Brake disc casting core production mold

Abstract

The utility model discloses a brake disc casting core production mold, which relates to the field of casting sand core molding and comprises a lower fixing plate, mounting racks are fixedly mounted at four corners of the bottom end of the lower fixing plate, and hollow guide columns penetrating to the upper part of the lower fixing plate are fixedly mounted at the tops of the mounting racks. An upper fixing plate is fixedly installed on the periphery of the hollow guide column, a sliding plate is connected to the outer wall of the hollow guide column in an up-down sliding mode, a lower die is installed on the top of the lower fixing plate, and an upper die is installed at the bottom of the sliding plate. According to the utility model, by arranging the sliding mechanism, when the sliding plate moves upwards, the sliding plate which is in contact with the sliding mechanism and continuously moves upwards pushes the sliding mechanism to move upwards, and the sliding mechanism which moves upwards can push the demolding mechanism to move upwards, so that the ejection of a molded sand core is realized, the mold opening ejection effect is realized, and the cost is lower; the operation is simple.

Description

Technical Field

[0001] The utility model relates to the field of casting sand core molding, in particular to a brake disc casting core production mold. Background Art

[0002] The casting sand core is a sand body forming device realized by the cooperation of the mold and the sand shooting machine, which plays a shaping role in the casting process.

[0003] The structure of the brake disc is relatively complex and is generally produced by casting, so it needs to be cast with a sand core.

[0004] Existing sand core molds are generally equipped with a demoulding mechanism, which has an independent driving mechanism to drive the demoulding mechanism to rise and fall independently. Manual operation or cooperation with limit switches is required to realize the action of the demoulding mechanism, which is costly. Utility Model Content

[0005] The purpose of the present invention is to provide a brake disc casting core production mold in order to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a brake disc casting core production mold, comprising a lower fixed plate, mounting brackets are fixedly installed at the four corners of the bottom end of the lower fixed plate, a hollow guide column penetrating to the top of the lower fixed plate is fixedly installed on the top of the mounting bracket, an upper fixed plate is fixedly installed on the outer periphery of the hollow guide column, a sliding plate is slidably connected to the outer wall of the hollow guide column, a lower mold is installed on the top of the lower fixed plate, an upper mold is installed on the bottom of the sliding plate, a sliding mechanism penetrating to the outside of the hollow guide column is slidably connected to the inside of the hollow guide column, and a demoulding mechanism is connected to the top of the sliding mechanism;

[0007] The upwardly moving sliding plate is used to drive the sliding mechanism to move upward, the upwardly sliding mechanism is used to drive the demoulding mechanism to move upward, and the upwardly moving demoulding mechanism is used to eject the molding sand core from the inner cavity of the lower mold.

[0008] As a further solution of the present invention: electric push cylinders are installed at both ends of the lower fixed plate through a No. 1 fixed plate, and the output end of the electric push cylinder is connected to a No. 2 fixed plate fixedly connected to both ends of the sliding plate.

[0009] As a further solution of the present invention: the sliding mechanism includes a vertical groove vertically opened inside the hollow guide column, the inner wall of the vertical groove is connected to a push rod for sliding up and down, the inner wall of the hollow guide column is connected to a sliding rod for sliding up and down, the outer periphery of the sliding rod is fixedly connected to one end of the push rod, the top of the sliding rod is integrally formed with an anti-slip plate located above the upper fixed plate, the bottom end of the sliding rod passes through the bottom of the hollow guide column, and the bottom end of the sliding rod is connected to a lifting frame with a "U" type structure.

[0010] As a further solution of the present invention: the demoulding mechanism includes a fixed rod fixedly connected to the top of the lifting frame, a lifting plate is fixedly installed on the top of the fixed rod, and a plurality of demoulding rods are distributed on the top of the lifting plate. The demoulding rods penetrate to the bottom end of the inner wall of the lower mold, and the top of the demoulding rods is flush with the bottom end of the inner wall of the lower mold.

[0011] As a further solution of the present invention: a spring is connected between the bottom end of the mounting frame and the top of the lifting frame, and the spring in a compressed state is used to drive the sliding mechanism to reset downward.

[0012] As a further solution of the present invention: a sand shooting tube connected to a sand shooting machine is fixedly installed on the top of the upper mold, the sand shooting tube is slidably connected to the upper fixed plate, and the sand shooting tube is communicated with the inner cavity of the upper mold.

