Magnetic separation device for recycling casting molding sand

Abstract

The utility model discloses a magnetic separation device for foundry molding sand recovery, which comprises a cylinder body, a feeding port is arranged at the top of the cylinder body, a crushing tank is fixed at the top of the cylinder body through a connecting channel, filter holes are uniformly arranged at the joint of the bottom of the crushing tank and the cylinder body, a crushing rod is arranged in the crushing tank, and the filter holes are communicated with the crushing rod. A magnetic separation assembly is arranged in the barrel, a conical discharge port is formed in the lower portion of the barrel, a first supporting frame and a second supporting frame are fixed to the outer wall of the barrel, the conical discharge port is fixed between the first supporting frame and the second supporting frame, a distance is formed between the barrel and the conical discharge port, and an annular frame is arranged at the distance. And a driving mechanism for achieving rotation of the crushing rod and the magnetic separation assembly is installed on the outer wall of the second supporting frame, and filtering holes are evenly formed in the top of the conical discharging opening. According to the utility model, the magnetic bar can be conveniently detached for cleaning, the adsorbed iron block can be taken out, and re-installation and re-use are facilitated.

Description

Technical Field

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

[0002] Casting refers to the process of melting solid metal into a liquid state and pouring it into a mold of a specific shape, allowing it to solidify and take shape. Thin-shell molds or cores are made using quartz sand, resulting in castings with clear outlines, smooth surfaces, and precise dimensions, requiring little or no machining. Therefore, shell casting is particularly suitable for producing large batches of castings of various alloys with high dimensional accuracy requirements, thin walls, and complex shapes.

[0003] The quartz sand used in each casting is treated as waste sand after use and cannot be recycled. This is mainly because the quartz sand contains a lot of metal after processing. This waste disposal method not only wastes resources but also directly increases production costs. Currently, magnetic separation devices are used to screen for metal, but it is difficult to disassemble and replace the magnetic rods. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a magnetic separation device for recovering foundry sand.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A magnetic separator for recovering foundry sand includes a cylinder with a feeding port at the top. A crushing tank is fixed to the top of the cylinder via a connecting channel. Filter holes are evenly distributed at the connection between the bottom of the crushing tank and the cylinder. A crushing rod is installed inside the crushing tank. A magnetic separator is installed inside the cylinder. A conical discharge port is located below the cylinder. A first support frame and a second support frame are fixed to the outer wall of the cylinder. The conical discharge port is fixed between the first and second support frames. A gap is formed between the cylinder and the conical discharge port, and a ring frame is installed at the gap. A drive mechanism for rotating the crushing rod and the magnetic separator is installed on the outer wall of the second support frame. Filter holes are evenly distributed at the top of the conical discharge port.

[0007] As a further embodiment of this utility model, two lifting assemblies for moving the ring frame are installed on the outer wall of the cylinder. The lifting assembly includes a fork mounting bracket fixed to the outer wall of the cylinder, and an electric telescopic rod is fixed on the fork mounting bracket. The output shaft of the electric telescopic rod is fixed to the ring frame through a connecting block.

[0008] As a further embodiment of this utility model, the driving mechanism includes a driving motor, the output shaft of which is fixed with a first transmission wheel. The first transmission wheel is connected to a second transmission wheel via a transmission belt. The second transmission wheel is coaxially fixed with the crushing rod. The driving motor is connected to the magnetic separation assembly via a transmission mechanism. The driving mechanism includes a driving motor, a first transmission wheel, a transmission belt, and a second transmission wheel. The transmission mechanism includes a first bevel gear, a second bevel gear, and a second connecting rod. Through the above design, the rotation of the crushing rod and the magnetic rod can be synchronously realized when the driving motor is working, achieving integrated crushing and screening.

[0009] As a further embodiment of this utility model, a through groove is provided on the second support frame, the transmission belt passes through the through groove, and the drive motor is fixed to the outer wall of the second support frame.

