Cutting fluid circulating filtering device

Abstract

The utility model discloses a cutting fluid circulating filtering device, and belongs to the technical field of cutting fluid filtering. The device mainly comprises a first filter box; the mounting frame is mounted on the first filter box, a bottom plate is mounted in the first filter box, and a second suction pump is mounted on the bottom plate; the liquid storage pipe is connected to the water outlet end of the second suction pump, the water inlet end of the second suction pump is connected with a pipeline, and the pipeline is communicated with the first filter box; the sprayers are mounted on the liquid storage pipe in a communicating manner and are obliquely mounted, a first filter screen is movably inserted into the mounting frame, the first filter screen is obliquely arranged, a guide plate is mounted in the first filter box, and a through groove is formed in the end, away from the first filter screen, of the guide plate. According to the cutting fluid circulating filtering device, by means of active operation of the second suction pump, a traditional natural overflow filtering mode is changed, the filtering and circulating speed of the cutting fluid is greatly increased, meanwhile, the filtering net is combined with the spraying design, the cutting fluid is filtered in a multi-layer mode, and the filtering precision is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cutting fluid filtration, in particular to a cutting fluid circulation filtration device. BACKGROUND

[0002] In the field of mechanical processing, cutting fluid is extremely common, which plays an indispensable role in improving processing precision, prolonging tool life, controlling processing temperature and the like. However, with the continuous advancement of the processing process, cutting fluid inevitably mixes with various impurities, which will have a negative impact on the performance of the cutting fluid, thereby reducing the processing quality and causing many problems.

[0003] For example, the patent with the publication number CN215388077U discloses a simple cutting fluid circulation filtration device, which comprises a first-stage filtration water tank, a second-stage filtration water tank, a third-stage storage water tank, an oil separator, a filtration fine mesh and a circulation water pump, so as to realize multi-stage filtration of the cutting fluid, improve the purity of the cutting fluid, increase the contact time of the cutting fluid with oxygen and avoid pollution of the environment caused by frequent replacement of the cutting fluid.

[0004] The above patent mainly relies on the natural overflow of the cutting fluid to realize the transfer between levels when filtering the cutting fluid. Although this method can realize the filtration of the cutting fluid to a certain extent, it has certain drawbacks. The natural overflow is extremely slow, and this problem may not be prominent in small-scale production. However, in large-scale production scenarios, the amount of cutting fluid increases, and a large amount of cutting fluid needs to be filtered and circulated within a certain period of time to meet the needs of the continuous operation of the production equipment. Therefore, it is necessary to provide a cutting fluid circulation filtration device to solve the above problems.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background technology of the concept of the present application, and therefore, it can contain information that does not constitute prior art. CONTENT OF THE UTILITY MODEL

[0006] Based on the above problems existing in the prior art, the present application solves the problem of relying on the natural overflow of the cutting fluid to realize the transfer between levels, and the problem of slow filtration effect.

[0007] The technical scheme adopted by the present application to solve its technical problems is: a cutting fluid circulating filtering device, comprising a first filtering box; a mounting frame mounted on the first filtering box, a bottom plate being mounted in the first filtering box, and a second suction pump being mounted on the bottom plate; a liquid storage pipe connected to a water outlet end of the second suction pump, a pipe being connected to a water inlet end of the second suction pump and being in communication with the first filtering box; a plurality of spray heads being communicatively mounted on the liquid storage pipe, the spray heads being obliquely mounted, a first filter screen being movably inserted into the mounting frame, the first filter screen being obliquely arranged, a guide plate being mounted in the first filtering box, and a through slot being mounted on the guide plate at a position away from the first filter screen.

[0008] Further, an oblique insertion slot adapted to the first filter screen is formed in the mounting frame, and a first handle is mounted on the first filter screen.

[0009] Further, a baffle is mounted on the mounting frame at a position close to an upper end.

[0010] Further, a first cover plate is hingedly connected to the first filtering box.

[0011] Further, a first collecting box is slidably inserted into a position close to a bottom of a side surface of the first filtering box.

[0012] Further, a secondary filtering assembly is connected to the side surface of the first filtering box, the secondary filtering assembly comprising a second filtering box mounted on the side surface of the first filtering box, two groups of support plates being mounted on the second filtering box, and a second cover plate being hingedly connected to one group of the support plates.

[0013] Further, a first polyester filter screen is slidably inserted into the side surface of the first filtering box, a second polyester filter screen being slidably inserted into a lower end position of the first polyester filter screen on the side surface of the first filtering box, two groups of support frames being mounted on inner walls of the first filtering box, and a second filtering unit being mounted on the second filtering box.

