JP2904479B2 - 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 press with a cleaning cloth. The present invention relates to a cylinder cleaning device having a structure for mounting an outer periphery of a cleaning cloth supply body manufactured in a form such as zigzag folding, or a container accommodating the cleaning cloth supply body.

[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 normal cleaning cloth supply is not performed. In addition, there is a risk that the roll will come off and fly out, destroying 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. Further, 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 is used. Inevitably, the conventional mounting method has a problem in strength, and this measure has been desired.

In order to solve the above-mentioned problem, the applicant of the present invention has disclosed in Japanese Patent Application No. 7-352877 a method in which a cleaning cloth supply is placed in a container and the outer periphery of the cleaning cloth supply is placed on the inner wall of the container. A cylinder cleaning device with a structure was proposed. With this structure, the distance between the container and the cleaning cloth take-up shaft is widened in advance so that the outer periphery of the cleaning cloth take-up roll does not come into contact with the container even if the cleaning proceeds and the diameter of the cleaning cloth take-up roll increases. ing. For this reason, if a container accommodating the cleaning cloth supply body can be used, there is a problem that the apparatus becomes larger than a type using only the cleaning cloth supply body. SUMMARY OF THE INVENTION It is an object of the present invention to make the core portion extremely thin or not to use the core, thereby improving the space efficiency (space factor) of the cleaning cloth supply and improving the cleaning cloth supply in a container. An object of the present invention is to provide a cylinder cleaning device which can be used and at the same time miniaturized.

[0005]

In order to achieve the above object, according to the present invention, a cleaning cloth supplied from a cleaning cloth supply unit contained in a container to a cleaning cloth winding shaft is pressed against the outer periphery of a cylinder. In a cylinder cleaning device for cleaning an outer peripheral surface of a cylinder, the cleaning cloth winding shaft that is wound in a roll shape around the cleaning cloth winding shaft is arranged within a range where the cleaning cloth winding roller interferes with a container, and the diameter of the cleaning cloth winding roll is adjusted. In a structure in which the shape of the container undergoes a physical change in the increasing direction.

Another aspect of the present invention is characterized in that the following configuration is provided alone or in combination with the first aspect of the invention. (1) A movable part is provided in a part of the container facing the cleaning cloth winding shaft, and the movable part of the container is relatively moved as the diameter of the cleaning cloth winding roll increases. (2) With the increase in the diameter of the cleaning cloth winding roll, the outer periphery of the cleaning cloth winding roll is directly or indirectly applied to the movable portion of the container to move the movable portion. (3) A deformable portion is provided in a part of the container facing the cleaning cloth winding shaft, and the deformable portion of the container is deformed as the diameter of the cleaning cloth winding roll increases. (4) With the increase in the diameter of the cleaning cloth winding roll, the outer periphery of the cleaning cloth winding roll acts directly or indirectly on the deformable portion of the container to deform the deformable portion. . (5) The movable part or the deformable part of the container is constituted by a bottom member on which the cleaning cloth supply body is placed. (6) The container is provided with a brake means for applying a brake to the cleaning cloth when the cleaning cloth is delivered. (7) A cleaning cloth tensioning means for tensioning the cleaning cloth is provided in the container. (8) A cleaning cloth pull-back means is provided between the container and the cylinder pressing portion of the cleaning cloth. (9) A means for detecting the end of the cleaning cloth is provided in the container. (10) The container is provided with cleaning cloth draw-out restricting means for preventing the cleaning cloth in the container from being pulled out when the cleaning cloth pull-back means is operated. (11) The container is provided with an opening at the outer periphery in the longitudinal direction of the container to receive the cleaning cloth supply body. (12) At least one side end of the container has an opening for receiving the cleaning cloth supply. (13) Any one of brake means, cleaning cloth tensioning means, cleaning cloth retraction means, and cleaning cloth pull-out stopping means is provided at the outlet of the container. (14) At least two of the brake means, the cleaning cloth tensioning means, the cleaning cloth pull-back means, and the cleaning cloth pull-out stopping means are provided at the outlet of the container.

