EP0049376B1 - Support d'un rouleau - Google Patents

Support d'un rouleau Download PDF

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Publication number
EP0049376B1
EP0049376B1 EP81107005A EP81107005A EP0049376B1 EP 0049376 B1 EP0049376 B1 EP 0049376B1 EP 81107005 A EP81107005 A EP 81107005A EP 81107005 A EP81107005 A EP 81107005A EP 0049376 B1 EP0049376 B1 EP 0049376B1
Authority
EP
European Patent Office
Prior art keywords
roll
support
pawl
pinch roll
designed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81107005A
Other languages
German (de)
English (en)
Other versions
EP0049376A1 (fr
Inventor
Richard Josy
Karl-Heinz Hartmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Albert Frankenthal AG
Original Assignee
Albert Frankenthal AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Albert Frankenthal AG filed Critical Albert Frankenthal AG
Priority to AT81107005T priority Critical patent/ATE7131T1/de
Publication of EP0049376A1 publication Critical patent/EP0049376A1/fr
Application granted granted Critical
Publication of EP0049376B1 publication Critical patent/EP0049376B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1863—Support arrangement of web rolls with translatory or arcuated movement of the roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/181—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll
    • B65H19/1815—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll the replacement web being stationary prior to splicing contact

Definitions

  • the invention relates to a roll carrier for a web-fed rotary printing press with receiving devices for at least two rolls to be processed one behind the other and with a device for carrying out a flying roll change, which has a pressure roller which is freely rotatably mounted on a support interacting with an adjusting device and by means of which the run-out path to be cut off by means of a knife to the circumference of the accelerated to web speed, the roll containing on its circumference provided with adhesive connecting web can be pressed.
  • a roller carrier of this type is known from US-A 3250488.
  • the pressure roller which normally has a foam cover, springs back due to the thrust or due to impacts exerted by the roller and thereby briefly lifts off the scope of the assigned new roller.
  • the run-out path just when the so-called adhesive tip passes through i.e. during the passage of the beginning of the connecting track provided with adhesive, not or at least not along the entire length of the adhesive tip, is pressed against the circumference of the new roll containing the connecting track.
  • DE-B 1 233629 shows a roll-up or roll-off device for a slitter-winder or the like with a stationary winding roll against which a pressure roller can be pressed.
  • the pressure roller is in this case received on a swivel arm which is supported by a spring on a further swivel arm which is acted upon by a piston rod which is connected to a piston which is arranged in a cylinder having two pressure chambers which can be acted upon by hydraulic fluid and separated by the piston is.
  • Supply lines are connected to the pressure chambers, which lead via a control slide, which can be adjusted by means of a sensor that scans the position of the swivel lever receiving the pressure roller so that the contact pressure exerted by the pressure roller on the winding roll remains constant despite the increasing or decreasing winding roll diameter.
  • the carrier receiving the pressure roller is assigned a locking mechanism which is activated together with the adjusting device assigned to the carrier and which is designed to act on one side and prevents the pressure roller from lifting off the roller.
  • the locking mechanism can be designed as a hydraulic locking mechanism.
  • the locking mechanism can simply be designed as a hydraulic shock absorber, the damping properties of which can expediently be set.
  • the residual elasticity that is still maintained advantageously ensures that e.g. Out of roundness of the roller can be absorbed by the shock absorber. It is therefore possible to provide the pressure roller itself with a relatively rigid cover.
  • the pressure roller carrier can be mechanically lockable.
  • the locking mechanism can simply be provided with at least one pawl which is pivotably mounted on the pressure roller carrier and which can be set up by means of an actuating cylinder in relation to a stationary support surface assigned to its end face opposite the bearing.
  • the end face of the pawl assigned to the support surface can advantageously cooperate with the support surface under self-locking frictional engagement. This enables a continuous, continuous adjustment of the pawl and thus an exact contact of the pressure roller.
  • the pawl can simply be designed as a segment tab with an eccentric pivot axis and the support surface can simply be designed as a flat plate.
  • the pawl is expediently ventilated via the assigned actuating cylinder, which can simply be designed as a double-acting cylinder.
  • the roller carrier shown in Fig. 1 consists of a portal-like frame 1, which receives a rotatably mounted, multi-armed roller star 2.
  • the roller star 2 has only two arms 3 and 4 offset from one another by 180 °, each of which holds a roller 5 and 6, so that after the one roller has been used up, another roller is immediately available.
  • Deflecting rollers 8 are mounted on holders 7 arranged perpendicular to the arms 3 and 4, which take over the guiding of the paper web 9 drawn off from the roll 5 received on the downward-pointing arm 3. 1 is based on a situation shortly before the role change.
  • the roller star 2 is in such a pivoted position that the processed roll, here the roll 5, receiving arm 3 downwards and the new roll, here the roll 6, which was previously used instead of a processed roll downwards pointing arm 4 has been positioned, receiving arm 4 points upwards.
  • the webs which are pulled from successively used rolls, are glued to one another in order to accomplish a so-called flying roll change.
  • adhesive in the form of a so-called adhesive tip is applied to the circumference of the new roll containing the connecting web, here the roll 6, to which the run-out path pulled off the finished roll, here the roll 5, is pressed by means of a pressure roller 10 and behind it by means of a knife 11 is sheared off.
  • the roll 6 containing the connecting web is brought to web speed.
  • an acceleration band 12 which is mounted above the roller star 2 on the frame 1 and can be adjusted to the roller 6, is provided.
  • the pressure roller 10 is, as shown in FIGS. 2 and 3, freely rotatably mounted on a support 13 designed as a rocker arm, which in turn is pivotably mounted on a pivot arm 14 pivotally mounted on the frame 1 on the side of the roller star 2.
  • the swivel arm 14 can be brought to the roller 6 by means of an adjusting cylinder 15 suspended from the frame 1 from the hanging rest position indicated by dashed lines in FIG. 1.
