Double-cylinder switching type numerical control milling lathe wastewater depth filter

Abstract

The application relates to a double-cylinder switching type CNC milling lathe wastewater deep filter, which comprises a filter box, water inlet pipes and water outlet pipes connected to the two ends of the filter box and used for filtering wastewater, two groups of filter channels arranged in the filter box and connected with filter screens to facilitate filtering of the wastewater and cleaning of the filter channels, and a backwashing mechanism arranged in the filter box and used for backwashing the filter screens in the filter box with purified water to ensure the filtering effect, wherein the backwashing mechanism comprises an intercepting assembly, an extruding assembly and an exhaust assembly, so that the technical problem that, due to the need of a large amount of cooling water in the use process of the CNC milling lathe, the filtering work of the wastewater needs continuous and uninterrupted work to prevent the cooling water supply from being insufficient and the cutting from being stopped together and the filter screens from being blocked and the filtering effect from being gradually weakened is solved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology for CNC milling lathes, and more particularly to a dual-cylinder switching type depth filter for CNC milling lathe wastewater. Background Technology

[0002] When a CNC milling lathe is working, a high-speed rotating milling cutter cuts across the workpiece to create the required shape and features. Due to the rapid friction generated during cutting, a large amount of heat is produced. Therefore, a large amount of cooling water is needed to continuously rinse the workpiece and the milling cutter, quickly removing the heat and ensuring the safety of the machining process. Because the water consumption is very high, the cooling water mixed with waste chips needs to be collected, filtered, and recycled to prevent water waste. Furthermore, to prevent the presence of fine waste chips in the purified cooling water, the wastewater needs to be filtered multiple times to separate most of the chips. Finally, a deep filtration process is performed to remove the remaining fine chips, preventing them from affecting the cutting process and causing unnecessary wear on the workpiece under high-pressure spray.

[0003] However, in actual use, the inventors found that because CNC milling lathes require a large amount of cooling water during operation, the wastewater filtration work needs to be carried out continuously to prevent insufficient cooling water supply from causing the cutting to stop and the continuous operation from causing the filter screen to become clogged, thus gradually weakening the filtration effect. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by incorporating a backflushing mechanism. This backflushing mechanism includes an interception component, a compression component, and an exhaust component. After one side of the filter channel is closed by a diversion mechanism, the interception component blocks a portion of the purified water. Subsequently, the compression component forces this portion of purified water in the reverse direction, effectively discharging all the fine filter residue accumulated in the filter screen. Finally, the exhaust component completely discharges the wastewater from the corresponding filter channel, facilitating the disassembly and cleaning of the collection tank. This solves the technical problem that CNC milling lathes require a large amount of cooling water during operation, necessitating continuous and uninterrupted wastewater filtration to prevent insufficient cooling water supply requiring a stoppage in cutting and continuous operation leading to filter screen blockage and a gradual weakening of the filtration effect.

[0005] To address the above technical problems, the following technical solution is adopted: A dual-cylinder switching CNC milling lathe wastewater depth filter, comprising:

[0006] A filter box, with an inlet pipe and an outlet pipe connected to its two ends respectively, is used to filter wastewater.

[0007] Two sets of filtration channels are installed inside the filter box and connected to filter screens to facilitate the filtration of wastewater and the cleaning of the filtration channels.

[0008] A backwashing mechanism is installed inside the filter box and is used to backwash the filter screen inside the filter box with purified water to ensure its filtration effect.

[0009] The backflushing mechanism includes an interception component disposed in the filter channel for retaining a portion of the purified water, a squeezing component disposed on the interception component for pushing the purified water in the reverse direction by flushing in gas, and an exhaust component disposed on the squeezing component for discharging the gas in the squeezing component and thereby emptying the corresponding filter channel.

[0010] A dual-cylinder switching CNC milling lathe wastewater depth filter further includes a diversion mechanism, which is installed inside the filter box and is used to guide the flow of wastewater to assist in the filtration process.

[0011] The diversion mechanism includes a servo motor connected to the filter box and a dial connected to the output end of the servo motor for controlling the opening and closing of the two sets of filter channels.

