Secondary ejection mechanism for dense horn holes of automobile door panel die

Abstract

The utility model provides a secondary ejection mechanism for dense horn holes of an automobile door panel mold, and belongs to the technical field of molds. The device comprises an upper die plate and a lower die plate, two forming cavities are symmetrically formed between the upper die plate and the lower die plate, horn hole forming structures are arranged at the corners of the front sides of the forming cavities, and a multi-layer lifting type top plate structure is further arranged on the lower side of the lower die plate. According to the horn hole forming structure, a horn hole structure can be formed on the automobile door panel; the multi-layer lifting type top plate structure is matched with a secondary ejection assembly arranged corresponding to the horn hole forming structure so that vertical thrust can be applied to the periphery of the position of a horn hole structure of a door plate in advance, and the part of the horn hole structure can be separated from a lower mold plate in advance; and synchronous vertical thrust is applied to the position of the horn hole structure and other positions of the automobile door panel through secondary ejection, so that the product is completely ejected out, and the position of the horn hole structure can be prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a secondary ejection mechanism for dense horn holes of an automobile door panel mold. Background Technique

[0002] Automobile door panels are generally injection-molded through molds. In the prior art, automobile door panel molds are generally provided with horn hole forming structures. However, when the automobile door panel is ejected, since the horn hole forming structure is thinner and more fragile than other positions, it is easily damaged during ejection.

[0003] For example, a Chinese patent discloses an injection mold for an automobile door panel [Application No.: 202322398513.X], which includes an upper mold core and a lower mold core, and an injection channel plate is installed at the upper end of the upper mold core. In this injection mold for an automobile door panel, by setting a diversion channel, a cooling channel, an ejection assembly, etc., during injection molding, the injection plastic is diverted through the diversion channel and enters the mold cavity through multiple injection holes. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above problems and provide a secondary ejection mechanism for dense horn holes of an automobile door panel mold.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A secondary ejection mechanism for dense horn holes of an automobile door panel mold includes an upper template and a lower template. Two forming cavities are symmetrically arranged between the upper template and the lower template. A horn hole forming structure is arranged at the front corner of the forming cavity. A multi-layer lifting top plate structure is further arranged on the lower side of the lower template, and a secondary ejection assembly corresponding to the horn hole forming structure is arranged on the multi-layer lifting top plate structure.

[0007] In the above secondary ejection mechanism for dense horn holes of an automobile door panel mold, the multi-layer lifting top plate structure includes an upper top plate, a jacking plate arranged on the upper side of the upper top plate, a lower top plate arranged on the lower side of the upper top plate, and a lifting assembly capable of driving the upper top plate to lift in the vertical direction. There is a movement gap between the upper top plate and the lower top plate. A linkage structure is further arranged between the upper top plate and the lower top plate. The secondary ejection assemblies are respectively connected to the jacking plate and the lower top plate.

[0008] In the above secondary ejection mechanism for dense horn holes of an automobile door panel mold, the horn hole forming structure includes a bottom plate and a horn hole forming block detachably arranged on the bottom plate. The cross-section of the horn hole forming block is circular.

[0009] In the above-mentioned secondary ejection mechanism for dense speaker holes in an automotive door panel mold, the secondary ejection assembly includes four speaker hole internal ejector blocks embedded in the speaker hole forming block, a straight and inclined ejector combined block structure arranged along the circumferential direction of the speaker hole forming block, and a speaker hole external ejector rod arranged along the circumferential direction of the speaker hole forming block. The speaker hole internal ejector blocks and the straight and inclined ejector combined block structure are connected to the lower top plate, and the speaker hole external ejector rod is connected to the upper top plate.

[0010] In the above-mentioned secondary ejection mechanism for dense speaker holes in an automotive door panel mold, an internal straight ejector rod is fixedly connected to the bottom of the speaker hole internal ejector block, and the bottom of the internal straight ejector rod is connected to the lower top plate.

[0011] In the above-mentioned secondary ejection mechanism for dense speaker holes in an automotive door panel mold, the straight and inclined ejector combined block structure includes a number of peripheral straight ejector blocks and peripheral inclined ejector blocks arranged on the periphery of the speaker hole forming block. The peripheral straight ejector blocks are connected to the lower top plate through peripheral straight ejector rods, and the peripheral inclined ejector blocks are connected to the lower top plate through peripheral inclined ejector rods.

