DE102006004571A1 - Drive unit for swing arrangement used in printing, comprises counter element joined with double swing mechanism to cam disk - Google Patents

Abstract

The swing arrangement is used for moving sheets to be printed to a feeding drum. The feeding drum (8) is joined to the shaft (10) moving the feeding drum together with at least one cam disk (20) controlling the drive and a cam disk controlling a torque compensating unit (31). A compensating mass (39) is additionally attached to the feeding drum (8). The compensating mass (39) is connected to the torque compensating disk (31).

Description

The The invention relates to a drive of a vibration system, the bow transported to a feed drum, which together with at least a drive cam and at least one of a torque compensation gear controlling balance cam arranged on a feed drum shaft is.

In sheet-processing machines it is common to bend the bow to one Anlegeisch and with the leading edge against in the course of the bow bringable front brands respectively and so to align with the leading edge. The following will be the bows aligned to the side edge. Then be the aligned and resting bow of the vibration system recorded and accelerated to feed drum speed and on handed over a feed drum. After the bow transfer is the oscillating system is delayed and to the landing table for takeover the subsequent arc returned. such Vibration systems have become the arc acceleration as a transmission type enforced. But they have the disadvantage that always positive and negative drive torques occur whose amplitudes increase with Speeds and format widths are getting bigger, so the vibration system represents the main vibrator in sheet-processing machines. The periodically fluctuating torque requirement leads to oscillations in the sheet feeding system and over the gear train to the printing units, which ultimately leads to registration errors and duplication leads.

To eliminate this disadvantage, a power balance of the oscillating system is required. This was in the DD 266 784 B5 proposed to realize in a generic vibration system drive the course of movement of the balance cam with the help of at least one jerk and shock-free sine curve for the synchronizing and the mating section. The balance cam, consisting of curve and counter-cam, and the drive curve, which also consists of curve and counter-cam, are mounted together with the feed drum on the feed drum shaft, while the balance torque is mounted on an additional shaft and roller lever with curve / counter-curve of the balance cam in Connection stands.

adversely is that for the compensation torque additional Bearing points are required and further bending loads in the Anlegtrommelwelle be initiated.

task The invention is, with a small space with simple means to realize a stable overall transmission.

According to the invention Problem solved by a drive according to the features of claim 1.

By the solution according to the invention is next the desired one Torque compensation a stabilization of the overall drive with minimal space reached.

At an embodiment the invention will be closer explained. In the associated Drawings show

1 a schematic representation of a plant printing unit with a vibration system in the side view,

2 a kinematic scheme of the vibration system drive,

3 a partial view of the feed drum shaft in a sectional view.

In the 1 is a plant printing unit 1 with a printing cylinder 2 a rubber cylinder 3 and a plate cylinder 4 shown. From the cylinders 2 . 3 and 4 each is a Druckzylinderrad 5 , a rubber cylinder wheel 6 and a plate cylinder wheel 7 shown. The impression cylinder wheel 5 combs with a dresser 8th associated application drum 9 , feed drum 8th and application drum wheel 9 are on a feed drum shaft 10 arranged. The printing cylinder 2 and the impression cylinder wheel 5 are with a drive wheel 11 on a printing cylinder shaft 12 stored, with the Eintriebsrad 11 a snail 13 meshes, which has a drive shaft 14 and a belt drive 15 with a main engine 16 connected is. With the printing cylinder wheel 5 Also combs a transfer cylinder wheel 18 that with a transfer cylinder 17 connected is. Through the transfer cylinder wheel 18 downstream units of the printing press are driven.

On the feed drum shaft 10 are next to the feed drum 8th and the feed drum wheel 9 , as in 2 and 3 shown a drive cam 19 acting as the main drive cam 20 and PTO cam 21 is formed, provided. On the main drive cam 20 is a law of motion for the realization of the motion task of a vibration system 22 applied. To do this, run on the main drive cam 20 a major curve role 23 and on the PTO cam 21 a secondary curve role 24 from. The cam rollers 23 . 24 are in a double roller lever 25 stored on a roller lever shaft 26 is arranged. For clearance compensation z. B. a main curve role 23 double roller lever carrying arm 25 be formed elastic than a Nebenkurvenrolle 24 carrying arm. The Doppelrol lenhebel 25 is by a swingarm 27 and a paddock 27.1 with a bearing lever 28 connected on a the vibration system 22 carrying swinging shaft 29 arranged and with the vibration system 22 is connected so that it is pivoted in the power stroke by a pivot angle ψ.

With the feed drum shaft 10 is still a compensation cam 30 connected in the embodiment as Hauptausgleichkurvenscheibe 31 with a secondary compensation cam 32 is trained. At the main compensation cam 31 runs a first cam roller 33 and at the secondary balance cam 32 a second cam follower 34 from. The cam rollers 33 . 34 are in a double swing 42 taken on a balance shaft 35 is stored.

