TWI663000B - Cleaning method and cleaning device used by the method - Google Patents

Abstract

Provided is a cleaning method for cleaning with a cutting oil adhered thereon, without the need for temperature control of the cleaning liquid, which can suppress the generation of air bubbles for effective cleaning. The cleaning method of the present invention is a cleaning method used in a cleaning device. The cleaning device includes: a cleaning tank for storing objects to be cleaned; a blower for supplying air; and a conveying pipe for supplying from a blower The air is conveyed to the washing tank; it is characterized in that it has an immersion step, injecting an aqueous solution containing a detergent solution into the washing tank, immersing the object to be cleaned in the washing tank into the aqueous solution, and a washing step, The blower is driven to spray air into the aqueous solution injected into the washing tank, thereby washing the object to be washed. The detergent liquid is an alkaline detergent liquid containing no surfactant, which contains at least one of silicate, phosphate, carbonate and chelating agent.

Description

Cleaning method and cleaning device used in the cleaning method

The present invention relates to a cleaning method, and particularly to a cleaning method and a cleaning device used in the cleaning method.

Conventionally, there have been various cleaning methods for cleaning objects to be cleaned, such as cutting oil used for metal working, and the like.

First, the method of agitating the cleaning solution by pump flow. Specifically, the cleaning solution containing a surfactant is injected into the cleaning tank, the object to be washed is immersed in the cleaning solution, and the temperature of the cleaning solution is raised, and then washed by pump flow. Cleansing method. However, in this method, the cutting oil adhering to the object to be cleaned requires a considerable flow of water or warming, especially in order to sufficiently remove carbon components and the like. Therefore, a large pump that generates a large water flow or a large heating device for raising the temperature of the washing liquid is required, which has a problem that the cost becomes high.

Next, a method of using ultrasonic vibration cleaning solution has been proposed (see Japanese Patent Application Laid-Open No. 9-104992). Specifically, it is a method of immersing the object to be cleaned into a cleaning solution containing, for example, a surfactant, and using an ultrasonic vibrator to emit an ultrasonic wave with a low frequency and vibrating the cleaning solution.

In this method of using ultrasonic waves, because of the different shapes of the objects to be cleaned, there are variations (sound pressure distributions) caused by ultrasonic waves, and it is impossible to remove all the dirt in the objects to be cleaned. Therefore, it is necessary to use a plurality of ultrasonic vibrators, or use an ultrasonic vibrator capable of automatically changing the frequency. Further, when a washing liquid of about 200 liters is shaken, a relatively large ultrasonic vibrator is required. Therefore, in the method using ultrasonic waves, there is a problem that the cost is greatly increased.

In addition, there has been proposed a method in which a washing liquid is sprayed from above on the object to be washed. Specifically, it is a method of guiding the cleaning liquid to the upper part of the device by means of a pump, and spraying the cleaning liquid from the top of the object to be cleaned. In this method, in order to improve the cleaning effect, it is necessary to heat the cleaning liquid by a heating device, and in order to spray the cleaning liquid from above, there is a problem that the device itself becomes large.

Furthermore, a method of spraying a cleaning solution at a high pressure using an induction motor has been proposed. Specifically, as an operator, in the cleaning method of high-pressure spraying of the washing liquid from various directions to the object to be cleaned by high-pressure spraying, when it is blown from the vertical direction to the washing relative to the plane, In the case of cleaning liquid, although the cleaning can be effectively performed, the cleaning power is reduced in a part where the spray angle is wide. Therefore, in a complex-shaped object to be cleaned, in particular, in a portion which is parallel to the spraying direction and is not sprayed in a vertical direction, the cleaning effect is significantly reduced, and there is a problem that the entire object to be cleaned cannot be washed well. In addition, in this method, the cleaning liquid is sprayed under high pressure, and there is a problem that the device itself becomes large in size in order to efficiently recover and reuse the cleaning liquid.

