A casting breaker sand cleaning device capable of automatically removing sticky sand

Abstract

The present application relates to the technical field of foundry sand cleaning of casting crusher, in particular to a foundry sand cleaning and crushing device capable of automatically removing sticky sand for casting crusher, which comprises a support, a shaking assembly, an adding assembly, a crushing assembly and a stirring assembly, the device is matched with an independent adding assembly, a cooling and wetting medium in a containing frame continuously sprays into the crushing frame through a conveying pipe and a spray head, the high-temperature clumped old sand synchronously contacts the spray medium when entering the crushing cavity, thereby rapidly reducing the sand temperature and softening the sand mass bonding layer, which can not only avoid direct abrasion of the crushing knife by the high-temperature sand, but also can scatter the sand bonding structure, greatly reduces the crushing resistance, solves the problem of material blockage caused by the adhesion of high-temperature sand to the cavity and the tool, and simultaneously improves the bonding performance of the recycled sand.

Description

Technical Field

[0001] This invention relates to the field of sand removal technology for foundry crushers, specifically to a sand removal and crushing device for foundry crushers that can automatically remove adhering sand. Background Technology

[0002] As is well known, in casting production, after the casting is poured, it needs to undergo a sand removal process, which is to separate the casting from the sand mold and remove the molding sand and core sand adhering to the surface of the casting. The old sand separated during the sand removal process often clumps together and needs to be crushed before it can be recycled and reused. At the same time, the old sand that has just been separated from the casting is at a high temperature (usually above 100°C). If it is reused directly without cooling, it will affect the bonding performance of the molding sand and the quality of the casting.

[0003] In the existing scheme, the molding sand enters the cooling process after crushing, which means that the crushing equipment needs to operate under high temperature conditions for a long time. The direct contact between the high temperature molding sand and the crushing roller, crushing teeth and other components accelerates the thermal fatigue and wear of the crushing components and shortens the service life of the equipment. At the same time, the heat generated by the high temperature molding sand during the crushing process accumulates in the crushing chamber, further deteriorating the working environment of the crushing equipment. Summary of the Invention

[0004] In order to overcome the problems of existing casting crusher sand cleaning and crushing devices that can automatically remove adhering sand, the present invention provides a casting crusher sand cleaning and crushing device that can automatically remove adhering sand.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a casting crusher sand cleaning and crushing device capable of automatically removing adhering sand, comprising: support; An oscillation assembly, which is mounted on the bracket; An adder component is installed on the bracket. The adder component includes a holding frame, which is fixedly disposed on the top of the bracket. One end of a delivery pipe is fixedly disposed on the side of the holding frame, and a nozzle is fixedly disposed on the other end of the delivery pipe. A crushing assembly, the crushing assembly being mounted on the side of the support; and A stirring assembly is mounted at the bottom of the grinding assembly.

[0006] Preferably, the crushing component is installed on the side of the support, the crushing component includes a crushing frame, the crushing frame is fixedly disposed on the top of the support, a conveying frame is fixedly disposed on the top of the crushing frame, the crushing frame is connected to the conveying pipe, an installation shaft is rotatably disposed inside the crushing frame, and a crushing blade is fixedly disposed on the installation shaft.

[0007] Furthermore, the stirring assembly includes a stirring frame, which is fixedly disposed at the bottom of the support and communicates with the crushing frame. A stirring shaft is rotatably disposed laterally inside the stirring frame, and a plurality of stirring rods are fixedly disposed on the stirring shaft. One end of the stirring shaft passes through the stirring frame. A discharge plate is rotatably disposed at the bottom of the stirring frame, and a limiting plate is slidably disposed on the side of the stirring frame. The limiting plate is slidably disposed with the discharge plate.

[0008] Furthermore, a second motor is fixedly installed on the side of the bracket, and a second pulley is fixedly installed on the side of both the second motor and the mounting shaft, with a second transmission belt connecting the second pulleys.

[0009] In a further embodiment, a third pulley is fixedly mounted on the side of the stirring shaft, and a third transmission belt is provided between the third pulley and the second pulley located on the motor.

[0010] Based on the aforementioned solution, a shield is fixedly installed on the mounting frame, and the shield covers the second motor.

