JP5101873B2 - Cleaning medium - Google Patents

Description

  The present invention relates to a cleaning medium used for removing deposits from an object to be cleaned by scraping or peeling off, and a dry cleaning apparatus using the same, and more particularly to an electrophotographic image such as a copying machine or a laser printer. Used to remove dust and powder adhering to various objects to be cleaned, such as parts with relatively complicated shapes, to which toner used in forming devices is attached, using a solid cleaning medium without using water or solvent The present invention relates to a cleaning medium and a dry cleaning apparatus.

Office equipment manufacturers such as copiers, facsimiles, and printers disassemble, clean, and reassemble used products and various units from users to realize a resource recycling society, and reuse them as parts. Recycling activities are actively carried out.
In order to reuse the parts used in these products and various units, it is necessary to remove and clean the toner, which is fine particle powder adhering to the disassembled parts and units. Reducing the cost and environmental burden required for commercialization is a major issue.

  Conventionally, apparatuses for removing adhering substances and cleaning them include, for example, wet cleaning in which dirt such as toner is washed away with water or detergent. In this cleaning method, waste liquid treatment after cleaning or drying after cleaning is performed. In the consumption of energy necessary for the environment, the cost may increase due to environmental and energy saving measures.

  On the other hand, in the case of dry cleaning methods using air blow, cleaning capability is not sufficient for toners with strong adhesion, and post-processing such as manual wiping is necessary, so cleaning is a bottleneck process in product reuse and recycling. It is one of.

  Therefore, a dry cleaning apparatus that does not use detergent or the like instead of wet cleaning has been proposed by the present applicant (for example, Patent Document 1).

  The dry cleaning apparatus disclosed in Patent Document 1 weakens the adhesion of dust adhering to an object to be cleaned by removing electricity while stirring the charged object to be cleaned in a rotating cylinder together with an elastically deformable contact member. To be removed.

  Separately, steel, aluminum, stainless steel spheres or small pieces of finely cut wire rods are sprayed onto the workpiece to separate the deposits from the object to be cleaned, or granular solids are mixed into the high-speed air stream. A shot blasting method is also used in which the resin container is made to collide with the surface of the resin container to remove dirt from the resin container (for example, Patent Documents 2 and 3).

  Furthermore, a particulate cleaning medium that adsorbs fine particles is introduced into the container to be cleaned, the cleaning nozzle is inserted into the opening of the container to be cleaned, a high-speed air stream is blown into the cleaning container, and the exhaust is discharged from the cleaning nozzle. The cleaning medium is blown up, the particulate cleaning medium blown up removes the fine particles adhering to the inner surface of the cleaning container, and the cleaning medium collides with the mesh at the tip of the cleaning nozzle to separate the fine particles adsorbed on the cleaning medium. In another proposed method, the cleaning medium is regenerated by filtering and the regenerated cleaning medium is blown again with an air flow and repeatedly washed (for example, Patent Document 4).

  In addition to the device disclosed in Patent Document 4, a configuration is also proposed in which the cleaning medium fly and the cleaning medium are simultaneously regenerated by suction (for example, Patent Document 5).

  Furthermore, a blast cleaning method that uses a flexible cleaning medium to make it difficult to damage the object to be cleaned or to prevent deformation of the object to be cleaned has been proposed (for example, Patent Documents 6 to 10).

JP 2003-122123 A JP-A-2005-193958 Patent 2889547 Japanese Patent No. 3468995 JP-A-2005-329292 JP 2004-106100 A JP-A-60-188123 JP 04-059087 No. 2515833 JP 07-088446

  However, in the configuration disclosed in Patent Document 1, the contact force between the contact member and the object to be cleaned by stirring is not sufficient, and there is a problem that it is difficult to remove dust with strong adhesion.

  In the configuration disclosed in Patent Document 2, it is necessary to increase the cleanliness of the cleaning medium in order to improve the cleaning quality, but the separation performance is insufficient in the centrifugal separation action (cyclone method) by the swirling airflow. Further, in order to further improve the cleaning quality, it is necessary to replace the cleaning medium on which the toner is adsorbed many times, and there is a problem that the cleaning efficiency is poor and a large amount of cleaning medium is required.

  In the configurations disclosed in Patent Documents 3 and 4, since small pieces or granular solids obtained by finely cutting metal spheres or wire rods are used as the cleaning medium, not only the dirt on the object to be cleaned is removed, but also cleaning is performed. It was not applicable when the surface of the object was scraped and roughened into a satin-like shape, and scratches on the object due to washing were not allowed.

  In addition, the dry cleaning apparatus disclosed in Patent Document 5 performs regeneration by flying the cleaning medium and sucking the cleaning medium at the same time, and is an effective means for a small volume such as cleaning in a container. However, since the flying energy of the cleaning medium is dispersed, the stagnation of the cleaning medium does not fly and stays in the cleaning tank with a large volume where the object to be cleaned is introduced and moved. It is difficult to fly and regenerate, and the cleaning ability may be reduced.

  In the configurations disclosed in Patent Documents 6 to 10, there is a problem in that the time required for cleaning is long and sufficient cleaning cannot be performed on adhered particles having strong adhesion.

The present invention provides a cleaning medium and a cleaning apparatus capable of improving cleaning quality and cleaning efficiency by increasing the movement speed and cleanliness of a dry cleaning medium in view of the problems in the conventional cleaning configuration. It is an object.
In particular, it is an object of the present invention to provide a cleaning medium and a discriminating cleaning device that can be dry-cleaned without damaging or generating a cleaning residue even if the component has a complicated shape.

  It is another object of the present invention to facilitate the removal of the cleaning medium adhering to the object to be cleaned after the cleaning and to shorten the work time related to the cleaning.

In order to achieve this object, the present invention has the following configuration.
(1) Housed in a cleaning tank,
A cleaning medium that is used to remove a deposit that has collided with the object to be cleaned by flying with an air current and has adhered to the object to be cleaned,
The cleaning medium has a bent portion formed by bending from a base portion formed of a flat surface , forms a gap when contacting the wall surface of the cleaning tank, and the airflow enters the gap. Medium.

(2) The cleaning medium according to (1), wherein the cleaning medium is provided with a plurality of the bent portions.

(3) The cleaning medium according to (1) or (2), wherein the bent portion is provided in different directions with respect to the base portion.

  According to the present invention, since the cleaning medium collides inelastically, the contact area in a single collision is high, and when the contact force increases, the cleaning medium bends and releases the force, thereby cleaning the parts having a complicated shape and the object to be cleaned. At the same time, it is possible to increase the cleaning quality without increasing the cleaning quality. This makes it easy to remove the cleaning medium adhering to the object to be cleaned after cleaning.

  The best mode for carrying out the present invention will be described below with reference to embodiments shown in the drawings. First, the advantage of using the cleaning medium M made of a flexible thin piece in FIG. 1 will be described. In the dry cleaning apparatus in which the cleaning medium according to the present invention is used, the cleaning medium moves according to the airflow.

  Accordingly, the cleaning medium behaves as a fluid, unlike the cleaning means fixedly supported such as a brush, a wire, and a scraper, so that it is possible to invade every corner of the object to be cleaned.

As shown in FIG. 1, the cleaning medium M is a thin piece that is flexible and flies by an air current, and is attached to the cleaning object W, such as the shape and material characteristics of the cleaning object W. The material, weight, size, shape, etc. are determined in accordance with the characteristics such as the particle size and adhesion strength of the deposit.
The air blowing means for generating an air flow for the cleaning medium M to fly is disposed at a position away from the fixed position of the cleaning object W by a predetermined distance. As this blowing means, a blowing means, a compressed air source, an air tube, an air blow nozzle, a spraying device, or the like can be used. Any method may be used as a method of generating an air flow by the blowing means as long as the cleaning medium M can fly, and the cleaning medium M may be discharged in a mixed state with the gas, or the gas blowing port may be cleaned in advance. The medium M may be arranged.

  With the above-described configuration, when the airflow A is generated by the operation of the air blowing means, a large number of cleaning media M existing on the flow path of the airflow fly on the airflow, and many of the many cleaning media M that have flew fly are cleaned. The cleaning object W is cleaned by contacting or colliding with the object W and scraping off the deposits from the cleaning object W. With this configuration, the cleaning medium M behaves as a fluid, unlike cleaning means that are fixedly supported such as brushes, wires, scrapers, etc., so that the cleaning effect can be obtained when the cleaning medium M penetrates every corner of the cleaning object W. Can be improved.

  In this configuration, by using an air blow nozzle connected to a compressed air source as a blowing means, a high-speed air stream can be generated as an air stream, and the cleaning ability of the cleaning object W can be enhanced. Moreover, since the frequency with which the cleaning medium M contacts the cleaning target W increases by increasing the speed of the airflow, the cleaning time of the cleaning target W can be shortened and the cleaning efficiency can be improved.

  In the above configuration, since the cleaning medium M has flexibility, that is, it can bend when it contacts or collides with the cleaning target W, the impact applied to the cleaning target W can be reduced and cleaning can be performed. Efficiency can be increased. Since the cleaning medium M is flexible, if the contact force with respect to the object to be cleaned W increases, the cleaning medium M bends to release the force, so that it is necessary like a general blast shot material or barrel polishing media material. It is possible to prevent the occurrence of problems such as collision with the cleaning object W with the above force and damage to the cleaning object W. Further, the cleaning medium M bends at the time of contact or collision with the cleaning object W, resulting in an inelastic collision, and the cleaning medium M hardly rebounds at the time of the collision, so that the cleaning medium M has a large area of the cleaning object W. The cleaning medium M can be contacted, and the cleaning efficiency can be improved by removing a large amount of the deposits d (see FIG. 1) from the cleaning target W.

  Furthermore, in the above configuration, by using a thin piece as the cleaning medium M, it is possible to dramatically improve the cleaning performance as compared with the case where a cleaning medium having another shape is used. The reason for this is that the followability to airflow (high-speed flight and complex movement) and the behavior at the time of contact or collision (edge action, sliding contact, deflection action) were superior to other types of cleaning media. Conceivable. First, the followability to the airflow will be described.

The flaky cleaning medium M has a very small mass against air resistance when the force of the airflow acts in the direction where the projected area is large, so it is easily accelerated by the airflow and fly at high speed, and the airflow in the direction where the projected area is small. When this force is applied, high speed motion is maintained for a long distance because air resistance is small.
The higher the speed of the cleaning medium M, the larger the retained energy, and the greater the force acting when contacting the cleaning object W, the cleaning quality can be improved and the frequency of contact with the cleaning object W can be increased. By increasing, the cleaning efficiency can be improved. In addition, since the air resistance of the lamellar cleaning medium M varies greatly depending on the posture, it can move not only along the airflow but also can move in a complicated manner such as suddenly changing its direction. Turbulence is generated around the object to be cleaned W due to the action of the high-speed airflow, but the flaky cleaning medium M, which is more susceptible to air resistance than the mass, has high followability to the turbulence, and is caused by the vortex of the turbulence. Since it is possible to repeatedly contact the cleaning target W while rotating while rotating, high cleaning capability and cleaning efficiency can be obtained even when cleaning the cleaning target W having a relatively complicated shape.

Next, the behavior at the time of contact or collision will be described. FIG. 1 is a schematic diagram for explaining how deposits are removed by sliding contact. In the figure, symbol d indicates the deposits.
When the lamellar cleaning medium M collides with the cleaning object W from the end thereof, the collision force is concentrated on the edge, so that the force necessary for removing the deposit d is obtained even though the mass is small. be able to.
Further, in the case of the lamellar cleaning medium M, since the bending force is released when the collision force becomes large, the viscous resistance received from the air acts so as to cause an inelastic collision, so that the contact time with the cleaning object W is long. Thus, the cleaning ability can be improved. Further, the flake-like cleaning medium M is less likely to bounce at the time of collision, and in the case of an oblique collision, the cleaning medium M is in sliding contact with the object to be cleaned W as shown in FIG. The cleaning efficiency can be increased by removing a large amount of deposits d from the cleaning object W in contact with the cleaning object W.

  On the other hand, a general shot material or elastic sponge is likely to rebound at the time of collision, and the contact efficiency at the time of collision with the object to be cleaned W is lower than that of the lamellar cleaning medium M. Further, in the lamellar cleaning medium M, a force parallel to the contact surface is easily applied to the deposit d by the scraping action and the sliding action by the sliding contact at the time of contact or collision. In general, it is known that the adhering material d can be separated with a smaller force when a force is applied to the adhering material d in a direction parallel to the adhering surface than when a force is applied in a direction perpendicular to the adhering surface.

  On the other hand, conventionally known granular sponges and granular foams are flexible and can be deformed and can contact a wide area of the object to be cleaned W at the time of collision. Since the rolling is likely to occur, the scraping action and the rubbing action by sliding contact cannot be obtained, and the shearing force for separating the deposit d from the object to be cleaned W cannot be obtained. The cleaning capability for the kimono d is inferior to that of the flaky cleaning medium M.

