Casting mold convenient to demold

Abstract

The utility model relates to a casting mold convenient to demold, and relates to the field of metal casting, the casting mold convenient to demold comprises a base, a first mold, a second mold, a driving assembly and a demolding assembly, the first mold is fixedly connected to the top of the base, and the driving assembly drives the second mold to be slidably connected to the top of the base; a first half cavity is formed in the side wall, close to the second mold, of the first mold, a through pouring hole is formed in the side wall, away from the base, of the first half cavity, a second half cavity is formed in the side wall, close to the first mold, of the second mold, and the first half cavity and the second half cavity can form a cavity; a first push plate is arranged in the first half cavity, a second push plate is arranged in the second half cavity, the demolding assembly comprises a first push part and a second push part, the first push part can drive the first push plate to push the part out of the first half cavity, and the second push part can drive the second push plate to push the part out of the second half cavity. According to the mold, a worker can conveniently take down a part from the mold.

Description

Technical Field

[0001] The present application relates to the field of metal casting, and in particular to a casting mold that is easy to demould. Background Art

[0002] Casting is one of the main methods for producing blank parts. It is to pour molten liquid metal into the cavity of the mold. After it cools and solidifies into shape, the mold is removed to obtain the part product of the desired shape.

[0003] Most casting molds are usually composed of two parts for easy demoulding. Before pouring, multiple bolts are used to assemble and fix the two parts of the mold, and then the liquid metal is injected into the cavity through the pouring hole. When demoulding, the bolts are removed one by one before the part product is taken out of the cavity.

[0004] Currently, when demolding a part, it is usually necessary to use tools to pry it out of the cavity, which is laborious and easy to damage the part. Utility Model Content

[0005] In order to facilitate the removal of part products from the mold cavity, the present application provides a casting mold that is easy to demold.

[0006] The present application provides a casting mold that is easy to demould, which adopts the following technical solution:

[0007] A casting mold for easy demolding comprises a base, a first mold, a second mold, a drive assembly, and a demolding assembly, wherein the first mold is fixedly connected to the top of the base, and the drive assembly drives the second mold to slide and connect to the top of the base, a first half cavity is defined on a side wall of the first mold close to the second mold, a through pouring hole is defined on a side wall of the first half cavity away from the base, and a second half cavity is defined on a side wall of the second mold close to the first mold, wherein the first half cavity and the second half cavity can form a single cavity;

[0008] A receiving groove is provided on the inner wall of the first half-cavity away from the second mold, and a first push plate is provided in the receiving groove. A clearance groove is provided on the inner wall of the second half-cavity away from the first mold, and a second push plate is provided in the clearance groove. The demoulding assembly includes a first pushing member and a second pushing member. The first pushing member can drive the first push plate to push the part out of the first half-cavity, and the second pushing member can drive the second push plate to push the part out of the second half-cavity.

[0009] By adopting the above technical solution, before pouring, the driving component is started to drive the second mold to move toward the first mold, so that the first half cavity and the second half cavity are combined into one cavity, and then the liquid metal is injected from the pouring hole. After it cools and solidifies, the driving component is started again to move the second mold away from the first mold. At the same time, the first pusher and the second pusher push the molded parts out of the first half cavity and the second half cavity, making it convenient for the staff to remove the parts.

[0010] Optionally, the driving assembly includes a motor, a connecting telescopic rod and a moving rod, a mounting plate is fixedly connected to the top of the base, the mounting plate is arranged on the side of the second mold away from the first mold, a support frame is provided on the side wall of the mounting plate away from the second mold, the motor is fixedly mounted on the support frame, the motor output shaft is fixedly connected to the fixed end of the connecting telescopic rod, one end of the moving rod is fixedly connected to the movable end of the connecting telescopic rod, and the other end is rotatably connected to the second mold, and the moving rod is passed through and threadedly connected to the mounting plate.

[0011] By adopting the above technical solution, the motor is started, and the motor output shaft drives the movable rod to rotate by connecting the telescopic rod. The movable rod drives the second mold to move toward the first mold until the second mold abuts against the first mold. During this process, the connected telescopic rod extends, driving the second mold to move stably while preventing the second mold from moving during the casting process.

[0012] Optionally, the first pushing member includes a rotating rod and two pushing blocks, an installation cavity is provided in the first mold, the installation cavity is communicated with the accommodating groove, the rotating rod is rotatably connected to the installation cavity, the two pushing blocks are respectively threadedly connected to the two ends of the rotating rod, the side walls of the two pushing blocks are both in contact with the inner wall of the installation cavity, and the first push plate is provided with a guide slope on the side wall close to the pushing block.