[0011] Furthermore, based on the aforementioned scheme, a cleaning plate is rotatably provided on the side of the pulverizing frame, the cleaning plate is adapted to the nozzle, one end of a first spring is fixedly provided on the pulverizing frame, the other end of the first spring is fixedly provided to the cleaning plate, and a toggle rod is fixedly provided on the mounting shaft, the toggle rod is adapted to the cleaning plate.

[0012] Furthermore, based on the aforementioned solution, the oscillation component includes an oscillation disk, which is fixedly mounted on the top of the support by a second spring, and an oscillation motor is fixedly mounted on the bottom of the oscillation disk. Beneficial effects

[0013] This automatic sand-removing and sand-cleaning device for a foundry crusher is equipped with an independent additive component. The cooling and wetting medium in the holding frame is continuously sprayed into the crushing frame through the conveying pipe and nozzle. When the high-temperature clumps of old sand enter the crushing chamber, they simultaneously come into contact with the sprayed medium, which quickly reduces the temperature of the sand and softens the sand clumps. This not only avoids the high-temperature molding sand from directly abrading the crushing blades, but also breaks up the sand's adhesive structure, significantly reducing crushing resistance and solving the problem of material blockage and machine shutdown caused by high-temperature sand adhering to the chamber and blades. It also improves the adhesion performance of recycled sand. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the oscillation component of the present invention; Figure 3 This is a schematic diagram of the structure of the bracket of the present invention; Figure 4 This is a schematic diagram of the structure of the container frame of the present invention; Figure 5 This is a schematic diagram of the structure of the crushing frame of the present invention; Figure 6 This is a schematic diagram of the structure of the pulverizing component of the present invention; Figure 7 This is a schematic diagram of the structure of the stirring assembly of the present invention; Figure 8 This is a schematic diagram of the material discharge plate of the present invention.

[0015] In the diagram: 1. Support; 2. Adding component; 3. Container frame; 4. Conveying pipe; 5. Nozzle; 6. Crushing component; 7. Mixing component; 8. Crushing frame; 9. Conveying frame; 10. Mounting shaft; 11. Crushing blade; 12. Mixing frame; 13. Mixing shaft; 14. Mixing rod; 15. Second motor; 16. Second pulley; 17. Second transmission belt; 18. Third pulley; 19. Third transmission belt; 20. Shield; 21. Cleaning plate; 22. First spring; 23. Actuating rod; 24. Discharge plate; 25. Limiting plate; 26. Vibration component; 27. Vibration disc; 28. Second spring; 29. ​​Vibration motor. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The drive sources such as motors or electric motors involved in the present invention are all designed with corresponding operating procedures, which will not be described in detail here.

[0017] See Figures 1-8 An automatic sand-removing and sand-cleaning device for a foundry crusher includes a support 1, a vibration component 26 mounted on the support 1, an adding component 2 mounted on the support 1, a crushing component 6 mounted on the side of the support 1, and a stirring component 7 mounted on the bottom of the crushing component 6. The support 1 is used to support and fix the various components of the entire device and to provide a mounting base for each component. The vibration component 26 mounted on the support 1 is used to vibrate the casting to cause the molding sand and core sand on the surface of the casting to fall off and separate. The adding component 2 mounted on the support 1 is used to add cooling medium or cleaning medium into the crushing component 6. The crushing component 6 mounted on the side of the support 1 is used to crush the fallen agglomerated old sand. The stirring component 7 mounted on the bottom of the crushing component 6 is used to stir, cool and mix the crushed sand.

[0018] First, refer to Figure 6In this embodiment, the adding component 2 includes a holding frame 3, which is fixedly installed on the top of the support 1. One end of a conveying pipe 4 is fixedly installed on the side of the holding frame 3, and a nozzle 5 is fixedly installed on the other end of the conveying pipe 4. The holding frame 3 is fixed on the top of the support 1 to hold cooling medium or cleaning medium. The interior of the holding frame 3 is a cavity structure for storing medium. One end of the conveying pipe 4 is connected to the interior of the holding frame 3, and the other end is connected to the nozzle 5. The conveying pipe 4 is used to transport the medium in the holding frame 3 to the nozzle 5. The nozzle 5 is fixed at the end of the conveying pipe 4 to spray the medium into the crushing component 6. When it is necessary to add cooling medium or cleaning medium into the crushing component 6, the medium in the holding frame 3 flows to the nozzle 5 through the conveying pipe 4. The nozzle 5 sprays the medium into the crushing component 6 in an atomized or jetting manner to cool the high-temperature molding sand or clean the interior of the crushing component 6.

