JP2000334392A - Method and apparatus for cleaning roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the re-adhesion of stains and the adhesion of waste threads to the roll to be cleaned by preventing the dripping of a cleaning solution from a cleaning belt. SOLUTION: An apparatus is composed of a cleaning belt 2 for cleaning the surface of a rotating roll 1 to be cleaned, a back-up roll 3 having an elastic layer at least on the peripheral surface in elastic contact with the surface of the roll 1 rotating the belt 2, a cleaning belt supply mechanism 4 for supplying the 2 reversely to the rotational direction of the roll 1, a press mechanism 5 for pressing the back-up roll 3 to the surface of the roll 1 through the belt 2, and a cleaning solution supply apparatus 6 for supplying a cleaning solution in an amount adjusted to prevent the dropping of the cleaning solution from the clearance between the roll 1 and the belt 2 when the belt 2 is pushed to the roll 1 and the entanglement of the threads of a nonwoven fabric forming the belt 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a roll cleaning method for cleaning a surface of a roll to be cleaned by pressing the cleaning belt against a surface of a rotating roll to be cleaned by a backup roll. When pressed against the roll, the amount of the cleaning liquid in a range where the cleaning liquid does not drip from between the roll to be cleaned and the cleaning belt,
The present invention relates to a method and an apparatus for cleaning a roll impregnated to a cleaning belt, for example, using a long-fiber nonwoven fabric coated with a volatile alcohol on a roll surface before coating molding of a roll component mounted on a copying machine. Applicable to the cleaning method and apparatus.

[0002]

2. Description of the Related Art A conventional apparatus for wiping the surface of a plate making roll (Japanese Patent Laid-Open No. 6-313936) presses a nonwoven fabric mounted on a two-dimensional table against a plate making roll to which a cleaning liquid after alcohol cleaning has adhered. While rotating the plate making roll and scanning the nonwoven fabric on the plate making roll, the non-woven fabric was intermittently fed in a direction opposite to the rotation direction of the plate making roll and wiped.

Further, a conventional work surface cleaning device (Japanese Patent Laid-Open No.
The cleaning liquid is applied to the waste member B which is fed from the pay-out reel KR and is sequentially wound on the take-up reel MR as shown in FIG. By moving the cleaning member CR along with the cleaning liquid, the rotating cleaning roll CR presses and moves the waste member B, so that the surface of the work W is wiped off and cleaned. After cleaning, the work W is retracted downward.

Further, as shown in FIG. 9, a conventional roll cleaning apparatus (Japanese Patent Laid-Open No. 3-176816) removes a roll WR to be cleaned from a cleaning tape CT.
Cleaning device using a supply roll K
The cleaning tape CT supplied from R is pressed against the roll to be cleaned to which the fine powder is adhered by the touch roll TR to perform cleaning, and the running direction of the cleaning tape CT is set to the traveling direction of the surface of the cleaning target roll WR. In the opposite direction, the cleaning tape CT meanders in the width direction of the roll WR to be cleaned.

A conventional roller washer (Japanese Patent Laid-Open No. 7-20)
4588), as shown in FIG. 10, a belt-like felt F stretched between the unwind roller FR and the take-up roller MK is passed through the solvent tank Y to hold the solvent, and is guided via the guide roller GR. The cleaning roller W is supplied in a direction opposite to the rotating direction of the rotating roller W to be cleaned, and the cleaning roller W is pressed against the backup roller BR via the felt F to clean the roller W to be cleaned. Was.

A conventional automatic roll cleaner (JP-A-6-305120) is a non-rotating touch roll covered with a rubber material to secure a uniform contact pressure by an air cylinder AC as shown in FIG. The cleaning is performed by pressing the TR against the process roll PR with the cleaning cloth CC interposed therebetween. After the touch roll TR is retracted by the air cylinder AC, the touch roll TR is rotated to prepare for the next cleaning. A clean part of the cross CC was prepared.

[0007]

The above-mentioned conventional wiping apparatus requires two steps of cleaning and wiping. In addition, since alcohol is a volatile solution, the cleaning liquid is applied to the plate making roll with the cleaning liquid after cleaning. There is a possibility that drying unevenness may occur, and the nonwoven fabric is sent intermittently by one-way clutch method while operating the tension of the nonwoven fabric, so the nonwoven fabric can not be fed at a constant speed and a constant force is applied to always press the nonwoven fabric against the plate making roll There is a problem that wiping may be uneven because wiping cannot be performed.

In the conventional work surface cleaning device, the rotating cleaning roll CR moves while pressing.
By moving the waste member B impregnated with the cleaning liquid along the surface of the work W while in contact with the surface of the work W, the dirt on the surface of the work W is wiped and cleaned, and after the cleaning, the work W is moved downward. When the work W retreats downward, when the pressing state with the waste member is avoided when the work W retreats downward, part of the dirt wiped off by the waste member B is re-applied to the work W. There was a problem of sticking.