In addition to the above methods, there are a method of shaking a flat plate member up and down in the cleaning liquid, stirring the cleaning liquid by vibration, or a method of rotating the object to be cleaned in the cleaning liquid by washing the motor, etc. It is proposed, however, that compared with the above-mentioned cleaning method, the cleaning power is poor.

In addition, there is a well-known washing method in which air to be washed is immersed in a washing liquid, air is sprayed into the washing liquid, and the washing liquid is stirred to wash the washed material. Compared with other cleaning methods, this method of air foaming has a much higher agitation force of the cleaning liquid. However, this cleaning method has a problem of generating a large number of bubbles.

When the object to be cleaned is washed, a cleaning solution containing a surfactant is generally used in order to improve the cleaning power. However, when a cleaning solution containing a surfactant is used in the above-mentioned air-foaming cleaning method, when the temperature of the cleaning solution is lower than the cloud point of the surfactant, air bubbles are generated. Most of the cleaning solutions containing surfactants are those whose cloud point is higher than normal temperature. Therefore, when a cleaning solution containing a surfactant is used at normal temperature, a large amount of air bubbles begin to be generated from the time when the cleaning is started. When a large amount of air bubbles are generated, the cleaning solution overflows from the cleaning tank, and there is a problem that the cleaning cannot be completed. In addition, because a large amount of air bubbles are generated, they hinder the stirring of the cleaning liquid made by air foaming, and there is a problem that the cleaning effect is reduced.

As mentioned above, when the cleaning solution containing a surfactant is not used at a temperature higher than the cloud point, a large number of bubbles will be generated. Therefore, the temperature of the cleaning liquid must be kept higher than the cloud point. However, in the cleaning method of air bubbling, the temperature of the air sprayed into the cleaning liquid is higher than that of the external air, and the surface of the cleaning liquid directly contacts the external air, so the heat of the cleaning liquid is absorbed by the external air As a result, the temperature of the cleaning solution decreases. Therefore, in the cleaning method of air foaming, when a cleaning solution containing a surfactant is used, a large heating device or the like is required to control the temperature of the cleaning solution above the cloud point temperature, and the cost is greatly increased. The problem point.

The present invention has been developed in view of the above circumstances, and among them, a method for cleaning a foamed air in which a to-be-washed object with cutting oil and the like is provided will be provided. The temperature of the cleaning liquid is not required to control the bubbles. A cleaning method is produced to effectively perform cleaning. Further, a cleaning device using this cleaning method will be provided.

In order to achieve the foregoing object, the present invention is a washing method, which includes: a washing tank for containing and washing a thing to be washed; an air supply source for supplying air; and a conveying path for The air supplied by the air supply source is transported to the washing tank, which is characterized by:

An immersion step, injecting an aqueous solution containing a detergent solution into the washing tank, and immersing the object to be washed received in the washing tank into the aqueous solution; and

A washing process, driving the air supply source, spraying air into the aqueous solution injected into the washing tank, thereby washing the object to be washed;

The detergent liquid is an alkaline detergent liquid containing no surfactant, which contains at least one of silicate, phosphate, carbonate and chelating agent.

In the cleaning method of the present invention, an antifoaming agent may be further included in the aqueous solution containing the aforementioned detergent solution.

The cleaning method of the present invention further includes:

A washing step, after the washing step, taking out the washed object from the washing tank, and washing the washed object with water;

A switching process to switch the air transportation path from the air supply source from the path to the washing tank to a path to the outside; and

A moisture removal process. After the switching process, the air supply source is driven again, and air is sprayed on the washed object to remove the water of the washed object.

The cleaning device provided by the second aspect of the present invention is a cleaning device using the cleaning method provided by the first aspect of the present invention, characterized in that the aforementioned air supply source is driven by a rotary drive motor to It is composed of a blower that supplies air to the aforementioned conveying path. The aforementioned air supply source includes: a switching mechanism that switches the conveying path of the air from the blower from the path to the washing tank to the outside of the washing device. A path; and an external ejection mechanism, which is connected to a path to the outside of the cleaning device and ejects air to the outside.

