Sand treatment cooling device for lost foam castings

Abstract

The utility model belongs to sand cooling device technical field, specifically is a kind of sand treatment cooling device of lost foam casting, including first rotary tank;First rotary tank top is equipped with feed inlet;Motor is fixedly connected above the first rotary tank;The support shaft is fixedly connected at the motor output end;The push rod is fixedly connected in the middle of the support shaft;First support frame is equipped in the first rotary tank;The diameter of first support frame is less than the inner diameter of first rotary tank;This step is cooled and handled to foundry sand by being equipped with first rotary tank, feed inlet and air cooler, by being equipped with motor, support shaft, push rod, first support frame and sieve, when cooling foundry sand, make foundry sand move inside first support frame, to further reduce foundry sand accumulation in the top of first support frame, cause the cooling effect of the surface layer and internal of foundry sand not the case, make the temperature of foundry sand more uniform, to further improve the cooling effect of foundry sand.

Description

Technical Field

[0001] This utility model belongs to the technical field of sand cooling devices, specifically a sand treatment and cooling device for lost foam castings. Background Technology

[0002] Lost foam casting is a casting method in which the model disappears during the casting process. It is also known as vaporized foam casting or lost foam casting. It belongs to the category of evaporative casting. This method mainly uses polystyrene foam molds as casting master molds. It is known for its high casting precision and smooth surface, and can cast thin-walled, complex-shaped and high-precision castings.

[0003] In existing technologies, lost foam casting typically uses dry sand as molding sand. When molding the workpiece, the casting sand often heats up. In continuous mass production, the temperature of the casting sand affects the subsequent production efficiency and the quality of the produced products. Therefore, after the workpiece is molded, the casting sand often needs to be cooled down before it can be reused.

[0004] Through long-term use and observation, it has been found that the current method of cooling foundry sand often uses a drum cooler. While the drum is rotating, air is blown into the sand guide channel to cool the foundry sand inside the drum. After long-term use, this cooling method often results in the drum temperature rising because the temperature of the foundry sand is conducted to the drum, which affects the cooling effect of the foundry sand and the cooling quality and efficiency.

[0005] Therefore, this utility model provides a sand treatment and cooling device for lost foam castings. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, a sand treatment and cooling device for lost foam castings is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A sand treatment and cooling device for lost foam castings, comprising a first rotating groove; a feed inlet is provided at the top of the first rotating groove; a motor is fixedly connected above the first rotating groove; a support shaft is fixedly connected to the output end of the motor; a push rod is fixedly connected to the middle of the support shaft; a first support frame is provided inside the first rotating groove; the diameter of the first support frame is smaller than the inner diameter of the first rotating groove; a sieve is fixedly connected to the middle of the first support frame. This step, by providing a first rotating groove, a feed inlet, and a cooling fan, can cool the casting sand. By providing a motor, a support shaft, a push rod, a first support frame, and a sieve, the casting sand can move inside the first support frame during cooling, thereby reducing the accumulation of casting sand on the top of the first support frame and preventing uneven cooling between the surface and interior of the casting sand, resulting in a more uniform temperature of the casting sand and thus improving the cooling effect.

[0008] Preferably, a dispersing plate is fixedly connected to the middle of the support shaft; there are multiple dispersing plates distributed in a ring in the middle of the support shaft; by providing the dispersing plates, this step can first disperse the clumps of casting sand when the casting sand enters the first support frame, further reducing the occurrence of clumps in the casting sand and causing uneven cooling effects on the surface and inside of the casting sand, and further improving the cooling effect on the casting sand.

[0009] Preferably, the dispersing plate has through holes in the middle; there are multiple through holes and they are evenly distributed in the middle of the dispersing plate; by providing through holes, this step allows the workers to pass through the dispersing plate more evenly, thereby further dispersing the agglomerated casting sand, further reducing the occurrence of agglomerated casting sand, which would cause uneven cooling effects on the surface and inside of the casting sand, and further improving the cooling effect on the casting sand.

[0010] Preferably, the bottom of the first support frame is provided with a rolling groove; a ball bearing is provided in the middle of the rolling groove; there are multiple balls evenly distributed in the middle of the rolling groove; by providing the rolling groove and the balls, this step can change the sliding contact between the bottom of the first support frame and the bottom of the inner sidewall of the first rotating groove into a rolling contact with the sidewall of the balls, thereby reducing the friction when the bottom of the first support frame contacts the bottom of the inner sidewall of the first rotating groove, thereby reducing the wear when the bottom of the first support frame contacts the bottom of the inner sidewall of the first rotating groove, thereby improving the service life of the device, and allowing the first support frame to move more smoothly along the first rotating groove, improving the stability during the cooling of the casting sand.

