Sand casting clay sand recycling device

Abstract

The utility model relates to clay sand processing technical field discloses a sand casting clay sand regenerating unit, including support board, the rear side top fixed connection of support board has the conveying cylinder, the rear side top fixed connection of conveying cylinder has the rubbing crusher, the top left and right sides inner wall of rubbing crusher all are fixedly connected with the material guide plate, the left side inner wall rotationally connected with rubbing roller no.

Description

Technical Field

[0001] This utility model relates to the field of clay sand processing technology, and in particular to a clay sand regeneration device for sand casting. Background Technology

[0002] Sand casting, a traditional and widely used casting process, plays a crucial role in numerous fields such as machinery manufacturing, automotive, and aerospace. In sand casting, clay sand is used extensively due to its good plasticity, binding properties, and relatively low cost. For example, clay sand is often the preferred molding material in the production of cast iron parts such as forklift wheel hubs and brake hubs. However, with the continuous development of the casting industry and the sustained expansion of production scale, the consumption of clay sand is extremely large. This not only puts pressure on raw material costs but also poses a serious challenge to the sustainable use of resources and environmental protection.

[0003] Existing clay sand recycling devices for sand casting have many problems that need to be solved. Among them, incomplete crushing often occurs in the sand crushing process, resulting in some sand particles not meeting the requirements of subsequent processes, which affects the overall quality of recycled sand. Moreover, blockages are prone to occur during the discharge process, which hinders the production process and reduces work efficiency. In addition, there is the problem of uneven mixing in the mixing stage, which prevents the various materials in the recycling device from being fully mixed, thus affecting the performance of the recycled clay sand and hindering its effective recycling in sand casting. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a clay sand regeneration device for sand casting, which solves the problems of incomplete sand crushing, easy clogging of discharge, and uneven mixing in existing clay sand regeneration devices for sand casting.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A clay sand recycling device for sand casting includes a support plate. A conveying cylinder is fixedly connected to the rear top of the support plate. A crushing box is fixedly connected to the rear top of the conveying cylinder. Guide plates are fixedly connected to the inner walls of the left and right sides of the top of the crushing box. A crushing roller is rotatably connected to the left inner wall of the crushing box, and a crushing roller is rotatably connected to the right inner wall of the crushing box. A first motor is installed on the rear outer wall of the crushing box. The drive end of the first motor passes through the rear inner wall of the crushing box and is fixedly connected to the rear end of the crushing roller. An anti-clogging component is provided on the bottom inner wall of the crushing box. A stirring tank is fixedly connected to the front top of the support plate. A tank cover is installed on the top of the stirring tank. A stirring component is provided on the inner wall of the stirring tank. A toothed ring is fixedly connected to the top inner wall of the stirring tank. A valve is installed on the bottom outer wall of the stirring tank.

[0007] Furthermore, a gear is fixedly connected to the front end of both the first crushing roller and the second crushing roller, and the outer walls of the two gears are meshed together.

[0008] Furthermore, the anti-clogging component includes a rotating rod rotatably connected to the inner wall of the bottom end of the crushing box, and multiple cams are fixedly connected to the outer wall of the rotating rod. The rotating rod is connected to the crushing roller through a transmission component.

[0009] Furthermore, the transmission assembly includes a sprocket fixedly connected to the rear end of the rotating rod and the rear end of the crushing roller, and the two sprockets are connected by a chain.

[0010] Furthermore, a second motor is installed on the rear outer wall of the conveying cylinder, and an auger is fixedly connected to the drive end of the second motor. Several filter holes are opened on the bottom inner wall of the conveying cylinder, and the front end of the conveying cylinder is connected to the rear inner wall of the mixing tank.

[0011] Furthermore, the stirring assembly includes a disc rotatably connected to the inner wall of the top of the stirring tank, with rotating rods rotatably connected to the inner walls of both the left and right sides of the disc, and several stirring plates fixedly connected to the outer walls of the rotating rods.

[0012] Furthermore, a second gear is fixedly connected to the top of each rotating rod, and the outer wall of the second gear meshes with the inner side of the gear ring.

