TWI482711B - Cleaning device - Google Patents

Description

Clean device

The present invention relates to a cleaning device for removing foreign matter (dust, etc.) adhering to the surface of a material to be cleaned by electrostatic force. It is especially suitable for materials with high smoothness of the surface of the material to be cleaned, such as glass substrates, printed circuit boards (PCB, PCBA, etc.), films, sheets, plastic plates, and the like.

There is known a cleaning system (cleaning device) which moves a cleaning roller while being in contact with a surface of a material to be cleaned while rotating, and uses a potential difference generated between a surface of the material to be cleaned and an electrostatic force. The foreign matter adhering to the surface of the above-mentioned material to be cleaned is removed (for example, refer to Patent Documents 1 and 2).

In the clean roller, since the foreign matter gradually accumulates on the surface, it is necessary to periodically perform maintenance work for removing foreign matter from the surface. Therefore, the applicant can continuously and continuously perform the action of adsorbing and removing the foreign matter of the cleaning roller in order to perform the maintenance work without regular maintenance, and has already proposed a cleaning system in which the transfer roller and the charged control roller are in contact with the cleaning roller. Application (refer to Japanese Patent Application No. 2009-069972, Japanese Patent No. 2009-138107, and Japanese Patent No. 2009-138108).

Fig. 15 is an explanatory view showing the arrangement of the constituent elements constituting the conventional clean system A. The cleaning roller 111 is provided with a charge on the surface by an electrostatic force to adsorb foreign matter adhering to the surface S1 of the material S to be cleaned. On the opposite side of the cleaning roller 111 from the material S to be cleaned, a charging control roller 121 that rotates while being in contact with the surface of the cleaning roller 111 is provided. And a transfer roller 131.

The charging control roller 121 allows the outer peripheral surface of the cleaning roller 111 to have a charge that adsorbs foreign matter adhering to the surface S1 of the material S to be cleaned by an electrostatic force. The charging control roller 121 is connected to the external power source 141, and a voltage is applied to the charging control roller 121 by the external power source 141. Further, the transfer roller 131 may have a charge on the outer peripheral surface thereof to adsorb foreign matter adhering to the surface of the clean roller 111 by an electrostatic force.

A brush roller is provided in contact with the transfer roller 131 so as to be rotatable, and the brush roller is rotated in a direction opposite to the rotational direction of the transfer roller 131 to scrape off foreign matter adhering to the surface of the transfer roller 131. In order to rotate in the rotational direction of the brush roller 151, a metal roller 152 is provided in contact with the brush roller 151. In order to generate a potential difference with the transfer roller 131, an external power source 153 is connected to the metal roller 152, and a voltage is applied.

In the vicinity of the metal roller 152, a clean blade 146 for scraping foreign matter is provided. Further, a suction port 145 for a gas vacuum means for attracting foreign matter is provided in the vicinity of the surface of the metal roller 52.

In the above-described cleaning system A, in order to remove the foreign matter adsorbed on the transfer roller 131, the function of the transfer roller 131 is maintained for a long period of time, and in addition to the charging control roller 121 that occupies the arrangement space, the brush roller 151 and the metal roller 152 are disposed. Wait. Therefore, it is desirable to have a cleaning device having a structure in which the arrangement of the brush roller 151, the metal roller 152, and the like is arranged as small as possible and the space is not occupied.

In addition, these cleaning rollers 111, the charging control roller 121, and the transfer roller The wheel 131, the brush roller 151, and the metal roller 152 are integrally formed as one unit, and the rotating shaft 131a of the transfer roller 131 is rotatably attached to a device frame (not shown) to form a unit as a whole to rotate the transfer roller 131. The shaft 131-a has a configuration in which a center is rotated relative to the device frame.

Therefore, when the cleaned material having the unevenness on the surface and the cleaned material having the curved contact with the cleaning roller 111, the cleaning roller 111 swings in a circular arc centering on the rotating shaft 131a of the transfer roller 131, so that The pressure in the vertical direction of the cleaning roller 111 is not easily stabilized, and further improvement is required in order to firmly press the cleaning roller 111 in the vertical direction.

