Device and method for preparing high-quality reclaimed sand for sand mold casting

Abstract

The invention discloses a device and method for preparing high-quality reclaimed sand for sand mold casting. The device comprises a screening rotating frame, a screening assembly is installed in the screening rotating frame, a top frame is rotatably installed at the top of the screening rotating frame, a top plate is fixedly installed at the top of the top frame, and a smashing and feeding assembly is installed at the top of the top plate. A vibration knocking assembly is installed at the bottom of the top plate. A bottom frame is rotationally installed at the bottom of the screening rotating frame. The foundry sand needing to be treated and recycled can be crushed through the arranged crushing and feeding assembly, metal particles in the foundry sand are adsorbed, the screening assembly can be knocked through the arranged vibration knocking assembly, and the screening effect can be improved; through cooperative work of the crushing and feeding assembly, the screening assembly, the vibrating and knocking assembly and the driving assembly, efficient crushing, precise screening and high-quality recycling of foundry sand needing to be treated and recycled are achieved, and powerful technical support is provided for sustainable development of the foundry industry.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sand casting, in particular to a high-quality reclaimed sand preparation device and method for sand casting. BACKGROUND

[0002] As a basic process in manufacturing industry, sand casting occupies a dominant position in global casting production. The harmful substances remaining in waste sand are the main threat to the environment. Volatile organic compounds such as formaldehyde, benzene and phenol can emit a pungent odor and pollute the atmospheric environment. Alkaline substances seep into the ground after being washed by rainwater, causing soil alkalization and water pollution. Dust further aggravates air pollution.

[0003] The quality of reclaimed sand directly affects the quality of castings, and the screening step is the key step to control the quality of reclaimed sand. The traditional screening uses a single-layer screen structure, which has limited screening area and insufficient processing capacity, affecting the quality of reclaimed sand. Moreover, reclaimed sand contains a large amount of binder residue, metal debris and other impurities, which easily adhere to the screen, causing screen clogging and significantly reducing screening efficiency. SUMMARY

[0004] The purpose of the present application is to provide a high-quality reclaimed sand preparation device and method for sand casting to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical solution: a high-quality reclaimed sand preparation device for sand casting, comprising a screening rotating frame, a screening assembly is installed inside the screening rotating frame, a top frame is rotatably installed on the top of the screening rotating frame, a top plate is fixedly installed on the top of the top frame, a crushing and feeding assembly is installed on the top of the top plate, a vibration and knocking assembly is installed at the bottom of the top plate, a bottom frame is rotatably installed at the bottom of the screening rotating frame, and a driving assembly is installed on the outside of the screening rotating frame and the top frame.

[0006] Preferably, the screening assembly comprises a screening plate, a screening hole is formed in the inside of the screening plate, a sliding plate is fixedly installed on the outside of the screening plate, and a return spring is fixedly connected to the bottom of the sliding plate.

[0007] Preferably, a sliding groove is formed in the inside of the screening rotating frame, the sliding plate is slidingly installed in the inside of the sliding groove, a limiting slide rod is fixedly installed in the inside of the sliding groove, the sliding plate and the return spring are both sleevedly installed on the outside of the limiting slide rod, the end of the return spring away from the sliding plate is fixedly connected to the bottom of the inner cavity of the sliding groove, and the top and bottom of the screening plate are both fixedly connected with a shielding cloth, and the ends of the shielding cloth away from the screening plate are respectively fixedly connected to the top and bottom of the inner cavity of the sliding groove.

[0008] Preferably, the crushing feeding assembly comprises a crushing frame, a feeding hopper is communicated with the top of the crushing frame, two crushing rollers are rotatably installed in the crushing frame, a transmission gear is fixedly installed at one end of each of the two crushing rollers, the two transmission gears are engaged with each other, a protective cover two is fixedly installed at one side of the crushing frame, a crushing motor is fixedly installed at the end of the protective cover two away from the crushing frame, a clamping seat is clampingly installed at one side of the crushing frame, and a magnet rod is fixedly installed at one side of the clamping seat.

