JPH077855U - Coolant supply device - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to prevent sludge from accumulating on the bottom of a tank and improve workability. In a coolant supply device configured to discharge the coolant discharged from a processing unit and filtered by a paper filter 4 to the processing unit again, the coolant in a tank 1 that stores the coolant is pumped up, and a nozzle 12 is used to supply the coolant to the tank 1. Pump 10 that ejects coolant along the wall surface of
And the suction port 14 located near the center bottom surface of the tank 1.
And a pump 13 for returning the coolant pumped up from the suction port 14 to the paper filter 4 again through the pipe 15 and filtering the coolant.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coolant supply device used for a grinder, for example.

[0002]

[Prior art]

 As a coolant supply device for a grinding machine or the like, for example, a coolant supply device has been proposed in which the coolant discharged from the processing section is filtered by a paper filter provided on the upper part of the tank and supplied again to the processing section. ing. The paper filter used is relatively coarse to prevent clogging, so sludge such as fine chips and abrasive particles that could not be collected by the paper filter settled on the bottom of the tank. accumulate.

[0003]

[Problems to be solved by the device]

 Therefore, in such a coolant supply device, it is necessary to periodically remove the coolant in the tank and scrape off the sludge accumulated on the bottom surface thereof, which is a cause of deterioration in workability.

In view of the above circumstances, an object of the present invention is to provide a coolant supply device capable of preventing sludge from accumulating on the bottom surface of a tank and improving workability.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the present invention, in a coolant supply device configured to discharge coolant from a processing unit, filter it with a filter, and supply the coolant again to the processing unit, a coolant in a tank that stores the coolant is used. Equipped with a vortex flow generator that pumps up the coolant and ejects the coolant along the wall of the tank, and a suction port that is located close to the center bottom surface of the tank. And a circulation means for filtering.

[0006]

[Action]

 Then, a vortex flow is generated in the tank, the sludge settled in the tank is collected in the central part of the bottom surface of the tank, and the sludge collected is returned to the filter again by the circulation means and filtered. Prevent the accumulation of sludge on the bottom of the tank.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. ◆ In the figure, 1 is a tank. 1a is a basin, which is arranged above the tank 1 and receives the coolant discharged from the processing section. A mesh belt conveyor 2 is rotatably arranged above the tank 1 and driven by a motor 3. Reference numeral 4 is a paper filter, which is rotatably supported above the tank 1 via a bracket 5 and is drawn out onto the mesh belt conveyor 2. A collection box 6 is arranged at one end of the tank 1. Reference numeral 7 denotes a float switch, which is activated when a float 7a arranged above the paper filter 4 above the tank 1 has risen by a predetermined amount.

Reference numeral 8 denotes a pump, which is arranged above the tank 1 and supplies the coolant from the tank 1 to the processing portion through a pipe 9. Reference numeral 10 denotes a pump, which is arranged above the tank 1, pumps up the coolant from the upper portion of the tank 1, and ejects the coolant along the wall surface of the lower portion of the tank 1 through the pipe 11 and the nozzle 12 into the tank 1. Generates a vortex. Reference numeral 13 denotes a pump, which sucks the coolant from a suction port 14 arranged near the center bottom surface of the tank 1 and returns the coolant to the basin 1a via a pipe 15.

With such a configuration, the coolant sent from the pump 8 and supplied to the processing portion through the pipe 9 is collected in the container 1 a and discharged onto the paper filter 4.

Of the chips and abrasive particles floating in the coolant discharged onto the paper filter 4, relatively large ones are captured by the paper filter 4, and the relatively small chips and abrasive particles are taken together with the coolant in the coolant tank. 1 drop. When the amount of chips and abrasive particles captured by the paper filter 4 increases, smaller chips and abrasive particles are supplemented, and clogging of the paper filter 4 progresses, and even smaller chips and abrasive grains can be supplemented. Coolant is accumulated on the paper filter 4. Then, the float 7a floats and activates the float switch 7. When the operation signal of the float switch 7 is received, the motor 3 is rotated for a certain period of time, the mesh belt conveyor 2 is moved, and the portion of the paper filter 4 that has captured the chips and abrasive grains is discharged to the collection box 6 and the paper filter 4 is discharged. Pull out the new part of 4 onto the mesh belt conveyor 2.

On the other hand, when the pump 10 is operated and the coolant is jetted from the nozzle 12 to generate a swirl in the tank 1, sludge settling on the bottom surface of the tank 1 is swirled to generate a swirl and a central portion of the tank 1. It is placed in the corner. At this time, as shown in FIG. 3, if the four corners of the tank 1 are arcuate surfaces, the amount of sludge accumulated at the corners of the tank 1 can be reduced. At the same time, by operating the pump 13, the sludge collected in the central portion of the tank 1 is pumped up together with the coolant from the suction port 14, returned to the container 1a via the pipe 15, and filtered again by the paper filter 4. Sludge in the coolant can be reduced.

[0012]

[Effect of device]

 As described above, according to the present invention, the coolant in the tank that stores the coolant is pumped up in the coolant supply device configured to supply the coolant discharged from the processing unit and filtered by the filter to the processing unit again. A circulation means for providing a vortex flow generating means for ejecting the coolant along the wall surface of the tank and a suction port arranged close to the center bottom surface of the tank, and for returning the coolant pumped up from the suction port to the filter again for filtration. Since the and are provided, it is possible to prevent the sludge from accumulating on the bottom surface of the tank and improve the workability.

[Brief description of drawings]

FIG. 1 is a plan view of a coolant supply device according to the present invention.

FIG. 2 is a front view of a coolant supply device according to the present invention.

FIG. 3 is a plan view showing a state inside the tank.

[Explanation of symbols]

 1 Tank 2 Mesh Belt Conveyor 4 Paper Filter 10 Pump 11 Pipe 12 Nozzle 13 Pump 14 Suction Port 15 Pump

Claims (1)

[Scope of utility model registration request] 1. A coolant supply device configured to discharge coolant from a processing unit, filter it with a filter, and supply the coolant to the processing unit again, by pumping up the coolant in a tank that stores the coolant, and along a wall surface of the tank. A vortex flow generating means for ejecting the coolant, and a suction port arranged in the vicinity of the center bottom surface of the tank are provided, and a circulation means for returning the coolant pumped up from the suction port to the filter again for filtration is provided. Coolant supply device.