A polishing liquid filtering device and a polishing machine
By incorporating a settling tank, filter paper, and fine filter into the grinding slurry filtration device, multi-stage filtration is achieved, solving the problem of insufficient filtration accuracy in existing devices and improving the cleanliness of the grinding slurry and the grinding quality of the workpiece.
Patent Information
- Application Number
- CN202521780679.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-20
AI Technical Summary
Existing grinding fluid filtration devices have limited filtration accuracy, resulting in a large amount of impurities remaining in the grinding fluid, which affects grinding efficiency and quality and increases the risk of workpiece scratches.
A multi-stage filtration system is adopted, including a settling tank, filter paper, and fine filter. Impurities are removed through three filtration processes: settling, filter paper filtration, and filter cartridge filtration.
It improves the cleanliness of the grinding slurry, prevents the workpiece from being scratched by impurities, and improves the grinding quality.
Smart Images
Figure CN224672287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding fluid filtration technology, and in particular to a grinding fluid filtration device and a grinding machine. Background Technology
[0002] In the current machining field, grinding technology occupies a crucial position. As the core equipment in this process, the grinding machine requires a large amount of grinding fluid to ensure cooling and lubrication. This process inevitably generates a large amount of suspended abrasive particles and debris from the processed material. These impurities mix into the recycled grinding fluid, creating waste liquid. However, frequent replacement of the grinding fluid is not only costly, but the discharge of waste liquid also pollutes the environment. Therefore, it is necessary to filter the grinding fluid containing impurities before recycling. However, existing grinding fluid filtration devices have limited filtration precision, and a significant amount of impurities remain in the filtered grinding fluid. These residual impurities not only reduce grinding efficiency and quality but also increase the risk of scratching the workpiece surface during grinding, thus adversely affecting the workpiece's appearance and performance. Utility Model Content
[0003] The main purpose of this invention is to provide a grinding fluid filtration device and a grinding machine, which aims to solve the problem that existing filtration devices have poor filtration effects on grinding fluid, resulting in a decrease in grinding quality.
[0004] To achieve the above objectives, this utility model proposes a grinding fluid filtration device, including a cabinet for containing grinding fluid and a conveyor belt disposed on the cabinet, and further including:
[0005] A settling box is located above the conveyor belt. The settling box includes a first inlet pipe and a baffle plate. The baffle plate is installed inside the settling box, and a through hole is opened at the bottom of the settling box.
[0006] A roll of paper is located at one end of the conveyor belt. Filter paper is placed inside the roll of paper. The filter paper is wound inside the roll of paper, and the end of the filter paper is located on the conveyor belt. The conveyor belt transports the filter paper to the bottom of the settling tank.
[0007] The fine filter is located on the side of the roll carton facing away from the settling tank. The fine filter includes a filter element and an outlet pipe. The filter element is installed inside the fine filter, and the outlet pipe is used to discharge the filtered grinding liquid out of the cabinet.
[0008] In some embodiments, the settling tank is further provided with a slag suction frame, which includes a second inlet pipe and a drum. The drum is provided with a magnetic component, and the slag suction frame is also provided with a motor connected to the drum. The motor is used to drive the drum to rotate, and the bottom of the slag suction frame is connected to the settling tank.
[0009] In some embodiments, the magnetic component is an electromagnet, and there is an electrical connection between the electromagnet and the motor. The slag suction frame also includes a slag scraper, which is disposed on the inner wall of the slag suction frame and contacts the surface of the drum.
[0010] In some embodiments, the roll box further includes a fixing rod located inside the roll box, and the filter paper is wound around the fixing rod.
[0011] In some embodiments, a liquid level sensor is also provided on the side of the roll carton facing the settling tank. The liquid level sensor is used to detect the liquid level of the filter paper located below the settling tank.
[0012] In some embodiments, the cabinet is also provided with a circulation pump connected to the fine filter. The circulation pump is in communication with the inside of the cabinet and is used to pump the grinding fluid inside the cabinet into the fine filter.
[0013] In some embodiments, the fine filter is also provided with a pressure sensor for detecting the pressure difference at the filter element.
[0014] In some embodiments, a cooler is also provided on the cabinet for cooling the grinding fluid inside the cabinet.
