Cutting fluid automatic proportioning device
By employing a flow guide and siphon principle design in the automatic cutting fluid mixing device, combined with float control and sealing joints, the problem of inconvenient cutting fluid mixing operation is solved, achieving reliability and safety in concentration adjustment. The device has a simple structure and wide applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-03
AI Technical Summary
The existing cutting fluid mixing process is inconvenient to operate and lacks simple and practical automated devices.
A valve seat comprising a first guide element and a second guide element was designed to mix the cutting fluid using the siphon principle, combined with a float to control the flow rate and a sealing joint to prevent pressure leakage, thereby achieving automatic adjustment of concentration and mixing.
It improves the reliability and accuracy of cutting fluid mixing ratio, is convenient and quick to operate, has a simple structure, a wide range of applications, and high safety in use.
Smart Images
Figure CN224071887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting fluid preparation technology, and in particular to an automatic cutting fluid mixing device. Background Technology
[0002] Cutting fluid is an industrial liquid used in metal cutting and grinding processes to cool and lubricate cutting tools and workpieces. It is a scientifically formulated blend of various high-performance additives, possessing excellent cooling, lubrication, rust prevention, degreasing and cleaning, corrosion protection, and easy dilution properties, making it an indispensable consumable in machine tool or machining processes.
[0003] The proportioning of cutting fluid is generally accomplished by adding a certain amount of diluent to a high-concentration cutting fluid and mixing it. The preparation of cutting fluid in the machining process is mostly done manually, which is inconvenient to operate. Moreover, the cutting fluid used in general machine tools does not require a very precise concentration. Therefore, a cutting fluid proportioning device with a simple structure and practical function is needed. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic cutting fluid proportioning device that is convenient and quick to operate, simple in structure, and practical in function.
[0005] The technical solution adopted by this utility model to solve its technical problem is an automatic cutting fluid mixing device, including a valve seat with a first guide and a second guide, a first regulating valve with an inlet pipe, a second regulating valve with a raw fluid suction pipe, and a cutting fluid outlet pipe. An axially penetrating cavity is formed on the valve seat. The first and second guides are laterally limited and installed within the cavity. An axially penetrating first channel is formed on the first guide, and an axially penetrating second channel is formed on the second guide. The second channel cooperates with the first channel. The first regulating valve is fixedly installed at the left opening of the cavity and cooperates with the first channel. A radially formed installation port is also formed on the valve seat, positioned directly below the first guide and connected to the second channel. The second regulating valve is fixedly installed at the installation port. The cutting fluid outlet pipe is fixedly installed at the right opening of the cavity and cooperates with the second channel.
[0006] In the above scheme, the water inlet pipe is connected to the tap water device via a hose, and the cutting fluid outlet pipe is connected to the collection device via a hose. During use, the first regulating valve is opened, and tap water from the tap water device, under a certain pressure, sequentially flows through the water inlet pipe, the first regulating valve, the first channel of the first guide element, the second channel of the second guide element, and then through the cutting fluid outlet pipe into the collection device. Initially, during the discharge process from the cutting fluid outlet pipe, air at the inlet of the second channel of the second guide element is drawn away, resulting in lower pressure near the aforementioned location in the installation cavity. The second regulating valve is then opened, and the original fluid suction pipe then flows through the siphon... Based on the principle of suction, the raw liquid in the raw liquid tank can be discharged through the installation port. The discharged raw liquid and tap water will mix at the second channel to form cutting fluid. The cutting fluid can then be discharged through the cutting fluid outlet pipe. The discharge rate of raw liquid can be adjusted by adjusting the second regulating valve, thereby adjusting the concentration of the mixed liquid and improving the reliability and accuracy of the liquid concentration. Furthermore, the structure of setting the first and second guide elements in the valve seat not only achieves effective proportioning but also facilitates the processing and molding of the valve seat, making the overall structure reasonable. Therefore, the proportioning device with the above structure has the advantages of convenient and quick operation, simple structure, and practical function.
[0007] Furthermore, it also includes a fixing base, on which a fixing member is installed, the fixing member fixing the fixing base to the original liquid suction tube, and the bottom of the fixing base also forms an installation ring wall, on which a first threaded connection structure is formed.