In the cleaning device of the present invention, as long as the bottom of the cleaning tank is connected to the path to the cleaning tank, it is arranged on the surface of the hollow body and a plurality of fine holes are formed. For the air duct, one end side of the plurality of diffuser air duct systems communicates with each other, and the air ducts may be arranged in parallel at predetermined intervals.

In the cleaning device of the present invention, as long as the fine holes are arranged in a staggered manner in the adjacent air diffusers, a lead straight line passing through the axis of the air diffuser is used as a reference in a sectional view. From the surface position on the straight line with the predetermined angle of the aforementioned lead straight line.

When the cleaning method according to the present invention is used, the object to be cleaned is impregnated, and the air caused by the foaming of the air is ejected into the alkaline detergent solution that does not contain a surfactant, whereby the detergent solution is cleaned. Stir. The cleaning agent liquid of the present invention is compared with the cleaning liquid phase containing a surfactant, and the above-mentioned air foaming cleaning method of the poorer cleaning ability is compared with other cleaning methods, which has a much higher Because of the stirring force, it is possible to effectively clean and strengthen the objects to be cleaned with cutting oil and the like by this stirring force. In this case, since the detergent liquid system does not contain a surfactant and does not have a cloud point, the generation of bubbles can be suppressed.

In addition, the detergent liquid of the present invention does not have a cloud point, so even if a cleaning method using air foaming to lower the temperature of the detergent liquid is used, it is not necessary to keep the detergent liquid at a temperature higher than the cloud point. temperature control. Therefore, a large heating device or the like is not necessary, and cost increase can be suppressed.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

Fig. 1 is a perspective view showing a cleaning device to which the cleaning method of the present invention is applied. Figures 2 to 4 are internal perspective views of the cleaning device, which are views seen from the side (Figure 4), the upper surface (Figure 3), and the front (Figure 2). Moreover, in FIG. 3, it is a partial sectional view of a washing tank 3. A washing device 1 is used for washing objects to be cleaned, for example, components of an air cleaner, and the like. The air cleaner is used to generate fine dust, oil fume and other environments, or used in water-soluble cutting oil in a mechanical processing plant for friction suppression. An air cleaner is an electric dust collection system that captures these dusts to purify the air in a machining plant.

The above-mentioned components are summarized in an air cleaner. The air cleaner is, for example, an ionization unit that generates a discharge state between electrodes, charged dust and the like, and a dust collection unit that collects dust by the charged dust and the like. In addition, in the cleaning device 1, the objects to be cleaned are not limited to these units.

The cleaning device 1 includes a casing 2 with an open upper portion and a substantially cubic shape. The side of the casing 2 is enlarged as it goes to the upper part. Inside the casing 2 is provided a washing tank 3 for washing one object to be washed. The washing tank 3 has a space capable of sufficiently storing and storing one of the baskets 25 (see FIG. 5) to be cleaned.

An upper portion of the cleaning tank 3 protrudes upward to form a hollow ridge portion 4 extending in the left-right direction. A hollow portion 18 is provided in the ridge portion 4 for a blower 18 (to be described later) and a switching path of air. A switching link 5 (the switching link 5 is described in detail later). An external hose 6 is connected to the left side surface of the ridge portion 4 to remove moisture from the object to be washed. On the bottom of the casing 2, a drain pipe 7 for discharging water in the washing tank 3, and a plurality of rollers 8 for moving the washing device 1 are provided. A drain port 9 is formed on the bottom surface of the washing tank 3, and the drain port 9 communicates with the drain pipe 7.

An operation display portion 10 is included on the side of the casing 2. The operation display section 10 is provided with a running light indicating that the device is in operation, a blower drive switch for driving the blower 18, a blower stop switch for stopping the blower 18 driving, and a timer that sets the driving time of the blower 18 in advance Switches, etc. In addition, the timer can be set to a driving time of the blower 18 in the range of 0 to 500 hours.

