JP2001181900A - Cleaning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily achieve the electrolytic cleaning of a metal work irrespective of the size and shape thereof without using any electrolytic tank. SOLUTION: A cleaning electrode 13 having a cotton 18 or the like for infiltrating the cleaning solution is connected to a power supplier 11 to supply the current for electrolytic cleaning via a holder 12, and a cleaning electrode 14 to be conducive-connected to the work H is also connected thereto. In the electrolytic cleaning mode, the cleaning electrode 13 is energized, and the cotton 18 or the like is infiltrated with the cleaning solution S, and in this condition, the cleaning electrode 13 is abutted on the work H via the cotton 18 or the like, and the work is wiped, and the cleaning solution S is electrolyzed to achieve the electrolytic cleaning.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a cleaning device,
More specifically, resin molds for resin, glass, rubber, etc., various tools, various cutting tools, various jigs, metal jigs and metal mechanical parts, etc. Various stains such as a passivation film and oils formed on the surface are removed by electrolytic cleaning.

[0002]

2. Description of the Related Art Conventionally, for cleaning an object to be cleaned made of metal such as various molds and mechanical parts, the object to be cleaned is provided in an electrolytic cell provided with a positive electrode and a negative electrode and filled with an electrolytic solution. After the arrangement, electricity is supplied between the electrodes.

FIG. 12 shows a conventional general electrolytic cleaning apparatus 1.
The inside of the electrolytic cell 1a is provided with positive electrodes 2 and 3 connected to the power supply unit 1b and a grounded negative electrode 4 on which an object to be cleaned is arranged. After the electrolytic bath 1a is filled with the cleaning solution D for electrolysis, the object 5 to be cleaned is arranged on the minus electrode 4, and in this state, the electrolytic cleaning is performed by applying a required voltage between the electrodes for a required time. .

[0004]

As described above, in the conventional electrolytic cleaning, it is necessary to arrange the object to be cleaned in the electrolytic cell, so that it takes time and effort to prepare for cleaning and the like. There's a problem. For example, when cleaning a mechanical part assembled in a certain apparatus, the mechanical part must be once removed from the apparatus, placed in the electrolytic tank of the electrolytic cleaning apparatus to perform cleaning, and after cleaning, it must be assembled again to the apparatus. It takes time and effort. In addition, when cleaning a heavy mold or the like, it is necessary to disassemble the mold into a washable state and then use a lift or a hoist to dispose the mold in the electrolytic cell, which is more troublesome.

There is also a problem that the object to be cleaned is limited by the size of the electrolytic cell. That is, if the object to be cleaned is larger than the opening of the electrolytic cell, it cannot be physically stored in the electrolytic cell. Therefore, cleaning cannot be performed except for replacing the electrolytic cell with a larger electrolytic cell. Furthermore, the conventional electrolytic cleaning apparatus requires an electrolytic bath and the like, which increases the cost of the apparatus itself, and also requires a large amount of electrolytic cleaning solution during cleaning, which increases the running cost. The higher the size of the wash, the higher it will be. In addition, there is a problem that a space necessary for installation of the device must be secured.

The present invention has been made in view of the above-mentioned problems, and has as its first object to make it possible to easily perform electrolytic cleaning without placing an object to be cleaned in an electrolytic tank. . A second object is to enable electrolytic cleaning regardless of the size and shape of the object to be cleaned.
Further, a third object is to reduce the cost for electrolytic cleaning.

[0007]

In order to solve the above problems, the present invention provides a power supply for supplying a current for electrolytic cleaning,
At least one cleaning electrode connected to one of the positive electrode and the negative electrode of the power supply and to which an absorbent material for permeating the cleaning liquid is attached, and one end connected to the other of the positive electrode and the negative electrode of the power supply And at least one other conductive electrode having the other end conductively connected to the metal object to be cleaned, and when the cleaning object is wiped by infiltrating a cleaning liquid into the absorbent material, the cleaning electrode and Provided is a cleaning device having a configuration in which a conduction electrode is energized to electrolytically clean an object to be cleaned.

[0008] As described above, when the cleaning electrode, on which the absorbent material impregnated with the cleaning solution for electrolytic cleaning is attached, is brought into contact with the metal object to be cleaned while the current is being supplied, the permeate is absorbed. Bubbles of hydrogen gas electrolyzed by the electrolytic action from the cleaning liquid are generated, and the bubbles enter between the surface of the object to be cleaned and dirt, rust, etc., and the dirt and the like from the surface of the object to be cleaned can be lifted. Therefore, when the surface of the object to be cleaned is abutted and wiped using the electrode for cleaning, the surface of the object to be cleaned can be easily purified by lifting dirt and the like and wiping it off with an absorbent material.