[0015] In some embodiments, a control box is provided on the outside of the cabinet, and a PLC controller is provided inside the control box.
[0016] This utility model also discloses a grinding machine, which includes the above-mentioned grinding fluid filtration device.
[0017] This invention discloses a grinding fluid filtration device and a grinding machine. First, a settling tank is installed within the grinding fluid device to allow impurities in the grinding fluid to undergo initial settling and filtration. Second, the grinding fluid undergoes a second filtration using filter paper to further remove tiny particles. Finally, the grinding fluid undergoes a third, deeper filtration using a filter element in a fine filter. This multi-stage filtration method improves the cleanliness of the grinding fluid. When the grinding fluid, after being filtered according to this application, is reused in the grinding machine, it can prevent secondary scratches on the workpiece due to residual impurities in the grinding fluid, thereby improving the grinding quality of the workpiece. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of one embodiment of the grinding fluid filtration device of this utility model;
[0019] Figure 2 This is a schematic diagram of one embodiment of the grinding fluid filtration device of this utility model;
[0020] Figure 3 This is a schematic diagram of one embodiment of the grinding fluid filtration device of this utility model;
[0021] Figure 4 This is a schematic diagram of one embodiment of the grinding fluid filtration device of this utility model.
[0022] Explanation of icon numbers:
[0023] Cabinet 100; Conveyor belt 110; Settling tank 120; First inlet pipe 121; Baffle plate 122; Through hole 123; Paper roll box 130; Filter paper 131; Liquid level sensor 132; Fine filter 140; Outlet pipe 141; Sludge suction frame 150; Second inlet pipe 151; Drum 152; Motor 153; Sludge scraper 154; Circulating pump 160; Cooler 170; Control box 180. Detailed Implementation
[0024] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0026] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.
[0027] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0028] This utility model proposes a grinding fluid filtration device, referring to... Figures 1 to 4In one embodiment, the grinding fluid filtration device includes a cabinet 100 for containing grinding fluid and a conveyor belt 110 disposed on the cabinet 100, and also includes:
[0029] Settling box 120 is located above conveyor belt 110. Settling box 120 includes first liquid inlet pipe 121 and baffle plate 122. Baffle plate 122 is installed inside settling box 120. A through hole 123 is opened at the bottom of settling box 120.
[0030] A roll paper box 130 is located at one end of the conveyor belt 110. Filter paper 131 is provided inside the roll paper box 130. The filter paper 131 is wound inside the roll paper box 130, and the end of the filter paper 131 is located on the conveyor belt 110. The conveyor belt 110 transports the filter paper to the bottom of the settling tank.
[0031] The fine filter 140 is located on the side of the roll box 130 facing away from the settling tank 120. The fine filter 140 includes a filter element and an outlet pipe 141. The filter element is installed inside the fine filter 140, and the outlet pipe 141 is used to discharge the filtered grinding liquid out of the cabinet 100.
[0032] In this embodiment, the main body of the grinding fluid filtration device is a cabinet 100, the internal space of which is used to contain the grinding fluid. A settling tank 120 is provided at the top of the cabinet 100, and multiple baffles 122 are vertically arranged inside the settling tank 120. The grinding fluid to be filtered enters the settling tank 120 through the first inlet pipe 121. It should be noted that the multiple baffles 122 form a path for the grinding fluid to pass through inside the settling tank 120, the first inlet pipe 121 is located at the starting point of this path, and a through hole 123 is provided at the bottom of the settling tank 120, located at the end point of this path. The polishing fluid will slow down its flow rate under the action of the baffle plate 122 and flow along the path formed by the baffle plate 122. During this process, the heavier impurities in the polishing fluid will gradually settle under the action of gravity and accumulate at the bottom of the settling tank 120. Finally, the polishing fluid after settling falls from the through hole 123 toward the cabinet 100, thus completing the first filtration of the polishing fluid.
