A device for separating grinding wheel dust and iron dust and a coreless grinding machine

Abstract

The application provides a device for separating grinding wheel dust and iron dust and a coreless grinding machine, which comprises a first separation box for separating iron dust, a separation assembly at least partially embedded in the first separation box, a liquid inlet extending outward from the top of the first separation box near the separation assembly, and an iron dust guide at least partially embedded in the side of the first separation box away from the separation assembly. The first separation box comprises an internal water reservoir arranged at the bottom of the separation assembly. The separation assembly comprises a motor with an output end embedded in the first separation box, a separation magnetic roller sleeved on the output end of the motor, and a sleeve pad sleeved on the outer surface of the separation magnetic roller. The output end of the motor is eccentrically designed with the separation magnetic roller, so that the separation magnetic roller will pass through the iron dust guide in sequence and rotate in close contact with the inner wall of the water reservoir during the eccentric rotation of the separation magnetic roller and the sleeve pad driven by the motor, so as to fully cover the inside space of the water reservoir and ensure the full contact of the separation magnetic roller with the waste liquid in the water reservoir.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coreless grinder dust separation, in particular to a device for separating grinding wheel dust and iron filings dust and a coreless grinder. BACKGROUND

[0002] A coreless grinder, commonly known as a centerless grinder, is a grinder that does not need to position the shaft of a workpiece. The working principle of a centerless grinder is to use the geometric error of the grinding wheel during the processing of the surface of a part to control the processing center line, thereby achieving precise processing. Specifically, a centerless grinder grinds by rotating a grinding wheel at high speed, while a guide wheel rotates at a slower speed in the same direction, thereby rotating and feeding the workpiece in a circular manner. During through grinding, axial feed can be achieved by adjusting the inclination angle of the guide wheel axis, while during plunge grinding, radial feed can be achieved by moving the guide wheel holder or the grinding wheel holder.

[0003] However, during the grinding process, the coreless grinder uses grinding liquid (such as water or grinding fluid) for dust reduction, rust prevention, and lubrication. However, the grinding wheel dust generated by the self-wear of the grinding wheel and the iron filings dust generated by the grinding of the product mix in the liquid, and with the flow of the liquid to various locations of the equipment, and the mixed grinding wheel dust and iron filings dust become impurity waste liquid, which needs to be treated to separate the iron filings dust and the grinding wheel dust in the waste liquid. The separated grinding wheel dust can be used for the preparation of the grinding wheel, the separated iron filings can be used for the preparation of metal workpieces, and the treated liquid can still be returned to the coreless grinder for grinding, achieving energy saving and environmental protection.

[0004] However, the current separation device for grinding wheel dust and iron filings dust mostly uses a sprinkling method to guide the impurity waste liquid to the surface of the magnetic roller, and the iron filings dust in the impurity waste liquid is adsorbed during the axial rotation of the magnetic roller. Then, the sprinkling method is used to filter the sprinkled impurity waste liquid to filter out the grinding wheel dust in the waste liquid, and finally the separation of the grinding wheel dust and the iron filings dust is completed. However, this operation cannot guarantee sufficient contact between the impurity waste liquid and the magnetic roller, and the sprinkling method may cause waste liquid to splash, resulting in a large amount of waste liquid not being in contact with the magnetic roller, thus causing a large filtering error and greatly reducing the filtering quality of the grinding wheel dust and the iron filings dust. SUMMARY

[0005] Therefore, the present application aims to provide a device for separating grinding wheel dust and iron filings dust and a coreless grinder to fundamentally solve the problem of the current separation device for grinding wheel dust and iron filings dust, which cannot guarantee sufficient contact between the impurity waste liquid and the magnetic roller, thereby reducing the filtering quality of the grinding wheel dust and the iron filings dust.

[0006] According to the embodiment of the application, a device for separating grinding wheel dust and iron filings dust comprises a first separation tank for separating iron filings dust, a separation assembly at least partially embedded in the first separation tank, a liquid inlet extending outward from the top of the first separation tank near the separation assembly, a second separation tank provided at the bottom of the first separation tank for separating grinding wheel dust, an iron filings guide at least partially embedded in the first separation tank away from the separation assembly, and a liquid drain valve provided at the lower right corner of the second separation tank, wherein the iron filings guide is in contact with at least part of the separation assembly to scrape off the iron filings dust on the surface of the separation assembly.

[0007] The first separation tank comprises an internal water reservoir provided at the bottom of the separation assembly.

