JP2011021213A - Cleaning method, cleaning apparatus and drying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make an apparatus compact and to easily dry an object to be cleaned. <P>SOLUTION: A method is disclosed for cleaning the object to be cleaned in such a state that the object to be cleaned is housed in a cleaning basket, The method comprises the steps of: supplying a cleaning liquid to a treatment tank by using a cleaning liquid supply means to clean the object which is to be cleaned and is housed in the cleaning basket when the cleaning is performed; recovering the cleaning liquid which is supplied to the treatment tank by using the cleaning liquid supply means, into the cleaning liquid supply means after the cleaning is completed; supplying a rinsing liquid to the treatment tank by using a rinsing liquid supply means when the rinsing is performed; recovering the rinsing liquid which is supplied to the treatment tank by using the rinsing liquid supply means, into the rinsing liquid supply means after the rinsing is completed; using a drying means having a nozzle, putting the nozzle in the cleaning basket in the treatment tank, blowing hot air against the object to be cleaned, and discharging a liquid, which is generated when the object to be cleaned is dried, from the treatment tank by using a discharge means when the drying is performed; and withdrawing the nozzle from the cleaning basket and the treatment tank by using the drying means after the drying is completed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cleaning method, a cleaning apparatus, and a drying apparatus.

  Conventionally, in order to clean an object to be cleaned such as a metal product with an aqueous cleaning liquid, a multi-tank type cleaning apparatus configured by arranging a cleaning tank, a rinsing tank, and a drying tank in a row is used. Using this cleaning device, the objects to be cleaned in the cleaning tub are moved along each tank, washed in the cleaning tank containing the cleaning liquid, rinsed in the rinsing tank containing the rinsing liquid, and blown with hot air. It was drained and dried in a dry tank (for example, see Patent Documents 1 and 2).

Japanese Patent No. 3184672 Japanese Patent Publication No. 7-103470

However, since the conventional cleaning apparatus is composed of a multi-tank system in which a cleaning tank, a rinsing tank, and a drying tank are arranged in a row, there is a problem that the apparatus becomes large.
In general, a hydrocarbon-based cleaning liquid is used as the cleaning liquid, and water is used as the rinsing liquid. However, the hydrocarbon-based cleaning liquid and water have high latent heat, and particularly, water has high latent heat. For this reason, there is a problem that the object to be cleaned is difficult to dry as long as hot air is blown into the drying tank.

  An object of the present invention is to provide a cleaning device, a cleaning method, and a drying device capable of downsizing the device and easily drying an object to be cleaned.

  According to one aspect of the present invention, in the method of cleaning in a state in which an object to be cleaned is stored in the cleaning bowl, the cleaning liquid is supplied to the treatment tank using the cleaning liquid supply means and stored in the cleaning bowl at the time of cleaning. The object to be cleaned is cleaned, and after cleaning, the cleaning liquid supplied to the treatment tank is recovered by the recovery means to the cleaning liquid supply means, and the rinse liquid is supplied to the processing tank by the rinse liquid supply means at the time of rinsing. Then, after the rinsing is completed, the rinsing liquid supplied to the treatment tank is collected in the rinsing liquid supply means by using the collecting means, and when drying, the nozzle is removed from the treatment tank by using a drying means having a nozzle. The hot air is blown into the object to be cleaned by making it enter the cleaning tub, and the liquid discharged at the time of drying is discharged from the processing tank using the discharging means, and after drying, the nozzle is connected to the cleaning tub and the nozzle using the drying means. From the treatment tank Cleaning method for out is provided.

According to another aspect of the present invention, a treatment tank that secures hermeticity for treating an object to be washed contained in a washing bowl, a cleaning liquid supply means for supplying a cleaning liquid to the processing tank, and a rinsing liquid in the processing tank A rinsing liquid supply means for collecting the cleaning liquid in the processing tank, the recovery means for recovering the rinsing liquid in the processing apparatus to the rinsing liquid supply means, and a liquid in the processing tank. A discharge means for discharging, a nozzle insertion hole provided in the processing tank, and a drying means for injecting hot gas from the nozzle inserted through the nozzle insertion hole and moving forward and backward in the processing tank And a sealing unit that hermetically seals between the nozzle and the nozzle insertion hole, and a control unit, wherein the control unit supplies a cleaning liquid to the processing tank at the time of cleaning Control the cleaning liquid supply means After the cleaning, the recovery means is controlled to recover the cleaning liquid supplied to the processing tank to the cleaning liquid supply means, and the rinsing liquid supply means is controlled to supply the processing liquid to the processing tank at the time of rinsing. After the completion, the recovery means is controlled to recover the rinse liquid supplied to the treatment tank to the rinse liquid supply means, and when drying, the nozzle is caused to enter the cleaning tank of the treatment tank to cause the hot gas to flow. The drying means is controlled so as to spray the object to be cleaned, and the discharging means is controlled so as to discharge the liquid discharged during drying from the processing tank, and after drying, the nozzle is retreated from the cleaning tub and the processing tank. A cleaning device is provided which controls the drying means.