  • This can be actuated by means of an associated actuating cylinder 16, which in turn is articulated on the swivel arm 14.
  • the actuating cylinder 16 is only indicated by its center line.
  • the actuating cylinder 16 is activated shortly before the finished roll 5 is completely used up.
  • a measuring sensor not shown in the drawings, can be provided.
  • the knife 11 which is rotatably mounted at the front end of the swivel arm 14 can, as can be seen best in FIG. 2, also be brought into the working position indicated at 11 in FIG. 2 by means of an associated adjusting cylinder 17 supported in the swivel arm 14, in which position after the adhesive connection has taken place the run-off path pulled from the processed roll is sheared off.
  • the actuating cylinders 15, 16 and 17 assigned to the swivel arm 14, the pressure roller support 13 designed as a rocker arm and the knife 11 can simply be designed as compressed air cylinders, which on the one hand enables high acceleration but on the other hand brings with it a certain degree of compressibility.
  • the pressure roller 10 which normally consists of a light metal core, which is provided with a foam cover, which makes it possible to compensate for out-of-roundness of the roller, to spring back from the roller surface of the associated roller 6 during the pressing operation, or to be lifted off the roller surface
  • What could impair the adhesive contact to be produced is assigned to the pressure roller support 13, which is designed as a rocker arm, a one-way locking mechanism which only allows a rocker arm movement in the pressing direction.
  • the pressure roller 10, which is acted upon by the force of the assigned actuating cylinder 16 during the pressure process, can therefore only move towards the assigned roller 6, but not away from it.
  • a hydraulically acting locking mechanism is provided.
  • the rocker arm forming the pressure roller carrier 13 is articulated in the preferred exemplary embodiment shown to the piston rod 18 of a hydraulic shock absorber 19, which on the other hand is supported on the pivot arm 14 by means of a pivot pin 20.
  • the shock absorber 19 or its piston rod 18 and the actuating cylinder 16 associated with the rocker arm are articulated on the same arm of the rocker arm and arranged one above the other in the exemplary embodiment shown.
  • a tab 21 projecting beyond the actuating cylinder linkage can simply be provided, which enables the shock absorber according to the invention to be subsequently installed in already existing roller carriers.
  • the shock absorber 19 can simply consist of a cylinder articulated on the swivel arm 14 and filled with damping liquid, which, as can best be seen in FIG. 4, is divided into two chambers 23 and 24 by a piston 22 connected to the piston rod 18 are connected to one another via a line 27 controlled by a throttle 26. If the piston 22 is acted upon abruptly, the throttle 26 acts as a closure.
  • the throttle 26 can expediently be designed to be adjustable, so that the delay and damping caused thereby can be adapted to the circumstances of the individual case, e.g. the ability of the cover of the pressure roller 10 to compensate for out-of-roundness of the roll.
  • the chambers 24 and 25 are connected to one another via a further line 28, which is controlled by a check valve 29, which is arranged in such a way that a delay-free tracking of the piston 22 is ensured in the pressing direction. 4, the damping liquid is to be pressed from the chamber 24 into the chamber 25 practically without delay. In the opposite direction, the line 28 is blocked by the check valve 29. If the actuating device assigned to the pressure roller carrier 13 is designed as a hydraulic cylinder, hydraulic locking of the pressure roller carrier and thus the pressure roller could be accomplished simply by means of a non-return valve which blocks the outflow from the chamber which enlarges during the adjustment process.
  • this check valve would have to be controllable in order to bring about a return movement of the working piston into its initial position.
  • the quantity compensation takes place via the throttle 26 during the return movement of the piston 22 into its initial position.
  • the piston 22 is pulled into its initial position by the gravity of the pressure roller 10 when the actuating cylinder 16 is vented.
  • the actuating cylinder 16 can therefore advantageously be designed as a single-acting cylinder. However, it would also be readily conceivable to provide a double-acting actuating cylinder to support the return movement.
  • a pawl 30 pivotally mounted on the rocker arm carrier 13 forming the rocker arm is provided, the end face of which opposite its pivot bearing cooperates with an associated support surface 31 which is fixedly attached to the pivot arm 14.
  • An associated actuating cylinder 32 engages on the pawl 30, which is also supported on the swivel arm 14 and can be activated together with the actuating cylinder 16 assigned to the pressure roller carrier 13. As long as the actuating cylinders 16 and 32 are passivated, the pawl 30 is in the position, designated 30a in FIG. 3, in relation to the assigned support surface 31.
  • the pawl 30 is set up by the assigned actuating cylinder 32 relative to the assigned support surface 31.
  • the pawl 30, which is supported on the associated support surface 31 and thus indirectly on the swivel arm 14, fixes the momentary tilt position of the rocker arm forming the pressure roller support 13 and prevents this from a tilting movement opposite to the adjustment direction, so that the pressure roller remains in contact with the assigned roller.
  • the support surface 31 is accordingly located in the peripheral region of the pressure roller 10 facing away from the assigned roller.
  • the support surface 31 can be toothed and the pawl 30 can be provided with a corresponding nose which engages in the toothing.
  • the support surface 31 is as massive, flat plate formed, which is fastened by support bracket 33 to the swivel arm 14.
  • the pawl end face 34 assigned to the support surface 31 is curved here in such a way that it interacts with the support surface 31 under self-locking frictional engagement, which relieves the load on the cylinder 32.
  • the pawl 30 can simply be designed as a segment tab with an eccentric axis.
  • the pawl 30 is reset by the actuating cylinder 32. This is therefore expediently designed as a double-acting cylinder.
  • the embodiment shown with a flat support surface advantageously enables a stepless adjustment of the pawl 30 and thus practically a stepless locking of the pressure roller 10.
  • the lateral bearing pins 35 of the pressure roller 10 also serve as pawl bearings.
  • a pawl with an associated support surface 31 and an associated actuating cylinder 32 is expediently provided on each side of the pressure roller 10.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (10)