[0012] In the above-mentioned secondary ejection mechanism for dense speaker holes in an automotive door panel mold, the lifting assembly includes four lifting drivers. The lifting drivers are fixed on the lower template, and the end of the output shaft of the lifting driver is connected to the upper top plate.

[0013] In the above-mentioned secondary ejection mechanism for dense speaker holes in an automotive door panel mold, the linkage structure includes an external linkage block fixed on the side of the upper top plate. A lifting groove is arranged inside the external linkage block, and an internal linkage block inserted into the lifting groove is fixedly connected to the side of the lower top plate.

[0014] In the above-mentioned secondary ejection mechanism for dense speaker holes in an automotive door panel mold, a base is further arranged on the lower side of the lower template. A vertical sliding sleeve with a vertical sliding groove is arranged on the base, and the external linkage block is inserted into the vertical sliding groove.

[0015] In the above-mentioned secondary ejection mechanism for dense speaker holes in an automotive door panel mold, a number of vertical ejector rods are further arranged on the lower top plate, and a number of inclined ejector blocks are connected through inclined ejector rods on the lower top plate.

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

[0017] 1. The speaker hole forming structure can form a speaker hole structure on the automotive door panel. When the product is ejected, the multi-layer lifting top plate structure cooperates with the secondary ejection assembly arranged corresponding to the speaker hole forming structure, which can apply a vertical thrust to the periphery of the position of the speaker hole structure of the door panel in advance to make a part of the speaker hole structure separate from the lower template first, and then apply a synchronous vertical thrust to the position of the speaker hole structure and the remaining position of the automotive door panel through secondary ejection to completely eject the product, which can avoid damage to the position of the speaker hole structure.

[0018] 2. When the lifting component drives the upper top plate to move upward, it can cooperate with the secondary ejection component to pre-apply a vertical thrust to the periphery of the horn hole structure position of the door panel, so that a part of the horn hole structure is separated from the lower template first. Subsequently, when the upper top plate continues to move upward, it can drive the lower top plate to move upward through the linkage structure to apply a synchronous vertical thrust to the horn hole structure position and the remaining positions of the automotive door panel, so that the product can be completely ejected, and damage to the horn hole structure position can be avoided.

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

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

[0021] Figure 2 is a schematic diagram of the structure of the lower template;

[0022] Figure 3 is a schematic diagram of the partial structure of the present utility model;

[0023] Figure 4 is an enlarged partial view of the present utility model;

[0024] Figure 5 is a schematic diagram of the structure of the horn hole forming structure.

[0025] In the figure, upper template 1, lower template 2, forming cavity 3, horn hole forming structure 4, multi-layer lifting top plate structure 5, secondary ejection component 6, upper top plate 7, lifting plate 8, lower top plate 9, linkage structure 10, bottom plate 11, horn hole forming block 12, horn hole built-in top block 13, straight and inclined top combined top block structure 14, horn hole external ejector rod 15, built-in straight ejector rod 16, peripheral straight top block 17, peripheral inclined top block 18, peripheral straight ejector rod 19, peripheral inclined ejector rod 20, lifting driver 21, external linkage block 22, lifting groove 23, internal linkage block 24, base 25, vertical sliding sleeve 26, vertical ejector rod 27, inclined ejector rod 28, inclined top block 29. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] As Figures 1 - 5 shown, a secondary ejection mechanism for dense horn holes of an automotive door panel mold includes an upper template 1 and a lower template 2. Two forming cavities 3 are symmetrically arranged between the upper template 1 and the lower template 2. A horn hole forming structure 4 is arranged at the front corner of the forming cavity 3. A multi-layer lifting top plate structure 5 is also arranged below the lower template 2. A secondary ejection component 6 corresponding to the horn hole forming structure 4 is arranged on the multi-layer lifting top plate structure 5.

[0027] In the present utility model, the horn hole forming structure 4 can form a horn hole structure on the vehicle door panel. When the product is ejected, the multi-layer lifting top plate structure 5 and the secondary ejection assembly arranged corresponding to the horn hole forming structure 4 can apply a vertical thrust to the periphery of the horn hole structure position of the door panel in advance, so that a part of the horn hole structure is separated from the lower template first, and then a synchronous vertical thrust is applied to the horn hole structure position and the remaining positions of the vehicle door panel through the secondary ejection to completely eject the product, which can avoid damage to the horn hole structure position.

