JPH1076626A - Roller for rotary printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To alter a position of a rotating axis of a roller body in relation to a pin by a regulator assembled in a roller. SOLUTION: The roller for a rotary printer comprises two pins 6 disposed at bearing positions and impossible to rotate, and a roller body 5 rotatably supported to the pins. In this case, a regulator 4 for altering the position of a rotating axis 42 of the body 5 to a longitudinal axis 43 of the pin 6 is disposed between at least one pin 6 and the body 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary printing press having two pins which are non-rotatably arranged at bearing locations and a roller body (Walzenballen) which is rotatably supported on these pins. Related to the roller.

[0002]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a roller for a rotary printing press.

[0003]

According to the present invention, there is provided an adjusting device for changing the position of the axis of rotation of the roller body relative to the longitudinal axis of the pin between at least one pin and the roller body. Is arranged.

[0004]

The advantages obtained by the present invention are, in particular,
An adjustment device integrated into the roller allows the position of the axis of rotation of the roller body to be changed in relation to the pin. This is obtained in a simple manner by the eccentric adjustment device. This allows the roller pins to
Outside the machine, the desired axial spacing for the adjacent rollers can be pre-adjusted.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings.

The roller 1 of a rotary printing press, in particular for an inking or dampening device, mainly comprises a roller body 5 and a pin 6 with an adjusting device 4. The roller body 5
For example, it has a tube 2 with a coating 3. The coating 3 may for example consist of an elastomer, plastic, ceramic or metal layer, but this coating 3 may be omitted. The pin 6 and the adjusting device 4 belonging to the pin 6 are provided, for example, at both ends of the roller 1. For simplicity, only one end of the roller 1 will be described below.

[0007] By means of the adjusting device 4, for example, the roller body 5
Alternatively, the outer peripheral surface 7 of the roller 1 is supported eccentrically adjustable with respect to the pin 6 of the roller 1. A pin 6 is used to support the roller 1 on one inside 8 of a side frame 9 of a rotary printing press, which in the embodiment shown is a bearing point, for example a bearing lever 11 shown schematically. Has been accepted by For this purpose, the bearing lever 11
It has a pin 12 with an additional portion 13. The additional portion 13 has a curved surface or a flat surface 14 in the radial direction that matches the radius of curvature of the pin 6. A threaded hole 16 is formed in this surface 14, into which a threaded screw 18 is screwed through a radial hole 17 of the pin 6. Thereby, the first end of the pin 6 is non-rotatably connected to the bearing lever 11 by the threaded screw 18. When the threaded screw 18 is released, the roller 1 can be removed. The roller body 5, the adjusting device 4, and the pin 6
One unit is formed and together the individual components can be removed from the bearing location without disassembly. The second end of the pin 6 is connected to the adjusting device 4. This adjusting device is configured, for example, as a worm gear transmission. For this purpose, the second end of the pin 6 has a worm gear 19 which is located concentrically with the pin.
The worm gear 19 is rotatable without play, but is fixed in the axial direction by a fixing ring 21 and has a relative axial position in a first axial bore 22 of the disk 23 which is aligned with the worm gear 19. It is supported so that it cannot slide. A second hole 24 intersecting with the first hole 22 is provided in the disk 23 in a tangential direction. This second bore 24 receives a worm 26 cooperating with the worm gear 19. The tooth row 20 of the worm gear 19 is
The worm meshes with the teeth 25 of the worm. Worm 26
It is rotatable, but is non-slidably mounted in the bore 24 in the longitudinal direction of the bore 24 by means of two bushes 27 and two fixing rings 28. At both ends of the worm 26,
One hexagonal hole 29 is provided for each tool for introducing a rotary movement.

The disk 2 located on the side opposite to the hole 22
A pin 32 is firmly fixed eccentrically to the hole 22, and thus eccentrically to the pin 6, on the end face side 31 of the pin 3. The eccentricity 33 is, for example, 5 mm. Pin 32
Are rotatably mounted in relation to the tube 2 of the roller 1. For this purpose, for example, two rolling bearings 34 are provided, and these rolling bearings 34
By means of 6, the pin 32 is held rotatably in a bush 37, which is rigidly connected to the tube 2, but non-slidably in the axial direction. The disk 23 has a collar 38,
The collar 38 is provided with a scale. The collar 39 can be provided with an index 39 fixed as a disk and formed as a disk.