[0008] The separation assembly comprises a motor with an output end embedded in the first separation tank, a separation magnetic roller sleeved on the output end of the motor, and a sleeve pad sleeved on the outer surface of the separation magnetic roller, wherein the output end of the motor is eccentrically designed with the separation magnetic roller.

[0009] The separation magnetic roller rotates eccentrically along the output end of the motor to rotate towards the inner wall of the water reservoir and fully cover the space of the water reservoir.

[0010] Further, the first separation tank further comprises a drainage assembly provided through the water reservoir, and a vibration motor embedded in the first separation tank and located at the bottom of the iron filings guide.

[0011] Further, the second separation tank comprises at least three groups of grinding wheel dust filtering members embedded in the interior, and a flow guide groove provided at the bottom of the grinding wheel dust filtering members, wherein the flow guide groove is in communication with the liquid drain valve away from the side of the grinding wheel dust filtering members.

[0012] Further, the grinding wheel dust filtering member comprises a filtering plate embedded in the second separation tank, and a pull-out plate fixedly provided at one side of the filtering plate.

[0013] Further, the iron filings guide comprises a first guide plate at the top, a second guide plate provided at the bottom of the first guide plate and parallel to the first guide plate, a connecting frame lapped between the first guide plate and the second guide plate, a scraping plate extending outward from the top of the first guide plate and the second guide plate towards the side near the separation magnetic roller, and side wing partitions extending outward from the top of the first guide plate and the second guide plate.

[0014] Further, the scraping plate is in contact with the outer surface of the separation magnetic roller away from the side of the first guide plate and the second guide plate, and the scraping plate is provided with a scraping groove for accommodating part of the separation magnetic roller near the side of the separation magnetic roller.

[0015] Further, the drainage assembly comprises a piston assembly movably embedded in the water reservoir, and an elastic assembly arranged outside the water reservoir and connected to the piston assembly, so that the compressed piston assembly is rebounded through the elastic assembly.

[0016] Further, the piston assembly comprises a fixed end arranged at the top and in contact with the separation magnetic roller, a discharge end arranged at the side of the fixed end away from the separation magnetic roller, and a piston part arranged at the side of the discharge end away from the fixed end, the outer diameter of the piston part is adapted to the inner diameter of the drainage opening arranged on the water reservoir for accommodating the piston assembly, and the outer diameters of the discharge end and the fixed end are both smaller than the inner diameter of the drainage opening, so that after the piston assembly is pressed down by the separation magnetic roller, the waste liquid in the water reservoir is discharged along the discharge end.

[0017] Further, the elastic assembly comprises a first linkage part arranged outside the water reservoir, an elastic part arranged at the side of the first linkage part away from the water reservoir, and a second linkage part arranged at the side of the elastic part away from the first linkage part.

[0018] In addition, the application also provides a coreless grinding machine, which comprises a separation device for grinding wheel dust and iron filings dust arranged on the coreless grinding machine.

[0019] Compared with the prior art, the separation device for grinding wheel dust and iron filings dust in the above-mentioned embodiments of the application drives the separation magnetic roller and the sleeve pad to do eccentric rotation along the center by the motor on the separation assembly. During the process, the separation magnetic roller will pass through the iron filings guide member in sequence and contact the scraping plate, and will rotate in close contact with the inner wall of the water reservoir, so as to fully cover the inside space of the water reservoir, ensure the full contact between the separation magnetic roller and the waste liquid in the water reservoir, and avoid the situation that the waste liquid in the water reservoir is taken out due to the too high speed of the separation magnetic roller. The speed of the separation magnetic roller can be set to one round per second to two rounds per second around the motor output end. Understandably, the separation magnetic roller can slowly enter the water reservoir at this speed, and the waste liquid in the water reservoir will not be violently stirred during the process. At the same time, due to the slowing down of the speed and the turning of the separation magnetic roller itself, the waste liquid in the water reservoir can be stirred and the contact time between the waste liquid and the separation magnetic roller can be ensured, so as to achieve the purpose of high-efficiency adsorption of the iron filings dust in the waste liquid. The problem that the separation device for grinding wheel dust and iron filings dust cannot ensure the full contact between the impurity waste liquid and the magnetic roller, thereby reducing the filtration quality of the grinding wheel dust and the iron filings dust, is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic view of the separation device for grinding wheel dust and iron filings dust in the embodiments of the application;

[0021] Figure 2Part sectional structure schematic view of the separating device for the abrasive wheel dust and the iron chip dust in the embodiment of the present application;

[0022] Figure 3 First state structure schematic view of the iron chip material guiding member in the separating device for the abrasive wheel dust and the iron chip dust in the embodiment of the present application;

[0023] Figure 4 Part structure schematic view of the abrasive wheel dust filtering member in the separating device for the abrasive wheel dust and the iron chip dust in the embodiment of the present application;

[0024] Figure 5 Enlarged structure schematic view of A in the separating device for the abrasive wheel dust and the iron chip dust in the embodiment of the present application;

[0025] Figure 6 Second state structure schematic view of the iron chip material guiding member in the separating device for the abrasive wheel dust and the iron chip dust in the embodiment of the present application.

