A new magnetic separation device

Abstract

The utility model provides a novel magnetic separation device, including a box body, a magnetic roller, a pressure roller, and a motor. The magnetic roller is connected to the motor through a chain transmission member. A pressure roller for extrusion and cooperation with the magnetic roller is provided on the oblique upper side of the magnetic roller. A liquid inlet is provided on one side of the box body. The lower end of the outer side of the magnetic roller is covered with a wrapping plate. Sealing filter layers are provided on both sides of the wrapping plate. The sealing filter layer isolates the cavity between the wrapping plate and the magnetic roller into three cavities, which are an adsorption cavity located in the middle for adsorbing magnetic impurities and isolation cavities located at both ends. The sealing filter layer can prevent the chips in the adsorption cavity from entering the isolation cavity. Liquid leakage ports located in the isolation cavity are provided at both ends of the bottom of the wrapping plate. A liquid outlet is provided on the side of the bottom of the box body away from the liquid inlet. The utility model can avoid liquid accumulation at both ends of the magnetic roller to damage the sprockets at both ends of the magnetic roller by setting a sealing filter layer, and can also avoid cutting fluid from entering the inside of the magnetic roller to damage the magnetic roller, thereby improving the service life of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of separators, in particular to a novel magnetic separation device. Background Art

[0002] Cutting fluid is widely used in the mechanical processing industry. It plays the role of lubrication, cooling and flushing in metal processing. It is an indispensable supporting material for metal processing. However, during the use of cutting fluid, metal chips will be mixed into it. In order to ensure the cleanliness of the cutting fluid, it is generally filtered by a filter. However, the filtering effect of the filter is limited. Metal chips will quickly precipitate in the cutting fluid box of the machine tool. If it is not cleaned in time, it will affect the normal production of the lathe. In addition, the equipment is often shut down due to the cleaning of metal chips, which is time-consuming and laborious. Therefore, it is necessary to treat the iron sludge in the cutting fluid and recycle it. At present, a magnetic separation device is generally used to separate and recycle the magnetic impurities in the cutting fluid.

[0003] Magnetic separation devices are generally used for the purification of cutting fluids in grinders and other machine tools. They are mainly composed of a box, a motor, a drive sprocket, a magnetic roller and a pressure roller. The inner cylinder of the magnetic roller is densely equipped with strong magnets in the circumferential direction. The motor drives the drive sprocket and the magnetic roller to rotate. After the cutting fluid enters the strong magnetic adsorption area of ​​the magnetic roller, the magnetic impurities in the cutting fluid are adsorbed on the outer wall of the magnetic roller. After being rolled by the pressure roller, the liquid entrained in the impurities adsorbed on the outer wall of the magnetic roller is squeezed out. In the existing magnetic separation device, the inner cylinder of the magnetic roller is densely equipped with strong magnets in the circumferential direction. Although it can increase the adsorption area of ​​the magnetic roller and improve the adsorption efficiency, since the surface of the magnetic roller is strongly magnetic everywhere, the position where the scraper plate contacts the surface of the magnetic roller is always magnetic. The magnetic impurities are not easy to fall off due to the magnetic force of the magnetic roller, which affects the separation effect. In addition, the dense strong magnets increase the manufacturing cost. In addition, in the existing magnetic separation device, the driving sprocket is immersed in cutting fluid. Impurities such as abrasives contained in the cutting fluid adhere to the sprocket and wear it, and even penetrate into the magnetic roller, damaging the internal structure of the magnetic roller, causing the magnetic separator to fail. Utility Model Content

[0004] The utility model aims to provide a novel magnetic separation device to overcome the deficiencies in the prior art.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a new type of magnetic separation device, including a box body, a magnetic roller, a pressure roller, and a motor. The magnetic roller is connected to the motor arranged on the outside of the box body through a chain transmission member. A pressure roller for extrusion cooperation with the magnetic roller is provided on the oblique upper side of the magnetic roller. A liquid inlet is provided on one side of the box body. The lower end of the outer side of the magnetic roller is covered with a wrapping plate. The two ends of the wrapping plate are connected to the box body, and sealing filter layers are also provided on both sides of the wrapping plate. The sealing filter layer isolates the cavity between the wrapping plate and the magnetic roller into three cavities, which are an adsorption chamber located in the middle for adsorbing magnetic impurities and isolation chambers located at both ends. The sealing filter layer can prevent chips in the adsorption chamber from entering the isolation chamber and filter the cutting fluid. Liquid leakage ports located in the isolation chamber are also provided at both ends of the bottom of the wrapping plate. A liquid outlet located below the wrapping plate is provided on the side of the bottom of the box body away from the liquid inlet.

