Centrifugal separation and purification device for recycling cutting fluid

The cutting fluid purification device, with its adjustable centrifugal orifice and sealing plate structure, solves the problem of unsatisfactory treatment of impurities of different sizes, achieving efficient purification and convenient operation.

CN224405372UActive Publication Date: 2026-06-26CHONGQING FAJIMA MECHANICAL & ELECTRICAL EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING FAJIMA MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-26

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Abstract

The utility model discloses a kind of cutting fluid recycling's centrifugal separation purification device, including body and centrifugal drum, the bearing disc is welded in the body inside position.This utility model is by adopting the plugging plate, in actual use process, personnel can according to the size of the impurity particle in the cutting fluid needed to be handled to the bolt on the surface of the plugging plate of corresponding position is disassembled, so that its corresponding diameter centrifugal hole of corresponding position is exposed, to satisfy the centrifugal purification processing of different effect, avoid pore size too small cause impurity plugging in centrifugal hole surface, lead to cutting fluid cannot smoothly centrifugal go out, and then affect the overall centrifugal separation purification effect and avoid pore size too large cause tiny impurity along with cutting fluid discharge, and then cause damage to subsequent equipment, by targeted pore size selection can effectively guarantee centrifugal quality, improve the practicality of device, with the advantages that centrifugal effect is adjustable, practicality is strong.
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Description

Technical Field

[0001] This utility model relates to the field of machining technology, and more specifically, to a centrifugal separation and purification device for recycling cutting fluid. Background Technology

[0002] In machining, a large amount of cutting fluid is used. During the operation of machine tools, a large amount of guide rail oil, spindle oil, hydraulic oil, as well as various impurities such as aluminum chips and dust are mixed into the cutting fluid. In order to save costs, the cutting fluid is recycled after purification. The purification process removes solid particles, dirty oil, bacteria, etc., so that the cutting fluid can maintain a good effect when recycled.

[0003] The existing publicly available technology, application number CN201822154561.3, discloses a cutting fluid purification device. This device includes a Y-type filter, a stainless steel bag filter, a pneumatic diaphragm pump, and a high-speed disc centrifuge, all mounted on a mobile trolley. The cutting fluid to be purified flows through the inlet of the Y-type filter and the pneumatic diaphragm pump, which are connected together. The fluid then flows through the pneumatic diaphragm pump, the stainless steel bag filter, and the high-speed disc centrifuge, ultimately converging into a clean liquid tank. The device also includes a PLC controller connected to a control panel, which provides multiple digital input / output interfaces. This invention has a simple structure and is easy to operate, effectively removing oil, particulate impurities, and bacteria from metal cutting fluids.

[0004] However, the aforementioned patents still have certain drawbacks in use: the fixed aperture of the traditional drum surface can only process impurities of a specified size, which is not very practical. Different drums need to be frequently replaced for impurities of different sizes (for example, if the impurity particles are large, the small aperture can easily cause blockage of the holes, thus affecting the centrifugation effect; if the impurity particles are small, the large aperture can easily cause the particles to penetrate, causing the fine impurities to re-enter the circulation system, resulting in a decrease in the quality of the processed surface or wear and tear on the equipment, and the processing effect is not ideal). Moreover, after the centrifugation process is completed, cutting fluid is easily adhered to the inner wall of the equipment and impurities are easily left in the drum, which is time-consuming and laborious to deal with, and the overall use effect is not ideal.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a centrifugal separation and purification device for recycling cutting fluid, which has the advantages of adjustable centrifugal effect, convenient material processing, and strong practicality, thereby solving the problems mentioned in the background technology.

[0007] To achieve the advantages of adjustable centrifugation effect, convenient material handling, and strong practicality, the specific technical solution adopted by this utility model is as follows:

[0008] A centrifugal separation and purification device for recycling cutting fluid includes a body and a centrifugal drum. A support plate is welded inside the body, and a centrifugal drum is installed at the top center of the support plate. One end of the centrifugal drum passes through one side of the support plate and is connected to the output end of a centrifugal motor. Several sets of centrifugal holes are opened around the surface of the centrifugal drum, and the size of the centrifugal holes gradually decreases. A sealing rod is inserted into the centrifugal hole, and a sealing plate is welded to one end of the sealing rod. The sealing plate is fastened to the outer surface of the centrifugal drum by bolts.

[0009] Furthermore, several sets of drive rods and guide rods are symmetrically slidably connected at the top of the machine body. A cylinder is installed at the top of one side surface of each drive rod, and a limit plate is installed at the top of each guide rod. The drive rods and guide rods are connected to a moving ring and a sealing disc respectively between each other. The sealing disc is located at the bottom of the centrifugal drum, and the moving ring is in contact with the inner wall of the machine body.

