Sand mold casting forming machine

Abstract

The invention relates to the technical field of sand mold casting, and discloses a sand mold casting forming machine which comprises a casting table, a scattering barrel is arranged above the casting table, a sand screening plate is arranged under the scattering barrel, a protection box is fixedly installed on the outer wall of the sand screening plate, a sand box is arranged under the sand screening plate, and the sand box is placed at the top of the casting table. A scattering assembly and a scraping assembly are arranged in the scattering barrel, the scattering assembly is used for scattering caked sand in the scattering barrel, and the scraping assembly is used for scraping away sand attached to the inner wall of the scattering barrel; sand inside the scattering barrel and on the upper surface of the sand screening plate is stirred, so that caked sand is dispersed, particles of the sand can be distributed more uniformly by scattering the sand, the agglomeration phenomenon is reduced, the passing rate of the screen is increased, and a first rotating plate drives a scraping plate to revolve and rotate to scrape away the sand adhering to the whole inner wall of the scattering barrel.

Description

Technical Field

[0001] The invention belongs to the technical field of sand casting, and specifically relates to a sand mold casting forming machine. Background Art

[0002] Sand casting machine is a mechanical equipment that uses sand to make a mold, melts the metal into a liquid that meets certain requirements, and then pours it into the mold. After cooling, solidification and cleaning, a casting with a predetermined shape, size and performance is obtained. It is widely used in machinery manufacturing, automobile manufacturing, aerospace, shipbuilding and other fields to produce various complex structure castings, such as engine blocks, cylinder heads, gear boxes, etc.

[0003] The prior art also proposes some solutions: for example, a patent application with publication number CN117483678A discloses a sand casting device: including a cleaning part, which drives the mold plate downward through the main cylinder to drive mold I or mold II downward, so that mold I or mold II is washed with water, air-dried, and covered with a parting agent in turn, so that the mold can be cleaned after working once to prevent the mold from being contaminated by impurities.

[0004] Existing casting machines need to inject sand into a sand box to form a mold for sand casting. The sand needs to be screened before being injected into the mold to remove foreign particles contained in the sand to prevent the foreign particles from affecting the casting quality of the casting. Since the sand is prone to agglomeration before being screened through the screening plate, the agglomeration will cause the screening process to be obstructed and the screening efficiency to be reduced.

[0005] To this end, the present invention provides a sand mold casting molding machine. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art: solve at least one technical problem raised in the background technology.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a sand mold casting machine described in the present invention includes a casting table, a breaking up cylinder is arranged above the casting table, a sand screening plate is arranged directly below the breaking up cylinder, a protective box is fixedly installed on the outer wall of the sand screening plate, a sand box is arranged directly below the sand screening plate, the sand box is placed on the top of the casting table, a breaking up assembly and a scraping assembly are arranged inside the breaking up cylinder, the breaking up assembly is used to break up the sand agglomerated inside the breaking up cylinder, the scraping assembly is used to scrape off the sand adhered to the inner wall of the breaking up cylinder, and a shaking assembly is arranged outside the sand screening plate, and the shaking assembly is used to make the sand screening plate shake continuously.

[0008] Preferably, the breaking up assembly includes a rotating plate one, the bottom of the rotating plate one is rotatably connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a break up device, the outer side of the casting table is fixedly connected to an external frame, the inner side of the external frame is fixedly installed with a motor, the motor is located directly above the center of the breaking up barrel, the output shaft of the motor is fixedly connected to the top of the rotating plate one, the bottom of the rotating plate one is fixedly connected to a slider, the top of the breaking up barrel is provided with a circular slide groove, the slider and the circular slide groove are slidably connected and adapted to each other.

[0009] Preferably, the scraper assembly includes multiple scrapers, the outer walls of the scrapers are fitted with the interior of the scattering barrel, the multiple scrapers are fixedly connected by an axle rod, the axle rod connecting the scrapers is located below the rotating plate one and is rotatably connected to the bottom of the rotating plate one, and a linkage assembly is provided between the rotating rod and the top of the scraper axle rod to enable the scatterer and the scraper to rotate.