According to the structure of the present invention, the structure in which the cleaning cloth is put in the container makes it easy to install and remove the cleaning cloth, and also facilitates the handling of the cleaning cloth, and the cleaning cloth winding roll interferes with the container. By arranging the cleaning cloth winding shaft within the range, the apparatus can be made compact. Further, it is possible to use a cleaning cloth roll or a cleaning cloth supply body having a wide range of shapes and core sizes. In addition, a wide variety of cleaning cloth supplies can be used with only minor reworking of the existing various types of cleaning equipment already installed.

In a preferred embodiment, the cleaning cloth supply body is housed in a rigid container (cassette or cartridge) that is hardly deformed or a container made of a film material that is easily deformed (including one packed with a film material). Since the container is directly supported, the handling of the cleaning cloth supply body is improved. In particular, in the case of a cleaning cloth impregnated or coated with a liquid, jelly-like, or paste-like cleaning agent, volatilization and drying are prevented by the container, and a decrease in the performance of the cleaning cloth can be suppressed, and handling becomes easier. In the case of using a highly volatile cleaning agent, it is more effective to store it in a container. For example, when a large amount of a cleaning agent is used, such as a cleaning cloth used for a cylinder cleaning device of an offset rotary printing press, a large amount of the cleaning agent is impregnated or applied to the cleaning cloth, that is, a cleaning cloth impregnated in a saturated state. Thus, it is possible to prevent the detergent leached from the cleaning cloth from leaking to the outside, and to keep the detergent inside the container.

Further, by providing the cleaning cloth withdrawing means, a part of the cleaning cloth supplied from the cleaning cloth supply body can be returned to the cleaning cloth supply side, and the cleaning cloth can be used again as the cleaning cloth. In addition to improving the efficiency of use, cleaning costs are reduced and resources are saved. Further, by providing the brake means, when the cleaning cloth is pressed against the surface of the cylinder, a cooperative force acts on the cleaning cloth in the rotation direction of the cylinder. The cleaning cloth may be further pulled out from the cleaning cloth supply by this force. Because of this, brakes are applied to the cleaning cloth to overcome the tailgating power to prevent tailgating. Further, by providing the cleaning cloth tensioning means, if the cleaning cloth is loosened, wrinkles are generated in the cylinder press-fitting portion, and the cleaning cloth is not easily pressed uniformly on the cylinder surface, so that cleaning unevenness easily occurs.
Also, if there is a slack, there is a danger that the slack portion will come into contact with the cylinder during non-cleaning and contaminate the cylinder surface, or the cleaning cloth will be rolled up by the cylinder. can do.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. A common feature of the present invention is that the cleaning cloth supply member is used in a form in which the cleaning cloth is wound in a roll shape or in a form in which the cleaning cloth is folded in an anti-fold shape (zigzag fold). In particular, a cleaning cloth roll having a tubular core or a rod-shaped core, or a roll having no such core is used. Further, the cleaning cloth is formed of ordinary cloth, non-woven fabric, paper, plastic film, and those obtained by treating them, or the like. The treated cleaning cloth is, for example, a cloth impregnated with a liquid in advance, or a cloth impregnated with a liquid in advance and further packaged as in a vacuum pack. Also includes those coated with.

FIG. 1 is a sectional view showing the basic structure of a cylinder cleaning device according to the present invention. FIG. 2 shows the configuration of the cleaning unit without the cleaning cloth viewed from the rear side. In the present embodiment, the cleaning cloth roll 3 is wound as a roll as the cleaning cloth supply 3.
A cylinder cleaning device having a container filled with 0 will be described. The cylinder cleaning device is configured as a cleaning unit 2 that is attached to face a cylinder 1 of a printing press. The cleaning unit 2 includes a cleaning cloth support unit 6 that supports a container 4 containing a cleaning cloth roll 30, and a cleaning cloth. Roll 30
A cleaning cloth advancing section 7 for feeding out the cleaning cloth 3a from the cylinder, and a cylinder crimping section 8 for pressing the cleaning cloth 3a stretched between the cleaning cloth support section 6 and the cleaning cloth advancing section 7 against the surface of the cylinder 1. The pressure pad 8a constituting the cylinder crimping portion 8 is supported by a support bar 10 as a cross beam member which is passed to side frames 9 arranged on both sides of the cleaning unit 2.