[Patent Document 1] Japanese Patent Laid-Open No. Hei 8-203851

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2010-99565

The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a cleaning device that can firmly press a cleaning roller from above and that can be advantageously arranged in order to achieve miniaturization.

In order to achieve the above object, the cleaning device (1) of the present invention has a cleaning roller that rotates while being in contact with the surface of the material to be cleaned, and simultaneously moves relative to each other while rotating in contact with the surface of the cleaning roller. a transfer roller; a brush roller for removing foreign matter on the transfer roller; and a metal roller for removing the foreign matter from the brush roller; and the cleaning roller adheres to the cleaned material by electrostatic force by the cleaning roller Foreign matter such as dust on the surface; the clean device is characterized by a main frame having a sleekly mounted cleaning roller, and a sub frame in which the transfer roller, the brush roller, and the metal roller are integrally rotatably mounted through a bearing (sub) The sub-frame is rotatably attached to the main frame in a state where the transfer roller is positioned above the cleaning roller.

According to the cleaning apparatus (1), the cleaning roller is attached to the main frame, and the transfer roller, the brush roller, and the metal roller are integrally attached to the sub-frame rotatably attached to the main frame. In the state, the transfer roller is located above the clean roller. Therefore, the cleaning roller can be firmly pressed from above by the transfer wheel mounted on the sub-frame by the weight of the entire transfer roller, the brush roller, and the metal roller. Further, since the sub-frame is rotatably attached to the main frame, even the cleaned material having the unevenness on the surface and the cleaned material having the curved contact with the clean roller, and the cleaning roller bounces upward in the vertical direction. Further, since the transfer roller can be reversed in accordance with the above operation, the cleaning roller can be firmly pressed in the vertical direction by the transfer roller.

In addition, since the sub-frame (transfer roller, brush roller, and metal roller) is lifted by the above-described rotation, maintenance work such as visual inspection and cleaning inside the device can be easily performed. In other words, when the sub-frame is rotated largely upward, the transfer roller is separated from the cleaning roller, and the opening between the two is large, so that the maintainability of each roller can be improved.

Further, the cleaning device (2) of the present invention is in the aforementioned cleaning device (1) A bearing member detachably attachable to the main frame is provided, and a rotating shaft of the metal roller is rotatably attached to the bearing member.

According to the cleaning device (2), since the bearing member detachably attached to the main frame is used, the bearing member is detached from the main frame, and by removing the rotating shaft of the metal roller from the bearing member, The sub-frame integrally provided with the transfer roller, the brush roller, and the metal roller is detached from the main frame at a time, and the mounting of a plurality of rollers can be easily performed at one time.

Further, in the cleaning device (3) of the present invention, the transfer roller, the brush roller, and the bearing of the metal roller are provided in the sub-frame through the insulator, and are formed to pass through the transfer roller. And the outer ring of the bearing of the brush roller is configured to apply electric charge.

According to the above-described cleaning device (3), since the electric charge is applied through the outer ring of the bearing, the structure in the vicinity of the bearing is simple, and it is advantageous in terms of suppressing an increase in cost. Further, since the electrode portion to which the electric charge is applied is brought into contact with the outer ring of the aforementioned bearing, there is no sliding portion, and the absence of electrode wear does not exist. Further, it is not necessary to provide a charging control roller that controls a large amount of space occupied by the charging of the cleaning roller or the like, so that the size of the device can be reduced.

Further, in the cleaning device (4) of the present invention, the bearing of the cleaning roller is fixed to a housing of the insulator, and the main frame is formed to be movable in a vertical direction. a guide groove portion that incorporates the outer casing, and in a state where the sub-frame is attached to the main frame, the outer casing is lifted by a spring force of the spring device, thereby The structure in which the cleaning roller is in contact with the transfer roller.

According to the above-described cleaning device (4), since the outer casing is lifted by the elastic pressure of the spring means, the cleaning roller comes into contact with the transfer roller, so that a stable contact state can be ensured.

Further, the cleaning device (5) of the present invention is provided in the cleaning device (1), and is detachably attached to the lower portion of the main frame and below the brush roller and the metal roller for collecting Foreign matter recycling bin for foreign objects recovered by the cleaning roller.

