A casting waste sand recycling device

Abstract

The utility model relates to foundry waste sand recycling device technical field especially relates to a kind of foundry waste sand recycling treatment device, including support frame, support frame top is set to the screening bin of transverse movement, the inside of screening bin is set to inclined screening board, further including lift door, lift door is inlaid and slidably arranged in the inner wall of screening bin side, lift door inner wall is fixedly set connection frame, the both sides of connection frame bottom are fixedly set and insert rod, insert rod is through the inclined lower end filter hole of inclined screening board, drive mechanism is set in support frame side, sliding mechanism is set between the bottom of screening bin and the top of support frame, adjusting mechanism is set in the outer wall of screening bin side, fixed mechanism is set in the inner chamber of screening bin, the utility model relates to a kind of foundry waste sand recycling treatment device, as described above, adopt lift door-insert rod-connection frame's linkage fixed structure, only need to control adjusting mechanism to realize the quick unlocking and locking of screen plate, single replacement time is shortened, avoid the cumbersome process that traditional bolt fixed needs tool auxiliary.

Description

Technical Field

[0001] This utility model relates to the technical field of waste sand recycling devices, and in particular to a waste sand recycling and treatment device for foundries. Background Technology

[0002] Waste sand is the casting sand waste that is peeled off from the surface of the casting after sand casting. Its main components are quartz sand, clay and organic residues. Through physical treatment processes such as crushing, magnetic separation and screening, waste sand can be transformed into reusable recycled sand, reducing production costs and environmental pollution.

[0003] In the field of foundry waste sand recycling and treatment, traditional devices mostly adopt a mechanical structure with bolted screen plates. When such devices are running, waste sand is fed in through the feed port at the top of the screening bin, and the drive mechanism pushes the screening bin to move laterally back and forth. The inclined screen plate separates large and small particles of waste sand under the action of inertia and gravity: small particles fall through the screen holes into the bottom collection device, while large particles remain at the bottom of the screen plate. However, the screen plate of traditional devices relies on a bolt locking structure. When replacing the screen plate, multiple bolts need to be loosened with tools, which is cumbersome and time-consuming. Especially in high-frequency casting production scenarios, the need to frequently replace screen plates to adapt to the needs of waste sand of different particle sizes is significant. The inefficiency of bolt fixing directly leads to extended equipment downtime and reduced production efficiency, becoming a key technical bottleneck restricting continuous production.

[0004] Therefore, to address the issue of inconvenience in quickly unlocking and locking screen plates during replacement, a foundry waste sand recycling device can be designed. When the waste sand recycling device is in use, the lifting door rises while the connecting frame drives the insert rod to disengage from the lower filter hole of the screen plate, releasing the screen plate from its fixed state. At this time, the operator can hook the screen plate to make its tilted upper end disengage from the locking mechanism, achieving quick disassembly. When replacing the new screen plate, its tilted upper end is inserted into the fixing mechanism, the adjusting mechanism extends to push the lifting door down, and the insert rod re-penetrates through the lower filter hole of the screen plate to complete the fixation, forming a closed-loop operation. In summary, by adopting the linkage fixing structure of lifting door-insert rod-connecting frame, only the adjusting mechanism needs to be controlled to achieve quick unlocking and locking of the screen plate, shortening the replacement time and avoiding the cumbersome process of traditional bolt fixing that requires tools. Utility Model Content

[0005] Traditional devices rely on bolt-locking structures to fix the screen plates. When replacing the screen plates, multiple bolts need to be loosened with tools, which is cumbersome and time-consuming. Therefore, it is inconvenient to quickly unlock and lock the screen plates when using them in screen plate replacement scenarios.

[0006] The technical solution of this utility model is as follows: a foundry waste sand recycling and treatment device, including a support frame, a screening chamber that can move laterally is set on the top of the support frame, an inclined screening plate is set inside the screening chamber, and a lifting door is also included. The lifting door is embedded in and slidably set on one side of the inner wall of the screening chamber, a connecting frame is fixedly set on the inner wall of the lifting door, and insert rods are fixedly set on both sides of the bottom of the connecting frame. The insert rods pass through the filter holes at the lower inclined end of the inclined screening plate. A driving mechanism is set on one side of the support frame, a sliding mechanism is set between the bottom of the screening chamber and the top of the support frame, an adjustment mechanism is set on the outer wall of one side of the screening chamber, and a fixing mechanism is set in the inner cavity of the screening chamber.

