JP5044061B1 - Cleaning device - Google Patents

Abstract

For the purpose of providing a cleaning device having a compact structure capable of firmly pressing the cleaning roller from above, a main frame (11) to which the cleaning roller (2) is rotatably attached, and a transfer roller (3 ), A brush roller (4) and a metal roller (5), and a sub-frame (12) integrally attached rotatably via a bearing (14), the sub-frame (12) being a metal roller ( It is attached to the main frame (11) so as to be rotatable about the rotation shaft (5a) of 5). The cleaning roller (2) can be firmly pressed from above via the transfer roller (3) attached to the subframe (12).
[Selection] Figure 5

Description

  The present invention relates to a cleaning device that removes foreign matters (such as dust) adhering to the surface of a material to be cleaned by electrostatic force. In particular, it is suitable when the material to be cleaned is a material having relatively high surface smoothness such as a glass substrate, a printed circuit board (PCB, PCBA, etc.), a film, a sheet, and a plastic plate.

  The cleaning roller is relatively moved while rotating while being in contact with the surface of the material to be cleaned, and the foreign matter adhering to the surface of the material to be cleaned is removed by utilizing a potential difference generated between the surface of the material to be cleaned. A cleaning system cleaning device that is removed by electrostatic force is known (see, for example, Patent Documents 1 and 2).

  In such a cleaning roller, since the foreign substances are sequentially accumulated on the surface, it is necessary to periodically perform maintenance work for removing the foreign substances from the surface. In view of this, the applicant, without performing the maintenance work regularly, allows the cleaning roller to perform the foreign matter adsorption removal operation stably over a long period of time. (See Japanese Patent Application No. 2009-069972, Japanese Patent Application No. 2009-138107, Japanese Patent Application No. 2009-138108).

  FIG. 15 is an explanatory diagram showing a layout of each component constituting the conventional cleaning system A. The cleaning roller 111 can charge the surface with a charge for adsorbing foreign matter adhering on the surface S1 of the material to be cleaned S using electrostatic force. On the opposite side of the cleaning roller 111 from the material to be cleaned S, a charging control roller 121 and a transfer roller 131 that rotate while contacting the surface of the cleaning roller 111 are provided.

  The charge control roller 121 charges the outer peripheral surface of the cleaning roller 111 with a charge for adsorbing foreign matter adhering on the surface S1 of the cleaning material S using electrostatic force. The charging control roller 121 is connected to an external power source 141 so that a voltage is applied to the charging control roller 121 by the external power source 141. Further, the transfer roller 131 can charge the outer peripheral surface of the charge for adsorbing the foreign matter adhering to the surface of the cleaning roller 111 using electrostatic force.

  A brush roller 151 that rotates in the direction opposite to the rotation direction of the transfer roller 131 and scrapes off foreign matter adhering to the surface of the transfer roller 131 is provided in contact with the transfer roller 131 to be rotatable. A metal roller 152 is installed in contact with the brush roller 151 so as to rotate in the direction in which the brush roller 151 rotates. An external power source 153 is connected to the metal roller 152, and a voltage is applied so as to generate a potential difference with the transfer roller 131.

  In the vicinity of the metal roller 152, a cleaning blade 146 for scraping off foreign matter is provided. Further, near the surface of the metal roller 152, there is provided a suction port 145 for air vacuum means capable of sucking foreign matter.

  In the above-described cleaning system A, in order to remove the foreign matter adsorbed to the transfer roller 131 and maintain the function of the transfer roller 131 for a long period of time, in addition to the charging control roller 121 which takes a space for arrangement, the brush roller 151, A metal roller 152 and the like are provided. For this reason, there is a need for a cleaning device having a structure in which the arrangement of the brush roller 151, the metal roller 152, and the like is as compact as possible, and in which a part that takes up an arrangement space is eliminated.

