JP2004268244A - Coolant cleaning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coolant cleaning device of adopting a novel method for staying no chip in a bottom part of all coolant tanks for constituting the coolant cleaning device in the coolant cleaning device for processing a coolant including chips of a magnetic substance flowed out of an industrial machine such as a machine tool, and adjusting oil temperature of the coolant. <P>SOLUTION: This coolant cleaning device is equipped with a magnetic separator 11, a bottomed cylindrical primary circular coolant tank 13 for generating a vortex flow 35 in the coolant, and an oil temperature automatic adjuster 19, and is equipped with a bottomed cylindrical secondary circular coolant tank 15 for generating a vortex flow 42 in the coolant, respective coolant sucking means for sucking the coolant in the respective circular coolant tanks, and a coolant pump 16, and is equipped with a primary clean tank 17 communicated with the primary circular coolant tank 13, and a coolant pump 22, and is provided with a secondary clean tank 23 communicated with the secondary circular coolant tank 15. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
[Industrial applications]
The present invention relates to a coolant cleaner that separates chips and the like from a coolant that mainly contains chips after processing and that has flowed out from a machine tool or the like (hereinafter also referred to as a processing mother machine) to clean the coolant. Equipment related.
[0002]
[Prior art]
In the industry, in order to improve the recyclability, when processing coolant containing chips etc. flowing out of the processing mother machine with a coolant cleaning device equipped with a coolant tank, chips such as chips on the bottom of the coolant tank There is a demand for a coolant cleaning device that does not accumulate water.
[0003]
FIG. 3 shows a process for processing magnetic chips and the like contained in the coolant flowing out of the processing mother machine.
A dirty tank 52 having a scraper conveyor 51, a magnetic separator 11, a clean tank 53 having an automatic oil temperature controller 19, and a dirty pump for pumping coolant in the dirty tank 52 to the magnetic separator 11. FIG. 5 is a perspective view showing an example of a conventionally provided coolant cleaning device including a clean pump 55 for pumping coolant in a clean tank 53 to a processing mother machine by pressure.
[0004]
The coolant discharged from the processing mother machine and containing magnetic chips and the like flows into the dirty tank 52 having the scraper conveyor 51 from the inflow port 56.
[0005]
In the dirty tank 52, coarse chips and the like in the coolant are settled on the bottom surface of the dirty tank 52 and scraped out by the scraper conveyor 51 into a sludge box 57 provided outside the dirty tank 52.
[0006]
The coolant containing fine chips and the like in the dirty tank 52 is pressure-fed to the magnetic separator 11 by the dirty pump 54 installed on the dirty tank 52 having the scraper conveyor 51, and the fine chips in the coolant are Separation processing such as is performed.
[0007]
The coolant contained in the coolant, which has been subjected to the separation processing of the magnetic chips and the like, flows into the clean tank 53, and has a structure in which the cooling coil 18 installed on the clean tank 53 is immersed in the coolant. After being cooled by the automatic temperature controller 19, it is pressure-fed to the working mother machine by the clean pump 55.
[0008]
The coolant level management of the dirty tank 52 and the clean tank 53 is performed by float switches 58 and 59 provided in the respective tanks.
[0009]
[Problems to be solved by the invention]
Claims 1 according to the present invention, when compared with the above-described method, when performing the processing of the coolant containing chips and the like flowing out of the processing mother machine by the coolant cleaning device,
It is an object of the present invention to provide a coolant cleaning apparatus that employs a novel system that does not accumulate chips or the like at the bottom of any coolant tank that constitutes a coolant cleaning apparatus.
[0010]
A second object of the present invention is to reduce the space for installing a coolant cleaning device as compared with a conventional coolant cleaning device.
[0011]
A third object of the present invention is to maintain a constant coolant level in a coolant tank provided with an automatic oil temperature regulator having a structure in which a cooling coil is immersed in a coolant.
