EP1505029B1 - Folding device with a first and a second partial cylinder - Google Patents

Abstract

The folding device has a first partial cylinder (01) and a second partial cylinder (02), which together form a cylindrical body. The partial cylinders can rotate relative to each other, and each has two groups of function elements round the circumference. Each partial cylinder has its own drive motor (17, 26) to rotate it.

Description

The invention relates to a folding apparatus with a first and a second partial cylinder according to the preamble of claim 1.

Such a folding apparatus generally has a folding or transport cylinder, each having a group of functional elements such as puncture strips or sheet gripper for holding paper to be processed on the cylinder and as a second group of functional elements a folding blade, which cooperates with folding rollers or with a Falzklappe another cylinder creates a fold on the conveyed on the folding cylinder paper.

To process papers in different formats or to be able to produce different folds, the functional elements which serve to hold the paper to be processed on the one hand, and the folding blades on the other hand mounted on different sub-cylinders with respect to each other in relation to each other a certain freedom of rotation with respect to one another have on the axis of the folding cylinder.

DE 197 55 428 A1 and DE 295 02 222 U1 disclose folding cylinders, each having two mutually rotatable folding mechanisms bearing cylinder body.

Post-published EP 1 264 689 A2 and EP 1 260 474 A1 describe folding devices with cylinder segments driven by different electric motors.

GB 1 194 451 shows a folding apparatus with a cylinder whose two partial cylinders are adjusted to one another by means of a hydraulic drive.

The invention is based on the object, a folder with a first and a to create second part cylinder.

The object is achieved by the features of claim 1.

An embodiment of the invention is illustrated in the drawings and will be described in more detail below.

Fig. 1

einen Schnitt II - II durch einen Zylinder und angrenzende Teile einer materialverarbeitenden Maschine gemäß der Erfindung;

Fig. 2

eine Frontalansicht des Zylinders aus Fig. 1;

Fig. 3

eine Form eines Falzapparates die nicht innerhalb des Bereichs der beanspruchten Erfindung füllt, aber nützlich für deren Verständnis ist;

Fig. 4

eine weitere Ausführungsform eines Falzapparates;

Fig. 5

eine weitere Ausführungsform eines Falzapparates;

Fig. 6

eine weitere Ausführungsform eines Falzapparates;

Fig. 7

einen Falzapparat für einen Querfalz;

Fig. 8

einen Querschnitt eines Falzapparates gemäß Fig. 7;

Fig. 9

einen Falzapparat für einen Querfalz mit einem Bändersystem;

Fig. 10

einen Querschnitt eines Falzapparates gemäß Fig. 9;

Fig. 11

einen Falzapparat für einen Querfalz mit einem Längsfalz;

Fig. 12

einen Querschnitt eines Falzapparates gemäß Fig. 11;

Fig. 13

einen Falzapparat für einen zweiten Querfalz und einem Längsfalz;

Fig. 14

einen Querschnitt eines Falzapparates gemäß Fig. 13.

Show it:

Fig. 1

a section II - II through a cylinder and adjacent parts of a material processing machine according to the invention;

Fig. 2

a frontal view of the cylinder of Fig. 1;

Fig. 3

a form of folder which does not fill within the scope of the claimed invention but is useful for its understanding;

Fig. 4

another embodiment of a folding apparatus;

Fig. 5

another embodiment of a folding apparatus;

Fig. 6

another embodiment of a folding apparatus;

Fig. 7

a folder for a transverse fold;

Fig. 8

a cross section of a folder according to FIG. 7;

Fig. 9

a folder for a transverse fold with a belt system;

Fig. 10

a cross section of a folder according to FIG. 9;

Fig. 11

a folder for a transverse fold with a longitudinal fold;

Fig. 12

a cross section of a folding apparatus according to FIG. 11;

Fig. 13

a folder for a second transverse fold and a longitudinal fold;

Fig. 14

a cross-section of a folding apparatus according to FIG. 13.

