Foundry sand cooling equipment

Abstract

The invention discloses foundry sand cooling equipment in the technical field of foundry sand, the foundry sand cooling equipment comprises a cooling cylinder, a feeding hole is formed in the cooling cylinder, a plurality of stirring blades capable of accelerating foundry sand cooling are arranged on the inner wall of the cooling cylinder in an attached mode, and the stirring blades are fixedly connected with a rotating shaft through a fixing disc; the end part of the rotating shaft penetrates through and extends out of the cooling cylinder to be fixedly connected with a motor; a cooling assembly capable of increasing the cooling speed of the foundry sand is arranged on the stirring blades; a crushing assembly capable of crushing the foundry sand is arranged in the cooling cylinder and located on the side edge of the stirring blade. The crushing assembly pushes the crushed casting sand to the position below the stirring blades, and the cooling assembly synchronously cools the casting sand while the stirring blades scatter and cool the casting sand. And through the multiple stirring blades attached to the inner wall of the cooling cylinder, casting sand attached to the inner wall of the cooling cylinder can be continuously turned out during rotation, heat of the casting sand accumulated at the lower end of the cooling cylinder is taken away, and rapid cooling is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foundry sand, in particular to a foundry sand cooling device. BACKGROUND

[0002] In the process of casting production, the used foundry sand often carries a large amount of residual heat due to contact with high-temperature metal liquid, and needs to be professionally cooled. The traditional foundry sand flows poorly in the equipment, and there are many cooling dead angles. At the same time, the high-temperature foundry sand is easy to form clumps, and the sand particles in the clumps are tightly adhered, which reduces the actual heat dissipation surface area compared to loose sand particles, and easily leads to uneven cooling, affecting the heat dissipation efficiency. SUMMARY

[0003] The purpose of the present application is to provide a foundry sand cooling device to solve the problems raised in the background.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a foundry sand cooling device, comprising a cooling cylinder, a feeding hole is formed in the cooling cylinder, a plurality of stirring blades capable of accelerating the cooling of foundry sand are attached to the inner wall of the cooling cylinder, the stirring blades are fixedly connected with rotating shafts through fixing discs, and the end portions of the rotating shafts are fixedly connected with a motor outside the cooling cylinder and extend into the cooling cylinder. A cooling assembly capable of accelerating the cooling speed of the foundry sand is arranged on the stirring blade. A crushing assembly capable of crushing the foundry sand is arranged inside the cooling cylinder and at the side of the stirring blade; the crushing assembly pushes the crushed foundry sand into the lower part of the stirring blade, and the stirring blade scatters and cools the foundry sand while the cooling assembly cools the foundry sand at the same time.

[0005] As a further scheme of the present application, the crushing assembly comprises a fixed plate fixed in the cooling cylinder, the side of the fixed plate close to the fixing disc, an extrusion plate capable of crushing the clumped foundry sand is arranged inside the cooling cylinder, the outer surface of the extrusion plate is fixedly connected with a pushing ring, and the pushing ring is in longitudinal elastic sliding connection with the cooling cylinder. A driving rod is fixedly connected to the pushing ring, the upper end of the driving rod is fixedly connected with a fixed block, the side of the fixed block is provided with a wedge-shaped block capable of driving it to work horizontally, and the lower end of the wedge-shaped block is fixedly connected with a driving block. The crushing assembly further comprises a knocking assembly capable of further crushing the foundry sand.

[0006] As a further scheme of the present application, the knocking assembly comprises a fixed frame fixedly connected to the rotating shaft, each end of the fixed frame is slidingly connected with a sliding column, the upper end of the sliding column is elastically slidingly connected with the fixed frame through a spring, one end of the sliding column close to the extrusion plate is fixedly connected with a knocking plate, a plurality of driving blocks capable of driving the knocking plate to move upward are circumferentially arranged on the extrusion plate, and the driving blocks are fixedly connected with the extrusion plate.