[0033] An opening is provided at the top of the cabinet 100, and the settling tank 120 is located above this opening. A conveyor belt 110 is installed at the opening. The grinding fluid exits from the through hole 123 at the bottom of the settling tank 120, passes through the conveyor belt 110, and then enters the cabinet 100 through the opening. A paper roll box 130 is also provided at the top of the cabinet 100, located at one end of the conveyor belt 110. Filter paper 131 is placed inside the paper roll box 130. The filter paper 131 is wound into a cylindrical paper tube, with the first end of the filter paper 131 located inside the paper roll box 130 and the second end located on the conveyor belt 110. Since the conveyor belt 110 moves along the paper roll box 130 toward the settling tank 120, the second end of the filter paper 131 will move with the conveyor belt 110 to below the settling tank 120. During this movement, the wound filter paper 131 will be unwound and laid on the conveyor belt 110. The grinding fluid coming out of the bottom through hole 123 of the settling tank 120 will first pass through the filter paper 131 on the conveyor belt 110, and then undergo a second filtration at the filter paper 131 before entering the cabinet 100.
[0034] In addition, a fine filter 140 is installed on the top of the cabinet 100. The fine filter 140 is located on the side of the roll box 130 facing away from the settling tank 120. The grinding fluid inside the cabinet 100 is discharged from the cabinet 100 through the outlet pipe 141 of the fine filter 140 and the grinding fluid is filtered for the third time through the filter element inside the fine filter 140.
[0035] In summary, the grinding slurry filtration device and grinding machine proposed in this application firstly filter impurities in the grinding slurry by setting a settling tank 120 within the grinding slurry device; secondly, the grinding slurry undergoes a second filtration through filter paper 131 to further remove tiny particles; and finally, the grinding slurry undergoes a third deep filtration through the filter element in the fine filter 140. This multi-stage filtration method improves the cleanliness of the grinding slurry, preventing secondary scratches on the workpiece due to residual impurities in the grinding slurry, thereby improving the grinding quality of the workpiece.
[0036] In a preferred embodiment, a slag suction frame 150 is also provided on the settling tank 120. The slag suction frame 150 includes a second liquid inlet pipe 151 and a roller 152. A magnetic component is provided inside the roller 152, and a motor 153 connected to the roller 152 is also provided on the slag suction frame 150. The motor 153 is used to drive the roller 152 to rotate, and the bottom of the slag suction frame 150 is connected to the settling tank 120.
[0037] like Figure 1 and Figure 3As shown, in this embodiment, a slag suction frame 150 is also provided above the settling frame, and the bottom of the slag suction frame 150 is connected to the settling tank 120. A roller 152 and a motor 153 connected to the roller 152 are provided inside the slag suction frame 150. A magnetic component is also provided inside the roller 152. When the grinding fluid enters the slag suction frame 150 from the second inlet pipe 151, the motor 153 drives the roller 152 to rotate, so that the metal impurities in the grinding fluid are adsorbed onto the surface of the roller 152 under the action of the magnetic component. Then the grinding fluid enters the settling tank 120 for settling.
[0038] In practical applications, when the workpiece processed by the grinding machine is made of metal, the recovered grinding fluid will contain some metal impurities. Because these metal impurities are relatively hard, they may damage the filter paper 131 and filter element in subsequent filtration steps, affecting the filtration effect. Therefore, to address this, when the grinding machine processes metal workpieces, the recovered grinding fluid can be first fed into the slag suction frame 150 through the second inlet pipe 151 to effectively remove metal impurities before proceeding to the subsequent filtration process. Alternatively, if the workpiece processed by the grinding machine does not contain metal, to simplify the operation and improve efficiency, the recovered grinding fluid can be directly fed into the settling tank 120 through the first inlet pipe 121 for subsequent filtration, without needing to pass through the slag suction frame 150. This design ensures both filtration effectiveness and operational convenience and flexibility.
[0039] In some embodiments, the magnetic component is an electromagnet, and there is an electrical connection between the electromagnet and the motor 153. The slag suction frame 150 also includes a slag scraper 154, which is disposed on the inner wall of the slag suction frame 150 and contacts the surface of the roller 152.
