Horizontal reverse core-pulling structure

Abstract

The utility model belongs to the technical field of car lamp injection molds, and particularly relates to a horizontal reverse core-pulling structure which comprises an inner pulling core, a pulling block, a driving assembly and a cover plate, the pull block is arranged on the cover plate in a sliding manner; the inner pulling core is erected on the pulling block, a second inclined face is arranged at the end, away from the first inclined face, of the inner pulling core, one end of the pulling block is connected with the driving assembly, and the driving assembly is used for driving the pulling block to move in the horizontal direction so as to drive the inner pulling core to move up and down. When the driving assembly drives the pulling block to move in the horizontal direction, the inner pulling core is driven to move up and down, so that the inner pulling core is gradually released from the reverse buckling position of the product, the inner pulling core can smoothly return to the original position through extrusion between the second inclined plane and the first inclined plane, the core pulling action is completed, the overall size of the inner pulling structure is reduced, and the production efficiency is improved. And the overall size requirement of the mold is reduced, and the installation difficulty of the structure is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of headlight injection molds, and particularly relates to a horizontal reverse core-pulling structure. Background Art

[0002] Traditional internal core-pulling structures are divided into two types: forward internal core-pulling and side internal core-pulling, which are common core-pulling mechanisms used to solve internal undercuts of products. The structure consists of an internal core-pulling body, a pull block, an inclined wedge, etc. The traditional internal core-pulling structure requires installation positions for the structure to be reserved on both the moving and fixed molds, resulting in a continuous increase in the overall size of the mold. At the same time, the installation of the traditional structure requires lifting the internal core to engage the T-shaped groove of the pull block, and the installation difficulty is relatively large.

[0003] When designing the traditional internal core-pulling structure, the installation requirements of the structure need to be considered on both the moving and fixed molds at the same time. Therefore, the mold size design will also increase significantly, resulting in a substantial increase in the mold cost; at the same time, the installation difficulty of the traditional structure is relatively large, leading to an increase in the workload of fitter operators. Summary of the Utility Model

[0004] In view of this, in order to solve the problems existing in the prior art, the purpose of the utility model is to provide a horizontal reverse core-pulling structure, which has the effects of reducing the space requirements for the mold structure and reducing the installation difficulty of the structure.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A horizontal reverse core-pulling structure, which includes: an internal core-pulling, a pull block, a driving component, and a cover plate;

[0007] The pull block is slidably arranged on the cover plate. The upper end of the pull block is formed with a first plane and a second plane arranged at different heights. The first plane and the second plane are connected by a first inclined surface, and the first inclined surface is inclined and descends in the direction from the first plane to the second plane. The second plane is closer to the driving component;

[0008] The internal core-pulling is mounted on the pull block. A fitting surface is formed inside the internal core-pulling, and the fitting surface can be operably fitted on the first plane or the second plane. A second inclined surface is connected to one end of the fitting surface away from the first inclined surface, and the inclination direction of the second inclined surface is the same as that of the first inclined surface. One end of the pull block is connected to the driving component, and the driving component is used to drive the pull block to move horizontally to drive the internal core-pulling to move up and down.

[0009] The specific technical effects are as follows: By designing the first plane and the second plane with different heights on the pulling block, when the driving component drives the pulling block to move horizontally, the inner core-pulling mechanism sequentially falls along the first plane and the first inclined plane until it fits with the second plane, thereby realizing the up-and-down movement of the inner core-pulling mechanism, enabling the inner core-pulling mechanism to gradually disengage from the undercut position of the product, and thus completing the core-pulling action; Through the extrusion of the inclined plane between the second inclined plane and the first inclined plane, the inner core-pulling mechanism can smoothly return to its original position, which not only meets the basic requirements of inner core-pulling, but also reduces the overall size of the inner core-pulling structure, thereby reducing the size requirements for the overall mold, greatly reducing the production and manufacturing costs of the mold. At the same time, this installation method is more reliable and simple, and the fitter operator does not need to lift the inner core-pulling mechanism to engage the T-shaped groove of the pulling block, improving the assembly efficiency.

[0010] Further, the inner core-pulling mechanism includes an inner core body and an internal anti-lock. A mounting hole for mounting the pulling block is formed at the lower end of the inner core body. The lower end of the inner core body is mounted on both sides of the pulling block and extends into the cover plate. The upper end of the internal anti-lock is connected to a side wall of the mounting hole. The lower end surface of the internal anti-lock is the fitting surface. The second inclined plane is formed at one end of the internal anti-lock away from the driving component. The product is mounted on the upper end of the inner core body.