[0010] As a further embodiment of this utility model, the magnetic separation assembly includes a U-shaped frame fixed to the top of the inner wall of the cylinder. The bottom of the U-shaped frame is rotatably connected to a first connecting rod via a shaft. An installation block is fixed to the bottom of the first connecting rod. Several magnetic rods are evenly installed on the outer wall of the installation block. Screw holes are evenly opened on the outer wall of the installation block. Screw heads that are adapted to the screw holes are fixed on the magnetic rods.

[0011] As a further embodiment of this utility model, the transmission mechanism includes a second connecting rod, and a second bevel gear is fixed to one end of the second connecting rod near the first connecting rod. A first bevel gear is fixedly sleeved on the outer wall of the first connecting rod, and the first bevel gear meshes with the second bevel gear. The other end of the second connecting rod is coaxially fixed with the first transmission wheel.

[0012] As a further embodiment of this invention, the outer wall of the ring frame has a notch corresponding to the position of the second connecting rod, which will not hinder the movement of the ring frame.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention utilizes a cylindrical body, connecting channel, crushing tank, conical discharge port, ring frame, lifting assembly, driving mechanism, crushing rod, first support frame, and second support frame. This allows the fed casting sand to be crushed by the crushing rod, then enters the cylindrical body through filter holes. Inside the cylindrical body, it is stirred and adsorbed by a magnetic rod located at the conical discharge port. While rotating and stirring, the magnetic rod adsorbs small iron fragments from the casting sand. The adsorbed casting sand falls through the filter holes at the conical discharge port. Lifting the ring frame between the cylindrical body and the conical discharge port exposes the magnetic rod, which is connected to a screw hole on the mounting block via a screw head. This facilitates disassembly of the magnetic rod for cleaning and removal of the adsorbed iron fragments, allowing for easy reinstallation and reuse.

[0015] This utility model features a drive mechanism comprising a drive motor, a first transmission wheel, a transmission belt, and a second transmission wheel. The transmission mechanism comprises a first bevel gear, a second bevel gear, and a second connecting rod. Through this design, the rotation of the crushing rod and the magnetic rod can be synchronously achieved when the drive motor is operating, thus integrating crushing and screening. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a magnetic separation device for recovering foundry sand proposed in this utility model;

[0017] Figure 2 This is a partially unfolded three-dimensional structural diagram of a magnetic separation device for recovering foundry sand proposed in this utility model;

[0018] Figure 3 This is a partial three-dimensional structural diagram of a magnetic separation device for recovering foundry sand according to this utility model;

[0019] Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of a magnetic separation device for recovering foundry sand proposed in this utility model.

[0020] In the diagram: 1. Cylinder; 2. Connecting channel; 3. Crushing tank; 4. Conical discharge port; 5. Drive mechanism; 501. Drive motor; 502. First transmission wheel; 503. Transmission belt; 504. Second transmission wheel; 6. First support frame; 7. Second support frame; 701. Through slot; 8. Crushing rod; 9. Lifting assembly; 901. Fork mounting frame; 902. Electric telescopic rod; 903. Connecting block; 904. Ring frame; 10. U-shaped frame; 11. First connecting rod; 12. First bevel gear; 13. Second bevel gear; 14. Mounting block; 15. Magnetic rod; 16. Screw head; 17. Notch. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Reference Figure 1-4A magnetic separation device for recovering foundry sand includes a cylinder 1 with a feeding port at the top. A crushing tank 3 is fixed to the top of the cylinder 1 via a connecting channel 2. Filter holes are evenly distributed at the connection between the bottom of the crushing tank 3 and the cylinder 1. A crushing rod 8 is installed inside the crushing tank 3. A magnetic separation component is installed inside the cylinder 1. A conical discharge port 4 is installed below the cylinder 1. A first support frame 6 and a second support frame 7 are fixed to the outer wall of the cylinder 1. The conical discharge port 4 is fixed between the first support frame 6 and the second support frame 7. A gap is formed between the cylinder 1 and the conical discharge port 4, and a ring frame 904 is installed at the gap. A drive mechanism 5 is installed on the outer wall of the second support frame 7 to realize the rotation of the crushing rod 8 and the magnetic separation component. Filter holes are evenly distributed at the top of the conical discharge port 4.

