Cooling mechanism of evanescent mode sand regeneration treatment equipment

Abstract

The utility model relates to the technical field of evanescent mode sand regeneration, in particular to a cooling mechanism of evanescent mode sand regeneration treatment equipment, which comprises a cooling box, a water storage bin is arranged in the cooling box, first clamping blocks are arranged on two sides of a cylinder, clamping grooves are arranged at the top of the cooling box corresponding to the first clamping blocks, and an output shaft of a motor is coaxially connected with a main shaft. A sealing cover is arranged above the cylinder, a second clamping block is arranged at the bottom of the sealing cover corresponding to the first clamping block, a feeding hopper is arranged at the top of the sealing cover close to the left end, and a cooling box is arranged at the top of the sealing cover close to the right end; according to the cooling mechanism of the evanescent mode sand regeneration treatment equipment, the cylinder and the sealing cover are combined and matched with the cooling box in an inserted connection mode, a water storage bin at the bottom of the cooling box is filled with cooling liquid to preliminarily cool the cylinder, the sealing cover is matched with a feeding hopper, evanescent mode sand needing a cold area can be continuously added, and the cooling box is matched with a semiconductor chilling plate; double-layer cooling shortens the occupied time of a mold sand cold area.

Description

Technical Field

[0001] This utility model relates to the field of lost foam sand regeneration technology, specifically a cooling mechanism for lost foam sand regeneration equipment. Background Technology

[0002] The lost foam casting process typically involves first bonding and assembling a paraffin or foam model similar in size and shape to the casting to form a mold. After brushing on a refractory coating and drying, the model is placed in a sand box, then filled with dry sand and vibrated to shape it. Finally, it is poured under negative pressure, causing the model to vaporize and the liquid metal to occupy the mold's position. After solidification and cooling, the casting is formed. After the casting is removed from the sand mold, the casting sand is an important material for mold making. The shape and composition of its particles have a significant impact on its fluidity, compactness, permeability, strength, and resistance to liquid metal penetration.

[0003] Utility model patent CN218693637U discloses a cooling mechanism for a lost foam casting sand processing device, including a housing. A cooling chamber is formed inside the top of the housing via a partition. A cooling mechanism is located on one side of the housing. A rotating mechanism is installed inside a power housing. The rotating mechanism includes a first geared motor, a first rotating rod, helical blades, and a geared disc. The output shaft of the first geared motor is connected to one end of the first rotating rod via a coupling. Multiple helical blades are evenly welded to the side wall of the first rotating rod, and these helical blades mesh with the side wall of the geared disc. The center of the geared disc is keyed to one end of a second rotating rod. The other end of the second rotating rod is fixedly connected to the center of one side of a material cylinder. A rotating drum is fixedly installed on the other side of the material cylinder.

[0004] The above technical solution, by setting a rotating mechanism on one side of the barrel, allows the barrel to rotate inside the cooling chamber while cooling the sand inside the barrel through water cooling, making the sand cool more uniformly and improving cooling efficiency and quality; however, it cannot quickly cool down the mold sand after use, shorten the cooling time, and the cooled mold sand is not convenient to be quickly removed, cleaned and collected, and cannot be continuously cooled and used. Utility Model Content

[0005] The purpose of this invention is to provide a cooling mechanism for a lost foam sand regeneration equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cooling mechanism for a lost foam sand regeneration treatment device includes a cooling box with a water storage tank inside. The cooling box has an opening at its top, and a cylinder is located at the opening. First locking blocks are located on both sides of the cylinder. A locking groove is located at the top of the cooling box corresponding to the first locking blocks. A limiting ring is also located at the top of the cooling box near the opening. A motor is located at the right end of the cooling box, and the output shaft of the motor is coaxially connected to a main shaft. The main shaft extends into the cylinder and has a scraper. Several stirring plates are located between the scraper and the main shaft. A sealing cover is located above the cylinder, and a second locking block is located at the bottom of the sealing cover corresponding to the first locking blocks. A feed hopper is located at the top of the sealing cover near the left end, and a cooling box is located at the top of the sealing cover near the right end. A cooling chamber is located at the top of the cooling box, and a semiconductor cooling chip is located at the top of the cooling chamber.