[0040] like Figure 3 As shown, in a preferred embodiment, the magnetic component inside the drum 152 is an electromagnet, which works in conjunction with the motor 153 via an electrical connection. Specifically, the electromagnet is activated and generates magnetism only when the motor 153 is started and running. This design ensures that the drum 152 inside the slag suction frame 150 is only magnetic during operation, thus effectively adsorbing passing metal impurities. When the slag suction frame 150 completes its task and the motor 153 is turned off, the electromagnet loses its magnetism. At this time, the metal impurities that were originally adsorbed on the surface of the drum 152 will fall into the slag suction frame 150 due to the loss of magnetic support, making it easier for operators to collect and process these metal impurities.
[0041] In other embodiments, the magnetic component can also be a permanent magnet. A scraper 154 is also provided on the inner wall of the suction frame 150, and the scraper 154 contacts the surface of the roller 152. When the roller 152 starts to rotate under the drive of the motor 153, the scraper 154 can scrape off the metal impurities adsorbed on the surface of the roller 152. This design aims to prevent the roller 152 from affecting its adsorption effect due to excessive adsorption of metal impurities during long-term operation, thereby ensuring that the suction frame 150 can effectively filter out metal impurities from the grinding fluid.
[0042] In some embodiments, the roll box 130 further includes a fixing rod located inside the roll box, and the filter paper 131 is wound around the fixing rod.
[0043] In some embodiments, a liquid level sensor 132 is also provided on the side of the roll box 130 facing the settling tank 120. The liquid level sensor 132 is used to detect the liquid level of the filter paper 131 located below the settling tank 120.
[0044] like Figure 1 and Figure 4 As shown, in this embodiment, a fixed rod is provided inside the roll box 130, and the filter paper 131 is wound around the rotating rod to form a paper tube. A liquid level sensor 132 is also provided on the roll box 130, located on the side of the roll box 130 near the settling tank 120. In actual use, the operator pulls out the end of the filter paper 131 wound inside the roll box 130 and places it on the conveyor belt 110, which transports the filter paper 131 to the bottom of the settling tank 120. When the liquid level sensor 132 detects that the liquid level on the filter paper 131 below the settling tank 120 reaches a preset value, it indicates that a section of filter paper 131 below the settling tank 120 is blocked and needs to be replaced in time. At this time, the conveyor belt 110 starts, pulls out the filter paper 131 in the roll paper box 130, and moves the next section of filter paper 131 to the bottom of the settling tank 120 to continue the filtration task seamlessly, so that the grinding fluid filtration device proposed in this application can work continuously, improving reliability and stability.
[0045] In some embodiments, the cabinet 100 is also provided with a circulation pump 160 connected to the fine filter 140. The circulation pump 160 is in communication with the inside of the cabinet 100 and is used to pump the grinding fluid in the cabinet 100 into the fine filter 140.
[0046] In some embodiments, the fine filter 140 is also provided with a pressure sensor for detecting the pressure difference at the filter element.
[0047] like Figure 1As shown, in a preferred embodiment, a circulation pump 160 is also provided on the cabinet 100. The fine filter 140 is connected to the interior of the cabinet 100 through the circulation pump 160. Power provided by the circulation pump 160 sends the grinding fluid, which has undergone the first and second filtrations inside the cabinet 100, out through the outlet pipe 141 on the fine filter 140. During this process, the grinding fluid undergoes a third filtration through the filter element inside the fine filter 140. A pressure sensor is also provided on the fine filter 140. When the pressure sensor detects that the pressure difference at the filter element reaches a preset value, it indicates that the filter element is clogged and needs to be replaced promptly.
[0048] In some embodiments, a cooler 170 is also provided on the cabinet 100, which is used to cool the grinding fluid inside the cabinet 100.
[0049] like Figure 1 As shown, in this embodiment, a cooler 170 is also provided on the cabinet 100, located on the side of the roll box 130 facing away from the settling tank 120. Specifically, during the operation of the grinding machine, the grinding fluid will heat up due to friction and energy conversion. To ensure the stability of the grinding fluid's performance, its temperature needs to be stably controlled below 25°C. The cooler 170 is designed to cool the grinding fluid inside the cabinet 100, ensuring that the temperature of the grinding fluid discharged from the outlet pipe 141 is below 25°C. This ensures that the filtered grinding fluid can be directly sent to the grinding machine for use, thereby guaranteeing the smooth progress of the grinding operation.
[0050] In some embodiments, a control box 180 is provided on the outside of the cabinet 100, and a PLC controller is provided inside the control box 180.
