EP2079587B1 - Drive assembly for a sleeve housing device in a magazine - Google Patents

Abstract

A system for changing sleeves that can be pushed onto ink transfer roller cores of a printing machine includes at least one magazine, at least one travel device, and a drive. The magazine includes at least one sleeve mounting device that is movable relative to a frame of the magazine. The travel device is connectable to the magazine so that the magazine is movable in the vertical and/or horizontal direction. The drive, which is a component of the travel device, provides a drive force or drive torque to move the sleeve mounting device relative to the frame of the magazine.

Description

The invention relates to a system for changing on Farbübertragungswalzendorne slidable sleeves.

In various printing presses, it is not necessary to replace the complete ink transfer rollers involved in the printing process, if the printing press has to be prepared for a follow-up order, for example. Such printing machines are often equipped with at least single-mounted paint transfer roller mandrels in setting. On these mandrels, sleeves that carry, for example, the actual print motif, be postponed and deducted from these again. In this case, several sleeves can be pushed over each other, wherein the inner sleeves are referred to as adapter sleeves. In the context of the invention, ink transfer rollers are to be understood as meaning all rollers which transport a fluid, in particular printing ink, necessary for printing in the printing process. In flexographic printing, these are the anilox rollers and the format cylinders bearing the print motifs.

The sleeves of the ink transfer rollers can be very heavy and must be pushed partially high altitude on the respective mandrels. Therefore, the Applicant's patent application suggests DE 101 12 522 A1 to use a magazine with trained as a support mandrel sleeve receiving devices for the transport of the sleeves to the printing press. This magazine is equipped with wheels so that it can be moved without any other technical aids. The magazine can be laterally attached to a lift couple, so that it can be raised and lowered with this. With this system, a sleeve can be raised to the level of the ink transfer roller on which the sleeve is to be pushed. Likewise, a sleeve receiving device can be raised to the height of a sleeve equipped with a color transfer roller to pull off the sleeve of the ink transfer roller mandrel and transported away.

The Applicant's Patent Application DE 102 23 414 A1 is another example of such a system, in which the magazine can be coupled to a traversing device. With this traversing device, the magazine can be moved in a vertical and / or horizontal direction to position the sleeve receiving means of the magazine relative to the printing press such that the axis of the sleeve, when carried by the sleeve receiving means, with the axis of the up or to be equipped Farbübertragungswalzendomes aligned. In an embodiment of the magazine shown therein, the sleeve receiving means are movable relative to the magazine. For this purpose, the sleeve receiving devices are arranged on a disc which is rotatable within the magazine.

The disk is rotatable by a motor mounted in the magazine frame to position the sleeve receptacles with respect to the ink transfer mandrels.

Since multiple magazines are often used to set up a printing press, equipping each magazine with a drive adds up to a high cost.

The object of the present invention is therefore to propose a generic system for changing push-on color transfer roll mandrels pens, which is inexpensive to purchase and in operation and easy to use.

According to the invention, this object is solved by the features of the characterizing part of claim 1. Accordingly, it is intended that the drive is part of the moving device and is not included in the magazine. In this case, an operative connection between the drive and the sleeve receiving device, which is mounted in the magazine and is movable relative to this, can be produced. The drive is in operative connection with the sleeve receiving means for moving the same when the magazine is coupled to the traversing device. In this way, a single drive can be provided, whereas several magazines are usable, all without their own drive. To position the sleeve receiving device in front of a Farbübertragungswalzeldorn the drive must be accurately positioned. A corresponding control and regulation of the drive can be realized more cost-effectively, if the drive, as described, remains in the field of printing press.
Also, the magazine, which is advantageously provided with wheels, easier to move, since compared to the magazine, which is known from the prior art, the weight of the drive is eliminated. Another advantage of such a magazine is that at least one empty sleeve receiving device can first be positioned in front of an equipped ink transfer roller. After removing the relevant sleeve now only a sleeve receiving device of the magazine and not the moving device needs to be moved to position the new aufzuschiebende sleeve in front of the mandrel.

In an advantageous development of the invention, the drive comprises a motor, for example an electric motor, on whose rotor shaft a drive pinion is attached. The torque provided by such a motor can be removed from components arranged on the magazine, for example a rack which is in engagement with the teeth of the traveling device when the magazine is coupled to the traversing device.

It is particularly advantageous if the magazine for picking up the torque comprises a toothed wheel which meshes with the pinion when the magazine is coupled.

Advantageously, the gear is mounted on a shaft with which the torque is forwarded. In magazines, the torque may be needed at a location remote from the location where the gear and pinion mesh. The transmission of torque is easiest to accomplish with such a shaft.