[0008] Furthermore, the cooling box has a base plate at the bottom, the base plate has a right-angled trapezoidal cross-section, the cooling box is tilted as a whole, and the bottom of the cooling box is welded and fixed to the top of the base plate. Support blocks are provided on the lower surface of the base plate near the corners.

[0009] In this invention, the base plate with support blocks helps to lift the cooling box as a whole, increasing the stability of the box when placed independently. The cooling box is tilted, with the right end higher than the left end, which helps the internal coolant flow from the right end to the left end, facilitating drainage. The internally cooled lost foam sand is discharged from the right end to the left end, which helps to concentrate the discharge.

[0010] Specifically, the front end of the cooling box is provided with a drain pipe connected to the water storage tank near the left corner, and the right end of the cooling box is provided with a water inlet pipe connected to the water storage tank near the top. Both the drain pipe and the water inlet pipe are provided with sealing plugs at their ends, and the water storage tank is filled with coolant.

[0011] In this invention, the water storage tank facilitates the storage of coolant, and the coolant contacts the cylinder to cool the interior, thereby cooling the lost foam sand. The water inlet pipe facilitates the introduction of coolant into the water storage tank, and the drain pipe facilitates the replacement of the internal coolant. The sealing plug facilitates manual opening or sealing.

[0012] It should be noted that the first card block and the cylinder are integrally formed. The width of the outer wall of the first card block is adapted to the width of the inner wall of the card slot. The left end face of the cylinder is provided with a discharge pipe that communicates with the inside of the cylinder near the bottom. The discharge pipe extends out of the cooling box and is provided with a sealing bolt at the end of the discharge pipe. The sealing bolt is provided with a handle at the end.

[0013] In this utility model, the first card block and the card slot are inserted and matched to realize the quick assembly and installation of the cylinder and the cooling box. With the cooperation of the discharge pipe, it is convenient to concentrate and discharge the lost foam sand inside. The handle increases the friction force, and the sealing bolt is threadedly connected to the end of the discharge pipe to achieve a stable sealing fit.

[0014] Furthermore, the second card block and the sealing cover are integrally formed, the width of the outer wall of the second card block is adapted to the width of the outer wall of the first card block, the bottom of the limiting ring is welded and fixed to the cooling box, and the width of the inner wall of the limiting ring is adapted to the width of the outer wall of the first card block.

[0015] In this invention, the second locking block and the limiting ring are inserted into each other to achieve corresponding insertion and installation of the sealing cover and the cylinder, thereby increasing the tightness of the assembly.

[0016] Specifically, the second card block has through holes at both ends, and fastening bolts are installed in the through holes. The first card block has screw holes at the corresponding positions of the through holes.

[0017] In this invention, the fastening bolt passes through the through hole and is threadedly connected to the screw hole, which increases the stability of the combination of the sealing cover and the cylinder and prevents it from opening during cooling use, thus affecting the fit of the internal cold zone.

[0018] It is worth noting that the motor is fixedly connected to the cooling box by screws, the scraper is U-shaped, the outer wall of the scraper is tightly fitted to the inner wall of the cylinder, the stirring plate is rectangular, the stirring plates are arranged at an angle, one end of the stirring plate is welded and fixed to the main shaft, and the other end is welded and fixed to the scraper. A fixing block is also provided on the right end face of the sealing cover at the position corresponding to the main shaft.

[0019] In this invention, when the motor is connected to an external power source and the control switch is activated, the output shaft of the motor rotates, driving the main shaft to rotate. With the cooperation of the scraper and the stirring plate, the lost foam sand inside the cylinder that needs to be cooled is cooled in the cold zone. With the cooperation of the fixing block, the main shaft position is locked in place, further increasing the stability of the installation.

[0020] Furthermore, the feed hopper is welded and fixed to the sealing cover, the top of the feed hopper is provided with a top cover, and the top of both ends of the sealing cover are provided with handles.

[0021] In this invention, the feeding hopper facilitates the continuous addition of lost foam sand to the external casting mold, and the sealing cap seals the feeding hopper, reducing the need for internal sealing when no material needs to be added, thus minimizing the impact of the external environment on the interior. Two pull handles provide leverage points, making it easier to lift and open the sealing cap.