Further, the conventional roll cleaning device cleans the cleaning tape CT supplied from the supply roll KR by pressing the cleaning tape CT against the cleaning target roll WR to which the fine powder is attached by the touch roll TR. Since the cleaning tape CT is meanderingly moved in the width direction of the cleaning target roll WR, every time the cleaning tape CT changes its direction on the cleaning target roll WR, dirt wiped by the cleaning tape CT is removed. However, there is a problem that some of them re-attach to the cleaning target roll WR.

In the conventional roller cleaning device, the belt-like felt F is passed through the solvent tank Y to hold the solvent, and the roller W to be cleaned is backed up through the felt F via the guide roller GR. Press against roller BR,
Since the cleaning is performed on the roller W to be cleaned, the amount of the solvent held in the belt-like felt F varies depending on the feed speed of the belt-like felt F, and the dripping of the solvent and the felt There was a problem of adhesion of lint of F.

Further, the conventional automatic roll cleaner cleans the non-rotating touch roll TR with a cleaning cloth C.
Since the same portion of the cleaning cloth CC is pressed against the process roll PR with the intermediary of C to perform cleaning, the same portion of the cleaning cloth CC is used when the touch roll TR is retracted by the air cylinder AC. There is a problem that the dirt adhered to the process roll PR is re-adhered to the process roll PR.

Therefore, the present inventor provides a roll cleaning method in which a cleaning belt is pressed against a surface of a rotating roll to be cleaned by a backup roll to clean the surface of the roll to be cleaned. Focusing on the technical idea of the present invention that the cleaning belt is impregnated with an amount of the cleaning liquid in a range where the cleaning liquid does not drip from between the roll to be cleaned and the cleaning belt when pressed, and further research and development. As a result of the superposition, the present invention has been achieved which achieves the object of preventing dripping of the cleaning liquid from the cleaning belt and preventing re-adhesion of dirt to the roll to be cleaned.

[0013]

According to a first aspect of the present invention, there is provided a method of cleaning a roll, wherein a cleaning belt is pressed against the surface of a rotating roll to be cleaned by a backup roll. In the roll cleaning method of cleaning the surface of the roll, when the cleaning belt is pressed against the roll to be cleaned, the amount of cleaning liquid in a range in which the cleaning liquid does not drip from between the roll to be cleaned and the cleaning belt,
The cleaning belt is impregnated.

According to a second aspect of the present invention, there is provided a method for cleaning a roll according to the first aspect, wherein the cleaning belt impregnated with the cleaning liquid is rotated in a direction opposite to a rotation direction of the roll to be cleaned. It is supplied to.

According to a third aspect of the present invention, there is provided a method of cleaning a roll according to the second aspect, wherein the roll to be cleaned is pressed against the backup roll having a surface layer softer than the roll to be cleaned. In the state where the concave portion corresponding to the shape of the outer peripheral wall is formed, the roll to be cleaned is cleaned by the cleaning belt.

According to a fourth aspect of the present invention, there is provided a method of cleaning a roll according to the third aspect, wherein a part of the cleaning belt having a smaller width than the roll to be cleaned in the width direction is cleaned. The cleaning belt impregnated with the cleaning liquid is pressed against one end of the roll and relatively moved in the axial direction on the surface of the cleaning roll toward the other end to clean the roll.

[0017] In the method for cleaning a roll according to the present invention (fifth invention according to claim 5), in the fourth invention, the cleaning belt reaching the other end on the surface of the roll to be cleaned is formed by the cleaning belt. The roll to be cleaned is relatively moved in the axial direction on the surface of the roll to be cleaned until it is separated from the other end of the cleaning roll.

According to a sixth aspect of the present invention, in the method for cleaning a roll according to the fifth aspect, the cleaning belt is inserted between the roll to be cleaned and the backup roll. An end portion in a width direction of the nonwoven fabric is bent in a direction that does not directly contact the roll to be cleaned, and the roll to be cleaned is cleaned by a central portion in a width direction of the folded nonwoven fabric.

In the method for cleaning a roll according to the present invention (a seventh invention according to claim 7), in the sixth invention, the cleaning liquid in an amount in which the threads of the nonwoven fabric constituting the cleaning belt are not frayed is removed by the cleaning liquid. The belt is impregnated.

The method for cleaning a roll according to the present invention (an eighth invention according to an eighth aspect of the present invention) is the method according to the seventh invention, wherein the cleaning belt of the cleaning belt which is in contact with the roll to be cleaned is located upstream of a cleaning section. In the above, the cleaning liquid is impregnated on the cleaning belt, and the roll to be cleaned is cleaned by the cleaning belt impregnated with the cleaning liquid.

