Foundry sand grinding machine for casting

Abstract

The utility model discloses a foundry sand grinding machine for casting in the field of grinding machines, which comprises a foundry sand grinding machine main body, a discharging hopper is arranged in the middle of the lower surface of the foundry sand grinding machine main body, fixing cylinders are fixed in the middle of the surfaces of the sides, far away from each other, of fixing plates, and induced draft fans are arranged in the fixing cylinders. External thread cylinders are fixed to the surfaces of the ends, away from the fixing plate, of the fixing cylinders, dust removal filters are installed at the ends, away from the fixing cylinders, of the external thread cylinders, and in the using process, dust carried in discharged casting sand can be removed easily; according to the foundry sand dust filtering device, dust carried in the foundry sand subjected to grinding machining can be conveniently filtered, so that the dust is prevented from drifting away in the surrounding air, and the situation that the dust carried in the foundry sand subjected to grinding machining drifts away in the air and influences the health of workers and the surrounding environment is avoided.

Description

Technical Field

[0001] The utility model relates to the field of grinders, in particular to a foundry sand grinder for casting. Background Technique

[0002] Casting is a metal hot working process, that is, melting metal into a liquid meeting certain requirements and pouring it into a mold, and after cooling and solidifying, and finishing treatment, a casting process with a predetermined shape, size and performance is obtained. Foundry sand is the basic material used to manufacture molds in foundry production.

[0003] In the foundry industry, the quality of foundry sand has a crucial impact on the quality of castings. A foundry sand grinder is a device specifically used for grinding and processing foundry sand. The foundry sand grinder usually adopts a mechanical grinding method, and through the motor driving the grinding components to exert extrusion, friction and impact on the foundry sand, the particle size of the foundry sand becomes smaller and the shape becomes more regular, so as to meet specific particle size requirements and surface quality.

[0004] However, when the existing grinder is in use, it is not conducive to removing the dust carried in the discharged foundry sand. When discharging the foundry sand after grinding, the ground foundry sand will carry a large amount of dust, which is likely to cause the dust to disperse in the surrounding air. The dust carried in the ground foundry sand dispersed in the air is likely to affect the health of the staff and the surrounding environment.

[0005] Therefore, we propose a foundry sand grinder for casting. Content of the Utility Model

[0006] The purpose of the utility model is to provide a foundry sand grinder for casting to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution:

[0008] A foundry sand grinder for casting, including a foundry sand grinder main body. The middle part of the lower surface of the foundry sand grinder main body is provided with a discharge hopper. The four corners of the lower surface of the foundry sand grinder main body are all fixed with support legs. The tops between the opposite surfaces of the support legs at the same end are all fixedly connected together with a fixing plate. The middle parts of the surfaces of the fixing plates away from each other are all fixedly provided with fixing cylinders. The middle parts of the fixing plates are respectively provided with matching retaining holes corresponding to the inner ring surfaces of the fixing cylinders. Exhaust fans are installed in the fixing cylinders. The surfaces of the fixing cylinders away from the fixing plates are all fixedly provided with external thread cylinders. Dust removal filters are installed at the ends of the external thread cylinders away from the fixing cylinders.

[0009] As a further solution of the utility model: connecting cylinders are installed on the outer sides of the outer circumferential surfaces of the dust removal filters. The inner circumferential surfaces of the connecting cylinders are in a state of being fitted in a matching manner with the outer circumferential surfaces of the corresponding dust removal filters, and a plurality of bumps are fixedly arranged on the outer circumferential surfaces of the connecting cylinders at intervals in the circumferential direction.

[0010] By adopting the above technical solution: the setting of the bumps can prevent slipping on the outer circumferential surface of the connecting cylinder.

[0011] As a further solution of the utility model: internal thread cylinders are fixedly arranged on the surfaces of the connecting cylinders close to the external thread cylinders, and the internal thread cylinders are all located outside the corresponding external thread cylinders.

[0012] By adopting the above technical solution: the setting of the internal threads helps to install and limit the connecting cylinder.

[0013] As a further solution of the utility model: the outer sides of the external thread cylinders are in a matching state with the inner sides of the corresponding internal thread cylinders, and the outer sides of the external thread cylinders are threadedly connected with the inner sides of the corresponding internal thread cylinders.

[0014] By adopting the above technical solution: the setting of the external thread cylinder helps to limit the internal thread cylinder.