  The above is considered to be the reason why the laminar cleaning medium M has a higher cleaning capability and higher cleaning efficiency than a cleaning object W having a relatively complicated shape as compared with other cleaning media. This is an epoch-making feature not found in materials, barrel polishing media, granular sponges or granular foams. As the shape of the flexible lamellar cleaning medium M, the area is 1-1000 mm2, the thickness is about 1-500 μm, and the material is, for example, a resin film piece, a thermoplastic elastomer film piece, a rubber piece, a cloth piece, a paper piece, Metal flakes and the like are suitable, but not limited thereto, as described above, characteristics such as the shape and material of the object to be cleaned W, and characteristics such as the particle size and adhesion strength of the object adhering to the object to be cleaned. It is determined appropriately according to

  As described above, in the present invention, the cleaning medium M that is flexible and has a flake shape that flies by an air current causes the cleaning target W to be damaged by bending the cleaning medium M. In addition, the cleaning efficiency can be increased by the inelastic collision, and the cleaning medium M is in the shape of a flake, so that high-speed flight and complex movement are possible, and the cleaning target W having a relatively complicated shape is cleaned. In particular, it is possible to obtain high cleaning ability and cleaning efficiency, and it is possible to remove the adhering substance d having a strong adhesive force by a scraping action and a rubbing action by sliding contact.

  As the cleaning medium M used in the present invention, various materials can be used as long as they have flexibility. However, in order to increase cleaning efficiency by inelastic collision caused by bending, ASTM is used. It is desirable that the Young's modulus according to D882 is 4 GPa or less. Moreover, in order to endure the resistance at the time of scraping by sliding contact, it is desirable that Young's modulus is 0.2 GPa or more.

For example, when a general resin film is used, since it has flexibility and durability, it can be used repeatedly for a long time without damaging the object W to be cleaned. Can be achieved. In addition, when a plurality of types of deposits d are attached to the cleaning object W, the role of cleaning can be shared by using a plurality of materials. For example, a resin film is not good at adsorbing and removing fat and oil stains, but it is easy to regenerate by a dry method because there are few adsorbates. Contrary to this, cloth is good at adsorbing and removing oil stains, but it is dry and difficult to recycle, so it cannot withstand repeated use. In particular, when the cleaning medium M is used repeatedly, its mechanical strength is required, so paper and cloth are disadvantageous, and resin and metal are advantageous.
In addition, the metal foil has a problem that it undergoes plastic deformation when subjected to repeated stress. Therefore, the metal foil is an aggregate in which micro polymers such as a resin film, a thermoplastic elastomer film, and rubber are entangled or bonded. It will be advantageous. In particular, the resin film is more advantageous in terms of cleaning efficiency because it is more likely to inelastically collide with the object to be cleaned W than thermoplastic elastomer or rubber. As described above, since the cleaning capability for the cleaning target W is different depending on each material, the total cleaning capability can be enhanced by using the cleaning medium M in which various materials are mixed.
(Problem of flexible flaky cleaning medium)
Here, as a problem that occurs when a flexible cleaning medium is used during cleaning, there is a problem that the cleaning medium is charged by friction with the wall surface of the cleaning tank, the object to be cleaned, and another cleaning medium.
In particular, the frequency of friction increases and the charge amount increases in a short time as the cleaning medium is made to fly at a high speed in order to shorten the cleaning time.

  Thereby, a washing | cleaning medium, a washing tank wall, or a washing | cleaning target object will adhere with an electrostatic force. In particular, in the case of a flaky cleaning medium having flexibility, since the shape of the cleaning medium can follow the shape of the other side, the surface of the cleaning medium and the surface of the cleaning tank or the surface of the object to be cleaned are, as shown in FIG. It will stick. Once there is a close contact, there is no gap between the cleaning medium and the wall of the cleaning tank or the work wall so that air flow can enter. Since ions cannot enter between the two, it becomes difficult to remove static electricity.

As a result, the cleaning medium and the cleaning tank wall or the cleaning object remain attached.
As a result, in the cleaning process, the amount of the cleaning medium that contributes to cleaning decreases, cleaning efficiency decreases, and cleaning time increases. Further, in the cleaning medium removing process from the cleaning target after the cleaning, the cleaning medium removing operation takes a long time.

  In addition to the above, in the case of the lamellar cleaning medium M, it can be cleaned by entering a narrow gap, but the seam of the object to be cleaned as shown in FIG. If there is a gap in the joint portion, there is a case where it is sandwiched there, and in particular, when a plurality of cleaning media are sandwiched at the same time, the cleaning media are further sandwiched between the cleaning media themselves as a result. A scale-like accumulation state is formed as in (b). Thereby, in the cleaning process, the amount of the cleaning medium M that contributes to the cleaning is reduced, or the accumulated cleaning medium M shields the incidence of the new cleaning medium M on the object to be cleaned, and the cleaning efficiency is improved. It takes a long time for cleaning.

  In addition, there is a problem in that the cleaning medium removing operation takes a long time in the cleaning medium removing process from the object to be cleaned after the cleaning.

  Therefore, in the present invention, a clearance is formed between the cleaning medium M and the wall surface of the cleaning tank or the wall surface of the work, and the cleaning medium is prevented from entering the joints and joints beyond a certain depth. This solves the above problem.

That is, the cleaning medium M is formed into a three-dimensional shape by deforming a flexible flaky cleaning medium to provide a bent portion at a part of a base portion formed of a flat portion.

  In the cleaning process, even if the cleaning medium M and the cleaning tank wall having such a shape are attached, a gap is formed between the cleaning medium and the cleaning tank wall so that an airflow can enter.

In this case, an air flow toward the gap is generated, and if the air flow that enters the gap separates the cleaning medium and the wall surface of the cleaning tank and overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated and the cleaning medium can re-fly. It becomes.
As a result, it is possible to maintain the cleaning efficiency without reducing the amount of the cleaning medium that contributes to the cleaning.

  Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the wall surface of the cleaning tank and the charge can be eliminated, so that the effect can be enhanced. In the cleaning medium removal step from the cleaning target after cleaning, a gap is formed between the cleaning medium and the surface of the cleaning object so that airflow can enter even if the cleaning medium and the cleaning target are attached.

  In this case, when the airflow toward the gap is generated and the force that separates the airflow between the cleaning medium and the surface of the object to be cleaned overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated, and the cleaning medium can be easily removed. It becomes possible.

  Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the surface of the object to be cleaned, so that the effect can be enhanced.

  Furthermore, even if there is a gap with the same width as the thickness of the lamellar cleaning medium at the seam of the object to be cleaned, the seam in the joint or in the washing tank, or the joint, the pinching is stopped and exposed from the gap. The cleaning medium re-flys when the airflow hits the part, and accumulation does not proceed.

  As a result, the amount of the cleaning medium that contributes to cleaning is not reduced in the cleaning process, and the cleaning medium accumulated in the gap between the cleaning objects shields the new cleaning medium from entering the cleaning object. There is nothing, and it becomes possible to maintain the cleaning efficiency.

  In addition, in the cleaning medium removing process from the object to be cleaned after cleaning, an air flow toward the gap is generated, and the cleaning medium is re-flighted by applying the air flow to a portion exposed from the gap, thereby easily cleaning the medium. Can be removed.

Hereinafter, the shape of the cleaning medium M will be described.
In the first means, as the surface shape of the washing medium M, as shown in FIG. 4, it is constituted by bent portions M1 bent from the base consisting of a flat surface.

  The position and number of the bent portions M1 can be set so that a gap into which an airflow can enter between the cleaning medium M and the cleaning tank wall surface or the workpiece wall surface can be formed, and the height of the three-dimensional shape formed by the bent portions M1 and M2 is not yet determined. There is no particular limitation as long as it is larger than the width of the sandwiched portion which is clarified by using the flaky cleaning medium for the treatment.

The example shown in FIG. 4A is a so-called bi-fold, and the examples shown in FIGS. 4B and 4C are cases where bent portions M1 and M2 are provided at a plurality of locations. In the case of a location, the opposing sides of each side of the hexagonal base are bent, and the bending direction of the bent portions is the same in the opposite sides indicated by reference numeral M1 (FIG. 4 (b- In the case of 1)) and as indicated by reference numeral M2 with respect to the base, there are cases where the directions are opposite to each other (the bending directions of M1 and M2 are different) (FIG. 4 (b-2)). Selected. In FIG. 4, (b-2) and (c-2) are arrow views in the directions indicated by reference numerals (b-2) and (c-2) in (b-1) and (c-1). is there.
If the flexion bends M1, M2 that are provided at a plurality of positions is bent in the same direction with respect to the base, a gap between the base and the bent portion, also, the bent portion relative to the base Are bent in opposite directions, a gap is formed between each of the front and back surfaces of the base and the bent portion. In addition, in FIG. 4, the bent part is provided in the side part which opposes among the side parts of a polygonal base part, but it is not restricted to this, According to the size which does not inhibit the approach of the airflow in a clearance gap It is also possible to provide bent portions having the same or opposite bending directions in adjacent side portions.

FIG. 5 shows a case where the number of the bent parts M1 and M2 shown in FIG. 4 is increased. In this case, the polygonal side part forming the base is also increased, and a plurality of side parts facing each other are arranged. A bent portion having the same bending direction (FIG. 5 (a-1)) or opposite (FIG. 5 (b-2)) is provided as the selected bent portion similar to that shown in FIG.

As shown in FIGS. 6 to 9, the production method includes a method in which a tape that has been creased by passing through a roller mold in advance is cut with a tape cutter or the like to form a cleaning medium. as long obtained manufacturing method have a particularly limited to the above.

In the cleaning process, even if the above-described three-dimensional cleaning medium and the cleaning tank wall are attached, a gap is formed between the cleaning medium and the cleaning tank wall so that an airflow can enter. In this case, an air flow toward the gap is generated, and if the air flow that enters the gap separates the cleaning medium and the wall surface of the cleaning tank and overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated and the cleaning medium can re-fly. It becomes.
As a result, it is possible to maintain the cleaning efficiency without reducing the amount of the cleaning medium that contributes to the cleaning.
Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the wall surface of the cleaning tank and the charge can be eliminated, so that the effect can be enhanced.

Furthermore, in the cleaning medium removal process from the cleaning target after cleaning, a gap is formed between the cleaning medium and the surface of the cleaning target so that airflow can enter even if the cleaning medium and the cleaning target are attached.
In this case, when the airflow toward the gap is generated and the force that separates the airflow between the cleaning medium and the surface of the object to be cleaned overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated, and the cleaning medium can be easily removed. It becomes possible.

  Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the surface of the object to be cleaned, so that the effect can be enhanced.

In the present embodiment, the case of the surface shape with a bending curve portion M1, M2, for example, FIG. 5 (a), the as shown in (b), by providing a plurality of positions, FIG. 10 (a), ( As shown in b), any airflow comes from any direction and hits any one of the bent portions, so that it can have a shape that can fly reliably.

  Further, as shown in FIG. 10C, even if there is a gap having the same width as the thickness of the flaky cleaning medium M at the joint of the cleaning object W, the joint in the joint or the cleaning tank, or the joint, When the portion M1 or M2 stops being pinched and the airflow hits the portion exposed from the gap, the cleaning medium M re-flys and accumulation does not proceed.

  As a result, the amount of the cleaning medium M that contributes to cleaning is not reduced in the cleaning process, and the cleaning medium M accumulated in the gap between the objects to be cleaned shields the new cleaning medium from entering the object to be cleaned. The cleaning efficiency can be maintained.

  Further, also in the cleaning medium removal process from the cleaning target after cleaning, an air flow toward the gap is generated, and the cleaning medium M is re-flighted by applying the air flow to the portion exposed from the gap, so that the cleaning medium can be easily used. Can be removed.

In the second means, as the surface shape having a rising portion of the cleaning medium M, it is a curved shape as shown in FIG. 11.
The degree of curvature can be determined by the use of an untreated flaky cleaning medium that can form a gap through which airflow can enter between the cleaning medium and the wall surface of the washing tank or the work wall, and the height of the three-dimensional shape formed by the curved portion is There is no particular limitation as long as it is larger than the width of the pinched portion that has been clarified.

  As a manufacturing method, as shown in FIG. 12, there is a method in which a tape that has been passed through a roller mold and deformed into a curved shape is cut with an electronic tape cutter to form a cleaning medium. Here, an arbitrary curvature can be set according to the diameter of the roller mold.

As an alternative to the method described above,
-Cut the tube in the circumferential direction and axial direction to make a cleaning medium.
-Cut the tape that has been wound around the cylindrical core in advance and attached the curl to make the cleaning medium.
・ Apply frictional force to one side and cut the tape that has been warped by extending the surface to make a cleaning medium.
-One side is heated, the surface is thermally expanded and stretched, and the tape that has been warped is cut into a cleaning medium.
-Heat the tape on which materials with different linear expansion coefficients are laminated, and cut the tape warped by the difference in thermal expansion to obtain a cleaning medium.
The manufacturing method is not particularly limited to the above as long as a curved shape is obtained.