[0022] In addition, the bottom of the cooling box is welded and fixed to the top of the sealing cover, the interior of the cooling chamber is connected to the interior space of the cylinder, the width of the top outer wall of the semiconductor refrigeration chip is adapted to the width of the top outer wall of the cooling box, and the semiconductor refrigeration chip is fixedly connected to the top of the cooling box by screws.

[0023] In this invention, when current flows through a thermocouple pair formed by connecting an N-type semiconductor material and a P-type semiconductor material, heat transfer occurs between the two ends of the semiconductor refrigeration chip. The heat is transferred from one end to the other, creating a temperature difference that forms hot and cold ends. The hot end of the semiconductor refrigeration chip is located on the outer side of the cooling chamber, while the cold end is located inside the cooling chamber. This achieves external heat dissipation and internal cooling of the cooling chamber. The semiconductor refrigeration chip is connected to an external power source via wires. A control switch on the outer wall of the semiconductor refrigeration chip is activated to enable its operation. The space formed between the interior of the cooling chamber, the cylinder, and the sealing cover is interconnected, providing secondary cooling for the interior and further cooling the lost foam sand.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. This utility model combines a cylinder and a sealing cover, and inserts them into a cooling box. The water storage tank at the bottom of the cooling box is filled with coolant to initially cool the cylinder. The feeding hopper on the sealing cover helps to continuously add lost foam sand that needs to be cooled. The cooling box works with a semiconductor cooling chip to cool the space between the cylinder and the sealing cover a second time. This double-layer cooling reduces the time the mold sand occupies in the cold zone.

[0026] 2. This utility model, by setting a base plate and cooperating with an inclined cooling box, facilitates the centralized discharge of coolant in the water storage tank with the help of a drain pipe, and replenishes new coolant with a water inlet pipe, which facilitates the rapid replacement of coolant. The overall inclination, in conjunction with the discharge pipe, helps to concentrate the discharge of the mold sand after cooling inside the cylinder. When the motor is powered on, the main shaft rotates and drives the scraper and the stirring plate to increase the cooling and temperature reduction of the lost foam sand inside. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the sealing cap removal structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the cooling box structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the sealing cap structure of this utility model;

[0031] Figure 5This is a schematic diagram of the combined structure of the cylinder and the motor of this utility model;

[0032] Figure 6 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0033] The meanings of the labels in the diagram are as follows:

[0034] 1. Cooling tank; 10. Base plate; 100. Support block; 11. Drain pipe; 12. Water inlet pipe; 13. Water storage tank; 14. Slot; 15. Limiting ring;

[0035] 2. Cylinder; 20. First locking block; 200. Screw hole; 21. Discharge pipe; 22. Sealing bolt; 220. Tightening handle;

[0036] 3. Sealing cap; 30. Second locking block; 300. Perforation; 301. Fastening bolt; 31. Pull handle; 32. Fixing block;

[0037] 4. Feed hopper; 40. Top cover;

[0038] 5. Cooling chamber; 50. Cooling compartment; 51. Semiconductor refrigeration chip;

[0039] 6. Motor; 60. Main shaft; 601. Scraper; 602. Tilting plate. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figures 1-6 This embodiment provides a technical solution:

[0042] A cooling mechanism for a lost foam sand regeneration treatment device includes a cooling box 1, a water storage tank 13 inside the cooling box 1, a base plate 10 at the bottom of the cooling box 1, the cross-section of the base plate 10 being a right-angled trapezoid, the cooling box 1 being inclined as a whole, and the bottom of the cooling box 1 being welded and fixed to the top of the base plate 10, with support blocks 100 provided on the lower surface of the base plate 10 near the corners.

[0043] In this utility model, with the base plate 10 with support block 100, the cooling box 1 is lifted up as a whole, which increases the stability of the whole independent placement. The cooling box 1 is tilted and the right end is higher than the left end, which helps the internal coolant to flow from the right end to the left end, which facilitates drainage. The internally cooled lost foam sand is discharged from the right end to the left end, which helps to concentrate the discharge.

[0044] Furthermore, a drain pipe 11 connected to a water storage tank 13 is provided near the left corner of the front end face of the cooling tank 1, and a water inlet pipe 12 connected to a water storage tank 13 is provided near the top of the right end face of the cooling tank 1. Both the drain pipe 11 and the water inlet pipe 12 are provided with sealing plugs at their ends, and the water storage tank 13 is filled with coolant.

