Recycling device for used sand for casting

Abstract

The utility model relates to the technical field of casting used sand treatment, and discloses a casting used sand recovery device which comprises a device box body, supporting legs are fixed to the four corners of the bottom end of the device box body respectively, a discharging port is formed in the left side of the bottom end of the device box body, and an installation base is fixed to the right side of the device box body. And the rear end of the device box body is provided with a dust removal mechanism for carrying out auxiliary dust removal when used sand is recycled and crushed. In the using process of the used sand recycling device for casting, a negative pressure fan in the mounting box can be controlled to be started, negative pressure is generated, then suction can be conducted through a communicated dust suction opening, dust generated when used sand is guided into the device to be crushed can be directly extracted outwards through the dust suction opening and guided into a dust collection barrel through a connecting pipe to be collected, and therefore the dust collection effect is improved. And dust drifting pollution in the old sand treatment process is reduced, and the problem that auxiliary dust removal in the old sand recovery process is inconvenient is solved.

Description

Technical Field

[0001] This utility model relates to the field of foundry waste sand treatment technology, specifically a foundry waste sand recycling device. Background Technology

[0002] Foundry sand is a material used in casting production to prepare molding sand and core sand. It is mainly used to fill the cavity of the mold so that molten metal can be injected into the mold to form the required metal products. Due to the special process nature of casting, a large amount of waste sand is generated after casting. In order to facilitate the recycling and processing of waste sand, it is necessary to use a foundry waste sand recycling device to pre-crush and recycle some large pieces of waste sand.

[0003] However, in the actual installation and use of some foundry waste sand recycling devices, when the waste sand is introduced into the device for auxiliary crushing and recycling, some dust generated after the waste sand is crushed will directly drift out into the air, causing not only air pollution but also dirt on the outside of the device. This is a shortcoming and makes it inconvenient to carry out auxiliary dust removal during the waste sand recycling process.

[0004] Now, a new type of waste sand recycling device for foundry is proposed to address the above-mentioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a waste sand recycling device for foundry, so as to solve the problem mentioned in the background art that it is inconvenient to carry out auxiliary dust removal during the waste sand recycling process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waste sand recycling device for foundry, comprising a device housing, with support legs fixed at the four corners of the bottom of the device housing, a discharge port on the left side of the bottom of the device housing, a mounting base fixed on the right side of the device housing, and a dust removal mechanism for auxiliary dust removal during the waste sand recycling and crushing process at the rear end of the device housing.

[0007] The dust removal mechanism includes a dust extraction port, a screen, a mounting box, a negative pressure fan, a dust collection cylinder, and a connecting pipe. The mounting box is fixedly installed on the left side of the rear end of the device housing. The dust extraction port is fixedly installed on the top of the rear end of the device housing, and a screen is fixedly installed at the front end of the dust extraction port. The negative pressure fan is fixedly installed on the bottom of the mounting box. The dust collection cylinder is installed inside the mounting box, and the connecting pipe is installed on the top of the mounting box.

[0008] As a further technical solution of this utility model, the front end of the dust extraction port penetrates the interior of the rear end of the device housing, and the dust extraction port is connected to the interior of the device housing.

[0009] As a further technical solution of this utility model, the bottom end of the connecting pipe penetrates the interior of the top of the mounting box and is fixedly connected to the top of the dust collection cylinder, and the front end of the connecting pipe is fixedly connected to the rear end of the dust extraction port.

[0010] As a further technical solution of this utility model, a mounting frame is provided at the bottom of the device housing, and a conveyor belt is horizontally mounted and fixed inside the mounting frame. A drive motor is mounted and fixed on the left side of the front end of the mounting frame, and the two ends of the mounting frame are respectively fixedly connected to the support legs.

[0011] As a further technical solution of this utility model, the output shaft of the drive motor passes through the interior of the front end of the mounting frame and is fixedly connected to the input end of the conveyor belt.

[0012] As a further technical solution of this utility model, the two ends of the bottom right side of the device box are respectively fixed with supports, the right side of the top of the device box is provided with a cover, the top and right side of the cover are respectively provided with mounting bolts, and the inside of the top of the support and the inside of the right side of the mounting seat are respectively provided with threaded inner holes.

