CNC machining center oil mist collecting and purifying device

Abstract

The utility model relates to the technical field of purification devices, in particular to a CNC (computer numerical control) machining center oil mist collection and purification device which comprises a purification bin, a rotating seat, an exhaust fan, a liquid discharge pipe and an oil mist interception piece, an air inlet is formed in the side wall of the purification bin, the rotating seat is of a hollow structure and is rotatably connected to the purification bin, and an exhaust hole and an air nozzle are formed in the rotating seat; the oil mist intercepting part is of a double-layer structure composed of a steel wire mesh and sponge, is spirally arranged and connected between the purification bin and the rotating seat, and forms a spiral purification channel in the purification bin, the air inlet hole and the exhaust hole communicate with the two ends of the purification channel correspondingly, the air nozzle communicates with the air inlet end of the exhaust fan, and the exhaust fan communicates with the air outlet end of the exhaust fan. A valve is mounted on the liquid discharge pipe and is arranged at the bottom of the purification bin. According to the oil mist removal device, oil mist in surrounding air can be effectively removed, cooling liquid in the sponge used for adsorbing the oil mist can be conveniently extruded out, and therefore the cooling liquid accumulated in the device is removed, and the follow-up purification capacity of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of purification devices, in particular to an oil mist collection and purification device for a CNC machining center. Background Art

[0002] In modern machining, CNC (computer numerical control) machine tools are widely used in the manufacture of various precision parts. To ensure machining accuracy and extend tool life, oil-based coolants are often used to cool CNC tools during operation. However, as temperatures rise during machining, the oil-based coolant evaporates, producing a large amount of oil mist. This oil mist not only pollutes the air quality in the workshop but can also enter the human body through the respiratory system, posing a potential threat to the health of operators.

[0003] In response to the above problems, there have been some attempts in the prior art to solve the problem of oil mist pollution. For example, the patent with application number CN202321097345.4 discloses an oil mist collection and purification device for a CNC machining center. The collection and purification device absorbs oil mist particles through an oil-repellent film. After completing the oil mist purification, it is connected to an external water pipe through a flange, and a cleaning liquid can be injected into the oil mist collection cover through a water injection pipe to clean the oil mist particles attached to the surface of the oil-repellent film in the collection and purification device. Although this can clean up the oil mist on the surface of the oil-repellent film to a certain extent, due to the strong hydrophobicity of the oil mist, the actual effect of this water-based cleaning method in cleaning the oil mist is not ideal, resulting in the accumulation of oil mist inside the purification device, which in turn affects the subsequent purification capacity of the purification device. To this end, we propose an oil mist collection and purification device for a CNC machining center. Utility Model Content

[0004] The purpose of the utility model is to provide an oil mist collection and purification device for a CNC machining center, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized through the following technical solutions:

[0006] A CNC machining center oil mist collection and purification device includes a purification chamber, a rotating seat, an exhaust fan, a drain pipe and an oil mist interceptor, wherein the side wall of the purification chamber is provided with an air inlet, the rotating seat is a hollow structure and is rotatably connected to the purification chamber, the rotating seat is provided with an exhaust hole and an air nozzle, the oil mist interceptor is a double-layer structure composed of a wire mesh and a sponge, the oil mist interceptor is spirally arranged and connected between the purification chamber and the rotating seat, the oil mist interceptor forms a spiral purification channel in the purification chamber, the air inlet and the exhaust hole are respectively connected to the two ends of the purification channel, the air nozzle is connected to the air inlet end of the exhaust fan, and a valve is installed on the drain pipe and is arranged at the bottom of the purification chamber.

[0007] Optionally, a driving handle is provided on the top of the rotating seat, and the driving handle is movable through the purification chamber and extends to the outside of the purification chamber.

[0008] Optionally, the air nozzle is arranged at the bottom end of the rotating seat, the air nozzle is movably arranged to pass through the purification chamber, and the exhaust fan is fixedly installed at the air nozzle position at the bottom of the purification chamber.

[0009] Optionally, a first sealing ring is provided at a movable connection position between the driving handle and the purification chamber, and a second sealing ring is provided at a movable connection position between the air nozzle and the purification chamber.

[0010] Optionally, a plurality of the air inlet holes and the air exhaust holes are provided, the plurality of the air inlet holes are arranged at intervals along the circumference of the purification chamber, and the plurality of the air exhaust holes are arranged at intervals along the circumference of the rotating seat.

[0011] Optionally, a retaining ring for covering the exhaust hole is fixedly provided on the outer edge of the top of the rotating seat, and there is a gap between the bottom of the retaining ring and the bottom of the purification chamber, and a semi-closed air passage connected to the exhaust hole is formed between the retaining ring and the rotating seat.