[0012] A dual-cylinder switching CNC milling lathe wastewater depth filter further includes a slag discharge mechanism, which is disposed on the filter channel and used to collect and store the filtered filter residue.

[0013] The slag discharge mechanism includes a cleaning component disposed within the filter channel for assisting in the cleaning of the filter screen, and a collection component connected below the filter channel for collecting and storing filter slag.

[0014] Preferably, the cleaning assembly includes a drive cylinder connected to the filter box, a crossbar connected to the output end of the drive cylinder, and two sets of cleaning brushes respectively connected to the filter channel and connected to the crossbar via a connecting rod.

[0015] Preferably, the collection assembly includes a connecting seat connected to the bottom of the filter channel, a collection bucket connected to the connecting seat, a first barrier plate and a second barrier plate connected to the connecting seat and arranged vertically, a first gear and a second gear respectively connected to one end of the first barrier plate and the second barrier plate, and a first rack connected to the crossbar and meshing with the first gear.

[0016] A dual-cylinder switching CNC milling lathe wastewater depth filter further includes a cleaning mechanism, which is disposed inside the filter channel and is used to clean the inner wall of the filter channel to prevent filter residue from adhering to the inner wall and accumulating.

[0017] The cleaning mechanism includes a scraping component disposed within the filter channel for scraping the inner wall of the filter channel, and a speed limiting component disposed on the scraping component for controlling the movement of the scraping component.

[0018] Preferably, the scraping assembly includes a first guide rail connected to the filter channel and a scraping frame connected to the first guide rail and in close contact with the inner wall of the filter channel.

[0019] The speed limiting component includes a mounting slot on the scraper, a slide rod connected to the mounting slot, a first push plate and a second push plate connected to both ends of the slide rod, a trapezoidal block connected to the slide rod, and an abutment block connected to the mounting slot via a telescopic component and increasing friction against the first guide rail by cooperating with the trapezoidal block.

[0020] Preferably, the interception assembly includes a baffle plate connected to the filter channel via a rotating shaft, elastic plates connected to both sides of the baffle plate, a follower gear connected to the top of the rotating shaft and meshing with each other, and a belt drive connected to the output end of the servo motor and the rotating shaft.

[0021] Preferably, the extrusion assembly includes an extrusion plate connected to a baffle plate via a folded cover, a second guide rail connected to a filter channel and engaging with a groove on the extrusion plate to restrict the movement direction of the extrusion plate, an air supply channel opened on the baffle plate, a receiving pipe connected to the baffle plate and communicating with the air supply channel, an air inlet pipe connected to one end of the receiving pipe, two sets of round rods connected to the baffle plate via torsion springs, and an elastic rope connected to the round rods with its other end connected to the extrusion plate.

[0022] Preferably, the exhaust assembly includes a through hole in the extrusion plate, a sealing plate connected to the through hole and connected to the extrusion plate by a spring, a trigger block connected to the filter channel and cooperating with the trigger groove on the sealing plate to drive the sealing plate to open, and pressure relief pipes connected to the front end of the filter channel and the connecting seat respectively.

[0023] The beneficial effects of this invention are:

[0024] (1) In this invention, a backflushing mechanism is set up, which includes an interception component, a squeezing component and an exhaust component. After the filter channel on one side is closed by the diversion mechanism, a portion of the purified water is blocked by the interception component. Then, under the action of the squeezing component, this portion of purified water is squeezed in the reverse direction, thereby effectively discharging all the fine filter residue accumulated in the filter screen holes. Finally, under the action of the exhaust component, the wastewater in the corresponding filter channel is completely discharged, which facilitates the disassembly and cleaning of the collection tank.

[0025] (2) In this invention, by setting a diversion mechanism, the wastewater can be converted between the two filtration channels under the action of the diversion mechanism, thereby completing the discharge of waste residue and the self-cleaning of the filter screen under the premise of continuous operation, effectively improving the efficiency of filtration and extending the service life of the filter screen.

