A machining center cooling liquid oil-water separation device

Abstract

The present application relates to the technical field of oil-water separation, and particularly relates to an oil-water separation device for machining center cooling liquid. The existing device is inconvenient to completely clean the particulate impurities when separating the oil-water mixture, is prone to cause the filter screen membrane to be blocked, and is inconvenient to clean the residual oil stains, is prone to cause the adhered oil stains to be mixed into the cooling liquid again, thereby reducing the oil-water separation efficiency. The present application comprises a collecting barrel, a liquid inlet pipe and a valve, etc. The liquid inlet pipe is fixedly connected to the upper end of the collecting barrel, and the valve is fixedly connected to one end of the liquid inlet pipe. The present application can more completely discharge the particulate impurities in advance by layering the oil-water mixture, effectively prevents the particulate impurities from causing the filter to be blocked, can increase the stability of the oil-water mixture injection, and reduces the adhesion and residue of the oil stains, thereby more fully discharges the oil stains in the oil-water mixture, thereby effectively improving the oil-water separation efficiency.

Description

An oil-water separator for coolant in a machining center Technical Field

[0001] This invention relates to the field of oil-water separation technology, and in particular to an oil-water separation device for machining center coolant. Background Technology

[0002] Machining centers generally refer to CNC milling machines, which are automated machining equipment developed from general milling machines. When machining workpieces, a cooling system is typically installed in the machining center to reduce the heat generated during processing. Coolant is used to cool the workpiece. However, over long-term use, the coolant can mix with machine oil or lubricating oil. This oil residue floats on the surface of the coolant, forming an oil film that isolates the air, leading to the growth of a large number of microorganisms in the coolant. Therefore, it is necessary to separate this oil-water mixture so that the coolant can be reused.

[0003] However, current oil-water separators have the following problems when separating the oil and water mixture from the coolant:

[0004] 1. During use, coolant is prone to mixing with particulate impurities generated during workpiece processing. When current oil-water separation devices filter and separate the oil-water mixture, these particulate impurities remain on the filter membrane along with oil. The oil adheres to the particulate impurities and makes them sticky, making it difficult for current oil-water separation devices to thoroughly clean the particulate impurities. This can easily cause the filter membrane to become clogged, thereby reducing the oil-water separation efficiency of the oil-water mixture.

[0005] 2. Because the oil in the oil-water mixture has strong adhesion, when the oil-water mixture is introduced into the oil-water separator, the oil easily splashes and adheres to the inner wall of the device. Moreover, during the separation process of the oil-water mixture, the oil will also remain on the inner wall of the device. However, the current oil-water separator is not easy to clean the residual oil, which can easily cause the adhered oil to mix back into the coolant, resulting in insufficient separation of oil in the oil-water mixture. Summary of the Invention

[0006] In view of this, the present invention provides an oil-water separation device for machining center coolant. By discharging the oil-water mixture in layers, particulate impurities can be discharged more thoroughly in advance, effectively preventing particulate impurities from causing filter blockage. It can also increase the stability of the oil-water mixture injection and reduce the adhesion and residue of oil stains, thereby more fully discharging the oil stains in the oil-water mixture and effectively improving the oil-water separation efficiency.

[0007] The technical solution is as follows: an oil-water separation device for machining center coolant, comprising a collection tank, an inlet pipe, a valve, a grooved cylinder, a cross plate, a drive mechanism, and an opening and closing mechanism. The collection tank has an outlet at its bottom, the inlet pipe is fixedly connected to the upper end of the collection tank, the valve is fixedly connected to one end of the inlet pipe, the grooved cylinder is fixedly connected to the bottom of the inner wall of the collection tank, and a groove is formed on the grooved cylinder. The cross plate is fixedly connected to the inner side of the grooved cylinder, the drive mechanism is located on the cross plate, and the opening and closing mechanism is located on the drive mechanism. The drive mechanism is used to dispense the oil-water mixture. After the oil-water mixture enters the drive mechanism, the drive mechanism drives the opening and closing mechanism to discharge the oil-water mixture within the drive mechanism, allowing the coolant and particulate impurities in the oil-water mixture to be pre-discharged. Then, the opening and closing mechanism separates the remaining oil-water mixture, thereby improving the oil-water separation efficiency through stratified discharge.

