EP1048599A2 - Device for feeding a continuous material to a printing machine - Google Patents

Abstract

The device includes one or more adhesive heads (9, 12) associated with an enveloping curve (34) so that the material webs (1 can be connected either side of the supply reel (24). The swivel axes (11, 14) of the adhesive heads are mounted outside of the curve. The adhesive heads each comprise a contact pressure roller (10, 13). Independent claims describe method for connecting mate webs, a roll changer as well as a rotary printer fitted with same.

Description

The invention relates to a device for feeding a continuous Material to a printing press, such as a commercial or a Newspaper rotation.

US 5,468,321 discloses an apparatus and method for connecting two Material webs. A method and connection for connecting two are disclosed Lanes that are transported lying on one level. For the purpose of connecting the Lanes are placed one above the other in one level and along at the same time a cutting line separated. Then, at least on one side of the web Adhesive tape applied at the point where the two webs are connected become. A first contact surface is assigned to the new path, while the exhausted one Web is assigned a second contact surface of identical web width. The part of the new material web, which is located downstream of the dividing line, is in one Distance to the exhausted material web. By pressing each lane, i. e. the new and the exhausted web, a correct gluing of the webs with each other realized.

US 4,645,554 discloses an apparatus and method for connection successive material webs by means of an adhesive which is on a predetermined side of one of the webs is attached.

An apparatus and method for connecting the trailing end of a first with the leading end of a second material web, for example for one Web-fed rotary printing press includes a memory, suction boxes and each other spaced-apart guide roller which can be set against one another while they are are braked and devices for dispensing an adhesive strip, whichever is applied to the same top of the material web.

US 4,738,739 discloses a device for connecting two material webs or Strips of material and a method for operating the device.

In semi-automatic mode, the opposite ends become two Material webs connected to each other, the device required for this is adjustable. One of the two material webs to be connected to one another is almost exhausted, the other being the new material web to be fed and the connection of the both with an adhesive tape or an adhesive strip, which is only applied to one side. The device according to the invention comprises two Pressure rollers, cutting knives and loose guide rollers, whereby the material web either paper or some other material suitable for printing can.

US 5,762,283 discloses a method for preparing a web start on a Paper roll in a roll changer and on a web feed device.

The method and the device for preparing a web start on a roll in a reel changer comprises the reception of a paper reel from a Paper roll magazine. A cradle is integrated in a frame and it adhesive is taken from an adhesive roll with the one taken up on the paper roll Brought material into contact. After that, the material supply is removed from the paper roll unwound and wound up on a new roll. Then the new train with the End of the old sheet in the area of the applied adhesive tape and then the exhausted web from that on the exhausted roll core remaining rest separately. The reel changer is equipped with devices in particular with receptacles in which a paper roll is accommodated can be, so that the paper roll according to the previously described method can be moved within the reel changer.

EP 0 578 956 B1 discloses a device for connecting two paper webs.

In this device for connecting a beginning of a paper web to a rotating one Reserve paper roll with a moving paper web of a residual paper roll in one automatic reel changers of a web-fed rotary printing press are from one Rest position swiveling out support frame with mounted on rotary axes double-armed lever provided, which are pivotable at an angle to a Apply the adhesive roller to the reserve paper roll. The guide roller can be in the opposite direction perform a compensatory movement, with the support frame in a preparation position can be brought, the adhesive roller in the first lever arm of the double-armed lever second lever arm of the double-armed lever a movable about its longitudinal axis Guide roller are included. Touch in the working position and the preparatory position both the adhesive roller and the guide roller at the same time the moving Paper web of the residual paper roll. The solution presented in EP 0 578 956 B1 stands out characterized in that the double-armed lever with one to produce a Swiveling movement of the double-armed lever serving on the support frame supporting working cylinder acting on the double-armed lever and the guide roller has a fixedly arranged in the axial direction on its circumference Knife bar, and that the guide roller also with the knife bar around her Longitudinal axis is pivotable by means of a working cylinder articulated on levers.

In view of the prior art solutions shown, it is the task of present invention, a roll changer for receiving printing material rolls to be designed in such a way that by means of an adhesive head web sections regardless of The direction of rotation of the paper rolls can be connected.

According to the solution according to the invention comprises a device for connecting Material webs in a roll changer a supply roll and an exhausted roll, which are both unwound, with both roles from a support frame be recorded, which is rotatable about its support frame axis and at least one Adhesive head is assigned to an envelope, the at least one adhesive head being one Can perform web gluing on both sides of a corresponding supply roll. With the Solutions according to the invention have a number of advantages, such as the execution of rail connections regardless of the direction of rotation of the exhausted Paper roll and regardless of the direction of rotation of the supply roll still to be processed Material web. The corresponding direction of rotation of the newly introduced in the reel changer The supply roll determines the activation of the appropriate adhesive head for execution a web glue.