[0007] Preferably, when the waste sand recycling device is in use, the waste sand is first fed into the top inlet of the screening bin. Simultaneously, the drive mechanism is activated to push the screening bin to reciprocate laterally along the sliding mechanism. The inclined screening plate inside the screening bin is tilted. Under the combined action of inertia and gravity, the waste sand slides along the screen plate. Small particles of waste sand fall through the screen holes to the bottom and are eventually discharged into the collection device, while large particles remain at the lower end of the inclined screening plate. After screening is complete, the waste collection frame is placed at the opening of the lifting door. Then, the adjusting mechanism is activated to raise the lifting door. At this time, the large particles of waste sand are discharged into the waste collection frame and collected. Furthermore, the lifting door... As the screen rises, the connecting frame drives the insert rod to disengage from the lower filter hole of the screening plate, releasing the screen plate from its fixed state. At this time, the operator can hook the screening plate to tilt its upper end and disengage it from the locking structure of the fixing mechanism, achieving quick disassembly. When replacing the new screening plate, its tilted upper end is inserted between the fixing mechanisms, the adjusting mechanism extends to push the lifting door down, and the insert rod re-penetrates through the lower filter hole of the screen plate to complete the fixing, forming a closed-loop operation. In summary, by adopting the linkage fixing structure of lifting door-insert rod-connecting frame, only the adjusting mechanism needs to be controlled to achieve quick unlocking and locking of the screen plate, shortening the time for a single replacement and avoiding the cumbersome process of traditional bolt fixing that requires tools.

[0008] Preferably, the fixing mechanism includes a fixing plate and a fixing frame. The fixing plate is fixedly installed on the inner wall of the other side of the screening chamber, and the fixing frame is fixedly installed in the screening chamber. The inclined upper end of the inclined screening plate is embedded between the fixing plate and the fixing frame.

[0009] Preferably, the adjustment mechanism includes an electrically controlled lifting rod and a support frame. The electrically controlled lifting rod is fixedly installed on the outer wall of one side of the screening chamber, and the support frame is fixedly installed at the telescopic end of the electrically controlled lifting rod. The support frame is fixedly connected to the outer wall of the lifting door.

[0010] Preferably, an inclined discharge hopper is fixedly installed on one side of the outer wall of the screening chamber, the inclined discharge hopper is located outside the lifting door, and an inclined guide hopper is fixedly installed inside the support frame, the inclined guide hopper is located at the bottom of the screening chamber.

[0011] Preferably, the drive mechanism includes a drive motor, a drive wheel, a driven wheel, a driven shaft, and a transmission belt. The drive motor is fixedly installed inside the support frame, the drive wheel is installed at the output end of the drive motor, the driven shaft is rotatably installed on one side above the support frame, the driven wheel is fixedly sleeved on the side wall of the driven shaft, and the transmission belt is sleeved on the outside of the driven wheel and the drive wheel.

[0012] Preferably, the drive mechanism also includes a fixed rod, an adjusting rod, and a connecting member. The fixed rod is fixedly installed at the end of the driven shaft, and the connecting member is fixedly installed on the outer wall of the other side of the screening chamber. The adjusting rod is rotatably installed between the connecting member and the fixed rod. One end of the adjusting rod is rotatably connected to the inside of the connecting member, and the other end of the adjusting rod is rotatably connected to one end of the fixed rod.

[0013] Preferably, the sliding mechanism includes a slide rail and pulleys. Two sets of pulleys are symmetrically and rotatably arranged on both sides of the top of the support frame. The bottom of the screening chamber is symmetrically and fixedly provided with a slide rail. The top of the pulley is embedded in and slides within the inner cavity of the slide rail.

