Large elastic block demolding mechanism of automobile instrument framework mold

Abstract

The utility model provides a large elastic block demolding mechanism of an automobile instrument framework mold, and belongs to the technical field of molds. The die comprises a lower die plate, a left insert and a right insert which are spliced with each other are arranged at the top end of the lower die plate in a protruding mode, and the outer surfaces of the left insert and the right insert form a lower forming face forming a forming cavity. The lower forming face is a part of a forming cavity for forming the automobile instrument framework in an injection molding mode, and the elastic block demolding assembly is arranged at the instrument installation groove forming position on the left insert. The elastic block demolding assembly can apply obliquely upward thrust to the position of an instrument mounting groove of the instrument framework in advance so that the position of the instrument mounting groove of the instrument framework can be separated from the lower mold plate firstly, and therefore the situation that a mounting support is broken during ejection is prevented, and the lifting assembly drives the ejection plate to ascend, and thrust can be applied to the instrument framework through the ejection assembly so that a product can be ejected out. The end core-pulling assembly can automatically pull a core during mold opening.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a large ejector block demoulding mechanism for an automobile instrument skeleton mold. Background Technique

[0002] Automobile instrument skeletons are generally injection-molded through molds. When an automobile instrument skeleton is injection-molded, multiple mounting brackets are generated at the edge of the position of the instrument mounting groove. In the prior art, the instrument mounting groove forming block for injection-molding the instrument mounting groove is ejected by an inclined ejector rod, so that the mounting brackets are gradually separated from the lower template during ejection. However, this demoulding method sometimes causes the mounting brackets to break.

[0003] For example, a Chinese patent discloses a large-scale automobile instrument panel skeleton injection mold [Application No.: 202120752365.5], which includes a top plate and a bottom plate. The bottom of the top plate is provided with an upper template, and the bottom of the upper template is provided with a lower template. The upper template and the lower template are arranged opposite to each other. The top of the top plate is provided with a gate sleeve body, and a pouring port is arranged on the gate sleeve body. The gate sleeve body includes a left gate sleeve and a right gate sleeve. A left insertion piece is arranged on the side wall of the left gate sleeve, a right insertion piece is arranged on the right gate sleeve, a insertion groove adapted to the left insertion piece is arranged on the right insertion piece, a first fixing hole is arranged on the left insertion piece, a second fixing hole is arranged on the right insertion piece. When the left insertion piece is connected to the right insertion piece, the first fixing hole and the second fixing hole overlap. A pouring channel is arranged at the bottom of the gate sleeve body, and the pouring channel includes an upper column and a lower column. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a large ejector block demoulding mechanism for an automobile instrument skeleton mold aiming at the above problems.

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

[0006] A large ejector block demoulding mechanism for an automobile instrument skeleton mold includes a lower template. The top end of the lower template protrudes and is provided with a left insert block and a right insert block that are spliced with each other. The outer surfaces of the left insert block and the right insert block form a lower forming surface that composes a forming cavity. Two end core-pulling components that respectively abut against the left insert block and the right insert block are arranged on both sides of the top of the lower template. A top plate driven by a lifting component is arranged on the lower side of the lower template. An ejecting component connected to the lower forming surface is arranged on the top plate. A ejector block demoulding component connected to the top plate is arranged on the side of the left insert block.

[0007] In the above-mentioned large ejector block demoulding mechanism of the automotive instrument skeleton mould, the ejector block demoulding assembly includes an instrument mounting groove forming block obliquely arranged in the left insert block. The outer end face of the instrument mounting groove forming block is arranged obliquely upward. The instrument mounting groove forming block is rotationally connected through two inclined ejector block ejector rods and a top plate. The inclined ejector block ejector rods are inclined away from the outer end face of the instrument mounting groove forming block. A number of ejector rods perpendicular to the outer end face of the instrument mounting groove forming block are arranged in the instrument mounting groove forming block. A ejector rod driving structure capable of driving the ejector rods to move obliquely upward in a direction perpendicular to the outer end face of the instrument mounting groove forming block is also included.