  According to another aspect of the present invention, a drying tank for drying an object to be cleaned contained in a cleaning basket, a nozzle insertion hole provided in the drying tank, and a nozzle inserted in the nozzle insertion hole for the drying. There is provided a drying apparatus having a nozzle that advances and retreats in the tank, and includes a drying unit that ejects hot gas from the nozzle and a sealing unit that hermetically seals between the nozzle and the nozzle insertion hole. .

  According to the present invention, it is possible to reduce the size of the apparatus and easily dry an object to be cleaned.

It is a schematic longitudinal cross-sectional view of the washing | cleaning apparatus by one embodiment of this invention. It is a detailed top view of the drying means by one embodiment of the present invention, (a) is a figure at the time of nozzle advance, and (b) is a figure at the time of nozzle retreat. It is explanatory drawing which shows the washing | cleaning process by one embodiment of this invention. It is explanatory drawing which shows the washing | cleaning liquid collection | recovery process by one embodiment of this invention. It is explanatory drawing which shows the process tank rinse process by one embodiment of this invention. It is explanatory drawing which shows the rinse process by one embodiment of this invention. It is explanatory drawing which shows the rinse liquid collection | recovery process by one embodiment of this invention. It is explanatory drawing which shows the drying process by one embodiment of this invention. It is a schematic longitudinal cross-sectional view of the washing | cleaning apparatus which expanded the washing | cleaning liquid storage tank and the rinse liquid storage tank by other embodiment of this invention. 1 is a perspective view of a cleaning bowl according to an embodiment of the present invention.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

  As already described, in the water-based cleaning apparatus, the cleaning apparatus is configured so that the object to be cleaned is moved along these tanks as a multi-tank type in which cleaning tanks, rinsing tanks, and drying tanks are arranged in a row. Increase in size. In addition, since a liquid having a large latent heat is used for the cleaning liquid and the rinsing liquid, the object to be cleaned is difficult to dry even if hot gas is supplied to the object to be cleaned from the outside of the cleaning basket. According to the embodiment of the present invention, the cleaning, rinsing, and drying processes are made into a single tank type that is shared by a single processing tank. Spray the item to be cleaned. In this way, instead of moving the object to be cleaned along a plurality of tanks arranged in the order of cleaning, rinsing and drying processes, the cleaning, rinsing and drying processes are shared by one processing tank, and each time the process changes Since the processing liquid in the processing tank is moved, the size can be reduced. Moreover, it becomes possible to dry a to-be-cleaned object easily by supplying hot gas directly in the washing tank of a processing tank at the time of drying.

FIG. 1 is a schematic cross-sectional view showing a cleaning apparatus 100 according to an embodiment of the present invention.
The cleaning apparatus 100 mainly includes a processing tank 110, a cleaning liquid supply unit 120, a rinsing liquid supply unit 130, a liquid recovery unit 140, a drying unit 150, a sealing unit 160, and a control unit 170.

[Treatment tank]
The processing tank 110 is composed of a chamber that ensures airtightness. A cleaning liquid, a rinsing liquid, and hot air are selectively supplied to the processing tank 110 so that the object to be cleaned can be cleaned, rinsed, and dried in a single tank, that is, a single tank. Such washing, rinsing, and drying are simply referred to as processing.

  The processing tank 110 is provided with an ultrasonic vibrator 111 so as to apply vibration to the cleaning liquid or the rinsing liquid in the processing tank 110 during the cleaning or rinsing process.

  Further, a nozzle insertion hole 115 is provided in the processing tank 110, and the nozzle 151 for supplying hot gas (hot air) from the nozzle insertion hole 115 is advanced and retracted during the drying process. An exhaust pipe 112 provided with an exhaust throttle valve 113 is connected to the upper part of the processing tank 110, and when hot air is ejected from the nozzle 151, the processing tank 110 is evacuated and the pressure in the processing tank 110 reaches a predetermined value. It does not exceed.

  Examples of objects to be cleaned to be processed in the processing tank 110 include metal processed products, press processed products, die casts, resin molded products, various panels, and die-cut products. These objects to be cleaned are accommodated in a cleaning bowl 180 for processing.

  The cleaning basket 180 is composed of a net-like or lattice-like basket that accommodates an object to be cleaned, and has various shapes. A round basket is useful when it is desired to rotate the cleaning bowl 180. Here, a rotation-only round basket called a rotary basket is used.

  As shown in FIG. 10, this rotation-only round basket 180a has circular ridges 181 at both ends, and has net-like or lattice-like double cylinders 182 and 183 at the center of the ridges. The center portion of the flange 181 and the cylinders 182 and 183 are hollowed in the axial direction, and the nozzle 151 can be inserted into the hollowed central portion. Accordingly, the cleaning rod 180 can perform cleaning, rinsing, and drying while rotating the object to be cleaned accommodated in the space between the double cylinders 182 and 183.