Fig. 1 shows an axial section through the cylinder and parts of the side plates of a frame of a machine in which the cylinder is inserted. The section runs along the dash-dotted line designated II-II in FIG.

The two partial cylinders 01; 02, from which the body of the cylinder shown in Fig. 1 is composed, in Fig. 1 respectively by different hatching, ascending for the sub-cylinder 01 and descending for the sub-cylinder 02, characterized. Partial cylinder 01 includes a central shaft 13 which on one side, the left in Fig. 1, via a bearing 14, for. B. a rolling bearing 14, is supported in a side frame plate 16 of a folder. The central shaft 13 is drivable by a first drive motor 17, whose housing is connected via a flange 18 fixed to the side frame plate 16. Two fixed to the central shaft 13 arms 19 carry a cylinder segment 21, which forms part of the peripheral surface of the cylinder and a functional element of a first group, for. B. carries a holding element, in particular a bar, not shown with Punkturnadeln or at least one gripper.

As can be seen in FIG. 2, the partial cylinder 01 has two pairs of arms 19 and two cylinder segments 21 which are diametrically opposed to one another. Of course, a larger number of cylinder segments 21 in the circumferential direction could be uniform be arranged distributed.

The opposite end of the central shaft 13 is by means of bearings 22, z. B. bearings 22, rotatably mounted in a cup 23, the part of the second part cylinder 02 is in turn via a bearing 24, for. B. Rolling bearing 24, rotatably supported on a second side frame plate 16. At the bottom of the cup 23 engages a drive shaft of a second drive motor 26, whose housing is fixed like that of the first drive motor 17 via a flange 18 on the side frame plate 16.

Cylinder segments 27 of the second part cylinder 02 are each of two radial arms 28; 29 carried by one arm 28 from the open edge of the cup 23 and the other arm 29 via a bearing 31, z. B. a rolling bearing 31 is rotatably supported on the central shaft 13. Each cylinder segment 27 carries a functional element, not shown, such as a folding blade.

The two drive motors 17; 26 are connected to a common control circuit which, for. B. by means of each of the drive motors 17; 26 arranged speed or angle sensors both drive motors 17; 26 to exactly the same rotational speeds and thus on a constant distance of the functional elements on the cylinder segments 21 and 27 controls.

According to a simple embodiment, the control circuit is connected to two arranged on the drive motor 17 and 26 rotation angle sensors which deliver a pulse to the control circuit for each completed rotation angle unit of the respective drive motor 17 and 26, and the control circuit is designed to the phase difference of To detect the pulse trains supplied to the two sensors and to keep constant at a predetermined value which can be set on the control circuit and which corresponds to a desired distance between the functional elements on the two sub-cylinders 01; 02 corresponds.

Instead of simple pulses can also be provided that the sensors each provide binary coded data words in a fixed, cyclic order. This allows the control circuit to detect and keep a phase shift between each identical data words from the two sensors, even if this time difference is greater than the period at which the data words are delivered.

It is obvious that the present invention is applicable to any type of functional elements on the sub-cylinders 01; 02 is applicable. The functional elements can on both sub-cylinders 01; 02 may be of different types or of the same type, they may be puncture needles or Punkturnadelleisten, sheet gripper, folding blade, jaws, ejector, Nachgreifer, cutting blades, etc.

The cylinder can be formed in a folder as folding blade cylinder, jaw cylinder or collecting cylinder.

In one example, the folder includes at least one cutting cylinder 35, a collection cylinder 36 and a jaw cylinder 37. The collecting cylinder 36 has two partial cylinders 39; 40, which are adjustable relative to each other in the circumferential direction. The first partial cylinder 39 is provided with at least one folding blade and the second partial cylinder 40 with punctures or grippers. This collection cylinder 36 transfers signatures to a jaw cylinder 37 (FIG. 3).