[0008] In the above-mentioned large ejector block demoulding mechanism of the automotive instrument skeleton mould, the ejector rod driving structure includes a first gas passage arranged in the inclined ejector block ejector rod. An air inlet hose connected to the first gas passage is connected to the bottom of the inclined ejector block ejector rod. A second gas passage connected to the first gas passage and having a number of air outlet ports corresponding to the ejector rods is arranged in the instrument mounting groove forming block. The ejector rods are slidably arranged in the ejector rod mounting grooves in the instrument mounting groove forming block. An annular force-bearing plate is arranged in the middle of the ejector rods. The outer end of the annular force-bearing plate is sealingly connected to the ejector rod mounting groove.

[0009] In the above-mentioned large ejector block demoulding mechanism of the automotive instrument skeleton mould, a recovery spring is also sleeved on the ejector rods. The outer end of the recovery spring is fixedly connected to the reset block at the end of the ejector rods. The inner end of the recovery spring is fixedly connected to the annular force-bearing plate.

[0010] In the above-mentioned large ejector block demoulding mechanism of the automotive instrument skeleton mould, the ejecting assembly includes a number of straight ejector rods vertically fixed on the top plate. Among them, straight ejector blocks are fixedly connected to the tops of some of the straight ejector rods.

[0011] In the above-mentioned large ejector block demoulding mechanism of the automotive instrument skeleton mould, the ejecting assembly further includes two inclined ejector blocks symmetrically arranged on both sides of the instrument mounting groove forming block. The inclined ejector blocks are connected to the top plate through inclined ejector rods, and the inclined ejector rods are inclined away from the instrument mounting groove forming block.

[0012] In the above-mentioned large ejector block demoulding mechanism of the automotive instrument skeleton mould, the lifting assembly includes four lifting drivers fixed on the side of the lower template. The end of the output shaft of the lifting driver is connected to the top plate.

[0013] In the above-mentioned large ejector block demoulding mechanism of the automotive instrument skeleton mould, the end core-pulling assembly includes a slider seat fixed on the lower template. A horizontal chute is recessed inwardly on the slider seat. A core-pulling slider is slidably connected in the horizontal chute. A side insert block is fixedly connected to the inner end of the core-pulling slider. A core-pulling driving structure capable of driving the core-pulling slider to move horizontally outward is also included.

[0014] In the above-mentioned large ejector block demolding mechanism of the automotive instrument skeleton mold, the core-pulling drive structure includes a drive rod arranged obliquely. The drive rod is inserted into the core-pulling slider and is in sliding fit with the core-pulling slider. The top end of the drive rod is fixed on the upper template.

[0015] In the above-mentioned large ejector block demolding mechanism of the automotive instrument skeleton mold, the left insert block and the right insert block are detachably fixed on the lower template by a plurality of screws.

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

[0017] 1. The lower forming surface is a part of the forming cavity for injection molding the automotive instrument skeleton. The ejector block demolding assembly is arranged at the forming position of the instrument installation groove on the left insert block. After the instrument skeleton is injection molded and before the product is ejected, the ejector block demolding assembly can pre-apply an obliquely upward thrust to the instrument installation groove position of the instrument skeleton to separate the instrument installation groove position of the instrument skeleton from the lower template first, so as to prevent the installation bracket from breaking during ejection. The lifting assembly drives the top plate to rise, and the ejection assembly can apply a thrust to the instrument skeleton to eject the product. The end core-pulling assembly can automatically perform core-pulling during mold opening.

[0018] 2. Before the product is ejected, the ejector pin driving structure can drive the ejector pin to move obliquely upward along the direction perpendicular to the outer end face of the instrument installation groove forming block, so as to be able to push the instrument installation bracket generated at the instrument installation groove position outward for a certain distance. Then, the lifting assembly drives the top plate to rise. The rising of the top plate can drive the instrument installation groove forming block to move obliquely upward away from the outer end face of the instrument installation groove forming block through the inclined ejector pin, so that while the instrument installation groove forming block applies a thrust to the product, a horizontal displacement can be generated between the instrument installation groove forming block and the instrument installation groove position of the product, so that the instrument installation bracket at the instrument installation groove position will not be damaged when the product is ejected.