A specific example of each of the above-described units will be described. The rigid container 4 includes an end plate 11 supported by a side frame 9.
A cover 12 is rotatably provided on a shaft 13 at the loading port of the cleaning cloth supply body of the container, and the cover 12 is opened to put the cleaning cloth roll 30 into the container. The cleaning cloth 3a is drawn out from a slit-shaped outlet 15 formed between the free end of the cover 12 and the end of the fixed plate 14. The outlet 15 overlaps the end of the cover 12 with the end of the fixed plate 14, and is constituted by a bent passage of the S-lap formed between the two members. Cleaning cloth 3
a is drawn out while bending the passage as shown. At this time, the brake is applied by friction with the ends of both members, and the cleaning cloth 3a is tensioned.

In this embodiment, the cover 12 is biased by a spring 16 so as to move in the direction of the fixed plate 14 in order to effectively apply the braking action. This makes strong contact with the cleaning cloth 3a pulled out by the winding operation of the cleaning cloth advancing part 7, and increases friction with the cleaning cloth. One end of the bottom member 17 of the container is rotatably attached to a shaft 13 common to the cover 12, and the other end is received by a receiving bar 18 fixed to the side plate 9. The bottom member 17 may have any structure as long as the cleaning cloth supply body 3 can be placed thereon. For example, a fork-like member, a net-like member, or the like can be applied.

The cleaning cloth support 6 is provided on one end plate 11 (right end plate in FIG. 2) with a non-rotating shaft, for example, a shaft 20 having a rectangular cross section.
And an engagement hole 21 is formed in the other end plate 11 (the left end plate in FIG. 2). One side plate 9 has a fitting hole 22 into which the shaft 20 fits. The other side plate 9 is provided with an engagement body 23 that engages with the engagement hole 21 so as to rotate and move in the direction of the end plate. The engagement body 23 is formed with an annular groove 24 for positioning at a position engaging with the engaging hole 21 and a position not engaging with the engaging hole 21. The side plate 9 is provided with a ball 25 and a spring 26 for pressing the ball.
The ball 25 enters the third annular groove 24 and is positioned. Here, the annular groove 24 of the engagement body, the ball 2
5. The spring 26 constitutes a click mechanism. The cleaning cloth advancing section 7 includes a cleaning cloth take-up shaft 27 and a driving device 28 such as a motor for rotating the shaft 27. The cleaning cloth 3a is supplied.

The brake acting portion extends the support bar 10 in FIG. 1 to the side opposite to the pressure pad 8a,
The support bar 10 is provided on the outer peripheral surface of the rear end portion 10 a and the outlet 15 of the container 4. The cleaning cloth 3a drawn out of the container 4 is brought into contact with the outer peripheral surface of the support bar so as to go around the rear end portion 10a, and the pressure pad 8a is moved to the rear side via the support bar to take up the cleaning cloth. It is wound around the shaft 27. The cleaning cloth 3a supplied from the cleaning cloth roll 30 by the rotation of the cleaning cloth winding shaft 27.
When the advancing device is in contact with the outer peripheral surface of the rear end portion 10a of the support bar, tension acts on the cleaning cloth 3a due to friction between the support bar and the outer peripheral surface of the rear end portion 10a, thereby preventing the cleaning cloth 3a from becoming loose. Is done. Since the S-wrap operates the brake at the outlet 15 on the container side, the effect of preventing the cleaning cloth from being loosened is further enhanced.

Next, the operation of the above embodiment will be described. The engaging body 23 is moved leftward from the position in FIG.
The engagement between the engagement hole 3 and the engagement hole 21 is released, and the container 4 is removed from the cleaning unit 2. The cover 12 of the container 4 is opened, the cleaning cloth supply body 3 is inserted, and the cover is closed. The shaft 20 of the container is fitted into the fitting hole 22 of the side plate 9, and the engaging body 23 is pushed into and engaged with the engaging hole 21, positioned by the click mechanism, and the container 4 is set in the cleaning unit 2. The cleaning cloth previously drawn from the container is wound around the cleaning cloth winding shaft, and the preparation is completed. When the motor 28 is operated to supply the cleaning cloth, the cleaning cloth 3a is pulled out of the container through the S-wrap of the container.

