Precoated sand regeneration equipment for regeneration of casting auxiliary material

Abstract

The invention belongs to the technical field of casting, in particular to precoated sand regeneration equipment for regeneration of a casting auxiliary material, and provides the following scheme that the precoated sand regeneration equipment comprises a box body, a feeding opening is formed in the top of the box body, a drawing opening is formed in the position, located at the bottom, of one side of the box body in a penetrating mode, and a collecting box is slidably connected to the inner wall of the drawing opening; a crushing mechanism is arranged between the two opposite sides of the box body, guide plates are connected to the inner walls of the two opposite sides of the box body through bolts, the two guide plates are distributed in a shape like a Chinese character'yi ', material limiting mechanisms are arranged at the positions, close to the top, of the inner walls of the two opposite sides of the box body, and the material limiting mechanisms are matched with the crushing mechanism. According to the precoated sand recycling device, blanking of precoated sand can be subjected to material limiting treatment through cooperation of the two material limiting plates, so that recycling of the precoated sand is dispersed, the recycling effect of the precoated sand is improved, and the situation that the crushing effect of the precoated sand is affected due to the fact that the hardness of the precoated sand is large during casting is prevented.

Description

Technical Field

[0001] The present invention relates to the field of casting, and particularly to a coated sand regeneration device for the regeneration of casting auxiliary materials. Background Art

[0002] As a commonly used mold casting material in modern metallurgical industry, coated sand plays an important role in metal casting. Generally, after the mold made of coated sand is completed in casting, in order to reduce the cost input of the enterprise, it is often recycled. And the mold for casting generally has a relatively high hardness. Therefore, when regenerating the coated sand, the coated sand is usually crushed.

[0003] After retrieval, a Chinese patent application with the publication number of CN117680603A discloses a multi-refinement crushing device for regenerating coated sand; including a crushing device, a rolling box, a leveling device, a discharging mechanism and a rolling device; the leveling device includes a horizontal sliding mechanism, a lifting device and a scraper; the mold is crushed by the crushing device, so that the mold enters the rolling box through the crushing device. At this time, the mold is crushed into small pieces and accumulates in the rolling box. The lifting device can adjust the scraper accordingly according to the height at which the mold is accumulated. The small pieces can be spread flat into the rolling box through the horizontal sliding device. When the spreading is completed, the small pieces can be rolled by the rolling device until the small pieces are rolled to the required size, and then discharged through the discharging device. Through the above operations, the mold can be processed multiple times to obtain coated sand with uniform texture, thereby eliminating the need for repeated processing and improving the processing efficiency.

[0004] When crushing the coated sand, the relatively large-sized coated sand is usually loaded into the interior of the device, and the crushing of the coated sand is completed by the crushing mechanism. However, during the crushing process, since the coated sand has a relatively high hardness during casting, when a large amount of coated sand is loaded into the interior of the device and accumulates on the crushing mechanism, at this time, the pressure on the crushing mechanism when crushing the coated sand is relatively large, thus affecting the crushing effect of the coated sand. Summary of the Invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A coated sand regeneration device for the regeneration of casting auxiliary materials, including a box body. The top of the box body is provided with a feed inlet. One side of the box body at the bottom is provided with a through-drawn opening, and a collection box is slidably connected to the inner wall of the drawn opening. A crushing mechanism is arranged between the opposite sides of the box body. Guide plates are connected to the inner walls of the opposite sides of the box body by bolts, and the two guide plates are distributed in an inverted V shape. A material limiting mechanism is arranged at the positions close to the top of the inner walls of the opposite sides of the box body, and the material limiting mechanism and the crushing mechanism form a cooperation.

[0007] Preferably, the crushing mechanism includes two rotating rods, two crushing rollers, a motor, a driving wheel and a driven wheel, and the two ends of the two rotating rods are rotatably connected to the inner walls of the box body opposite to each other through bearings, the two crushing rollers are fixedly sleeved on the outer walls of the rotating rods, one end of the two rotating rods is connected to the shaft rod by bolts, the driving wheel is fixedly sleeved on the outer wall of one of the rotating rods, the driven wheel is fixedly sleeved on the outer wall of the other rotating rod, the driven wheel and the driving wheel are meshed, one side of the box body is connected to the motor by bolts, one end of one of the rotating rods is connected to the supporting shaft by bolts, the outer wall of the supporting shaft and one end of the motor are fixedly sleeved with a first pulley, a first belt is rotatably connected between the two first pulleys, and the two first pulleys have different sizes.