According to the above-described cleaning device (5), the accumulation portion (recovering portion) of foreign matter (dust) can be easily secured, and can be easily removed. In particular, when the foreign matter accumulated is discarded, the foreign matter collecting box can be removed, so that the foreign matter can be discarded easily.

Further, the cleaning device (6) of the present invention is in the above-described cleaning device (5), in which the cleaning mechanism for scraping off foreign matter adhering to the surface of the metal roller is detachably provided in the main frame. The mounting portion of the aforementioned clean blade is covered by a part of the aforementioned foreign matter recovery box.

According to the aforementioned cleaning device (6), the above-described cleaning blade can be easily attached/detached, and the replacement is simple. Since the mounting portion of the clean blade is covered by a part of the foreign matter collecting box, the appearance can be improved, and the foreign matter (dust) scraped off by the clean blade can be prevented from scattering around.

Further, the cleaning device (7) of the present invention is the cleaning device (1) in which the rotating shaft of the metal roller passes through a coupling composed of an insulator. Coupling is linked to the driving means.

According to the cleaning device (7) described above, the coupling of the metal roller and the driving means such as the motor can be easily performed by the coupling.

Further, in the cleaning device (8) of the present invention, in the cleaning device (1), the outer casing for fixing the transfer roller, the brush roller, and the bearing of the metal roller is of the same shape having insulating properties.

According to the above-described cleaning device (8), in order to make the bearing and the casing common, the cost can be reduced.

Embodiments of the cleaning apparatus of the present invention will be described below based on the drawings.

Fig. 1 is a plan view showing the components of the cleaning device 1 according to the embodiment, and the cleaning device 1 rotates while the surface of the cleaning roller 2 is in contact with the surface S1 of the material S to be cleaned, and at the same time with respect to the material S to be cleaned. The relative movement is performed to remove foreign matter (for example, a conductor or a dielectric) adhering to the surface S1 of the material S to be cleaned by the cleaning roller 2 by electrostatic force.

The cleaning roller 2 can have an electric charge on the surface that adsorbs foreign matter adhering to the surface S1 of the material S to be cleaned by an electrostatic force. Above the cleaning roller 2, a transfer roller 3 that rotates while being in contact with the surface of the cleaning roller 2 is provided. The transfer roller 3 can change the electric charge of the clean roller 2 by the electrostatic force to adsorb the foreign matter adhering to the surface S1 of the material S to be cleaned. The transfer roller 3 is formed by using a material having a charge on the surface that adsorbs foreign matter adhering to the surface of the clean roller 2 by an electrostatic force. The transfer roller 3 is rotated while being in contact with the surface of the cleaning roller 2, and Between the cleaning rollers 2, a potential difference is generated depending on the surface characteristics of the cleaning roller 2 and the transfer roller 3.

On the obliquely upper side of the transfer roller 3, a brush roller 4 that rotates in a direction opposite to the rotational direction of the transfer roller 3 and that removes foreign matter on the transfer roller 3 is provided. In order to generate a potential difference between the brush roller 4 and the transfer roller 3, the brush roller 4 also has a configuration in which a potential of the same sign as that of the surface of the transfer roller 3 is applied to the metal roller 5 at the time of cleaning.

Therefore, the metal roller 5 which rotates in the interlocking rotation direction of the brush roller 4 is provided. In order to generate a potential difference between the metal roller 5 and the transfer roller 3, the metal roller 5 also has a configuration in which a potential of the same sign as that of the transfer roller 3 is applied to the metal roller 5 at the time of cleaning. The metal roller 5 is a person who removes the foreign matter from the brush roller 4.

In the vicinity of the metal roller 5, a clean blade 6 that scrapes off foreign matter adhering to the surface of the metal roller 5 with a front end scraping portion is disposed, and the foreign blade attached to the surface of the metal roller 5 is scraped off by the cleaning blade 6. The scraped foreign matter is recovered to the foreign matter recovery tank 7.

Next, a more detailed structure of the cleaning device 1 will be described.

As shown in FIGS. 2, 3, and 4, the cleaning device 1 has a main frame 11 and a sub-frame 12 detachably attached to the main frame 11, and a cleaning roller 2 is provided in the main frame 11. Clean blade 6 and foreign matter recovery box 7. On the other hand, in the sub-frame 12, a bearing 14 (Fig. 9) in which the transfer roller 3, the brush roller 4, and the metal roller 5 are rotatably provided through a casing 36 made of an insulator is used as an integral structure unit. Chemical.