The used cleaning cloth is wound around the cleaning cloth winding shaft 27, and the diameter of the cleaning cloth winding roll 70 increases.
When the roll diameter increases in a state where the cleaning cloth winding roll 70 touches the bottom member 17 of the container, that is, in a state where the cleaning cloth winding roll 70 interferes, the bottom member 17 is pushed up by the outer peripheral surface of the cleaning cloth winding roll 70 as shown in FIG. That is, the bottom member 17 starts rotating in the direction of the arrow with the shaft 13 as a fulcrum, and its end is separated from the receiving bar 18. In this operation, the empty space in the container increases due to a change in the remaining amount of the cleaning cloth supply body, for example, a reduction in the roll diameter in the case of the cleaning cloth roll 30 or a reduction in the height in the case of the anti-folding cleaning cloth. . As a result, the bottom member 17 can be moved upward as shown in the figure without any trouble.

By using the cleaning cloth roll in a container as described above, the core can be made extremely thin or a cleaning cloth supply without a core can be used.
By disposing the cleaning cloth winding shaft close to the container, the size of the cleaning cloth unit can be reduced. Next, another embodiment will be described. FIG. 4 shows a structure in which the bottom member is formed of a deformable flexible material. Since the configuration other than the bottom member is the same as that of the embodiment shown in FIG. 1, the same reference numerals are given and the description is omitted.
Both ends of the deformable bottom member 29 are held by appropriately attaching slack to a mounting bar 31 fixed to the side frame 9. The bottom member 29 is made of, for example, a cloth, a synthetic resin sheet, a flexible net, or the like. Cleaning cloth roll 30
Is placed in the container 4 and is stably placed like a hammock as shown in the figure.

The used cleaning cloth 3a is used as the cleaning cloth winding shaft 27.
When the diameter of the cleaning cloth take-up roll 70 increases, the cleaning cloth take-up roll 70 interferes with the bottom member 29, and as shown in FIG.
Bottom member 17 is pushed up by the outer peripheral surface of. At this time,
The bottom member 17 is deformed along the outer peripheral surface of the cleaning cloth take-up roll 70, and protrudes inwardly into the container. Cleaning cloth roll 30
Moves to one of the left and right valleys, and is placed in a stable state according to a change in the diameter.

FIG. 6 shows a structure in which the cleaning cloth supply is placed on the immovable bottom member. In this embodiment, the support bar 10 is used.
The present invention is applied to a structure in which a container is placed thereon, but is not limited to this, and may be a structure in which the container itself is held by a side frame 9 as shown in FIG. In FIG. 6, the container 4 is placed on the support bar 10 and the shaft 41
A movable member 40 pivotally supported on the container 4 is disposed above the container 4. The movable member 40 is urged outward by a spring 42 as shown by an arrow, and its free end 44 is located inside the end 45 of the fixed bottom member 43. As a result, when the cleaning cloth 3a passes between the ends, the elastic force of the spring 42 acts on the S-wrap to generate a braking action, thereby preventing the cleaning cloth from being loosened. The cleaning cloth winding shaft 27 includes a movable member 40.
, And are arranged within a range that interferes with an increase in the diameter of the cleaning cloth winding roll 70.

When the used cleaning cloth 3a is wound up and the diameter of the cleaning cloth take-up roll 70 increases, the cleaning cloth take-up roll 70 interferes with the movable member 40, and as shown in FIG. The movable member 40 is pushed down by the outer peripheral surface of 70. That is, the movable member 40 starts rotating in the arrow direction with the shaft 41 as a fulcrum. In this operation, the change of the remaining amount of the cleaning cloth supply body, for example, the cleaning cloth roll 3
In the case of 0, the roll diameter decreases, or in the case of the anti-folding cleaning cloth, the height decreases, so that the empty space in the container increases. As a result, the movable member 40 can be rotated downward without any trouble as shown in the figure. In the other embodiments described above, the same operation and effect as those of the embodiment shown in FIG. 1 can be expected.
In the present embodiment, the cover 12, the bottom member 17, the movable member 4
Although the connection between the container member 43 and the fixed container component 43 is performed by a shaft, as a configuration other than the shaft, for example, a synthetic resin material may be used, and a hinge with a thin portion may be formed in a part thereof.