According to a ninth aspect of the present invention, there is provided a roll cleaning apparatus for cleaning a surface of a rotating roll to be cleaned, and the cleaning belt rotating the cleaning belt. A backup roll provided with an elastic layer on at least an outer peripheral surface thereof, which is elastically pressed against a surface of the roll and moved in a direction opposite to a rotation direction of the roll to be cleaned; and a cleaning roll when the cleaning belt is pressed against the roll to be cleaned. A cleaning liquid supply device for supplying the cleaning belt with a cleaning liquid in an amount within a range in which the cleaning liquid does not drip from between the roll and the cleaning belt and a range in which the threads of the nonwoven fabric forming the cleaning belt do not fray. It is.

[0022]

According to the first aspect of the present invention, there is provided a method for cleaning a roll according to the first aspect of the present invention, wherein the cleaning belt is pressed against the roll to be cleaned so that the belt does not hang from between the roll to be cleaned and the cleaning belt. Since the amount of the cleaning liquid is impregnated on the cleaning belt, the cleaning liquid is prevented from dripping from the cleaning belt.

According to the second aspect of the present invention, in the method for cleaning a roll according to the first aspect, the cleaning belt impregnated with the cleaning liquid is supplied in a direction opposite to a rotation direction of the roll to be cleaned. Since the clean portion of the cleaning belt always cleans the roll to be cleaned, it is possible to prevent the wiped dirt from re-adhering to the roll to be cleaned.

The method for cleaning a roll according to the third aspect of the present invention, which is configured as described above, is characterized in that, in the second aspect, the outer peripheral wall of the roll to be cleaned is pressed against the backup roll having a surface layer softer than the roll to be cleaned. In the state where the corresponding concave portion is formed, the cleaning belt is cleaned by the cleaning belt. Therefore, the cleaning roll is roughened at an upstream portion of the concave portion of the backup roll in the rotation direction of the cleaning roll. Wipe,
Since the finish wiping of the roll to be cleaned is performed in the downstream portion of the concave portion of the backup roll, the effect of improving the finish of the cleaning of the roll to be cleaned is achieved.

In the method for cleaning a roll according to a fourth aspect of the present invention, in the third aspect, a part of the width of the cleaning belt having a width smaller than that of the roll to be cleaned is pressed against one end of the roll to be cleaned. The cleaning belt impregnated with the cleaning liquid is relatively moved in the axial direction on the surface of the roll to be cleaned toward the other end to clean the roll to be cleaned. The entire surface is uniformly cleaned, and the dirt swabbed on the roll to be cleaned is reduced due to a decrease in the pressing force on the roll to be cleaned as in the case of retreating radially outward of the conventional roll. This has the effect of preventing re-adhesion.

According to a fifth aspect of the present invention, there is provided a method for cleaning a roll according to the fourth aspect, wherein the cleaning belt reaching the other end on the surface of the roll to be cleaned is connected to the other end of the roll to be cleaned. The roller to be cleaned is relatively moved in the axial direction on the surface of the roller to be cleaned until the roller to be cleaned is separated from the roller to be cleaned. This has the effect of preventing the wiped dirt from re-adhering to the roll to be cleaned due to a decrease in the pressing force on the roll.

The method for cleaning a roll according to a sixth aspect of the present invention is the method for cleaning a roll according to the fifth aspect, wherein the non-woven fabric constituting the cleaning belt inserted between the roll to be cleaned and the backup roll in the width direction. Part is bent in a direction that does not directly contact the roll to be cleaned, and the roll to be cleaned is cleaned by the central part in the width direction of the folded nonwoven fabric, so that the end in the width direction of the nonwoven fabric forming the cleaning belt And the surface of the roll to be cleaned is prevented from coming into contact with each other to prevent fraying of the thread from the end portion and reattachment of the frayed thread to the roll to be cleaned.

According to a seventh aspect of the present invention, in the method for cleaning a roll according to the sixth aspect, the cleaning belt is impregnated with a cleaning liquid in an amount that does not fray the non-woven fabric forming the cleaning belt. Therefore, since the non-woven fabric is impregnated with an appropriate cleaning liquid, it is possible to prevent the yarns of the non-woven fabric constituting the cleaning belt from fraying and preventing the frayed yarns from re-adhering to the roll to be cleaned.

The cleaning method of a roll according to an eighth aspect of the present invention, comprising the above-mentioned structure, is characterized in that, in the above-mentioned seventh aspect, the cleaning liquid is applied to a portion of the cleaning belt that is in contact with the roll to be cleaned and is upstream of a cleaning section. Since the roll to be cleaned is washed by the cleaning belt impregnated with the cleaning belt and impregnated with the cleaning liquid, the roll to be cleaned is cleaned while the impregnation state of the cleaning liquid in the cleaning belt does not change. The present invention has the effect of preventing the non-woven fabric constituting the cleaning belt from fraying and preventing the frayed yarn from re-adhering to the roll to be cleaned.

