High-pressure water outlet conveying equipment for cutting fluid

Abstract

The utility model relates to cutting fluid high pressure delivery technical field discloses a kind of cutting fluid high pressure water delivery equipment, comprising: box, filter bucket is set on box, filter bucket includes bucket body and bucket cover, and filter air nozzle is provided on bucket cover, filter air nozzle is connected to the inside of bucket body, the top of box is further provided with negative pressure device, and negative pressure device includes negative pressure cover, and exhaust group is provided in negative pressure cover, and inlet nozzle and outlet nozzle are provided on exhaust group, and inlet nozzle is connected with filter air nozzle.In the top of box, a dedicated negative pressure device is provided, which is connected to the inside of the filter bucket through the exhaust group and the filter air nozzle. Before the liquid supply pump starts or at the same time, the negative pressure device can quickly extract the air in the filter bucket, creating a negative pressure state inside. This fundamentally eliminates the back pressure caused by air, allowing the cutting fluid to flow smoothly and quickly into the filter bucket under the action of pressure difference, ensuring that the entire high-pressure delivery system can start quickly and smoothly.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure cutting fluid delivery technology, and in particular to a high-pressure cutting fluid water delivery device. Background Technology

[0002] In modern machining, cutting fluid is widely used in turning, milling, drilling, and grinding processes, serving functions such as cooling, lubrication, cleaning, and rust prevention. Metal shavings, abrasive particles, and other impurities generated during machining mix with the cutting fluid. If not removed promptly, these impurities can severely affect the surface quality and machining accuracy of the workpiece, and shorten the lifespan of cutting tools and equipment. Therefore, efficient filtration and recycling of used cutting fluid is a crucial step in achieving green, efficient, and precision manufacturing.

[0003] High-pressure cutting fluid delivery equipment is designed to provide clean cutting fluid with sufficient pressure and flow rate for machining centers, CNC machine tools, and similar applications. Such systems typically include a supply pump, a main circulation line, a filtration unit, and a return line. The filtration unit is the core of the entire system, usually employing one or more switchable, sealed filter tanks containing filter bags or cartridges to intercept solid impurities.

[0004] However, in practical applications, the applicant discovered a significant technical challenge with the existing technology: When the system starts up or the filter canister is reintroduced after cleaning, it is filled with air. If the fluid supply pump is turned on directly to inject cutting fluid into the filter canister, the air inside will create a significant back pressure (positive pressure), hindering the fluid's entry. More commonly, the fluid supply pump has a limited head, and the pressure it generates is insufficient to overcome this air resistance and adequately compress the air inside the canister. This results in the cutting fluid not being effectively injected into the filter canister, or the injection rate being extremely slow, severely impacting the system's rapid start-up and continuous operation. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a high-pressure cutting fluid delivery device that enables the cutting fluid to be effectively injected into the filter tank.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a high-pressure cutting fluid delivery device, comprising: The enclosure has an input pipe and an output pipe located on its rear side; A high-pressure delivery pump is installed inside the housing, and includes a delivery inlet and a delivery outlet; A filter canister is mounted on the housing. The filter canister includes a canister body and a canister lid. A filter vent is provided on the canister lid. The filter vent is connected to the interior of the canister body. A filter inlet and a filter outlet are provided at the bottom of the filter canister. The input pipe is connected to the filter inlet, and the filter outlet is connected to the conveying inlet and the conveying outlet is connected to the output pipe; The top of the housing is also equipped with a negative pressure device, which includes a negative pressure hood. An exhaust assembly is installed inside the negative pressure hood. The exhaust assembly is equipped with an air inlet and an air outlet. The air inlet is connected to the filter vent.

[0007] Furthermore, the barrel body has a hollow structure, and an annular mounting plate is provided at the bottom of the interior of the barrel body. A lower filter plate is provided at the top of the annular mounting plate. A filter rod is connected above the center of the lower filter plate. An upper filter plate is detachably connected to the top of the filter rod. A filter element is provided between the upper filter plate and the lower filter plate. A buffer filter cavity is formed between the filter element and the inner wall of the barrel body. The filter inlet is connected to the buffer filter cavity, and the filter outlet is connected to the interior of the annular mounting plate.