  The cleaning roller 111, the charging control roller 121, the transfer roller 131, the brush roller 151, and the metal roller 152 are integrally configured as one unit, and the rotation shaft 131a of the transfer roller 131 is attached to an apparatus frame (not shown). The entire unit is rotatably mounted and has a structure in which the entire unit rotates with respect to the apparatus frame around the rotation shaft 131a of the transfer roller 131.

JP-A-8-203851 JP 2010-99565 A

  Therefore, when the cleaning material having a surface irregularity or the cleaning material having a warp contacts the cleaning roller 111, the cleaning roller 111 swings in an arc shape around the rotation shaft 131a of the transfer roller 131. The pressing force acting in the vertical direction of the roller 111 is difficult to stabilize, and further improvement for pressing the cleaning roller 111 firmly in the vertical direction has been demanded.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a cleaning device that can firmly hold a cleaning roller from above and can realize a layout that is advantageous in achieving compactness.

Means for solving the problems and their effects

  In order to achieve the above object, a cleaning device according to a first aspect of the present invention includes a cleaning roller that rotates while being in contact with the surface of the material to be cleaned, a transfer roller that rotates while being in contact with the surface of the cleaning roller, A brush roller that removes foreign matter on the transfer roller, and a metal roller that removes the foreign matter from the brush roller. The cleaning roller uses electrostatic force to remove foreign matter such as dust that adheres to the surface of the material to be cleaned. A main frame to which the cleaning roller is rotatably attached, and a sub to which the transfer roller, the brush roller and the metal roller are integrally attached via a bearing. And a frame above the cleaning roller. In a state where the rollers are located, it is characterized in that the sub-frame is rotatably mounted on the main frame.

  According to the cleaning device of claim 1, the cleaning roller is attached to the main frame, and the transfer roller, the brush roller, and the metal roller are integrated with the sub-frame that is rotatably attached to the main frame. The transfer roller is positioned above the cleaning roller in a state of being attached to the cleaning roller. Accordingly, the cleaning roller can be firmly pressed from above through the transfer roller attached to the subframe by the total weight of the transfer roller, the brush roller, and the metal roller. In addition, since the sub-frame is rotatably attached to the main frame, a cleaning material having an uneven surface or a cleaning material having a warp contacts the cleaning roller, and the cleaning roller is in a vertical direction. Even if it is lifted upward, the transfer roller can be retracted upward in accordance with its movement, and the cleaning roller can always be firmly pressed in the vertical direction via the transfer roller.

  Further, since the sub-frame (transfer roller, brush roller, and metal roller) can be lifted by the rotation, maintenance such as visual inspection and cleaning inside the apparatus can be easily performed. That is, when the sub-frame is rotated largely upward, the transfer roller is separated from the cleaning roller and a large gap is formed between them, so that the maintainability for each roller can be improved.

  The cleaning device according to claim 2 is the cleaning device according to claim 1, wherein a detachable bearing member is provided on the main frame, and a rotating shaft of the metal roller is rotatably attached to the bearing member. It is characterized by.

  According to the cleaning device of the second aspect, since the bearing member that can be attached to and detached from the main frame is used, the bearing member is removed from the main frame and the rotating shaft of the metal roller is removed from the bearing member. This makes it possible to easily remove the subframe on which the transfer roller, the brush roller, and the metal roller are integrally provided from the main frame at a time, and to easily attach many rollers at a time. Will be able to do.

  The cleaning device according to claim 3 is the cleaning device according to claim 1, wherein bearings of the transfer roller, the brush roller, and the metal roller are provided on the subframe via an insulator, and the transfer roller and the brush It is characterized in that a charge is applied through the outer ring of the roller bearing.

  According to the cleaning device of the third aspect, by applying an electric charge through the outer ring of the bearing, the structure in the vicinity of the bearing becomes simple, which is advantageous in suppressing an increase in cost. In addition, since the charge-providing electrode portion is brought into contact with the outer ring of the bearing, there is no sliding portion and the problem of wear of the electrode portion is eliminated. In addition, since it is not necessary to provide a charge control roller that occupies a large space for controlling the charging of the cleaning roller or the like, the apparatus can be made compact.

