DE102008041564B3 - Roll changer for printing machine, has receiving tray arranged at adhesive frame, where deviation plate is provided at frame or at receiving tray for giving material web to receiving tray, and winding bar is arranged in receiving tray - Google Patents

Abstract

The roll changer (1) has two roller carrier arms (2, 3) for receiving material rolls (4, 7), respectively. A receiving tray (11) is provided for receiving a material web (6), which winds up after a flying roll change of the material roll (7). The receiving tray is arranged at an adhesive frame (8). A deviation plate (12) is provided at the adhesive frame or at the receiving tray for giving the material web to the receiving tray, where a rotatable winding bar is arranged in the receiving tray. A suction or clamping device is provided for introducing the web into the receiving tray.

Description

The The invention relates to a roll changer with a device for controlled catching and winding up a remainder of an expired roll of material in the flying role change according to the features of the claim 1.

By the DE 10 2005 016 467 A1 the sequence of a flying reel change with changing production is known. Here, material webs are joined together while the printing press is running in order to be able to continue a production process substantially uninterrupted with a new material web. The web beginning of a not yet completely used rest roll, which may still be used for further productions is wound after the roll change by opposing drive of the roll carrying the remaining role and connected by an adhesive to the surface of the residual role.

There after the flying roll change the expired roll of material does not come to a standstill immediately becomes of this material role as long as the web uncontrolled unwound until the remaining sleeve in the Standstill was slowed down. At today's machine speeds this can be a residual flag of about 4 m in length, which is uncontrolled and loose in the area of the roll changer "flutters". A rest banner is too then present when the residual roll is substantially completely unwound was and no longer for a later one Use is to be kept, because the flying role change can the running web before activating the new roll of material never completely complete be handled by the remaining role.

The DE 103 54 847 A1 relates to a device for winding material strips not intended for processing by means of a winding element.

The DE 20 2006 000 397 U1 discloses a roll changer having a guide roll for feeding a web, wherein a take-up connecting device is arranged next to the guide roll.

From the FR 2 210 140 A5 is known a winding device for an end of a material web.

The DE 691 05 084 T2 shows a device for detecting a web start.

Of the Invention is based on the object, a roll changer with a Device for the controlled catching and winding of a remainder of a to create an expired material roll during the flying roll change, the web after the roll change is no longer uncontrolled on Role changer flutters around and possibly jammed or triggers any safety devices.

The The object is achieved by the Characteristics of claim 1 solved.

The particular advantages of the invention are that the material web after the roll change no longer uncontrolled on Role changer flutters around and possibly jammed or triggers any safety devices.

A Remaining flag of an expired roll of material is immediately after the Bahnabschlag held in a device and there until the Standstill of the roll of material caught. After the standstill of the expired Roll of material is a Rollenarmverdrehung, preferably so, that between the expired roll of material and the device to catch a residual flag the shortest possible distance remains. While the Rollenarmverdrehung takes place a drive of the roller cone of expired roll of material to the rest of the flag at low moment wind. Subsequently is the entire remainder of the flag while pulling out of the Device rewound on the remaining roll and preferably the beginning of the web is fixed to the rest of the roll.

Farther becomes a damage-free Catching and rewinding the remaining flag on the running roll of material allows.

With The invention is preferably a re-controlled exact shape / accurate rewinding the remaining flag portion allows for the roll of material.

One Reel changer comprises a device for catching the remaining flag after the flying reel change to standstill of the expired roll of material.

The Device for catching the rest of the flag is designed as a collection basket be, which is arranged on a glue frame.

In another not covered by the scope of the patent embodiment the device for catching the remaining flag can be a collecting spindle be, which is arranged on a pulley of the roll changer is and is adjustable to this.

embodiments The invention are illustrated in the drawings and are in Following closer described.

It demonstrate:

1 a roll changer in a schematic side view with a first embodiment of a device for catching the remaining flag;

2 a detailed view of the device according to 1 in various design variants a), b), c) and d);

3 a roll changer in a schematic side view with a second embodiment of the device for catching the remaining flag;

4 a detailed view 3 ,

In 1 is a well known reel splitter 01 with a first roll carrying arm 02 and a second roll carrying arm 03 shown. Shown is the situation, just before a flying role change takes place in the known manner. A web of material on the first roll carrying arm 02 stored new roll of material 04 comes with a running material web 06 one on the second roll carrying arm 03 stored running material roll 07 connected in a known manner. The roller carrying arms 02 ; 03 are pivoted to the adhesive position shown. The running material web 06 (which after the roll change a remaining flag 06 forms) is in this position close to the new roll of material 04 guided along. An adhesive frame 08 gets to the new roll of material 04 hired. Upon detection of an adhesive label on the new roll of material 04 or a comparable, the adhesive process triggering label, the running material web 06 pressed against the adhesive roll and at the same time separates a beater 09 the running material web 06 from. The rest of the banner is created 06 ,

On the adhesive frame 08 is a first preferred embodiment of a device 11 to catch a remnant banner 06 namely a collection basket 11 intended. At the collecting basket 11 is preferably a deflector 12 arranged. The deflector 12 directs the rest of the banner 06 directly into the collection basket 11 , At the discharge plate 12 or at the collection basket 11 For example, a suction or clamping device can be provided for this purpose.

