JP2904480B2 - Cylinder cleaning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder cleaning apparatus for cleaning a cylinder surface such as a blanket cylinder, an impression cylinder and an ink roller of an offset printing machine with a cleaning cloth. In this state, the cleaning cloth is sent out, and when the diameter of the cleaning cloth roll is reduced, the cylinder cleaning apparatus is configured to prevent the winding core (core) from jumping out and deforming with the feeding of the cleaning cloth. About.

[0002]

2. Description of the Related Art Conventionally, in a cylinder cleaning device for cleaning a cylinder surface such as a blanket cylinder of an offset printing machine with a cleaning cloth, the cleaning cloth is used for a cleaning cloth roll wound on a hollow cardboard core. In general, a metal shaft made of iron or the like is inserted in advance, and the metal shaft is attached to a cleaning unit as a rotation axis. As a more improved system, there is also a system that does not use such a metal shaft and directly holds the cardboard core and uses it as a rotation axis.
For example, it has been proposed in Japanese Patent Application Laid-Open No. 4-24659. However, when the shaft is not used, when the remaining amount of the cleaning cloth is reduced, the rigidity of the cleaning cloth roll is reduced, and the central portion is bowed by the pulling force of the cleaning cloth winding means, so that the normal cleaning cloth supply is not performed, and the roll is not rotated. There was a risk that the printer would fly out and destroy the printing press. By the way, different types of cleaning devices cannot be used with any type of cleaning cloth roll because the outer diameter of the metal shaft that fits the type differs and the size of the holder that directly holds the cardboard core differs. Was. In addition, it is troublesome to insert a cleaning cloth roll, such as inserting a heavy rigid shaft into the core, firmly fixing the shaft and the core with a fixture, and attaching the core to the cleaning device with the fixture. Also,
An efficient and resource-saving cleaning cloth roll in which the thickness of the cardboard core, that is, the core portion is extremely reduced and the cleaning cloth is wound more has been proposed, but a cardboard core having a small diameter has to be used. Since it cannot be obtained, the conventional mounting method has a problem in strength, and a countermeasure has been desired. It is an object of the present invention to improve the space efficiency (space factor) of the cleaning cloth roll by making the core portion extremely thin, and to stabilize the mounting state of the cleaning cloth roll to reliably send out the cleaning cloth. It is an object of the present invention to provide a cylinder cleaning device capable of performing the above-mentioned operations. It is another object of the present invention to provide a cylinder cleaning device that stabilizes the mounting state of a cleaning cloth roll and prevents the core from flying out and deforming.

[0003]

According to a first aspect of the present invention, a cleaning cloth supplied from a cleaning cloth roll having a core is pressed against the outer periphery of a cylinder to clean the outer peripheral surface of the cylinder. A cylinder cleaning device, which is provided between two side plates, for supporting the outer periphery of the cleaning cloth roll directly on the cross beam member, and holding the cleaning cloth roll for applying a force to the outer circumference of the cleaning cloth roll. And means,
The cleaning cloth roll holding means is provided with a mechanism for applying a force to the outer periphery of the cleaning cloth roll on the arm supported at one end, and formed a passage for feeding the cleaning cloth between the bar attached to the arm and the cross beam member. In the configuration. According to the configuration of the first aspect, the cleaning cloth roll is placed on the cross beam member in a stable state, so that the cleaning cloth can be sent out from the passage without being biased, and the cleaning cloth can be reduced by narrowing the width of the passage. When a strong delivery force is applied to the cleaning cloth roll, the cleaning cloth roll can be prevented from dropping from the cross beam member.

According to a second aspect of the present invention, in the first aspect of the present invention, the cleaning cloth roll holding means is provided on the arm, and a second bar contacting the outer periphery of the cleaning cloth roll and a bar attached to the arm. A connecting member provided and movable toward the cleaning cloth roll; and an outer periphery of the cleaning cloth roll provided on the connecting member and disposed between a bar attached to the arm and a second bar. Consists of a third bar. According to the configuration of the second aspect, a force is applied to the outer periphery of the cleaning cloth roll by the second bar and the third bar, so that the cleaning cloth roll is stably mounted even when the diameter changes due to the delivery of the cleaning cloth. State can be maintained. In particular, the diameter of the cleaning cloth roll becomes small and becomes unstable when approaching the diameter of the core, but the third bar prevents the cleaning cloth roll from moving in the path direction. Smooth and reliable transmission is performed, and reliability is improved.