Next, an embodiment of a cylinder cleaning device having a cleaning cloth pull-back function will be described. A specific example of the cleaning cloth retraction means for returning a part of the cleaning cloth supplied and used by the cleaning cloth advancing portion to the cleaning cloth supply body side and reusing the cleaning cloth will be described. Note that the basic configuration of the container itself is the same as in each of the above embodiments, and a detailed description thereof will be omitted here. In the present embodiment, as a mounting method of the cleaning cloth supply body, a structure of mounting on a movable bottom member shown in FIG. 1, a structure of mounting on a deformable member shown in FIG. 4, or FIG. The present invention can be applied to any of the structures mounted on the fixed container component shown above.

FIG. 8 is a rear view of the cleaning unit without the cleaning cloth. Here, for the sake of explanation, the left member
A "and" B "on the right side member. A container support A is attached to the side frame (A) 9. The container support A holds one end of the container 4 (A).
50, a shaft (A) 5 provided on the holding member (A) 50
1 and a spring (A) 52 for imparting rotation of the holding member (A) 50 in a direction opposite to the direction in which the cleaning cloth is pulled out (anti-pull-out direction). In this example, as shown in the drawing, the shaft is constituted by a helical spring wound around a shaft (A) 51.

Stop means for stopping the container rotated by the return rotational force accumulated in the spring 52 at a predetermined position is provided. The stop means has a projection 53 on the holding member (A) 50 and one side frame. Protrusions 54 are respectively provided on the 9 side, and the protrusions 53 hit the protrusions 54 to stop the rotation of the container 4. The holding member 50 is provided with a fitting portion 56 that is fitted into a rectangular recess 55 formed in the end plate 11 of the container 4. As shown, when the fitting portion 56 is fitted into the concave portion 55, the holding member 50 and the container 4 can rotate integrally.

The side frame (B) 9 has a container support B
The container support B is provided with a holding member (B) 60 for holding the other end of the container 4, and the holding member (B).
60 is provided with a shaft (B) 61 provided on the holding member (B).
60 is opposite to the direction of pulling out the cleaning cloth (anti-pulling direction)
Is provided. Stop means for stopping the container rotated by the return rotational force accumulated in the spring 62 at a predetermined position is provided, and this stop means is provided by the holding member (B) 6.
A protrusion 63 is provided on the side 0 and a protrusion 64 is provided on the side frame (B) 9 side, and the protrusion 63 hits the protrusion 64 to stop the rotation of the container 4. In this example, the rotation stop of the container is fixed. However, the position of the protrusion or the protrusion is made to have a variable structure, and the amount of return rotation of the container can be adjusted by changing the position. With such a structure, it is possible to adjust the return amount of the used cleaning cloth to be reused according to the degree of contamination of the cleaning cloth for each cleaning operation.

The holding member 60 is provided with a fitting portion 66 that is fitted into a rectangular recess 65 formed in the end plate 11 of the container 4. As shown, when the fitting portion 66 is fitted into the concave portion 65, the holding member 60 and the container 4 can rotate integrally. A locking hole 67 is formed on the surface of the holding member 60 facing the side frame (B) 9, and the notch 69 is projected by the locking operation of the notch driving means 68 so that the locking hole 67 is formed.
And the container rotated when the cleaning cloth is pulled out is stopped at that position.

