JPH0727692A - Annunciator for time to exchange solution - Google Patents

Abstract

PURPOSE:To make a judgment of the time to exchange a solution accurate and to enable even a man free of knowledge about the time to exchange to use an annunciator without errors by storing a comparison value set on the basis of a value measured by dripping a standard specimen of a solution and by comparing the measured value of a dripping state of the solution with the stored comparison value. CONSTITUTION:A standard specimen is injected into a syringe 2 up to the position of a level sensor 5. The specimen is dripped by a capillary 3 in a state of driplets 7. A control circuit counts driplets from the position of the sensor 5 and corrects the count when a given time ends, to make a comparison value and to store it in a memory circuit, thereby finishing a setting of the comparison value. In a similar procedure, a count of driplets of a detergent solution is measured and compared with the comparison value of the memory circuit, and, when the measured value is less than the comparison value, the necessity of solution replacement is indicated by lighting a solution replacement indicating lamp 14. Making one setting action with the standard specimen in this way dispenses with storage of a comparison value in delivery and enables judgment of the time to exchange a solution by calculating and storing the comparison value automatically.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solution renewal time notifying device for notifying the renewal time by utilizing the correlation between the surface tension of the solution and the renewal time.

[0002]

2. Description of the Related Art Conventionally, in a cleaning apparatus using, for example, an aqueous cleaning solution, as an object to be cleaned is cleaned, active ingredients of the aqueous cleaning solution are consumed and the cleaning power is lowered. Therefore, it is necessary to replace or add the cleaning agent aqueous solution according to the usage condition. In determining the update time such as replacement or addition, for example, a cleaning agent aqueous solution is dropped in the form of droplets from a thin tube, the number of droplets is counted for a certain period of time, and the cleaning agent aqueous solution is counted by the counted number of drops. The applicant of the present application has previously proposed a method of notifying the time of renewal such as replacement or addition.

In the cleaning solution update time notification device for notifying the update time such as replacement or addition of the cleaning solution based on the number of dropped liquid drops, the determination as to whether it is the update time or not.
This is done by comparing the counted current number of drops of the cleaning agent aqueous solution with the comparison value stored in the ROM.

[0004]

However, in the above-mentioned conventional apparatus, it is necessary to store the comparison value for each solution in the ROM or the like in advance at the time of shipping, and the comparison is made for each different solution to be used. There was a problem that the value had to be changed.

Further, even if the operator sets a comparison value, it is necessary for the operator to know in advance the number of drops to be exchanged for each solution to be used, and sometimes the wrong usage is required. There was a problem that it did. There was also the problem that it could not be used by people without knowledge.

The present invention has been made in order to solve the above-mentioned problems, and it is not necessary to store a comparison value at the time of shipment, and it is possible to know the renewal time of the solution without fail. It is an object of the present invention to provide a solution renewal time notification device that can be used by a person who has no knowledge of renewal time without mistake.

[0007]

In order to achieve this object, a solution renewal timing notifying device of the present invention is a dropping means for dropping a solution in the form of droplets, and a dropping solution dropped from this dropping means. Drop state measuring means for measuring the state, by comparing the measured value indicated by the drop state measuring means and the comparison value stored in the storage means, a determining means for determining whether or not the solution should be updated, Equipped with a display means for displaying the determination result of the means, further, before starting the update timing determination of the solution, the standard specimen of the solution is dropped by the dropping means,
The comparison value setting means for setting the comparison value based on the measurement value indicated by the dropping state measurement means is provided.

[0008]

In the solution renewal timing notification device of the present invention having the above structure, the dropping means causes the solution to be dropped in the form of droplets. The dropping state measuring means measures the dropping state of the solution dropped from the dropping means. The determination means determines whether or not the solution should be updated by comparing the measurement value indicated by the dropping state measurement means with the comparison value stored in the storage means. The display means displays the determination result of the determination means.

The comparison value setting means drops the standard sample of the solution by the dropping means before starting the determination of the update time of the solution, and sets the comparison value based on the measurement value indicated by the dropping state measuring means.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in an apparatus for notifying the renewal timing of a cleaning agent aqueous solution will be described below with reference to the drawings.
Here, the update is a concept including replacement and addition of the cleaning agent aqueous solution.

FIG. 1 is a front view and a side view showing an outline of an apparatus for notifying a renewal timing of a cleaning agent aqueous solution of this embodiment. The detergent aqueous solution 1 containing the surfactant can be injected into the syringe 2, and the detergent aqueous solution 1 is dripped in the state of droplets 7 from the thin tube 3. A droplet detector 4 is provided in the dropping path of the droplet 7, and a liquid level sensor 5 for detecting the liquid level of the cleaning agent aqueous solution 1 injected into the syringe 2 is provided on the upper surface of the syringe 2 on the back surface of the apparatus. It is attached to the pillar 6. A beaker 8 that collects the dropped liquid droplets 7 is placed on the upper surface of the device. The beaker 8 is held by a liquid receiving stand 11 and a top plate 9. Also, on the front side of the housing 12,
Operation switch 13 for turning the power on and off and starting measurement, and a number display LE for displaying the number of counted liquid drops
D14 is provided.