[0015] As a further solution of the utility model: the air outlet directions of the induced draft fans all face away from the fixed plate, and fixing rods are fixedly arranged in the middle of the peripheral surfaces of the induced draft fans. One ends of the fixing rods far away from the corresponding induced draft fans are fixedly connected with the corresponding positions on the inner circumferential surfaces of the corresponding fixed cylinders.

[0016] By adopting the above technical solution: the setting of the fixing rods can fix and limit the induced draft fans, facilitating the stable use of the induced draft fans.

[0017] As a further solution of the utility model: the retaining holes all penetrate through the two side surfaces in the middle of the corresponding fixed plates, and porous baffles are fixedly arranged on one sides of the fixed plates close to the discharge hoppers within the retaining holes.

[0018] By adopting the above technical solution: the setting of the porous baffles can block and protect the inside of the retaining holes on the fixed plates.

[0019] As a further solution of the utility model: the support legs are all in a vertical state, and the inside of the discharge hopper is in a communicating state with the inside of the casting sand grinding machine main body.

[0020] By adopting the above technical solution: the setting of the support legs can support and limit the casting sand grinding machine main body.

[0021] As a further solution of the present utility model: a feed hopper is installed in the middle of the upper surface of the main body of the foundry sand grinding machine, and the inside of the feed hopper is in a communicating state with the inside of the main body of the foundry sand grinding machine.

[0022] By adopting the above technical solution: the setting of the main body of the foundry sand grinding machine can fix and limit the feed hopper.

[0023] Compared with the prior art, the beneficial effects of the present utility model are:

[0024] In the present utility model, the induced draft fan can extract the air carrying dust, and the dust removal filter can filter the dust carried in the air. When in use, it helps to remove the dust carried in the discharged foundry sand. When discharging the foundry sand after grinding, it can conveniently filter the dust carried in the ground foundry sand to prevent the dust from floating in the surrounding air and avoid the influence of the dust carried in the ground foundry sand on the health of the staff and the surrounding environment.

[0025] 2. In the present utility model, by rotating the connecting cylinder through the convex block, when the connecting cylinder rotates, it can drive the internal thread cylinder to rotate. When the internal thread cylinder rotates, it will move horizontally along the externally threaded cylinder connected by the phase thread, so as to facilitate the removal of the externally threaded cylinder, and disassemble and remove the connecting cylinder and the dust removal filter, which helps to replace the connecting cylinder and the dust removal filter. Thread the internal thread cylinder on the connecting cylinder and the dust removal filter to be replaced onto the externally threaded cylinder, so as to facilitate the installation of the replaced dust removal filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the present utility model;

[0027] Figure 2 is a structural schematic diagram of the fixing cylinder of the present utility model;

[0028] Figure 3 is a structural schematic diagram of the connecting cylinder of the present utility model;

[0029] Figure 4 is a structural schematic diagram of the fixing plate of the present utility model.

[0030] In the figure: 1. Main body of the foundry sand grinding machine; 2. Feed hopper; 3. Discharge hopper; 4. Support leg; 5. Fixing plate; 6. Retention hole; 7. Porous baffle; 8. Fixing cylinder; 9. Fixing rod; 10. Induced draft fan; 11. Externally threaded cylinder; 12. Internal thread cylinder; 13. Connecting cylinder; 14. Dust removal filter; 15. Convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1 to 4 , in the embodiment of the present invention, a casting sand grinding machine for casting includes a casting sand grinding machine main body 1. A discharge hopper 3 is installed in the middle of the lower surface of the casting sand grinding machine main body 1. Support legs 4 are fixed at the four corners of the lower surface of the casting sand grinding machine main body 1. Fixing plates 5 are commonly fixed between the tops of the opposite surfaces of the support legs 4 at the same end. Fixing cylinders 8 are fixed in the middle of the surfaces of the fixing plates 5 away from each other. Matching retention holes 6 are correspondingly formed in the middle of the fixing plates 5 on the inner ring surfaces of the fixing cylinders 8. Exhaust fans 10 are installed in the fixing cylinders 8. Outer threaded cylinders 11 are fixed on the surfaces of the fixing cylinders 8 away from the fixing plates 5. Dust removal filters 14 are installed at the ends of the outer threaded cylinders 11 away from the fixing cylinders 8. The exhaust fans 10 can extract the air carrying dust, and the dust removal filters 14 can filter the dust carried in the air. When in use, it helps to remove the dust carried in the discharged casting sand. When discharging the casting sand after the grinding process is completed, it can conveniently filter the dust carried in the ground casting sand to prevent the dust from floating in the surrounding air and avoid the influence of the dust carried in the ground casting sand on the health of the staff and the surrounding environment.

