JP2002321135A - Coolant cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coolant cleaning device which permits inside of a conduit for connection between a coolant exit on a circular coolant tank and a pump room with a coolant circulation pump, to clean easily. SOLUTION: The coolant cleaning device is provided with a circular coolant tank 14 which generates a vortex current 27 in coolant containing mainly cutting chips, a coolant exit 29 for flowing out coolant from the center of the circular coolant tank 14, a pump room 28 which provides a coolant pump 12 for sucking coolant flowed out, and a conduit which connects the coolant exit 29 with the pump room 28 in order to allow coolant to flow. A bottom plate section 32 on a bottom surface 33 of circular coolant tank 14 is provided with a cleaning window 34 for cleaning inside of the conduit 30, and a removable window cover 35 for closing the cleaning window 34 normally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
Also called a processing mother machine. The present invention relates to a coolant purifying apparatus for purifying coolant by separating chips and the like from a coolant mainly containing chips and the like flowing out of (1).

[0002]

2. Description of the Related Art In the industry, in order to improve the recyclability, when a coolant containing a coolant tank is processed by a coolant containing a chip or abrasive particles flowing out of a processing mother machine. There is a demand for a coolant cleaning apparatus that does not store chips, abrasive grains, or the like at the bottom of the coolant tank. FIG. 3 shows a magnetic separator and the processing of the coolant containing the remaining chips of the magnetic material in the case where the coolant flowing out of the processing mother machine contains the chips of the magnetic material. It is explanatory drawing which shows the front of the coolant cleaning apparatus which applied the Japanese Patent Application No. 2000-338331 which combined the circular coolant tank which performs by making a vortex generate | occur | produce a coolant.

When the coolant containing magnetic chips and the like flowing out of the processing mother machine flows into the magnetic separator 11, the magnetic chips in the coolant are adsorbed and separated by the magnet drum of the magnetic separator 11. Then, the coolant is processed, and the processed coolant flows out of the magnetic separator 11 and flows into the circular coolant tank 14 from the tangential direction of the circular coolant tank 14 along the inner wall of the circular coolant tank 14. The magnetic chips in the coolant collected by the magnetic separator 11 are discharged into the receiving box 21. The coolant in the circular coolant tank 14 flows out of the magnetic separator 11 and flows along the inner wall of the circular coolant tank 14 from a tangential direction of the circular coolant tank 14,
A part of the coolant discharged from the coolant pump 12 installed in the pump chamber 28 is
The vortex 27 is generated by the coolant jetted into the circular coolant tank 14 from the fifth coolant tank 5. Fine residual chips and the like in the coolant that could not be collected by the magnetic separator 11 continue to settle while rotating together with the coolant due to the vortex 27, and the circular coolant tank 14
Is accumulated on the bottom surface 33 of the central portion of the. Round coolant tank 1
4 is provided with a coolant outlet 29 at the center bottom surface 33, and fine residual chips accumulated on the center bottom surface 33 of the circular coolant tank 14 are removed from the coolant outlet 29.
Then, the coolant is sucked together with the coolant by the coolant pump 12 provided on the pump chamber 28 joined by the gutter 30, is again pressure-fed to the magnetic separator 11, and is reprocessed. This is repeated to clean the coolant. . Circular coolant tank 14 from coolant discharge nozzle 25
The strength of the vortex 27 can be adjusted by adjusting the flow rate of the coolant jetted into the inside. A part of the outer wall of the circular coolant tank 14 is
4 is provided with a clean tank 22 provided with a coolant pump 13 for pressure-feeding the cleaned coolant to the processing mother machine, and a circular coolant tank 14 and a clean tank 22 are provided.
Is communicated with the cutout hole 31 of the underflow structure.

[0004] When the working mother machine contains abrasive grains and the like together with the chips of the magnetic material in the coolant discharged from the working mother machine like a grinder, the vortex in the circular coolant tank is given. Abrasive particles in the coolant accumulated in the center of the circular coolant tank,
Alternatively, the remaining chips of the magnetic substance are removed by a coolant pump provided on a pump chamber joined by a coolant outlet installed at the bottom of the center part of the circular coolant tank and a gutter, and the remaining abrasive particles or magnetic substance is removed. The coolant containing the swarf is drawn out from the circular coolant tank by suction, sent to an abrasive collection device with a built-in filter, etc., and after the abrasive is processed by a filter, the coolant is sent again into the magnetic separator. The remaining chips are reprocessed in the above, and this circulation is repeated to clean the coolant. (Not shown)

[0005]

SUMMARY OF THE INVENTION Claim 1 according to the present invention
Compared with the above-described method, it is possible to easily clean the inside of the gutter connecting the coolant outlet provided at the center bottom surface of the circular coolant tank and the pump chamber provided with the coolant circulation pump. An object of the present invention is to provide a coolant cleaning apparatus that employs a novel method on the bottom surface of a circular coolant tank.