According to further advantageous refinements of the one on which the invention is based The idea is that the axes of rotation of the adhesive heads are each rotatable on the outside Support frame mounted storage roll arranged. Thus a free movement of the extreme diameter of the supply roll during transport into the for gluing suitable operating position guaranteed. Each of the adhesive heads comprises a pressure roller and a cutting knife to ensure correct web connection and severing of the remaining material web rest to be able to perform. The exhausted roll of paper and the new supply roll is both taken up by a rotating support frame, the full diameter of the supply roll when the support frame rotates about its The envelope, outside of which the adhesive heads are rotatably supported, certainly. To prevent the new web to be unwound from that support frame an upper and a lower guide roller are attached to this Guide the web around the support during the twisting movement thereof and in Avoid contact with stationary surfaces.

According to a first alternative embodiment of the solution according to the invention, a first Adhesive head of the roll changer in its active position opposite a first side of one Supply roll swivels when the supply roll rotates in a first direction of rotation. It is Doesn't matter if the exhausted paper roll goes towards this first one Direction of rotation rotates or rotates in the opposite direction in a second direction.

According to a second alternative embodiment of the solution according to the invention, a second adhesive head of the roll changer according to the invention in its active position second side of a supply roll are pivoted opposite when the Supply roll rotates in the direction of a second direction of rotation. This one too It is irrelevant in the embodiment in which direction of rotation the exhausted Paper roll rotates.

• das Verdrehen einer Vorratsrolle in eine obere Position durch Verdrehen des Tragrahmens,
• dem Betätigen eines ersten Klebekopfes während des Bewegens der Vorratsrolle in eine erste Drehrichtung,
• oder dem Betätigen eines zweiten Klebekopfes während der Bewegung der Vorratsrolle in eine zweite Drehrichtung, der ersten Drehrichtung entgegengesetzt und
• dem Ausführen einer Bahnklebung mit der Materialbahn, die von der erschöpften Bahnrolle ungeachtet ihrer Drehrichtung abgewickelt wird.

According to a method for connecting two material webs according to the present invention, the following method steps are carried out:

• turning a supply roll into an upper position by turning the support frame,
• actuating a first adhesive head while moving the supply roll in a first direction of rotation,
• or the actuation of a second adhesive head during the movement of the supply roll in a second direction of rotation, opposite to the first direction of rotation and
• performing web bonding with the web of material that is unwound from the exhausted web roll regardless of its direction of rotation.

A device according to the invention for performing an adhesive connection of Material webs are particularly advantageous for roll changers from Roll rotary printing machines used. A web-fed rotary press can also comprise several reel changers according to the invention.

The invention is described in more detail below with reference to a drawing.

Fig. 1

eine Seitenansicht eines automatischen Rollenwechslers gemäß der vorliegenden Erfindung,

Fig. 2

einen Rollenwechsler gemäß der vorliegenden Erfindung, wobei der erste Klebekopf abgestellt, der zweite Klebekopf an die zweite Seite der Vorratsrolle angestellt ist,

Fig. 3

einen ersten Klebekopf in einer aktiven Position, angestellt an die Oberfläche der Vorratsrolle,

Fig. 4

einen zweiten Klebekopf in aktive Position gebracht, wobei die Vorratsrolle in eine zweite entgegengesetzt zur ersten Drehrichtung rotiert,

Fig. 5

zeigt einen zweiten Klebekopf angestellt an die Vorratsrolle, welche in eine erste Drehrichtung rotiert, wobei die erschöpfte Rolle gemäß des gleichen Drehsinnes rotiert und

Fig. 6

zeigt einen ersten Klebekopf, der an die Vorratsrolle angestellt ist, wobei die Vorratsrolle in eine zweite Richtung rotiert.

It shows:

Fig. 1

a side view of an automatic reel changer according to the present invention,

Fig. 2

a roll changer according to the present invention, the first adhesive head being switched off, the second adhesive head being placed on the second side of the supply roll,

Fig. 3

a first adhesive head in an active position, positioned on the surface of the supply roll,

Fig. 4

brought a second adhesive head into active position, the supply roll rotating in a second direction opposite to the first direction of rotation,

Fig. 5

shows a second adhesive head attached to the supply roll, which rotates in a first direction of rotation, wherein the exhausted roll rotates in the same direction and

Fig. 6

shows a first adhesive head, which is attached to the supply roll, the supply roll rotates in a second direction.