[0008] As an improvement to the above solution, the drive mechanism includes a servo motor, a tripod, partition frames, guide rods, and guide wheels. The servo motor is fixedly connected to the lower surface of the cross plate, and the output shaft of the servo motor is rotatably connected to the cross plate. The tripod is fixedly connected to the output shaft of the servo motor, and three partition frames are slidably connected to the tripod. One partition frame is located directly below the valve. Each partition frame has an inclined surface on its inner bottom side. A guide rod is fixedly connected to the bottom of each partition frame, and a guide wheel is rotatably connected to the lower end of each guide rod. Each guide wheel contacts the top of the grooved cylinder.

[0009] As an improvement to the above solution, the opening and closing mechanism includes a three-way pipe, a plug, a return spring, a connecting frame, a first inclined block, a second inclined block, a filter frame, a fixed frame, and a rotating wheel. A three-way pipe is fixedly connected to the lower part of each partition frame, and the three-way pipe communicates with the partition frame. A plug is slidably connected to each three-way pipe, and a return spring connects the three-way pipe and the plug. A connecting frame is fixedly connected to each plug, and the connecting frame is slidably connected to the three-way pipe. An inclined block and an inclined block are fixedly connected to the outer wall of the grooved cylinder. The filter frame is snapped onto the collection bucket. The fixed frame is fixedly connected to the inner wall of the collection bucket on the side close to the filter frame. The filter frame is located above the fixed frame and is in contact with the fixed frame. A rotating wheel is rotatably connected to the lower end of each connecting frame.

[0010] As an improvement to the above solution, it also includes a slant bracket, a threaded rod, and a handle. The slant bracket is slidably connected to the grooved cylinder, the threaded rod is threadedly connected to the bottom end of the slant bracket and passes through the grooved cylinder, and the handle is fixedly connected to the bottom end of the threaded rod, with the handle in contact with the lower surface of the grooved cylinder.

[0011] As an improvement to the above solution, the lower surface of the grooved cylinder that contacts the handle is a friction surface.

[0012] As an improvement to the above solution, it also includes a connecting disc and scrapers. The connecting disc is fixedly connected to the upper end of the three-pronged bracket, and three scrapers are fixedly connected to the connecting disc. The lower part of the scrapers is located inside the partition frame, and the scrapers are in contact with the inner wall of the partition frame.

[0013] As an improvement to the above solution, a cleaning mechanism is also included. The cleaning mechanism is located on the partition frame and connected to the scraper. The cleaning mechanism is used to clean the oil residue particles remaining at the bottom inside the partition frame, preventing oil residue particles in the oil-water mixture from remaining in the partition frame. The cleaning mechanism includes a corrugated rod, a scraper, a cylinder, and a roller. A corrugated rod is rotatably connected to the bottom inside each partition frame. A corrugated groove is opened at the upper end of each corrugated rod. A scraper is fixedly connected to the lower end of each corrugated rod. The scraper contacts the inclined surface of the partition frame. A cylinder is fixedly connected to each scraper. A roller is rotatably connected to the inside of each cylinder. The roller is slidably connected to the corrugated groove of the corrugated rod.

[0014] As an improvement to the above solution, a lifting mechanism is also included. The lifting mechanism is located on the valve and is used to adjust the injection height of the oil-water mixture to prevent the oil-water mixture from being injected too high and causing the oil stains on the surface of the coolant to slosh around. The lifting mechanism includes a bellows, a vertical cylinder, an electric push rod, and a connecting plate. The bellows is fixedly connected to the valve, and the vertical cylinder is fixedly connected to the bottom end of the bellows, and the bellows and the vertical cylinder are connected. The vertical cylinder is located above one of the partition frames. The electric push rod is fixedly connected to the upper part of the inner wall of the collection tank, and the connecting plate is fixedly connected to the telescopic rod of the electric push rod. The other end of the connecting plate is fixedly connected to the upper end of the vertical cylinder.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses a servo motor to drive the tripod to rotate slowly, causing the three partition frames to rotate slowly. The oil-water mixture from the machining center is added to the three partition frames sequentially through the inlet pipe. The rotation of the three partition frames causes them to move downwards along the grooved cylinder in sequence, so that the three rotating wheels are squeezed by the inclined blocks in sequence, thereby causing the three blocking frames to move in sequence and open the three-way pipe. Then, the coolant and particulate impurities in the lower layer of the three partition frames are discharged into the collection bucket in sequence, thereby performing preliminary separation of the oil-water mixture in the partition frames. After disengaging from the inclined block, the blocking frame will re-block the T-connector. Then, the three partition frames will move upward along the grooved cylinder, causing the three rotating wheels to be squeezed by the inclined block in sequence, thereby opening the three T-connectors in sequence. The remaining oil-water mixture in the three partition frames will be discharged into the filter frame in sequence, and the oil-water mixture will be filtered and separated. Through the above operation, the oil-water mixture in the three partition frames will be discharged in layers in sequence, so that the coolant in the oil-water mixture will be discharged quickly, and the oil-water mixture will be separated quickly, thereby improving the oil-water separation efficiency.

