Composite slider core pulling

Abstract

This utility model provides a composite slider core pulling system, relating to the field of mold manufacturing technology. It includes a mold with a first oblique undercut on its side, a first slider on the surface of the first oblique undercut, a second oblique undercut on its side, and a third slider on the surface of the second oblique undercut. The system comprises a first slider, a second slider, a third slider, an oblique guide post, a guide rod, and a movable groove. Due to the clearance between the movable groove and the guide rod, the oblique guide post drives the second slider to move, simultaneously driving the first slider to move along the direction of the guide rod, thus disengaging from the first oblique undercut and creating space for the third slider to move. Subsequently, the third slider moves in conjunction with a stop block, disengaging from the second oblique undercut. Through the ingenious linkage between the sliders and the precise guidance of the guide rod, simultaneous and efficient disengagement of multi-directional undercuts is achieved, significantly simplifying the mold structure, reducing manufacturing costs, and optimizing space utilization.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, and in particular to composite slider core pulling. Background Technology

[0002] The slider core-pulling structure is a key technology in injection mold design for handling undercut demolding of products. It is widely used in the production of plastic products with complex geometries. In traditional injection molds, when there are undercuts on the product that cannot be demolded directly along the mold opening direction, a slider core-pulling mechanism is usually used. The undercut is removed by the horizontal or oblique movement of the slider during the mold opening and closing process. Slider core-pulling usually relies on inclined guide pillars, guide rods or hydraulic mechanisms to drive the slider movement to achieve the demolding function.

[0003] In the current composite slider core-pulling technology, when the product has undercuts in multiple directions or the mold space is limited, the traditional design often requires multiple independent slider mechanisms, resulting in complex mold structure, high manufacturing cost and large space occupation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a composite slider core-pulling method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a composite slider core pulling device, comprising a mold, wherein the side of the mold is provided with a first oblique undercut, the surface of the first oblique undercut is provided with a first slider, the side of the mold is provided with a second oblique undercut, the surface of the second oblique undercut is provided with a third slider, the surface of the third slider is provided with a second slider, the surface of the first slider is provided with a positioning groove, the surface of the second slider is provided with a movable groove and a guide groove, the surfaces of the positioning groove and the movable groove are provided with guide rods, and the surface of the guide groove is provided with oblique guide posts.

[0006] Preferably, the second and third sliders are provided with pressure strips on their sides, and the bottom surface of the third slider is provided with a support plate.

[0007] Preferably, the surface of the third slider is provided with a first limiting clamp, and the surface of the support plate is provided with a second limiting clamp.

[0008] Preferably, the mold has a slot on its side, and the shape and position of the slot and the second oblique buckle are adapted to the third slider, and the shape and position of the first oblique buckle are adapted to the first slider.

[0009] Preferably, the surface of the positioning groove is provided with a positioning sleeve, and the guide rod is connected to the first slider and the second slider through the positioning groove and the movable groove.

[0010] Preferably, the surface of the third slider is provided with a fixing groove, and the end of the guide rod passes through the second slider and is connected to the fixing groove.

[0011] Preferably, the surface of the third slider is provided with a stop, and the surface of the third slider is provided with a moving groove. Beneficial effects

[0012] In this invention, a first slider, a second slider, a third slider, an inclined guide post, a guide rod, and a movable groove are used. When the mold is opened, the third slider does not move initially. Due to the action of the second limiting clamp and the fixing groove, the guide rod is fixed on the third slider. Because there is a clearance between the movable groove and the guide rod, the inclined guide post drives the second slider to move, and at the same time drives the first slider to move along the direction of the guide rod, completing the disengagement from the first inclined undercut. This also makes room for the third slider to move. Subsequently, the third slider moves in conjunction with the stop block to complete the disengagement from the second inclined undercut. Through the ingenious linkage between the sliders and the precise guidance of the guide rod, the synchronous and efficient disengagement of multi-directional undercuts is achieved, significantly simplifying the mold structure, reducing manufacturing costs, and optimizing space utilization. Attached Figure Description

[0013] Figure 1 This is an axonometric view of the present invention;

[0014] Figure 2 This is a front view of the present invention;

[0015] Figure 3 This is a front view of the internal structure of this utility model;

[0016] Figure 4 This is a structural diagram of the mold of this utility model.