[0011] Preferably, a second support frame is fixedly connected to the bottom of the first rotating trough; a collection box is provided in the middle of the second support frame; the collection box and the second support frame are in sliding fit; this step, by providing a second support frame and a collection box, can collect the cooled and screened foundry sand, thereby making it easier for workers to collect and transport the foundry sand, thus reducing the workload of workers and improving their work efficiency.

[0012] Preferably, a second rotating groove is provided at the bottom of the inner sidewall of the second support frame; there are multiple second rotating grooves and they are evenly distributed at the bottom of the inner sidewall of the second support frame; a roller is rotatably connected to the middle of the second rotating groove; by providing the second rotating groove and the roller, this step can change the sliding contact between the bottom of the collection box and the bottom of the inner sidewall of the second support frame into a rolling contact between the bottom of the collection box and the sidewall of the roller, thereby reducing the friction when the bottom of the collection box contacts the bottom of the inner sidewall of the second support frame, thereby reducing the wear when the bottom of the collection box contacts the bottom of the inner sidewall of the second support frame, and further improving the service life of the device.

[0013] The beneficial effects of this utility model are as follows: 1. The sand cooling device for lost foam casting described in this utility model, by providing a first rotating groove, a feed inlet and a cooling fan, can cool the casting sand. By providing a motor, a support shaft, a push rod, a first support frame and a screen, the casting sand can move inside the first support frame during cooling, thereby reducing the accumulation of casting sand on the top of the first support frame and preventing uneven cooling between the surface and the interior of the casting sand, making the temperature of the casting sand more uniform and thus improving the cooling effect of the casting sand.

[0014] 2. The sand treatment and cooling device for lost foam castings described in this utility model, by providing a dispersing plate, can first disperse the agglomerated casting sand when it enters the first support frame, further reducing the occurrence of agglomerated casting sand and causing uneven cooling effects on the surface and interior of the casting sand, thereby further improving the cooling effect on the casting sand. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a sectional view of the present invention; Figure 3 This is a schematic diagram of the support shaft structure in this utility model; Figure 4 This is a cross-sectional view of the first rotating groove in this utility model; Figure 5This is a schematic diagram of the structure of the first support frame in this utility model; Legend: 1. First rotating groove; 11. Feed inlet; 12. Motor; 13. Support shaft; 14. Push rod; 15. First support frame; 16. Screening mesh; 2. Dispersing plate; 3. Through hole; 4. Rolling groove; 41. Ball bearing; 5. Second support frame; 51. Collection box; 6. Second rotating groove; 61. Roller. Detailed Implementation

[0017] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Specific implementation examples are given below.

[0019] like Figures 1 to 4 As shown in the embodiment of this utility model, a sand treatment and cooling device for lost foam casting includes a first rotating groove 1; a feed inlet 11 is provided at the top of the first rotating groove 1; a motor 12 is fixedly connected above the first rotating groove 1; a support shaft 13 is fixedly connected to the output end of the motor 12; a push rod 14 is fixedly connected to the middle of the support shaft 13; a first support frame 15 is provided inside the first rotating groove 1; the diameter of the first support frame 15 is smaller than the inner diameter of the first rotating groove 1; a sieve 16 is fixedly connected to the middle of the first support frame 15; during operation, the operator aligns the air outlet of the cooling fan with the inside of the first rotating groove 1, then starts the motor 12, and then introduces the casting sand that needs to be cooled from the feed inlet 11 into the first rotating groove 1. Inside the first support frame 15, the motor 12 pushes the first support frame 15 through the support shaft 13, thereby moving the first support frame 15 inside the first rotating groove 1. This step, with the first rotating groove 1, the feed inlet 11 and the cooling fan, can cool the casting sand. With the motor 12, the support shaft 13, the push rod 14, the first support frame 15 and the screen 16, the casting sand can move inside the first support frame 15 during cooling, thereby reducing the accumulation of casting sand on the top of the first support frame 15 and preventing uneven cooling between the surface and the interior of the casting sand. This makes the temperature of the casting sand more uniform and improves the cooling effect of the casting sand.

[0020] Furthermore, such as Figures 2 to 4As shown, a dispersing plate 2 is fixedly connected to the middle of the support shaft 13; there are multiple dispersing plates 2 distributed in a ring in the middle of the support shaft 13; during operation, when the worker introduces casting sand into the first support frame 15 from the feed port 11, the dispersing plate 2 will disperse the clumps of casting sand. This step, by providing the dispersing plate 2, can disperse the clumps of casting sand when it enters the first support frame 15, further reducing the occurrence of clumps in the casting sand and causing uneven cooling effects between the surface and the interior of the casting sand, thus further improving the cooling effect on the casting sand.

[0021] Furthermore, such as Figures 2 to 4 As shown, the dispersing plate 2 has through holes 3 in the middle; there are multiple through holes 3 and they are evenly distributed in the middle of the dispersing plate 2; by providing through holes 3, this step allows the workers to pass through the dispersing plate 2 more evenly, thereby further dispersing the agglomerated casting sand, further reducing the occurrence of agglomerated casting sand, and preventing the uneven cooling effect between the surface and the interior of the casting sand, thus further improving the cooling effect on the casting sand.

