Shakeout machine for investment casting

Abstract

The shakeout machine for investment casting comprises a base, a frame body, a sieve plate and a grid plate, a collecting box is arranged at the bottom of the frame body, first vibration motors are arranged on the two sides of the frame body, the frame body is elastically installed on the base through springs, the sieve plate is located at the lower end of the grid plate, and the first vibration motors are arranged on the first vibration motors. The lower end of the sieve plate is fixedly installed on the base through a supporting frame, the grid plate is installed in the frame body, the sieve plate is in coupling connection with vibration bodies used for impacting molding sand, one or more vibration bodies are arranged in each grid of the grid plate, and collision to the molding sand is enhanced by additionally arranging the vibration bodies. The problems that in the prior art, the shakeout efficiency is low, the material blocking problem is serious, and the equipment structure is complex are solved.

Description

Technical Field

[0001] This utility model relates to the field of investment casting equipment technology, and in particular to a sand removal machine for investment casting. Background Technology

[0002] In silica sol investment casting, the shakeout machine is an indispensable key piece of equipment, mainly used to separate the casting from the mold shell and remove residual molding sand. Traditional shakeout processes typically rely on mechanical vibration or impact force. A vibrating motor drives the equipment to break the mold shell, thereby separating the casting from the molding sand. In existing shakeout machines, the grid plate and sieve plate are integrated. During vibration, the grid plate shakes off the molding sand from the casting. The sand blocks fall into the grid and are then broken by vibration before falling from the sieve plate. However, some blocky molding sand does not collide frequently enough within the grid, resulting in low crushing efficiency. Often, larger pieces of molding sand cannot be broken in time within the grid, causing material blockage.

[0003] To address the aforementioned issues, some improvements have been proposed in existing technologies. For example, patent CN218836056U discloses a sand removal machine, including a base, a frame, a sieve plate, and a grid plate. A collection hopper is located at the bottom of the frame, and vibrating motors are installed on both sides of the collection hopper. The frame is movably mounted on the base via a set of springs. The sieve plate is fixed within the frame, and the grid plate is movably mounted within the frame via a set of springs, positioned above the sieve plate. Both the sieve plate and the grid plate in the sand removal machine are movable. The vibration of the grid plate dislodges the molding sand from the casting above. As the grid plate vibrates along with the sieve plate, the frequencies of the two plates differ, resulting in multi-directional collisions of the molding sand falling onto the sieve plate between the grids, thus improving the sand removal efficiency.

[0004] However, this existing technology only uses the difference in frequency between the two to collide the molding sand, which has limited effect. Larger pieces of molding sand may still remain stuck in the grid due to insufficient collision. Utility Model Content

[0005] Purpose of the invention: The purpose of this utility model is to provide a sand removal machine for investment casting, which strengthens the collision of molding sand by adding a vibrating body, thereby solving the problems of low sand removal efficiency, serious material blockage, and complex equipment structure in the prior art.

[0006] Technical solution:

[0007] A sand removal machine for investment casting includes a base, a frame, a sieve plate, and a grid plate. A collection box is provided at the bottom of the frame, and first vibration motors are provided on both sides of the frame. The frame is elastically mounted on the base by springs. The sieve plate is located at the lower end of the grid plate, and the lower end of the sieve plate is fixedly mounted on the base by a support frame. The grid plate is installed inside the frame, and the sieve plate is coupled with an impactor for impacting molding sand. Each grid of the grid plate is provided with one or more impactors.

[0008] Optionally, the vibrating body is fixedly mounted on the sieve plate.

[0009] Furthermore, the vibrating body has a cylindrical structure.

[0010] Optionally, the vibrating body is movably disposed at the upper end of the sieve plate, and the size of the vibrating body is larger than the gap between the sieve plate and the grid plate.

[0011] Furthermore, the upper end of the grid plate is provided with a blocking component to prevent the vibrating body from popping out of the grid. The blocking component has a groove or hole larger than the mesh of the screen plate for the molding sand to pass through.

[0012] Furthermore, the vibrating body has a spherical structure.

[0013] Furthermore, a second vibration motor is provided at the lower end of the sieve plate.

[0014] Optionally, the vibrating body includes two types: one fixedly mounted on the sieve plate and the other movably mounted on the upper end of the sieve plate.

[0015] Beneficial effects: By setting up vibrating bodies inside the grid, the collision frequency and force of the molding sand are significantly increased, effectively breaking up larger pieces of molding sand and avoiding material blockage problems. Attached Figure Description

[0016] Figure 1 This is a perspective view of the first embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the installation of the vibrating body according to the first embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation of the vibrating body according to the second embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the installation of the vibrating body according to the third embodiment of this utility model;

[0020] Reference numerals: 1. Base; 2. Frame; 3. Sieve plate; 4. Grid plate; 5. Collection box; 6. First vibrating motor; 7. Vibrating body; 8. Blocking component; 9. Spring. Detailed Implementation

[0021] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] like Figure 1 , 2As shown, in the first embodiment of this utility model, a sand removal machine for investment casting includes a base 1, a frame 2, a sieve plate 3, and a grid plate 4. A collection box 5 is provided at the bottom of the frame 2, and a first vibration motor 6 is provided on both sides of the frame 2. The frame 2 is elastically mounted on the base 1 by a spring 9. The sieve plate 3 is located at the lower end of the grid plate 4, and the lower end of the sieve plate 3 is fixedly mounted on the base 1 by a support frame. The grid plate 4 is installed inside the frame 2, and the sieve plate 3 is coupled with an impactor 7 for impacting molding sand. Each grid of the grid plate 4 is provided with one or more impactors 7.