[0006] Furthermore, in the above-mentioned novel magnetic separation device, a liquid-conducting buffer is provided between the liquid inlet and the wrapping plate, and the liquid-conducting buffer includes a buffer box, a buffer plate 1, and a buffer plate 2. The buffer box is provided on one side of the box body close to the liquid inlet, and is a trapezoidal box body with an opening at the lower end, and its hypotenuse is provided opposite to the liquid inlet. The buffer plate 1 is an arc-shaped plate, and is provided below the buffer box. The buffer plate 2 is inclined, and its inclination direction is opposite to the inclination direction of the hypotenuse of the buffer box, and is connected to the wrapping plate to guide the cutting fluid into the adsorption chamber.

[0007] Furthermore, in the above-mentioned novel magnetic separation device, a notch is provided in the middle of one end of the package plate close to the liquid inlet, the side of the notch is flush with the sealing filter layer, and extensions extending to the top of the box body are provided at both ends of the notch.

[0008] Furthermore, in the above-mentioned novel magnetic separation device, the outer side surface of the magnetic roller is provided with a wear-resistant layer.

[0009] Furthermore, in the above-mentioned new magnetic separation device, the magnets located between the inner cylinder and the outer cylinder of the magnetic roller are arranged along the outer peripheral side close to the liquid inlet, and the magnets located within the adsorption chamber are strong magnets, and the remaining magnets are weak magnets. The weak magnets are evenly arranged from the strong magnetic end to the outer peripheral side of the top of the magnetic roller.

[0010] Furthermore, in the above-mentioned novel magnetic separation device, a scraper plate is provided on the top of one side of the box body close to the liquid outlet, and a chip guide plate is provided below the scraper plate.

[0011] Furthermore, in the above-mentioned new magnetic separation device, the pressure roller is connected to the box body through elastic connecting parts symmetrically arranged on both sides of the box body, and the elastic connecting parts include a guide rod, a spring, and a nut. One end of the guide rod is fixed to the side of the box body through a fixing seat, and the other end is inserted into the through hole of the pressure roller shaft end. The spring sleeve is arranged on the outside of the guide rod, one end of which abuts against the pressure roller shaft end, and the other end abuts against the nut. The nut is threadedly connected to the guide rod.

[0012] Furthermore, in the above-mentioned new magnetic separation device, the pressure roller is also connected to the motor through a second chain transmission component, and the second chain transmission component includes a transmission sprocket and a chain link group. The transmission sprocket is arranged at the end of the magnetic roller away from the motor, and the chain link group is fixed to the axial end of the pressure roller and meshes with the transmission sprocket.

[0013] Furthermore, in the above-mentioned novel magnetic separation device, a scraper fixed on the box body is provided on one side of the pressure roller.

[0014] Furthermore, in the above-mentioned novel magnetic separation device, a magnetic roller cover fixed to the top of the box body is provided on the top of the magnetic roller, and the magnetic roller cover closes the openings above the magnetic roller and the pressure roller.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The outer side of the magnetic roller is provided with a wear-resistant layer to increase the wear resistance and prolong the life of the magnetic roller;

[0017] 2. The magnets are reasonably distributed by combining strong and weak magnetism, which can reduce costs while ensuring the adsorption and separation effect of the magnetic roller;

[0018] 3. By setting up a sealing filter layer, it is possible to avoid liquid accumulation at both ends of the magnetic roller, and to prevent the sprockets at both ends of the magnetic roller from contacting with the cutting fluid, thereby preventing impurities such as abrasives contained in the cutting fluid from adhering to the sprockets and wearing the sprockets, and to prevent the cutting fluid from penetrating into the magnetic roller and damaging the magnetic roller. The sealing filter layer also has a filtering effect, which can filter the penetrating cutting fluid, thus ensuring the separation and purification effect;

[0019] 4. The rubber roller can be driven to rotate, which can effectively avoid the pressure roller from slipping and ensure the chip removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the novel magnetic separation device of the utility model;

[0022] Figure 2 This is a front view of the novel magnetic separation device of the utility model;

[0023] Figure 3 It is a top view of the novel magnetic separation device of the utility model;

[0024] Figure 4 for Figure 3 A cross-sectional schematic diagram;

[0025] Figure 5 for Figure 4 Schematic diagram of section B;

[0026] Figure 6 A partial schematic diagram of the new magnetic separation device of the utility model Figure 1 ;

[0027] Figure 7 A partial schematic diagram of the new magnetic separation device of the utility model Figure 2 ;