[0010] Furthermore, the sealing disc is a conical structure, and a groove is provided inward at the bottom of the conical structure. Several sets of bearing balls are rotatably connected inside the groove, and the bearing balls are in contact with the inner surface of the centrifugal drum.

[0011] Furthermore, an opening is provided in the middle of the surface of the moving ring, and the size of the opening is larger than the diameter of the centrifugal drum. A scraper is installed around the outer surface of the moving ring, and the scraper is in contact with the inner wall of the machine.

[0012] Furthermore, a drain port is provided around the outer side of the top of the support plate.

[0013] Furthermore, a drain hopper is installed at the bottom of the drain port.

[0014] Furthermore, a feed inlet is installed at the middle position of the top of the machine body.

[0015] Furthermore, the diameter of the sealing rod corresponds one-to-one with the diameter of the centrifuge hole.

[0016] Compared with the prior art, this utility model provides a centrifugal separation and purification device for cutting fluid recycling, which has the following beneficial effects:

[0017] (1) By adopting a sealing plate, in actual use, the personnel can disassemble the bolts on the surface of the sealing plate at the corresponding position according to the size of the impurity particles in the cutting fluid to be treated, so that the centrifuge hole of the corresponding diameter at the corresponding position is exposed, thereby satisfying the centrifugal purification treatment with different effects. This avoids the impurities from being blocked on the surface of the centrifuge hole due to the hole diameter being too small, which would prevent the cutting fluid from being centrifuged out smoothly and thus affect the overall centrifugal separation and purification effect. It also avoids the fine impurities from being discharged with the cutting fluid due to the hole diameter being too large, which would damage the subsequent equipment. By selecting the hole diameter in a targeted manner, the centrifugal quality can be effectively guaranteed and the practicality of the device can be improved. It has the advantages of adjustable centrifugal effect and strong practicality.

[0018] (2) This utility model uses a cylinder, a drive rod, a moving ring, a scraper, and a sealing disc. When the cutting fluid is discharged, the operation of the cylinder can drive the drive rod to move the moving ring back and forth, so that the scraper on the surface of the moving ring can scrape the inner wall of the machine back and forth, thereby removing the cutting fluid splashed onto the inner wall of the machine and improving the overall recycling quality. After centrifugation, solid impurities can be retained inside the centrifugal drum. At this time, the operation of the cylinder at the corresponding position can drive the drive rod to move upward. At this time, the drive rod can drive the sealing disc to move upward along the inner wall of the centrifugal drum. Since the surface of the sealing disc is a conical structure, it can scrape the impurities on the inner wall, so that the impurities can fall into the surface of the sealing disc. As the sealing disc moves upward, it will eventually move to the top of the centrifugal drum, where personnel can quickly collect and remove it, avoiding the need for personnel to enter the centrifugal drum for processing, reducing the labor intensity of personnel, improving the convenience of material processing, and having the advantage of convenient material processing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a centrifugal separation and purification device for the recycling of cutting fluid proposed in this utility model;

[0021] Figure 2 This is an unfolded view of the centrifugal drum of this utility model;

[0022] Figure 3 This is a schematic diagram of the sealing plate of this utility model;

[0023] Figure 4This is a schematic diagram of the sealing disc of this utility model.

[0024] In the picture:

[0025] 1. Machine body; 2. Centrifugal drum; 3. Sealing plate; 4. Sealing rod; 5. Centrifugal orifice; 6. Moving ring; 7. Cylinder; 8. Drive rod; 9. Feed inlet; 10. Guide rod; 11. Limiting plate; 12. Scraper; 13. Sealing disc; 14. Bearing ball; 15. Drain port; 16. Drain hopper; 17. Centrifugal motor; 18. Support plate. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, a centrifugal separation and purification device for recycling cutting fluid is provided.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a centrifugal separation and purification device for recycling cutting fluid according to an embodiment of the present invention includes a body 1 and a centrifugal drum 2. A support plate 18 is welded inside the body 1, and the centrifugal drum 2 is installed at the top center of the support plate 18. One end of the centrifugal drum 2 passes through one side of the support plate 18 and is connected to the output end of a centrifugal motor 17. Several sets of centrifugal holes 5 are arranged around the surface of the centrifugal drum 2, and the size of the centrifugal holes 5 gradually decreases. A sealing rod 4 is inserted into the centrifugal hole 5, and a sealing plate 3 is welded to one end of the sealing rod 4. The sealing plate 3 is fastened to the outer surface of the centrifugal drum 2 by bolts. The structure of the sealing plate 3 is adapted to the outer surface structure of the centrifugal drum 2, both being arc-shaped structures, which facilitates better fit and ensures that the sealing rod 4 can be smoothly inserted into the designated centrifugal hole 5. By adjusting the sealing plate 3, the centrifugal hole 5 of the appropriate size can be exposed, thereby better centrifuging and separating cutting fluid containing impurities of different sizes, ensuring the quality of processing. The installation trajectory of the sealing rod 4 corresponds to the opening trajectory of the centrifugal hole 5, ensuring that it can be smoothly inserted into the centrifugal hole 5. At the same time, threaded holes are opened at both ends of the centrifugal drum 2 to facilitate the fastening of the sealing plate 3.

