Core-pulling die-casting die

By introducing inclined guide pillars and guide parts into the die-casting mold, the slider seat is driven to move tilted, which solves the problem of difficult separation between the slider and the product, achieves smooth separation of the product and reduces costs.

CN223394288UActive Publication Date: 2025-09-30NINGBO MINGXIN ELECTRONICS MACHINERY MFGCO
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Patent Information

Application Number
CN202422854017.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-09-30
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

When existing die-casting molds are used to form workpieces with holes, the sliders cannot separate smoothly, causing product deformation or damage. In particular, when the holes are tilted on the movable mold assembly, the clamping force between the bottom of the slider and the product is too large.

Method used

A core-pulling die-casting mold is designed. By setting inclined guide pillars and guide parts on the movable mold assembly, the slider seat is driven to move tilted, overcoming the clamping force between the slider and the product, so that the slider and the product are smoothly separated to avoid deformation and damage.

Benefits of technology

The smooth separation of the slider and the product is achieved, deformation and damage of the product are avoided, the volume of the die-casting mold is reduced, the selection requirements of the driving parts are reduced, and the cost is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of die-casting dies, and provides a core-pulling die-casting die. The movable mold assembly is movably propped against the fixed mold assembly; a product cavity; the driving part is arranged on the movable mold assembly; the guide piece is arranged on the movable mold assembly in a sliding manner, and the guide piece is provided with an inclined guide column; the sliding block seat is movably arranged on the movable mold assembly, a sliding block is arranged on the sliding block seat, and the sliding block is provided with a bottom forming surface and a side forming surface; the utility model has the advantages that the driving piece drives the guide piece to move, the guide piece drives the inclined guide pillar to move, and the inclined guide pillar further drives the slide block seat to obliquely move on the movable mold assembly. The sliding block seat drives the sliding block to obliquely move on the movable mold assembly, and overcomes the wrapping force between the bottom forming surface and the side forming surface of the sliding block and the product, so that the sliding block is smoothly separated from the product, and the product is prevented from being deformed and damaged.
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Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, in particular to a core-pulling die-casting mold. Background Art

[0002] A die-casting mold is a tool used in the die-casting process. It is crucial for manufacturing metal parts with complex shapes and high precision requirements. Molten metal is rapidly injected into the die-casting mold cavity under high pressure, and the finished product is removed after it cools and solidifies. After forming a workpiece with holes, existing die-casting molds can only move the slider in a direction perpendicular to the movement of the movable mold assembly. Therefore, they are only suitable for holes set perpendicular to the movement of the movable mold assembly. However, when the product holes are set at an angle on the movable mold assembly, existing die-casting molds can only move the slider in a direction perpendicular to the movement of the movable mold assembly. This causes the clamping force between the bottom of the slider and the product to be greater than the clamping force between the product and the movable mold assembly, making it impossible to smoothly separate the bottom of the slider from the product, thereby causing product deformation or damage during the slider movement. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a core-pulling die-casting mold in view of the current status of the existing technology.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: to propose a core-pulling die-casting mold, comprising:

[0005] Fixed mold assembly;

[0006] A movable mold assembly, the movable mold assembly movably abutting against the fixed mold assembly;

[0007] A product cavity is formed when the fixed mold assembly and the movable mold assembly abut against each other, and the product cavity is used to provide a space for product molding;

[0008] A driving member, the driving member being arranged on the movable mold assembly;

[0009] A guide member, the guide member being slidably disposed on the movable mold assembly, the guide member being connected to the output end of the driving member, and the guide member being provided with an inclined guide column;

[0010] A slider seat, the slider seat is movably arranged on the movable mold assembly, the slider seat is movably sleeved on the inclined guide column, the slider seat is provided with a slider, the slider structure has a bottom molding surface and a side molding surface, the area of ​​the bottom molding surface is larger than the area of ​​the side molding surface;

[0011] The slider can be tilted and moved on the movable mold assembly when the slider seat is moved by the guide member, so as to separate from the product cavity and overcome the clamping force between the bottom molding surface and the side molding surface of the slider and the product.

[0012] In the above-mentioned core-pulling die-casting mold, the end of the slider away from the product cavity is inserted into the slider seat.

