A device for removing waste cutting fluid oil

Abstract

The invention discloses a waste oil removal device for cutting fluid, and belongs to the technical field of waste oil removal for cutting fluid. The device comprises a waste oil collector vertical guide support and a waste oil collector, wherein the waste oil collector vertical guide support comprises a base and a waste oil collector vertical guide rail arranged above the base; the waste oil collector is provided with a guide hole, a waste oil collection chamber, a buoyancy generating chamber, a counterweight placement plate, a counterweight and an oil drain pipe which are slidably connected with the waste oil collector vertical guide rail, the waste oil collection chamber is open at both ends, and comprises an oil-liquid separation port, an oil guide chamber and an oil outlet, the oil-liquid separation port is located at the upper edge of the oil guide chamber, and is composed of a plurality of annular notches, the bottom edge of each notch is a flat edge, and is at the same horizontal height, the oil outlet is an opening at the lower end of the oil guide chamber, and is connected to the oil drain pipe, and the buoyancy generating chamber is located on the outside of the waste oil collection chamber. The device has the characteristics of high waste oil removal efficiency, stable and reliable operation, and continuous and uninterrupted automatic operation.

Description

Technical Field

[0001] The invention relates to the technical field of removing waste cutting fluid oil. Background Art

[0002] In the process of metal processing, high temperature and friction will be generated between the tool and the workpiece due to the cutting force, so cutting fluid (emulsion) is needed to play a role of lubrication and cooling. The cutting fluid is recycled during the machining process. If it is contaminated by oil during use, it will affect the machining accuracy of the parts and the service life of the equipment. However, in actual production, some lubricating oil and hydraulic oil will inevitably be brought into the cutting fluid of the machine tool due to leakage and other reasons. Long-term accumulation will form an oil film on the surface of the cutting fluid. In this way, when machining parts, anaerobic bacteria will breed in the cutting fluid under the action of the high temperature generated by the cutting force, causing the cutting fluid to deteriorate and stink, polluting the surrounding environment and affecting the health of workers. In addition, if the contaminated cutting fluid continues to be used during the machining process, mechanical abrasion and wear will occur, so that the precision of the machined workpiece cannot meet the design requirements. At the same time, the debris and impurities generated will flow back into the cutting fluid to further contaminate the cutting fluid, causing a vicious cycle, affecting the machining accuracy of the machine tool equipment, and greatly increasing the scrap rate. In view of this situation, most machining manufacturers currently need to frequently replace the cutting fluid in order to ensure that the cutting fluid will not deteriorate, thereby ensuring the machining accuracy. During the process of replacing and cleaning the cutting fluid, the company's production line needs to be shut down, which will lead to a decrease in the company's production efficiency. In addition, the company needs to hire workers to clean and change the fluid, and needs to pay labor costs. The combination of the two makes the company's maintenance costs remain high.

[0003] At present, some enterprises have added waste oil collection devices to the cutting fluid circulation system. Most of them use floating bladders to collect waste oil. The collected floating oil flows into the inside of the bladder along the bladder, and then is transported to the corresponding processing machine by pipeline. The production cost is high. Since the waste oil flows through the inner wall of the bladder, grease or dirt accumulates on the inner wall of the bladder, causing the oil inlet to fluctuate up and down due to the change of buoyancy. The operation is unstable, the waste oil is not cleaned thoroughly, and the inside of the bladder needs to be cleaned frequently. The production cost is also high. There is no guide device for floating up and down, and it is easy to overturn under the action of suction. Therefore, someone must be on duty during work. When dealing with cutting fluids with different densities, the buoyancy provided by the device may be too large (or too small), causing the oil collection port to deviate from the waste oil (floating oil layer), resulting in unsatisfactory waste oil collection effect of the device. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a cutting fluid waste oil removal device, which has the characteristics of high waste oil removal efficiency, stable and reliable operation, and continuous and uninterrupted automatic operation.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A cutting fluid waste oil removal device comprises a waste oil collector vertical guide support and a waste oil collector, wherein the waste oil collector vertical guide support comprises a base and a waste oil collector vertical guide rail arranged above the base; the waste oil collector is provided with a guide hole, a waste oil collection chamber, a buoyancy generating chamber, a counterweight placement plate, a counterweight and an oil drain pipe which are slidably connected to the waste oil collector vertical guide rail, the waste oil collection chamber is open at both ends, and comprises an oil-liquid separation port, an oil guide chamber and an oil outlet, the oil-liquid separation port is located at the upper edge of the oil guide chamber, and is composed of a plurality of annular notches, the bottom edge of each notch is a flat edge and is at the same horizontal height, the oil outlet is an opening at the lower end of the oil guide chamber, and is connected to the oil drain pipe, and the buoyancy generating chamber is located outside the waste oil collection chamber.

