A die casting mold facilitating ejection

Abstract

The utility model relates to pressure die casting mould technical field proposes a kind of pressure die casting mould convenient to eject, comprising: bottom plate;Setting the connecting rod of bottom plate upper surface and the top plate fixedly set in the end of connecting rod;The top of the bottom plate is provided with fixed plate, and the fixed plate is fixedly connected with bottom plate by connecting rod;The top of the fixed plate is provided with moving plate, and the moving plate is slidably connected with connecting rod;The lower surface of the moving plate is provided with upper backing plate, and the lower surface of the upper backing plate is fixedly provided with upper die. Through the setting of pre-tightening assembly, the outer wall of the top piece and the through groove can be tightly contacted, the distance between the two can be reduced, the liquid metal with strong flowability can be prevented from entering the through groove through the gap between them during pressure casting, the phenomenon of being unable to eject can be avoided, and the burrs at the place can be reduced. And through the setting of jacking assembly, the sliding plate is jacked up by jacking rod, and the moving rod is moved upward by gasket, and then the casting part is ejected.

Description

Technical Field

[0001] This utility model belongs to the field of die casting mold technology, and specifically relates to a die casting mold that is easy to eject. Background Technology

[0002] Die casting molds are key tools used in high-pressure casting processes. They are typically made of high-temperature resistant alloy steel and precision-machined to form cavities and runner systems. Molten metal is rapidly injected into the mold under high pressure, and after cooling, it is formed into complex metal parts. Widely used in the automotive and electronics industries, die casting molds offer advantages such as high efficiency, high precision, and mass production. Mold design must consider cooling, venting, and ejection structures to ensure product quality and mold life.

[0003] A known authorized patent with application number 202321405771.X discloses a die-casting machine that facilitates demolding. The machine includes a main body with an ejector plate and a support plate fixedly connected inside. Multiple sets of molds are arranged between the ejector plate and the support plate. Multiple injection pipes are located at the top of the ejector plate. A connecting plate is fixed to the output end of a first cylinder, and multiple push rods are fixedly connected to the top of the connecting plate. This die-casting machine, by activating a hydraulic cylinder, allows multiple push rods to slide inside the support plate, pushing the ejector plate inside the mold to slide inside the mold, thus ejecting the solidified die-casting part. This facilitates demolding. Simultaneously, a pusher plate on one side of the ejector plate pushes the demolded die-casting part towards the ejector plate, ultimately placing it into an external storage box for storage, facilitating the unloading of the die-casting part.

[0004] However, in implementing the relevant technology, the following problems were found in the above technical solution: the device can only die-cast and eject smaller die-casting parts, but it cannot eject larger die-casting parts smoothly.

[0005] Therefore, a die-casting mold that facilitates ejection is proposed to solve the above problems. Utility Model Content

[0006] This invention proposes a die-casting mold that facilitates ejection, solving the problem in related technologies where the device can only die-cast and eject smaller die-casting parts, but cannot eject larger die-casting parts smoothly.

[0007] The technical solution of this utility model is as follows: A die-casting mold that facilitates ejection, comprising: Base plate; A connecting rod is set on the upper surface of the base plate and a top plate is fixedly set at the end of the connecting rod; A fixing plate is provided above the base plate, and the fixing plate is fixedly connected to the base plate by a connecting rod; A movable plate is provided above the fixed plate, and the movable plate is slidably connected to the connecting rod; The lower surface of the movable plate is provided with an upper pad, and the lower surface of the upper pad is fixedly provided with an upper mold; A lower pad is fixedly disposed on the upper surface of the fixed plate, and a lower mold is fixedly disposed on the upper surface of the lower pad. The lower mold is equipped with an ejection assembly, which includes a pre-tightening assembly inside the lower mold and a lifting assembly on the upper surface of the base plate. The lifting assembly is used to eject the pre-tightening assembly, thereby ejecting the die-casting part. The pre-tightening assembly includes a through groove opened inside the lower mold and the lower pad plate and a moving rod slidably connected inside the through groove.