[0028] Specifically, the multi-layer lifting top plate structure 5 includes an upper top plate 7, a lifting plate 8 arranged on the upper side of the upper top plate 7, a lower top plate 9 arranged on the lower side of the upper top plate 7, and a lifting assembly capable of driving the upper top plate 7 to lift in the vertical direction. There is a moving gap between the upper top plate 7 and the lower top plate 9. A linkage structure 10 is also arranged between the upper top plate 7 and the lower top plate 9. The secondary ejection assembly 6 is respectively connected to the lifting plate 8 and the lower top plate 9. When the lifting assembly drives the upper top plate 7 to move upward, it can cooperate with the secondary ejection assembly 6 to apply a vertical thrust to the periphery of the horn hole structure position of the door panel in advance, so that a part of the horn hole structure is separated from the lower template first. Subsequently, when the upper top plate 7 continues to move upward, it can drive the lower top plate to move upward through the linkage structure to apply a synchronous vertical thrust to the horn hole structure position and the remaining positions of the vehicle door panel to completely eject the product, which can avoid damage to the horn hole structure position.

[0029] Specifically, the horn hole forming structure 4 includes a bottom plate 11 and a horn hole forming block 12 detachably arranged on the bottom plate 11. The cross section of the horn hole forming block 12 is circular. The horn hole forming block can form a horn hole structure on the vehicle door panel during injection molding. The horn hole forming block 12 being detachably arranged on the bottom plate can facilitate replacement when damaged and reduce the replacement cost.

[0030] Specifically, the secondary ejection assembly 6 includes four horn hole internal ejector blocks 13 embedded in the horn hole forming block 12, a straight and inclined ejector combined ejector block structure 14 arranged along the circumferential direction of the horn hole forming block 12, and a horn hole external ejector rod 15 arranged along the circumferential direction of the horn hole forming block 12. The horn hole internal ejector blocks 13 and the straight and inclined ejector combined ejector block structure 14 are connected to the lower top plate 9, the horn hole external ejector rod 15 is connected to the upper top plate 7, an internal straight ejector rod 16 is fixedly connected to the bottom of the horn hole internal ejector block 13, and the bottom of the internal straight ejector rod 16 is connected to the lower top plate 9.

[0031] When the upper template moves upward, it can apply a vertical thrust to the periphery of the position of the horn hole structure of the door panel in advance through the external ejector rod 15 outside the horn hole, so that a part of the horn hole structure is separated from the lower template first. Subsequently, when the upper top plate 7 continues to move upward, it can drive the lower top plate to move upward through the linkage structure. It can apply a vertical thrust synchronized with the other positions of the automotive door panel to the position of the horn hole structure through the internal horn hole top block 13 and the combined straight and inclined ejector block structure 14, so that the product can be completely ejected, and damage to the position of the horn hole structure can be avoided.

[0032] Specifically, the combined straight and inclined ejector block structure 14 includes a number of peripheral straight ejector blocks 17 and peripheral inclined ejector blocks 18 arranged outside the horn hole forming block 12. The peripheral straight ejector blocks 17 are connected to the lower top plate 9 through peripheral straight ejector rods 19, and the peripheral inclined ejector blocks 18 are connected to the lower top plate 9 through peripheral inclined ejector rods 20. When the lower top plate moves upward, it can apply a vertical thrust to the periphery of the horn hole structure through the peripheral straight ejector rods 19 and the peripheral straight ejector blocks 17. When the lower top plate moves upward, it can also apply an obliquely upward thrust to the periphery of the horn hole structure through the peripheral inclined ejector rods 20 and the peripheral inclined ejector blocks 18.

[0033] Specifically, the lifting assembly includes four lifting drives 21. The lifting drives 21 are fixed on the lower template 2, and the end of the output shaft of the lifting drive 21 is connected to the upper top plate 7. The synchronous action of the four lifting drives can drive the upper top plate to lift and lower in the vertical direction.

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

[0035] Specifically, the linkage structure 10 includes an external linkage block 22 fixed on the side of the upper top plate 7. A lifting groove 23 is arranged inside the external linkage block 22, and an internal linkage block 24 inserted into the lifting groove 23 is fixedly connected to the side of the lower top plate 9. After the upper template moves upward for a certain distance, it can drive the lower top plate to move vertically upward in cooperation with the internal linkage block through the external linkage block.