[0008] Preferably, the material limiting mechanism includes a rod body and two material limiting plates, and the two ends of the rod body are rotatably connected to the opposite sides of the box body through bearings, the outer wall of the rod body is provided with a plurality of protrusions, the shape of the protrusions is U-shaped, and the plurality of protrusions are distributed in a wave shape, the outer wall of the protrusions is rotatably sleeved with a shaft sleeve, and a push rod is connected between the shaft sleeve and the material limiting plate by a hinge, and sliding openings are opened on the opposite sides of the box body near the top, and a slider is slidably connected to the inner wall of the sliding opening, and one side of the slider is connected to the material limiting plate by bolts.

[0009] Preferably, a first transmission assembly is arranged between the material limiting mechanism and the crushing mechanism, and the first transmission assembly consists of two transmission wheels and a transmission chain, the two transmission wheels are meshed with the transmission chain, a connecting rod is welded to one end of the rod body, one of the transmission wheels is fixedly sleeved on the outer wall of the connecting rod, and the other transmission wheel is fixedly sleeved on the outer wall of the shaft rod.

[0010] Preferably, a pulverizing mechanism is provided between two opposite sides of the box body, and the pulverizing mechanism cooperates with the crushing mechanism.

[0011] Preferably, the crushing mechanism consists of a rolling roller, a support rod and two side plates, and the two ends of the support rod are rotatably connected to the opposite sides of the box body through bearings, the rolling roller is fixedly sleeved on the outer wall of the support rod, the cross-section of the rolling roller is elliptical, the two side plates are symmetrically distributed on both sides of the rolling roller, one side of the two side plates is connected to the inner wall of the box body by bolts, one side of the two side plates is provided with a bent portion, the raised end of the rolling roller is adapted to the bent portion of the side plate, and a second transmission assembly is provided between the crushing mechanism and the crushing mechanism.

[0012] Preferably, the second transmission assembly consists of two second pulleys and a second belt, and a rotational connection is formed between the two second pulleys and the second belt, one end of the support rod is connected to a fixed shaft by a bolt, one of the second pulleys is fixedly sleeved on the outer wall of the fixed shaft, and the other second pulley is fixedly sleeved on the outer wall of the shaft rod.

[0013] Preferably, positioning holes are opened on the inner walls of the two opposite sides of the box body near the bottom, and the inner walls of the two positioning holes are slidably connected with positioning blocks. A spring is connected between the bottom of the positioning block and the positioning hole by bolts, and a push plate is connected between the two positioning blocks by bolts. The cross-section of the push plate is an isosceles trapezoid, and multiple connecting shafts are connected on both sides of the bottom of the push plate by bolts. The bottom of the connecting shaft is connected to a rolling plate by bolts, and the two rolling plates are symmetrically distributed.

[0014] Preferably, the cross-sections of the two milled plates are both right-angled trapezoids.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention provides a crushing mechanism and a material limiting mechanism. When the coated sand is regenerated, the coated sand with a larger volume is placed inside the box, and the coated sand is guided to the top of the crushing mechanism by the guide plate. At this time, the crushing mechanism is started to crush the coated sand by the crushing mechanism, thereby completing the regeneration of the coated sand. The regenerated coated sand will be collected inside the collection box. During this period, the shaft will rotate with the rotation of the crushing mechanism, and one of the transmission wheels will rotate synchronously with the shaft, so that the transmission chain drives the other transmission wheel to rotate through meshing. At this time, the other transmission wheel will drive the connecting rod and the rod body to rotate when rotating. When the rod body rotates, the protrusion will rotate with the rod The push rod rotates with the rotation of the body. At this time, the push rod will push the limiting plate to swing back and forth under the action of the protrusion and the shaft sleeve. Since the multiple protrusions are distributed in a wave shape on the outer wall of the rod body, the two limiting plates will swing back and forth under the action of the multiple protrusions and the shaft sleeve. Therefore, the two limiting plates can limit the feeding of the coated sand through the cooperation between the two limiting plates, so as to facilitate the dispersion of the regeneration of the coated sand, thereby improving the regeneration effect of the coated sand and preventing the coated sand from being too hard during casting. Therefore, when a large amount of coated sand is loaded into the interior of the equipment and accumulated on the crushing mechanism, the crushing mechanism is subjected to a large pressure when crushing the coated sand, thereby affecting the crushing effect of the coated sand;