[0013] As a further technical solution of this utility model, the mounting bolt penetrates the interior of the cover and is threadedly rotatably connected in the threaded inner hole.

[0014] As a further technical solution of this utility model, a fixed jaw plate is installed and fixed on the left side of the device housing, a movable seat is installed on the right side of the device housing, and a movable jaw plate is installed and fixed on the left side of the movable seat. A fixed sleeve is fixed at the top of the movable seat, and an eccentric shaft is provided inside the fixed sleeve. The rear end of the eccentric shaft passes through the interior of the rear end of the device housing and is fixedly mounted with a large pulley. The front end of the eccentric shaft passes through the interior of the front end of the device housing and is fixedly mounted with a counterweight wheel. A second drive motor is installed and fixed at the rear end of the top of the mounting seat, and a small pulley is installed at the output end of the second drive motor. The small pulley and the large pulley are connected by a belt.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the casting waste sand recycling device not only facilitates auxiliary dust removal during the waste sand recycling process and facilitates the rapid outward discharge of the crushed waste sand, but also facilitates the protection of the outside of the recycling device drive components.

[0016] (1) The device is equipped with a housing, dust extraction port, screen, installation box, negative pressure fan, dust collection cylinder and connecting pipe. During the use of the device, the negative pressure fan inside the installation box can be started to generate negative pressure. Then, the dust generated when the old sand is introduced into the device for crushing can be directly extracted from the dust extraction port and introduced into the dust collection cylinder through the connecting pipe to reduce dust dispersion pollution during the old sand treatment process.

[0017] (2) The recycling device is equipped with legs, mounting frame, drive motor one, device box, discharge port and conveyor belt. When the recycling device is in use, drive motor two is controlled to start the drive eccentric shaft to rotate. When the eccentric shaft rotates, the fixed sleeve can drive the movable seat and movable jaw plate to reciprocate the impact motion. Then the old sand block is introduced into the mounting frame between the fixed jaw plate and the movable jaw plate. The old sand block can be crushed and dispersed. The crushed old sand is discharged downward from the discharge port. The conveyor belt installed in the mounting frame at the bottom of the device box can assist in receiving the material and can quickly transport the old sand to the right and discharge it.

[0018] (3) By providing a device housing, cover, support, mounting base, threaded inner hole and mounting bolts, when the device is in use, an auxiliary cover is provided on the outside of the drive components such as the second drive motor and the large pulley at the top right of the device housing to prevent collision and improve the safety of the device drive components in use and operation. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a top view of the device housing of this utility model.

[0021] Figure 3 This is a partial sectional view of the mounting box of this utility model from the side.

[0022] Figure 4 This utility model Figure 1 A magnified structural diagram at point A in the diagram.

[0023] In the diagram: 1. Support leg; 2. Mounting frame; 3. Drive motor one; 4. Device housing; 5. Discharge port; 6. Fixed jaw plate; 7. Movable jaw plate; 8. Dust extraction port; 9. Netting; 10. Movable seat; 11. Large pulley; 12. Fixed sleeve; 13. Cover; 14. Support; 15. Drive motor two; 16. Mounting seat; 17. Conveyor belt; 18. Eccentric shaft; 19. Small pulley; 20. Counterweight wheel; 21. Mounting box; 22. Negative pressure fan; 23. Dust collection cylinder; 24. Connecting pipe; 25. Threaded inner hole; 26. Mounting bolt. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-4 This utility model provides an embodiment: a casting waste sand recycling device, including a device box 4, with support legs 1 fixed at the four corners of the bottom of the device box 4, a discharge port 5 provided on the left side of the bottom of the device box 4, a mounting base 16 fixed on the right side of the device box 4, and a dust removal mechanism for auxiliary dust removal during the crushing and recycling of waste sand provided at the rear end of the device box 4.