[0013] In the above-mentioned core-pulling die-casting mold, the slider is provided with a threaded hole, and the slider seat is provided with a bolt through hole. The bolt passes through the bolt through hole and is connected to the slider for fixing the slider on the slider seat.

[0014] In the above-mentioned core-pulling die-casting mold, the slider is provided with a first abutment portion, and the fixed mold assembly is provided with a second abutment portion, and the first abutment portion and the second abutment portion are movably abutted against each other;

[0015] When the fixed mold assembly abuts against the movable mold assembly, the first abutting portion abuts against the second abutting portion to limit the sliding block.

[0016] In the above-mentioned core-pulling die-casting mold, the first abutment portion is provided with a first inclined surface and a second inclined surface inclined along the movable mold assembly toward the fixed mold assembly, and the second abutment portion is provided with a third inclined surface that movably abuts against the first inclined surface, and a fourth inclined surface that movably abuts against the second inclined surface.

[0017] In the above-mentioned core-pulling die-casting mold, the movable mold assembly is provided with a guide groove, and the guide groove is inclined along the moving direction of the movable mold assembly relative to the fixed mold assembly. A convex column is provided on the slider seat, and the convex column is movably inserted in the guide groove to provide guidance for the movement of the slider seat.

[0018] In the above-mentioned core-pulling die-casting mold, the movable mold assembly is provided with a slide groove, which is arranged perpendicular to the moving direction of the movable mold assembly, and the slide groove is used for the movement of the guide member.

[0019] In the above-mentioned core-pulling die-casting mold, the driving member is preferably an oil cylinder.

[0020] Compared with the prior art, the present invention has the advantage of using a driver to drive the guide member, which in turn drives the inclined guide post, which in turn drives the slider seat to tilt and move on the movable mold assembly. The slider seat drives the slider to tilt and move on the movable mold assembly, overcoming the clamping force between the slider's bottom and side molding surfaces and the product, allowing for smooth separation of the slider from the product and preventing product deformation and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a three-dimensional diagram of a core-pulling die-casting mold of the utility model;

[0022] Figure 2 This is a cross-sectional view of a core-pulling die-casting mold of the utility model;

[0023] Figure 3 It is a cross-sectional view of the fixed die assembly of the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the movable mold assembly of the utility model;

[0025] Figure 5 It is a three-dimensional diagram of the slider seat of the utility model;

[0026] Figure 6 It is a three-dimensional diagram of the slider of the utility model;

[0027] Figure 7 It is a plan view of the slider of the utility model.

[0028] In the figure, 1. fixed mold assembly; 2. movable mold assembly; 21. guide groove; 22. slide groove; 3. product cavity; 4. driving member; 41. oil cylinder; 5. guide member; 51. inclined guide column; 6. slider seat; 61. bolt through hole; 62. boss; 7. slider; 71. bottom forming surface; 72. side forming surface; 73. threaded hole; 8. first abutment portion; 81. first inclined surface; 82. second inclined surface; 9. second abutment portion; 91. third inclined surface; 92. fourth inclined surface. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0030] like Figures 1 to 7 As shown, a core-pulling die-casting mold of the utility model includes:

[0031] Fixed mold assembly 1; movable mold assembly 2, movable mold assembly 2 and fixed mold assembly 1 are movably abutted against each other; product cavity 3, product cavity 3 is formed when fixed mold assembly 1 and movable mold assembly 2 are abutted against each other, and product cavity 3 is used to provide space for product molding; driving member 4, driving member 4 is arranged on movable mold assembly 2; guide member 5, guide member 5 is slidably arranged on movable mold assembly 2, guide member 5 is connected to the output end of driving member 4, and guide member 5 is provided with inclined guide column 51; slider seat 6, slider seat 6 is movably arranged on movable mold assembly 2, slider seat 6 is movably sleeved on inclined guide column 51, slider seat 6 is provided with slider 7, slider 7 is constructed with bottom molding surface 71 and side molding surface 72, and the area of ​​bottom molding surface 71 is larger than the area of ​​side molding surface 72.