[0008] Furthermore, the filter element includes a core body and a core disk. Two sets of core disks are arranged vertically. The core body is disposed on the outer periphery of the core disk. The core disk has perforations and several core holes. The filter rod passes through the perforations.

[0009] Furthermore, a compression spring is provided at the center of the bottom of the bucket lid, and the bottom of the compression spring abuts against the top of the upper filter disc.

[0010] Furthermore, a filter mounting groove is provided on the top of the box, and an annular fixing plate is provided on the outer wall of the barrel.

[0011] Furthermore, a control switch is provided on the side of the exhaust assembly, which is used to control the operation of the exhaust assembly.

[0012] Furthermore, an electrical installation box is provided inside the enclosure, and a door is provided on the front side of the electrical installation box.

[0013] The beneficial effects of this utility model are as follows: (1) A dedicated negative pressure device is installed on the top of the housing, which directly draws air from the inside of the filter barrel through the exhaust group and the filter vent. Before or at the same time as the liquid supply pump starts, the negative pressure device can quickly draw out the air in the filter barrel, creating a negative pressure state inside. This fundamentally eliminates the back pressure formed by air, allowing the cutting fluid to flow smoothly and quickly into the filter barrel under the action of pressure difference, ensuring that the entire high-pressure delivery system can achieve rapid and stable startup.

[0014] (2) Since the introduction of the negative pressure device has solved the problem of injection resistance in advance, it is no longer necessary to rely on a high-head, high-power high-pressure pump to inject cutting fluid. This utility model can use a relatively small power supply pump to achieve the same delivery effect, which not only significantly reduces the manufacturing cost of the equipment, but more importantly, reduces power consumption in daily operation.

[0015] (3) The annular mounting plate, upper filter disc, and lower filter disc inside the filter tank together form a robust filter element mounting and support frame. The filter rod connects the upper and lower filter discs into one unit, forming a stable pressure-bearing structure. This design can effectively resist the long-term impact and pressure fluctuations of high-pressure cutting fluid, preventing the filter element assembly from deforming, cracking, or puncturing.

[0016] (4) By setting up a buffer filtration chamber, the high-pressure cutting fluid entering from the filtration inlet first impacts the inner wall of the barrel, rather than directly impacting the filter element. This structure plays a role in buffering, diffusion, and flow guidance, allowing the liquid to pass through the entire outer surface of the filter element smoothly and evenly, avoiding localized scouring damage. At the same time, this design makes full use of the entire effective filtration area of ​​the filter element, reducing the flow load per unit area.

[0017] (5) The filter element is precisely positioned and fixed between the upper and lower filter discs by passing the filter rod through the perforation of the upper and lower core discs. The compression spring at the bottom of the lid continuously applies downward pressure, causing the upper filter disc to press against the upper core disc of the filter element, ensuring the axial compression force of the filter element and preventing loosening under pressure fluctuations. This ensures the dynamic sealing effect between the end face of the filter element and the mounting base, effectively preventing short-circuit leakage of unfiltered liquid. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.

[0019] Figure 1 This invention provides a schematic diagram of the structure of a high-pressure cutting fluid delivery device according to an embodiment of the present invention. Figure 2 This invention provides another structural schematic diagram of a high-pressure cutting fluid delivery device according to an embodiment of the present invention. Figure 3 This invention provides a schematic diagram of the internal structure of a high-pressure cutting fluid delivery device according to an embodiment of the present invention. Figure 4An exploded view of the negative pressure device is provided for the embodiments of this utility model; Figure 5 A schematic diagram of the structure of the filter barrel provided in this embodiment of the utility model; Figure 6 This is a cross-sectional structural diagram of the filter bucket provided in an embodiment of the present utility model.