As described above, the object to be cleaned does not need to be disposed in the electrolytic cell as in the prior art at the time of cleaning, and preparations required for cleaning can be simplified. That is, since the cleaning device of the present invention is composed of a power supply serving as a DC power supply and cleaning and conduction electrodes, the cleaning device can be easily carried, and the cleaning device is moved to a place where there is an object to be cleaned to perform cleaning. it can. For example, by mechanically connecting the conducting electrodes of the cleaning device of the present invention to the mechanical parts attached to the device and the like, and then washing as described above, it is possible to easily perform electrolytic cleaning without removing the device from the device or the like. In addition, electrolytic cleaning can be performed without moving a heavy mold or the like while being attached to the molding machine.

Further, even large dies and mechanical parts which were conventionally difficult to be accommodated in an electrolytic cell can be electrolytically cleaned by a simple cleaning apparatus without moving them. If the object to be cleaned is large, the efficiency of the cleaning operation can be improved by using a plurality of cleaning electrodes connected to the power supply. In this case, the distance between the positive and negative poles can be maintained properly, and by preventing dropping due to the distance between the positive and negative poles, maintaining conductivity and ensuring electrolytic action Can be.

As described above, the cleaning device of the present invention has a simple structure and requires only the amount of the cleaning liquid used for cleaning to permeate the absorbent material. Therefore, the cost of the device itself and the cost required for cleaning are reduced. Can be reduced. In normal electrolytic cleaning, a cleaning electrode is connected to the positive electrode side of the power supply,
It is preferable to connect the conducting electrode to the negative electrode side.
Depending on the application, reverse electrolysis, that is, the connection between the positive electrode side and the negative electrode side may be reversed.

Further, the power feeder is characterized in that it is capable of adjusting the value of the current flowing from the positive electrode side and includes a power supply stop control means for stopping the power supply when the cleaning electrode itself comes into contact with the object to be cleaned. Thus, by changing the voltage or current setting of the power supply, the current value on the positive electrode side is varied,
An electrolytic cleaning action can be exerted in an optimal state by setting an appropriate current value according to the size and shape of the object to be cleaned. In addition, if the power supply stop control means is provided, even if the absorbent material is broken during the cleaning operation and the cleaning electrode directly contacts the object to be cleaned, the power supply is immediately stopped. It is also possible to eliminate the possibility of damaging the object, and to easily perform the cleaning operation without any skill and without the careless trouble that the absorbent material is broken and the electrode comes into contact with the work.

Further, the cleaning electrode is detachably mounted on a holder, and is connected to a power feeder via the holder. With the detachable type, the cleaning electrodes of various shapes can be replaced, and the workability can be improved according to the size and shape of the object to be cleaned. For example, the cleaning electrode is formed in a flat plate shape if the cleaning portion is a wide flat surface or the like, and is formed into various shapes such as a rod shape, a spherical shape, a conical shape, and a round shape for the cleaning portion such as a concave portion. Electrolytic cleaning can be performed appropriately and efficiently.

According to the present invention, the holder is connected to the cleaning liquid supply means integral with or separate from the power supply, and the holder or the cleaning electrode forms a cleaning liquid supply passage communicating with the absorbent material. Then, the cleaning liquid is permeated into the absorbent material from the cleaning liquid supply means via the cleaning liquid supply path to enable continuous cleaning, and the holder or the cleaning electrode itself is cooled by the supplied cleaning liquid. Since the cleaning liquid permeated into the absorbent material is reduced by the electrolytic action, it is necessary to appropriately supply the cleaning liquid, but by appropriately supplying the cleaning liquid from the cleaning liquid supply means to the absorbent material through the holder and the cleaning liquid supply path as described above, The required amount of cleaning liquid can be secured and the electrolytic cleaning operation can be performed continuously. The cleaning liquid supply means is provided with a cleaning liquid tank and a pump for feeding separately or integrally with a power feeder, and the tank and the holder are connected by a hose or the like so as to be supplied by pump driving. Further, the cleaning liquid supply means other than the above may manually generate compressed air to send out the cleaning liquid.

In addition, during the electrolytic cleaning, the electrodes and the holder themselves may generate heat due to energization, thereby deteriorating workability and the like. However, by flowing the cleaning liquid through the cleaning liquid supply path formed as described above, the holder and the like can be used. Is cooled and the temperature rise of the electrode can be prevented. In order to further increase the cooling efficiency, a cleaning liquid supply path that circulates in a U-shape while having a communication hole with the absorbent material is formed, and is connected to the cleaning liquid supply path with a cleaning liquid tank, a feed hose, and a return hose. A cleaning valve may be provided on the return side to circulate the cleaning liquid in the cleaning electrode while adjusting the amount of the cleaning liquid flowing to the absorbent material.