[0013] Furthermore, a third motor is installed at the bottom of the bucket lid, and a rotating shaft is fixedly connected to the drive end of the third motor. An auger is fixedly connected to the outer wall of the rotating shaft, and the outer wall of the rotating shaft is fixedly connected to the inner wall of the disc.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the first motor drives the first crushing roller, which rotates in coordination with the second crushing roller via gear linkage. With the help of the guide plate, the material is fed precisely, achieving efficient crushing of sand and avoiding incomplete crushing caused by single crushing. The second crushing roller drives the sprocket, chain linkage rod and cam to rotate, stirring the sand at the bottom of the crushing box, breaking up the accumulation and preventing the discharge channel from being blocked. The second motor drives the first auger to feed the sand, and the linkage filter holes separate impurities, improving the purity of the sand. The linkage of various components ensures the quality of sand regeneration and the stability of the conveying and crushing operation.

[0016] 2. In this utility model, the rotating shaft is driven by a third motor to rotate, which in turn drives the disc to revolve and the auger to rotate, thereby providing power to the mixing components and preventing sand from accumulating at the bottom of the bucket; the disc drives the rotating rod to revolve, and the meshing of the gear ring and gear forces the rotating rod to rotate, which drives the mixing plate to move in multiple dimensions, so that the sand does not accumulate, breaks up clumps, eliminates mixing dead corners, and improves the uniformity of mixing. Attached Figure Description

[0017] Figure 1 This is a perspective view of a clay sand regeneration device for sand casting proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the crushing box structure of a clay sand regeneration device for sand casting proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the rotating rod structure of a clay sand regeneration device for sand casting proposed in this utility model;

[0020] Figure 4 This is a cross-sectional view of the conveyor cylinder of a clay sand regeneration device for sand casting proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the rotating rod structure of a clay sand regeneration device for sand casting proposed in this utility model.

[0022] Legend:

[0023] 1. Support plate; 2. Conveying cylinder; 3. Crushing box; 4. Crushing roller one; 5. Crushing roller two; 6. First motor; 7. Gear one; 8. Rotating rod; 9. Cam; 10. Sprocket; 11. Guide plate; 12. Second motor; 13. Screwdriver one; 14. Filter hole; 15. Mixing tank; 16. Tank lid; 17. Third motor; 18. Rotating shaft; 19. Screwdriver two; 20. Disc; 21. Rotating rod; 22. Mixing plate; 23. Gear ring; 24. Gear two; 25. Valve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-3This utility model provides an embodiment of a clay sand regeneration device for sand casting, comprising a support plate 1, a conveying cylinder 2 fixedly connected to the rear top end of the support plate 1, a crushing box 3 fixedly connected to the rear top end of the conveying cylinder 2, guide plates 11 fixedly connected to the inner walls of the left and right sides of the top of the crushing box 3, a crushing roller 4 rotatably connected to the left inner wall of the crushing box 3, a crushing roller 5 rotatably connected to the right inner wall of the crushing box 3, and a first motor 6 installed on the rear outer wall of the crushing box 3, the drive end of the first motor 6 being fixedly connected through the rear inner wall of the crushing box 3. At the rear end of the first crushing roller 4, an anti-clogging component is provided on the inner wall of the bottom end of the crushing box 3. Gears 7 are fixedly connected to the front ends of both the first crushing roller 4 and the second crushing roller 5. The outer walls of the two gears 7 mesh with each other. The anti-clogging component includes a rotating rod 8 rotatably connected to the inner wall of the bottom end of the crushing box 3. Multiple cams 9 are fixedly connected to the outer wall of the rotating rod 8. The rotating rod 8 is connected to the second crushing roller 5 via a transmission component. The transmission component includes sprockets 10 fixedly connected to the rear end of the rotating rod 8 and the rear end of the second crushing roller 5. The two sprockets 10 are connected by a chain. (Refer to...) Figure 4 A second motor 12 is installed on the rear outer wall of the conveying cylinder 2. The drive end of the second motor 12 is fixedly connected to an auger 13. Several filter holes 14 are opened on the bottom inner wall of the conveying cylinder 2. The front end of the conveying cylinder 2 is connected to the rear inner wall of the mixing tank 15.