In the cleaning process, even if the cleaning medium and the cleaning tank wall are attached, a gap is formed between the cleaning medium and the cleaning tank wall so that the airflow can enter.
In this case, an air flow toward the gap is generated, and if the air flow that enters the gap separates the cleaning medium and the wall surface of the cleaning tank and overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated and the cleaning medium can re-fly. It becomes.

As a result, it is possible to maintain the cleaning efficiency without reducing the amount of the cleaning medium that contributes to the cleaning.
Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the wall surface of the cleaning tank and the charge can be eliminated, so that the effect can be enhanced.

In the cleaning medium removal process from the cleaning target after cleaning, due to the configuration of the cleaning medium, even if the cleaning medium and the cleaning target are attached, a gap through which airflow can enter between the cleaning medium and the surface of the cleaning target Is formed.
In this case, when the airflow toward the gap is generated and the force that separates the airflow between the cleaning medium and the surface of the object to be cleaned overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated, and the cleaning medium can be easily removed. It becomes possible.

  In the case of a curved surface shape, as shown in FIG. 13 (a), since the state of adhesion to the surface of the object to be cleaned and the wall surface of the cleaning tank is a line contact, airflow may enter most of the surfaces on the side in contact. It is possible and can fly easily. During cleaning, since the cleaning medium M bends at the time of collision, surface contact with the surface of the object to be cleaned is possible.

  Further, as shown in FIG. 13B, even if there is a gap having the same width as the thickness of the flaky cleaning medium M at the joint of the cleaning object W, the joint in the joint or the cleaning tank, or the joint. The pinching is stopped at the curved portion, and the cleaning medium is re-flighted by the airflow hitting the portion exposed from the gap, and the accumulation does not proceed.

As a result, the amount of the cleaning medium that contributes to cleaning is not reduced in the cleaning process, and the cleaning medium accumulated in the gap between the cleaning objects shields the new cleaning medium from entering the cleaning object. There is nothing, and it becomes possible to maintain the cleaning efficiency.
Also, in the cleaning medium removal process from the object to be cleaned after cleaning, an air flow toward the gap is generated, and the cleaning medium is re-flighted by applying the air flow to a portion exposed from the gap, so that the cleaning medium can be easily removed. It can be removed.

In the third means, as shown in FIG. 14 as the surface shape as the rising portion of the cleaning medium, the convex and concave portions are distinguished on both surfaces (in FIG. 14, the convex portions are distinguished by the signs P1 and P2 due to the difference in the protruding direction. ) it is a shape having a.
As for the position and number of the unevenness, a three-dimensional height formed by the uneven portion can form a gap through which airflow can enter between the cleaning medium and the cleaning tank wall surface or the work wall surface, and the unprocessed flaky cleaning medium in advance If it is larger than the width | variety of the clamping part clarified by use, it will not restrict | limit in particular.

  As a manufacturing method, as shown in FIGS. 15 and 16, there is a method in which a tape that has been passed through a roller mold in advance and processed to have irregularities or perforations on both sides is cut with a tape cutter to obtain a cleaning medium.

Other methods of production include
・ A tape that has a protrusion formed by partially dropping adhesive on both sides is cut with a tape cutter to make a cleaning medium, etc. It is not limited to the above.

Thus, in the cleaning process, even if the cleaning medium and the cleaning tank wall are attached, a gap is formed between the cleaning medium and the cleaning tank wall so that the airflow can enter.
In this case, an air flow toward the gap is generated, and if the air flow that enters the gap separates the cleaning medium and the wall surface of the cleaning tank and overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated and the cleaning medium can re-fly. It becomes.
As a result, it is possible to maintain the cleaning efficiency without reducing the amount of the cleaning medium that contributes to the cleaning.

  Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the wall surface of the cleaning tank and the charge can be eliminated, so that the effect can be enhanced.

In the cleaning medium removal step from the cleaning target after cleaning, a gap is formed between the cleaning medium and the surface of the cleaning object so that airflow can enter even if the cleaning medium and the cleaning target are attached.
In this case, when the airflow toward the gap is generated and the force that separates the airflow between the cleaning medium and the surface of the object to be cleaned overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated, and the cleaning medium can be easily removed. It becomes possible.
Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the surface of the object to be cleaned, so that the effect can be enhanced.

In the case of a surface shape having irregularities on both surfaces, for example, as shown in FIG. 14C, the state of adhesion to the surface of the object to be cleaned and the wall surface of the cleaning tank can be point contact. As shown in a), the airflow can enter almost all surfaces on the side in contact with each other, and the shape can fly easily.
During cleaning, since the cleaning medium is bent at the time of collision, surface contact with the surface of the object to be cleaned is possible.
Further, as shown in FIG. 17B, even if there is a gap of the same width as the thickness of the flaky cleaning medium at the joint of the object to be cleaned, the joint in the joint or the cleaning tank, or the joint, The cleaning medium is re-flighted by the airflow hitting the portion exposed from the gap and the accumulation does not proceed.
As a result, the amount of the cleaning medium that contributes to cleaning is not reduced in the cleaning process, and the cleaning medium accumulated in the gap between the cleaning objects shields the new cleaning medium from entering the cleaning object. There is nothing, and it becomes possible to maintain the cleaning efficiency.

  Also, in the cleaning medium removal process from the object to be cleaned after cleaning, an air flow toward the gap is generated, and the cleaning medium is re-flighted by applying the air flow to a portion exposed from the gap, so that the cleaning medium can be easily removed. It can be removed.

Material of the washing medium may be those having antistatic property.
In order to obtain an effective antistatic effect, it is desirable that the surface resistance of the cleaning medium is 10 ¹⁰ Ω / □ or less.
When the cleaning medium is made of metal, it has an antistatic ability by itself, but the antistatic technique particularly in the case of a cleaning medium made of resin is roughly classified into the following three.
・ Kneading type: An antistatic agent is kneaded into a resin beforehand to form a film. There are non-stretching type, biaxial stretching type, and inflation type.

As the antistatic agent, when ionic conduction is used, a known surfactant (anionic, cationic, nonionic, amphoteric type) or a hydrophilic polymer can be used.
When using electronic conduction, known metal particles, conductive particles (conductive carbon, oxide semiconductor, etc.), and conductive polymers can be used as the conductive filler.
・ Coating type: After the film is formed, the surface is coated with an antistatic agent to form a layer with an antistatic effect.
As the antistatic agent, those having an appropriate coating property can be used among known ones such as aqueous, oily, organic, inorganic, and polymeric.
The film thickness is usually submicron, but an effective film may be 0.1 μm or less.
・ A combination of the two.

By using the above-described cleaning medium, an increase in the charge amount due to friction can be suppressed, so that the electrostatic force that causes the cleaning medium to adhere to the cleaning tank wall or the object to be cleaned is weakened.
Therefore, less airflow is required for separating the cleaning medium from the cleaning tank wall or the object to be cleaned. This can reduce the scale of the utility for generating airflow, which further reduces energy consumption. Of course, in this case as well, the effect can be enhanced by using a corona discharge type static elimination means in combination.

Next, an example of a dry cleaning apparatus using the cleaning medium of the present invention will be described.
Prior to the detailed description, some of the terms used in the present invention will be described.
“Dry cleaning” refers to the use of a cleaning medium that is solid at room temperature without using a liquid such as water or a solvent as the cleaning medium.
The gas indicated by the terms “air flow”, “air blow”, and “air nozzle” includes not only general air but also various gases such as inert gas such as nitrogen gas, carbon dioxide gas, and argon gas. Similarly, “compressed air” includes the case where it is replaced with another compressed gas. In addition, the cleaning medium used in the examples refers to the cleaning medium M in which one of the configurations shown in FIGS. 4, 5, 11 and 14 is selected.
FIG. 18 is a front sectional view of a cleaning apparatus using the cleaning medium according to the present invention.
FIG. 19 is a cross-sectional view of the main part of the side surface of the cleaning apparatus shown in FIG.
In both figures, reference numeral 101 is a cleaning tank, 102 is a type 1 nozzle described later, 103 is a corner block, 104 is a cylindrical mesh, 106 is a type 2 nozzle described later, 107 is a type 2 nozzle rotating motor, 108 Is a type 2 nozzle moving motor, 1014 is a work holder, 1015 is a work horizontal rotation motor, 1016 is a work swinging motor, 1017 and 1018 are timing belts, 1019 is a transmission gear, and 1020 is a swing link mechanism. Show.
The configuration of the present embodiment will be described below by dividing it into main parts.
<Washing tank>
The cleaning tank 101 has a box shape that accommodates an object (work) W to be cleaned and a cleaning medium M (both not shown), and opens and closes a lid 101a formed on the upper portion to carry in and out the object to be cleaned W. .

  In order to facilitate the cleaning medium M to be lifted by the airflow of the nozzle 102 having a cleaning medium floating diffusion function used as type 1 described later, a right-angled corner or the like is connected to the connecting portion between the bottom surface 101b and the wall surface 101c (both see FIG. 19). It is desirable that there are no sharp corners. For example, when the corner block 103 as shown in FIG. 19 is provided and the connection portion between the bottom surface 101b and the wall surface 101c is connected at an obtuse angle or smoothly, the air flow blown toward the bottom surface 101b lifts the cleaning medium along the wall surface 101c. It becomes an updraft. Therefore, the cleaning medium that has dropped onto the bottom surface of the cleaning tank can be easily floated and diffused.

FIG. 20 is a partial cross-sectional view of the bottom surface showing a modified embodiment of the bottom surface structure.
A plurality of R grooves (cylindrical curved surface) or depressions (concave curved surface) 101d are formed on the bottom surface 101b of the cleaning tank 1, and the air current of the cleaning medium floating diffusion nozzle 102 used as a type 1 nozzle is blown toward the bottom surface 101b. It may be configured.

Ascending airflow is generated along the R-groove or depression 101d provided on the bottom surface 101b, and the effect of floating and diffusing the cleaning medium M falling on the bottom surface 101b of the cleaning tank 101 is enhanced, and a large amount of cleaning medium collides with the object to be cleaned. And can be cleaned efficiently.
As the concave curved surface, any part such as a part of a spherical surface or a part of a spheroid surface may be adopted as necessary.
<Cylindrical mesh>
In order to discharge the deposit d (see FIG. 1) removed from the workpiece W from the cleaning tank 101, the exhaust port 101e is connected to a filter, a dust collector, etc. (not shown).
In order to prevent the cleaning medium M from being discharged from the cleaning tank 101, a cylindrical mesh 104 is provided on the cleaning tank side of the exhaust port.
The mesh 104 is a metal mesh or the like having a large number of openings of a size that allows the dust d removed from the workpiece W to pass through but the cleaning medium M cannot pass through. What is difficult to do is suitable.
When the cleaning medium M is sucked and brought into contact with the cylindrical mesh 104, the adhering matter d such as dust adhering to the cleaning medium is rubbed or knocked off and separated from the cleaning medium M, passes through the mesh 104, and passes through the exhaust port. It is discharged out of the cleaning tank 101.
<Type 1 nozzle>
This nozzle also serves to prevent clogging of the cylindrical mesh and to float and float the cleaning medium.
In order to float and diffuse the cleaning medium M into the cleaning tank 101, an air blow nozzle 102 in which a large number of small holes are formed along the axial direction of the hollow cylinder is provided.
When the nozzle 102 is rotated as indicated by an arrow A in FIG. 19, the cleaning medium M dropped on the cleaning tank bottom surface 101b by the air flow (shown by arrow B) ejected from the nozzle 102 causes the cleaning tank bottom surface 101b and the wall surface 101c. As shown by the arrow C in the figure, it can be swung up again in the cleaning tank 1.
Thereby, it can prevent that a washing | cleaning medium accumulates in the specific place in a washing tank, and it does not float and diffuse.

  Further, the nozzle 102 is installed inside the above-described cylindrical mesh 104, and also has a function of dispersing the cleaning medium sucked and collected by the cylindrical mesh 104 into the cleaning tank 101 again. That is, the cleaning medium M is sucked and stuck to the cylindrical mesh 104 to prevent the mesh 104 from being completely blocked.

  The nozzle 102 includes nozzle position / posture changing means, and is driven by a motor 105 during a cleaning operation to rotate or reciprocate. The compressed air is supplied to the nozzle 102 through a rotary joint (not shown).

  Since the nozzle 102 can change the position (spraying position) due to movement and / or change in the posture (spraying direction) due to rotation, airflow can be applied to all locations in the cleaning tank 101. The cleaning medium M does not stay in the place.

<Type 2 nozzle>
This nozzle serves both as a cleaning medium acceleration and a cleaning medium floating diffusion.
In order to accelerate the cleaning medium M that has floated and diffused into the cleaning tank 101 toward the cleaning object W, a large number of nozzles 106 are arranged in the cleaning tank.
A general air blow nozzle may be used, but it is desirable to use a nozzle utilizing the Coanda effect in order to suppress air consumption due to the use of a large number of nozzles. In the case of an air nozzle using the Coanda effect, an air flow several times to several tens of times larger than the consumption flow rate can be generated, and a large amount of the cleaning medium M can be accelerated with a small air consumption amount. There are various known examples of nozzles using the Coanda effect.

