EP0728693B1 - An apparatus for transporting a web through stations of a working plant - Google Patents

An apparatus for transporting a web through stations of a working plant Download PDF

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Publication number
EP0728693B1
EP0728693B1 EP96100799A EP96100799A EP0728693B1 EP 0728693 B1 EP0728693 B1 EP 0728693B1 EP 96100799 A EP96100799 A EP 96100799A EP 96100799 A EP96100799 A EP 96100799A EP 0728693 B1 EP0728693 B1 EP 0728693B1
Authority
EP
European Patent Office
Prior art keywords
web
stations
tape
carrier tape
holes
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
EP96100799A
Other languages
German (de)
French (fr)
Other versions
EP0728693A2 (en
EP0728693A3 (en
Inventor
Rainer Melzer
Roland Melzer
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.)
Melzer Maschinenbau GmbH
Original Assignee
Melzer Maschinenbau 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 Melzer Maschinenbau GmbH filed Critical Melzer Maschinenbau GmbH
Publication of EP0728693A2 publication Critical patent/EP0728693A2/en
Publication of EP0728693A3 publication Critical patent/EP0728693A3/en
Application granted granted Critical
Publication of EP0728693B1 publication Critical patent/EP0728693B1/en
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
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/16—Associating two or more 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
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B65H20/08—Advancing webs by friction band to effect step-by-step advancement of web
    • 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
    • B65H20/10—Advancing webs by a feed band against which web is held by fluid pressure, e.g. suction or air blast
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • 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
    • B65H2701/19—Specific article or web
    • B65H2701/1912—Banknotes, bills and cheques or the like

Definitions

  • the present invention relates to an apparatus for transporting a web through a plurality of stations of a working plant according to the preamble of claim 1.
  • the material web is transported through a plurality of working stations, for example printing stations, milling stations for milling a recess into which a chip is to be embedded, punching stations and the like.
  • the web has a width exceeding that used for the cards, and the excess margins are provided series of holes, the series extending parallel to the transportation direction, and the holes being spaced from one another by accurately repeated distances.
  • pins engage into the holes so as to hold the web portion between the pins in a tensioned state.
  • the web is stepwisely transported from station to station by means of clamps which do not engage the holes but hold the web in a pinching operation.
  • the material consumption is higher than necessary because of the margins to be provided for the series of holes thereby increasing the costs of manufacture, in particular if expensive materials as e.g. poly carbonate are used.
  • the tensioning systems provided at each station for the web render the plant complex, susceptible to trouble, and the distance between stations must be larger than necessary for the very working.
  • US-A-4 810 006 discloses an adhesive coating to the secondary layer of the carrier material. Such an adhesive coating on the carrier material is a part of the carrier material.
  • the apparatus of the present invention is defined in the characterizing part of claim 1.
  • the width of the web from which cards are to be produced need not exceed that necessary for the cards themselves as the lateral perforated margin is provided on the tape.
  • the tape may be tensioned over all stations by one single tensioning means so that the stations need not have such means.
  • the tape may be made of a material which resists the working environment. Steel is preferred but plastic, e.g. polyester, may be suited as well. Perforation of a steel tape may be performed with extreme precision before the tape is closed to form the loop by, e.g. plasma welding.
  • the displacement means preferably comprises drums having circumferentially disposed sprockets in engagement with the carrier tape holes.
  • the carrier tape preferably is looped around a first driving drum and a second driven drum, and the distance spacing the drum axes defines the tension of the tape.
  • the axis of the driving drum is stationary while the axis of the driven drum is displaceable so that the distance between the axes may be varied in order to adjust the tape tension.
  • tension adjustment may be advisable in response to temperature variations.
  • various other reasons may cause variation of the tape tension so that it is preferred to control the tension in response to the measured distance between adjacent holes.
  • stepping motors drive the sprocket drum in order to displace the carrier tape by a predetermined stroke.
  • the engagement between the sprockets and the holes provides for an unambigous relation between the number of pulses supplied to the stepping motor and the stroke through which the carrier tape is displaced.
  • the "web” may consist of a series of cards already stamped from a substrate or laminate.
  • the invention is applicable to webs of plastic as well as webs made of cardboard.
  • the working stations 10, 12, 14, 16 are only schematically indicated. They may be four printing stations, one for each of the colors red, blue, yellow and one for black.
  • the substrate web 18 to be printed on passes over a guiding drum 20 towards carrier tape 22 which surrounds a driving drum 24 and a driven drum 26.
  • the drums rotate in accordance with arrow 28, driven by a stepping motor (not shown).
  • Driven drum 26 is displaceable in direction of arrow 30 in response to ambien temperature variations.
  • a strip 32 of plastic is coated on both of its faces with an adhesive or bonding material.
  • the strip is wound on bobbin 34 and fed between web 18 and carrier tape 22. Downstream of station 10, the strip is released from both carrier tape 22 and web 18 and is discarded.
  • a plurality of narrow ribbons may be used.
  • Fig. 2 is a partial section view of the driven drum 26 having sprockets 36 in engagement with holes 38 of tape 22.
  • the web 18 is held on carrier tape 22 by small upstanding stampings 39 cut from tape 22 and angled upwards.