[0011] Further, two guiding holes are formed in the cover plate. The lower end of the inner core body is mounted on both sides of the pulling block and extends into the two guiding holes.

[0012] The specific technical effects are as follows: By providing the guiding holes, it is convenient for the inner core body to move up and down when disengaging.

[0013] Further, a positioning boss protrudes upward at the upper end of the internal anti-lock. A positioning groove matching with the positioning boss is formed on the side wall of the mounting hole. The positioning boss is inserted into the positioning groove.

[0014] The specific technical effects are as follows: By designing the positioning boss at the upper end of the internal anti-lock, the stability of the internal anti-lock is increased.

[0015] Further, an undercut mounting surface for mounting the product is formed at the upper end of the inner core body. The size of the fitting surface is the same as that of the undercut mounting surface.

[0016] The specific technical effects are as follows: The design of the fitting surface bears the role of supporting the inner core body. Therefore, the size of the fitting surface is the same as that of the undercut mounting surface to prevent the inner core body from retreating.

[0017] Further, a clearance groove is formed on the pulling block. The second plane is formed at the bottom of the clearance groove. The first inclined plane is formed on a side wall of the clearance groove away from the driving component.

[0018] The specific technical effect is that by designing the clearance groove, it is convenient for the internal reverse brake to fall into the clearance groove during the horizontal movement of the pulling block.

[0019] Further, the included angle between the first inclined surface and the horizontal plane is 45°.

[0020] The specific technical effect is that a 45° first inclined surface is designed on the side of the clearance groove, and a 45° second inclined surface is also designed on the side of the internal reverse brake for driving the movement of the body, so that the inner drawing body can fall along the first inclined surface when falling, and at the same time, when the mold is closed and retracted, it is also necessary to return to the position through the extrusion between the first inclined surface and the second inclined surface.

[0021] Further, the driving assembly includes an oil cylinder and an oil cylinder fixing block. The oil cylinder is arranged on the oil cylinder fixing block, the oil cylinder fixing block is installed on the moving die frame, one end of the pulling block is connected to the driving end of the oil cylinder, and the driving end of the oil cylinder is used to drive the pulling block to move horizontally to drive the inner core to move up and down.

[0022] Further, a wear-resistant plate is arranged inside the cover plate. The pulling block is slidably connected to the wear-resistant plate, and the wear-resistant plate is inclined upward along the direction close to the driving assembly.

[0023] Further, the included angle between the upper surface of the wear-resistant plate and the horizontal plane is 1°.

[0024] The specific technical effect is that when the mold is closed, the oil cylinder drives the pulling block to move to the right along the wear-resistant plate on the cover plate and provides a certain reverse braking force. At the same time, the first inclined surface of the pulling block is squeezed with the second inclined surface of the internal reverse brake, so that the inner drawing structure can be smoothly retracted to its original position, avoiding the backward movement of the inner drawing due to the structural gap during injection molding.

[0025] The beneficial effects of the present utility model are:

[0026] (1). By designing the first plane and the second plane with different heights on the pulling block, when the driving assembly drives the pulling block to move horizontally, the inner core sequentially falls along the first plane and the first inclined surface to fit with the second plane, thereby realizing the up and down movement of the inner core, and enabling the inner core to gradually disengage from the undercut position of the product, thus completing the core pulling action;

[0027] (2) By squeezing the inclined surface between the second inclined surface and the first inclined surface, the internal core-pulling can smoothly retract to its original position, which not only meets the basic requirements of internal core-pulling, but also reduces the overall size of the internal core-pulling structure, thus lowering the overall size requirements of the mold and greatly reducing the production and manufacturing cost of the mold. At the same time, this installation method is more reliable and simple, and the fitter operator does not need to pull up the internal core to engage the T-shaped groove of the clamping block, improving the assembly efficiency.

[0028] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 is a structural schematic diagram of the present utility model;

[0031] Figure 2 is a structural schematic diagram of the oil cylinder of the present utility model;

[0032] Figure 3 is a structural schematic diagram of the internal core body of the present utility model;

[0033] Figure 4 is a structural schematic diagram of the internal reverse brake of the present utility model;

[0034] Figure 5 is a structural schematic diagram of the clamping block of the present utility model;

[0035] Figure 6 is a structural schematic diagram of the cover plate of the present utility model;

[0036] Figure 7 is a diagram of the use state of the present utility model;

[0037] Figure 8 is Figure 7 a cross-sectional view of.