FIG. 21 is a view showing an example of a known nozzle suitable for the cleaning tank of the present invention.
Among the nozzles using the Coanda effect, in the case of the nozzle 106 having the suction portion 106a and the blowout portion 106b as shown in the figure, the cleaning medium M passes through the inside of the nozzle 106. It can be accelerated efficiently and reliably. Since the cleaning medium M is accelerated efficiently, the necessary cleaning ability can be obtained even with a small amount of supplied air. If the supply air amount is the same, a higher cleaning ability than a general air blow nozzle can be obtained.

Further, in the case of the type 2 nozzle 106, unlike the type 1 nozzle 102, there is nothing to block between the nozzle 106 and the cleaning object W, so that the accelerated air flow and the energy of the cleaning medium M are supplied to the cleaning object W. It can be made to act directly, and high cleaning ability (removability of the deposit d) is obtained.
In addition, the nozzle 106 is provided with a nozzle position / orientation changing means, and by changing at least one of the position of the nozzle (spraying position) and the attitude (spraying direction), cleaning can be completed in a shorter time without uneven cleaning. Can do.

  18 and 19, the nozzles 106 arranged on the bottom surface 101b and the side surface 101c of the cleaning tank are rotated or swung by the nozzle rotation motor 107, and the nozzle 106 disposed on the cleaning tank lid portion 101a shown in FIG. A reciprocating movement is linearly performed by a moving motor (not shown).

FIG. 22 is a diagram showing an example of the rotation mechanism of the cleaning medium acceleration nozzle.
In the figure, reference numeral 109 denotes a nozzle rotation shaft, 1010 denotes a rotary joint, 1011 denotes a compressed air supply pipe, 1012 denotes a timing pulley, and 1013 denotes a timing belt.
The compressed air is supplied to the nozzle 106 through the rotary joint 1010 and the hollow nozzle rotating shaft 109.

The rotation of the motor (not shown) is transmitted to the nozzle rotation shaft 109 via the timing belt 1013 and the timing pulley 1012, and the nozzle 106 swings or rotates.
On the other hand, the supply of the cleaning medium M is performed by floating and diffusing the cleaning medium M into the cleaning tank 1 by the cleaning medium floating diffusion nozzle 102 corresponding to the type 1 nozzle.

Therefore, in this embodiment, it is not necessary to provide piping for supplying a cleaning medium as in a general blasting apparatus, and the cleaning medium acceleration nozzle 106 can be freely moved / rotated and rearranged.
As described above, in FIGS. 18 and 19, the type 1 nozzle 102 also functions to float and diffuse the cleaning medium accumulated on the bottom surface of the cleaning tank.
<Work holding means>
In this embodiment, as shown in FIGS. 18 and 19, five work holders 1014 for holding the cleaning object W are provided.

Two motors 1015 and 1016 attached to the cleaning tank bottom 101b rotate in a horizontal plane and swing around the major axis of each work holder.
As shown in FIG. 19, the torque of the workpiece horizontal rotation motor 1015 is transmitted to the hollow shaft via the timing belt 1017 to rotate the entire workpiece holder 1014 in a horizontal plane. Further, the torque of the workpiece swinging motor 1016 is transmitted to the coaxial shaft through the timing belt 1018, and the workpiece is swung as shown by an arrow D in FIG. 18 through the gear 1019 and the swing link mechanism 1020. As described above, since the posture change has two or more degrees of freedom, even a cleaning object having a complicated shape can be cleaned evenly.
Since the posture of the work holder 1014 can be changed in two axes, the cleaning medium M can be applied to the object to be cleaned W from various angles. Accordingly, there is little cleaning unevenness and cleaning can be completed in a short time.

Next, the operation of the apparatus will be described in the order of steps with reference to FIG. FIG. 23 is a schematic diagram showing how the cleaning medium collides with the object to be cleaned.
<Floating diffusion and accelerated collision of cleaning media>
1: When compressed air is supplied to the nozzle 106 and the nozzle 102 directed to the cleaning tank bottom surface 101b, the cleaning medium M that has fallen on the bottom surface 101b of the cleaning tank rises along the cleaning tank bottom surface 101b and the wall surface 101c. It floats and diffuses.
2: When compressed air is supplied to the nozzle 106 directed to the cleaning target W, the cleaning medium M floating in the cleaning tank 101 is accelerated and collides with the cleaning target W at a high speed (for example, 10 m / s). . (See the figure)
3: Since the position and posture (spraying direction) of the nozzle 106 change by swinging or reciprocating the nozzle 106, the entire surface of the cleaning object W can be cleaned evenly. In addition, by changing the position or posture (spraying position and direction) of the nozzle 106, it is possible to exhibit both the function of diffusing and accelerating the cleaning medium M with one nozzle.
4: Furthermore, by performing horizontal rotation and swinging of the work holding means 1014, the positional relationship between the accelerating nozzle 106 and the cleaning object W changes, and the cleaning medium M is brought into contact with and collided with the entire surface of the cleaning object W without unevenness. be able to.
<Cleaning by contact with cleaning media>
5: When the cleaning medium M contacts or collides with the cleaning object W at high speed, the adhering substance d adhering to the cleaning object W is knocked down. The dust d that has been knocked down rides on the flow of the airflow toward the exhaust port 101e, passes through the cylindrical mesh 1044, and is discharged from the cleaning tank 1011.
6: Further, due to contact or collision between the cleaning object W and the cleaning medium M, part of the dust d adhering to the cleaning object W adheres to the cleaning medium M. The cleaning medium M is sucked to the cylindrical mesh 104 on the flow of airflow toward the exhaust port 101e.
<Removal of dust adhering to the cleaning medium>
7: The cleaning medium M sucked by the cylindrical mesh 104 contacts and collides with the mesh portion. The deposit d adhering to the cleaning medium M is separated from the cleaning medium M and discharged from the cleaning tank 101 here.
In addition, you may make it include the static elimination means (for example, ionizer which produces | generates ionized air) as a component in the vicinity of the mesh 104. FIG. The electrostatic attractive force between the cleaning medium M and the deposit d (see FIG. 1) is weakened, and the deposit d is more easily separated.
8: The cleaning medium M attached to the mesh 104 by the suction action from the exhaust port 101e is diffused again into the cleaning tank 101 by the rotation of the cleaning medium floating diffusion nozzle 102.
By repeating the operations 1 to 8 described above, the deposit d can be effectively removed from the cleaning object W while circulating the cleaning medium M in the cleaning tank 101.
Steps 1 and 2 may be performed alternately or at the same time.
When alternately performed, since the compressed air is not used simultaneously for the floating diffusion of the cleaning medium M and the acceleration of the cleaning medium M, sufficient floating diffusion effect of the cleaning medium M and the cleaning are performed even when the compressed air supply capability is limited. The acceleration effect of the medium M is obtained.
In addition, when the compressed air supply capability is sufficient, by performing the floating diffusion of the cleaning medium M and the acceleration of the cleaning medium M at the same time, the cleaning medium M can be easily supplied in a short time by supplying a large amount of cleaning medium. Unevenness can also be reduced.

However, here, there is a problem that during cleaning, the cleaning medium is charged by friction with the wall surface of the cleaning tank, the object to be cleaned, and another cleaning medium.
In particular, the frequency of friction increases and the charge amount increases in a short time as the cleaning medium is made to fly at a high speed in order to shorten the cleaning time.
Thereby, a washing | cleaning medium, a washing tank wall, or a washing | cleaning target object will adhere with an electrostatic force. In particular, in the case of a flaky cleaning medium having flexibility, the shape of the cleaning medium can follow the shape of the counterpart, so that the surface of the cleaning medium and the surface of the cleaning tank or the surface of the object to be cleaned are in close contact. Once there is a close contact, there is no gap between the cleaning medium and the wall of the cleaning tank or the work wall so that air flow can enter. Since ions cannot enter between the two, it becomes difficult to remove static electricity. As a result, the cleaning medium and the cleaning tank wall or the object to be cleaned remain attached.
As a result, in the cleaning process, the amount of the cleaning medium that contributes to cleaning decreases, cleaning efficiency decreases, and cleaning time increases. Further, in the cleaning medium removing process from the cleaning target after the cleaning, the cleaning medium removing operation takes a long time.

Accordingly, and with that using the washing medium shown in FIG. 4,5,11,14, to form a gap Hairikomeru airflow between the cleaning medium and the cleaning tank wall or a work wall in Example 1.

Thus, in the cleaning process, even if the cleaning medium and the cleaning tank wall are attached, a gap is formed between the cleaning medium and the cleaning tank wall so that the airflow can enter.
In this case, an air flow toward the gap is generated, and if the air flow that enters the gap separates the cleaning medium and the wall surface of the cleaning tank and overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated and the cleaning medium can re-fly. It becomes.
As a result, it is possible to maintain the cleaning efficiency without reducing the amount of the cleaning medium that contributes to the cleaning.
Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the wall surface of the cleaning tank and the charge can be eliminated, so that the effect can be enhanced.
In the cleaning medium removal step from the cleaning target after cleaning, a gap is formed between the cleaning medium and the surface of the cleaning object so that airflow can enter even if the cleaning medium and the cleaning target are attached.
In this case, when the airflow toward the gap is generated and the force that separates the airflow between the cleaning medium and the surface of the object to be cleaned overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated, and the cleaning medium can be easily removed. It becomes possible.
Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the surface of the object to be cleaned, so that the effect can be enhanced.

Also, even if there is a gap of the same width as the thickness of the flaky cleaning medium at the joint of the object to be cleaned, the joint or the joint in the cleaning tank, or the joint, the pinching stops halfway and is exposed from the gap. The cleaning medium re-flys due to the airflow hitting the part, and accumulation does not proceed.
As a result, the amount of the cleaning medium that contributes to cleaning is not reduced in the cleaning process, and the cleaning medium accumulated in the gap between the cleaning objects shields the new cleaning medium from entering the cleaning object. There is nothing, and it becomes possible to maintain the cleaning efficiency.
Also, in the cleaning medium removal process from the object to be cleaned after cleaning, an air flow toward the gap is generated, and the cleaning medium is re-flighted by applying the air flow to a portion exposed from the gap, so that the cleaning medium can be easily removed. It can be removed.

  In this embodiment, the work posture changes in two axes (two degrees of freedom) of horizontal rotation and swing, and further, the acceleration nozzle 106 swings and reciprocates. The cleaning medium M can be collided and contacted from the direction. Therefore, even if the component has a complicated shape, cleaning unevenness is small and cleaning can be performed in a short time. In addition to this, one degree of freedom may be added to slowly move the work up and down. Such movement is also treated as a change in the work posture here.

  Further, even dust that has a relatively strong adhesive force and is difficult to remove by air blow alone can be separated from the object to be cleaned by contacting and colliding with the cleaning medium M flying at high speed. In particular, when the flaky cleaning medium M is used, high cleaning quality and cleaning efficiency can be obtained for the reasons described later, and an excellent effect that the cleaning target W is not damaged is exhibited.

  Further, the adhering substance d adhering to the cleaning medium M is effectively removed by the cylindrical mesh 104, and the cleanliness of the cleaning medium M is always maintained. High cleaning quality is obtained without reattaching to the cleaning object W.

  As described above, when the cleaning device and the cleaning medium shown in the present embodiment are used, a large amount of the cleaning medium is accelerated to collide with the object to be cleaned, and it is difficult to remove the object only with a relatively complicated object or air blow. Even dust with strong adhesion can be cleaned with high quality and efficiency.

  Further, as compared with a method in which a blast material is supplied using a tube or the like as in a general blast gun, a large amount of cleaning medium can be easily supplied without hindering movement and rotational movement of the nozzle. That is, there are few restrictions on the arrangement, movement, and rotation of the nozzles, and the arrangement, movement, and rotation with a high cleaning effect are possible.

  In the present embodiment, the configuration in which the nozzles rotate or move has been described. However, it is also possible to switch and use more nozzles to achieve the same effect as the rotation or movement of the nozzles.

  Next, another example of the dry cleaning apparatus using the cleaning medium of the present invention will be described.

FIG. 24 is a mechanism configuration diagram of a dry cleaning apparatus according to another example of the embodiment of the present invention.
As shown in FIG. 25, the dry cleaning apparatus 1 includes various adhering materials 3 such as a toner adhering to an object to be cleaned 2 (corresponding to a member indicated by symbol W in FIG. 1) (denoted by symbol d in FIG. 1). (Corresponding to the kimono) is removed from the cleaning medium 4 (corresponding to the member indicated by the symbol M in FIG. 1) that flows by the high-speed airflow, and as shown in FIG. 24, the cleaning tank 5 and the circulating airflow generating means 6 The cleaning medium acceleration means 7 and the cleaning medium regeneration means 8 are provided.