Further, the holder is connected to air supply means separate from or integrated with the supply device, and forms an air flow passage in the holder or the cleaning electrode so that air supplied from the air supply means can be used. The cleaning electrode may be cooled. As the air supply means,
It is possible to use a compressed air forming machine such as a compressor and an air hose connected to the air flow passage, etc., and it is possible to efficiently cool by appropriately sending air. The air supply means may be used in combination with the cleaning liquid supply means to further enhance the cooling performance of the electrode.

It is preferable that the holder has a vibration generating means for vibrating the cleaning electrode, and that the cleaning electrode is vibrated when the object to be cleaned is abutted and wiped. Generally, the more bubbles generated by hydrogen gas or oxygen gas during electrolytic cleaning, the higher the cleaning power. In order to generate many bubbles by these hydrogen gas or oxygen gas, electrolysis is promoted by moving the cleaning electrode back and forth, left and right, etc. and stirring the cleaning liquid, but by providing the holder with vibration generating means as described above, The cleaning electrode can be vibrated and agitated at a required frequency only by holding the holder without moving, and a large amount of bubbles can be generated to improve the cleaning power. As the vibration generating means, a motor or the like is suitable. The motor can be driven to rotate at the required rotation speed by the above-described power supply device, and the required vibration frequency can be generated on the cleaning electrode.

Further, the absorbent material is attached to the tip of the cleaning electrode with a fiber material or so as to cover the tip from the tip to the root. As the fiber material, it is preferable to apply a fiber material having excellent cleaning liquid permeability and dirt wiping properties, and it is most preferable to use cloth such as flannel or toweling, cotton, or cotton covered with gauze, Cleaning work can be performed easily.

Further, the washing solution used may be any one of sodium hydroxide, potassium hydroxide, sodium carbonate and potassium carbonate, or two or more of these as main components, sodium diethyl pentaacetate, sodium sodium EDTA, It is preferable that any one of sodium citrate or two or more of these are used as a chelating agent and sodium gluconate as an auxiliary. The use of the above-mentioned alkaline electrolytic cleaning solution can easily exert the electrolytic action and also improve the foaming property.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a cleaning apparatus 10 according to a first embodiment of the present invention, which includes a box-shaped power supply 11, a holder 12 for mounting a cleaning electrode 13, and a conductive electrode 14 that is conductively connected to an object to be cleaned. ing.

FIG. 2A shows the holder 12 and the like. The holder 12 is formed in a substantially cylindrical shape so as to be easily gripped, and the outside is formed of a resin such as Duracon, polyacetal, polycarbonate, and bakelite. At the same time, nickel conducting inside to the cleaning electrode 13 is provided inside,
A conductive member 15 made of copper, aluminum, graphite, stainless steel or the like is provided. The conductive member 15 has a cleaning liquid supply path 16 circulating in a U-shape as shown in FIG.
Is formed.

The distal end of the holder 12 is a mounting portion 12a for the cleaning electrode 13, and the inside is formed in accordance with the outer shape of the cleaning electrode 13 of the mounting portion 12a, so that the cleaning electrode 13 can be detached with one touch. Further, a screw portion 12f for attaching the cover 17 is formed on the outer periphery of the mounting portion 12a. The end opening 16c of the cleaning liquid permeation path 16b is opened at the center of the mounting portion 12a.

On the other hand, an end 12b of the holder 12 on the connection side with the power supply 11 is connected to a power supply connection 12c connecting the conductive member 15 and the power supply 11, a supply side connection 12d to the cleaning liquid supply path 16 and a return side. The connection part 12e is provided. The return side connection portion 12e is provided with a throttle valve 12g, so that the amount of the cleaning liquid flowing to the cleaning liquid permeation path 16b can be adjusted by the opening / closing degree of the throttle valve 12g. The connection cord 26 from the power supply 11 is connected to the power supply connection 12c, and the transmission connection 12d and the return connection 12
The feed tube 28 and the return tube 29 from the power supply 11 are connected to e, respectively.

The cleaning electrode 13 attached to the mounting portion 12a of the holder 12 is formed of a rod-shaped conductive material, and in this embodiment, is formed of graphite.
In addition, other than graphite, materials such as titanium, stainless steel, platinum, and gold, and metals such as iron, stainless steel, and titanium plated with gold or platinum are also applicable. The length of the cleaning electrode 13 is determined when the cover 17 is attached.
The length is set so as not to protrude from the tip 17a. Further, inside the cleaning electrode 13, a flow path 13 a communicating with the cleaning liquid permeation path 16 b of the holder 12 is provided.
A large number of liquid holes 13b communicating with the flow path 13a are formed in the front end surface of the nozzle 3.