Fig. 1 shows a side view of an automatic reel changer according to the present invention, which for example on the footprint of a Printing company is set up. Alternatively, the invention could Reel changer also in the basement or in the basement of a printing company be set up.

According to an embodiment of the invention, such as shown in FIG. 1, comprises a flying reel changer 1, for example two side frames 2 and 3, of which, for reasons of clarity, only one is shown in FIG. 1. The one shown in Fig. 1 Side frame 2 is on the floor of the printing plant by means of anchors 6 added. In the bottom of the printer operation, for example, a transport system can be used be provided for the automatic supply of fresh supply rolls 24 for automatic Reel changer 1. Inside the side frames 2 and 3 there are adhesive heads 9, 12, which are pivotable about axes of rotation 11 and 14 and which are between the relevant Side frames 2 and 3 of the automatic reel changer 1, which is schematic in FIG. 1 is shown extend.

The adhesive heads 9 and 12 each comprise a pressure roller 10 or 13, which overlap the entire width of the adhesive heads 9 and 12 can extend. The pressure rollers 10 and 13 are advantageously either designed as brush rollers or with provided with foamed material. The brushes or the foamed material can extend over the entire width of the floating heads 9 and 12 or alternatively on individual disc-shaped elements or brush elements, which are different from each other are spaced apart, or applied to roller cores. When the respective Adhesive heads 9 or 12 are the material web 16 passing through the adhesive heads normal transport path 8 deflected. A new supply roll 24 is central by means of the arranged support frame 22 in an upper position between the adhesive heads 9 and 12th emotional. To an adhesive bond between the web 16, which of the exhausted paper roll 25 is unwound and a new one on the supply roll 24 To produce recorded material web stock are the adhesive head 9, the pressure or Brush roll 11 and the material web 16 in their entirety very close to the new one Supply roll 24 added to ensure a quick gluing process.

The web path 8 extends from the lower exhausted paper roll 25 into one upward direction along a first guide roller 28 which is rotatable on the arranged central frame 22 is mounted. This makes a contact scratching the the support frame 22 passing material web 16 with non-movable parts on that Carrier frame 22 avoided, whereby the unwound material web 16 in perfect condition Condition is maintained and also no web tension fluctuations during the Unwinding of the material web are embossed. The adhesive head 9 becomes active Position moves, the material web 16 is from its normal web running plane 8th deflected and placed on the surface of the new supply roll 24. The normal one Path 8 continues behind a roller 15, extends around a roller 17 and further via the rollers 18 to an employed roller 19 of a driven pull roller 20 towards a pull roller 21 in the upper part of the automatic reel changer is included and which can optionally also be assigned a separate drive unit can.

An axis of rotation 23 is received between the frame side walls 2 and 3 which said rotatable support frame 22 is received. That support frame 22 has an approximately rectangular shape, although it can also be obtained in a different shape could be, and closes a first and a second at its upper and lower ends Guide roller 28 or 29 to the passing material web 16 at a distance from the to hold the outer ends of the support frame and scratch the material web 16 to avoid during the passages of the end faces of the central support frame 22. The first and second guide rolls 28 and 29 are preferably free-running rolls, which no separate drive unit is assigned. Said support frame 22 points to both Surfaces extending in the horizontal direction on rail sections 32, 33, which extend along its two sides. On both sides of the central support frame 22 there are also a pair of support arms 30, 31 which can be moved laterally are. The supply roll 24 and the exhausted roll of paper 25 added. A paper roll 24, which its full outer Has diameter, is in their state in the lower pair of support arms shown. The outer diameter of each full supply roll 24 define the The course of an envelope 34, which unhindered the space to be kept free Rotation of the support arm 22 defined about its axis of rotation 23 and outside of which the Adhesive heads 9 and 12 are arranged. The support arms 30 holding the paper rolls and 31 each include extendable coupling lugs in the area of Paper roll axes 35 and 36, which also separate paper roll acceleration and Brake drives 37 can be assigned. These drive units 37 are in one Distance to the paper roll axes 35 and 36 added. In the illustrated in Fig. 1 Example, which is shown only in schematic trains, extend Transmission elements 38, for example in the form of straps between the Drive units 37 and the corresponding paper roll axes 35 and 36.

In Fig. 2, a reel changer according to the present invention is shown, the first adhesive head 9 is in a rest position, while the second adhesive head on a second side of the supply roll is employed.