[0024] In this embodiment, two lifting components 9 are installed on the outer wall of the cylinder 1 to realize the movement of the ring frame 904. The lifting component 9 includes a fork mounting bracket 901 fixed on the outer wall of the cylinder 1. An electric telescopic rod 902 is fixed on the fork mounting bracket 901. The output shaft of the electric telescopic rod 902 is fixed to the ring frame 904 through a connecting block 903.

[0025] In this embodiment, the drive mechanism 5 includes a drive motor 501, the output shaft of which is fixed with a first transmission wheel 502. The first transmission wheel 502 is connected to a second transmission wheel 504 via a transmission belt 503. The second transmission wheel 504 is coaxially fixed with the crushing rod 8. The drive motor 501 is connected to the magnetic separation assembly via a transmission mechanism. The drive mechanism 5 includes a drive motor 501, a first transmission wheel 502, a transmission belt 503, and a second transmission wheel 504. The transmission mechanism includes a first bevel gear 12, a second bevel gear 13, and a second connecting rod. Through the above design, the rotation of the crushing rod 8 and the magnetic rod 15 can be realized synchronously when the drive motor 501 is working, achieving integrated crushing and screening.

[0026] In this embodiment, a through groove 701 is provided on the second support frame 7, the transmission belt 503 is arranged through the through groove 701, and the drive motor 501 is fixed to the outer wall of the second support frame 7.

[0027] In this embodiment, the magnetic separation assembly includes a U-shaped frame 10 fixed to the top of the inner wall of the cylinder 1. The bottom of the U-shaped frame 10 is rotatably connected to a first connecting rod 11 via a shaft. The bottom of the first connecting rod 11 is fixed with a mounting block 14. A plurality of magnetic rods 15 are evenly installed on the outer wall of the mounting block 14. Screw holes are evenly opened on the outer wall of the mounting block 14. Screw heads 16 that are adapted to the screw holes are fixed on the magnetic rods 15.

[0028] In this embodiment, the transmission mechanism includes a second connecting rod, and a second bevel gear 13 is fixed to one end of the second connecting rod near the first connecting rod 11. A first bevel gear 12 is fixedly sleeved on the outer wall of the first connecting rod 11, and the first bevel gear 12 meshes with the second bevel gear 13. The other end of the second connecting rod is coaxially fixed with the first transmission wheel 502.

[0029] In this embodiment, a notch 17 is provided on the outer wall of the ring frame 904 corresponding to the position of the second connecting rod, which will not hinder the movement of the ring frame 904.

[0030] Working principle: The system comprises a cylinder 1, connecting channel 2, crushing tank 3, conical outlet 4, ring frame 904, lifting assembly 9, drive mechanism 5, crushing rod 8, first support frame 6, and second support frame 7. The cylinder 1 and conical outlet 4 are fixed between the first support frame 6 and the second support frame 7. The drive mechanism 5 rotates the crushing rod 8 and the magnetic separation assembly within the crushing tank 3. The magnetic separation assembly includes a first connecting rod 11, mounting block 14, magnetic rod 15, and screw head 16. The lifting assembly 9 includes a fork mounting frame 901, an electric telescopic rod 902, and a connecting block 903. The design described above allows the cast sand to be crushed by the crushing rod 8. After crushing, the sand enters the cylinder 1 through the filter holes and is stirred and adsorbed by the magnetic rod 15 located on the conical discharge port 4 inside the cylinder 1. The magnetic rod 15 can adsorb the broken iron pieces in the cast sand while rotating and stirring. The adsorbed cast sand falls through the filter holes on the conical discharge port 4. By operating the electric telescopic rod 902, the ring frame 904 between the cylinder 1 and the conical discharge port 4 is lifted, exposing the magnetic rod 15. It is connected to the screw hole on the mounting block 14 through the screw head 16, which facilitates the disassembly of the magnetic rod 15 for cleaning and removal of the adsorbed iron pieces, making it easy to reinstall and use.

