EP1393904B1 - Rotationspresse zum Anbringen von Bildern auf einem Substrat - Google Patents

Rotationspresse zum Anbringen von Bildern auf einem Substrat Download PDF

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Publication number
EP1393904B1
EP1393904B1 EP03017466A EP03017466A EP1393904B1 EP 1393904 B1 EP1393904 B1 EP 1393904B1 EP 03017466 A EP03017466 A EP 03017466A EP 03017466 A EP03017466 A EP 03017466A EP 1393904 B1 EP1393904 B1 EP 1393904B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
working cylinder
anvil
press according
heating
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 - Lifetime
Application number
EP03017466A
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English (en)
French (fr)
Other versions
EP1393904A2 (de
EP1393904A3 (de
Inventor
Georg Strasser
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.)
Bobst Mex SA
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Bobst SA
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Application filed by Bobst SA filed Critical Bobst SA
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Publication of EP1393904A3 publication Critical patent/EP1393904A3/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/02—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with a fixed member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/265—Journals, bearings or supports for positioning rollers or cylinders relatively to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member

Definitions

  • the present invention relates to a rotary press for depositing patterns of a material on a web substrate
  • the document US Patent 4926666 describes a device that can be used in a stamping machine of the type comprising a working roll and a counter-roll, means for driving the work roll in rotation, means for exerting a predetermined prestressing between said work roll and said counter cylinder and means for adjusting the spacing between said working cylinder and said counter cylinder.
  • EP-A-0469433 discloses a stamping device comprising a working roll and a counter-roll, means for heating the work roll and means for exerting a predetermined prestress between said work roll and said counter roll.
  • the advantage of this type of press compared to the flat stamping lies in the fact of being able to work continuously at a substantially higher speed than with the flat stamping.
  • the gases resulting from the vaporization of the wax which is between the polyester carrier strip and the metal film are more easily evacuated and the consumption of web material to be deposited can be substantially reduced.
  • this material generally consisting of a laminate consisting of four layers, a polyester support strip, a wax layer, a metal film and a glue layer, is expensive.
  • the object of the present invention is to provide a solution making it possible to contribute, at least to a certain extent, to an optimal use of the material support strip to be deposited on a strip substrate while maintaining the adjustment of the parameters of the substrate. operation of the press.
  • the present invention relates to a rotary press for depositing patterns of a material on a web substrate, as defined in claim 1.
  • the rotary press comprises a frame 1 on which is mounted a working cylinder 2, the respective ends of which are fixed to the frame 1 by fixing members 3, each provided with a clamping screw 3a.
  • a counter-cylinder 4, parallel to the working cylinder 2, is pivoted freely on a rocker 5 pivotally mounted on the frame 1 about an axis 6 parallel to the axis of the cylinders 2 and 4.
  • a jack 7 is used to press the against cylinder 4 against the cylinder working piece 2, with a predetermined prestressing force, via a lever 7a acting on the rocker 5 and able to increase the pressure exerted by the jack 7.
  • FIG. 2 shows how the pressure of the jack 7 is transmitted between the working roll 2 and the counter-roll 4. This pressure is symbolized by two arrows F 1 , F 2 .
  • the counter-cylinder 4 is pivotally mounted around two coaxial half-shafts 8 by ball bearings 9.
  • Two cylindrical rings 10 are mounted on two eccentric portions 11 of the respective half-shafts 8 by ball bearings 12.
  • the cylindrical rings 10 are in rolling contact with two cylindrical surfaces 2a integral with the working cylinder 2.
  • These cylindrical rings 10 and the cylindrical surfaces 2a, forming the contact surfaces between the working cylinder 2 and the counter-cylinder 4, allow to transmit the preload exerted by the cylinder 7 while providing a clearance 13 between the working cylinder 2 and the counter-cylinder 4 for the passage of a strip substrate 14 and one or more support strips 15 of the material of the patterns to be deposited on the substrate 14.
  • This set 13 is chosen so that the prestressing exerted and the temperature of the working roll 2 make it possible to heat-transfer the patterns of the material of the support strip 15 onto the strip substrate 14 during the passage of the plates 16 in the clearance 13 separating the two rolls 2, 4.
  • One of the cylindrical rings 10 is integral with a toothed wheel 10a which meshes with a toothed wheel 2b integral with the working roll 2.