[0030] In the roll cleaning apparatus according to the ninth aspect of the present invention, when the cleaning belt is pressed against the roll to be cleaned by the cleaning liquid supply device, the cleaning liquid does not drop from between the roll to be cleaned and the cleaning belt. The cleaning belt is supplied with an amount of cleaning liquid in a range that does not cause the threads of the nonwoven fabric constituting the cleaning belt to be unraveled.
By the backup roll provided with an elastic layer at least on the outer peripheral surface to be moved in the direction opposite to the rotation direction of the roll to be cleaned, by elastically pressing against the surface of the rotating roll to be cleaned, Since the surface is washed, the washing liquid is prevented from dripping from the washing belt, and a clean portion of the washing belt always cleans the roll to be washed. An effect of preventing reattachment of the thread frayed from the cleaning belt is exerted.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention are described below.
This will be described with reference to the drawings.

(Embodiment) A roll cleaning apparatus according to the present embodiment comprises a cleaning belt 2 for cleaning the surface of a rotating roll 1 as shown in FIG.
And a backup roll provided with an elastic layer on at least the outer peripheral surface thereof, which is elastically brought into contact with the surface of the rotating roll to be washed, and the cleaning belt is supplied in a direction opposite to the rotating direction of the rotating roll to be washed. Cleaning belt supply mechanism 4
A pressing mechanism 5 for pressing the backup roll 3 against the surface of the roll 1 to be cleaned via the cleaning belt 2
When the cleaning belt 2 is pressed against the roll 1 to be cleaned, the cleaning liquid does not drip from between the roll 1 to be cleaned and the cleaning belt 2, and the thread of the nonwoven fabric forming the cleaning belt is frayed. And a cleaning liquid supply device 6 for supplying a cleaning liquid in an amount not in the range to the cleaning belt 2.

The moving mechanism 7 is constituted by a guide rail disposed in parallel with the roll 1 to be cleaned, and a part of the cleaning belt 2 is placed on one end surface of the roll 1 to be cleaned via the backup roll 3. While being pressed, the surface of the roll to be cleaned 1 is relatively moved in the axial direction toward the other end, and the surface of the roll to be cleaned 1 is axially moved until it is separated from the other end of the roll to be cleaned 1. It is relatively moved.

The apparatus for cleaning a roll according to the present embodiment having the above-described structure is characterized in that the cleaning liquid supply device 6 presses the cleaning belt 2 against the roll 1 to be cleaned. The cleaning liquid is supplied to the cleaning belt 2 in such an amount that the cleaning liquid does not drop from the non-woven fabric and that the threads of the nonwoven fabric forming the cleaning belt 2 do not fray.

The pressing mechanism 5 is moved in the direction opposite to the rotation direction of the roll 1 to be cleaned. The backup roll 3 provided with an elastic layer on at least the outer peripheral surface thereof moves the surface of the roll 1 to be cleaned. Press elastically.

Since the cleaning belt 2 is pressed against the surface of the roll 1 to be cleaned by the backup roll 3, the moving mechanism 7 of the cleaning belt 2 supplied with the cleaning liquid whose supply amount has been adjusted as described above. The movement causes the rotating roll 1 to be cleaned to be relatively moved in the axial direction from the surface of one end in the axial direction toward the other end, and the roll 1 to be cleaned is separated from the other end of the roll 1 to be cleaned. By moving the surface of the cleaning roll 1 relatively in the axial direction, the entire surface of the cleaning roll 1 in the axial direction is cleaned.

The roll cleaning apparatus according to the present embodiment having the above-described operation is provided between the cleaning belt 1 and the cleaning belt 2 when the cleaning belt 2 is pressed against the cleaning roller 1 by the cleaning liquid supply device 6. Since the cleaning liquid is supplied to the cleaning belt 2 within a range where the cleaning liquid does not drip, the dripping of the cleaning liquid from the cleaning belt 2 is prevented, and the re-adhesion of the wiped dirt to the roll 1 to be cleaned is prevented. This has the effect.

Further, since the roll cleaning apparatus of the present embodiment supplies the cleaning belt 2 with a cleaning liquid in an amount that does not cause the non-woven fabric thread forming the cleaning belt 2 to be unraveled, An effect of preventing adhesion of the thread frayed from the cleaning belt 2 is exerted.

Furthermore, the roll cleaning apparatus of the present embodiment
The backup roll 3 elastically presses the cleaning belt 2 against the surface of the rotating roll 1 to be cleaned and moves the cleaning belt 2 in a direction opposite to the rotation direction of the roll 1 to be cleaned, so that the cleaning belt 2 is constantly moved. Since the clean portion of the cleaning roller 1 cleans the roll 1 to be cleaned,
This has the effect of preventing re-adhesion of the wiped dirt to the surface.

[0040]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment) In the method and apparatus for cleaning a roll according to this embodiment, as shown in FIGS. 1 to 7, a backup belt 3 presses a cleaning belt 2 against the surface of a rotating roll 1 to be cleaned. In the roll cleaning method and apparatus for cleaning the surface of the roll to be cleaned 1, when the cleaning belt 2 is pressed against the roll to be cleaned 1 by the cleaning liquid supply device 6, the cleaning belt 2 is moved between the roll to be cleaned 1 and the cleaning belt 2. In a state where the cleaning liquid is supplied to the cleaning belt 2 and impregnated and applied to the cleaning belt 2 in an amount in a range where the cleaning liquid does not drip from between and a range where the thread of the nonwoven fabric forming the cleaning belt 2 is not frayed. The cleaning target roll 1 is cleaned.