[0008] Preferably, the pre-tightening assembly further includes a top plate fixedly disposed at the top of the moving rod, the through groove being wider at the top and narrower at the bottom, and both the top plate and the moving rod being located inside the through groove.

[0009] Preferably, the pretensioning assembly further includes a connecting frame fixedly disposed on the lower surface of the fixed plate, a slide rod inserted inside the connecting frame, the other end of the slide rod being fixedly connected to the moving rod, a washer fixedly disposed at the end of the slide rod, and a spring sleeved on the outer wall of the moving rod.

[0010] Preferably, the lifting assembly includes a support rod fixedly mounted on the upper surface of the base plate and a sliding plate mounted on the outer wall of the support rod. The inner wall of the sliding plate is provided with a sliding sleeve, which is slidably connected to the support rod to improve the movement accuracy of the sliding plate. A lifting rod is fixedly installed on the upper surface of the base plate, and the output end of the lifting rod is fixedly connected to the slide plate.

[0011] Preferably, the upper surface of the skateboard is in contact with the pad, and the pad is in contact with the skateboard.

[0012] Preferably, a dispersion plate is provided on the lower surface of the lower pad, and the end of the support rod is fixedly connected to the dispersion plate to disperse the force exerted by the support rod on the lower pad and prevent the lower pad from deforming.

[0013] Preferably, a drive rod is provided on the upper surface of the top plate, the output end of the drive rod penetrates through the top plate, a support block is provided at the output end of the drive rod, and the other side of the support block is fixedly connected to the upper surface of the movable plate.

[0014] Preferably, a sealing ring is fixedly provided on the lower surface of the top plate to prevent substances from seeping into the interior of the through groove.

[0015] Preferably, the outer wall of the movable plate is provided with a sliding sleeve identical to that of the sliding plate to improve the movement accuracy of the movable plate.

[0016] Preferably, the spring is located between the washer and the connecting frame to ensure a continuous downward pressure on the moving rod.

[0017] The working principle and beneficial effects of this utility model are as follows: By setting the pre-tightening component, it is possible to ensure that the top plate is in tight contact with the outer wall of the through groove, reducing the gap between the two and preventing highly fluid liquid metal from entering the through groove through the gap during die casting, thus avoiding the phenomenon of being unable to be ejected. It also reduces burrs at this point. Furthermore, by setting the lifting component, the sliding plate is lifted by the lifting rod, and the moving rod is moved upward by the shim, thereby ejecting the casting. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention; Figure 3 This is a cross-sectional three-dimensional structural diagram of the lower mold of this utility model; Figure 4 This utility model Figure 3 A magnified structural diagram at point A in the diagram.