[0005] The invention of claim 3 is based on claim 1 or 2
In the invention, the arm support portion is disposed at a position near the end of the extending portion of the cross beam member on which the cleaning cloth roll is placed, and a bar attached to the arm is provided on the side of the cross beam member with respect to the arm support portion. In this configuration, the distance between the passages for delivering the cleaning cloth formed between the cross beam member and the bar mounted on the arm is changed according to the change in the diameter of the cleaning cloth roll. According to the third aspect of the present invention, the second bar is moved out of the way for placing the cleaning cloth roll on the cross beam member, but the operation widens the passage, so that the cleaning cloth can be easily passed through the passage. The operability of changing the cleaning cloth roll is good, and the work efficiency is improved. According to a fourth aspect of the present invention, in the third aspect of the present invention, the interval between the passages for delivering the cleaning cloth formed between the cross beam member and the bar attached to the arm is smaller than the diameter of the core of the cleaning cloth roll. It is in. According to the configuration of the fourth aspect, a large force exceeding the normal cleaning cloth delivery force acts on the cleaning cloth roll having a small diameter, and when the cleaning cloth roll is pulled out, the cleaning cloth roll and the arm are moved. , And is locked by being sandwiched between the bar and the bar attached thereto, so that the cleaning cloth is not delivered. In extreme cases, the bar and arm attached to the arm are destroyed and fly to the cylinder, damaging the cylinder.However, by keeping the distance between the passages smaller than the winding core, the cleaning cloth roll does not lock, so that it does not occur. The above-described accident can be prevented.

According to a fifth aspect of the present invention, in the third aspect of the present invention, the distance between the cleaning cloth delivery passage formed between the cross beam member and the bar attached to the arm is determined by the diameter of the core of the cleaning cloth roll. It is configured to be small and a second bar is interposed between the passage and the cleaning cloth roll. According to the configuration of the fifth aspect, the cleaning cloth roll having a reduced diameter is held by the third bar, whereby the bending of the cleaning cloth roll can be prevented. For this reason, it is possible to prevent the cleaning cloth roll from bending and the cleaning cloth not being able to be smoothly delivered, or the cloth end detection from being inaccurate.

A sixth aspect of the present invention is a cylinder cleaning apparatus for cleaning the outer peripheral surface of a cylinder by pressing a cleaning cloth supplied from a cleaning cloth roll having a core to the outer peripheral surface of the cylinder. And a cleaning cloth roll holding means for applying a force to the outer circumference of the cleaning cloth roll. The cleaning cloth roll holding means rotates the cleaning cloth roll holding means. A freely provided arm is provided with a mechanism for applying a force to the outer periphery of the cleaning cloth roll, a bar is attached to the arm, and a passage for feeding the cleaning cloth between the bar and the cross beam member is formed. A second bar is disposed on the distal end side and a third bar is disposed on the support portion side of the arm, and the third bar is mounted on a connecting member rotatably provided on the bar mounted on the arm and a bar mounted on the arm. In the configuration which is arranged between the second bar. According to the configuration of claim 6, the effects of the invention of claims 1 and 2 can be expected, and the second bar and the third bar are made of a material that is rotatable or has a small frictional resistance to the cleaning cloth. As a result, the friction between the cleaning cloth roll and the outer peripheral surface thereof can be reduced, so that the cleaning liquid squeezing prevention effect can be expected even when the present invention is applied to a cleaning cloth roll made of a cleaning cloth impregnated with a cleaning liquid in advance. . In addition, since a force is applied to the outer periphery of the cleaning cloth roll by two bars having different movement trajectories, the mounting state can be constantly maintained in the process of decreasing the diameter of the cleaning cloth roll, and the end of the cleaning cloth can be maintained. Transmission is performed smoothly.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the core of the cleaning cloth roll is positioned inside the rotation locus of the second bar and outside the rotation locus of the third bar. The configuration is as described above. According to the configuration of claim 7, the second bar and the third bar follow the change in the diameter of the cleaning cloth roll, and
More stable holding can be achieved by the cooperation of the two bars.