[0009] Preferably, the magnet rod is located directly above the center of the two crushing rollers and has the same distance from the two crushing rollers, four clamping grooves are formed in one side of the crushing frame, four clamping blocks are fixedly installed at the outside of the clamping seat, the four clamping blocks are clampingly installed in the four clamping grooves, the output end of the crushing motor is fixedly connected with one side of one of the transmission gears, and two guide plates are fixedly and symmetrically installed in the crushing frame.

[0010] Preferably, the vibration and knocking assembly comprises an inner sleeve plate and a rotating ring, the rotating ring is rotatably installed at the outside of the inner sleeve plate, an inner sleeve rod is fixedly installed at the bottom of the inner sleeve plate, an outer sleeve is sleevedly installed at the outside of the inner sleeve rod, a knocking head is fixedly installed at the bottom of the outer sleeve, a moving installation plate is fixedly installed at the top of the outer sleeve, two magnet blocks three are fixedly and symmetrically installed at the top of the moving installation plate, two connecting blocks are fixedly and symmetrically installed at the bottom of the rotating ring, rotating installation plates are fixedly installed at the bottom of the two connecting blocks, four magnet blocks one and four magnet blocks two are fixedly installed at the bottom of the rotating installation plates, and the four magnet blocks one and the four magnet blocks two are spaced apart.

[0011] Preferably, the magnetic poles at the top of the magnet blocks three and the bottom of the magnet blocks one are opposite, the magnetic poles at the top of the magnet blocks three and the bottom of the magnet blocks two are the same, two fixed bending rods are fixedly and symmetrically installed at the top of the inner sleeve plate, and the ends of the two fixed bending rods away from the inner sleeve plate are fixedly connected with the top of the top plate, a telescopic connecting rod is fixedly installed at the bottom of the rotating ring, the bottom end of the telescopic connecting rod is fixedly connected with the top of the screening plate, a protective cover is fixedly installed at the bottom of the top plate, a connecting cloth cover is fixedly installed at the bottom of the protective cover, and a connecting ring is fixedly connected with the bottom of the connecting cloth cover, an annular groove is formed in the top of the screening plate, and the connecting ring is rotatably installed in the annular groove.

[0012] Preferably, the driving assembly comprises a driving motor and a transmission gear ring, a driving gear is fixedly installed at the output end of the driving motor, the transmission gear ring is fixedly installed at the outside of the screening rotating frame, and the outside of the driving gear and the outside of the transmission gear ring are engaged with each other, a fixed plate is fixedly installed at the top of the driving motor, and one side of the fixed plate is fixedly installed at the outside of the top frame.

[0013] Preferably, the outer side of the top frame and the bottom frame is fixedly provided with a fixed connecting plate, the bottom of the bottom frame is symmetrically and fixedly provided with four supporting seats, and the top of the top plate is provided with a cleaning groove, and a blocking plate is connected and arranged in the cleaning groove.

[0014] The use method of the high-quality reclaimed sand preparation device for sand casting has the characteristics that:

[0015] S1: First, pour the casting sand that needs to be treated and recycled into the inside of the feeding hopper. After the crushing motor is started, one of the transmission gears can be driven to rotate through the output end, thereby driving the other transmission gear to rotate, and thereby driving the two crushing rollers to rotate. The surface of the crushing rollers is convex, thereby cooperating with the magnet bar to crush the clumped casting sand, and the magnet bar can adsorb the metal particles remaining in the casting sand.

[0016] S2: The casting sand crushed by the crushing rollers and the magnet bar can fall on the top of the screening plate. The screening holes are arranged in the inside of the screening plate to screen the casting sand. After the driving motor is rotated, the driving gear can be driven to rotate, thereby driving the screening rotating frame to rotate through the transmission gear ring. The crushed casting sand can fall on different positions on the top of the screening plate, thereby improving the screening effect.

[0017] S3: When the top frame rotates, the rotating ring can be driven to rotate through the telescopic connecting rod, thereby driving the rotating mounting plate to rotate through the connecting block, so that the magnet block one and the magnet block two pass through the magnet block three on the top of the moving mounting plate. When the magnet block two passes through the magnet block three, the magnet block two can exert a repulsive force on the magnet block three, so that the outer sleeve slides downward on the outside of the inner sleeve rod, thereby knocking the screening plate, so that the screening plate moves downward, thereby dispersing the casting sand on the top of the screening plate, achieving effective screening, and the sliding plate moves in the inside of the sliding groove, thereby pressing the return spring through the sliding plate. When the magnet block one passes through the magnet block three, the magnet block one can exert an attractive force on the magnet block three, so that the connecting block drives the outer sleeve to move upward on the outside of the inner sleeve rod, thereby resetting the positions of the outer sleeve and the knocking head, so that the outer sleeve and the knocking head reciprocate up and down to knock the screening plate.