[0008] In the above scheme, when using it, first loosen the fastener, so that the fixing seat can move up and down on the original liquid pipette. Insert the original liquid pipette into the original liquid through the outlet of the original liquid tank, and rotate the fixing seat so that the first threaded connection structure on the mounting ring wall forms a fixed connection with the outlet of the original liquid tank. This forms a fixed connection between the device and the original liquid tank. Finally, the fixing seat and the original liquid pipette are fixed again by the fastener, making the overall use safer and more reasonable.
[0009] Furthermore, it also includes a float tube with a float ball, the float tube being threadedly installed at the bottom end of the original liquid suction tube, the bottom of the inner cavity of the float tube being provided with a first circumferential edge, the first circumferential edge forming the original liquid suction port, and the upper circumferential surface of the first circumferential edge being a downwardly inclined first conical surface, a limiting member being installed on the float tube, the limiting member limiting the float ball, and a plurality of limiting protrusions being provided at the bottom of the float tube.
[0010] In the above scheme, by setting a float tube with a float ball and controlling the opening degree of the second regulating valve, the floating degree of the float ball can be controlled, thereby achieving better control of the opening degree of the raw liquid suction port. Therefore, the flow rate of the raw liquid can be controlled more effectively and the use is more reasonable. The upper ring surface of the first ring edge is also set as the first conical surface, so that the float ball can better match the raw liquid suction port. The setting of the limiting component effectively prevents the float ball from moving too high, ensuring the safety of use. By setting a limiting protrusion at the bottom of the float tube, the phenomenon of strong adsorption with the bottom of the raw liquid tank is avoided.
[0011] Furthermore, the second regulating valve is connected to a first sealing joint and a second sealing joint, the other end of the first sealing joint being sealed to the original liquid suction tube, and the other end of the second sealing joint being sealed to the installation port.
[0012] In the above solution, by setting the first sealing joint and the second sealing joint, the sealing stability between the second regulating valve and the original liquid suction tube and the installation port is effectively guaranteed, effectively preventing the occurrence of pressure leakage and making it safer to use.
[0013] Furthermore, a third sealing joint is connected to the first regulating valve, and the other end of the third sealing joint is sealed to the left opening of the mounting cavity. A first sealing ring is also provided between the third sealing joint and the first regulating valve, and between the third sealing joint and the left opening of the mounting cavity.
[0014] In the above scheme, by setting a third sealing joint and a first sealing ring, the sealing stability between the first regulating valve and the left opening of the mounting cavity is effectively guaranteed, effectively preventing the occurrence of pressure leakage and making it safer to use.
[0015] Furthermore, the mounting cavity is composed of a left cavity, a middle cavity, and a right cavity connected in sequence. The inner diameters of the left cavity and the right cavity are both larger than the inner diameter of the middle cavity. The left end of the first guide member is provided with a second annular edge, which is positioned opposite the left cavity. The middle cavity is provided with a corresponding third annular edge, which is supported on the first guide member. The right end of the first guide member and the right end of the first channel are both funnel-shaped structures, with the tail of the funnel-shaped structure extending into the right cavity. The second guide member is installed at the root of the right cavity. The left end of the second guide member is provided with a clearance cavity, the inner diameter of which is the same as the inner diameter of the middle cavity, and the annular surface of the clearance cavity is a second conical surface inclined to the right.
[0016] In the above scheme, the inner diameter of the left cavity of the installation chamber is set to be larger than that of the middle cavity. A second annular edge is provided on the first guide member to facilitate effective confinement after installation. Similarly, the inner diameter of the right cavity of the installation chamber is set to be larger than that of the middle cavity to facilitate effective confinement after installation of the second guide member. This structure also facilitates processing. Furthermore, a third annular edge is provided within the middle cavity, preventing the first guide member from completely fitting into it, thus allowing for greater air entrainment. The right ends of both the first guide member and the first channel are funnel-shaped, increasing the pressure of tap water flowing into the second channel. The left end of the second guide member is designed as a relief cavity with the same inner diameter as the middle cavity, allowing the first guide member to approach it more appropriately. The annular surface of the relief cavity is a right-inclined second cone, which guides the discharge of the original liquid. This structural design makes the discharge and mixing of the original liquid more convenient, safer, and more efficient.