Next to the bottom surface of the cleaning tank 3, a plurality of air diffusing pipes 11 for ejecting air are arranged. The air diffusing tubes 11 are hollow in a cylindrical shape. As shown in FIG. 3 and FIG. 6, one end of the air diffusing tubes 11 is arranged to communicate with each other, and is disposed at a fixed distance from each other and arranged in parallel.

A plurality of fine holes 12 having a diameter of about 2 mm are formed on the surfaces of the air diffusers 11. The fine holes 12 are provided in the air diffusers 11 in a staggered manner (see FIGS. 6 and 7). In addition, as shown in FIG. 8, in the cross-sectional view, the fine holes 12 extend perpendicular to a lead straight line L with an axis O as a reference, and the fine holes 12 are disposed at a predetermined angle with the axis O. α (for example, 30 °) extends a position on a straight line R. Also, although not shown, a hole having a diameter of about 3 mm is formed in the lower portion of the tip of the air diffusing tube 11 for discharging impurities accumulated in the air diffusing tube 11.

In this way, as shown in FIG. 7, the fine holes 12 of the adjacent air diffusing pipes 11 are arranged in a staggered manner, and the air jet directions of the fine holes 12 will not directly collide in a plan view. As shown in FIG. 8, the fine holes 12 are formed at the surface position of the air diffuser 11 having a predetermined angle α in a cross-sectional view. Therefore, as shown in FIG. 9, the fine holes 12 are ejected from the fine holes 12. The air was expelled wide. Therefore, compared with the case where the air is simply ejected in the vertical direction, the air is ejected from the fine holes 12 arranged in a staggered manner, which can cause a turbulent flow of the detergent solution in the cleaning tank 3 This allows the detergent solution to be sufficiently stirred.

A defoaming tank 13 is formed on the front side of the cleaning tank 3 (see FIG. 2). The defoaming tank 13 is used for breaking bubbles. The defoaming tank 13 is installed in the cleaning tank 3 and is located on the liquid surface of the detergent liquid. At the upper end of the defoaming tank 13 side of the cleaning tank 3, a bubble moving plate 14 is formed. When the bubbles of the detergent liquid generated during washing reach the bubble moving plate 14, it is tied to the bubble moving plate 14. Flows to fall from one end of the bubble moving plate 14 into the defoaming tank 13. Bubbles are broken by this burst of time.

A first-stage outlet 15 is formed at the bottom of the defoaming tank 3 and passes through a return pipe 16 to communicate with an inflow port 17 on the lower side wall of the cleaning tank 3. The cleaning agent liquid broken in the defoaming tank 3 passes through the return pipe 16 and naturally flows into the cleaning tank 3.

On the side of the cleaning tank 3 and below the defoaming tank 13, there is provided a blower 18 as an air supply source for supplying air to the diffuser pipes 11 or the outside (described below). The blower 18 is a rotary drive motor (not shown) for supplying air to the inside of the diffuser pipes 11 or the external hose 6. The blower 18 has a specification of an air volume of about 3 m ³ / min and an output pressure of about 40 kpa. Moreover, on the bottom surface of the casing 2 next to the blower 18, an inlet (not shown) is formed for the blower 18 to suck external air.

Here, the blower 18 in this embodiment can be operated by supplying commercial power. Therefore, the cleaning device 1 can be used as long as it can be supplied by a commercial power source, and the cleaning device 1 is movable by the rollers 8, so the convenience is high.

The blower 18 is connected to one end of a supply pipe 19 guided from these supplied air. As shown in FIG. 4, the other end of the conveying pipe 19 is connected to a three-way valve 20 connected to the switching link 5. Here, the switching link 5 and the three-way valve 20 are arranged on the convex portion 4 protruding above the upper end of the washing tank 3. In this way, if the switching link 5 and the three-way valve 20 are disposed higher than the upper end of the washing tank 3, the cleaning agent liquid in the washing tank 3 can be prevented from invading the conveying pipe by mistake. 19. Therefore, it is possible to avoid adversely affecting the blower 18 or to provide a check valve or the like in addition.