[0020] In the diagram: 1. Base plate; 2. Top plate; 3. Fixed plate; 4. Moving plate; 5. Lower pad plate; 6. Lower mold; 7. Slide plate; 8. Support rod; 9. Lifting rod; 10. Sliding sleeve; 11. Dispersion plate; 12. Upper pad plate; 13. Upper mold; 14. Drive rod; 15. Top piece; 16. Sealing ring; 17. Moving rod; 18. Connecting frame; 19. Spring; 20. Gasket; 21. Slide rod; 22. Support block; 23. Connecting rod; 24. Through groove. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0022] Implementation Please see Figure 1 -4, a die-casting mold for easy ejection, comprising: Base plate 1; The connecting rod 23 is set on the upper surface of the base plate 1 and the top plate 2 is fixedly set at the end of the connecting rod 23; A fixing plate 3 is provided above the base plate 1, and the fixing plate 3 is fixedly connected to the base plate 1 by a connecting rod 23; A movable plate 4 is provided above the fixed plate 3, and the movable plate 4 is slidably connected to the connecting rod 23; The lower surface of the movable plate 4 is provided with an upper pad 12, and the lower surface of the upper pad 12 is fixedly provided with an upper mold 13; A lower pad 5 is fixedly installed on the upper surface of the fixed plate 3, and a lower mold 6 is fixedly installed on the upper surface of the lower pad 5. The lower mold 6 is provided with an ejection assembly. The ejection assembly includes a pre-tightening assembly provided inside the lower mold 6 and a lifting assembly provided on the upper surface of the base plate 1. The lifting assembly is used to eject the pre-tightening assembly, thereby ejecting the die casting. The pre-tightening assembly includes a through groove 24 opened inside the lower mold 6 and the lower pad 5 and a moving rod 17 slidably connected inside the through groove 24. The pre-tightening assembly also includes a top piece 15 fixedly mounted on the top of the moving rod 17. The through groove 24 is configured to be larger at the top and smaller at the bottom. Both the top piece 15 and the moving rod 17 are located inside the through groove 24. The pre-tightening assembly also includes a connecting frame 18 fixedly disposed on the lower surface of the fixed plate 3. A slide rod 21 is inserted into the inside of the connecting frame 18. The other end of the slide rod 21 is fixedly connected to the moving rod 17. A gasket 20 is fixedly disposed at the end of the slide rod 21. A spring 19 is sleeved on the outer wall of the moving rod 17. The lifting assembly includes a support rod 8 fixedly mounted on the upper surface of the base plate 1 and a sliding plate 7 mounted on the outer wall of the support rod 8. The inner wall of the sliding plate 7 is provided with a sliding sleeve 10, which is slidably connected to the support rod 8 to improve the movement accuracy of the sliding plate 7. A lifting rod 9 is fixedly installed on the upper surface of the base plate 1, and the output end of the lifting rod 9 is fixedly connected to the slide plate 7; The upper surface of the skateboard 7 is in contact with the pad 20, and the pad 20 is in contact with the skateboard 7; A dispersion plate 11 is provided on the lower surface of the lower pad 5. The end of the support rod 8 is fixedly connected to the dispersion plate 11 to disperse the force of the support rod 8 on the lower pad 5 and prevent the lower pad 5 from deforming. A drive rod 14 is provided on the upper surface of the top plate 2. The output end of the drive rod 14 passes through the top plate 2. A support block 22 is provided on the output end of the drive rod 14. The other side of the support block 22 is fixedly connected to the upper surface of the movable plate 4. A sealing ring 16 is fixedly provided on the lower surface of the top plate 15 to prevent substances from seeping into the interior of the through groove 24; The outer wall of the movable plate 4 is provided with a sliding sleeve 10, which is the same as that of the sliding plate 7, to improve the motion accuracy of the movable plate 4. Spring 19 is located between washer 20 and connecting frame 18 to ensure continuous downward pressure on moving rod 17.