As shown in FIGS. 5 and 6, the sub-frame 12 is rotatably attached to the main frame 11 with the rotation shaft 5a of the metal roller 5 as a center of rotation. In this mounted state, the positioning of the transfer roller 3, the brush roller 4, the metal roller 5, and the cleaning blade 6 with respect to the cleaning roller 2 is performed, and the central axis of the transfer roller 3 is substantially positive at the central axis of the cleaning roller 2. Above. Further, since the sub-frame 12 is attached to the main frame 11 in order to position the transfer roller 3 above the cleaning roller 2, the entire frame is attached to the sub-frame by the gravity of the sub-frame 12, the brush roller 4, the metal roller 5, and the like. The transfer roller 3 of 12 can firmly press the cleaning roller 2 from above. Here, the central axis of the transfer roller 3 is positioned substantially directly above the central axis of the cleaning roller 2 because the force of firmly pressing the cleaning roller 2 by the transfer roller 3 is preferable.

Further, since the sub-frame 12 is rotatably attached to the main frame 11 with the rotation shaft 5a of the metal roller 5 as a center of rotation, the followability of the transfer roller 3 and the like with respect to the cleaning roller 2 is preferable.

Further, the sub-frame 12 is lifted up to the extent shown in FIG. 6, that is, maintenance of the cleaning roller 2, the transfer roller 3, the brush roller 4, and the metal roller 5 can be easily performed (for example, inspection of the roller surface, roller) Cleaning).

The rotation shafts 5a of the metal rollers 5 projecting from the side plate portions 12A, 12A of the sub-frame 12 are inserted into the through-holes 11B, 11B formed by the side plate portions 11A, 11A of the main frame 11, and are passed through the side plate portions 11A, 11A. The rotating shaft 5a of the metal roller 5 protruding from the holes 11B, 11B is fitted into the outer casing 13 in which the bearing 14 is assembled, and is fixed. Thereby, the sub-frame 12 is rotatably attached to the main frame 11 centering on the rotating shaft 5a of the metal roller 5. In addition, in The sub-frame 12 is fixed to the main frame 11 in a state where the cleaning roller 2, the transfer roller 3, the brush roller 4, the metal roller 5, and the clean blade 6 are positioned to each other. Further, by detaching the outer casing 13 (including the bearing 14) from the main frame 11, the sub-frame 12 can be detached from the main frame 11.

Since the clean roller 2 and the transfer roller 3 are attached to the respective main frame 11 and the sub-frame 12, respectively, and are disposed in the vertical direction, the resistance of the contact portion of the members functions as a load in the horizontal direction, and The transfer roller 3 is lifted or not converted into a load for lifting the cleaning roller 2. Further, the rotational force generated by the contact resistance between the brush roller 4 and the metal roller 5 is a force that pushes the transfer roller 3 downward, and the force in the direction in which the cleaning roller 2 is lifted is opposite. So there is no problem.

In particular, since the sub-frame 12 is mounted so as to be rotatable about the rotation shaft 5a of the metal roller 5, even if the brush roller 4 is constantly brought into contact with the transfer roller 3 and rotated, the cleaning roller 2 is not reduced. Push the pressure.

Further, as shown in FIGS. 7 and 8, the side plate portions 12A, 12A of the sub-frame 12 are connected by three connecting shafts 17, and the resin case 36 is fixed with the bearing 14 embedded therein, with respect to each bearing. 14. The transfer roller 3, the brush roller 4, and the metal roller 5 are assembled and unitized as an integral structure. The brush roller 4 and the metal roller 5 are configured to transmit power through a gear constituted by an insulator (not shown). As shown in FIG. 13, the roller 4 is rotated by a driving motor to rotate the rotating shaft 5a of the metal roller 5. It also rotates with it.