When a part of the used cleaning cloth is pulled back, if the friction generated by the support bar, the pressure pad and the like between the cleaning cloth winding shaft and the container is larger than the friction of the S wrap portion at the outlet 15 of the container, FIG. When the container is rotated in the direction shown in (1), the cleaning cloth is drawn out of the container. That is, a part of the used cleaning cloth cannot be pulled back. As a countermeasure against such a problem, a cleaning cloth draw-out stopping means is provided on the container side. By operating the cleaning cloth pulling-out restraining means when the used cleaning cloth is pulled back, the pulling out of the cleaning cloth from the container can be stopped.

In the example of the cleaning cloth pull-out restricting means shown in FIG. 9, they are provided at the ends 71 and 72 of the cover 12 and the fixing plate 14 constituting the outlet 15. In FIG. 10, a relief portion 73 is formed at an end 71 of the cover 12 so as to extend in the longitudinal direction of the container. A needle-like portion 74 piercing the cleaning cloth 3a is provided at an end 72 of the fixing plate 14.
Are provided at predetermined intervals in the longitudinal direction of the container. The relationship between the escape portion 73 and the needle-like portion 74 will be described with reference to FIG.
As shown in FIG. 7, when the cleaning cloth is pulled out, the cover 1 is formed by friction generated by the S-wrap formed between both ends 71 and 72.
In order to move 2 in the direction of the arrow against the elastic force of the spring 16, the needle-like portion 74 moves away from the cleaning cloth 3a to be pulled out.
In the operation of pulling back the used cleaning cloth, since the container rotates in the direction of the arrow in FIG. 9, friction caused by the S-wrap is eliminated, and the cover 12 is moved by the spring 16 in the direction of the arrow in FIG. The end 71 of the cover 12 is
The needle-like portion 74 pierces the cleaning cloth between the ends at the position of the escape portion 73 of the end 71, and the cleaning cloth is bitten at the outlet 15. When the container is rotated in the direction of the arrow in this state, the used cleaning cloth is pulled back.

The operation of this embodiment will be described. The notch driving means 68 is set to the unlocking operation so that the notch 69
When the lock 7 is in the unlocked state, the protrusion 63 is in a position where it comes into contact with the protrusion 64 by the force applied to the spring 62 to rotate the container 4 in the anti-pull-out direction (FIG. 11).
State). When pulling out the cleaning cloth, the cleaning cloth winding motor 28 is operated to wind up the cleaning cloth 3a around the cleaning cloth take-up shaft 27. When the cleaning cloth 3a passes through the S-wrap of the container 4, the cleaning cloth is pulled out (see FIG. The container rotates in the direction of arrow 12). The notch driving means 68 is operated in accordance with this timing, and the notch 69 is protruded.
When the locking hole 67 comes to the position of the notch 69 due to the rotation of the container, the notch 69 enters the locking hole 67, and the container is held at that position. In this operation, a returning force is accumulated in the springs 52 and 62. When the unlocking operation of the notch driving means 68 is performed at the end of the cleaning operation, the notch 69
The locking of the locking hole 67 is released, and as shown in FIG. 13, the holding member 60 rotates in the anti-pull-out direction, and the container 4 also rotates integrally. Due to the rotation of the container, the cleaning cloth withdrawing stop means provided at the outlet 15 acts to stop the drawing of the cleaning cloth from the cleaning cloth supply body in the container, and to remove a part of the used cleaning cloth, for example, the used cleaning cloth. Pull back about half the length of the cloth. At the time of the next cleaning operation, the used cleaning cloth pulled back first is used first, so that the usage amount of the cleaning cloth is reduced, and at the same time, the resources are effectively used.

FIG. 14 shows another embodiment of the movable bottom member. In this embodiment, the bottom member 80 on which the cleaning cloth supply body 3 is placed is set.
Are supported by two guide portions 81 and 82 movably in the vertical direction. The guide portions 81 and 82 are attached between the both end plates 11. The bottom member 80 is guided by the guide portions 81 and 8 until the outer periphery of the
2 are located at the bottom. Cleaning cloth take-up roll 7
When the outer periphery of the abutment 0 contacts the bottom member 80, the bottom member 80 is pushed up as shown in FIG.