[0023] The technical solution provided in this embodiment is as follows: In use, firstly, the drive rod 14 is activated, which drives the moving plate 4 to move downward and bring the upper mold 13 and the lower mold 6 into close contact. After they are in close contact, liquid metal is injected into the space between the upper mold 13 and the lower mold 6 through the injection port. After cooling for a period of time, the casting solidifies. Then, the drive rod 14 is restarted to pull the moving plate 4 upward, thereby separating the upper mold 13 and the lower mold 6. After separation, the lifting rod 9 is activated, which moves the sliding plate 7 upward and pushes the shim 20, thereby moving the moving rod 17 upward and causing the top plate 15 to move upward. Through the lifting of the top plate 15, the casting is separated from the lower mold 6, and then the casting can be removed. When injecting liquid metal, the spring 19 provides continuous downward pressure on the shim 20, reducing the distance between the top plate 15 and the lower mold 6, and preventing liquid metal from entering the interior of the through groove 24, which could lead to equipment damage.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A die-casting mold for easy ejection, characterized in that, include: Base plate (1); A connecting rod (23) is set on the upper surface of the base plate (1) and a top plate (2) is fixedly set at the end of the connecting rod (23); A fixing plate (3) is provided above the base plate (1), and the fixing plate (3) is fixedly connected to the base plate (1) by a connecting rod (23); A movable plate (4) is provided above the fixed plate (3), and the movable plate (4) is slidably connected to the connecting rod (23); The lower surface of the movable plate (4) is provided with an upper pad (12), and the lower surface of the upper pad (12) is fixedly provided with an upper mold (13). A lower pad (5) is fixedly provided on the upper surface of the fixed plate (3), and a lower mold (6) is fixedly provided on the upper surface of the lower pad (5). The lower mold (6) is provided with an ejection assembly. The ejection assembly includes a pre-tightening assembly provided inside the lower mold (6) and a lifting assembly provided on the upper surface of the base plate (1). The lifting assembly is used to eject the pre-tightening assembly, thereby ejecting the die casting. The pre-tightening assembly includes a through groove (24) opened inside the lower mold (6) and the lower pad plate (5) and a moving rod (17) slidably connected inside the through groove (24).

2. The die-casting mold for easy ejection according to claim 1, characterized in that: The pre-tightening assembly also includes a top piece (15) fixedly disposed at the top of the moving rod (17). The through groove (24) is configured to be larger at the top and smaller at the bottom. Both the top piece (15) and the moving rod (17) are located inside the through groove (24).

3. The die-casting mold for easy ejection according to claim 1, characterized in that: The pre-tightening assembly also includes a connecting frame (18) fixedly disposed on the lower surface of the fixed plate (3). A slide rod (21) is inserted inside the connecting frame (18). The other end of the slide rod (21) is pre-connected to the moving rod (17). A gasket (20) is fixedly disposed at the end of the slide rod (21). A spring (19) is sleeved on the outer wall of the moving rod (17).

4. The die-casting mold for easy ejection according to claim 1, characterized in that: The lifting assembly includes a support rod (8) fixedly mounted on the upper surface of the base plate (1) and a sliding plate (7) mounted on the outer wall of the support rod (8). The inner wall of the sliding plate (7) is provided with a sliding sleeve (10), which is slidably connected to the support rod (8) to improve the movement accuracy of the sliding plate (7). A lifting rod (9) is fixedly installed on the upper surface of the base plate (1), and the output end of the lifting rod (9) is fixedly connected to the slide plate (7).

5. The die-casting mold for easy ejection according to claim 4, characterized in that: The upper surface of the slide plate (7) is in contact with the pad (20), and the pad (20) is in contact with the slide plate (7).

6. The die-casting mold for easy ejection according to claim 4, characterized in that: The lower surface of the lower pad (5) is provided with a dispersion plate (11), and the end of the support rod (8) is fixedly connected to the dispersion plate (11) to disperse the force of the support rod (8) on the lower pad (5) and prevent the lower pad (5) from deforming.

7. The die-casting mold for easy ejection according to claim 1, characterized in that: A drive rod (14) is provided on the upper surface of the top plate (2). The output end of the drive rod (14) passes through the top plate (2). A support block (22) is provided on the output end of the drive rod (14). The other side of the support block (22) is fixedly connected to the upper surface of the moving plate (4).

8. A die-casting mold for easy ejection according to claim 2, characterized in that: A sealing ring (16) is fixedly provided on the lower surface of the top plate (15) to prevent substances from seeping into the interior of the through groove (24).

9. A die-casting mold for easy ejection according to claim 4, characterized in that: The outer wall of the moving plate (4) is provided with a sliding sleeve (10) that is the same as that of the sliding plate (7) to improve the motion accuracy of the moving plate (4).

10. A die-casting mold for easy ejection according to claim 3, characterized in that: The spring (19) is located between the pad (20) and the connecting frame (18) to ensure a continuous downward pressure on the moving rod (17).

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