[0017] Furthermore, a rotating fan blade is also installed in the first channel.
[0018] In the above scheme, the design of the rotating fan blades causes the tap water to be discharged from the outlet of the first channel in a vortex manner, which greatly increases the flow rate, can better carry away air, and reduces the pressure in the middle cavity, thus facilitating the discharge of the original liquid.
[0019] Furthermore, the raw liquid straw is assembled from multiple pipes, and a first sealing ring is provided at the joint of the assembled raw liquid straw.
[0020] In the above scheme, the raw liquid suction tube adopts the method of assembling multiple pipes, which makes the device more convenient to adapt to raw liquid tanks of different specifications, and has a wider range of applications. The setting of the first sealing ring effectively prevents the occurrence of pressure leakage, making it safer to use. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 A partial structural cross-section of this utility model. Figure 1 ;
[0023] Figure 3 A partial structural cross-section of this utility model. Figure 2 ;
[0024] Figure 4 This is a cross-sectional view of the valve assembly structure of this utility model;
[0025] Figure 5 for Figure 3 An enlarged schematic diagram of the structure at point A.
[0026] In the diagram: 1-valve seat, 2-first guide element, 3-second guide element, 4-first regulating valve, 5-inlet pipe, 6-second regulating valve, 7-original liquid suction pipe, 8-cutting fluid outlet pipe, 9-installation cavity, 10-first channel, 11-second channel, 12-installation port, 13-fixed seat, 14-fixing element, 15-installation ring wall, 16-float tube, 17-float, 18-first ring edge, 19-original liquid suction port, 20-first conical surface, 21-limiting element, 22-limiting protrusion, 23-first sealing joint, 24-second sealing joint, 25-third sealing joint, 26-first sealing ring, 27-second ring edge, 28-third ring edge, 29-avoidance cavity, 30-second conical surface, 31-rotating fan blade, 32-pipe, 33-second sealing ring. Detailed Implementation
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model and / or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort. Furthermore, references to orientation only indicate the relative positional relationship between the components, not their absolute positional relationship.
[0028] Please see Figures 1 to 5 As shown, an automatic cutting fluid mixing device includes a valve seat 1 with a first guide member 2 and a second guide member 3, a first regulating valve 4 with a water inlet pipe 5, a second regulating valve 6 with a raw fluid suction pipe 7, and a cutting fluid outlet pipe 8. An axially penetrating cavity 9 is formed on the valve seat 1, and the cavity 9 is axially centered. The first guide member 2 and the second guide member 3 are laterally limited and installed within the cavity 9. An axially penetrating first channel 10 is formed on the first guide member 2, and an axially penetrating second channel 11 is formed on the second guide member 3. The second channel 11 cooperates with the first channel 10, and the first channel 10 and the second channel 11 are also axially centered. The throttle valve 4 is fixedly installed at the left opening of the mounting cavity 9. The first regulating valve 4 cooperates with the first channel 10. The first regulating valve 4 is a normally closed control valve. The valve seat 1 also has a radially formed mounting port 12. The mounting port 12 is positioned directly below the first guide member 2. More specifically, the outlet of the first channel 10 on the first guide member 2 is misaligned with the mounting port 12, and the mounting port 12 is connected to the second channel 11. The second regulating valve 6 is fixedly installed at the mounting port 12. The second regulating valve 6 is also a normally closed control valve. The cutting fluid outlet pipe 8 is fixedly installed at the right opening of the mounting cavity 9. The cutting fluid outlet pipe 8 cooperates with the second channel 11.