The jaw cylinder 37 is driven by a separate electric motor 05 of other cylinders mechanically independent. The folding blade bearing part cylinder 39 of the collecting cylinder 36 is driven by another electric motor 04. The other partial cylinder 40 carrying the punctures or grippers is replaced by another one Electric motor 03 driven by the cutting cylinder 35 is driven by the. For this purpose, a gears having gear is provided. A gear is connected to the puncture or gripper having partial cylinder 40, a second with the cutting cylinder 35 and a third with the rotor of the electric motor 03. The electric motor 03, cutting cylinder 35 and a sub-cylinder 40 of the collecting cylinder 36 are coupled to drive by means of gears, said the drive from the cutting cylinder 35 to the collecting cylinder 36 takes place. The cutting cylinder 35 associated with the electric motor 03 is disposed on one side of the folder, whereas the folding blade bearing part cylinder 39 of the collecting cylinder 36 and the jaw cylinder 37 associated electric motors 04 are arranged on the opposite side of the folder.

Instead of the gear coupling between the cutting cylinder 35 and the sub-cylinder 40 of the collecting cylinder 36, as shown in FIG. 4, a separate electric motor 06 (FIG. 4) is also provided for this sub-cylinder 40. Between cutting cylinder 35 and electric motor 03, a transmission gear can be arranged, wherein the electric motor 03 can be arranged offset in the axial direction of the cutting cylinder 35.

It is also possible to arrange the electric motor 03 of the cutting cylinder 35 coaxially with the cutting cylinder 35 (FIG. 5). In this case, the rotor can be connected without gear to the axis of the cutting cylinder 35 or it can be a front-mounted gear, in particular a planetary gear, can be arranged.

As shown in FIG. 6, between the collecting cylinder 36 and jaw cylinder 37, a further, two partial cylinders 51, 52 having folding cylinder 38 is arranged. Its first partial cylinder 51 has at least one folding blade and its second partial cylinder 52 has at least one folding flap. In this case, each of the partial cylinder 51; 52 from its own electric motor 07; 08 driven.

For all concentric to the axis of rotation of the associated cylinder / sub-cylinder arranged electric motors, the rotor of the electric motor may be connected directly to the axis of the cylinder or the motor may have a superposed gear, such as a planetary gear.

In a further embodiment (FIGS. 7 and 8), the folding apparatus has at least one paddle wheel 41, the paddle wheel 41 being driven by its own electric motor 42. To display the products from the paddle wheel 41, a belt system 44 is provided, as shown in FIGS. 9 and 10, which also has its own electric motor 46. A folding device optionally associated longitudinal folding device 47 is also driven by its own, independent of other cylinders electric motor 53, driven, as shown in Figures 11 and 12 can be seen. This longitudinal folding device 47 is used for the longitudinal fold (called the third fold or delta fold), which takes place after the transverse fold. The first fold is made by a longitudinal folding funnel, not shown. The second fold is made by a jaw cylinder 37 and 38 and the third fold is made by another, optional jaw cylinder 37 and 38. The third fold or the fourth fold is made by a Längsfalzmesser.

Each cylinder of the folder is powered by its own electric motor (03; 04; 05; 06; 07) which is geared to other cylinders.

In one embodiment, at least one electric motor of the folding apparatus is regulated as a function of a virtual leading axis of the printing machine, wherein at least one other electric motor is regulated as a function of this electric motor. So z. B. the electric motor 03 of the cutting cylinder 35 controlled by the virtual master axis of the printing press and an electric motor 04, 06 of the collecting cylinder 36 in response to the electric motor 03 of the cutting cylinder 35 regulated.

The control of a puncture and gripper needles holding system having partial cylinder 40 and the cutting cylinder 35 are interdependent. This means that the electric motor 06 of the puncture and gripper needles having holding system having partial cylinder 40 is controlled in dependence on the electric motor 03 of the cutting cylinder 35. Furthermore, the two partial cylinders 01, 02; 39, 40; 51, 52 regulated dependent on each other.