[0012]
[Means for Solving the Problems]
The coolant cleaning device according to claim 1 is
A chip processing device for processing chips in the coolant, which has flowed out of a machine tool,
A primary circular coolant tank with a bottomed cylindrical shape for generating a vortex in a coolant containing fine chips and the like, which is discharged from a chip processing device and stored in a tank,
Equipped with an oil temperature automatic adjuster having a structure in which the cooling coil is immersed in the coolant, and a secondary circular coolant tank having a bottomed cylindrical shape,
From the center of the bottom surface of each of the primary circular coolant tank and the secondary circular coolant tank, the primary circular coolant tank, and the respective coolant suction means for sucking the coolant containing the chips and the like in the secondary circular coolant tank, ,
Equipped with a coolant pump mounted on a part of the outer peripheral surface of the cylindrical side plate of the primary circular coolant tank and for pumping the coolant filtered in the primary circular coolant tank to the secondary circular coolant tank. A primary clean tank that is communicated with a notch of an underflow structure provided in the cylindrical side plate,
Equipped with a coolant pump that is attached to a part of the outer peripheral surface of the cylindrical side plate of the secondary circular coolant tank and that pumps the coolant filtered in the secondary circular coolant tank to machine tools, etc. And a secondary clean tank which is communicated between the gaps by a notched hole of an underflow structure provided in the cylindrical side plate.
[0013]
The coolant cleaning apparatus according to claim 2 is
The secondary circular coolant tank is provided above the primary circular coolant tank.
[0014]
The coolant cleaning device according to claim 3 is
The present invention is characterized in that the coolant that overflows from the overflow port of the secondary circular coolant tank always flows into the primary circular coolant tank.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
The coolant cleaning device according to the present embodiment is a coolant cleaning device that performs processing of a coolant containing chips and the like flowing out of a processing mother machine.
In the coolant cleaning device according to the present embodiment, a coolant cleaning device that does not accumulate chips or the like at the bottom of a coolant tank when processing a coolant containing chips or the like flowing out of a processing mother machine is demanded. ing.
[0016]
Hereinafter, typical embodiments of the present invention will be described with reference to the drawings.
However, the dimensions, shapes, materials, relative positions, and the like of the components described in this embodiment are not intended to limit the scope of the present invention only to them unless otherwise specified. It is only an illustrative example.
[0017]
A coolant cleaning device according to the present embodiment when chips contained in the coolant flowing out of the processing mother machine are magnetic materials will be described with reference to FIGS. 1 and 2.
[0018]
When the chips contained in the coolant flowing out of the processing mother machine are magnetic substances, the coolant cleaning apparatus according to the present embodiment includes a magnetic separator 11,
A primary circular coolant tank 13 having a bottomed cylindrical shape equipped with an underwater coolant pump 12 for coolant circulation, and a cylindrical side plate 14 of the primary circular coolant tank 13, which pumps coolant to a secondary circular coolant tank 15. A primary clean tank 17 provided with a coolant pump 16 for
An oil temperature automatic adjuster 19 having a structure in which a cooling coil 18 is immersed in a coolant, a secondary circular coolant tank 15 having a bottomed cylindrical shape equipped with a coolant pump 20 for circulating a coolant, and a secondary circular coolant tank 15 A secondary clean tank 23 provided on the cylindrical side plate 21 and having a coolant pump 22 for pumping the processed clean coolant to the processing mother machine;
Each of the primary circular coolant tank 13 and the secondary circular coolant tank 15 includes a liquid level switch 24, 25 for controlling the liquid level of the coolant in the coolant tank.
[0019]
The coolant containing magnetic chips and the like flowing out of the processing mother machine is first flowed into the magnetic separator 11, and the magnetic chips in the coolant are filtered.
[0020]
The magnetic separator 11 rotates a rotating cylinder 26 having a fixed magnet built in a non-magnetic rotating cylinder by an electric motor 27, and forms a flow path in which a predetermined gap is formed between the rotating cylinder 26 and a semi-cylindrical bottom plate 28. The processing is performed by allowing a coolant containing magnetic chips to pass through the inside of the cylinder 29 and adsorbing and separating sludge of the magnetic substance in the coolant on the outer periphery of the rotary cylinder 26. The treated coolant that has flowed out of the magnetic separator 11 flows into the primary circular coolant tank 13 from the tangential direction along the inner wall 30 of the primary circular coolant tank 13.