[0018] S4: The artificial can place the external collection frame on the bottom of the screening plate to collect the screened casting sand. In addition, the blocking plate inside the cleaning groove can be opened to clean the residual casting sand on the top of the screening plate.

[0019] Compared with the prior art, the present application has the beneficial effects that: the crushing and feeding assembly provided can crush the foundry sand that needs to be treated and reused, and adsorb the metal particles inside the foundry sand, the crushed foundry sand can be screened by the top frame internal screening assembly, so that the foundry sand with the same particle size is obtained, which is convenient for subsequent reuse, in addition, the vibration and knocking assembly provided can knock the screening assembly, which can improve the screening effect, and the driving assembly provided can make the top frame rotate, so that the screening assembly is driven to rotate, which can make the crushed foundry sand fall at different positions on the top of the screening assembly, improve the screening effect, and through the cooperation of the crushing and feeding assembly, the screening assembly, the vibration and knocking assembly and the driving assembly, efficient crushing, accurate screening and high-quality recycling of the foundry sand that needs to be treated and reused are realized, which provides strong technical support for the sustainable development of the foundry industry.

[0020] The crushed foundry sand can fall on the top of the screening plate, and the screening holes are formed in the inside of the screening plate to screen the foundry sand, and the driving motor can drive the driving gear to rotate, so that the screening rotating frame is driven to rotate through the transmission gear ring, so that the crushed foundry sand falls at different positions on the top of the screening plate, avoiding the situation that the screening holes are blocked due to excessive accumulation of foundry sand in local areas, and the foundry sand at different positions can be more fully contacted with the screening holes when passing through the screening holes, so that the foundry sand meeting the particle size can smoothly pass through the screening holes, while the particles not meeting the requirements are left above the screening plate, thereby greatly improving the screening effect and improving the overall quality and production efficiency of the foundry sand.

[0021] The foundry sand that needs to be treated and reused is poured into the inside of the feeding hopper, the crushing motor is started, one of the transmission gears is driven to rotate through the output end, the other transmission gear is driven to rotate, and the two crushing rollers are driven to rotate, the surface of the crushing roller is convex, so as to crush the agglomerated foundry sand together with the magnet rod, and the magnet rod can adsorb the metal particles remaining in the foundry sand, thereby improving the purity and quality of the recycled foundry sand, and providing high-quality raw materials for the subsequent reuse process. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the present application.

[0023] Figure 2 It is another perspective three-dimensional structure schematic diagram of the present application.

[0024] Figure 3 It is a three-dimensional structure schematic diagram of the present application without the screening assembly.

[0025] Figure 4 It is a three-dimensional structure schematic diagram of the screening assembly of the present application.

[0026] Figure 5 The figure is a schematic diagram of the screening rotating frame structure of the application.

[0027] Figure 6 The figure is a schematic diagram of the screening plate structure of the application.

[0028] Figure 7 The figure is a schematic diagram of the crushing assembly structure of the application.

[0029] Figure 8 The figure is a schematic diagram of the knocking assembly structure of the application.

[0030] Figure 9 The figure is a schematic diagram of the rotating installation plate structure of the application.

