EP0357916B1 - Conveying device for multi-layer webs - Google Patents

Conveying device for multi-layer webs Download PDF

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Publication number
EP0357916B1
EP0357916B1 EP89113167A EP89113167A EP0357916B1 EP 0357916 B1 EP0357916 B1 EP 0357916B1 EP 89113167 A EP89113167 A EP 89113167A EP 89113167 A EP89113167 A EP 89113167A EP 0357916 B1 EP0357916 B1 EP 0357916B1
Authority
EP
European Patent Office
Prior art keywords
pressure roller
prism
conveying device
roller
transport
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
EP89113167A
Other languages
German (de)
French (fr)
Other versions
EP0357916A3 (en
EP0357916A2 (en
Inventor
Adam Dr. Pawlowski
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.)
Wincor Nixdorf International GmbH
Original Assignee
Wincor Nixdorf International GmbH
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 Wincor Nixdorf International GmbH filed Critical Wincor Nixdorf International GmbH
Publication of EP0357916A2 publication Critical patent/EP0357916A2/en
Publication of EP0357916A3 publication Critical patent/EP0357916A3/en
Application granted granted Critical
Publication of EP0357916B1 publication Critical patent/EP0357916B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/18—Multiple web-feeding apparatus
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/111—Details of cross-section or profile shape
    • B65H2404/1116—Polygonal cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/134—Axle
    • B65H2404/1341—Elastic mounting, i.e. subject to biasing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/134—Axle
    • B65H2404/1344—Axle with eccentric shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/186—Several articles or webs processed together
    • B65H2701/1864—Superposed webs

Definitions

  • the invention relates to a transport device for multi-layer material webs, in particular multi-layer recording media in a printing device with at least one transport roller and at least one pressure roller associated therewith, with an axis parallel to the axis of the transport roller, the transport roller and the pressure roller being prestressed against one another in the radial direction.
  • a transport device of this type is known from DE-OS 35 11 386. It works satisfactorily with a simple material web. If, however, the material web consists of several superimposed webs, which are wound together on a roll, the individual webs can shift relative to one another, which is due to the different web lengths of the web Wraps lead to bulges or loops, which then form folds in the transport gap between the transport and pressure rollers and deform the material webs overall so that proper further transport is no longer possible. Such phenomena are particularly evident in so-called receipt journal rolls, which can be printed on, for example, in cash register printers. If the sheet material is deformed or distorted in the manner described above, it is then no longer possible to properly print such multiple documents.
  • EP-A-0 233 456 relates to a device with which a multiplicity of adjacent paper webs can be moved forward with constant tension.
  • This device discloses two rolls with a covering made of an elastically soft material: thanks to the elasticity of this material, the covering is flattened over a straight distance, so that all paper webs are evenly stressed.
  • the invention has for its object to provide a transport device of the type mentioned, in which transport errors of the type described above no longer occur, so that even with multi-layer material webs a perfect and uniform transport of all layers through the transport gap is guaranteed.
  • the pressure roller has the form of a straight hollow prism open at both ends with a constant wall thickness over its entire circumference and that the pressure roller is mounted on a shaft penetrating the prism cavity with play.
  • the pressure roller performs two movements: in the curved edge region, it rotates about the axis of rotation of its shaft, so that it rolls on the circumference of the transport roller or on the material web to be transported. It performs a translatory movement between the edges, taking off the material web is taken along and shifts relative to their wave. It has surprisingly been found that the position of the material web that is directly in contact with the pressure roller only remains in comparison to the other material web carried by the transport roller when the edge region of the pressure roller forms the contact surface with the transport roller, that is to say the pressure roller forms on the material web passes on. Here, it has proven to be particularly advantageous for the material web to run smoothly if the pressure roller has rounded edges.
  • the cross section of the prism can have any polygonal shape. It is preferably square or triangular, and the edges can be rounded in the manner described above.
  • a plurality of pressure rollers can be provided, which are arranged at an axial distance on the same shaft, the shaft being pivotably mounted in the center between the pressure rollers about an axis which is perpendicular to the axes of the transport - And pressure roller containing level.
  • 10 denotes a paper web which comprises two layers 12 and 14.
  • the paper web 10 runs between a transport roller 16 and a pressure roller 18 which are tensioned against one another in the direction of the arrows 20 and 22.
  • the transport roller 16 can consist of an elastically deformable material at least in its peripheral region.
  • the pressure roller 18 has the shape of a straight, hollow, open-ended prism with a square cross section, the edges of this prism being rounded in a circular arc.
  • the wall thickness d of the prismatic pressure roller 18 is everywhere, i.e. the same in both the straight and curved wall sections.
  • the radius of curvature r of the inner peripheral surface in the edge regions is equal to the radius of a shaft 24 which axially penetrates the cavity of the pressure roller 18.
  • This prismatic shape of the pressure roller 18 in connection with its floating mounting on the shaft 24 leads to a movement of the pressure roller 18, the phases of which are shown in FIG. 2 progressively from left to right for a quarter turn of the pressure roller 18.
  • the pressure roller 18 first moves in a translatory manner together with the paper web 10 until the shaft 24 in the left corner of the pressure roller 18 abuts (middle picture of Figure 2). It has been shown that there is no displacement of the layers 12 and 14 relative to one another during this movement phase.
  • the pressure roller 18 then rotates around the shaft 24 (FIG. 2, 4th picture from the left) until it rests with its following flat side on the paper web 10 (FIG. 2, right picture).
  • the layers 12 and 14 can be shifted against each other under certain circumstances.
  • a displacement of the layers 12 and 14 of the paper web 10 relative to one another cannot be ruled out 100%, but can be considerably reduced.
  • FIG. 3 shows an embodiment of a pressure roller 18 which has a triangular cross section instead of the square cross section shown in FIG. 1. The course of movement during one revolution of this pressure roller takes place in the same manner as was described with reference to FIG. 2.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Advancing Webs (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Description