[0024] In this embodiment, the vibrating body 7 is fixedly installed on the screen plate 3. When the sand crusher is working, the first vibrating motor 6 drives the frame 2 to vibrate, thereby causing the sand and the grid 4 to move relative to each other. During this process, the vibration of the grid plate 4 will cause the grid sidewall to collide with the molding sand, and at the same time, it will cause the molding sand to collide with the vibrating body 7 frequently, thereby effectively breaking up larger pieces of molding sand and avoiding material blockage.

[0025] In this embodiment, the vibrating body 7 is a cylindrical structure. This cylindrical structure allows the vibrating body 7 to generate a uniform impact force on the molding sand during vibration, thereby improving the crushing efficiency of the molding sand. Furthermore, the cylindrical structure of the vibrating body 7 is easy to manufacture and install, reducing the production and maintenance costs of the equipment.

[0026] Furthermore, a second vibration motor is provided at the lower end of the screen plate. The second vibration motor can further enhance the vibration effect of the screen plate 3, so that the molding sand can be more fully collided and crushed in the grid plate 4, thereby further improving the sand falling efficiency.

[0027] Example 2

[0028] like Figure 3 As shown, in the second embodiment of this utility model, the vibrating body 7 is movably disposed at the upper end of the screen plate 3. The size of the vibrating body 7 is larger than the gap between the screen plate 3 and the grid plate 4. This design allows the vibrating body 7 to move freely within the grid plate 4 during vibration, thereby generating multi-directional impact force on the molding sand and further improving the crushing effect of the molding sand.

[0029] Furthermore, the upper end of the grid plate 4 is provided with a blocking member 8 to prevent the vibrating body from popping out of the grid. The blocking member 8 has a groove or hole larger than the mesh of the screen plate. The blocking member 8 not only prevents the vibrating body 7 from popping out of the grid during vibration, but also ensures that the molding sand can pass smoothly through the grid plate 4, avoiding material blockage.

[0030] Furthermore, the vibrating body 7 has a spherical structure. The spherical structure of the vibrating body 7 can better adapt to the space within the grid plate 4 during movement, making it easier to move and enhancing the adaptability of the equipment.

[0031] Example 3

[0032] like Figure 4 As shown, in the third embodiment of this utility model, the vibrating body 7 includes two types: one fixedly mounted on the screen plate 3 and the other movably mounted on the upper end of the screen plate 3. This design combines the advantages of both fixed and movable vibrating bodies, enabling the fixed vibrating body to generate a stable impact force on the molding sand, while the movable vibrating body can generate multi-directional impact forces on the molding sand, thereby further improving the crushing effect of the molding sand. Furthermore, the fixed vibrating body 7 has a cylindrical structure, while the movable vibrating body 7 has a spherical structure. This combined design allows the vibrating body 7 to generate a more comprehensive and efficient impact force on the molding sand during vibration, significantly improving the sand removal efficiency.

[0033] This invention significantly improves the crushing efficiency and sand removal effect of molding sand by employing fixed and movable vibrating bodies 7 in different embodiments. The combination of the fixed cylindrical vibrating body 7 and the movable spherical vibrating body 7 can generate a more comprehensive and efficient impact force on the molding sand, avoiding material blockage and improving the working efficiency of the equipment. In addition, the inclusion of the blocking component 8 and the second vibration motor further enhances the performance and adaptability of the equipment, making it widely applicable and worthy of promotion.

[0034] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A sand removal machine for investment casting, comprising a base (1), a frame (2), a sieve plate (3), and a grid plate (4), wherein a collection box (5) is provided at the bottom of the frame (2), and first vibration motors (6) are provided on both sides of the frame (2), the frame (2) is elastically mounted on the base (1) by springs (9), and the sieve plate (3) is located at the lower end of the grid plate (4), characterized in that, The lower end of the sieve plate (3) is fixedly installed on the base (1) by a support frame. The grid plate (4) is installed inside the frame (2). The sieve plate (3) is coupled with a vibrating body (7) for impacting molding sand. Each grid of the grid plate (4) is provided with one or more vibrating bodies (7).

2. The sand removal machine for investment casting according to claim 1, characterized in that, The vibrating body (7) is fixedly mounted on the sieve plate (3).

3. A sand removal machine for investment casting according to claim 2, characterized in that, The vibrating body (7) is a columnar structure.

4. A sand removal machine for investment casting according to claim 1, characterized in that, The vibrating body (7) is movably disposed at the upper end of the sieve plate (3), and the size of the vibrating body (7) is larger than the gap between the sieve plate (3) and the grid plate (4).

5. A sand removal machine for investment casting according to claim 4, characterized in that, The upper end of the grid plate (4) is provided with a blocking member (8) to prevent the vibrating body from popping out of the grid. The blocking member (8) has a groove or hole larger than the mesh of the screen plate for the molding sand to pass through.

6. A sand removal machine for investment casting according to claim 4, characterized in that, The vibrating body (7) has a spherical structure.

7. A sand removal machine for investment casting according to claim 1, characterized in that, The vibrating body (7) includes two types: one fixedly mounted on the sieve plate (3) and the other movably mounted on the upper end of the sieve plate (3).

8. A sand removal machine for investment casting according to claim 1, characterized in that, A second vibration motor is provided at the lower end of the sieve plate (3).

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