[0016] 2. This invention moves the partition frame downwards, causing the corrugated rod and scraper to move downwards as well. While the corrugated rod moves downwards, it rotates back and forth under the constraint of the roller, causing the scraper to swing back and forth and continuously scrape away the particulate impurities deposited in the partition frame. These impurities slide down to the vicinity of the three-way pipe. As the three-way pipe opens, the coolant discharged from the lower layer of the partition frame flushes out the particulate impurities accumulated near the three-way pipe. This process thoroughly removes particulate impurities from the oil-water mixture, preventing residual impurities from clogging the filter frame. This allows the filter frame to continuously filter and separate the oil-water mixture. When the partition frame moves upwards, the scraper scrapes the inner wall of the partition frame, removing residual oil and reducing oil residue. This ensures that the oil is discharged more completely during the secondary discharge of the oil-water mixture, effectively improving the oil-water separation efficiency.

[0017] 3. This invention discharges the oil-water mixture into the partition frame through a corrugated pipe and a vertical cylinder. Because the lower end of the vertical cylinder is close to the bottom of the partition frame, the impact force when the oil-water mixture is injected is small, which can reduce the turbulence of oil stains on the surface of the oil-water mixture and prevent oil stains in the oil-water mixture from splashing onto the inner wall of the partition frame. After the oil-water mixture is injected, the electric push rod drives the connecting plate and the vertical cylinder to move upward. When the next partition frame moves below the valve, the vertical cylinder will move downward and inject the oil-water mixture into the next partition frame. This process is repeated, thereby improving the stability of the oil-water mixture injection and reducing the turbulence of oil stains in the oil-water mixture and their adhesion to the inner wall of the partition frame. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 is a three-dimensional structural diagram of the collection bucket, inlet pipe, valve and lifting mechanism of the present invention.

[0020] Figure 3 is a cross-sectional three-dimensional structural diagram of the present invention.

[0021] Figure 4 is a three-dimensional structural diagram of the filter frame of the present invention.

[0022] Figure 5 is a partial three-dimensional structural diagram of the driving mechanism, opening and closing mechanism and adjusting mechanism of the present invention.

[0023] Figure 6 is a partially disassembled three-dimensional structural diagram of the driving mechanism, opening and closing mechanism and adjusting mechanism of the present invention.

[0024] Figure 7 is a partial cross-sectional three-dimensional structural schematic diagram of the driving mechanism, opening and closing mechanism and cleaning mechanism of the present invention.

[0025] Figure 8 is a partial cross-sectional three-dimensional structural schematic diagram of the grooved cylinder and the adjustment mechanism of the present invention.

[0026] Figure 9 is a partial cross-sectional three-dimensional structural schematic diagram of the driving mechanism, cleaning mechanism and lifting mechanism of the present invention.

[0027] Figure 10 is an enlarged three-dimensional structural diagram of A in Figure 9 of this invention.

[0028] Figure 11 is a partial three-dimensional structural diagram of the connecting disc, scraper, and cleaning mechanism of the present invention.

[0029] Figure 12 is a partial cross-sectional three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0030] Labels in the diagram: 1-Collection bucket, 2-Inlet pipe, 3-Valve, 4-Groove cylinder, 5-Cross plate, 61-Servo motor, 62-Tripod, 63-Separator frame, 64-Guide rod, 65-Guide wheel, 71-T-connector, 72-Block, 73-Reset spring, 74-Connecting frame, 75-Inclined block one, 76-Inclined block two, 77-Filter frame, 78-Fixed frame, 79-Rotating wheel, 81-Inclined frame, 82-Threaded rod, 83-Handle, 91-Connecting disc, 92-Scraper frame, 101-Corrugated groove rod, 102-Scraper, 103-Cylinder body, 104-Roller, 111-Corrugated pipe, 112-Vertical cylinder, 113-Electric push rod, 114-Connecting plate. Detailed Implementation

