Die-casting die for preparing aluminum alloy information processing box body structure
By designing a die-casting mold suitable for aluminum alloy information processing boxes, and by adopting a sliding demolding method and optimizing the cooling channels, the defects of the aluminum alloy box structure in the die-casting process were solved, achieving high-quality casting and dimensional accuracy.
Patent Information
- Application Number
- CN202423295566.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The aluminum alloy information processing box structure is prone to defects such as cold shuts, shrinkage porosity, and shrinkage cavities during the die casting process, and the dimensional accuracy is difficult to control.
A die-casting mold was designed, comprising a fixed mold frame, a fixed mold core, a moving mold core, a moving mold frame, a gating mechanism, an ejector mechanism, and a core-pulling mechanism. It adopts a sliding demolding method and combines cooling pipes and limiting block structures to optimize the aluminum liquid filling path and cooling effect.
This improved the forming quality of the aluminum alloy information processing box, reduced casting defects, and ensured the dimensional accuracy and production efficiency of the product.
Smart Images
Figure CN223970825U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die-casting equipment technology, and in particular to a die-casting mold for preparing an aluminum alloy information processing box structure. Background Technology
[0002] Pressure casting is a metal forming method characterized by high pressure and high speed, enabling continuous mass production of precision castings with uneven thickness and complex shapes. Die casting molds are crucial equipment in the die casting process. In die casting aluminum alloys, mold design is key to the production of die castings. The design of the die casting mold, including its gating and venting systems, overall structure, and mold opening method, largely determines the rationality of the casting filling process and directly affects the forming quality of the casting. A well-structured die casting mold not only ensures the smooth production of high-quality die castings but also simplifies mold processing and improves production efficiency.
[0003] Due to significant variations in wall thickness and small dimensional tolerances, aluminum alloy information processing box structures are prone to poor aluminum molten filling, resulting in poor aluminum alloy welding and defects such as cold shuts, shrinkage cavities, and porosity in the castings. This invention addresses the challenges of dimensional accuracy and internal quality control in die-cast aluminum alloy information processing boxes by proposing a mold design solution that reduces casting defects and improves casting quality. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a die-casting mold for preparing aluminum alloy information processing box structure.
[0005] A die-casting mold for preparing an aluminum alloy information processing box structure includes a fixed mold frame, a fixed mold core, a moving mold core, a moving mold frame, square iron, guide pillars, a moving mold base plate, a pouring mechanism, an ejection mechanism, and a core-pulling mechanism.
[0006] The gating mechanism includes a gating sleeve, a sprue, a runner, and an ingate.
[0007] The ejector mechanism includes an ejector base plate, an ejector panel, an ejector pin, and a return pin.
[0008] The core-pulling mechanism includes an inclined guide post, a slider, a slider seat, an inclined guide post fixing block, and a limiting block;
[0009] The fixed mold core is fixed on the fixed mold frame; the movable mold core is set on the movable mold frame, and a square iron and a movable mold base plate are fixedly installed on the other side of the movable mold frame; the guide post is fixed at both ends of the square iron surface, and holes for the guide post to pass through are opened at the four corners of the fixed mold frame and the movable mold frame; the movable mold frame, the square iron and the movable mold base plate are connected together by bolts;
[0010] The casting mechanism connects the fixed mold frame and the moving mold core, the ejector mechanism is located between the moving mold base plate and the moving mold frame, and the core-pulling mechanism is located on the moving mold core.
[0011] The surfaces of the fixed mold frame and the moving mold frame are rectangular.
[0012] The fixed mold frame has a gate on its surface, and the gate sleeve is fixed at the gate. The gate is a sprue with the sprue facing inward. The sprue is directly opposite a horizontal sprue on one side of the upper surface of the moving mold core. The end of the horizontal sprue is an ingate.
[0013] The upper surface of the moving mold core has a groove in the middle that is consistent with the structure of the box body. The ingate is connected to the groove. An overflow groove is provided on the three sides of the groove except for the side where the ingate is located. A cooling pipe is provided inside the moving mold core perpendicular to the horizontal runner. A cooling pipe is provided inside the moving mold core in the middle of the groove, parallel to the first cooling pipe.