[0032] During operation, the die-casting mold is connected to the die-casting machine, the fixed mold assembly 1 is connected to the fixed part of the die-casting machine, and the movable mold assembly 2 is connected to the movable part of the die-casting machine. The movable mold assembly 2 is driven by the movable part of the die-casting machine to open or close the die-casting mold. After the die-casting mold is opened, the driving member 4 drives the guide member 5 to move, and the guide member 5 drives the inclined guide column 51 to move. The inclined guide column 51 drives the slider seat 6 to move toward the guide member 5 while also moving toward the fixed mold assembly 1. The slider seat 6 drives the slider 7 to move obliquely on the movable mold assembly 2, overcoming the clamping force between the bottom molding surface 71 and the side molding surface 72 of the slider 7 and the product, so that the slider 7 can be smoothly separated from the product and moved out of the hole, avoiding the slider 7 pulling the product and causing deformation and damage to the product.

[0033] The end of the slider 7 of this solution away from the product cavity 3 is inserted on the slider seat 6; the slider 7 is provided with a threaded hole 73, and the slider seat 6 is provided with a bolt through hole 61. The bolt passes through the bolt through hole 61 and is connected to the slider 7, which is used to fix the slider 7 on the slider seat 6.

[0034] The bolt passes through the bolt hole 61 and is connected to the slider 7, thereby firmly fixing the slider 7 on the slider seat 6 to prevent the slider 7 from being separated from the slider seat 6 due to the clamping force between the slider and the product when the slider seat 6 drives the slider 7 to move.

[0035] The slider 7 of this solution is provided with a first abutting portion 8 , and the fixed mold assembly 1 is provided with a second abutting portion 9 . The first abutting portion 8 and the second abutting portion 9 are movably abutted against each other.

[0036] When the movable mold assembly 2 abuts the fixed mold assembly 1, the first abutting portion 8 tightly abuts the second abutting portion 9, which then restrains the slider 7. Subsequently, molten metal is injected into the product cavity 3, impacting the slider 7 and exerting a thrust on it. Because the second abutting portion 9 restrains the slider 7, the thrust exerted by the molten metal on it is overcome. This allows for the selection of a smaller driver 4, ultimately reducing the die casting mold size and cost.

[0037] The first abutment portion 8 of this solution is provided with a first inclined surface 81 and a second inclined surface 82 inclined along the movable mold assembly 2 toward the fixed mold assembly 1, and the second abutment portion 9 is provided with a third inclined surface 91 that movably abuts against the first inclined surface 81 and a fourth inclined surface 92 that movably abuts against the second inclined surface 82.

[0038] When movable mold assembly 2 abuts fixed mold assembly 1, it moves first inclined surface 81 and abuts third inclined surface 91. Simultaneously, movable mold assembly 2 moves second inclined surface 82 and abuts fourth inclined surface 92, thereby securing slider 7. Subsequently, molten metal is injected into product cavity 3, impacting slider 7 and exerting a thrust on it. Simultaneously, first inclined surface 81 exerts a thrust on third inclined surface 91, while second inclined surface 82 exerts a thrust on fourth inclined surface 92. These forces overcome the thrust exerted by the molten metal on slider 7 and prevent it from moving.

[0039] The movable mold assembly 2 of this solution is provided with a guide groove 21, which is inclined along the moving direction of the movable mold assembly 2 relative to the fixed mold assembly 1. A protrusion 62 is provided on the slider seat 6, and the protrusion 62 is movably inserted in the guide groove 21 to provide guidance for the movement of the slider seat 6.

[0040] When the die-casting mold is opened, the driving member 4 drives the guide member 5 to move, and the guide member 5 drives the inclined guide column 51 to move. The inclined guide column 51 drives the slider seat 6 to move toward the guide member 5 while also moving toward the fixed mold assembly 1. The guide groove 21 guides the slider seat 6 to move obliquely on the movable mold assembly 2.

[0041] The movable mold assembly 2 of this solution is provided with a slide groove 22 , which is arranged perpendicular to the moving direction of the movable mold assembly 2 , and is used for allowing the guide member 5 to move.