As the flaky cleaning medium 4 used in the dry cleaning apparatus 1, an object having an area of 1 to 1000 mm ² and a thickness of about 1 to 500 μm may be used. For example, a resin film piece, a cloth piece, a paper piece, or the like is used to remove toner powder from a synthetic resin or metal component having an average particle diameter of 5 μm to 10 μm used in an electrophotographic image forming apparatus. It is desirable to use a lamellar cleaning medium 4 such as a metal flake.

  When the flaky cleaning medium 4 is used as the cleaning medium 4, as shown in FIG. 25, the contact force concentrates on the edge of the cleaning medium 4 when it collides with the cleaning target object 2 from the end portion. Despite being small, the force necessary to remove the dust 3 can be obtained. Further, since the force is released when the contact force with respect to the object to be cleaned 2 increases, it is possible to apply an excessive force to the object to be cleaned 2 unlike a general blast shot material or an abrasive for barrel processing. There is no need to damage the object 2 to be cleaned. Further, when the flaky cleaning medium 4 collides with the object 2 to be cleaned, the viscous resistance received from the air acts greatly to become an inelastic collision, which is unlikely to rebound. It moves while coming into contact with a large area of the cleaning object 2 due to the collision, and is parallel to the contact surface with respect to the adhering material 3 such as toner particles adhering to the cleaning object 2 due to the scraping action or rubbing action due to this contact. By applying a force, the deposit 3 can be separated from the object to be cleaned 2 with a small force to increase the cleaning efficiency.

  The cleaning tank 5 is formed of a substantially rectangular parallelepiped hollow body, and has a cleaning object input port 9 through which the cleaning object 2 is input on the upper surface, and is formed with an open bottom, which opens and closes the cleaning object input port 9. A free lid 10 is provided, and a cleaning medium regeneration means 8 is provided at the bottom opening. As shown in FIG. 26, a part of the inner wall surface of one side surface of the cleaning tank 5 is provided with a circulation airflow generating means 6, and a circulation path of the circulation airflow on both side surfaces, the bottom surface, and the inner wall surface of the upper surface. Is forming. As shown in FIG. 26 (a), the corners of the inner wall surface forming the circulation path of the circulation airflow are connected at a constant angle θ as shown in FIG. It is formed to circulate the airflow efficiently.

  By setting the constant angle θ to 120 degrees to 150 degrees, the resistance applied to the circulation airflow can be reduced and the circulation can be performed.

  As shown in FIG. 27, the circulation airflow generating means 6 includes a suction part 62 having a suction port 61 having a large diameter, and a discharge part having a compressed air supply port 63 provided on the outer peripheral part on the outlet side of the suction part 62. 64, the air flow is sucked in from the suction unit 62 by the high-speed air flow that is supplied from the compressed air supply port 63 and is generated toward the discharge port 65 of the discharge unit 64, and the amount of compressed air supplied from the compressed air supply port 63 is An amount of air several times to 10 times is discharged from the discharge port 65. By using this air flow generation means 6 for circulation, the amount of compressed air consumed can be reduced compared with the case of using a general air blow nozzle, and the cleaning medium can be circulated with less energy and the inside of the cleaning tank 5 can be circulated. Negative pressure can be easily maintained, and leakage of dust and the like to the outside of the cleaning tank 5 can be prevented. Various gases such as an inert gas such as nitrogen gas, carbon dioxide gas, and argon gas may be supplied instead of the compressed air supplied from the compressed air supply port 6c. Hereinafter, the case where compressed air is used will be described. The circulation airflow generation means 6 is disposed near the bottom of one side wall that forms the circulation path of the circulation airflow in the cleaning tank 5 with the suction port 61 up and the discharge port 65 down.

  As shown in FIG. 24, the cleaning medium acceleration means 7 has a plurality of arrayed acceleration nozzles 71a on the surface orthogonal to the inner wall surface forming the circulation path of the circulation airflow, and the wall surface on which the acceleration nozzles 71a are provided. A plurality of accelerating nozzles 71b in the form of an array are provided on the back surface facing each other, and compressed air supplied from a compressed air source such as a compressor or a pressure tank is ejected from each accelerating nozzle 71 into the cleaning tank 5 to thereby supply the cleaning medium 4. Collide with the object 2 to be cleaned. As the accelerating nozzles 71a and 71b, a jet nozzle similar to the circulation airflow generation means 6 may be used.

  As shown in the perspective view of FIG. 28A and the partial cross-sectional view of FIG. 28B, the cleaning medium regenerating means 8 forms a closed space with the separation member 81 and the hood 82 disposed on the bottom inner wall of the cleaning tank 5. The formed closed space is connected to a dust collector having a negative pressure generation source by a suction pipe 11 such as a hose, and the inside of the hood 82 is made negative pressure. The separation member 81 has a large number of small holes and slits 83 through which gas and powder can pass but the cleaning medium 4 cannot pass through. For example, the separation member 81 is formed of a porous member such as a wire net, a plastic net, a mesh, a punch metal plate, a slit plate, or the like. Then, the dust separated from the object to be cleaned 2 and the cleaning medium that has collided with the object to be cleaned 2 and caused wear or chipping, or the cleaning medium whose elasticity has deteriorated due to long-term use are discharged.

  As shown in the block diagram of FIG. 29 and the piping system diagram of FIGS. 30 (a) and 30 (b), the controller 12 of the dry cleaning apparatus 1 is supplied with the circulating airflow generating means 6 from the pressurized gas supply device 18. An airflow circulation solenoid valve 14 for conducting and non-conducting the compressed air supply pipe to be supplied, an acceleration solenoid valve 15 for conducting and non-conducting the compressed air supply pipe supplied to the cleaning medium accelerating means 7, and cleaning The accelerating air flow switching control valve 16 for switching the compressed air supplied to the accelerating nozzle 71 provided on both wall surfaces of the medium accelerating means 7 in two directions and the suction pipe 11 connecting the cleaning medium regenerating means 8 and the dust collecting device 19 are connected. Regenerative solenoid valves 17 that are non-conductive are connected to each other, and the operation of each solenoid valve is controlled by a drive signal from the starting means 13.

  In this dry cleaning apparatus 1, the object to be cleaned 2 held by the work holding means 20 is put into the cleaning tank 5 by the work moving means 21, and the flaky cleaning medium 4 is circulated in the cleaning tank 5 to be cleaned. The operation of removing the adhering matter 3 such as the toner adhering to 2 will be described with reference to the time chart of FIG.

  The cleaning object 4 held by the work holding means 20 in a state where the flaky cleaning medium 4 is put into the cleaning tank 5 and stacked on the separation member 81 of the cleaning medium regeneration means 8 is cleaned by the work moving means 21. 5 is inserted from the cleaning object inlet 9 and positioned at the initial position, and the cleaning object inlet 9 is closed with the lid 10 to seal the cleaning tank 5. When the starter 13 is operated in this state and a cleaning start signal is input to the control device 12, the control device 12 first opens the airflow circulation electromagnetic valve 14 to circulate from the pressurized gas supply device 18 such as a compressor. For example, compressed air is supplied to the airflow generation means 6, and the circulation airflow generation means 6 generates a circulation airflow that flows along the circulation path of the inner wall surface of the cleaning tank 5. This circulating airflow flows along the separation member 81 of the cleaning medium regeneration means 8, and the airflow acts on the laminar cleaning medium 4 stacked on the separation member 81 from the lateral direction as shown in FIG. 32 (b) and 32 (c), the deposition is gradually lifted from the upper layer portion of the deposited cleaning medium 4 and is transported along the longitudinal direction of the cleaning tank 5 to fly. Since the circulation airflow for causing the cleaning medium 4 to fly is directly jetted from the circulation airflow generating means 6 into the cleaning tank 5, it is possible to apply a large impact force to the accumulated cleaning medium 4, and the cleaning deposited by the circulation airflow. The medium 4 can fly reliably.

  However, here, there is a problem that during cleaning, the cleaning medium is charged by friction with the wall surface of the cleaning tank, the object to be cleaned, and another cleaning medium.

  In particular, the frequency of friction increases and the charge amount increases in a short time as the cleaning medium is made to fly at a high speed in order to shorten the cleaning time.

  As a result, the cleaning medium and the cleaning tank wall or the object to be cleaned adhere with electrostatic force.

In particular, in the case of a flaky cleaning medium having flexibility, the shape of the cleaning medium can follow the shape of the counterpart, so that the surface of the cleaning medium and the surface of the cleaning tank or the surface of the object to be cleaned are in close contact. Once there is a close contact, there is no gap between the cleaning medium and the wall of the cleaning tank or the work wall so that air flow can enter. Since ions cannot enter between the two, it becomes difficult to remove static electricity.
As a result, the cleaning medium and the cleaning tank wall or the object to be cleaned remain attached.

  As a result, in the cleaning process, the amount of the cleaning medium that contributes to cleaning decreases, cleaning efficiency decreases, and cleaning time increases. Further, in the cleaning medium removing process from the cleaning target after the cleaning, the cleaning medium removing operation takes a long time.

Therefore, in Example 2, and the fact that using a washing medium shown in FIG. 4,5,11,14, to form a gap Hairikomeru airflow between the cleaning medium and the cleaning tank wall or workpiece wall.

  Thus, in the cleaning process, even if the cleaning medium and the cleaning tank wall are attached, a gap is formed between the cleaning medium and the cleaning tank wall so that the airflow can enter.

  In this case, an air flow toward the gap is generated, and if the air flow that enters the gap separates the cleaning medium and the wall surface of the cleaning tank and overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated and the cleaning medium can re-fly. It becomes.

  As a result, it is possible to maintain the cleaning efficiency without reducing the amount of the cleaning medium that contributes to the cleaning.

  Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the wall surface of the cleaning tank and the charge can be eliminated, so that the effect can be enhanced.

  In the cleaning medium removal step from the cleaning target after cleaning, a gap is formed between the cleaning medium and the surface of the cleaning object so that airflow can enter even if the cleaning medium and the cleaning target are attached.

  In this case, when the airflow toward the gap is generated and the force that separates the airflow between the cleaning medium and the surface of the object to be cleaned overcomes the electrostatic attraction, the cleaning medium and the wall surface are separated, and the cleaning medium can be easily removed. It becomes possible.

  Further, by using a corona discharge type static elimination means in combination, ions can be sent to the surface of the cleaning medium that is in contact with the surface of the object to be cleaned, so that the effect can be enhanced.

  Furthermore, even if there is a gap of the same width as the thickness of the lamellar cleaning medium at the joint of the object to be cleaned, the joint in the joint or in the cleaning tank, or the joint, the pinching stops halfway and is exposed from the gap. The cleaning medium re-flys due to the airflow hitting the part, and accumulation does not proceed.

  As a result, the amount of the cleaning medium that contributes to cleaning is not reduced in the cleaning process, and the cleaning medium accumulated in the gap between the cleaning objects shields the new cleaning medium from entering the cleaning object. There is nothing, and it becomes possible to maintain the cleaning efficiency.

  Also, in the cleaning medium removal process from the object to be cleaned after cleaning, an air flow toward the gap is generated, and the cleaning medium is re-flighted by applying the air flow to a portion exposed from the gap, so that the cleaning medium can be easily removed. It can be removed.

  In the present embodiment, when the flaky cleaning medium 4 deposited in this way is transported by an air stream to fly, for example, as shown in FIG. 33A, the flaky cleaning medium 4 deposited on the separation member 81 is used. On the other hand, when an air flow perpendicular to the deposition direction of the cleaning medium 4 is applied by the nozzle 22, the compressed air energy required to lift all the accumulated cleaning media 4 is required, as shown in FIG. Thus, it becomes difficult to move as the deposition amount of the cleaning medium 4 increases. Further, even though the cleaning medium 4 directly above the nozzle 22 that ejects the airflow can be moved, the fluidity of the accumulated lamellar cleaning medium 4 is poor, so as shown in FIG. Even if there is a mortar-like inclination, the cleaning medium 4 around the nozzle 22 remains as it is without collapsing, and it is difficult to fly all the accumulated cleaning medium 4. In contrast, the circulation airflow generating means 6 generates a circulation airflow that flows along the circulation path of the inner wall surface of the cleaning tank 5, and causes the airflow to act from the lateral direction of the cleaning medium 4 deposited on the separation member 81. As a result, the cleaning medium 4 deposited with a small amount of energy can be made to fly reliably, and the amount of compressed air supplied to the circulation airflow generation means 6 can be reduced. Further, when the cleaning medium 4 is transported by airflow, the cleaning medium 4 may be clogged in the duct or hose when transported using a duct or hose. However, the circulation path of the circulation airflow is formed by the wall surface of the cleaning tank 5. Therefore, there is no possibility that the cleaning medium 4 is clogged in the circulation path, and the cleaning medium 4 can fly into the cleaning tank 5.