An output of one side of the three-way valve 20 is connected to one end of a delivery pipe 21, and the other end of the delivery pipe 21 is connected to one of the air diffusing pipes 11. In addition, one end of a conveying pipe 22 is connected to the other side of the three-way valve 20, and the other end of the conveying pipe 22 is connected to an external hole 23 formed on the side of the cleaning tank 3. The external hole 23 is connected to the external hose 6 which is used when removing water from the object to be washed (described below).

The conveying path of the air from the blower 18 is switched by the three-way valve 20 to a path that passes from the blower 18 through the conveying pipe 19, the three-way valve 20, and the conveying pipe 21 to reach the diffuser pipes 11. , And the path through which the blower 18 passes through the conveying pipe 19, the three-way valve 20, the conveying pipe 22, and the external hole 23 to reach the external hose 6.

The switching link 5 is connected to the three-way valve 20 in the interior of the casing 2. As described above, the air conveyance path from the blower 18 is switched to the cleaning tank 3. The paths of the air diffusers 11 are switched to the path of the external hose 6 through the external hole 23 of the convex portion 4.

The switching link 5 is rotatable by 90 degrees. The air conveyance path from the blower 18 is set to a path leading to the air diffusers 11 when, for example, the switching link 5 is turned laterally. In addition, when the switching link 5 stands in the longitudinal direction, The route to the external hose 6 is switched.

As shown in FIG. 5, the basket 25 containing the components U to be cleaned is formed by using a stainless steel grid-shaped frame assembly member. When the basket body 25 is accommodated in the washing tank 3, a spacer member 26 is arranged at the bottom of the washing tank 3, and a basket body 25 is placed on the upper part of the spacer member 26. The spacer member 26 is formed of a U-shaped frame assembly in a side view. Thereby, the air diffusers 11 can be prevented from contacting the basket 25. The spacer member 26 can be placed in the washing tank 3 for a long time.

Here, in this washing method, the washing | cleaning agent liquid diluted with water is demonstrated. Detergent liquid is used in this cleaning method as the alkali of alkaline detergent liquid without surfactant, which contains at least one of special silicate, phosphate, carbonate and chelating agent. The liquid detergent does not contain a surfactant, in other words, it does not have a cloud point. Therefore, it does not foam in the following washing steps.

As silicates, basic metal (sodium, potassium, etc.) salts and ammonium salts of metasilicic acid and ethyl silicate have been proposed.

Phosphates include basic metal (sodium, potassium, etc.) salts, ammonium salts, and the like of phosphoric acid, pyronic acid, triphosphate, and polyphosphate hexametaphosphate.

Carbonate salts include alkaline metal (sodium, potassium, etc.) salts, ammonia carbonates, sodium bicarbonate, and sesquicarbonates.

Chelating agents are the basic metals (sodium, sodium, ethylenediaminetetraacetic acid, hydroxyethylethylenediaminetriacetic acid, hydroxyethyliminodiacetic acid, dihydroxyglycine ethyl ester, hydroxyethyldiphosphonate) Potassium, etc.) salts, ammonium salts, etc. have been proposed.

In addition, the detergent liquid of this embodiment is PH7 to PH12, preferably PH8 to PH11. In this way, the detergent liquid system is almost weakly alkaline, so it has the advantage of being less corrosive to metal objects to be cleaned (for example, the electrode plate of a dust collecting electrode).

In the cleaning device 1 of this embodiment, a cleaning method using air bubbles is used. That is, in the above-mentioned cleaning agent liquid injected into the cleaning tank 3, the object to be cleaned U is immersed, and the air made by the foaming of the air is ejected into the cleaning agent liquid, thereby washing, The detergent solution was stirred. The cleaning agent liquid of this embodiment is an air bubble cleaning method with a poor cleaning ability compared with a cleaning liquid containing a surfactant, and has a larger cleaning agent liquid compared to other cleaning methods. Because of the stirring force, the washing force can be effectively cleaned by the stirring force.

