JPH0668836U - Printing cylinder / roller cleaning device for printing machines - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the occurrence of distortion of the device and make the operation smooth. [Structure] A cleaning web 11 is provided which moves in sliding contact with the peripheral surface of the blanket cylinder 2. A plate-shaped cleaning pad 15 having flexibility and extending in the traveling direction of the cleaning web 11 was provided. One end of the cleaning pad 15 is swingably fixed, and a contact pressure adjusting screw 17 is provided for advancing and retracting a plurality of positions in the width direction on the swinging end side of the cleaning pad.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a printing cylinder / roller cleaning device for cleaning a printing cylinder such as a plate cylinder, a blanket cylinder, an impression cylinder, a transfer cylinder, and a roller such as a landing roller and a swing roller in a printing machine.

[0002]

[Prior art]

 Various printing machines such as an offset printing machine and an intaglio printing machine are equipped with printing cylinders such as a plate cylinder, a blanket cylinder, an impression cylinder, and a transfer cylinder, and rollers such as a dressing roller and a swinging roller. Since foreign matter such as ink dust and paper dust adheres to the peripheral surface of the printer during printing, the quality of the printed matter deteriorates.Therefore, the printing machine is equipped with various printing cylinder and roller cleaning devices to remove these foreign matters. ing.

Various types of this type of printing cylinder / roller cleaning device have been proposed in the past. Among them, for example, the cleaning device disclosed in Japanese Patent Laid-Open No. 63-296945 is as follows. Is configured.

That is, in this cleaning device, a first cleaning roller that rotates in contact with the blanket surface of the blanket cylinder and a second cleaning roller that rotates in contact with the first cleaning roller and the blanket surface of the blanket cylinder are rotated. A roller is provided on the apparatus frame with its both end shafts pivotally supported, and a cleaning liquid dropping pipe is provided above the first cleaning roller. A container for collecting the waste liquid is provided below the second cleaning roller.

Further, a stopper roller is pivotally attached to the free end of the arm, which is located below the second cleaning roller and is supported on the apparatus frame side, in contact with the blanket surface of the blanket cylinder. The roller is formed so as to be movable and adjustable in the perspective direction with respect to the blanket surface of the blanket cylinder.

With such a configuration, when the blanket cylinder and the first and second cleaning rollers are rotated, the foreign matter adhering to the blanket cylinder is washed off by the cleaning liquid dropped from the drip pipe, The foreign matter and the waste liquid from the cleaning are washed off by the cleaning roller and dropped into the container to be collected.

When the stopper roller is moved and adjusted, the entire cleaning device moves in the perspective direction with respect to the blanket surface of the blanket cylinder, so that the first cleaning roller and the second cleaning roller are in a desired state with respect to the blanket surface of the blanket cylinder. It is configured to be contacted with.

[0008]

[Problems to be solved by the device]

 However, in such a conventional printing cylinder / roller cleaning device, when the stopper rollers are moved and adjusted as described above, the rotating bodies such as the cleaning rollers pivotally supported by the left and right device frames are inclined and the left and right cores are not aligned. If the cleaning work is started in this state, the rotation of the rotating body will become twisted, which will cause problems such as smooth rotation and load on the rotary drive. is there.

The present invention has been made in view of the above points, and an object of the present invention is to provide a printing cylinder / roller cleaning device for a printing press, which is capable of preventing distortion of the device and performing smooth operation. I am trying.

[0010]

[Means for Solving the Problems]

 In order to achieve such an object, according to the present invention, in a printing cylinder / roller cleaning device of a printing machine, a cleaning web that moves by sliding contact with the peripheral surface of the printing cylinder / roller to be cleaned, and a flexible plate. A pressing member extending in the traveling direction of the cleaning web, the pressing member is rocked by elasticity to fix one end so as to press the cleaning web, and the rocking end of the pressing member is provided. An adjusting member is provided for adjusting the advancing / retreating of a plurality of positions in the width direction in the pressing direction of the pressing member.