As shown in Fig. 9, in the substantially triangular plate-shaped bearing housings 13, 36 made of polyacetal resin in which the transfer roller 3 and the bearing 14 of the metal roller 5 are fitted in the center through hole, the inner peripheral surface of the center through hole is formed. Formed with a profile The rectangular engagement groove portion 13a has the electrode 15 disposed in the engagement groove portion 13a. Thereby, the electrode portion 15 is in electrical contact with the outer ring 14a of the bearing 14, so that electric charge can be applied to the transfer roller 3 and the metal roller 5. A convex portion 15a is formed on a side of the electrode portion 15 that is in contact with the bottom surface of the engagement groove portion 13a, and a concave portion 13aa that engages with the convex portion 15a is formed on the bottom surface of the engagement groove portion 13a, and the convex portion 15a and the concave portion 13aa are formed. The engagement relationship between the electrodes 15 does not fall off from the engagement groove portion 13a. Further, three bolts 16 for fixing the bearing housings 13, 36 are provided.

The bearing 14 of the cleaning roller 2 is fixed to the outer casing 21 made of an insulator as shown in detail in Fig. 10. The outer casing 21 has a rectangular main body portion 21a and a flange portion 21b on the upper side thereof wider than the main body portion 21a, and is formed in a substantially T-shape. On the other hand, the inner side surface of the side plate portions 11A and 11A of the main frame 11 is provided with a guide groove member 22 that engages the outer casing 21 guide groove portion 22a so as to be movable in the vertical direction. On both sides of the guide groove portion 22a of the guide groove member 22, a columnar spring housing portion 22b that houses the coil spring 23 is provided. Further, the outer casing 21 of the cleaning roller 2 is attached to the main frame 11 in a state of being engaged with the guide groove member 22.

In a state where the sub-frame 12 is attached to the main frame 11, the coil spring 23 comes into contact with the convex portion 21b, and the outer casing 21 of the cleaning roller 2 is biased upward, and the outer casing 21 is biased by the elastic force of the coil spring 23 (spring means). Lifting up, thus bringing the cleaning roller 2 into elastic contact with the transfer roller 3.

As shown in Figs. 11 and 12, the lower portion of the clean blade 6 is fixed to the blade mounting plate 31, and is detachably attached to the blade mounting plate 31 by a plurality of fixing bolts 32 so as to be attachable and detachable in the horizontal direction and the vertical direction. It is mounted on the lower portion of the main frame 11.

The foreign matter removed from the clean blade 6 is collected, and the foreign matter collecting box 7 including the foreign matter removed by the cleaning roller 2 is collected, and is detachably attached to the lower portion of the main frame 11 by the fixing screw 34, and is under the clean blade 6. On the side, the foreign matter recovery box 7 is located below the brush roller 4, the metal roller 5, and the clean blade 6 in the mounted state.

Fixing screws 34 are provided on both sides of the clean blade 6 provided in the main frame 11, and corresponding to the fixing screws 34, the fixing screws 34 are provided on the side plate portion 7a of the foreign matter collecting box 7. The keyhole of the key hole is inserted into the slot 7b. The lower end portion of the slit 7b extends to the side with respect to the upper portion, and can lock the locking portion 7bb of the shaft portion of the fixing screw 34.

Therefore, in a state where the locking portion 7bb of the slit 7b of the foreign matter collecting box 7 is locked in the shaft portion of each of the fixing screws 34, the foreign matter collecting box 7 is temporarily fixed to the shaft portion of the fixing screw 34, and The foreign matter recovery box 7 can be fixed to the main frame 11 by locking the fixing screws 34. In this state, the side plate portion 7a belonging to a part of the case 7 covers the mounting portion of the clean blade 6.

If the foreign matter recovery box 7 is detached from the main frame 11, the mounting portion of the cleaning blade 6 (the blade mounting plate 31) is exposed, so that the cleaning blade 6 can be easily removed by loosening the fixing bolts 32.

Further, a guide plate 35 (second drawing, fifth drawing) for guiding the foreign matter to the foreign matter collecting box 7 is provided between the transfer roller 3 and the metal roller 5 in the sub-frame 12, so that it can be recovered by the cleaning roller 2 Remove and move to gold It is a foreign object that falls during the process of the roller 5.