[0007] As a further scheme of the present application, the cooling assembly comprises a plurality of air ducts fixedly installed on the stirring blade in correspondence, the air ducts are fixedly connected with a fixed disc provided with a hollow inside, and the air ducts are communicated with the fixed disc; the rotating shaft is a hollow pipe communicated with the rotating shaft of the fixed disc, one end of the rotating shaft close to the motor is fixedly connected with a fan, and the fan can drive air flow into the fixed disc through the rotating shaft, and then the air flow is blown out through the air ducts to cool the foundry sand in the cooling cylinder.

[0008] As a further scheme of the present application, the cooling cylinder is provided with a discharging hole; during operation, the discharging hole can pour out the cooled foundry sand.

[0009] As a further scheme of the present application, the cooling cylinder is provided with a support capable of horizontally placing and obliquely placing the cooling cylinder.

[0010] As a further scheme of the present application, the upper end of the cooling cylinder is provided with a heat dissipation hole; the heat dissipation hole can quickly discharge the heated air, avoid the high-temperature air flow accumulated in the cylinder, and ensure the air flow circulation efficiency of the air cooling system.

[0011] As a further scheme of the present application, the stirring blade is provided with a stirring hole; during operation, the foundry sand can be scattered through the stirring hole.

[0012] Compared with the prior art, the present application has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS Figure 1 It is a general structure schematic view of the present application; Figure 2 It is a half-section structure schematic view of the cooling cylinder of the present application; Figure 3 It is a half-section front view structure schematic view of the cooling cylinder of the present application; Figure 4 It is a structure schematic view of the air duct position of the present application; Figure 5 It is a structure schematic view of the related structure of the fixed frame of the present application; Figure 6 It is a front view structure schematic view of the fixed plate and the extrusion plate of the present application.

[0013] In the drawing: cooling cylinder 1, inlet hole 2, stirring blade 3, fixed disc 4, rotating shaft 5, motor 6, air cylinder 7, fan 8, fixed plate 9, extrusion plate 10, pushing ring 11, fixed frame 12, sliding column 13, spring 14, knocking plate 15, driving block 16, discharge hole 17, driving rod 18, fixed block 19, wedge block 20, driving block 21, support 22, stirring hole 23. DETAILED DESCRIPTION

[0014] Please refer to Figures 1-6 The application provides a technical scheme: a casting sand cooling equipment, comprising a cooling cylinder 1, wherein an inlet hole 2 is formed in the cooling cylinder 1, and a plurality of stirring blades 3 capable of accelerating the cooling of casting sand are attached to the inner wall of the cooling cylinder 1, the stirring blades 3 are fixedly connected with a rotating shaft 5 through a fixed disc 4, and a motor 6 is fixedly connected to the end of the rotating shaft 5 and extends to the outside of the cooling cylinder 1. The stirring blades 3 are provided with a cooling assembly capable of accelerating the cooling speed of the casting sand. The inside of the cooling cylinder 1 and the side of the stirring blades 3 are provided with a crushing assembly capable of crushing the casting sand; the crushing assembly pushes the crushed casting sand into the lower part of the stirring blades 3, and the stirring blades 3 cool the casting sand while the cooling assembly simultaneously cools the casting sand.