[0021]
The magnetic sludge adsorbed on the outer periphery of the rotary cylinder 26 is pressed by the squeezing roller 31 to be dehydrated, scraped off by the scraping plate 32, and discharged into the receiving box 33.
[0022]
In the coolant in the center of the tank inner bottom surface 34 of the primary circular coolant tank 13, the underwater coolant pump 12 for circulating the coolant and the primary clean tank 17 installed on the outer peripheral surface of the cylindrical side plate 14 of the primary circular coolant tank 13 are provided. A coolant pump 16 for pumping coolant filtered in the primary circular coolant tank 13 into the secondary circular coolant tank 15 is provided.
[0023]
The vortex 35 is generated in the primary circular coolant tank 13 by the coolant flowing out of the magnetic separator 11 and flowing into the primary circular coolant tank 13 from the tangential direction along the inner wall 30 of the primary circular coolant tank 13. The remaining chips and the like in the coolant that could not be collected by the magnetic separator 11 accumulate at the center of the tank inner bottom surface 34 of the primary circular coolant tank 13 by the vortex 35, and the tank of the primary circular coolant tank 13 The underwater coolant pump 12 provided at the center of the inner bottom surface 34 sucks together with the coolant and sends it to the magnetic separator 11 under pressure, so that the coolant is reprocessed.
[0024]
In addition, the tank inner bottom surface 34 of the primary circular coolant tank 13 may have an inclination 50 from the lower end of the cylindrical side surface 14 of the primary circular coolant tank 13 toward the center of the tank inner bottom surface 34.
[0025]
A T-connection pipe 37 is provided in the middle of the discharge pipe 36 of the underwater coolant pump 12, and a part of the coolant discharged from the underwater coolant pump 12 is provided in a tangential direction of the primary circular coolant tank 13. The vortex 35 is jetted into the primary circular coolant tank 13 through the discharge nozzle 38 and is amplified by the vortex 35 in combination with the coolant flowing out of the magnetic separator 11 and flowing into the primary circular coolant tank 13. The effect is increased.
[0026]
The strength of the vortex 35 can be adjusted by adjusting the flow rate of the coolant ejected from the coolant discharge nozzle 38 by the flow rate adjustment valve 39.
[0027]
At a part of the outer peripheral surface of the cylindrical side plate 14 of the primary circular coolant tank 13, the coolant on the outer peripheral surface of the primary circular coolant tank 13 having the highest cleanliness in the primary circular coolant tank 13 is fed into the secondary circular coolant tank 15. A primary clean tank 17 provided with a coolant pump 16 is provided, and the primary circular coolant tank 13 and the primary clean tank 17 communicate with each other through a cutout hole 40 having an underflow structure.
The primary clean tank 17 is provided with a liquid level switch 24 for automatically confirming a shortage of coolant.
[0028]
The coolant in the primary clean tank 17 installed on a part of the outer peripheral surface of the cylindrical side plate 14 of the primary circular coolant tank 13 and sent into the secondary circular coolant tank 15 by the coolant pump 16 is replaced with the secondary circular coolant tank 15. The coolant is jetted into the secondary circular coolant tank 15 through a coolant discharge nozzle 41 installed in the tangential direction of the tangential direction, and a vortex 42 is also generated in the secondary circular coolant tank 15.
[0029]
The pump chamber 43 provided with the coolant pump 20 for circulating the coolant is connected to a coolant outlet 45 provided at the lower part of the pump chamber 43 at the center of the bottom surface 44 of the secondary circular coolant tank 15 by a gutter 46. Then, the coolant pump 20 for circulating the coolant provided in the pump chamber 43 pumps the coolant in the pump chamber 43.
[0030]
The coolant in the secondary circular coolant tank 15 flows from the coolant outlet 45 through the gutter 46 into the pump chamber 43 by the coolant pump 20 for coolant circulation pumping the coolant in the pump chamber 43,
The flow of the coolant in the gutter 46 from the coolant outlet 45 to the pump chamber 43 becomes a suction force for sucking the coolant in the secondary circular coolant tank 15 to the outside of the secondary circular coolant tank 15.