  Returning now to FIG. The treatment tank 110 is provided with a motor 114 as a rotation driving means for rotating the cleaning tub 180 so as to rotate the cleaning tub 180. As the rotation mechanism, for example, a pair of rollers 116 is disposed below the processing tank 110 so as to face the horizontal direction. One roller 116 is a driving roller that is rotationally driven by a motor 114, and the other roller 116 is a driven roller that is rotated by a rotational force transmitted from the driving roller by a gear means or the like. The cleaning rod 180 is supported horizontally across the pair of rollers 116. By rotating one drive roller 116 by the motor 114 and rotating the other driven roller 116 by the gear mechanism, the cleaning rod 180 rolls in the chamber around the shaft center.

[Cleaning liquid supply means]
The cleaning liquid supply means 120 has a cleaning liquid storage tank 121. The cleaning liquid storage tank 121 is also a cleaning liquid storage tank for supplying the cleaning liquid stored in the processing tank 110 to the processing tank 110, and is also a cleaning liquid recovery tank for recovering the cleaning liquid supplied to the processing tank 110 from the processing tank 110. The cleaning liquid storage tank 121 is provided so that its liquid level is lower than the liquid level of the processing tank 110, and collects the liquid discharged from the processing tank 110 by gravity. The cleaning liquid storage tank 121 is connected to the processing tank 110 via a cleaning liquid supply pipe 122. The cleaning liquid supply pipe 122 is provided with a cleaning liquid throttle valve 123, a cleaning liquid pump 124, and a filter 125. The cleaning liquid pump 124 draws the cleaning liquid from the cleaning liquid storage tank 121 and supplies it to the processing tank 110 while being filtered. . The cleaning liquid storage tank 121 is provided with a heater 126 so as to heat the cleaning liquid to a predetermined temperature.
The cleaning liquid performs, for example, degreasing cleaning of machining oil such as precision parts of moving vehicle parts, cleaning of flux, and degreasing cleaning of metal processing oil. As the cleaning liquid, for example, hydrocarbon-based or ultrapure water, pure water, water or the like is used. Moreover, a light detergent, alkaline electrolyzed water, a rust preventive agent, IPA or ethanol, and a fluorine-type solvent may be used as a washing | cleaning adjuvant.

[Rinsing liquid supply means]
The rinsing liquid supply means 130 has a rinsing liquid storage tank 131. The rinsing liquid storage tank 131 is also a rinsing liquid storage tank for supplying the rinsing liquid stored in the processing tank 110 to the processing tank 110, and a rinsing liquid recovery tank for recovering the rinsing liquid supplied to the processing tank from the processing tank 110. is there. The rinsing liquid storage tank 131 is provided adjacent to the cleaning liquid storage tank 121 so that the liquid level is lower than the liquid level of the processing tank 110, and collects the liquid discharged from the processing tank 110 by gravity. It has become. The rinsing liquid storage tank 131 is connected to the processing tank 110 via a rinsing liquid supply pipe 132. The rinsing liquid supply pipe 132 is provided with a rinsing liquid throttle valve 133, a rinsing liquid pump 134, and a filter 135. The rinsing liquid pump 134 draws the rinsing liquid from the rinsing liquid storage tank 131 and supplies it to the treatment tank 110 while filtering it. It is supposed to be. The rinse liquid storage tank 131 is provided with a heater 136 to heat the rinse liquid at a predetermined temperature.
For example, water, pure water, or ultrapure water is used as the rinsing liquid.

  Since the cleaning liquid storage tank and the rinsing liquid storage tank described above manage the liquid supplied to the processing tank for each process, the cleaning liquid storage tank and the rinsing liquid storage tank are referred to as management tanks.

[Discharge means]
The discharging unit 145 discharges the liquid in the processing tank 110.
A discharge pipe 146 provided with a throttle valve 147 is connected to the bottom of the processing tank 110, and the liquid in the processing tank 110 can be discharged to the drain while adjusting the flow rate with the throttle valve 147. The throttle valve 147 and the discharge pipe 146 constitute a discharge means 145.
[Liquid recovery means]
The liquid recovery means 140 recovers the cleaning liquid in the processing tank 110 to the cleaning liquid supply means 120 and recovers the rinsing liquid in the processing tank 110 to the rinsing liquid supply means 130.
A branch pipe 141 for collecting the liquid in the processing tank 110 is connected to the discharge pipe 146 at the bottom of the processing tank 110, and the recovery destination of the liquid discharged from the processing tank 110 is connected to the branch pipe 141 in the cleaning liquid. A switching valve 142 for switching to the storage tank 121 or the rinse liquid storage tank 131 is provided. The inflow side port of the switching valve 142 is connected to the branch pipe 141, one of the outflow side ports is connected to the cleaning liquid storage tank 121, and the other of the outflow side ports is connected to the rinsing liquid storage tank 131. The washing liquid storage tank 121 or the rinsing liquid storage tank 131 can be recovered. The branch pipe 141 and the switching valve 142 described above constitute the liquid recovery means 140.