[0029] In the above structure, the water inlet pipe 5 is connected to the tap water device via a hose, and the cutting fluid outlet pipe 8 is connected to the collection device via a hose. During use, the first regulating valve 4 is opened, and tap water from the tap water device flows under certain pressure through the water inlet pipe 5, the first regulating valve 4, the first channel 10 of the first guide member 2, the second channel 11 of the second guide member 3, and then through the cutting fluid outlet pipe 8 into the collection device. Initially, during the discharge process from the cutting fluid outlet pipe 8, air at the inlet of the second channel 11 of the second guide member 3 is drawn away, resulting in lower pressure in the mounting cavity 9 near the aforementioned location. The second regulating valve 6 is then opened, and the original fluid suction pipe 7 then flows through… Utilizing the siphon principle, the raw liquid in the raw liquid tank can be discharged through the installation port 12. The discharged raw liquid and tap water will mix at the second channel 11 to form cutting fluid. The cutting fluid can then be discharged through the cutting fluid outlet pipe 8. By adjusting the second regulating valve 6, the discharge rate of the raw liquid can be adjusted, thereby adjusting the concentration of the mixed liquid and improving the reliability and accuracy of the liquid concentration. Furthermore, the structure of setting the first guide element 2 and the second guide element 3 in the valve seat 1 not only achieves effective proportioning but also facilitates the processing and molding of the valve seat 1, making the overall structure reasonable. Therefore, the proportioning device with the above structure has the advantages of convenient and quick operation, simple structure, and practical function.
[0030] In this embodiment, the automatic cutting fluid mixing device further includes a fixing seat 13, on which a fixing member 14 is installed. The fixing member 14 fixes the fixing seat 13 to the original fluid suction tube 7. More specifically, a first mounting hole is formed in the radial direction of the fixing seat 13. The first mounting hole can be a threaded hole, and one side of the first mounting hole communicates with the inner cavity of the fixing seat 13. The fixing member 14 can be a bolt. By tightening the fixing member 14, the fixing seat 13 can be fixed or loosened on the original fluid suction tube 7. At the same time, the head of the fixing member 14 is located outside the fixing seat 13 for easy operation. A mounting bracket is also formed at the bottom of the fixing seat 13. The mounting ring wall 15 has a first threaded connection structure, which can be an external thread. In use, the fixing part 14 is loosened first, so that the fixing seat 13 can move up and down on the original liquid suction tube 7. The original liquid suction tube 7 is inserted into the original liquid through the liquid outlet of the original liquid tank, and the fixing seat 13 is rotated so that the first threaded connection structure on the mounting ring wall 15 is fixedly connected to the liquid outlet (internal thread) of the original liquid tank. This fixes the device to the original liquid tank. Finally, the fixing part 14 is used to fix the fixing seat 13 and the original liquid suction tube 7 again, making the overall use safer and more reasonable.
[0031] In this embodiment, the automatic cutting fluid mixing device further includes a float tube 16 with a float ball 17. The float tube 16 is threadedly installed at the bottom end of the raw fluid suction tube 7. A first annular edge 18 is provided at the bottom of the inner cavity of the float tube 16. The first annular edge 18 surrounds and forms the raw fluid suction port 19, and the upper annular surface of the first annular edge 18 is set as a downwardly inclined first conical surface 20. By setting the float tube 16 with the float ball 17, the degree of vertical floating of the float ball 15 can be controlled by controlling the opening degree of the second regulating valve 6, thereby achieving better control of the opening degree of the raw fluid suction port 19. Therefore, the flow rate of the raw fluid can be controlled more effectively, and the use is more reasonable. The upper annular surface of the first annular edge 18 is also set as a first conical surface 20. 0, thus allowing the float 17 to better cooperate with the original liquid suction port 19. A limiting component 21 is also installed on the float tube 16, which limits the float 17. More specifically, a second mounting hole is formed on the upper side of the float 17 in the float tube 16. The second mounting hole is radially connected to the inner cavity of the float tube. The limiting component 21 is inserted into the second mounting hole to limit the upward movement of the float 17. The setting of the limiting component 21 effectively prevents the float 17 from moving too high, ensuring the safety of use. Multiple limiting protrusions 22 are also provided at the bottom of the float tube 16. By setting the limiting protrusions 22 at the bottom of the float tube 16, the phenomenon of strong adsorption with the bottom of the original liquid container is avoided.
[0032] In this embodiment, the second regulating valve 6 is connected to a first sealing joint 23 and a second sealing joint 24. The other end of the first sealing joint 23 is sealed to the original liquid suction tube 7, and the other end of the second sealing joint 24 is sealed to the installation port 12. By setting the first sealing joint 23 and the second sealing joint 24, the sealing stability between the second regulating valve 6 and the original liquid suction tube 7 and the installation port 12 is effectively guaranteed, effectively preventing the occurrence of pressure leakage and making it safer to use.