In this activated operating position, the central support arm 22 is in one position pivoted, in which the new supply roll 24 in the roll changer 1 an upper position occupies. The exhausted paper roll 25, which moves in a first direction of rotation 26, supplies a rotary printing press with a supply of material web 16 for example. The material web 16 passes a first guide roller 29, which on the central support frame 22 is arranged. The new supply roll 24, which in an upper Position is moved, is positioned between the two adhesive heads 9 and 12, one of which is returned to its deactivated position about its axis of rotation 11.

Each of the adhesive heads 9 and 12 contains a pressure roller 10, 13 and one Separating device to close the material webs after the adhesive connection has been made separate. Since the supply roll 24 rotates in a second direction of rotation 27, the second Activated adhesive head 12, which unwound from the exhausted paper roll 25 Material web 16 deflects from the web transport level and to a second side of the new one Supply roll 24 hires. To make contact between the unwound web 16 and the To avoid end portions of the central support frame 22, the unwound Material web 16 guided around a guide roller 29. The state shown in Fig. 2 is in substantially identical to the state shown in Fig. 4 of the present invention. The arms on which the adhesive heads 9 and 12 are received are in one Distance in the automatic roll changer 1 added that it is a supply roll 24th with their full diameter do not impede their rotation. The adhesive heads 9 and 12 can be either pneumatic or hydraulic or by others Actuating units, which are not shown in more detail, are actuated.

3 of the present invention shows a first adhesive head in an activated one Position, with the supply roll rotating in a second direction of rotation.

The operating positions and the directions of rotation of the components, which are shown in FIG are shown essentially correspond to those already shown in FIG. 1. Given the direction of rotation, which is the first direction of rotation 26, the second is Adhesive head 12 is pivoted out of the area of the envelope 34; instead the first adhesive head 9 is placed on a first side of the new supply roll 24. In this one illustrated example, the exhausted paper roll 25 rotates about its axis 35 in the same Direction of rotation 26 in which the new supply roll 24 rotates. That of the exhausted Paper roll 25 unwound material web 16 passes a guide roller 28 which on the central support frame 22 is rotatably received to prevent the Material web 16 contacted this support frame.

In the example shown here, the exhausted paper roll 25 rotates into a first one Direction of rotation 26, but could also rotate in the second direction of rotation 27 as in FIG. 6 shown. Only the contact angle between the material web 16, which is unwound is and the corresponding first guide roller 28 on the support frame differ slightly different from each other.

Fig. 4 shows a second adhesive head brought into its activated position, the Supply roll rotates in a second direction of rotation 27.

The configuration given here essentially corresponds to the operating positions and the directions of rotation, which have already been explained in connection with FIG. 2 have been.

The first adhesive head 9 is pivoted back into its deactivated position during the second adhesive head 12 about its axis 14 with its pressure roller 13 close to the surface the new supply roll 24 was employed. The material web 16, which of the exhausted paper roll 25 is unwound, passes another guide roller 29, which on the support frame 22 is arranged, further passes said supply roll 24 and follows in essentially their path around a roller 15 to the dancer and pull rollers in the upper part the reel changer 1.

Fig. 5 shows a second adhesive head, which is attached to a supply roll, the Supply roll rotates in a first direction of rotation and an exhausted roll also in this Direction rotates.

While the material web 16 is unwound from the exhausted paper roll 25 and is close to the surface of said new supply roll 24 and the Supply roll 24 moves in the second direction of rotation 27, the first adhesive head is 9 in pivoted its deactivated position while the second adhesive head 12 in its activated position is moved to perform a web glue. In the illustrated here The first guide roller 28 is inactive on the central support frame 22 during configuration the second guide roller 29, which on the opposite side on the support frame 22nd is added, the web of material 16 in contact with the end faces of the Support frame 22 prevents.

6 finally shows a first adhesive head which is attached to the supply roll, the exhausted paper roll 25 rotating in an opposite direction.

Because of the supply roll 24 rotating in a first direction of rotation 26, the first Glue head 9 moves into its activated position, while the second glue head 12 in remains in its deactivated position and in a position outside the envelope 34 is posed. The material web 16, which is unwound from the exhausted paper roll 25 passes, a second guide roller 28, which is received on the central support frame 22, is deflected by the first adhesive head 9 from its rail transport plane 8 and runs along its path around the roller 15. Except in relation to its direction of rotation 27 is the Fig. 6 identical to Fig. 3. Irrespective of the directions of rotation 26 and 27 of the exhausted Paper roll 25 is the first adhesive head 9 in an activated position on the supply roll 24 employed, which rotates in a first direction of rotation 26; the second adhesive head 12 will consequently only activated when the supply roll 24 rotates in a second direction of rotation 27, regardless of the direction of rotation, which of the exhausted paper roll 25 just is imprinted.