That is, if the detergent liquid of this embodiment is used to slightly soften and dissolve the dirt itself which is strongly adhered to the object to be cleaned, such as cutting oil, it can be reliably removed by the stirring force of air bubbling. Dirt can be effectively cleaned. Therefore, the detergent liquid of this embodiment can fully utilize the advantages of air foaming.

In addition, the detergent liquid used in the air foaming and washing method of this embodiment does not contain a surfactant and does not have a cloud point. Therefore, generation of bubbles can be suppressed. In addition, the detergent liquid of this embodiment does not have a cloud point, so even if a cleaning method using air foaming to lower the temperature of the detergent liquid is used, it is not necessary to keep the temperature of the detergent liquid slightly higher than the cloudiness. Point temperature control. Therefore, a large-scale heating device is not required, and the lack of high cost can be solved.

The detergent solution may not contain an antifoaming agent. If the antifoaming agent is not contained, the generation of air bubbles can be more effectively suppressed when the dirt to be cleaned contains foaming substances such as oils and fats, or when it includes those that induce alkalization with alkalinity.

In addition, it is preferable to use an organic acid-free detergent solution. If organic acid is not contained, corrosion of the object to be cleaned can be prevented, and the durability of the object to be cleaned due to washing can be suppressed.

Next, a cleaning method performed using the cleaning device 1 will be described.

This washing method consists of (1) an immersion step of immersing the object to be washed into a detergent solution, (2) a washing step of rinsing the object to be washed, (3) a washing step of rinsing the object to be washed, ( 4) The order of the water removal process which removes the water of a to-be-washed object is performed.

In the dipping step (see FIG. 10A), the detergent liquid is injected into the washing tank 3 and the objects to be washed are stored at the same time. First, a detergent solution (about 150 liters) diluted about 20 times is injected into the washing tank 3. The detergent liquid is, for example, 7.5 liters of detergent diluted with, for example, 142.5 liters of room temperature water.

In addition, the detergent which has the composition shown below is proposed as an example. That is, the detergent is composed of 15% sodium silicate, 5% sodium pyrophosphate, 3% sodium bicarbonate, and 3% ethylenediaminetetraacetic acid. It is composed of sodium and an aqueous solution of 74%.

When the detergent liquid is poured into the washing tank 3, the basket 25 containing the objects to be washed is immersed in the detergent liquid in the washing tank 3. The basket 25 containing the objects to be cleaned may be stored in the washing tank 3 first, and then a detergent solution may be injected into the washing tank 3.

Next, in the washing step (refer to FIG. 10B), the operator sets the switching link 5 to the horizontal direction and operates the blower drive switch of the operation display unit 10. Thereby, the blower 18 is driven, and air is supplied into the conveying pipe 19 from the blower 18 to the diffuser pipes 11.

The supplied air passes from the conveying pipe 19 through the three-way valve 20 and passes through the conveying pipe 21, and the fine holes 12 of the diffuser pipe 11 are ejected from the cleaning tank 3. As shown in FIGS. 7 and 9, the air sprayed into the cleaning tank 3 does not directly collide with each other and is widened. Therefore, the detergent liquid in the cleaning tank 3 may turbulently flow. With the sprayed air, the detergent solution can be fully stirred. Therefore, the multiplying effect of the stirring power of air foaming and the alkaline detergent liquid containing no surfactant can suppress the generation of air bubbles while exerting the cleaning power better to clean the bed. Wash things.

When the driving time of the blower 18 reaches a predetermined time (for example, about 30 minutes), the washing process ends. In this case, the operator may set the washing time in advance by using the timer switch of the operation display unit 10, and the timer switch counts the washing time, thereby ending the washing process, or by operating the blower stop switch, The washing process is completed.