In an advantageous embodiment of the invention, the at least one sleeve receiving device is attached to a disc which is rotatably mounted in the frame of the magazine. By means of such a disk can be, starting from the shaft, which is acted upon by a torque, move the sleeve receiving device in a simple manner. For this purpose, only the disc must be equipped, for example with a drive gear, which is connected via suitable transmission means, such as a drive chain, with the shaft.

Fig. 1:

Seitenansicht eines erfindungsgemäßen Systems, bevor das Magazin zum Ankoppeln positioniert wurde.

Fig. 2a:

Seitenansicht eines erfindungsgemäßen Systems, nachdem das Magazin zum Ankoppeln positioniert wurde.

Fig. 2b:

Vergrößerung des Inhalts der Ellipse in Fig. 2a

Fig. 3a:

Seitenansicht eines erfindungsgemäßen Systems, nachdem das Magazin an die Verfahreinrichtung angekoppelt wurde

Fig. 3b:

Vergrößerung des Inhalts der Ellipse in Fig. 3a

Fig. 4:

Sicht auf den Schnitt IV-IV in Fig. 1

Fig. 5:

Detailansicht einer Ver- und Entriegelungseinrichtung

Fig. 6:

Sicht auf den Schnitt VI-VI in Fig. 5

Fig. 7:

Sicht auf den Schnitt VII-VII in Fig. 3a

Fig. 8

Sicht wie in Fig. 7, jedoch mit abgeschwenktem Magazin.

Further embodiments of the invention will become apparent from the description and the claims.
The individual figures show:

Fig. 1:

Side view of a system according to the invention before the magazine has been positioned for docking.

Fig. 2a:

Side view of a system according to the invention after the magazine has been positioned for docking.

Fig. 2b:

Increase the content of the ellipse in Fig. 2a

Fig. 3a:

Side view of a system according to the invention after the magazine has been coupled to the traversing device

3b:

Increase the content of the ellipse in Fig. 3a

4:

View of the section IV-IV in Fig. 1

Fig. 5:

Detail view of a locking and unlocking device

Fig. 6:

View of the section VI-VI in Fig. 5

Fig. 7:

View of the section VII-VII in Fig. 3a

Fig. 8

View as in Fig. 7 , but with the magazine swung away.

The Fig. 1 shows a side view of an inventive system 1, which comprises a magazine 2 and a traversing device 3.

The magazine 2 is equipped with wheels 4 so that it can be moved on the indicated floor 5. The wheels 4 are arranged below a base frame 6. On the base frame, a support frame 7 is placed, which is composed of several individual parts, for example, welded together is. In the support frame 7, a turntable 9 is rotatably supported via a bearing 8. At the hub 9 a plurality of rod-shaped sleeve receiving devices 10 are fastened at one end, which are often referred to as support pins. By way of example, a sleeve 12 which can be pushed onto a dye transfer roller mandrel and which is pushed onto the sleeve receiving device 11 for transport to the printing press is illustrated.

The hub 9 is connected via geared means with a shaft 21 which extends to outside of the support frame 7. Such gear means may be gears or gear / chain combinations. At the extending beyond the side of the support frame 7 out end of the shaft, a gear 22 is fixed. A loading of the gear 22 with a torque thus leads to a total rotation of the turntable 9, so that in this way the sleeve receiving devices 10, 11 can be moved relative to the magazine. The gear 22 is fixable in a defined angular position in a manner described below.

At the upper edge of the support frame 7 of the magazine 2, a transverse frame 13 is fixed to the turntable 9 on the opposite side, to which in turn support bolts 14 are attached, of which only one is visible. At the end facing away from the magazine 2 end of the support pin 14 are mounted in comparison to these enlarged in cross section plates 15, so that support pin 14 and plate 15 together form a hook. Bolt and plate can also be made in one piece. The entire magazine 2 can be lifted off the floor 5 via the support bolts 14.

The traversing device 3 comprises a pedestal 25, which serves inter alia to drive the operating personnel in front of the printing unit of the printing press 23 to be equipped. From the printing machine 23 is in the FIG. 1 an example of a single ink transfer roller mandrel 24 shown schematically. For this purpose, the pedestal 25 is movable for example by a crane. By way of example, the crane may comprise a rail (not shown in detail) running in front of the printing press, on which slides which can be displaced in the horizontal direction run. These slides can be equipped with lifting devices which engage the pedestal and with which the pedestal can be raised and lowered in the vertical direction.