[0014] The lower surface of the moving mold core is mounted on the moving mold frame. The moving mold frame has slots on two sides perpendicular to the horizontal runner, and limit blocks are installed thereon. Inclined guide pillars are installed on the limit blocks, and the inclined guide pillars are perpendicular to the mold opening direction at a 67° angle. Inclined guide pillar fixing blocks are installed on the upper part of the inclined guide pillars, and the inclined guide pillar fixing blocks are fixed on the fixed mold frame. The moving mold frame has a slot on one side opposite to the horizontal runner, and a slider seat is installed thereon. A slider is installed on the slider seat, and the slider is fixed to the moving mold frame by bolts.
[0015] The moving mold frame has pin holes for ejector pins and return pins to pass through, and the moving mold core has pin holes for ejector pins to pass through. One end of the ejector pin and the return pin are both mounted on the ejector pin panel. The ejector pin is mounted in the middle area of the ejector pin panel and connected to the surface of the moving mold core. The return pin is mounted at the four corners of the ejector pin panel and connected to the surface of the moving mold frame. The ejector pin panel is mounted on the ejector pin base plate. The ejector pin base plate is mounted on the moving mold base plate on both sides perpendicular to the side where the limiting block is located, and the ejector pin base plate can slide relative to the moving mold base plate.
[0016] The front end of the ejector pin is provided with a conical component.
[0017] The surfaces of the fixed mold core and the moving mold core are subjected to draft treatment.
[0018] The beneficial effects of this utility model are as follows:
[0019] In this design, a sliding block method is used for demolding, which facilitates demolding and prevents product deformation during demolding. It also avoids dimensional changes caused by draft angle treatment. This mold facilitates demolding, ensures product dimensional accuracy, and reduces casting defects. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the die-casting mold for preparing the aluminum alloy information processing box structure of this utility model.
[0021] Figure 2This is a schematic diagram of the internal structure of the moving mold core in the die-casting mold for preparing the aluminum alloy information processing box structure of this utility model.
[0022] Figure 3 This is an exploded view of the die-casting mold used to prepare the aluminum alloy information processing box structure according to this utility model.
[0023] Wherein: 1-Fixed mold frame; 2-Fixed mold core; 3-Moving mold core; 4-Moving mold frame; 5-Square iron; 6-Guide pillar; 7-Moving mold base plate; 8-Bolt; 21-Gating sleeve; 22-Straight sprue; 23-Horizontal sprue; 24-Ingate; 41-Ejector pin base plate; 42-Ejector pin panel; 43-Ejector pin; 44-Return pin; 60-Casting; 61-Angled guide pillar; 62-Slider; 63-Slider seat; 64-Angled guide pillar fixing block; 65-Limiting block; 81-Overflow groove; 82-Circular hole; 83-Cooling pipe one; 84-Cooling pipe two. Detailed Implementation
[0024] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. Specific Implementation Example 1:
[0026] This invention provides a die-casting mold for preparing an aluminum alloy information processing box structure.
[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the mold includes a fixed mold frame 1, a fixed mold core 2, a moving mold core 3, a moving mold frame 4, a square iron 5, a guide pillar 6, a moving mold base plate 7, a gating mechanism, an ejector mechanism, and a core-pulling mechanism.
[0028] The casting mechanism includes a sprue sleeve 21, a sprue 22, a runner 23, and an ingate 24.
[0029] The ejector mechanism includes an ejector base plate 41, an ejector panel 42, an ejector pin 43, and a return pin 44.
[0030] The core-pulling mechanism includes an inclined guide post 61, a slider 62, a slider seat 63, an inclined guide post fixing block 64, and a limiting block 65;
[0031] The fixed mold core 2 is fixed on the fixed mold frame 1; the movable mold core 3 is set on the movable mold frame 4, and the square iron 5 and the movable mold base plate 7 are fixedly installed on the other side of the movable mold frame 4; the guide post 6 is fixed on both ends of the surface of the square iron 5, and holes for the guide post to pass through are opened at the four corners of the fixed mold frame 1 and the movable mold frame 4; the movable mold frame 4, the square iron 5 and the movable mold base plate 7 are connected together by bolts 8;
[0032] The casting mechanism connects the fixed mold frame 1 and the moving mold core 3, the ejection mechanism is located between the moving mold base plate 7 and the moving mold frame 4, and the core pulling mechanism is located on the moving mold core 3.
