JPH0335427B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention automatically detects the degree of contamination of a cleaning liquid in a cleaning liquid tank used during continuous cleaning of fabrics, and when the degree of contamination of the cleaning liquid increases, the cleaning liquid The present invention relates to an automatic control device for the degree of contamination of a cleaning liquid in a cleaning liquid tank for fabrics, which is capable of increasing the cleaning effect of the cleaning liquid on the fabric by adding fresh water therein.

After an industrially produced long fabric is subjected to treatments such as pretreatment and dyeing, it is necessary to wash the fabric following these treatments. Therefore, in the past, various cleaning devices have been developed to effectively clean these long fabrics. Conventional cleaning devices of this type can be roughly divided into immersion type, in which the fabric is continuously passed through a cleaning liquid tank filled with cleaning liquid, and water jet type, in which cleaning water is sprayed towards the fabric as it is continuously transferred. However, in the former type of immersion type washing apparatus, the washing water in the liquid tank becomes contaminated as time passes for washing the fabric, and the washing effect gradually decreases. In addition, in the latter type of water jet type washing device, since fresh water is constantly applied towards the fabric, a large amount of fresh water is consumed.
There were problems from the perspective of water resources.

The present invention was made to solve the problems of conventional fabric washing, and is designed to wash fabric continuously and effectively while minimizing the amount of fresh water used. It is an object of the present invention to provide an automatic control device for the degree of contamination of a cleaning liquid, which detects the degree of contamination of the cleaning liquid in a cleaning liquid tank and supplies clean liquid according to the degree of contamination.

Further, to describe the present invention more specifically, the degree of contamination of the wash water in the wash water tank in which the fabric to be washed is immersed and passed through the wash water is constantly detected, and the degree of contamination of the wash water exceeds a predetermined set value. A washing liquid tank in a continuous washing liquid tank for fabrics, when the washing water is increased, fresh water can be added into the washing water to enhance the washing effect of the fabrics, and to achieve the saving of water resources. The purpose of this invention is to provide an automatic control device for the following.

The present invention will be described in detail below based on embodiments shown in the drawings.

1 is a long fabric to be washed; 2 is a washing tank through which the fabric 1 is continuously passed; a guide roll 3 is disposed in the washing tank 2 to guide the fabric 1 in a meandering manner. . The cleaning water tank 2 is also provided with an overflow port 4 and a drain port 5 disposed below the overflow port 4, and a drain pipe 6 made of a transparent material is connected to the drain port 5. has been done. A valve 7 is provided at the lower end of the drain tube 6 to adjust the amount of cleaning water drained from the drain tube 6. 8 and 9 are drain pipes 6
A light-emitting body and a light-receiving body are arranged opposite to each other on the outside of the drain pipe 6, and the light-emitting body 8
The luminous intensity or the distance from the photoreceptor 9 can be adjusted. Further, the photoreceptor 9 may be anything that can produce an electrical output by receiving light; for example, a photoreceptor, a solar cell, a variable resistance element, etc. can be used. 10 is a control circuit, and this control circuit 10 can open and close the electromagnetic valve 11 for supplying fresh water into the cleaning water tank 2 based on the input to the light emitter 8 and the signal from the photoreceptor 9. I'm starting to be able to do it. 12 is a drain valve.