[0015] When working: high-temperature casting sand is first poured into the cooling cylinder through the inlet hole 2; the motor 6 is started to work, the output shaft of the motor 6 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the crushing assembly to crush the agglomerated casting sand, and then the crushing assembly pushes the crushed casting sand into the lower part of the stirring blades 3, the stirring blades 3 cool the casting sand while the cooling assembly simultaneously cools the casting sand, and meanwhile the rotating shaft 5 is connected with the stirring blades 3 through the fixed disc 4, thereby driving the stirring blades 3 to make circular motion around the axis of the cooling cylinder; during the rotation of the stirring blades 3, the stirring blades 3 continuously turn over the casting sand, so that the high-temperature casting sand originally inside is turned over, the casting sand is fully dispersed in the cooling cylinder, and the heat dispersion is accelerated. Secondly, the plurality of stirring blades 3 attached to the inner wall of the cooling cylinder 1 can continuously turn over the casting sand attached to the inner wall of the cooling cylinder 1 during rotation, take away the heat of the casting sand accumulated at the low end of the cooling cylinder 1, and realize rapid cooling. As a further scheme of the application, the crushing assembly comprises a fixed plate 9 fixed in the cooling cylinder 1, the fixed plate 9 is located on the side close to the fixed disc 4, the inside of the cooling cylinder 1 is provided with an extrusion plate 10 capable of crushing the agglomerated casting sand, the outer surface of the extrusion plate 10 is fixedly connected with a pushing ring 11, and the pushing ring 11 is in elastic sliding connection with the cooling cylinder 1 in the longitudinal direction. The driving rod 18 is fixedly connected with the pushing ring 11, the upper end of the driving rod 18 is fixedly connected with a fixed block 19, and the side of the fixed block 19 is provided with a wedge-shaped block 20 capable of driving the horizontal operation. The crushing assembly further comprises a knocking assembly capable of further crushing the foundry sand.

[0016] When working, as shown in Figure 1 , 2 , the motor 6 drives the driving block 21 to rotate through the rotating shaft 5, the driving block 21 drives the wedge-shaped block 20 to rotate, when the wedge-shaped block 20 rotates to contact the fixed block 19, the inclined surface of the wedge-shaped block 20 drives the fixed block 19 to move leftward, the fixed block 19 drives the extrusion plate 10 and the pushing ring 11 to move leftward through the driving rod 18, and the foundry sand between the fixed plate 9 and the extrusion plate 10 is crushed. Figure 6 The foundry sand is pushed to the left side of the cooling cylinder 1 through the gap a between the fixed plate 9 and the cooling cylinder 1, and is scraped up by the stirring blade 3 to dissipate heat, so that the agglomerated foundry sand is crushed and dissipated, the dissipation efficiency of the foundry sand is accelerated, and the agglomerated foundry sand can be crushed and recycled.

[0017] As a further scheme of the application, the knocking assembly comprises a fixed frame 12 fixedly connected with the rotating shaft 5, each end of the fixed frame 12 is slidingly connected with a sliding column 13, the upper end of the sliding column 13 is elastically slidingly connected with the fixed frame 12 through a spring 14, one end of the sliding column 13 close to the extrusion plate 10 is fixedly connected with a knocking plate 15, a plurality of driving blocks 16 capable of driving the knocking plate 15 to move upward are circumferentially arranged on the extrusion plate 10, and the driving blocks 16 are fixedly connected with the extrusion plate 10.

[0018] When working, as shown in Figure 2 and Figure 5 , during the rotation of the motor 6, the fixed frame 12 is driven to rotate clockwise synchronously, the fixed frame 12 drives the knocking plate 15 to move on the inclined surface of the driving block 16, the spring 14 is stretched when the knocking plate 15 passes through the sliding column 13, then when the knocking plate 15 moves to the vertical surface of the driving block 16, the stretched spring 14 needs to restore the initial state, drives the knocking plate 15 to knock on the extrusion plate 10, so that the extrusion plate 10 vibrates, and helps the extrusion plate 10 to further crush the agglomerated foundry sand.

[0019] As a further scheme of the present application, the cooling assembly comprises a plurality of air ducts 7 fixedly installed on the stirring blade 3, the air ducts 7 are fixedly connected with the fixed disc 4 which is internally hollow, and the air ducts 7 are in communication with the fixed disc 4; the rotating shaft 5 is a hollow pipe and is in communication with the rotating shaft of the fixed disc 4, and the end of the rotating shaft 5 close to the motor 6 is fixedly connected with a fan 8, the fan 8 can transmit the airflow into the fixed disc 4 through the rotating shaft 5, and then the airflow is blown out through the air ducts 7 after passing through the fixed disc 4, so as to cool the foundry sand in the cooling cylinder 1.