[0014] Further, a collecting assembly is mounted on a side surface of the second filtering box, the collecting assembly comprising a third collecting box mounted on the side surface of the second filtering box, a fixing frame mounted on the side surface of the third collecting box, a fourth suction pump mounted on the fixing frame, and a liquid inlet pipe in communication with the third collecting box at a water inlet end of the fourth suction pump.

[0015] The cutting fluid circulating filtering device provided by the present application has the following advantages: the second suction pump is actively operated to change the traditional natural overflow filtering mode, greatly improving the cutting fluid filtering and circulating speed; the filter screen is combined with the spray design to perform multi-level filtering on the cutting fluid, improving the filtering precision; the guide plate and the through slot are matched to effectively collect the filtering impurities, avoiding secondary turbidity and maintaining the cleanliness of the cutting fluid.

[0016] Besides the above-mentioned objects, features and advantages, the present application has other objects, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein by reference. The illustrations are shown schematically in the drawings and are used to explain the application, but are not intended to limit the application. In the drawings:

[0018] Figure 1 Fig. 1 is a schematic view of the overall structure of a cutting fluid circulating filter device according to the present application;

[0019] Figure 2 Fig. 2 is a schematic view of the partial structure of the cutting fluid circulating filter device according to the present application; Figure 1

[0020] Figure 3 Fig. 3 is a side view of the cutting fluid circulating filter device according to the present application; Figure 2

[0021] In the drawings, the reference numerals:

[0022] 1. primary filter assembly; 11, first filter tank; 12, mounting bracket; 13, first suction pump; 14, water inlet pipe; 15, water outlet pipe; 17, mounting frame; 18, guide plate; 19, through slot; 110, bottom plate; 111, second suction pump; 112, liquid storage pipe; 113, spray head; 114, baffle; 115, first filter screen; 117, first collection tank; 118, first cover plate; 2, secondary filter assembly; 21, second filter tank; 22, support plate; 23, second cover plate; 24, second filter unit; 25, first polyester filter screen; 26, second polyester filter screen; 27, second collection tank; 28, support frame; 3, collection assembly; 31, third collection tank; 32, fixing bracket; 33, fourth suction pump; 34, liquid inlet pipe; 35, liquid outlet pipe. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments and features of the present application can be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should fall within the scope of protection of the present application. ​​

[0025] As Figures 1-3 The application provides a cutting fluid circulating filtering device, which comprises a primary filtering assembly 1, the primary filtering assembly 1 comprises a first filtering box 11, a mounting rack 12 is fixedly installed on the side of the first filtering box 11, a first suction pump 13 is fixedly installed on the mounting rack 12, a water inlet pipe 14 is connected to the water inlet end of the first suction pump 13, the water inlet pipe 14 is used for sucking the used cutting fluid, a water outlet pipe 15 is connected to the water outlet end of the first suction pump 13, one end of the water outlet pipe 15 extends into the first filtering box 11 and is close to the bottom position in the first filtering box 11,

[0026] When working, the first suction pump 13 is started, the used cutting fluid is sucked in through the water inlet pipe 14, then the cutting fluid is transported into the first filtering box 11 through the water outlet pipe 15, and a first collecting box 117 is slidingly inserted at the position close to the bottom of the side of the first filtering box 11, the first collecting box 117 is used for collecting the precipitated cutting fluid,

[0027] and a first filtering unit is installed on the first filtering box 11, the first filtering unit comprises a mounting frame 17 which is embeddedly installed on the first filtering box 11, the mounting frame 17 is a through structure, a bottom plate 110 is fixedly installed at the position close to the upper end in the first filtering box 11, and a second suction pump 111 is fixedly installed on the bottom plate 110,

[0028] the water outlet end of the second suction pump 111 is connected with a liquid storage pipe 112, the liquid storage pipe 112 is in the interior of the first filtering box 11, and a pipeline (not marked in the figure) is connected to the water inlet end of the second suction pump 111, the pipeline is communicated with the first filtering box 11, so as to be suitable for sucking the precipitated cutting fluid,

[0029] a plurality of spray heads 113 are communicatedly installed on the liquid storage pipe 112, the spray heads 113 are obliquely installed, a first filter screen 115 is movably inserted on the mounting frame 17, the first filter screen 115 is obliquely arranged, a slanting insertion slot (not marked in the figure) which is matched with the first filter screen 115 is formed in the mounting frame 17, and a first handle (not marked in the figure) is fixedly installed on the first filter screen 115, the first handle is suitable for pulling out the first filter screen 115 from the slanting insertion slot,