Die Erfindung betrifft eine Transportvorrichtung für mehrlagige Materialbahnen, insbesondere mehrlagige Aufzeichnungsträger in einer Druckvorrichtung mit mindestens einer Transportrolle und mindestens einer dieser zugeordneten Andruckrolle mit zur Achse der Transportrolle paralleler Achse, wobei die Transportrolle und die Andruckrolle in radialer Richtung gegeneinander vorgespannt sind.The invention relates to a transport device for multi-layer material webs, in particular multi-layer recording media in a printing device with at least one transport roller and at least one pressure roller associated therewith, with an axis parallel to the axis of the transport roller, the transport roller and the pressure roller being prestressed against one another in the radial direction.

Eine Transportvorrichtung dieser Art ist aus der DE-OS 35 11 386 bekannt. Sie arbeitet zufriedenstellend mit einer einfachen Materialbahn. Wenn die Materialbahn jedoch aus mehreren übereinanderliegenden Bahnen besteht, die gemeinsam auf einer Rolle aufgewickelt sind, so können Verschiebungen der einzelnen Bahnen relativ zueinander eintreten, die infolge der unterschiedlichen Bahnlängen des Wickels zu Aufwölbungen oder Schlaufen führen, welche dann in dem Transportspalt zwischen den Transport- und Andruckrollen Falten bilden und die Materialbahnen insgesamt so verformen, daß ein ordnungsgemäßer Weitertransport nicht mehr möglich ist. Solche Erscheinungen zeigen sich besonders bei sogenannten Bon-Journalrollen, die zum Beispiel in Kassendruckern zu bedrucken sind. Bei einer Verformung bzw. Verzerrung des Blattmaterials in vorstehend beschriebener Weise ist dann ein ordnungsgemäßes Bedrucken solcher Mehrfachbelege nicht mehr möglich.A transport device of this type is known from DE-OS 35 11 386. It works satisfactorily with a simple material web. If, however, the material web consists of several superimposed webs, which are wound together on a roll, the individual webs can shift relative to one another, which is due to the different web lengths of the web Wraps lead to bulges or loops, which then form folds in the transport gap between the transport and pressure rollers and deform the material webs overall so that proper further transport is no longer possible. Such phenomena are particularly evident in so-called receipt journal rolls, which can be printed on, for example, in cash register printers. If the sheet material is deformed or distorted in the manner described above, it is then no longer possible to properly print such multiple documents.