In 2 are schematically some design options of the collecting basket 11 shown.

According to 2a) becomes the remaining flag 06 loose around a core 13 wound. The core 13 is preferably equipped with a rotatable drive.

According to the 2 B) and c) is in the collection basket 11 a rotatable winding bar 14 provided to which on further rotation (arrow 16 ) the rest of the banner 06 wraps around ( 2c) ).

2c) shows the winding bar 14 a little over a turn later than when 2 B) ,

In the embodiment according to 2d) an unordered recording of the remainder flag takes place 06 in the collection basket 11 , The collection basket 11 has in this case an outlet opening, a guided exit of the remaining flag 06 in the direction of a downstream free catchment area. The collection basket 11 So it forms a buffer for a certain section of the rest of the flag 06 and a guide for the transfer of the remaining flag 06 into a secured catchment area.

3 shows the same reel splicer 01 , as in 1 shown. Like numbers have the same meaning as in FIG 1 , As a device 18 to catch for the rest of the banner 06 Here is one to a pulley 17 the roll changer 01 adjustable collecting spindle 18 intended.

4 shows this embodiment as a schematic detail view of the collecting spindle 18 , At the moment the Bahnabschlages becomes the collecting spindle 18 , preferably tangentially to the deflection spindle 17 Employed (dashed line).

The collecting spindle 18 is rotatably mounted and preferably has its own rotary drive. On the surface of the collecting spindle 18 can be provided drivers, in which the material web 06 Hooked, then to the collecting spindle 18 to be wrapped. In this embodiment, the falling tail must first 06 be deflected so that they are around the collecting spindle 18 can be wound.

Alternatively, it is also possible that the collecting spindle 18 only works as a leading role and the rest of the flag 06 in turn leads into a secure catchment area, as in 4 is shown.

• – Verbinden einer von einer Materialrolle 07 ablaufenden Materialbahn 06 mit einer neuen Materialbahn einer neuen Materialrolle 04;
• – Abtrennen der ablaufenden Materialbahn 06 von der neuen Materialbahn;
• – Ableiten einer Restfahne 06 der abgetrennten Materialbahn 06 in eine Vorrichtung 11; 18, bis die Materialrolle 07 in den Stillstand abgebremst wurde;
• – Verdrehen der Rollentragarme 02; 03;
• – Aufwickeln der Restfahne 06 auf die Resthülse durch Antrieb eines Rollenkonus.

The device for the controlled catching and winding up of a remaining flag 06 an expired roll of material 07 in the flying role change in a reel changer 01 with at least two roller-carrying arms 02 ; 03 , includes the following features:

• - Connect one of a roll of material 07 running material web 06 with a new material web of a new roll of material 04 ;
• - Separating the running material web 06 from the new material web;
• - Deriving a remainder flag 06 the separated web 06 into a device 11 ; 18 until the roll of material 07 was slowed down to a standstill;
• - twisting the roller support arms 02 ; 03 ;
• - winding up the remaining flag 06 on the remaining sleeve by driving a roller cone.

Preferably, a length of the residual flag 06 and a necessary number of revolutions of the remaining sleeve determined.

01

reelstands

02

support arm

03

support arm

04

Roll of material, New

05

06

Web, rest flag

07

material roll

08

adhesive frame

09

Schlagmesser

10

11

Contraption, catch tray

12

deflector

13

core

14

wrap fin

15

16

rotation arrow

17

idler pulley

18

Contraption, collecting spindle

Claims (2)

Roll changer ( 01 ) with at least two roller support arms ( 02 ; 03 ) for receiving a roll of material ( 04 ; 07 ), where the roll changer ( 01 ) a device ( 11 ; 18 ) to catch a remainder flag ( 06 ), which after a flying roll change from a running roll of material ( 07 ), the device ( 11 ) to catch the rest of the flag ( 06 ) a collecting basket ( 11 ) which is attached to an adhesive frame ( 08 ) of the roll changer ( 01 ) is arranged, wherein on the adhesive frame ( 08 ) or on the collection basket ( 11 ) a discharge plate ( 12 ) to turn the rest of the flag ( 06 ) into the collecting basket ( 11 ) is provided, wherein in the collecting basket ( 11 ) a rotatable winding bar ( 14 ) is arranged. Reel changer according to claim 1, characterized in that further comprises a suction or clamping device for introducing the remaining flag ( 06 ) into the collecting basket ( 11 ) is provided.