[0014] The beneficial effects of this utility model are:

[0015] 1. When the waste sand recycling device is in use, firstly, the waste sand is fed into the top inlet of the screening bin. Simultaneously, the drive mechanism is activated, pushing the screening bin to reciprocate laterally along the sliding mechanism. The inclined screening plate inside the screening bin is tilted. Under the combined action of inertia and gravity, the waste sand slides along the screen plate. Small particles of waste sand fall through the screen holes to the bottom and are eventually discharged into the collection equipment. Large particles of waste sand remain at the lower end of the inclined screening plate. After screening is complete, the waste collection frame is placed at the opening of the lifting door. Then, the adjusting mechanism is activated to raise the lifting door. At this time, the large particles of waste sand are discharged into the waste collection frame and collected. Additionally, the lifting door... While the screen is being raised, the connecting frame drives the insert rod to disengage from the lower filter hole of the screen plate, releasing the screen plate from its fixed state. At this time, the operator can hook the screen plate so that its upper tilted end disengages from the locking structure of the fixing mechanism, achieving quick disassembly. When replacing the screen plate, its upper tilted end is inserted into the fixing mechanism, the adjusting mechanism extends to push the lifting door down, and the insert rod re-penetrates through the lower filter hole of the screen plate to complete the fixing, forming a closed-loop operation. In summary, by adopting the linkage fixing structure of lifting door-insert rod-connecting frame, only the adjusting mechanism needs to be controlled to achieve quick unlocking and locking of the screen plate, shortening the time for a single replacement and avoiding the cumbersome process of traditional bolt fixing that requires tools.

[0016] 2. Structural stability optimization: The sliding mechanism adopts a symmetrical layout of double slide rails and four pulleys to ensure the stability of the screening chamber when moving laterally and reduce the impact of equipment vibration on screening accuracy. The fixing mechanism, through the interlocking design of the fixing plate and the fixing frame, ensures the structural strength of the screen plate after installation and avoids displacement during the screening process.

[0017] 3. Automation and Safety: The electronic control design of the drive and adjustment mechanisms enables fully automated operation of the screening, discharge, and replacement processes, reducing the risk of manual intervention. The flow guidance design of the inclined discharge hopper and guide hopper ensures a clear material discharge path, reducing dust diffusion and material waste. Attached Figure Description

[0018] Figure 1 The diagram shown is a first three-dimensional structural schematic of a foundry waste sand recycling and treatment device according to this utility model.

[0019] Figure 2 The diagram shown is a partial three-dimensional structural schematic of a foundry waste sand recycling and treatment device according to this utility model.

[0020] Figure 3 The diagram shown is a half-section three-dimensional structural diagram of the screening chamber of a foundry waste sand recycling and treatment device according to this utility model.

[0021] Figure 4 What is shown is Figure 3 Enlarged 3D structural diagram with circled markings;

[0022] Figure 5 What is shown is Figure 2 Enlarged 3D structural diagram with circled markings;

[0023] Figure 6 The diagram shown is a partial three-dimensional structural schematic of the drive mechanism of a foundry waste sand recycling and treatment device according to this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Screening bin; 3. Inclined screening plate; 4. Lifting door; 5. Connecting frame; 6. Insert rod; 7. Fixing plate; 8. Fixing frame; 9. Electrically controlled lifting rod; 10. Fixing frame; 11. Inclined discharge hopper; 12. Inclined guide hopper; 13. Drive motor; 14. Drive wheel; 15. Driven wheel; 16. Driven shaft; 17. Transmission belt; 18. Fixing rod; 19. Adjusting rod; 20. Connecting piece; 21. Slide rail; 22. Pulley. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Please see Figure 1 and Figure 4This utility model provides an embodiment: a foundry waste sand recycling and treatment device, including a support frame 1, a screening chamber 2 that can move laterally is provided on the top of the support frame 1, an inclined screening plate 3 is provided inside the screening chamber 2, and a lifting door 4 is also provided. The lifting door 4 is embedded in and slidably provided on one side of the inner wall of the screening chamber 2. A connecting frame 5 is fixedly provided on the inner wall of the lifting door 4. Insert rods 6 are fixedly provided on both sides of the bottom of the connecting frame 5. The insert rods 6 pass through the filter holes at the lower inclined end of the inclined screening plate 3. A driving mechanism is provided on one side of the support frame 1. A sliding mechanism is provided between the bottom of the screening chamber 2 and the top of the support frame 1. An adjustment mechanism is provided on one side of the outer wall of the screening chamber 2. A fixing mechanism is provided in the inner cavity of the screening chamber 2.

