EP0614838A1 - Rouleau de pression interchangeable - Google Patents

Rouleau de pression interchangeable Download PDF

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Publication number
EP0614838A1
EP0614838A1 EP93119506A EP93119506A EP0614838A1 EP 0614838 A1 EP0614838 A1 EP 0614838A1 EP 93119506 A EP93119506 A EP 93119506A EP 93119506 A EP93119506 A EP 93119506A EP 0614838 A1 EP0614838 A1 EP 0614838A1
Authority
EP
European Patent Office
Prior art keywords
die
der
bahntransportvorrichtung
und
andrückhülse
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.)
Granted
Application number
EP93119506A
Other languages
German (de)
English (en)
Other versions
EP0614838B1 (fr
Inventor
David C. Burke
Mike A. Novick
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0614838A1 publication Critical patent/EP0614838A1/fr
Application granted granted Critical
Publication of EP0614838B1 publication Critical patent/EP0614838B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53657—Means to assemble or disassemble to apply or remove a resilient article [e.g., tube, sleeve, etc.]

Definitions

  • the present invention relates to a device for transporting material webs in a rotary printing press or in a folder, and in particular to an exchangeable pressure sleeve which can be applied to an adjustable pressure roller.
  • the known web transport devices have a fixed, driven transport roller and at least one narrow, adjustable pressure roller. These narrow, adjustable pressure rollers have a disadvantageous effect in folders.
  • the width of a strand of a material web can change with each new operation. If this is the case, the narrow pressure rollers must be adjusted so that they contact both edges of a strand. This means that bolts have to be loosened, with which the pressure rollers are fastened on an axis, and rings, with which each pressure roller is connected, are moved into the correct position and then the bolts have to be tightened again.
  • the pressure rollers do not have to operate with a high pressure force, they tend to separate from the fixed, driven transport roller with each vibration-related impact. This leads to phase voltage differences.
  • the contact force of the rollers was increased, but not the pressure force generated by the pressure rollers, since a mechanical lock was installed that determined the gap between the rollers.
  • this mechanical lock is cumbersome and time-consuming and normally has to be carried out for each new operation.
  • British Patent No. 1,457,989 discloses a bearing mounted carrier which is moved by two cylinders to which a pressure medium is supplied via a conventional pressure line. The force of the pressure can be selected via a control. A connection of the individual chambers of the cylinders to one another causes a displacement of the volume of liquid from one chamber to the other as a result of volume fluctuations, as a result of which the position of a lever attached to one side is stabilized and the web tension is accordingly kept constant.
  • the U.S. U.S. Patent No. 3,083,887 discloses a device having a cylinder to which a pressure medium is supplied, thereby bending a lever attached to one side to thereby respectively increase or decrease the belt tension of a drive via a roller.
  • One solution to these problems has been to provide an activating device for applying a variable, full-width pressure roller to a fixed, driven transport roller in order to act on it.
  • Such a device pulls essentially wrinkle-free webs, which can consist of several web strands, with a constant web tension through a folder. This enables the formation of an accurate longitudinal fold in the gap between the adjustable, full-width pressure roller and the transport roller.
  • a damping device which acts simultaneously with the activation device on the full-width pressure roller, stabilizes the position of this adjustable pressure roller and prevents or limits the build-up of vibrations.
  • the present invention provides a rail transport device which has the following features: a driven, rotatable transport roller with a fixed axis; at least one adjustable pressure roller, the axis of which extends essentially parallel to said fixed axis, and which can be adjusted to said driven transport roller and has a length corresponding to the maximum width of the web to be processed in the printing press; and an interchangeable pressure sleeve attached to the adjustable pressure roller.
  • An advantage of the present invention is that in this device the worn pressure sleeve can be removed and replaced with a new one. This eliminates the need to overhaul worn or damaged pressure rollers.
  • the interchangeable compression sleeve of the present invention also includes a compressible layer of material. This compressible area increases the shock absorbing ability, improves tension uniformity.
  • the interchangeable pressure sleeve of the present invention has at least one annular gap along its longitudinal axis.
  • This annular gap has the advantage that the material web can curl without permanent creases or creases.
  • the present invention also provides a device which serves as a counterweight or balance for the pressure roller while it is in a maintenance position when the removable pressure sleeve is replaced.
  • This has the advantage that the interchangeable pressure sleeve can be axially removed from one side of the adjustable pressure roller or can be applied to it without the pressure roller having to be completely removed from the printing press.