[0010] Preferably, the linkage assembly includes an outer gear ring, which is fixedly mounted on the outer wall of the breaking up barrel, the teeth of the outer gear ring are meshed with a gear, the shaft of the gear is rotatably connected to the bottom of the rotating plate, the top of the gear shaft, the top of the rotating rod and the top of the scraper shaft are all fixedly connected with a transmission ring, and a transmission belt is fixedly connected between the outer walls of the multiple transmission rings.

[0011] Preferably, the outer wall of the protection box is fixedly connected to a plurality of receiving platforms, the outer wall of the breaking up cylinder is fixedly connected to the external receiving platform, the number of the external receiving platforms is the same as the receiving platform and their positions correspond to each other, the bottoms of the plurality of external receiving platforms are fixedly connected to a second reset spring, the top of the protection box is fixedly connected to a plurality of round tables, the tops of the plurality of round tables are fixedly connected to the other end of the second reset spring, and each external receiving platform is interconnected by an arc rod.

[0012] Preferably, the shaking assembly includes multiple fixed blocks, a connecting frame is fixedly connected between the multiple fixed blocks, a plug-in rod is inserted into the inner wall of the multiple fixed blocks, a circular plate is fixedly connected to the bottom of the multiple plug-in rods, a return spring is fixedly connected between the bottom of the fixed block and the top of the circular plate, a downward pressure ball is fixedly connected to the bottom of the multiple circular plates, and the multiple downward pressure balls are respectively fitted with the top of the multiple receiving platforms.

[0013] Preferably, the tops of the plurality of plug-in rods 1 are fixedly connected to a triangular platform, the bottom of the rotating plate 1 is fixedly connected to a squeezing ball, and the outer wall of the squeezing ball fits with the outer wall of the triangular platform.

[0014] Preferably, a connecting frame 2 is fixedly connected between the outer wall of the plurality of connecting frames 1 and the external platform, a fixing frame is fixedly connected to the bottom of the connecting frame 1, and the fixing frame is fixedly installed on the top of the casting platform.

[0015] Preferably, the inner walls of the plurality of connecting frames one are all plugged with plug-in rods three, and one end of the plurality of plug-in rods three is fixedly connected with an impact piece.

[0016] Preferably, the output shaft of the motor is fixedly connected to a rotating plate 2, which is in a vertical relationship with the rotating plate 1 and fixedly connected thereto, connecting rods are fixedly connected to the bottoms of both ends of the rotating plate 2, magnet blocks 1 are fixedly connected to the bottoms of the two connecting rods, the other ends of the multiple plug-in rods 3 are fixedly connected to magnet blocks 2, a reset spring 3 is fixedly connected between one side of the magnet block 2 and one side of the connecting frame 1, and the surfaces adjacent to each other have the same magnetic poles.

[0017] The beneficial effects of the present invention are as follows: 1. The sand mold casting machine described in the present invention, through the cooperation of the rotation rod and the scatterer driven by the motor to revolve and rotate, stirs the sand inside the scattering barrel and on the upper surface of the sand screening plate, so that the agglomerated sand is dispersed. The scattering of the sand can make its particle distribution more uniform, reduce the agglomeration phenomenon, thereby increasing the pass rate of the screen. In the process of breaking up the agglomerated sand, the rotating plate drives the scraper to revolve and rotate, thereby achieving the effect of scraping off the sand adhered to the entire inner wall of the scattering barrel, avoiding the sand adhering to the inner wall of the scattering barrel to cause waste and pollution.

[0018] 2. In the sand mold casting machine described in the present invention, a shaking component will move during the process of breaking up the sand inside the breaking cylinder. The shaking component can make the protective box 4 shake continuously in different directions to prevent the existing particles from clogging the sieve holes of the sand screening plate when the sand is filtered through the sieve holes of the sand screening plate, thereby causing the screening process to be obstructed. The sand is more evenly distributed and flows on the sieve surface, and the particles are more likely to fall through the sieve holes, preventing the material from accumulating in a certain area of ​​the sieve surface, thereby improving the screening efficiency.