[0027] Please see Figure 1 and Figure 2 The fixing mechanism includes a fixing plate 7 and a fixing frame 8. The fixing plate 7 is fixedly installed on the inner wall of the other side of the screening chamber 2, and the fixing frame 8 is fixedly installed in the inner cavity of the screening chamber 2. The inclined screening plate 3 is embedded between the fixing plate 7 and the fixing frame 8 at its inclined upper end. The fixing mechanism ensures the structural strength of the screen plate after installation and avoids displacement during the screening process through the fitting design of the fixing plate 7 and the fixing frame 8.

[0028] Please see Figure 3 and Figure 4 The adjustment mechanism includes an electrically controlled lifting rod 9 and a fixed frame 10. The electrically controlled lifting rod 9 is fixedly installed on one side of the outer wall of the screening chamber 2. The fixed frame 10 is fixedly installed at the telescopic end of the electrically controlled lifting rod 9. The fixed frame 10 is fixedly connected to the outer wall of the lifting door 4. When the electrically controlled lifting rod 9 is activated, the lifting door 4 can be driven to move up and down through the fixed frame 10. An inclined discharge hopper 11 is fixedly installed on one side of the outer wall of the screening chamber 2. The inclined discharge hopper 11 is located outside the lifting door 4. An inclined guide hopper 12 is fixedly installed inside the support frame 1. The inclined guide hopper 12 is located at the bottom of the screening chamber 2. The flow guiding design of the inclined discharge hopper 11 and the guide hopper ensures that the material discharge path is clear and reduces dust diffusion and material waste.

[0029] Please see Figure 5 and Figure 6The drive mechanism includes a drive motor 13, a drive wheel 14, a driven wheel 15, a driven shaft 16, and a transmission belt 17. The drive motor 13 is fixedly installed inside the support frame 1. The drive wheel 14 is installed at the output end of the drive motor 13. The driven shaft 16 is rotatably mounted on one side above the support frame 1. The driven wheel 15 is fixedly sleeved on the side wall of the driven shaft 16. The transmission belt 17 is sleeved around the driven wheel 15 and the drive wheel 14. Starting the drive motor 13 drives the drive wheel 14 to rotate, which in turn drives the driven wheel 15 and the driven shaft 16 to rotate via the transmission belt 17. The drive mechanism also includes a fixed rod 18, an adjusting rod 19, and a connecting piece 20. The fixed rod 18 is fixedly installed at the end of the driven shaft 16. The other side of the screening chamber 2... A connector 20 is fixedly installed on the outer side wall. An adjusting rod 19 is rotatably installed between the connector 20 and the fixed rod 18. One end of the adjusting rod 19 is rotatably connected to the inside of the connector 20, and the other end of the adjusting rod 19 is rotatably connected to one end of the fixed rod 18. The fixed rod 18 rotates synchronously with the driven shaft 16. The sliding mechanism includes a slide rail 21 and a pulley 22. Two sets of pulleys 22 are symmetrically and rotatably installed on both sides of the top of the support frame 1. The bottom of the screening chamber 2 is symmetrically and fixedly installed with a slide rail 21. The top of the pulley 22 is embedded in and slides in the inner cavity of the slide rail 21, pushing the screening chamber 2 to make a transverse reciprocating motion on the pulley 22 along the slide rail 21 at the top of the support frame 1.

[0030] When the waste sand recycling device is in use, the working principle of the foundry waste sand recycling and processing device is as follows: First, the waste sand is put in through the top feed port of the screening bin 2. At the same time, the active motor 13 is started to drive the active wheel 14 to rotate. The driven wheel 15 and the driven shaft 16 are driven to rotate through the transmission belt 17. The fixed rod 18 rotates synchronously with the driven shaft 16. The rotating connection between the adjusting rod 19 and the connecting piece 20 pushes the screening bin 2 to make a horizontal reciprocating motion on the pulley 22 along the slide rail 21 at the top of the support frame 1.