[0031] In the figure: 1, screening rotating frame; 2, top frame; 3, bottom frame; 4, top plate; 5, feeding hopper; 6, guide plate; 7, crushing roller; 8, magnet bar; 9, clamping block; 10, clamping seat; 11, fixed connection plate; 12, fixed bent rod; 13, inner sleeve plate; 14, rotating ring; 15, cleaning groove; 16, fixed plate; 17, driving motor; 18, protective cover I; 19, support seat; 20, connecting ring; 21, protective cover; 22, connecting cloth cover; 23, crushing frame; 24, driving gear; 25, screening plate; 26, screening hole; 27, shielding cloth; 28, protective cover II; 29, transmission gear; 30, crushing motor; 31, rotating installation plate; 32, connecting block; 33, telescopic connecting rod; 34, annular groove; 35, transmission gear ring; 36, sliding groove; 37, limiting sliding rod; 38, return spring; 39, sliding plate; 40, inner sleeve rod; 41, outer sleeve; 42, knocking head; 43, moving installation plate; 44, magnet block III; 45, magnet block I; 46, magnet block II. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0033] Please refer to Figures 1-9 The application provides a technical solution: a high-quality reclaimed sand preparation device for sand casting, comprising a screening rotating frame 1, a screening assembly is installed inside the screening rotating frame 1, a top frame 2 is rotatably installed at the top of the screening rotating frame 1, a top plate 4 is fixedly installed at the top of the top frame 2, a crushing and feeding assembly is installed at the top of the top plate 4, a vibration and knocking assembly is installed at the bottom of the top plate 4, a bottom frame 3 is rotatably installed at the bottom of the screening rotating frame 1, and a driving assembly is installed outside the screening rotating frame 1 and the top frame 2.

[0034] The working principle of the above technical scheme is that: the crushing and feeding assembly can crush the casting sand that needs to be treated and reused, and adsorb the metal particles in the casting sand. The crushed casting sand can be screened by the internal screening assembly of the top frame 2, so as to obtain casting sand with a particle size that meets the requirements, facilitating subsequent reuse. In addition, the vibration and knocking assembly can knock the screening assembly, which can improve the screening effect. Moreover, the driving assembly can drive the top frame 2 to rotate, thereby driving the screening assembly to rotate, so that the crushed casting sand falls on different positions on the top of the screening assembly, improving the screening effect. Through the cooperative work of the crushing and feeding assembly, the screening assembly, the vibration and knocking assembly, and the driving assembly, efficient crushing, accurate screening, and high-quality recycling of the casting sand that needs to be treated and reused are realized, providing strong technical support for the sustainable development of the casting industry.

[0035] In another embodiment, as shown in Figures 1-9 The screening assembly includes a screening plate 25, the inside of the screening plate 25 is provided with a screening hole 26, the outside of the screening plate 25 is fixedly installed with a sliding plate 39, the bottom of the sliding plate 39 is fixedly connected with a return spring 38, the inside of the screening rotating frame 1 is provided with a sliding groove 36, the sliding plate 39 is slidingly installed in the inside of the sliding groove 36, the inside of the sliding groove 36 is fixedly installed with a limiting slide rod 37, and the sliding plate 39 and the return spring 38 are both sleevedly installed on the outside of the limiting slide rod 37, the end of the return spring 38 away from the sliding plate 39 is fixedly connected with the bottom of the inside of the sliding groove 36, the top and bottom of the screening plate 25 are both fixedly connected with a shielding cloth 27, and the end of the shielding cloth 27 away from the screening plate 25 is respectively fixedly connected with the top and bottom of the inside of the sliding groove 36, the driving assembly includes a driving motor 17 and a transmission gear ring 35, the output end of the driving motor 17 is fixedly installed with a driving gear 24, the transmission gear ring 35 is fixedly installed on the outside of the screening rotating frame 1, and the outside of the driving gear 24 is engaged with the outside of the transmission gear ring 35, the top of the driving motor 17 is fixedly installed with a fixed plate 16, and one side of the fixed plate 16 is fixedly installed on the outside of the top frame 2, the outside of the top frame 2 and the bottom frame 3 is fixedly installed with a fixed connecting plate 11, the bottom of the bottom frame 3 is symmetrically fixedly installed with four supporting seats 19, the top of the top plate 4 is provided with a cleaning groove 15, and a blocking plate is clampedly installed in the inside of the cleaning groove 15.

[0036] The crushed casting sand can fall on the top of the screening plate 25, the casting sand is screened through the screening holes 26 opened in the inside of the screening plate 25, and the driving motor 17 can drive the driving gear 24 to rotate, thereby driving the screening rotating frame 1 to rotate through the transmission gear ring 35, so that the crushed casting sand can fall on different positions on the top of the screening plate 25, avoiding the situation that the local area of the casting sand is accumulated too much to cause the screening holes 26 to be blocked, and the casting sand at different positions can be more fully contacted with the screening holes 26 when passing through the screening holes 26, so that the casting sand meeting the particle size can smoothly pass through the screening holes 26, and the particles not meeting the requirements are left above the screening plate, thereby greatly improving the screening effect and improving the overall quality and production efficiency of the casting sand.

