Magnesium alloy main plate support piece die-casting die

Abstract

The utility model discloses a magnesium alloy mainboard support spare die casting mould, and this mould aims at solving the problem that the existing magnesium alloy mainboard support spare die casting forming will have the recess, the projection, the channel feature, and the die casting mould is difficult to form the complex magnesium alloy mainboard support spare. The mould includes the upper die holder and the lower die holder, and the upper die holder and the lower die holder are fixedly connected with the upper die core and the lower die core respectively on the side close to each other, the upper surface of lower die holder is provided with the through groove evenly, and the both sides inner wall of through groove is fixedly connected with the fixed link, and the movable block is slidably arranged between two fixed links. The utility model is provided with the core-pulling mould of helping the recess, the projection, the channel formation of support spare on the outside of upper die core and lower die core, and the inclined guide pin on the upper die holder pushes the movable block and the core-pulling mould to move to the outside when demoulding, until the core-pulling mould completely separates from the formed support spare, thereby demoulding from the top and the side, and better forming the complex magnesium alloy mainboard support spare.

Description

Technical Field

[0001] This utility model belongs to the field of motherboard support component molding technology, specifically relating to a magnesium alloy motherboard support component die casting mold. Background Technology

[0002] With the rapid development of technology, electronic devices are moving towards thinner, lighter, and higher-performance designs, which places higher demands on the materials and manufacturing processes of their internal components. Magnesium alloys, as a lightweight, high-strength, high-rigidity metal material with good electromagnetic shielding and heat dissipation properties, are being used more and more widely in the field of computer components. For example, many laptop casings, internal frames, and heat dissipation modules are beginning to use magnesium alloys to achieve lightweight and high-performance devices.

[0003] The advantages of die casting are fast production speed, high efficiency, and automated operation, making it suitable for mass production molding and processing. However, when die casting magnesium alloy motherboard support parts, due to the characteristics of grooves, protrusions, and channels, the support parts cannot be easily demolded in one direction. Die casting molds are difficult to form complex magnesium alloy motherboard support parts. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a die-casting mold for magnesium alloy motherboard support components. This mold aims to solve the problem that existing magnesium alloy motherboard support components have grooves, protrusions, and channels during die casting, which makes it difficult for the support component to be easily demolded in one direction, and the die-casting mold is difficult to form complex magnesium alloy motherboard support components.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a die-casting mold for magnesium alloy motherboard support components. The mold includes an upper mold base and a lower mold base. An upper mold core and a lower mold core are fixedly connected to each other on the side of the upper mold base and the lower mold base respectively. A through groove is opened on all four sides of the upper surface of the lower mold base. A fixing rod is fixedly connected to the inner wall of each side of the through groove. A movable block is slidably arranged between the two fixing rods. A limit rod is fixedly connected to the outside of the fixing rod. A core-pulling mold is fixedly connected to the inside of the movable block. A support cavity is formed between the four corners of the upper mold core and the lower mold core and the core-pulling mold. An inclined guide post is fixedly connected to all four sides of the lower surface of the upper mold base. An inclined guide hole corresponding to the inclined guide post is opened on the movable block.

[0008] Preferably, the movable block includes a fixedly connected mounting part and a sliding part. Grooves are provided on all four sides of the lower surface of the upper mold base. The mounting part is located inside the groove. Slide grooves are provided on the side of the two fixed rods that are close to each other. Slider blocks are fixedly connected to the front and rear sides of the sliding part. The slider blocks are slidably connected inside the slide grooves.

[0009] Furthermore, the upper and lower mold cores are provided with positioning grooves on all four sides corresponding to the core-pulling mold, and the positioning grooves are connected to the cavity of the support component.

[0010] Furthermore, a sprue bushing is installed in the middle of the upper mold base, and a sprue is opened in the middle of the sprue bushing. A guide post is fixedly connected to the middle of the upper surface of the lower mold core. The top of the guide post extends into the interior of the sprue. Both the outer surface of the guide post and the upper surface of the lower mold core are provided with runners, which are connected to the cavity of the support component.

