Sand bed cooling device

Abstract

The invention relates to the field of full mold casting, in particular to a sand bed cooling device which is characterized in that a sand box is placed by arranging a sand bed frame, ventilation steel pipes are uniformly arranged by arranging grids in the sand bed frame, and one ends of the two ventilation steel pipes are connected with a ventilation hose through a connector, so that an air cooler is utilized to the maximum extent; the ventilation hose is arranged on the air outlet of the air cooler, and the air cooler can slide, so that the air cooler can be moved according to requirements, the ventilation hose of the air cooler is connected with the ventilation steel pipe in the sand bed according to requirements, and a specified position can be cooled; the sand bed frame is filled with the dry sand, so that the air permeability is better, heat dissipation is easier, the dry sand is soft, the sand box is not prone to deformation, the sand box is placed more stably, the fit degree of the dry sand and the sand box is better, and water leakage of a bottom net is not prone to being prevented. And the distance between the grids and the top end of the sand bed frame is 50mm, so that the sand box bottom net is prevented from being contacted with the grids of the sand bed frame to crush the grids.

Description

Technical Field

[0001] The invention relates to the field of full-mold casting, and in particular to a sand bed cooling device. Background Art

[0002] Full mold casting refers to a method of casting in which a polystyrene foam plastic mold is used instead of an ordinary mold. After the mold is made, molten metal is poured into it without removing the mold. Under the action of the molten metal, the plastic mold burns, vaporizes, and disappears. The molten metal replaces the space occupied by the original plastic mold. After cooling and solidification, the desired casting is obtained. A sand box is required in the pouring process. A large amount of heat will be generated during the pouring process. During the cooling process, the bottom of the sand box is in contact with the ground, and the heat dissipation effect is far worse than other surfaces in contact with the air, resulting in uneven heat dissipation and abnormal castings. Therefore, a sand bed is needed to cool the sand box. At present, the sand bed is large in size, and an air cooler is needed to cool the sand bed. The space in the pouring workshop is limited, and it is impossible to set up multiple air coolers for cooling operations. In addition, the cooling uniformity needs to be ensured. Therefore, it is very important to solve this problem. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a sand bed cooling device to solve the problems arising in the background technology.

[0004] Based on the above-mentioned purpose, the present invention provides a sand bed cooling device, including a sand bed frame, a grid is arranged in the sand bed frame, ventilation steel pipes are uniformly distributed laterally in the grid, every two ventilation steel pipes constitute a group, and one end of each group of ventilation steel pipes passes through the sand bed frame and is connected to an interface; a slidable air cooler is arranged on one side of the interface of the sand bed frame, an air outlet is arranged at one end of the air cooler, the air outlet is connected to six ventilation hoses, and the six ventilation hoses are detachably connected to six interfaces respectively; the sand bed frame is filled with dry sand, and the spacing between the top of the sand bed frame and the grid is 50 mm; a recovery box is arranged on one side of the sand bed frame at the other end of the ventilation steel pipe, and a solenoid valve is arranged at the other end of the ventilation steel pipe and extends into the recovery box.

[0005] Preferably, a transverse sliding rod is arranged on the ground of the sand bed frame on one side of the air cooler, and the bottom of the air cooler is slidingly arranged on the sliding rod.

[0006] Preferably, bases are provided at both ends of the sliding rod, and a threaded rod is rotatably provided between the two bases. A threaded block is provided on one side of the air cooler, and a threaded hole matching the thread on the surface of the threaded rod is penetrated through the threaded block, and the thread of the threaded rod penetrates through the threaded hole; a servo motor is provided on one of the bases, and the output end of the servo motor is fixedly connected to one end of the threaded rod; a rotating bearing is provided on the side of one of the bases, and the other end of the threaded rod is connected to the rotating bearing.

[0007] Preferably, the ends of the six ventilation hoses are commonly provided with a hard liftable movable rod, the ends of the ventilation hoses horizontally pass through the movable rod and are downwardly connected with a hard connecting head, the spacing between each connecting head is equal to the spacing between each interface, the surface of the connecting head has a sealing ring and is inserted into the interface; the top of the movable block is connected to the output end of the longitudinal cylinder, and the longitudinal cylinder is arranged on the top of the air cooler.