[0019] Then, refer to Figure 7 In this embodiment, the crushing component 6 is installed on the side of the support 1. The crushing component 6 includes a crushing frame 8, which is fixedly installed on the top of the support 1. A conveying frame 9 is fixedly installed on the top of the crushing frame 8. The crushing frame 8 is connected to the conveying pipe 4. An installation shaft 10 is rotatably installed inside the crushing frame 8. A crushing blade 11 is fixedly installed on the installation shaft 10. The crushing frame 8 is fixed on the top of the support 1 to provide working space for the crushing process. The conveying frame 9 is fixed on the top of the crushing frame 8 to receive the molding sand that falls off the vibrating component 26 and guide it into the crushing frame 8. The conveying frame 9 is connected to the interior of the crushing frame 8 so that the molding sand can enter the crushing frame 8 from the conveying frame 9. The crushing frame 8 is connected to the conveying pipe 4 so that the medium sprayed by the nozzle 5 can enter the interior of the crushing frame 8. The installation shaft 10 is rotatably installed inside the crushing frame 8 and can rotate around its own axis. The crushing blade 11 is fixed on the installation shaft 10 and rotates with the installation shaft 10. When the molding sand enters the crushing frame 8, the installation shaft 10 rotates, driving the crushing blade 11 to rotate. The crushing blade 11 cuts and crushes the agglomerated molding sand.

[0020] A cleaning plate 21 is rotatably mounted on the side of the pulverizing frame 8. The cleaning plate 21 is adapted to the nozzle 5. One end of a first spring 22 is fixedly mounted on the pulverizing frame 8, and the other end of the first spring 22 is fixedly mounted to the cleaning plate 21. A toggle rod 23 is fixedly mounted on the mounting shaft 10, and the toggle rod 23 is adapted to the cleaning plate 21. The cleaning plate 21 is rotatably mounted on the side of the pulverizing frame 8 and can rotate around the pulverizing frame 8. The position of the cleaning plate 21 corresponds to the position of the nozzle 5, and the surface of the cleaning plate 21 is opposite to the spray direction of the nozzle 5. When the nozzle 5 sprays the medium, the cleaning plate 21 can clean the spray area of ​​the nozzle 5. One end of the first spring 22 is fixed to the pulverizing frame 8, and the other end is fixed to the cleaning plate 21. The first spring 22 applies an elastic force to the cleaning plate 21, keeping the cleaning plate 21 in its initial position when no external force is applied. The actuating rod 23 is fixed on the mounting shaft 10 and rotates with the mounting shaft 10. The position of the actuating rod 23 corresponds to the position of the cleaning plate 21. When the mounting shaft 10 rotates, the actuating rod 23 rotates with the mounting shaft 10. During the rotation, the actuating rod 23 contacts the cleaning plate 21 and pushes the cleaning plate 21 to rotate around the crushing frame 8. When the cleaning plate 21 rotates, it removes the sand or impurities adhering to its surface. After the actuating rod 23 passes the cleaning plate 21, the first spring 22 pulls the cleaning plate 21 back to its original position. The reciprocating swing of the cleaning plate 21 continuously cleans the spray area of ​​the nozzle 5, preventing the nozzle 5 from being blocked by sand.