[0017] Legend:

[0018] 1. Mold; 2. Support plate; 3. Pressure bar; 4. First slider; 5. Second slider; 6. Third slider; 7. First oblique undercut; 8. Second oblique undercut; 9. Slot; 10. Angled guide post; 11. Guide rod; 12. Positioning sleeve; 13. First limiting clamp; 14. Second limiting clamp; 15. Stop; 16. Positioning groove; 17. Guide groove; 18. Movable groove; 19. Fixed groove; 20. Moving groove. Detailed Implementation

[0019] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0020] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation

[0021] Reference Figure 1-4 The composite slider core-pulling mechanism includes a mold 1 that houses the product molding cavity. A first oblique undercut 7 and a second oblique undercut 8 on the side of the mold 1 provide space and structural support for demolding. A slot 9 is provided on the side of the mold 1. The shape and position of the slot 9 and the second oblique undercut 8 are adapted to a third slider 6. The shape and position of the first oblique undercut 7 are adapted to a first slider 4. The first oblique undercut 7 is located on the side of the mold 1, and a first slider 4 is located on the surface of the first oblique undercut 7. The second oblique undercut 8 serves as a geometric feature during product molding. Demolding is achieved through the sliding separation of the first slider 4 and the third slider 6. The third slider 6 is located on the surface of the second oblique undercut 8, and a second slider 5 is located on the surface of the third slider 6. The first slider 4 is mounted on the surface of the first oblique undercut 7 and is adapted to its shape and position. During mold opening, it slides along the direction of the guide rod 11 to complete the first oblique undercut... The release of buckle 7 simultaneously creates space for the movement of the third slider 6. The second slider 5 is disposed on the surface of the third slider 6, with a movable groove 18 and a guide groove 17 on its surface, which cooperate with the guide rod 11 and the inclined guide post 10. The bottom surface of the second slider 5 has a slot, which engages with the first limiting clamp 13, thereby fixing the second slider 5 on the third slider 6. In the initial stage of mold opening, the inclined guide post 10 drives the second slider 5 to move along the movable groove 18. The applied external force causes the second slider 5 to move away from the first limiting clamp 13, while simultaneously driving the first slider 4 to move, thus completing the release of the first inclined buckle 7. The third slider 6 is installed on the surface of the second inclined buckle 8, which is adapted to the shape and position of the slot 9 and the second inclined buckle 8. Its bottom surface also has a slot, which engages with the second limiting clamp 14. During mold opening, it is constrained by the second limiting clamp 14 and the fixing groove 19 to remain initially stationary. Subsequently, under the action of the stop block 15, it moves in conjunction to complete the release of the second inclined buckle 8.

[0022] The surface of the first slider 4 has a positioning groove 16, and the surface of the second slider 5 has a movable groove 18 and a guide groove 17. The positioning groove 16 is formed on the surface of the first slider 4 and cooperates with the guide rod 11 and the positioning sleeve 12 to provide a sliding track for the guide rod 11, ensuring the precise movement of the first slider 4 along the guide rod 11. The guide groove 17 provides a place for the inclined guide post 10 to be inserted, facilitating the subsequent movement of the second slider 5 by the inclined guide post 10. The movable groove 18 cooperates with the guide rod 11 and includes a clearance design to provide the second slider 5 with independent movement space relative to the guide rod 11, allowing the second slider 5 to move independently in the initial stage of mold opening. The surfaces of the positioning groove 16 and the movable groove 18 are provided with the guide rod 11, and the surface of the positioning groove 16 is provided with the positioning sleeve 12. The guide rod 11 is connected to the first slider 4 and the second slider 5 through the positioning groove 16 and the movable groove 18. The surface of the third slider 6 has a fixing groove 19, and the end of the guide rod 11 is... The second slider 5 is connected to the fixed groove 19, which fixes the relative position of the guide rod 11 and the third slider 6, ensuring that the guide rod 11 and the third slider 6 remain stationary at the initial stage of mold opening. The guide rod 11 guides the movement direction of the first slider 4 and the second slider 5, ensuring movement accuracy. At the same time, it is fixed to the initial position of the third slider 6 through the fixed groove 19. The positioning sleeve 12 cooperates with the guide rod 11 to enhance the stability of the first slider 4 moving along the guide rod 11, prevent deviation, and improve movement accuracy. The surface of the guide groove 17 is provided with an inclined guide post 10, and the surface of the third slider 6 is provided with a moving groove 20. The inclined guide post 10 is set on the surface of the guide groove 17 of the second slider 5 and cooperates with the second slider 5. Its end is inserted into the moving groove 20. The moving groove 20 provides space for the movement of the inclined guide post 10. When the mold is opened, it drives the second slider 5 to move. When the mold is closed, it cooperates with the shovel base to press back the first slider 4, the second slider 5, and the third slider 6.

