A dry magnetic separation device for metal powder

Abstract

The utility model relates to the technical fields of metallurgy especially is a kind of metal powder dry-type magnetic separation device, it is directly replaced damaged magnet when the magnet is by multiple magnets, and magnet on certain magnet can be directly replaced damaged magnet, and whole magnet does not need to be replaced, it is convenient to use, and the cost of replacement is reduced, and practicality is high;Including bottom plate, magnet, drum, support shaft, waste collection box and metal powder collection box, chamber is provided in drum, the front end of drum is provided with the opening that is communicated with chamber, magnet is located in the chamber of drum, magnet is fixedly installed on support shaft, magnet is close to the right part of drum chamber, waste collection box and metal powder collection box are respectively located the left and right sides below drum;It further includes rotating mechanism, fixed mechanism, feeding mechanism, nut and fixed plate, the magnet includes multiple magnets, multiple magnets are all eccentric structure, and fixed plate is fixedly installed at the front of support shaft.

Description

Technical Field

[0001] This utility model relates to the technical field of metallurgy, and in particular to a dry magnetic separation device for metal powder. Background Technology

[0002] In powder metallurgy production, it is necessary to purify iron-based, nickel-based, and other magnetic powders to remove non-magnetic impurities (such as debris and oxide scale from mold wear) mixed in during production, in order to ensure the mechanical properties and precision of the final pressed parts (such as gears, bearings, and structural components). In the prior art, utility model patent application number 201921636473.5 discloses a high-efficiency magnetic separator, which mainly consists of a magnetic separator drum and a magnet. The magnet is located inside the magnetic separator drum and has a semi-circular structure. The position of the magnet remains unchanged, while the magnetic separator drum rotates relative to the magnet. During use, the metal material to be screened is slowly poured onto the magnetic separator drum near the magnet, while the magnetic separator drum rotates. The metal material is attracted by the magnet inside the magnetic separator drum chamber, causing the metal material to adhere to the magnetic separator drum. Non-metallic impurities slide off the magnetic separator drum. As the drum rotates, the metal material adsorbed on it rotates to one side of the raw material magnet. Then, the metal material adsorbed on the drum falls off, completing the separation of metal material from non-metallic impurities. However, the following problems exist during its use: because the magnet inside the magnetic separator drum is a one-piece structure, as the usage time increases, when an irreparable damage occurs to a part of the magnet, the entire magnet must be replaced, which is inconvenient to use, has high replacement costs, and poor reliability. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a dry magnetic separator for metal powder that is easy to use, reduces replacement costs, and is highly practical because the magnet is composed of multiple magnets. When one of the magnets is damaged, only the damaged magnet needs to be replaced, without replacing the entire magnet.

[0004] This utility model discloses a dry magnetic separator for metal powder, comprising a base plate, a magnet, a drum, a support shaft, a waste collection box, and a metal powder collection box. The drum has a chamber, and its front end has an opening communicating with the chamber. The magnet is located within the drum's chamber and is fixedly mounted on the support shaft, positioned near the right side of the drum's chamber. The waste collection box and the metal powder collection box are located on the left and right sides below the drum, respectively. The device also includes a rotating mechanism, a fixing mechanism, a feeding mechanism, a nut, and a fixing plate. The magnet comprises multiple magnets, all of which are eccentric in structure. The fixing plate is fixedly mounted... At the front of the support shaft, the support shaft is fixedly mounted on a fixing mechanism. Multiple magnets are stacked together and fitted onto the support shaft, all located within the cavity of the support shaft. The front of the support shaft has threads, and a nut is screwed onto these threads, pressing the magnets against a fixing plate. The magnets are located near the left side of the drum cavity. A feeding mechanism is located above the drum and provides feeding functionality. The drum is mounted on a rotating mechanism for rotating it. When screening impurities in metal powder, the metal powder to be magnetically separated is first passed through... The feeding mechanism slowly adds material to the upper right side of the drum, causing the metal powder to fall slowly onto the outer wall of the drum near the magnet. The metal powder is attracted to the drum surface by the magnet's magnetic force, while non-magnetic impurities in the powder slide off the drum surface into the waste collection box due to gravity. Simultaneously, the rotating mechanism causes the drum to rotate, rotating the adsorbed metal powder. When the metal powder on the drum rotates away from the magnet, the magnetic force decreases, causing the adsorbed metal powder to fall onto the drum surface and be collected in the metal powder collection box, thus completing the magnetic separation of the metal powder. When one of the multiple magnets is damaged, the nut is rotated to disengage it from the magnets. The damaged magnet is then removed from the support shaft, and a new magnet is installed. The nut is then rotated again to secure the magnets to the fixing plate. Since the magnet is composed of multiple magnets, when one magnet is damaged, only the damaged magnet needs to be replaced, without replacing the entire magnet. This method is convenient, reduces replacement costs, and is highly practical.