An eighth aspect of the present invention is the configuration according to any one of the first to seventh aspects, further comprising means for detecting a cleaning cloth end of the cleaning cloth roll. According to the configuration of claim 8, by detecting the end of the cleaning cloth and notifying the replacement timing of the cleaning cloth roll, the cleaning cloth is pressed against the cylinder surface by the expanding member, and during the cleaning, the state where there is no cleaning cloth is generated. It is possible to prevent an accident in which the expansion member is directly pressed against the cylinder surface and damages the expansion member.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, a cleaning cloth roll having a tubular core or a rod-shaped core is applied. Further, the cleaning cloth is formed of ordinary cloth, non-woven fabric, paper, plastic film, and those obtained by treating them, or the like. Examples of the treated cleaning cloth include a cloth impregnated with a liquid in advance, and a cloth coated with a jelly-like or paste-like cleaning agent.

FIG. 1 is a sectional view showing the basic structure of a cylinder cleaning device according to the present invention. FIG. 1A shows a state where a new cleaning cloth roll is set. FIG. 1B shows a state in which the cleaning cloth of the cleaning cloth roll is near the end. In the cylinder cleaning device 1, a belt-shaped cleaning cloth 2 that moves relatively to an outer peripheral surface of a cylinder to be cleaned (hereinafter, referred to as a cylinder) such as a blanket cylinder (not shown) is delivered from a cleaning cloth roll 3, and a cloth winding roll. 4 The cloth take-up roll 4 is intermittently rotated in one direction by a cloth feed cylinder 5 via a gear and a one-way clutch (not shown) to take up the cleaning cloth 2. On the side facing the cylinder, an inflating member 6 that engages with the back side of the cleaning cloth 2 and a backup bar 7 as its holder are provided.
The backup bar 7 is attached to a support bar 9 as a cross beam member that connects and holds side plates 8 that form both sides of the cleaning device 1.

The inflatable member 6 is made of an elastic material such as rubber and has a substantially U-shaped cross section. Both ends of the inflatable member 6 parallel to the axial direction are fixed to both end surfaces of the backup bar 7 by clamp bars 10. ing. An air passage 11 is formed in the backup bar 7 in the longitudinal direction, and the air passage 11 is opened between the backup bar 7 and the expansion member 6 at a plurality of locations. The support bar 9 is formed of a member having an L-shaped cross section, and the inside thereof is formed with a predetermined curved surface. A lower portion of the support bar 9 is provided with an extension portion 9a extending to the opposite side to the expansion member 6 and forming a part of an L-shaped member, and the upper surface of the extension portion 9a places the cleaning cloth roll 3 thereon. Therefore, the mounting surface is formed including the curved surface.

The cleaning cloth roll 3 is pressed between the support bar 9 and the cloth take-up roll 4 against the inside of the support bar 9, that is, on the mounting surface, and is stabilized. Alternatively, a cleaning cloth roll holding mechanism 12 for preventing deformation of the core 3a is provided. In the cleaning cloth roll holding mechanism 12, a cross arm 14 is swingably attached to a cross arm support pin 13 attached to both side plates 8. Each cross arm 14 is located outside the end face of the cleaning cloth roll 3 and is urged to rotate in the direction of the arrow shown in FIG. A rotary bar 15 is provided at the tip of the cross arm 14 to contact the outer periphery of the cleaning cloth roll 3 with a predetermined pressing force. A fixed bar 16 is provided on the cross arm 14 at a position close to the cross arm support pin 13 and biased toward the support bar 9 side. An intermediate roller connecting plate 17 is rotatably attached to the fixed bar 16. I have. An intermediate roller 18 is rotatably provided at a free end of the intermediate roller connecting plate 17, and is urged in the same direction as the cross arm 14 by a spring 26. That is, the intermediate roller 18 is disposed between the rotating bar 15 and the fixed bar 16, and the interval between the rotating bar 15 is slightly larger than at least the diameter of the core 3 a of the cleaning cloth roll 3.

Further, the cleaning cloth roll holding mechanism 12 will be described in more detail with reference to FIGS. FIG. 2 is a developed front view showing the configuration of the left side plate side of the cleaning cloth roll holding mechanism viewed from the cloth take-up roll 4 in FIG. Similarly, FIG. 3 is a front view showing the configuration on the right side plate side. In FIG. 2, a cross arm support pin 13 is passed through a hole provided in a base 14 a of the cross arm 14, and a screw formed at the tip of the cross arm support pin 13 is screwed into a screw hole of the side plate 8. The cross arm 14 rotates about the cross arm support pin 13. Head of cross arm support pin 13 and base 14a of cross arm 14
Between them, a coil-shaped spring 19 is provided, one end of which is fixed to the base 14a of the cross arm 14 and the other end of which is locked to a pin 25 fixed to the side plate 8. The spring 19 acts so as to press the cleaning arm 3 against the inner surface of the support bar 9 by pressing the cross arm 14 in the direction of the arrow shown in FIG.