[0045] In this invention, the water storage tank 13 facilitates the storage of coolant, and the coolant contacts the cylinder 2 to achieve internal cooling, thereby achieving cooling of the lost foam sand. The water inlet pipe 12 facilitates the introduction of coolant into the water storage tank 13, and the drain pipe 11 facilitates the replacement of the internal coolant. The sealing plug facilitates manual opening or sealing.

[0046] It should be noted that the cooling box 1 has an opening at the top, and a cylinder 2 is provided at the opening. The cylinder 2 has first locking blocks 20 on both sides. The top of the cooling box 1 has a locking groove 14 corresponding to the first locking blocks 20. The top of the cooling box 1 is also provided with a limiting ring 15 near the opening. The right end of the cooling box 1 is provided with a motor 6. The output shaft of the motor 6 is coaxially connected to a main shaft 60. The main shaft 60 extends into the cylinder 2. The main shaft 60 is provided with a scraper 601. Several stirring plates 602 are provided between the scraper 601 and the main shaft 60. The motor 6 is fixedly connected to the cooling box 1 by screws. The scraper 601 is U-shaped. The outer wall of the scraper 601 is tightly attached to the inner wall of the cylinder 2. The stirring plates 602 are rectangular and arranged at an angle. One end of the stirring plate 602 is welded and fixed to the main shaft 60, and the other end is welded and fixed to the scraper 601. The right end of the sealing cover 3 is also provided with a fixing block 32 corresponding to the main shaft 60.

[0047] In this utility model, when the motor 6 is connected to an external power source and the control switch is activated, the output shaft of the motor 6 rotates, driving the main shaft 60 to rotate. With the cooperation of the scraper 601 and the stirring plate 602, the lost foam sand inside the cylinder 2 that needs to be cooled is cooled in the cold zone. With the cooperation of the fixing block 32, the main shaft 60 is engaged, further increasing the stability of the installation.

[0048] Furthermore, a sealing cover 3 is provided on the top of the cylinder 2, and a second locking block 30 is provided at the bottom of the sealing cover 3 corresponding to the first locking block 20. The first locking block 20 and the cylinder 2 are integrally formed. The width of the outer wall of the first locking block 20 is adapted to the width of the inner wall of the slot 14. A discharge pipe 21 communicating with the inside of the cylinder 2 is provided near the bottom on the left end face of the cylinder 2. The discharge pipe 21 extends out of the cooling box 1, and a sealing bolt 22 is provided at the end of the discharge pipe 21. A handle 220 is provided at the end of the sealing bolt 22.

[0049] In this utility model, the first locking block 20 is inserted into the locking slot 14 to realize the quick assembly of the cylinder 2 and the cooling box 1. With the cooperation of the discharge pipe 21, it is convenient to concentrate the discharge of lost foam sand inside. The handle 220 increases the friction force. The sealing bolt 22 is threadedly connected to the end of the discharge pipe 21 to achieve stable sealing.

[0050] Specifically, the second locking block 30 and the sealing cover 3 are integrally formed structures. The width of the outer wall of the second locking block 30 is adapted to the width of the outer wall of the first locking block 20. The bottom of the limiting ring 15 is welded and fixed to the cooling box 1. The width of the inner wall of the limiting ring 15 is adapted to the width of the outer wall of the first locking block 20.

[0051] In this utility model, the second locking block 30 and the limiting ring 15 are inserted and matched to realize the corresponding insertion and installation of the sealing cover 3 and the cylinder 2, thereby increasing the tightness of the assembly.

[0052] It is worth noting that the second locking block 30 has through holes 300 at both ends, and fastening bolts 301 are installed in the through holes 300. The first locking block 20 has screw holes 200 at the corresponding positions of the through holes 300.

[0053] In this utility model, the fastening bolt 301 passes through the through hole 300 and is threadedly connected to the screw hole 200, which increases the stability of the combination of the sealing cover 3 and the cylinder 2 and prevents it from opening during cooling use, thus affecting the fit of the internal cold zone.

[0054] Furthermore, a feed hopper 4 is provided at the top of the sealing cover 3 near the left end. The feed hopper 4 is welded and fixed to the sealing cover 3. A top cover 40 is provided at the top of the feed hopper 4. A handle 31 is provided at the top of both ends of the sealing cover 3.