[0026] The dust removal mechanism includes a dust extraction port 8, a screen 9, a mounting box 21, a negative pressure fan 22, a dust collection cylinder 23, and a connecting pipe 24. The mounting box 21 is fixedly installed on the left side of the rear end of the device box 4. The dust extraction port 8 is fixedly installed on the top of the rear end of the device box 4, and the screen 9 is fixedly installed on the front end of the dust extraction port 8. The negative pressure fan 22 is fixedly installed on the bottom of the mounting box 21. The dust collection cylinder 23 is installed inside the mounting box 21, and the connecting pipe 24 is installed on the top of the mounting box 21.

[0027] The front end of the dust extraction port 8 penetrates the interior of the rear end of the device housing 4 and is connected to the interior of the device housing 4. The bottom end of the connecting pipe 24 penetrates the interior of the top end of the mounting box 21 and is fixedly connected to the top end of the dust collection cylinder 23. The front end of the connecting pipe 24 is fixedly connected to the rear end of the dust extraction port 8.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, the negative pressure fan 22 inside the controllable installation box 21 can be started to generate negative pressure. Then, the dust generated during the crushing of the old sand inlet device can be directly drawn out from the dust outlet 8 and introduced into the dust collection cylinder 23 through the connecting pipe 24 for collection. The dust removal process is carried out during the recycling process.

[0029] The bottom of the device housing 4 is provided with a mounting frame 2, and a conveyor belt 17 is horizontally mounted and fixed inside the mounting frame 2. A drive motor 3 is mounted and fixed on the left side of the front end of the mounting frame 2. The two ends of the mounting frame 2 are fixedly connected to the support legs 1 respectively. The output shaft of the drive motor 3 passes through the interior of the front end of the mounting frame 2 and is fixedly connected to the input end of the conveyor belt 17.

[0030] Specifically, such as Figures 1-3 As shown, after the old sand blocks are crushed by the fixed jaw plate 6 and the movable jaw plate 7 inside the mounting frame 2, they can be discharged downwards from the discharge port 5. The conveyor belt 17 installed inside the mounting frame 2 at the bottom of the device box 4 can assist in receiving the material and can quickly transport the old sand material to the right and discharge it.

[0031] Supports 14 are fixed at both ends of the bottom right side of the device box 4. A cover 13 is provided on the right side of the top of the device box 4. Mounting bolts 26 are provided on the top and right side of the cover 13. Threaded inner holes 25 are opened in the inside of the top of the support 14 and the inside of the right side of the mounting seat 16. The mounting bolts 26 pass through the inside of the cover 13 and are threadedly rotated in the threaded inner holes 25.

[0032] Specifically, such as Figure 1 and Figure 4 As shown, an auxiliary cover is provided to protect the drive components, such as the second drive motor 15 and the large pulley 11, on the right side of the top of the device housing 4 for impact protection.

[0033] A fixed jaw plate 6 is installed and fixed on the left side inside the device housing 4. A movable seat 10 is installed on the right side inside the device housing 4, and a movable jaw plate 7 is installed and fixed on the left side of the movable seat 10. A fixed sleeve 12 is fixed at the top of the movable seat 10, and an eccentric shaft 18 is provided inside the fixed sleeve 12. The rear end of the eccentric shaft 18 passes through the interior of the rear end of the device housing 4 and a large pulley 11 is installed and fixed thereon. The front end of the eccentric shaft 18 passes through the interior of the front end of the device housing 4 and a counterweight wheel 20 is installed and fixed thereon. A second drive motor 15 is installed and fixed at the rear end of the top of the mounting base 16, and a small pulley 19 is installed at the output end of the second drive motor 15. The small pulley 19 and the large pulley 11 are connected by a belt.