In FIG. 3, a shaft 20 is rotatably supported on the left side plate 8, and a cross arm 14 is rotatably provided on one side of the shaft 20 on the side plate 8 side. A base of a sensing plate 21 for detecting the end of the cleaning cloth is fixed at a distance from the cross arm 14. The sensing plate 21 is fixed to the shaft 20 so as to be located between the rotating bar 15 and the fixed bar 16.
The distal end side of the sensing plate 21 is bent in the direction of the cleaning cloth roll 3 as shown in FIG. Cross arm 14 and sensing plate 21
A spring 22 whose one end is locked to the base of the sensing plate 21 and the other end of which is locked to the base of the cross arm is interposed between the base 22 and the base 22.
1 is urged in a direction to contact the outer periphery of the cleaning cloth roll 3. The movement of the cross arm 14 following the diameter of the cleaning cloth roll 3 reduced by the supply of the cleaning cloth from the cleaning cloth roll 3 is transmitted to the sensing plate 21 via the spring 22 and rotated in the same direction as the cross arm 14. The shaft 20 is rotated by the rotation of the sensing plate 21, and when the shaft rotates by a predetermined angle, the switch 23 operates to detect the end of the cleaning cloth.

Both ends are screwed to both cross arms 14.
An intermediate roller connecting plate 17 is rotatably attached to the fixed bar 16 at a predetermined distance. The intermediate roller connecting plate 17 on the right side plate 8 side is located inside the sensing plate 21 to avoid interference with the sensing plate 21. As shown in FIG. 5, an intermediate roller block 17a is screwed to the free end of the intermediate roller connecting plate 17, and an intermediate roller 18 is rotatably supported by the intermediate roller block 17a. A spring 26 is wound around the fixed bar 16, and one end of the spring 26 is fixed to the fixed bar 16.
The other end is locked to the intermediate roller connecting plate 17, respectively. The spring 26 acts to rotate the intermediate roller connecting plate 17 toward the cleaning cloth roll 3, and when the cleaning cloth roll 3 becomes small in diameter, the intermediate roller 18 is interposed in front of the cleaning cloth delivery direction. That is, as shown in FIG. 1 (b), when the rotating bar is in contact with the mounting surface of the support bar, the intermediate roller is positioned in the cleaning cloth delivery direction of the cleaning cloth roll 3, and The rollers are almost parallel on the mounting surface.

By locating the intermediate roller 18 in this way, the intermediate roller 18 can receive the force to bend the small-diameter cleaning cloth roll 3 and prevent deformation of the winding core 3a, and at the same time, the cleaning can be performed. The cloth roll can be suppressed from moving to the end side of the support bar. That is, the cleaning cloth roll is stably held up to the cleaning cloth end, and smooth delivery is ensured. Further, by pressing the bend of the cleaning cloth roll, the sensing plate correctly contacts the cleaning cloth roll, and accurate cloth end detection can be performed. Further, by forming the intermediate roller connecting plate 17 with a wide plate material, the twist of the intermediate roller 18 is eliminated, and the movement of the intermediate roller 18 is ensured and smooth, and the whole of the intermediate roller 18 is stably formed on the cleaning cloth roll. Can be contacted.

When the cleaning cloth roll 3 is placed on the support bar 9, the cross arm 14 is rotated in the direction of the arrow shown in FIG. 6, and the distance between the rotating bar 15 and the upper part of the support bar 9 is adjusted. After making it wider than the diameter, the cleaning cloth roll 3 is dropped onto the mounting surface of the support bar 9 from above. In the mounting operation of the cleaning cloth roll 3, the rotation a of the cross arm 14 increases the distance a between the distal end 9 a of the support bar 9 and the fixed bar 16, so that the distal end of the cleaning cloth 2 is moved from the end 9 a of the support bar 9. It is easy to get out and the mounting of the cleaning cloth becomes easy. After the cleaning cloth roll 3 is placed on the support surface of the support bar 9, the force holding down the cross arm 14 is loosened, so that the cross arm 14 is rotated in the direction of the support bar 9 by the spring force, and the rotating bar 15 is rotated. To hold the cleaning cloth roll 3 on the mounting surface of the support bar 9 (FIG. 7). At this time, the cross arm 14 has a length such that the rotation locus of the rotary bar 15 passes outside the winding core 3a of the cleaning cloth roll 3. Thereby, in the process of gradually reducing the roll diameter of the cleaning cloth roll 3, for example, as shown in FIG.
5 and the intermediate roller 18 can always contact the outer peripheral surface of the cleaning cloth roll 3.