[0005] Preferably, the fixing mechanism includes a linear module, a movable plate, a support plate, and a three-jaw chuck. The linear module is fixedly mounted on the base plate, and the movable plate is provided on the linear module. The linear module is used to move the movable plate back and forth. The support plate is fixedly mounted on the upper end of the movable plate, and the three-jaw chuck is fixedly mounted on the support plate. The front part of the support shaft is clamped and fixed by the three-jaw chuck. When it is necessary to replace the magnet, the linear module is opened, and the linear module drives the movable plate to move forward. The movable plate drives the support plate and the three-jaw chuck to move forward. The three-jaw chuck drives the support shaft to move forward, and the support shaft drives multiple magnets to move forward, so that multiple magnets can be removed through the opening at the front end of the roller, which facilitates the replacement of the magnets.

[0006] Preferably, the rotating mechanism includes a vertical plate, a base, and a servo motor. The front and rear parts of the roller are rotatably mounted on the base and the vertical plate, respectively. The servo motor is fixedly mounted on the vertical plate, and the power output end of the servo motor is connected to the roller. A gearbox is provided on the servo motor. When driving the roller to rotate clockwise, the servo motor is turned on, and the servo motor drives the roller to rotate. This facilitates the rotation of the roller.

[0007] Preferably, the system also includes multiple support rods and multiple omnidirectional rollers. The support rods are all fixedly installed at the rear of the support shaft and are evenly distributed around the circumference of the support shaft. The omnidirectional rollers are respectively installed on the support rods and are in contact with the inner sidewall of the roller. With the above arrangement, the front part of the support shaft is clamped and fixed by a three-jaw chuck, and the rear part of the support shaft is supported by multiple support rods and multiple omnidirectional rollers, so that the forces on the front and rear parts of the support shaft are more balanced and the deformation of the support shaft during use is reduced.

[0008] Preferably, the system also includes a guide plate, with both the left and right sides of the guide plate being inclined surfaces. A bracket is provided on the guide plate, and the guide plate is fixedly installed on the base plate by the bracket. The guide plate is located below the drum, and the left and right ends of the guide plate are located above the metal powder collection box and the waste collection box, respectively. When the metal powder is magnetically separated on the drum, the metal powder falls to the upper right side of the drum, while non-metallic impurities slide down to the upper right side of the guide plate due to gravity. Then, the non-metallic impurities slide down to the waste collection box through the right side of the guide plate. At the same time, the drum rotates, and the drum drives the metal powder adsorbed on the surface to rotate until the metal powder on the drum rotates to the left side of the drum. At this time, the metal powder is farther away from the magnet, and the magnetic force decreases. Then, the metal powder falls to the left side of the guide plate under the action of gravity, and then the metal powder slides down to the metal powder collection box for collection.

[0009] Preferably, it also includes a feeding box and a guide plate. The lower end of the feeding box is provided with multiple discharge pipes, each of which is equipped with a valve. The guide plate is installed at an incline at the lower end of the feeding box, located below the multiple discharge pipes, with its lower end located on the right side above the support shaft. The feeding box is fixedly installed on the vertical plate and the base. The metal powder to be magnetically separated is added to the feeding box. Then, the valves on the multiple discharge pipes at the lower part of the feeding box are opened, and the speed of metal powder discharge is controlled. The metal powder then slides onto the guide plate and then slides onto the drum for magnetic separation, which facilitates the feeding of metal powder.

[0010] Preferably, baffles are provided at both the front and rear parts of the roller; this arrangement prevents metal powder falling onto the roller from falling off at the front and rear sides of the roller, thus improving reliability.