[0030] the used cutting fluid is transported to the bottom of the first filtering box 11 through the water inlet pipe 14 and the water outlet pipe 15 under the action of the first suction pump 13, because the density of impurities contained in the cutting fluid is generally greater than that of the cutting fluid itself, the iron filings, oil sludge and other larger and heavier impurities begin to precipitate under the action of gravity,

[0031] The precipitated cutting fluid is located at a relatively upper position in the first filter box 11, and the second suction pump 111 sucks out the cutting fluid that has been preliminarily precipitated by means of a pipeline in communication with the first filter box 11. At this time, the second suction pump 111 plays a role in conveying and transferring the cutting fluid, and prepares for subsequent fine filtering. The cutting fluid sucked out by the second suction pump 111 is conveyed to a plurality of spray heads 113 through a liquid storage pipe 112. The spray heads 113 are installed obliquely, and spray the cutting fluid in a showering manner onto the first filter screen 115 that is arranged obliquely. The impurities remaining in the cutting fluid are intercepted in the process of flowing through the filter screen;

[0032] And a guide plate 18 is fixedly installed inside the first filter box 11. The guide plate 18 is arranged obliquely away from the first filter screen 115, and is adapted to guide the impurities to fall off, so that the impurities filtered by the first filter screen 115 can slide along the oblique direction of the guide plate 18, and a through slot 19 is fixedly installed at a position away from the first filter screen 115 on the guide plate 18. The through slot 19 is adapted to the impurities falling into the first filter box 11, and the size of the through slot 19 is small;

[0033] The first filter screen 115 intercepts the impurities in the cutting fluid when filtering the cutting fluid. Since the first filter screen 115 is arranged obliquely, the intercepted impurities will slide down along the surface of the filter screen under the action of gravity. At this time, the obliquely installed guide plate 18 just receives the impurities sliding off from the first filter screen 115. The guide plate 18 is obliquely arranged away from the first filter screen 115. This unique design makes the impurities continuously move away from the filter screen under the action of gravity and the guide plate 18, effectively avoiding the accumulation of impurities near the filter screen, and ensuring the stability of the filtering efficiency of the filter screen;

[0034] The impurities that slide off through the guide plate 18 fall into the bottom of the first filter box 11 through the through slot 19. The size of the through slot 19 is small, which can control the amount of impurities falling each time. When the impurities pass through the through slot 19 and enter the bottom of the box, the small flow and volume will not cause a large impact on the cutting fluid in the box, which effectively avoids the re-suspension of the impurities that have been precipitated in the bottom of the box, prevents the cutting fluid from becoming turbid again, and ensures that the cutting fluid in the first filter box 11 always maintains a high degree of cleanliness;

[0035] Meanwhile, a baffle 114 is fixedly installed on the mounting frame 17 near the upper end. The baffle 114 plays a role in preventing splashing when the cutting fluid is sprayed onto the first filter screen 115 through the spray head 113. A first cover plate 118 is hingedly connected to the first filter box 11. The first cover plate 118 is used to seal and store the cutting fluid stored in the first filter box 11, so as to reduce the evaporation of water in the cutting fluid and the loss of some volatile components;

[0036] And the side of the first filter box 11 is connected with a secondary filter assembly 2, the secondary filter assembly 2 includes a second filter box 21 fixedly installed on the side of the first filter box 11, and two groups of support plates 22 are fixedly installed on the second filter box 21, and a second cover plate 23 is hinged on a group of support plates 22, the second cover plate 23 is used for sealing dustproof to the cutting fluid falling into the second filter box 21, and a second collection box 27 is slidably inserted on the side of the second filter box 21, so that the cutting fluid flowing into the second filter box 21 continues to precipitate under the action of gravity, and the cutting fluid flowing into the second filter box 21 continues to precipitate under the action of gravity;

[0037] Meanwhile, a first polyester filter screen 25 is slidably inserted on the side of the first filter box 11, and the first polyester filter screen 25 is used for oil separation of the cutting fluid falling into the second filter box 21, and a second polyester filter screen 26 is slidably inserted on the lower end position of the first polyester filter screen 25 on the side of the first filter box 11, and the second polyester filter screen 26 is suitable for further oil separation of the cutting fluid, and two groups of support frames 28 are fixedly installed on the inner wall of the first filter box 11, and the two groups of support frames 28 are respectively used for supporting the first polyester filter screen 25 and the second polyester filter screen 26;