[0029] In one embodiment, several sets of drive rods 8 and guide rods 10 are symmetrically slidably connected at the top of the body 1. A cylinder 7 is installed at the top of one side surface of each drive rod 8, and a limiting piece 11 is installed at the top of each guide rod 10. The drive rods 8 and guide rods 10 are connected to the moving ring 6 and the sealing disc 13 respectively between each other. The sealing disc 13 is located at the bottom of the centrifugal drum 2. The moving ring 6 is in contact with the inner wall of the body 1. The drive rods 8 are set to control the movement of the moving ring 6 and the sealing disc 13. The guide rods 10 are set to limit the movement of the above structure to ensure stable up and down movement and avoid tilting that would render the structure unusable. The limiting piece 11 is set to prevent the guide rods 10 from detaching from the moving slot and to ensure the quality of the structure.

[0030] In one embodiment, the sealing disc 13 is a conical structure with an inwardly recessed groove at the bottom. Several sets of bearing balls 14 are rotatably connected inside the groove. The bearing balls 14 fit against the inner surface of the centrifugal drum 2. The groove at the bottom of the sealing disc 13 is designed to facilitate the installation and use of the bearing balls 14. The bearing balls 14 can be silicon nitride ceramic balls. When the centrifugal drum 2 rotates at high speed, the sealing disc 13 can maintain structural stability through the rotation of the bearing balls 14, avoiding synchronous rotation and allowing the sealing disc 13 to be used more stably. The conical structure is designed to better guide the cutting fluid to the centrifugal hole 5, facilitating more thorough centrifugal separation and improving the overall processing quality.

[0031] In one embodiment, the moving ring 6 has an opening at the center of its surface, and the size of the opening is larger than the diameter of the centrifugal drum 2. A scraper 12 is mounted around the outer surface of the moving ring 6, and the scraper 12 is in contact with the inner wall of the machine body 1. The opening on the surface of the moving ring 6 is designed to ensure that it can move smoothly without being interfered with by the centrifugal drum 2, thus ensuring the normal use of the structure. The scraper 12 is designed to scrape off the cutting fluid that splashes onto the inner wall of the machine body 1 during centrifugation, thereby reducing the residue of cutting fluid, improving the overall recycling quality, and facilitating better use.

[0032] In one embodiment, a drain port 15 is provided around the top outer side of the support plate 18. The drain port 15 is provided to discharge the cutting fluid separated by centrifugation, so that it can fall smoothly into the drain hopper 16, thereby realizing the centralized discharge operation and facilitating subsequent collection and use.

[0033] In one embodiment, a drain hopper 16 is installed at the bottom of the drain port 15. The drain hopper 16 is designed to discharge the separated cutting fluid in a timely manner, thereby facilitating subsequent collection and recycling.

[0034] In one embodiment, a feed inlet 9 is installed at the top center of the machine body 1. The feed inlet 9 is provided to facilitate the addition of cutting fluid to be processed, thereby facilitating subsequent centrifugal separation.

[0035] In one embodiment, the diameter of the sealing rod 4 corresponds one-to-one with the diameter of the centrifuge hole 5. The correspondence between the sealing rod 4 and the centrifuge hole 5 is to ensure that the sealing rod 4 can be smoothly inserted into the centrifuge hole 5 to block the unused centrifuge hole 5, thereby preventing impurities in the cutting fluid from being discharged or blocked through the centrifuge hole 5 whose diameter does not meet the requirements, thus limiting the separation efficiency and separation quality, and ensuring the overall quality of the device.