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

[0020] Figure 1 is a schematic diagram of the overall structure of the lower template;

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

[0022] Figure 3 is a schematic diagram of the structure of the ejector block demolding assembly;

[0023] Figure 4 is a cross-sectional view of the ejector block demolding assembly;

[0024] Figure 5It is a schematic internal structure diagram of the forming block for the instrument installation groove.

[0025] In the figure, there are lower template 1, left insert block 2, right insert block 3, lower forming surface 4, end core-pulling assembly 5, lifting assembly 6, top plate 7, ejecting assembly 8, elastic block demolding assembly 9, forming block 10 for instrument installation groove, inclined elastic block ejector rod 11, elastic ejector rod 12, first gas channel 13, intake hose 14, second gas channel 15, elastic ejector rod installation groove 16, recovery spring 17, reset block 18, straight ejector rod 19, straight ejector block 20, inclined ejector block 21, inclined ejector rod 22, lifting driver 23, slider seat 24, horizontal chute 25, core-pulling slider 26, side insert block 27, and driving rod 28. Specific implementation mode

[0026] As Figures 1 - 5 shown, a large elastic block demolding mechanism for an automotive instrument skeleton mold includes a lower template 1. At the top of the lower template 1, there are convexly arranged a left insert block 2 and a right insert block 3 that are joined together. The outer surfaces of the left insert block 2 and the right insert block 3 form a lower forming surface 4 that constitutes a molding cavity. On both sides of the top of the lower template 1, there are provided two end core-pulling assemblies 5 that respectively abut against the left insert block 2 and the right insert block 3. Below the lower template 1, there is a top plate 7 driven by a lifting assembly 6. On the top plate 7, there is an ejecting assembly 8 connected to the lower forming surface 4. On the side of the left insert block 2, there is an elastic block demolding assembly 9 connected to the top plate 7.

[0027] In the present utility model, the lower forming surface 4 is a part of the molding cavity for injection molding the automotive instrument skeleton. The elastic block demolding assembly 9 is arranged at the position of the instrument installation groove on the left insert block. After the instrument skeleton is injection molded and before the product is ejected, the elastic block demolding assembly 9 can apply an obliquely upward thrust to the position of the instrument installation groove of the instrument skeleton in advance to separate the position of the instrument installation groove of the instrument skeleton from the lower template first, so as to prevent the installation bracket from breaking during ejection. The lifting assembly 6 drives the top plate to rise, and the ejecting assembly 8 can apply a thrust to the instrument skeleton to eject the product. The end core-pulling assembly can perform automatic core-pulling during mold opening.

[0028] Specifically, the ejector block demolding assembly 9 includes an instrument mounting groove forming block 10 inclinedly arranged in the left insert block 2. The outer end face of the instrument mounting groove forming block 10 is inclined upward. The instrument mounting groove forming block 10 is rotationally connected through two inclined ejector block ejector rods 11 and a top plate 7. The inclined ejector block ejector rods 11 are inclined away from the outer end face of the instrument mounting groove forming block 10. A number of ejector rods 12 perpendicular to the outer end face of the instrument mounting groove forming block 10 are arranged in the instrument mounting groove forming block 10. It also includes an ejector rod driving structure capable of driving the ejector rods 12 to move obliquely upward along the direction perpendicular to the outer end face of the instrument mounting groove forming block 10. Before the product is ejected, the ejector rod driving structure can drive the ejector rods 12 to move obliquely upward along the direction perpendicular to the outer end face of the instrument mounting groove forming block 10, so as to be able to push the instrument mounting bracket generated at the position of the instrument mounting groove outward for a certain distance. Then, the lifting assembly is driven to raise the top plate. The rising of the top plate can drive the instrument mounting groove forming block to move obliquely upward away from the outer end face of the instrument mounting groove forming block 10 through the inclined ejector block ejector rods 11, so that while the instrument mounting groove forming block 10 applies a thrust to the product, a horizontal displacement can be generated between the instrument mounting groove forming block 10 and the position of the product's instrument mounting groove, so that the instrument mounting bracket at the position of the instrument mounting groove will not be damaged when the product is ejected.

