JPS6154271A - Washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning device that is most suitable for cleaning containers and the like.

[Prior art] Conventional cleaning equipment involves a cleaning process in which cleaning water is sprayed from a cleaning nozzle onto the object to be washed, which is transported by an endlessly rotating conveyor chain, and a process in which the object to be washed is washed after cleaning. The body is finished with a rinsing process in which rinsing water is jetted from a rinsing nozzle to wash off the washing water.

[Problems to be Solved by the Invention] In the cleaning process of such a cleaning device, the cleaning water sprayed from the nozzle is returned to the cleaning tank for reuse. The amount of washing water decreases when the object to be washed is moved to the next rinsing process before it is completely drained.

For this purpose, the rinsing water injected from the rinsing nozzle in the rinsing step is guided to the washing tank to replenish the washing water. On the other hand, new rinsing water is sequentially replenished into the rinsing tank, and the rinsing water and washing water are heated by directly blown steam in order to improve the washing effect.

The heating temperature varies depending on the object to be cleaned, but for objects to be cleaned such as plastic containers, for example, it is increased to 60'C to 80''C.Therefore, the heating device is always in operation while the cleaning device is in operation. Particularly in the winter when the water temperature is low, it takes time to raise the water temperature to the operating temperature and a large amount of thermal energy is required, resulting in high cleaning costs.

Therefore, an object of the present invention is to provide a cleaning device that can reduce cleaning costs.

Means for Solving Problem c] In order to achieve the above object, the present invention includes a method in which the washing water injected from the washing nozzle is returned to the washing tank during the endlessly rotatable forging process. and a rinsing step in which the rinsing water injected from the rinsing nozzle is returned to the rinsing tank and reused, respectively, and a water quality detection means for detecting the degree of contamination of the 1τ rinsing water is provided in the rinsing tank. In addition, a drain valve which is opened by a signal from the detection means is provided in the tank main body of the double tank.

[Function] In the rinsing process of such a cleaning device, the rinsing water that has completed its work is returned to the rinsing tank and is reused until the degree of contamination reaches the required control level, and is drained when the degree of contamination reaches the required control level. Become.

[Example 1] Hereinafter, a practical example of the present invention will be explained in detail with reference to the drawings of FIGS. 1 to 4.

In the figure, reference numeral 1 indicates the conveyance chain of the cleaning device 3 which can rotate in the direction of the arrow, and includes a driving sprocket 5 and a driven sprocket 7 driven by a motor M incorporated in the main circuit.
This is a conveyance line that is endlessly looped around and conveys the object to be cleaned from the conveyance start end 1a' side to the conveyance end side 1b. A cleaning process 9 and a rinsing process 11 are arranged in the conveyance process by the conveyance chain 1 in order from the conveyance start OW 1 a side.

The cleaning process 9 includes cleaning nozzles 13 facing the top, bottom, and sides of the conveyance line, and cleaning Washing to secure p water) p tank 15
and a cleaning pump 21 that sends the cleaning water in the tank 15 to the cleaning nozzle 13, and the pump 21 stops operating when the main circuit is turned off.

Further, the cleaning tank 19 is arranged below the spraying area of the cleaning nozzle 13 so that the cleaning water sprayed from the cleaning nozzle 13 can be dropped into the tank 19 for reuse.

Note that the cleaning tank 19 is provided with a steam blow-off valve 23 and a water supply valve 25, respectively, and the eight valves 23 and 25 are equipped with a water temperature sensor that detects water temperature and a water level sensor that detects a specified water level (
It is controlled to be openable and closable by signals from (none of which are shown), and eight valves 23 and 25 are used to send steam and water into one cleaning tank.

As a result, a predetermined level of heated washing water is maintained in the washing tank 19.

On the other hand, (V-rinsing step 11 includes rinsing nozzles 27 facing above and below the conveyance line, an iM rinsing tank 29 for securing finishing rinsing water, and a rinsing pump 31 for feeding rinsing water in the tank 29 to the rinsing nozzle 27. The pump 31 stops operating when the main circuit is turned off.The rinsing tank 29 is disposed below the injection area by the rinsing nozzle 27, and the final rinsing water injected from the nozzle 27 is transferred into the tank 29. It can be dropped into a container and reused.