[0007] The present invention is further improved in that:

[0008] The waste oil collection chamber is a conical chamber formed by the funnel wall of the conical funnel.

[0009] The plurality of annular notches forming the oil separation port are rectangular notches.

[0010] The buoyancy generating chamber is an annular chamber arranged around the outer periphery of the waste oil collecting chamber. The buoyancy generating chamber is composed of an inner wall, a top wall, a bottom wall and an outer wall. The inner wall is the funnel wall of the conical funnel, the outer wall is a cylindrical wall, which is coaxial with the conical funnel, the bottom wall is a ring-shaped flat plate that closes the bottom end of the inner wall and the bottom end of the outer wall, the top wall closes the top end of the inner wall and the top end of the outer wall, and the surface of the top wall is a surface formed by extending the radial line along the edge of the groove constituting the oil-liquid separation port to the outer wall.

[0011] The oil outlet of the waste oil collection chamber is horizontally connected to the oil drain pipe through a three-way joint, and the bottom opening of the three-way joint is closed by a pipe cap.

[0012] The counterweight placement plate is located at the lower part of the conical funnel and is fixedly connected to the bottom outer wall of the three-way joint. The counterweight placement plate is provided with a guide hole slidably connected to the vertical guide rail of the waste oil collector, and the counterweight is fixed to the counterweight placement plate by bolts.

[0013] The vertical guide rails of the waste oil collector are three cylindrical guide rails, which are arranged on the base in a 120° circle with the axis of the conical funnel as the vertex. The guide pipe vertically passes through the buoyancy generating cavity. The outer wall of the bottom end of the guide pipe is sealed and connected to the bottom wall of the buoyancy generating cavity. The outer wall of the top end of the guide pipe is sealed and connected to the top wall of the raised flat part of the buoyancy generating cavity. The inner cavity of the guide pipe forms a guide hole that is slidably connected to the vertical guide rail of the waste oil collector.

[0014] The waste oil collector vertical guide support also includes a handle. The tops of the three waste oil collector vertical guide rails are respectively fixed to the annular top plate through threaded nut structures, and the handle is fixed on the upper part of the annular top plate.

[0015] The cavity walls forming the buoyancy generating cavity and the waste oil collecting cavity are an integral structure formed by injection molding.

[0016] The beneficial effects of adopting the above technical solution are:

[0017] In the present invention, when the oil-liquid separation port is in working state, the waste oil (floating oil layer) floating on the surface of the liquid can be introduced into the oil guide cavity. The working state of the oil-liquid separation port is: the convex part between each notch constituting the oil-liquid separation port floats on the liquid surface, and the bottom edge of each notch remains horizontal and above the interface between the cutting liquid and the waste oil. The convex part between each notch constituting the oil-liquid separation port floats on the liquid surface, and the outer wall of the convex part blocks the liquid from entering the oil guide cavity, so that the liquid level at the outer wall of the convex part is basically consistent with the actual height of the liquid level, and an equal height difference is formed with the bottom edge of each notch, so that the liquid layer located above the bottom edge of each notch enters the oil guide cavity uniformly; the bottom edge of each notch remains horizontal and above the interface between the cutting liquid and the waste oil, that is, each notch is located in the waste oil (floating oil layer), so that the waste oil (floating oil layer) flows into the oil guide cavity, and then is discharged from the oil outlet at the lower end of the oil guide cavity through the oil discharge pipe, thereby achieving the purpose of removing the waste cutting oil. Since the density of waste oil (floating oil layer) is much lower than that of cutting fluid, as the waste oil cleaning time increases, the thickness of the waste oil (floating oil layer) gradually decreases, the waste oil collector rises slightly, and the height of each notch relative to the waste oil (floating oil layer) gradually moves upward slightly, thereby preventing the cutting fluid from flowing into the oil guide cavity through the notches, ensuring the stability and reliability of the waste oil removal work.

[0018] The waste oil collector is provided with a buoyancy generating chamber, a counterweight placing plate and a counterweight. The buoyancy generating chamber generates buoyancy for the waste oil collector. According to the density of the cutting fluid and the waste oil and the thickness of the waste oil (floating oil layer) floating on the surface of the cutting fluid, the weight of the waste oil collector is adjusted by adjusting the counterweight, so that the raised part between the slots constituting the oil separation port floats above the liquid surface, and the bottom edge of each slot is kept above the interface of the cutting fluid and the waste oil.

[0019] The waste oil collector vertical guide support includes a base and a waste oil collector vertical guide rail arranged above the base. The base is used to support the bottom of the cutting fluid tank and keep the waste oil collector vertical guide rail in a vertical state. The waste oil collector is provided with a guide hole slidably connected to the waste oil collector vertical guide rail. The bottom edge of each notch is a flat edge and is at the same horizontal height, which can keep the waste oil collector in a vertical upward working state at all times, so that the bottom edge of each notch remains horizontal to ensure that the oil-liquid separation port is in a working state.

[0020] It has the characteristics of high waste oil removal efficiency, stable and reliable operation, and continuous and uninterrupted unattended automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 yes Figure 1 A top view of

[0023] Figure 3 yes Figure 2 AA section view in;

[0024] Figure 4 yes Figure 3 A partial enlarged view of middle I;

[0025] Figure 5 yes Figure 1 A schematic diagram of the structure of the vertical guide support of the waste oil collector;

[0026] Figure 6 yes Figure 1 Schematic diagram of the structure of the waste oil collector.

[0027] In the attached drawings: 1. base; 2. vertical guide rail; 3. guide hole; 4. waste oil collection chamber; 4-1. oil guide chamber; 4-2. oil outlet; 4-3. notch; 5. buoyancy generating chamber; 5-1. funnel wall of conical funnel; 5-2. top wall of buoyancy generating chamber; 5-3. bottom wall of buoyancy generating chamber; 5-4. outer wall of buoyancy generating chamber; 6. counterweight placement plate; 7. counterweight; 8. oil drain pipe; 9. three-way joint; 10. pipe cap; 11. handle; 12. annular top plate. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Depend on Figure 1-6 As can be seen from the illustrated embodiment, this embodiment includes a waste oil collector vertical guide support and a waste oil collector. The waste oil collector vertical guide support includes a base 1 and a waste oil collector vertical guide rail 2 arranged above the base 1; the waste oil collector is provided with a guide hole 3, a waste oil collection chamber 4, a buoyancy generating chamber 5, a counterweight placement plate 6, a counterweight 7 and an oil discharge pipe 8 which are slidably connected to the waste oil collector vertical guide rail 2. The waste oil collection chamber 4 is open at both ends, including an oil-liquid separation port, an oil guide chamber 4-1 and an oil outlet 4-2. The oil-liquid separation port is located at the upper edge of the oil guide chamber 4-1, which is composed of a plurality of annular notches 4-3. The bottom edge of each notch 4-3 is a flat edge and is at the same horizontal height. The oil outlet 4-2 is an opening at the lower end of the oil guide chamber 4-1, which is connected to the oil discharge pipe 8. The buoyancy generating chamber 5 is located on the outside of the waste oil collection chamber 4.