As shown in FIG. 3, the roll cleaning apparatus of this embodiment includes a transfer hand 35 for gripping the roll 1 from the previous process, a transfer hand upper / lower portion 36 for lifting the gripped roll 1, and a lifted roll. A transfer hand advancing and retreating section 37 for transporting to the cleaning device, a conveyor motor 33 and a conveyor belt 3 for transporting the transferred roll 1 to each cleaning section.
4 and a journal cleaning hand section 38 for lifting the roll 1 from the conveyor to clean the roll journal section.
A brush 39 for cleaning the journal;
And a brush rotation motor 40 that rotates the brush.

The roll cleaning apparatus according to the present embodiment includes a roll presence / absence sensor 12 for confirming that the roll 1 is on the conveyor 34 in an area for cleaning the surface of the roll 1, and a cleaning for grasping the roll 1 from the conveyor 34. Hand part 14
And a hand upper and lower part 1 for lifting the roll 1 to a washing position.
5 and a rotation motor 13 for rotating the roll during washing.

Further, the roll cleaning apparatus of the present embodiment comprises a bencot supply section 18 for setting a bencot 17 as the cleaning belt 2, a cleaning liquid tank 32 for storing alcohol and other cleaning liquids, and a cleaning liquid tank 32 for the bencot. A cleaning liquid discharge unit 19 that stores the cleaning liquid and discharges the cleaning liquid in the above-described range is provided.

A backup roll 3 for receiving the cleaning liquid-stained bencot portion, a backup roll head portion 21 for pressing the bencot against the roll, and a traverse as a moving mechanism for traversing the pressed bencot on the surface of the roll 1 in the axial direction. The unit 11 includes a winding drive unit 22 as a cleaning belt supply mechanism that winds up the cleaned Bencott and a Bencott winding unit 23, and an exhaust duct 31 that exhausts the volatile cleaning liquid.

The bencot 17 as the cleaning belt impregnated with the cleaning liquid drives the backup roll 3 to rotate by the winding drive unit 22 and is supplied in a direction opposite to the rotation direction of the roll 1 to be cleaned. It is configured to:

The backup roll 3 comprises a cored bar 101
A surface layer softer than the roll to be cleaned 1 covered with a silicone rubber layer 100,
When pressed against the cleaning roll 1, the cleaning of the roll 1 is performed by a bencot 17 as the cleaning belt 2 in a state where a concave portion corresponding to the shape of the outer peripheral wall of the cleaning roll 1 is formed. I have.

As shown in FIGS. 4 and 7A to 7C, a part of the width of the cleaning belt 2 having a width smaller than that of the roll 1 to be cleaned is pressed against one end of the roll 1 to be cleaned. Cleaning belt 2 impregnated with the cleaning liquid
The roller to be cleaned 1 is relatively moved in the axial direction toward the other end on the surface of the roll to be cleaned, so that the roll to be cleaned 1 is cleaned, and the other end of the surface of the roll to be cleaned reaches the other end. The cleaning belt is configured to be relatively moved in the axial direction on the surface of the roll to be cleaned until the cleaning belt is separated from the other end of the roll to be cleaned so that the roll to be cleaned is cleaned.

The cleaning belt 2 inserted between the cleaning roll 1 and the backup roll 3 is shown in FIG.
As shown in (A), both ends in the width direction of the nonwoven fabric are bent in a direction that does not directly contact the roll 1 to be cleaned, and the roll to be cleaned is cleaned by the central portion in the width direction of the folded nonwoven fabric. 6B, the both ends in the width direction of the nonwoven fabric are bent in a direction that does not directly contact the roll 1 to be cleaned as shown in FIG. The roll to be cleaned is configured to be washed by a central portion in the width direction of the nonwoven fabric folded in half.

The backup roll 3 is constituted by an elastic roll having a small diameter relative to the roll 1 to be cleaned, and the roll 1 to be cleaned is cleaned by the wound cleaning belt 2. I have.

The cleaning liquid is supplied by impregnating the cleaning belt with the cleaning liquid and impregnating the cleaning belt with the cleaning liquid at a location upstream of the cleaning section of the cleaning belt that contacts the roll to be cleaned. The cleaning target roll is cleaned by a belt.

As shown in FIG. 3, the roll cleaning method and apparatus according to the present embodiment having the above-described configuration transports the contaminated roll 1 by the transfer hand 35 from the previous process and places it on the conveyor belt 34. The roll 1 is transported to the journal washing section by the conveyor drive motor 33.