[Drying means]
The drying means 150 adopts a hot air system with improved thermal efficiency and performs drying in a short time. The drying means 150 includes a nozzle 151 that is inserted into the nozzle insertion hole 115 and advances and retreats in the processing tank 110, a high-pressure hot air generator 155 that generates high-pressure hot air and supplies the nozzle to the nozzle, and the nozzle 151. And an actuator 153 that moves forward and backward in the processing tank 110. In the non-drying process (cleaning process, rinsing process), the nozzle 151 is withdrawn from the processing tank 110 so that the nozzle 151 does not interfere with the cleaning basket 180, and in the drying process, the nozzle 151 enters the cleaning basket 180 in the processing tank 110. Thus, high-pressure hot air is ejected from the inside of the washing tub 180.
The nozzle 151 may be provided with a plurality of injection holes dispersed around the entire circumference of the nozzle. However, as shown in FIG. 10, a plurality of injection holes 152 may be provided at equal intervals in the upper portion. . When drying the cleaning basket 180 while rotating, for example, if the injection holes 152 are provided at equal intervals in the upper row, the hot air is blown evenly from below on the object to be cleaned, so that draining can be performed. Also, the drying efficiency is increased. Moreover, the hot air sprayed from the nozzle 151 can dry not only the object to be processed but also the inner wall of the processing tank 110.
The high-pressure hot air generator 155 can be configured by a blower 156, a heater 157 that heats the high-pressure air from the blower 156, a flexible duct 158 that guides the high-pressure hot air generated by the heater 157 to the nozzle 151, and the like. As the actuator 153, for example, a fluid cylinder is preferable, and an air cylinder is particularly preferable when an air supply source is provided in the factory.

The actuator 153 constituting the drying means 150 as described above can be configured as shown in FIG. 2, for example. As illustrated in FIG. 2, the drying unit 150 includes a long air cylinder 153 a provided on one side surface of the processing tank 110. The air cylinder 153a is provided so as to protrude in the forward / backward direction of the nozzle 151. The slider 153b of the air cylinder 153a is connected to the nozzle 151, and the nozzle 151 is advanced and retracted by the operation of the air cylinder 153a. The illustrated air cylinder 153a is a rodless type, for example, ORV25X350 manufactured by Koganei.
In addition, the code | symbol 152 attached | subjected to the nozzle 151 is the several injection hole provided in the upper row of the nozzle 151 mentioned above at equal intervals.

  By the way, as described above, the sealing means 160 that hermetically seals between the nozzle 151 and the nozzle insertion hole 115 is provided in order to ensure the airtightness of the processing tank 110. The sealing means 160 closes the nozzle insertion hole 115 provided in the side wall of the processing bath 110 at least at both the position when the nozzle is retracted (FIG. 2B) and the time when the nozzle enters (FIG. 2A). It is good to be configured as follows. For example, such a sealing means 160 can be configured as shown in FIG.

As shown in FIG. 2, the sealing means 160 includes first to third packings 161 to 163.
A first packing 161 is fitted on the inner periphery of the nozzle insertion hole 115 formed in the processing tank 110. The first packing has a substantially cylindrical shape. A second packing 162 is fitted on the outer periphery of the tip of the nozzle 151 that is inserted into the processing tank 110 from the nozzle insertion hole 115. The second packing 162 has a cap shape so as to cover the nozzle tip. Further, a third packing 163 is fitted on the outer periphery of the nozzle intermediate portion that will be positioned in the nozzle insertion hole 115 when the nozzle 151 is entered. The third packing 163 has a cylindrical shape.

  The inner surface of the portion on the processing tank side of the first packing 161 and the outer surface of the second packing 162 are formed with a taper surface that can be brought into close contact with each other, and the tapered surface is reduced in diameter toward the nozzle retracting direction. Is formed. Further, a taper surface that can be in close contact with each other is formed on the inner surface of the portion of the first packing 161 opposite to the treatment tank 110 and the outer surface of the third packing 163, and the taper surface faces the nozzle entry direction. To reduce the diameter. Thus, when the nozzle 151 enters the processing tank 110 (FIG. 2A), the processing tank 110 is hermetically sealed by the first packing 161 and the third packing 163. . When the nozzle 151 is retracted from the processing tank 110 (FIG. 2B), the processing tank 110 is hermetically sealed by the first packing 161 and the second packing 162. .

  A tip support member 165 that supports the tip of the nozzle 151 that has entered the processing tank 110 is provided on the inner wall of the processing tank 110 so as to support the tip of the nozzle 151 that has entered.

[Control unit]
Returning to FIG. A controller 170 is provided for controlling the cleaning process, the rinsing process, and the drying process by opening and closing the valve, driving the motor, moving the nozzle back and forth, and the like. The controller 170 controls the cleaning liquid supply means 120 to supply the cleaning liquid to the processing tank 110 during cleaning, and controls the recovery means 140 to recover the cleaning liquid supplied to the processing tank 110 to the cleaning liquid storage tank 121 after cleaning. To do. At the time of rinsing, the rinsing liquid supply means 130 is controlled so as to supply the rinsing liquid to the processing tank 110, and the recovery means 140 is controlled so that the rinsing liquid supplied to the processing tank 110 is collected in the rinsing liquid storage tank 131 after the rinsing is completed. . During drying, the nozzle 151 is moved into the cleaning tub 180 of the processing tank 110 to control the drying means 150 so that hot gas is blown onto the object to be cleaned, and the liquid discharged during the drying is discharged from the processing tank 110. The means 145 is controlled, and after drying, the drying means 150 is controlled so that the nozzle 151 is withdrawn from the cleaning tub 180 and the processing tank 110.