  According to a fourth aspect of the present invention, there is provided a cleaning device according to the first aspect, wherein a bearing of the cleaning roller is fixed to an insulator housing, and a guide groove portion with which the housing is movably engaged is provided in the main frame. The cleaning roller is configured to come into contact with the transfer roller when the housing is lifted by a biasing force of a spring means in a state where the sub frame is attached to the main frame. It is a feature.

  According to the cleaning device of the fourth aspect, since the housing is lifted by the biasing force of the spring means, the cleaning roller comes into contact with the transfer roller, so that a stable contact state can be secured.

  According to a fifth aspect of the present invention, there is provided a cleaning device according to the first aspect, wherein a foreign matter recovery case that collects the foreign matter recovered by the cleaning roller is a lower portion of the main frame, and the brush roller and the metal roller It is characterized by being detachably attached below.

  According to the cleaning device of the fifth aspect, it becomes easy to secure a collecting part (collecting part) of foreign matter (dust) and to remove it easily. In particular, when the accumulated foreign matter is discarded, the foreign matter recovery case is simply removed, so that the foreign matter can be easily discarded.

  According to a sixth aspect of the present invention, there is provided a cleaning device according to the fifth aspect, wherein a cleaning blade that scrapes off foreign matter adhering to the surface of the metal roller is detachably provided on the main frame, and an attachment portion of the cleaning blade Is covered with a part of the foreign matter collection case.

  According to the cleaning device of the sixth aspect, the cleaning blade can be easily attached and detached, and can be easily replaced. Since the mounting portion of the cleaning blade is covered with a part of the foreign matter recovery case, the appearance can be improved, and scattering of foreign matter (dust) scraped off by the cleaning blade can be prevented. .

  According to a seventh aspect of the present invention, in the cleaning apparatus of the first aspect, the rotating shaft of the metal roller is connected to the driving means via a coupling made of an insulator.

  According to the cleaning device of the seventh aspect, the insulation between the metal roller and the driving means such as a motor can be easily performed by coupling.

  The cleaning device according to claim 8 is the cleaning device according to claim 1, wherein a housing for fixing a bearing of the transfer roller, the brush roller, and the metal roller has the same shape having insulating properties. It is said.

  According to the cleaning device of the eighth aspect, since the bearing and the housing can be shared, the cost can be reduced.

It is explanatory drawing which shows the layout of each component which comprises the cleaning apparatus which concerns on embodiment of this invention. It is a side view which shows the cleaning apparatus which concerns on embodiment. It is the disassembled perspective view which looked at the said cleaning apparatus from the front upper direction. It is the disassembled perspective view which looked at the said cleaning apparatus from the back lower surface. It is a side view which shows the state which attached the sub-frame to the main frame. It is a side view which shows the relationship between the sub-frame at the time of a maintenance, and a main frame. It is the perspective view which looked at the state where each roller was attached to the subframe from the upper part. It is the perspective view which looked at the state where each roller was attached to the subframe from the lower part. It is a perspective view which shows the relationship between the outer ring | wheel of a bearing and an electrode. It is a fragmentary perspective view which shows the bearing structure of a cleaning roller. It is a disassembled perspective view which shows the relationship between a foreign material collection | recovery case and a cleaning apparatus. It is a disassembled perspective view which shows the relationship between a foreign material collection | recovery case, a cleaning blade, and a cleaning apparatus. It is a perspective view which shows the connection state of the rotating shaft of a metal roller, and a drive motor. It is a perspective view which shows the cleaning apparatus which concerns on another embodiment. It is explanatory drawing which shows the layout of each component which comprises the conventional cleaning system.

  Embodiments of a cleaning device according to the present invention will be described below with reference to the drawings.