[0033] The square iron 5 is used to determine the length of the ejector pin stroke.
[0034] The surfaces of the fixed mold frame 1 and the moving mold frame 4 are rectangular.
[0035] The fixed mold frame 1 has a gate on its surface. The gate sleeve 21 is fixed at the gate. The gate is a sprue 22 facing inward. The sprue 22 is directly opposite the horizontal sprue 23 on one side of the upper surface of the moving mold core 3. The end of the horizontal sprue 23 is an ingate 24.
[0036] The moving mold core 3 has a groove in the middle of its upper surface that matches the box structure. The ingate 24 connects to the groove. Overflow grooves 81 are provided on the three sides of the groove, excluding the side where the ingate 24 is located. Cooling pipe 83 is provided inside the moving mold core 3 perpendicular to the horizontal runner 23. Cooling pipe 84 is provided parallel to cooling pipe 83 inside the moving mold core 3 in the middle of the groove. Because the temperature at the gate is relatively high, a separate water pipe is provided there, and another water pipe is provided on the other side of the mold. Considering subsequent installation and that the cooling pipes should avoid the sliding block and pinhole locations, the cooling pipes are not concentrated in the thickest part of the product. A ring of circular holes 82 is provided around the perimeter of the moving mold core casting area.
[0037] The lower surface of the moving mold core 3 is mounted on the moving mold frame 4. The moving mold frame 4 has slots on two sides perpendicular to the horizontal runner 23, and a limiting block 65 is installed thereon. An inclined guide post 61 is installed on the limiting block 65, and an inclined guide post fixing block 64 is installed on the upper part of the inclined guide post 61. The inclined guide post fixing block 64 is fixed on the fixed mold frame 1. The moving mold frame 4 has a slot on one side opposite to the horizontal runner 23, and a slider seat 63 is installed thereon. A slider 62 is installed on the slider seat 63, and the slider is fixed to the moving mold frame 4 by bolts.
[0038] The moving mold frame 4 has pin holes for ejector pins 43 and return pins 44 to pass through, and the moving mold core 3 has pin holes for ejector pins 43 to pass through. One end of the ejector pin 43 and the return pin 44 are both mounted on the ejector plate 42. The ejector pin 43 is mounted in the middle area of the ejector plate 42 and connected to the surface of the moving mold core 3. The return pin 44 is mounted at the four corners of the ejector plate 42 and connected to the surface of the moving mold frame 4. The ejector plate 42 is mounted on the ejector base plate 41. The ejector base plate 41 is mounted on the moving mold base plate 7 on both sides perpendicular to the side where the limiting block is located, and the ejector base plate 41 can slide relative to the moving mold base plate 7.
[0039] The front end of the ejector pin is provided with a conical component.
[0040] To facilitate product demolding, draft angles were applied to the fixed and moving mold cores within tolerance limits and without altering the hole spacing. No draft angles were applied around the perimeter. Demolding was performed using a sliding block method, which facilitates demolding and prevents product deformation during demolding, while also avoiding dimensional changes caused by draft angles.
[0041] In the actual design, both the fixed mold frame and the moving mold frame are made of H13 mold steel. The fixed mold frame is 500mm long, 470mm wide, and 90mm thick on the outer side, with a thickness of 42.5mm in the inner area where the fixed mold core is installed. The moving mold frame is 500mm long, 470mm wide, and 110mm thick on the outer side, with a thickness of 49.5mm in the inner area where the moving mold core is installed.