FIG. 2 shows a control block diagram of the apparatus for notifying the renewal timing of the aqueous cleaning solution according to this embodiment. A liquid level sensor 5 for detecting the liquid level of the cleaning agent aqueous solution 1 injected into the syringe 2.
A droplet detection sensor 15 installed in the droplet detector 4 for detecting the droplet 7 controls a control circuit 16 for controlling the entire apparatus.
It is connected to the. Further, the control circuit 16 includes an EEPROM for storing comparison values or an RA with backup.
A memory circuit 17 including M and the like, an operation switch 13 for operating the present device, and a number display LED 14 for displaying the counted number of droplets are connected.

First, referring to FIG. 3, the operation of setting the comparison value of the cleaning solution renewal time notifying device of this embodiment will be described. In the figure, reference numeral Si (i = 1, 2, 3, ...)
Indicates each step.

The user turns on the power by depressing the power switch in the operation switch 13 on the housing 12 of the apparatus for notifying the renewal time of the cleaning solution. Subsequently, the unused cleaning agent aqueous solution 1, which has never been used for cleaning, that is, the standard sample, is injected into the syringe 2 to a position slightly higher (about 5 mm) than the position of the liquid level sensor 5. At this time, the standard sample of the cleaning agent aqueous solution 1 is dropped in the form of droplets 7 from the thin tube 3.

When the setting switch of the operation switches 13 is depressed, the setting mode is set (S1). When the setting mode is entered, the indicator lamp for notifying the setting mode is turned on (S2). Next, the count value of the number of droplets is cleared (S3), and the presence or absence of the standard sample of the cleaning agent aqueous solution 1 in the syringe 2 is detected (S4). When the standard sample of the cleaning agent aqueous solution 1 in the syringe 2 is not detected by the liquid level sensor 5 (S4: N), that is, the cleaning agent aqueous solution is not injected or
When the prescribed amount has not been injected, the process is stopped as an error 2 (S13). On the other hand, when the standard sample of the cleaning agent aqueous solution 1 is injected into the syringe 2 up to the position of the liquid level sensor 5 (S4: Y), the next liquid level detection is awaited (S5, S6).
Proceed to.

In the liquid level detection waiting (S5, S6), when the liquid level is not detected even after a certain period of time elapses (S5:
N), error 3 (S14), and the process is stopped. On the other hand, while waiting for the liquid level detection (S5, S6), the standard sample of the cleaning agent aqueous solution 1 is dropped from the thin tube 3 in the form of droplets 7, so that the standard sample of the cleaning agent aqueous solution 1 in the syringe 2 is dropped. The liquid level of No. 2 decreases with time and reaches the position of the liquid level sensor 5. Then, the control circuit 16 determines that the liquid level has been detected (S6: Y), starts counting the droplets 7 of the standard sample of the cleaning agent aqueous solution 1 (S7), and waits for the end of the measurement time (S8,
It becomes S9).

While the predetermined measurement time is not completed, (S
9: N), S8 and S9 are repeated. At this time, if the droplet 7 is not detected (S8: N), the process is stopped as an error 1 (S15). Here, the control circuit 16 counts the number of drops and displays the number of drops on the number display LED 14. When the predetermined measurement time ends (S9: Y), the control circuit 16 multiplies the counted value by a predetermined correction coefficient (S10), and then stores the corrected value in the storage circuit 17 as the comparison value P. Yes (S11). Then, the indicator lamp indicating the setting mode is turned off (S12), and the setting operation ends.

Next, with reference to FIG. 4, the measurement operation of the cleaning solution renewal time notification device of this embodiment will be described.

The user turns on the power by depressing the power switch in the operation switch 13 on the housing 12 of the apparatus for notifying the renewal timing of the cleaning solution. Then, the cleaning agent aqueous solution 1 after cleaning to be measured is injected into the syringe 2 to a position slightly higher (about 5 mm) than the position of the liquid level sensor 5. Then, when the measurement switch of the operation switches 13 is pressed, the measurement mode is set (S51). At this time, the cleaning agent aqueous solution 1 is dropped from the thin tube 3 in the state of droplets 7 of the cleaning agent aqueous solution 1. When the measurement mode is entered, the indicator lamp for notifying the measurement mode is turned on (S52). Next, the count value of the number of droplets is cleared (S3), and the presence or absence of the cleaning agent aqueous solution 1 in the syringe 2 is detected (S4). When the cleaning agent aqueous solution 1 in the syringe 2 is not detected by the liquid level sensor 5 (S
4: N), that is, when the cleaning agent aqueous solution 1 has not been injected or a specified amount has not been injected, the processing is stopped as an error 2 (S13). On the other hand, when the cleaning agent aqueous solution 1 is injected into the syringe 2 up to the position of the liquid level sensor 5, (S
4: Y), and proceed to the next liquid level detection wait (S5, S6).