[0017] 2. The present invention provides a crushing mechanism and a pulverizing mechanism. When the coated sand is regenerated and crushed by the crushing mechanism, the crushed coated sand will fall onto the pulverizing mechanism. At this time, the rolling roller is rotated by the cooperation between the two second pulleys and the second belt. Since the cross-section of the rolling roller is elliptical, the crushed coated sand is rolled by the cooperation between the raised end of the rolling roller and the curved portion of the side plate, thereby further improving the regeneration effect of the coated sand. When the rolling roller rotates, the raised end of the rolling roller squeezes one side of the push plate. At this time, the push plate moves downward under the pressure of the rolling roller, and the rolling plate moves downward with the downward movement of the push plate, thereby crushing the coated sand through the rolling plate. When the raised end of the rolling roller is away from the push plate, the rolling plate moves upward under the action of the spring, thereby crushing the coated sand through the up and down reciprocating swing of the rolling plate, so as to further improve the regeneration effect of the equipment on the coated sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a coated sand regeneration device for regenerating casting auxiliary materials proposed by the present invention;

[0019] Figure 2 This is a rear structural schematic diagram of a coated sand regeneration device for regenerating casting auxiliary materials proposed by the present invention;

[0020] Figure 3 This is a schematic cross-sectional view of a coated sand regeneration device for regenerating casting auxiliary materials proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the crushing mechanism structure of a coated sand regeneration device for casting auxiliary material regeneration proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of a crushing mechanism of a coated sand regeneration device for casting auxiliary material regeneration proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the material limiting mechanism structure of a coated sand regeneration device for regeneration of casting auxiliary materials proposed by the present invention;

[0024] Figure 7 This is a partial structural schematic diagram of a coated sand regeneration equipment for regenerating casting auxiliary materials proposed by the present invention.

[0025] In the attached drawings: 1. Box body; 2. Positioning port; 3. Crushing mechanism; 4. Material limiting mechanism; 5. Slide port; 6. Crushing mechanism; 7. Guide plate; 8. Pulling port; 9. Collection box; 10. Motor; 11. First pulley; 12. First belt; 13. Support shaft; 14. Rotating rod; 15. Crushing roller; 16. Driving wheel; 17. Driven wheel; 18. Shaft rod; 19. Second belt; 20. Fixed shaft; 21. Second pulley; 22. Side plate; 23. Bending part; 24. Rolling roller; 25. Pushing plate; 26. Positioning block; 27. Spring; 28. Connecting shaft; 29. Rolling plate; 30. Connecting rod; 31. Driving wheel; 32. Driving chain; 33. Rod body; 34. Protruding part; 35. Bush; 36. Material limiting plate. Detailed implementation mode

[0026] Example 1, referring to Figure 1-Figure 7 , a resin-coated sand regeneration device for the regeneration of casting auxiliary materials, including a box body 1. A feeding port is opened at the top of the box body 1. A pulling port 8 is penetrated and opened at the position of one side of the box body 1 at the bottom, and a collection box 9 is slidably connected to the inner wall of the pulling port 8. A crushing mechanism 3 is arranged between the opposite sides of the box body 1. Guide plates 7 are connected to the inner walls of the opposite sides of the box body 1 by bolts, and the two guide plates 7 are distributed in a V-shaped pattern. A material limiting mechanism 4 is arranged at the positions near the top of the inner walls of the opposite sides of the box body 1, and the material limiting mechanism 4 and the crushing mechanism 3 are matched to limit the feeding of the resin-coated sand, so as to disperse the regeneration of the resin-coated sand, thereby improving the regeneration effect of the resin-coated sand and preventing the crushing effect of the resin-coated sand from being affected due to the large hardness of the resin-coated sand during casting. Therefore, when a large amount of resin-coated sand is filled into the device and accumulates on the crushing mechanism 3, the pressure on the resin-coated sand during crushing by the crushing mechanism 3 is large.