  Next, each process implemented using the washing | cleaning apparatus of the above structures is demonstrated in FIGS.

In FIG. 1, the ultrasonic vibrator 111 and the heaters 126 and 136 are operated to put the cleaning device in an operating state. The nozzle 151 of the drying means 150 is retracted from the processing tank 110 by the air cylinder 153a to make the processing tank 110 airtight. Further, the high-pressure hot air generator 155 is turned off. The switching valve 142 closes the two outflow ports, and the cleaning liquid throttle valve 123, the rinsing liquid throttle valve 133, and the discharge throttle valve 147 are all closed. The exhaust throttle valve 113 is kept open.
For example, the rotation basket size as the cleaning basket 180 is φ200 mm × 220 mm, the object to be cleaned is a metal cutting product, and the deposit is abrasive powder.

[Washing process]
As shown in FIG. 3, after the throttle valve 123 of the cleaning liquid storage tank 121 is opened, the cleaning liquid pump 124 of the cleaning liquid storage tank 121 is operated, and the cleaning liquid stored in the cleaning liquid storage tank 121 is filtered through the filter 125 while being supplied with the cleaning liquid supply piping. It supplies to the processing tank 110 through 122. At this time, excess gas in the processing tank 110 is expelled from the exhaust pipe 112. When the supply of the cleaning liquid is completed, the cleaning liquid pump 124 is stopped and the throttle valve 123 is closed. Thereafter, the cleaning bowl 180 containing the object to be cleaned is lowered to the treatment tank 110 by a conveying means (not shown) and is placed on the two rollers 116 to be in a rollable state. When the motor 114 is rotated, the cleaning bowl 180 rotates and the object to be cleaned rolls. The rotation of the motor 114 continues until the drying process. The object to be cleaned is immersed in, for example, a hydrocarbon-based cleaning liquid, and the dirt component on the surface is removed. Since the cleaning liquid is vibrated by the ultrasonic vibrator 111, the removal of dirt components from the object to be cleaned is enhanced.
For example, the ultrasonic transducer in the cleaning process is 400 W × 40 KHz, the temperature of the cleaning liquid is 40 ° C. to 50 ° C., and rotational cleaning.

  When the cleaning is completed as shown in FIG. 4, the cleaning liquid throttle valve 123 is closed, the cleaning liquid pump 124 is stopped, and the supply of the cleaning liquid is stopped. The switching valve 142 is operated to open the outflow port on the cleaning liquid storage tank 121 side, and the used cleaning liquid in the processing tank 110 is collected from the bottom of the processing tank 110 into the cleaning liquid storage tank 121 through the branch pipe 141 by gravity. The collected used cleaning liquid may be re-used after being filtered.

[Rinsing process]
As shown in FIG. 5, when the used cleaning liquid is collected in the cleaning liquid storage tank 121, the switching valve 142 is turned off again, both output ports are closed, and the discharge throttle valve 147 provided in the discharge pipe 146 is opened. The rinsing liquid pump 134 is operated to supply the rinsing liquid in the rinsing liquid storage tank 131 into the processing tank 110 through the rinsing liquid supply pipe 132 while being filtered by the filter 135. The inside of the processing tank is rinsed by discharging the drainage from the discharge pipe 146 while supplying the rinsing liquid into the processing tank 110. If this flow of rinsing liquid is compared to a hot spring, it is a so-called pouring.

As shown in FIG. 6, when the rinsing of the treatment tank 110 is completed, the discharge throttle valve 147 is closed, the rinse liquid throttle valve 133 is opened, and the rinse liquid pump 134 is operated. The rinsing liquid is filtered by the filter 135 by the rinsing liquid pump 134 and supplied into the processing tank 110 through the rinsing liquid supply pipe 132. After supplying the rinsing liquid, the object to be cleaned is rinsed with the rinsing liquid stored in the treatment tank 110. The object to be cleaned is immersed in the rinsing liquid, and the cleaning liquid remaining on the surface is removed. Since the rinse liquid is vibrated by the ultrasonic vibrator 111, the removal of the cleaning liquid component from the object to be cleaned is enhanced.
For example, the ultrasonic vibrator in the rinsing process is 400 W × 40 KHz, the temperature of the rinsing liquid is 40 ° C. to 50 ° C., and the rotating rinsing is performed.

  As shown in FIG. 7, when the rinsing is completed, the rinsing liquid throttle valve 133 is closed, the rinsing liquid pump 134 is stopped, and the supply of the rinsing liquid is stopped. The switching valve 142 is operated to open the outflow port on the rinsing liquid storage tank side, and the used rinsing liquid in the processing tank 110 is collected from the bottom of the processing tank 110 into the rinsing liquid storage tank 131 through the branch pipe 141 by gravity. The collected used rinsing liquid may be reused after being filtered.