[0026] Specifically, support plate 1 provides stable support for conveyor cylinder 2, preventing it from shaking during sand conveying and ensuring stable conveying operations. Crushing box 3 provides a crushing carrier for the sand. Crushing box 3 and conveyor cylinder 2 form a sand flow channel. Guide plate 11 guides the sand to be crushed to fall precisely into the crushing area between crushing roller 4 and crushing roller 5, reducing sand waste and improving the efficiency and accuracy of sand entering the crushing stage. Crushing box 3 provides rotational support for crushing roller 4, enabling it to rotate stably around its own axis. The two crushing rollers 5 apply extrusion and shearing forces to the sand, achieving the crushing of blocky and large-particle sand, laying the foundation for the sand to meet the particle size standard in regenerated sand. The crushing box 3 provides a fixed mounting carrier for the first motor 6, so that the drive end of the first motor 6 can be precisely connected to the crushing roller 4, ensuring smooth power transmission. Through the meshing transmission of the gear 7, the crushing roller 4 drives the crushing roller 5 to rotate synchronously in the opposite direction, ensuring that the two crushing rollers form a coordinated crushing action, avoiding the sand from not being effectively crushed due to the rotation of a single crushing roller, and ensuring uniform crushing effect.

[0027] The rotation of the second crushing roller 5 drives the sprocket 10 on the second crushing roller 5 to rotate, thereby transmitting the power of the chain to the rotating rod 8, causing the rotating rod 8 to rotate. The crushing box 3 provides rotational support for the rotating rod 8, allowing the rotating rod 8 to rotate stably at the bottom of the crushing box 3, which in turn drives the cam 9 to rotate. When the rotating rod 8 rotates, it drives the cam 9 to rotate synchronously. The rotating cam 9 can agitate and impact the sand at the bottom of the crushing box 3, breaking the accumulation of sand and ensuring that the crushed sand can be smoothly discharged from the bottom of the crushing box 3, preventing blockage of the discharge channel and ensuring the efficiency of sand flow.

[0028] The conveying cylinder 2 provides a fixed installation position for the second motor 12, which transmits power to the auger 13, driving the auger 13 to rotate inside the conveying cylinder 2. Through the spiral pushing action of the auger blades, the sand is conveyed to the interior of the mixing tank 15 for further processing. The filter holes 14 filter the sand conveyed in the conveying cylinder 2, allowing fine impurities such as dust and tiny particles in the sand to be separated and discharged from the conveying cylinder 2 through the filter holes 14, improving the purity of the sand and ensuring the quality of sand recycling for subsequent sand casting. This reduces the impact of impurities on the quality of casting products, can efficiently crush the sand and prevent accumulation and blockage, and can also filter impurities to improve the purity of the sand, ultimately ensuring the quality of sand recycling and the stable and efficient conveying and crushing operation.

[0029] Reference Figure 1 , Figure 2 and Figure 5 A mixing tank 15 is fixedly connected to the top front side of the support plate 1. A tank cover 16 is installed on the top of the mixing tank 15. A mixing assembly is provided on the inner wall of the mixing tank 15. A toothed ring 23 is fixedly connected to the inner wall of the top of the mixing tank 15. A valve 25 is installed on the outer wall of the bottom end of the mixing tank 15. The mixing assembly includes a disc 20 rotatably connected to the inner wall of the top of the mixing tank 15. Rotating rods 21 are rotatably connected to the inner walls of the left and right sides of the disc 20. Several mixing plates 22 are fixedly connected to the outer wall of the rotating rods 21. Gears 24 are fixedly connected to the top of the rotating rods 21. The outer wall of the gears 24 meshes with the inner side of the toothed ring 23. A third motor 17 is installed at the bottom end of the tank cover 16. A rotating shaft 18 is fixedly connected to the drive end of the third motor 17. An auger 19 is fixedly connected to the outer wall of the rotating shaft 18. The outer wall of the rotating shaft 18 is fixedly connected to the inner wall of the disc 20.