The conveyed roll is chucked by the journal cleaning hand unit 38, rises to the position of the journal cleaning brush 39, and rotates the brush by the brush rotation motor 40 to clean the journal unit.

Roll 1 after journal cleaning
Is returned to the conveyor belt 34 again, and the roll 1 is moved by the conveyor drive motor 33 to the roll surface cleaning section.
When the roll presence sensor 12 detects a roll, the cleaning hand unit 14 chucks the roll 1,
The roll 1 is raised to the cleaning position by the cleaning hand upper and lower portions 15.

When the cleaning liquid is raised to the cleaning position, the roll 1 is rotated as shown in FIG. 1, and the cleaning liquid is dripped from the cleaning liquid discharge section 19 onto the bencot roll 17 wound around the backup roll 3, as shown in FIG. As described above, the backup roll head 21 is advanced by the cylinder to the rotating roll 1, and the bencot 17 of the backup roll to which the cleaning liquid has adhered is pressed against the roll 1.

The bencot 17 is pressed against the roll 1 and the bencot winding drive unit 22 feeds the bencot roll while moving the roll from the right end to the left end of the roll in the advancing direction of the conveyor by the traverse unit 11. The adhered bencot is traversed in one direction on the roll surface.

At this time, as shown in FIG. 5, the level of the cleaning liquid moves in the traverse direction and dries in order from the surface of the roll 1 after the cleaning, and the surface of the cleaning liquid has not been cleaned yet. The dirt is moved in the axial direction together with the cleaning liquid, and is wiped off, so that the surface of the base rubber roll that has been cleaned can be cleaned without being stained.

After the cleaning of the roll surface is completed, the roll 1 is returned on the conveyor belt by the upper and lower portions 15 of the cleaning hand, and is conveyed to the next process by the conveyor driving motor.

In this embodiment, in order to remove and improve the above-mentioned disadvantages of the prior art, alcohol is applied to the non-woven fabric forming the cleaning belt 2 by a dispenser before cleaning, and the roll 1 to be cleaned is cleaned. The nonwoven fabric is pressed against the roll 1 while rotating, the alcohol is oozed out of the surface of the roll 1 to float dust on the roll surface, and the nonwoven fabric is controlled while controlling the alcohol liquid level on the roll surface in the direction of the unwashed portion of the roll 1. While scanning the roll in the axial direction, the nonwoven fabric is continuously sent at a constant speed while maintaining a constant pressing force in the direction opposite to the roll rotation direction, and dust and wet on the roll surface are dried at the dry portion of the nonwoven fabric. By wiping, it is also possible to put together a roll cleaning method and apparatus that can be cleaned and spin-dried.

The method of cleaning a roll according to the present embodiment having the above-described structure is such that when the cleaning belt 2 is pressed against the roll to be cleaned 1, the cleaning belt 2 does not fall from between the roll to be cleaned 1 and the cleaning belt 2. Since the amount of the cleaning liquid is impregnated and applied to the cleaning belt 2, the cleaning liquid 2 is prevented from dripping from the cleaning belt 2.

That is, according to the experimental confirmation by the present inventor, if the amount of the cleaning liquid exceeds a range that does not drop from between the roll 1 to be cleaned and the cleaning belt 2, a liquid pool is generated, and thread waste is generated. And the foreign matter escapes and consequently reattaches to the roll to be cleaned 1 and remains. The dripping occurs on the surface of the roll to be cleaned 1 and the fat and oil components are concentrated and remain in that portion. Problems such as time required for air drying occur independently or simultaneously.

Further, in the method of cleaning a roll according to the present embodiment, the cleaning belt 2 impregnated with the cleaning liquid is supplied in a direction opposite to the rotation direction of the roll 1 to be cleaned, so that the cleaning belt 2 is always cleaned. Since such a portion cleans the roll 1 to be cleaned, it has an effect of preventing re-adhesion of the wiped dirt to the roll 1 to be cleaned.

Further, in the method of cleaning a roll according to the present embodiment, the roll 1 to be cleaned pressed against the backup roll 3 having a surface layer softer than the roll 1 to be cleaned.
In the state in which the concave portion corresponding to the shape of the outer peripheral wall is formed, the cleaning roll 1 is washed by the cleaning belt 2, so that the concave portion of the backup roll 3 in the rotation direction of the cleaning roll 1 is removed. Rough wiping is performed in the upstream portion to substantially remove solid debris adhering to the surface of the roll to be cleaned 1 of the roll to be cleaned, and the roll to be cleaned is cleaned in the downstream portion of the concave portion of the backup roll 3. 1. Dust and oil components firmly adhered to the surface of the roll 1 to be washed 1 (primers and the like)
Since the finish wiping for wiping while dissolving is performed, the effect of improving the finish of the cleaning of the roll 1 to be cleaned is achieved.