[0026] (3) In this invention, a cleaning mechanism is provided, which includes a scraping component disposed in the filter channel and used to scrape the inner wall of the filter channel, and a speed limiting component disposed on the scraping component and used to control the movement of the scraping component. The speed limiting component slowly drives the scraping component to move forward by using water flow impact during filtration, and scrapes the inner wall of the filter channel. After the corresponding filter channel is closed, it cooperates with the water flow power of the backwash mechanism and the release effect of the speed limiting component to make the scraping component quickly reset. During the reciprocating process, it protects the inner wall of the filter channel and prevents waste residue from adhering and accumulating.

[0027] (4) In this invention, a slag discharge mechanism is provided, which includes a collection component connected to the bottom of the filter channel for collecting and storing filter slag, and a cleaning component set in the filter channel for assisting in cleaning the filter screen. The cleaning component moves up and down to clean one side of the filter screen, which effectively reduces the situation where waste residue remains on the surface of the filter screen due to water pressure. At the same time, the collection mechanism is driven to work during the movement, collecting the sinking waste residue and intercepting it at the bottom of the collection bucket, preventing the water flow from washing it up again and reducing the collection effect.

[0028] In summary, this equipment has the advantages of good filtration effect, long service life and convenient waste discharge, and is especially suitable for the field of wastewater treatment technology for CNC milling lathes. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention.

[0032] Figure 3 This is a schematic diagram of the filter channel.

[0033] Figure 4 This is a schematic diagram of the diversion mechanism.

[0034] Figure 5 This is a schematic diagram of the cleaning mechanism.

[0035] Figure 6 This is a schematic diagram of the speed limiting component.

[0036] Figure 7 This is a schematic diagram of the slag discharge mechanism.

[0037] Figure 8 A schematic diagram of the structure of the collection components.

[0038] Figure 9 This is a schematic diagram of the recoil mechanism.

[0039] Figure 10 This is a schematic diagram of the interception component.

[0040] Figure 11 This is a schematic diagram of the extrusion assembly.

[0041] Figure 12 This is a schematic diagram of the working state of the extrusion assembly.

[0042] Figure 13 This is a schematic diagram of the exhaust assembly.

[0043] Figure 14 This is a schematic diagram of the receiving tube.

[0044] Figure 15 This is a schematic diagram showing the flow direction of water and gas during the backflushing process. Detailed Implementation

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0046] Example 1

[0047] like Figures 1-3 As shown, a dual-cylinder switching CNC milling lathe wastewater depth filter includes:

[0048] A filter box 100, with an inlet pipe 200 and an outlet pipe 300 connected to its two ends respectively, is used to filter wastewater.

[0049] Two sets of filter channels 400 are provided. The filter channels 400 are located inside the filter box 100 and are connected to filter screens 500 to facilitate the filtration of wastewater and the cleaning of the filter channels 400.

[0050] Backwashing mechanism 1 is installed inside the filter box 100 and is used to backwash the filter screen 500 inside the filter box 100 with purified water to ensure its filtration effect.

[0051] The backflushing mechanism 1 includes an interception component 11 disposed in the filter channel 400 for retaining a portion of the purified water, a squeezing component 12 disposed on the interception component 11 for pushing the purified water in the reverse direction by injecting gas, and an exhaust component 13 disposed on the squeezing component 12 for discharging the gas in the squeezing component 12 and thereby emptying the corresponding filter channel 400.

[0052] In this embodiment, a backflushing mechanism 1 is provided, which includes an interception component 11, a compression component 12, and an exhaust component 13. The two sets of filter channels 400 are opened alternately by the diversion mechanism 2 to cooperate with the filter screen 500 for filtration. At the same time, the closed filter channel 400 cooperates with the backflushing mechanism 1 to complete the self-cleaning of the filter screen 500 during this period.

[0053] In detail, the pre-filtered wastewater is pumped out of the tank by the water pump and discharged after purification through the inlet pipe 200, filter box 100, and outlet pipe 300. During the process, at the closed position of the filter channel 400, the interception component 11 blocks a part of the purified water. Then, under the action of the squeezing component 12, this part of the purified water is squeezed in the opposite direction, thereby effectively discharging all the fine filter residue accumulated in the filter screen 500 holes. Finally, under the action of the exhaust component 13, the wastewater in the corresponding filter channel 400 is completely discharged, which facilitates the disassembly and cleaning of the collection tank 322.