[0011] Furthermore, the bottom end of the inclined guide post is rounded, and the inner bottom wall of the through groove is provided with a clearance groove corresponding to the inclined guide post.

[0012] Furthermore, guide holes are provided at the four corners of the upper surface of the lower mold base, and guide posts corresponding to the guide holes are fixedly connected at the four corners of the lower surface of the upper mold base.

[0013] Furthermore, the lower mold base has a base plate fixedly connected to both sides of the lower surface via support plates. A demolding template is set between the two support plates. Multiple demolding ejector pins are fixedly connected to the upper surface of the demolding template. The top of the demolding ejector pins extends to the cavity and runner of the support component.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a core-pulling mold with grooves, protrusions, and channels on the outer sides of the upper and lower mold cores to help form support components. After mold closing, the upper mold core, lower mold core, and core-pulling mold form a support component cavity between the four corners. After die casting, the upper and lower mold cores separate for mold opening. Since the movable block can only move laterally along the through slot, the inclined guide post on the upper mold base slides in the inclined guide hole and pushes the movable block and core-pulling mold to move outward until the core-pulling mold completely detaches from the formed support component. Then, the demolding plate moves the demolding ejector rod upward to push out the formed support component. Thus, by demolding from above and the side, complex magnesium alloy mainboard support components can be better formed. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a frontal cross-sectional structural diagram of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the lower mold base of this utility model.

[0020] Figure 4 This is the utility model Figure 3 A magnified structural diagram of point A in the middle.

[0021] Figure 5 This is a three-dimensional structural diagram of the upper mold base of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the movable block of this utility model.

[0023] Figure 7 This is a structural schematic diagram of the motherboard support component of this utility model.

[0024] The markings in the attached diagram are as follows: 1. Upper mold base; 2. Lower mold base; 3. Upper mold core; 4. Lower mold core; 5. Through slot; 6. Fixed rod; 7. Movable block; 8. Limiting rod; 9. Core-pulling mold; 10. Support cavity; 11. Angled guide post; 12. Angled guide hole; 13. Guide post; 14. Guide hole; 101. Sprue sleeve; 102. Sprue; 401. Guide post; 402. Runner; 701. Mounting part; 702. Sliding part; 703. Slide groove; 704. Slider; 705. Groove; 901. Positioning groove; 201. Support plate; 202. Base plate; 203. Demolding template; 204. Demolding ejector pin; 1101. Clearance groove. Detailed Implementation

[0025] This specific embodiment is a die-casting mold for a magnesium alloy motherboard support component. This mold is used for die casting. Figure 7 The motherboard support component shown is illustrated in the schematic diagram of the mold structure. Figures 1-6 As shown, the mold includes an upper mold base 1 and a lower mold base 2. An upper mold core 3 and a lower mold core 4 are fixedly connected to the adjacent sides of the upper mold base 1 and the lower mold base 2, respectively. The upper surface of the lower mold base 2 has through grooves 5 on all four sides. Fixed rods 6 are fixedly connected to the inner walls of both sides of the through grooves 5. A movable block 7 is slidably arranged between the two fixed rods 6. A limit rod 8 is fixedly connected to the outside of the fixed rod 6. The limit rod 8 prevents the movable block 7 from disengaging, so that the inclined guide post 11 is located inside the inclined guide hole 12. A core-pulling mold 9 is fixedly connected to the inner side of the movable block 7. The four corners between the upper mold core 3 and the lower mold core 4 form a support cavity 10 between the core-pulling mold 9 and the core-pulling mold 9. The lower surface of the upper mold base 1 has inclined guide posts 11 fixedly connected to all four sides. An inclined guide hole 12 corresponding to the inclined guide post 11 is opened on the movable block 7.