[0011]

[Function] For example, when the printing cylinder / roller to be cleaned is a blanket cylinder, after the cleaning roller is wound in a separate process, the supply roller and the empty winding roller are pivotally supported by the apparatus frame, and then the winding roller is wound. The returned cleaning web is inserted between the pressing member and the blanket surface of the blanket cylinder, and its end is fixed to the take-up roller. Then, when the oscillating end side of the pressing member is pressed, the pressing member elastically oscillates and presses the cleaning web, so when the pressing member is fixed and the winding roller is rotated, the cleaning web pressed by the pressing member is removed. The blanket cylinder travels in contact with the blanket surface of the blanket cylinder, and foreign matter and waste liquid adhering to the blanket surface are wiped off by the cleaning web, transferred to the cleaning web, and taken up by the take-up roller.

When the cleaning web is pressed by swinging the pressing member, the contact pressure between the cleaning web and the blanket surface is adjusted by the pressing degree of the pressing member. Further, the swinging end side of the pressing member is pressed separately at a plurality of positions in the width direction, so that the contact pressure web is pressed uniformly without distorting the entire apparatus.

[0013]

【Example】

 1 to 3 show an example in which a printing cylinder / roller cleaning device of a printing machine according to the present invention is applied to a gum cylinder of a printing machine, FIG. 1 is a plan view of the printing cylinder / roller cleaning device, and FIG. FIG. 3 is a side view of the cylinder / roller cleaning device, and FIG. 3 is a side view of the printing cylinder / roller cleaning device in a state where the cleaning web is pressed by the pressing member.

In these drawings, in front of the blanket cylinder 2 around which the blanket 1 is wound, a blanket cylinder cleaning device indicated by reference numeral 3 is arranged. A pair of left and right device frames 4 supported in parallel with a machine frame (not shown) is provided. The left and right device frames 4 are connected by a stay 5 formed in the shape of a horizontally long rectangular plate, and the blanket cylinder cleaning device 3 having such device frames 4 and the like can swing about a support shaft 6. Supported by.

Reference numeral 7 denotes a detachable cylinder supported on the machine frame side, and a lower end portion of the device frame 4 is pivotally attached to an operating end portion of a piston rod 8 thereof. The entire blanket cylinder cleaning device 3 is configured to be attached to and detached from the blanket cylinder 2. Reference numeral 9 denotes a roller pivotally attached to a protrusion 10 on the apparatus frame 4 side, and the roller 9 contacts the bearers 2a at both ends of the blanket cylinder 2 to restrict the movement limit of the rubber cylinder cleaning device 3. Is configured to.

At the upper ends of the left and right device frames 4, a supply roller 12 including a cylindrical core material (not shown) and a cleaning web 11 wound on the core material in a separate process is rotatable and detachable. Further, at the lower end of the left and right device frames 4, a take-up roller 13 including a cylindrical core material (not shown) and a cleaning web 11 wound on the core material is provided. Is rotatably and detachably supported.

In this case, when the take-up roller 13 is rotated, the cleaning web 11 is unwound from the supply roller 12 and passes between a pressing device 14 and a blanket surface of the blanket cylinder 2, which will be described later, to pass the take-up roller 13. The take-up roller 13 is driven to rotate, for example, by transmitting the swing of a lever that is driven by an air cylinder and swings to the take-up roller 13 via a one-way clutch, so that the take-up roller 13 is intermittently driven. It is configured to rotate by a predetermined angle, and is configured to perform intermittent feed called fixed-dimension feed.

Therefore, the pressing device 14 will be described. A groove 5a extending in the axial direction of the blanket cylinder 2 is provided at the lower end portion of the stay 5, and the groove 5a is formed in a flexible plate shape having substantially the same width as the cleaning web 11. One end of the cleaning pad 15 as a pressing member bent in a U-shape and a plate-shaped fixing member 16 having an approximately L-shaped cross section and having substantially the same width as the cleaning pad 15 are overlapped. It is inserted and fixed with bolts 16a. That is, the cleaning pad 15 is supported by its elasticity so as to be swingable around the fixing portion by the fixing member 16.