[0020] In the picture: 1. Housing; 11. Input pipe; 12. Output pipe; 13. Electrical installation box; 14. Box door; 2. High-pressure transfer pump; 21. Transfer inlet; 22. Transfer outlet; 3. Filter barrel; 31. Barrel body; 32. Barrel lid; 321. Filter vent; 33. Annular fixing plate; 34. Filter inlet; 35. Filter outlet; 36. Annular mounting plate; 37. Lower filter disc; 38. Filter rod; 39. Upper filter disc; 310. Compression spring; 311. Buffer filter chamber; 4. Filter element; 41. Element body; 42. Element disc; 421. Center perforation; 422. Element hole; 5. Negative pressure device; 51. Negative pressure cover; 52. Exhaust assembly; 521. Air inlet; 522. Air outlet; 523. Control switch. Detailed Implementation

[0021] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0025] like Figures 1 to 6 As shown, this embodiment provides a high-pressure cutting fluid delivery device. By integrating a dedicated negative pressure device 5, it effectively solves the air resistance problem during the startup of the filter tank 3, ensuring rapid system startup and efficient operation. The device mainly includes a housing 1, a high-pressure delivery pump 2, a filter tank 3, and a negative pressure device 5.

[0026] An inlet pipe 11 for connecting the cutting fluid and an outlet pipe 12 for discharging high-pressure clean cutting fluid are provided on the rear side of the housing 1. An electrical installation box 13 is located inside the housing 1, with an openable door 14 on its front for installing and protecting control system components. A filter mounting slot (not shown) is provided on the top of the housing 1 for mounting and fixing the filter barrel 3.

[0027] The high-pressure delivery pump 2 is fixedly installed inside the housing 1, and it has a delivery inlet 21 and a delivery outlet 22. This pump is the power source for the system to generate delivery pressure.

[0028] The filter canister 3 is seated on the filter mounting groove of the housing 1 via an annular fixing plate 33 at its bottom, and is sealed by bolts or other fasteners. The filter canister 3 includes a hollow canister 31 and an openable canister lid 32. A filter vent 321 is provided on the canister lid 32, which is connected to the negative pressure device 5 via a pipe, allowing the interior of the canister 31 to communicate with the outside.

[0029] The internal structure of the filter housing 3 is crucial for its efficient filtration and stable pressure resistance. An annular mounting plate 36 is located at the bottom inside the housing 31. A lower filter disc 37 is fixedly mounted on top of this annular mounting plate 36. A filter rod 38 extends upwards from the center of the lower filter disc 37, and its top is detachably connected to an upper filter disc 39 via threads or other means. A filter element 4 is installed between the upper filter disc 39 and the lower filter disc 37.

[0030] The filter element 4 includes a cylindrical core 41 and two core discs 42, one above the other. The core 41 is made of filter material (such as filter paper, metal mesh, etc.) and is fixed to the outer periphery of the two core discs 42. Each core disc 42 has a central through hole 421 and multiple core holes 422 distributed around the center. The filter rod 38 passes through the central through hole 421 of the lower and upper core discs 42 in sequence, thereby accurately positioning and confining the entire filter element 4 between the upper and lower filter discs 37. In addition, a compression spring 310 is provided at the center of the bottom of the lid 32. When the lid 32 is closed, the bottom of the compression spring 310 presses tightly against the top of the upper filter disc 39, providing a continuous axial compression force for the entire filtration structure (lower filter disc 37, filter element 4, upper filter disc 39).

[0031] The space between the outer wall of the filter element 4 and the inner wall of the barrel 31 forms a buffer filtration chamber 311. The bottom of the filter barrel 3 is provided with a filter inlet 34 and a filter outlet 35. The filter inlet 34 is connected to the input pipe 11 on the rear side of the housing 1 via a pipe, and introduces liquid into the buffer filtration chamber 311. The filter outlet 35 is connected to the internal cavity of the annular mounting plate 36, and is ultimately connected to the delivery inlet 21 of the high-pressure delivery pump 2 via a pipe.

[0032] The negative pressure device 5 is located on the top of the housing 1. It includes a negative pressure hood 51, inside which an exhaust assembly 52 is installed. The exhaust assembly 52 is an exhaust valve. The exhaust assembly 52 is equipped with an air inlet 521 and an air outlet 522. The air inlet 521 is connected to the filter vent 321 on the cover of the filter canister 3 via a pipe. A control switch 523 is also provided on the side of the exhaust assembly 52 for manual or automatic control of the start and stop of the exhaust assembly 52 by receiving an electrical signal.

[0033] The working process of this utility model is as follows: Start-up and pre-vacuuming stage: When the equipment needs to start working, the exhaust group 52 of the negative pressure device 5 is first activated by the control switch 523. The exhaust group 52 forcefully extracts the air inside the filter tank 3 through the filter vent 321, quickly creating a negative pressure state inside. This process effectively eliminates the back pressure generated by the air inside the tank on the subsequent injection of cutting fluid.