  • the web transport device shown in Fig. 1 comprises a rotatable, driven transport roller 10 which is mounted in a support bearing attached to a frame of a printing press or a folder. Opposite the driven transport roller 10 is an adjustable pressure roller 12 with an interchangeable pressure sleeve 14 mounted thereon, which is brought into contact with the driven transport roller 10.
  • the adjustable pressure roller 12 is of full width, i. H. that it has a width corresponding to the maximum width of a material web that can be processed in the printing press.
  • a material web 16 shown in FIG. 2 consists of at least one strand and is located between the driven transport roller 10 and the adjustable pressure roller 12.
  • the adjustable pressure roller 12 is set by arms 18 and 20.
  • the arms 18 and 20 comprise an activation device 22 which has a control 24 connected to it, and a damping element 26 which has a control 28 connected to it, as shown schematically in FIG. 2.
  • the activating device 22 assigns a precisely metered activating or positioning force, while a build-up of vibrations is prevented by the damping element 26, which is connected to the activating device 22 either in parallel or in series.
  • the activation device 22 can be preset by the Control 24 take place, and a change in the damping property of the damping element 26 can be done by the controller 28.
  • the pressure sleeve is hollow and tubular, it is fixedly connected to the adjustable pressure roller 12 and rotates with it under the influence of the driven transport roller 10. However, the pressure sleeve 14 can be removed from the adjustable pressure roller 12 and replaced, as explained below.
  • the pressure sleeve 14 can be constructed in a variety of ways. In the embodiment of the present invention shown here, the pressure sleeve 14 consists of a laminate. Thus, the pressure sleeve 14 comprises a cylindrical outer layer 30, which has a smooth, continuous outer surface 32, as shown in FIG. 3.
  • the cylindrical outer layer 30 preferably consists of a very thin, non-compressible material of medium hardness, such as natural rubber or synthetic rubber.
  • the smooth outer surface 32 of the pressure sleeve 14 has no gaps or seams, except for one or more annular gaps 36 formed along the axial length of the pressure sleeve, as shown in FIGS. 1 and 2.
  • the smooth outer surface 32 enables the contactable pressure roller 12 to make reliable contact with the web material 16.
  • annular gaps 36 allow the web material 16 to curl without permanent creases or creases.
  • the number and the widths of the annular gaps can vary depending on the width and thickness of the web material strands moving through the web transport device.
  • a cylindrical intermediate layer 38 is, seen in the radial direction, within the outer layer 30 of the Pressure sleeve 14 arranged as shown in Fig. 3.
  • the intermediate layer 38 has a cylindrical outer surface 40 which is fixedly attached to the cylindrical inner surface 42 of the outer layer 30.
  • the cylindrical intermediate layer 38 consists of a reinforced, elastic, compressible material, e.g. B. from at least one layer of cottonine treated with a polymeric foam rubber. With this compressible material layer, all impacts occurring when the web material runs through the web transport device are absorbed by the pressure sleeve 14.
  • the intermediate layer 38 of the pressure sleeve 14 is secured to a hollow, elastically expandable, rigid, metallic (or plastic) inner layer 44, which has a thin-walled tube 46, and the thin-walled tube 46 is in turn firmly connected to the adjustable pressure roller 12.
  • a cylindrical inner surface 48 of the tube 46 is in contact with a cylindrical outer surface 50 of the adjustable pressure roller 12.
  • the tube 46 is fixed but releasably connected to the adjustable pressure roller 12, so that the complete pressure sleeve 14 can be axially applied to and / or removed from the adjustable pressure roller with a sliding movement. This construction enables the pressure sleeve 14 to be replaced after a period of use.
  • the pressure sleeve 14 described here has an inner layer 44, an outer layer 30 and an intermediate layer 38, this could also have a smaller or larger number of layers, if desired.
  • the pressure sleeve 14 could, for example, have an additional layer made of the same material as that of the outer layer 30, which, viewed in the radial direction, is arranged within the intermediate layer 38 and, viewed in the radial direction, outside of the inner layer 44.
  • the pressure sleeve 14 and the adjustable pressure roller 12 have a tight fit metal-on-metal or (plastic-on-metal) between the cylindrical metal (or plastic) tube 46 on the inside of the pressure sleeve 14 and the outer surface of the metal adjustable pressure roller 12.
  • a constant diameter results from the inner surface 48 of the cylindrical tube 46, which is slightly smaller than the constant diameter from the cylindrical outer surface 50 of the adjustable pressure roller 12.
  • the tight fit between the tube 46 and the adjustable pressure roller 12 must be strong enough so that the pressure sleeve 14 can grip firmly on the lateral surface of the adjustable pressure roller 12 during operation of the printing press or the folder, so that no slip occurs between the pressure sleeve 14 and the adjustable pressure roller 12.
  • the tube 46 is tensioned by the adjustable pressure roller 12 to establish a tight pressure ratio between the pressure sleeve 14 and the adjustable pressure roller 12. This pressure ratio tensions the pressure sleeve 14 on the adjustable pressure roller 12, so that there is no relative movement between them during operation of the printing press or the folder.