[0030] Specifically, the support plate 1 provides stable bottom support for the mixing tank 15, and the lid 16 seals the top opening of the mixing tank 15 to prevent sand from splashing and causing waste or dust pollution during mixing. It also provides a fixed mounting carrier for the third motor 17, providing a transmission basis for the compound mixing action and improving the uniformity of sand mixing. The valve 25 controls the opening and closing of the discharge port at the bottom of the mixing tank 15. Opening the valve 25 after mixing allows the sand to be discharged smoothly, while closing the valve 25 during mixing prevents sand leakage. The mixing tank 15 provides rotational support for the disc 20, enabling the disc 20 to revolve stably around the central axis of the mixing tank 15. It also provides a mounting carrier for the rotating rod 21, driving the rotating rod 21 to revolve synchronously, providing a power transmission basis for the circumferential mixing of the sand. The rotating rod 21 can revolve under the drive of the disc 20 while... The rotating rod 21 rotates independently around its own axis, thereby driving the mixing plate 22 to achieve multi-dimensional mixing, avoiding dead zones in sand mixing and improving the mixing effect. The mixing plate 22 directly contacts the sand. When the rotating rod 21 rotates and revolves, it drives the mixing plate 22 to move synchronously. The gear 24 and the rotating rod 21 form a linkage structure. When the gear 24 rotates, it directly drives the rotating rod 21 to rotate synchronously, providing a power transmission path for the rotation of the rotating rod 21 and ensuring that the rotation and revolution of the rotating rod 21 are coordinated. Taking advantage of the fixed characteristic of the gear ring 23, when the disc 20 drives the rotating rod 21 and the gear 24 to revolve around the center of the gear ring 23, the meshing relationship between the gear 24 and the gear ring 23 forces the gear 24 to rotate, which in turn drives the rotating rod 21 to rotate. This applies pushing and turning forces to the sand, breaking up sand clumps and making the sand mixture more uniform.

[0031] The electrical energy generated by the third motor 17 is converted into mechanical energy and directly transmitted to the rotating shaft 18 through the drive end. The rotating shaft 18 rotates around its own axis, providing a power source for the mixing components such as the disc 20, rotating rod 21, and auger 2 19, ensuring the start-up and continuous operation of the mixing process. When the rotating shaft 18 rotates, it drives the auger 2 19 to rotate synchronously. The auger 2 19 can push the sand in the mixing tank 15 to circulate up and down, preventing the sand from accumulating at the bottom of the mixing tank 15. It also assists the mixing plate 22 in achieving all-round mixing of the sand, further improving the uniformity of mixing. The rotational power of the rotating shaft 18 is transmitted to the disc 20, driving the disc 20 to revolve synchronously around the central axis of the rotating shaft 18. This, in turn, drives the rotating rod 21, mixing plate 22, and other components on the disc 20 to revolve, providing the core power for the revolution of the mixing components and ensuring the normal operation of the composite mixing structure. Through the revolution of the composite mixing components, its own rotation, and the anti-accumulation function of the auger 2 19, the uniformity of sand mixing is ultimately improved.

