JPH07290683A - Adjuster in rotary press - Google Patents

Abstract

PURPOSE: To obtain an adjuster for rotary press in which a reliable analog indicating element comprises means as simple as possible. CONSTITUTION: The adjuster for rotary press comprises adjusting elements (4, 12) multi-rotatable about the axis between two final positions. In the adjuster, the adjusting elements (4, 12) are linked through a reduction gear with indicating elements (7, 16) turnale about the axis wherein the reduction gear has a reduction factor for converting the maximum rotational angle of the multi-rotatable adjusting elements into at most single revolution of the indicating elements.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjusting device in a rotary printing press having an adjusting element capable of multiple rotations about an axis between two final positions.

[0002]

2. Description of the Related Art An adjusting element consisting of a rotary knob for adjusting a circumferential register and a lateral register in a cylinder of a rotary printing press, particularly a sheet-fed rotary offset printing press, overcomes a large adjustment resistance and enables an accurate fine adjustment. To do so, it is desirable to be able to make multiple rotations about its own axis. Therefore, the maximum adjustment stroke is achieved by rotating the adjustment element multiple times with a suitable reduction ratio.

Such an adjusting device is known from German Utility Model No. 9113505U1. This publication discloses an adjusting device for a circumferential register in the cylinder of a rotary printing press. The barrel of this known device is driven by gears whose angular position with respect to the barrel can be adjusted.
For this adjustment, a roller that engages the diagonal groove of the groove plate is fixed to the gear, the groove plate rests on the gear, and the tooth of the gear has a small on the adjusting shaft that can be rotated by the adjusting knob. Gears (pinions) are engaged. Since it is necessary to rotate the knob multiple times for the maximum adjustment stroke of the groove plate, multiple adjustment positions of the groove plate correspond to the rotation angle of the knob, and the indication of the display element and, in some cases, the knob may be adjusted. It becomes extremely difficult to correspond to the rotation angle of.

[0004]

SUMMARY OF THE INVENTION It is an object of the invention to provide a reliable analog display element in an adjusting device in a rotary printing press having an adjusting element which is multiply rotatable about its axis between two final positions. Is to be configured by the simplest means possible.

[0005]

SUMMARY OF THE INVENTION In the present invention, the above-mentioned object is achieved by decelerating transmission of the characteristic described in the characterizing part of claim 1, namely, the adjusting element and the swivelable display element which rotates about its axis. Connected by means of a device, the reduction gear transmission
This is accomplished by the feature of having a deceleration factor that translates the maximum rotation angle of the multiply rotatable adjustment element into a maximum of one rotation of the display element.

The deceleration transmission can consist of a lever transmission or preferably a reduction gear. The reduction gear reduces the predetermined number of rotations of the adjustment element to a maximum of one rotation of the display element. Doing so makes it possible, on the one hand, to optimally adjust the rotation of the adjusting element for a precise, light, sensitive and precise adjustment, and on the other hand to display the exact adjustment position directly. Is possible.

[0007]

In a preferred embodiment of the idea of the invention, the reduction gear consists of a pinion gear connected to the adjusting element and a ring gear driven by this pinion gear. The ring gear is connected to the display element or itself constitutes the display element. Both the small gear of the adjusting element and the ring with internal teeth can be made relatively weak due to the relatively small mechanical load.

[0008] A special advantage is that the scale mark of the display element and
The adjustment element, for example the scale of the knob, can be associated, so that the actual adjustment position can be read directly in this case. Furthermore, an additional advantage resulting from this is that the adjusting element, for example the scale on the knob, has a vernier scale corresponding to the scale of the display element, in order to facilitate precise fine adjustments such as the register. It is a point that can be done.

Claims 4, 5 and 6 also disclose preferable characteristics of the constitution of the present invention. That is, it is desirable that the ring plate having the inner teeth of the display element is guided and held at the peripheral portion of the display element. Also, a scale mark is provided on the visible part of the front side of the display element ring plate,
Preferably, the element fixed to the machine frame comprises fiducial marks in the area of the scale marks. Furthermore, it is desirable that the fiducial mark is located on the window of the protective cover.

[0010]