[0054] like Figures 1-4 As shown, a dual-cylinder switching CNC milling lathe wastewater depth filter also includes a diversion mechanism 2, which is installed inside the filter box 100 and is used to guide the flow of wastewater to assist in the filtration process.

[0055] The diversion mechanism 2 includes a servo motor 21 connected to the filter box 100 and a dial 22 connected to the output end of the servo motor 21 for controlling the opening and closing of the two sets of filter channels 400.

[0056] In this embodiment, by setting a diversion mechanism 2, wastewater can be switched between two filtration channels 400 under the action of the diversion mechanism 2, thereby completing the discharge of waste residue and the self-cleaning of the filter screen 500 under the premise of continuous operation, effectively improving the efficiency of filtration and extending the service life of the filter screen 500.

[0057] In detail, when waste residue needs to be discharged on one side, the output end of the servo motor 21 rotates 90° to drive the dial plate 22 to close the corresponding filter channel 400, while the other side opens, and the wastewater changes its flow direction to continue the filtration work.

[0058] It should be noted that a sealing gasket is provided between the deflector plate 22 and the inner wall of the filter box 100 to enhance the sealing effect.

[0059] like Figures 1-3 and Figures 7-8 As shown, a dual-cylinder switching CNC milling lathe wastewater depth filter also includes a slag discharge mechanism 3, which is disposed on the filter channel 400 and is used to collect and store the filtered filter residue.

[0060] The slag discharge mechanism 3 includes a collection component 32 connected below the filter channel 400 for collecting and storing filter slag, and a cleaning component 31 disposed within the filter channel 400 for assisting in cleaning the filter screen 500.

[0061] In this embodiment, a slag discharge mechanism 3 is provided. The slag discharge mechanism 3 includes a collection component 32 connected below the filter channel 400 for collecting and storing filter slag, and a cleaning component 31 disposed in the filter channel 400 for assisting in cleaning the filter screen 500. The cleaning component 31 moves up and down to clean one side of the filter screen 500, which effectively reduces the situation where waste residue remains on the surface of the filter screen 500 due to water pressure. At the same time, during the movement, the collection mechanism is driven to work, collecting the sinking waste residue and intercepting it at the bottom of the collection bucket 322, preventing the water flow from washing it up again and reducing the collection effect.

[0062] In detail, during the filtration process, the cleaning component 31 cleans one side of the filter screen 500 by moving in the remaining way. Some waste residue that is fixed to the surface of the filter screen 500 by water pressure is pushed downward during cleaning and then falls under the action of gravity. When the cleaning component 31 moves up and down, it simultaneously drives the collecting component 32 to work, collect and store the falling waste residue, and prevent it from being rolled up again by the water flow, which would affect the filtration effect.

[0063] Furthermore, such as Figure 7 As shown, the cleaning assembly 31 includes a drive cylinder 311 connected to the filter box 100, a crossbar 312 connected to the output end of the drive cylinder 311, and two sets of cleaning brushes 314 respectively connected to the filter channel 400 and connected to the crossbar 312 via a connecting rod 313.

[0064] In this embodiment, the crossbar 312 simultaneously drives the cleaning brushes 314 on both sides to work together, and also drives the collection component 32 to work, thus saving power resources.

[0065] In detail, during the filtration process, the drive cylinder 311 intermittently drives the crossbar 312 to move up and down, and the crossbar 312 drives the connecting rod 313 and the cleaning brush 314 to move, cleaning one side of the filter screen 500.

[0066] It should be noted that the cleaning brush 314 can only remove some surface debris, which will fall down due to its own weight. However, some small debris gets stuck in the filter holes of the filter screen 500 and cannot be discharged, thus requiring subsequent backflushing mechanism 1 to clean it.

[0067] Furthermore, such as Figures 7-8 As shown, the collection assembly 32 includes a connecting seat 321 connected to the bottom of the filter channel 400, a collection bucket 322 connected to the connecting seat 321, a first barrier plate 323 and a second barrier plate 324 connected to the connecting seat 321 and arranged vertically, a first gear 325 and a second gear 326 respectively connected to one end of the first barrier plate 323 and the second barrier plate 324, and a first rack 327 connected to the crossbar 312 and meshing with the first gear 325.