[0011] Preferably, the surfaces of the plurality of omnidirectional rollers are provided with a wear-resistant coating; the wear resistance of the plurality of omnidirectional rollers is improved by the above provision.

[0012] Compared with the prior art, the advantages of this utility model are as follows: Since the magnet is composed of multiple magnets, when a magnet on the magnet is damaged, the damaged magnet can be replaced directly without replacing the entire magnet. This makes it convenient to use, reduces replacement costs, and is highly practical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 It is a structural diagram of components such as rollers, servo motors, and guide vanes; Figure 4 It is a cross-sectional structural diagram of the roller, magnet, and feeding box, etc. Figure 5 It is a structural diagram of multiple magnets, support shafts, and a three-jaw chuck, etc. Figure 6 This is a cross-sectional view of the roller.

[0014] The following are labels in the attached diagram: 1. Base plate; 2. Roller; 3. Support shaft; 4. Magnet; 5. Nut; 6. Fixing plate; 7. Waste collection box; 8. Metal powder collection box; 9. Linear module; 10. Moving plate; 11. Support plate; 12. Three-jaw chuck; 13. Vertical plate; 14. Base; 15. Servo motor; 16. Support rod; 17. Universal roller; 18. Guide plate; 19. Feeding box; 20. Guide plate. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0016] like Figures 1 to 6 The present invention relates to a dry magnetic separator for metal powder, comprising a base plate 1, a magnet, a drum 2, a support shaft 3, a waste collection box 7, and a metal powder collection box 8. The drum 2 has a chamber, and its front end has an opening communicating with the chamber. The magnet is located within the chamber of the drum 2 and is fixedly mounted on the support shaft 3, near the right side of the drum 2 chamber. The waste collection box 7 and the metal powder collection box 8 are located on the left and right sides below the drum 2, respectively. The device also includes a rotating mechanism, a fixing mechanism, a feeding mechanism, a nut 5, and a fixing plate 6. The magnet comprises multiple magnets 4, all of which are eccentric structures. The fixing plate 6 is used for fixing... Installed at the front of the support shaft 3, which is fixedly mounted on the fixing mechanism, multiple magnets 4 are stacked together and all are fitted onto the support shaft 3. All magnets 4 are located within the cavity of the support shaft 3. The front of the support shaft 3 is threaded, and a nut 5 is screwed onto the threaded front of the support shaft 3. The nut 5 presses the multiple magnets 4 against the fixing plate 6. All magnets 4 are located near the left side of the cavity of the drum 2. The feeding mechanism is located above the drum 2 and has a feeding function. The drum 2 is mounted on a rotating mechanism for rotating the drum 2. When screening impurities in metal powder, the metal powder to be magnetically separated is first... The material is slowly added to the upper right side of the drum 2 via the feeding mechanism, causing the metal powder to be magnetically separated to slowly fall onto the outer wall of the drum 2 near the magnet 4. The metal powder is attracted to the surface of the drum 2 by the magnetic force of the magnet 4, while non-magnetic impurities in the metal powder slide off the surface of the drum 2 into the waste collection box 7 due to gravity. Simultaneously, the drum 2 rotates via the rotating mechanism, causing the metal powder adsorbed on its surface to rotate as well. When the metal powder on the drum 2 rotates to the side away from the magnet 4, the magnetic force of the magnet 4 on the metal powder decreases, causing the metal powder adsorbed on the surface of the drum 2 to... The metal powder falls onto the surface of cylinder 2 and is collected in metal powder collection box 8, completing the magnetic separation of metal powder. When one of the multiple magnets 4 is damaged, rotate nut 5 to disengage it from the multiple magnets 4. Then remove the damaged magnet 4 from the support shaft 3, install a new magnet 4 on the support shaft 3, and then rotate nut 5 again to tighten and fix the multiple magnets 4 onto the fixing plate 6. Since the magnet is composed of multiple magnets 4, when one of the magnets 4 is damaged, the damaged magnet 4 can be replaced directly without replacing the entire magnet. This is convenient to use, reduces replacement costs, and is highly practical.