  FIG. 1 shows a layout of each component constituting the cleaning device 1 according to the embodiment. The cleaning device 1 rotates while bringing the surface of the cleaning roller 2 into contact with the surface S1 of the material S to be cleaned. However, the cleaning roller 2 uses the electrostatic force by cleaning the foreign material (for example, conductor or dielectric) such as dust adhered to the surface S1 of the cleaning material S by moving it relative to the cleaning material S. To be removed.

  The cleaning roller 2 is capable of charging the surface with a charge for adsorbing foreign matter adhering to the surface S1 of the material to be cleaned S by using electrostatic force. Above the cleaning roller 2, a transfer roller 3 that rotates while contacting the surface of the cleaning roller 2 is provided. The transfer roller 3 can change the charge for adsorbing the foreign matter adhering to the surface S1 of the material S to be cleaned to the cleaning roller 2 using electrostatic force. The transfer roller 3 is formed using a material capable of charging the surface with a charge that adsorbs foreign matter adhering to the surface of the cleaning roller 2 using electrostatic force. The transfer roller 3 rotates while contacting the surface of the cleaning roller 2, thereby generating a potential difference between the cleaning roller 2 and the cleaning roller 2 according to the difference in surface characteristics between the cleaning roller 2 and the transfer roller 3.

  A brush roller 4 that rotates in the opposite direction to the transfer roller 3 and removes foreign matter on the transfer roller 3 is provided obliquely above the transfer roller 3. The brush roller 4 is also configured such that a potential having the same sign as the electric charge charged on the surface of the transfer roller 3 during cleaning can be applied to the metal roller 5 so as to generate a potential difference with the transfer roller 3.

  And the metal roller 5 is installed so that it may rotate in the follower direction with respect to the brush roller 4. The metal roller 5 is also configured to be applied with a potential having the same sign as the charge charged on the surface of the transfer roller 3 during cleaning so as to cause a potential difference with the transfer roller 3. The metal roller 5 removes the foreign matter from the brush roller 4.

  In the vicinity of the metal roller 5, a cleaning blade 6 that scrapes off foreign matter adhering to the surface of the metal roller 5 at the tip scraping portion is disposed, and the foreign matter adhering to the surface of the metal roller 5 by the cleaning blade 6 is disposed. The foreign matter scraped off is collected in the foreign matter collection case 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 includes a main frame 11 and a sub frame 12 that is detachably attached to the main frame 11. The cleaning roller 2 and the cleaning blade are attached to the main frame 11. 6 and a foreign matter recovery case 7 are provided. On the other hand, bearings 14 (FIG. 9) of the transfer roller 3, the brush roller 4, and the metal roller 5 are rotatably provided on the subframe 12 through a housing 36 made of an insulator, and are unitized as an integrated structure.

  As shown in FIGS. 5 and 6, the subframe 12 is attached to the main fountain 11 so as to be able to rotate around the rotation shaft 5 a of the metal roller 5. In the attached state, the transfer roller 3, the brush roller 4, the metal roller 5 and the cleaning blade 6 are positioned with respect to the cleaning roller 2, and the central axis of the transfer roller 3 is positioned almost immediately above the central axis of the cleaning roller 2. It is like that. Further, since the sub frame 12 is attached to the main frame 11 so that the transfer roller 3 is positioned above the cleaning roller 2, the sub frame 12 and the brush roller 4 are interposed via the transfer roller 3 attached to the sub frame 12. The cleaning roller 2 can be firmly pressed from above by the gravity of the entire metal roller 5 or the like. Here, the reason why the central axis of the transfer roller 3 is positioned almost immediately above the central axis of the cleaning roller 2 is preferable because the transfer roller 3 generates a force for firmly pressing the cleaning roller 2. is there.

  Further, since the sub frame 12 is attached to the main foam 11 so as to be able to rotate about the rotation shaft 5a of the metal roller 5, the sub frame 12 has excellent followability to the cleaning roller 2 such as the transfer roller 3. Yes.