[0037] In another embodiment, as shown in Figures 1-9 The crushing feeding assembly comprises a crushing frame 23, the top of the crushing frame 23 is communicated with the feeding hopper 5, two crushing rollers 7 are rotatably installed in the inside of the crushing frame 23, one end of each of the two crushing rollers 7 is fixedly installed with a transmission gear 29, the two transmission gears 29 are engaged with each other, a protective cover 28 is fixedly installed on one side of the crushing frame 23, the protective cover 28 is fixedly installed with a crushing motor 30 at the end away from the crushing frame 23, a clamping seat 10 is clamped and installed on one side of the crushing frame 23, a magnet rod 8 is fixedly installed on one side of the clamping seat 10, the magnet rod 8 is located directly above the center of the two crushing rollers 7, and the distance between the magnet rod 8 and the two crushing rollers 7 is the same, four clamping grooves are formed on one side of the crushing frame 23, and four clamping blocks 9 are fixedly installed on the outside of the clamping seat 10 and clamped and installed in the four clamping grooves, and the output end of the crushing motor 30 is fixedly connected with one side of one of the transmission gears 29, and two material guiding plates 6 are symmetrically fixedly installed in the inside of the crushing frame 23.

[0038] The casting sand to be treated and recycled is poured into the inside of the feeding hopper 5, the crushing motor 30 is started, one of the transmission gears 29 is driven to rotate through the output end, thereby driving the other transmission gear 29 to rotate, and thereby driving the two crushing rollers 7 to rotate, the surface of the crushing roller 7 is convex, thereby crushing the agglomerated casting sand in cooperation with the magnet rod 8, and the magnet rod 8 can adsorb the metal particles remaining in the casting sand, thereby improving the purity and quality of the recycled casting sand and providing high-quality raw materials for the subsequent recycling process.

[0039] In another embodiment, as shown in Figures 1-9As shown, the vibration knocking assembly includes an inner sleeve circular plate 13 and a rotating ring 14, and the rotating ring 14 is rotatably installed on the outside of the inner sleeve circular plate 13. The bottom of the inner sleeve circular plate 13 is fixedly installed with an inner sleeve rod 40. The outside of the inner sleeve rod 40 is sleevedly installed with an outer sleeve 41. The bottom of the outer sleeve 41 is fixedly installed with a knocking head 42. The top of the outer sleeve 41 is fixedly installed with a moving installation plate 43. The top of the moving installation plate 43 is fixedly installed with two magnet blocks three 44 in a symmetrical manner. The bottom of the rotating ring 14 is fixedly installed with two connecting blocks 32 in a symmetrical manner. The bottom of each of the two connecting blocks 32 is fixedly installed with a rotating installation plate 31. The bottom of the rotating installation plate 31 is fixedly installed with four magnet blocks one 45 and four magnet blocks two 46. The four magnet blocks one 45 and the four magnet blocks two 46 are arranged in a spaced manner. The magnetic poles at the top of the magnet blocks three 44 and the magnetic poles at the bottom of the magnet blocks one 45 are opposite. The magnetic poles at the top of the magnet blocks three 44 and the magnetic poles at the bottom of the magnet blocks two 46 are the same. The top of the inner sleeve circular plate 13 is fixedly installed with two fixed bending rods 12 in a symmetrical manner. The ends, away from the inner sleeve circular plate 13, of the two fixed bending rods 12 are fixedly connected with the top of the top plate 4. The bottom of the rotating ring 14 is fixedly installed with a telescopic connecting rod 33. The bottom end of the telescopic connecting rod 33 is fixedly connected with the top of the screening plate 25. The bottom of the top plate 4 is fixedly installed with a protective cover 21. The bottom of the protective cover 21 is fixedly installed with a connecting cloth cover 22. The bottom of the connecting cloth cover 22 is fixedly connected with a connecting ring 20. The top of the screening plate 25 is provided with an annular groove 34. The connecting ring 20 is rotatably installed in the inside of the annular groove 34.