[0026] like Figure 3 , Figure 4 and Figure 6As shown: In this embodiment, the movable block 7 includes a fixedly connected mounting part 701 and a sliding part 702. The lower surface of the upper mold base 1 has grooves 705 on all four sides. The mounting part 701 is located inside the grooves 705. The two fixed rods 6 have sliding grooves 703 on their adjacent sides. The sliding part 702 has sliders 704 fixedly connected to both the front and rear sides. The sliders 704 are slidably connected inside the sliding grooves 703. In this way, the sliders 704 on the movable block 7 can move along the sliding grooves 703, and the inclined guide post 11 will not cause the movable block 7 to move upward.

[0027] like Figure 3 and Figure 5 As shown: In this embodiment, the upper mold core 3 and the lower mold core 4 are provided with positioning grooves 901 on all four sides, which correspond to the core-pulling mold 9. The positioning grooves 901 are connected to the support cavity 10. When the upper mold base 1 and the lower mold base 2 are closed, the core-pulling mold 9 can be inserted into the positioning grooves 901. At this time, the upper mold core 3, the lower mold core 4 and the core-pulling mold 9 form the support cavity 10 between the four corners.

[0028] like Figure 1 , Figure 3 and Figure 5 As shown: In this embodiment, a sprue sleeve 101 is installed in the middle of the upper mold base 1, and a sprue 102 is opened in the middle of the sprue sleeve 101. A guide post 401 is fixedly connected to the middle of the upper surface of the lower mold core 4. The top of the guide post 401 extends into the interior of the sprue 102. Both the outer surface of the guide post 401 and the upper surface of the lower mold core 4 are provided with flow channels 402, which are connected to the support cavity 10. In this way, the injection punch of the die casting machine injects molten metal from the sprue 102 at high pressure and high speed, and then the molten metal quickly fills the support cavity 10 along the flow channel 402.

[0029] like Figure 2 and Figure 5 As shown: In this embodiment, the bottom end of the inclined guide post 11 is provided with a rounded corner, and the inner bottom wall of the through groove 5 is provided with a relief groove 1101 corresponding to the inclined guide post 11; in this way, the inclined guide post 11 can be precisely aligned with the inclined guide hole 12. When the upper mold base 1 and the lower mold base 2 are closed, the bottom end of the inclined guide post 11 is located in the relief groove 1101, which will not affect the mold closing.

[0030] like Figure 3 and Figure 5 As shown: In this embodiment, guide holes 14 are provided at the four corners of the upper surface of the lower mold base 2, and guide posts 13 corresponding to the guide holes 14 are fixedly connected at the four corners of the lower surface of the upper mold base 1. The cooperation between the guide holes 14 and the guide posts 13 can make the mold closing of the upper mold base 1 and the lower mold base 2 more precise and avoid shaking.

[0031] like Figure 1 and Figure 2As shown: In this embodiment, the lower mold base 2 has a base plate 202 fixedly connected to both the left and right sides of the lower surface of the mold base 2 via a support plate 201. A demolding template 203 is provided between the two support plates 201. Multiple demolding ejector rods 204 are fixedly connected to the upper surface of the demolding template 203. The top of the demolding ejector rods 204 extends to the support cavity 10 and the flow channel 402. Guide rods are fixedly connected to the four corners of the upper surface of the demolding template. Guide holes corresponding to the guide rods are opened on the lower mold base. When the demolding template 203 drives the demolding ejector rods 204 to move upward, the multiple demolding ejector rods 204 can push out the formed support.