[0008] Preferably, the output end of the top of the longitudinal cylinder is connected to a T-shaped rod, connecting rods are provided at both ends of the T-shaped rod, and the two connecting rods are respectively connected to the two ends of the moving rod; a limiting column is provided on the top of the air cooler, and the longitudinal sliding sleeve of the T-shaped rod is provided outside the limiting column.

[0009] Preferably, the recovery tank is connected to an air heat exchanger via a hose.

[0010] Preferably, the grid is in a tic-tac-toe shape, and the ventilation steel pipe is inserted through the grid.

[0011] Preferably, a temperature sensor is provided on the outer wall of the ventilation steel pipe, the temperature sensor is electrically connected to a controller, and the air cooler, the servo motor and the longitudinal cylinder are electrically connected to the controller.

[0012] The beneficial effects of the present invention are as follows: the present invention places the sand box by setting a sand bed frame, and evenly sets the ventilation steel pipes by setting a grid in the sand bed frame. One end of the two ventilation steel pipes is connected to a ventilation hose through an interface, so that the air cooler is utilized to the maximum extent. The ventilation hose is set on the air outlet of the air cooler, and the air cooler can slide, so that the air cooler can be moved according to needs, so that the ventilation hose of the air cooler is connected to the ventilation steel pipe in the sand bed according to needs, so that the designated position can be cooled; the sand bed frame is filled with dry sand, which has better air permeability and is easier to dissipate heat. The dry sand is soft, the sand box is not easy to deform, and the sand box is placed more stably. The dry sand fits the sand box better, and it is not easy to prevent water leakage from the bottom net; and the grid is 50mm away from the top of the sand bed frame, so as to avoid the sand box bottom net and the sand bed frame grid from contacting and crushing the grid; the air cooler of the present invention slides on the sliding rod, and the air cooler is threadedly connected to the threaded rod through a threaded block, and the threaded rod is driven to rotate by a servo motor to drive the air cooler to slide on the sliding rod. The six ventilation hoses of the air cooler of the present invention are provided with a movable rod that can be lifted and lowered. The longitudinal cylinder at the top of the air cooler is started. The longitudinal cylinder is connected to the movable rod through a T-shaped rod and a connecting rod, so that the longitudinal cylinder drives the movable rod to lift and lower. The end of the ventilation hose is plugged into the interface through a hard connector, so that the lifting of the movable rod can realize the plugging and disassembly of the ventilation hose and the ventilation steel pipe. The other end of the ventilation steel pipe extends into the recovery box and is provided with a solenoid valve, so that the hot air can be recovered to the air heat exchanger through the recovery box for heat exchange treatment, and the heat can be recycled. The present invention sets a temperature sensor on the outer wall of the steel pipe to sense the temperature, and transmits a signal to the controller when the temperature is low. The controller controls the servo motor to move the air cooler to the corresponding position. The controller continues to control the longitudinal cylinder to drive the movable rod to descend, so that the connector of the ventilation hose is plugged into the interface of the ventilation steel pipe, and then the air cooler is started to blow cold air to cool the sand bed frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the sand bed frame and the cooling fan of the present invention; Figure 2 is a top view of the air cooler of the present invention; Figure 3 is a side view of the air cooler of the present invention; Figure 4 is a top view of the recycling bin of the present invention; Figure 5 It is a block diagram of the working principle of the present invention.

[0015] The markings in the figure are: 1-sand bed frame, 2-grid, 3-ventilation steel pipe, 4-interface, 5-cooling fan, 6-ventilation hose, 7-sliding rod, 8-base, 9-threaded rod, 10-threaded block, 11-servo motor, 12-rotating bearing, 13-moving rod, 14-connecting head, 15-longitudinal cylinder, 16-T-rod, 17-connecting rod, 18-limiting column, 19-recycling box. DETAILED DESCRIPTION