[0019] 3. The sand mold casting machine described in the present invention will continuously move multiple connecting rods three inward in the inner wall of the corresponding connecting frame one during the process of breaking up the sand and shaking the sand screening plate. When the connecting rods three slide inward in the inner wall of the connecting frame one, multiple impact members will continuously hit the outer wall of the protective box, causing the outer wall surface of the protective box to vibrate, so that the sand flows faster when being screened through the sand screening plate, and also prevents some sand from adhering to the inner wall surface of the protective box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is an overall stereogram of the present invention; Figure 2 It is a structural schematic diagram of a rotating plate in the present invention; Figure 3 It is a structural schematic diagram of the motor in the present invention; Figure 4It is a structural schematic diagram of the scatterer in the present invention; Figure 5 It is a structural schematic diagram of the sand screening plate in the present invention; Figure 6 It is a schematic diagram of the structure of the external connection station in the present invention; Figure 7 It is a structural schematic diagram of the breaking tube in the present invention; Figure 8 It is a structural schematic diagram of a magnet block in the present invention; Fig. 9 It is a schematic diagram of the external structure of the protection box in the present invention; Fig.10 It is a structural schematic diagram of the triangular platform in the present invention.

[0022] In the figure: 1, casting table; 2, scattering cylinder; 3, sand screening plate; 4, protective box; 5, motor; 6, rotating plate 1; 7, rotating rod; 8, scatterer; 9, outer gear ring; 10, gear; 11, transmission ring; 12, transmission belt; 13, scraper; 14, slider; 15, circular slide; 16, receiving table; 17, squeezing ball; 18, triangular table; 19, plug rod 1; 20, fixed block; 21, complex 1. Position spring one; 22. Round plate; 23. Pressing ball; 24. Connecting frame one; 25. Fixed frame; 26. External platform; 27. Return spring two; 28. Round platform; 29. ​​Arc rod; 30. Connecting frame two; 31. Rotating plate two; 32. Connecting rod; 33. Magnet block one; 34. Magnet block two; 35. Connecting rod three; 36. Return spring three; 37. Impact piece; 38. External frame; 39. Sand box. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figures 1 to 10 As shown, the present invention provides a technical solution: a sand mold casting machine, comprising a casting table 1, a breaking up cylinder 2 is arranged above the casting table 1, a sand screening plate 3 is arranged directly below the breaking up cylinder 2, a protective box 4 is fixedly installed on the outer wall of the sand screening plate 3, a sand box 39 is arranged directly below the sand screening plate 3, the sand box 39 is placed on the top of the casting table 1, a breaking up component and a scraping component are arranged inside the breaking up cylinder 2, the breaking up component is used to break up the sand agglomerated inside the breaking up cylinder 2, the scraping component is used to scrape off the sand adhered to the inner wall of the breaking up cylinder 2, and a shaking component is arranged outside the sand screening plate 3, and the shaking component is used to make the sand screening plate 3 shake continuously.

[0025] During operation: Since sand is prone to clump before passing through the screening plate for screening, the clump will cause the screening process to be blocked and the screening efficiency to be reduced. Through the embodiment of this scheme, during specific use, the sand of the casting mold is first injected into the inside of the scattering cylinder 2, and the sand will fall onto the upper surface of the sand screening plate 3 and most of the sand will remain in the inside of the scattering cylinder 2. When the sand flows down through the sand screening plate 3 for screening, the clumped sand will block the sieve holes of the sand screening plate 3, resulting in most of the sieve being unable to pass through the sieve holes of the sand screening plate 3 and flow down to the sand box 39 below. At this time, the scattering component is started, and the scattering component will stir the sand inside the scattering cylinder 2 and on the upper surface of the sand screening plate 3, so that The agglomerated sand is dispersed, and breaking up the sand can make its particle distribution more uniform, reduce agglomeration, and thus increase the pass rate of the screen; in the process of breaking up the agglomerated sand, the scraper component will also clean the inner wall of the breaking cylinder 2 to prevent the sand from adhering to the inner wall of the breaking cylinder 2, thereby causing waste and pollution; at the same time, the shaking component will move, and the shaking component can make the sand screening plate 3 shake continuously to generate a certain impact force, to prevent the sand from being filtered from the sieve holes of the sand screening plate 3, and the existing particles will clog the sieve holes of the sand screening plate 3, thereby causing the screening process to be obstructed, and shaking the sand screening plate 3 can also make the sand pass through the sieve holes more easily, thereby improving the screening efficiency.