  • the press or folder includes means for radially stretching the tube 46 on the adjustable pressure roller 12 to release the pressure relationship between the pressure sleeve 14 and the adjustable pressure roller 12, as described below. When the pressure ratio is released, the pressure sleeve 14 can be manually axially removed from the pressure roller 12.
  • the tube 46 must also be radially stretched or radially stretched in order to apply the pressure sleeve 14 to the adjustable pressure roller 12.
  • the printing press or folder is equipped with a device for performing this function equipped as explained below.
  • the activation device 22 moves the adjustable pressure roller 12 into a maintenance position, as shown in FIG. 4. In this position, the pressure sleeve 14 can be axially removed from the adjustable pressure roller 12 and replaced with a new pressure sleeve, which is then axially applied to the adjustable pressure roller by a sliding movement.
  • a support bearing 52 Before the pressure sleeve 14 can be removed from the adjustable pressure roller 12, a support bearing 52 must be removed. This is done by removing two bolts 54 and by pivoting the support bearing 52 away, as shown in FIG. 5. However, before the support bearing 52 can be pivoted away, the arm 18 must be released from the support bearing 52. In the pivoted-down position, the support bearing 52 is held by a releasable spring bolt mounted in a sleeve (not shown). When the support bearing 52 is removed, there is no support for the adjustable pressure roller 12 on the side of the support bearing 52 in the printing press or in the folder. In order that the pressure roller 12 does not fall onto the floor of the printing press or the folder, the present invention provides a counterweight mechanism 56. This counterweight mechanism 56 is preferably located at the end of the pressure roller 12 opposite the support bearing 52 and holds a journal 58 of the pressure roller 12 in place, as shown in FIG. 5.
  • the counterweight mechanism 56 has an articulated arm 60 which is attached at one end to a caliber-like part 62 and at the other end to a lifting part 64.
  • the Caliber-like part 62 is designed so that it fits over the journal 58 and assumes a securing position.
  • the lifting part 64 is in turn connected to a pivoting part 66 which rotates about a fixed point 68 in the printing press or in the folder.
  • the pivot part 66 is in turn with an activating device 70, for. B. an air cylinder, pneumatic cylinder, hydraulic cylinder or the like, connected.
  • the activating device 70 moves the articulated arm 60 via the pivoting part 66 and the lifting part 64 until the caliber-like part 62 is firmly seated on the journal 58 of the adjustable pressure roller 12.
  • the activation device 70 brings the pivoting part 66 into a tilted position, as a result of which the counterweight mechanism 56 locks in its position and thus prevents the adjustable pressure roller 12 from falling.
  • An alternative method of removing the pressure sleeve 14 from the adjustable pressure roller 12 would be to remove the roller 12 completely from the printing press or folder by means of a crane, and then to replace the pressure sleeve 14 outside the machine. Although this would be an acceptable method for replacing the pressure sleeve, the previously described method is preferable because no heavy pressure roller that can be adjusted has to be removed and less machine downtime is associated therewith.
  • the pressure roller 12 In order to manually remove the pressure sleeve 14 from the adjustable roller 12, the pressure sleeve must be elastically stretched by liquid pressure. Therefore, the pressure roller 12 is provided with openings 72 extending in the radial direction, as shown in FIG. 3.
  • openings 72 are spaced from one another at many locations in the radial direction along the length of the adjustable pressure roller 12.
  • the adjustable pressure roller 12 is hollow and is connected by a pipe 74 to a source of hydraulic fluid or compressed air, as shown in FIGS. 1 and 4.
  • the compressed air passed through the pipeline 74 into the interior of the adjustable pressure roller 12 flows through the openings 72 and presses against the inner surface 48 of the tube 46.
  • the tube 46 is elastically stretched to an extent by the compressed air, so that it is possible to manually remove the pressure sleeve 14 from the pressure roller 12 with ease.
  • a new pressure sleeve 14 is manually applied to the adjustable pressure roller 12. After the pressure sleeve 14 has been placed axially on the pressure roller 12, the interior of the roller 12 is connected to the atmosphere. The tube 46 of the new pressure sleeve 14 then shrinks so that it sits securely on the outer surface 50 of the adjustable pressure roller 12. The tube 46 is then held in tension by the pressure roller 12.
  • the amount of air pressure required for the elastic expansion of tube 46 may vary depending on the radial thickness of the tube, the type of material of the tube, and the interference between tube and pressure roller 12.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rotary Presses (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP93119506A 1993-02-23 1993-12-03 Douille de pression interchangeable Expired - Lifetime EP0614838B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2382493A 1993-02-23 1993-02-23
US23824 1993-02-23