On the pedestal 25, a protective grid 18 is provided. In addition, a front wall 16 is fixed to the pedestal, which extends perpendicular to the standing surface 17 of the pedestal 25. Instead of the wall 16, a frame, which consists for example of different profiles, can be provided. At the upper end of the wall 16 are not visible, upwardly open receptacles provided which can receive the support pin 14 of the magazine 2, wherein the plates 15 engage behind the wall, so that a total of the coupling prevents movement of the magazine 2 relative to the traversing device becomes. For coupling the magazine 2, this is positioned to the traversing device, that the plates 15 as seen from the side to reach behind the wall. This situation is in the FIGS. 2a and 2b shown. Then either the traversing device 2 and / or the magazine 3 is moved so far until the bolts 14 are positioned vertically above the recordings. Then the traversing device is lifted until the support bolts 14 have been taken up by the receptacles (see FIGS. 3a and 3b ).

On the wall 16, a drive motor 19, for example, an electric motor, attached. In the embodiment shown, the motor is mounted on the inside of the wall, wherein the drive shaft of the drive motor 19 engages through the wall 16 therethrough. On the side facing away from the motor 19 of the wall, a pinion 20 is mounted on the drive shaft. The angular position of the motor 19 is adjustable, so that the pinion can be brought into a defined angular position, in the the teeth of the pinion 20 and the teeth of the gear 22, which is set in Ankoppelvorgang in a defined angular position, can engage in one another without colliding. After coupling the magazine 2 to the traversing device 3, the disk 9 can thus be rotated by the rotation of the drive motor 19. By suitable movement, at least one of the sleeve receptacles 10, 11 can be positioned in front of the ink transfer mandrel 24 such that the axis of the sleeve, when resting on the sleeve receptacle, is aligned with the axis of the ink transfer mandrel 24. In this case, the sleeve 12 can be moved back and / or forth by means of a simple axial displacement between the sleeve receptacle 11 and the ink transfer roller mandrel. The movement of the sleeve receiving devices 10, 11 may include a lifting and / or lowering movement, a movement in the horizontal direction orthogonal to the axes of the Farbübertragungswalzendorne 24 and a rotational movement of the hub 9.

The Fig. 4 shows the view IV - IV from the FIG. 1 , wherein like components bear like reference numerals. The front side of the magazine 2 to be seen in this view is open, so that the sleeve receiving devices 10 can be equipped with sleeves from this side and the sleeves can be removed. The hub 9 carries the sleeve receiving devices 10 in part via tabs 27th

The torque transmission from the shaft 21, which is not visible in this view, to the hub 9 via a chain 26. Equally well a timing belt or gears could be provided at this point.

The FIG. 5 shows a locking and unlocking device, with which the movement of the hub 9 can be prevented or made possible. For this purpose, an additional disc 28 is fixed on the shaft 20, in which a radial bore is introduced. Such a bore could also be incorporated in another component connected to the shaft or in the shaft 21 itself. In this hole, a locking pin 29 is inserted, in the circumferential direction the disc 28 is immovably connected to the support frame 7. As a result, a rotation of the shaft and thus ultimately the hub 9 is prevented. For this purpose, the locking pin 29 is attached to a lever arm 30 which is rotatably mounted in a bearing 31. On the lever arm 30, a spring 32 which is connected at one of its ends in a manner not shown also with the support frame 7 and which acts on the lever arm with a radially directed to the shaft force. In this way it is ensured that the locking pin 29 does not accidentally slip out of the hole. If now the turntable to be rotated, so only a directed against the spring force force must be applied, which moves the lever arm 30. Thus, the locking pin 29 is completely pulled out of the bore and a rotation of the hub 9 is possible.

In order to unlock the turntable 9 now after coupling the magazine 2 to the traversing device 3, a pivot arm 33 is pivotally mounted on the not shown in this figure wall 16 of the shuttle 3. This swivel arm carries two pins 34 which extend into the magazine 2 and grasp the lever arm 30 between them when the magazine 2 is coupled to the traversing device 3. A pivoting of the pivot arm 33 thus also leads to the pivoting of the lever arm 30 of the magazine 2 and thus to the unlocking of the hub 9. Since with the coupling and the drive motor 19 via the pinion 20 and the gear 22 with the hub 9 is in driving connection, a Sleeve receiving device can be positioned by the drive motor 19. For pivoting the pivot arm 33, a piston-cylinder unit 35 is provided, the piston engages the pivot arm 33 and is rotatably mounted in the wall 16 by means of a screw. For pivoting but also any other suitable actuator can be provided.

The FIG. 6 shows again the locking and unlocking device viewed from above (View VI - VI FIG. 5 ). In this view, it can be seen that the pins 34 engage around the lever arm on the right and left.