[0028] In the figure: 1. box body; 2. magnetic roller; 3. pressure roller; 4. motor; 5. chain transmission part 1; 6. liquid inlet; 7. package plate; 71. liquid leakage port; 72. notch; 73. extension part; 8. sealing filter layer; 9. liquid outlet; 11. buffer box; 12. buffer plate 1; 13. buffer plate 2; 14. strong magnet; 15. weak magnet; 16. scraper plate; 17. chip guide plate; 18. guide rod; 19. spring; 20. nut; 21. transmission sprocket; 22. chain link group; 23. scraper; 24. magnetic roller cover. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1

[0031] like Figure 1-7As shown, a novel magnetic separation device comprises a box body 1, a magnetic roller 2, a pressure roller 3, and a motor 4. The magnetic roller 2 is connected to the motor 4 arranged on the outside of the box body 1 through a chain transmission member 5. The magnetic roller 2 is provided with a pressure roller 3 on the upper side thereof for extrusion cooperation. A liquid inlet 6 is provided on one side of the box body 1. The lower end of the outer side of the magnetic roller 2 is covered with a wrapping plate 7. Both ends of the wrapping plate 7 are connected to the box body 1. Sealing filter layers 8 are also provided on both sides of the wrapping plate 7. The sealing filter layer 8 does not exceed the end of the cylinder of the magnetic roller 2. The sealing filter layer 8 isolates the cavity between the wrapping plate 7 and the magnetic roller 2 into three cavities, which are an adsorption cavity in the middle for adsorbing magnetic impurities and isolation cavities at both ends. The filter layer 8 can prevent the chips in the adsorption chamber from entering the isolation chamber and filter the cutting fluid. The two ends of the bottom of the package plate 7 are also provided with leakage ports 71 located in the isolation chamber. In the present embodiment, the sealing filter layer 8 is composed of a slot and a felt pad. The felt pad can also be other filter layers with filtering function. The upper end of the felt pad abuts against the outer side of the magnetic roller 2. The slot does not have a filtering function and seals the lower end of the adsorption chamber. When the liquid in the adsorption chamber is higher than the slot, the cutting fluid penetrates from the adsorption chamber to the isolation chamber, and then leaks out from the leakage port 71. A liquid outlet 9 is provided on the side of the bottom of the box body 1 away from the liquid inlet 6 and is located below the package plate 7. A recovery box can be set below the liquid outlet 9 to facilitate the recovery of magnetic impurities.

[0032] In the above structure, if Figure 4 As shown, the magnets between the inner cylinder and the outer cylinder of the magnetic roller 2 are arranged along the outer peripheral side close to the liquid inlet 6, and the magnets within the adsorption chamber are strong magnets 14, and the remaining magnets are weak magnets 15. The strong magnets 14 are within the range of the adsorption chamber, which can ensure the adsorption area, thereby ensuring the separation effect. The weak magnets 15 are evenly arranged from the end of the strong magnets 14 to the outer peripheral side of the top of the magnetic roller 2. In this embodiment, the setting standard of the strong magnets 14 and the weak magnets 15 is that when the adsorption chamber is full of liquid, the strong magnets 14 are flush with the liquid surface, and the weak magnets 15 are located above the liquid surface. Through this arrangement, the adsorption and separation effect of the magnetic roller 2 can be guaranteed and the cost can be reduced.

[0033] In addition, if Figure 1-3 As shown in FIG. 6 , a scraper plate 16 is further provided on the top of one side of the box body 1 near the liquid outlet 9, and a chip guide plate 17 is provided below the scraper plate 16. No magnet is provided at the position corresponding to the scraper plate 16, and the scraper plate 16 can easily scrape off the magnetic impurities on the outer cylinder of the magnetic roller 2 and make them fall onto the chip guide plate 17.