Publications (2)

Publication Number Publication Date
EP0614838A1 true EP0614838A1 (fr) 1994-09-14
EP0614838B1 EP0614838B1 (fr) 1997-10-15

Family

ID=21817418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93119506A Expired - Lifetime EP0614838B1 (fr) 1993-02-23 1993-12-03 Douille de pression interchangeable

Country Status (3)

Country Link
US (2) US5398604A (fr)
EP (1) EP0614838B1 (fr)
DE (2) DE4340915A1 (fr)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
DE19940398A1 (de) * 1999-08-25 2001-03-01 Heidelberger Druckmasch Ag Lagereinheit für Zugwalzen von Materialbahnen
EP1086916A2 (fr) * 1999-08-25 2001-03-28 Heidelberger Druckmaschinen Aktiengesellschaft Unité de palier pour rouleaux tendeurs de bandes de matériau
DE10000409A1 (de) * 2000-01-07 2001-07-26 Heinrich Greve Maschinen Und A Walze für den Transport von flexiblen Materialbahnen
WO2003086925A1 (fr) * 2002-04-11 2003-10-23 Koenig & Bauer Aktiengesellschaft Dispositif de traction pour bande de materiau
EP1389512A2 (fr) * 2002-08-16 2004-02-18 Voith Paper Patent GmbH Appareil pour fabriquer des bandes