In addition, the circulation airflow generating means 6 for generating the circulation airflow has a suction port 61 (see FIG. 27) in the vicinity of the bottom of one side wall that forms the circulation path of the circulation airflow of the cleaning tank 5, and the discharge port 65. Since the cleaning medium 4 is deposited on the separation member 81 at the bottom of the cleaning tank 5, a strong airflow force is applied along the bottom surface even at a position away from the discharge port 65. A large amount of the cleaning medium 4 can be carried along the wall surface of the cleaning tank 5.
Further, since the cleaning medium 4 entering the suction port 61 is dispersed and the spatial density is small, the suction port 61 can be prevented from being blocked and a circulation airflow can be generated stably. That is, when the suction port 61 is directed downward and disposed near the bottom of the cleaning tank 5, the force of the suction airflow acts only on the cleaning medium 4 near the suction port 61, and a large amount is accumulated at the bottom of the cleaning tank 5. It is difficult to transport the cleaning medium 4, and when the accumulated cleaning medium 4 is sucked in a large amount by the suction port 61, the spatial density of the cleaning medium 4 in the suction port 61 becomes excessive, and the suction port 61. However, it is possible to prevent such a problem from occurring.

  When the preset predetermined time elapses, the control device 12 closes the airflow circulation solenoid valve 14 (see FIG. 29) to stop the circulation airflow generated by the circulation airflow generation means 6, and the control device 12 in FIG. ), While the workpiece 2 is gradually lowered from the initial position by the workpiece moving means 21 (see FIG. 24), the acceleration solenoid valve 15 is opened and the acceleration gas supply device 18 controls the acceleration air flow switching control. Compressed air is supplied to the cleaning medium accelerating means 7 through the valve 16, the compressed air is ejected from one acceleration nozzle 71 a of the cleaning medium accelerating means 7, and the regeneration electromagnetic valve 17 is opened to set the cleaning medium regenerating means 8. The inside of the hood 82 is set to a negative pressure by being connected to the dust collector 19. When the circulation airflow generated by the circulation airflow generation means 6 is stopped, the cleaning medium 4 flying by the circulation airflow falls down. The falling cleaning medium 4 collides with the object to be cleaned 2 by the compressed air ejected from the acceleration nozzle 71a, and removes the adhering object 3 such as toner adhering to one surface of the object 2 to be cleaned.

  The dust removed from the object to be cleaned 2 or the cleaning medium 4 that has collided with the object to be cleaned 2 and adheres to the dust falls due to gravity, and the separating member of the cleaning medium regenerating means 8 sucked by the negative pressure in the hood 82 Get down on 81. The dust falling on the separation member 81 and the dust adhering to the cleaning medium 4 are sucked into the hood 82 by the negative pressure in the hood 82 and collected in the dust collecting device 19, and the cleaning medium 4 to which the dust adheres is removed. Play efficiently.

  When the compressed air is ejected from the accelerating nozzle 71a for a predetermined time, the control device 12 closes the accelerating solenoid valve 15 and the regeneration solenoid valve 17, and operates the cleaning medium acceleration means 7 and the cleaning medium regeneration means 8. Stop. When the regeneration solenoid valve 17 is closed, the negative pressure in the hood 82 is eliminated, the suction force on the hood 82 side with respect to the cleaning medium 4 accumulated on the separation member 81 disappears, and the separation member 81 is separated from the next circulation airflow. The Therefore, the mesh or the like of the separating member 81 is not covered with the cleaning medium 4 and sealed, and the cleaning medium 4 and dust can be continuously separated. Therefore, it is not necessary to replace the cleaning medium 4, and it is sufficient to add the portion of the cleaning medium 4 that has been reduced due to breakage or the like, so that the cleaning medium 4 can be used effectively and maintainability can be improved.

  After that, the air circulation electromagnetic valve 14 is opened again, the circulation air flow generation means 6 generates a circulation air flow, and the cleaning medium 4 deposited and regenerated on the separation member 81 of the cleaning medium regeneration means 8 is regenerated for a predetermined time T1. The acceleration solenoid valve 15 and the regeneration solenoid valve 17 are opened and the acceleration air flow switching control valve 16 is switched to the acceleration nozzle 71b side to remove dust from the object to be cleaned 2 and regenerate the cleaning medium 4. Processing is performed for a predetermined time. The dust removal process from the cleaning object 2 and the regeneration process of the cleaning medium 4 are set longer than the time during which the circulation airflow is generated so that a wide range of the cleaning object 2 can be cleaned. Further, since the compressed air is alternately ejected from the acceleration nozzle 71a and the acceleration nozzle 71b, the air currents ejected from the acceleration nozzle 71a and the acceleration nozzle 71b are prevented from interfering with each other, and the cleaning medium 4 reliably collides with the object 2 to be cleaned. The cleaning effect of the cleaning medium 4 can be enhanced.

  The generation of the air flow for circulation, the processing for removing dust (adhering matter) from the cleaning target object 2 and the regeneration process for the cleaning medium 4 are repeated while gradually lowering the cleaning target object 2 from the initial position, and FIG. As shown in (2), when the cleaning object 2 reaches the return position, the workpiece moving means 21 stops the lowering of the cleaning object 2 and gradually raises the cleaning object 2. Even when the cleaning object 2 is gradually rising, the control device 12 alternately repeats the generation of the air flow for circulation, the dust removal process from the cleaning object 2 and the regeneration process of the cleaning medium 4 to perform the cleaning object. The deposit 3 is removed from the entire surface of 2. Then, as shown in FIG. 34 (c), when the cleaning object 2 reaches the initial position that is the rising end, the control device 12 stops the cleaning operation. When the cleaning operation is stopped, the lid 10 of the cleaning tank 5 is opened, the cleaning object 2 held by the work holding means 18 is taken out from the cleaning tank 5 by the work moving means 19, replaced with a new cleaning object 2 and cleaned again. Start operation.

  In the above description, the case where the entire surface of the cleaning object 2 is cleaned by alternately ejecting compressed air from the acceleration nozzles 71a and 71b of the cleaning medium accelerating means 7 has been described. However, as shown in FIG. By adjusting the injection angles of the acceleration nozzles 71a and 71b, the compressed air may be simultaneously injected from the acceleration nozzles 71a and 71b. Moreover, when dust adheres only to one surface of the cleaning object 2, the compressed air may be jetted from either one of the acceleration nozzles 71a and 71b.

  In the above description, the case where the circulation path of the circulation airflow generated by the circulation airflow generation means 6 is formed by the flat inner surface of the cleaning tank 5 has been described. However, as shown in FIG. A groove 23 formed of a plurality of square or curved surfaces along the flow direction of the circulation airflow may be provided on the wall surface 51 of the cleaning tank 5 that forms the shape. The width of the groove 23 is made smaller than the surface size of the cleaning medium 4 so that the cleaning medium 4 does not fall into the groove 23. By providing the groove 23 in this manner, a space can be formed between the wall surface 51 of the cleaning tank 5 and the cleaning medium 4 to reduce the contact resistance between the wall surface 51 and the cleaning medium 4 and the inside of the groove 23 can be reduced. By flowing the circulation airflow, the cleaning medium 4 can be efficiently transported and a large amount of the cleaning medium 4 can be transported. Further, the circulation airflow is rectified by the plurality of grooves 23 so that turbulent flow is less likely to occur, and the force of the airflow is less likely to be attenuated, so that the cleaning medium 4 can be efficiently transported and flying, thereby further improving the cleaning efficiency. be able to. The height of the groove 23 only needs to allow air current to pass through. For example, if the groove 23 is about 0.1 mm to 1 mm, it can be easily processed.

  Moreover, you may form the wall surface 51 which forms the circulation path | route of the airflow for a circulation of the washing tank 5 in a concave curved surface, as shown in FIG.36 (b). By forming the wall surface 51 forming the circulation path in the concave curved surface in this way, the circulation airflow is prevented from diffusing, and a large amount of the cleaning medium 4 is efficiently conveyed, It is possible to increase the cleaning efficiency by scattering in the cleaning tank 5.

  Further, as shown in FIGS. 37 (a) and 37 (b), air flow rectification that guides the cleaning medium 4 toward the cleaning medium accelerating means 7 on the upper surface and upper side surface of the cleaning tank 5 that forms the circulation path of the circulating air flow. Means 24 may be provided. By providing the airflow rectifying means 24 in the circulation path of the circulation airflow in this way, the cleaning medium 4 can be scattered in a large amount between the cleaning medium accelerating means 7 and the cleaning target object 2, and the cleaning effect can be enhanced. it can. In addition, the cleaning medium 4 whose flow direction has been changed by the airflow rectifying means 24 can directly collide with the cleaning object 2 and be cleaned. The air flow rectifying means 24 is preferably adjusted to change the angle of changing the flow of the air flow depending on the shape and position of the cleaning object 2.

  Further, as shown in FIGS. 38A and 38B, an inclined surface 52 having an opening is provided at the bottom of the cleaning tank 5 without forming the cleaning tank 5 in a substantially rectangular parallelepiped, and the cleaning medium is provided on the inclined surface 52. The regenerating unit 8 may be provided, the circulation airflow generation unit 6 may be provided at the lower end portion of the inclined surface 52, and the circulation airflow may flow along the inclined surface 52 from the circulation airflow generation unit 6. With this configuration, when the cleaning medium 4 collides with the object to be cleaned 2 and removes the adhering matter 3 and then falls onto the separation member 81 of the cleaning medium regeneration means 8, the discharge of the circulating airflow generation means 6 occurs. A large amount of cleaning medium can be gathered with a small supply of compressed air by transporting the cleaning medium 4 by generating the circulating airflow from the circulating airflow generation means 6 to the collected cleaning medium 4 easily in the vicinity of the outlet 65. 4 can be carried and energy saving can be achieved. In addition, by using the place where the cleaning medium regeneration means 8 is installed as a place where the cleaning medium 4 is collected, it is possible to increase the regeneration time of the cleaning medium 4 and increase the regeneration efficiency of the cleaning medium 4.

  In the above description, the case where one circulation airflow generation means 6 is provided in the cleaning tank 5 has been described. However, as shown in FIG. 39, two circulation airflow generation means are provided in the vicinity of the bottom of both side walls of the cleaning tank 5. 6a and 6b may be arranged symmetrically with the separation member 81 of the cleaning medium regenerating means 8 interposed therebetween. In FIG. 39, two circulation airflow generating means 6 a and 6 b are disposed outside the cleaning tank 5, a discharge port 65 is provided in the lower part of the cleaning tank 5, and a suction port 61 is connected to the cleaning tank 5 via the duct hose 25. Connect to the top of In this case, as shown in the block diagram of FIG. 40, the control device 12 includes the piping system of FIG. 41 together with the airflow circulation solenoid valve 14, the acceleration solenoid valve 15, the acceleration airflow switching control valve 16, and the regeneration solenoid valve 17. As shown in the figure, the operation of the circulating airflow switching control valve 26 for switching the compressed air supplied to the circulating airflow generating means 6a, 6b is also controlled. When the circulation air flow is generated in the cleaning tank 5 and the cleaning medium 4 is caused to fly, the controller 12 controls the circulation air flow switching control valve 26 to alternately generate the circulation air flow from the circulation air flow generation means 6a and 6b. As a result, the cleaning medium 5 in the cleaning tank 4 is easily accumulated and retained, so that the cleaning medium 4 in the cleaning tank 5 can be effectively used for cleaning. The frequency of collisions can be increased and cleaning can be performed efficiently. Further, by connecting the suction port 61 to the upper part of the cleaning tank 5 via the duct hose 25, an upward air flow can be generated in the cleaning tank 5, and the air suspending time of the cleaning medium 4 is increased and floated. The amount of the cleaning medium that is present can be increased, and the number of cleaning media 2 that collide with the object to be cleaned 2 can be increased by the compressed air ejected from the acceleration nozzles 71a and 71b to improve the cleaning performance. Even if the suction port 61 is connected to the cleaning tank 5 via the duct hose 25, the duct hose 25 is connected to the upper side of the cleaning tank 5 where the spatial density of the cleaning medium is small. This can prevent the duct hose 25 and the circulating airflow generation means 6a and 6b from being clogged.