The structure of this embodiment has been described above, and its operation will be described next. After pouring the washing water 13 into the washing water tank 2, the fabric 1 is continuously transferred while being immersed in this washing water 13. Fabric 1 is washed,
As the washing of this fabric progresses, the water tank 2
The cleaning water inside becomes gradually contaminated, and this contaminated cleaning water reaches the inside of the drain pipe 6.
Also, at this time, since the light emitter 8 emits light in response to the input from the control circuit 10 and is projected onto the light receiver 9,
When the degree of contamination, that is, the degree of turbidity, of the cleaning water in the drain tube 6 is high, the amount of light received by the photoreceptor 9 decreases. When the control circuit 10 detects that the amount of light received by the photoreceptor 9 is weak, the electromagnetic valve 11 is opened in response to this detection signal, and fresh water is supplied into the cleaning water tank 2. Due to this supply of fresh water, the water in the cleaning water tank 2 is gradually discharged from the overflow port 4 and the drain port 5, and when the water in the water tank 2 becomes clear, the water in the drain pipe 6 also becomes clear and translucent. In order to improve the water quality, the amount of light received by the photoreceptor 9 increases, and due to the high level output from the photoreceptor 9, the control circuit 10 outputs a signal to close the electromagnetic valve 11, thereby interrupting the fresh water supply. Thereafter, in the same manner, when the wash water in the wash water tank 2 becomes cloudy, fresh water is supplied, and when the wash water becomes clear, the fresh water supply is interrupted, which is repeated.

Therefore, according to this embodiment, the washing water in the washing tank can be automatically maintained in a clear state, so that continuous washing of the fabric can be effectively performed. Furthermore, if the cleaning tank is less contaminated, the supply of fresh water to the cleaning tank is suppressed, which helps conserve water resources.

Although this embodiment describes automatic water supply using one washing water tank, a plurality of washing water tanks 2 having the above structure may be arranged in multiple stages in the fabric transport direction.
In addition, when multiple stages are arranged, the control circuit detects and compares the degree of contamination of the washing water in the washing tanks before and after the washing tank, so that the degree of contamination of the washing water in each washing tank gradually clears in the direction of fabric transport. Effective cleaning can be expected if water is supplied automatically according to a program. Furthermore, if the electromagnetic valve 11 for fresh water supply in the above embodiment is one in which the opening degree of the electromagnetic valve 11 can be adjusted using an output signal (pulse) from the control circuit 10, the opening degree of the electromagnetic valve 11 can be adjusted according to the degree of contamination of the washing water. The amount of water supplied per hour can be increased or decreased. Therefore, if the degree of contamination of the washing water is severe, increasing the amount of water supplied per hour can improve the water quality in the aquarium in a short time. Further, the above-mentioned washing water may be a washing liquid mixed with a washing additive.

As described above, the present invention detects the degree of contamination of the cleaning liquid in the cleaning liquid tank containing the cleaning liquid to be used to clean the fabric by using a sensor including a light emitter and a photoreceptor, and uses the contamination degree detection output from this sensor to detect the degree of contamination of the cleaning liquid in the cleaning liquid tank. The cleaning liquid in the cleaning liquid tank can be automatically adjusted to the desired clear liquid by supplying additional clean liquid into the cleaning liquid tank. Since the cleaning liquid is supplied and the cleaning liquid in the liquid tank is automatically adjusted to the desired clear cleaning liquid, there is an effect that the cleaning liquid is not wasted and the fabrics are effectively washed continuously. Therefore, not only water resources can be saved, but also the fabric can be rapidly washed continuously.

[Brief explanation of drawings]

The drawing is an explanatory diagram showing an embodiment of the cleaning fluid contamination degree automatic control device according to the present invention. 1...Fabric, 2...Washing tank, 3...Guide roll, 4...Overflow port, 5...Drain port, 6
... Drain pipe, 7 ... Valve, 8 ... Light emitter, 9 ... Photoreceptor, 10 ... Control circuit, 11 ... Solenoid valve,
12... Drain valve.

Claims (1)

[Claims] 1. A sensor consisting of a light emitter and a photoreceptor for detecting the degree of contamination of the cleaning liquid in the fabric cleaning liquid tank containing the cleaning liquid to wash the fabric, and a sensor that uses the contamination level detection output from the sensor to clean the fabric cleaning liquid tank. 1. An automatic control device for cleaning fluid contamination level in a fabric cleaning fluid tank, characterized by comprising a valve opening/closing means for opening and closing a valve for supplying additional fluid.