EP0357916B1 - Transportvorrichtung für mehrlagige Materialbahnen - Google Patents

Transportvorrichtung für mehrlagige Materialbahnen 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)
English (en)
French (fr)
Other versions
EP0357916A3 (en
EP0357916A2 (de
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
Siemens Nixdorf Informationssysteme 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 Siemens Nixdorf Informationssysteme AG filed Critical Siemens Nixdorf Informationssysteme AG
Publication of EP0357916A2 publication Critical patent/EP0357916A2/de
Publication of EP0357916A3 publication Critical patent/EP0357916A3/de
Application granted granted Critical
Publication of EP0357916B1 publication Critical patent/EP0357916B1/de
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)
EP89113167A 1988-09-09 1989-07-18 Transportvorrichtung für mehrlagige Materialbahnen Expired - Lifetime EP0357916B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8811453U DE8811453U1 (de) 1988-09-09 1988-09-09 Transportvorrichtung für mehrlagige Materialbahnen
DE8811453U 1988-09-09

Publications (3)

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

Family

ID=6827775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113167A Expired - Lifetime EP0357916B1 (de) 1988-09-09 1989-07-18 Transportvorrichtung für mehrlagige Materialbahnen

Country Status (5)

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

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 (fr) * 1930-11-21 1932-05-31 Accounting & Tabulating Corp Perfectionnements aux organes de contre-pression pour machines à alimentation en feuilles et analogues
DE1213951B (de) * 1959-12-16 1966-04-07 Fortuna Werke Spezialmaschinen Gliederwalze fuer Bandmesserspaltmaschinen
US3411686A (en) * 1966-05-25 1968-11-19 Mohawk Data Sciences Corp Paper puller
FI49814C (fi) * 1968-01-24 1975-10-10 Jagenberg Werke Ag Laite monikerroksisen paperi-, kartonki- tms. radan yksityisten kerros ten tasaiseksi ulosvetämiseksi.
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 (de) * 1983-07-01 1985-01-10 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Andrueckwalze, insbesondere eines foerderwalzenpaares fuer wellpappe
DE3545304A1 (de) * 1985-12-20 1987-07-02 Helmut Steinhilber Vorrichtung zum transportieren von duennen werkstoffen wie blaettern, bogen und bahnen insb. aus papier
IT1188295B (it) * 1986-01-22 1988-01-07 Cerutti Spa Off Mec Mezzi per alimentare a tensione costante una pluralita' di bande di carta

Also Published As

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

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