  If the subframe 12 is lifted to the extent shown in FIG. 6, maintenance of the cleaning roller 2, the transfer roller 3, the brush roller 4, and the metal roller 5 (for example, checking the roller surface and cleaning the roller) is easily performed. be able to.

  The rotating shaft 5a of the metal roller 5 protruding from the both side plate portions 12A, 12A of the subframe 12 is inserted into the through holes 11B, 11B formed in the side plate portions 11A, 11A of the main frame 11, and the side plate portions 11A, 11A are inserted. The housing 13 in which the bearing 14 is incorporated is fixed to the rotating shaft 5a of the metal roller 5 protruding from the through holes 11B and 11B. Thereby, the sub-frame 12 is rotatably attached to the main foam 11 around the rotating shaft 5a of the metal roller 5. Further, 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 cleaning blade 6 are positioned with respect to each other. It is possible to remove the subframe 12 from the main frame 11 by removing the housing 13 (including the bearing 14) from the main frame 11.

  Here, since the cleaning roller 2 and the transfer roller 3 are separately attached to the main frame 11 and the sub frame 12 and arranged in the vertical direction, the resistance force of those contact portions acts as a horizontal load. Therefore, the load is not converted into a load that lifts the transfer roller 3 or pushes up the cleaning roller 2. Further, the rotational force due to the contact resistance force between the brush roller 4 and the metal roller 5 is a force in a direction to push the transfer roller 3 downward, and is opposite to the force in the direction to lift the cleaning roller 2. Does not occur.

  In particular, since the sub-frame 12 is mounted so as to be rotatable around the rotation shaft 5 a of the metal roller 5, the cleaning roller can be rotated even if the brush roller 4 is always rotated while being in contact with the transfer roller 3. 2 is not reduced.

  Further, as shown in FIGS. 7 and 8, both side plate portions 12A and 12A of the sub-frame 12 are connected by three connecting shafts 17, and the bearings 14 incorporated in a resin housing 36 are fixed. The transfer roller 3, the brush roller 4, and the metal roller 5 are assembled to 14 and unitized as a unitary structure. Although not shown, the brush roller 4 and the metal roller 5 are configured to transmit power via a gear made of an insulator, and the rotating shaft 5a of the metal roller 5 is rotated by a drive motor 42 as shown in FIG. By doing so, the brush roller 4 is also rotated.

  As shown in FIG. 9, the bearing housings 13 and 36 made of polyacetal and having a substantially triangular plate shape in which the bearings 14 of the transfer roller 3 and the metal roller 5 are incorporated in the central through hole are provided on the inner peripheral surface of the central through hole. An engagement groove portion 13a having a rectangular cross section is formed, and the electrode portion 15 is arranged in the engagement groove portion 13a. As a result, the electrode portion 15 is in electrical contact with the outer ring 14 a of the bearing 14, and charges can be applied to the transfer roller 3 and the metal roller 5. A convex portion 15a is formed on the side of the electrode portion 15 that contacts the bottom surface of the engaging groove portion 13a, and a concave portion 13aa that engages the convex portion 15a is formed on the bottom surface of the engaging groove portion 13a. Therefore, the electrode portion 15 is prevented from coming out of the engaging groove portion 13a. The number of bolts 16 for fixing the bearing housings 13 and 36 is three.

  The bearing 14 of the cleaning roller 2 is fixed to a housing 21 made of an insulator as shown in detail in FIG. The housing 21 includes a rectangular main body 21a and a flange 21b wider than the main body 21a provided on the upper side, and is formed in a substantially T shape. On the other hand, guide groove members 22 having guide groove portions 22a with which the housing 21 is movably engaged in the vertical direction are provided on the inner side surfaces of the side plate portions 11A and 11A of the main frame 11. The guide groove member 22 is provided with columnar spring storage portions 22b for storing the coil springs 23 on both sides of the guide groove portion 22a. The cleaning roller 2 is attached to the main frame 11 with the housing 21 of the cleaning roller 2 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 flange portion 21b and biases the housing 21 of the cleaning roller 2 upward, so that the housing 21 is the coil spring 23 (spring means). The cleaning roller 2 is elastically brought into contact with the transfer roller 3 by being lifted by the urging force.