In the washing step (see FIG. 10C), the object to be washed is washed. Specifically, the basket 25 containing the object to be cleaned is taken out from the cleaning tank 3, and tap water is injected into the object U to be cleaned. Thereby, the detergent liquid adhering to this to-be-cleaned object U is wash | cleaned.

After the washing step is completed, a moisture removal step is performed (see FIG. 10D). In the moisture removal step, the object to be cleaned is taken out from the basket 25 and placed in a suitable place beside the cleaning device 1. Next, the operator operates the switching link 5 of the cleaning device 1 from a horizontal direction to a vertical direction. Thereby, the opening and closing of the three-way valve 20 changes the conveying path of air from the blower 18, and the air is switched from the paths of the air diffusing pipes 11 of the washing tank 3 to the outside of the washing tank 3 The path from the hole 23 to the external hose 6.

Next, the operator operates the blower drive switch of the operation display unit 10 while the pointed port of the external hose 6 faces the object U to be washed. Thereby, the blower 18 is driven again, and air is supplied into the conveying pipe 22 from the blower 18 to the outer hole 23. The supplied air is sprayed through the outer hole 23 from the 6-point port of the outer hose. Therefore, the air sprayed from the external hose 6 collides with the object to be cleaned, whereby the moisture adhering to the surface of the object to be cleaned U is blown away by the air.

In addition, the blower 18 emits air at a higher temperature than an air compressor or the like, so that it is very suitable for blowing the water of the object to be washed. In addition, after the moisture removal step (FIG. 10D), it is preferable to sufficiently dry the object to be washed when a standing time of about 1 to 2 hours is set. In the moisture removal step (FIG. 10D), after the object to be washed is taken out from the basket 25, the basket 25 may be turned over to place the object to be washed on the bottom of the basket 25 and air may be supplied.

Previously, when the object to be washed was dried after washing as described above, the object to be washed was placed in a cool place for about half a day, etc. However, the air blown through the external hose 6 from the blower 18 was used Moisture is blown off, and the moisture removal process can be completed in about several minutes (Fig. 10D). After that, even if a standing time of several hours is desired, the drying time can be greatly shortened.

In the above-mentioned embodiment, although the washing step (FIG. 10B) and the washing step (FIG. 10C) are performed in one washing device 1, two washing devices 1 may be used on one side. The washing device 1 performs washing, and the washing device 1 on the other side performs washing. In this way, when there are a plurality of the objects to be cleaned U, each of the cleaning devices 1 can be washed and washed at almost the same time, or the water can be removed (blow-off). Reduced overall cleaning time.

As described above, the air conveyance path from the blower 18 is switched by the three-way valve 20, so that the air supplied from the blower 18 can be used for bubbling the air at the time of washing, and at the same time, It is used to remove the water from the object. Therefore, it is possible to provide a cleaning method of the cleaning device 1 with high usability.

In this embodiment, in the washing process and the moisture removal process by air bubbling, the relatively small discharge pressure can be used to carry out the washing and moisture blowing. Therefore, as long as the relatively small discharge pressure is used, The blower 18 is sufficient. Therefore, it is not necessary to use a large-sized air compressor including a large discharge pressure, and therefore, the cost of the cleaning device 1 can be reduced.

In addition, the scope of the present invention is not limited to the embodiments described above, and various changes can be made without departing from the scope of the invention. For example, the cleaning device 1 is not limited to those described in the above embodiment. The shape of each component of the casing 2, the cleaning tank 3, the water pipes 11, the blower 18, the three-way valve 20, and the like , Size and quantity, etc., can be changed as needed.

