JP3211849U - Automatic dilution device with level gauge - Google Patents

Abstract

[PROBLEMS] To detect a liquid level of cutting oil or the like contained in a drum can having a deep liquid level, and to detect a state in which there is almost no residual liquid of the cutting oil, and a liquid level gauge on the raw liquid side A fully automatic diluting device for a drum can is provided. A weight 5 heavier than a buoyancy acting on a float 3 is provided at the bottom of a liquid level gauge 1. The weight fixes the liquid level gauge to the bottom of the drum 2. The lead wire 7 extends vertically and is clamped to the lid of the drum can by a fixing means 8 to take out a signal. When the liquid level 9 is above the float 3, the float floats to a position where it stops at the stopper 6, the reed switch 4 is OFF, and as the stock solution in the drum can be consumed, the liquid level drops and the remaining liquid The liquid level gauge is configured so that the reed switch is turned on at the position of the liquid level 9 ′ where there is no gap. By adding this level gauge to the stock side drum of the conventional diluting device, a fully automatic diluting device can be realized. [Selection] Figure 1

Description

  The present invention relates to a diluting device that sucks a raw liquid by the ejector effect of a main liquid and mixes it with water, discharges the mixed liquid to an attached tank of a processing machine, and automatically replenishes the mixed liquid.

Currently, a diluting device that is actually used is a coolant diluting device that mixes and dilutes the cutting fluid, which is the stock solution, with water at a predetermined concentration, and an operator can obtain this type of diluting device. In many cases, the tank attached to the processing machine is visually replenished.
Alternatively, only the liquid level of the liquid mixture on the tank side is detected, and when the water level of the tank decreases, the electromagnetic valve is opened, the liquid mixture of a predetermined concentration is supplied to the tank with a diluting device, and the liquid level rises, There is also an automatic replenishment device that closes the solenoid valve when the tank is filled with the liquid mixture.

The coolant liquid is a mixture of water and cutting oil. When processing metal, wipe it with a cutting tool, cutting tool and cutter to increase the cutting speed and maintain cooling and accuracy. Evaporates and the mixed liquid decreases, so it is necessary to replenish with a coolant liquid having a relatively low concentration.

However, when a person refills with a hand-held diluting device, the liquid mixture may inadvertently overflow from the tank. Further, in the automatic replenishing device as described above, the drum can and the Pierre can on the stock solution side are emptied, and only water is discharged, and the concentration of the mixed solution in the tank is extremely lowered, which sometimes hinders processing.

  Actually, the liquid level of the cutting oil on the raw liquid side is not detected at all. The reason for this is that it is difficult to detect the deep oil level of drums, which are tanks of cutting oil, the liquid level gauge is expensive because of the long stroke, and the liquid level is detected up to the bottom. This is because the remaining liquid is inevitably produced.

JP2014009670 JP2014-1000068 JP2012-106787

  By detecting the level of cutting oil in a drum that has a deep liquid level, and detecting a state where there is almost no residual liquid of cutting oil, and further providing a level gauge with a simple structure, A fully automatic diluter with side liquid level detection is possible.

In order to achieve the above object, a weight 5 heavier than the buoyancy acting on the float 3 is provided at the bottom of the liquid level gauge 1. While maintaining the vertical posture by the weight of the weight 5, the liquid level gauge 1 is fixed to the bottom of the drum can 2. The lead wire 7 extends vertically and is clamped to the lid of the drum can 2 by a fixing means 8 so as not to be loosened, and serves to take out a signal. When the stock solution in the drum can is sufficient and the liquid level 9 is above the float 3, the float 3 floats to a position where it stops at the stopper 6 by buoyancy, and the reed switch 4 is turned off. As the stock solution in the drum is consumed, the liquid level 9 is lowered, the float 3 is further lowered from the bottom of the weight 5 and the liquid level is 9 ', and the reed switch 4 is turned on. I will provide a.
Completely automatic dilution device is configured by adding a dilution level device, concentration setter, two solenoid valves, and a liquid level gauge on the liquid mixture side to the control panel. To do.

By installing a level gauge with a simple structure in the mixed solution tank and the stock solution side drum, etc., the mixed solution will not unintentionally overflow from the tank, and when the stock solution is exhausted, water can be supplied quickly. An inexpensive fully automatic diluter that can be stopped can be provided.
In addition, the use of this liquid level gauge is economical because the remaining stock solution of the drum can is reduced. Further, when the stock solution in the drum can is emptied, the signal stops supplying the mixed solution to the tank attached to the processing machine, so that only the water is not released and the concentration of the mixed solution can be maintained. .
Even if the tank on the stock solution side is deeper than the drum can, the liquid level can be detected simply by extending the lead wire, so that it can be manufactured at low cost.