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Example 1: An oil-water separator for machining center coolant, as shown in Figures 1-7, includes a collection tank 1, an inlet pipe 2, a valve 3, a grooved cylinder 4, a cross plate 5, a drive mechanism, and an opening and closing mechanism. The collection tank 1 has an outlet at the bottom. The inlet pipe 2 is bolted to the upper end of the collection tank 1 and is horizontally positioned. The valve 3 is fixedly connected to one end of the inlet pipe 2. The grooved cylinder 4 is bolted to the bottom of the inner wall of the collection tank 1 and has grooves. The cross plate 5 is welded to the inner side of the grooved cylinder 4. The drive mechanism is located on the cross plate 5, and the opening and closing mechanism is located on the drive mechanism. The drive mechanism is used to dispense the oil-water mixture. After the oil-water mixture enters the drive mechanism, the drive mechanism drives the opening and closing mechanism to discharge the oil-water mixture in the drive mechanism, so that the coolant and particulate impurities in the oil-water mixture are discharged in advance. Then, the opening and closing mechanism separates the remaining oil-water mixture, thereby improving the oil-water separation efficiency through stratified discharge.

[0033] The drive mechanism includes a servo motor 61, a tripod 62, partition frames 63, guide rods 64, and guide wheels 65. The servo motor 61 is bolted to the lower surface of the cross plate 5. The output shaft of the servo motor 61 is rotatably connected to the cross plate 5. The tripod 62 is bolted to the output shaft of the servo motor 61. Three partition frames 63 are slidably connected to the tripod 62. The tripod 62 is used to drive the three partition frames 63 to rotate. The three partition frames 63 are evenly spaced. The partition frames 63 are used to hold oil-water mixtures. One partition frame 63 is located directly below the valve 3. The bottom inner side of each partition frame 63 is provided with a slope. A guide rod 64 is welded to the bottom of each partition frame 63. A guide wheel 65 is rotatably connected to the lower end of each guide rod 64. Each guide wheel 65 contacts the top of the grooved cylinder 4. The guide wheel 65 is used to reduce friction between the guide wheel and the grooved cylinder 4.

[0034] The opening and closing mechanism includes a three-way pipe 71, a plug bracket 72, a return spring 73, a connecting bracket 74, a first inclined block 75, a second inclined block 76, a filter frame 77, a fixing bracket 78, and a rotating wheel 79. A three-way pipe 71 is fixedly connected to the lower part of each partition frame 63, and the three-way pipe 71 communicates with the partition frame 63. A plug bracket 72 is slidably connected to each three-way pipe 71, and the plug bracket 72 is used to block the lower end of the three-way pipe 71. A return spring 73 is connected between the three-way pipe 71 and the plug bracket 72, and the return spring 73 is sleeved on the three-way pipe 71. A connecting bracket 74 is welded to each plug bracket 72, and the connecting bracket 74 is slidably connected to the three-way pipe 71. The outer wall of the grooved cylinder 4... An inclined block 75 and an inclined block 76 are welded together. The inclined block 76 is located diagonally above the inclined block 75. A filter frame 77 is snapped onto the collection tank 1. The filter frame 77 is used to filter oil stains in the oil-water mixture. A fixing frame 78 is welded to the inner wall of the collection tank 1 near the filter frame 77. The filter frame 77 is located above the fixing frame 78 and is in contact with the fixing frame 78. The fixing frame 78 is used to support the filter frame 77. Each connecting frame 74 has a rotating wheel 79 rotatably connected to its lower end. The inclined block 76 and the inclined block 75 are used to squeeze the rotating wheel 79 to move, so that the blocking frame 72 moves and opens the three-way pipe 71 to discharge the oil-water mixture in the separator frame 63.