[0020] In operation, the fan 8 is started to transmit the airflow into the fixed disc 4 through the rotating shaft 5, and then the airflow is communicated into the plurality of air ducts 7 through the fixed disc 4, in the process of rotation of the stirring blade 3, the air ducts 7 rotate synchronously with the stirring blade 3 to realize heat dissipation of the foundry sand at different angles, change the limitation of single-angle heat dissipation, make the heat dissipation more comprehensive and uniform, and effectively improve the heat dissipation effect.

[0021] As a further scheme of the present application, the cooling cylinder 1 is provided with a discharge hole 17; in operation, the discharge hole 17 can pour out the cooled foundry sand.

[0022] As a further scheme of the present application, the cooling cylinder 1 is provided with a support 22 which can horizontally place and obliquely place the cooling cylinder 1.

[0023] As a further scheme of the present application, the upper end of the cooling cylinder 1 is provided with a heat dissipation hole; in operation, the heat dissipation hole can quickly discharge the heated air to avoid accumulation of high-temperature airflow in the cylinder, and ensure the airflow circulation efficiency of the air cooling system.

[0024] As a further scheme of the present application, the stirring blade 3 is provided with a stirring hole 23; in operation, the foundry sand can be scattered through the stirring hole.

[0025] Working principle: first, pour the high-temperature foundry sand into the cooling cylinder through the feeding hole 2; start the motor 6 to work, the output shaft of the motor 6 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the crushing assembly to crush the caked foundry sand, and then the crushing assembly pushes the crushed foundry sand into the lower part of the stirring blade 3, the stirring blade 3 scatters and cools the foundry sand while the cooling assembly cools the foundry sand synchronously, and the rotating shaft 5 is connected with the stirring blade 3 through the fixed disc 4, so as to drive the stirring blade 3 to make a circular motion around the axis of the cooling cylinder; in the process of rotation of the stirring blade 3, the stirring blade 3 constantly overturns the foundry sand to break the heat insulation layer formed by the foundry sand accumulation, so that the high-temperature foundry sand originally in the inside is overturned, the foundry sand is fully scattered in the cooling cylinder, and the heat dispersion is accelerated. As Figure 1 , 2As shown, the motor 6 drives the driving block 21 to rotate through the rotating shaft 5, and the driving block 21 drives the wedge-shaped block 20 to rotate. When the wedge-shaped block 20 rotates to contact the fixed block 19, the inclined surface of the wedge-shaped block 20 drives the fixed block 19 to move leftward. The fixed block 19 drives the extrusion plate 10 and the pushing ring 11 to move leftward through the driving rod 18, and the extrusion plate 10 crushes the casting sand between the fixed plate 9 and the extrusion plate 10. Figure 6 The casting sand pushed to the left side of the cooling cylinder 1 at the gap a between the fixed plate 9 and the cooling cylinder 1 is scraped up by the stirring blade 3 to dissipate heat, which realizes the crushing and heat dissipation of the agglomerated casting sand, accelerates the heat dissipation efficiency of the casting sand, and can also crush the agglomerated casting sand for recycling. As shown, Figure 2 As shown, Figure 5 As shown, the motor 6 drives the fixed frame 12 to rotate clockwise synchronously during rotation, and the fixed frame 12 drives the knocking plate 15 to move on the inclined surface of the driving block 16. The spring 14 is stretched when the knocking plate 15 passes through the sliding column 13. Then, when the knocking plate 15 moves to the vertical surface of the driving block 16, the stretched spring 14 needs to recover to the initial state, drives the knocking plate 15 to knock on the extrusion plate 10, and makes the extrusion plate 10 vibrate to help the extrusion plate 10 further crush the agglomerated casting sand. Start the fan 8, the fan 8 transmits airflow into the fixed disc 4 through the rotating shaft 5, and then the fixed disc 4 passes the airflow into multiple air ducts 7. During the rotation of the stirring blade 3, the air ducts 7 rotate synchronously with the stirring blade 3, which realizes the heat dissipation of the casting sand at different angles and changes the limitation of single-angle heat dissipation, making the heat dissipation more comprehensive and uniform, effectively improving the heat dissipation effect.

