Magnetic separation device

Abstract

The invention provides a magnetic separation device, the magnetic separation device is used for separating cuttings in liquid, the magnetic separation device comprises a separation main body, a magnetic adsorption unit arranged in the separation main body, a scraping unit capable of rotating around the magnetic adsorption unit, and a driving unit for driving the scraping unit to rotate; a chip removal opening and a liquid outlet are formed in the lower side of the separation main body; the magnetic adsorption unit comprises an annular separation panel obliquely arranged in the separation body, a magnet is arranged on the back face of the annular separation panel, and the chip scraping unit can rotate around the annular separation panel. The magnetic separation device can solve the problems that an existing magnetic separation device is low in efficiency, and cuttings are not easy to separate.

Description

Technical Field

[0001] The present invention relates to the technical field of numerically controlled machine tools, and in particular to a magnetic separation device used for matching numerically controlled machine tools. Background Art

[0002] The three major processing technologies of cutting, grinding and casting and forging are important supports for mechanical manufacturing. In mechanical processing, the grinding, cutting and rolling processes require the use of cutting fluids for cooling, lubrication, cleaning and rust removal, thereby improving the quality of products and extending the service life of machine tools. Grinding technology is the most effective and widely used process technology for achieving high-speed processing, precision processing and ultra-precision processing in modern mechanical manufacturing. The amount of grinding processing accounts for 30% to 40% of the total amount of mechanical processing. In grinding processing, with the improvement of processing accuracy, high-speed grinding and strong grinding technology have developed rapidly. In addition to selecting reasonable grinding parameters, the circulation quality of grinding fluid must also be improved.

[0003] Usually, the grinding fluid is mainly pre-treated by magnetic separation equipment, and the ferromagnetic chips and abrasive chips in the grinding fluid (oil, water) are separated by magnetic force. Existing magnetic separators mainly include magnetic roller, rubber roller extrusion, and comb tooth separation. Magnetic roller and rubber roller extrusion separation are mainly suitable for powdered chips, but some large-particle chips will damage the rubber roller during the extrusion process. In the extrusion separation process, due to the effect of the magnet, the chips are not easy to separate, and it is necessary to continuously squeeze and push the chips in front to a position without magnets; while the comb tooth magnetic separator, the processing of the comb tooth magnetic roller is difficult and costly, and when the chips reach the chip outlet with the magnetic roller, there is no external force, and the chips continue to accumulate until they fill the comb teeth, and then the chips will slowly separate along the scraper plate. In this process, the adsorption capacity of the magnetic roller continues to decrease, and the probability of chip escape increases, which is not conducive to the recycling of cutting fluid. Summary of the invention

[0004] Based on this, it is necessary to provide a magnetic separation device to address the problems in the prior art that the magnetic separation equipment has low efficiency, chips are difficult to separate, and are only suitable for powdered chips. The magnetic separation device can solve the problems of low efficiency and difficult chip separation in the existing magnetic separation device.

[0005] A magnetic separation device is used to separate chips in liquid. The magnetic separation device includes a separation body, a magnetic adsorption unit arranged in the separation body, a scraping unit that can rotate around the magnetic adsorption unit, and a driving unit that drives the scraping unit to rotate; a chip discharge port and a liquid outlet are respectively arranged on the lower side of the separation body; the magnetic adsorption unit includes an annular separation panel obliquely arranged in the separation body, a magnet is arranged on the inner side of the annular separation panel, and the scraping unit can rotate around the annular separation panel.

[0006] Furthermore, a guide plate is provided between the magnetic adsorption unit and the liquid outlet, the guide plate and the lower end of the annular separation panel are designed to follow the shape, and a liquid flow gap is reserved between the guide plate and the lower end of the annular separation panel.

[0007] Furthermore, the magnet is arranged on the inner side of the annular separation panel close to one end of the guide plate.

[0008] Furthermore, the scraping unit includes an annular chain surrounding the annular separation panel and a plurality of scrapers evenly arranged on the annular chain; the annular chain is driven to rotate by the driving unit, and the chips adsorbed on the annular separation panel are scraped to the chip discharge port by the scrapers for discharge.

[0009] Furthermore, a brush is provided on the ring chain, and the brush is installed at a distance from the scraper.

[0010] Furthermore, a plurality of water outlets are arranged on the scraper.

[0011] Furthermore, a gap is reserved between the free end of the scraper and the annular separation panel; and the brush is tightly fitted to the annular separation panel.