  • the toothed wheel 10a is engaged with a drive motor (not shown) via an LM motor link.
  • each half-shaft 8 are integral with a toothed wheel 17 in engagement with an endless screw 18 integral with a conical return 19, connected to a handle (not shown) for adjusting the clearance 13; it is also possible to influence the clearance 13 only on one side of the roll 2 and to create a slightly progressive clearance 13 across the width of the strip 14.
  • This system can also be replaced by two motors each acting on a screw without end 18.
  • the rotation of the half-shafts 8 of a certain angle rotates the eccentrics 11 about the axis of the coaxial half-shafts 8, thus modifying the clearance 13 between the working roll 2 and the counter-roll 4, without modifying the value of the prestress exerted on the cylinders 2 and 4 via the cylindrical contact surfaces 2a and 10.
  • the outer layer of the support strips 15, adjacent to the substrate in strip 14 on which the patterns are deposited is formed of a thermosetting glue. This is the reason why the working cylinder 2 must comprise heating means.
  • FIG. 3 shows the interior of the working cylinder 2 which comprises a heating enclosure 20 formed by a tubular part 21 in thermal contact with the working cylinder 2.
  • This heating enclosure 20 is closed at both ends by flanges 22, whose center is secured to a pivoting cylinder 23 coaxial with the axis of the working cylinder 2.
  • One of these pivot cylinders 23 (the left one in Figure 3) is traversed by an axial conduit 24 divided into two concentric ducts 24a, 24b by a tubular wall 25a of a rotating connection 25, for connecting the heating chamber 20 to a heating oil circuit (not shown).
  • the inside of the heating chamber 20 is divided into several compartments by concentric tubular partitions 26, provided with perforations 26a to form a reciprocating flow of the heating fluid between the inlet channel 24a and the channel 24b output.
  • tubular portion 21 of the heating chamber 20 and the closing flanges 22 of the ends of these enclosures are made of different metals such as steel for the external parts such as the part external cylindrical working cylinder 2, and closing flanges 22 and aluminum for the heating chamber 20.
  • these surfaces 21a, 22a are of conical shape with a half angle ⁇ at the top of these conical contact surfaces 21a, 22a corresponding to the angle of the hypotenuse d a right-angled triangle whose other sides correspond to the longitudinal thermal expansion of a given point of one of said contact surfaces (21a, 22a) relative to the median axis M of said heating chamber 20 at a given temperature e, respectively at the radial expansion of this same point at the same temperature, so that the contact surfaces 21a, 22a remain contiguous regardless of the temperature of the cylindrical heating chamber 20.
  • the angle ⁇ is determined for each case in particular.
  • this resultant is the hypotenuse of a right triangle whose sides dr 22 and dl 22 are proportional to radial expansion, respectively longitudinal, which depend on the radial respectively longitudinal dimensions of a given point. These radial and longitudinal dimensions vary according to the coefficient of expansion of the material, but their ratio and thus the angle of the hypotenuse, is constant.
  • two O-rings 27 are disposed near the two edges of the conical contact surface 22a of the flanges of closing 22 with the adjacent conical surface 21a of the tubular portion 21 of the heating chamber 20.
  • the faces 29 not covered with images of the tool 2 may be covered with an insulating layer, promoting the passage of available heat through the plates 16 ( Figures 5, 29b).
  • a plate 16 may be inserted and fixed by suitable means 30 in a carrier tube 31 which may be slipped on the work roll 2.
  • Parts 31 and 2 can also be the same.
  • the plate 16 may be provided with blind holes 32, variable dimensions and distributions, connected or not by holes 33 promoting the escape of air during temperature changes. This will create air pockets and effective brakes to the passage of heat.
  • the images can be placed on shims 34, which will incidentally allow to set their active radius Ra in small values.
  • These shims 34 may or may not be provided with holes of new distributions and variable diameters. It can also be blind holes.
  • the images of the holes 32, 35 may be aligned or not.
  • the shim 35 may also be made of insulating material, resistant to temperature. It is also possible to envisage the use of fretted materials (pressed from powder). In summary, we can slow the passage of energy through one or more clichés compared to others.
  • Figure 5 also shows a proposed arrangement for this fixation.
  • the controlled elasticity of the workpiece 30 permits differential thermal expansions between the portions 31 and 16.
  • FIG. 6 shows that it is possible to provide fixing variants in which a change in thickness of the shim 34 does not cause angular displacement of the plate 16. This is achieved by proper orientation of the reference face 37. This orientation , parallel to the central line 38 of the plate, however, leads to additional fixation, for example screw 39.