[0032] Working principle: The recycled clay sand enters the crushing box 3. The guide plate 11 at the top of the crushing box 3 guides the sand to fall precisely between the first crushing roller 4 and the second crushing roller 5. The first motor 6 is started, and its drive end drives the first crushing roller 4 to rotate. Because the first crushing roller 4 and the front gear 7 of the second crushing roller 5 mesh, the second crushing roller 5 rotates synchronously in opposite directions. The two rollers apply extrusion and shearing forces to the sand, breaking up blocky and large-particle sand. The rotation of the second crushing roller 5 drives its rear sprocket 10, which drives the rotating rod 8 to rotate through chain transmission. The cam 9 on the outer wall of the rotating rod 8 stirs the sand at the bottom of the crushing box 3 to prevent blockage. The broken sand falls into the conveying cylinder 2. The second motor 12 is started, and its drive end drives the auger 13 inside the conveying cylinder 2. The auger 13 rotates, pushing the sand material through the bottom filter hole 14 of the conveying cylinder 2. The purified sand material is sent to the mixing tank 15. The third motor 17 is started, and its drive end drives the rotating shaft 18 to rotate. The rotating shaft 18 drives the disc 20 to revolve around the center of the mixing tank 15, while simultaneously driving the auger 29 to rotate, pushing the sand material up and down to prevent accumulation. When the disc 20 revolves, the gear 24 at the top of the rotating rod 21 meshes with the toothed ring 23 on the inner wall of the mixing tank 15, forcing the rotating rod 21 to rotate. The mixing plate 22 on the outer wall of the rotating rod 21 pushes and turns the sand material to achieve uniform mixing. After mixing is completed, the valve 25 at the bottom of the mixing tank 15 is opened to discharge qualified recycled sand.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clay sand regeneration device for sand casting, characterized in that, Includes a support plate (1), a conveying cylinder (2) fixedly connected to the rear top of the support plate (1), a crushing box (3) fixedly connected to the rear top of the conveying cylinder (2), guide plates (11) fixedly connected to the inner walls of the left and right sides of the top of the crushing box (3), a crushing roller (4) rotatably connected to the left inner wall of the crushing box (3), a crushing roller (5) rotatably connected to the right inner wall of the crushing box (3), and a first motor (6) installed on the rear outer wall of the crushing box (3). The drive end of 6) passes through the rear inner wall of the crushing box (3) and is fixedly connected to the rear end of the crushing roller (4). The bottom inner wall of the crushing box (3) is provided with an anti-blocking component. The front top of the support plate (1) is fixedly connected with a stirring tank (15). The top of the stirring tank (15) is equipped with a lid (16). The inner wall of the stirring tank (15) is provided with a stirring component. The top inner wall of the stirring tank (15) is fixedly connected with a toothed ring (23). The bottom outer wall of the stirring tank (15) is equipped with a valve (25).

2. The sand casting clay sand regeneration device according to claim 1, characterized in that: The front ends of both the first crushing roller (4) and the second crushing roller (5) are fixedly connected with gears (7), and the outer walls of the two gears (7) are meshed together.

3. The sand casting clay sand regeneration device according to claim 1, characterized in that: The anti-clogging component includes a rotating rod (8) rotatably connected to the inner wall of the bottom end of the crushing box (3). Multiple cams (9) are fixedly connected to the outer wall of the rotating rod (8). The rotating rod (8) is connected to the crushing roller (5) through a transmission component.

4. The sand casting clay sand regeneration device according to claim 3, characterized in that: The transmission assembly includes a sprocket (10) fixedly connected to the rear end of the rotating rod (8) and the rear end of the crushing roller (5), and the two sprockets (10) are connected by a chain.

5. The sand casting clay sand regeneration device according to claim 1, characterized in that: A second motor (12) is installed on the rear outer wall of the conveying cylinder (2). The drive end of the second motor (12) is fixedly connected to an auger (13). Several filter holes (14) are opened on the bottom inner wall of the conveying cylinder (2). The front end of the conveying cylinder (2) is connected to the rear inner wall of the mixing tank (15).

6. The sand casting clay sand regeneration device according to claim 1, characterized in that: The stirring assembly includes a disc (20) rotatably connected to the inner wall of the top of the stirring tank (15). Rotating rods (21) are rotatably connected to the inner walls of the left and right sides of the disc (20). Several stirring plates (22) are fixedly connected to the outer wall of the rotating rods (21).

7. The sand casting clay sand regeneration device according to claim 6, characterized in that: The top of each rotating rod (21) is fixedly connected to a gear two (24), and the outer wall of the gear two (24) meshes with the inner side of the gear ring (23).

8. The sand casting clay sand regeneration device according to claim 1, characterized in that: A third motor (17) is installed at the bottom of the bucket lid (16). The drive end of the third motor (17) is fixedly connected to a rotating shaft (18). An auger (19) is fixedly connected to the outer wall of the rotating shaft (18). The outer wall of the rotating shaft (18) is fixedly connected to the inner wall of the disc (20).

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