REFERENCE SIGN LIST

1

Reel changer

2nd

Side frame

3rd

Side frame

4th

Frame structure

5

Access doors

6

Foundation fixings

7

ground

8th

Train path

9

Adhesive head

10th

Pressure roller

11

Swivel axis

12th

Adhesive head

13

Pressure roller

14

Swivel axis

15

roller

16

Material web

17th

Dancer roller

18th

roller

19th

Setting roller

20th

driven pull roller

21

Dancer roller

22

Support frame

23

Support frame axis

24th

Supply roll

25th

exhausted role

26

first direction of rotation

27

second direction of rotation

28

first guide roller

29

second guide roller

30th

Beam

31

Beam

32

upper rail

33

lower rail

34

Envelope

35

Paper roll axis

36

Paper roll axis

37

Roller drive

38

Drive transmission

Claims (15)

Device for connecting material webs in a reel changer (1) with a supply reel (24) and a developed, exhausted web supply reel (25), the reels (24, 25) being received on a support frame (22) which rotates about an axis of rotation (23 ) is rotatable,
characterized by that at least one adhesive head (9, 12) is assigned an envelope curve (34) in such a way that on both sides of the supply roll (24) a connection of material webs (16) can be carried out. Device for connecting material webs according to claim 1,
characterized by that the pivot axes (11, 14) of adhesive heads (9, 12) are arranged outside an envelope (34). Device for connecting material webs according to claim 1,
wherein the adhesive heads (9, 12) each comprise a pressure roller (10, 13). Device for connecting material webs according to claim 1,
characterized by that the supply roll (24) and the unwound exhausted roll (25) are received by the rotatable support frame (22), the outer circumferential surface of the supply roll (24) describing the envelope (34) within the side frames (2, 3). Device for connecting material webs according to claim 1,
characterized by
wherein the support frame (22) comprises a first and a second web guide roller (28, 29). Device for connecting material webs according to claim 1,
characterized by that a first adhesive head (9) is brought into its activated position opposite a first side of a supply roll (24) when the supply roll rotates in a first direction of rotation (26). Device for connecting material webs according to claim 6,
characterized by that the exhausted paper roll (25) rotates in the first direction of rotation (26). Device for connecting material webs according to claim 6,
characterized by that the exhausted paper roll (25) rotates in the second direction of rotation (27). Device for connecting material webs according to claim 1,
characterized by that the second adhesive head (12) is brought into its activated position opposite a second side of the supply roll (24) when the supply roll (24) rotates in a second direction of rotation (27). Device for connecting material webs according to claim 9,
characterized by that the exhausted paper roll (25) rotates in a first direction of rotation (26). Device for connecting material webs according to claim 9,
characterized by that the exhausted paper roll (25) rotates in a second direction of rotation (27). Device for connecting material webs according to claim 1,
characterized by that the support frame (22) of said paper rolls (24, 25) moves the supply roll (24) into an upper position during an adhesive connection of material webs and their preparations. A method for connecting material webs, which comprises the following method steps: pivoting a supply roll (24) into an upper position by rotating the support frame (22), the actuation of a first adhesive head (9) during the rotation of the supply roll (24) in a first direction of rotation (26), or the actuation of a second adhesive head (12) during the rotation of the supply roll (24) in a second direction of rotation (27) and performing an adhesive connection of the material web (16), which is unwound from the exhausted paper roll (25), regardless of its direction of rotation (26, 27). Reel changer with a device for connecting material webs with a supply roll (24) and a developed, exhausted web supply roll (25), the rolls (24, 25) being received on a support frame (22) which can be rotated about an axis of rotation (23) ,
characterized by that at least one adhesive head (9, 12) is assigned to an envelope curve (34) in such a way that on both sides of the supply roll (24) a connection of material web (16) can be carried out. Rotary printing machine with a device for connecting material webs in a reel changer (1) with a supply reel (24) and an unwound exhausted web supply reel (25), the reels (24, 25) being received on a support frame (22) which rotates about an axis of rotation (23) is rotatable,
characterized by that at least one adhesive head (9, 12) is assigned an envelope curve (34) in such a way that on both sides of a supply roll (24) a connection of material webs (16) can be carried out.

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