[0042] During die casting, the mold is installed on the die casting machine, the fixed mold core 2 is fixed on the fixed mold frame 1, and the moving mold core 3 is fixed on the moving mold frame 4. When the mold is closed, the fixed mold frame and the moving mold frame are guided to the correct position by the guiding action of the guide post 6. After the mold is closed, the molten metal is poured into the pressure chamber. The injection punch is pushed horizontally, pressing the molten metal into the cavity through the sprue 22 and the runner 33. Cooling pipes 83 and 84 are opened for regulation to prevent the mold temperature from being too high and causing aluminum sticking, as well as to prevent deformation and cracking caused by large local temperature differences in the mold. The overflow groove 81 contains the molten metal that first enters the cavity and the gas and oxide mixture mixed in, preventing the casting 60 from having cold shuts, porosity and slag inclusions. After holding pressure and cooling solidification, the die casting is formed. During demolding, the slider 62 slides to demold. The moving mold core 3 moves together with the moving mold frame 4, gradually opening the parting surface. The casting 60 remains on the moving mold core 3. When the parting surface opens to a certain distance, the moving mold frame 4 stops moving. Under the action of the ejector mechanism of the die casting machine, the ejector pin 43 pushes the casting 60 to separate from the moving mold core 3. After the casting 60 is separated from the mold, the mold closes again and enters the next die casting cycle. During ejection and retraction of the ejector pins, the return pin guides the ejector pins to ensure that after mold closing, the return pin contacts the fixed mold frame (front mold blank), allowing the fixed mold frame (front mold) to push back the ejector plate and reset the ejector pins.
[0043] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. Specific Implementation Example 2:
[0045] The technical problem to be solved by this utility model is to provide a die-casting mold for preparing aluminum alloy information processing box structure.
[0046] A die-casting mold for preparing an aluminum alloy information processing box structure includes a fixed mold frame, a fixed mold core, a moving mold core, a moving mold frame, square iron, guide pillars, a moving mold base plate, a pouring mechanism, an ejection mechanism, and a core-pulling mechanism.
[0047] The gating mechanism includes a gating sleeve, a sprue, a runner, and an ingate.
[0048] The ejector mechanism includes an ejector base plate, an ejector panel, an ejector pin, and a return pin.
[0049] The core-pulling mechanism includes an inclined guide post, a slider, a slider seat, an inclined guide post fixing block, and a limiting block;
[0050] The fixed mold core is fixed on the fixed mold frame; the movable mold core is set on the movable mold frame, and a square iron and a movable mold base plate are fixedly installed on the other side of the movable mold frame; the guide post is fixed at both ends of the square iron surface, and holes for the guide post to pass through are opened at the four corners of the fixed mold frame and the movable mold frame; the movable mold frame, the square iron and the movable mold base plate are connected together by bolts;
[0051] The casting mechanism connects the fixed mold frame and the moving mold core, the ejector mechanism is located between the moving mold base plate and the moving mold frame, and the core-pulling mechanism is located on the moving mold core.
[0052] The surfaces of the fixed mold frame and the moving mold frame are rectangular.
[0053] The fixed mold frame has a gate on its surface, and the gate sleeve is fixed at the gate. The gate is a sprue with the sprue facing inward. The sprue is directly opposite a horizontal sprue on one side of the upper surface of the moving mold core. The end of the horizontal sprue is an ingate.
[0054] The upper surface of the moving mold core has a groove in the middle that is consistent with the structure of the box body. The ingate is connected to the groove. An overflow groove is provided on the three sides of the groove except for the side where the ingate is located. A cooling pipe is provided inside the moving mold core perpendicular to the horizontal runner. A cooling pipe is provided inside the moving mold core in the middle of the groove, parallel to the first cooling pipe.
[0055] The lower surface of the moving mold core is mounted on the moving mold frame. The moving mold frame has slots on two sides perpendicular to the horizontal runner, and limit blocks are installed thereon. Inclined guide pillars are installed on the limit blocks, and the inclined guide pillars are perpendicular to the mold opening direction at a 67° angle. Inclined guide pillar fixing blocks are installed on the upper part of the inclined guide pillars, and the inclined guide pillar fixing blocks are fixed on the fixed mold frame. The moving mold frame has a slot on one side opposite to the horizontal runner, and a slider seat is installed thereon. A slider is installed on the slider seat, and the slider is fixed to the moving mold frame by bolts.