[0038] In the figure:

[0039] 1. Inner core pulling; 2. Pulling block; 3. Driving assembly; 4. Cover plate; 5. First plane; 6. Second plane; 7. First inclined surface; 8. Fitting surface; 9. Second inclined surface; 10. Inner pull body; 11. Internal anti-brake; 12. Mounting hole; 13. Guide hole; 14. Positioning boss; 15. Positioning groove; 16. Undercut mounting surface; 17. Avoidance groove; 18. Cylinder; 19. Cylinder fixing block; 20. Wear-resistant plate; 21. Product; 22. Moving mold frame. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] like Figures 1 to 6 As shown, a horizontal reverse core pulling structure comprises an inner core pulling 1, a pulling block 2, a driving assembly 3 and a cover plate 4; the pulling block 2 is slidably arranged on the cover plate 4, and a first plane 5 and a second plane 6 are formed at the upper end of the pulling block 2, and the first plane 5 and the second plane 6 are connected by a first inclined surface 7, and the first inclined surface 7 is inclined downward from the first plane 5 to the direction of the second plane 6, and the second plane 6 is closer to the driving assembly 3;

[0042] The inner core pulling 1 is mounted on the pulling block 2, and a fitting surface 8 is formed in the inner core pulling 1. The fitting surface 8 can be operably fitted on the first plane 5 or the second plane 6. A second inclined surface 9 is connected to the end of the fitting surface 8 away from the first inclined surface 7. The inclination direction of the second inclined surface 9 is consistent with that of the first inclined surface 7. One end of the pulling block 2 is connected to the driving component 3, and the driving component 3 is used to drive the pulling block 2 to move in the horizontal direction to drive the inner core pulling 1 to move up and down.

[0043] It should be noted here that: by designing the first plane 5 and the second plane 6 with different heights on the pulling block 2, when the driving component 3 drives the pulling block 2 to move horizontally, the inner core-pulling 1 sequentially falls along the first plane 5 and the first inclined surface 7 until it fits with the second plane 6, thereby realizing the up and down movement of the inner core-pulling 1, enabling the inner core-pulling 1 to gradually disengage from the undercut position of the product 21, and thus completing the core-pulling action; through the extrusion of the inclined surface between the second inclined surface 9 and the first inclined surface 7, the inner core-pulling 1 can smoothly return to its original position, which not only meets the basic requirements of inner core-pulling, but also reduces the overall size of the inner core-pulling structure, lowering the overall size requirements of the mold, greatly reducing the production and manufacturing cost of the mold. At the same time, this installation method is more reliable and simple, and the fitter operator does not need to lift the inner core-pulling to engage with the T-shaped groove of the pulling block 2, improving the assembly efficiency.

[0044] The inner core-pulling 1 includes an inner core-pulling body 10 and an internal reverse brake 11. A mounting hole 12 for mounting the pulling block 2 is opened at the lower end of the inner core-pulling body 10. The lower end of the inner core-pulling body 10 is mounted on both sides of the pulling block 2 and extends into the cover plate 4. The upper end of the internal reverse brake 11 is connected to one side wall of the mounting hole 12. The lower end surface of the internal reverse brake 11 is a fitting surface 8. A second inclined surface 9 is formed at one end of the internal reverse brake 11 away from the driving component 3. The product 21 is installed at the upper end of the inner core-pulling body 10.

[0045] It should be noted here that: the inner core-pulling body 10 can be withdrawn according to the size of the undercut area of the product 21. When designing the inner core-pulling body 10, it can be appropriately larger to meet the requirement of arranging the water channels to ensure the cooling demand of the undercut area.

[0046] Two guiding holes 13 are opened on the cover plate 4. The lower end of the inner core-pulling body 10 is mounted on both sides of the pulling block 2 and extends into the two guiding holes 13.

[0047] It should be noted here that: by providing the guiding holes 13, it is convenient for the inner core-pulling body 10 to move up and down during disengagement; the cover plate 4 is arranged below the pulling block 2, on the one hand, preventing the inner core-pulling structure from getting dusty, and on the other hand, ensuring the smooth movement of the pulling block 2.

[0048] A positioning boss 14 is formed by the upward protrusion of the upper end of the internal reverse brake 11. A positioning groove 15 matching the positioning boss 14 is opened on the side wall of the mounting hole 12. The positioning boss 14 is inserted into the positioning groove 15.

[0049] It should be noted here that: by designing the positioning boss 14 at the upper end of the internal reverse brake 11, the stability of the internal reverse brake 11 is increased.

[0050] An undercut mounting surface 16 for installing the product 21 is formed at the upper end of the inner core-pulling body 10. The size of the fitting surface 8 is the same as that of the undercut mounting surface 16.