[0031]
Due to the suction force, a left-handed vortex 42 is generated in the northern hemisphere from the coolant outlet 45 at the center of the bottom surface 44 of the secondary circular coolant tank 15 to the upper surface of the liquid surface of the secondary circular coolant tank 15 (Coriolis force). ,
The vortex 42 is amplified in combination with the coolant jetted into the secondary circular coolant tank 15 through the coolant discharge nozzle 41 installed in the tangential direction of the secondary circular coolant tank 15, and the remaining chips in the coolant are removed. By the left-handed swirl 42 in the secondary circular coolant tank 15, the sedimentation continues gradually while rotating with the coolant, and accumulates at the center of the bottom surface 44 of the secondary circular coolant tank 15. The flow rate of the coolant ejected from the coolant discharge nozzle 41 can be adjusted by the flow rate adjustment valve 47.
[0032]
Due to the left-handed swirl 42 generated in the secondary circular coolant tank 15, chips remaining in the coolant accumulated at the center of the bottom surface 44 of the secondary circular coolant tank 15 are removed from the central portion of the bottom surface 44 of the secondary circular coolant tank 15. The coolant is supplied from a coolant outlet 45 provided in the pump chamber 43 to a pump chamber 43 joined to the coolant outlet 45 by a gutter 46, and the coolant in the pump chamber 43 is provided by the coolant pump 20 for coolant circulation provided in the pump chamber 43. , And is sent to the magnetic separator 11 again, and this circulation is repeated.
[0033]
On the secondary circular coolant tank 15, an oil temperature automatic adjuster 19 having a structure in which the cooling coil 18 is immersed in the coolant in the secondary circular coolant tank 15 is provided, and the coolant in the secondary circular coolant tank 15 is Cooled to any temperature.
[0034]
A part of the outer peripheral surface of the cylindrical side plate 21 of the secondary circular coolant tank 15 is formed on the outer peripheral surface of the secondary circular coolant tank 15 having the highest cleanliness in the secondary circular coolant tank 15, similarly to the primary circular coolant tank 13. A secondary clean tank 23 provided with a coolant pump 22 for feeding the coolant into the processing mother machine is provided. The secondary circular coolant tank 15 and the secondary clean tank 23 communicate with each other through a cutout hole 48 having an underflow structure. I have.
[0035]
The secondary circular coolant tank 15 provided with the automatic oil temperature controller 19 having a structure in which the cooling coil 18 is immersed in the coolant is provided above the primary circular coolant tank 13,
The cooled coolant that has overflowed from the overflow port 49 of the secondary circular coolant tank 15 always flows into the primary circular coolant tank 13. As a result, the coolant level in the secondary circular coolant tank 15 can be kept constant at all times, and the coolant in the primary circular coolant tank 13 can also be cooled.
The secondary clean tank 23 is provided with a liquid level switch 25 for confirming overflow.
[0036]
By changing the magnetic separator 11 of this embodiment to a filter device or the like, it is possible to cope with the case where the chips contained in the coolant flowing out of the processing mother machine are non-magnetic chips. . (Not shown)
In addition, by using a chip processing device as a device combining a magnetic separator and a filter device, even when magnetic and non-magnetic chips are mixed and contained in the coolant flowing out of the processing mother machine. Can respond. (Not shown)
[0037]
In addition, as described above, the device of the present invention is not limited to the embodiment described above and shown in the drawings, but can be appropriately changed without departing from the gist.
[0038]
【The invention's effect】
The magnetic separator according to claim 1, a bottomed primary circular coolant tank for generating a vortex in the coolant, a bottomed primary circular coolant tank equipped with an automatic oil temperature adjusting device, and each circular shape. Each of the coolant suction means for sucking the coolant in the coolant tank, a primary clean tank equipped with a coolant pump and communicating with the primary circular coolant tank, and a coolant pump equipped with a secondary circular coolant tank According to the coolant cleaning device provided with the secondary cleaning tank,
A novel coolant cleaning device can be provided that can significantly reduce the frequency of cleaning the coolant tank constituting the coolant cleaning device as compared with the conventional coolant cleaning device.