[0068] In this embodiment, by setting a first baffle plate 323 and a second baffle plate 324, the two open and close alternately so that the filter residue is transported layer by layer to the bottom of the collection bucket 322 after falling, no longer affected by the water flow, and is easy to collect and discharge.

[0069] In detail, as the cleaning assembly 31 moves downward, the horizontal plate drives the first rack 327 to move downward and drive the first gear 325 to rotate. The first gear 325 then drives the second gear 326, which meshes with it, to rotate. After moving to the bottom, the first gear 325 drives the first baffle plate 323 to complete a 90° rotation and be in a vertically open state. The second gear 326 then drives the second baffle plate 324 to rotate 90° and be in a horizontally closed state. The waste gradually falls under its own gravity, passes through the first baffle plate 323, and stays on the top of the second baffle plate 324. When the cleaning assembly 31 is reset, the first baffle plate 323 closes to isolate the water flow, and the second baffle plate 324 opens, allowing the waste to come to the bottom of the collection bucket 322. In the subsequent changes, the waste at the bottom is no longer affected by the water flow and can be collected stably.

[0070] It should be noted that some automatically sinking waste residue will first stay on the top of the first baffle plate 323, and will continue to fall when the first baffle plate 323 changes from horizontal to vertical. The first baffle plate 323 acts on the connecting seat 321, while the second baffle plate 324 acts on the top of the collection bucket 322.

[0071] like Figures 3-6 As shown, a dual-cylinder switching CNC milling lathe wastewater depth filter also includes a cleaning mechanism 4. The cleaning mechanism 4 is disposed inside the filter channel 400 and is used to clean the inner wall of the filter channel 400 to prevent filter residue from adhering to the inner wall and accumulating.

[0072] The cleaning mechanism 4 includes a scraping component 41 disposed within the filter channel 400 for scraping the inner wall of the filter channel 400, and a speed limiting component 42 disposed on the scraping component 41 for controlling the movement of the scraping component 41.

[0073] In this embodiment, by setting up the cleaning mechanism 4, it is ensured that there will be no accumulation of waste residue on the inner wall of the filter channel 400. Since a lot of waste residue accumulates in the filter channel 400, some waste residue cannot fall and be collected smoothly under the action of water flow. At the same time, it adheres to the inner wall of the filter channel 400 due to friction and adhesion. Long-term accumulation makes the filter channel 400 narrow, which is not conducive to improving filtration efficiency and is relatively inconvenient to clean.

[0074] In detail, the speed limiting component 42 slowly drives the scraping component 41 forward by using water flow impact during filtration to scrape the inner wall of the filter channel 400. After the corresponding filter channel 400 is closed, in conjunction with the water flow power of the backwash mechanism 1 and the release action of the speed limiting component 42, the scraping component 41 is quickly reset. During the reciprocating process, it protects the inner wall of the filter channel 400 and prevents waste residue from adhering and accumulating.

[0075] Furthermore, such as Figures 5-6 As shown, the scraping assembly 41 includes a first guide rail 411 connected to the filter channel 400 and a scraping frame 412 connected to the first guide rail 411 and in close contact with the inner wall of the filter channel 400.

[0076] The speed limiting component 42 includes a mounting groove 421 formed on the scraper 412, a slide rod 422 connected to the mounting groove 421, a first push plate 423 and a second push plate 424 respectively connected to both ends of the slide rod 422, a trapezoidal block 425 connected to the slide rod 422, and an abutment block 427 connected to the mounting groove 421 by a telescopic member 426 and increasing the friction against the first guide rail 411 by cooperating with the trapezoidal block 425.

[0077] In this embodiment, by setting the speed limiting component 42, the scraping frame 412 can move forward slowly during filtration, scraping the inner wall of the entire filter channel 400 bit by bit. At the same time, it can quickly reset in conjunction with the backwash mechanism 1 when closing, which increases the coordination between the various components and helps to improve work efficiency.