[0035] Initially, the blockage bracket 72 blocked the lower end of the three-way pipe 71. In actual operation, the operator placed the collection bucket 1 directly below the machining center, then introduced the oil-water mixture from the machining center into the inlet pipe 2, and then opened the valve 3. In the initial state, the partition frame 63 located directly below the valve 3 was the first partition frame 63, and the guide rod 64 and guide wheel 65 located on the first partition frame 63 were the first guide rods 64 and guide wheels 65. The oil-water mixture would be discharged into the first partition frame 63 through the valve 3. Since the density of oil is less than that of coolant, the oil sludge in the oil-water mixture would float on the surface of the coolant, while the density of particulate impurities is greater than that of coolant, and the particulate impurities in the oil-water mixture would settle at the bottom of the coolant. Then the operator started... Servo motor 61, the output shaft of servo motor 61 slowly rotates, driving the tripod 62 to rotate. The slow rotation of tripod 62 drives the three partition frames 63 to rotate together. The rotation of partition frames 63 drives the guide rod 64, guide wheel 65, tee pipe 71, plug bracket 72, connecting bracket 74, and rotating wheel 79 to rotate together. As the guide wheel 65 rotates, it also rotates along the top of the grooved cylinder 4, thereby reducing the friction between the grooved cylinder 4 and the guide wheel 65. The first partition frame 63 rotates away from the valve 3, and then the next partition frame 63 rotates to be below the valve 3, so that the valve 3 adds oil-water mixture to the next partition frame 63. When the first partition frame 63 rotates to the top of the groove of the grooved cylinder 4, the top of the grooved cylinder 4 no longer supports the first guide wheel 65. As the partition frame 63, guide rod 64, and guide wheel 65 continue to rotate, they slowly move downwards along the groove of the grooved cylinder 4 under the influence of gravity. The downward movement of the first partition frame 63 causes the first tee pipe 71, plug bracket 72, connecting bracket 74, and rotating wheel 79 to move downwards as well. After moving downwards, the first rotating wheel 79 continues to rotate and comes into contact with the inclined block 75. The first rotating wheel 79 is squeezed by the inclined block 75, causing the first plug bracket 72, connecting bracket 74, and rotating wheel 79 to move away from the partition frame 63. The first return spring 73 is stretched, and the first plug bracket 72, now no longer blocking the lower end of the first tee pipe 71, allows the coolant and particulate impurities in the lower layer of the first partition frame 63 to be discharged through the first tee pipe 71. The coolant and particulate impurities separated in the collection tank 1 will be discharged through the outlet of the collection tank 1 and further processed. Through the above operations, the oil-water mixture in the separator 63 is initially separated. The first rotating wheel 79 continues to rotate while also rotating along the inclined block 75, thereby reducing the friction between the rotating wheel 79 and the inclined block 75. Then, the first rotating wheel 79 continues to rotate and disengages from the inclined block 75. The first return spring 73 resets, causing the first blocking bracket 72, connecting bracket 74, and rotating wheel 79 to reset together, so that the first blocking bracket 72 re-blocks the first tee pipe 71. At this time, half of the oil-water mixture remains in the first separator 63, and the oil contaminants in the oil-water mixture are still within the first separator 63.Then, the first partition frame 63, guide rod 64, and guide wheel 65 continue to rotate and move upward along the protrusion of the grooved cylinder 4. The upward movement of the first partition frame 63 will drive the first tee pipe 71, plug bracket 72, connecting bracket 74, and rotating wheel 79 to move upward. After the first rotating wheel 79 moves upward, it continues to rotate and will contact the inclined block 76. At this time, the first tee pipe 71 is located above the filter frame 77. At the same time, the next partition frame 63 will rotate to the groove of the grooved cylinder 4. The next partition frame 63, guide rod 64, and guide wheel 65 continue to rotate and move slowly downward along the groove of the grooved cylinder 4. Then the first rotating wheel 79... As rotation continues, the first blocking frame 72, connecting frame 74, and rotating wheel 79 are squeezed by the second inclined block 76, causing them to move away from the partition frame 63. The first return spring 73 is stretched again, and the first rotating wheel 79 continues to rotate while also rotating along the second inclined block 76, thus reducing the friction between the rotating wheel 79 and the second inclined block 76. The first blocking frame 72 moves and no longer blocks the lower end of the first tee pipe 71. Then, the remaining oil-water mixture in the first partition frame 63 is discharged into the filter frame 77 through the first tee pipe 71. The filter frame 77 filters and separates the oil-water mixture, and the coolant in the oil-water mixture is... The liquid flows into collection bucket 1, while the oil in the oil-water mixture is collected in filter frame 77. Since some of the coolant in the oil-water mixture has already been discharged, filter frame 77 can separate the oil and water in the mixture more quickly. After the oil-water mixture in the first separator 63 is discharged, the first rotating wheel 79 continues to rotate and will disengage from the inclined block 76. The first return spring 73 will reset, causing the first blocking frame 72, connecting frame 74, and rotating wheel 79 to reset together, so that the first blocking frame 72 blocks the first tee pipe 71 again. Then the first separator 63 continues to rotate and will be below valve 3 again. Simultaneously, the next rotating wheel 79 rotates and contacts and is squeezed by the inclined block 75, causing the next three-way pipe 71 to open and discharge the coolant from the separator 63. This process is repeated, thereby sequentially discharging the oil-water mixture in the three separators 63 in layers. This allows for rapid discharge of coolant from the oil-water mixture and rapid oil-water separation, improving the oil-water separation efficiency. After oil-water separation is complete, the operator turns off the servo motor 61, removes the filter frame 77, cleans the oil stains on the filter frame 77, and then places the filter frame 77 back onto the mounting bracket 78.