[0036] Working Principle: In actual use, personnel can remove the bolts on the surface of the sealing plate 3 according to the size of the impurity particles inside the cutting fluid to be treated, exposing the centrifuge holes 5 of the corresponding diameter. This allows for centrifugal purification treatment with different effects, avoiding the situation where the hole diameter is too small, causing impurities to block the surface of the centrifuge hole 5, preventing the cutting fluid from being centrifuged smoothly and affecting the overall centrifugal separation and purification effect. Conversely, avoiding the situation where the hole diameter is too large, causing fine impurities to be discharged with the cutting fluid, thus damaging subsequent equipment. Targeted hole diameter selection can effectively ensure centrifugation quality and improve the practicality of the device. After selection and debugging, the cutting fluid to be treated can be added through the feed inlet 9. The falling cutting fluid will fall into the centrifuge drum 2, and the operation of the centrifuge motor 17 at the bottom can drive the centrifuge drum 2 to perform high-speed centrifugation, thereby separating the impurities from the cutting fluid. The cutting fluid can pass through the centrifuge hole 5 and fall into the drain hopper 16, thus realizing the discharge and circulation of the cutting fluid. During operation, when the cutting fluid is discharged, the cylinder 7 drives the drive rod 8 to reciprocate the moving ring 6, which in turn causes the scraper on the surface of the moving ring 6 to scrape the inner wall of the machine body 1 back and forth, thereby removing the cutting fluid splashed onto the inner wall of the machine body 1 and improving the overall recycling quality. After centrifugation, solid impurities can be retained inside the centrifugal drum 2. At this time, the operation of the cylinder 7 in the corresponding position drives the drive rod 8 to move upward. The drive rod 8 can then drive the sealing disc 13 to move upward along the inner wall of the centrifugal drum 2. Since the surface of the sealing disc 13 is conical, it can scrape the impurities on the inner wall, allowing the impurities to fall onto the surface of the sealing disc 13. As the sealing disc 13 continues to move upward, it will eventually reach the top of the centrifugal drum 2, where personnel can quickly collect and remove it, avoiding the need for personnel to enter the centrifugal drum 2 for processing, reducing the labor intensity of personnel, and improving the convenience of material processing. The device as a whole has the advantages of adjustable centrifugation effect, convenient material processing, and strong practicality.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifugal separation and purification device for recycling cutting fluid, comprising a body (1) and a centrifugal drum (2), characterized in that, The machine body (1) has a bearing plate (18) welded inside. A centrifugal drum (2) is installed at the top center of the bearing plate (18). One end of the centrifugal drum (2) passes through the bearing plate (18) and is connected to the output end of the centrifugal motor (17). Several centrifugal holes (5) are opened around the surface of the centrifugal drum (2). The size of the centrifugal holes (5) gradually decreases. A sealing rod (4) is inserted into the centrifugal hole (5). A sealing plate (3) is welded to one end of the sealing rod (4). The sealing plate (3) is fastened to the outer surface of the centrifugal drum (2) by bolts.

2. The centrifugal separation and purification device for cutting fluid recycling according to claim 1, characterized in that, The top of the machine body (1) is symmetrically connected with several sets of drive rods (8) and guide rods (10). Each drive rod (8) has a cylinder (7) installed on the top of one side surface. The guide rod (10) has a limit plate (11) installed at the top. The drive rods (8) and guide rods (10) are connected to the moving ring (6) and the sealing plate (13) respectively. The sealing plate (13) is located at the bottom of the centrifugal drum (2). The moving ring (6) is in contact with the inner wall of the machine body (1).

3. The centrifugal separation and purification device for cutting fluid recycling according to claim 2, characterized in that, The sealing disc (13) is a cone-shaped structure, and a groove is provided at the bottom of the cone-shaped structure. Several sets of bearing balls (14) are rotatably connected inside the groove. The bearing balls (14) are in contact with the inner surface of the centrifugal drum (2).

4. The centrifugal separation and purification device for cutting fluid recycling according to claim 2, characterized in that, The moving ring (6) has an opening in the middle of its surface, and the opening size is larger than the diameter of the centrifugal drum (2). A scraper (12) is installed around the outer surface of the moving ring (6), and the scraper (12) is in contact with the inner wall of the machine body (1).

5. The centrifugal separation and purification device for cutting fluid recycling according to claim 1, characterized in that, The top outer side of the support plate (18) is provided with a drain port (15).

6. The centrifugal separation and purification device for cutting fluid recycling according to claim 5, characterized in that, A drain hopper (16) is installed at the bottom of the drain port (15).

7. The centrifugal separation and purification device for cutting fluid recycling according to claim 1, characterized in that, The feed inlet (9) is installed at the middle position of the top of the machine body (1).

8. The centrifugal separation and purification device for cutting fluid recycling according to claim 1, characterized in that, The diameter of the sealing rod (4) corresponds one-to-one with the diameter of the centrifugal hole (5).