[0026] Main element symbol explanation:

[0027]

[0028] The following detailed description will further describe the present application with reference to the above-mentioned drawings. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. Several embodiments of the present application are given in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present application is more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. As used herein the terms "vertical", "horizontal", "left", "right", and the like are merely used for the purpose of illustration.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0032] Please refer to Figures 1 to 6The application discloses a separating device for grinding wheel dust and iron filings dust, which comprises a first separating box 1 for separating iron filings dust, a separating assembly 2 at least partially embedded in the first separating box 1, a liquid inlet 3 extending outwards from the top of the first separating box 1 close to the separating assembly 2, a second separating box 5 provided at the bottom of the first separating box 1 for separating grinding wheel dust, an iron filings guide 4 at least partially embedded in the first separating box 1 away from the separating assembly 2, and a liquid discharge valve 7 provided at the lower right corner of the second separating box 5. In some optional embodiments, a filter screen for filtering grinding wheel dust can be additionally provided at the liquid discharge valve 7 to ensure the filtering quality of waste liquid. The iron filings guide 4 is in contact with at least part of the separating assembly 2 to scrape off the iron filings dust on the surface of the separating assembly 2. The first separating box 1 comprises an inner water storage pool 8 provided at the bottom of the separating assembly 2. The separating assembly 8 comprises a motor 21 with an output end embedded in the first separating box 1, a separating magnetic roller 22 sleeved on the output end of the motor 21, and a sleeve pad 23 sleeved on the outer surface of the separating magnetic roller 22. The output end of the motor 21 is eccentrically designed with the separating magnetic roller 22. The separating magnetic roller 22 rotates eccentrically along the output end of the motor 21 to rotate towards the inner wall of the water storage pool 8 and fully cover the space of the water storage pool 8.

[0033] Further, the first separation tank 1 further comprises a drainage assembly 9 arranged through the water storage pool 8, and a vibration motor 10 embedded in the first separation tank 1 and located at the bottom of the scrap iron guide 4, the second separation tank 5 comprises at least three groups of sand wheel ash filtering pieces 6 embedded in the inside, and a flow guide groove 11 opened at the bottom of the sand wheel ash filtering piece 6, the flow guide groove 11 is communicated with the liquid discharge valve 7 away from one side of the sand wheel ash filtering piece 6, the sand wheel ash filtering piece 6 comprises a filtering plate 62 embedded in the second separation tank 5, and a pull-out plate 61 fixedly arranged at one side of the filtering plate 61, the scrap iron guide 4 comprises a first guide plate 41 at the top, a second guide plate 42 arranged at the bottom of the first guide plate 41 and parallel to the first guide plate 41, a connecting frame 43 overlapped between the first guide plate 41 and the second guide plate 42, a scraping plate 45 respectively extended out along the first guide plate 41 and the second guide plate 42 towards the side close to the separation magnetic roller 22, and a side wing partition plate 44 respectively extended out along the top of the first guide plate 41 and the second guide plate 42 and outward along the two sides, the scraping plate 45 is in contact with the outer surface of the separation magnetic roller 22 away from one side of the first guide plate 41 and the second guide plate 42, and the scraping plate 45 is provided with a scraping groove for accommodating part of the separation magnetic roller 22 at the side close to the separation magnetic roller 22, the drainage assembly 9 comprises a piston assembly movably embedded in the water storage pool 8, and an elastic assembly arranged outside the water storage pool 8 and connected with the piston assembly, the piston assembly is resiliently returned by the elastic assembly, the piston assembly comprises a fixed end 91 arranged at the top and in contact with the separation magnetic roller 22, a discharge end 92 arranged at the side away from the separation magnetic roller 22 of the fixed end 91, and a piston part 93 arranged at the side away from the fixed end 91 of the discharge end 92, the outer diameter of the piston part 93 is adapted to the inner diameter of the drainage opening of the water storage pool 8, the outer diameters of the discharge end 92 and the fixed end 91 are smaller than the inner diameter of the drainage opening, so that the waste liquid in the water storage pool 8 is discharged along the discharge end 92 after the piston assembly is pressed by the separation magnetic roller 22, the elastic assembly comprises a first linkage part 94 arranged outside the water storage pool 8, an elastic part 95 arranged at the side away from the water storage pool 8 of the first linkage part 94, and a second linkage part 96 arranged at the side away from the first linkage part 94 of the elastic part 95.