[0013] By adopting the above technical solution, after the part is formed, the driving assembly drives the second mold to move away from the first mold, and the part is ejected from the second half cavity. At the same time, the rotating rod is rotated to drive the two push blocks to move towards each other. During the movement, the push blocks will push the first push plate along the guide slope towards the second mold. As a result, the first push plate will eject the part from the first half cavity, and the staff does not need to work hard to remove the part.

[0014] Optionally, a spring is provided on the side wall of the first push plate away from the second mold, and one end of the spring away from the first push plate is fixedly connected to the inner wall of the installation cavity.

[0015] By adopting this technical solution, when the spring is in its normal state, the first push plate is located within the receiving groove, and the side wall of the first push plate near the second mold is flush with the inner wall of the first half-cavity, minimizing the impact on part molding. In addition, when the ejector block no longer abuts the first push plate, the first push plate returns to its original position under the elastic return action of the spring, eliminating the need for operator adjustment.

[0016] Optionally, the second pushing member is a pushing telescopic rod, which is arranged on the side of the second push plate away from the first mold, the movable end of the pushing telescopic rod is fixedly connected to the second push plate, and the rodless cavity of the connecting telescopic rod is connected to the rod cavity of the pushing telescopic rod.

[0017] By adopting the above technical solution, after the part is formed, the motor is started, and the motor output shaft drives the moving rod to rotate in the opposite direction through the connecting telescopic rod, driving the second mold to move away from the first mold. At this time, the connecting telescopic rod shortens, and the medium in the rodless cavity of the connecting telescopic rod is pressed into the rod cavity of the pushing telescopic rod, pushing the telescopic rod to extend, pushing the second push plate in the direction close to the first mold, and the second push plate pushes the part out of the second half cavity, eliminating the need for staff to laboriously remove the part from the second half cavity. Before pouring, the motor is started, driving the second mold to move in the direction close to the first mold. During this process, the connecting telescopic rod extends, pushing the medium in the rod cavity of the telescopic rod into the rodless cavity of the connecting telescopic rod, pushing the telescopic rod to shorten, and driving the second push plate to reset to the clearance groove, which will not affect the forming of the part.

[0018] Optionally, the demolding assembly also includes a transmission part, which includes a driving rack and a gear. One end of the driving rack is fixedly connected to the side wall of the second mold close to the first mold. The driving rack is passed through the first mold. The gear is coaxially fixedly connected to the rotating rod and meshed with the driving rack.

[0019] By adopting the above technical solution, when the second mold moves away from the first mold, it drives the driving rack to move in the horizontal direction, the driving rack drives the gear to rotate, the gear drives the rotating rod to rotate, and drives the two push blocks to approach each other, so that the first push plate can push the part out of the first half cavity without adding an additional power source.

[0020] Optionally, a sealing gasket is fixedly provided on the side wall of the first mold close to the second mold.

[0021] By adopting the above technical solution, the sealing performance of the cavity can be enhanced and the molding effect of the parts can be guaranteed.

[0022] Optionally, a guide groove is provided on the top of the base, and a sliding block is provided on the bottom of the second mold, and the sliding block is slidably connected to the guide groove.

[0023] By adopting the above technical solution, the second mold can move stably along the setting direction of the guide groove, and the occurrence of unqualified parts due to misalignment between the first mold and the second mold can be avoided as much as possible.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] When the second mold moves, the transmission member can drive the rotating rod to rotate, driving the two ejection blocks to move closer to or away from each other, thereby controlling the movement of the first ejector plate, making it easy to push the part out of the first half cavity without adding a power source;

[0026] When the motor starts to drive the second mold to move, the movement of the second push plate can be controlled by connecting the telescopic rod and pushing the extension or contraction of the telescopic rod, so that the second push plate can push the part out of the second half cavity or reset the second push plate;

[0027] A sealing gasket is provided between the first mold and the second mold to enhance the sealing of the mold cavity and ensure the molding effect of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the casting mold of this application;

[0029] Figure 2 It is a cross-sectional view of the casting mold of this application.