Next, detection of the end of the cleaning cloth will be described. FIG. 16 shows a configuration of the cleaning cloth end detection using the optical sensor. The optical sensor 90 is disposed inside the fixing plate 14 or on the end plate 11, and optically detects a mark for detecting the end of the cleaning cloth 3 a of the cleaning cloth 3 a passing through the outlet 15 from a hole formed in the fixing plate 14. The detection signal is taken out from the end plate through the shaft 20 as shown by a broken line in FIG. 17 and sent to a control unit of a cylinder cleaning device (not shown) to monitor the cleaning cloth. FIG. 18 shows the configuration of another embodiment in which the cleaning cloth is completed. A limit switch 91 for detecting the end of the cleaning cloth is disposed downstream of the outlet 15. The limit switch 91 is provided outside the end plate 11 or the fixed plate 14. In order to monitor the end of the cleaning cloth 3a, a hole is formed near the edge in the width direction of the cleaning cloth, and a switch signal obtained by the sensing lever of the limit switch 91 responding to this hole is processed.

In the above-described embodiment, the structure in which the cleaning cloth supply body is set in the container from the charging port provided in the outer peripheral portion has been described. However, the structure may be such that the cleaning cloth supply member is charged from the side end of the container. In this case, a structure in which the end plate can be freely removed, or a mounting port provided in the fixed end plate, and a cap in which the cap can be removed can be selected. In the example shown in FIG. 19, a cleaning cloth supply body, preferably a cleaning cloth roll, is inserted into the opening at the side end of the container main body 100. The means for closing the opening may be a closing member 101 having an annular portion surrounding the opening from the outside as shown in FIG.
As shown in (2), it is composed of a closing member 102 having an insertion portion inserted inside the opening. In addition, the outer peripheral surface of the cleaning cloth winding roll abuts against the bottom member, the movable member, or the deformable member, that is, the structure that moves the bottom member by directly acting, the structure that moves the movable member, and the structure that deforms the deformable member As described above, the increase in the diameter of the cleaning cloth winding roll can be indirectly applied to the bottom member, the movable member, or the deformable member via a mechanical linkage mechanism.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a basic configuration of a cylinder cleaning device of the present invention.

FIG. 2 is a rear view of the cleaning unit without a cleaning cloth.

FIG. 3 is a diagram illustrating a relationship between a cleaning cloth winding roll and a bottom member.

FIG. 4 is a sectional view showing a structure in which a bottom member is formed of a deformable flexible material.

FIG. 5 is a diagram illustrating a relationship between a cleaning cloth winding roll and a flexible bottom member.

FIG. 6 is a sectional view showing a structure in which a cleaning cloth supply body is placed on a non-movable bottom member.

FIG. 7 is a diagram illustrating a relationship between a cleaning cloth winding roll and a movable member.

FIG. 8 shows a basic configuration of a cylinder cleaning device provided with a mechanism for pulling back a part of a used cleaning cloth, and is a rear view of the cleaning unit without the cleaning cloth.

FIG. 9 is a sectional view taken along line BB of FIG. 8;

FIG. 10 shows a specific example of a cleaning cloth pull-out restraining means, wherein FIG. 1A is an explanatory diagram when the cleaning cloth is pulled out, and FIG. 2B is an explanatory diagram when the cleaning cloth is pulled back.

FIG. 11 is a view taken in the direction of arrows CC in FIG. 8 before a cleaning operation is started.

12 is a view taken along the line CC of FIG. 8 when the cleaning cloth is drawn out.

FIG. 13 is a view on arrow CC of FIG. 8 when the cleaning cloth is pulled back.

FIG. 14 is a cross-sectional view showing another embodiment of the movable bottom member in FIG.

FIG. 15 is a diagram illustrating a relationship between a cleaning cloth winding roll and a bottom member.

FIG. 16 is a cross-sectional view showing an embodiment of detecting the end of a cleaning cloth.

FIG. 17 is a rear view of FIG. 16;

FIG. 18 is a sectional view showing another embodiment of the detection of the end of the cleaning cloth.

FIG. 19 is an explanatory diagram of a structure in which a cleaning cloth supply body is inserted from a side end of a container.