[0012] Furthermore, the driving unit includes a driving motor and a sprocket installed outside the separation body, the sprocket is connected to the output shaft of the driving motor, and the annular chain is rotatably connected to the sprocket.

[0013] Furthermore, the driving motor is movably arranged on the outside of the separation body, and the annular chain is tensioned by moving the driving motor to adjust the distance between the sprocket and the other end of the annular sheet metal.

[0014] Furthermore, a strip hole is provided on a wall of the separation body close to the drive motor, the extension direction of the strip hole is the same as the extension direction of the ring chain, and the drive motor is mounted on the strip hole by bolts.

[0015] The present invention provides a magnetic separation device, which adopts a structure in which a scraping unit and a magnetic adsorption unit cooperate. The scraper unit rotating along the magnetic adsorption unit can timely transport the chips adsorbed on the separation panel of the magnetic adsorption unit to the chip discharge port of the separation body for discharge, thereby preventing the accumulation of chips. In addition, a guide plate is arranged between the magnetic adsorption unit and the liquid outlet, and the guide plate and the lower end of the annular separation panel are designed in accordance with the shape, so that the chips in the cutting fluid are confined in the gap between the guide plate and the annular separation panel, and the strong magnet arranged on the back of the end of the annular separation panel will adsorb all the chips in the cutting fluid, thereby preventing the chips from escaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a magnetic separation device of the present invention;

[0017] Figure 2 A cross-sectional view of a magnetic separation device of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the scraping unit of the present invention.

[0019] Reference numerals

[0020] 1 separation body, 2 magnetic adsorption unit, 3 scraping unit, 4 driving unit, 11 liquid inlet, 12 chip discharge port, 13 liquid outlet, 14 drainage plate, 15 strip hole, 21 annular separation panel, 22 magnet, 23 first support wheel, 24 second support wheel, 25 connecting plate, 31 chain, 32 scraper, 33 brush, 41 driving mechanism, 42 sprocket, 111 buffer plate, 121 baffle, 141 connecting part, 142 arc part. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0022] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right", "top", "bottom", "bottom end", "top end" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] The present invention provides a magnetic separation device, which is used to separate chips in liquid. The magnetic separation device includes a separation body, a magnetic adsorption unit arranged in the separation body, a scraping unit that can rotate around the magnetic adsorption unit, and a driving unit that drives the scraping unit to rotate; a chip discharge port and a liquid outlet are respectively arranged on the lower side of the separation body; the magnetic adsorption unit includes an annular separation panel obliquely arranged in the separation body, a magnet is arranged on the inner side of the annular separation panel, and the scraping unit can rotate around the annular separation panel.

[0025] The present invention provides a magnetic separation device, which adopts a structure in which a scraping unit and a magnetic adsorption unit are coordinated. The scraper unit rotating along the magnetic adsorption unit can promptly transport the chips adsorbed on the separation panel of the magnetic adsorption unit to the chip discharge port of the separation body for discharge, thereby preventing the accumulation of chips.

[0026] The magnetic separation device is described below in conjunction with specific embodiments to further understand the inventive concept of the magnetic separation device.

[0027] In one embodiment, if Figure 1-3As shown, the magnetic separation device is used to separate the chips in the liquid, and the magnetic separation device comprises a separation body 1, a magnetic adsorption unit 2 arranged in the separation body 1, a scraping unit 3 that can rotate around the magnetic adsorption unit 2, and a driving unit 4 that drives the scraping unit 3 to rotate. The upper side of the separation body 1 is provided with a liquid inlet 11, and the lower side of the separation body 1 is provided with a chip removal port 12 and a liquid outlet 13, specifically, the liquid outlet 13 is arranged in the middle position of the lower wall of the separation body 1, and the chip removal port 12 and the liquid inlet 11 are located on both sides of the liquid outlet 13, that is, the chip removal port 12 is arranged at one end of the lower wall of the separation body 1, and the liquid inlet 11 is arranged on the upper wall of the separation body away from the chip removal port 12. The magnetic adsorption unit 2 comprises an annular separation panel 21 obliquely arranged in the separation body 1, and a magnet 22 is arranged on the inner side of the annular separation panel 21, that is, the magnet 22 is arranged on the inner side of the annular separation panel 21, and the scraping unit 3 can rotate around the annular separation panel 21. Specifically, a first support wheel 23 and a second support wheel 24 are arranged in the separation body 1, the first support wheel 23 is arranged in the lower space of the separation body 1, and the second support wheel 24 is arranged in the upper space of the separation body 1, the diameter of the second support wheel 24 is smaller than the diameter of the first support wheel 23, the lower end of the annular separation panel 21 is fixed around the periphery of the first support wheel 23, the upper end of the annular separation panel 21 is connected to the second support wheel 24 through a connecting plate 25, one end of the connecting plate 25 is fixedly connected to the second support wheel 24, and the other end of the connecting plate 25 is slidably connected to the back side of the annular separation panel 21. It should be noted that the first support wheel 23 and the second support wheel 24 are fixed wheels and do not rotate, and the annular separation panel 21 is made of stainless steel.