[0033] In this embodiment, a third sealing joint 25 is connected to the first regulating valve 4. The other end of the third sealing joint 25 is sealed to the left opening of the mounting cavity 9. A first sealing ring 26 is also provided between the third sealing joint 25 and the first regulating valve 4, and between the third sealing joint 25 and the left opening of the mounting cavity 9. By setting the third sealing joint 25 and the first sealing ring 26, the sealing stability between the first regulating valve 4 and the left opening of the mounting cavity 9 is effectively guaranteed, effectively preventing the occurrence of pressure leakage and making it safer to use. It should be noted that a first sealing ring 26 is also provided at the right opening of the cutting fluid outlet pipe 8 and the mounting cavity 9.
[0034] In this embodiment, the mounting cavity 9 is composed of a left cavity, a middle cavity, and a right cavity connected in sequence. The inner diameters of the left and right cavities are both larger than the inner diameter of the middle cavity. A second threaded connection structure is provided at corresponding positions in both the left and right cavities. The second threaded structure is an internal thread, thereby forming a fixed connection with the cutting fluid outlet pipe 8 and the third sealing joint 25. A second annular edge 27 is provided on the left end of the first guide member 2. The second annular edge 27 is positioned relative to the left cavity, and its diameter is larger than the inner diameter of the middle cavity. The first guide member 2 is positioned by the second annular edge 27, forming an installation limit. The second guide member 3 is installed at the root of the right cavity. During installation, the first guide member 2 is inserted from the left cavity side. When the second annular edge 27 forms a stop and limit, the first... After the guide component 2 is installed in place, the position of the first guide component 2 is fixed by tightening the third sealing joint 25. The second guide component 3 is then installed from the right cavity side. Since the inner diameter of the right cavity is larger than the inner diameter of the middle cavity, the second guide component 3 will form a stop and limit. The position of the second guide component 3 is then fixed by tightening the cutting fluid outlet pipe 8. Therefore, in the above structure, the inner diameter of the left cavity of the installation cavity 9 is set to be larger than the inner diameter of the middle cavity. The second circumferential edge 27 is provided on the first guide component 2, which facilitates the effective limitation after the first guide component 2 is installed. The inner diameter of the right cavity of the installation cavity 9 is set to be larger than the inner diameter of the middle cavity, which facilitates the effective limitation after the second guide component 3 is installed. The structural design is reasonable.
[0035] In this example, a corresponding third annular edge 28 is also provided in the middle cavity, and the third annular edge 28 is supported on the first guide member 2. Furthermore, by providing the third annular edge 28 in the middle cavity, the first guide member 2 is not completely fitted into the middle cavity, thus allowing for more air entrainment. The right end of both the first guide member 2 and the right end of the first channel 10 are funnel-shaped structures, with the tail of the funnel-shaped structure extending into the right cavity. The tail of the funnel-shaped structure will be tubular. The left end of the second guide member 3 is provided with a relief cavity 29, the inner diameter of which is consistent with the inner diameter of the middle cavity, and the annular surface of the relief cavity 29 is... The second conical surface 30 is inclined to the right, and the right end of the first guide 2 and the right end of the first channel 10 are both set as funnel-shaped structures, which can increase the pressure of tap water flowing into the second channel 11. By setting the left end of the second guide 3 as a relief cavity 29 with the same inner diameter as the central cavity, the setting of the relief cavity 29 allows the first guide 2 to be closer to the second guide 3 in a more reasonable way. The annular surface of the relief cavity 29 is set as a second conical surface 30 inclined to the right. The second conical surface 30 can guide the discharge of the original liquid. The above structure design makes the discharge and mixing of the original liquid more convenient, safer and more reasonable.
[0036] In this example, a rotating fan blade 31 is also installed in the first channel 10. The design of the rotating fan blade 31 makes the tap water vortex out of the outlet of the first channel 10, which greatly increases the flow rate, can better carry away air, and makes the pressure in the middle cavity lower, thus facilitating the discharge of the original liquid.