At the double swing 42 is rigidly a drive member 36 provided by swivel joints 37 and a paddock 38 with one as a compensation torque 39 trained output member 40 connected is. The compensation torque 39 is rotatable on the feed drum shaft 10 stored. drive member 36 , Transfer element 38 and output member 40 make up together with the swivel joints 37 a double swing transmission 41 with the balance shaft 35 and the feed drum shaft 10 as frame points.

The feed drum shaft 10 is known with the feed drum 8th in machine walls 43 stored. To stabilize the overall drive, consisting of feed drum 9 , Cams 20 . 21 . 30 . 31 , Double roller lever 25 with cam rollers 23 . 24 as well as downstream mechanisms, double swing 42 with cam rollers 33 . 34 , Double swing transmission 41 and compensation torque 3 , is as a third bearing point of the feed drum shaft 10 a housing wall 44 intended.

The on a feed table 45 aligned and resting arches are by grippers 46 the vibration system 22 recorded, subsequently accelerated to application drum speed and to a sheet holding device 47 the application drum 8th to hand over. Then the vibration system 22 delayed and after passing through a turning point in turn accelerated and to the feed table 45 recycled. When approaching the feed table 45 becomes the vibration system 22 Delayed to receive a follow-up arc. The movements of the vibration system 22 are controlled by the on the drive cam 19 Realized motion law while passing through the balance cam 30 Movements are initiated to torque or power compensation. These movements are made by the double swing transmission 41 on the feed drum shaft 10 directed. In order not to allow distortions of the compensating movements, the double swing transmission becomes 41 formed in an advantageous manner with the same link lengths. D. h., The distance between the feed drum shaft 10 and the balancing shaft 35 agrees with the length of the paddock 38 and the distance between the application drum shaft 10 as well as at the Ausgleichdrehmasse 39 attacking swivel 37 agrees with the length of the drive link 36 match.

1

Plant printing unit

2

pressure cylinder

3

rubber cylinder

4

plate cylinder

5

Druckzylinderrad

6

Gummizylinderrad

7

Plattenzylinderrad

8th

feed drum

9

Anlegtrommelrad

10

Anlegtrommelwelle

11

Eintriebsrad

12

Pressure cylinder shaft

13

slug

14

drive shaft

15

belt drive

16

main engine

17

Transfer cylinder

18

Übergabezylinderrad

19

Operating cam

20

Main drive cam

21

PTO cam

22

swing feeder

23

Main follower

24

Besides follower

25

Double roller lever

26

Roller lever shaft

27

wing

27.1

paddock

28

bearing lever

29

swing shaft

30

Compensation cam

31

Main compensation cam

32

In addition to compensation cam

33

First follower

34

Second follower

35

balancer shaft

36

drive member

37

swivel

38

paddock

39

Balancing rotating mass

40

driven member

41

Double swing gear

42

double rocker

43

machine wall

44

housing wall

45

feed table

46

grab

47

Sheet holder

Claims (8)

Drive a vibration system, the bow to a feed drum ( 8th ), which together with at least one drive cam ( 19 ) and with at least one compensation cam ( 30 ) on a feed drum shaft ( 10 ), characterized in that additionally on the feed drum shaft ( 10 ) a compensation torque ( 39 ) is arranged, which by means of a double-ring gear ( 41 ) with the balance cam ( 30 ) connected is. Drive according to Claim 1, characterized in that the double-action transmission ( 41 ) from a drive member ( 36 ), a paddock ( 38 ) and an output member ( 40 ) consists. Drive according to claim 2, characterized in that the output member ( 40 ) as a compensation torque ( 39 ) is trained. Drive according to claim 2, characterized in that the drive member ( 36 ) together with one by means of cam rollers ( 33 . 34 ) at the one of a main compensation cam ( 31 ) and a secondary compensation cam ( 32 ) existing balance cam ( 30 ) running double rocker ( 42 ) on a balance shaft ( 35 ) are arranged. Drive according to claim 4, characterized in that the drive member ( 36 ) and the double rocker ( 42 ) are rotatably connected. Drive according to claim 1, 2 and 4, characterized in that the distance between the feed drum shaft ( 10 ) and the balance shaft ( 35 ) matches the length of the paddock ( 38 ). Drive according to claim 1 to 4 or 6, characterized in that the distance between the feed drum shaft ( 10 ) and one which is the transmission element ( 38 ) with the compensation torque ( 39 ) connecting swivel joint ( 37 ) coincides with the length of the drive member ( 36 ). Drive according to claim 1 or 3, characterized in that the compensation rotational mass ( 39 ) rotatable on the feed drum shaft ( 10 ) is arranged.