[0026] like Figures 3 to 5 As shown, the breaking up assembly includes a rotating plate 6, the bottom of the rotating plate 6 is rotatably connected to a rotating rod 7, the outer wall of the rotating rod 7 is fixedly connected to a break-up device 8, the outer side of the casting table 1 is fixedly connected to an external frame 38, the inner side of the external frame 38 is fixedly installed with a motor 5, the motor 5 is located just above the center of the breaking up cylinder 2, the output shaft of the motor 5 is fixedly connected to the top of the rotating plate 6, the bottom of the rotating plate 6 is fixedly connected to a slider 14, the top of the breaking up cylinder 2 is provided with a circular slide groove 15, the slider 14 and the circular slide groove 15 are slidably connected and adapted to each other.

[0027] During operation: start the motor 5, and its output shaft will drive the rotating plate 6 to rotate above the scattering barrel 2, and because the position of the motor 5 is fixed by the external frame 38, the rotating plate 6 will slide along the inner wall of the circular slide groove 15 through the slider 14. When the rotating plate 6 rotates, the rotating rod 7 and the scatterer 8 will revolve inside the scattering barrel 2, and in the process of the rotating rod 7 and the scatterer 8 revolving, the rotating rod 7 and the scatterer 8 can also rotate on their own. Through the mutual coordination of the revolution and rotation of the rotating rod 7 and the scatterer 8, the sand inside the scattering barrel 2 and on the upper surface of the sand screening plate 3 can be fully scattered, thereby improving the effect of scattering the sand.

[0028] like Figures 3 to 5As shown, the scraper assembly includes a plurality of scrapers 13, the outer walls of the scrapers 13 are fitted with the interior of the scattering barrel 2, and the plurality of scrapers 13 are fixedly connected by an axle rod. The axle rod connecting the scrapers 13 is located below the rotating plate 6 and is rotatably connected to the bottom of the rotating plate 6. A linkage assembly is provided between the rotating rod 7 and the top of the axle rod of the scraper 13 to enable the scatterer 8 and the scraper 13 to rotate.

[0029] During operation: the rotating plate 6 rotates, so that when the scatterer 8 revolves inside the scattering cylinder 2, the scraper 13 can revolve tightly against the inner wall of the scattering cylinder 2, and through the linkage component, when the scraper 13 revolves along the inner wall of the scattering cylinder 2, it can also rotate on its own. In the mutual cooperation of the revolution and rotation of the scraper 13, the effect of scraping off the sand adhered to the entire inner wall of the scattering cylinder 2 is achieved.

[0030] like Figures 3 to 5 As shown, the linkage assembly includes an outer gear ring 9, which is fixedly mounted on the outer wall of the breaking up barrel 2. The teeth of the outer gear ring 9 are meshed with a gear 10. The shaft of the gear 10 is rotatably connected to the bottom of the rotating plate 6. The top of the shaft of the gear 10, the top of the rotating rod 7 and the top of the shaft of the scraper 13 are all fixedly connected with a transmission ring 11. The outer walls of the multiple transmission rings 11 are fixedly connected with a transmission belt 12.

[0031] During operation: the rotating plate 6 rotates, so that the rotating rod 7 and the scatterer 8 and the scraper 13 revolve inside the scattering barrel 2, and the gear 10 rotates along the outer side of the outer gear ring 9. Since the teeth of the outer gear ring 9 and the gear 10 mesh with each other and rotate, when the rotating plate 6 rotates, the gear 10 rotates on its own, and through the transmission ring 11 and the transmission belt 12, the scatterer 8 and the scraper 13 rotate on their own, thereby achieving the process of the scatterer 8 and the scraper 13 revolving inside the scattering barrel 2, the scatterer 8 and the scraper 13 themselves can rotate on their own, thereby achieving the effect of breaking up and scraping off the sand, and achieving the effect of breaking up and scraping off all the sand inside the scattering barrel 2.