[0034] Liquid injection and filtration stage: Simultaneously or after the establishment of negative pressure, the high-pressure delivery pump 2 is started. Because the filter tank 3 is already under negative pressure, the cutting fluid to be treated, under the combined action of external atmospheric pressure and pump suction, smoothly and rapidly flows from the input pipe 11 through the filter inlet 34 into the buffer filtration chamber 311 of the filter tank 3. The liquid is buffered and diffused within the buffer filtration chamber 311, and then evenly passes through the core 41 of the filter element 4 from the outside in. Solid impurities are trapped on the outer surface of the filter element 4, while the clean liquid passes through the core holes 422 on the core plate 42, enters the central flow channel formed by the upper and lower filter plates 37 and the filter rod 38, and finally flows out through the filter outlet 35.

[0035] High-pressure delivery stage: The clean cutting fluid flowing out from the filter outlet 35 is drawn in by the high-pressure delivery pump 2 and pumped out from its delivery outlet 22 to form a high-pressure cutting fluid flow, which is delivered to machine tools and other processing equipment through the output pipe 12.

[0036] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A high-pressure cutting fluid delivery device, characterized in that, include: The box (1) has an input pipe (11) and an output pipe (12) on its rear side. A high-pressure delivery pump (2) is installed inside the housing (1), and includes a delivery inlet (21) and a delivery outlet (22). A filter bucket (3) is installed on the box body (1). The filter bucket (3) includes a bucket body (31) and a bucket cover (32). A filter vent (321) is provided on the bucket cover (32). The filter vent (321) is connected to the inside of the bucket body (31). A filter inlet (34) and a filter outlet (35) are provided at the bottom of the filter bucket (3). The input pipe (11) is connected to the filter inlet (34), the filter outlet (35) is connected to the delivery inlet (21), and the delivery outlet (22) is connected to the output pipe (12). The top of the box (1) is also provided with a negative pressure device (5). The negative pressure device (5) includes a negative pressure cover (51). An exhaust group (52) is provided inside the negative pressure cover (51). An air inlet (521) and an air outlet (522) are provided on the exhaust group (52). The air inlet (521) is connected to the filter air vent (321).

2. The cutting fluid high-pressure water delivery device according to claim 1, characterized in that, The barrel (31) is a hollow structure. An annular mounting plate (36) is provided at the bottom of the barrel (31). A lower filter plate (37) is provided at the top of the annular mounting plate (36). A filter rod (38) is connected above the center of the lower filter plate (37). An upper filter plate (39) is detachably connected to the top of the filter rod (38). A filter element (4) is provided between the upper filter plate (39) and the lower filter plate (37). A buffer filter chamber (311) is formed between the filter element (4) and the inner wall of the barrel (31). The filter inlet (34) is connected to the buffer filter chamber (311). The filter outlet (35) is connected to the interior of the annular mounting plate (36).

3. The cutting fluid high-pressure water delivery device according to claim 2, characterized in that, The filter element (4) includes a core body (41) and a core disk (42). The core disk (42) is provided in two sets and is distributed vertically. The core body (41) is located on the outer periphery of the core disk (42). The core disk (42) is provided with perforations and several core holes (422). The filter rod (38) passes through the perforations.

4. A high-pressure cutting fluid delivery device according to claim 2 or 3, characterized in that, A compression spring (310) is provided at the center of the bottom of the bucket lid (32), and the bottom of the compression spring (310) abuts against the top of the upper filter plate (39).

5. The cutting fluid high-pressure water delivery device according to claim 1, characterized in that, The top of the box (1) is provided with a filter installation groove, and the outer wall of the barrel (31) is provided with an annular fixing plate (33).

6. The high-pressure cutting fluid delivery device according to claim 1, characterized in that, A control switch (523) is provided on the side of the exhaust assembly (52), which is used to control the operation of the exhaust assembly (52).

7. The cutting fluid high-pressure water delivery device according to claim 1, characterized in that, The enclosure (1) is equipped with an electrical installation box (13), and the electrical installation box (13) has a door (14) on the front side.

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