[0029] Specifically, the ejector rod driving structure includes a first gas passage 13 arranged in the inclined ejector block ejector rod 11. An intake hose 14 connected to the first gas passage 13 is connected to the bottom of the inclined ejector block ejector rod 11. A second gas passage 15 connected to the first gas passage 13 and having a number of air outlets corresponding to the ejector rods 12 is arranged in the instrument mounting groove forming block 10. The ejector rod 12 is slidably arranged in an ejector rod mounting groove 16 in the instrument mounting groove forming block 10. An annular force-bearing plate is arranged in the middle of the ejector rod 12, and the outer end of the annular force-bearing plate is hermetically connected to the ejector rod mounting groove 16. The intake hose 14 is externally connected to an air pump, and the air pump can introduce high-pressure gas into the first gas passage 13 through the intake hose. The high-pressure gas in the first gas passage 13 can apply a force to the annular force-bearing plate on the ejector rod 12 through the second gas passage, so as to be able to drive the ejector rod to move obliquely upward along the direction perpendicular to the outer end face of the instrument mounting groove forming block 10.

[0030] Specifically, a recovery spring 17 is also sleeved on the ejector rod 12. The outer end of the recovery spring 17 is fixedly connected to a reset block 18 at the end of the ejector rod 12, and the inner end of the recovery spring 17 is fixedly connected to the annular force-bearing plate. The recovery spring 17 and the reset block can drive the ejector rod to reset after the high-pressure gas supply is stopped.

[0031] Specifically, the ejection assembly 8 includes a number of straight ejector rods 19 vertically fixed on the top plate 7. Among them, the top ends of some of the straight ejector rods 19 are fixedly connected with straight ejector blocks 20. When the top plate moves upward, it can apply a vertically upward thrust to the product through the straight ejector rods and the straight ejector blocks, so as to eject the product.

[0032] Specifically, the ejection assembly 8 further includes two inclined ejector blocks 21 symmetrically arranged on both sides of the instrument installation groove forming block 10. The inclined ejector blocks 21 are connected to the top plate 7 through inclined ejector rods 22, and the inclined ejector rods 22 are inclined away from the instrument installation groove forming block 10. When the top plate moves upward, it can also drive the inclined ejector blocks 21 to move obliquely upward away from the instrument installation groove forming block 10 through the inclined ejector rods to apply an obliquely upward thrust to the product.

[0033] Specifically, the lifting assembly 6 includes four lifting drivers 23 fixed on the side of the lower template 1. The end of the output shaft of the lifting driver 23 is connected to the top plate 7. The synchronous action of the four lifting drivers can drive the top plate to lift and lower in the vertical direction.

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

[0035] Specifically, the end core-pulling assembly 5 includes a slider seat 24 fixed on the lower template 1. A horizontal chute 25 is recessed inwardly on the slider seat 24. A core-pulling slider 26 is slidably connected in the horizontal chute 25. The inner end of the core-pulling slider 26 is fixedly connected with a side insert block 27. It further includes a core-pulling driving structure capable of driving the core-pulling slider 26 to move horizontally outward. The core-pulling driving structure includes an inclined driving rod 28. The driving rod 28 is inserted into the core-pulling slider 26 and is slidably matched with the core-pulling slider 26. The top end of the driving rod 28 is fixed on the upper template. When the mold is opened, the upward movement of the upper template can drive the driving rod to move vertically upward, and the vertical upward movement of the driving rod can drive the core-pulling slider to move horizontally outward away from the lower template, so that the side insert block can be separated from the product.