[0038] When the cutting fluid flows from the first filter box 11 to the second filter box 21, it will first flow through the first polyester filter screen 25 slidably inserted on the side of the first filter box 11. The polyester material has different affinity for oil and water, and the fiber structure and pore size of the first polyester filter screen 25 are specially designed to allow water to pass through smoothly while intercepting oil droplets in the cutting fluid. These oil droplets gradually accumulate on the surface of the filter screen, forming larger oil droplets that slide down the surface of the filter screen under the action of gravity, achieving preliminary oil separation. At the same time, the filter screen can also intercept part of the suspended solid impurities, improving the purity of the cutting fluid entering the next process;

[0039] The cutting fluid preliminarily separated by the first polyester filter screen 25 continues to flow downward to the second polyester filter screen 26 slidably inserted on the lower end position of the first polyester filter screen 25 on the side of the first filter box 11. Although the cutting fluid has been preliminarily separated, it may still contain a small amount of tiny oil droplets. The second polyester filter screen 26 has finer fibers and smaller pore size, and has stronger interception ability for residual tiny oil droplets. When the cutting fluid passes through the second polyester filter screen 26, the remaining oil droplets are further trapped, thereby achieving more thorough oil separation. In addition, this filter screen can also filter the fine solid impurities missed by the first polyester filter screen 25 again, ensuring that the cutting fluid flowing into the second filter box 21 reaches a higher purity standard;

[0040] The first polyester filter screen 25 and the second polyester filter screen 26 are installed in a sliding manner. After being used for a period of time, a large amount of oil droplets and impurities are attached to the surface of the filter screen, which causes the filtering effect to decrease. At this time, the operator can conveniently slide the filter screen out from the side of the first filter box 11 to clean or replace the filter screen, so as to ensure the continuous and stable oil liquid separation effect.

[0041] In order to further filter the cutting fluid after the preliminary filtering and oil liquid separation, as shown in the drawings, the second filter unit 24 is installed on the second filter box 21. The second filter unit 24 and the first filter unit are similar structures, and the second filter unit 24 is suitable for further filtering the cutting fluid. Figures 2-3

[0042] The collecting assembly 3 is installed on the side of the second filter box 21, and is used for collecting the cutting fluid filtered by the second filter unit 24. The collecting assembly 3 comprises a third collecting box 31 fixedly installed on the side of the second filter box 21, and a fixing frame 32 fixedly installed on the side of the third collecting box 31. A fourth suction pump 33 is fixedly installed on the fixing frame 32. The water inlet end of the fourth suction pump 33 is connected with the third collecting box 31 through a liquid inlet pipe 34, and the water outlet end of the fourth suction pump 33 is connected with the first filter box 11 through a liquid outlet pipe 35.

[0043] The cutting fluid after the preliminary filtering and oil liquid separation flows into the second filter box 21 from the first filter box 11. Since the second filter unit 24 and the first filter unit are similar structures, the second filter unit 24 adopts the similar filtering principle as the first filter unit. The cutting fluid is removed of the residual impurities again by the similar spray head 113 and filter screen filtering mode, so as to further improve the purity of the cutting fluid. For example, the cutting fluid is uniformly sprayed to the surface of the filter screen arranged in an inclined manner by the spray head 113. The impurities are intercepted by the filter screen, and the clean cutting fluid flows into the space below through the filter screen.

[0044] The cutting fluid filtered by the second filter unit 24 flows into the third collecting box 31. The water inlet end of the fourth suction pump 33 is connected with the third collecting box 31 through the liquid inlet pipe 34, so that the cutting fluid collected in the box can be pumped out. Then, the cutting fluid is pumped back to the first filter box 11 through the liquid outlet pipe 35. In this way, the cutting fluid reenters the circulating filtering process, and is repeatedly filtered and purified to meet the requirement of the continuous machining on the cleanliness of the cutting fluid.

[0045] ​In summary: when the first suction pump 13 starts, the water inlet pipe 14 quickly extracts the used cutting fluid, and directly delivers it to the bottom of the first filter box 11 through the water outlet pipe 15. Compared with natural overflow, this active suction method greatly improves the introduction speed of the cutting fluid. The cutting fluid entering the first filter box 11 quickly precipitates under the action of gravity due to the high density of impurities therein. The precipitated cutting fluid is partly collected in the first collection box 117 slidably inserted in the side of the first filter box 11 near the bottom, and the other part is sucked out by the second suction pump 111 through the pipeline communicating with the first filter box 11. This not only avoids the time loss of natural overflow, but also ensures that the precipitated cutting fluid can quickly enter the next filtering process.