[0036] Example 2: Based on Example 1, as shown in Figures 3-8, it further includes a slant bracket 81, a threaded rod 82, and a handle 83. The slant bracket 81 is slidably connected to the grooved cylinder 4. The slant bracket 81 is used to adjust the distance that the guide wheel 65 moves within the groove of the grooved cylinder 4. The threaded rod 82 is threadedly connected to the bottom end of the slant bracket 81. The threaded rod 82 is vertically arranged and passes through the grooved cylinder 4. The handle 83 is welded to the bottom end of the threaded rod 82 and contacts the lower surface of the grooved cylinder 4.

[0037] The lower surface of the grooved cylinder 4 that contacts the handle 83 is a friction surface.

[0038] Initially, the staff can adjust the initial discharge rate of the oil-water mixture based on the oil content. If the oil content is high, the oil floating on the coolant surface will be thicker, requiring a reduction in the initial discharge rate to prevent the oil from being discharged from the separator 63 during the initial discharge. The staff first opens the filter frame 77, then reaches into the collection bucket 1 and moves the inclined frame 81. Once the inclined frame 81 is in the appropriate position, the staff turns the handle 83 so that the handle 83 is tightly pressed against the grooved cylinder 4. The friction surface simultaneously causes the bottom of the inclined frame 81 to press tightly against the grooved cylinder 4, thereby locking the inclined frame 81 and preventing it from shifting. When the guide wheel 65 moves into the groove of the grooved cylinder 4, the guide wheel 65 continues to move and contacts the inclined frame 81, and moves upward along the inclined frame 81, thereby causing the rotating wheel 79 to disengage from the inclined block 75 and causing the blocking frame 72 to close the three-way pipe 71. Thus, through the above operations, the initial discharge of the oil-water mixture in the separator frame 63 is reduced, so that the oil stains in the oil-water mixture in the separator frame 63 can be more thoroughly discharged into the filter frame 77 for filtration.

[0039] Example 3: Based on Example 2, as shown in Figures 1-11, it also includes a connecting disc 91 and a scraper 92. The connecting disc 91 is welded to the upper end of the three-pronged bracket 62. Three scrapers 92 are welded to the connecting disc 91. The three scrapers 92 are evenly spaced. The lower part of the scraper 92 is located inside the partition frame 63, and the scraper 92 is in contact with the inner wall of the partition frame 63. The scraper 92 is used to scrape away the oil stains remaining on the inner side wall of the partition frame 63.

[0040] It also includes a cleaning mechanism, which is located on the partition frame 63 and connected to the scraper 92. The cleaning mechanism is used to clean the oil residue particles remaining on the inner bottom of the partition frame 63, preventing oil residue particles in the oil-water mixture from remaining in the partition frame 63. The cleaning mechanism includes a corrugated rod 101, a scraper 102, a cylinder 103, and a roller 104. A corrugated rod 101 is rotatably connected to the inner bottom of each partition frame 63. The corrugated rod 101 is vertically arranged and passes through the scraper 92. The upper end of each corrugated rod 101 has The corrugated groove is provided, and a scraper 102 is welded to the lower end of each corrugated groove rod 101. The scraper 102 contacts the inclined surface of the separator frame 63 and is used to scrape the particulate impurities settled at the bottom of the separator frame 63. A cylinder 103 is welded to each scraper frame 92, and a roller 104 is rotatably connected to the inner side of each cylinder 103. The roller 104 is slidably connected to the corrugated groove of the corrugated groove rod 101. The roller 104 is used to drive the corrugated groove rod 101 to move downward and rotate left and right, thereby driving the scraper 102 to swing left and right.

[0041] Initially, when the oil-water mixture is discharged into the separator 63, it submerges the lower end of the scraper 92. As the tripod 62 rotates, it drives the connecting disc 91 and the three scrapers 92 to rotate together. When the separator 63 moves downwards along the groove of the grooved cylinder 4, it drives the corrugated rod 101 and the scraper 102 downwards together. Since the scrapers 92 do not move downwards, the cylinder 103 and the roller 104 also do not move downwards. While the corrugated rod 101 moves downwards, it rotates back and forth under the constraint of the roller 104. This back-and-forth rotation of the corrugated rod 101 drives the scraper 102 to swing back and forth. The back-and-forth swing of the scraper 102 continuously scrapes away the particulate impurities settled at the bottom inner side of the separator 63, causing the particulate impurities to slide down the inclined surface of the separator 63 to the vicinity of the tee pipe 71. Simultaneously, the scrapers 92 scrape the separator 63... As the three-way pipe 71 is opened, the coolant discharged from the lower layer of the separator 63 will flush out the particulate impurities accumulated near the three-way pipe 71. This process will further remove the particulate impurities from the oil-water mixture, preventing residual particulate impurities from clogging the filter frame 77. This allows the filter frame 77 to continuously filter and separate the oil-water mixture. As the coolant is discharged from the separator 63, the oil in the oil-water mixture will descend along the inner wall of the separator 63. When the separator 63 moves upward along the groove of the grooved cylinder 4, the scraper 92 will scrape the inner wall of the separator 63 again, removing the oil residue on the inner wall of the separator 63. This reduces the amount of oil residue on the separator 63, allowing for more thorough discharge of the oil-water mixture during the secondary discharge, thereby effectively improving the oil-water separation efficiency of the oil-water mixture.