[0036] Preferably, the left insert block 2 and the right insert block 3 are detachably fixed on the lower template 1 through a number of screws.

[0037] The working principle of the present utility model is as follows: The lower forming surface 4 is a part of the forming cavity for injection molding the automotive instrument skeleton. The elastic block demolding assembly 9 is arranged at the instrument installation groove forming position on the left insert block. After the instrument skeleton is injection molded and before the product is ejected, the elastic block demolding assembly 9 can apply an obliquely upward thrust to the instrument installation groove position of the instrument skeleton in advance to separate the instrument installation groove position of the instrument skeleton from the lower template first, so as to prevent the installation bracket from breaking during ejection. The lifting assembly 6 drives the top plate to rise, and can apply a thrust to the instrument skeleton through the ejection assembly 8 to eject the product. The end core-pulling assembly can automatically perform core-pulling during mold opening;

[0038] Before the product is ejected, the ejector rod driving structure can drive the ejector rod 12 to move obliquely upward along the direction perpendicular to the outer end face of the instrument installation groove forming block 10, so as to push the instrument installation bracket generated at the position of the instrument installation groove outward for a certain distance. Then, the lifting assembly drives the top plate to rise. When the top plate rises, it can drive the instrument installation groove forming block to move obliquely upward away from the outer end face of the instrument installation groove forming block 10 through the inclined ejector rod 11, so that while the instrument installation groove forming block 10 applies a thrust to the product, it can also cause a horizontal displacement between the instrument installation groove forming block 10 and the instrument installation groove position of the product. Thus, when the product is ejected, the instrument installation bracket at the position of the instrument installation groove will not be damaged. The intake hose 14 is externally connected to an air pump, and the air pump can introduce high-pressure gas into the first gas channel 13 through the intake hose. The high-pressure gas in the first gas channel 13 can apply a force to the annular force-bearing plate on the ejector rod 12 through the second gas channel, so as to drive the ejector rod to move obliquely upward along the direction perpendicular to the outer end face of the instrument installation groove forming block 10. The return spring 17 and the reset block can drive the ejector rod to reset after stopping the introduction of high-pressure gas;

[0039] When the top plate moves upward, it can apply a vertically upward thrust to the product through the straight ejector rod and the straight ejector block, so as to eject the product. When the top plate moves upward, it can also drive the inclined ejector block 21 to move obliquely upward away from the instrument installation groove forming block 10 through the inclined ejector rod, applying an obliquely upward thrust to the product. The four lifting drivers act synchronously to drive the top plate to lift and lower in the vertical direction. When the mold is opened, the upward movement of the upper template can drive the driving rod to move vertically upward, and the vertical upward movement of the driving rod can drive the core-pulling slider to move horizontally outward away from the lower template, so as to separate the side insert block from the product.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although the following template 1, left insert block 2, right insert block 3, lower forming surface 4, end core-pulling assembly 5, lifting assembly 6, top plate 7, ejecting assembly 8, elastic block demolding assembly 9, instrument installation groove forming block 10, inclined elastic block ejector rod 11, elastic ejector rod 12, first gas channel 13, intake hose 14, second gas channel 15, elastic ejector rod installation groove 16, recovery spring 17, reset block 18, straight ejector rod 19, straight ejector block 20, inclined ejector block 21, inclined ejector rod 22, lifting driver 23, slider seat 24, horizontal chute 25, core-pulling slider 26, side insert block 27, drive rod 28, etc. are used more frequently in this text, the use of these terms is only for more convenient description and explanation of the essence of the present utility model; interpreting them as any kind of additional limitation is contrary to the spirit of the present utility model.

Claims

1. An ejection mechanism for a large elastic block of an automotive instrument skeleton mold, including a lower template (1), characterized in that, At the top of the lower template (1), a left insert block (2) and a right insert block (3) that fit together are protrudingly provided. The outer surfaces of the left insert block (2) and the right insert block (3) form a lower forming surface (4) that constitutes a forming cavity. At both sides of the top of the lower template (1), two end core-pulling assemblies (5) that respectively abut against the left insert block (2) and the right insert block (3) are provided. At the lower side of the lower template (1), a top plate (7) driven by a lifting assembly (6) is provided. On the top plate (7), an ejecting assembly (8) connected to the lower forming surface (4) is provided. At the side of the left insert block (2), a spring block demolding assembly (9) connected to the top plate (7) is provided.

