Magnetic separation device for molding sand recovery

Abstract

The magnetic separation device comprises a magnetic separation box, the upper end and the lower end of the magnetic separation box are provided with a feeding port and a discharging port respectively, a magnet assembly is arranged in the magnetic separation box in a sliding mode, the magnetic separation box is provided with a first opening for the magnet assembly to enter and exit, and a sealing assembly is arranged at the first opening. According to the magnetic separation device, iron impurities in molding sand can be effectively cleaned, and the magnet assembly arranged in a sliding manner can be moved out of the magnetic separation box after the device is used for a period of time, so that a worker can conveniently clean the magnet assembly regularly, the magnetic separation quality of the device is ensured, and the working efficiency is improved. And the cleaning difficulty of a worker on the magnet assembly is reduced.

Description

Technical Field

[0001] This utility model relates to the field of molding sand production technology, and in particular to a magnetic separation device for molding sand recycling. Background Technology

[0002] Molding sand, also known as casting sand or simply molding sand, refers to the raw sand used in casting production to manufacture sand molds and sand cores. It is mainly composed of quartz particles with relatively uniform particle size. During the production process, iron impurities may be present in the sand, so magnetic separation is required to remove these iron impurities. Magnetic separation devices are often used in this process.

[0003] The magnets in existing magnetic separators are located inside the device and cannot be easily moved. Furthermore, after a period of use, the magnets become covered with iron impurities, which reduces their magnetic attraction. To ensure the performance of the device, they need to be cleaned periodically. Since the magnets cannot be moved, this increases the difficulty for workers to clean them. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a magnetic separator for molding sand recycling. This device can effectively clean iron impurities in the molding sand. After a period of use, the device can also move the slidingly set magnet assembly out of the magnetic separator box, which facilitates the staff to clean the magnet assembly regularly. This not only ensures the magnetic separation quality of the device, but also reduces the difficulty of cleaning the magnet assembly for the staff.

[0006] (II) Technical Solution

[0007] This utility model provides a magnetic separator for recycling molding sand, including a magnetic separator box. The upper and lower ends of the magnetic separator box are respectively provided with an inlet and an outlet. A magnetic assembly is slidably arranged inside the magnetic separator box. The magnetic separator box is provided with a first opening for the magnetic assembly to enter and exit, and a sealing assembly is provided at the first opening.

[0008] Preferably, the magnet assembly includes an electromagnet and a mounting bracket, the mounting bracket being slidably disposed within the magnetic separator, the electromagnet being disposed between the mounting brackets, and the mounting bracket being movable to extend out of the first opening.

[0009] Preferably, it also includes sliders, and two grooves are provided at intervals on the inner wall of the magnetic separator, both of which extend to the first opening. The sliders are slidably disposed in the grooves, and the two sliders are respectively connected to the two ends of the mounting frame.

[0010] Preferably, the sealing assembly includes a sealing plate, which is slidably disposed on the outer end of the magnetic separator. The sealing plate is movable to the first opening to seal the first opening. The magnetic separator is provided with a limiting unit for limiting the position of the sealing plate.

[0011] Preferably, it further includes a mounting block, which is connected to the outer end of the magnetic separator and located below the sealing plate. The mounting block is provided with two positioning rods spaced apart. The sealing plate is provided with a first through hole for the positioning rods to pass through. The positioning rods pass through the first through hole and are slidably connected to the sealing plate.

[0012] Preferably, the limiting unit includes a mounting plate, a limiting rod, a transmission plate, and a spring. The mounting plate is spaced apart from the magnetic separator and connected to the magnetic separator via a fixing block. The sealing plate is located between the mounting plate and the magnetic separator. The mounting plate has a second through hole, and the sealing plate has a third through hole corresponding to the second through hole. The limiting rod is slidably disposed in the second through hole, with one end extending into the third through hole and slidably connected to the inner wall. The other end of the limiting rod is provided with a transmission plate. The spring is located between the mounting plate and the transmission plate, with its two ends respectively connected to the transmission plate and the mounting plate.

[0013] Preferably, the upper end of the magnetic separator is provided with a feed hopper, and the feed inlet is connected to the feed hopper.

[0014] Preferably, the bottom wall of the magnetic separator is inclined from top to bottom toward the discharge port.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0016] In this invention, the device can effectively clean iron impurities in the molding sand. After a period of use, the device can also move the sliding magnet assembly out of the magnetic separator, making it convenient for staff to clean the magnet assembly regularly. This ensures the magnetic separation quality of the device and reduces the difficulty of cleaning the magnet assembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure inside the first opening of a magnetic separator for recycling molding sand according to this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of a magnetic separator for recycling molding sand proposed in this utility model.

[0019] Figure 3 This is a side view of the magnetic separation device for recycling molding sand proposed in this utility model.