[0032] like Figure 6 to Figure 7 As shown, the outer wall of the protection box 4 is fixedly connected to a plurality of receiving platforms 16, the outer wall of the breaking up cylinder 2 is fixedly connected to an external connecting platform 26, the number of the external connecting platforms 26 is the same as the receiving platform 16 and the positions correspond to each other, the bottoms of the plurality of external connecting platforms 26 are fixedly connected to a reset spring 27, the top of the protection box 4 is fixedly connected to a plurality of round tables 28, the tops of the plurality of round tables 28 are fixedly connected to the other end of the reset spring 27, and each external connecting platform 26 is interconnected with an arc rod 29.

[0033] During operation: When the breaking up component is working, the shaking component will also move, and the shaking component can make multiple receiving platforms 16 move downward in sequence. The downward-moving receiving platform 16 will cause the protective box 4 to deflect in the direction of the downward-moving receiving platform 16. When the receiving platform 16 no longer moves downward, the reset spring 27 drives the protective box 4 to reset quickly, thereby achieving a shaking effect; thus, by using multiple receiving platforms 16 to move downward in sequence, the protective box 4 can be deflected in the direction of the multiple receiving platforms 16 in sequence, and then a continuous shaking effect in different directions can be achieved, so that the sand is more evenly distributed and flows on the screen surface, and the sand is more likely to fall through the screen holes, preventing the sand from accumulating in a certain area of ​​the screen surface, thereby improving the screening efficiency.

[0034] like Figures 9 and 10 As shown, the shaking assembly includes a plurality of fixed blocks 20, a connecting frame 24 is fixedly connected between the plurality of fixed blocks 20, a plug-in rod 19 is inserted into the inner walls of the plurality of fixed blocks 20, a circular plate 22 is fixedly connected to the bottom of the plurality of plug-in rods 19, a return spring 21 is fixedly connected between the bottom of the fixed block 20 and the top of the circular plate 22, a downward pressure ball 23 is fixedly connected to the bottom of the plurality of circular plates 22, and the plurality of downward pressure balls 23 are respectively fitted with the top of a plurality of receiving platforms 16.

[0035] During operation: when the motor 5 drives the rotating plate 6 to rotate, multiple plug-in rods 19 will be squeezed and moved downward in turn. In the process of the plug-in rod 19 moving downward, the downward pressure ball 23 will be driven to move downward. When the downward pressure ball 23 moves downward, multiple receiving platforms 16 will move downward in turn, thereby achieving the effect of continuous shaking of the protective box 4 in different directions, and each plug-in rod 19 can be quickly reset by the reset spring 21 after being pressed downward, thereby achieving the effect of continuous shaking.

[0036] like Figures 7 to 9 As shown, the tops of the plurality of plug-in rods 19 are fixedly connected to a triangular platform 18 , and the bottom of the rotating plate 6 is fixedly connected to a squeezing ball 17 , and the outer wall of the squeezing ball 17 fits with the outer wall of the triangular platform 18 .

[0037] During operation: when the motor 5 drives the rotating plate 6 to rotate above the breaking up cylinder 2, the squeezing ball 17 will rotate on the periphery of the breaking up cylinder 2, and during the rotation of the squeezing ball 17, it will contact multiple triangular platforms 18 in turn. When contacting each triangular platform 18, the triangular platform 18 will be squeezed and moved downward by the rotation force exerted on the squeezing ball 17. When multiple triangular platforms 18 move downward in turn, they will drive multiple connecting rods 19 to move downward in turn, and through the shaking assembly, multiple receiving platforms 16 will move downward in turn. During the whole process of the receiving platforms 16 moving downward in turn, the protective box 4 and the sand screening plate 3 are driven to shake continuously in different directions during the rotation cycle of the rotating plate 6.

[0038] like Figures 7 and 8 As shown, a connecting frame 2 30 is fixedly connected between the outer wall of the connecting frame 1 24 and the external platform 26 , and a fixing frame 25 is fixedly connected to the bottom of the connecting frame 1 24 , and the fixing frame 25 is fixedly installed on the top of the casting platform 1 .