Description

The present invention relates to an apparatus for transporting a web through a plurality of stations of a working plant according to the preamble of claim 1.
In the fabrication of plastic cards, as credit cards, cheque cards, telephone cards and the like, the material web is transported through a plurality of working stations, for example printing stations, milling stations for milling a recess into which a chip is to be embedded, punching stations and the like. In the prior art, the web has a width exceeding that used for the cards, and the excess margins are provided series of holes, the series extending parallel to the transportation direction, and the holes being spaced from one another by accurately repeated distances. In each of the working stations, pins engage into the holes so as to hold the web portion between the pins in a tensioned state. The web is stepwisely transported from station to station by means of clamps which do not engage the holes but hold the web in a pinching operation.
Such systems of the prior art have a number of drawbacks.
The material consumption is higher than necessary because of the margins to be provided for the series of holes thereby increasing the costs of manufacture, in particular if expensive materials as e.g. poly carbonate are used.
While the regular hole spacing results in very accurate alignment but only for one given size of card. For each different size, another punching tool must be provided. When the plant is set up, the number of rejects is relatively high as the web may be transported in one direction only. This again increases the manufacturing costs.
The tensioning systems provided at each station for the web render the plant complex, susceptible to trouble, and the distance between stations must be larger than necessary for the very working.
For a temporary fixing of a material web on a carrier material US-A-4 810 006 discloses an adhesive coating to the secondary layer of the carrier material. Such an adhesive coating on the carrier material is a part of the carrier material.
It is an object of the present invention to provide an apparatus for transporting a solid or laminated web through a plurality of stations in a working plant permitting transportation without wear, through steps of selectable size, and in both directions whereby the working stations may be simplified and disposed closer to one another.
The apparatus of the present invention is defined in the characterizing part of claim 1.
It will be understood that the width of the web from which cards are to be produced need not exceed that necessary for the cards themselves as the lateral perforated margin is provided on the tape. Further, the tape may be tensioned over all stations by one single tensioning means so that the stations need not have such means.
The tape may be made of a material which resists the working environment. Steel is preferred but plastic, e.g. polyester, may be suited as well. Perforation of a steel tape may be performed with extreme precision before the tape is closed to form the loop by, e.g. plasma welding.
The displacement means preferably comprises drums having circumferentially disposed sprockets in engagement with the carrier tape holes. The carrier tape preferably is looped around a first driving drum and a second driven drum, and the distance spacing the drum axes defines the tension of the tape. In a preferred embodiment, the axis of the driving drum is stationary while the axis of the driven drum is displaceable so that the distance between the axes may be varied in order to adjust the tape tension. Such tension adjustment may be advisable in response to temperature variations. However, various other reasons may cause variation of the tape tension so that it is preferred to control the tension in response to the measured distance between adjacent holes.
Preferably, stepping motors drive the sprocket drum in order to displace the carrier tape by a predetermined stroke. The engagement between the sprockets and the holes provides for an unambigous relation between the number of pulses supplied to the stepping motor and the stroke through which the carrier tape is displaced.
It is to be understood that the "web" may consist of a series of cards already stamped from a substrate or laminate. The invention is applicable to webs of plastic as well as webs made of cardboard.
The attached drawings illustrate the present invention.
  • Fig. 1 is a schematic sideview of a card making plant,
  • Fig. 2 is a partial section view of drum 26 in Fig. 1.
    • In Fig. 1, the working stations 10, 12, 14, 16 are only schematically indicated. They may be four printing stations, one for each of the colors red, blue, yellow and one for black. The substrate web 18 to be printed on passes over a guiding drum 20 towards carrier tape 22 which surrounds a driving drum 24 and a driven drum 26. The drums rotate in accordance with arrow 28, driven by a stepping motor (not shown). Driven drum 26 is displaceable in direction of arrow 30 in response to ambien temperature variations.
    A strip 32 of plastic is coated on both of its faces with an adhesive or bonding material. The strip is wound on bobbin 34 and fed between web 18 and carrier tape 22. Downstream of station 10, the strip is released from both carrier tape 22 and web 18 and is discarded. Instead of the single broad strip 32 a plurality of narrow ribbons may be used.
    Fig. 2 is a partial section view of the driven drum 26 having sprockets 36 in engagement with holes 38 of tape 22. In addition to strip 32, the web 18 is held on carrier tape 22 by small upstanding stampings 39 cut from tape 22 and angled upwards.