[0027] On the above basis, the crushing mechanism 3 includes two rotating rods 14, two crushing rollers 15, a motor 10, a driving wheel 16 and a driven wheel 17. The two ends of the two rotating rods 14 are rotatably connected to the inner walls of the opposite sides of the box body 1 through bearings. The two crushing rollers 15 are fixedly sleeved on the outer walls of the rotating rods 14. Shaft rods 18 are connected to one ends of the two rotating rods 14 by bolts. The driving wheel 16 is fixedly sleeved on the outer wall of one of the rotating rods 14. The driven wheel 17 is fixedly sleeved on the outer wall of the other rotating rod 14. The driven wheel 17 and the driving wheel 16 are meshed. One side of the box body 1 is connected to the motor 10 by bolts. One end of one of the rotating rods 14 is connected to a support shaft 13 by bolts. First pulleys 11 are fixedly sleeved on the outer walls of the support shaft 13 and one end of the motor 10. A first belt 12 is rotatably connected between the two first pulleys 11. The sizes of the two first pulleys 11 are different.

[0028] On the basis of the above, the material limiting mechanism 4 includes a rod body 33 and two material limiting plates 36, and the two ends of the rod body 33 are rotatably connected to the opposite sides of the box body 1 through bearings, and the outer wall of the rod body 33 is provided with a plurality of protrusions 34, the shape of the protrusions 34 is U-shaped, and the plurality of protrusions 34 are distributed in a wave shape. The outer wall of the protrusion 34 is rotatably sleeved with a shaft sleeve 35, and a push rod is connected between the shaft sleeve 35 and the material limiting plate 36 through a hinge. Slide openings 5 ​​are provided on the opposite sides of the box body 1 near the top, and a slider is slidably connected to the inner wall of the slide opening 5, and one side of the slider is connected to the material limiting plate 36 by bolts.

[0029] On the basis of the above, a first transmission assembly is arranged between the material limiting mechanism 4 and the crushing mechanism 3, and the first transmission assembly is composed of two transmission wheels 31 and a transmission chain 32. The two transmission wheels 31 are meshed with the transmission chain 32, and a connecting rod 30 is welded at one end of the rod body 33. One of the transmission wheels 31 is fixedly sleeved on the outer wall of the connecting rod 30, and the other transmission wheel 31 is fixedly sleeved on the outer wall of the shaft rod 18. When the coated sand is regenerated, the coated sand with a larger volume is loaded into the interior of the box body 1, and the coated sand is guided to the top of the crushing mechanism 3 through the guide plate 7. At this time, the crushing mechanism 3 is started, and the coated sand is crushed by the crushing mechanism 3, thereby completing the regeneration of the coated sand. The regenerated coated sand will be collected in the collection box 9. During this period, the shaft rod 18 will rotate with the rotation of the crushing mechanism 3, and one of the transmission wheels 31 will rotate synchronously with the shaft rod 18, so that the transmission chain 32 drives the other through meshing. When the rod body 33 is rotated, the protrusion 34 will rotate with the rotation of the rod body 33. At this time, the push rod will push the limiting plate 36 to swing back and forth under the action of the protrusion 34 and the shaft sleeve 35. Since the plurality of protrusions 34 are distributed in a wave-like manner on the outer wall of the rod body 33, the two limiting plates 36 will swing back and forth under the action of the plurality of protrusions 34 and the shaft sleeve 35. Therefore, the cooperation between the two limiting plates 36 can limit the feeding of the coated sand, so as to facilitate the dispersed treatment of the regeneration of the coated sand, thereby improving the regeneration effect of the coated sand and preventing the coated sand from being too hard during casting. Therefore, when a large amount of coated sand is loaded into the interior of the equipment and accumulated on the crushing mechanism 3, the crushing mechanism 3 is subjected to a large pressure when crushing the coated sand, thereby affecting the crushing effect of the coated sand.

[0030] Example 2, reference Figure 1-Figure 5 , a coated sand regeneration equipment for regenerating casting auxiliary materials. Compared with Example 1, on the basis of Example 1, a crushing mechanism 6 is arranged between the opposite sides of the box body 1, and the crushing mechanism 6 and the crushing mechanism 3 are matched.