[0021] Secondly, see Figure 5In this embodiment, the mixing assembly 7 includes a mixing frame 12, which is fixedly installed at the bottom of the support 1 and communicates with the crushing frame 8. A mixing shaft 13 is laterally rotatably installed inside the mixing frame 12, and a plurality of mixing rods 14 are fixedly installed on the mixing shaft 13. One end of the mixing shaft 13 passes through the mixing frame 12, and a discharge plate 24 is rotatably installed at the bottom of the mixing frame 12. A limiting plate 25 is slidably installed on the side of the mixing frame 12, and the limiting plate 25 is slidably installed with the discharge plate 24. The mixing frame 12 is fixed at the bottom of the support 1 and located directly below the crushing frame 8. The mixing frame 12 communicates with the crushing frame 8 so that the crushed molding sand can fall from the crushing frame 8 into the mixing frame 12. The mixing shaft 13 is laterally rotatably installed inside the mixing frame 12 and can rotate around its own axis. The mixing rods 14 are fixed on the mixing shaft 13 and rotate together with the mixing shaft 13. The number of mixing rods 14 is multiple and they rotate along the mixing shaft 13. Distributed along its length, the stirring rod 14 rotates within the stirring frame 12 to stir and agitate the crushed molding sand, ensuring thorough mixing of the molding sand and cooling medium for uniform cooling. One end of the stirring shaft 13 extends through the side wall of the stirring frame 12 to the outside of the frame for connecting to the drive device. The discharge plate 24 is rotatably mounted at the bottom of the stirring frame 12 and can rotate around the frame to open or close. When the discharge plate 24 is open, the stirred molding sand is discharged from the stirring frame 12. When the discharge plate 24 is closed, it maintains the seal at the bottom of the stirring frame 12 to prevent molding sand leakage. The limiting plate 25 is slidably mounted on the side of the stirring frame 12 and can slide along the frame. The limiting plate 25 and the discharge plate 24 are slidably engaged. When the limiting plate 25 slides to the first position, it locks the discharge plate 24 in the closed state. When the limiting plate 25 slides to the second position, it releases the lock on the discharge plate 24, allowing it to rotate and open.

[0022] A second motor 15 is fixedly mounted on the side of the support 1. A second pulley 16 is fixedly mounted on the side of both the second motor 15 and the mounting shaft 10. A second transmission belt 17 is connected between the second pulleys 16. The second motor 15, fixed on the side of the support 1, provides driving force to the crushing component 6. The second pulleys 16 are respectively fixed on the output shaft of the second motor 15 and the side of the mounting shaft 10. The second transmission belt 17 is sleeved between the two second pulleys 16. When the second motor 15 starts, the output shaft of the second motor 15 drives the second pulleys 16 to rotate. The second pulleys 16 drive the second pulleys 16 on the mounting shaft 10 to rotate through the second transmission belt 17. The mounting shaft 10 rotates together with the second pulleys 16, driving the crushing blade 11 to rotate and achieve the crushing action.

[0023] A third pulley 18 is fixedly installed on the side of the stirring shaft 13. A third transmission belt 19 is connected between the third pulley 18 and the second pulley 16 located on the second motor 15. The third pulley 18 is fixed on one end of the stirring shaft 13 that passes through the stirring frame 12. The third transmission belt 19 is sleeved between the third pulley 18 and the second pulley 16. When the second motor 15 is started, the second pulley 16 drives the third pulley 18 to rotate through the third transmission belt 19. The third pulley 18 drives the stirring shaft 13 to rotate. The stirring shaft 13 drives the stirring rod 14 to rotate inside the stirring frame 12 to achieve the stirring action. The second motor 15 simultaneously drives the crushing component 6 and the stirring component 7 to achieve synchronous operation of crushing and stirring.

[0024] Finally, see Figure 2 In this embodiment, a shield 20 is fixedly installed on the bracket 1. The shield 20 covers the second motor 15. The shield 20 is fixed on the bracket 1 and located outside the second motor 15. The shield 20 completely covers the second motor 15 inside it. The function of the shield 20 is to protect the second motor 15 from the intrusion of external dust and sand particles, and at the same time prevent the operator from accidentally contacting the running pulley and transmission belt, thereby improving the safety of equipment operation.

[0025] The oscillation assembly 26 includes an oscillation disk 27, which is fixedly mounted on the top of the support 1 by a second spring 28. An oscillation motor 29 is fixedly mounted on the bottom of the oscillation disk 27. The oscillation disk 27 is located on the top of the support 1 above the conveying frame 9. The oscillation disk 27 is used to place the casting to be processed. The second spring 28 is fixed between the support 1 and the oscillation disk 27, providing elastic support to the top of the support 1. There are multiple second springs 28 evenly distributed around the bottom of the oscillation disk 27. The second springs 28 provide elastic support and buffering for the oscillation disk 27. The oscillation motor 29 is fixed at the bottom of the oscillation disk 27 to provide vibration force to the oscillation disk 27. When the oscillation motor 29 is started, it vibrates. The vibration is transmitted to the casting placed on the oscillation disk 27. The molding sand and core sand on the surface of the casting fall off and separate from the surface of the casting under the action of vibration. The fallen molding sand falls into the conveying frame 9 and enters the crushing assembly 6 for processing.