[0040] When the top frame 2 rotates, the rotating ring 14 can be driven to rotate through the telescopic connecting rod 33, so that the rotating installation plate 31 is driven to rotate through the connecting blocks 32, so that the magnet blocks one 45 and the magnet blocks two 46 pass through the magnet blocks three 44 at the top of the moving installation plate 43. When the magnet blocks two 46 pass through the magnet blocks three 44, the magnet blocks two 46 can exert a repulsive force on the magnet blocks three 44, so that the outer sleeve 41 slides downward on the outside of the inner sleeve rod 40, thereby knocking the screening plate 25, so that the screening plate 25 moves downward, thereby dispersing the cast sand at the top of the screening plate 25, achieving effective screening, and the sliding plate 39 moves in the inside of the sliding groove 36, thereby pressing the return spring 38 through the sliding plate 39. When the magnet blocks one 45 pass through the magnet blocks three 44, the magnet blocks one 45 can exert an attractive force on the magnet blocks three 44, so that the connecting blocks 32 drive the outer sleeve 41 to move upward on the outside of the inner sleeve rod 40, thereby resetting the positions of the outer sleeve 41 and the knocking head 42, so that the outer sleeve 41 and the knocking head 42 reciprocate up and down to knock the screening plate 25, forming a continuous and stable screening auxiliary mechanism, which can continuously disperse and screen the cast sand on the screening plate 25, greatly improving the working efficiency and effect of the entire screening system.

[0041] A method for using a high-quality reclaimed sand preparation device for sand casting,

[0042] S1: First, pour the casting sand that needs to be recycled into the inside of the feeding hopper 5. After starting the crushing motor 30, one of the transmission gears 29 can be driven to rotate through the output end, thereby driving the other transmission gear 29 to rotate, and thereby driving the two crushing rollers 7 to rotate. The surface of the crushing roller 7 is convex, thereby cooperating with the magnet bar 8 to crush the clumped casting sand, and the magnet bar 8 can adsorb the metal particles remaining in the casting sand.

[0043] S2: The casting sand crushed by the crushing roller 7 and the magnet bar 8 can fall on the top of the screening plate 25. The screening holes 26 are opened in the inside of the screening plate 25 to screen the casting sand, and the driving motor 17 can drive the driving gear 24 to rotate after rotating, thereby driving the screening rotating frame 1 to rotate through the transmission gear ring 35. This can make the crushed casting sand fall on different positions on the top of the screening plate 25, thereby improving the screening effect.

[0044] S3: Moreover, when the top frame 2 rotates, the rotating ring 14 can be driven to rotate through the telescopic connecting rod 33, thereby driving the rotating installation plate 31 to rotate through the connecting block 32, thereby making the magnet block one 45 and the magnet block two 46 pass through the magnet block three 44 on the top of the moving installation plate 43. When the magnet block two 46 passes through the magnet block three 44, the magnet block two 46 can exert a repulsive force on the magnet block three 44, thereby making the outer sleeve 41 slide downward on the outside of the inner sleeve rod 40, thereby knocking the screening plate 25, thereby making the screening plate 25 move downward, thereby dispersing the casting sand on the top of the screening plate 25, thereby achieving effective screening, and making the sliding plate 39 move in the inside of the sliding groove 36, thereby making the sliding plate 39 press the return spring 38. When the magnet block one 45 passes through the magnet block three 44, the magnet block one 45 can exert an attractive force on the magnet block three 44, thereby making the connecting block 32 drive the outer sleeve 41 to move upward on the outside of the inner sleeve rod 40, thereby resetting the positions of the outer sleeve 41 and the knocking head 42, thereby making the outer sleeve 41 and the knocking head 42 reciprocate up and down to knock the screening plate 25.

[0045] S4: Artificially, the external collection frame can be placed at the bottom of the screening plate 25 to collect the screened casting sand, and in addition, the blocking plate in the inside of the cleaning groove 15 can be opened to clean the residual casting sand on the top of the screening plate 25.