[Drying process]
As shown in FIG. 8, when the rinsing liquid is recovered, the switching valve 142 is closed again, and the throttle valve 147 of the discharge pipe 146 is opened. Further, the exhaust throttle valve 113 of the exhaust pipe 112 is opened. The air cylinder 153a is operated to cause the nozzle 151 of the drying means 150 to enter the processing tank 110 from the horizontal direction and to be inserted into the central portion of the axial center of the cylindrical cleaning basket 180. The high-pressure hot air generator 155 is turned on to eject high-pressure hot air from the nozzle 151 toward the object to be cleaned. By exhausting the high-pressure hot air from the exhaust pipe 112, the pressure in the processing tank 110 that is increased by the high-pressure hot air is released. A high-pressure gas is sprayed directly on the object to be cleaned from the inside of the cleaning bowl 180, not from the outside of the cleaning bowl 180. Since spraying is performed on the rotating object to be cleaned from the bottom to the top, the object to be cleaned is drained by high-speed centrifugation. As a result, drainage can be efficiently performed without damaging the object to be cleaned. Further, since the high-pressure hot air raised to the drying temperature is directly blown from the cleaning basket 180 to the rolling target object, not from the outside of the cleaning basket 180, the cleaning target is efficiently dried simultaneously with draining. To do. The liquid generated during draining / drying is discharged from the discharge pipe 146 to the drain.
For example, the hot air in the drying process is high-frequency air blow, the air is 50 Nl / min pressure 0.5 MPa or more, the hot air generator is 7.5 W wind pressure type, and rotary drying.

  After the drying process (process including draining, drying, and discharging), the high-pressure hot air generator 155 is stopped, the air cylinder 153a is operated, the nozzle 151 is pulled out of the cleaning tub 180, and is retracted from the processing tank 110. The motor 114 is stopped, and the cleaning rod 180 released from the interference of the nozzle 151 is transferred out of the processing tank 110 by the conveying means.

[Effect of the embodiment]
According to embodiments of the present invention, one or more of the following effects are provided.

(1) According to one or more embodiments of the present invention, since the nozzle is inserted into the rolling washing tub and the high-speed centrifugal drainage is performed, the washed object is not damaged. Efficiently drains the object to be cleaned.

(2) According to one or more embodiments of the present invention, a nozzle is inserted into the cleaning tub and hot air is applied from the inside of the cleaning tub so as to reliably hit the object to be cleaned from the nearest place. Therefore, the object to be cleaned can be efficiently dried.

(3) According to this embodiment, the object to be cleaned is not moved as in the prior art, but liquid or hot air is moved so that cleaning, rinsing and drying are performed in one treatment tank. As a result, the cleaning device is compact and can be used in narrow installation locations. For example, according to the present embodiment, the apparatus size that has conventionally been 3 m or more can be reduced to a size of 1.5 m.

[Other embodiments]
Next, another embodiment of the present invention having an additional management tank will be described.
In hydrogen-based cleaning, cleaning may be performed in stages such as primary cleaning, secondary cleaning,..., And even rinsing may be performed in stages such as primary rinsing, secondary rinsing, and so on. FIG. 9 is an explanatory view showing an embodiment of a cleaning apparatus for performing such stepwise processing.
The extension pipes 148b, 148c, 148d,... For connecting the extension cleaning liquid storage tanks 121b, 121c, 121d... Or the extension rinse liquid storage tanks 131b, 131c, 131d. . In this case, it is preferable in terms of effective use of the space that the additional cleaning liquid storage tanks 121b, 121c, 121d... Or the rinse liquid storage tanks 131b, 131c, 131d.

According to this embodiment, all the cleaning steps can be performed in one processing tank only by selecting the number of management tanks.
Further, since the additional cleaning liquid storage tank or rinsing liquid storage tank is arranged along the longitudinal direction of the drying means, the dead space that is formed by providing the drying means 150 can be effectively used, and the management tank The size of the cleaning device can be avoided while increasing the number of installations, and it can be used in narrow installation locations.

  In the above-described embodiment, the cleaning liquid or the rinsing liquid is pumped up and supplied to the treatment tank, but the liquid may be pushed up with compressed air instead of the pump. That is, by supplying the compressed air to each cleaning liquid storage tank and rinsing liquid storage tank, the cleaning liquid or the rinsing liquid can be supplied to the processing tank without using a pump. In particular, when there is an air supply source in the factory, it is not necessary to use a pump.

  In the above-described embodiment, only in the drying step, the nozzle is inserted into the treatment tank and the high-pressure hot air is injected, but the present invention is not limited to this. For example, in the cleaning step and the rinsing step, bubbles may be generated by inserting a nozzle and injecting high-pressure gas into the processing tank to assist cleaning and rinsing.

  Further, in the above-described embodiment, the cleaning liquid or the rinsing liquid (referred to as the cleaning liquid) is pumped up and supplied to be dropped and recovered, but the present invention is not limited to this. For example, the cleaning liquid or the like may be dropped to be collected and collected, or the cleaning liquid or the like may be pumped and collected and collected.

