end side of the molding cavity 3, and also includes a No. 2 core-pulling driving structure connected to the No. 2 translation core block 13, and the No. 2 core-pulling driving structure includes a No. 2 driving rod 14 obliquely fixed on the upper template 1, and the No. 2 driving rod 14 is obliquely inserted into the outer end of the No. 2 translation core block 13 and slidably cooperates with the No. 2 translation core block 13. The inner end insert of the No. 2 translation core block 13 is horizontally inserted into the molding cavity, which can form an inner concave structure on the arc-shaped end side of the product during product injection molding, so there is no need to perform post-processing on the column product, thereby reducing the cumbersome post-processing steps. When the mold is opened, the upper template moves upward to drive the No. 2 driving rod to move vertically upward, thereby driving the No. 2 translation core block to move horizontally away from the molding cavity, so that the inner end insert on the No. 2 translation core block is separated from the product.

[0031] Specifically, the inclined core pulling assembly 9 includes an inclined core block 15 obliquely arranged on the lower mold plate 2, the inner end insert of the inclined core block 15 is obliquely inserted upward into the arc-shaped end of the molding cavity 3, and also includes a No. 3 core pulling drive structure connected to the inclined core block 15, and two limiting pressure plates 16 with guide inclined surfaces at the bottom ends are also provided on both sides of the inclined core block 15. The No. 3 core pulling drive structure includes a No. 3 drive rod 17 obliquely fixed on the upper mold plate 1, and the No. 3 drive rod 17 is obliquely inserted into the outer end of the inclined core block 15 and slidably cooperates with the inclined core block 15. The inner end insert of the inclined core block 15 is inserted obliquely upward into the arc-shaped end of the molding cavity 3, so that an inner concave structure can be formed at the arc-shaped end of the product during product injection molding. Therefore, there is no need to perform post-processing on the column product, thereby reducing the cumbersome post-processing steps. When the mold is opened, the upward movement of the upper template can drive the No. 3 driving rod to move vertically upward, thereby driving the No. 3 translation core block to move obliquely downward away from the molding cavity, so that the inner end insert on the No. 3 translation core block is separated from the product.

[0032] Specifically, the integrated inclined lift assembly 6 includes a No. 1 inclined lift block 18 arranged on the inner side of the forming cavity 3, one side of the No. 1 inclined lift block 18 is connected to the forming cavity 3 and both ends of the No. 1 inclined lift block 18 extend from the straight end to the arc end of the forming cavity 3, and a plurality of No. 1 inclined lift rods 19 are fixedly connected to the bottom of the No. 1 inclined lift block 18, and the No. 1 inclined lift rods 19 are inclined toward the center side of the lower template 2 and are hinged to the top plate 5 at the bottom. When the top plate moves upward, the No. 1 inclined ejector block 18 can be driven by a number of No. 1 inclined ejector rods to apply an oblique upward thrust to the inner side of the column product. A number of positioning blocks 20 are protruding from the top of the No. 1 inclined ejector block 18, and the number of positioning blocks can be positioned when the mold is closed. The split inclined ejector assembly 7 includes a number of No. 2 inclined ejector blocks 21 arranged on the lower mold insert 4. The bottom of the No. 2 inclined ejector block 21 is fixedly connected with an obliquely arranged No. 2 inclined ejector rod 22, and the bottom of the No. 2 inclined ejector rod 22 is hinged to the top plate 5. When the top plate moves upward, the No. 2 inclined ejector block can also be driven by the No. 2 inclined ejector rod to move obliquely upward, thereby applying an oblique upward thrust to the product itself.