[0078] In detail, when the corresponding filter channel 400 is opened, water flows in rapidly and impacts the scraper 412 and the first push plate 423. The first push plate 423 is pushed, causing the slide rod 422 and the second push plate 424 to move. At this time, the first push plate 423 is in contact with the scraper 412, while the second push plate 424 moves away from the scraper 412. Simultaneously, the slide rod 422 causes the trapezoidal block 425 to press against one side of the contact block 427, ultimately causing the telescopic member 426 to be stretched. The end of the contact block 427 then contacts the first push plate 424. When the guide rail 411 contacts, the pressure generated increases friction, causing the scraper 412 to immediately reduce its speed when it starts to move again, and stop when it slowly moves to the end. After the corresponding filter channel 400 is closed, the backwash mechanism 1 works by using the reverse flow of water to move the first push plate 423 away from the scraper 412, while the second push plate 424 is in contact with the scraper 412, eliminating the squeezing between the contact block 427 and the first guide rail 411. Under the action of the water flow, the scraper 412 quickly resets.

[0079] It should be noted that the time it takes for the scraper 412 to reach the end is basically the same as the time it takes for the channel to be replaced.

[0080] Furthermore, such as Figures 9-12 As shown, the interception component 11 includes a baffle plate 112 connected to the filter channel 400 via a rotating shaft 111, elastic plates 113 connected to both sides of the baffle plate 112, a follower gear 114 connected to the top of the rotating shaft 111 and meshing with each other, and a belt drive component 115 connected to the output end of the servo motor 21 and the rotating shaft 111.

[0081] It is worth mentioning that the belt drive component 115 drives the interception component 11 to close simultaneously when the filter channel 400 on one side closes. The two are coordinated and consistent, which improves the working efficiency and helps to intercept enough purified water for the reverse cleaning of the filter screen 500.

[0082] In detail, when the drive motor rotates, it synchronously drives the interception component 11 on one side to work through the belt drive component 115. At this time, the corresponding rotating shaft 111 rotates, causing the obstruction plate 112 and the elastic plates 113 on both sides to rotate 90°, closing the tail of the corresponding filter channel 400. At the same time, the deflector plate 22 closes its end, thereby intercepting a certain amount of purified water. During the process, two meshing follower gears 114 drive another set of interception components 11 to open, and cooperate with the opened filter channel 400 to perform filtration.

[0083] It should be noted that the output of the drive motor is only connected to one side of the interception component 11, and the two sets of interception components 11 are in opposite states.

[0084] Furthermore, such as Figures 10-12 and Figure 14As shown, the extrusion assembly 12 includes an extrusion plate 122 connected to the baffle plate 112 via a folded cover 121, a second guide rail 124 connected to the filter channel 400 and cooperating with the groove 123 on the extrusion plate 122 to restrict the movement direction of the extrusion plate 122, an air supply channel 125 opened on the baffle plate 112, a receiving pipe 126 connected to the baffle plate 112 and communicating with the air supply channel 125, an air inlet pipe 127 connected to one end of the receiving pipe 126, two sets of round rods 129 connected to the baffle plate 112 via torsion springs 128, and an elastic rope 1210 connected to the round rods 129 and connected at the other end to the extrusion plate 122.

[0085] In this embodiment, by setting a round rod 129 connected to a torsion spring 128 and an elastic rope 1210 connected to the round rod 129 and the extrusion plate 122, the extrusion assembly 12 can quickly discharge the remaining gas in the folded cover 121 after the exhaust assembly 13 has finished extruding the purified water and completed the reset, while limiting the extrusion plate 122.

[0086] In detail, after the interception component 11 closes, when the cleaning component 31 moves down to open the first barrier plate 323 and close the second barrier plate 324, the gas quickly enters the interior of the folding cover 121 through the air inlet pipe 127, the receiving pipe 126, and the gas delivery channel 125. Then the folding cover 121 opens, and the squeezing plate 122 quickly pushes the purified water to move, so that the purified water flows in reverse through the filter screen 500 to wash the filter screen 500 in reverse and complete self-cleaning. At the same time, it drives the corresponding cleaning mechanism 4 to reset. During the process, the torsion spring 128 and the round rod 129 rotate to release the elastic rope 1210. Then the elastic rope 1210 extends itself and stretches as the squeezing plate 122 moves. After the exhaust component 13 completes its work, the gas stops filling, and the torsion spring 128 and the elastic rope 1210 together drive the squeezing plate 122 and the folding cover 121 to reset.