In the present embodiment, a cotton 18 which is a fiber material is attached to a tip 13c of the cleaning electrode 13 as an absorbent material, and a gauze 19 is covered. By doing so, the required amount of the cleaning liquid can be absorbed by the cotton 18 through the liquid hole 13b of the cleaning electrode 13, and even if the cotton 18 is directly wiped off during cleaning, the surface of the cotton 18 is protected by the gauze 19 and the cotton 18 is protected. Can be prevented from being separated by tearing.
In addition, various cloths, such as flannel and toweling, may be used as the absorbent material in consideration of the object to be cleaned.

The cotton 18 and the gauze 19 are used for the cleaning electrode 1.
3, a cover 17 having a tapered tip 17 a and having an opening 17 b is covered from the outside and screwed to the screw portion 12 f of the holder 12 to be attached, as shown in FIG. It is securely mounted between the inner surface 17c and the cleaning electrode 13. Note that, in order to enhance the attachment, a large number of minute projections may be provided on the inner surface 17c of the cover 17. In the above mounting state, since the cleaning electrode 13 is located inside the cover 17 and only the cotton 18 and the gauze 19 protrude from the tip 17a of the cover 17, even if the cotton or the like is worn away as long as the flat surface is cleaned, the cleaning electrode 13 is removed. 13 directly contacts the object to be cleaned and prevents damage to the work.

The above-described holder 12, cleaning electrode 13 and the like are merely examples of the embodiment, and various additions and changes can be made in accordance with the use conditions and the like. The electrode itself may be cooled by forming a cleaning liquid supply path and a cleaning liquid permeation path circulating inside the electrode.

On the other hand, as shown in FIG. 1, a power supply 11 for supplying a DC power supply for electrolytic cleaning includes a positive terminal 11a, a negative terminal 11b, a voltage adjusting dial 1
1c, work status display section 11d, main power switch 1
1e, cleaning liquid supply switch 11f, cleaning liquid feed connection 1
1 g, washing liquid return connection part 11 h, start button 11
i, various display lamps 11j and the like are provided, and a cleaning liquid tank 23 is also provided. In addition to the above, a timer, a current integrator, and the like may be provided.

The internal circuit connected to the switches and the like includes:
As shown in FIG. 3, a power supply unit 21 (indicated by a dashed line in the figure) including various transformers for converting a commercial power supply (100 V or the like) to a required voltage and a DC voltage is controlled as power supply stop control means. It has a substrate 22 and a sub substrate 23. The power supply unit 21 is connected to the positive connection unit 1 via various control components (power elements, choke coils) 22 a and 23 a of the control board 22 and the sub-board 23.
1a to output power.

The control board 22 is connected to the voltage adjusting dial 11c. By adjusting the dial, the voltage is adjusted within a range of about 2 to 10 V, so that the output current value can be varied. Control board 2
2 itself is a CT coil 22a, which constantly detects the output current value during energization, and stops the output when the current rises above a certain current value. Also, a gap detection circuit 22b is provided to detect a short circuit. For example, during the cleaning operation, even if the cleaning electrode 13 is in direct contact with the object to be cleaned and short-circuited, the power supply is immediately stopped, and no spark due to the short-circuit occurs and the surface of the object to be cleaned is not generated. Will not hurt. Therefore, even in various dies and the like manufactured with high accuracy, the cleaning operation can be easily performed with ease. The control board 22 displays various types of work information on the display unit 11d, and can display, for example, the energizing work time, the output voltage, the output current value, the output stop state, and the like.

The power supply 11 also includes a cleaning liquid supply pump 24 therein. When the cleaning liquid supply switch 11f is turned on, the pump 24 discharges the cleaning liquid in the cleaning liquid tank 23 from the cleaning liquid supply connection portion 11g. I have. The sent washing liquid is sent to the holder 12 via the feed tube 28, circulates through the holder 12 and returns to the washing liquid tank 23 via the return tube 29,
The holder 12 and the cleaning liquid tank 23 are circulated.
This circulation cools the cleaning liquid. Note that the switch 11f may be attached to the holder 12 side.

The above-described power supply 11 is an example of the embodiment, and various additions and changes can be made in accordance with the use condition and the like. For example, the power supply 11 may be provided with a mechanism for outputting a description of use of the cleaning device by voice guidance. Alternatively, a cleaning liquid supply part such as a cleaning liquid tank, a pump, and a cleaning liquid feed / return unit may be provided separately from a power supply part for electrolytic cleaning. Further, the pump for supplying the cleaning liquid may be of a type that generates and supplies compressed air manually instead of the electric pump.