[0042] Example 4: Based on Example 3, as shown in Figures 1-12, a lifting mechanism is also included. The lifting mechanism is located on valve 3 and is used to adjust the injection height of the oil-water mixture to prevent the oil-water mixture from being injected too high and causing the oil on the surface of the coolant to slosh. The lifting mechanism includes a bellows 111, a vertical cylinder 112, an electric push rod 113, and a connecting plate 114. The bellows 111 is fixedly connected to valve 3 and is telescopic. The vertical cylinder 112 is fixedly connected to the bottom end of the bellows 111 and is connected to the vertical cylinder 112. The vertical cylinder 112 is located above one of the partition frames 63. The electric push rod 113 is bolted to the upper part of the inner wall of the collection tank 1. The connecting plate 114 is bolted to the telescopic rod of the electric push rod 113. The connecting plate 114 is vertically set, and the other end of the connecting plate 114 is fixedly connected to the upper end of the vertical cylinder 112.

[0043] Initially, the lower end of the vertical cylinder 112 is located inside the first partition frame 63. The oil-water mixture, after passing through valve 3, is discharged into the first partition frame 63 via the bellows 111 and the vertical cylinder 112. Because the lower end of the vertical cylinder 112 is close to the bottom of the inner side of the partition frame 63, the impact force during the injection of the oil-water mixture is small, reducing the turbulence of oil stains on the surface of the mixture and preventing oil stains from splashing onto the inner wall of the partition frame 63 or splashing out. After the oil-water mixture is injected, the operator activates the electric push rod 113. The extension rod of the electric push rod 113... The extension will cause the connecting plate 114 and the vertical cylinder 112 to move upward together, the bellows 111 will be compressed, and then the first partition frame 63 will rotate and move away from the valve 3. Then the next partition frame 63 will move below the valve 3. The extension rod of the electric push rod 113 will retract and cause the connecting plate 114 and the vertical cylinder 112 to move downward together, the bellows 111 will be stretched, and then the oil-water mixture will be injected into the next partition frame 63. This process is repeated to improve the stability of the oil-water mixture injection and reduce the turbulence of oil stains in the oil-water mixture and their adhesion to the inner wall of the partition frame 63.