[0026] The support frame 1 is a frame structure used to support and fix all the components of the entire device. The top of the support frame 1 is provided with an installation plane for fixing the holding frame 3, the crushing frame 8 and the vibration assembly 26. The bottom of the support frame 1 is provided with an installation plane for fixing the stirring frame 12. The holding frame 3 is a box structure fixed to one side of the top of the support frame 1. The top of the holding frame 3 is provided with a feeding port for replenishing cooling medium or cleaning medium. The conveying pipe 4 is a round pipe structure that extends from the side of the holding frame 3 and extends along the support frame 1 to the side of the crushing frame 8. The nozzle 5 is fixed at the end of the conveying pipe 4 and is located inside or on the side of the crushing frame 8. The spray direction of the nozzle 5 is towards the inside of the crushing frame 8.

[0027] The crushing frame 8 is a box structure fixed to the top of the support 1 and located on the side of the holding frame 3. The top of the crushing frame 8 is connected to the conveying frame 9. The conveying frame 9 is a funnel-shaped structure with a large opening at the top and a small opening at the bottom to facilitate the collection of molding sand. The mounting shaft 10 is horizontally rotatably set inside the crushing frame 8. The two ends of the mounting shaft 10 are rotatably connected to the side wall of the crushing frame 8 through bearings. The crushing blade 11 is a blade-shaped structure fixed on the outer surface of the mounting shaft 10 and distributed along the axial direction of the mounting shaft 10. The crushing blade 11 cuts and crushes the molding sand when the mounting shaft 10 rotates. The cleaning plate 21 is a plate-shaped structure and is rotatably connected to the side of the crushing frame 8 through a hinge. The cleaning plate 21 is located on the spray path of the nozzle 5. The actuating rod 23 is a rod-shaped structure fixed on the mounting shaft 10 and extends outward from the outer surface of the mounting shaft 10. When the actuating rod 23 rotates with the mounting shaft 10, its end contacts the cleaning plate 21 and pushes the cleaning plate 21 to swing.

[0028] The mixing frame 12 is a box-shaped structure fixed to the bottom of the support 1, located below the crushing frame 8. The top of the mixing frame 12 is connected to the bottom of the crushing frame 8. The crushed molding sand falls from the crushing frame 8 into the mixing frame 12 under the action of gravity. The mixing shaft 13 is horizontally rotatable inside the mixing frame 12. Both ends of the mixing shaft 13 are rotatably connected to the side wall of the mixing frame 12 through bearings. The mixing rod 14 is a rod-shaped structure fixed on the mixing shaft 13 and extends outward along the radial direction of the mixing shaft 13. When the mixing shaft 13 rotates, the mixing rod 14 feeds the molding sand... The mixing process involves tumbling and mixing. The discharge plate 24 is a plate-shaped structure that is rotatably connected to the bottom edge of the mixing frame 12 via a hinge. The size of the discharge plate 24 is adapted to the opening size at the bottom of the mixing frame 12. The limiting plate 25 is a plate-shaped structure that is slidably disposed on the side of the mixing frame 12. The limiting plate 25 slides vertically. When the limiting plate 25 slides downward, its bottom contacts the surface of the discharge plate 24, restricting the discharge plate 24 to the closed position. When the limiting plate 25 slides upward, it releases the restriction on the discharge plate 24, allowing the discharge plate 24 to rotate and open.