In this way, the pin 6 is connected to the tube 2 and thus to the roller body 5 of the roller 1 by the adjusting device 4
The roller body 5 is rotatably supported by a pin 6.

The mode of operation of the roller 1 according to the invention is as follows.

In order to change the axial distance between the roller 1 according to the invention and another roller 41, a worm 2 is used with a tool.
6 is rotated. By the cooperation of the worm 26 and the worm gear 19 of the pin 6, which is fixed so as not to rotate relative to the side frame 9, the disc 23
The pin 32 eccentrically pivoted with respect to the disk 23 and eccentrically fixed to the disk 23 changes its position with respect to the pin 6. This causes the axis of rotation 42 of the roller body 5 of the roller 1, fixed by the pin 32, to change in relation to the longitudinal axis 43 of the pin 6, and thus the axial distance a between the two rollers 1 and 41. Change.

Instead of the adjusting device 4 according to the embodiment shown, it is also possible to provide the pin 6 with a disk 23.
In this case, the worm gear 19 is provided on the pin 32, and the worm gear 19 is eccentrically arranged with respect to the pin 32. According to such a configuration, the disk 2
Since 3 does not turn, the position of the worm 26 does not move.

Instead of supporting the pin 32 in the tube 2 of the roller 1, the pin 32 may be connected to the tube 2 and the bearing may be arranged eccentrically with respect to the pin 6 in the disk 23.

Instead of the worm 26 and the worm gear 19, the adjusting device 4 may have a gear and a rack cooperating with the gear.

Similarly, the pin 6 may have a cutout in the radial direction in which the nut engages. The nut is slidable tangentially with respect to the pin 6 by means of a threaded spindle, causing a relative pivoting movement between the pin 6 and the pin 32.

Instead of two adjusting devices 4 for the two pins 6, it is also possible to provide only one adjusting device 4 on the pins 6. The movement of this one adjusting device 4 is transmitted to the second pin 6.

[Brief description of the drawings]

FIG. 1 is a schematic plan view, partially broken away, of a roller according to the invention.

FIG. 2 is a schematic view of a roller according to the invention, viewed in the axial direction with a partial breakage.

[Explanation of symbols]

1 roller, 2 tubes, 3 coating, 4 adjusting device, 5 roller body, 6 pins, 7 outer peripheral surface, 8 inside, 9 side frame, 11 bearing lever, 12 pins, 13 additional portion, 14 surface,
16 threaded hole, 17 hole, 18 threaded screw, 19 worm gear, 20 tooth row, 21 fixing ring, 22 hole, 23 disk, 24
Hole, 25 tooth row, 26 worm, 27 bush, 28 fixing ring, 296 square hole, 31 end face side, 32 pin, 33 eccentricity, 34 rolling bearing, 36 fixing ring, 37 bush, 38
Spit, 39 indicator, 41 second roller, 42
Rotation axis, 43 Longitudinal axis, a-axis spacing

Claims (6)

[Claims] 1. A rotary printing press comprising two pins (6) non-rotatably arranged at bearing locations and a roller body (5) rotatably supported on these pins (6). The position of the rotation axis (42) of the roller body (5) relative to the longitudinal axis (43) of the pin (6) between the at least one pin (6) and the roller body (5). Roller for a rotary printing press, characterized in that an adjusting device (4) is arranged for the printing press. 2. The roller according to claim 1, wherein the axis of rotation of the roller body is arranged eccentrically pivotable with respect to the pin. 3. The roller according to claim 2, wherein the adjusting device comprises a drivable worm and a worm gear meshing with the worm teeth. 4. The roller according to claim 2, wherein the adjusting device has a gear and a rack that meshes with the gear. 5. A roller body (5) is rotatably mounted in relation to the disk (23) of the adjusting device (4),
A pin (6) having a worm gear (19) is pivotably supported on the disc (23), the pin (6) and the roller body (5) being eccentrically arranged with respect to each other;
A worm (26), which is non-slidable in the axial direction, is disposed in the disc (23), and the worm (26) and the worm gear (19) move between the pin (6) and the disc (23). 4. The roller according to claim 1, wherein the roller is arranged to generate a pivoting movement. 6. A roller body is mounted eccentrically rotatably in connection with a worm gear, the worm gear being concentric with respect to the pin (6) in a disk connected to the pin (6). A worm is mounted so as to be pivotable and axially non-slidable in the disc, such that the worm and the worm gear cause a pivoting movement between the pin (6) and the disc. 4. The roller according to claim 1, wherein the roller is arranged at a distance from the roller.