[0039] During operation: the fixed block 20 and the connecting frame 1 24 are fixed in position by the fixing frame 25, so that the shaking assembly can always wait at a fixed position for the squeezing ball 17 to squeeze and move down, and the position of the breaking cylinder 2 is fixed by the connecting frame 2 30, so that the protection box 4 can always form a shaking relationship with the breaking cylinder 2.

[0040] like Figures 9 and 10 As shown, the inner walls of the plurality of connecting frames 24 are all plugged with plug rods 35, and one end of the plurality of plug rods 35 is fixedly connected with a striking member 37.

[0041] During operation: While the entire device is breaking up the sand and shaking the sand screening plate 3, multiple plug-in rods 35 will continuously move inward in the inner wall of the corresponding connecting frame 24. When the plug-in rods 35 slide inward in the inner wall of the connecting frame 24, multiple impact members 37 will continuously impact the outer wall of the protective box 4, causing the outer wall surface of the protective box 4 to vibrate, so that the sand flows faster when being screened through the sand screening plate 3, and also prevents some sand from adhering to the inner wall surface of the protective box 4.

[0042] like Figures 9 and 10 As shown, the output shaft of the motor 5 is fixedly connected to a rotating plate 2 31, and the rotating plate 2 31 is in a vertical relationship with the rotating plate 1 6 and is fixedly connected. The bottoms of both ends of the rotating plate 2 31 are fixedly connected to connecting rods 32, and the bottoms of the two connecting rods 32 are fixedly connected to magnet blocks 1 33, and the other ends of the multiple plug-in rods 35 are fixedly connected to magnet blocks 2 34, and a reset spring 36 is fixedly connected between one side of the magnet block 24 and one side of the connecting frame 1 24, and the surfaces of the magnet block 1 33 and the magnet block 2 34 adjacent to each other have the same magnetic poles.

[0043] During operation: when the motor 5 drives the rotating plate 1 6 to rotate, it will also drive the rotating plate 2 31 to rotate. When the rotating plate 2 31 rotates, the magnet block 1 33 will rotate around the periphery of the scattering barrel 2. When the magnet block 1 33 revolves, it will approach different magnet blocks 2 34 in turn. When a magnet block 2 34 is approached by the magnet block 1 33, since the magnetic properties of the surfaces of the magnet block 1 33 and the magnet block 2 34 are the same, a repulsive force will appear, thereby realizing the corresponding plug-in rod 3 35 sliding inward and causing the impact member 37 to hit the outer wall of the protective box 4. Each time the magnet block 1 33 rotates away, the magnet block 2 34 that was approached last time will be quickly reset by the reset spring 3 36, so as to facilitate the next use.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sand casting machine, comprising a casting table (1), characterized in that: A dispersing cylinder (2) is arranged above the casting table (1), a sand screening plate (3) is arranged directly below the dispersing cylinder (2), a protective box (4) is fixedly installed on the outer wall of the sand screening plate (3), a sand box (39) is arranged directly below the sand screening plate (3), and the sand box (39) is placed on the top of the casting table (1), a dispersing assembly and a scraping assembly are arranged inside the dispersing cylinder (2), the dispersing assembly is used to disperse the sand agglomerated inside the dispersing cylinder (2), and the scraping assembly is used to scrape off the sand adhered to the inner wall of the dispersing cylinder (2), and a shaking assembly is arranged outside the sand screening plate (3), and the shaking assembly is used to make the sand screening plate (3) shake continuously.

2. A sand casting machine according to claim 1, characterized in that: The dispersing assembly comprises a rotating plate (6), the bottom of the rotating plate (6) is rotatably connected to a rotating rod (7), the outer wall of the rotating rod (7) is fixedly connected to a dispersing device (8), the outer side of the casting table (1) is fixedly connected to an external frame (38), the inner side of the external frame (38) is fixedly installed with a motor (5), the motor (5) is located just above the center of the dispersing cylinder (2), the output shaft of the motor (5) is fixedly connected to the top of the rotating plate (6), the bottom of the rotating plate (6) is fixedly connected to a slider (14), the top of the dispersing cylinder (2) is provided with a circular slide groove (15), the slider (14) and the circular slide groove (15) are slidably connected and mutually adapted.