[0046] The second suction pump 111 pumps the cutting fluid to the liquid storage pipe 112, and then sprays the cutting fluid to the first filter screen 115 arranged obliquely through the obliquely installed spray head 113. In this process, the residual impurities in the cutting fluid are intercepted. The guide plate 18 installed obliquely receives the impurities falling from the filter screen and guides them to fall through the through slot 19 to the bottom of the first filter box 11. The through slot 19 with a small size effectively prevents the impurities from impacting the cutting fluid, avoiding secondary turbidity. At the same time, the baffle 114 prevents the cutting fluid from splashing during the spraying process, ensuring the efficiency and stability of the filtering process. Compared with natural filtration, this fine filtering process greatly improves the filtering efficiency through the cooperation of multi-layer structure and mechanical power.

[0047] When the cutting fluid flows from the first filter box 11 to the second filter box 21, the first polyester filter screen 25 and the second polyester filter screen 26 perform oil-water separation. These two layers of filter screens, by virtue of the different affinity of polyester material to oil and water, as well as the special design of fiber structure and pore size, not only achieve efficient interception of oil droplets, but also filter suspended solid impurities. The slide-in design facilitates the cleaning and replacement of the filter screen, ensuring the sustained stability of the oil-water separation effect, and also avoiding the problem of low filtering efficiency caused by natural overflow.

[0048] After preliminary filtering and oil-water separation, the cutting fluid enters the second filter box 21, and the second filter unit 24 further removes residual impurities through similar spraying and filter screen filtering principles as the first filter unit. The filtered cutting fluid flows into the third collection box 31, and the fourth suction pump 33 pumps it back to the first filter box 11, realizing the circulation filtering of the cutting fluid. This circulation process greatly speeds up the circulation speed of the cutting fluid through mechanical pumping, and can handle a large amount of cutting fluid in a short time, meeting the demand for immediate supply of cutting fluid in large-scale production scenarios.

[0049] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cutting fluid circulation filtering device characterized by: Include: First filter box (11); The mounting frame (17) is mounted on the first filter box (11), the bottom plate (110) is mounted in the first filter box (11), and the second suction pump (111) is mounted on the bottom plate (110); The liquid storage pipe (112) is connected to the water outlet end of the second suction pump (111), the water inlet end of the second suction pump (111) is connected with a pipeline, and the pipeline is communicated with the first filter box (11); A plurality of spray heads (113) are communicated and mounted on the liquid storage pipe (112), the spray head (113) is inclined, the first filter screen (115) is movably inserted on the mounting frame (17), the first filter screen (115) is inclined, the guide plate (18) is mounted in the first filter box (11), and the through slot (19) is mounted on one end of the guide plate (18) away from the first filter screen (115).

2. A cutting fluid circulating filter apparatus according to claim 1, wherein: The mounting frame (17) is provided with an inclined slot matched with the first filter screen (115), and the first handle is mounted on the first filter screen (115).

3. A cutting fluid circulating filter apparatus according to claim 2, wherein: The mounting frame (17) is provided with a baffle (114) close to the upper end.

4. A cutting fluid circulating filter apparatus according to claim 3, wherein: The first filter box (11) is hinged with a first cover plate (118).

5. A cutting fluid circulating filter apparatus according to claim 4, wherein: The first filter box (11) is slidably inserted with a first collection box (117) close to the bottom of the side.

6. The cutting fluid circulating filter apparatus of claim 2, wherein: The side of the first filter box (11) is connected with a secondary filter assembly (2), the secondary filter assembly (2) comprises a second filter box (21) mounted on the side of the first filter box (11), two groups of support plates (22) are mounted on the second filter box (21), and a second cover plate (23) is hinged to one group of support plates (22).

7. A cutting fluid circulating filter apparatus according to claim 6, wherein: The side of the first filter box (11) is slidably inserted with a first polyester filter screen (25), and the side of the first filter box (11) is slidably inserted with a second polyester filter screen (26) at the lower end of the first polyester filter screen (25), two groups of support frames (28) are mounted on the inner wall of the first filter box (11), and a second filter unit (24) is mounted on the second filter box (21).

8. A cutting fluid circulating filter apparatus according to claim 6, wherein: The side of the second filter box (21) is provided with a collection assembly (3), the collection assembly (3) comprises a third collection box (31) mounted on the side of the second filter box (21), a fixing frame (32) is mounted on the side of the third collection box (31), a fourth suction pump (33) is mounted on the fixing frame (32), and the water inlet end of the fourth suction pump (33) is communicated with the third collection box (31) through a liquid inlet pipe (34).

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