[0016] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0017] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] like Figures 1 to 3As shown, a sand bed cooling device includes a sand bed frame 1, a grid 2 is arranged in the sand bed frame 1, ventilation steel pipes 3 are evenly distributed in the grid 2, the grid 2 is in a tic-tac-toe shape, and the ventilation steel pipes 3 are inserted through the grid 2; every two ventilation steel pipes 3 form a group, and one end of each group of ventilation steel pipes 3 passes through the sand bed frame 1 and is connected to an interface 4; the sand bed frame 1 is provided with a slidable cold air fan 5 on one side of the interface 4, and an air outlet is arranged at one end of the cold air fan 5, and the air outlet is connected to six ventilation hoses 6, and the six ventilation hoses 6 are detachably connected to the six interfaces 4 respectively; the sand bed frame 1 is filled with dry sand, and the distance between the top of the sand bed frame 1 and the grid 2 is 50 mm. A sand box is placed by setting a sand bed frame 1, and ventilation steel pipes 3 are evenly set by setting a grid 2 in the sand bed frame 1. One end of the two ventilation steel pipes 3 is connected to a ventilation hose 6 through an interface 4, so that the air cooler 5 is utilized to the maximum extent. The ventilation hose 6 is set on the air outlet of the air cooler 5, and the air cooler 5 can slide, so that the air cooler 5 can be moved as needed, so that the ventilation hose 6 of the air cooler is connected to the ventilation steel pipe 3 in the sand bed 1 as needed, so that the designated position can be cooled; the sand bed frame 1 is filled with dry sand, which has better air permeability and is easier to dissipate heat. The dry sand is soft, the sand box is not easy to deform, and the sand box is placed more stably. The dry sand fits the sand box better, and it is not easy to prevent water leakage from the bottom net; and the grid 2 is 50mm away from the top of the sand bed frame 1, so as to avoid the sand box bottom net from contacting and crushing the grid 2 of the sand bed frame 1.

[0019] The sand bed frame 1 is provided with a horizontal sliding rod 7 on the ground at one side of the air cooler 5, and the bottom of the air cooler 5 is slidingly provided on the sliding rod 7. Bases 8 are provided at both ends of the sliding rod 7, and a threaded rod 9 is rotatably provided between the two bases 8. A threaded block 10 is provided on one side of the air cooler 5, and a threaded hole matching the threaded surface of the threaded rod 9 is penetrated in the threaded block 10, and the threaded rod 9 thread penetrates the threaded hole; a servo motor 11 is provided on one of the bases 8, and the output end of the servo motor 11 is fixedly connected to one end of the threaded rod 9, and a rotating bearing 12 is provided on the side of one of the bases 8, and the other end of the threaded rod 9 is connected to the rotating bearing 12. The air cooler 5 slides on the sliding rod 7, and the air cooler 5 is threadedly connected to the threaded rod 9 through the threaded block 10, and the threaded rod 9 is driven to rotate by the servo motor 11, thereby driving the air cooler 5 to slide on the sliding rod 7.

[0020] The ends of the six ventilation hoses 6 are commonly provided with a hard movable rod 13 that can be raised and lowered. The ends of the ventilation hoses 6 pass horizontally through the movable rod 13 and are connected downward with a hard connector 14. The spacing between the connectors 14 is equal to the spacing between the interfaces 4. The connector 14 has a sealing ring on its surface and fits into the interface 4. The top of the movable block 13 is connected with the output end of the longitudinal cylinder 15, which is arranged on the top of the air cooler 5. The output end of the top of the longitudinal cylinder 15 is connected with a T-shaped rod 16, and connecting rods 17 are arranged at both ends of the T-shaped rod 16. The two connecting rods 17 are respectively connected to the two ends of the movable rod 13. A limiting column 18 is arranged on the top of the air cooler 5, and the T-shaped rod 16 is longitudinally slidably sleeved outside the limiting column 18. The six ventilation hoses 6 of the air cooler 5 are jointly provided with a movable rod 13 that can be raised and lowered. The longitudinal cylinder 15 on the top of the air cooler 5 is started, and the longitudinal cylinder 15 is connected to the movable rod 13 through a T-shaped rod 16 and a connecting rod 17, so that the longitudinal cylinder 15 drives the movable rod 13 to be raised and lowered, and the end of the ventilation hose 6 is connected to the interface 4 through a hard connecting head 14, so that the lifting and lowering of the movable rod 13 can realize the connection and disassembly of the ventilation hose 6 and the ventilation steel pipe 3.

[0021] A recovery box 19 is provided on one side of the sand bed frame 1 at the other end of the ventilation steel pipe 3. A solenoid valve is provided at the other end of the ventilation steel pipe 3 and extends into the recovery box 19. The recovery box 19 is connected to an air heat exchanger through a hose. The other end of the ventilation steel pipe 3 extends into the recovery box 19 and is provided with a solenoid valve, so that hot air can be recovered through the recovery box 19 to the air heat exchanger for heat exchange treatment, and the heat can be recycled.