[Explanation of symbols]

1 ... cylinder, 2 ... washing unit, 3 ... washing cloth supply,
3a: cleaning cloth, 4: container, 6: cleaning cloth support, 7: cleaning cloth advancing part, 8: cylinder crimping part, 9: side frame,
10 ... support bar, 11 ... container end plate, 12 ... cover,
14 ... fixed plate, 15 ... outlet, 16 ... spring,
17: bottom member, 27: cleaning cloth winding shaft, 28: cleaning cloth winding motor, 29: deformable bottom member, 30: cleaning cloth roll, 40: movable member, 50, 60: holding member, 67
... locking holes, 68 ... notch driving means, 69 ... notches, 5
3, 63 ... projection, 54, 64 ... projection, 70 ... cleaning cloth take-up roll, 73 ... escape part, 74 ... needle-like part, 80 ... bottom member, 81, 82 ... guide part, 90 ... optical sensor, 91 ...
Limit switch, 100 ... container body, 101, 102
... Closing members

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B41F 35/00-35/06

Claims (15)

(57) [Claims] 1. A cylinder cleaning device for cleaning a cylinder outer peripheral surface by pressing a cleaning cloth supplied from a cleaning cloth supply body contained in a container to a cleaning cloth winding shaft, wherein the cleaning cloth winding shaft is provided with a roll. A structure in which the cleaning cloth winding shaft is disposed within a range where the cleaning cloth winding roll wound in a shape interferes with the container, and the shape of the container physically changes in a direction in which the diameter of the cleaning cloth winding roll increases. A cylinder cleaning device, characterized in that: 2. A movable part is provided in a part of the container facing the cleaning cloth winding shaft, and the movable part of the container is relatively moved as the diameter of the cleaning cloth winding roll increases. Item 2. A cylinder cleaning device according to Item 1. 3. The cleaning cloth winding roll according to claim 1, wherein the outer diameter of the cleaning cloth winding roll is directly or indirectly applied to a movable portion of the container to move the movable portion. The cylinder cleaning device according to claim 2, wherein 4. A deformable portion is provided in a part of the container facing the cleaning cloth winding shaft, and the deformable portion of the container is deformed as the diameter of the cleaning cloth winding roll increases. The cylinder cleaning device according to claim 1, wherein 5. As the diameter of the cleaning cloth winding roll increases, the outer periphery of the cleaning cloth winding roll acts directly or indirectly on the deformable portion of the container to deform the deformable portion. The cylinder cleaning device according to claim 4, wherein: 6. The cylinder cleaning device according to claim 2, wherein the movable portion or the deformable portion of the container constitutes a bottom member on which a cleaning cloth supply body is placed. . 7. The cylinder cleaning apparatus according to claim 1, wherein a brake means for applying a brake to the cleaning cloth when the cleaning cloth is delivered is provided in the container. 8. The container according to claim 1, further comprising a cleaning cloth tensioning means for tensioning the cleaning cloth.
Or the cylinder cleaning device according to 7. 9. A cleaning cloth pulling-back means for rotating the container in a direction opposite to a direction in which the cleaning cloth is pulled out, and pulling back a part of the used cleaning cloth.
A cylinder cleaning device according to any one of claims 7 and 8. 10. A cylinder according to claim 9, wherein said container is provided with a cleaning cloth draw-out restricting means for preventing the cleaning cloth in the container from being pulled out when said cleaning cloth pull-back means is operated. Cleaning equipment. 11. The container according to claim 1, wherein means for detecting the end of the cleaning cloth is provided in the container.
The cylinder cleaning device according to any one of claims 1 to 10. 12. The cylinder cleaning apparatus according to claim 1, wherein an opening is provided on an outer periphery in a longitudinal direction of the container to receive a cleaning cloth supply body. 13. The cylinder cleaning apparatus according to claim 1, wherein an opening is provided at at least one side end of the container to receive a cleaning cloth supply body. 14. A cylinder cleaning apparatus, wherein the means according to claim 7 is provided at an outlet of the container. 15. A cylinder cleaning apparatus, wherein at least two of the means described in any one of claims 7 to 10 are provided at an outlet of the container.