FIG. 8 shows the operation state of the cleaning cloth roll holding mechanism 12 when the cleaning cloth of the cleaning cloth roll approaches the end. The diameter of the cleaning cloth roll 3 is equal to the rotation bar 15 and the intermediate roller 18.
Is smaller than the interval, the cleaning cloth roll 3 is positioned between the rotary bar 15 and the intermediate roller 18 as shown in the figure. At this time, the end of the cleaning cloth is detected based on the rotational position of the sensing plate 21. When the cross arm 14 rotates as the diameter of the cleaning cloth roll 3 gradually decreases, the distance b between the end 9a of the support bar 9 and the fixed bar 16 becomes narrower, and the distance becomes the narrowest in the state shown in FIG. . Interval b is cleaning cloth roll 3
Is smaller than the diameter of the core 3a, a strong pulling force acts on the cleaning cloth 2, and the core 3a is
End 9a and fixing bar 1 even if pulled out from the mounting surface of
6 and is prevented from jumping out. The width of the passage 30 between the end of the support bar and the fixed bar is smaller than the diameter of the core, that is, narrow, so that a small-diameter cleaning cloth roll does not jump out of the passage without an intermediate roller. Can be.

FIG. 10 shows a modification of the rotating bar and the fixed bar. In this embodiment, the rotating bar 15 and the fixed bar 16 are formed shorter than the width of the cleaning cloth roll, and are provided independently of each other on the arm supported by the side plate 8. Each bar has a cross arm 1 with a cantilever or a two-sided structure.
4 attached. In the cylinder cleaning device thus configured, by introducing air between the backup bar 7 and the expansion member 6 through the air passage 11,
The state changes from the contracted state 6a indicated by the two-dot chain line to the expanded state indicated by the solid line in FIG. The cleaning cloth 2 is pressed against the outer periphery of the cylinder by the expanded member. The relative movement between the rotation of the cylinder and the movement of the cleaning cloth 2 cleans the surface of the cylinder. The cleaning cloth 2 is sent out from the cleaning cloth roll 3 between the end 9a of the support bar 9 and the fixed bar 16 of the cleaning cloth roll holding mechanism, and is supplied to the expansion member under the support bar 9. When the cleaning is completed, the air is discharged to contract the expansion member 6, and the cleaning cloth 2 is separated from the surface of the cylinder. The cleaning cloth can be pressed against or released from the cylinder by a mechanism for moving the entire cleaning device forward or backward with respect to the cylinder.

In the present embodiment, the second bar and the third bar are described as rotatable rotatable bars and intermediate rollers, but may be configured as non-rotating bars. In particular, when using a cleaning cloth impregnated with a cleaning liquid in advance, if the bar is not rotating, the cleaning liquid is squeezed out due to friction, and a sufficient cleaning effect cannot be obtained. By using a flexible bar, the friction with the cleaning cloth can be extremely reduced, which is effective in preventing the cleaning liquid from being squeezed out. As another countermeasure, a non-rotating bar can be configured by using a member having a small frictional resistance to the cleaning cloth. Also, although the description has been made with one intermediate roller, the intermediate roller may be a divided intermediate roller. Furthermore, although the structure in which the arm is rotatably supported on the shaft has been described, the arm is formed of an elastic member, and the arm member is bent around the support portion by following a change in the diameter of the cleaning cloth roll. It is also possible.

[Brief description of the drawings]

1A and 1B show a basic configuration of a cylinder cleaning device of the present invention. FIG. 1A shows a state in which a new cleaning cloth roll is set, and FIG. 1B shows a state in which the cleaning cloth of the cleaning cloth roll is near the end. It is sectional drawing of a state.