That is, the contact pressure between the cleaning belt 2 and the roll 1 to be cleaned can be increased with a small pressing pressure, and the cleaning power is high, so that the cleaning belt 2 adheres to the surface of the roll 1 to be cleaned in a film form. Suitable for removing fats and oils and cleaning soft rolls. On the other hand, if the pressing force against the roll 1 to be cleaned is too large, the strength of the nonwoven fabric, ie, Bencotton material, constituting the cleaning belt 2 is required, and the work surface is easily damaged. Is required.

The number of rotations of the roll 1 to be cleaned is 500 rpm.
m, traverse speed 1000 mm / min, supply amount of cleaning liquid 1.5 to 2 cc, feeding of the cleaning belt 2 30 mm
/ In this condition, the pressing amount (the length of the recess of the recess,
Hardness of 30 °), foreign matter remaining after wiping, presence / absence of oil and fat component (adhesive strength), presence / absence of trouble in transporting bencot, as shown in Table 1 below, the optimum pressure for removing the foreign matter remaining after wiping at a pressing amount of about 0.3 mm as shown in Table 1 I got it.

[Table 1]

In the method of cleaning a roll according to the present embodiment, a part of the width of the cleaning belt 2 having a width smaller than that of the roll 1 to be cleaned is pressed against one end of the roll 1 to be impregnated with the cleaning liquid. The cleaning belt 1 is cleaned by moving the cleaning belt 2 relatively in the axial direction toward the other end of the surface of the roll 1 to be cleaned, so that the entire surface in the axial direction of the roll 1 to be cleaned is cleaned. Of the dirt wiped on the roll to be cleaned 1 due to a decrease in the pressing force against the roll to be cleaned 1 as in the case where the conventional roll is retracted radially outward. This has the effect of preventing re-adhesion.

That is, in the axial movement of the cleaning belt 2 with respect to the roll 1 to be cleaned, a rough wiping is performed on the upstream portion (the first half in contact with the roll 1 to be cleaned first), and the downstream portion ( Since the finish wiping is performed in the rear half (which comes into contact with the roll 1 to be cleaned later), it is possible to uniformly perform rough wiping and finish wiping in the entire axial direction of the roll 1 to be cleaned.

Further, in the method of cleaning a roll according to the present embodiment, the cleaning belt 2 reaches the other end on the surface of the roll 1 to be cleaned until the cleaning belt 2 separates from the other end of the roll 1 to be cleaned. Since the roll to be cleaned 1 is moved relative to the surface of the roll 1 in the axial direction to be cleaned, the roll to be cleaned is removed as in the case of retracting radially outward of the roll in the above-described conventional method and apparatus. The effect of preventing the wiped dirt from re-adhering to the roll 1 to be cleaned due to the decrease in the pressing force against the cleaning roll 1 is exhibited.

Further, in the method of cleaning a roll according to the present embodiment, both ends in the width direction of the nonwoven fabric forming the cleaning belt 2 interposed between the roll 1 to be cleaned and the backup roll 3 are cleaned. Since the roll to be cleaned 1 is cleaned by the central portion in the width direction of the folded nonwoven fabric in a direction that does not directly contact the roll 1, the widthwise end portion of the nonwoven fabric forming the cleaning belt 2 and the cover are cleaned. This has the effect of avoiding contact with the surface of the cleaning roll 1 and preventing fraying of the thread from the end and adhesion of the frayed thread to the roll 1 to be cleaned.

Further, in the method of cleaning a roll according to the present embodiment, the cleaning belt 2 is impregnated with a cleaning liquid in an amount that does not cause the threads of the nonwoven fabric constituting the cleaning belt 2 to be unraveled. Since the cleaning liquid is impregnated, there is an effect that the yarn of the nonwoven fabric constituting the cleaning belt 2 is prevented from fraying and the frayed yarn is prevented from adhering to the roll to be cleaned.

That is, according to the experimental confirmation by the present inventor, if the cleaning liquid is less than the amount of the non-woven fabric constituting the cleaning belt 2 that does not fray, the resistance of the non-woven fabric increases and fraying occurs. Generation of lint, generation of static electricity,
There is a problem that the fat component cannot be completely dissolved.

In the method of cleaning a roll according to the present embodiment, the roll 1 to be cleaned is cleaned by the cleaning belt 2 wound around the backup roll 3 having a smaller diameter than the roll 1 to be cleaned. The effect of reducing the area of the recess formed by pressing the backup roll 3 with the roll to be cleaned 1 to increase the surface pressure and enabling the cleaning of the roll to be cleaned 1 to be surely achieved.

Further, in the method of cleaning a roll according to the present embodiment, the cleaning belt 2 for cleaning by contacting the roll 1 to be cleaned is provided.
The cleaning liquid is impregnated and applied to the cleaning belt 2 at a portion upstream of the cleaning section, and the cleaning target roll 1 is cleaned by the cleaning belt 2 in which the cleaning liquid uniformly penetrates. In order to wash the roll 1 to be washed while the impregnation state of the washing liquid in the above does not change and unevenness does not occur, the non-woven fabric thread forming the washing belt 2 is frayed and the frayed thread is transferred to the roll 1 to be washed. This has the effect of preventing re-adhesion.