[0013] As a further solution of the present invention: a through groove is opened at the center of the lower fixed plate, and the through groove is used for allowing the lifting plate to move upward.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By setting up a sliding mechanism, when the sliding plate moves upward, it contacts the sliding mechanism, and the sliding plate that continues to move upward pushes the sliding mechanism to move upward. The upward moving sliding mechanism can push the demoulding mechanism to move upward, thereby ejecting the molding sand core and achieving the effect of mold opening and ejection. The cost is low and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0019] In the figure: 1. Lower fixed plate; 2. Upper fixed plate; 3. Hollow guide column; 4. Sliding plate; 5. Electric push cylinder; 6. Vertical slot; 7. Push rod; 8. Upper die; 9. Lower die; 10. Spring; 11. Lifting frame; 12. Fixed rod; 13. Mounting frame; 14. Lifting plate; 15. Demolding rod; 16. Sliding rod; 17. Through slot; 18. Sand-shooting tube. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 3 The top of the upper mold 8 is fixed with a sand shooting tube 18 connected to the sand shooting machine, and the sand shooting tube 18 is slidably connected to the upper mold 8.

[0022] In this embodiment: first, when performing sand casting, the release agent is sprayed on the inner cavity of the upper mold 8 and the lower mold 9, and then the upper mold 8 and the lower mold 9 are driven to close the mold. After the closing of the mold is completed, the sand shooting machine injects sand into the mold cavity through the sand shooting tube 18, and forms it by continuously applying pressure. After the sand core is formed, the mold is opened. At this time, the sliding plate 4 drives the upper mold 8 to move upward. The sliding plate 4 that moves upward to a certain height contacts the sliding mechanism. Therefore, the sliding mechanism that continues to move upward pulls the sliding mechanism to move upward as a whole, and the upward sliding mechanism drives the demoulding mechanism to move upward. The upward moving demoulding mechanism pushes the sand core formed in the lower mold 9 upward, thereby facilitating the staff to take out the formed sand core.

[0023] Please refer to Figure 1 and Figure 3The two ends of the lower fixed plate 1 are installed with an electric push cylinder 5 through a No. 1 fixed plate, and the output end of the electric push cylinder 5 is connected to a No. 2 fixed plate fixedly connected to both ends of the sliding plate 4.

[0024] In this embodiment: when opening or closing the mold, by starting the electric push cylinder 5, the up and down movement of the output end of the electric push cylinder 5 can drive the sliding plate 4 to move up and down through the No. 2 fixed plate. The sliding plate 4 moving upward from the lowest point is used to drive the upper mold 8 to open the mold, and the sliding plate 4 moving downward from the highest point is used to drive the upper mold 8 to close the mold.

[0025] Please refer to Figure 1 、 Figure 2 and Figure 3 The sliding mechanism includes a vertical slot 6 vertically opened inside the hollow guide column 3, and the inner wall of the vertical slot 6 is connected to the push rod 7 for sliding up and down sliding. The inner wall of the hollow guide column 3 is connected to the sliding rod 16 for sliding up and down sliding. The outer periphery of the sliding rod 16 is fixedly connected to one end of the push rod 7. The top of the sliding rod 16 is integrally formed with an anti-slip plate located above the upper fixed plate 2. The bottom end of the sliding rod 16 passes through the bottom of the hollow guide column 3. The bottom end of the sliding rod 16 is connected to a lifting frame 11 with a "return" structure. A spring 10 is connected between the bottom end of the mounting frame 13 and the top of the lifting frame 11. The compressed spring 10 is used to drive the sliding mechanism to reset downward.

[0026] In this embodiment, after the sliding plate 4 moves upward from the bottom to a certain height, the sliding plate 4 contacts the bottom end of the push rod 7. The sliding plate 4 continues to move upward, pushing the sliding rod 16 upward through the push rod 7. The upward sliding rod 16 drives the lifting frame 11 to move upward. The upward moving lifting frame 11 compresses the spring 10, and the lifting frame 11 pushes the demoulding mechanism to move upward synchronously. The upward moving demoulding mechanism can then eject the molding sand core in the lower mold 9.

[0027] When the upper mold 8 and the lower mold 9 are closed again, the spring 10 is reset and the sliding mechanism moves downward synchronously. The downward moving sliding mechanism drives the demoulding mechanism to move downward, thereby resetting the demoulding mechanism and avoiding interference with the sand core molding.