[0087] It should be noted that the intake pipe 127 and the receiving pipe 126 are both provided with misaligned openings. When the interception component 11 is closed, it drives the receiving pipe 126 to rotate 90°. At this time, the intake pipe 127 and the receiving pipe 126 are connected. Otherwise, they are in a disconnected state.

[0088] Example 2

[0089] like Figure 13 and Figure 15 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0090] Furthermore, such as Figure 13 and Figure 15As shown, the exhaust assembly 13 includes a through hole 130 on the extrusion plate 122, a sealing plate 132 connected to the through hole 130 and connected to the extrusion plate 122 by a spring 131, a trigger block 134 connected to the filter channel 400 and cooperating with the trigger groove 133 on the sealing plate 132 to drive the sealing plate 132 to open, and a pressure relief pipe 135 connected to the front end of the filter channel 400 and the connecting seat 321 respectively.

[0091] It is worth mentioning that the gas inside the folded cover 121 is discharged through the exhaust assembly 13, and then the wastewater in the closed filter channel 400 is completely emptied by the gas, which makes it easy to disassemble the collection bucket 322 and discharge and clean the waste residue.

[0092] In detail, as the extrusion plate 122 moves, the trigger groove 133 on one side of the sealing plate 132 contacts the trigger block 134 on the filter channel 400, causing the sealing plate 132 to move to one side. The through hole 130 on the extrusion plate 122 opens, and external gas continuously fills in and enters the filter channel 400. Due to the pressure, the pressure relief pipes 135 connected to the front end of the filter channel 400 and the connecting seat 321 respectively begin to open, and the wastewater is transported back to the tank for further filtration through the pressure relief pipes 135. After complete discharge, the gas filling stops, and the extrusion assembly 12 quickly resets. At this time, the waste residue can be cleaned by rotating the corresponding collection bucket 322 to remove it.

[0093] It should be noted that, due to the low position of the collection tank 322, even after the wastewater in the filter channel 400 and the connecting seat 321 is completely drained, there is still some wastewater inside. When the collection tank 322 is removed, this wastewater can be used to clean the waste residue inside the collection tank 322, saving resources. At the same time, because the second baffle plate 324 is provided with a protrusion, the water level inside the collection tank 322 will not reach the opening position after it is removed, making it easy to move and preventing spillage. Both sets of inlets of the pressure relief pipe 135 are equipped with one-way valves that automatically open and close when the pressure is reached.

[0094] Work process:

[0095] The pre-filtered wastewater is pumped from the tank by a water pump and enters the filter box 100 through the inlet pipe 200. Under the action of the diversion mechanism 2, it flows through one side of the filter channel 400 and is filtered by the corresponding filter screen 500. The purified water flows out through the outlet pipe 300, while the waste residue falls and is collected. During the process, the cleaning component 31 cleans one side of the filter screen 500 by moving vertically. Some waste residue fixed to the surface of the filter screen 500 by water pressure is pushed downwards during cleaning and then falls under gravity. The vertical movement of the cleaning component 31 simultaneously drives the collection component 32 to collect the falling waste residue. The collection tank 322 is designed to prevent the water from being swept up again by the water flow. The speed limiting component 42 slowly drives the scraping component 41 forward by using the water flow impact during filtration to scrape the inner wall of the filter channel 400. When the diversion component rotates, one side of the filter channel 400 closes and drives the corresponding interception component 11 to close, blocking a portion of the purified water. Then, under the action of the squeezing component 12, this portion of purified water is squeezed in the opposite direction, thereby effectively discharging all the fine filter residue accumulated in the filter screen 500 holes. Finally, under the action of the exhaust component 13, the wastewater in the corresponding filter channel 400 is completely discharged, making it convenient for the collection tank 322 to be disassembled and cleaned.