[0039]
According to the coolant cleaning device according to claim 2, wherein the secondary circular coolant tank is provided on an upper part of the primary circular coolant tank.
It is possible to provide a novel coolant cleaning device that can save space for the coolant cleaning device.
[0040]
According to the coolant cleaning device according to claim 3, the coolant that overflows from the overflow port of the secondary circular coolant tank equipped with the oil temperature automatic adjuster and has a structure that always flows into the primary circular coolant tank is provided.
The control of the coolant level in the secondary circular coolant tank is simplified, and the coolant in the primary circular coolant tank can also be cooled.
[0041]
In addition to the above effects, it is also possible to prevent the deterioration of the coolant and to reduce the running cost. And can contribute to a reduction in operating costs as a whole.
[Brief description of the drawings]
FIG. 1 is an explanatory front view showing an example of a coolant cleaning device of the present invention.
FIG. 2 is an explanatory plan view showing an example of a coolant cleaning device of the present invention.
FIG. 3 is a perspective view showing an example of a conventional coolant cleaning device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Magnetic separator 12 ... Underwater coolant pump 13 ... Primary circular coolant tank 14 ... Cylindrical side plate 15 ... Secondary circular coolant tank 16 ... Coolant pump 17 ... Primary clean Tank 18 ... Cooling coil 19 ... Automatic oil temperature controller 20 ... Coolant pump 21 ... Cylindrical side plate 22 ... Coolant pump 23 ... Secondary clean tank 24 ... Liquid level switch 25 liquid level switch 26 rotating cylinder 27 electric motor 28 bottom plate 29 flow path 30 inner wall 31 squeezing roller 32 scraping plate 33 Receiving box 34 ... Bottom 35 ... Swirl 36 ... Discharge pipe 37 ... T-connection pipe 38 ... Coolant discharge nozzle 39 ... Flow rate adjusting valve 40 ... Cut hole 41 ... ·Coolant Outflow nozzle 42 ・ ・ ・ Swirl 43 ・ ・ ・ Pump chamber 44 ・ ・ ・ Bottom 45 ・ ・ ・ Coolant outlet 46 ・ ・ ・ Gutter 47 ・ ・ ・ Flow control valve 48 ・ ・ ・ Cut hole 49 ・ ・ ・ Overflow port 50: Incline 51: Scraper conveyor 52: Dirty tank 53: Clean tank 54: Dirty pump 55: Clean pump 56: Inflow port 57: Sludge box 58・ Float switch 59 ・ ・ ・ Float switch

Claims (3)

A chip processing device for processing chips in coolant that has flowed out of a machine tool or the like,
A primary circular coolant tank with a bottomed cylindrical shape, for generating a vortex in coolant containing fine chips and the like, which is discharged from the chip processing device and stored in the tank,
Equipped with an oil temperature automatic adjuster having a structure in which the cooling coil is immersed in the coolant, and a secondary circular coolant tank having a bottomed cylindrical shape,
Each of the primary circular coolant tank, and the secondary circular coolant tank, for suctioning coolant containing chips and the like in the secondary circular coolant tank from the center of the bottom surface of each of the primary circular coolant tanks, Coolant suction means,
The primary circular coolant tank is provided with a coolant pump mounted on a part of the outer peripheral surface of the cylindrical side plate of the primary circular coolant tank and for pumping the coolant filtered in the primary circular coolant tank to the secondary circular coolant tank. Between the tank, a primary clean tank communicated with a cutout hole of an underflow structure provided in the cylindrical side plate,
Equipped with a coolant pump mounted on a part of the outer peripheral surface of the cylindrical side plate of the secondary circular coolant tank and for pumping coolant filtered in the secondary circular coolant tank to a machine tool or the like, A coolant cleaning device, comprising: a secondary clean tank that communicates with a coolant tank by a notched hole of an underflow structure provided in the cylindrical side plate. In claim 1,
The secondary circular coolant tank is provided above the primary circular coolant tank. In claim 1 and claim 2,
A coolant purifying apparatus, wherein the coolant that overflows from an overflow port of the secondary circular coolant tank always flows into the primary circular coolant tank.

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