[0055] In this utility model, the feeding hopper 4 facilitates the continuous addition of lost foam sand to the external casting mold, and the sealing cover 3 seals the feeding hopper 4, reducing the need for internal sealing when no material needs to be added, thus reducing the impact of the external environment on the interior. Two handles 31 are provided to provide leverage points, which helps to lift and open the sealing cover 3.

[0056] Secondly, a cooling box 5 is provided at the top of the sealing cover 3 near the right end, a cooling chamber 50 is provided on the top of the cooling box 5, and a semiconductor cooling chip 51 is provided on the top of the cooling chamber 50.

[0057] In addition, the bottom of the cooling chamber 5 is welded and fixed to the top of the sealing cover 3, the interior of the cooling chamber 50 is connected to the interior space of the cylinder 2, the width of the outer wall of the top of the semiconductor refrigeration chip 51 is adapted to the width of the outer wall of the top of the cooling chamber 5, and the semiconductor refrigeration chip 51 is fixedly connected to the top of the cooling chamber 5 by screws.

[0058] In this invention, when current flows through the thermocouple pair formed by connecting an N-type semiconductor material and a P-type semiconductor material, heat transfer occurs between the two ends of the semiconductor refrigeration chip 51. The heat is transferred from one end to the other, thus creating a temperature difference and forming hot and cold ends. The hot end of the semiconductor refrigeration chip 51 is located on the outer side of the cooling box 5, and the cold end of the semiconductor refrigeration chip 51 is located inside the cooling box 5, realizing external heat dissipation and internal cooling of the cooling box 5. The semiconductor refrigeration chip 51 is connected to an external power source through wires. When the control switch on the outer wall of the semiconductor refrigeration chip 51 is activated, the semiconductor refrigeration chip 51 is put into operation. The space formed between the interior of the cooling box 5, the cylinder 2, and the sealing cover 3 is connected, which provides secondary cooling for the interior and further cools the lost foam sand.

[0059] In this embodiment, when the cooling mechanism of the lost foam sand regeneration equipment is in use, the user first connects the discharge pipe 21 with the sealing bolt 22 to the cylinder 2 with the first locking block 20. The cylinder 2 is inserted into the slot 14 through the first locking block 20. The motor 6 is fixed on the cooling box 1. The main shaft 60 with the scraper 601 and the stirring plate 602 extends into the cylinder 2. Then, the sealing cover 3 with the feed hopper 4 and the cooling box 5 is inserted into the limiting ring 15 through the second locking block 30. The fastening bolt 301 passes through the through hole 300 and is threaded into the screw hole 200 to realize the combination and fixation of the sealing cover 3 and the cylinder 2.

[0060] The coolant to be filled is manually poured from the inlet pipe 12 into the water storage tank 13. The ends of the inlet pipe 12 and the drain pipe 11 are then sealed. The motor 6 is connected to an external power source, and the control switch on the outer wall of the motor 6 is activated. The main shaft 60 rotates, driving the scraper 601 and the stirring plate 602 to rotate continuously. The semiconductor cooling chip 51 is connected to an external power source through wires, and the cold end cools the cooling box 5, thereby cooling the inside of the cylinder 2. The lost foam sand to be cooled is then guided into the space between the cylinder 2 and the sealing cover 3 through the feed hopper 4. The cooling is achieved by the coolant and the semiconductor cooling chip 51, which cools the internal space, thus achieving double-layer cooling and shortening the time required for natural cooling. After cooling is completed, the sealing bolt 22 is manually unscrewed, and the rotation of the main shaft 60 of the motor 6 pushes the internal material out of the discharge pipe 21. The overall assembly is convenient to install and easy to operate manually.