FIG. 1 shows a liquid level gauge of the present invention and explains its operation. FIG. 2 shows an embodiment of a fully automatic dilution apparatus using the liquid level gauge. . FIG. 3 shows a control circuit for receiving a signal from the liquid level gauge according to the present invention.

 Provided is a fully automatic dilution device for a coolant liquid having a simple and inexpensive liquid level gauge.

FIG. 1 shows a liquid level gauge of the present invention and explains its operation. A weight 5 heavier than the buoyancy acting on the float 3 is provided at the bottom of the level gauge 1. While maintaining the vertical posture with the weight of the weight 5, the level gauge 1 is fixed to the bottom 2 a of the drum 2. The lead wire 7 extends vertically and is clamped to the lid of the drum can 2 by the fixing means 8 so as not to be loosened, and a signal is taken out. When the stock solution in the drum can is sufficient and the liquid level 9 is above the float 3, the float 3 floats to a position where it stops at the stopper 6 by buoyancy, and the reed switch 4 is turned off. As the stock solution in the drum is consumed, the liquid level 9 is lowered, the float 3 is further lowered from the bottom of the weight 5 and the liquid level is 9 ', and the reed switch 4 is turned on. Is configured.

  FIG. 2 shows an embodiment of a fully automatic dilution apparatus using the liquid level gauge. An electromagnetic valve 16 is arranged at the entrance of the diluting device 17 having the concentration setting device 18, and opens and closes the water supply 19 according to a command from the control panel 20. The outlet of the diluter is configured to supply the mixed liquid generated at the concentration set by the concentration setter 18 to the mixed liquid tank 13 at a suitable time with a long hose 14. The liquid level gauge 10 outputs an ON signal when the liquid level becomes a predetermined value or less, and outputs an ON signal when the liquid level becomes a predetermined value or more, and plays a role of repeating replenishment and cutting of the mixed liquid. On the other hand, the diluting device 17 is configured to mix the undiluted solution obtained by sucking the undiluted solution 11 from the hose 12 through the electromagnetic valve 15 with water at a predetermined concentration in the diluting device 17. The liquid level gauge 1 of the present invention disposed on the stock solution side 11 emits an ON signal when the liquid level is almost zero. That is, when the stock solution is exhausted, all the solenoid valves are closed to interrupt the generation of the mixed solution.

  FIG. 3 shows a control circuit for receiving a signal from the liquid level gauge according to the present invention. When the liquid level is lowered in the liquid level gauge 10 disposed in the processing machine tank 13, the lower float is lowered and the reed switch is turned on. With this signal, the relay M1 is operated and held, both the water-side and stock solution-side solenoid valves are opened, and the mixed solution is supplied to the tank 13. When the liquid level rises, this time the upper float rises, the reed switch is turned on, the relay M2 is activated, the relay M1 is released, the two solenoid valves are closed, and the supply of the mixed liquid is stopped. This operation is repeated to achieve automatic replenishment of the mixed solution. On the other hand, the stock solution in the drum can continue to decrease, but when the liquid level reaches the bottom of the drum, the float of the level gauge 1 of the present invention is attached to the bottom of the drum, the reed switch is turned on, and an ON signal is generated. The relay M2 is activated, the relay M1 is released, and the two solenoid valves are forcibly closed.

  Provided is a fully automatic dilution apparatus equipped with a liquid level gauge with a simple structure and low cost. It can also be used as a sensor that warns that the liquid in a deep tank has become empty like a drum can.

1 Level gauge
2 drums
3 Float
4 Reed switch 5 weight
6 Stopper
7 Lead wire
8 Fixing means
9 Liquid level

Claims (2)

A weight 5 heavier than the buoyancy acting on the float 3 is provided at the bottom of the level gauge 1. When the liquid level 9 is above the float 3, it floats to the position where it stops at the stopper 6 with the buoyancy acting on the float 3, and the reed switch 4 is turned off. A liquid level gauge is provided in which the reed switch 4 is turned on at a position where the liquid level 9 is lowered and the float 3 is equal to or lower than the bottom of the weight 5.    A fully automatic diluting device comprising the liquid level gauge according to claim 1 in a drum can or the like on the stock solution side.

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