EP-A-0 233 456 betrifft eine Einrichtung, mit der eine Vielzahl von nebeneinander liegenden Papierbahnen mit konstanter Spannung vorwärtsbewegbar ist. Diese Einrichtung offenbart zwei Rollen mit einer Ummantelung, die aus elastischweichem Material besteht: dank der Elastizität dieses Materials erfolgt ein Abflachen der Ummantelung über eine gerade Strecke, somit werden alle Papierbahnen gleichmäßig beansprucht.EP-A-0 233 456 relates to a device with which a multiplicity of adjacent paper webs can be moved forward with constant tension. This device discloses two rolls with a covering made of an elastically soft material: thanks to the elasticity of this material, the covering is flattened over a straight distance, so that all paper webs are evenly stressed.

Der Erfindung liegt die Aufgabe zugrunde, eine Transportvorrichtung der eingangs genannten Art anzugeben, bei der Transportfehler der vorstehend beschriebenen Art nicht mehr auftreten, so daß auch bei mehrlagigen Materialbahnen ein einwandfreier und gleichmäßiger Transport sämtlicher Lagen durch den Transportspalt gewährleistet ist.The invention has for its object to provide a transport device of the type mentioned, in which transport errors of the type described above no longer occur, so that even with multi-layer material webs a perfect and uniform transport of all layers through the transport gap is guaranteed.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Andruckrolle die Form eines geraden hohlen beidendig offenen Prismas mit gleichbleibender Wandstärke über seinen gesamten Umfang hat und daß die Andruckrolle auf einer den Prismenhohlraum mit Spiel durchsetzenden Welle gelagert ist.This object is achieved in that the pressure roller has the form of a straight hollow prism open at both ends with a constant wall thickness over its entire circumference and that the pressure roller is mounted on a shaft penetrating the prism cavity with play.

Die Andruckrolle führt unter diesen Umständen zwei Bewegungen aus: Im gekrümmten Kantenbereich dreht sie sich um die Drehachse ihrer Welle, so daß sie sich auf dem Umfang der Transportrolle bzw. auf der zu transportierenden Materalbahn abwälzt. Zwischen den Kanten führt sie eine translatorische Bewegung aus, wobei sie von der Materialbahn mitgenommen wird und sich relativ zu ihrer Welle verschiebt. Es hat sich überraschenderweise gezeigt, daß die unmittelbar mit der Andruckrolle in Kontakt stehende Lage der Materialbahn nur dann im Vergleich zur anderen von der Transportrolle mitgenommenen Materialbahn zurückbleibt, wenn der Kantenbereich der Andruckrolle die Kontaktfläche mit der Transportrolle bildet, d.h. die Andruckrolle sich auf der Materialbahn abwälzt. Hierbei hat es sich als besonders vorteilhaft für einen ruhigen Lauf der Materialbahn erwiesen,wenn die Andruckrolle abgerundete Kanten hat. Diese positive Eigenschaft wird in vorteilhafter Weise noch dadurch verstärkt, wenn der Krümmungsradius der abgerundeten Kantenbereiche der Innenumfangsfläche des Prismenhohlraums gleich dem Radius der Welle ist. Während der translatorischen Bewegungsabschnitte der Andruckrolle tritt kein Schlupf zwischen den Lagen der Materialbahn auf. Der Querschnitt des Prismas kann dabei eine beliebige polygonale Form haben. Vorzugsweise ist er quadratisch oder dreieckig, wobei die Kanten in der vorstehend beschriebenen Art abgerundet sein können.Under these circumstances, the pressure roller performs two movements: in the curved edge region, it rotates about the axis of rotation of its shaft, so that it rolls on the circumference of the transport roller or on the material web to be transported. It performs a translatory movement between the edges, taking off the material web is taken along and shifts relative to their wave. It has surprisingly been found that the position of the material web that is directly in contact with the pressure roller only remains in comparison to the other material web carried by the transport roller when the edge region of the pressure roller forms the contact surface with the transport roller, that is to say the pressure roller forms on the material web passes on. Here, it has proven to be particularly advantageous for the material web to run smoothly if the pressure roller has rounded edges. This positive property is advantageously enhanced if the radius of curvature of the rounded edge regions of the inner circumferential surface of the prism cavity is equal to the radius of the shaft. No slip occurs between the layers of the material web during the translational movement sections of the pressure roller. The cross section of the prism can have any polygonal shape. It is preferably square or triangular, and the edges can be rounded in the manner described above.