[0033] The working principle of the utility model is as follows: the fabric is set in the molding cavity of the upper template, and the injection molding liquid is injected into the molding cavity to form an automobile pillar product combined with the fabric. The No. 1 translation core pulling component 8 can directly form a concave structure at the straight end of the pillar product when the pillar product is injected. The inclined core pulling component 9 and the No. 2 translation core pulling component 10 can form a concave structure at the arc end of the pillar product. Therefore, there is no need to perform post-processing on the pillar product, thereby reducing the cumbersome processing steps in the later stage. After the product is injection molded, the upward movement of the top plate can drive the integrated inclined top component 6 and the split inclined top component 7 to move upward, thereby applying an oblique upward thrust to the inner and outer sides of the product, thereby ejecting the product from the lower template;

[0034] The inner end insert of the No. 1 translation core block 11 is horizontally inserted into the molding cavity, which can form a concave structure at the straight end of the product when the product is injected. Therefore, there is no need to perform post-processing on the column product, thereby reducing the cumbersome processing steps in the later stage. When opening the mold, the upper template moves upward to drive the No. 1 driving rod to move vertically upward, thereby driving the No. 1 translation core block 11 to move horizontally away from the molding cavity, so that the inner end insert on the No. 1 translation core block 11 is separated from the product, and the inner end insert of the No. 2 translation core block 13 is horizontally inserted into the molding cavity, which can form a concave structure on the arc-shaped end side of the product when the product is injected. Therefore, there is no need to perform post-processing on the column product, thereby reducing the cumbersome processing steps in the later stage. Processing steps: when the mold is opened, the upper template moves upward to drive the No. 2 driving rod to move vertically upward, thereby driving the No. 2 translation core block to move horizontally away from the molding cavity, so that the inner end insert on the No. 2 translation core block is separated from the product, and the inner end insert of the inclined core block 15 is inserted obliquely upward into the arc-shaped end of the molding cavity 3, so that an inner concave structure can be formed at the arc-shaped end of the product during product injection molding. Therefore, there is no need to perform post-processing on the column product, thereby reducing the cumbersome post-processing steps. When the mold is opened, the upper template moves upward to drive the No. 3 driving rod to move vertically upward, thereby driving the No. 3 translation core block to move obliquely downward away from the molding cavity, so that the inner end insert on the No. 3 translation core block is separated from the product;

[0035] When the top plate moves upward, the No. 1 inclined ejector block 18 can be driven by a number of No. 1 inclined ejector rods to apply an oblique upward thrust to the inner side of the column product. A number of positioning blocks can be used for positioning during mold closing. When the top plate moves upward, the No. 2 inclined ejector block can be driven by a number of No. 2 inclined ejector rods to move obliquely upward, thereby applying an oblique upward thrust to the product itself.

[0036] 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.

[0037] Although this article uses the upper template 1, the lower template 2, the molding cavity 3, the lower mold insert 4, the top plate 5, the integrated inclined ejector assembly 6, the split inclined ejector assembly 7, the No. 1 translation core pulling assembly 8, the inclined core pulling assembly 9, the No. 2 translation core pulling assembly 10, the No. 1 translation core block 11, the No. 1 driving rod 12, the No. 2 translation core block 13, the No. 2 driving rod 14, the inclined core block 15, the limiting pressure plate 16, the No. 3 driving rod 17, the No. 1 inclined ejector block 18, the No. 1 inclined ejector rod 19, the positioning block 20, the No. 2 inclined ejector block 21, the No. 2 inclined ejector rod 22, etc. more frequently, 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 low-pressure injection molding mechanism for an automobile pillar mold, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: Two molding cavities (3) are symmetrically arranged between the upper mold plate (1) and the lower mold plate (2); a protruding lower mold insert (4) is integrally formed on the lower mold plate (2); a top plate (5) is arranged on the lower side of the lower mold plate (2); an integral inclined top assembly (6) and a split inclined top assembly (7) connected to the top plate (5) are respectively arranged on the inner and outer sides of the molding cavity (3); a No. 1 translation core pulling assembly (8) is arranged at the straight end of the molding cavity (3); an inclined core pulling assembly (9) is arranged at the arc end of the molding cavity (3); and a No. 2 translation core pulling assembly (10) is also arranged on the side of the inclined core pulling assembly (9) opposite to the No. 1 translation core pulling assembly (8).