[0033] Among them, connection cylinders 13 are installed on the outer sides of the outer ring surfaces of the dust removal filters 14. The inner ring surfaces of the connection cylinders 13 are in a matching and fitting state with the outer ring surfaces of the corresponding dust removal filters 14. A plurality of convex blocks 15 are circumferentially and spacedly fixed on the outer ring surfaces of the connection cylinders 13. The convex blocks 15 can provide anti-slip function for the outer ring surfaces of the connection cylinders 13. Inner threaded cylinders 12 are fixed on the surfaces of the connection cylinders 13 close to the outer threaded cylinders 11. The inner threaded cylinders 12 are all located outside the corresponding outer threaded cylinders 11. The internal threads help to install and limit the connection cylinders 13. The outer sides of the outer threaded cylinders 11 are in a matching state with the inner sides of the corresponding inner threaded cylinders 12, and the outer sides of the outer threaded cylinders 11 are threadedly connected with the inner sides of the corresponding inner threaded cylinders 12. The outer threaded cylinders 11 help to limit the inner threaded cylinders 12.

[0034] The air outlet directions of the induced draft fans 10 all face away from the fixed plate 5. Fixing rods 9 are fixedly installed in the middle of the peripheral surfaces of the induced draft fans 10. One ends of the fixing rods 9 away from the corresponding induced draft fans 10 are fixedly connected to the corresponding positions on the inner ring surfaces of the corresponding fixed cylinders 8. The fixing rods 9 can fix and limit the induced draft fans 10, facilitating the stable use of the induced draft fans 10. The retaining holes 6 penetrate through the two side surfaces in the middle of the corresponding fixed plates 5. Porous baffles 7 are fixedly installed on one side of the fixed plates 5 close to the discharge hopper 3 within the retaining holes 6. The porous baffles 7 can block and protect the inside of the retaining holes 6 on the fixed plates 5.

[0035] The support legs 4 are all in a vertical state. The inside of the discharge hopper 3 is in a communicating state with the inside of the casting sand grinding machine main body 1. The support legs 4 can support and limit the casting sand grinding machine main body 1. The middle of the upper surface of the casting sand grinding machine main body 1 is provided with a feed hopper 2. The inside of the feed hopper 2 is in a communicating state with the inside of the casting sand grinding machine main body 1. The casting sand grinding machine main body 1 can fix and limit the feed hopper 2.

[0036] The working principle of the present utility model is as follows: During use, the support legs 4 are stably placed at the positions where they need to be used, facilitating the stable use of the support legs 4. The support legs 4 can support and limit the casting sand grinding machine main body 1 and various components assembled on the casting sand grinding machine main body 1, contributing to the stable use of the casting sand grinding machine main body 1 and various components assembled on the casting sand grinding machine main body 1. The support legs 4 can support and limit the fixed plate 5 and various components assembled on the fixed plate 5, facilitating the stable use of the fixed plate 5 and various components assembled on the fixed plate 5.

[0037] Pour the casting sand that needs to be ground externally into the feed hopper 2. The casting sand that needs to be ground in the feed hopper 2 will enter the casting sand grinding machine main body 1. Further, the casting sand grinding machine main body 1 is opened. In the opened state of the casting sand grinding machine main body 1, the casting sand grinding machine main body 1 can grind the casting sand. When the casting sand grinding machine main body 1 grinds the casting sand, dust will be generated. The casting sand after being ground by the casting sand grinding machine main body 1 will fall into the discharge hopper 3 with dust. Further, the external equipment for collecting the casting sand is correspondingly placed below the discharge hopper 3. The casting sand with dust in the discharge hopper 3 will fall into the external equipment for collecting the casting sand to complete the collection of the casting sand.

[0038] When feeding the foundry sand, the dust carried in the foundry sand will float into the air. Further, turn on the air extractor 10 on the fixed rod 9. The fixed cylinder 8 can fix and limit the air extractor 10 through the fixed rod 9, which helps to stably use the air extractor 10. When the air extractor 10 is turned on, the air extractor 10 can extract the air carrying dust through the fixed cylinder 8, the retention holes 6 on the fixing plate 5 and the porous baffle 7. The porous baffle 7 can block and protect the retention holes 6 on the fixing plate 5. The air extractor 10 can form an air flow with the air carrying dust extracted. The air flow carrying dust extracted by the air extractor 10 will be blown to the dust removal filter 14 through the porous baffle 7, the retention holes 6 on the fixing plate 5, the fixed cylinder 8 and the external thread cylinder 11, so that the air carrying dust is discharged through the dust removal filter 14. The dust removal filter 14 can filter the dust carried in the air, making the discharged air meet the emission standards, so as to remove the dust floating when the foundry sand falls.