  Moreover, the drying means for advancing and retracting the nozzles of the above-described embodiments is not limited to the application to the single tank cleaning device of the present invention. It is also possible to apply to the drying tank which comprises the conventional multi-tank type washing | cleaning apparatus. According to this, there is provided a drying tank for drying an object to be cleaned contained in the cleaning bowl, a nozzle insertion hole provided in the drying tank, and a nozzle inserted into the nozzle insertion hole to advance and retreat in the drying tank. And since it is provided with the drying means which injects a hot gas from a nozzle, it becomes possible to perform drying reliably, eliminating a draining process. Furthermore, the airtightness of the drying tank can be maintained by providing a sealing unit that hermetically seals between the nozzle and the nozzle insertion hole.

In the above-described embodiment, the nozzle is inserted into the central portion of the central axis of the cleaning bowl, and hot air is ejected from the central portion. However, the nozzle insertion position of the present invention is not limited to this. For example,
The nozzle may not be inserted into the central portion of the cleaning rod, but may be inserted only outside the cleaning rod. Alternatively, in addition to inserting the nozzle from the central portion of the cleaning tub, a nozzle is also inserted outside the cleaning tub shifted from the central portion of the cleaning tub so that hot air is blown out from the central portion of the cleaning tub. Then, hot air may be ejected from the outside of the washing bowl. According to this, although the multi nozzle which consists of a plurality of nozzles is required, since the hot air from the outside assists the drying, the drying efficiency can be further improved.

Hereinafter, preferred embodiments of the present invention will be additionally described.
[Appendix 1]
In the method of cleaning with the object to be cleaned in the cleaning tub,
At the time of cleaning, the cleaning liquid is supplied to the processing tank by using the cleaning liquid supply means to clean the object to be cleaned contained in the cleaning tank, and after the cleaning, the cleaning liquid supplied to the processing tank by using the cleaning liquid supply means is used. Collected in the cleaning liquid supply means,
At the time of rinsing, the rinsing liquid is supplied to the processing tank using the rinsing liquid supply means, and after the rinsing is completed, the rinsing liquid supplied to the processing tank is recovered to the rinsing liquid supply means using the rinsing liquid supply means. ,
At the time of drying, the nozzle is made to enter the cleaning tub of the processing tank by using a drying means having a nozzle, and hot air is blown onto the object to be cleaned. A cleaning method in which the nozzle is discharged from the cleaning tank and the processing tank using the drying means after discharging and drying.

[Appendix 2]
A treatment tank that secures hermeticity for treating the object to be cleaned contained in the cleaning bowl, a cleaning liquid supply means for supplying a cleaning liquid to the processing tank, a rinsing liquid supply means for supplying a rinsing liquid to the processing tank, The cleaning liquid in the processing tank is recovered in the cleaning liquid supply means, the recovery means for recovering the rinsing liquid in the processing apparatus in the rinsing liquid supply means, the discharging means for discharging the liquid in the processing tank, and the processing tank A nozzle insertion hole provided; a nozzle that is inserted into the nozzle insertion hole and advances and retreats in the processing tank; and a drying unit that ejects hot gas from the nozzle; and the nozzle and the nozzle insertion hole. A cleaning device provided with a sealing means for hermetically sealing the space and a control means,
The control means controls the cleaning liquid supply means to supply the cleaning liquid to the processing tank at the time of cleaning, and controls the recovery means to recover the cleaning liquid supplied to the processing tank to the cleaning liquid supply means after cleaning. The rinsing liquid supply means is controlled to supply the rinsing liquid to the processing tank at the time of rinsing, and the rinsing liquid supplied to the processing tank is collected by the rinsing liquid supply means after the rinsing is completed. And controlling the drying means so that the hot gas is blown onto the object to be cleaned by allowing the nozzle to enter the cleaning tank of the processing tank during drying, and the liquid discharged during drying is discharged from the processing tank. A cleaning apparatus that controls the discharging means to control the drying means so that the nozzle is withdrawn from the cleaning tub and the processing tank after drying.

[Appendix 3]
The cleaning apparatus according to claim 2, further comprising a rotation driving unit that rotates the cleaning basket.

[Appendix 4]
The cleaning apparatus according to any one of appendices 2 and 3, wherein the drying means includes the nozzle, a high-pressure hot air generator that sends high-pressure hot air to the nozzle, and an actuator that moves the nozzle back and forth.

[Appendix 5]
The cleaning apparatus according to appendices 2 to 4, wherein the nozzle ejection hole is provided above.

[Appendix 6]
The cleaning apparatus according to any one of appendices 2 to 5, wherein the cleaning liquid supply means includes a cleaning liquid supply path and a cleaning liquid storage tank that supplies the cleaning liquid to the processing tank via the cleaning liquid supply path.

[Appendix 7]
The said rinse liquid supply means is a washing | cleaning apparatus of appendix 2-6 which has a rinse liquid supply path and the rinse liquid storage tank which supplies a rinse liquid to the said processing tank via this rinse liquid supply path.