A contact pressure adjusting screw 17 is screwed into the screw holes 5b provided at the upper end of the stay 5 so that the contact pressure adjusting screw 17 can move back and forth and is fixed by a loosening prevention nut 18. A holder 19 attached to an upper bent end, which is a swing end of the cleaning pad 15, is in contact with the tip end surface of the node screw 17. As a result, the loosening prevention nut 18 is loosened to move the contact pressure adjusting screw 17 back and forth, whereby the swinging end of the cleaning pad 15 advances and retracts, and the cleaning pad 15 moves the cleaning web 11 to the blanket surface of the blanket cylinder 2. The pressing force is adjusted while pressing and releasing the pressing force.

Further, a nozzle pipe 20 connected to a cleaning liquid tank (not shown) is supported above the holder 19, and a large number of nozzle pipes 20 for ejecting the cleaning liquid fed from the cleaning liquid tank are supported on the nozzle pipe 20. A nozzle hole is bored, and the cleaning liquid ejected from the nozzle hole is configured to be sprayed onto the cleaning web 11 between the cleaning pad 15 and the blanket surface of the blanket cylinder 2. Reference numeral 21 is a guide plate for guiding the sprayed cleaning liquid.

The operation of the blanket cylinder cleaning device configured as described above will be described. In a separate process, the supply roller 12 wound with the cleaning web 11 was pivotally supported on the device frame 4 of the blanket cylinder cleaning device 3, and the empty take-up roller 13 was pivotally supported on the device frame 4 of the cleaning device 3. After that, the cleaning web 11 unwound from the supply roller 12 is inserted between the cleaning pad 15 and the blanket surface of the blanket cylinder 2, and the end thereof is fixed to the winding roller 13.

Next, when the loosening prevention nut 18 is loosened and the contact pressure adjusting screw 17 is tightened, the holder 19 is pushed by the contact pressure adjusting screw 17, and the cleaning pad 15 is supported by the fixing member 16. The cleaning web 11 is pressed against the blanket surface of the blanket cylinder 2, and the contact pressure between the web 11 and the blanket surface is adjusted by the tightness of the contact pressure adjusting screw 17. In this case, since a plurality of contact pressure adjusting screws 17 are provided, partial adjustment is possible.

After the preparation, the blanket cylinder 2 is rotated, and the cleaning cylinder is ejected from the nozzle hole of the nozzle tube 20 to operate the attachment / detachment cylinder 7 to advance the piston rod 8 to move the blanket cylinder cleaning device 3 When it is brought into contact with the blanket cylinder 2 and the take-up roller 13 is fed at a fixed size, foreign matter such as paper dust and ink residue and the waste liquid of the cleaning liquid adhering to the blanket surface of the blanket cylinder 2 are pressed by the cleaning pad 15. The cleaning web 11 is wiped off by the web 11 and transferred to the cleaning web 11, and the cleaning web 11 is wound up by the winding roller 13 on which foreign matters are attached.

4 and 5 show another embodiment of the present invention, FIG. 4 is a plan view of a printing cylinder / roller cleaning device, and FIG. 5 is a printing cylinder / roller cleaning device shown in a pressed state of a cleaning web by a pressing member. FIG. In these figures, members having the same constructions as those of the embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.

In the present embodiment, the contact pressure adjusting screws 22 are respectively screwed into the screw holes 5c and 5d, which are respectively provided at both ends of the stay 5 in the width direction, so as to prevent the loosening. It is fixed by a nut 23, and a pressing bar 24 provided in parallel with the stay 5 is supported at the tip of these contact pressure adjusting screws 22.

As a result, when the anti-loosening nut 23 is loosened and the left and right contact pressure adjusting screws 22 are individually advanced and retracted, the pressing bar 24 is inclined and the cleaning pad 15 is cleaned by the desired pressing force. It is pressed by 11.

6 and 7 show another embodiment of the present invention. FIG. 6 is a plan view of a printing cylinder / roller cleaning device, and FIG. 7 is a printing cylinder / row shown in a pressed state of a cleaning web by a pressing member. It is a side view of a la cleaning device. In these figures, members having the same configurations as those of the embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.