2. The large ejector block demolding mechanism of the automotive instrument skeleton mold according to claim 1, characterized in that, The spring block demolding assembly (9) includes an instrument mounting groove forming block (10) obliquely arranged in the left insert block (2). The outer end face of the instrument mounting groove forming block (10) is obliquely upward. The instrument mounting groove forming block (10) is rotationally connected to the top plate (7) through two inclined spring block ejecting rods (11). The inclined spring block ejecting rods (11) are inclined away from the outer end face of the instrument mounting groove forming block (10). In the instrument mounting groove forming block (10), a number of ejecting rods (12) perpendicular to the outer end face of the instrument mounting groove forming block (10) are provided. It also includes an ejecting rod driving structure that can drive the ejecting rods (12) to move obliquely upward in a direction perpendicular to the outer end face of the instrument mounting groove forming block (10).

3. The large ejector block demolding mechanism of the automotive instrument skeleton mold according to claim 2, wherein The ejecting rod driving structure includes a first gas channel (13) arranged in the inclined spring block ejecting rod (11). At the bottom of the inclined spring block ejecting rod (11), an air inlet hose (14) connected to the first gas channel (13) is connected. In the instrument mounting groove forming block (10), a second gas channel (15) connected to the first gas channel (13) and having a number of air outlet ports corresponding to the ejecting rods (12) is provided. The ejecting rods (12) are slidably arranged in the ejecting rod mounting grooves (16) in the instrument mounting groove forming block (10). In the middle of the ejecting rods (12), an annular force-bearing plate is provided, and the outer end of the annular force-bearing plate is sealingly connected to the ejecting rod mounting grooves (16).

4. The large ejector block demolding mechanism of the automotive instrument skeleton mold according to claim 3, characterized in that, A recovery spring (17) is also sleeved on the ejecting rods (12). The outer end of the recovery spring (17) is fixedly connected to a reset block (18) at the end of the ejecting rods (12). The inner end of the recovery spring (17) is fixedly connected to the annular force-bearing plate.

5. The large ejector block demolding mechanism of the automotive instrument skeleton mold according to claim 2, characterized in that, The ejecting assembly (8) includes a number of straight ejecting rods (19) vertically fixed on the top plate (7). Among them, the tops of some of the straight ejecting rods (19) are fixedly connected with straight ejecting blocks (20).

6. The large ejector block demolding mechanism of the automotive instrument skeleton mold according to claim 5, characterized in that The ejecting assembly ( 7. The large ejector block demolding mechanism for the automotive instrument skeleton mold according to claim 5, characterized in that, ​ 8. The large ejector block demolding mechanism of the automotive instrument skeleton mold according to claim 1, characterized in that, The described end core-pulling assembly (5) includes a slider seat (24) fixed on the lower template (1). An inwardly concave horizontal chute (25) is provided on the slider seat (24). A core-pulling slider (26) is slidably connected in the horizontal chute (25). A side insert block (27) is fixedly connected to the inner end of the core-pulling slider (26). It also includes a core-pulling driving structure capable of driving the core-pulling slider (26) to move horizontally outwards.

9. The large ejector block demolding mechanism of the automotive instrument skeleton mold according to claim 8, characterized in that, The described core-pulling driving structure includes an inclined driving rod (28). The driving rod (28) is inserted into the core-pulling slider (26) and is slidably matched with the core-pulling slider (26). The top end of the driving rod (28) is fixed on the upper template.

10. The large ejector block demolding mechanism of the automotive instrument skeleton mold according to claim 1, characterized in that The left insert block (2) and the right insert block (3) are detachably fixed on the lower template (1) by a plurality of screws.

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