[0022] The outer wall of the ventilation steel pipe 3 is provided with a temperature sensor, which is electrically connected to the controller, and the air cooler 5, the servo motor 11 and the longitudinal cylinder 15 are electrically connected to the controller. The temperature is sensed by the temperature sensor provided on the outer wall of the steel pipe 3, and a signal is transmitted to the controller when the temperature is low. The controller controls the servo motor 11 to move the air cooler 5 to the corresponding position, and the controller continues to control the longitudinal cylinder 15 to drive the moving rod 13 to descend, so that the connector 14 of the ventilation hose 6 is plugged into the interface 4 of the ventilation steel pipe 3, and then the air cooler 5 is started to blow cold air to cool the sand bed frame 1.

[0023] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A sand bed cooling device, comprising a sand bed frame (1), characterized in that: The sand bed frame (1) is provided with a grid (2), and ventilation steel pipes (3) are evenly distributed in the grid (2) in the transverse direction, and every two ventilation steel pipes (3) form a group, and one end of each group of ventilation steel pipes (3) passes through the sand bed frame (1) and is connected to an interface (4); the sand bed frame (1) is provided with a slidable cooling fan (5) at one side of the interface (4), and an air outlet is provided at one end of the cooling fan (5), and the air outlet is connected to six ventilation hoses (6), and the six ventilation hoses (6) are detachably connected to the six interfaces (4) respectively; the sand bed frame (1) is filled with dry sand, and the distance between the top of the sand bed frame (1) and the grid (2) is 50 mm; the sand bed frame (1) is provided with a recovery box (19) at one side of the other end of the ventilation steel pipe (3), and the other end of the ventilation steel pipe (3) is provided with a solenoid valve and extends into the recovery box (19).

2. A sand bed cooling device according to claim 1, characterized in that: The sand bed frame (1) is provided with a transverse sliding rod (7) on the ground at one side of the air cooler (5), and the bottom of the air cooler (5) is slidably arranged on the sliding rod (7).

3. A sand bed cooling device according to claim 2, characterized in that: Bases (8) are provided at both ends of the sliding rod (7), a threaded rod (9) is rotatably provided between the two bases (8), a threaded block (10) is provided on one side of the air cooler (5), a threaded hole matching the thread on the surface of the threaded rod (9) is penetrated through the threaded block (10), and the thread of the threaded rod (9) penetrates through the threaded hole; a servo motor (11) is provided on one of the bases (8), the output end of the servo motor (11) is fixedly connected to one end of the threaded rod (9), a rotary bearing (12) is provided on the side of one of the bases (8), and the other end of the threaded rod (9) is connected to the rotary bearing (12).

4. A sand bed cooling device according to claim 3, characterized in that: The ends of the six ventilation hoses (6) are commonly provided with a hard movable rod (13) that can be raised and lowered. The ends of the ventilation hoses (6) pass horizontally through the movable rod (13) and are downwardly connected to a hard connector (14). The spacing between two connectors (14) is equal to the spacing between two interfaces (4). The surfaces of the connectors (14) have sealing rings and fit into the interfaces (4). The top of the movable block (13) is connected to the output end of a longitudinal cylinder (15), and the longitudinal cylinder (15) is arranged on the top of the air cooler (5).

5. A sand bed cooling device according to claim 4, characterized in that: The output end at the top of the longitudinal cylinder (15) is connected to a T-shaped rod (16), and connecting rods (17) are provided at both ends of the T-shaped rod (16). The two connecting rods (17) are respectively connected to the two ends of the moving rod (13); a limiting column (18) is provided at the top of the air cooler (5), and the longitudinal sliding sleeve of the T-shaped rod (16) is arranged outside the limiting column (18).

6. The sand bed cooling device according to claim 1, characterized in that: The recovery box (19) is connected to an air heat exchanger via a hose.

7. The sand bed cooling device according to claim 1, characterized in that: The grid (2) is in a tic-tac-toe shape, and the ventilation steel pipe (3) is inserted through the grid (2).

8. The sand bed cooling device according to claim 5, characterized in that: The outer wall of the ventilation steel pipe (3) is provided with a temperature sensor, the temperature sensor is electrically connected to a controller, and the air cooler (5), the servo motor (11) and the longitudinal cylinder (15) are electrically connected to the controller.

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