[0023] The second slider 5 and the third slider 6 are provided with pressure strips 3 on their sides. The bottom surface of the third slider 6 is provided with a support plate 2. The support plate 2 is located on the bottom surface of the third slider 6, supporting the third slider 6 and related components, providing a stable motion base, and bearing the second limiting clamp 14 to ensure the stability of the third slider 6 during the mold opening process. The pressure strips 3 are set on the sides of the second slider 5 and the third slider 6 for fixing and pressing. When the mold is closed, they cooperate with the inclined guide post 10 and the shovel base to help press the first slider 4, the second slider 5 and the third slider 6 back to their initial positions, ensuring the reset accuracy of the mold 1. The surface of the third slider 6 is provided with a first limiting clamp 13, the surface of the support plate 2 is provided with a second limiting clamp 14, and the surface of the third slider 6 is provided with a stop block 15. The stop block 15 is set on the surface of the third slider 6 and has a movement space between it and the second slider 5, providing movement space for the initial movement of the second slider 5. After the first slider 4 and the second slider 5 complete their initial movement, the second slider 5 drives the stop block 15 to move, driving the third slider 6 to complete the disengagement of the second inclined undercut 8. Specific Implementation

[0024] The composite slider core-pulling device, based on the basic structure in Specific Embodiment 1, further discloses the following: The operation process of this device is as follows: During mold opening, the third slider 6 remains stationary due to the constraint of the second limiting clamp 14 and the fixing groove 19. The guide rod 11 is fixed to the third slider 6. The inclined guide post 10 drives the second slider 5 to move along the clearance space of the movable groove 18 through the guide groove 17. The second slider 5 disengages from the first limiting clamp 13, and then drives the first slider 4 to slide along the guide rod 11 and the positioning groove 16, completing the disengagement of the first inclined undercut 7, while simultaneously making room for the movement of the third slider 6. Subsequently, the second slider 5 drives the third slider 6 to move in conjunction with the stop block 15. The inclined guide post 10 guides the third slider 6 to complete the disengagement of the second inclined undercut 8 within the moving groove 20. When the mold is closed, the inclined guide post 10 cooperates with the shovel base and presses the first slider 4, the second slider 5, and the third slider 6 back to their initial positions through the pressure strip 3. The positioning sleeve 12 and the guide rod 11 ensure the motion accuracy. Through the ingenious linkage of the first slider 4, the second slider 5, and the third slider 6 and the precise guidance of the guide rod 11, the device achieves synchronous and efficient disengagement of multi-directional undercuts, simplifies the structure of the mold 1, reduces costs, and optimizes space utilization.

[0025] In summary:

[0026] The system employs a first slider 4, a second slider 5, a third slider 6, an inclined guide post 10, a guide rod 11, and a movable groove 18. During mold opening, the third slider 6 remains stationary initially. Due to the action of the second limiting clamp 14 and the fixing groove 19, the guide rod 11 is fixed to the third slider 6. Because there is clearance between the movable groove 18 and the guide rod 11, the inclined guide post 10 drives the second slider 5 to move, simultaneously driving the first slider 4 to move along the direction of the guide rod 11, completing the disengagement from the first inclined undercut 7 and also creating space for the third slider 6 to move. Subsequently, the third slider 6 moves in conjunction with the stop block 15, completing the disengagement from the second inclined undercut 8. Through the ingenious linkage between the first slider 4, the second slider 5, and the third slider 6, and the precise guidance of the guide rod 11, the synchronous and efficient disengagement of multi-directional undercuts is achieved, significantly simplifying the structure of the mold 1, reducing manufacturing costs, and optimizing space utilization.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A composite slide core comprising a mold (1), characterized in that: The mold (1) has a first oblique undercut (7) on its side, and a first slider (4) on the surface of the first oblique undercut (7). The mold (1) has a second oblique undercut (8) on its side, and a third slider (6) on the surface of the second oblique undercut (8). A second slider (5) is provided on the surface of the third slider (6). A positioning groove (16) is provided on the surface of the first slider (4). An active groove (18) and a guide groove (17) are provided on the surface of the second slider (5). A guide rod (11) is provided on the surface of the positioning groove (16) and the active groove (18). An oblique guide post (10) is provided on the surface of the guide groove (17).

2. The composite slide core of claim 1, wherein: The second slider (5) and the third slider (6) are provided with pressure strips (3) on their sides, and the bottom surface of the third slider (6) is provided with a support plate (2).

3. The composite slide core of claim 2, wherein: The surface of the third slider (6) is provided with a first limiting clamp (13), and the surface of the support plate (2) is provided with a second limiting clamp (14).

4. The composite slide core of claim 1, wherein: The mold (1) has a slot (9) on its side. The shape and position of the slot (9) and the second oblique buckle (8) are adapted to the third slider (6). The shape and position of the first oblique buckle (7) are adapted to the first slider (4).

5. The composite slide core of claim 1, wherein: The surface of the positioning groove (16) is provided with a positioning sleeve (12), and the guide rod (11) is connected to the first slider (4) and the second slider (5) through the positioning groove (16) and the movable groove (18).

6. The composite slide core of claim 1, wherein: The surface of the third slider (6) is provided with a fixing groove (19), and the end of the guide rod (11) passes through the second slider (5) and is connected to the fixing groove (19).

7. The composite slide core of claim 1, wherein: The surface of the third slider (6) is provided with a stop (15), and the surface of the third slider (6) is provided with a moving groove (20).

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