In the present embodiment, as in the embodiment shown in FIGS. 4 and 5, the contact pressure adjusting screw is provided in each of the screw holes 5c and 5d provided at one position on each end of the stay 5 in the width direction. 22 are respectively screwed so as to be adjustable forward and backward and fixed by loosening prevention nuts 23. A pressing bar 24 provided in parallel with the stay 5 is supported at the tip end of these contact pressure adjusting screws 22. ing.

Further, between these left and right contact pressure adjusting screws 22, a plurality of contact pressure adjusting screws 25 are screwed into screw holes arranged side by side in the width direction of the stay 5 so as to be adjustable forward and backward. The tips of the plurality of contact pressure adjusting screws 25 are inserted into and retracted from the holes provided in the pressing bar 24.

In the embodiment configured as described above, a plurality of contact pressure adjusting screws 25 are provided as in the embodiment shown in FIGS. 1 to 3, so that partial adjustment is possible and Similarly to the embodiment shown in FIGS. 4 and 5, when the loosening prevention nut 23 is loosened and the left and right contact pressure adjusting screws 22 are individually advanced and retracted, the pressing bar 24 is inclined and the cleaning pad 15 is set to the desired position. The web 11 is pressed by the pressing force.

In these three embodiments, conventionally, in order to adjust the contact pressure between the cleaning web and the printing cylinder / roller to be cleaned, the cleaning device is detached from the machine and the rollers abutting on the bearer are adjusted. It was necessary to adjust the position of the support member on the machine frame side that supports the device, but since the adjustment work can be done while the device is mounted on the machine, workability is improved. In addition, in the embodiment shown in FIGS. 1 to 3 and the embodiments shown in FIGS. 6 and 7, the contact pressure can be partially adjusted while the apparatus is mounted on the machine, and the cleaning effect is improved.

[0032]

[Effect of device]

 As is apparent from the above description, according to the present invention, in the printing cylinder / roller cleaning device of the printing press, the cleaning web that moves in sliding contact with the peripheral surface of the printing cylinder / roller to be cleaned, and the flexible plate shape And a pressing member extending in the traveling direction of the cleaning web, and one end of which is fixed so as to elastically rock the pressing member to press the cleaning web. By providing an adjusting member that adjusts the multiple positions in the width direction of the press member in the pressing direction of the pressing member, the pressing member can be adjusted so that the shaft center of the cylinder to be cleaned and the roller does not tilt. Even if the cleaning work is started later, the rotation of the cylinder and roller to be cleaned does not become twisted, so that the rotation is smooth and the cleaning performance is improved, and the load on the rotary drive device can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view of a printing cylinder / roller cleaning device.

FIG. 2 is a side view of a printing cylinder / roller cleaning device.

FIG. 3 is a side view of the printing cylinder / roller cleaning device in a state where the cleaning web is pressed by the pressing member.

FIG. 4 is a plan view of a printing cylinder / roller cleaning device according to another embodiment of the present invention.

FIG. 5 is a side view of the printing cylinder / roller cleaning device according to another embodiment of the present invention, showing the cleaning web pressed by the pressing member.

FIG. 6 is a plan view of a printing cylinder / roller cleaning device according to another embodiment of the present invention.

FIG. 7 is a side view of a printing cylinder / roller cleaning device according to another embodiment of the present invention.

[Explanation of symbols]

 2 blanket cylinder 3 blanket cylinder cleaning device 4 device frame 5 stay 11 cleaning web 14 pressing device 15 cleaning pad 16 fixing member 17 contact pressure adjusting screw 18 locking nut 19 retainer 22 contact pressure adjusting screw 23 loosening nut 25 contact pressure adjusting Screw 26 Lock nut

Claims (1)

[Scope of utility model registration request] 1. A cleaning web, which moves in sliding contact with the peripheral surface of a cylinder / roller to be cleaned, and a pressing member, which is formed into a flexible plate and extends in the traveling direction of the cleaning web, are provided. An adjusting member is provided, one end of which is elastically rocked so as to press the cleaning web, and one end thereof is fixed, and a plurality of widthwise positions on the rocking end side of the pressing member are adjusted forward and backward in the pressing direction of the pressing member. A printing cylinder / roller cleaning device for a printing press.