[0006]

According to a first aspect of the present invention, there is provided a coolant cleaning apparatus for generating a vortex in a coolant mainly containing chips and the like which is discharged from a processing mother machine and stored in a tank. A coolant tank, an outlet for flowing out a coolant containing chips and the like in the circular coolant tank from a central bottom surface of the circular coolant tank, and a coolant pump for sucking coolant flowing out from the outlet. In a coolant purifying apparatus provided with a pump chamber and a gutter for connecting a coolant between the outlet and the pump chamber at a lower portion of the bottom of the circular coolant tank, the bottom of the circular coolant tank has a bottom plate. A cleaning window for cleaning the inside of the gutter is provided on a bottom plate portion of the circular coolant tank having a gutter at a lower portion, and For closing 掃窓 always it is characterized in that it comprises a removable cleaning windows lid capable.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A coolant cleaning apparatus according to the present embodiment is a coolant cleaning apparatus for processing a coolant containing chips and the like flowing out of a processing mother machine. Note that the coolant cleaning apparatus according to the present embodiment collects chips or abrasives at the bottom of the coolant tank when processing the chips that have flowed out of the processing mother machine or the coolant containing abrasives. No coolant cleaning equipment is desired. 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 example. The present invention relates to a coolant cleaning apparatus, and to an improvement related to a technique applied by the present applicant in Japanese Patent Application No. 2000-338331. A coolant cleaning device according to the present embodiment in the case where the 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.

In a case where the chips contained in the coolant flowing out of the processing mother machine are magnetic materials, the coolant cleaning apparatus according to the present embodiment is provided with a magnetic separator 11, a coolant pump 12 for circulating coolant, and a processing unit. A circular coolant tank 1 having two coolant pumps, a coolant pump 13 for pumping clean coolant to a processing mother machine.
4 and the like.

The coolant containing magnetic chips and the like flowing out of the processing mother machine is first flowed into the magnetic separator 11 to process the magnetic chips in the coolant. The magnetic separator 11 rotates a rotating cylinder 15 having a fixed magnet built in a non-magnetic rotating cylinder by an electric motor 16, and a flow path in which a predetermined gap is formed between the rotating cylinder 15 and a semi-cylindrical bottom plate 17. The processing is performed by passing a coolant containing chips of a magnetic material through the inside of the rotating cylinder and adsorbing and separating sludge of the magnetic material in the coolant on the outer periphery of the rotating cylinder 15. The treated coolant that has flowed out of the magnetic separator 11 flows into the circular coolant tank 14 from the tangential direction along the inner wall of the circular coolant tank 14. The magnetic sludge adsorbed on the outer periphery of the rotating cylinder 15 is pressed by the squeezing roller 19 to be dehydrated, scraped off by the scraping plate 20, and discharged into the receiving box 21.

A pump chamber 28 provided on the outer wall of the circular coolant tank 14 is provided with a coolant pump 12 for circulating coolant, and a clean tank 22 provided on the outer wall of the circular coolant tank 14 is also cleaned. A coolant pump 13 is provided for pumping the coolant to the working mother machine. The pump chamber 28 provided with the coolant pump 12 for circulating the coolant is joined by a gutter 30 to a coolant outlet 29 provided at a lower part 33 of the center of the circular coolant tank 14 at a lower part of the pump chamber 28. The coolant pump 12 for coolant circulation provided in the pump chamber 28 pumps up the coolant in the pump chamber 28. Coolant pump 12 for coolant circulation
However, by pumping the coolant in the pump chamber 28, the coolant in the circular coolant tank 14 flows from the coolant outlet 29 into the pump chamber 28 via the gutter 30, and the pump from the coolant outlet 29 in the gutter 30. The flow of the coolant into the chamber 28 becomes a suction force for sucking the coolant in the circular coolant tank 14 to the outside of the circular coolant tank 14. A left-handed vortex 27 is generated in the northern hemisphere over the top surface, and the remaining chips in the coolant that could not be collected by the magnetic separator 11 are rotated together with the coolant by the left-handed vortex 27 in the circular coolant tank 14. While gradually sinking,
It is collected on the bottom 33 at the center of the circular coolant tank 14.

Due to the vortex 27 generated in the circular coolant tank 14, the chips remaining in the coolant accumulated on the central bottom surface 33 of the circular coolant tank 14 and unable to be collected by the magnetic separator 11 are circular. Coolant pump for coolant circulation, which is fed from a coolant outlet 29 provided in a central bottom surface 33 of the coolant tank 14 to a pump chamber 28 joined to the coolant outlet 29 by a gutter 30 and provided in the pump chamber 28 The refrigerant is sucked together with the coolant in the circular coolant tank 14 by 12 and sent to the magnetic separator 11 again, and this circulation is repeated.