In der aus der DE-OS 35 11 387 bekannten Weise können mehrere Andruckrollen vorgesehen sein, die mit axialem Abstand auf derselben Welle angeordnet sind, wobei die Welle mittig zwischen den Anruckrollen um eine Achse schwenkbar gelagert ist, die senkrecht zu einer die Achsen der Transport- und Andruckrollen enthaltenden Ebene ist.In the manner known from DE-OS 35 11 387, a plurality of pressure rollers can be provided, which are arranged at an axial distance on the same shaft, the shaft being pivotably mounted in the center between the pressure rollers about an axis which is perpendicular to the axes of the transport - And pressure roller containing level.

Die folgende Beschreibung erläutert in Verbindung mit den beigefügten Zeichnungen die Erfindung anhand von Ausführungsbeispielen. Es zeigen:

Fig. 1
einen schematisch vereinfachten Schnitt durch die erfindungsgemäße Transportvorrichtung senkrecht zu den Achsen der Transport- und Andruckrolle,
Fig. 2
eine schematische Darstellung des Bewegungsablaufes der in Figur 1 dargestellten Andruckrolle und
Fig. 3
einen achsnormalen Schnitt durch eine andere Ausführungsform einer Andruckrolle.
The following description in conjunction with the accompanying drawings explains the invention using exemplary embodiments. Show it:
Fig. 1
a schematically simplified section through the transport device according to the invention perpendicular to the axes of the transport and pressure roller,
Fig. 2
a schematic representation of the movement of the pressure roller shown in Figure 1 and
Fig. 3
an axis-normal section through another embodiment of a pressure roller.

In Figur 1 ist mit 10 eine Papierbahn bezeichnet, die zwei Lagen 12 und 14 umfaßt. Die Papierbahn 10 läuft zwischen einer Transportrolle 16 und einer Andruckrolle 18 hindurch, die in Richtung der Pfeile 20 und 22 gegeneinander gespannt sind. Die Transportrolle 16 kann zumindest in ihrem Umfangsbereich aus einem elastisch verformbaren Material bestehen.In Figure 1, 10 denotes a paper web which comprises two layers 12 and 14. The paper web 10 runs between a transport roller 16 and a pressure roller 18 which are tensioned against one another in the direction of the arrows 20 and 22. The transport roller 16 can consist of an elastically deformable material at least in its peripheral region.