[0034] In specific implementation, first, the operator can communicate the liquid inlet 3 with the waste liquid discharge port on the coreless grinding machine, so that the waste liquid discharged by the coreless grinding machine can be directly introduced into the liquid inlet 3 along the waste liquid discharge port. In order to ensure the uniform introduction of waste liquid at the coreless grinding machine, in some optional embodiments, a liquid storage tank can be added between the liquid inlet 3 and the waste liquid discharge port, and an electromagnetic valve can be arranged at the discharge end of the liquid storage tank towards the liquid inlet 3, for controlling the waste liquid to enter the liquid inlet 3 at a preset flow rate and flow. In order to avoid the splashing caused by directly pouring the waste liquid on the surface of the separation magnetic roller 22, a flow guide plate is arranged in the liquid inlet 3 and at the top end of the separation magnetic roller 22, to guide the waste liquid to enter along the left side of the separation magnetic roller 22 and reduce the pouring operation on the separation magnetic roller 22, and finally guide the waste liquid to be stored in the water storage pool 8. It should be noted that, in order to avoid the subsequent separation magnetic roller 22 entering the water storage pool 8 causing the liquid level to rise, which may cause the waste liquid to leak, the waste liquid introduced into the water storage pool 8 at the preset flow rate and flow should be controlled to be less than two-thirds of the total depth of the water storage pool 8.

[0035] Then, the operator can wake up the grinding wheel dust and iron dust separation device to implement wastewater treatment through the controller. In some optional embodiments, the controller can be arranged at any position on the grinding wheel dust and iron dust separation device which is convenient for the operator to operate. In addition, the controller can be an MCU (Microcontroller Unit) chip, to control the grinding wheel dust and iron dust separation device through the MCU chip. The grinding wheel dust and iron dust separation device and the controller are electrically connected, and the electrical connection includes wired connection and wireless connection. The wireless connection includes but is not limited to Bluetooth connection, WiFi, IF radio frequency, zigbee, and the wired connection includes but is not limited to USB line connecting the grinding wheel dust and iron dust separation device and the controller. First, the controller wakes up the separation assembly 2, so that the motor 21 drives the separation magnetic roller 22 and the sleeve pad 23 to do eccentric rotation along the center, and the rotation direction is as follows Figure 2In the direction of the arrow, in the process, the separation magnetic roller 22 will pass through the scrap iron guide 4 and contact the scraping plate 45 in turn, and will rotate in close contact with the inner wall of the reservoir 8, so that it fully covers the inside space of the reservoir 8, ensuring that the separation magnetic roller 22 is in full contact with the waste liquid in the reservoir 8. In some optional embodiments of the present application, the separation magnetic roller 22 can be a magnet or an electromagnet, which is understood by those skilled in the art. It needs to be explained that in order to ensure the contact time and sufficient contact between the separation magnetic roller 22 and the waste liquid, while avoiding the situation that the separation magnetic roller 22 brings out the waste liquid in the reservoir 8 due to excessive speed, the speed of the separation magnetic roller 22 can be set at 1s~2s per revolution around the motor 21 output end. It can be understood that the separation magnetic roller 22 can slowly enter the reservoir 8 at this speed, and the process will not cause the waste liquid in the reservoir 8 to roll violently. At the same time, due to the slowing down of the speed and the turning of the separation magnetic roller 22 itself, the waste liquid in the reservoir 8 can be stirred and the contact time with the waste liquid can be ensured, achieving the purpose of efficiently adsorbing iron dust and ash in the waste liquid.