[0046] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-quality recycled sand preparation device for sand casting, comprising a screening rotating frame (1), characterized in that: The screening rotating frame (1) is equipped with a screening component inside. A top frame (2) is rotatably installed on the top of the screening rotating frame (1). A top plate (4) is fixedly installed on the top of the top frame (2). A crushing and feeding component is installed on the top of the top plate (4). A vibration and striking component is installed on the bottom of the top plate (4). A bottom frame (3) is rotatably installed on the bottom of the screening rotating frame (1). A drive component is installed on the outside of the screening rotating frame (1) and the top frame (2).

2. The high-quality recycled sand preparation device for sand casting according to claim 1, characterized in that: The screening assembly includes a screening plate (25), the screening plate (25) has screening holes (26) inside, a sliding plate (39) is fixedly installed on the outside of the screening plate (25), and a return spring (38) is fixedly connected to the bottom of the sliding plate (39).

3. The high-quality recycled sand preparation device for sand casting according to claim 2, characterized in that: The screening rotating frame (1) has a sliding groove (36) inside. The sliding plate (39) is slidably installed inside the sliding groove (36). A limiting slide rod (37) is fixedly installed inside the sliding groove (36). The sliding plate (39) and the return spring (38) are both sleeved and installed on the outside of the limiting slide rod (37). The end of the return spring (38) away from the sliding plate (39) is fixedly connected to the bottom of the inner cavity of the sliding groove (36). The top and bottom of the screening plate (25) are fixedly connected with a shielding cloth (27). The end of the shielding cloth (27) away from the screening plate (25) is fixedly connected to the top and bottom of the inner cavity of the sliding groove (36) respectively.

4. The high-quality recycled sand preparation device for sand casting according to claim 3, characterized in that: The crushing and feeding assembly includes a crushing frame (23), the top of which is connected to a feeding hopper (5). Two crushing rollers (7) are rotatably installed inside the crushing frame (23). A transmission gear (29) is fixedly installed at one end of each of the two crushing rollers (7), and the two transmission gears (29) mesh with each other. A second protective cover (28) is fixedly installed on one side of the crushing frame (23). A crushing motor (30) is fixedly installed at the end of the second protective cover (28) away from the crushing frame (23). A snap-fit ​​seat (10) is snapped onto one side of the crushing frame (23), and a magnet rod (8) is fixedly installed on one side of the snap-fit ​​seat (10).

5. The high-quality recycled sand preparation device for sand casting according to claim 4, characterized in that: The magnet rod (8) is located directly above the center of the two crushing rollers (7), and the distance between the magnet rod (8) and the two crushing rollers (7) is the same. Four slots are provided on one side of the crushing frame (23), and four locking blocks (9) are fixedly installed on the outside of the locking seat (10). The four locking blocks (9) are locked and installed inside the four slots. The output end of the crushing motor (30) is fixedly connected to one side of one of the transmission gears (29). Two guide plates (6) are symmetrically fixedly installed inside the crushing frame (23).

6. The high-quality recycled sand preparation device for sand casting according to claim 5, characterized in that: The vibration striking assembly includes an inner circular plate (13) and a rotating ring (14), and the rotating ring (14) is rotatably installed on the outside of the inner circular plate (13). An inner rod (40) is fixedly installed at the bottom of the inner circular plate (13), and an outer sleeve (41) is sleeved on the outside of the inner rod (40). A striking head (42) is fixedly installed at the bottom of the outer sleeve (41), and a movable mounting plate (43) is fixedly installed at the top of the outer sleeve (41). Two magnet blocks (44) are symmetrically fixedly installed at the top of the movable mounting plate (43). Two connecting blocks (32) are symmetrically fixedly installed at the bottom of the rotating ring (14). A rotating mounting plate (31) is fixedly installed at the bottom of each of the two connecting blocks (32). Four magnet blocks (45) and four magnet blocks (46) are fixedly installed at the bottom of the rotating mounting plate (31), and the four magnet blocks (45) and four magnet blocks (46) are spaced apart.