  As shown in FIGS. 11 and 12, the lower portion of the cleaning blade 6 is fixed to a blade mounting plate 31, and a plurality of fixing bolts 32 are attached to the lower portion of the main frame 11 via the blade mounting plate 31. It is detachably mounted in the horizontal and vertical directions.

  A foreign matter recovery case 7 for collecting the foreign matter peeled off by the cleaning blade 6 including the foreign matter removed by the cleaning roller 2 is attached to the lower portion of the main frame 11 and below the cleaning blade 6 by a fixing screw 34. It is attached as possible. The foreign matter recovery case 7 is positioned below the brush roller 4, the metal roller 5, and the cleaning blade 6 in the attached state.

  Fixing screws 34 are provided on both sides of the cleaning blade 6 provided in the main frame 11, and the shaft portion of the fixing screw 34 is provided on the side plate portion 7 a of the foreign material recovery case 7 corresponding to the fixing screws 34. A keyhole-shaped notch 7b that can be inserted is provided. The lower end portion of the notch 7b is a locking portion 7bb that extends laterally with respect to the upper portion and can lock the shaft portion of the fixing screw 34.

The foreign matter recovery case 7 is temporarily fixed to the shaft portion of the fixing screw 34 in a state where the locking portion 7bb of the notch 7b of the foreign matter recovery case 7 is locked to the shaft portion of each fixing screw 34. By tightening 34, the foreign material recovery case 7 is fixed to the main frame 11. In this state, the side plate portion 7 a which is a part of the case 7 covers the attachment portion of the cleaning blade 6.
If the foreign matter recovery case 7 is removed from the main frame 11, the mounting portion of the cleaning blade 6 (blade mounting plate 31) is exposed. Therefore, the cleaning blade 6 can be easily removed by loosening the fixing bolt 32.

  A guide plate 35 (FIGS. 2 and 5) for guiding foreign matter to the foreign matter collection case 7 is provided between the transfer roller 3 and the metal roller 5 of the subframe 12 and is removed by the cleaning roller 2. The foreign matter dropped while moving to the metal roller 5 can be collected.

  As shown in FIG. 13, the rotating shaft 5a of the metal roller 5 is connected to a drive motor 42 (drive means) via a coupling 41 made of an insulator so that no electric leakage occurs. In addition, you may make it connect with the drive motor 42 not through the coupling 41 but through the gearwheel which consists of an insulator.

  All of the housings 36 for fixing the transfer roller 3, the brush roller 4, and the bearing 14 of the metal roller 5 have insulating properties, the same shape, and the common use. As a result, 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.

  In addition to the embodiment described above, the present invention can be implemented with the following modifications.

  (i) The housings 36 and 13 for fixing the bearings 14 of the transfer roller 3, the brush roller 4, and the metal roller 5 are all the same insulative shape. However, in another embodiment, the shape is different. It may be different.

  (ii) In the above embodiment, the cleaning device 1 is used as a single unit, but it is also possible to use two in parallel. It is also possible to arrange another cleaning device below the material to be cleaned S so that the upper and lower surfaces of the material to be cleaned S are cleaned together. The cleaning blade 6 is detachably attached to the subframe 12 in the horizontal direction to facilitate the removal. However, in another embodiment, the cleaning blade 6 may be removable in the vertical direction or other directions.

  (iii) In the above embodiment, the sub-frame 12 is attached to the main foam 11 so as to be rotatable about the rotation shaft 5a of the metal roller 5, but the present invention is not limited thereto. As shown in FIG. 14, in another embodiment, a cleaning roller 2A, a transfer roller 3A, a brush roller 4A, and a metal roller are further provided below the main frame 11 constituting the cleaning device 1 shown in FIG. A sub-frame 112 in which 5A is rotatably integrated is disposed, and a cleaning target material (a cleaning target (a) is disposed between the cleaning roller 2 of the main frame 11 and the cleaning roller 2A of the sub-frame 112 which are opposed to each other. The front and back surfaces of the material to be cleaned may be simultaneously cleaned through (not shown). The sub frame 112 is configured such that the transfer roller 3A, the brush roller 4A, and the metal roller 5A are fixedly positioned with respect to the cleaning roller 2A.