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DE4340915A1 (de) * 1993-02-23 1994-08-25 Heidelberger Druckmasch Ag Auswechselbare Andrückhülse
DE9310649U1 (de) * 1993-06-18 1993-09-16 Hanosek, Peter, 75236 Kämpfelbach Vorrichtung zum Waschen und Trocknen von Druckplatten
DE4406573B4 (de) * 1994-03-01 2006-04-27 Heidelberger Druckmaschinen Ag Druckwerk einer Rotationsdruckmaschine
DE4414084C2 (de) * 1994-04-22 1997-09-18 Roland Man Druckmasch Rotationsdruckmaschine mit mehreren zusammenarbeitenden Zylindern
US6779449B1 (en) * 1994-09-15 2004-08-24 Man Roland Druckmaschinen Ag Carrying sleeve for printing and transfer forms and a process for production of such a carrying sleeve
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US6978650B2 (en) * 2003-03-11 2005-12-27 Schlegel Corporation Contact surface for a crimping roller in a roll forming tool
SE527103C2 (sv) * 2004-05-17 2005-12-20 Plockmatic Int Ab Häft- och falsmaskin
DE102005004814B4 (de) * 2005-02-01 2014-02-13 Lindauer Dornier Gmbh Verfahren und Vorrichtung zum Anlegen einer Anpresswalze an eine Warenführungswalze
DE102005042439A1 (de) * 2005-09-07 2007-03-08 Man Roland Druckmaschinen Ag Vorrichtung zum Transport von bahnförmigem Material
DE102006040388A1 (de) * 2006-08-29 2008-03-13 Maschinenfabrik Wifag Anordnung von Drucktüchern auf Druckzylindern einer Rotationsdruckmaschine
US8046885B1 (en) * 2008-06-02 2011-11-01 Superba Apparatus and methods for crimping textile threads
ES2553899T3 (es) * 2008-12-08 2015-12-14 Bobst Mex Sa Disposición de arrastre de un soporte plano en una máquina de producción de envases
DE102009000353B4 (de) 2009-01-21 2016-04-28 Koenig & Bauer Ag Zugwalze
US8783144B2 (en) * 2009-05-13 2014-07-22 Bobst Mex Sa Waste stripping unit with simplified tool change for a packaging production machine
AT510149B1 (de) * 2010-10-08 2012-02-15 Siemens Vai Metals Tech Gmbh Treiber für eine stahlbandhaspelanlage
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940398A1 (de) * 1999-08-25 2001-03-01 Heidelberger Druckmasch Ag Lagereinheit für Zugwalzen von Materialbahnen
EP1086916A2 (fr) * 1999-08-25 2001-03-28 Heidelberger Druckmaschinen Aktiengesellschaft Unité de palier pour rouleaux tendeurs de bandes de matériau
EP1086916A3 (fr) * 1999-08-25 2002-04-17 Heidelberger Druckmaschinen Aktiengesellschaft Unité de palier pour rouleaux tendeurs de bandes de matériau
US6378749B1 (en) 1999-08-25 2002-04-30 Heidelberger Druckmaschinen Ag Bearing unit for material-web nip pulleys
DE19940398B4 (de) * 1999-08-25 2009-08-06 Goss International Montataire S.A. Lagereinheit für Zugwalzen von Materialbahnen
DE10000409A1 (de) * 2000-01-07 2001-07-26 Heinrich Greve Maschinen Und A Walze für den Transport von flexiblen Materialbahnen
DE10000409B4 (de) * 2000-01-07 2005-12-22 Heinrich Greve Maschinen- Und Apparatebau Gmbh & Co Kg Walzenanordnung für den Transport von flexiblen Materialbahnen
WO2003086925A1 (fr) * 2002-04-11 2003-10-23 Koenig & Bauer Aktiengesellschaft Dispositif de traction pour bande de materiau
EP1389512A2 (fr) * 2002-08-16 2004-02-18 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
EP1389512A3 (fr) * 2002-08-16 2005-12-07 Voith Paper Patent GmbH Appareil pour fabriquer des bandes

Also Published As

Publication number Publication date
EP0614838B1 (fr) 1997-10-15
DE59307550D1 (de) 1997-11-20
DE4340915A1 (de) 1994-08-25
US5398604A (en) 1995-03-21
US5507226A (en) 1996-04-16

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