The above-described embodiments and examples have been described by way of example, and the present invention is not limited thereto. The present invention is not limited to the claims, the detailed description of the invention, and the drawings. Modifications and additions are possible without departing from the technical idea of the present invention that can be recognized by those skilled in the art.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of a method and an apparatus for cleaning a roll according to embodiments and examples of the present invention.

FIG. 2 is a side view and a front view showing a roll to be cleaned in an embodiment of the present invention.

FIG. 3 is a side view showing the overall outline of the roll cleaning apparatus of the present embodiment.

FIG. 4 is a plan view showing a moving relationship between the cleaning belt and a roll to be cleaned in the present embodiment.

FIG. 5 is a plan view for explaining a change in a cleaning liquid level in the roll to be cleaned of the present embodiment.

FIG. 6 is a perspective view for explaining how to fold a nonwoven fabric forming the cleaning belt in the present embodiment.

FIG. 7 is a plan view showing a contact state and a moving relationship between the cleaning belt and a roll to be cleaned in the embodiment.

FIG. 8 is a side view showing a conventional work surface cleaning device.

FIG. 9 is a perspective view showing a conventional roll cleaning device.

FIG. 10 is a sectional view showing a conventional roller washer.

FIG. 11 is a side view showing a conventional automatic roll cleaner.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 roll to be cleaned 2 cleaning belt 3 backup roll 4 cleaning belt supply mechanism 5 pressing mechanism 6 cleaning liquid supply device

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuhiro Mimura 1900, Ifuna-cho, Suzuka-shi, Mie Prefecture Inside Suzuka Fuji Xerox Co., Ltd. F term (reference) 3B116 AA41 AB53 BA08 BA22 BA34 BB01 3J103 AA02 AA13 AA21 BA31 FA02 GA02 GA52 HA04 HA12 HA53

Claims (9)

[Claims] 1. A roll cleaning method for cleaning a surface of a roll to be cleaned by pressing the cleaning belt against a surface of the roll to be cleaned by a backup roll, wherein the cleaning belt is pressed against the roll to be cleaned. A method of cleaning a roll, wherein the cleaning belt is impregnated with an amount of cleaning liquid in a range that does not allow the cleaning liquid to drip from between the roll to be cleaned and the cleaning belt. 2. The method for cleaning a roll according to claim 1, wherein the cleaning belt impregnated with the cleaning liquid is supplied in a direction opposite to a rotation direction of the roll to be cleaned. 3. The cleaning belt according to claim 2, wherein a concave portion corresponding to a shape of an outer peripheral wall of the roll to be cleaned is pressed against the backup roll having a surface layer softer than the roll to be cleaned. Cleaning the roll to be cleaned. 4. The cleaning belt according to claim 3, wherein a part of the width of the cleaning belt having a width smaller than that of the cleaning roller is pressed against one end of the cleaning roller to clean the cleaning belt impregnated with the cleaning liquid. A method for cleaning a roll, wherein the roll to be cleaned is cleaned by being relatively moved in the axial direction on the surface of the roll toward the other end. 5. The cleaning belt according to claim 4, wherein the cleaning belt that has reached the other end on the surface of the roll to be cleaned is axially moved on the surface of the roll to be cleaned until it is separated from the other end of the roll to be cleaned. Cleaning the roll to be cleaned by relatively moving the roll to be cleaned. 6. The cleaning non-woven fabric according to claim 5, wherein an end portion in a width direction of the nonwoven fabric forming the cleaning belt inserted between the roll to be cleaned and the backup roll is oriented in a direction that does not directly contact the roll to be cleaned. A method of cleaning a roll, wherein the roll to be cleaned is cleaned by a central portion in a width direction of the folded nonwoven fabric. 7. The method for cleaning a roll according to claim 6, wherein the cleaning belt is impregnated with a cleaning liquid in an amount that does not cause the threads of the nonwoven fabric forming the cleaning belt to fray. 8. The cleaning belt according to claim 7, wherein the cleaning belt is impregnated with the cleaning liquid at a position upstream of a cleaning section of the cleaning belt that contacts the roll to be cleaned and is cleaned. The method for cleaning a roll, wherein the roll to be cleaned is cleaned by the cleaning belt. 9. A cleaning belt for cleaning the surface of a rotating roll to be cleaned, and a cleaning belt elastically pressed against the surface of the rotating roll to be cleaned, the rotating direction being opposite to the rotation direction of the cleaning roll. A backup roll having an elastic layer on at least the outer peripheral surface to be moved in the direction, a range in which the cleaning liquid does not drip from between the roll to be cleaned and the cleaning belt when the cleaning belt is pressed against the roll to be cleaned, A cleaning device for a roll, comprising: a cleaning liquid supply device that supplies a cleaning liquid to the cleaning belt in an amount that does not cause the threads of the nonwoven fabric forming the cleaning belt to be unraveled.