[0028] like Figure 2 As shown, a buffer plate 111 is provided near the liquid inlet 11 in the separation body 1 to prevent liquid splashing at the liquid inlet 11. A baffle 121 is provided on one side of the chip removal port 12 near the liquid outlet 13 to prevent chips from splashing.

[0029] In another embodiment, if Figure 2As shown, a guide plate 14 is arranged between the magnetic adsorption unit 2 and the liquid outlet 13, and the guide plate 14 is designed to conform to the lower end of the annular separation panel 21, that is, the guide plate 14 is designed to conform to the end of the annular separation panel 21 close to the first support wheel 23, and a liquid flow gap is reserved between the guide plate 14 and the lower end of the annular separation panel 21. Specifically, the guide plate 14 includes a connecting portion 141 and an arc portion 142 connected in sequence, wherein one end of the connecting portion 141 is fixedly connected to the lower wall of the separation body 1, and the connecting portion 141 is located on the side of the liquid outlet 13 away from the chip discharge port 12, and the other end of the connecting portion 141 is connected to the arc portion 142, and a liquid flow gap is formed between the arc portion and the annular separation panel 21, and the chips in the flow gap are adsorbed by the magnet on the back of the annular separation panel. When the scraping unit 3 moves to the flow gap, the chips adsorbed on the annular separation panel 21 are scraped off and transported to the top of the chip discharge port 12 by the scraping unit 3. Under the action of gravity, the chips will fall to the chip discharge port 12 for discharge.

[0030] In another embodiment, if Figure 2 As shown, the magnet 22 is arranged on the inner side surface of the annular separation panel 21 close to the guide plate 14 at one end, that is, the magnet 22 is arranged only on the inner side surface of the annular separation panel 21 at one end of the first support wheel 23, so that the chips in the flow gap will be adsorbed on the surface of the annular separation panel 21 outside the first support wheel 23, and there is no need to arrange magnets on the back side of the annular separation panel 21 at other positions, so that the scraping unit 3 can transport the chips smoothly without being hindered by the adsorption effect of magnets at other positions.

[0031] In another embodiment, if Figure 3 As shown, the scraper unit 3 includes an annular chain 31 surrounding the annular separation panel 21 and a plurality of scrapers 32 uniformly arranged on the annular chain 31; the annular chain 31 is driven to rotate by the driving unit 4, and the scrapers 31 scrape the chips adsorbed on the annular separation panel 21 to the chip discharge port 12 for discharge. Specifically, two annular chains 31 are respectively arranged on both sides of the annular separation panel 21, and the two ends of the scrapers 32 are respectively connected to each annular chain 31. When the driving unit 4 drives the annular chain 31 to rotate, the annular chain 31 drives the scrapers 32. When the scrapers move to the bottom of the first support wheel 23, the chips adsorbed on the annular separation panel 21 will be scraped off, and the scrapers continue to move forward with the scrapers 32. When the scrapers move to the top of the chip discharge port 12, when the scrapers move to the second support wheel 24, the chips fall to the chip discharge port 12 for discharge under the action of gravity.

[0032] In another embodiment, if Figure 3As shown, the annular chain 31 is also provided with a brush 33, and the brush 33 is installed at intervals from the scraper 32. The brush 33 is used to brush off some of the debris adsorbed on the annular separation panel 21, and transported to the chip discharge port 12 for discharge.

[0033] In another embodiment, a plurality of water outlets are provided on the scraper 32, through which the liquid brought out by the scraper leaks out.

[0034] In another embodiment, if Figure 3 As shown, a gap is reserved between the free end of the scraper 32 and the annular separation panel 21 to prevent the scraper 32 from damaging the surface of the annular separation panel 21 during rotation; the brush fits tightly against the annular separation panel 21, thereby intercepting debris escaping from the gap between the scraper 32 and the separation panel, i.e., the water outlet of the scraper 32, again.