Die Andruckrolle 18 hat die Form eines geraden hohlen beidendig offenen Prismas mit quadratischem Querschnitt, wobei die Kanten dieses Prismas kreisbogenförmig abgerundet sind. Die Wandstärke d der prismatischen Andruckrolle 18 ist überall, d.h. sowohl in den geraden als auch in den gekrümmten Wandabschnitten gleich. Der Krümmungsradius r der Innenumfangsfläche in den Kantenbereichen ist gleich dem Radius einer Welle 24, welche den Hohlraum der Andruckrolle 18 axial durchsetzt.The pressure roller 18 has the shape of a straight, hollow, open-ended prism with a square cross section, the edges of this prism being rounded in a circular arc. The wall thickness d of the prismatic pressure roller 18 is everywhere, i.e. the same in both the straight and curved wall sections. The radius of curvature r of the inner peripheral surface in the edge regions is equal to the radius of a shaft 24 which axially penetrates the cavity of the pressure roller 18.

Diese prismatische Form der Andruckrolle 18 in Verbindung mit ihrer schwimmenden Lagerung auf der Welle 24 führt zu einer Bewegung der Andruckrolle 18, deren Phasen in der Figur 2 von links nach rechts fortschreitend für eine Viertelumdrehung der Andruckrolle 18 dargestellt sind. Unter der Voraussetzung des in der Figur 1 durch den Pfeil 26 angegebenen Drehsinnes der Transportrolle 16 bewegt sich die Andruckrolle 18 zunächst translatorisch zusammen mit der Papierbahn 10, bis die Welle 24 in der linken Ecke der Andruckrolle 18 anstößt (mittleres Bild der Figur 2). Es hat sich gezeigt, daß während dieser Bewegungsphase keine Verschiebung der Lagen 12 und 14 relativ zueinander auftritt. Anschließend dreht sich die Andruckrolle 18 um die Welle 24 (Figur 2, 4. Bild von links), bis sie wieder mit ihrer folgenden Flachseite auf der Papierbahn 10 aufliegt (Figur 2, rechtes Bild). Bei dieser Abwälzbewegung kann unter Umständen eine Verschiebung der Lagen 12 und 14 gegeneinander erfolgen. Somit kann bei der vorstehend beschriebenen Vorrichtung eine Verschiebung der Lagen 12 und 14 der Papierbahn 10 relativ zueinander zwar nicht 100%-ig ausgeschlossen, jedoch erheblich verringert werden.This prismatic shape of the pressure roller 18 in connection with its floating mounting on the shaft 24 leads to a movement of the pressure roller 18, the phases of which are shown in FIG. 2 progressively from left to right for a quarter turn of the pressure roller 18. Assuming the direction of rotation of the transport roller 16 indicated by the arrow 26 in FIG. 1, the pressure roller 18 first moves in a translatory manner together with the paper web 10 until the shaft 24 in the left corner of the pressure roller 18 abuts (middle picture of Figure 2). It has been shown that there is no displacement of the layers 12 and 14 relative to one another during this movement phase. The pressure roller 18 then rotates around the shaft 24 (FIG. 2, 4th picture from the left) until it rests with its following flat side on the paper web 10 (FIG. 2, right picture). During this rolling movement, the layers 12 and 14 can be shifted against each other under certain circumstances. Thus, in the device described above, a displacement of the layers 12 and 14 of the paper web 10 relative to one another cannot be ruled out 100%, but can be considerably reduced.

Figur 3 zeigt eine Ausführungsform einer Andruckrolle 18, die einen dreieckigen Querschnitt anstelle des in der Figur 1 dargestellten quadratischen Querschnittes aufweist. Der Bewegungsablauf bei einer Umdrehung dieser Andruckrolle erfolgt in der gleichen Weise, wie dies anhand der Figur 2 beschrieben wurde.FIG. 3 shows an embodiment of a pressure roller 18 which has a triangular cross section instead of the square cross section shown in FIG. 1. The course of movement during one revolution of this pressure roller takes place in the same manner as was described with reference to FIG. 2.