[0042] When the die-casting mold is opened, the driving member 4 drives the guide member 5 to move on the slide groove 22, and the guide member 5 drives the inclined guide pillar 51 to move. The inclined guide pillar 51 drives the slider seat 6 to move toward the guide member 5 and also toward the fixed mold assembly 1. The slider seat 6 drives the slider 7 to move obliquely on the movable mold assembly 2.

[0043] In this embodiment, the driving member 4 is configured as a hydraulic cylinder 41. When the die-casting mold is opened, the hydraulic cylinder 41 drives the guide member 5, which in turn moves the inclined guide post 51. The inclined guide post 51 drives the slider seat 6 toward the guide member 5 and, simultaneously, toward the fixed mold assembly 1. The slider seat 6 drives the slider 7 in tilted motion on the movable mold assembly 2. The hydraulic cylinder 41 precisely controls the movement of the guide member 5, ensuring smoother motion and, therefore, smoother removal of the slider 7 from the product cavity 3.

[0044] The guide member 5 is driven by a driving member 4, which in turn drives the inclined guide post 51, which in turn drives the slider seat 6 to tilt and move on the movable mold assembly 2. The slider seat 6 drives the slider 7 to tilt and move on the movable mold assembly 2, overcoming the clamping force between the bottom molding surface 71 and the side molding surface 72 of the slider 7 and the product, thereby smoothly separating the slider 7 from the product and preventing deformation and damage to the product.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0047] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0048] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0049] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods, without departing from the scope defined by the spirit of the present invention.

Claims

1. A core-pulling die-casting mold for forming products, with holes provided on the product, characterized in that: include: Fixed mold assembly; A movable mold assembly, the movable mold assembly movably abutting against the fixed mold assembly; A product cavity is formed when the fixed mold assembly and the movable mold assembly abut against each other, and the product cavity is used to provide a space for product molding; A driving member, the driving member being arranged on the movable mold assembly; A guide member, the guide member being slidably disposed on the movable mold assembly, the guide member being connected to the output end of the driving member, and the guide member being provided with an inclined guide column; A slider seat, the slider seat is movably arranged on the movable mold assembly, the slider seat is movably sleeved on the inclined guide column, the slider seat is provided with a slider, the slider structure has a bottom molding surface and a side molding surface, the area of ​​the bottom molding surface is larger than the area of ​​the side molding surface; The slider can be tilted and moved on the movable mold assembly when the slider seat is moved by the guide member, so as to separate from the product cavity and overcome the clamping force between the bottom molding surface and the side molding surface of the slider and the product.

2. A core-pulling die-casting mold according to claim 1, characterized in that: One end of the slider away from the product cavity is inserted into the slider seat.

3. A core-pulling die-casting mold according to claim 1, characterized in that: The slider is provided with a threaded hole, and the slider seat is provided with a bolt through hole. The bolt passes through the bolt through hole and is connected to the slider, so as to fix the slider on the slider seat.

4. A core-pulling die-casting mold according to claim 1, characterized in that: The slider is provided with a first abutting portion, and the fixed mold assembly is provided with a second abutting portion, and the first abutting portion and the second abutting portion are movably abutted against each other; When the fixed mold assembly and the movable mold assembly are clamped, the first abutting portion abuts against the second abutting portion to limit the sliding block.

5. A core-pulling die-casting mold according to claim 4, characterized in that: The first abutting portion is provided with a first inclined surface and a second inclined surface inclined along the movable mold assembly toward the fixed mold assembly, and the second abutting portion is provided with a third inclined surface movably abutting against the first inclined surface and a fourth inclined surface movably abutting against the second inclined surface.

6. The core-pulling die-casting mold according to claim 1, characterized in that: The movable mold assembly is provided with a guide groove, which is inclined along the moving direction of the movable mold assembly relative to the fixed mold assembly. A convex column is provided on the slider seat, and the convex column is movably inserted in the guide groove to provide guidance for the movement of the slider seat.

7. The core-pulling die-casting mold according to claim 1, characterized in that: The movable mold assembly is provided with a slide groove, which is arranged perpendicular to the moving direction of the movable mold assembly and is used for allowing the guide member to move.

8. The core-pulling die-casting mold according to claim 1, characterized in that: The driving member is configured as an oil cylinder.