[0030] Explanation of the accompanying drawings: 1. Base; 11. Guide groove; 2. First mold; 21. First half cavity; 22. Casting hole; 23. Receiving groove; 24. Mounting cavity; 3. Second mold; 31. Second half cavity; 32. Make way groove; 33. Sliding block; 4. Driving assembly; 41. Motor; 42. Connecting telescopic rod; 43. Moving rod; 5. Demolding assembly; 51. First pushing member; 511. Rotating rod; 512. Pushing block; 52. Transmission member; 521. Driving rack; 522. Gear; 53. Second pushing member; 6. Sealing gasket; 7. Mounting plate; 71. Support frame; 8. First push plate; 9. Second push plate; 10. Spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-2 This application is described in further detail.

[0032] Reference Figure 1 and Figure 2The embodiment of the present application discloses a casting mold that is easy to demold, which includes a base 1, a first mold 2, a second mold 3, a drive assembly 4 and a demolding assembly 5. The base 1 is a square body. The first mold 2 is welded to the top of the base 1. A first half cavity 21 is provided on the side wall of the first mold 2. A through pouring hole 22 is provided on the side wall of the first half cavity 21 away from the base 1. The second mold 3 is slidably connected to the top of the base 1. A second half cavity 31 is provided on the side wall of the second mold 3 close to the first mold 2. The first half cavity 21 and the second half cavity 31 can be combined to form a cavity. In order to enhance the sealing of the cavity, a sealing gasket 6 is bonded to the side wall of the first mold 2 close to the second mold 3. The sealing gasket 6 is made of a high-temperature resistant material. The drive assembly 4 is arranged on the side of the second mold 3 away from the first mold 2 to drive the second mold 3 to move. The demolding assembly 5 drives the molded parts to be ejected from the first half cavity 21 and the second half cavity 31.

[0033] Reference Figure 2 The drive assembly 4 includes a motor 41, a connecting telescopic rod 42, and a moving rod 43. A mounting plate 7 is welded to the top of the base 1. The mounting plate 7 is a square body and is vertically arranged on the side of the second mold 3 away from the first mold 2. A support frame 71 is welded horizontally to the side wall of the mounting plate 7 away from the second mold 3. The motor 41 is fixedly mounted on the top of the support frame 71 by bolts. The connecting telescopic rod 42 is arranged in the horizontal direction. The fixed end of the connecting telescopic rod 42 is fixedly connected to the output shaft of the motor 41. The moving rod 43 is a threaded rod. One end of the moving rod 43 is fixedly connected to the movable end of the connecting telescopic rod 42, and the other end is rotatably connected to the second mold 3. The moving rod 43 passes through and is threadedly connected to the mounting plate 7.

[0034] Before pouring, start the motor 41. The output shaft of the motor 41 drives the moving rod 43 to rotate by connecting the telescopic rod 42. The moving rod 43 drives the second mold 3 to move in the direction close to the first mold 2 until the second mold 3 is pressed against the sealing gasket 6. During this process, the connecting telescopic rod 42 is extended. After the part is formed, start the motor 41 again. The output shaft of the motor 41 rotates in the opposite direction. The connecting telescopic rod 42 drives the moving rod 43 to rotate, driving the second mold 3 to move in the direction away from the first mold 2. During this process, the connecting telescopic rod 42 is shortened. It should be added that a guide groove 11 is provided at the top of the base 1 in the horizontal direction, and a sliding block 33 is integrally formed at the bottom of the second mold 3. The sliding block 33 is slidably connected to the guide groove 11. The side wall of the sliding block 33 fits with the inner wall of the guide groove 11, which can enhance the stability of the movement of the second mold 3.

[0035] A receiving groove 23 is provided on the inner wall of the first half cavity 21 away from the second mold 3, and a first push plate 8 is arranged in the receiving groove 23. Correspondingly, a clearance groove 32 is provided on the inner wall of the second half cavity 31 away from the first mold 2, and a second push plate 9 is arranged in the clearance groove 32. In this embodiment, the first push plate 8 and the second push plate 9 are both arranged in the vertical direction.

[0036] Reference Figure 1 and Figure 2 The demolding assembly 5 includes a first pusher 51, a transmission member 52, and a second pusher 53, wherein the first pusher 51 includes a rotating rod 511 and two push blocks 512. A mounting cavity 24 is provided in the first mold 2, and the mounting cavity 24 is connected to the receiving groove 23. The rotating rod 511 is a bidirectional screw, which is connected to the mounting cavity 24 in a vertical direction. The push blocks 512 are square bodies, and the two push blocks 512 are respectively threadedly connected to the two ends of the rotating rod 511. The side walls of the push blocks 512 fit the inner wall of the mounting cavity 24. It should be noted that a guide slope is provided on the side wall of the first push plate 8 close to the push blocks 512. The guide slope is inclined from the side close to the push blocks 512 to the side away from the push blocks 512 in the direction away from the second mold 3. A spring 10 is provided in the mounting cavity 24. One end of the spring 10 is welded to the side wall of the first push plate 8 away from the second mold 3, and the other end is welded to the inner wall of the mounting cavity 24.