[0030] The waste oil collection chamber 4 is a conical chamber formed by the funnel wall 5 - 1 of the conical funnel.

[0031] The multiple annular notches 4 - 3 forming the oil separation port are rectangular notches.

[0032] The buoyancy generating chamber 5 is an annular chamber arranged around the outer periphery of the waste oil collecting chamber 4. The buoyancy generating chamber 5 is composed of an inner wall, a top wall 5-2, a bottom wall 5-3 and an outer wall 5-4. The inner wall is the funnel wall 5-1 of the conical funnel, the outer wall 5-4 is a cylindrical wall coaxial with the conical funnel, the bottom wall 5-3 is a ring-shaped flat plate that closes the bottom end of the inner wall and the bottom end of the outer wall 5-4, the top wall 5-2 closes the top end of the inner wall and the top end of the outer wall 5-4, and the surface where the top wall 5-2 is located is the surface formed by the radial line extending from the edge of the notch 4-3 constituting the oil-liquid separation port to the outer wall 5-4. The upward buoyancy is generated uniformly, which is conducive to the buoyancy generating chamber 5 floating up and down with the liquid level, facilitating the injection molding of the integrated structure, and miniaturizing the waste oil collector.

[0033] The oil outlet 4 - 2 of the waste oil collection chamber 4 is horizontally connected to the oil drain pipe 8 through a three-way joint 9 , and the bottom opening of the three-way joint 9 is closed by a pipe cap 10 .

[0034] The counterweight placement plate 6 is located at the lower part of the conical funnel and is fixedly connected to the bottom outer wall of the three-way joint 9. The counterweight placement plate 6 is provided with a guide hole 3 that is slidably connected to the vertical guide rail 2 of the waste oil collector, and the counterweight 7 is fixed to the counterweight placement plate 6 by bolts.

[0035] The waste oil collector vertical guide rails 2 are three cylindrical guide rails, with the conical funnel axis as the vertex, and are arranged on the base 1 in a 120° circle. The guide pipe vertically passes through the buoyancy generating chamber 5, the outer wall of the bottom end of the guide pipe is sealedly connected to the bottom wall 5-3 of the buoyancy generating chamber, the outer wall of the top end of the guide pipe is sealedly connected to the top wall 5-2 of the raised flat part of the buoyancy generating chamber, and the inner cavity of the guide pipe forms a guide hole 3 that is slidably connected to the waste oil collector vertical guide rail 2.

[0036] The waste oil collector vertical guide support also includes a handle 11 . The tops of the three waste oil collector vertical guide rails 2 are respectively fixed to the annular top plate 12 through threaded nut structures, and the handle 11 is fixed on the upper part of the annular top plate 12 .

[0037] The cavity walls forming the buoyancy generating cavity 5 and the waste oil collecting cavity 4 are an integral structure formed by injection molding.

[0038] Working principle:

[0039] First, install and debug the equipment. Put the device into the cutting fluid tank, support the base 1 at the bottom of the cutting fluid tank, adjust the base 1 to keep the vertical guide rail 2 of the waste oil collector vertical, connect the outlet of the oil drain pipe 8 with the inlet of the liquid purifier, and rely on the suction of the liquid purifier to quickly and efficiently suck the waste oil in the cutting fluid tank into the liquid purifier for processing. By adjusting the number and specifications of the counterweight 7 loaded on the counterweight placement plate 6, adjust the weight of the waste oil collector so that the raised parts between the notches 4-3 that constitute the oil-liquid separation port float above the liquid surface, and the bottom edges of each notch remain above the interface between the cutting fluid and the waste oil.

[0040] After the equipment is installed and debugged, uninterrupted waste oil removal work can be carried out.