Claims

1. A foundry sand cooling apparatus comprising a cooling cylinder (1), characterized in that: The cooling cylinder (1) is provided with an inlet hole (2), and the inner wall of the cooling cylinder (1) is attached with a plurality of stirring blades (3) capable of accelerating the cooling of the casting sand, the stirring blades (3) are fixedly connected with a rotating shaft (5) through a fixed disc (4), and the end of the rotating shaft (5) extends to the outside of the cooling cylinder (1) and is fixedly connected with a motor (6). The stirring blade (3) is provided with a cooling assembly capable of accelerating the cooling speed of the casting sand. The inside of the cooling cylinder (1) and the side of the stirring blade (3) are provided with a crushing assembly capable of crushing the casting sand; the crushing assembly pushes the crushed casting sand into the lower part of the stirring blade (3), and the stirring blade (3) scatters and cools the casting sand while the cooling assembly cools the casting sand synchronously.

2. A foundry sand cooling apparatus according to claim 1, characterized in that: The crushing assembly comprises a fixed plate (9) fixed in the cooling cylinder (1), the side of the fixed plate (9) close to the fixed disc (4), the inside of the cooling cylinder (1) is provided with an extrusion plate (10) capable of crushing the agglomerated casting sand, the outer surface of the extrusion plate (10) is fixedly connected with a pushing ring (11), and the pushing ring (11) is in longitudinal elastic sliding connection with the cooling cylinder (1). The pushing ring (11) is fixedly connected with a driving rod (18), the upper end of the driving rod (18) is fixedly connected with a fixed block (19), and the side of the fixed block (19) is provided with a wedge-shaped block (20) capable of driving it to work horizontally; the lower end of the wedge-shaped block (20) is fixedly connected with a driving block (21). The crushing assembly further comprises a knocking assembly capable of further crushing the casting sand.

3. A foundry sand cooling apparatus according to claim 2, characterised in that: The knocking assembly comprises a fixed frame (12) fixedly connected to the rotating shaft (5), each end of the fixed frame (12) is slidingly connected with a sliding column (13), the upper end of the sliding column (13) is in elastic sliding connection with the fixed frame (12) through a spring (14), one end of the sliding column (13) close to the extrusion plate (10) is fixedly connected with a knocking plate (15), and the extrusion plate (10) is circumferentially provided with a plurality of driving blocks (16) capable of driving the knocking plate (15) to move upward, and the driving blocks (16) are fixedly connected with the extrusion plate (10).

4. A foundry sand cooling apparatus according to claim 3, characterised in that: The cooling assembly comprises a plurality of air ducts (7) fixedly installed on the stirring blade (3), the air ducts (7) are fixedly connected with the fixed disc (4) which is hollow inside, the air ducts (7) are in communication with the fixed disc (4); the rotating shaft (5) is a hollow pipe, is in communication with the rotating shaft of the fixed disc (4), one end of the rotating shaft (5) close to the motor (6) is fixedly connected with a fan (8), the fan (8) can transmit airflow into the fixed disc (4) through the rotating shaft (5), then the airflow passes through the fixed disc (4) and is blown out through the air ducts (7), so that the casting sand in the cooling cylinder (1) is cooled.

5. A foundry sand cooling apparatus as defined in claim 1, wherein: The cooling cylinder (1) is provided with an outlet hole (17).

6. A foundry sand cooling apparatus according to claim 1, characterized in that: The cooling cylinder (1) is provided with a support (22) capable of horizontally placing and obliquely placing the cooling cylinder (1).

7. A foundry sand cooling apparatus as defined in claim 1, wherein: The upper end of the cooling cylinder (1) is provided with a heat dissipation hole.

8. A foundry sand cooling apparatus according to claim 1, characterized in that: The stirring blade (3) is provided with a stirring hole (23).

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