[0031] The inclined screening plate 3 inside the screening bin 2 is inclined. Under the combined action of inertia and gravity, the waste sand slides along the screen plate. Small particles of waste sand fall through the screen holes into the bottom inclined guide hopper 12 and are eventually discharged into the collection equipment, while large particles of waste sand remain at the lower end of the inclined screening plate.

[0032] After screening, the waste collection frame is placed at the lower opening of the inclined discharge hopper 11. Then, the electric lifting rod 9 is retracted, and the lifting door 4 is raised through the fixed frame 10. At this time, large particles of waste sand are discharged into the waste collection frame through the inclined discharge hopper 11, completing the collection.

[0033] In addition, as the lifting door 4 rises, the connecting frame 5 drives the insert rod 6 to disengage from the filter hole at the lower end of the screening plate, releasing the screen plate from its fixed state. At this time, the operator can hook the screening plate so that its upper tilted end disengages from the fitting structure between the fixed plate 7 and the fixed frame 8, achieving quick disassembly. When replacing the new screening plate, its upper tilted end is inserted between the fixed plate 7 and the fixed frame 8, and the electric lifting rod 9 extends to push the lifting door 4 down. The insert rod 6 re-penetrates the filter hole at the lower end of the screen plate to complete the fixation, forming a closed-loop operation.

[0034] In summary, firstly, screening efficiency is improved: the design of the reciprocating motion mechanism and the inclined screening plate 3 enhances the screening effect through dynamic inertial force, which improves the screening efficiency compared with the traditional static screening. Small particles of waste sand can be continuously discharged into the collection equipment, while large particles of waste sand are accurately collected on the discharge side.

[0035] Secondly, the screen plate is easy to replace: it adopts a linkage fixing structure of lifting door 4-insertion rod 6-connecting frame 5, and only the electric lifting rod 9 needs to be controlled to realize the quick unlocking and locking of the screen plate, shortening the replacement time and avoiding the cumbersome process of traditional bolt fixing that requires tools.

[0036] Thirdly, structural stability is optimized: the sliding mechanism adopts a symmetrical layout of double slide rails 21 and four pulleys 22 to ensure the stability of the screening chamber 2 when it moves laterally and reduce the impact of equipment vibration on screening accuracy. The fixing mechanism, through the interlocking design of fixing plate 7 and fixing frame 8, ensures the structural strength of the screen plate after installation and avoids displacement during screening.

[0037] Fourth, automation and safety: The electronic control design of the drive mechanism and the adjustment mechanism realizes the full-process automated operation of screening, discharging and replacement, reducing the risk of manual intervention. The guiding design of the inclined discharge hopper 11 and the guide hopper ensures that the material discharge path is clear and reduces dust diffusion and material waste.

[0038] In summary, through mechanical linkage and structural innovation, this device achieves multiple technical benefits, including efficient screening, convenient maintenance, and stable operation. It is suitable for large-scale waste sand recycling and treatment in the foundry industry and has significant economic and environmental benefits.