[0029] Working principle: This automatic sand-removing and sand-cleaning device for a foundry crusher works by placing the casting to be removed from the sand on the vibrating disc 27 and starting the vibrating motor 29. The vibration generated by the motor 29 is transmitted to the casting through the vibrating disc 27. The molding sand and core sand on the surface of the casting fall off and separate under the vibration. The fallen molding sand enters the crushing frame 8 through the conveying frame 9. At the same time, the cooling medium stored in the holding frame 3 of the additive component 2 is conveyed to the nozzle 5 through the conveying pipe 4. The nozzle 5 sprays the cooling medium into the crushing frame 8 to cool the high-temperature molding sand. The second motor 15 is started, and the second motor 15 drives the mounting shaft 10 to rotate through the second pulley 16 and the second transmission belt 17. The mounting shaft 10 drives the crushing blade 11 to rotate and crush the agglomerated molding sand in the crushing frame 8. As the mounting shaft 10 rotates, it drives the actuating rod 23 to rotate. During the rotation, the actuating rod 23 pushes the cleaning plate 21 to swing. The cleaning plate 21 cleans the spray area of ​​the nozzle 5 to prevent the nozzle 5 from being blocked by sand. The crushed molding sand falls from the crushing frame 8 into the mixing frame 12. At the same time, the second motor 15 drives the mixing shaft 13 to rotate through the third pulley 18 and the third transmission belt 19. The mixing shaft 13 drives the mixing rod 14 to rotate in the mixing frame 12 to stir and turn the crushed molding sand, so that the molding sand and the cooling medium are fully mixed to achieve uniform cooling. After the stirring is completed, the upper sliding limit plate 25 releases the lock on the discharge plate 24. The discharge plate 24 rotates and opens to discharge the cooled molding sand from the mixing frame 12, completing the whole process of sand cleaning, crushing and cooling.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand-cleaning and crushing device for a foundry crusher that can automatically remove adhering sand, characterized in that, include: Support (1); An oscillation assembly (26) is mounted on the bracket (1); Add component (2), the add component (2) is installed on the bracket (1), the add component (2) includes a holding frame (3), the holding frame (3) is fixedly set on the top of the bracket (1), one end of the conveying pipe (4) is fixedly set on the side of the holding frame (3), and the other end of the conveying pipe (4) is fixedly set with a nozzle (5). A crushing assembly (6) is mounted on the side of the bracket (1); as well as A stirring assembly (7) is installed at the bottom of the crushing assembly (6).

2. The casting crusher sand cleaning and crushing device with automatic sand removal capability according to claim 1, characterized in that, The crushing component (6) includes a crushing frame (8), which is fixedly disposed on the top of the support (1). A conveying frame (9) is fixedly disposed on the top of the crushing frame (8). The crushing frame (8) is connected to the conveying pipe (4). An installation shaft (10) is rotatably disposed inside the crushing frame (8), and a crushing blade (11) is fixedly disposed on the installation shaft (10).

3. The casting crusher sand cleaning and crushing device with automatic sand removal capability according to claim 2, characterized in that, The stirring assembly (7) includes a stirring frame (12), which is fixedly disposed at the bottom of the support (1). The stirring frame (12) is connected to the crushing frame (8). A stirring shaft (13) is rotatably disposed inside the stirring frame (12). Several stirring rods (14) are fixedly disposed on the stirring shaft (13). One end of the stirring shaft (13) passes through the stirring frame (12). A discharge plate (24) is rotatably disposed at the bottom of the stirring frame (12). A limiting plate (25) is slidably disposed on the side of the stirring frame (12). The limiting plate (25) is slidably disposed with the discharge plate (24).

4. The casting crusher sand cleaning and crushing device with automatic sand removal capability according to claim 3, characterized in that, A second motor (15) is fixedly installed on the side of the bracket (1), and a second pulley (16) is fixedly installed on the side of both the second motor (15) and the mounting shaft (10), and a second transmission belt (17) is provided between the second pulleys (16).

5. The casting crusher sand cleaning and crushing device with automatic sand removal capability according to claim 4, characterized in that, A third pulley (18) is fixedly provided on the side of the stirring shaft (13), and a third transmission belt (19) is provided between the third pulley (18) and the second pulley (16) located on the motor.

6. The casting crusher sand cleaning and crushing device with automatic sand removal capability according to claim 5, characterized in that, A shield (20) is fixedly installed on the fixed frame, and the shield (20) covers the second motor (15).

7. The casting crusher sand cleaning and crushing device with automatic sand removal capability according to claim 6, characterized in that, A cleaning plate (21) is rotatably provided on the side of the pulverizing frame (8). The cleaning plate (21) is adapted to the nozzle (5). One end of a first spring (22) is fixedly provided on the pulverizing frame (8). The other end of the first spring (22) is fixedly provided to the cleaning plate (21). A toggle rod (23) is fixedly provided on the mounting shaft (10). The toggle rod (23) is adapted to the cleaning plate (21).

8. The casting crusher sand cleaning and crushing device with automatic sand removal capability according to claim 7, characterized in that, The oscillation assembly (26) includes an oscillation disk (27), which is fixedly mounted on the top of the bracket (1) by a second spring (28), and an oscillation motor (29) is fixedly mounted on the bottom of the oscillation disk (27).

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