It is also possible in another embodiment to control all electric motors of the folder depending on a virtual master axis.

For each partial cylinder 01; 02; 39; 40; 51; 52, a fixing device is provided, as well as for each cylinder. In order to carry out maintenance work, the cylinders are fixed in a maintenance position relatively stationary to the frame. During operation, d. H. during the folding process, the two partial cylinders 01, 02; 39, 40; 51, 52 mechanically fixed to each other.

At least one electric motor 03; 04; 05; 06; 07; 08; 17; 26; 42; 46; 53 has a rotation angle sensor.

It is also possible, only during the adjustment process, one or both electric motors 04, 06; 07, 08; 17, 26 of the partial cylinder 01, 02; 39, 40; 51, 52 angular position-controlled operation. After the adjustment, the two partial cylinders 01, 02; 39, 40; 51, 52 mechanically fixed and at least the position control of the motor 04, 06; 07, 08; 17, 26 of a partial cylinder 01, 02; 39, 40; 51, 52 deactivated. The second electric motor 04, 06; 07, 08; 17, 26 can then be driven torque-controlled or decoupled.

LIST OF REFERENCE NUMBERS

01

partial cylinder

02

partial cylinder

03

engine

04

engine

05

engine

06

engine

07

engine

08

engine

09 to 12

-

13

Wave, central

14

Bearings, Rolling Bearings

15

-

16

Side frame plate

17

Drive motor, first

18

flange

19

poor

20

-

21

cylinder segment

22

Bearings, Rolling Bearings

23

cups

24

Bearings, Rolling Bearings

25

-

26

Drive motor, second

27

cylinder segment

28

poor

29

poor

30

-

31

Bearings, Rolling Bearings

32

-

33

-

34

-

35

Cutting cylinder, knife cylinder

36

collecting cylinder

37

jaw cylinder

38

folding cylinder

39

partial cylinder

40

partial cylinder

41

Cross fold paddle wheel, paddle wheel

42

engine

43

Querfalzauslage

44

belt system

45

-

46

engine

47

Longitudinal fold, third or fourth fold

48

-

49

folder delivery

50

-

51

partial cylinder

52

partial cylinder

53

engine

Claims (7)

1. A folder with a first and a second partial cylinder (01, 02; 39, 40; 51; 52) which jointly form a body of the cylinder and which are rotatable coaxially relative to each other and each of which carries a first or second group of functional elements distributed over the periphery of the cylinder, characterized in that a separate electric motor (03, 04; 04, 06; 07, 08; 17, 26) is associated with each partial cylinder (01, 02; 39, 40; 51, 52) in order to drive the partial cylinder (01, 02; 39, 40; 51, 52) in a rotary manner, at least one first electric motor of the folder is regulated in a manner dependent upon a virtual leading axle of a printing press, and wherein at least one other electric motor is regulated in a manner dependent upon the first electric motor or all the electric motors of the folder are regulated in a manner dependent upon a virtual leading axle.
2. A folder according to Claim 1, characterized in that the folder comprises at least one collecting cylinder (36) comprising partial cylinders (39, 40), one folding-jaw cylinder (37) and one cutting cylinder (35).
3. A folder according to Claim 2, characterized in that the cutting-blade cylinder (35) and the collecting cylinder (36) are driven by a common electric motor (03).
4. A folder according to Claim 2 or 3, characterized in that a fixing device is provided for each partial cylinder (01, 02; 39, 40; 51, 52), and likewise for each cylinder.
5. A folder according to Claim 1, characterized in that the cylinders are capable of being fixed in a maintenance position in a relatively stationary manner with respect to the stand.
6. A folder according to Claim 1, characterized in that the two partial cylinders (01, 02; 39, 40; 51, 52) are fixed mechanically with respect to each other during the operation, i.e. during the folding procedure.
7. A folder according to Claim 1, characterized in that the folder has at least one fly (41), and the fly is driven by a separate electric motor (42).

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