[0056] The moving mold frame has pin holes for ejector pins and return pins to pass through, and the moving mold core has pin holes for ejector pins to pass through. One end of the ejector pin and the return pin are both mounted on the ejector pin panel. The ejector pin is mounted in the middle area of the ejector pin panel and connected to the surface of the moving mold core. The return pin is mounted at the four corners of the ejector pin panel and connected to the surface of the moving mold frame. The ejector pin panel is mounted on the ejector pin base plate. The ejector pin base plate is mounted on the moving mold base plate on both sides perpendicular to the side where the limiting block is located, and the ejector pin base plate can slide relative to the moving mold base plate.
[0057] The front end of the ejector pin is provided with a conical component.
[0058] The surfaces of the fixed mold core and the moving mold core are subjected to draft treatment.
[0059] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0060] In the above solution, a sliding block is used for demolding, which facilitates demolding and prevents product deformation during demolding. It also avoids dimensional changes caused by draft angle treatment. This mold facilitates demolding, ensures product dimensional accuracy, and reduces casting defects.
[0061] Example embodiments have been disclosed herein, and while specific terminology has been used, it is for general illustrative purposes only and should not be construed as limiting. In some embodiments, it will be apparent to those skilled in the art that features, characteristics, and / or elements described in connection with particular embodiments may be used alone, or in combination with features, characteristics, and / or elements described in connection with other embodiments, unless otherwise expressly indicated. Therefore, those skilled in the art will understand that various changes in form and detail may be made without departing from the scope of the invention as set forth by the appended claims.
Claims
1. A die casting mold for producing an aluminum alloy information processing cartridge structure, characterized by, The die frame, the fixed mold core, the movable mold core, the movable mold frame, the square iron, the guide column, the movable mold bottom plate, the pouring mechanism, the ejection mechanism and the core pulling mechanism are provided. The pouring mechanism comprises a sprue bushing, a straight sprue, a cross sprue and an inner gate. The ejection mechanism comprises a ejector rod bottom plate, an ejector rod face plate, an ejector pin and a return pin. The core pulling mechanism comprises an inclined guide column, a slider, a slider seat, an inclined guide column fixing block and a limiting block. The fixed mold core is fixed on the die frame. The movable mold core is arranged on the movable mold frame. The movable mold frame is fixedly installed with the square iron and the movable mold bottom plate on the other side.
2. A die casting mold for producing an aluminum alloy information processing cartridge structure according to claim 1, characterized by, The guide column is fixed on the surface of the square iron.
3. The die casting mold for manufacturing an aluminum alloy information processing cartridge structure according to claim 1, wherein The die frame and the movable mold frame are provided with holes for the guide column.
4. The die casting mold for manufacturing an aluminum alloy information processing cartridge structure according to claim 1, characterized by The movable mold frame, the square iron and the movable mold bottom plate are connected by bolts.
5. A die casting mold for producing an aluminum alloy information processing cartridge structure according to claim 4, wherein The pouring mechanism is connected with the die frame and the movable mold core.
6. A die casting mold for producing an aluminum alloy information processing cartridge structure according to claim 1, wherein The ejection mechanism is arranged between the movable mold bottom plate and the movable mold frame.
7. A die casting mold for producing an aluminum alloy information processing cartridge structure according to claim 1, wherein The core pulling mechanism is arranged on the movable mold core.
8. A die casting mold for producing an aluminum alloy information processing cartridge structure according to claim 1, characterized by, The metal melt is poured into the compression chamber.
9. The die casting mold for producing an aluminum alloy information processing cartridge structure according to Claim 1, wherein The die frame and the movable mold frame are rectangular.
10. The die casting mold for producing an aluminum alloy information processing cartridge structure according to Claim 1, wherein The die frame is provided with a gate. The sprue bushing is fixed on the gate. The straight sprue is inwards. The cross sprue is opposite to the inner gate. The inner gate is connected with the recess. The cooling pipeline is arranged in the movable mold core. The movable mold core is fixed on the movable mold frame. The movable mold frame is provided with the limiting block. The slider is fixed on the movable mold frame by bolts. The front end of the ejector pin is provided with a conical part. The surface of the fixed mold core and the movable mold core is treated by stripping.