‧‧‧Washing device

‧‧‧Shell

‧‧‧Washing tank

4‧‧‧ convex section

5‧‧‧Switching link

6‧‧‧External hose

7‧‧‧ Drain pipe

8‧‧‧ roller

9‧‧‧ drain

10‧‧‧ operation display

11‧‧‧ diffuser

12‧‧‧ fine holes

13‧‧‧ Defoaming tank

14‧‧‧ Bubble moving board

15‧‧‧ Outflow

16‧‧‧ return tube

17‧‧‧ Inlet

18‧‧‧ blower

19, 21, 22‧‧‧ Conveying pipe

20‧‧‧Three-way valve

23‧‧‧outer hole

25‧‧‧ basket

26‧‧‧ spacer member

L‧‧‧Lead straight

O‧‧‧Axis

R‧‧‧Straight

U‧‧‧ to be washed

α‧‧‧ angle

FIG. 1 is a perspective view of a cleaning device of a cleaning method according to a preferred embodiment of the present invention. Fig. 2 is a perspective view of the interior as seen from the side of the cleaning device shown in Fig. 1; Fig. 3 is a perspective view of the interior of the cleaning device shown in Fig. 1 as viewed from the upper surface. Fig. 4 is an internal perspective view of the cleaning device shown in Fig. 1 as viewed from the front. FIG. 5 is a perspective view of a basket for accommodating objects to be cleaned in a preferred embodiment of the present invention. FIG. 6 is a top view of the air diffuser in a preferred embodiment of the present invention. FIG. 7 is a partial detailed view of the air diffusing pipe in the ejection direction of the air being ejected from the air diffusing pipe in a preferred embodiment of the present invention. FIG. 8 is a cross-sectional view of a diffuser in a preferred embodiment of the present invention. FIG. 9 is a view showing the ejection direction of the air being ejected from the self-dispersing tube in a preferred embodiment of the present invention, which is a view seen from the cross-sectional direction of the self-dispersing tube. FIG. 10A is a dipping process of the present invention in a preferred embodiment. FIG. 10B is a cleaning process of the present invention in a preferred embodiment. FIG. 10C is a washing process of the present invention in a preferred embodiment. FIG. 10D is a water removal process of the present invention in a preferred embodiment.

Claims (5)

A washing method includes: a washing tank for containing and washing a thing to be washed; an air supply source for supplying air; and a conveying path for air supplied from the air supply source, Conveying to the washing tank is characterized by: an immersion step, injecting an aqueous solution containing a detergent solution into the washing tank, immersing the object to be cleaned stored in the washing tank into the aqueous solution; and The cleaning process drives the air supply source to spray air into the aqueous solution injected into the washing tank, thereby washing the object to be cleaned; the detergent liquid system contains silicate, phosphate, and carbonate And an alkaline detergent solution containing at least one of a chelating agent without a surfactant; a washing process, after the washing process, taking out the object to be washed from the washing tank, and washing the object with water A washing process; a switching process that switches the transport path of air from the air supply source from the path to the washing tank to a path to the outside; and a moisture removal process, after the switching process, again Drive the air supply source. Wash for ejecting air to remove the moisture to be washed. The cleaning method according to item 1 of the scope of patent application, wherein the aqueous solution containing the detergent liquid further includes an antifoaming agent. A cleaning device using the cleaning method described in any one of item 1 or 2 of the scope of patent application, characterized in that the air supply source is composed of a rotary drive motor, and the air supply source is used for A blower for supplying air to one of the conveying paths. The air supply source includes: a switching mechanism that switches the conveying path of the air from the blower from the path to the washing tank to the outside of the cleaning device. A path; and an external spraying mechanism, which is connected to a path to the outside of the cleaning device to spray air to the outside. The cleaning device according to item 3 of the scope of patent application, wherein at the bottom of the cleaning tank, a path connected to the cleaning tank is arranged; a plurality of air diffusers are hollow and a plurality of surfaces are formed One of the fine holes is communicated with one end of each of the air diffusing tubes, and is spaced apart at a certain distance and arranged in parallel. The cleaning device according to item 4 of the scope of the patent application, wherein the fine holes are arranged in a staggered manner in the adjacent air ducts and are formed in a cross-sectional view of the air ducts. The lead straight line passing through the axial center of the air diffuser is used as a reference, and the lead straight line is at a surface position on a straight line having a predetermined angle.