As shown in Fig. 13, in order to prevent electric leakage, the rotating shaft 5a of the metal roller 5 is transmitted through the coupling 41 composed of an insulator, and is coupled to the drive motor 42 (driving means). Further, the gear may be connected to the drive motor through a gear formed of an insulator without passing through the coupling.

The outer casing 36 for fixing the transfer roller 3, the brush roller 4, and the bearing 14 of the metal roller 5 is insulative and formed in the same shape to be common. Thereby, the cost can be reduced, the bearing 14 can be easily attached and detached, and the transfer roller 3, the brush roller 4, and the metal roller 5 can be easily replaced.

The present invention can be modified and implemented in the following manner in addition to the above embodiments.

(i) In the above embodiment, the outer casings 36, 13 for fixing the transfer roller 3, the brush roller 4, and the bearing 14 of the metal roller 5 are both insulating and form the same shape, but in other In the embodiment, the outer casing may have a different shape.

(ii) In the above embodiment, the cleaning device 1 is used alone, but two devices may be used in parallel. Further, other cleaning means may be disposed on the lower side of the material to be cleaned S to form a structure in which the upper surface of the cleaned material is cleaned at the same time. Further, the cleaning blade 6 is attached so as to be detachable in the horizontal direction with respect to the main frame 12 for the sake of easy removal, but in other embodiments, it may be detachable in the vertical direction or in other directions.

(iii) In the above embodiment, the sub-frame 12 is rotatably attached to the main frame 11 with the rotation shaft 5a of the metal roller 5 as a center of rotation, but The present invention is not limited to this. As shown in Fig. 14, in another embodiment, the cleaning roller 2A, the transfer roller 3A, the brush roller 4A, and the lower side of the main frame 11 constituting the cleaning device 1 shown in Fig. 2 and the like may be disposed. The metal roller 5A is rotatably provided as an integrated sub-frame 112, and is formed between the cleaning roller 2 of the main frame 11 and the cleaning roller 2A of the sub-frame 112 so as to pass through a material to be cleaned (not shown). The structure of the surface back surface of the aforementioned cleaned material is cleaned. In the sub-frame 112, a configuration in which the transfer roller 3A, the brush roller 4A, and the metal roller 5A are positioned with respect to the cleaning roller 2A is formed.

(iv) In the above embodiment, in order to secure the necessary pressing force generated by the transfer roller 3, the center axis of the transfer roller 3 is located substantially directly above the central axis of the cleaning roller 2, but the present invention In order to prevent the transfer roller 3 from being positioned above the cleaning roller 2 and not causing the floating roller to float, the center of the transfer roller 3 may be used as long as the cleaning roller 3 can press the cleaning roller 2 . The axis is not located substantially directly above the central axis of the cleaning roller 2.

1‧‧‧cleaning device

2, 2A, 111‧‧‧clean roller

3, 3A, 131‧‧‧ Transfer roller

4, 4A, 151‧‧ ‧ brush roller

5, 5A, 152‧‧‧Metal Roller

5a, 131a‧‧‧Rotary axis

6, 146‧‧‧Clean blades

7‧‧‧ Foreign object recycling bin

7a‧‧‧Side plate department

7b‧‧‧ slotting

7bb‧‧‧ card stop

11‧‧‧Main frame

11A‧‧‧Side plate department

11B‧‧‧through hole

12. 112‧‧‧Subframe

12A‧‧‧ both sides

13‧‧‧Shell

13a‧‧‧Clamping groove

13aa‧‧‧ recess

14‧‧‧ bearing

14a‧‧‧Outer ring

15‧‧‧Electrode

15a‧‧‧ convex

16‧‧‧Bolts

17‧‧‧Connected shaft

21‧‧‧ Shell

21a‧‧‧ Body Department

21b‧‧‧Flange

22‧‧‧ Guide groove member

22a‧‧‧Guide groove

22b‧‧‧Spring storage unit

23‧‧‧ coil spring

31‧‧‧ Blade mounting plate

32‧‧‧Fixed bolts

34‧‧‧Fixed screws

35‧‧‧Guideboard

36‧‧‧Shell

41‧‧‧Coupling

42‧‧‧Drive motor

121‧‧‧Powered control wheel

141, 153‧‧‧ external power supply

S‧‧‧Clean materials

S1‧‧‧ surface

Fig. 1 is an explanatory view showing the arrangement of constituent elements constituting the cleaning device according to the embodiment of the present invention.