[0096] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0097] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0098] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A dual-cylinder switching type wastewater depth filter for CNC milling lathes, characterized in that, include: A filter box, with an inlet pipe and an outlet pipe connected to its two ends respectively, is used to filter wastewater. Two sets of filtration channels are installed inside the filter box and connected to filter screens to facilitate the filtration of wastewater and the cleaning of the filtration channels. A backwashing mechanism is installed inside the filter box and is used to backwash the filter screen inside the filter box with purified water to ensure its filtration effect. The backflushing mechanism includes an interception component disposed in the filter channel and used to retain a portion of the purified water, a squeezing component disposed on the interception component and used to push the purified water in the reverse direction by flushing in gas, and an exhaust component disposed on the squeezing component and used to discharge the gas in the squeezing component and thereby empty the corresponding filter channel. It also includes a cleaning mechanism, which is located inside the filter channel and is used to clean the inner wall of the filter channel to prevent filter residue from adhering to the inner wall and accumulating. The cleaning mechanism includes a scraping component disposed within the filter channel for scraping the inner wall of the filter channel, and a speed limiting component disposed on the scraping component for controlling the movement of the scraping component. The scraping assembly includes a first guide rail connected to the filter channel and a scraping frame connected to the first guide rail and in close contact with the inner wall of the filter channel. The speed limiting component includes a mounting slot on the scraper, a slide rod connected to the mounting slot, a first push plate and a second push plate connected to both ends of the slide rod, a trapezoidal block connected to the slide rod, and an abutment block connected to the mounting slot via a telescopic component and increasing friction against the first guide rail by cooperating with the trapezoidal block.

2. The dual-cylinder switching CNC milling lathe wastewater depth filter according to claim 1, characterized in that, It also includes a diversion mechanism, which is installed inside the filter box and is used to guide the flow of wastewater to assist in the filtration process; The diversion mechanism includes a servo motor connected to the filter box and a dial connected to the output end of the servo motor for controlling the opening and closing of the two sets of filter channels.

3. A dual-cylinder switching CNC milling lathe wastewater depth filter according to claim 2, characterized in that, It also includes a slag discharge mechanism, which is installed on the filter channel and is used to collect and store the filtered slag. The slag discharge mechanism includes a cleaning component disposed within the filter channel for assisting in the cleaning of the filter screen, and a collection component connected below the filter channel for collecting and storing filter slag.

4. A dual-cylinder switching CNC milling lathe wastewater depth filter according to claim 3, characterized in that, The cleaning assembly includes a drive cylinder connected to the filter box, a crossbar connected to the output end of the drive cylinder, and two sets of cleaning brushes respectively connected to the filter channel and connected to the crossbar via a connecting rod.

5. A dual-cylinder switching CNC milling lathe wastewater depth filter according to claim 4, characterized in that, The collection assembly includes a connecting seat connected to the bottom of the filter channel, a collection bucket connected to the connecting seat, a first barrier plate and a second barrier plate connected to the connecting seat and arranged vertically, a first gear and a second gear respectively connected to one end of the first barrier plate and the second barrier plate, and a first rack connected to the crossbar and meshing with the first gear.

6. A dual-cylinder switching CNC milling lathe wastewater depth filter according to claim 5, characterized in that, The interception assembly includes a baffle plate connected to the filter channel via a rotating shaft, elastic plates connected to both sides of the baffle plate, a follower gear connected to the top of the rotating shaft and meshing with each other, and a belt drive connected to the output end of the servo motor and the rotating shaft.

7. A dual-cylinder switching CNC milling lathe wastewater depth filter according to claim 6, characterized in that, The extrusion assembly includes an extrusion plate connected to a baffle plate via a folded cover, a second guide rail connected to a filter channel and engaging with a groove on the extrusion plate to restrict the movement direction of the extrusion plate, an air supply channel opened on the baffle plate, a receiving pipe connected to the baffle plate and communicating with the air supply channel, an air inlet pipe connected to one end of the receiving pipe, two sets of round rods connected to the baffle plate via torsion springs, and an elastic rope connected to the round rods with the other end connected to the extrusion plate.

8. A dual-cylinder switching CNC milling lathe wastewater depth filter according to claim 7, characterized in that, The exhaust assembly includes a through hole in the extrusion plate, a sealing plate connected to the through hole and connected to the extrusion plate by a spring, a trigger block connected to the filter channel and cooperating with the trigger groove on the sealing plate to open the sealing plate, and pressure relief pipes connected to the front end of the filter channel and the connecting seat respectively.

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