[0032] Working principle: Movable blocks 7 and core-pulling molds 9, which aid in the forming of the support component, are provided on the outer sides of the upper mold core 3 and lower mold core 4. When the upper mold base 1 and lower mold base 2 are closed, the upper mold core 3, lower mold core 4, and core-pulling mold 9 form the support component cavity 10 between the four corners. Then, the injection punch of the die-casting machine injects molten metal from the gate 102 at high pressure and high speed. The molten metal then rapidly fills the support component cavity 10 along the runner 402, and then enters the holding pressure stage. When the support component solidifies to a certain extent, the mold begins to open. At this time, the upper mold base 1 drives the upper mold core 3 to separate from the lower mold core 4 on the lower mold base 2. Because the movable block 7 can only... Moving laterally along the through slot 5, the inclined guide post 11 on the upper mold base 1 slides in the inclined guide hole 12 and pushes the movable block 7 and the core-pulling mold 9 to move outward until the core-pulling mold 9 completely detaches from the formed support. Then, the ejector plate 203 drives the ejector rod 204 to move upward and push out the formed support. When the mold is closed, the inclined guide post 11 is located inside the inclined guide hole 12. When the upper mold core 3 on the upper mold base 1 moves downward, the inclined guide post 11 pushes the inner wall of the inclined guide hole 12 to make the movable block 7 and the core-pulling mold 9 move inward. Thus, the upper mold core 3, the lower mold core 4 and the core-pulling mold 9 form the support cavity 10 between the four corners, waiting for the next forming.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A die-casting mold for a magnesium alloy motherboard support component, the mold comprising an upper mold base (1) and a lower mold base (2), characterized in that: The upper mold base (1) and the lower mold base (2) are respectively fixedly connected to the upper mold core (3) and the lower mold core (4) on the side close to each other. The upper surface of the lower mold base (2) is provided with through grooves (5) on all four sides. The inner walls of the two sides of the through grooves (5) are fixedly connected with fixing rods (6). A movable block (7) is slidably arranged between the two fixing rods (6). A limit rod (8) is fixedly connected to the outside of the fixing rods (6). A core-pulling mold (9) is fixedly connected to the inside of the movable block (7). The four corners between the upper mold core (3) and the lower mold core (4) are formed with the core-pulling mold (9) to form a support cavity (10). The lower surface of the upper mold base (1) is fixedly connected with inclined guide posts (11) on all four sides. An inclined guide hole (12) corresponding to the inclined guide post (11) is opened on the movable block (7).

2. The die-casting mold for the magnesium alloy motherboard support component according to claim 1, characterized in that, The movable block (7) includes a fixedly connected mounting part (701) and a sliding part (702). The lower surface of the upper mold base (1) is provided with grooves (705) on all four sides. The mounting part (701) is located inside the groove (705). The two fixed rods (6) are provided with sliding grooves (703) on the side that are close to each other. The sliding part (702) is fixedly connected with sliders (704) on both the front and rear sides. The sliders (704) are slidably connected inside the sliding grooves (703).

3. The die-casting mold for the magnesium alloy motherboard support component according to claim 2, characterized in that, The upper mold core (3) and the lower mold core (4) are provided with positioning grooves (901) on all four sides, which correspond to the core-pulling mold (9). The positioning grooves (901) are connected to the support cavity (10).

4. The die-casting mold for the magnesium alloy motherboard support component according to claim 3, characterized in that, A sprue sleeve (101) is installed in the middle of the upper mold base (1), and a sprue (102) is opened in the middle of the sprue sleeve (101). A guide post (401) is fixedly connected to the middle of the upper surface of the lower mold core (4). The top of the guide post (401) extends into the interior of the sprue (102). A flow channel (402) is opened on the outer surface of the guide post (401) and the upper surface of the lower mold core (4). The flow channel (402) is connected to the cavity (10) of the support member.

5. The die-casting mold for the magnesium alloy motherboard support component according to claim 4, characterized in that, The bottom end of the inclined guide post (11) is provided with a rounded corner, and the inner bottom wall of the through groove (5) is provided with a relief groove (1101) corresponding to the inclined guide post (11).

6. The die-casting mold for the magnesium alloy motherboard support component according to claim 5, characterized in that, The upper surface of the lower mold base (2) is provided with guide holes (14) at all four corners, and the lower surface of the upper mold base (1) is fixedly connected with guide posts (13) corresponding to the guide holes (14) at all four corners.

7. The die-casting mold for the magnesium alloy motherboard support component according to claim 6, characterized in that, The lower mold base (2) has a base plate (202) fixedly connected to the left and right sides of the lower surface through a support plate (201). A demolding template (203) is provided between the two support plates (201). Multiple demolding ejector rods (204) are fixedly connected to the upper surface of the demolding template (203). The top of the demolding ejector rods (204) extends to the support cavity (10) and the flow channel (402).

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