[0012] Compared with the existing technology, the utility model provides a CNC machining center oil mist collection and purification device, which has the following beneficial effects:

[0013] 1. This utility model, through the coordinated use of a purification chamber, a rotating seat, an exhaust fan, a drain pipe, and an oil mist interceptor, can not only effectively remove oil mist from the surrounding air, but also conveniently squeeze out the coolant in the sponge used to absorb the oil mist, thereby effectively removing the coolant accumulated inside the device and thereby improving the subsequent purification capacity of the device;

[0014] 2. The utility model provides a first sealing ring at the movable connection between the driving handle and the purification chamber, and a second sealing ring at the movable connection between the air nozzle and the purification chamber, which can effectively improve the sealing performance of the movable connection between the rotating seat and the purification chamber;

[0015] 3. The utility model provides a retaining ring on the outside of the exhaust hole, which can not only provide support and compression for the sponge at one end of the oil mist interceptor connected to the rotating seat, but also prevent the sponge from directly contacting the exhaust hole, thereby preventing the coolant squeezed out of the sponge from leaking out of the exhaust hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cutaway structure of the present utility model;

[0018] Figure 3 For the utility model Figure 2 Schematic diagram of the main structure;

[0019] Figure 4 It is a schematic diagram of the top view and cross-section structure of the purification chamber of the present invention.

[0020] In the figure: 1. Purification chamber; 2. Rotating seat; 3. Exhaust fan; 4. Drain pipe; 5. Oil mist interceptor; 50. Wire mesh; 51. Sponge; 6. Air inlet; 7. Exhaust hole; 8. Air nozzle; 9. Purification channel; 10. Valve; 11. Drive handle; 12. First sealing ring; 13. Second sealing ring; 14. Retaining ring; 15. Air passage. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example: See Figures 1 to 4 According to an embodiment of the present utility model, an oil mist collection and purification device for a CNC machining center is provided, comprising a purification chamber 1, a rotating seat 2, an exhaust fan 3, a drain pipe 4 and an oil mist interceptor 5. An air inlet 6 is provided on the side wall of the purification chamber 1, the rotating seat 2 is a hollow structure and is rotatably connected to the purification chamber 1, an exhaust hole 7 and an air nozzle 8 are provided on the rotating seat 2, and the oil mist interceptor 5 is a double-layer structure composed of an elastic wire mesh 50 and a sponge 51. The sponge 51 is specifically arranged on the inner side of the wire mesh 50, the oil mist interceptor 5 is spirally arranged and fixedly connected between the purification chamber 1 and the rotating seat 2, the oil mist interceptor 5 forms a spiral purification channel 9 in the purification chamber 1, the air inlet 6 and the exhaust hole 7 are respectively connected to the two ends of the purification channel 9, the air nozzle 8 is connected to the air inlet end of the exhaust fan 3, and a valve 10 is installed on the drain pipe 4 and is arranged at the bottom of the purification chamber 1.

[0023] The oil mist collection and purification device for a CNC machining center of the above structure is installed at the position of the CNC machine tool where the oil mist needs to be removed. Then, the exhaust fan 3 is started to allow the surrounding air containing oil mist particles to enter the purification channel 9 from the air inlet 6, flow through the purification channel 9, and be discharged from the exhaust hole 7. When the air flows through the purification channel 9, the sponge 51 can effectively absorb the oil mist particles in the air, thereby achieving the purpose of removing the oil mist. When the sponge 51 reaches a saturated state, by rotating the rotating seat 2, the wire mesh 50 is wrapped around the surface of the rotating seat 2, and the wire mesh 50 is used to squeeze the sponge 51 to squeeze out the coolant in the sponge 51. Finally, the valve 10 on the drain pipe 4 is opened, and the squeezed coolant can be discharged from the drain pipe 4 and collected. After the coolant is discharged, the rotating seat 2 is rotated in the opposite direction, and the oil mist intercepting member 5 returns to its original shape under the rebound force of the wire mesh 50, and the purification channel 9 is formed again in the purification chamber 1. It can be seen that the oil mist collection and purification device of the CNC machining center with the above structure can not only effectively remove the oil mist in the surrounding air, but also can conveniently squeeze out the coolant in the sponge 51 used to absorb the oil mist, thereby effectively removing the coolant accumulated inside the device, thereby improving the subsequent purification capacity of the device.

[0024] In this exemplary embodiment, a driving handle 11 is provided on the top of the rotating base 2. The driving handle 11 is movable through the purification chamber 1 and extends to the outside of the purification chamber 1. With this arrangement, the user can manually drive the rotating base 2 to rotate using the driving handle 11. Of course, in other embodiments, the rotating base 2 can also be driven by a motor.

[0025] In this exemplary embodiment, the air nozzle 8 is provided at the bottom end of the rotating base 2, and the air nozzle 8 is movably provided through the purification chamber 1. The exhaust fan 3 is fixedly installed at the bottom of the purification chamber 1 at the position of the air nozzle 8. This arrangement allows the exhaust end of the exhaust fan 3 to be connected to the air nozzle 8 without the use of a pipeline.

[0026] In this exemplary embodiment, a first sealing ring 12 is provided at the movable connection between the driving handle 11 and the purification chamber 1, and a second sealing ring 13 is provided at the movable connection between the air nozzle 8 and the purification chamber 1. The provision of the first sealing ring 12 and the second sealing ring 13 can improve the sealing performance of the movable connection between the rotating base 2 and the purification chamber 1.