  In the above description, the case where one cleaning medium regeneration means 8 is provided in the cleaning tank 5 has been described. However, a plurality of cleaning medium regeneration means 8 are provided at the bottom of the cleaning tank 5, for example, as shown in FIG. In addition to the cleaning medium regeneration means 8, cleaning medium regeneration means 8a to 8d may be provided above and below the array-like acceleration nozzles 71a and 71b of the cleaning medium acceleration means 7. In this case, as shown in the block diagram of FIG. 43, the control device 12 includes the airflow circulation solenoid valve 14, the acceleration solenoid valve 15, the acceleration airflow switching control valve 16, the regeneration electromagnetic valve 17, and the circulation airflow switching control valve 26. In addition, as shown in the piping system diagram of FIG. 44, the suction air flow switching control valve 27 for switching the suction to the cleaning medium regenerating means 8, the cleaning medium regenerating means 8a and 8b provided on the surface of the cleaning tank 5, and the back surface are provided. The operation of the suction airflow switching control valve 28 for switching the suction to the cleaning medium regeneration means 8c, 8d is also controlled. Then, as shown in FIG. 45, when the cleaning object 2 is cleaned by ejecting compressed air from the acceleration nozzle 71a provided on the surface of the cleaning tank 5, the control device 12 regenerates the suction air flow switching control valve 27. In addition to being connected to the means 8, the suction air flow switching control valve 28 is connected to the cleaning medium regenerating means 8c, 8d provided on the back surface, and compressed air is ejected from the acceleration nozzle 71b provided on the back surface of the cleaning tank 5 to be cleaned. When cleaning 2, the suction air flow switching control valve 28 is connected to the cleaning medium regeneration means 8a, 8b provided on the surface. In this way, the adhering matter 3 and the cleaning medium 4 soared by the compressed air ejected from the acceleration nozzle 71a are sucked to the cleaning medium regeneration means 8c and 8d. When the deposit 3 and the cleaning medium 4 are sucked to the cleaning medium regeneration means 8c and 8d, the airflow from the acceleration nozzle 71a acts on the deposit 3 and the cleaning medium 4 in addition to the suction flow of the cleaning medium regeneration means 8c and 8d. Therefore, the flow velocity in the mesh portion of the separation member 81 of the cleaning medium regeneration means 8c, 8d can be dramatically increased, and the ability to remove the deposit 3 adhering to the cleaning medium 4 can be greatly increased. The cleaning medium 4 can be reliably regenerated. In addition, after stopping the ejection of compressed air from the acceleration nozzle 71a, the suction of the cleaning medium regeneration means 8c, 8d is stopped at a certain timing, and the cleaning medium 4 sucked by the cleaning medium regeneration means 8c, 8d is removed. The cleaning medium regeneration means 8c and 8d can be reliably separated from each other.

  Further, the accelerated nozzles 71a and 71b and the object to be cleaned are removed when the washed-up cleaning medium 4 is ejected from the acceleration nozzles 71a and 71b without the waste of falling without being accelerated by the acceleration nozzles 71a and 71b. A large amount of the cleaning medium 4 can be supplied between 2 and the cleaning efficiency can be improved. That is, when cleaning is performed by causing the flaky cleaning medium 4 to collide with the object 2 to be cleaned, the cleaning quality is substantially proportional to the frequency at which the cleaning medium 4 collides with the object 2 to be cleaned at a predetermined speed or higher. Therefore, if the supply amount of the cleaning medium 4 is increased, the cleaning quality can be improved, the cleaning time can be shortened, and the energy consumption can be reduced.

  Further, the cleaning using the cleaning medium 4 can be performed after the rough cleaning is performed using the acceleration nozzles 71a and 71b and the cleaning medium regeneration means 8a to 8d. The operation when rough cleaning is performed in this way will be described with reference to the time chart of FIG.

  The cleaning object 4 held by the work holding means 20 in a state where the flaky cleaning medium 4 is put into the cleaning tank 5 and stacked on the separation member 81 of the cleaning medium regeneration means 8 is cleaned by the work moving means 21. 5 is inserted from the cleaning object inlet 9 and positioned at the initial position, and the cleaning object inlet 9 is closed with the lid 10 to seal the cleaning tank 5. In this state, when the starter 13 is operated and a cleaning start signal is input to the control device 12, the control device 12 opens the acceleration electromagnetic valve 15 and switches the acceleration airflow switching control valve 16 at a constant cycle to accelerate the acceleration nozzle. Accelerated nozzles 71a, 71a, 71b alternately ejecting compressed air, and switching the pressurized air flow switching control valve 16 in synchronization with switching of the compressed air ejection from the acceleration nozzles 71a, 71b. The suction of the cleaning medium regeneration means 8a and 8b and the cleaning medium regeneration means 8c and 8d provided on the surface facing the 71b is switched. That is, when compressed air is ejected from the acceleration nozzle 71 a provided on the surface of the cleaning tank 5, suction is performed by the cleaning medium regeneration means 8 c and 8 d provided on the back surface of the cleaning tank 5. By this operation, the compressed air ejected from the accelerating nozzle 71a hits the object 2 to be cleaned, and most of the dirt and the adherent 3 with weak adhesion attached to the object 2 to be cleaned are removed, and the object 2 to be cleaned is roughly cleaned. . Thereafter, a circulation airflow is generated from the circulation airflow generation means 6, and the cleaning medium 4 deposited on the separation member 81 of the cleaning medium regeneration means 8 is transported and flying, and the cleaning medium 4 flying is used. Wash. When the cleaning with the flying cleaning medium 4 is completed, the compressed air is alternately ejected from the acceleration nozzles 71a and 71b again, and the pressurized air flow is switched in synchronization with the switching of the ejection of the compressed air from the acceleration nozzles 71a and 71b. The object to be cleaned 2 is switched by switching the suction of the cleaning medium regeneration means 8a and 8b and the cleaning medium regeneration means 8c and 8d provided on the surface facing the acceleration nozzles 71a and 71b from which the compressed air is ejected by switching the control valve 16. The cleaning medium 4 adhering to static electricity is removed, the cleaning operation is terminated, the lid 10 of the cleaning tank 5 is opened, and the cleaning object 2 held by the work holding means 18 is taken out from the cleaning tank 5 by the work moving means 19. Then, the new cleaning object 2 is replaced and the cleaning operation is started again. As described above, by performing the rough cleaning or the cleaning-off operation of the cleaning medium 4, the cleaning speed and the cleaning quality can be improved.

  In the above description, the cleaning medium regeneration means 8a to 8d have been described in the case where they are provided on the front and back surfaces of the cleaning tank 5, but as shown in FIG. The inclined surfaces 52a and 52b are provided, the cleaning medium regeneration means 8 is provided on each of the inclined surfaces 52a and 52b, the circulation airflow generating means 6a and 6b are provided at the lower ends of the inclined surfaces 52a and 52b, and the circulation airflow generating means is provided. The circulation airflow may be alternately flowed along the inclined surfaces 52a and 52b from 6a and 6b. Also in this case, it is preferable to provide an air flow rectifying unit 24 for guiding the cleaning medium 4 toward the cleaning medium accelerating unit 7 on the upper surface or the upper side surface of the cleaning tank 5 forming the circulation path of the circulating air flow.

  In this way, when the cleaning medium 4 is caused to fly and the cleaning medium 4 that is flying collides with the object 2 to be cleaned, the cleaning medium 4 is damaged by the collision with the object 2 to be cleaned, and the cleaning medium regenerating means. 8 is discharged to the dust collector 19 through the mesh portion of the separating member 81, and the cleaning medium 4 in the cleaning tank 5 decreases. When the cleaning medium 4 in the cleaning tank 5 is reduced and the amount of scattered material in the cleaning tank 5 is reduced, the cleaning effect is reduced. In some cases, a plurality of objects to be cleaned 2 are held by the work holding means 20 and are put into the cleaning tank 5 for cleaning.

  Therefore, as shown in FIG. 48, when the cleaning medium flying amount measuring means 29 is provided in the cleaning tank 5, and the cleaning object detection means 30a and 30b are provided at regular intervals above and below the acceleration nozzles 71a and 71b. good. For example, as shown in FIG. 49, the cleaning medium flying amount measuring means 29 uses a photoelectric sensor 291 arranged so that the optical axis is orthogonal to the circulation direction of the cleaning medium 4, and the cleaning object detection means 30a, 30b is composed of, for example, a photoelectric sensor having a light projecting / receiving unit 301 and a reflecting plate 302. The light projecting / receiving unit 301 is attached to the front or back surface of the cleaning tank 5 via a transparent window so that the cleaning medium 4 does not interfere with the reflecting plate. Reference numeral 302 denotes an inner wall surface opposite to the light projecting / receiving unit 301, and is arranged so that the optical axis crosses the cleaning tank 5. The cleaning medium flying amount measuring means 29 and the cleaning object detection means 30a and 30b are connected to the control device 12 as shown in the block diagram of FIG. The control device 12 measures the number of times the optical axis of the photoelectric sensor 291 that is the medium flying amount measuring unit 29 is blocked, and quantifies the flying amount of the cleaning medium 4 in a certain time, and determines which of the cleaning object detecting units 30a and 30b. On the other hand, the cleaning operation is controlled when the cleaning object 2 is detected.

  The cleaning operation when the cleaning medium flying amount measuring means 29 and the cleaning object detection means 30a and 30b are provided in the cleaning tank 5 will be described with reference to the time chart of FIG.

  As shown in FIG. 48, after a plurality of objects to be cleaned 2 are held by the work holding means 2018 and put into the cleaning tank 5, when a cleaning start signal is inputted, a circulation airflow is generated from the circulation airflow generation means 6. The cleaning medium 4 deposited on the cleaning medium regeneration means 8 is transported and scattered in the cleaning tank 5. The amount of the scattered cleaning medium 4 is detected by the photoelectric sensor 291 that is the medium flying amount measuring means 29 and input to the control device 12. The control device 12 compares the input amount of scattering of the cleaning medium 4 for a certain time with a preset threshold value, and starts the cleaning operation when the amount of scattering of the cleaning medium 4 exceeds the threshold value. If the amount of scattering of the cleaning medium 4 is less than or equal to the threshold value, a cleaning medium shortage alarm is generated and the cleaning operation is stopped. Thereafter, when the cleaning medium 4 is replenished by a certain amount or shortage from a hopper or the like and the cleaning start signal is input again and the cleaning medium 4 is scattered, the cleaning operation is started when the scattering amount of the cleaning medium 4 exceeds the threshold value. .

  Thus, since the amount of scattering of the cleaning medium 4 is detected and the cleaning medium 4 exceeding a certain amount is used for cleaning, the cleaning can be performed with good cleaning quality. Further, the amount of the cleaning medium 4 that collides with the cleaning object 2 is proportional to the amount of scattering of the cleaning medium 4. Therefore, the control device 12 can also evaluate the cleaning quality from the amount of scattering of the cleaning medium 2 every fixed time. Furthermore, by recording the change in the amount of scattering of the cleaning medium 2, the cleaning quality can be accurately quantified in the cleaning quality.

  When the cleaning operation is started, the workpiece moving means 19 moves the plurality of objects to be cleaned 2 from the workpiece holding means 18 from the top to the bottom, and the first object to be cleaned 2 is arranged on the acceleration nozzles 71a and 71b. When the cleaning object detection signal is input to the control device 12 from the cleaning object detection means 29a when the position that blocks the optical axis of the object detection means 29a is reached, the control device 12 detects the moving speed of the cleaning object 2 and the cleaning object detection. The jet of compressed air from one of the acceleration nozzles 71a and the cleaning medium regeneration means are added at a timing when a time delay for the cleaning object 2 to reach the position of the acceleration nozzles 71a, 71b is added from the distance between the means 30a and the acceleration nozzles 71a, 71b. 8 is determined, the circulation airflow is stopped at that timing, compressed air is ejected from the acceleration nozzle 71a, and the suction of the cleaning medium regeneration means 8 is determined. The start to clean the first object to be cleaned. When the cleaning object detection signal is not input from the cleaning object detection means 30a in this state, the control device 12 performs cleaning based on the moving speed of the cleaning object 2 and the distance between the cleaning object detection means 30a and the acceleration nozzles 71a and 71b. Compressed air ejection from the accelerating nozzle 71a and suction of the cleaning medium regeneration means 8 are stopped at a timing with a time delay for the object 2 to reach the positions of the accelerating nozzles 71a and 71b, and the circulation airflow generating means 6 performs circulation. Generate airflow. This control is repeated each time a cleaning object detection signal is input from the cleaning object detection means 30a, and the plurality of cleaning objects 2 are sequentially cleaned. When the cleaning object 2 reaches the return position and starts to rise, the control device 12 performs the above control every time the cleaning object detection signal is input from the cleaning object detection means 30b arranged under the acceleration nozzles 71a and 71b. The compressed air is repeatedly ejected from the acceleration nozzle 71b to clean the entire surface of the plurality of objects to be cleaned 2.

  Thus, since compressed air is injected from the acceleration nozzles 71a and 71b that consume a large amount of compressed air according to the position of the cleaning object 2, the amount of compressed air used can be reduced to save energy.

  In the above description, the case where the photoelectric sensor 291 is used as the medium flying amount measuring unit 29 has been described. However, the method of integrating the impact force of the cleaning medium 4 with respect to the cleaning target object 2 by the force sensor, and at the end of the process using the weight sensor. A method for measuring the amount of accumulation at the bottom of the cleaning tank 5 using weight measurement, a distance sensor, or the like may be used. When integrating the impact force of the cleaning medium 4, the cleaning quality can be evaluated from the integrated number of impacts.