[0051] like Figure 1 As shown, a control box 180 is also provided on the outside of the cabinet 100. A PLC controller is installed inside the control box 180 to control the grinding fluid filtration device proposed in this application. For example, the PLC controller is used to control the opening and closing of the cooler 170 and the motor 153, and to receive signals from the pressure sensor. An HMI (Human-Machine Interface) connected to the PLC controller can also be installed on the control box 180, allowing operators to monitor the working status of the grinding fluid filtration device in real time and perform necessary operations and adjustments through various buttons, indicator lights, and displays on the HMI, thereby improving operational convenience.
[0052] The present invention further proposes a grinding machine including the above-mentioned grinding fluid filtration device. The specific structure of the grinding fluid filtration device is as described in the above embodiments. Since the present invention adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0053] In summary, the grinding slurry filtration device and grinding machine proposed in this application firstly filter impurities in the grinding slurry by setting a settling tank 120 within the grinding slurry device; secondly, the grinding slurry undergoes a second filtration through filter paper 131 to further remove tiny particles; and finally, the grinding slurry undergoes a third deep filtration through the filter element in the fine filter 140. This multi-stage filtration method improves the cleanliness of the grinding slurry. When the grinding slurry treated by this application is reused in the grinding machine, it can prevent the workpiece from suffering secondary scratches due to residual impurities in the grinding slurry, thereby improving the grinding quality of the workpiece.
[0054] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.
Claims
1. A grinding fluid filtration device, comprising a cabinet for containing grinding fluid and a conveyor belt disposed on the cabinet, characterized in that, It also includes those installed on the cabinet: A settling box is located above the conveyor belt. The settling box includes a first inlet pipe and a flow baffle plate. The flow baffle plate is disposed inside the settling box, and a through hole is provided at the bottom of the settling box. A roll of paper is located at one end of the conveyor belt. Filter paper is provided inside the roll of paper. The filter paper is wound inside the roll of paper, and the end of the filter paper is located on the conveyor belt. The conveyor belt transports the filter paper to the bottom of the settling tank. A fine filter is located on the side of the roll of paper away from the settling tank. The fine filter includes a filter element and a liquid outlet pipe. The filter element is disposed inside the fine filter, and the liquid outlet pipe is used to discharge the filtered grinding liquid out of the cabinet.
2. The grinding fluid filtration device according to claim 1, characterized in that, The settling tank is also equipped with a slag suction frame, which includes a second liquid inlet pipe and a roller. The roller is equipped with a magnetic component, and the slag suction frame is also equipped with a motor connected to the roller. The motor is used to drive the roller to rotate, and the bottom of the slag suction frame is connected to the settling tank.
3. The grinding fluid filtration device according to claim 2, characterized in that, The magnetic component is an electromagnet, and there is an electrical connection between the electromagnet and the motor. The slag suction frame also includes a slag scraper, which is disposed on the inner wall of the slag suction frame and contacts the surface of the roller.
4. The grinding fluid filtration device according to claim 1, characterized in that, The roll box also includes a fixing rod located inside the roll box, and the filter paper is wound around the fixing rod.
5. The grinding fluid filtration device according to claim 4, characterized in that, A liquid level sensor is also provided on the side of the roll of paper facing the settling tank. The liquid level sensor is used to detect the liquid level of the filter paper located below the settling tank.
6. The grinding fluid filtration device according to claim 1, characterized in that, The cabinet is also equipped with a circulation pump connected to the fine filter. The circulation pump is connected to the inside of the cabinet and is used to pump the grinding fluid inside the cabinet into the fine filter.
7. The grinding fluid filtration device according to claim 6, characterized in that, The fine filter is also equipped with a pressure sensor to detect the pressure difference at the filter element.
8. The grinding fluid filtration device according to claim 1, characterized in that, The cabinet is also equipped with a cooler, which is used to cool the grinding fluid inside the cabinet.
9. The grinding fluid filtration device according to claim 1, characterized in that, A control box is installed on the outside of the cabinet, and a PLC controller is installed inside the control box.
10. A grinding machine, characterized in that, Includes the grinding fluid filtration device according to any one of claims 1 to 9.