Claims (10)

  1. Rotationspresse zum Anbringen von Motiven aus einem Material auf einem Bandsubstrat (14), umfassend einen Arbeitszylinder (2), der Druckstöcke (16) der anzubringenden Motive aus dem Material trägt, und einen Gegenzylinder (4), Mittel (2b, 10a, LM) zum Drehantrieb des Arbeitszylinders (2), Mittel (20) zum Heizen und zur Steuerung/Regelung der Temperatur des Arbeitszylinders (2), Mittel (7, 7a, 2a, 10) zum Ausüben einer bestimmten Vorspannung zwischen dem Arbeitszylinder (2) und dem Gegenzylinder (4), Freirollmittel (9) zwischen dem Gegenzylinder (4) und seiner Drehwelle (8) und Mittel (10, 11, 17, 18, 19) zur Einstellung des Abstandes (13) zwischen dem Arbeitszylinder (2) und dem Gegenzylinder (4), die unabhängig von den Mitteln (7, 7a, 2a, 10) zur Ausübung der bestimmten Vorspannung sind.
  2. Presse nach Anspruch 1, bei der die Drehachsen des Arbeitszylinders (2) und des Gegenzylinders (4) an einem Gestell (1) bzw. an einer Wippe (5) befestigt sind, deren Drehachse am Gestell (1) parallel zu denjenigen des Zylinders und des Gegenzylinders (2, 4) ist, und wobei ein Stellglied (7) die Vorspannung auf die Wippe (5) mittels eines Hebels (7a) ausübt.
  3. Presse nach Anspruch 1, bei der der Abstand (13) zwischen dem Arbeitszylinder (2) und dem Gegenzylinder (4) festgelegt ist durch wenigstens einen zylindrischen Abschnitt (2a), der fest mit dem Zylinder (2) verbunden ist und in Berührung mit wenigstens einem zylindrischen Abschnitt (10) ist, der unabhängig vom Gegenzylinder (4) und drehbar auf einem bezogen auf die Drehachse des Gegenzylinders (4) exzentrischen Abschnitt (11) der Drehwelle (8) des Gegenzylinders (4) angebracht ist, wobei Mittel (17, 18) vorgesehen sind für die Einstellung der Winkelposition des exzentrischen Abschnitts (11) der Drehwelle (8) in Funktion des gewünschten Abstands (13) zwischen dem Arbeitszylinder (2) und dem Gegenzylinder (4).
  4. Presse nach Anspruch 3, bei der der Arbeitszylinder (2) zwei zylindrische Abschnitte (2a) aufweist, die auf beiden Seiten des Arbeitszylinders benachbart zu seinen Enden angeordnet sind in jeweiligem Kontakt mit zwei zylindrischen Abschnitten (10), die unabhängig vom Gegenzylinder (4) und jeweils drehkbar auf zwei exzentrischen Abschnitten (11) der Drehwelle (8) des Gegenzylinders (4) angebracht sind, wobei die Abschnitte (11) auf beiden Seiten des Gegenzylinders (4) angeordnet sind und wobei jeder der exzentrischen Abschnitte (11) der Drehwelle (8) unabhängigen Mitteln (17, 18) zugeordnet ist zur Einstellung seiner Winkelposition.
  5. Presse nach einem der vorhergehenden Ansprüche, bei der die Heizmittel umfassen:
    eine zylindrische Einfassung (20), die in thermischem Kontakt mit der äußeren Rohrwandung des Arbeitszylinders (2) steht,