[Appendix 8]
The recovery means includes a drainage channel connected to a lower portion of the treatment tank, a branch channel branched from the drainage channel, and a recovery destination of the liquid discharged from the treatment tank via the branch channel. The cleaning apparatus according to appendix 7, further comprising a switching valve for switching to the rinse liquid storage tank.

[Appendix 9]
The cleaning apparatus according to any one of appendices 7 to 8, wherein the cleaning liquid supply unit supplies the cleaning liquid to the processing tank by feeding compressed gas into the cleaning liquid storage tank and expelling the cleaning liquid from the cleaning liquid storage tank.

[Appendix 10]
The cleaning apparatus according to any one of appendices 7 to 9, wherein the rinsing liquid supply unit supplies the rinsing liquid to the processing tank by feeding compressed gas into the rinsing liquid storage tank and expelling the rinsing liquid from the rinsing liquid storage tank.

[Appendix 11]
The cleaning device according to any one of appendices 8 to 10, wherein an extension port for connecting an additional cleaning liquid storage tank or an additional rinse liquid storage tank is provided in the branch path.

[Appendix 12]
The cleaning apparatus according to appendix 11, wherein an additional cleaning liquid storage tank or an additional rinse liquid storage tank provided in the additional port is provided along the longitudinal direction of the drying means.

[Appendix 13]
A drying tank for drying the object to be cleaned contained in the cleaning bowl, a nozzle insertion hole provided in the drying tank, and a nozzle inserted into the nozzle insertion hole to advance and retreat in the drying tank, The drying apparatus provided with the drying means which injects hot gas from this nozzle, and the sealing means which seals between the said nozzle and nozzle insertion holes airtightly.

[Appendix 14]
The drying apparatus according to appendix 13, wherein the nozzle inserted into the nozzle insertion hole is configured to advance and retreat in a washing basket in the drying tank.
[Appendix 15]
The drying apparatus according to appendix 13, wherein the nozzle is composed of a multi-nozzle and is configured to advance and retreat inside and outside the cleaning tank in the drying tank.

DESCRIPTION OF SYMBOLS 100 Cleaning apparatus 110 Treatment tank 111 Ultrasonic vibrator 114 Motor 115 Nozzle insertion hole 120 Cleaning liquid supply means 124 Pump 130 Rinse liquid supply means 134 Pump 140 Recovery means 142 Switching valve 145 Discharge means 150 Drying means 151 Nozzle 160 Sealing means 170 Control Part 180 Cleaning bowl

Claims (3)

In the method of cleaning with the object to be cleaned in the cleaning tub,
At the time of cleaning, the cleaning liquid is supplied to the processing tank by using the cleaning liquid supply means to clean the object to be cleaned contained in the cleaning tank, and after the cleaning, the cleaning liquid supplied to the processing tank by using the cleaning liquid supply means is used. Collected in the cleaning liquid supply means,
At the time of rinsing, the rinsing liquid is supplied to the processing tank using the rinsing liquid supply means, and after the rinsing is completed, the rinsing liquid supplied to the processing tank is recovered to the rinsing liquid supply means using the rinsing liquid supply means. ,
At the time of drying, the nozzle is made to enter the cleaning tub of the processing tank by using a drying means having a nozzle, and hot air is blown onto the object to be cleaned. A cleaning method in which the nozzle is discharged from the cleaning tank and the processing tank using the drying means after discharging and drying. A treatment tank that secures hermeticity for treating the object to be cleaned contained in the cleaning bowl; and
Cleaning liquid supply means for supplying a cleaning liquid to the treatment tank;
A rinsing liquid supply means for supplying a rinsing liquid to the treatment tank;
Recovery means for recovering the cleaning liquid in the processing tank to the cleaning liquid supply means, and recovering the rinse liquid in the processing apparatus to the rinse liquid supply means,
Discharging means for discharging the liquid in the treatment tank;
Nozzle insertion hole provided in the treatment tank,
A drying unit that has a nozzle inserted into the nozzle insertion hole and advances and retreats in the processing tank, and a sealing unit that hermetically seals between the nozzle and the nozzle insertion hole. When,
A cleaning device comprising a control means,
The control means controls the cleaning liquid supply means to supply the cleaning liquid to the processing tank at the time of cleaning, and controls the recovery means to recover the cleaning liquid supplied to the processing tank to the cleaning liquid supply means after cleaning. The rinsing liquid supply means is controlled to supply the rinsing liquid to the processing tank at the time of rinsing, and the rinsing liquid supplied to the processing tank is collected by the rinsing liquid supply means after the rinsing is completed. And controlling the drying means so that the hot gas is blown onto the object to be cleaned by allowing the nozzle to enter the cleaning tank of the processing tank during drying, and the liquid discharged during drying is discharged from the processing tank. A cleaning apparatus that controls the discharging means to control the drying means so that the nozzle is withdrawn from the cleaning tub and the processing tank after drying. A drying tank for drying the objects to be cleaned contained in the cleaning bowl;
Nozzle insertion hole provided in the drying tank,
A drying unit that has a nozzle inserted into the nozzle insertion hole and advances and retreats in the drying tank; and a sealing unit that hermetically seals between the nozzle and the nozzle insertion hole. And a drying device.

Images