Claims (5)

  1. Conveying device for multi-layer webs of material (10), in particular multi-layer record carriers in a printing device, having at least one conveying roller (16) and at least one pressure roller (18) which is assigned to the latter and has an axis parallel to the axis of the conveying roller, the conveying roller (16) and the pressure roller (18) being prestressed in the radial direction against each other, characterised in that the pressure roller (18) has the form of a straight hollow prism, open at both ends, with a wall thickness remaining constant over its entire periphery and in that the pressure roller (18) is mounted on a shaft (24) passing with play through the prism cavity.
  2. Conveying device according to Claim 1, characterised in that the prism has rounded-off edges.
  3. Conveying device according to Claim 1 or 2, characterised in that the radius of curvature (r) of the rounded-off edge regions of the inner peripheral surface of the prism cavity is equal to the radius of the shaft (24).
  4. Conveying device according to Claim 1, 2 or 3, characterised in that the prism has a square cross-section.
  5. Conveying device according to Claim 1, 2 or 3, characterised in that the prism has a triangular cross-section.
EP89113167A 1988-09-09 1989-07-18 Conveying device for multi-layer webs Expired - Lifetime EP0357916B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8811453U DE8811453U1 (en) 1988-09-09 1988-09-09 Transport device for multi-layer material webs
DE8811453U 1988-09-09

Publications (3)

Publication Number Publication Date
EP0357916A2 EP0357916A2 (en) 1990-03-14
EP0357916A3 EP0357916A3 (en) 1990-10-17
EP0357916B1 true EP0357916B1 (en) 1993-10-13

Family

ID=6827775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113167A Expired - Lifetime EP0357916B1 (en) 1988-09-09 1989-07-18 Conveying device for multi-layer webs

Country Status (5)

Country Link
US (1) US4966360A (en)
EP (1) EP0357916B1 (en)
JP (1) JPH0518359Y2 (en)
DE (2) DE8811453U1 (en)
ES (1) ES2045287T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439544A (en) * 1993-09-20 1995-08-08 Chesapeake Corporation No-crush roll system and method in a double backer
TWI338620B (en) * 2007-06-28 2011-03-11 Lite On Technology Corp Paper feeding apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US503276A (en) * 1893-08-15 Sheet-feeding mechanism
FR726580A (en) * 1930-11-21 1932-05-31 Accounting & Tabulating Corp Improvements to back pressure members for sheet feeding machines and the like
DE1213951B (en) * 1959-12-16 1966-04-07 Fortuna Werke Spezialmaschinen Link roller for band knife splitting machines
US3411686A (en) * 1966-05-25 1968-11-19 Mohawk Data Sciences Corp Paper puller
FI49814C (en) * 1968-01-24 1975-10-10 Jagenberg Werke Ag Device for smoothly pulling out the private layers of a multilayer paper, board or similar web.
US3937455A (en) * 1974-04-01 1976-02-10 Telautograph Corporation Automatic stack feed
JPS56136748A (en) * 1980-12-23 1981-10-26 Nippon Kaihatsu Consultant:Kk Tension applying apparatus for band steel
DE3323819A1 (en) * 1983-07-01 1985-01-10 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Pressure roller, especially of a pair of conveying rollers for corrugated cardboard
DE3545304A1 (en) * 1985-12-20 1987-07-02 Helmut Steinhilber Device for conveying thin materials such as leaves, sheets and webs in particular of paper
IT1188295B (en) * 1986-01-22 1988-01-07 Cerutti Spa Off Mec MEANS FOR CONSTANT VOLTAGE FEEDING A PLURALITY OF PAPER BANDS

Also Published As

Publication number Publication date
JPH02108961U (en) 1990-08-30
ES2045287T3 (en) 1994-01-16
EP0357916A3 (en) 1990-10-17
DE58905897D1 (en) 1993-11-18
JPH0518359Y2 (en) 1993-05-17
EP0357916A2 (en) 1990-03-14
DE8811453U1 (en) 1990-01-18
US4966360A (en) 1990-10-30

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