[0044] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An oil-water separator for coolant in a machining center, characterized in that, The system includes a collection tank (1), an inlet pipe (2), a valve (3), a grooved cylinder (4), a cross plate (5), a drive mechanism, and an opening and closing mechanism. The collection tank (1) has an outlet at the bottom. The inlet pipe (2) is fixedly connected to the upper end of the collection tank (1). The valve (3) is fixedly connected to one end of the inlet pipe (2). The grooved cylinder (4) is fixedly connected to the bottom of the inner wall of the collection tank (1). The grooved cylinder (4) has a groove. The cross plate (5) is fixedly connected to the inside of the grooved cylinder (4). The drive mechanism is located on the cross plate (5). The opening and closing mechanism is located on the drive mechanism. The drive mechanism is used to dispense the oil-water mixture. After the oil-water mixture enters the drive mechanism, the drive mechanism drives the opening and closing mechanism to dispense the oil-water mixture into the drive mechanism. The oil-water mixture is pre-discharged to remove coolant and particulate impurities. Then, the opening and closing mechanism separates the remaining oil-water mixture, thereby improving the oil-water separation efficiency through stratified discharge. The drive mechanism includes a servo motor (61), a tripod (62), a partition frame (63), a guide rod (64), and a guide wheel (65). The servo motor (61) is fixedly connected to the lower surface of the cross plate (5). The output shaft of the servo motor (61) is rotatably connected to the cross plate (5). The tripod (62) is fixedly connected to the output shaft of the servo motor (61). Three partition frames (63) are slidably connected to the tripod (62). One of the partition frames (63) is located at the valve (3). Directly below, each partition frame (63) has an inclined surface on its inner bottom. Each partition frame (63) is fixedly connected to a guide rod (64) at its bottom. Each guide rod (64) is rotatably connected to a guide wheel (65) at its lower end. Each guide wheel (65) is in contact with the top of the grooved cylinder (4). The opening and closing mechanism includes a three-way pipe (71), a plug (72), a reset spring (73), a connecting frame (74), an inclined block one (75), an inclined block two (76), a filter frame (77), a fixing frame (78), and a rotating wheel (79). Each partition frame (63) is fixedly connected to a three-way pipe (71) at its lower part, and the three-way pipe (71) is connected to the partition frame (63). Each three-way pipe (71) is fixedly connected to the partition frame (63). 1) Each of the three-way pipes (71) is connected to the plug frame (72) in a sliding manner. A return spring (73) is connected between the plug frame (72) and the three-way pipe (71). Each plug frame (72) is fixedly connected to a connecting frame (74). The connecting frame (74) is slidably connected to the three-way pipe (71). An inclined block one (75) and an inclined block two (76) are fixedly connected to the outer wall of the grooved cylinder (4). The filter frame (77) is snapped onto the collection bucket (1). The fixing frame (78) is fixedly connected to the inner wall of the collection bucket (1) on the side close to the filter frame (77). The filter frame (77) is located above the fixing frame (78) and the filter frame (77) is in contact with the fixing frame (78). Each connecting frame (74) is rotatably connected to a rotating wheel (79) at its lower end.

2. The oil-water separator for machining center coolant as described in claim 1, characterized in that, It also includes a slant bracket (81), a threaded rod (82) and a handle (83). The slant bracket (81) is slidably connected to the grooved cylinder (4). The threaded rod (82) is threadedly connected to the bottom end of the slant bracket (81) and passes through the grooved cylinder (4). The handle (83) is fixedly connected to the bottom end of the threaded rod (82) and contacts the lower surface of the grooved cylinder (4).

3. The oil-water separator for machining center coolant as described in claim 2, characterized in that, The lower surface of the grooved tube (4) that contacts the handle (83) is a friction surface.

4. The oil-water separator for machining center coolant as described in claim 3, characterized in that, It also includes a connecting plate (91) and scrapers (92). The connecting plate (91) is fixedly connected to the upper end of the three-pronged bracket (62). Three scrapers (92) are fixedly connected to the connecting plate (91). The lower part of the scrapers (92) is located inside the partition frame (63), and the scrapers (92) are in contact with the inner wall of the partition frame (63).

5. The oil-water separator for machining center coolant as described in claim 4, characterized in that, It also includes a cleaning mechanism, which is located on the partition frame (63) and connected to the scraper (92). The cleaning mechanism is used to clean the oil residue particles remaining on the bottom inner side of the partition frame (63) to prevent oil residue particles in the oil-water mixture from remaining in the partition frame (63). The cleaning mechanism includes a corrugated groove rod (101), a scraper (102), a cylinder (103), and a roller (104). Each partition frame (63) has a corrugated groove rotatably connected to the bottom inner side. The rod (101) has a corrugated groove at the upper end and a scraper (102) is fixedly connected to the lower end of each corrugated rod (101). The scraper (102) contacts the inclined surface of the partition frame (63). A cylinder (103) is fixedly connected to each scraper (92). A roller (104) is rotatably connected to the inner side of each cylinder (103). The roller (104) is slidably connected to the corrugated groove of the corrugated rod (101).

6. The oil-water separator for machining center coolant as described in claim 5, characterized in that, It also includes a lifting mechanism, which is located on the valve (3). The lifting mechanism is used to adjust the injection height of the oil-water mixture to prevent the oil-water mixture from being injected too high and causing the oil stains on the surface of the coolant to ripple. The lifting mechanism includes a bellows (111), a vertical cylinder (112), an electric push rod (113), and a connecting plate (114). The bellows (111) is fixedly connected to the valve (3), and the vertical cylinder (112) is fixedly connected to the bottom end of the bellows (111). The bellows (111) is connected to the vertical cylinder (112). The vertical cylinder (112) is located above one of the partition frames (63). The electric push rod (113) is fixedly connected to the upper part of the inner wall of the collection bucket (1). The connecting plate (114) is fixedly connected to the telescopic rod of the electric push rod (113). The other end of the connecting plate (114) is fixedly connected to the upper end of the vertical cylinder (112).

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