On the other hand, the conducting electrode 14 that is conductively connected to the object to be cleaned is attached to the object to be cleaned at the sandwiching portion 14a so as to be easily connected to the object to be cleaned. In addition, according to the form of the object to be cleaned, the conductive electrode 1 may be bolted using the hole 14b of the sandwiching portion 14a or the like.
The shape of 4 itself may be formed into various shapes such as a plate shape so that conductive connection can be easily made.

The connection between the holder 12 having the cleaning electrode 13 and the conduction electrode 14 to the power supply 11 is usually performed by connecting the holder 12 to the positive electrode side connection portion 11a of the power supply 11 as shown in FIG. The common electrode 14 is connected to the negative electrode side connection portion 11b via connection cords 26 and 27. In the case where the surface of the object to be cleaned is cleaned by performing a specific application, for example, reverse electrolysis, the holder 12 is connected to the negative connection portion 11b, and the conduction electrode 14 is connected to the positive connection portion 11a. It may be connected to perform electrolytic cleaning.

The object to be cleaned by the cleaning apparatus 10 is as follows.
Metal molds for resin, glass, rubber, etc.
Various tools, various cutting tools, various jigs, machine parts, etc., such as resin scum, resin scorch, rust, rubber and other deposits on these dies, etc., passive films formed on metal surfaces, various types of oil etc. Dirt is removed. In addition, as shown in FIG. 1, if the object to be cleaned H is a small object or the like, if the work is placed on the work tray T or the like and the work is performed, even if the cleaning liquid flows, the influence on the surroundings can be prevented.

To perform electrolytic cleaning using the cleaning apparatus 10, first, the cleaning liquid S is poured into the cleaning liquid tank 23. In order for the cleaning liquid S to be used to generate a large amount of hydrogen gas by electrolysis and increase the cleaning performance, it is necessary to flow a large amount of current, and for that purpose, it is preferable to lower the liquid resistance, and therefore, the cleaning liquid is strong. As an alkali, one of sodium hydroxide, potassium hydroxide, sodium carbonate, and potassium carbonate, or one or more of these as a main component, and one of sodium diethyl pentaacetate, sodium EDTA, and sodium citrate Alternatively, two or more of these are composed of a chelating agent and sodium gluconate as an auxiliary. These component ratios and the like can be appropriately changed in consideration of the material and the like of the object to be cleaned.

Next, first, the conductive electrode 14 is conductively connected to the cleaning object H made of metal, and then the cleaning liquid supply switch 11f of the power supply 11 is turned on.
Is sent, and the washing liquid permeates the cotton 18. When the start button 11i is turned on in this state, the cleaning electrode 13 is energized. When the energized cleaning electrode 13 is brought into contact with the cleaning location of the object H through the cotton 18 and the gauze 19, the object H is cleaned. And the cleaning liquid S is electrolyzed. The cleaning liquid S generates hydrogen gas in the form of bubbles due to electrolysis by electrolysis, and the bubbles cause dirt, rust, and the like to rise from the object H to be cleaned. Further, when the cleaning electrode 13 is brought into contact with the object to be cleaned H and moved forward, backward, left and right, etc., the above-mentioned electrolytic action is promoted, bubbles are easily generated, and the floated dirt is absorbed by the cotton 18 and the gauze 19. To remove dirt.
If the dirt or the like is severe, the dirt may be lifted by the cleaning electrode 13 as described above, and then the dirt may be wiped off with another excellent absorbent cloth. Further, the cleaning may be performed while the cleaning liquid is supplied by dropping the cleaning liquid directly from the outside onto a cleaning portion or the like.

During operation, heat is generated in the holder 12 and the cleaning electrode 13 due to energization, but since the cleaning liquid S is circulated inside the holder 12, the holder 12 is cooled by the cleaning liquid S. Since the cleaning liquid S also flows inside the cleaning electrode 13, an increase in temperature due to heat is prevented. Even if the cleaning liquid S permeated into the cotton 18 is electrolyzed, the cleaning operation can be continuously performed because it is appropriately supplied from the cleaning liquid tank 23. During the operation, the current value output from the positive electrode can be appropriately adjusted with the voltage adjustment dial 11c.

Further, as shown in FIG. 4, when cleaning the edge portion or the like of the object H to be cleaned, the edge portion Ha
Also, even if it breaks through the gauze 19 and comes into direct contact with the cleaning electrode 13 to cause a short circuit, the power supply is immediately stopped by the control board 22 inside the power supply 11, so that the cleaning target H is damaged, burn marks, etc. To prevent the occurrence of inconveniences.