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

The upper part of FIG. 1 shows an adjusting device for lateral registration of a rotary printing press, and the lower part shows an adjusting device for circumferential registration. The adjusting shaft 1 for lateral registration is rotatable at one end and is supported in the threaded sleeve 2 such that it cannot move axially. The outer screw of the screw sleeve 2 meshes with the inner screw of the holder 3 fixed to the machine frame. The screw sleeve 2 and the knob 4 forming the adjusting element are connected for rotation together, so that turning the knob 4 causes the adjusting shaft 1 to move axially through the screw sleeve 2. The maximum axial movement stroke of the adjustment shaft 1 corresponds to multiple rotations of the knob 4. In the exemplary embodiment, the journal connecting the knob 4 to the threaded sleeve 2 is formed as a pinion 5 with external teeth, the external teeth themselves meshing with the internal teeth 6 of the ring plate 7. . The ring plate 7
A component (scale ring) 10 whose axis 8 (FIG. 2) is eccentric to the center axis 9 of the knob 4 and is fixed to the casing.
, Is guided and held to rotate with it. The reduction ratio between the small gear 5 and the inner teeth 6 of the ring plate 7 is determined by the rotation of the knob 4 corresponding to the maximum axial adjustment stroke for lateral registration.
The ring plates 7 are adjusted to each other so that the maximum rotation of the ring plate 7 is one. The visible portion on the front side of the ring plate 7 is provided with scale marks corresponding to the drawing of FIG. In the illustrated representation of this graduation mark, the lateral register is at the zero position. Knob 4 to facilitate and monitor precise lateral registration
The scale ring 10 can be provided with a vernier scale corresponding to the scale mark on the ring plate 7. In order to hold the ring plate 7, a radially extending support flange 11 is
It is arranged on a component (holding tool) 3 fixed to the machine frame.
Since the outer edge of the support flange 11 is surrounded by the collar edge configuration of the ring plate 7, the ring plate 7 can rotate about a rotation axis 8 which is arranged eccentrically with respect to the axis 9 of the knob.

The knob 12 for the peripheral registration adjusting shaft 13 is fixed directly to one end of the adjusting shaft 13. In the vicinity of the knob 12 on the adjustment shaft 13, a small gear (pinion) 14 that meshes with the internal teeth 15 of the second ring plate 16.
Is provided. Here, in the reduction ratio, the maximum rotation speed of the knob 12 corresponds to the rotation angle of 360 degrees of the ring plate 16. Like the support flange 11, the ring plate 16 is guided and supported on a support flange 17 extending in the radial direction. The support flange 17 is connected to the holder 3 fixed to the machine frame, and the outer edge thereof is surrounded by the collar edge structure of the ring plate 16. In the visible part on the outside of the ring plate 16,
Corresponding to the expression at the bottom of FIG. 2, scale marks are also attached. The zero position shown corresponds to the center position of the circumferential register. The scale ring 18 is used to provide a vernier scale corresponding to the scale mark on the ring plate 16.

When a protective cover is provided, both the lateral register and the peripheral register display elements are protected by the protective wall 2.
Can be placed behind one. The protective wall 21 has windows 22 or 23 in the area of the scale marks on the ring plate 7 or 16, respectively. A reference mark can be attached to the window 22 or 23 so as to overlap with the scale mark on the ring plate 17 or 16. With this configuration, the adjusted value can be read.

[Brief description of drawings]

1 is a cross-sectional view in the axial plane of a lateral registration and circumferential registration adjustment element of a cylinder of a rotary printing press.

FIG. 2 is a front view of the display elements of two adjusting devices.

[Explanation of symbols]

 1 Adjusting shaft 2 Screw sleeve 3 Retainer 4, 12 Knob 5, 14 Small gear 6, 15 Internal tooth 7, 16 Ring plate 8, 20 Rotating shaft center 9, 19 Knob shaft center 10, 18 Scale ring 11, 17 Support Flange 13 Adjusting shaft 21 Protective cover 22, 23 Window

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hans-Jürgen Kush 69151 Neckargemund Dietrich Bongeferwerk 14

Claims (8)

[Claims] 1. An adjusting device in a rotary printing press having an adjusting element capable of multiple rotation about an axis between final positions, the adjusting element being connected by a reduction transmission.
12) and a swivelable display element (7, 16) which rotates about an axis (8, 20), said reduction gear transmission comprising:
Adjusting device in a rotary printing press, characterized in that it has a deceleration factor for converting the maximum rotation angle of the multiply rotatable adjusting elements (4, 12) into a maximum of one rotation of the display elements (7, 16). 2. The deceleration transmission comprises an adjusting element (4, 1).
2. Adjusting device according to claim 1, comprising a pinion (5, 14) connected to 2) and a ring gear (6, 15) driven by the pinion and connected to the display element. . 3. Small gears (5, 1) of the adjusting element (4, 12)
4) Among the ring plates (7, 16) of said display element, which is rotatable around a rotation axis (8, 20) arranged eccentrically with respect to the axis (9, 19) of the pinion. Teeth (6,15)
Adjusting device according to claim 1 or 2, which is in mesh with. 4. The ring plate (7, 16) of the display element with the internal teeth is guided and held at the peripheral edge of the display element. Adjuster. 5. The visible part of the front side of the ring plate (7, 16) of the display element has a graduation mark, and the element fixed to the machine frame has a reference mark in the area of the graduation mark. The adjusting device according to any one of 1 to 4. 6. Adjusting device according to claim 6, wherein the fiducial marks are arranged in the windows (22, 23) of the protective cover (21). 7. The rotatable adjusting element (4, 12) according to claim 1, wherein the rotatable adjusting element (4, 12) has a scale adjusted to the marking of the scale of the ring plate (7, 16). Adjuster. 8. Adjustment device according to claim 7, wherein the graduations of the rotatable adjustment elements (4, 12) have vernier scales corresponding to the graduations of the display element.