[0027] To achieve multi-directional oil mist removal, in this exemplary embodiment, multiple air inlet holes 6 and multiple air outlet holes 7 are provided. The multiple air inlet holes 6 are spaced apart along the circumference of the purification chamber 1, and the multiple air outlet holes 7 are spaced apart along the circumference of the rotating base 2. This arrangement allows the air inlet holes 6 to draw in air from the surrounding area of ​​the purification chamber 1, thereby achieving multi-directional oil mist removal.

[0028] In this exemplary embodiment, a retaining ring 14 is fixedly mounted on the outer edge of the top of the rotating base 2 to block the exhaust hole 7. A gap is formed between the bottom of the retaining ring 14 and the bottom of the purification chamber 1. A semi-enclosed air passage 15 is formed between the retaining ring 14 and the rotating base 2, communicating with the exhaust hole 7. The provision of the retaining ring 14 outside the exhaust hole 7 not only provides support and compression for the sponge 51 at one end of the oil mist interceptor 5 connected to the rotating base 2, but also prevents direct contact between the sponge 51 and the exhaust hole 7, thereby preventing coolant squeezed out of the sponge 51 from leaking out of the exhaust hole 7.

[0029] Working principle: The oil mist collection and purification device for the CNC machining center is installed at the position where the oil mist is generated by the CNC machine tool to ensure that the air inlet 6 can effectively capture the oil mist in the working area; turn on the exhaust fan 3, and use the negative pressure effect to suck the air containing oil mist particles into the purification channel 9 from the air inlet 6 of the purification chamber 1; when the air flows through the purification channel 9, the oil mist particles in the air are adsorbed by the sponge 51 of the oil mist interceptor 5; when the sponge 51 of the oil mist interceptor 5 reaches a saturated state, rotate the rotating seat 2 so that the wire mesh 50 on the oil mist interceptor 5 is tightly wound around the surface of the rotating seat 2. During the winding process, the wire mesh 50 of the oil mist interceptor 5 will exert pressure on the sponge 51, thereby squeezing out the coolant accumulated in the sponge 51; open the valve 10 at the end of the drain pipe 4 to allow the squeezed coolant to flow out smoothly through the drain pipe 4 and into a special collection container. The collected coolant can be further processed and reused, or properly disposed of in accordance with relevant regulations; after the drainage is completed, rotate the rotating seat 2 in the opposite direction to release the pressure of the wire mesh 50, and the oil mist interceptor 5 returns to its original state under the action of the elastic restoring force, and is once again ready to meet the next round of oil mist purification tasks.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC machining center oil mist collection and purification device, characterized in that: The invention comprises a purification chamber (1), a rotating seat (2), an exhaust fan (3), a drain pipe (4) and an oil mist interceptor (5), wherein the side wall of the purification chamber (1) is provided with an air inlet (6), the rotating seat (2) is a hollow structure and is rotatably connected to the purification chamber (1), the rotating seat (2) is provided with an exhaust hole (7) and an air nozzle (8), the oil mist interceptor (5) is a double-layer structure composed of a steel mesh (50) and a sponge (51), the oil mist interceptor (5) is spirally arranged and connected between the purification chamber (1) and the rotating seat (2), the oil mist interceptor (5) forms a spiral purification channel (9) in the purification chamber (1), the air inlet (6) and the exhaust hole (7) are respectively connected to the two ends of the purification channel (9), the air nozzle (8) is connected to the air inlet end of the exhaust fan (3), and a valve (10) is installed on the drain pipe (4) and is arranged at the bottom of the purification chamber (1).

2. The oil mist collection and purification device for a CNC machining center according to claim 1, characterized in that: A driving handle (11) is provided on the top of the rotating seat (2), and the driving handle (11) is movable through the purification chamber (1) and extends to the outside of the purification chamber (1).

3. The oil mist collection and purification device for a CNC machining center according to claim 2, characterized in that: The air nozzle (8) is arranged at the bottom end of the rotating seat (2), and the air nozzle (8) is movably arranged to penetrate the purification chamber (1). The exhaust fan (3) is fixedly installed at the position of the air nozzle (8) at the bottom of the purification chamber (1).

4. The oil mist collection and purification device for a CNC machining center according to claim 3, characterized in that: A first sealing ring (12) is provided at the movable connection position between the driving handle (11) and the purification chamber (1), and a second sealing ring (13) is provided at the movable connection position between the air nozzle (8) and the purification chamber (1).

5. The oil mist collection and purification device for a CNC machining center according to any one of claims 1 to 4, characterized in that: A plurality of the air inlet holes (6) and the air exhaust holes (7) are provided. The plurality of air inlet holes (6) are arranged at intervals along the circumference of the purification chamber (1), and the plurality of air exhaust holes (7) are arranged at intervals along the circumference of the rotating seat (2).

6. The oil mist collection and purification device for a CNC machining center according to claim 5, characterized in that: A retaining ring (14) for shielding the exhaust hole (7) is fixedly provided on the outer edge of the top of the rotating seat (2), and a gap is provided between the bottom of the retaining ring (14) and the bottom of the purification chamber (1), and a semi-enclosed air passage (15) communicating with the exhaust hole (7) is formed between the retaining ring (14) and the rotating seat (2).

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