[0034] Working principle: In use, the control drive motor 15 starts and drives the eccentric shaft 18 to rotate. Simultaneously, the rotating eccentric shaft 18 drives the movable seat 10 and the movable jaw plate 7 to reciprocate and impact each other via the movable fixed sleeve 12. Then, the old sand blocks are guided into the mounting frame 2 between the fixed jaw plate 6 and the movable jaw plate 7, which assists in crushing and breaking down the old sand blocks. The crushed old sand is discharged downwards from the discharge port 5. The conveyor belt 17 installed inside the mounting frame 2 at the bottom of the device housing 4 assists in receiving the material. It can quickly convey and discharge old sand to the right. While crushing and recycling, it can control the negative pressure fan 22 inside the installation box 21 to start, generate negative pressure, and then use the connected dust extraction port 8 to suck up the dust generated when the old sand is crushed inside the device. The dust can be directly extracted from the dust extraction port 8 and introduced into the dust collection cylinder 23 through the connecting pipe 24 for collection. When the device is in use, the drive motor 15 and the large pulley 11 and other drive components at the top right of the device box 4 are provided with an auxiliary outer cover for anti-collision protection.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for recycling used foundry sand, comprising a device housing (4), characterized in that: Support legs (1) are fixed at the four corners of the bottom of the device box (4). A discharge port (5) is provided on the left side of the bottom of the device box (4). A mounting base (16) is fixed on the right side of the device box (4). A dust removal mechanism for auxiliary dust removal during the recycling and crushing of old sand is provided at the rear end of the device box (4). The dust removal mechanism includes a dust extraction port (8), a screen (9), a mounting box (21), a negative pressure fan (22), a dust collection cylinder (23), and a connecting pipe (24). The mounting box (21) is fixedly installed on the left side of the rear end of the device housing (4). The dust extraction port (8) is fixedly installed on the top of the rear end of the device housing (4), and the screen (9) is fixedly installed at the front end inside the dust extraction port (8). The negative pressure fan (22) is fixedly installed at the bottom inside the mounting box (21). The dust collection cylinder (23) is installed inside the mounting box (21), and the connecting pipe (24) is installed at the top of the mounting box (21).

2. The foundry waste sand recycling device according to claim 1, characterized in that: The front end of the dust extraction port (8) penetrates the interior of the rear end of the device housing (4), and the dust extraction port (8) is connected to the interior of the device housing (4).

3. The foundry waste sand recycling device according to claim 1, characterized in that: The bottom end of the connecting pipe (24) passes through the interior of the top of the mounting box (21) and is fixedly connected to the top of the dust collection cylinder (23). The front end of the connecting pipe (24) is fixedly connected to the rear end of the dust extraction port (8).

4. The foundry waste sand recycling device according to claim 1, characterized in that: The bottom of the device housing (4) is provided with a mounting frame (2), and a conveyor belt (17) is horizontally installed and fixed inside the mounting frame (2). A drive motor (3) is installed and fixed on the left side of the front end of the mounting frame (2). The two ends of the mounting frame (2) are respectively fixedly connected to the support leg (1).

5. A waste sand recycling device for foundry according to claim 4, characterized in that: The output shaft of the drive motor (3) passes through the interior of the front end of the mounting bracket (2) and is fixedly connected to the input end of the conveyor belt (17).

6. The foundry waste sand recycling device according to claim 1, characterized in that: Supports (14) are fixed at both ends of the bottom right side of the device housing (4). A cover (13) is provided on the right side of the top of the device housing (4). Mounting bolts (26) are provided on the top and right side of the cover (13). Threaded inner holes (25) are opened in the inside of the top of the support (14) and the inside of the right side of the mounting base (16).

7. A waste sand recycling device for foundry according to claim 6, characterized in that: The mounting bolt (26) passes through the inside of the cover (13) and is threadedly connected to the threaded inner hole (25).

8. The waste sand recycling device for foundry according to claim 1, characterized in that: A fixed jaw plate (6) is installed and fixed on the left side inside the device housing (4). A movable seat (10) is installed on the right side inside the device housing (4), and a movable jaw plate (7) is installed and fixed on the left side of the movable seat (10). A fixed sleeve (12) is fixed at the top of the movable seat (10), and an eccentric shaft (18) is provided inside the fixed sleeve (12). The rear end of the eccentric shaft (18) passes through the interior of the rear end of the device housing (4) and a large pulley (11) is installed and fixed. The front end of the eccentric shaft (18) passes through the interior of the front end of the device housing (4) and a counterweight wheel (20) is installed and fixed. A second drive motor (15) is installed and fixed at the rear end of the top of the mounting seat (16), and a small pulley (19) is installed at the output end of the second drive motor (15). The small pulley (19) and the large pulley (11) are connected by a belt.

Images