  As shown in FIG. 52, a workpiece posture changing means 31 is provided between the workpiece moving means 19 and the workpiece holding means 18 to rotate the workpiece holding means 18 around the longitudinal axis by a motor, an air cylinder, etc. A plurality of, for example, three sets of a plurality of array-like acceleration nozzles 71 are provided as cleaning medium accelerating means 7 on one side surface that forms the circulation airflow of the tank 5, and the injection directions of each acceleration nozzle 71 are, for example, the horizontal direction and the vertical direction May be arranged differently. Then, the cleaning object 2 held by the work holding means 18 and put into the cleaning tank 5 is moved up and down while being rotated by the work posture changing means 31 to alternately inject compressed air from a plurality of sets of acceleration nozzles 71. The object 2 to be cleaned is cleaned by switching. Thus, the entire surface of the cleaning object 2 having a complicated shape can be reliably cleaned by moving the cleaning object 2 in the vertical direction while rotating it and injecting compressed air from different directions.

  Next, in the experimental results described in the following examples, dry toner (average particle size of about 5 to 10 μm) used in electrophotographic apparatuses such as copying machines and laser printers is assumed as an object to be removed. However, the present invention is not limited to this, and can also be applied to a general powder or dust deposit cleaning apparatus.

  In this case, it goes without saying that the type of cleaning medium and the flow velocity and flow rate of the air flow are appropriately selected according to the pressure and flow rate of the compressed air source in accordance with the properties of the object to be cleaned and the deposits.

  For example, when the object to be cleaned is easily damaged, if a thin material (thin piece) made of a flexible material such as a resin film is used as the cleaning medium, the thin piece is flexed flexibly so that the object to be cleaned is not damaged.

Below, the experimental result based on the Example mentioned above is shown.
First, in order to obtain the experimental result, in order to observe the influence of the adhesion force of the deposit (toner) to be removed by the dry cleaning method using the configuration shown in the above-described embodiment, the toner cartridge of the copying machine is used. After adhering, the sample was heated at a predetermined temperature for 1 hour to prepare samples having different adhesion forces (weak adhesion, medium adhesion, strong adhesion). A plurality of Silvent air nozzles SL-920A were arranged as blowing means, and the compressed air pressure was set to be constant at 0.2 MPa, and each was washed for 2 minutes.

Here, as a lamellar cleaning medium having flexibility similar to that shown in the present embodiment,
(1) 30 μm thick, 5 mm square polyethylene film (2) 30 μm thick, 5 mm square PET (polyethylene terephthalate) film (3) 100 μm thick, 5 mm square polyethylene film (4) 100 μm thick Four types of 5 mm square PET films were used.
As a comparative example,
(5) Dry cleaning using only air blow without using a cleaning medium and dry cleaning using various granular cleaning media as cleaning media were performed.
Here, as various granular cleaning media, (6) 2 mm square cubic nylon (7) 2 mm diameter nylon sphere (8) 5 mm diameter urethane sponge sphere (9) 2 mm thick, 5 mm diameter PET disc (flexible No sex)
It was used. The results of the experiment are shown in Table 1.

  From the results of Table 1, it can be seen that the dry cleaning method using the flake-shaped cleaning medium having flexibility in the present invention can obtain better cleaning results than the dry cleaning method using the conventional granular cleaning medium. found.

  In addition, among the flaky cleaning media having flexibility, the cleaning result was better for the film that was easily bent.

Next, experimental results when dry cleaning is repeatedly performed using a cleaning medium are shown.
After the toner was adhered to the toner cartridge of the copying machine, the sample was heated at a predetermined temperature for 1 hour to prepare a sample having a medium adhesion. A plurality of air nozzles SL-920A manufactured by Silvent were arranged as blowing means, and the compressed air pressure was set to be constant at 0.2 MPa, and washing was performed for 2 minutes. At this time, the cleaning medium was not changed for each sample, and the transition of the cleaning result with the increase in the number of sample treatments when the same cleaning medium was continuously used was compared.

Here, as a lamellar cleaning medium having flexibility similar to that shown in the present embodiment,
(1) 100 μm thick, 5 mm square polyethylene film (2) 100 μm thick, 5 mm square PET film (3) 100 μm thick, 5 mm square nylon cloth piece (4) 100 μm thick, 5 mm square paper piece (5) Aluminum foil pieces having a thickness of 100 μm and 5 mm square were used. The results of the experiment are shown in Table 2.

  From the results of Table 2, it was found that good cleaning results can be obtained in repeated use, particularly when the cleaning medium is made of resin.

  In the above-described specific example, an example in which dry toner (average particle diameter of about 5 to 10 μm) used in electrophotographic apparatuses such as copying machines and laser printers is used as an adhering object to be removed from the object to be cleaned. However, the present invention is not limited to this, and can be applied to cleaning of general powder and dust deposits. In this case, the type (size, shape, material, etc.) of the cleaning medium, the flow velocity and the flow rate of the air flow are appropriately set according to the properties of the object to be cleaned and the deposits.

(Example showing the effect of the present invention)
Table 3 shows an example of the cleaning result.

  In order to clarify the difference in cleaning ability, after attaching the toner to the toner cartridge of the copying machine, the sample was heated at a predetermined temperature for 1 hour to increase the adhesive force (during the adhesive force). The configuration of the cleaning apparatus was the same as that of Example 2 and FIG.

  The air blow was used by arranging a plurality of air nozzles SL-920A manufactured by Silvent, and washing was performed for 1 minute each so that the compressed air pressure was constant at 0.2 MPa.

As the flaky cleaning medium M having flexibility,
(1) PET film having a curved surface shape of 30 μm and 5 mm square having a bent portion as shown in FIG. 4C (2) PET film having a curved surface shape of 30 μm and 5 mm square as shown in FIG. 3) As shown in FIG. 14 (c), a PET film having a surface shape of 30 μm and 5 mm square having irregularities on both sides was used.

As a comparative example,
(4) 30 μm thick, 5 mm square PET film that does not have a bent part, and (5) Dry cleaning by air blow without using a cleaning medium and flaky cleaning medium M in place of various granular cleaning media Dry cleaning was performed.

As the granular cleaning medium, (6) 2 mm square cubic nylon (7) φ2 mm nylon sphere (8) φ5 mm urethane sponge sphere was used.

The symbols in the table are as follows.
X: Dirt is hardly removed.
Δ: Some cleaning residue remains.
○: Almost clean.
(Double-circle): It is very beautiful.

  From Table 3, it can be seen that the result of the dry cleaning using the flaky cleaning medium M having flexibility according to the present invention as a three-dimensional shape is better than the conventional dry cleaning.

  Further, since the superiority or inferiority of the cleaning result due to the three-dimensional shape of the flaky cleaning medium varies depending on the target item, a desired cleaning result can be obtained by selecting a three-dimensional shape suitable for the item to be regarded as important. Of course, different three-dimensional flaky cleaning media may be used simultaneously, or the three-dimensional shape may be changed for each process by dividing the cleaning process into a plurality of processes.

It is a schematic diagram for demonstrating the advantage using a flexible thin piece. It is a schematic diagram for demonstrating one of the malfunctions in a flexible thin piece. It is a schematic diagram for demonstrating another one of the malfunctions in a flexible thin piece. It is a schematic diagram which shows one form of the washing | cleaning medium by this invention. It is a schematic diagram which shows the other form of the washing | cleaning medium by this invention. It is a schematic diagram for demonstrating the preparation methods of the washing | cleaning medium shown in FIG. It is a schematic diagram for demonstrating the preparation methods of the washing | cleaning medium shown in FIG. It is a schematic diagram for demonstrating the other example of the preparation methods of the washing | cleaning medium shown in FIG. It is a schematic diagram for demonstrating the other example of the preparation methods of the washing | cleaning medium shown in FIG. It is a schematic diagram for demonstrating the effect | action of the washing | cleaning medium by this invention. It is a schematic diagram which shows the modification of the washing | cleaning medium by this invention. It is a schematic diagram for demonstrating the preparation methods of the washing | cleaning medium shown in FIG. It is a schematic diagram for demonstrating the effect | action of the washing | cleaning medium shown in FIG. It is a schematic diagram for demonstrating the further another example of the washing | cleaning medium by this invention. It is a schematic diagram which shows an example of the preparation methods of the washing | cleaning medium shown in FIG. It is a schematic diagram which shows the other example of the manufacturing method of the washing | cleaning medium shown in FIG. It is a schematic diagram for demonstrating the effect | action of the washing | cleaning medium shown in FIG. It is a schematic diagram which shows an example of the dry-type cleaning apparatus using the cleaning medium by this invention. FIG. 19 is a front view of the dry cleaning apparatus illustrated in FIG. 18. It is a figure which shows the washing tank bottom face of the dry-type washing | cleaning apparatus shown in FIG. It is a schematic diagram which shows an example of the well-known nozzle suitable for the washing tank used for the dry-type washing apparatus shown in FIG. It is a schematic diagram for demonstrating the rotation mechanism of the washing | cleaning medium acceleration nozzle used for the dry-type washing | cleaning apparatus shown in FIG. It is a figure for demonstrating the state in which a cleaning medium collides with a cleaning target object. It is a schematic diagram for demonstrating the other example of a dry-type cleaning apparatus. It is a figure which shows the state which removes the deposit | attachment adhering to the washing | cleaning target object by a washing | cleaning medium. It is a figure which shows the structure of cleaning increase. It is a schematic diagram for demonstrating the structure of the airflow generation means for a circulation. It is a figure for demonstrating the structure of a washing | cleaning medium reproduction | regeneration means. It is a block diagram for demonstrating the structure of the drive control part of a dry-cleaning apparatus. It is a piping system diagram of the drive part of a dry-type cleaning apparatus. It is a timing chart which shows cleaning operation of a dry cleaning device. It is a schematic diagram which shows the state which conveys the cleaning medium laminated | stacked on the cleaning medium reproduction | regeneration means by the airflow for circulation. It is a schematic diagram which shows the comparative example which conveys the laminated | stacked washing | cleaning medium with the airflow for circulation. It is process drawing which shows the washing | cleaning operation | movement of the washing | cleaning target object. It is a schematic diagram which shows the state which makes a washing | cleaning medium collide with a washing | cleaning target object with the airflow which ejects from the acceleration nozzle of a washing | cleaning medium acceleration means. It is a block diagram of the inner wall face of the washing tank which forms the circulation path of the airflow for circulation. It is sectional drawing of the washing tank which provided the airflow rectification | straightening means in the circulation path | route of the airflow for circulation. It is sectional drawing of the washing tank which provided the inclined surface in the bottom part. It is a block diagram which shows another example of a dry-type washing | cleaning apparatus. It is a block diagram which shows the structure of the drive control part of the dry cleaning apparatus shown in FIG. It is a block diagram which shows the structure of the drive part of the dry-type cleaning apparatus shown in FIG. It is a block diagram which shows the further another example of a dry-type washing | cleaning apparatus. It is a block diagram which shows the structure of the drive control part of the dry-type cleaning apparatus shown in FIG. It is a block diagram which shows the structure of the drive part of the dry cleaning apparatus shown in FIG. It is a schematic diagram which shows the state which makes a washing | cleaning medium collide with a washing | cleaning target object with the dry-type washing | cleaning apparatus shown in FIG. It is a time chart of cleaning operation including rough cleaning operation and wiping off operation. It is a block diagram which shows another example of a dry-type washing | cleaning apparatus. It is a block diagram which shows the outline | summary of the 5th dry-type washing | cleaning apparatus which has a washing | cleaning medium flying amount measurement means and a washing | cleaning target object detection means. It is a block diagram of the photoelectric sensor which comprises a cleaning medium flying amount measurement means. It is a block diagram which shows the structure of the drive control part of the dry-type washing | cleaning apparatus which has a washing | cleaning medium flying amount measurement means and a washing | cleaning target object detection means. It is a time chart which shows operation | movement of the dry-type cleaning apparatus shown in FIG. It is a block diagram which shows another example of a dry-type washing | cleaning apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1; Dry cleaning apparatus, 2; Cleaning object, 3; Various dusts, such as toner, 4, M; Cleaning medium, 5: Cleaning tank, 6: Circulation air flow generation means, 7: Cleaning medium acceleration means, 71; Acceleration Nozzle, 8; Cleaning medium regeneration means, 81; Separating member, 82; Hood, 11; Suction pipe, 12; Control device, 13; Start-up means, 14: Solenoid valve for air circulation, 15; Accelerated air flow switching control valve, 17; Regenerative solenoid valve, 18; Pressurized gas supply device, 19; Dust collector, 20; Work holding means, 21; Work moving means, 23; Groove, 24; Hose 26; Circulating airflow switching control valve 27, 28; Suction airflow switching control valve 29; Cleaning medium flying amount measuring means 30; Cleaning object detecting means 31; Work posture changing means.

Claims (3)

Contained in the washing tank,
A cleaning medium that is used to remove a deposit that has collided with the object to be cleaned by flying with an air current and has adhered to the object to be cleaned,
The cleaning medium has a bent portion formed by bending from a base portion formed of a flat surface, forms a gap when contacting the wall surface of the cleaning tank, and the airflow enters the gap. Medium. The cleaning medium according to claim 1, wherein the cleaning medium is provided with a plurality of the bent portions. The cleaning medium according to claim 1, wherein the bent portions are provided in different directions with respect to the base portion.

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