The circular coolant tank 14 has a bottom surface 33.
A cleaning window 34 for cleaning the inside of the gutter 30 is provided on the bottom plate 32 of the circular coolant tank 14 having the gutter 30 provided below the bottom plate 32, and the cleaning window 34 is always removed. The cleaning window cover 35 is provided.

[0013] A part of the coolant is supplied to the inside of the circular coolant tank 14 through a coolant discharge nozzle 25 provided in the tangential direction of the circular coolant tank 14 by a T-shaped connecting pipe 24 provided in the middle of the discharge pipe 23 of the coolant pump 12. The coolant that has been jetted out of the magnetic separator 11 or the coolant that has been ejected to the circular coolant tank 14
The vortex 27 is amplified by the coolant flowing tangentially along the inner wall of the vortex, and the effect of the vortex 27 is increased. The flow rate of the coolant ejected from the coolant discharge nozzle 25 can be adjusted by the adjustment valve 26.

On a part of the outer wall of the circular coolant tank 14, a clean tank in which a coolant pump 13 for feeding the coolant on the outer peripheral surface of the circular coolant tank 14 having the highest cleanliness in the circular coolant tank 14 to the processing mother machine is installed. 22 is provided, and the circular coolant tank 14 and the clean tank 22 communicate with each other through a notch 31 having an underflow structure.

Although the present embodiment has been described in connection with the case where the chips contained in the coolant flowing out of the machining base machine are magnetic substances, the machining base machine is added to the coolant cleaning apparatus of this embodiment by adding an abrasive particle collecting device. However, like a grinder, it is possible to cope with the case where the coolant that has flowed out of the processing mother machine contains abrasive grains etc. together with the chips of the magnetic material,
In addition, by replacing the magnetic separator 11 in the present embodiment with a filter device or the like, it is possible to cope with the case where the chips that have flowed out together with the coolant from the processing mother machine are non-magnetic materials. In addition, as described above, the device of the present invention is not limited to the embodiment described above and shown in the drawings, and can be appropriately changed without departing from the gist.

[0016]

According to the first aspect of the present invention, a cleaning window for cleaning the inside of the gutter is provided on the bottom plate of the circular coolant tank having a gutter below the bottom plate on the bottom surface of the circular coolant tank, and the cleaning is performed. According to the coolant cleaning device having a removable cleaning window cover for constantly closing the window, the coolant outlet provided at the lower portion of the center bottom surface of the circular coolant tank is different from the conventional coolant cleaning device. And a new coolant cleaning apparatus that can easily clean chips and the like remaining on a gutter connecting the pump chamber and the pump chamber. Further, in addition to the above effects, effects such as prevention of coolant decay, reduction of running costs, and the like are conceivable.For coolants such as industrial machines that are repeatedly used, by maintaining cleanliness and extending the service life, the machining base machine is improved. The performance can be maintained and the overall operation cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing the front of a coolant cleaning apparatus of the present invention.

FIG. 2 is an explanatory view showing a plane of the coolant cleaning device of the present invention.

FIG. 3 is an explanatory view showing the front of a conventional coolant cleaning device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Magnetic separator 12 ... Coolant pump (For coolant circulation) 13 ... Coolant pump 14 ... Circular coolant tank (For clean coolant pressure feeding) 15 ... Rotating cylinder 16 ... Electric motor 17. ··· Bottom plate 18 ··································································································・ Coolant discharge nozzle 26 ・ ・ ・ Adjustment valve 27 ・ ・ ・ Swirl 28 ・ ・ ・ Pump chamber 29 ・ ・ ・ Coolant outlet 30 ・ ・ ・ Gutter 31 ・ ・ ・ Cut hole 32 ・ ・ ・ Bottom plate 33 ・ ・ ・ Bottom 34: Cleaning window 35: Cleaning window lid

Claims (1)

[Claims] 1. A cylindrical coolant tank for generating a vortex in a coolant mainly containing chips and the like discharged from a machine tool or the like and stored in a tank; An outlet that is provided on a central bottom surface and allows the coolant containing chips and the like in the circular coolant tank to flow out from the central bottom surface, and for sucking the coolant that flows out of the outlet. A pump chamber provided with a coolant pump; and a coolant purifying device having a gutter for connecting a coolant between the outlet and the pump chamber at a lower portion of a bottom surface of the circular coolant tank so that the coolant can flow therethrough. At the bottom of the coolant tank, the bottom of the bottom plate serves as the gutter. A cleaning window for cleaning is provided,
A coolant cleaning apparatus further comprising a removable cleaning window cover for constantly closing the cleaning window.