[0028] Please refer to Figure 1 and Figure 3 The demoulding mechanism includes a fixed rod 12 fixedly connected to the top of the lifting frame 11, and a lifting plate 14 is fixedly installed on the top of the fixed rod 12. A plurality of demoulding rods 15 are distributed on the top of the lifting plate 14. The demoulding rods 15 penetrate to the bottom end of the inner wall of the lower mold 9, and the top of the demoulding rods 15 is flush with the bottom end of the inner wall of the lower mold 9.

[0029] In this embodiment: the demoulding mechanism in the reset state will not interfere with the molding of the sand core. After the mold is opened, the lifting frame 11 pushes the fixed rod 12 to move upward, and the upward moving fixed rod 12 pushes the lifting plate 14 to move upward. The lifting plate 14 pushes the demoulding rod 15 to move upward, and the upward moving demoulding rod 15 pushes out the molded sand core, making it easier to manually remove the molded sand core.

[0030] Please refer to Figure 3 A through slot 17 is provided at the center of the lower fixed plate 1 , and the through slot 17 is used for allowing the lifting plate 14 to move upward.

[0031] In this embodiment, the through slot 17 can prevent the lifting plate 14 from being interfered with during the upward movement.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A brake disc casting core production mold, comprising a lower fixed plate (1), wherein mounting brackets (13) are fixedly mounted at the four corners of the bottom end of the lower fixed plate (1), a hollow guide column (3) penetrating to the top of the lower fixed plate (1) is fixedly mounted on the top of the mounting bracket (13), and an upper fixed plate (2) is fixedly mounted on the outer periphery of the hollow guide column (3), characterized in that: The outer wall of the hollow guide column (3) is slidably connected to a sliding plate (4) up and down, a lower mold (9) is installed on the top of the lower fixed plate (1), and an upper mold (8) is installed on the bottom of the sliding plate (4). The interior of the hollow guide column (3) is slidably connected to a sliding mechanism that extends to the outside of the hollow guide column (3), and a demoulding mechanism is connected to the top of the sliding mechanism; The upwardly moving sliding plate (4) is used to drive the sliding mechanism to move upward, the upwardly sliding mechanism is used to drive the demoulding mechanism to move upward, and the upwardly moving demoulding mechanism is used to eject the molding sand core in the inner cavity of the lower mold (9).

2. A brake disc casting core production mold according to claim 1, characterized in that: Electric push cylinders (5) are installed at both ends of the lower fixed plate (1) via a No. 1 fixed plate, and the output end of the electric push cylinder (5) is connected to a No. 2 fixed plate fixedly connected to both ends of the sliding plate (4).

3. The brake disc casting core production mold according to claim 1, characterized in that: The sliding mechanism includes a vertical groove (6) vertically opened inside the hollow guide column (3), the inner wall of the vertical groove (6) is connected to a push rod (7) in a sliding manner up and down, the inner wall of the hollow guide column (3) is connected to a sliding rod (16) in a sliding manner up and down, the outer periphery of the sliding rod (16) is fixedly connected to one end of the push rod (7), the top of the sliding rod (16) is integrally formed with an anti-slip plate located above the upper fixed plate (2), the bottom end of the sliding rod (16) passes through the bottom of the hollow guide column (3), and the bottom end of the sliding rod (16) is connected to a lifting frame (11) with a "return" structure.

4. A brake disc casting core production mold according to claim 3, characterized in that: The demoulding mechanism includes a fixed rod (12) fixedly connected to the top of the lifting frame (11), a lifting plate (14) is fixedly installed on the top of the fixed rod (12), and a plurality of demoulding rods (15) are distributed on the top of the lifting plate (14), and the demoulding rods (15) penetrate to the bottom end of the inner wall of the lower mold (9), and the top of the demoulding rod (15) is flush with the bottom end of the inner wall of the lower mold (9).

5. A brake disc casting core production mold according to claim 4, characterized in that: A spring (10) is connected between the bottom end of the mounting frame (13) and the top of the lifting frame (11), and the spring (10) in a compressed state is used to drive the sliding mechanism to reset downward.

6. The brake disc casting core production mold according to claim 1, characterized in that: A sand-shooting tube (18) connected to a sand-shooting machine is fixedly installed on the top of the upper mold (8), the sand-shooting tube (18) is slidably connected to the upper fixed plate (2), and the sand-shooting tube (18) is communicated with the inner cavity of the upper mold (8).

7. The brake disc casting core production mold according to claim 5, characterized in that: A through slot (17) is provided at the center of the lower fixed plate (1), and the through slot (17) is used for allowing the lifting plate (14) to move upward.

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