    rohrförmige, konzentrische Trennwände (28), welche mit Verbindungsöffnungen (26a) ausgerüstet sind und welche die Einfassung (20) in eine zentrale, von konzentrischen, ringförmigen Kammern umgebene Kammer aufteilen, wobei zwei Flansche (22) die jeweiligen Enden der ringförmigen Kammern schließen,
    axiale Leitungen zur Versorgung (24a) bzw. zur Entleerung (24b), welche die Einfassung (20) mit einer Heizfluidquelle verbinden,
    konische Kontaktflächen (21a, 22a) zwischen den jeweiligen Flanschen (22) und der zylindrischen Wandung (21) der Heizeinfassung (20), wobei der halbe Winkel an der Spitze (α) dieser konischen Kontaktflächen (21a, 22a) dem Winkel der Hypotenuse eines rechteckigen Dreieicks entspricht, dessen andere Seiten der thermischen Ausdehnung in Längsrichtung (dl21, dl22) eines gegebenen Punktes einer der Kontaktflächen (21a, 22a) bezogen auf eine Mittelachse (M) der Heizeinfassung (20) bei gegebener Temperatur entspricht, bzw. der radialen Ausdehnung (dr21, dr22) desselben Punktes bei der gleichen Temperatur entspricht, derart, dass die Kontakflächen (21a, 22a) aneinanderliegen, egal welche Temperatur die Heizeinfassung (20) aufweist.
  6. Presse nach Anspruch 5, bei der die Wandung der Heizeinfassung (20) und die Flansche (22) aus Materialien sind, die einen jeweiligen unterscheidlichen Ausdehungskoeffizienten aufweisen.
  7. Presse nach einem der vorhergehenden Ansprüche, bei der der Energiedurchfluss in nicht benutzten, zwischen den Druckstöcken (1) liegenden Bereichen durch Isolierelemente (29b) verlangsamt ist.
  8. Presse nach einem der vorhergehenden Ansprüche, bei der der Wärmedurchfluss durch die Druckstöcke durch adäquate Löcher, Strukturen und Formgebungen im Innern der Druckstöcke oder durch isolierende oder nicht-isolierende Füllstücke unter den Druckstöcken gebremst werden kann, wobei die Füllstücke mit Blindbohrungen oder mit durchgehenden oder nichtdurchgehenden Bohrungen ausgerüstet sind, wobei die Füllstücke auch aufgeschrumpft oder als Verbund vom Sandwichtyp vorgesehen sein können.
  9. Presse nach Anspruch 8, bei der die Füllstücke eine federnde Funktion aufweisen, derart, dass eventuelle Unrund-Fehler des Prägewerkzeugs neutralisiert werden.
  10. Presse nach einem der vorhergehenden Ansprüche, bei der die Druckstöcke durch Füllstücke in Profilform entlang der Mantellinie des Werkzeugs befestigt sind, wobei diese Profile wenigstens eine geneigte Fläche aufweisen, welche den Druckstock präzise und reproduzierbar nicht nur radial sondern auch winklig gegen eine Referenzfläche des Trägerwerkzeugs (38) positioniert, wobei diese Profile aus einem elastischen, isolierenden oder nicht-isolierenden Materials sein können und wobei sie die Gesamtlänge oder eine Teillänge einer Mantellinie des Werkzeugs aufweisen können.
EP03017466A 2002-08-19 2003-08-01 Rotationspresse zum Anbringen von Bildern auf einem Substrat Expired - Lifetime EP1393904B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH14192002 2002-08-19
CH14192002 2002-08-19