[0037] The transmission member 52 includes a driving rack 521 and a gear 522. The driving rack 521 is horizontally arranged in the first mold 2, and one end of the driving rack 521 is welded to the side wall of the second mold 3 close to the first mold 2. The gear 522 is coaxially fixed to the bottom end of the rotating rod 511 and is meshed with the driving rack 521.

[0038] After the part is formed, the second mold 3 moves away from the first mold 2, driving the drive rack 521 to move horizontally. The drive rack 521 drives the gear 522 to rotate, and the gear 522 drives the rotating rod 511 to rotate, driving the two push blocks 512 toward each other. During the movement, the push blocks 512 push the first push plate 8 along the guide slope toward the second mold 3, so that the first push plate 8 can push the part out of the first half-cavity 21 without adding an additional power source. Before the next part is cast, the drive rack 521 moves along with the second mold 3 toward the first mold 2, driving the gear 522 to rotate the rotating rod 511, and the two push blocks 512 move away from each other. When the push blocks 512 no longer abut the first push plate 8, the first push plate 8 can return to its original position under the elastic return action of the spring 10.

[0039] The second pushing member 53 is a pushing telescopic rod, which is horizontally arranged on the side of the second push plate 9 away from the first mold 2. The movable end of the pushing telescopic rod is fixedly connected to the second push plate 9, and the rodless cavity of the connecting telescopic rod 42 is connected to the rod cavity of the pushing telescopic rod.

[0040] Thus, after the part is formed, the motor 41 is started, and the output shaft of the motor 41 drives the moving rod 43 to rotate through the connecting telescopic rod 42, driving the second mold 3 to move away from the first mold 2. At this time, the connecting telescopic rod 42 is shortened, and the medium in the rodless cavity of the connecting telescopic rod 42 is pressed into the rod cavity of the pushing telescopic rod, pushing the telescopic rod to extend, pushing the second push plate 9 in the direction close to the first mold 2, and the second push plate 9 pushes the part out of the second half cavity 31, eliminating the need for staff to laboriously remove the part from the second half cavity 31. Before pouring, the motor 41 is started, driving the second mold 3 to move in the direction close to the first mold 2. During this process, the connecting telescopic rod 42 is extended, pushing the medium in the rod cavity of the telescopic rod into the rodless cavity of the connecting telescopic rod 42, pushing the telescopic rod to shorten, and driving the second push plate 9 to return to the clearance groove 32, without affecting the forming of the part.

[0041] The principle of the casting mold for easy demolding according to the embodiment of the present application is as follows: After the part is formed, the motor 41 is started. The output shaft of the motor 41 drives the moving rod 43 to rotate through the connecting telescopic rod 42, driving the second mold 3 to move away from the first mold 2. During this process, the connecting telescopic rod 42 shortens, and the medium in the rodless cavity of the connecting telescopic rod 42 is pressed into the rod cavity of the pushing telescopic rod, pushing the telescopic rod to extend, driving the second push plate 9 to move toward the first mold 2, and the second push plate 9 pushes the part out of the second half-cavity 31. At the same time, the second mold 3 drives the driving rack 521 to move, driving the gear 522 to rotate the rotating rod 511, thereby causing the two push blocks 512 to approach each other. During the movement, the push blocks 512 push the first push plate 8 along the guide slope toward the second mold 3, so that the first push plate 8 can push the part out of the first half-cavity 21. This greatly facilitates the staff to remove the part from the cavity without damaging the part.