[0039] When the dust removal filter 14 needs to be disassembled and replaced, rotate the connecting cylinder 13 through the convex block 15. When the connecting cylinder 13 rotates, it can drive the internal thread cylinder 12 to rotate. When the internal thread cylinder 12 rotates, it will move horizontally along the externally threaded cylinder 11 connected by threads, so as to remove the externally threaded cylinder 11. By removing the externally threaded cylinder 11, the connecting cylinder 13 and the dust removal filter 14 can be disassembled and removed, which helps to replace the connecting cylinder 13 and the dust removal filter 14. Further, the internal thread cylinder 12 on the connecting cylinder 13 and the dust removal filter 14 to be replaced is threaded on the externally threaded cylinder 11, so as to facilitate the installation of the replaced dust removal filter 14 and help to use the dust removal filter 14.

[0040] During the use process, it helps to remove the dust carried in the discharged foundry sand. When discharging the foundry sand after grinding, it can conveniently filter the dust carried in the foundry sand after grinding, so as to prevent the dust from floating in the surrounding air and avoid the influence of the dust carried in the foundry sand after grinding on the health of the staff and the surrounding environment.

[0041] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A foundry sand grinding machine for foundry, comprising a foundry sand grinding machine body (1), characterized in that: A discharge hopper (3) is installed in the middle of the lower surface of the foundry sand grinding machine body (1), support legs (4) are fixed at the four corners of the lower surface of the foundry sand grinding machine body (1), and a fixing plate (5) is fixed between the tops of the opposite surfaces of the support legs (4) at the same end, and a fixing cylinder (8) is fixed in the middle of the surface of the fixed plate (5) away from the side, and a matching retention hole (6) is opened in the middle of the fixing plate (5) corresponding to the inner ring surface of the fixing cylinder (8), and an induced draft fan (10) is installed in the fixing cylinder (8), and an external threaded cylinder (11) is fixed to the surface of the end of the fixing cylinder (8) away from the fixing plate (5), and a dust removal filter (14) is installed at the end of the external threaded cylinder (11) away from the fixing cylinder (8).

2. A foundry sand grinding machine for casting according to claim 1, characterized in that: A connecting tube (13) is installed on the outer side of the outer ring surface of the dust removal filter (14), the inner ring surface of the connecting tube (13) is in a matching and fitting state with the outer ring surface of the corresponding dust removal filter (14), and a plurality of protrusions (15) are fixed on the outer ring surface of the connecting tube (13) at intervals along the circumferential direction.

3. A foundry sand grinding machine for casting according to claim 2, characterized in that: An internal threaded tube (12) is fixed to one end surface of the connecting tube (13) close to the external threaded tube (11), and the internal threaded tube (12) is located outside the corresponding external threaded tube (11).

4. A foundry sand grinding machine for casting according to claim 3, characterized in that: The outer sides of the externally threaded barrels (11) are in a matching state with the inner sides of the corresponding internally threaded barrels (12), and the outer sides of the externally threaded barrels (11) are threadedly connected with the inner sides of the corresponding internally threaded barrels (12).

5. A foundry sand grinding machine for casting according to claim 4, characterized in that: The air outlet directions of the induced draft fans (10) are all in a direction away from the fixed plate (5), and fixed rods (9) are fixed in the middle of the four sides of the induced draft fans (10), and the ends of the fixed rods (9) away from the corresponding induced draft fans (10) are fixedly connected to corresponding positions on the inner annular surface of the corresponding fixed cylinder (8).

6. A foundry sand grinding machine for casting according to claim 5, characterized in that: The retention holes (6) penetrate through both side surfaces of the middle of the corresponding fixed plate (5), and a matching porous baffle plate (7) is fixed on one side of the fixed plate (5) located inside the retention holes (6) and close to the discharge hopper (3).

7. A foundry sand grinding machine for casting according to claim 6, characterized in that: The supporting legs (4) are all in a vertical state, and the inner side of the discharge hopper (3) is in communication with the inside of the foundry sand grinding machine body (1).

8. A foundry sand grinding machine for casting according to claim 7, characterized in that: A feed hopper (2) is installed in the middle of the upper surface of the foundry sand grinding machine body (1), and the inner side of the feed hopper (2) is in communication with the inside of the foundry sand grinding machine body (1).

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