[0051] It should be noted here that the design of the fitting surface 8 undertakes the function of supporting the inner core body 10. Therefore, the size of the fitting surface 8 is the same as that of the undercut mounting surface 16 to prevent the inner core body 10 from retreating.

[0052] A clearance groove 17 is formed in the pulling block 2. The second plane 6 is formed at the bottom of the clearance groove 17, and the first inclined surface 7 is formed on one side wall of the clearance groove 17 away from the driving component 3.

[0053] It should be noted here that by designing the clearance groove 17, it is convenient for the internal reverse brake 11 to fall into the clearance groove 17 during the horizontal movement of the pulling block 2.

[0054] The included angle between the first inclined surface 7 and the horizontal plane is 45°.

[0055] It should be noted here that the 45° first inclined surface 7 is designed on the side of the clearance groove 17, and the 45° second inclined surface 9 is also designed on the side of the internal reverse brake 11 to drive the movement of the body, so that the inner core body 10 can fall along the first inclined surface 7 when falling. At the same time, when the mold is closed and retracted, it is also necessary to return to the original position through the extrusion between the first inclined surface 7 and the second inclined surface 9.

[0056] The driving component 3 includes an oil cylinder 18 and an oil cylinder fixing block 19. The oil cylinder 18 is arranged on the oil cylinder fixing block 19, and the oil cylinder fixing block 19 is installed on the moving mold frame 22. One end of the pulling block 2 is connected to the driving end of the oil cylinder 18, and the driving end of the oil cylinder 18 is used to drive the pulling block 2 to move horizontally to drive the inner core 1 to move up and down.

[0057] It should be noted here that the oil cylinder 18 is designed to adopt the Junfan double-acting basic type oil cylinder 18 (SD), which is the power source for the stable movement of the pulling block 2.

[0058] A wear-resistant plate 20 is arranged inside the cover plate 4. The pulling block 2 is slidably connected to the wear-resistant plate 20, and the wear-resistant plate 20 is inclined upward in the direction close to the driving component 3.

[0059] The included angle between the upper surface of the wear-resistant plate 20 and the horizontal plane is 1°.

[0060] It should be noted here that when the mold is closed, the oil cylinder 18 drives the pulling block 2 to move to the right along the wear-resistant plate 20 on the cover plate and provides a certain reverse braking force. At the same time, the first inclined surface 7 of the pulling block 2 is squeezed with the second inclined surface 9 of the internal reverse brake 11, so that the inner core structure can smoothly return to the original position and avoid the inner core from retreating due to the structural gap during injection molding.

[0061] The specific movement process of the present utility model is as follows:

[0062] See Figure 1As shown, when the mold is opened, the oil cylinder 18 drives the pull block 2 to move to the left for a distance, and the movement distance is consistent with the size of the fitting surface 8 of the internal counter brake 11. When the first inclined surface 7 contacts the second inclined surface 9 of the internal counter brake 11, the inner drawer body 10 begins to fall until the internal counter brake 11 falls into the air avoidance groove 17, and the fitting surface 8 of the internal counter brake 11 fits with the second plane 6 of the bottom of the air avoidance groove 17, so that the inner drawer body 10 is gradually disengaged from the inverted position of the product 21; when the mold is closed, the oil cylinder 18 Drive the pull block 2 to move rightward. Since the wear-resistant plate 20 is arranged upwardly and tilted in the direction close to the oil cylinder 18, the pull block 2 will gradually rise when it moves rightward, and use the counter-brake force to hold the internal counter-brake 11. At the same time, the first inclined surface 7 of the pull block 2 is squeezed with the second inclined surface 9 of the internal counter-brake 11, and the inner drawer body 10 begins to rise until the fitting surface 8 of the internal counter-brake 11 fits with the first plane 5 of the pull block 2, so that the inner drawer structure can be smoothly returned to its original position, avoiding the inner drawer retreating due to structural gap during injection molding.

[0063] In summary, the beneficial effects of the utility model are:

[0064] (1) By designing a first plane 5 and a second plane 6 with different heights on the pull block 2, when the driving component 3 drives the pull block 2 to move in the horizontal direction, the inner core pull 1 sequentially falls along the first plane 5 and the first inclined surface 7 until it fits with the second plane 6, thereby realizing the up and down movement of the inner core pull 1, so that the inner core pull 1 is gradually disengaged from the inverted position of the product 21, thereby completing the core pulling action;

[0065] (2) Through the extrusion of the inclined surface between the second inclined surface 9 and the first inclined surface 7, the inner core puller 1 can be smoothly returned to its original position, which not only meets the basic requirements of the inner core puller, but also reduces the overall size of the inner core puller structure, thereby reducing the overall size requirements of the mold and greatly reducing the production cost of the mold. At the same time, this installation method is more reliable and simple, and the fitter operator does not need to pull up the inner core puller to fit the T-slot of the block 2, thereby improving the assembly efficiency.