[0036] Subsequently, when the separation magnetic roller 22 passes through the reservoir 8, the drainage assembly 9 can also be triggered to guide the waste liquid in the reservoir 8 after the separation of the iron dust and ash into the second separation tank 5 to implement the separation operation of the grinding dust. Specifically, when the separation magnetic roller 22 moves along the inner wall of the reservoir 8, a pressure can be applied to the surface of the fixed end 91 to move it away from the separation magnetic roller 22 and completely press it into the inner wall of the reservoir 8. In the process, the piston part 93 at the drain port of the reservoir 8 is separated, and the fixed end 91 and the drainage end 92 smaller than the inner diameter of the drain port are embedded in the drain port. In the process, the waste liquid in the reservoir 8 can be guided out of the reservoir 8 along the drainage end 92 and into the second separation tank 5. In some optional embodiments of the present application, the position of the drainage assembly 9 in the reservoir 8 can be set at the middle or edge of the bottom of the reservoir 8. The purpose is to ensure that the separation magnetic roller 22 can fully walk through the reservoir 8 to achieve full coverage before triggering the drainage assembly 9 to perform the drainage operation. After that, when the separation magnetic roller 22 passes through the fixed end 91, the elastic part 95 can produce a spring deformation between the first linkage part 94 and the second linkage part 96 to pull the piston assembly back and make the piston part 93 re-embedded in the drain port. In this way, the cycle is repeated. In addition, in some optional embodiments, a trigger sensor can also be provided on the drainage assembly 9, which is electrically connected with the electromagnetic valve at the liquid inlet 3. The electromagnetic valve is opened and new waste liquid is added to the liquid inlet 3 2s after the drainage assembly 9 is triggered, realizing the automatic filling operation of the waste liquid.

[0037] Further, when the wastewater is introduced into the second separation tank 5 through the drainage assembly 9, the waste liquid can be contained by the grinding wheel dust filter 6, and the waste liquid is directly filtered through the filter plate 62, so as to realize the filtering treatment of the grinding wheel dust, and the filtered liquid can enter the flow guide groove 11 and be discharged outside through the liquid drain valve 7. In some optional embodiments, the operator can also connect the liquid drain valve 7 with the grinding fluid tank on the coreless grinding machine through an external conduit, so as to realize the recycling use of the filtered liquid. At the same time, the separation magnetic roller 22 drives the surface-adsorbed iron dust to rotate to the iron dust guide piece 4 and contact the scraping plate 45, and the iron dust on the surface of the separation magnetic roller 22 is scraped off through the scraping plate 45. It should be noted that the scraping plate 45 is designed to be tangent to the surface of the separation magnetic roller 22, which can greatly improve the scraping quality of the iron dust by the scraping plate 45. In some optional embodiments, in order to further improve the efficient scraping effect of the iron dust on the surface of the separation magnetic roller 22, the edge of the scraping plate 45 can be extended, as shown in Figure 6 so that the extended part contacts the two sides of the separation magnetic roller 22 in the axial direction, realizes the scraping of the iron dust on the axial edges of the separation magnetic roller 22, improves the collection efficiency of the iron dust, and two groups of scraping plates 45 are arranged and correspond to the first guide plate 41 and the second guide plate 42, which can further improve the collection efficiency of the iron dust. In addition, in some optional embodiments, considering that the scraping plate 45 is in contact with the separation magnetic roller 22 for a long time, there may be some wear and tear, so the scraping plate 45 and the first guide plate 41 or the second guide plate 42 are designed as a detachable structure, and the operator can replace the scraping plate 45 regularly. Finally, the scraped iron dust is transmitted to the first guide plate 41 or the second guide plate 42 along the scraping plate 45. Since the iron dust is in a wet state, it may be adsorbed on the surface of the first guide plate 41 or the second guide plate 42. The operator can control the vibration motor 10 at the bottom of the iron dust guide piece 4 to be turned on, and drive the iron dust guide piece 4 to vibrate as a whole through the vibration motor 10, so as to guide the iron dust to be discharged along the inclined trajectory of the first guide plate 41 or the second guide plate 42.

[0038] In summary, the separating device for the grinding wheel dust and the iron dust in the above-mentioned embodiments of the present application, the motor 21 on the separating assembly 2 drives the separating magnetic roller 22 and the sleeve pad 23 to do eccentric rotation along the center, in the process, the separating magnetic roller 22 will pass through the iron dust guide 4 in turn and contact with the scraper plate 45, at the same time, it will rotate in close contact with the inner wall of the water storage pool 8, so that it can fully cover the inside space of the water storage pool 8, ensure the full contact of the separating magnetic roller 22 with the waste liquid in the water storage pool 8, and avoid the situation that the separating magnetic roller 22 brings out the waste liquid in the water storage pool 8 due to too fast speed, the speed of the separating magnetic roller 22 can be set at 1s~2s per round of the motor 21 output end, it can be understood that the separating magnetic roller 22 can slowly enter the water storage pool 8 at the speed, and the process will not cause the waste liquid in the water storage pool 8 to roll violently, at the same time, due to the slow speed and the turning of the separating magnetic roller 22 itself, it can agitate the waste liquid in the water storage pool 8 and ensure the sufficient contact time with the waste liquid, realize the purpose of high-efficiency adsorption of the iron dust in the waste liquid, solve the problem that the separating device for the grinding wheel dust and the iron dust cannot guarantee the full contact of the impurity waste liquid with the magnetic roller, thereby reducing the filtration quality of the grinding wheel dust and the iron dust.