Inside the rinsing tank 29, there are upper and lower water level sensors S1 and S2 that detect the water level of the rinsing water, a water quality sensor S3 that detects the degree of dirt in the rinsing water, and a water temperature sensor S4 that detects water humidity.
is attached to the tank main body portion 29a, and a drain valve 33, a water supply valve 35, and a steam blow-off valve 37 are provided, respectively. The water supply valve 35 is connected to a water supply tap (not shown), and the steam blow-off valve 37 is connected to a boiler (not shown) via a connecting pipe 37a.

Water level sensor S1/S2, the upper sensor S1 is activated by the water supply valve 3 when the liquid level in the rinsing tank 29 reaches a certain level.
It has the function of closing the steam valve 5 and opening the steam blow-off valve 37. The sensor S2 on the lower side has a function of closing the drain valve 33 when the liquid level is zero, that is, all the water has been drained, and a function of opening the water supply valve 35.

The water temperature sensor S4 has a function of closing the steam blow-off valve 37 when the rinsing water reaches a predetermined temperature, and a function of turning the main circuit on and off. In addition, water quality detection sensor 1
The drain valve 33 has a function of opening the drain valve 33 which turns off the main circuit of the washing 1p device 3 and stops the device 3 when the degree of contamination of the rinse water reaches the required control level. Dirty iM water will now be drained at the frontage.

The reference setting of the degree of contamination by the water quality detection sensor can be changed by the control unit 39. For example, in the case of plastic containers for filling bottles, etc., the required control level of the degree of contamination can be lowered, so the use of rinsing water It becomes possible to secure a large number of times.

In the cleaning apparatus configured as described above, the object to be cleaned, such as a plastic container placed on the starting end 1a of the conveyance line, is washed by being irradiated with cleaning water in the cleaning process, and then is subjected to the next rinsing process. Finishing step 11: Finishing step 7: Finishing is done by spraying water. iii: The 2r water in the step 11 is:
; After DPi is emitted from the V-shaped nozzle 27, the rinsing tank 2
It is recycled and reused.

The number of cycles of rinsing water is continued until the degree of contamination of the rinsing water reaches the required control level. During circulation, steam blow-off valve 3
7 is closed and heating of the rinsing water is stopped.

Next, when the degree of contamination of the rinsing water reaches a required control level, the water quality detection switch S3 is activated to open the drain valve 33. At the same time, dirty water is drained.

When the lower sensor S2 detects that water has been drained, the water supply valve 3 closes the drain valve 33 based on a signal from the sensor S2.
Water is supplied to the specified layer through the opening 5. When the upper sensor SI detects that water has been supplied to the specified layer, the water supply valve 35 becomes a lever and the steam blow-off valve 37 opens.

As a result, steam is directly blown into the container and heated to a specified temperature.

Next, when the water temperature sensor S4 detects that the water temperature has been heated to a specified temperature, the steam blow-off valve 37 is closed in response to a signal from the sensor S4, and the main circuit is turned on. Thereafter, the cycle in which cleaning is started is repeated.

[Effects of the Invention] As explained above, according to the cleaning device of the present invention, the rinsing water can be reused until the degree of contamination of the rinsing water reaches the required control level, and during circulation use, the rinsing water can be reused. Since it is possible to operate or stop the machine, it is possible to reduce cleaning costs.

[Brief explanation of drawings]

FIG. 1 is an overall side view of the cleaning device of the present invention, FIG. 2 is a cutaway side view of essential parts, FIG. 3 is a front view of the cleaning device, and FIG. 4 is a plan view of the same. Explanation of main drawing symbols 1...Conveyance chain (l#2 feeding process) 9...Washing process 11...Rinsing process 13...Washing? '4) Nozzle 19...wash) p tank 27...rinsing nozzle 29...i? Nitrogen tank 29a...Tank body 33...Drain valve S3...Water quality detection sensor (detection means) Fig. 1 Fig. 2 Fig. 3

Claims (1)

[Claims] In the transport process, which can be endlessly rotated, there is a cleaning process in which the cleaning water sprayed from the cleaning nozzle is returned to the cleaning tank and reused, and a rinsing process in which the rinsing water sprayed from the rinsing nozzle is returned to the rinsing tank and reused. A water quality detection means for detecting the degree of contamination of the rinsing water is provided in the rinsing tank, and a drain valve that opens in response to a signal from the detection means is provided in the main body of the rinsing tank. Characteristic cleaning equipment