[0031] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A magnetic separator for recovering foundry sand, comprising a cylinder (1), wherein the top of the cylinder (1) is provided with a feeding port, characterized in that, The top of the cylinder (1) is fixed with a crushing tank (3) through a connecting channel (2). The bottom of the crushing tank (3) is evenly provided with filter holes at the connection between it and the cylinder (1). The crushing tank (3) is provided with a crushing rod (8). The cylinder (1) is provided with a magnetic separation component. The bottom of the cylinder (1) is provided with a conical outlet (4). The outer wall of the cylinder (1) is fixed with a first support frame (6) and a second support frame (7). The conical outlet (4) is fixed between the first support frame (6) and the second support frame (7). A gap is formed between the cylinder (1) and the conical outlet (4), and a ring frame (904) is provided at the gap. The outer wall of the second support frame (7) is equipped with a drive mechanism (5) to realize the rotation of the crushing rod (8) and the magnetic separation component. The top of the conical outlet (4) is evenly provided with filter holes.

2. The magnetic separation device for recovering foundry sand according to claim 1, characterized in that, Two lifting assemblies (9) for moving the ring frame (904) are installed on the outer wall of the cylinder (1). The lifting assembly (9) includes a fork mounting bracket (901) fixed to the outer wall of the cylinder (1). An electric telescopic rod (902) is fixed on the fork mounting bracket (901). The output shaft of the electric telescopic rod (902) is fixed to the ring frame (904) through a connecting block (903).

3. The magnetic separation device for recovering foundry sand according to claim 2, characterized in that, The drive mechanism (5) includes a drive motor (501), the output shaft of the drive motor (501) is fixed with a first transmission wheel (502), the first transmission wheel (502) is connected to a second transmission wheel (504) through a transmission belt (503), the second transmission wheel (504) is coaxially fixed with the crushing rod (8), and the drive motor (501) is connected to the magnetic separation assembly through a transmission mechanism.

4. The magnetic separation device for recovering foundry sand according to claim 3, characterized in that, The second support frame (7) has a through groove (701), the transmission belt (503) passes through the through groove (701), and the drive motor (501) is fixed to the outer wall of the second support frame (7).

5. The magnetic separation device for recovering foundry sand according to claim 4, characterized in that, The magnetic separation assembly includes a U-shaped frame (10) fixed to the top of the inner wall of the cylinder (1). The bottom of the U-shaped frame (10) is rotatably connected to a first connecting rod (11) via a shaft. The bottom of the first connecting rod (11) is fixed with an installation block (14). Several magnetic rods (15) are evenly installed on the outer wall of the installation block (14). Screw holes are evenly opened on the outer wall of the installation block (14). Screw heads (16) that are adapted to the screw holes are fixed on the magnetic rods (15).

6. The magnetic separation device for recovering foundry sand according to claim 5, characterized in that, The transmission mechanism includes a second connecting rod, and a second bevel gear (13) is fixed at one end of the second connecting rod near the first connecting rod (11). A first bevel gear (12) is fixedly sleeved on the outer wall of the first connecting rod (11), and the first bevel gear (12) meshes with the second bevel gear (13). The other end of the second connecting rod is coaxially fixed with the first transmission wheel (502).

7. The magnetic separation device for recovering foundry sand according to claim 6, characterized in that, The outer wall of the ring frame (904) has a notch (17) corresponding to the position of the second connecting rod.

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