[0022] Furthermore, such as Figure 2 and Figure 5 As shown, the first support frame 15 has a rolling groove 4 at its bottom; the rolling groove 4 has a ball bearing 41 in the middle; there are multiple balls bearing 41 evenly distributed in the middle of the rolling groove 4; by providing the rolling groove 4 and the balls bearing 41, this step can change the sliding contact between the bottom of the first support frame 15 and the bottom of the inner wall of the first rotating groove 1 into a rolling contact with the side wall of the balls bearing 41, thereby reducing the friction when the bottom of the first support frame 15 contacts the bottom of the inner wall of the first rotating groove 1, thereby reducing the wear when the bottom of the first support frame 15 contacts the bottom of the inner wall of the first rotating groove 1, thereby improving the service life of the device, and allowing the first support frame 15 to move more smoothly along the first rotating groove 1, improving the stability during the cooling of casting sand.

[0023] Furthermore, such as Figure 1 , Figure 2 and Figure 4 As shown, a second support frame 5 is fixedly connected to the bottom of the first rotating groove 1; a collection box 51 is provided in the middle of the second support frame 5; the collection box 51 and the second support frame 5 are in sliding fit; this step, by providing the second support frame 5 and the collection box 51, can collect the casting sand after cooling and screening, thereby making it easier for workers to collect and transport the casting sand, thereby reducing the workload of workers and improving the work efficiency of workers.

[0024] Furthermore, such as Figure 4As shown, a second rotating groove 6 is provided at the bottom of the inner sidewall of the second support frame 5; there are multiple second rotating grooves 6 and they are evenly distributed at the bottom of the inner sidewall of the second support frame 5; a roller 61 is rotatably connected to the middle of the second rotating groove 6; by providing the second rotating groove 6 and the roller 61, this step can change the sliding contact between the bottom of the collection box 51 and the bottom of the inner sidewall of the second support frame 5 into a rolling contact between the bottom of the collection box 51 and the sidewall of the roller 61, thereby reducing the friction when the bottom of the collection box 51 contacts the bottom of the inner sidewall of the second support frame 5, thereby reducing the wear when the bottom of the collection box 51 contacts the bottom of the inner sidewall of the second support frame 5, and further improving the service life of this device.

[0025] Working principle: During operation, the operator aligns the air outlet of the air cooler with the inside of the first rotating groove 1, then starts the motor 12, and then introduces the casting sand that needs to be cooled into the inside of the first support frame 15 through the feed inlet 11. At this time, the motor 12 will push the first support frame 15 through the support shaft 13, thereby causing the first support frame 15 to move inside the first rotating groove 1. When the operator introduces the casting sand into the inside of the first support frame 15 through the feed inlet 11, the dispersing plate 2 will break up the clumps of casting sand.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sand treatment cooling device for lost foam castings, comprising a first rotating tank (1); characterized in that: The first rotating groove (1) has a feed inlet (11) at the top; a motor (12) is fixedly connected above the first rotating groove (1); a support shaft (13) is fixedly connected to the output end of the motor (12); a push rod (14) is fixedly connected to the middle of the support shaft (13); a first support frame (15) is provided inside the first rotating groove (1); the diameter of the first support frame (15) is smaller than the inner diameter of the first rotating groove (1); a screen (16) is fixedly connected to the middle of the first support frame (15).

2. A sand handling and cooling apparatus for lost foam castings according to claim 1, characterized in that: A disintegration plate (2) is fixedly connected to the middle of the support shaft (13); there are multiple disintegration plates (2) and they are distributed in a ring in the middle of the support shaft (13).

3. A sand handling and cooling apparatus for lost foam castings according to claim 2, characterized in that: The dispersing plate (2) has a through hole (3) in the middle; there are multiple through holes (3) and they are evenly distributed in the middle of the dispersing plate (2).

4. A sand conditioning and cooling apparatus for lost foam castings according to claim 3, wherein: The first support frame (15) has a rolling groove (4) at its bottom; the rolling groove (4) has a ball (41) in the middle; there are multiple balls (41) and they are evenly distributed in the middle of the rolling groove (4).

5. A sand conditioning and cooling apparatus for lost foam castings according to claim 4, wherein: The bottom of the first rotating groove (1) is fixedly connected to a second support frame (5); a collection box (51) is provided in the middle of the second support frame (5); the collection box (51) and the second support frame (5) are in sliding fit.

6. A sand conditioning and cooling apparatus for lost foam castings according to claim 5, wherein: The bottom of the inner wall of the second support frame (5) is provided with a second rotating groove (6); there are multiple second rotating grooves (6) and they are evenly distributed at the bottom of the inner wall of the second support frame (5); a roller (61) is rotatably connected in the middle of the second rotating groove (6).

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