  (iv) In the above embodiment, the central axis of the transfer roller 3 is positioned almost directly above the central axis of the cleaning roller 2 in order to ensure the necessary pressing force by the transfer roller 3. The invention is not limited to this, and the transfer roller 3 can be positioned above the cleaning roller 2 so that the cleaning roller 2 can be pressed by the transfer roller 3 so that the cleaning roller 2 does not lift. Alternatively, a configuration in which the central axis 3 is not located almost directly above the central axis of the cleaning roller 2 may be employed.

DESCRIPTION OF SYMBOLS 1 Cleaning device 2,2A Cleaning roller 3,3A Transfer roller 4,4A Brush roller 5,5A Metal roller 5a Rotating shaft 6 Cleaning blade 7 Foreign substance collection case 7a Side plate part 7b Notch 7bb Locking part 11 Main frame 11A Side plate part 12 , 112 Subframe 12A Both side plate parts 13 Housing 13a Engaging groove part 13aa Concave part 14 Bearing 14a Outer ring 15 Electrode part 15a Convex part 16 Bolt 17 Connection shaft 21 Housing 21a Main body part 21b Gutter part 22 Guide groove member 22a Guide groove part 22b Spring storage part 23 Coil spring 31 Blade mounting plate 32 Fixing bolt 34 Fixing screw 35 Guide plate 36 Housing 41 Coupling 42 Drive motor S Material to be cleaned S1 Surface

Claims (8)

A cleaning roller that moves while rotating while contacting the surface of the material to be cleaned, a transfer roller that rotates while contacting the surface of the cleaning roller, a brush roller that removes foreign matter on the transfer roller, and a brush roller A cleaning device comprising a metal roller for removing the foreign matter, and removing foreign matter such as dust adhering to the surface of the material to be cleaned using electrostatic force by the cleaning roller,
A main frame on which the cleaning roller is rotatably mounted;
The transfer roller, the brush roller, and the metal roller, and a sub-frame to which the roller is integrally attached via a bearing,
A cleaning device, wherein the sub-frame is rotatably attached to the main frame in a state where the transfer roller is positioned above the cleaning roller. A detachable bearing member is provided on the main frame,
2. The cleaning device according to claim 1, wherein a rotating shaft of the metal roller is rotatably attached to the bearing member.   The transfer roller, the brush roller, and the metal roller bearings are provided on the sub-frame via an insulator, and charge is applied through an outer ring of the transfer roller and brush roller bearings. The cleaning device according to claim 1. A bearing of the cleaning roller is fixed to an insulator housing;
A guide groove is formed in the main frame to engage the housing so as to be movable in the vertical direction.
The cleaning roller is configured to come into contact with the transfer roller when the housing is lifted by a biasing force of a spring means in a state where the sub frame is attached to the main frame. Item 4. The cleaning device according to Item 1.   2. A foreign matter collection case for collecting foreign matter collected by the cleaning roller is detachably attached to a lower portion of the main frame and below the brush roller and the metal roller. Cleaning device. A cleaning blade that scrapes off foreign matter adhering to the surface of the metal roller is provided on the main frame in a removable manner.
The cleaning device according to claim 5, wherein a mounting portion of the cleaning blade is covered with a part of the foreign matter recovery case.   2. The cleaning device according to claim 1, wherein a rotating shaft of the metal roller is connected to a driving unit through a coupling made of an insulator.   The cleaning device according to claim 1, wherein a housing for fixing the transfer roller, the brush roller, and the metal roller has the same shape having insulating properties.

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