When the liquid surface is not detected even after a certain period of time in the liquid surface detection waiting (S5, S6) (S5:
N), error 3 (S14), and the process is stopped. On the other hand, in the waiting for liquid level detection (S5, S6), the cleaning agent aqueous solution 1 is dripped in the state of droplets 7 from the thin tube 3, so that the level of the cleaning agent aqueous solution 1 in the syringe 2 changes with time. It drops and reaches the position of the liquid level sensor 5. When the liquid level of the cleaning agent aqueous solution 1 reaches the position of the liquid level sensor 5, the control circuit 16 judges that the liquid level is detected (S6: Y), and starts counting the droplets of the cleaning agent aqueous solution (S7). Waiting for the measurement time to end (S8, S9).

While the predetermined measurement time has not ended (S
9: N), S8 and S9 are repeated. At this time, if the droplet 7 is not detected (S8: N), the process is stopped as an error 1 (S15). Here, the control circuit 16 counts the number of drops and displays the number of drops on the number display LED 14. When the predetermined measurement time ends (S9: Y), the counted count value is compared with the comparison value P stored in the storage circuit 17 in the setting operation (S53), and the counted count value is larger than the comparison value P. When (S53: Y), the indicator light indicating the measurement mode is turned off (S52), and the measurement operation ends. However, when the counted value is smaller than the comparison value P (S53: N), after the liquid exchange indicator light notifying the need for liquid exchange is turned on (S55), the indicator light indicating the measurement mode is turned off. Then (S52), the measurement operation ends.

As described above, by performing the setting operation once with the unused cleaning agent aqueous solution 1 which has never been used for cleaning, that is, the standard sample, the comparison value P is automatically calculated and the comparison value P is calculated. By storing it, it is not necessary to store the comparison value at the time of shipment, and it is possible to know the update time of the cleaning agent aqueous solution without fail, and even a person who has no knowledge of the updating point of the cleaning agent aqueous solution can use it without mistake. be able to.

In this embodiment, only the comparison value is stored in the memory circuit 17, but the present invention is not limited to this, and as shown in FIG. 5, the memory circuit 17 or a new value is provided. The history storage circuit 18 sequentially stores the number of drops for each measurement, and further includes a printing mechanism 19 such as a printer or an interface 20 with a personal computer, and outputs the stored number of drops for each measurement in response to an instruction from the outside. By doing so, it is possible to easily manage the deterioration history of the cleaning agent aqueous solution in use. At this time, by providing the calendar mechanism 21 including a timer, the date and time for each measurement can be stored at the same time, so that more detailed history management can be performed.

Although the above-mentioned embodiment has been described with reference to an example in which the detergent-containing aqueous solution containing a surfactant is applied, the present invention is not limited to this, and there is a correlation between the surface tension of the solution and the renewal time. Any solution can be applied.
Further, in the above-mentioned embodiment, as the dropping state measuring means, a means for measuring the number of drops per time is applied, but the time for which a fixed number of drops is dropped, or the drop weight or volume per fixed drop number is measured. The same effect can be obtained by means.

[0025]

As is apparent from the above description, in the solution renewal time notification device of the present invention, the comparison value is automatically calculated by performing the setting operation once with the standard sample of the solution. By storing the value, it is not necessary to store the comparison value at the time of shipment, and it is possible to know the solution update time without fail, and it is possible for someone who does not have knowledge about the solution update time to use it without mistake. .

[Brief description of drawings]

FIG. 1 is a front view and a side view showing an outline of the present embodiment.

FIG. 2 is a control block diagram of the present embodiment.

FIG. 3 is a flowchart of a setting operation of this embodiment.

FIG. 4 is a flowchart at the time of measurement operation of the present embodiment.

FIG. 5 is a control block diagram of another embodiment.

[Explanation of symbols]

 3 Capillary Tube 4 Droplet Detection Section 13 Operation Switch 14 Number Display LED 16 Control Circuit 17 Storage Circuit

Claims (2)

[Claims] 1. A dropping means for dropping a solution in a droplet state, a dropping state measuring means for measuring a dropping state of a solution dropped from the dropping means, and a measured value and a memory indicated by the dropping state measuring means. A solution update timing notifying device including a determination unit that determines whether or not the solution should be updated by comparing the comparison value stored in the unit, and a display unit that displays the determination result of the determination unit. In the above, a comparison value setting means for dropping the standard sample of the solution by the dropping means and setting the comparison value based on the measurement value indicated by the dropping state measuring means before starting the determination of the update timing of the solution is provided. A solution renewal time notification device characterized in that 2. The renewal time notification device for a solution according to claim 1, wherein the solution is an aqueous detergent solution containing a surfactant.