1. Porte-bobines pour une presse rotative - bobines équipé de supports pour au moins deux bobines à traiter successivement et d'un échangeur de bobines fonctionnant en pleine marche de la machine, muni d'un rouleau d'application sous pression (10), monté à rotation libre sur un support (13) coopérant avec un dispositif de commande (16), rouleau d'application (10) au moyen duquel la fin de la bande précédente à découper avec un couteau (11) est appliquée sous pression à la surface périphérique de la bobine suivante, accélérée à la vitesse-de translation de la bande à imprimer, dont l'amorce située à la périphérie de la bobine est revêtue d'une couche d'adhésif, caractérisé en ce qu'au support (13) du rouleau d'application (10) est associé un dispositif d'arrêt (18, 19 ou 30, 31) activé en même temps que les dispositifs de commande (16) coopérant avec ledit support (13), et en ce que ce dispositif d'arrêt est un dispositif à fonctionnement unilatéral, destiné à éviter que le rouleau d'application (10) ne puisse se détacher de la bobine.
2. Porte-bobines selon la revendication 1, caractérisé en ce que ledit dispositif d'arrêt se présente sous forme d'un dispositif d'arrêt hydraulique (18, 19).
3. Porte-bobines selon la revendication 2, dont le dispositif de commande associé audit support du rouleau d'application est un cylindre pneumatique, caractérisé en ce que ledit dispositif d'arrêt est un amortisseur de chocs hydraulique (18, 19).
4. Porte-bobines équipé, selon l'une au moins des revendications précédentes, d'un support de rouleau d'application exécuté sous forme de levier basculant, porté par un bras pivotant et susceptible d'être appliqué sous pression à la bobine correspondante au moyen d'un cylindre de commande appuyé sur ledit bras pivotant, caractérisé en ce que ledit amortisseur de chocs (18, 19) est articulé, d'une part, audit levier basculant (13) faisant office de support pour le rouleau d'application (10) et, d'autre part, audit bras pivotant (14) qui supporte ledit levier basculant (13).
5. Porte-bobines selon la revendication 1, caractérisé en ce que ledit dispositif d'arrêt est muni d'au moins un cliquet (30), articulé au support (13) du rouleau d'application (10) et susceptible d'être disposé au moyen d'un cylindre de commande y associé (32) en regard d'une surface d'appui (31) associée à l'une de ses faces frontales (34), opposée à son pivot d'articulation, et reposant de manière stationnaire en dehors dudit support (13) du rouleau d'application (10).
6. Porte-bobines selon la revendication 5, caractérisé en ce que ladite face frontale (34) du cliquet (30) coopérant avec ladite surface d'appui (31) coopère avec cette dernière par blocage automatique assuré positivement par frottement sans glissement.
7. Porte-bobines selon la revendication 5 ou 6, caractérisé en ce que ledit cliquet (30) est une plaque en forme de segment à axe de pivotement excentrique et ladite surface d'appui (31) se présente sous forme d'une plaque plane.
8. Porte-bobines selon l'une au moins des revendications précédentes 5 à 7, équipé d'un support pour le rouleau d'application se présentant sous forme d'un levier basculant, porté à son tour par un bras pivotant et pouvant être appliqué sous pression à la surface périphérique de la bobine correspondante au moyen d'un cylindre de commande supporté par ledit bras pivotant, caractérisé en ce que ledit cylindre de commande (32) associé au cliquet (30) et ladite surface d'appui (31) coopérant avec le cliquet (30) s'appuient sur ledit bras pivotant (14).
9. Porte-bobines selon l'une au moins des revendications précédentes 5 à 8, caractérisé en ce que ledit rouleau d'application (10) est, à chacune de ses extrémités, muni d'un cliquet (30), monté sur le pivot de support (35) du rouleau d'application (10).
10. Porte-bobines selon l'une au moins des revendications précédentes 5 à 9, caractérisé en ce que le cylindre de commande (32) associé au cliquet (30) est un cylindre de commande à double effet.
EP81107005A 1980-09-13 1981-09-07 Support d'un rouleau Expired EP0049376B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81107005T ATE7131T1 (de) 1980-09-13 1981-09-07 Rollentraeger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3034674 1980-09-13
DE3034674A DE3034674C2 (de) 1980-09-13 1980-09-13 Wickelrollenträger