[0035] In another embodiment, if Figure 1 As shown, the driving unit includes a driving mechanism 41 and a sprocket 42 installed on the outside of the separation body 1, the sprocket 42 is connected to the output shaft of the driving motor 41, and the ring chain 31 is connected to the sprocket 42. The output shaft passes through the through hole of the second support wheel 24, the output shaft is connected to the second support wheel 24 through a bearing, and the sprocket 42 is installed on the output shaft. After the driving mechanism 41 is started, the rotation of the output shaft can drive the sprocket to rotate, thereby driving the chain 3 to move.

[0036] In another embodiment, if Figure 1-3 As shown, the driving motor 41 is movably arranged on the outside of the separation body 1, and the distance between the sprocket 42 and the other end of the annular sheet metal 21 is adjusted by moving the driving motor 41 to tighten the annular chain 31. A strip hole 15 is arranged on a wall of the separation body 1 close to the driving motor 41, and the extension direction of the strip hole 15 is the same as the extension direction of the annular chain 31. The driving motor 41 is mounted on the strip hole 15 by bolts. When the chain 31 needs to be tightened, the bolt is loosened, and the driving motor 41 is moved along the strip hole 15, and the corresponding output shaft drives the sprocket 42 to move, so that the movement of the sprocket 42 can tighten the chain 31. After the chain 31 is tightened, the bolt is tightened to fix the driving motor 41. It should be noted that when the position of the output shaft moves, the corresponding second support wheel 24 rotatably connected to the output shaft will also move. When the second support wheel moves, the connecting plate 25 will slide along the back of the annular separation panel 21. Therefore, during the process of tensioning the chain, as the second support wheel 24 moves, the annular separation panel 21 will not move.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A magnetic separation device for separating chips in liquid, characterized in that: The magnetic separation device comprises a separation body (1), a magnetic adsorption unit (2) arranged in the separation body (1), a scraping unit (3) that can rotate around the magnetic adsorption unit (2), and a driving unit (4) that drives the scraping unit (3) to rotate; a chip discharge port (12) and a liquid outlet (13) are respectively arranged on the lower side of the separation body (1); the magnetic adsorption unit (2) comprises an annular separation panel (21) that is obliquely arranged in the separation body (1), a magnet (22) is arranged on the inner side of the annular separation panel (21), and the scraping unit (3) can rotate around the annular separation panel (21).

2. A magnetic separation device according to claim 1, characterized in that: A guide plate (14) is provided between the magnetic adsorption unit (2) and the liquid outlet (13); the guide plate (14) and the lower end of the annular separation panel (21) are designed to conform to the shape; a gap for liquid flow is reserved between the guide plate (14) and the lower end of the annular separation panel (21).

3. A magnetic separation device according to claim 2, characterized in that: The magnet (22) is arranged on the inner side of one end of the annular separation panel (21) close to the guide plate (14).

4. A magnetic separation device according to claim 1, characterized in that: The scraper unit (3) comprises an annular chain (31) surrounding the annular separation panel (21) and a plurality of scrapers (32) evenly arranged on the annular chain (31); the annular chain (31) is driven to rotate by the driving unit (4), and the scrapers (31) scrape the chips adsorbed on the annular separation panel (21) to the chip discharge port (12) for discharge.

5. A magnetic separation device according to claim 4, characterized in that: The ring chain (31) is also provided with a brush (33), and the brush (33) is installed at a distance from the scraper (32).

6. A magnetic separation device according to claim 4, characterized in that: The scraper (32) is provided with a plurality of water outlets.

7. A magnetic separation device according to claim 5, characterized in that: A gap is reserved between the free end of the scraper (32) and the annular separation panel (21); and the brush (33) is tightly fitted to the annular separation panel (21).

8. A magnetic separation device according to claim 4, characterized in that: The driving unit (4) comprises a driving motor (41) and a sprocket (42) mounted on the outside of the separation body (1); the sprocket (42) is connected to the output shaft of the driving motor (41); and the ring chain (31) is rotationally connected to the sprocket (42).

9. A magnetic separation device according to claim 8, characterized in that: The driving motor (41) is movably arranged outside the separation body (1), and the annular chain (31) is tensioned by adjusting the distance between the sprocket (42) and the other end of the annular sheet metal (21) by moving the driving motor (41).

10. A magnetic separation device according to claim 9, characterized in that: A strip hole (15) is provided on a wall of the separation body (1) close to the drive motor (41); the extension direction of the strip hole (15) is the same as the extension direction of the ring chain (31); and the drive motor (41) is mounted on the strip hole (15) by means of bolts.

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