Fig. 2 is a side view showing the cleaning apparatus of the embodiment.

Fig. 3 is an exploded perspective view of the aforementioned cleaning device viewed from the front side.

Fig. 4 is an exploded perspective view of the aforementioned cleaning device viewed from the lower back side.

Fig. 5 is a side view showing a state in which the sub-frame is attached to the main frame.

Figure 6 is a side view showing the relationship between the sub-frame and the main frame during maintenance.

Fig. 7 is a perspective view showing a state in which the respective rollers are mounted on the sub-frame as seen from above.

Fig. 8 is a perspective view showing a state in which the respective rollers are mounted on the sub-frame as seen from below.

Figure 9 is a perspective view showing the relationship between the outer ring of the bearing and the electrode.

Figure 10 is a partial perspective view showing the bearing structure of the cleaning roller.

Fig. 11 is an exploded perspective view showing the relationship between the foreign matter recovery tank and the cleaning device.

Fig. 12 is an exploded perspective view showing the relationship between the foreign matter recovery tank, the clean blade, and the cleaning device.

Fig. 13 is a perspective view showing a state in which the rotating shaft of the metal roller is coupled to the drive motor.

Fig. 14 is a perspective view showing a cleaning device of another embodiment.

Fig. 15 is an explanatory view showing the arrangement of the respective constituent elements constituting the conventional clean system.

1‧‧‧cleaning device

2‧‧‧Clean roller

5a‧‧‧Rotary axis

6‧‧‧Clean blade

7‧‧‧ Foreign object recycling bin

11‧‧‧Main frame

11A‧‧‧Side plate department

12‧‧‧Subframe

12A‧‧‧ both sides

31‧‧‧ Blade mounting plate

34‧‧‧ fixing screws

35‧‧‧ Guide plate

36‧‧‧Shell

Claims (8)

A cleaning device comprising: a cleaning roller that rotates while being in contact with a surface of a material to be cleaned while moving relative to each other; a transfer roller that rotates while contacting the surface of the cleaning roller; and removes foreign matter on the transfer roller. a brush roller; and a metal roller for removing the foreign matter from the brush roller; and the cleaning device removes foreign matter such as dust adhering to the surface of the material to be cleaned by electrostatic force, wherein the cleaning device is characterized in that: a main frame to which the cleaning roller is mounted; and a sub-frame in which the transfer roller, the brush roller, and the metal roller are integrally rotatably mounted through a bearing; wherein the transfer roller is located in the cleaning roller In the upper state, the sub-frame is rotatably attached to the main frame. A cleaning device according to claim 1, wherein a bearing member detachably attachable to the main frame is provided, and a rotating shaft of the metal roller is rotatably attached to the bearing member. The cleaning device according to claim 1, wherein the transfer roller, the brush roller, and the bearing of the metal roller are disposed on the sub-frame via an outer casing formed of an insulator, and are formed to transmit through the transfer. The roller and the outer ring of the bearing of the brush roller are configured to apply electric charge. The cleaning device of claim 1, wherein the cleaning device The bearing of the net roller is fixed to an outer casing made of an insulator, and the main frame is formed with a guide groove portion that engages the outer casing so as to be movable in the vertical direction; and the sub-frame is mounted on the main frame. The outer casing is lifted by the elastic pressure of the spring means, thereby forming the structure in which the cleaning roller is in contact with the transfer roller. The cleaning device according to claim 1, wherein the lower portion of the main frame and the brush roller and the metal roller are detachably mounted for collecting the recovered roller. Foreign matter recycling bin for foreign bodies. The cleaning device of claim 5, wherein the main frame is detachably provided with a cleaning blade for scraping foreign matter attached to the surface of the metal roller; the mounting portion of the cleaning blade It is covered by a part of the aforementioned foreign matter recycling box. The cleaning device according to claim 1, wherein the rotating shaft of the metal roller is coupled to the driving means via a coupling formed by the insulator. The cleaning device according to the first aspect of the invention, wherein the outer casing for fixing the bearing of the transfer roller, the brush roller and the metal roller is of the same shape having an insulating property.