[0017] like Figure 1 , Figure 3 , Figure 5 and Figure 6 The fixing mechanism includes a linear module 9, a movable plate 10, a support plate 11, and a three-jaw chuck 12. The linear module 9 is fixedly installed on the base plate 1. The movable plate 10 is provided on the linear module 9 and is used to move the movable plate 10 back and forth. The support plate 11 is fixedly installed on the upper end of the movable plate 10. The three-jaw chuck 12 is fixedly installed on the support plate 11. The front part of the support shaft 3 is clamped and fixed by the three-jaw chuck 12. When it is necessary to replace the magnet 4, the linear module 9 is opened. The linear module 9 drives the movable plate 10 to move forward. The movable plate 10 drives the support plate 11 and the three-jaw chuck 12 to move forward. The three-jaw chuck 12 drives the support shaft 3 to move forward. The support shaft 3 drives multiple magnets 4 to move forward, so that multiple magnets 4 can be removed through the opening at the front end of the roller 2, which facilitates the replacement of the magnets 4.

[0018] like Figure 1 The rotating mechanism includes a vertical plate 13, a base 14, and a servo motor 15. The front and rear parts of the roller 2 are rotatably mounted on the base 14 and the vertical plate 13, respectively. The servo motor 15 is fixedly mounted on the vertical plate 13. The power output end of the servo motor 15 is connected to the roller 2. A gearbox is provided on the servo motor 15. When driving the roller 2 to rotate clockwise, the servo motor 15 is turned on, and the servo motor 15 drives the roller 2 to rotate. This facilitates the rotation of the roller 2.

[0019] like Figure 5 It also includes multiple support rods 16 and multiple universal rollers 17. The multiple support rods 16 are all fixedly installed at the rear of the support shaft 3 and are evenly distributed around the axis of the support shaft 3. The multiple universal rollers 17 are respectively installed on the multiple support rods 16 and are in contact with the inner side wall of the roller 2. Through the above arrangement, the front part of the support shaft 3 is clamped and fixed by the three-jaw chuck 12, and the rear part of the support shaft 3 is supported by the multiple support rods 16 and the multiple universal rollers 17, so that the front and rear parts of the support shaft 3 are more balanced and the deformation of the support shaft 3 during use is reduced.

[0020] like Figure 3 and Figure 4It also includes a guide plate 18, both the left and right sides of which are inclined. A bracket is provided on the guide plate 18, and the guide plate 18 is fixedly installed on the base plate 1 by the bracket. The guide plate 18 is located below the drum 2, and the left and right ends of the guide plate 18 are respectively located above the metal powder collection box 8 and the waste collection box 7. When the metal powder is magnetically separated on the drum 2, the metal powder falls to the right side of the upper end of the drum 2. Non-metallic impurities slide down to the right side of the upper end of the guide plate 18 due to gravity. Then, the non-metallic impurities slide down to the waste collection box 7 through the right side of the guide plate 18. At the same time, the drum 2 rotates, and the drum 2 drives the metal powder adsorbed on the surface to rotate until the metal powder on the drum 2 rotates to the left side of the drum 2. At this time, the metal powder is far away from the magnet 4, and the magnetic force is reduced. At this time, the metal powder falls to the left side of the guide plate 18 under the action of gravity. Then, the metal powder slides down to the metal powder collection box 8 for collection.

[0021] like Figure 1 It also includes a feeding box 19 and a guide plate 20. The lower end of the feeding box 19 is provided with multiple discharge pipes, each of which is equipped with a valve. The guide plate 20 is installed at an angle at the lower end of the feeding box 19, below the multiple discharge pipes. The lower end of the guide plate 20 is located on the right side above the support shaft 3. The feeding box 19 is fixedly installed on the vertical plate 13 and the base 14. The metal powder to be magnetically separated is added to the feeding box 19. Then, the valves on the multiple discharge pipes at the lower part of the feeding box 19 are opened, and the speed of metal powder discharge is controlled. Then, the metal powder slides onto the guide plate 20, and then slides onto the drum 2 for magnetic separation via the guide plate 20, which facilitates the feeding of metal powder.

[0022] The surfaces of the multiple omnidirectional rollers 17 are all coated with a wear-resistant coating; this coating improves the wear resistance of the multiple omnidirectional rollers 17. Example 2

[0023] Based on Embodiment 1, baffles are provided on both the front and rear parts of the roller 2; through the above-mentioned arrangement, metal powder falling on the roller 2 is prevented from falling off the front and rear sides of the roller 2, thereby improving reliability.