FIG. 5A shows a cleaning apparatus 10 'of a modified example. In order to enhance portability and usability, the power supply 11' is housed in a portable case 30 'and the case 30'. Different storage locations 30a ', 30b'
, Washing liquid, absorbent material such as cotton and gauze, holder 1
2 ′, a cleaning electrode 13 ′, a conduction electrode 14 ′, various connection hoses, etc.
0 'is movable. FIG. 5B shows another modified example of the cleaning device 10 ″, in which a shoulder strap 31 ″ is attached to the power supply 11 ″ so that it can be shouldered. Even if the mold is still attached to the molding machine, the operator can carry out the same electrolytic cleaning operation by hanging the power supply 11 '' on his shoulder. In addition, since the cleaning device 10 ″ can be moved together with the operator, the cleaning operation can be efficiently performed even when the object to be cleaned is attached to the back of the device or when the object to be cleaned is large.

FIG. 6 shows a holder 40 in the cleaning apparatus according to the second embodiment of the present invention. The holder 40 is
A conduction member 45 is provided inside, and the conduction member 45 is provided with an air flow passage 45a and a linear cleaning liquid supply passage 45b. In addition, an opening end 45b of the air flow passage 45a is provided on the distal end surface 40b of the holder 40, and the same cleaning electrode 13 as in the first embodiment is attached. On the other hand, a rear end portion 45c on the connection side with the power supply has a power supply connection portion 46 for electrolytic cleaning, a cleaning liquid supply connection portion 47 having a throttle valve 47a, and an air supply connection portion 48. It is connected to a compressor having a pressure reducing valve as a means via an air hose 50. Note that the air supply means such as a compressor can be either separate from or integrated with the power feeder, and is separate in the present embodiment.

Except for the holder 40 described above, the contents are the same as those of the first embodiment, and the connected power supply, conducting electrodes and the like are the same as those of the first embodiment. However, since the holder 40 does not circulate the cleaning liquid, the cleaning liquid supply connection part 47 is connected to only the cleaning liquid feed connection part of the power feeder via the feed tube 29.

The electrolytic cleaning in the cleaning apparatus of the second embodiment is substantially the same as that of the first embodiment. The conductive electrode is connected to the object to be cleaned, and the cleaning liquid supply switch and the start button of the power supply are connected. Turn on and wash. At the time of washing, compressed air is simultaneously discharged from the compressor to supply air to the holder 40. Since the supplied air flows through the air flow passage 45a of the conductive member 45 inside the holder 40 and escapes from the opening end 45b, the heat generated by the holder 40 and the cleaning electrode due to electrolysis can be cooled by the air, and the cleaning operation can be continuously performed. . When the calorific value is large, the supply path of the cleaning liquid may be circulated inside the holder or the like as in the first embodiment, and the holder or the like may be cooled by the flow of both the air and the cleaning liquid.

FIG. 7 shows a holder 70 of the cleaning apparatus according to the third embodiment. The holder 70 is provided with a motor 73 as a vibration generating means inside, and drives the motor 73 to vibrate the cleaning electrode 75 attached to the tip 70 a of the holder 70. The power of the motor 73 is supplied from a power supply, and the frequency can be adjusted from the range of about 10 to 100 Hz to the frequency range of ultrasonic vibration depending on the supplied current value. The holder 7
The configuration other than the above-mentioned 0 and the configuration of the power supply, the conducting electrode, and the like are the same as those of the first and second embodiments.

As described above, when the cleaning electrode 75 is vibrated, the cotton and the like follow and vibrate, and when the cleaning electrode 75 is brought into contact with the object to be cleaned, the cleaning is performed without moving the holder 70 in particular. Since the cleaning liquid is agitated and the current flows well because the electrode 75 itself vibrates, bubbles due to hydrogen gas are easily generated, and the cleaning power is improved.

FIG. 8A shows a holder 80, a cleaning electrode 82 and the like in the cleaning apparatus of the fourth embodiment. The holder 80 and the like have a simple structure without providing a cleaning liquid supply path or an air flow path.
A rod-shaped cleaning electrode 82 is detachably attached to a. Cotton 18 covered with gauze 19 is attached to tip 82 a of cleaning electrode 82 with cylindrical cover 81.
The rear end of the holder 80 is connected to a power supply at a connection portion 80b for supplying power for electrolytic cleaning.