Publications (2)

Publication Number Publication Date
EP0049376A1 EP0049376A1 (fr) 1982-04-14
EP0049376B1 true EP0049376B1 (fr) 1984-04-18

Family

ID=6111924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107005A Expired EP0049376B1 (fr) 1980-09-13 1981-09-07 Support d'un rouleau

Country Status (3)

Country Link
EP (1) EP0049376B1 (fr)
AT (1) ATE7131T1 (fr)
DE (2) DE3034674C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100009A (en) 1989-05-03 1992-03-31 Tri-Tech Systems International Inc. Closure and access systems for containers and methods of manufacture and use

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1178562B (it) * 1984-10-04 1987-09-09 Cerutti Spa Off Mec Dispositivo di azionamento di un rullo pressore, asservito ad un meccanismo di giuntaggio della banda di carta in una macchina da stampa
DE4218825C2 (de) * 1992-06-09 1995-02-23 Koenig & Bauer Ag Vorrichtung zum Verbinden zweier Papierbahnen
JP2003201048A (ja) * 2002-01-08 2003-07-15 Tokyo Kikai Seisakusho Ltd 紙継ぎ装置
EP2062841B1 (fr) * 2007-11-23 2013-02-13 Goss Contiweb B.V. Dispositif pour appliquer une feuille de papier continue sur une enrouleuse de papier et changeur de bobine correspondant
CA3055902A1 (fr) 2018-09-19 2020-03-19 Curt G. Joa, Inc. Appareil et methode d'epissage de rouleaux de materiaux

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767728A (en) * 1928-02-10 1930-06-24 Hoe & Co R Web-joining mechanism
DE1233689B (de) * 1963-03-22 1967-02-02 Goebel Gmbh Maschf Aufrolleinrichtung fuer Rollenschneid- und sonstige Papierverarbeitungsmaschinen
US3250488A (en) * 1963-10-03 1966-05-10 Beloit Eastern Corp Braking and tension roll
JPS4837942B1 (fr) * 1970-12-18 1973-11-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100009A (en) 1989-05-03 1992-03-31 Tri-Tech Systems International Inc. Closure and access systems for containers and methods of manufacture and use

Also Published As

Publication number Publication date
DE3034674A1 (de) 1982-04-01
DE3034674C2 (de) 1983-10-06
EP0049376A1 (fr) 1982-04-14
ATE7131T1 (de) 1984-05-15
DE3163214D1 (en) 1984-05-24

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