[0036] Specifically, a base 25 is further arranged on the lower side of the lower template 2. A vertical sliding sleeve 26 with a vertical sliding groove is arranged on the base 25, and the external linkage block 22 is inserted into the vertical sliding groove. The vertical sliding sleeve can limit the external linkage block 22.

[0037] Specifically, a number of vertical ejector rods 27 are further arranged on the lower top plate 9, and a number of inclined ejector blocks 29 are connected to the lower top plate 9 through inclined ejector rods 28. When the lower top plate moves upward, it can apply a vertically upward thrust to the other positions of the automotive door panel through the number of vertical ejector rods. When the lower top plate moves upward, it can also drive the inclined ejector blocks to apply an obliquely upward thrust to the other positions of the automotive door panel through the inclined ejector rods 28.

[0038] The working principle of the present utility model is as follows: The horn hole forming structure 4 can form a horn hole structure on the automobile door panel. When the product is ejected, the multi-layer lifting top plate structure 5 cooperates with the secondary ejection assembly arranged corresponding to the horn hole forming structure 4 to pre-apply a vertical thrust to the periphery of the position of the horn hole structure of the door panel, so that a part of the horn hole structure is separated from the lower template in advance, and then the secondary ejection applies a synchronous vertical thrust to the position of the horn hole structure and the remaining positions of the automobile door panel to completely eject the product, which can avoid damage to the position of the horn hole structure;

[0039] When the lifting assembly drives the upper top plate 7 to move upward, it can cooperate with the secondary ejection assembly 6 to pre-apply a vertical thrust to the periphery of the position of the horn hole structure of the door panel, so that a part of the horn hole structure is separated from the lower template in advance. Subsequently, when the upper top plate 7 continues to move upward, it can drive the lower top plate to move upward through the linkage structure, apply a synchronous vertical thrust to the position of the horn hole structure and the remaining positions of the automobile door panel to completely eject the product, which can avoid damage to the position of the horn hole structure. The horn hole forming block can form a horn hole structure on the automobile door panel during injection molding. The horn hole forming block 12 is detachably arranged on the bottom plate, which is convenient for replacement when damaged and reduces the replacement cost;

[0040] When the upper template moves upward, it can pre-apply a vertical thrust to the periphery of the position of the horn hole structure of the door panel through the external horn hole ejector rod 15, so that a part of the horn hole structure is separated from the lower template in advance. Subsequently, when the upper top plate 7 continues to move upward, it can drive the lower top plate to move upward through the linkage structure, and can apply a synchronous vertical thrust to the position of the horn hole structure with the remaining positions of the automobile door panel through the internal horn hole block 13 and the straight and inclined ejector block structure 14 to completely eject the product, which can avoid damage to the position of the horn hole structure. When the lower top plate moves upward, it can apply a vertical thrust to the periphery of the horn hole structure through the peripheral straight ejector rod 19 and the peripheral straight ejector block 17. When the lower top plate moves upward, it can also apply an obliquely upward thrust to the periphery of the horn hole structure through the peripheral inclined ejector rod 20 and the peripheral inclined ejector block 18. The four lifting drivers act synchronously to drive the upper top plate to lift in the vertical direction. After the upper template moves upward a certain distance, it can drive the lower top plate to move vertically upward through the external linkage block and the internal linkage block. The vertical sliding sleeve can limit the external linkage block 22;

[0041] When the lower top plate moves upward, it can apply a vertically upward thrust to the remaining positions of the automobile door panel through a plurality of vertical ejector rods. When the lower top plate moves upward, it can also drive the inclined ejector block to apply an obliquely upward thrust to the remaining positions of the automobile door panel through the inclined ejector rod 28.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0043] Although terms such as upper template 1, lower template 2, forming cavity 3, horn hole forming structure 4, multi-layer lifting top plate structure 5, secondary ejection assembly 6, upper top plate 7, lifting plate 8, lower top plate 9, linkage structure 10, bottom plate 11, horn hole forming block 12, horn hole built-in top block 13, straight and inclined ejector combined top block structure 14, horn hole external ejector rod 15, built-in straight ejector rod 16, peripheral straight top block 17, peripheral inclined top block 18, peripheral straight ejector rod 19, peripheral inclined ejector rod 20, lifting drive 21, external linkage block 22, lifting groove 23, internal linkage block 24, base 25, vertical sliding sleeve 26, vertical ejector rod 27, inclined ejector rod 28, inclined top block 29 are used more frequently herein, using these terms is only for more convenient description and explanation of the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A secondary ejection mechanism for dense speaker holes in a car door panel 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 trumpet hole molding structure (4) is arranged at the front corner of the molding cavity (3); a multi-layer lifting top plate structure (5) is also arranged on the lower side of the lower mold plate (2); and a secondary ejection component (6) corresponding to the trumpet hole molding structure (4) is arranged on the multi-layer lifting top plate structure (5).