The FIG. 7 shows a plan view of the inventive system (view VII-VII in Fig. 3 ). In this figure it can be seen that on the wall 16 of the shuttle a holding plate 37 is mounted, which has a vertical bore through which a bolt 38 is feasible, which is thus also aligned vertically. This bolt 38 engages in an introduced into the support frame 7 of the magazine 2, not visible in this figure bore. Now, if the magazine 2 disconnected by lowering the shuttle 3 of the latter, the bolt 38 remains in the bore of the support plate 37 and in the bore of the support frame 7, so that despite decoupling the magazine can not be completely removed from the shuttle. Rather, the magazine 2 can now be pivoted about the bolt 38 of the shuttle 3 (see FIG. 8 ). It is therefore intended to arrange the wheels 4 rotatably about their vertical axis on the base frame 6 of the magazine 2. Take the sleeve receiving devices now at least one angle at which their axes are parallel to the wall 16, the magazine can be equipped with sleeves 12, or it can be removed sleeves. The advantage of such a pronounced system is that 2 sleeves can be fed or removed directly from the printing press magazine. These sleeves can then be transported with a small and lightweight transport device. In addition, a sleeve change in the magazine is made possible in this way without the magazine has to be repositioned and aligned for re-coupling to the shuttle, which otherwise costs unnecessarily much time. LIST OF REFERENCE NUMBERS 1 System for changing sleeves which can be pushed onto paint transfer rollers 2 magazine 3 traversing 4 wheel 5 ground 6 base frame 7 supporting frame 8th camp 9 turntable 10 Sleeve mounting device 11 Sleeve mounting device 12 shell 13 crossbeam 14 support bolts 15 plate 16 wall 17 standing area 18 guard 19 drive motor 20 pinion 21 wave 22 gear 23 press 24 Ink transfer roller mandrel 25 podium 26 Chain 27 flap 28 disc 29 safety pin 30 lever arm 31 camp 32 feather 33 swivel arm 34 pen 35 Piston-cylinder unit 36 screw 37 Retaining plate 38 bolt

Claims (11)

1. System (1) for changing sleeves (12) that can be mounted on ink transfer roller cores (24) of a printing machine (23), comprising:

   • at least one magazine (2), which includes at least one sleeve mounting device (10, 11), in which the sleeve mounting device (10, 11) can be moved relative to frame (6, 7) of the magazine (2), and

   • at least one travel device (3), on which the magazine (2) can be connected, and with which the magazine (2) can be moved in the vertical and/or horizontal direction, and

   • at least one drive (19), with which a drive force or drive torque can be furnished to move the sleeve mounting device (10, 11) relative to frame (6, 7) of magazine (2),

   characterized by the fact that
   the drive (19) is a component of the travel device (3) and can be brought into effective connection with the sleeve mounting device (10, 11) of magazine (2).
2. System (1) according to claim 1,
   characterized by the fact that
   the drive (19) is a motor, on whose rotor shaft a drive pinion (20) is fastened.
3. System (1) according to claim 2,
   characterized by the fact that
   the magazine (2) includes a gear (22), which meshes with the drive pinion (20) of drive motor (19) when the magazine (2) is connected to the travel device (3).
4. System (1) according to claim 3.
   characterized by the fact that
   the gear (22) is fastened to a shaft (21), whose rotation causes movement of the sleeve mounting device (10, 11) relative to magazine (2).
5. System (1) according to claim 4,
   characterized by the fact that
   at least one sleeve mounting device (10, 11) is fastened to a disk (9) mounted to rotate in the frame of magazine (2).
6. System (1) according to claims 4 and 5,
   characterized by the fact that
   the shaft (21) transfers a torque to the disk (28) via torque transmission means.
7. System (1) according to one of the preceding claims,
   characterized by the fact that
   a locking device is provided, with which movement of the sleeve mounting device (10, 11) relative to magazine (2) can be avoided.
8. System (1) according to claim 7,
   characterized by the fact that
   the locking device includes a pin (34), which can engage in a hole made in a component of the magazine (2), which participates in transfer of the drive force furnished by the drive.
9. System (1) according to claim 8,
   characterized by the fact

   - that the pin (34) is mounted to pivot on the frame of magazine (2) by means of a lever arm (30), and

   - that the lever arm (30) can be acted upon with a spring force (32) in the direction toward the hole.
10. System (1) according to one of the claims 7 to 9.
    characterized by the fact that
    the travel device (3) includes an adjustment device, which can be connected to the locking device, and with which locking of the sleeve mounting device (10, 11) can be eliminated.
11. System (1) according to claim 10,
    characterized by the fact that
    the adjustment device includes a piston-cylinder unit (35), whose piston rod acts on two pins (29) that enclosed the lever arm (30) of the locking device.

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