[0039] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be noted that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A separation device for grinding wheel dust and iron chip dust, characterized in that: The invention comprises a first separation box for separating iron chips and ash, a separation assembly at least partially embedded in the first separation box, a liquid inlet extending outward from the top of the first separation box near the separation assembly, a second separation box disposed at the bottom of the first separation box for separating grinding wheel ash, an iron chip guide at least partially embedded on a side of the first separation box away from the separation assembly, and a drain valve disposed at the lower right corner of the second separation box, wherein the iron chip guide contacts at least a portion of the separation assembly and is used to scrape iron chips and ash off the surface of the separation assembly; The first separation box includes a water reservoir located inside the first separation box cavity and arranged at the bottom of the separation assembly; The separation assembly includes a motor with an output end embedded in the first separation box, a separation magnetic roller sleeved on the output end of the motor, and a sleeve gasket sleeved on the outer surface of the separation magnetic roller, wherein the output end of the motor and the separation magnetic roller are eccentrically designed; The separation magnetic roller rotates eccentrically along the output end of the motor so that the separation magnetic roller rotates toward the inner wall of the water reservoir and fully covers the space of the water reservoir; The first separation box further includes a drainage assembly disposed throughout the water reservoir, and a vibration motor embedded in the first separation box and located at the bottom of the iron chip guide member; The drainage assembly includes a piston assembly movably embedded in the water reservoir, and an elastic assembly arranged outside the water reservoir and connected to the piston assembly, so that the compressed piston assembly can rebound through the elastic assembly; The piston assembly includes a fixed end arranged at the top and in contact with the separation magnetic roller, a drainage end arranged on the side of the fixed end away from the separation magnetic roller, and a piston part arranged on the side of the drainage end away from the fixed end. The outer diameter of the piston part is adapted to the inner diameter of the drainage port opened on the water reservoir for accommodating the piston assembly. The outer diameters of the drainage end and the fixed end are both smaller than the inner diameter of the drainage port, so that after the piston assembly is pressed down by the separation magnetic roller, the waste liquid in the water reservoir is discharged along the drainage end.

2. The separation device for grinding wheel dust and iron chip ash according to claim 1, characterized in that: The second separation box includes at least three groups of grinding wheel ash filters embedded in the second separation box cavity, and a guide groove opened at the bottom of the grinding wheel ash filter. The guide groove is connected to the drain valve on the side away from the grinding wheel ash filter.

3. The separation device for grinding wheel dust and iron chip ash according to claim 2, characterized in that: The grinding wheel dust filter element includes a filter plate embedded in the second separation box and a pull-out plate fixedly arranged on one side of the filter plate.

4. The separation device for grinding wheel dust and iron chip ash according to claim 3, characterized in that: The iron chip guide member includes a first guide plate on the top, a second guide plate arranged at the bottom of the first guide plate and parallel to it, a connecting frame overlapping the first guide plate and the second guide plate, a scraper plate extending along the first guide plate and the second guide plate toward the side close to the separation magnetic roller, and side wing partitions extending outward along both sides of the top of the first guide plate and the second guide plate.

5. The separation device for grinding wheel dust and iron chip ash according to claim 4, characterized in that: The scraper plate is in contact with the outer surface of the separation magnetic roller at a side away from the first guide plate and the second guide plate, and a scraper groove for accommodating a portion of the separation magnetic roller is provided on the scraper plate close to the separation magnetic roller.

6. The separation device for grinding wheel dust and iron chip ash according to claim 5, characterized in that: The elastic component includes a first linkage portion arranged outside the water reservoir, an elastic portion arranged on a side of the first linkage portion away from the water reservoir, and a second linkage portion arranged on a side of the elastic portion away from the first linkage portion.

7. A coreless grinding machine, characterized in that: A device for separating grinding wheel dust and iron chip ash according to any one of claims 1 to 6, arranged on the coreless grinding machine.

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