[0020] Figure 4 This is a partially enlarged structural diagram of point A in a magnetic separator for recycling molding sand proposed in this utility model.

[0021] Reference numerals in the attached diagram: 1. Magnetic separator; 2. Electromagnet; 3. Mounting bracket; 4. Slider; 5. Sealing plate; 6. Mounting block; 7. Positioning rod; 8. Fixing block; 9. Mounting plate; 10. Limiting rod; 11. Transmission plate; 12. Spring; 13. Feed hopper. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 1-4 As shown, the present invention proposes a magnetic separation device for recycling molding sand, including a magnetic separation box 1. The upper and lower ends of the magnetic separation box 1 are respectively provided with a feed port and a discharge port. A magnetic assembly is slidably arranged inside the magnetic separation box 1. The magnetic separation box 1 is provided with a first opening for the magnetic assembly to enter and exit, and a sealing assembly is provided at the first opening.

[0026] In this invention, when the device is needed to clean iron impurities in molding sand, the molding sand is fed into the magnetic separator 1 through the inlet, and the iron impurities in the molding sand are attracted by the magnetic component inside. After the impurities are removed, the molding sand falls out through the outlet for the next step. After a period of use, the sealing component can be removed from the first opening, allowing the sliding magnetic component to be moved out of the magnetic separator 1. Once the magnetic component is moved out of the magnetic separator 1, it is convenient for workers to clean it. After cleaning, it is moved back into the magnetic separator 1, and the sealing component is used to seal the first opening again, effectively preventing the molding sand from falling out of the first opening. This device can effectively clean iron impurities in the molding sand, and after a period of use, the sliding magnetic component can be moved out of the magnetic separator 1, making it convenient for workers to clean the magnetic component regularly. This ensures the magnetic separation quality of the device and reduces the difficulty of cleaning the magnetic component.

[0027] In an optional embodiment, the magnet assembly includes an electromagnet 2 and a mounting bracket 3. The mounting bracket 3 is slidably disposed within the magnetic separator 1, and the electromagnet 2 is disposed between the mounting brackets 3. The mounting bracket 3 can be moved out of the first opening. By moving the mounting bracket 3, the electromagnet 2 can be slid. After the mounting bracket 3 moves the electromagnet 2 out of the magnetic separator 1, the power to the electromagnet 2 is turned off, and the iron impurities on the electromagnet 2 can fall off. The staff only needs to clean up the fallen iron impurities, thereby reducing the workload of the staff when cleaning the magnet assembly.

[0028] In an optional embodiment, the device further includes a slider 4. Two grooves are provided at intervals on the inner wall of the magnetic separator 1. Both grooves extend to the first opening. The slider 4 is slidably disposed in the grooves. The two sliders 4 are respectively connected to both ends of the mounting frame 3. By sliding the two sliders 4 in the grooves and connecting the two sliders 4 to the mounting frame 3, the stability of the mounting frame 3 sliding in the magnetic separator 1 can be improved.

[0029] In an optional embodiment, the sealing assembly includes a sealing plate 5, which is slidably disposed on the outer end of the magnetic separator 1. The sealing plate 5 is movable to the first opening to seal the first opening. The magnetic separator 1 is provided with a limiting unit for limiting the sealing plate 5. The slidably disposed sealing plate 5 can effectively seal the first opening, and the limiting unit can effectively improve the stability of the sealing plate 5 when sealing the first opening. When it is necessary to remove the seal on the first opening, there is no need to disassemble the sealing plate 5. It is only necessary to remove the limiting unit from the sealing plate 5 and then slide the sealing plate 5, thereby reducing the stability when the operator removes the seal.

[0030] In an optional embodiment, a mounting block 6 is further included. The mounting block 6 is connected to the outer end of the magnetic separator 1 and is located below the sealing plate 5. Two positioning rods 7 are spaced apart on the mounting block 6. The sealing plate 5 is provided with a first through hole through which the positioning rods 7 pass. The positioning rods 7 pass through the first through hole and are slidably connected to the sealing plate 5. By sliding the positioning rods 7 in the first through hole, the movement path of the sealing plate 5 can be effectively limited, thereby improving the stability of the sealing plate 5 when sliding up and down.