[0024] The magnet 4, nut 5, waste collection box 7, metal powder collection box 8, linear module 9, servo motor 15 and universal roller 17 of the metal powder dry magnetic separator of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dry magnetic separator for metal powder, comprising a base plate (1), a magnet, a drum (2), a support shaft (3), a waste collection box (7), and a metal powder collection box (8), wherein the drum (2) has a chamber, the front end of the drum (2) has an opening communicating with the chamber, the magnet is located in the chamber of the drum (2), the magnet is fixedly installed on the support shaft (3), the magnet is close to the right side of the chamber of the drum (2), and the waste collection box (7) and the metal powder collection box (8) are respectively located on the left and right sides below the drum (2); characterized in that, It also includes a rotating mechanism, a fixing mechanism, a feeding mechanism, a nut (5) and a fixing plate (6). The magnet includes multiple magnets (4), all of which are eccentric structures. The fixing plate (6) is fixedly installed on the front of the support shaft (3). The support shaft (3) is fixedly installed on the fixing mechanism. Multiple magnets (4) are stacked together. Multiple magnets (4) are all fitted on the support shaft (3). Multiple magnets (4) are all located in the cavity of the support shaft (3). The front of the support shaft (3) is provided with threads. The nut (5) is screwed onto the threads on the front of the support shaft (3). The nut (5) presses multiple magnets (4) onto the fixing plate (6). Multiple magnets (4) are all close to the left side of the cavity of the drum (2). The feeding mechanism is located above the drum (2). The feeding mechanism has the function of feeding. The drum (2) is installed on the rotating mechanism. The rotating mechanism is used to rotate the drum (2).

2. The dry magnetic separator for metal powder as described in claim 1, characterized in that, The fixing mechanism includes a linear module (9), a movable plate (10), a support plate (11), and a three-jaw chuck (12). The linear module (9) is fixedly installed on the base plate (1). The movable plate (10) is provided on the linear module (9). The linear module (9) is used to move the movable plate (10) back and forth. The support plate (11) is fixedly installed on the upper end of the movable plate (10). The three-jaw chuck (12) is fixedly installed on the support plate (11). The front part of the support shaft (3) is clamped and fixed by the three-jaw chuck (12).

3. The dry magnetic separator for metal powder as described in claim 1, characterized in that, The rotating mechanism includes a vertical plate (13), a base (14), and a servo motor (15). The front and rear parts of the roller (2) are rotatably mounted on the base (14) and the vertical plate (13), respectively. The servo motor (15) is fixedly mounted on the vertical plate (13). The power output end of the servo motor (15) is connected to the roller (2). A gearbox is provided on the servo motor (15).

4. The dry magnetic separator for metal powder as described in claim 1, characterized in that, It also includes multiple support rods (16) and multiple universal rollers (17). The multiple support rods (16) are all fixedly installed at the rear of the support shaft (3). The multiple support rods (16) are evenly distributed around the axis of the support shaft (3). The multiple universal rollers (17) are respectively installed on the multiple support rods (16). The multiple universal rollers (17) are all in contact with the inner wall of the roller (2).

5. A dry magnetic separator for metal powder as described in claim 1, characterized in that, It also includes a guide plate (18), both the left and right sides of the guide plate (18) are inclined surfaces, a bracket is provided on the guide plate (18), the guide plate (18) is fixedly installed on the base plate (1) by the bracket, the guide plate (18) is located below the roller (2), and the left and right ends of the guide plate (18) are located above the metal powder collection box (8) and the waste collection box (7) respectively.

6. A dry magnetic separator for metal powder as described in claim 3, characterized in that, It also includes a feeding box (19) and a guide plate (20). The lower end of the feeding box (19) is provided with multiple discharge pipes, each of which is equipped with a valve. The guide plate (20) is installed at an angle at the lower end of the feeding box (19). The guide plate (20) is located below the multiple discharge pipes. The lower end of the guide plate (20) is located on the right side above the support shaft (3). The feeding box (19) is fixedly installed on the upright plate (13) and the base (14).

7. A dry magnetic separator for metal powder as described in claim 1, characterized in that, Both the front and rear parts of the roller (2) are equipped with baffles.

8. A dry magnetic separator for metal powder as described in claim 4, characterized in that, The surfaces of the plurality of universal rollers (17) are all provided with a wear-resistant coating.

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