[0031] On the basis of the above, the crushing mechanism 6 consists of a rolling roller 24, a support rod and two side plates 22, and the two ends of the support rod are rotatably connected to the opposite sides of the box body 1 through bearings. The rolling roller 24 is fixedly sleeved on the outer wall of the support rod. The cross-section of the rolling roller 24 is elliptical. The two side plates 22 are symmetrically distributed on both sides of the rolling roller 24. One side of the two side plates 22 is connected to the inner wall of the box body 1 by bolts. A bending portion 23 is provided on one side of the two side plates 22. The raised end of the rolling roller 24 is adapted to the bending portion 23 of the side plate 22. A second transmission assembly is provided between the crushing mechanism 6 and the crushing mechanism 3.

[0032] On the basis of the above, the second transmission assembly consists of two second pulleys 21 and a second belt 19, and a rotational connection is formed between the two second pulleys 21 and the second belt 19. One end of the support rod is connected to a fixed shaft 20 by bolts, one of the second pulleys 21 is fixedly sleeved on the outer wall of the fixed shaft 20, and the other second pulley 21 is fixedly sleeved on the outer wall of the shaft 18.

[0033] On the basis of the above, positioning holes 2 are opened near the bottom of the inner walls of the two opposite sides of the box body 1, and the inner walls of the two positioning holes 2 are slidably connected with positioning blocks 26. A spring 27 is bolted between the bottom of the positioning block 26 and the positioning hole 2. A push plate 25 is bolted between the two positioning blocks 26. The cross section of the push plate 25 is an isosceles trapezoid. Multiple connecting shafts 28 are bolted on both sides of the bottom of the push plate 25. A rolling plate 29 is bolted at the bottom of the connecting shaft 28. The two rolling plates 29 are symmetrically distributed, and the cross sections of the two rolling plates 29 are both right-angled trapezoids. When the coated sand is regenerated and crushed by the crushing mechanism 3, the crushed coated sand will fall onto the crushing mechanism 6. At this time, the rolling roller 24 is carried out by the cooperation between the two second pulleys 21 and the second belt 19. Rotation, since the cross-section of the rolling roller 24 is elliptical, the crushed coated sand is rolled through the cooperation between the raised end of the rolling roller 24 and the curved portion 23 of the side plate 22, thereby further improving the regeneration effect of the coated sand, and when the rolling roller 24 rotates, the raised end of the rolling roller 24 will squeeze one side of the push plate 25. At this time, the push plate 25 will move downward under the pressure of the rolling roller 24, and the rolling plate 29 will move downward with the downward movement of the push plate 25, thereby crushing the coated sand through the rolling plate 29, and when the raised end of the rolling roller 24 is away from the push plate, the rolling plate 29 will move upward under the action of the spring 27, thereby crushing the coated sand through the up and down reciprocating swing of the rolling plate 29, so as to further improve the regeneration effect of the equipment on the coated sand.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coated sand regeneration device for casting auxiliary material regeneration, comprising a box (1), characterized in that: The top of the box body (1) is provided with a feeding port. One side of the box body (1) at the bottom is penetrated and provided with a draw opening (8), and a collecting box (9) is slidably connected to the inner wall of the draw opening (8). A crushing mechanism (3) is arranged between the opposite sides of the box body (1). Guide plates (7) are bolted to the inner walls of the opposite sides of the box body (1), and the two guide plates (7) are distributed in a V-shaped pattern. A material limiting mechanism (4) is arranged at the positions close to the top of the inner walls of the opposite sides of the box body (1), and the material limiting mechanism (4) and the crushing mechanism (3) cooperate with each other.

2. The coated sand regeneration equipment for casting auxiliary material regeneration according to claim 1 is characterized in that: The crushing mechanism (3) includes two rotating rods (14), two crushing rollers (15), a motor (10), a driving wheel (16) and a driven wheel (17). The two ends of the two rotating rods (14) are rotatably connected to the inner walls of the opposite sides of the box body (1) through bearings. The two crushing rollers (15) are fixedly sleeved on the outer walls of the rotating rods (14). One end of each of the two rotating rods (14) is bolted with a shaft rod (18). The driving wheel (16) is fixedly sleeved on the outer wall of one of the rotating rods (14), and the driven wheel (17) is fixedly sleeved on the outer wall of the other rotating rod (14). The driven wheel (17) and the driving wheel (16) are meshed with each other. One side of the box body (1) is bolted to the motor (10). One end of one of the rotating rods (14) is bolted with a support shaft (13). The outer walls of the support shaft (13) and one end of the motor (10) are both fixedly sleeved with a first belt pulley (11). A first belt (12) is rotatably connected between the two first belt pulleys (11), and the sizes of the two first belt pulleys (11) are different.