[0039] Through the above steps, when the waste sand recycling device is in use, the waste sand is first fed into the top inlet of the screening bin 2. At the same time, the drive mechanism is started to push the screening bin 2 to move laterally back and forth along the sliding mechanism. The inclined screening plate 3 inside the screening bin 2 is in an inclined state. Under the combined action of inertia and gravity, the waste sand slides along the screen plate. Small particles of waste sand fall to the bottom through the screen holes and are eventually discharged into the collection equipment. Large particles of waste sand remain at the lower end of the inclined screening plate. After screening is completed, the waste collection frame is first placed at the opening position outside the lifting door 4. Then, the adjustment mechanism is started to drive the lifting door 4 to rise. At this time, the large particles of waste sand are discharged into the waste collection frame and the collection is completed. In addition, the lifting door... As the screen rises, the connecting frame 5 drives the insert rod 6 to disengage from the lower filter hole of the screen plate, releasing the screen plate from its fixed state. At this time, the operator can hook the screen plate to make its upper tilt disengage from the locking structure of the fixing mechanism, achieving quick disassembly. When replacing the screen plate, its upper tilt is inserted into the fixing mechanism, the adjusting mechanism extends to push the lifting door 4 down, and the insert rod 6 re-penetrates the lower filter hole of the screen plate to complete the fixing, forming a closed-loop operation. In summary, by adopting the linkage fixing structure of lifting door 4-insert rod 6-connecting frame 5, only the adjusting mechanism needs to be controlled to achieve quick unlocking and locking of the screen plate, shortening the time for a single replacement and avoiding the cumbersome process of traditional bolt fixing that requires tools.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A foundry waste sand recycling and treatment device, comprising a support frame (1), a horizontally movable screening chamber (2) provided on the top of the support frame (1), and an inclined screening plate (3) provided inside the screening chamber (2), characterized in that: It also includes a lifting door (4), a lifting door (4) is embedded and slidably installed on one side of the inner wall of the screening chamber (2), a connecting frame (5) is fixedly installed on the inner wall of the lifting door (4), and a plug rod (6) is fixedly installed on both sides of the bottom of the connecting frame (5). The plug rod (6) passes through the filter hole at the lower end of the inclined screening plate (3). A driving mechanism is installed on one side of the support frame (1), a sliding mechanism is installed between the bottom of the screening chamber (2) and the top of the support frame (1), an adjustment mechanism is installed on one side of the outer wall of the screening chamber (2), and a fixing mechanism is installed in the inner cavity of the screening chamber (2).

2. The foundry waste sand recycling and treatment device according to claim 1, characterized in that: The fixing mechanism includes a fixing plate (7) and a fixing frame (8). The fixing plate (7) is fixedly installed on the inner wall of the other side of the screening chamber (2), and the fixing frame (8) is fixedly installed in the inner cavity of the screening chamber (2). The inclined screening plate (3) is embedded between the fixing plate (7) and the fixing frame (8) at its inclined upper end.

3. The foundry waste sand recycling and treatment device according to claim 1, characterized in that: The adjustment mechanism includes an electric lifting rod (9) and a fixed frame (10). The electric lifting rod (9) is fixedly installed on the outer wall of one side of the screening chamber (2). The fixed frame (10) is fixedly installed at the telescopic end of the electric lifting rod (9). The fixed frame (10) is fixedly connected to the outer wall of the lifting door (4).

4. The foundry waste sand recycling and treatment device according to claim 1, characterized in that: An inclined discharge hopper (11) is fixedly installed on one side of the outer wall of the screening bin (2). The inclined discharge hopper (11) is located outside the lifting door (4). An inclined guide hopper (12) is fixedly installed inside the support frame (1). The inclined guide hopper (12) is located at the bottom of the screening bin (2).

5. The foundry waste sand recycling and treatment device according to claim 1, characterized in that: The drive mechanism includes a drive motor (13), a drive wheel (14), a driven wheel (15), a driven shaft (16), and a transmission belt (17). The drive motor (13) is fixedly installed inside the support frame (1). The drive wheel (14) is installed at the output end of the drive motor (13). The driven shaft (16) is rotatably installed on one side above the support frame (1). The driven wheel (15) is fixedly sleeved on the side wall of the driven shaft (16). The transmission belt (17) is sleeved on the outside of the driven wheel (15) and the drive wheel (14).

6. The foundry waste sand recycling and treatment device according to claim 5, characterized in that: The drive mechanism also includes a fixed rod (18), an adjusting rod (19), and a connecting piece (20). The fixed rod (18) is fixedly installed at the end of the driven shaft (16), and the connecting piece (20) is fixedly installed on the outer wall of the other side of the screening chamber (2). The adjusting rod (19) is rotatably installed between the connecting piece (20) and the fixed rod (18). One end of the adjusting rod (19) is rotatably connected to the inside of the connecting piece (20), and the other end of the adjusting rod (19) is rotatably connected to one end of the fixed rod (18).

7. The foundry waste sand recycling and treatment device according to claim 1, characterized in that: The sliding mechanism includes a slide rail (21) and a pulley (22). The support frame (1) has two sets of pulleys (22) symmetrically arranged on both sides of the top and rotating. The screening chamber (2) has a slide rail (21) symmetrically and fixedly arranged at the bottom. The pulley (22) is embedded in the top and slides in the inner cavity of the slide rail (21).

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