[0034] During operation, the motor 4 is started, the inner cylinder of the magnetic roller 2 is fixed relative to the box body 1, and the outer cylinder of the magnetic roller 2 rotates under the action of the motor 4 and the chain transmission member 5; the cutting fluid enters the box body 1 from the liquid inlet 6, and then is guided into the adsorption chamber between the package plate 7 and the magnetic roller 2. The magnet on the magnetic roller 2 adsorbs the magnetic impurities in the cutting fluid. As the outer cylinder of the magnetic roller 2 rotates, the magnetic impurities adsorbed on the magnetic roller 2 are not adsorbed when rotating to the scraper plate 16, and are scraped off by the scraper plate 16 and fall onto the chip guide plate 17. The cutting fluid after magnetic filtration flows out from the liquid outlet 9, which is effective. The cutting fluid is separated; at the same time, when the liquid in the adsorption chamber is high, the cutting fluid penetrates from the sealing filter layer 8 to the isolation chamber, and then leaks out from the leakage port 71 at the bottom of the isolation chamber and flows into the liquid outlet 9, avoiding liquid accumulation and preventing the sprockets at both ends of the magnetic roller 2 from contacting with the cutting fluid, thereby preventing impurities such as abrasives contained in the cutting fluid from adhering to the sprockets and wearing the sprockets, and also preventing the cutting fluid from seeping into the interior of the magnetic roller 2 and damaging the magnetic roller. The impurities in the cutting fluid that penetrate from the sealing filter layer 8 are intercepted by the felt in the adsorption chamber, which also ensures the separation and purification effect.

[0035] Example 2

[0036] Based on the structure of Example 1, Figure 1 , 4 As shown, a liquid-conducting buffer is provided between the liquid inlet 6 and the wrapping plate 7, and the liquid-conducting buffer includes a buffer box 11, a buffer plate 12, and a buffer plate 2 13. The buffer box 11 is provided on one side of the box body 1 close to the liquid inlet 6, and is a trapezoidal box body with an opening at the lower end, and its hypotenuse is arranged opposite to the liquid inlet 6. The buffer plate 12 is an arc-shaped plate, which is provided below the buffer box 11. The buffer plate 2 13 is inclined, and its inclination direction is opposite to the inclination direction of the hypotenuse of the buffer box 11, and is connected to the wrapping plate 7 to guide the cutting fluid into the adsorption chamber, and the buffer plate 2 13 also divides the box body 1 into two spaces, namely the liquid inlet space and the clean liquid space, to isolate the unpurified cutting fluid.

[0037] Among them, Figure 4 , 7 As shown, a notch 72 is provided in the middle of one end of the package plate 7 near the liquid inlet 6, and the side of the notch 72 is flush with the sealing filter layer 8. Extension portions 73 extending to the top of the box body 1 are also provided at both ends of the notch 72. The setting of the extension portion 73 can extend the isolation cavity from the bottom of the box body 1 to the top of the box body 1, which can isolate the unpurified cutting fluid in the liquid inlet space of the box body and further improve the isolation effect.

[0038] In order to increase the service life of the magnetic roller 2, a wear-resistant layer is provided on the outer side of the magnetic roller 2. Nitriding treatment can be used to increase the wear resistance.

[0039] In addition, if Figure 1-4As shown in Figures 6 and 7, the pressure roller 3 is connected to the box body 1 through elastic connectors symmetrically arranged on both sides of the box body 1. The elastic connectors include a guide rod 18, a spring 19, and a nut 20. One end of the guide rod 18 is fixed to the side of the box body 1 through a fixing seat, and the other end is inserted into the through hole of the shaft end of the pressure roller 3. The spring 19 is sleeved outside the guide rod 18, one end of which abuts against the shaft end of the pressure roller 3, and the other end abuts against the nut 20. The nut 20 is threadedly connected to the guide rod 18. In this embodiment, a butterfly nut is used for easy adjustment. By setting the elastic connector, it is possible to avoid excessive pressure between the pressure roller 3 and the magnetic roller 2 to damage the equipment.

[0040] like Figure 1-6 As shown, the pressure roller 3 is also connected to the motor 4 through the chain transmission part 2, and the chain transmission part 2 includes a transmission sprocket 21 and a chain link group 22. The transmission sprocket 21 is arranged at the end of the magnetic roller 2 away from the motor, and the chain link group 22 is fixed to the shaft end of the pressure roller 3 and meshes with the transmission sprocket 21. In this embodiment, the chain transmission part 1 and the chain transmission part 2 are similar in structure and are not described in detail here. The rotation of the pressure roller 3 of the existing magnetic separation device is generally driven by the friction between the pressure roller 3 and the magnetic roller 2. If the cutting fluid is oily, the pressure roller will slip, affecting the chip removal effect. The utility model adopts the chain transmission part 2 driven by the motor 4, which rotates synchronously with the magnetic roller 2 in the opposite direction, which can effectively avoid the slippage of the pressure roller 3 and ensure the chip removal effect.

[0041] In addition, if Figure 4-6 As shown, a scraper 23 fixed on the box body 1 is provided on one side of the pressure roller 3. The grinding mud produced by the grinding machine contains the adhesive of the grinding wheel. When the pressure roller 3 squeezes out the grinding mud, part of it will directly stick to the pressure roller 3. As the amount of sticking grinding mud increases, it will cause the pressure roller to be uneven at various places, thereby causing the squeezing function to fail and the discharged grinding mud to have a high water content. The utility model is provided with a scraper 23. When the pressure roller 3 rotates, the scraper 23 scrapes off the grinding mud on the pressure roller 3 to ensure the squeezing function of the pressure roller.