The power supply unit has a simpler structure by omitting the cleaning liquid supply portion provided in the first embodiment and the like, and has the same conduction electrodes as those in the first embodiment and the like. In the cleaning operation, as shown in FIG. 8 (B), after connecting the holder 80 and the conduction electrode to the power supply in the same manner as in the first embodiment, the tip of the holder 80 is placed in the cup K containing the cleaning liquid S. The cleaning liquid S is soaked in the cotton 18 and the like, and thereafter, the cleaning operation is performed in the same manner as in the first embodiment. During the operation, the holder 80 is immersed in the cup K and the washing is performed while the washing liquid S is supplied.

The replenishment of the cleaning liquid S may be carried out by dropping an appropriate amount of the cleaning liquid on the cleaning location of the object to be cleaned, or by performing the work by using the dripping and immersion in the cup in combination. Good. When the cleaning liquid is dropped as described above, the cleaning liquid may be excessive, and if the object to be cleaned is a vertical surface or the like, the cleaning liquid may drop downward. But,
In the above case, as shown in FIG.
The vacuum pipe 90 is attached to the cleaning pipe so that the dripping cleaning liquid S is sucked by the vacuum pipe 90. The vacuum tube 90 is connected to a suction unit such as a vacuum pump integrated with or separate from the power supply, and the suctioned cleaning liquid S is sent to a cleaning liquid tank or a waste liquid tank depending on the degree of contamination. The vacuum tube 90 is provided separately from the holder 80 in accordance with various cleaning modes and the like so that the vacuum tube 90 can be used alone.

FIG. 10A is a modification of the fourth embodiment, in which the cotton 18 covered with the gauze 19 is wound around the periphery of the rod-shaped cleaning electrode 82, and the end on the holder 80 side is short. , And a cap 84 is attached to the end of the electrode on the tip side, so that the cotton 18 and the like are securely attached to the cleaning electrode 82. Cotton 18 like this
When the object to be cleaned is attached, the cleaning can be suitably performed when the object to be cleaned has a cylindrical shape and the cleaning portion is on the inner surface side or the like. In addition to the above, the cotton 18 and the gauze 19 may be attached so as to cover from the tip to the root of the cleaning electrode 82. Further, a thread may be wound around the outer periphery of the gauze for reinforcement.

FIG. 10B shows another modification of the fourth embodiment, in which a flat cleaning electrode 82 ′ is attached to a holder 80.
And cotton 18 and gauze 19 at the electrode end.
And attached to the electrode with a cover 81 '. The use of such a plate-shaped electrode is suitable for a case where a cleaning target of an object to be cleaned is a flat surface or the like. In addition, you may make it attach a cleaning electrode of various shapes, such as a spherical shape, a conical shape, a round shape, and a semi-circle shape, to a holder other than the said shape.
The cleaning electrodes of these various shapes can be applied to the holders of the first to third embodiments.

FIG. 11 shows a fifth embodiment of the present invention.
This shows a cleaning state when the object to be cleaned H ″ is large. The power supply 100 has two cleaning electrodes 90-1 and 2.
Are connected to the required pole side, and the two conducting electrodes 91-1 and 92-1 are connected to the unconnected side poles of the cleaning electrodes 90-1 and 90-2. Cleaning electrodes 90-1, 2
The holders 92-1 and 92-1 can be applied to any of the first to fourth embodiments, and the most suitable one is connected to the power supply 100 according to the shape of the object to be cleaned. ing. In the case of cleaning a large flat surface or the like of a large cleaning object H, a flat cleaning electrode shown in FIG. 10B may be used, or a so-called stamp-type cleaning electrode may be used. You may.

As described above, the two cleaning electrodes 90-
By using the electrodes 1 and 2, a wide area can be efficiently cleaned, and by using two corresponding electrodes 91-1 and 2 for conduction, the distance between the electrodes is made as small as possible. The voltage drop is prevented and the continuity is reliably maintained, so that the dirt is removed by an excellent electrolytic action.
The power feeder 100 may connect two or more cleaning electrodes and conduction electrodes, and may use more cleaning electrodes and conduction electrodes to improve the cleaning efficiency. When a plurality of cleaning electrodes and conduction electrodes can be connected as described above, a plurality of objects to be cleaned can be electrolytically cleaned by one cleaning apparatus at the same time.

[0053]

As is apparent from the above description, the use of the simple cleaning apparatus of the present invention eliminates the need for an electrolytic cell, which has been conventionally required, and makes it possible to reduce the cost of the apparatus itself. At the same time, the amount of the cleaning liquid used is reduced, and the running cost can be reduced. In addition, the size and shape of the object to be cleaned can be eliminated, and all types of metal objects can be cleaned. Further, in preparation for the pre-stage of cleaning, it is not necessary to remove the object to be cleaned from the assembled state or to disassemble only the cleaning portion, so that the labor and time required for preparation can be reduced.