[0031] In an optional embodiment, the limiting unit includes a mounting plate 9, a limiting rod 10, a transmission plate 11, and a spring 12. The mounting plate 9 is spaced apart from the magnetic separator 1 and connected to the magnetic separator 1 via a fixing block 8. The sealing plate 5 is located between the mounting plate 9 and the magnetic separator 1. The mounting plate 9 has a second through hole, and the sealing plate 5 has a third through hole corresponding to the second through hole. The limiting rod 10 is slidably disposed in the second through hole, with one end extending into the third through hole and slidably connected to the inner wall. The other end of the limiting rod 10 is provided with the transmission plate 11. The spring 12 is located between the mounting plate 9 and the transmission plate 11, with its two ends respectively connected to the transmission plate 11 and the mounting plate 9. When it is necessary to limit the sealing plate 5, the sealing plate 5 is moved between the mounting plate 9 and the magnetic separator 1, so that its third through hole is connected to the second through hole. Correspondingly, during movement, the transmission plate 11 is moved to drive the limiting rod 10 to move, ensuring that the limiting rod 10 does not obstruct the movement of the sealing plate 5. When the third through hole aligns with the second through hole, the transmission plate 11 is released, and the transmission plate 11 resets under the action of the spring 12, driving the limiting rod 10 to reset as well. Thus, the limiting rod 10 enters the third through hole under the action of the spring 12 and fits against its inner wall, thereby completing the limitation of the sealing plate 5. Furthermore, the action of the spring 12 can effectively improve the stability of the movement of the limiting rod 10, thereby improving the stability of the sealing plate 5 after limitation. Moreover, by limiting the sealing plate 5 with the limiting rod 10, when the seal of the sealing plate 5 is removed, it is only necessary to move the transmission plate 11 to drive the limiting rod 10 out of the third through hole to remove the limitation of the sealing plate 5. This is very simple and can effectively reduce the workload of the staff when removing the seal of the sealing plate 5.

[0032] In an optional embodiment, the upper end of the magnetic separator 1 is provided with a feed hopper 13, and the feed inlet is connected to the feed hopper 13. The feed hopper 13 can effectively facilitate the workers to feed the molding sand.

[0033] In an optional embodiment, the bottom wall of the magnetic separator 1 is inclined from top to bottom toward the discharge port, so that the molding sand in the magnetic separator 1 can slide toward the discharge port under the action of gravity, effectively preventing the molding sand from accumulating in the magnetic separator 1.

[0034] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A magnetic separator for recovering molding sand, characterized in that, The magnetic separator includes a magnetic separator box (1), with an inlet and an outlet at its upper and lower ends, respectively. A magnetic assembly is slidably disposed inside the magnetic separator box (1), and a first opening is provided on the magnetic separator box (1) for the magnetic assembly to enter and exit. A sealing assembly is provided at the first opening.

2. The magnetic separator for recovering molding sand according to claim 1, characterized in that, The magnet assembly includes an electromagnet (2) and a mounting bracket (3). The mounting bracket (3) is slidably disposed inside the magnetic separator (1). The electromagnet (2) is disposed between the mounting brackets (3). The mounting bracket (3) can be moved out of the first opening.

3. The magnetic separator for recovering molding sand according to claim 2, characterized in that, It also includes a slider (4), and two grooves are provided at intervals on the inner wall of the magnetic separator (1). Both grooves extend to the first opening. The slider (4) is slidably disposed in the grooves. The two sliders (4) are respectively connected to the two ends of the mounting bracket (3).

4. The magnetic separator for recovering molding sand according to claim 1, characterized in that, The sealing assembly includes a sealing plate (5), which is slidably disposed on the outer end of the magnetic separator (1). The sealing plate (5) can be moved to the first opening to seal the first opening. The magnetic separator (1) is provided with a limiting unit for limiting the sealing plate (5).

5. A magnetic separator for recovering molding sand according to claim 4, characterized in that, It also includes an installation block (6), which is connected to the outer end of the magnetic separator (1) and located below the sealing plate (5). The installation block (6) is provided with two positioning rods (7) spaced apart. The sealing plate (5) is provided with a first through hole for the positioning rods (7) to pass through. The positioning rods (7) pass through the first through hole and are slidably connected to the sealing plate (5).

6. A magnetic separator for recovering molding sand according to claim 4, characterized in that, The limiting unit includes a mounting plate (9), a limiting rod (10), a transmission plate (11), and a spring (12). The mounting plate (9) is spaced apart from the magnetic separator (1) and connected to the magnetic separator (1) through a fixing block (8). The sealing plate (5) is located between the mounting plate (9) and the magnetic separator (1). The mounting plate (9) has a second through hole, and the sealing plate (5) has a third through hole corresponding to the second through hole. The limiting rod (10) is slidably disposed in the second through hole, with one end extending into the third through hole and slidably connected to the inner wall. The other end of the limiting rod (10) is provided with a transmission plate (11). The spring (12) is located between the mounting plate (9) and the transmission plate (11), with its two ends respectively located on the transmission plate (11) and the mounting plate (9).

7. A magnetic separator for recovering molding sand according to claim 1, characterized in that, The upper end of the magnetic separator (1) is provided with a feed hopper (13), and the feed inlet is connected to the feed hopper (13).

8. A magnetic separator for recovering molding sand according to claim 1, characterized in that, The bottom wall of the magnetic separator (1) is inclined from top to bottom toward the discharge port.

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