[0066] The various devices selected in this application are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0067] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0069] Taking the above-mentioned ideal embodiment of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A horizontal reverse core pulling structure, characterized in that: include: An inner core puller (1), a pull block (2), a drive assembly (3) and a cover plate (4); The pulling block (2) is slidably arranged on the cover plate (4); a first plane (5) and a second plane (6) are formed at the upper end of the pulling block (2), the first plane (5) and the second plane (6) being connected via a first inclined plane (7); the first inclined plane (7) is inclined downward from the first plane (5) toward the second plane (6); and the second plane (6) is closer to the driving assembly (3); The inner core pull (1) is mounted on the pulling block (2), and a fitting surface (8) is formed in the inner core pull (1). The fitting surface (8) can be operably fitted on the first plane (5) or the second plane (6). A second inclined surface (9) is connected to one end of the fitting surface (8) away from the first inclined surface (7), and the inclination direction of the second inclined surface (9) is consistent with that of the first inclined surface (7). One end of the pulling block (2) is connected to the driving component (3), and the driving component (3) is used to drive the pulling block (2) to move in a horizontal direction to drive the inner core pull (1) to move up and down.

2. A horizontal reverse core pulling structure as claimed in claim 1, characterized in that: The inner pull-out core (1) comprises an inner pull-out body (10) and an internal counter-brake (11), the lower end of the inner pull-out body (10) is provided with a mounting hole (12) for mounting the pull block (2), the lower end of the inner pull-out body (10) is mounted on both sides of the pull block (2) and extends into the cover plate (4), the upper end of the internal counter-brake (11) is connected to a side wall of the mounting hole (12), the lower end surface of the internal counter-brake (11) is the fitting surface (8), the end of the internal counter-brake (11) away from the driving assembly (3) is formed with the second inclined surface (9), and the product (21) is mounted on the upper end of the inner pull-out body (10).

3. A horizontal reverse core pulling structure as claimed in claim 2, characterized in that: The cover plate (4) is provided with two guide holes (13), and the lower end of the inner drawer body (10) is mounted on both sides of the pull block (2) and extends into the two guide holes (13).

4. A horizontal reverse core pulling structure as claimed in claim 2, characterized in that: The upper end of the internal counterbrake (11) protrudes upward to form a positioning boss (14), and the side wall of the mounting hole (12) is provided with a positioning groove (15) that matches the positioning boss (14), and the positioning boss (14) is inserted into the positioning groove (15).

5. A horizontal reverse core pulling structure as claimed in claim 2, characterized in that: An undercut mounting surface (16) for mounting the product (21) is formed at the upper end of the inner drawer body (10), and the size of the fitting surface (8) is consistent with the size of the undercut mounting surface (16).

6. A horizontal reverse core pulling structure as claimed in claim 1, characterized in that: The pulling block (2) is provided with a clearance groove (17), the second plane (6) is formed at the bottom of the clearance groove (17), and the first inclined surface (7) is formed on a side wall of the clearance groove (17) away from the driving assembly (3).

7. A horizontal reverse core pulling structure as claimed in claim 6, characterized in that: The angle between the first inclined surface (7) and the horizontal plane is 45°.

8. A horizontal reverse core pulling structure as claimed in claim 1, characterized in that: The driving assembly (3) comprises a cylinder (18) and a cylinder (18) fixing block, wherein the cylinder (18) is arranged on the cylinder (18) fixing block, and the cylinder (18) fixing block is installed on the movable mold frame (22). One end of the pulling block (2) is connected to the driving end of the cylinder (18), and the driving end of the cylinder (18) is used to drive the pulling block (2) to move in a horizontal direction to drive the inner core pulling (1) to move up and down.

9. A horizontal reverse core pulling structure as claimed in claim 1, characterized in that: A wear-resistant plate (20) is arranged inside the cover plate (4), the pull block (2) is slidably connected to the wear-resistant plate (20), and the wear-resistant plate (20) is arranged obliquely upward in a direction close to the driving assembly (3).

10. A horizontal reverse core pulling structure as claimed in claim 9, characterized in that: The angle between the upper surface of the wear-resistant plate (20) and the horizontal plane is 1°.

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