Further, for cleaning, the gauze or the like impregnated with the cleaning liquid is brought into direct contact with the cleaning portion of the object to be cleaned for electrolytic cleaning. In addition, it is possible to further enhance the electrolytic cleaning power by vibrating the holder or vibrating the cleaning electrode by the vibration generating means built in the holder. Furthermore, during the cleaning operation, even if the cleaning electrode and the object to be cleaned are in direct contact with each other and a short circuit occurs, the power supply is immediately stopped, so that safety for the worker can be ensured and Various problems such as short-circuit burn can be prevented from occurring on the object, and the cleaning operation can be easily performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cleaning device according to a first embodiment of the present invention.

FIG. 2 shows a holder and the like in a cleaning device, and (A)
Is a partially exploded perspective view, and (B) is a sectional view.

FIG. 3 is an internal circuit diagram of the feeder.

FIG. 4 is a schematic view showing an example of electrolytic cleaning.

FIG. 5A is a perspective view of a simplified cleaning device according to a modification of the first embodiment, and FIG. 5B is a schematic diagram of a cleaning operation according to another modification.

FIG. 6 is a sectional view of a holder and the like in a second embodiment.

FIG. 7 is a front view of a holder and the like in a third embodiment.

FIG. 8 shows a holder and the like in a fourth embodiment;
(A) is a partially exploded perspective view, and (B) is a schematic view of a state where a cleaning solution is replenished.

FIG. 9 is a schematic diagram illustrating an example of a cleaning operation according to a fourth embodiment.

FIG. 10A is a schematic diagram of a modification of the fourth embodiment, and FIG. 10B is a schematic diagram of another modification.

FIG. 11 is a schematic view showing a cleaning state in a fifth embodiment.

FIG. 12 is a schematic view of a conventional electrolytic cleaning apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electrolytic cleaning apparatus 11 Power supply 12 Holder 13 Cleaning electrode 14 Conducting electrode 18 Cotton 19 Gauze

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B201 AA46 AB01 BB02 BB82 BB92 BC01 CD42 CD43 4F202 AM13 CA30 CB01 CS02

Claims (9)

[Claims] 1. A power supply for supplying a current for electrolytic cleaning, and at least one cleaning electrode connected to one of a positive electrode and a negative electrode of the power supply and to which an absorbent for permeating a cleaning liquid is attached. And one end connected to one of the positive electrode and the negative electrode of the power supply, and the other end provided with at least one conduction electrode electrically connected to the metal object to be cleaned. When the cleaning object is wiped off by infiltrating the cleaning liquid, the cleaning electrode and the conduction electrode are energized to electrolytically clean the cleaning object. 2. The power supply device according to claim 1, wherein the power supply device includes a power supply stop control means for controlling a current value flowing from the positive electrode and stopping power supply when the cleaning electrode itself comes into contact with an object to be cleaned. The cleaning device according to item 1. 3. The cleaning apparatus according to claim 1, wherein the cleaning electrode is detachably mounted on a holder, and is connected to a power feeder via the holder. 4. The cleaning electrode according to claim 1, wherein the cleaning electrode has a flat plate shape, a rod shape, a spherical shape, or a conical shape.
The cleaning device according to any one of the above. 5. The cleaning liquid supply means which is connected to the holder or the cleaning electrode and communicates with an absorbent material, wherein the holder is connected to a cleaning liquid supply means integrated with or separate from the power supply. 5. The cleaning device according to claim 3, wherein the cleaning liquid permeates the absorbent material from the supply means via the cleaning liquid supply path to enable continuous cleaning, and the holder or the cleaning electrode itself is cooled by the supplied cleaning liquid. The cleaning device according to the above. 6. The holder is connected to an air supply means integrated with or separate from the power supply, and forms an air flow passage in the holder or the cleaning electrode so that air supplied from the air supply means is provided. The cleaning device according to any one of claims 3 to 5, wherein the cleaning device is configured to be cooled. 7. The cleaning device according to claim 3, wherein the holder has vibration generating means for vibrating the cleaning electrode, and vibrates the cleaning electrode when wiping an object to be cleaned. The cleaning device according to claim 1. 8. The cleaning device according to claim 1, wherein the absorbent material is a fiber material, and is attached to a tip of the cleaning electrode or to cover the tip from the tip to the root. Cleaning equipment. 9. The washing solution is selected from the group consisting of sodium hydroxide, potassium hydroxide, sodium carbonate, and potassium carbonate, or two or more of these as main components, sodium diethyl pentaacetate, sodium EDTA, sodium citrate. The cleaning device according to any one of claims 1 to 8, wherein any one of the above, or two or more of these, is composed of a chelating agent and sodium gluconate as an auxiliary.