[0042] like Figure 1-5 As shown, a magnetic roller cover 24 fixed to the top of the box body 1 is provided on the top of the magnetic roller 2, and the magnetic roller cover 24 closes the openings above the magnetic roller 2 and the pressure roller 3 to improve the safety of the equipment.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel magnetic separation device, characterized in that: It includes a box body, a magnetic roller, a pressure roller, and a motor. The magnetic roller is connected to the motor arranged on the outside of the box body through a chain transmission member. A pressure roller for extrusion cooperation with the magnetic roller is provided on the oblique upper side of the magnetic roller. A liquid inlet is provided on one side of the box body. The lower end of the outer side of the magnetic roller is covered with a wrapping plate. Both ends of the wrapping plate are connected to the box body, and sealing filter layers are provided on both sides of the wrapping plate. The sealing filter layer isolates the cavity between the wrapping plate and the magnetic roller into three cavities, which are an adsorption chamber located in the middle for adsorbing magnetic impurities and isolation chambers located at both ends. The sealing filter layer can prevent chips in the adsorption chamber from entering the isolation chamber. Liquid leakage ports located in the isolation chamber are also provided at both ends of the bottom of the wrapping plate. A liquid outlet located below the wrapping plate is provided on the side of the bottom of the box body away from the liquid inlet.

2. The novel magnetic separation device according to claim 1 is characterized in that: A liquid-conducting buffer is provided between the liquid inlet and the wrapping plate, and the liquid-conducting buffer includes a buffer box, a buffer plate 1, and a buffer plate 2. The buffer box is provided on one side of the box body close to the liquid inlet, and is a trapezoidal box body with an opening at the lower end, and its hypotenuse is provided opposite to the liquid inlet. The buffer plate 1 is an arc-shaped plate, and is provided below the buffer box. The buffer plate 2 is inclined, and its inclination direction is opposite to the inclination direction of the hypotenuse of the buffer box, and is connected to the wrapping plate to guide the cutting fluid into the adsorption chamber.

3. The novel magnetic separation device according to claim 1 is characterized in that: A notch is provided in the middle of one end of the package plate close to the liquid inlet, the side edge of the notch is flush with the sealing filter layer, and both ends of the notch are provided with extension parts extending to the top of the box body.

4. The novel magnetic separation device according to claim 1 is characterized in that: The outer side surface of the magnetic roller is provided with a wear-resistant layer.

5. The novel magnetic separation device according to any one of claims 1 to 4, characterized in that: The magnets located between the inner cylinder and the outer cylinder of the magnetic roller are arranged along the outer peripheral side close to the liquid inlet, and the magnets located within the adsorption chamber are strong magnets, and the remaining magnets are weak magnets. The weak magnets are evenly arranged from the strong magnet end to the outer peripheral side of the top of the magnetic roller.

6. The novel magnetic separation device according to claim 1 is characterized in that: A scraper plate is also provided on the top of one side of the box body close to the liquid outlet, and a chip guide plate is provided below the scraper plate.

7. The novel magnetic separation device according to claim 1 is characterized in that: The pressure roller is connected to the box body through elastic connectors symmetrically arranged on both sides of the box body, and the elastic connectors include a guide rod, a spring, and a nut. One end of the guide rod is fixed to the side of the box body through a fixing seat, and the other end is inserted into the through hole at the end of the pressure roller shaft. The spring sleeve is arranged on the outside of the guide rod, one end of which abuts against the end of the pressure roller shaft, and the other end abuts against the nut. The nut is threadedly connected to the guide rod.

8. The novel magnetic separation device according to claim 7 is characterized in that: The pressure roller is also connected to the motor through a second chain transmission component, which includes a transmission sprocket and a chain link group. The transmission sprocket is arranged at the end of the magnetic roller away from the motor, and the chain link group is fixed to the axial end of the pressure roller and meshes with the transmission sprocket.

9. The novel magnetic separation device according to claim 1 or 8, characterized in that: A scraper fixed on the box body is provided on one side of the pressing roller.

10. The novel magnetic separation device according to claim 1 is characterized in that: A magnetic roller cover fixed on the top of the box body is provided on the top of the magnetic roller, and the magnetic roller cover closes the openings above the magnetic roller and the pressure roller.

Images