[0042] Before the next pouring, the motor 41 is started again. The output shaft of the motor 41 drives the moving rod 43 to rotate through the connecting telescopic rod 42, driving the second mold 3 to move in the direction close to the first mold 2 until the second mold 3 is tightly against the sealing gasket 6. During this process, the connecting telescopic rod 42 extends, pushing the medium in the rod cavity of the telescopic rod into the rodless cavity of the connecting telescopic rod 42, pushing the telescopic rod to shorten, and driving the second push plate 9 to return to the clearance groove 32. At the same time, the second mold 3 drives the driving rack 521 to move, driving the gear 522 to drive the rotating rod 511 to rotate in the opposite direction, and the two push blocks 512 move away from each other. When the push blocks 512 no longer abut against the first push plate 8, the first push plate 8 can return to its original position under the elastic return action of the spring 10, without affecting the part molding.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A casting mold that is easy to demould, characterized in that: The invention comprises a base (1), a first mold (2), a second mold (3), a driving assembly (4) and a demoulding assembly (5), wherein the first mold (2) is fixedly connected to the top of the base (1), the driving assembly (4) drives the second mold (3) to be slidably connected to the top of the base (1), a first half-cavity (21) is provided on the side wall of the first mold (2) close to the second mold (3), a through-casting hole (22) is provided on the side wall of the first half-cavity (21) away from the base (1), a second half-cavity (31) is provided on the side wall of the second mold (3) close to the first mold (2), and the first half-cavity (21) and the second half-cavity (31) can form a cavity; A receiving groove (23) is provided on the inner wall of the first half-cavity (21) away from the second mold (3), and a first push plate (8) is provided in the receiving groove (23). A clearance groove (32) is provided on the inner wall of the second half-cavity (31) away from the first mold (2), and a second push plate (9) is provided in the clearance groove (32). The demoulding assembly (5) includes a first push member (51) and a second push member (53). The first push member (51) can drive the first push plate (8) to push the part out of the first half-cavity (21), and the second push member (53) can drive the second push plate (9) to push the part out of the second half-cavity (31).

2. The casting mold for easy demoulding according to claim 1, characterized in that: The driving assembly (4) includes a motor (41), a connecting telescopic rod (42) and a moving rod (43); a mounting plate (7) is fixedly connected to the top of the base (1); the mounting plate (7) is arranged on the side of the second mold (3) away from the first mold (2); a support frame (71) is arranged on the side wall of the mounting plate (7) away from the second mold (3); the motor (41) is fixedly mounted on the support frame (71); the output shaft of the motor (41) is fixedly connected to the fixed end of the connecting telescopic rod (42); one end of the moving rod (43) is fixedly connected to the movable end of the connecting telescopic rod (42); the other end is rotatably connected to the second mold (3); the moving rod (43) is passed through and threadedly connected to the mounting plate (7).

3. The casting mold for easy demoulding according to claim 1, characterized in that: The first pushing member (51) includes a rotating rod (511) and two pushing blocks (512). A mounting cavity (24) is provided in the first mold (2). The mounting cavity (24) is communicated with the accommodating groove (23). The rotating rod (511) is rotatably connected to the mounting cavity (24). The two pushing blocks (512) are respectively threadedly connected to the two ends of the rotating rod (511). The side walls of the two pushing blocks (512) are both in contact with the inner wall of the mounting cavity (24). A guiding inclined surface is provided on the side wall of the first pushing plate (8) close to the pushing block (512).

4. The casting mold for easy demoulding according to claim 3, characterized in that: A spring (10) is provided on the side wall of the first push plate (8) away from the second mold (3), and one end of the spring (10) away from the first push plate (8) is fixedly connected to the inner wall of the installation cavity (24).

5. The casting mold for easy demoulding according to claim 2, characterized in that: The second pushing member (53) is a pushing telescopic rod, which is arranged on the side of the second pushing plate (9) away from the first mold (2). The movable end of the pushing telescopic rod is fixedly connected to the second pushing plate (9), and the rodless cavity of the connecting telescopic rod (42) is connected to the rod cavity of the pushing telescopic rod.

6. The casting mold for easy demoulding according to claim 3, characterized in that: The demoulding assembly (5) further includes a transmission member (52), the transmission member (52) including a driving rack (521) and a gear (522), one end of the driving rack (521) being fixedly connected to the side wall of the second mold (3) close to the first mold (2), the driving rack (521) being passed through the first mold (2), and the gear (522) being coaxially fixedly connected to the rotating rod (511) and meshingly connected to the driving rack (521).

7. The casting mold for easy demoulding according to claim 1, characterized in that: A sealing gasket (6) is fixedly provided on the side wall of the first mold (2) close to the second mold (3).

8. The casting mold for easy demoulding according to claim 1, characterized in that: A guide groove (11) is provided on the top of the base (1), and a sliding block (33) is provided on the bottom of the second mold (3), wherein the sliding block (33) is slidably connected in the guide groove (11).

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