Publications (3)

Publication Number Publication Date
EP1393904A2 EP1393904A2 (de) 2004-03-03
EP1393904A3 EP1393904A3 (de) 2004-12-15
EP1393904B1 true EP1393904B1 (de) 2007-06-20

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ID=31193665

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EP03017466A Expired - Lifetime EP1393904B1 (de) 2002-08-19 2003-08-01 Rotationspresse zum Anbringen von Bildern auf einem Substrat

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US (1) US6907821B2 (de)
EP (1) EP1393904B1 (de)
JP (1) JP2004074286A (de)
KR (1) KR100567610B1 (de)
CN (1) CN1485203A (de)
AT (1) ATE365106T1 (de)
AU (1) AU2003234750A1 (de)
BR (1) BR0303107A (de)
CA (1) CA2437521A1 (de)
DE (1) DE60314479T2 (de)
TW (1) TWI225447B (de)

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TWI253389B (en) 2003-07-25 2006-04-21 Bobst Sa Method for tightening an embossing plate ring on a chuck
GB2430406A (en) * 2005-09-21 2007-03-28 Focus Label Machinery Ltd A printer
DE102005054766A1 (de) * 2005-11-17 2007-05-31 Gs-Engineering Gmbh Druck- und Prägewerk und Arbeitszylinder und Gegendruckzylinder hierfür
DE102007060581A1 (de) * 2007-12-13 2009-06-18 Heidelberger Druckmaschinen Ag Rotationsprägeeinrichtung
EP2275259A1 (de) 2009-07-14 2011-01-19 Pantec GS Systems AG Druck- oder Prägewerk und Arbeitszylinder hierfür
WO2013044382A1 (en) * 2011-09-30 2013-04-04 Canadian Bank Note Company, Limited Tactile feature tool
CN103350431B (zh) * 2013-07-24 2015-01-21 无锡商业职业技术学院 一种薄板冲裁装置
US9738005B2 (en) * 2014-10-31 2017-08-22 Roto-Die Company, Inc. Anvil roll and internal adjustment mechanisms therefor
JP6296308B1 (ja) * 2016-09-26 2018-03-20 ツジカワ株式会社 ロール装置
KR102282474B1 (ko) * 2017-06-15 2021-07-27 한화에어로스페이스 주식회사 박벽 부품 고정장치
KR102256475B1 (ko) * 2017-06-15 2021-05-26 한화에어로스페이스 주식회사 탄성체의 제조 방법
DE102018127669A1 (de) * 2018-11-06 2020-05-07 Windmöller & Hölscher Kg Verfahren für den Wechsel der Produktion einer Flachfolienmaschine von einem Einsatzprodukt zu einem Folgeprodukt
CN109848294A (zh) * 2019-04-10 2019-06-07 涿州皓原箔业有限公司 一种压花折叠一体机
CN113002158B (zh) * 2021-02-26 2022-08-26 重庆市金利药包材料有限公司 包装袋印刷用干燥装置

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Also Published As

Publication number Publication date
TW200404679A (en) 2004-04-01
JP2004074286A (ja) 2004-03-11
US6907821B2 (en) 2005-06-21
CN1485203A (zh) 2004-03-31
BR0303107A (pt) 2004-08-24
EP1393904A2 (de) 2004-03-03
KR100567610B1 (ko) 2006-04-04
US20040035305A1 (en) 2004-02-26
DE60314479T2 (de) 2008-02-21
TWI225447B (en) 2004-12-21
KR20040016802A (ko) 2004-02-25
ATE365106T1 (de) 2007-07-15
EP1393904A3 (de) 2004-12-15
DE60314479D1 (de) 2007-08-02
AU2003234750A1 (en) 2004-03-11
CA2437521A1 (en) 2004-02-19

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