Claims

1. A cooling mechanism for a lost foam sand regeneration treatment device, comprising a cooling tank (1), characterized in that: The cooling box (1) has a water storage tank (13) inside. The top of the cooling box (1) has an opening, and a cylinder (2) is provided at the opening. First locking blocks (20) are provided on both sides of the cylinder (2). A locking groove (14) is provided on the top of the cooling box (1) corresponding to the first locking blocks (20). A limiting ring (15) is also provided on the top of the cooling box (1) near the opening. A motor (6) is provided at the right end of the cooling box (1). The output shaft of the motor (6) is coaxially connected to a main shaft (60). The main shaft (60) extends into the cylinder (2). A scraper (601) is provided on the shaft (60), and several stirring plates (602) are provided between the scraper (601) and the main shaft (60). A sealing cover (3) is provided above the cylinder (2). A second locking block (30) is provided at the bottom of the sealing cover (3) corresponding to the first locking block (20). A feed hopper (4) is provided at the top of the sealing cover (3) near the left end. A cooling box (5) is provided at the top of the sealing cover (3) near the right end. A cooling chamber (50) is opened at the top of the cooling box (5). A semiconductor cooling chip (51) is provided at the top of the cooling chamber (50).

2. The cooling mechanism of the lost foam sand regeneration equipment according to claim 1, characterized in that: The cooling box (1) is provided with a base plate (10) at the bottom. The cross-section of the base plate (10) is a right trapezoid. The cooling box (1) is tilted as a whole. The bottom of the cooling box (1) is welded and fixed to the top of the base plate (10). Support blocks (100) are provided on the lower surface of the base plate (10) near the corner.

3. The cooling mechanism of the lost foam sand regeneration equipment according to claim 1, characterized in that: The front end of the cooling box (1) is provided with a drain pipe (11) connected to the water storage tank (13) near the left corner. The right end of the cooling box (1) is provided with a water inlet pipe (12) connected to the water storage tank (13) near the top. Both the drain pipe (11) and the water inlet pipe (12) are provided with sealing plugs. The water storage tank (13) is filled with coolant.

4. The cooling mechanism of the lost foam sand regeneration equipment according to claim 1, characterized in that: The first card block (20) and the cylinder (2) are integrally formed. The width of the outer wall of the first card block (20) is adapted to the width of the inner wall of the card slot (14). The cylinder (2) has a discharge pipe (21) that communicates with the inside of the cylinder (2) near the bottom on the left end face. The discharge pipe (21) extends out of the cooling box (1) and the end of the discharge pipe (21) is provided with a sealing bolt (22). The end of the sealing bolt (22) is provided with a handle (220).

5. The cooling mechanism of the lost foam sand regeneration equipment according to claim 1, characterized in that: The second card block (30) and the sealing cover (3) are integrally formed. The width of the outer wall of the second card block (30) is adapted to the width of the outer wall of the first card block (20). The bottom of the limiting ring (15) is welded and fixed to the cooling box (1). The width of the inner wall of the limiting ring (15) is adapted to the width of the outer wall of the first card block (20).

6. The cooling mechanism of the lost foam sand regeneration equipment according to claim 5, characterized in that: The second card block (30) has through holes (300) at both ends, and fastening bolts (301) are provided in the through holes (300). The first card block (20) has screw holes (200) at the corresponding positions of the through holes (300).

7. The cooling mechanism of the lost foam sand regeneration equipment according to claim 1, characterized in that: The motor (6) is fixedly connected to the cooling box (1) by screws. The scraper (601) is U-shaped. The outer wall of the scraper (601) is tightly attached to the inner wall of the cylinder (2). The stirring plate (602) is rectangular. The stirring plate (602) is arranged at an angle. One end of the stirring plate (602) is welded and fixed to the main shaft (60), and the other end is welded and fixed to the scraper (601). A fixing block (32) is also provided on the right end face of the sealing cover (3) at the position corresponding to the main shaft (60).

8. The cooling mechanism of the lost foam sand regeneration equipment according to claim 1, characterized in that: The feed hopper (4) is welded and fixed to the sealing cover (3). The top of the feed hopper (4) is provided with a top cover (40), and the top of both ends of the sealing cover (3) are provided with handles (31).

9. The cooling mechanism of the lost foam sand regeneration equipment according to claim 1, characterized in that: The bottom of the cooling box (5) is welded and fixed to the top of the sealing cover (3). The interior of the cooling chamber (50) is connected to the interior space of the cylinder (2). The width of the outer wall of the top of the semiconductor cooling chip (51) is adapted to the width of the outer wall of the top of the cooling box (5). The semiconductor cooling chip (51) is fixedly connected to the top of the cooling box (5) by screws.

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