3. The coated sand regeneration equipment for casting auxiliary material regeneration according to claim 2 is characterized in that: The material limiting mechanism (4) includes a rod body (33) and two material limiting plates (36). The two ends of the rod body (33) are rotatably connected to the opposite sides of the box body (1) through bearings. A plurality of protruding parts (34) are arranged on the outer wall of the rod body (33). The shape of the protruding parts (34) is U-shaped, and the plurality of protruding parts (34) are distributed in a wavy pattern. A sleeve (35) is rotatably sleeved on the outer wall of the protruding parts (34). A push rod is connected between the sleeve (35) and the material limiting plate (36) through a hinge. Sliding openings (5) are opened at the positions close to the top of the opposite sides of the box body (1). A slider is slidably connected to the inner wall of the sliding opening (5), and one side of the slider is bolted to the material limiting plate (36).

4. The coated sand regeneration equipment for casting auxiliary material regeneration according to claim 3 is characterized in that: A first transmission assembly is arranged between the material limiting mechanism (4) and the crushing mechanism (3), and the first transmission assembly is composed of two transmission wheels (31) and a transmission chain (32). The two transmission wheels (31) are meshed with the transmission chain (32). One end of the rod body (33) is welded with a connecting rod (30). One of the transmission wheels (31) is fixedly sleeved on the outer wall of the connecting rod (30), and the other transmission wheel (31) is fixedly sleeved on the outer wall of the shaft rod (18).

5. The coated sand regeneration equipment for casting auxiliary material regeneration according to claim 2 is characterized in that: A pulverizing mechanism (6) is arranged between the opposite sides of the box body (1), and the pulverizing mechanism (6) and the crushing mechanism (3) cooperate with each other.

6. The coated sand regeneration equipment for casting auxiliary material regeneration according to claim 5 is characterized in that: The crushing mechanism (6) comprises a rolling roller (24), a support rod and two side plates (22), and the two ends of the support rod are rotatably connected to the two opposite sides of the box body (1) through bearings. The rolling roller (24) is fixedly sleeved on the outer wall of the support rod. The cross section of the rolling roller (24) is elliptical. The two side plates (22) are symmetrically distributed on both sides of the rolling roller (24). One side of the two side plates (22) is connected to the inner wall of the box body (1) through bolts. A bent portion (23) is provided on one side of the two side plates (22). The protruding end of the rolling roller (24) is matched with the bent portion (23) of the side plate (22). A second transmission assembly is provided between the crushing mechanism (6) and the crushing mechanism (3).

7. The coated sand regeneration equipment for casting auxiliary material regeneration according to claim 6 is characterized in that: The second transmission assembly is composed of two second pulleys (21) and a second belt (19), and the two second pulleys (21) are rotatably connected to the second belt (19). One end of the support rod is connected to a fixed shaft (20) by bolts, wherein one of the second pulleys (21) is fixedly sleeved on the outer wall of the fixed shaft (20), and the other second pulley (21) is fixedly sleeved on the outer wall of the shaft rod (18).

8. The coated sand regeneration equipment for casting auxiliary material regeneration according to claim 7 is characterized in that: The box body (1) has positioning openings (2) formed on the inner walls of the two opposite sides near the bottom, and the inner walls of the two positioning openings (2) are slidably connected with positioning blocks (26), and a spring (27) is connected between the bottom of the positioning block (26) and the positioning opening (2) by bolts, and a push plate (25) is connected between the two positioning blocks (26) by bolts, and the cross section of the push plate (25) is an isosceles trapezoid, and multiple connecting shafts (28) are connected on both sides of the bottom of the push plate (25) by bolts, and the bottom of the connecting shaft (28) is connected with a rolling plate (29) by bolts, and the two rolling plates (29) are symmetrically distributed.

9. The coated sand regeneration equipment for casting auxiliary material regeneration according to claim 8, characterized in that: The cross sections of the two rolling plates (29) are both right-angled trapezoids.

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