FIG. 2 is a developed front view showing the configuration of the left side plate side of the cleaning cloth roll holding mechanism viewed from the cloth take-up roll side in FIG. 1;

FIG. 3 is a front view showing a configuration on a right side plate side.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a sectional view taken along line BB of FIG. 3;

FIG. 6 is an explanatory diagram of mounting of a cleaning cloth roll.

FIG. 7 is an explanatory view of a state in which the mounting of the cleaning cloth roll is completed.

FIG. 8 is an explanatory diagram when the diameter of the cleaning cloth roll changes.

FIG. 9 is an explanatory diagram when the diameter of the cleaning cloth roll is reduced.

FIG. 10 is a perspective view showing a modified example of the rotating bar and the fixed bar, and is a right side plate side.

[Description of Signs] 1 ... Cylinder washing device, 2 ... Cleaning cloth, 3 ... Cleaning cloth roll, 4 ... Clothing take-up roll, 5 ... Cylinder for taking up cloth, 6
... expansion member, 8 ... side plate, 9 ... support bar,
9a: End of support bar, 12: Cleaning cloth roll holding mechanism, 14: Arm, 15: Rotating bar, 16: Fixed bar,
Reference numeral 17: intermediate roller connecting member, 18: intermediate roller, 21: sensing plate, 23: cloth end detecting switch, 30: passage

Claims (8)

(57) [Claims] 1. A cylinder cleaning device for cleaning a cylinder outer peripheral surface by pressing a cleaning cloth supplied from a cleaning cloth roll having a winding core onto an outer periphery of a cylinder, comprising: And a cleaning cloth roll holding means for applying a force to the outer circumference of the cleaning cloth roll, wherein the cleaning cloth roll holding means has an arm supported at one end. And a mechanism for applying a force to the outer periphery of the cleaning cloth roll, and a passage for discharging the cleaning cloth is formed between a bar attached to the arm and the cross beam member. 2. The cleaning cloth roll holding means is provided on an arm, and is provided on a second bar contacting an outer periphery of the cleaning cloth roll and a bar attached to the arm, and is movable toward the cleaning cloth roll. And a third bar provided on the connecting member, disposed between the bar attached to the arm and the second bar, and brought into contact with the outer periphery of the cleaning cloth roll. The cylinder cleaning device according to claim 1, wherein: 3. A support portion of the arm is disposed at a position near an end of an extension of a cross beam member on which a cleaning cloth roll is placed, and a bar attached to the arm is provided with respect to the support portion of the arm. The method is characterized in that the cleaning cloth roll is biased toward the cross beam member side, and the interval of the cleaning cloth delivery passage formed between the cross beam member and the bar mounted on the arm is changed according to a change in the diameter of the cleaning cloth roll. Item 3. A cylinder cleaning device according to item 1 or 2. 4. The cleaning cloth feeding passage formed between the cross beam member and a bar attached to an arm has a smaller interval than a diameter of a core of a cleaning cloth roll. 3. The cylinder cleaning device according to 3. 5. The cleaning cloth feeding passage formed between the cross beam member and the bar attached to the arm has a distance smaller than a diameter of a core of the cleaning cloth roll, and is provided between the passage and the cleaning cloth roll. The cylinder cleaning device according to claim 4, wherein a second bar is interposed. 6. A cylinder cleaning device for cleaning a cylinder outer peripheral surface by pressing a cleaning cloth supplied from a cleaning cloth roll having a core to a cylinder outer peripheral surface, wherein the cleaning cloth is passed between both side plates. And a cleaning cloth roll holding means for applying a force to the outer circumference of the cleaning cloth roll. The cleaning cloth roll holding means is provided rotatably. The arm is provided with a mechanism for applying a force to the outer periphery of the cleaning cloth roll, a bar is attached to the arm, a passage for feeding the cleaning cloth between the bar and the cross beam member is formed, and a tip of the arm is provided. A second bar on the side and a third bar on the support side of the arm, and the third bar is attached to a connecting member rotatably provided on the bar attached to the arm and attached to the arm. Cylinder cleaning apparatus characterized by being arranged between digit bar and the second bar. 7. The cylinder cleaning device according to claim 6, wherein the core of the cleaning cloth roll is positioned inside the rotation locus of the second bar and outside the rotation locus of the third bar. apparatus. 8. The cylinder cleaning apparatus according to claim 1, further comprising means for detecting a cleaning cloth end of the cleaning cloth roll.