7. The apparatus for preparing high-quality recycled sand for sand casting according to claim 6, characterized in that: The magnetic poles at the top of the three magnets (44) are opposite to those at the bottom of the one magnet (45), and the magnetic poles at the top of the three magnets (44) are the same as those at the bottom of the two magnets (46). The top of the inner circular plate (13) is symmetrically fixed with two fixed bending rods (12), and the ends of the two fixed bending rods (12) away from the inner circular plate (13) are fixedly connected to the top of the top plate (4). The bottom of the rotating ring (14) is fixedly installed with a telescopic connecting rod (33), and the bottom end of the telescopic connecting rod (33) is fixedly connected to the top of the screening plate (25). The bottom of the top plate (4) is fixedly installed with a protective cover (21), and the bottom of the protective cover (21) is fixedly installed with a connecting cloth sleeve (22), and the bottom of the connecting cloth sleeve (22) is fixedly connected with a connecting ring (20). The top of the screening plate (25) is provided with an annular groove (34), and the connecting ring (20) is rotatably installed inside the annular groove (34).

8. The high-quality recycled sand preparation device for sand casting according to claim 7, characterized in that: The drive assembly includes a drive motor (17) and a transmission gear ring (35). The output end of the drive motor (17) is fixedly mounted with a drive gear (24). The transmission gear ring (35) is fixedly mounted on the outside of the screening rotating frame (1), and the outside of the drive gear (24) and the outside of the transmission gear ring (35) mesh. A fixing plate (16) is fixedly mounted on the top of the drive motor (17), and one side of the fixing plate (16) is fixedly mounted on the outside of the top frame (2).

9. A high-quality recycled sand preparation device for sand casting according to claim 8, characterized in that: A fixed connecting plate (11) is fixedly installed on the outside of the top frame (2) and the bottom frame (3). Four support seats (19) are fixedly installed symmetrically on the bottom of the bottom frame (3). A cleaning groove (15) is opened on the top of the top plate (4), and a sealing plate is snapped into the cleaning groove (15). A protective cover (18) is fixedly installed inside the fixed connecting plate (11), and the transmission gear ring (35) and the drive gear (24) are located inside the protective cover (18).

10. A method of using the high-quality recycled sand preparation device for sand casting according to claims 1-9, characterized in that: S1: First, pour the foundry sand that needs to be processed and reused into the inside of the feeding hopper (5). After the crushing motor (30) is started, it can drive one of the transmission gears (29) to rotate through the output end, thereby driving the other transmission gear (29) to rotate, thereby driving the two crushing rollers (7) to rotate. The surface of the crushing rollers (7) is convex, thereby cooperating with the magnetic rod (8) to crush the agglomerated foundry sand. Moreover, the magnetic rod (8) can adsorb the metal particles remaining in the foundry sand. S2: The foundry sand crushed by the crushing roller (7) and the magnetic rod (8) can fall onto the top of the screening plate (25). The foundry sand is screened through the screening holes (26) inside the screening plate (25). Moreover, after the drive motor (17) rotates, it can drive the drive gear (24) to rotate, thereby driving the screening frame (1) to rotate through the transmission gear ring (35). This allows the crushed foundry sand to fall onto different positions on the top of the screening plate (25), improving the screening effect. S3: Moreover, when the top frame (2) rotates, the rotating ring (14) can be driven to rotate through the telescopic connecting rod (33), thereby driving the rotating mounting plate (31) to rotate through the connecting block (32), so that the first magnet (45) and the second magnet (46) pass through the third magnet (44) on the top of the moving mounting plate (43). When the second magnet (46) passes through the third magnet (44), the second magnet (46) can exert a repulsive force on the third magnet (44), thereby causing the outer sleeve (41) to slide downward on the outside of the inner sleeve rod (40), thereby striking the screening plate (25), thereby causing the screening plate (25) to move downward. This disperses the casting sand on the top of the screening plate (25), achieving effective screening, and causes the sliding plate (39) to move inside the sliding groove (36), thereby pressing the reset spring (38) with the sliding plate (39). When the first magnet (45) passes the third magnet (44), the first magnet (45) can exert an attractive force on the third magnet (44), thereby causing the connecting block (32) to drive the outer sleeve (41) to move upward outside the inner sleeve rod (40), thereby resetting the position of the outer sleeve (41) and the striking head (42), thereby causing the outer sleeve (41) and the striking head (42) to strike the screening plate (25) up and down repeatedly. S4: Manually, an external collection frame can be placed at the bottom of the screening plate (25) to collect the screened foundry sand. In addition, the sealing plate inside the cleaning tank (15) can be opened to clean the foundry sand remaining on the top of the screening plate (25).

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