2. The secondary ejection mechanism for dense speaker holes of automobile door panel mold according to claim 1, characterized in that: The multi-layer lifting top plate structure (5) comprises an upper top plate (7), a lifting plate (8) arranged on the upper side of the upper top plate (7), a lower top plate (9) arranged on the lower side of the upper top plate (7), and a lifting assembly capable of driving the upper top plate (7) to lift and lower in a vertical direction. A moving gap is provided between the upper top plate (7) and the lower top plate (9). A linkage structure (10) is also provided between the upper top plate (7) and the lower top plate (9). The secondary ejection assembly (6) is respectively connected to the lifting plate (8) and the lower top plate (9).

3. The secondary ejection mechanism for dense speaker holes of automobile door panel mold according to claim 2, characterized in that: The speaker hole forming structure (4) comprises a bottom plate (11) and a speaker hole forming block (12) which is detachably arranged on the bottom plate (11); the cross section of the speaker hole forming block (12) is circular.

4. The secondary ejection mechanism for dense speaker holes of automobile door panel mold according to claim 3 is characterized in that: The secondary ejection assembly (6) comprises four built-in trumpet hole ejection blocks (13) embedded in the trumpet hole forming block (12), a straight-slanted top combined ejection block structure (14) arranged along the circumference of the trumpet hole forming block (12), and a trumpet hole external ejection rod (15) arranged along the circumference of the trumpet hole forming block (12); the built-in trumpet hole ejection blocks (13) and the straight-slanted top combined ejection block structure (14) are connected to the lower top plate (9), and the trumpet hole external ejection rod (15) is connected to the upper top plate (7).

5. The secondary ejection mechanism for dense speaker holes of automobile door panel mold according to claim 4, characterized in that: The bottom of the built-in top block (13) of the speaker hole is fixedly connected with a built-in straight top rod (16), and the bottom of the built-in straight top rod (16) is connected to the lower top plate (9).

6. The secondary ejection mechanism for dense speaker holes of automobile door panel mold according to claim 5, characterized in that: The straight-and-inclined-roof combined top block structure (14) comprises a plurality of peripheral straight top blocks (17) and peripheral inclined top blocks (18) arranged on the periphery of the horn hole forming block (12); the peripheral straight top blocks (17) are connected to the lower top plate (9) via peripheral straight top rods (19); and the peripheral inclined top blocks (18) are connected to the lower top plate (9) via peripheral inclined top rods (20).

7. The secondary ejection mechanism for dense speaker holes of automobile door panel mold according to claim 2, characterized in that: The lifting assembly comprises four lifting drivers (21), wherein the lifting drivers (21) are fixed on the lower template (2) and the output shaft ends of the lifting drivers (21) are connected to the upper top plate (7).

8. The secondary ejection mechanism for dense speaker holes of automobile door panel mold according to claim 7, characterized in that: The linkage structure (10) comprises an outer linkage block (22) fixed to the side of the upper top plate (7), a lifting groove (23) is arranged on the inner side of the outer linkage block (22), and an inner linkage block (24) inserted into the lifting groove (23) is fixedly connected to the side of the lower top plate (9).

9. The secondary ejection mechanism for dense speaker holes of automobile door panel mold according to claim 8, characterized in that: A base (25) is also provided on the lower side of the lower template (2), and a vertical sliding sleeve (26) with a vertical sliding groove is provided on the base (25), and the outer linkage block (22) is inserted into the vertical sliding groove.

10. The secondary ejection mechanism for dense speaker holes of automobile door panel mold according to claim 2, characterized in that: The lower top plate (9) is also provided with a plurality of vertical top rods (27), and the lower top plate (9) is also connected with a plurality of inclined top blocks (29) via inclined top rods (28).

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