2. The low-pressure injection molding mechanism for automobile pillar mold according to claim 1, characterized in that: The No. 1 translation core-pulling assembly (8) comprises a No. 1 translation core block (11) horizontally arranged on the lower template (2), the inner end insert of the No. 1 translation core block (11) is inserted into the straight end of the molding cavity (3), and also comprises a No. 1 core-pulling driving structure connected to the No. 1 translation core block (11).

3. The low-pressure injection molding mechanism for automobile pillar mold according to claim 2, characterized in that: The No. 1 core-pulling driving structure comprises a No. 1 driving rod (12) obliquely fixed on the upper mold plate (1); the No. 1 driving rod (12) is obliquely inserted into the outer end of the No. 1 translation core block (11) and slidably cooperates with the No. 1 translation core block (11).

4. The low-pressure injection molding mechanism for automobile pillar mold according to claim 1, characterized in that: The No. 2 translation core-pulling assembly (10) comprises a No. 2 translation core block (13) horizontally arranged on the lower template (2), the inner end insert of the No. 2 translation core block (13) being inserted into the arc-shaped end side of the molding cavity (3), and also comprises a No. 2 core-pulling driving structure connected to the No. 2 translation core block (13).

5. The low-pressure injection molding mechanism for automobile pillar mold according to claim 4, characterized in that: The No. 2 core-pulling driving structure comprises a No. 2 driving rod (14) obliquely fixed on the upper mold plate (1); the No. 2 driving rod (14) is obliquely inserted into the outer end of the No. 2 translation core block (13) and slidably cooperates with the No. 2 translation core block (13).

6. The low-pressure injection molding mechanism for automobile pillar mold according to claim 1, characterized in that: The inclined core pulling assembly (9) includes an inclined core block (15) obliquely arranged on the lower mold plate (2), the inner end insert of the inclined core block (15) is obliquely inserted upward into the arc-shaped end of the molding cavity (3), and also includes a No. 3 core pulling drive structure connected to the inclined core block (15), and two limiting pressure plates (16) with guiding inclined surfaces at the bottom ends are also provided on both sides of the inclined core block (15).

7. The low-pressure injection molding mechanism for automobile pillar mold according to claim 6, characterized in that: The No. 3 core-pulling driving structure comprises a No. 3 driving rod (17) obliquely fixed on the upper mold plate (1), and the No. 3 driving rod (17) is obliquely inserted into the outer end of the inclined core block (15) and slidably cooperates with the inclined core block (15).

8. The low-pressure injection molding mechanism for automobile pillar mold according to claim 7, characterized in that: The integrated inclined top assembly (6) includes a No. 1 inclined top block (18) arranged on the inner side of the molding cavity (3), one side of the No. 1 inclined top block (18) is connected to the molding cavity (3) and both ends of the No. 1 inclined top block (18) extend from the straight end to the arc end of the molding cavity (3), and a plurality of No. 1 inclined top rods (19) are fixedly connected to the bottom of the No. 1 inclined top block (18), and the No. 1 inclined top rods (19) are inclined toward the center side of the lower template (2) and the bottom is hinged to the top plate (5).

9. The low-pressure injection molding mechanism for automobile pillar mold according to claim 8, characterized in that: A plurality of positioning blocks (20) are protruding from the top end of the No. 1 inclined top block (18).

10. The low-pressure injection molding mechanism for automobile pillar mold according to claim 1, characterized in that: The split type inclined ejector assembly (7) comprises a plurality of No. 2 inclined ejector blocks (21) arranged on the lower mold insert (4), the bottom of the No. 2 inclined ejector blocks (21) is fixedly connected with an inclined No. 2 inclined ejector rod (22), and the bottom of the No. 2 inclined ejector rod (22) is hinged to the ejector plate (5).

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