3. A sand casting machine according to claim 2, characterized in that: The scraper assembly comprises a plurality of scrapers (13), the outer walls of the scrapers (13) being fitted with the interior of the scattering barrel (2), the plurality of scrapers (13) being fixedly connected by shafts, the shafts connecting the scrapers (13) being located below the rotating plate (6) and being rotatably connected to the bottom of the rotating plate (6), and a linkage assembly for enabling the scatterer (8) and the scraper (13) to rotate is provided between the rotating rod (7) and the top of the shaft of the scraper (13).

4. A sand casting machine according to claim 3, characterized in that: The linkage assembly comprises an outer gear ring (9) which is fixedly mounted on the outer wall of the scattering barrel (2); the teeth of the outer gear ring (9) are meshed with a gear (10); the shaft of the gear (10) is rotatably connected to the bottom of the rotating plate (6); the top of the shaft of the gear (10), the top of the rotating rod (7) and the top of the shaft of the scraper (13) are all fixedly connected to a transmission ring (11); and a transmission belt (12) is fixedly connected between the outer walls of the plurality of transmission rings (11).

5. A sand casting machine according to claim 4, characterized in that: The outer wall of the protection box (4) is fixedly connected to a plurality of receiving platforms (16), the outer wall of the disintegrating cylinder (2) is fixedly connected to an external connecting platform (26), the number of the external connecting platforms (26) is the same as that of the receiving platforms (16) and their positions correspond to each other, the bottoms of the plurality of external connecting platforms (26) are fixedly connected to a second return spring (27), the top of the protection box (4) is fixedly connected to a plurality of round platforms (28), the tops of the plurality of round platforms (28) are fixedly connected to the other end of the second return spring (27), and each of the external connecting platforms (26) is connected to each other by an arc rod (29).

6. A sand casting machine according to claim 5, characterized in that: The shaking assembly comprises a plurality of fixed blocks (20), a connecting frame (24) being fixedly connected between the plurality of fixed blocks (20), a plug-in rod (19) being inserted into the inner walls of the plurality of fixed blocks (20), a circular plate (22) being fixedly connected to the bottom of the plurality of plug-in rods (19), a return spring (21) being fixedly connected between the bottom of the fixed block (20) and the top of the circular plate (22), a downward pressure ball (23) being fixedly connected to the bottom of the plurality of circular plates (22), and the plurality of downward pressure balls (23) being respectively fitted with the tops of the plurality of receiving platforms (16).

7. A sand casting machine according to claim 6, characterized in that: The tops of the plurality of plug-in rods (19) are all fixedly connected to a triangular platform (18), the bottom of the rotating plate (6) is fixedly connected to a squeezing ball (17), and the outer wall of the squeezing ball (17) is in contact with the outer wall of the triangular platform (18).

8. A sand casting machine according to claim 7, characterized in that: A connecting frame 2 (30) is fixedly connected between the outer walls of the plurality of connecting frames 1 (24) and the external platform (26); a fixing frame (25) is fixedly connected to the bottom of the connecting frame 1 (24); and the fixing frame (25) is fixedly installed on the top of the casting platform (1).

9. A sand casting machine according to claim 8, characterized in that: The inner walls of the plurality of connecting frames (24) are all plugged with plugging rods (35), and one end of the plurality of plugging rods (35) is fixedly connected with a striking member (37).

10. A sand casting machine according to claim 9, characterized in that: The output shaft of the motor (5) is fixedly connected to a rotating plate 2 (31), the rotating plate 2 (31) and the rotating plate 1 (6) are in a vertical relationship and fixedly connected, the bottoms of both ends of the rotating plate 2 (31) are fixedly connected to connecting rods (32), the bottoms of the two connecting rods (32) are fixedly connected to magnet blocks 1 (33), the other ends of the plurality of plug-in rods 3 (35) are fixedly connected to magnet blocks 2 (34), one side of the magnet block 2 (34) and one side of the connecting frame 1 (24) are fixedly connected to a return spring 3 (36), and the adjacent surfaces of the magnet block 1 (33) and the magnet block 2 (34) have the same magnetic pole.

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