[0037] In this example, the raw liquid suction tube 7 is assembled from multiple pipes 32. The raw liquid suction tube 1 is provided with a second sealing ring 33 at the joint of the assembly. The raw liquid suction tube 7 adopts the method of assembling multiple pipes 32, which makes the device more convenient to adapt to raw liquid tanks of different specifications and has a wider range of applications. The setting of the second sealing ring 33 effectively prevents the occurrence of pressure leakage and makes it safer to use.
[0038] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. An automatic cutting fluid proportioning device, characterized in that: The device includes a valve seat (1) with a first guide (2) and a second guide (3), a first regulating valve (4) with a water inlet pipe (5), a second regulating valve (6) with a raw liquid suction pipe (7), and a cutting fluid outlet pipe (8). An axially extending cavity (9) is formed on the valve seat (1). The first guide (2) and the second guide (3) are laterally and laterally positioned within the cavity (9). An axially extending channel (10) is formed on the first guide (2), and an axially extending channel (11) is formed on the second guide (3). The second channel (11) cooperates with the first channel (10). The first regulating valve (4) is fixedly installed at the left opening of the mounting cavity (9). The first regulating valve (4) cooperates with the first channel (10). The valve seat (1) also has a radially formed mounting port (12). The mounting port (12) is positioned directly below the first guide member (2). The mounting port (12) is connected to the second channel (11). The second regulating valve (6) is fixedly installed at the mounting port (12). The cutting fluid outlet pipe (8) is fixedly installed at the right opening of the mounting cavity (9). The cutting fluid outlet pipe (8) cooperates with the second channel (11).
2. The automatic cutting fluid proportioning device according to claim 1, characterized in that: It also includes a fixing seat (13), on which a fixing member (14) is installed. The fixing member (14) fixes the fixing seat (13) to the original liquid suction tube (7). The bottom of the fixing seat (13) also forms an installation ring wall (15), on which a first threaded connection structure is formed.
3. The automatic cutting fluid proportioning device according to claim 1, characterized in that: It also includes a float tube (16) with a float (17), the float tube (16) being threaded onto the bottom end of the original liquid suction tube (7), the bottom of the inner cavity of the float tube (16) having a first circumference (18), the first circumference (18) surrounding to form the original liquid suction port (19), and the upper circumference of the first circumference (18) being a downwardly inclined first conical surface (20), a limiting member (21) being installed on the float tube (16), the limiting member (21) limiting the float (17), and a plurality of limiting protrusions (22) being provided at the bottom of the float tube (16).
4. The automatic cutting fluid proportioning device according to claim 1, characterized in that: The second regulating valve (6) is connected to a first sealing joint (23) and a second sealing joint (24). The other end of the first sealing joint (23) is sealed to the original liquid suction tube (7), and the other end of the second sealing joint (24) is sealed to the installation port (12).
5. The automatic cutting fluid proportioning device according to claim 1, characterized in that: A third sealing joint (25) is connected to the first regulating valve (4). The other end of the third sealing joint (25) is sealed to the left opening of the mounting cavity (9). A first sealing ring (26) is also provided between the third sealing joint (25) and the first regulating valve (4) and between the left opening of the mounting cavity (9).
6. An automatic cutting fluid proportioning device according to any one of claims 1-5, characterized in that: The mounting cavity (9) is composed of a left cavity, a middle cavity, and a right cavity connected in sequence. The inner diameters of the left cavity and the right cavity are both larger than the inner diameter of the middle cavity. The left end of the first guide member (2) is provided with a second ring edge (27), which is positioned relative to the left cavity. The middle cavity is provided with a corresponding third ring edge (28), which is supported on the first guide member (2). The right end of the first guide member (2) and the right end of the first channel (10) are both funnel-shaped structures, with the tail of the funnel-shaped structure extending into the right cavity. The second guide member (3) is installed at the root of the right cavity. The left end of the second guide member (3) is provided with a relief cavity (29), the inner diameter of which is the same as the inner diameter of the middle cavity, and the ring surface of the relief cavity (29) is a second conical surface (30) that is inclined to the right.
7. The automatic cutting fluid proportioning device according to claim 6, characterized in that: A rotating fan blade (31) is also installed in the first channel (10).
8. The automatic cutting fluid proportioning device according to claim 7, characterized in that: The original liquid suction tube (7) is assembled from multiple tubes (32), and a second sealing ring (33) is provided at the joint of the original liquid suction tube (7).