Claims

1. A cutting fluid waste oil removal device, characterized in that: The invention comprises a waste oil collector vertical guide support and a waste oil collector, wherein the waste oil collector vertical guide support comprises a base (1) and a waste oil collector vertical guide rail (2) arranged above the base (1); the waste oil collector is provided with a guide hole (3) slidably connected to the waste oil collector vertical guide rail (2), a waste oil collection chamber (4), a buoyancy generating chamber (5), a counterweight placement plate (6), a counterweight (7) and an oil discharge pipe (8); the waste oil collection chamber (4) is open at both upper and lower ends. The oil-liquid separation port comprises an oil-liquid separation port, an oil guide chamber (4-1) and an oil outlet (4-2); the oil-liquid separation port is located at the upper edge of the oil guide chamber (4-1) and is composed of a plurality of annular notches (4-3); the bottom edges of the notches (4-3) are flat and are at the same level; the oil outlet (4-2) is an opening at the lower end of the oil guide chamber (4-1) and is connected to the oil drain pipe (8); the buoyancy generating chamber (5) is located outside the waste oil collecting chamber (4); The waste oil collection chamber (4) is a conical chamber formed by a funnel wall (5-1) of a conical funnel; The plurality of annular notches (4-3) forming the oil-liquid separation port are rectangular notches; The buoyancy generating chamber (5) is an annular chamber arranged around the outer periphery of the waste oil collecting chamber (4). The buoyancy generating chamber (5) is composed of an inner wall, a top wall (5-2), a bottom wall (5-3) and an outer wall (5-4) which are closed. The inner wall is the funnel wall (5-1) of the conical funnel. The outer wall (5-4) is a cylindrical wall which is coaxial with the conical funnel. The bottom wall (5-3) is formed by an annular flat plate to close the bottom end of the inner wall (5-1) and the bottom end of the outer wall (5-4). The top wall (5-2) closes the top end of the inner wall (5-1) and the top end of the outer wall (5-4). The surface of the top wall (5-2) is a surface formed by the radial line extending from the edge of the notch (4-3) constituting the oil-liquid separation port to the outer wall (5-4). The oil outlet (4-2) of the waste oil collection chamber (4) is horizontally connected to the oil drain pipe (8) via a three-way joint (9), and the bottom opening of the three-way joint (9) is closed by a pipe cap (10); The counterweight placement plate (6) is located at the lower part of the conical funnel and is fixedly connected to the outer wall of the bottom of the three-way joint (9). The counterweight placement plate (6) is provided with a guide hole (3) that is slidably connected to the vertical guide rail (2) of the waste oil collector. The counterweight (7) is fixed to the counterweight placement plate (6) by bolts.

2. A cutting fluid waste oil removal device according to claim 1, characterized in that: The waste oil collector vertical guide rail (2) is composed of three cylindrical guide rails, which are arranged on the base (1) at intervals of 120 degrees with the axis of the conical funnel as the vertex. The guide pipe vertically passes through the buoyancy generating chamber (5). The outer wall of the bottom end of the guide pipe is sealedly connected to the bottom wall (5-3) of the buoyancy generating chamber. The outer wall of the top end of the guide pipe is sealedly connected to the top wall (5-2) of the raised plane part of the buoyancy generating chamber. The inner cavity of the guide pipe forms a guide hole (3) which is slidably connected to the waste oil collector vertical guide rail (2).

3. A cutting fluid waste oil removal device according to claim 2, characterized in that: The waste oil collector vertical guide support also includes a handle (11), and the tops of the three waste oil collector vertical guide rails (2) are respectively fixed to the annular top plate (12) through threaded nut structures, and the handle (11) is fixed on the upper part of the annular top plate (12).

4. A waste cutting oil removal device according to claim 3, characterized in that: The cavity walls forming the buoyancy generating cavity (5) and the waste oil collecting cavity (4) are an integral structure formed by injection molding.

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