    Claims (6)

    1. An apparatus for transporting a web (18) through a plurality of stations (10, 12, 14, 16) of a working plant, comprising:
      a carrier tape (22) extending across said stations (10, 12, 14, 16) and forming a closed loop,
      at least one series of holes (38) spaced by regular distances in longitudinal direction of said tape (22),
      means (24, 26, 36) for stepwisely displacing said carrier tape (22) by cooperation with said holes (38),
      means for holding said web (18) on one face of said carrier tape (22),
      characterized in that
      said means for holding include a strip (32) having two main faces, each face being provided with an adhesive bonding agent, and
      means (34) to feed said strip (32) between said carrier tape (22) and said web (18) upstream of said stations (10, 12, 14, 16),
      said bonding agent being selected to be released from said carrier tape (22) and said web (18) downstream of said stations (10, 12, 14, 16).
    2. The apparatus of claim 1 wherein said tape (22) is made of a material selected from the group comprising steel and plastic.
    3. The apparatus of claim 1 wherein said means (24, 26, 36) for displacing comprise drums (24, 26), at least one of said drums (24, 26) having circumferentially disposed sprockets (36) in engagement with said tape holes (38).
    4. The apparatus of claim 3 wherein said carrier tape (22) is held under tension between two drums (24, 26).
    5. The apparatus of claim 4 wherein said tension is adjustable.
    6. The apparatus of claim 5 wherein said tension is adjustable in response to temperature variations.
    EP96100799A 1995-02-23 1996-01-20 An apparatus for transporting a web through stations of a working plant Expired - Lifetime EP0728693B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19506194 1995-02-23
    DE19506194A DE19506194A1 (en) 1995-02-23 1995-02-23 Device for conveying a web through stations of a plant

    Publications (3)

    Publication Number Publication Date
    EP0728693A2 EP0728693A2 (en) 1996-08-28
    EP0728693A3 EP0728693A3 (en) 1997-04-16
    EP0728693B1 true EP0728693B1 (en) 2000-07-12

    Family

    ID=7754770

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96100799A Expired - Lifetime EP0728693B1 (en) 1995-02-23 1996-01-20 An apparatus for transporting a web through stations of a working plant

    Country Status (3)

    Country Link
    EP (1) EP0728693B1 (en)
    JP (1) JPH08268606A (en)
    DE (2) DE19506194A1 (en)

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19723749A1 (en) 1997-06-06 1998-12-10 Koenig & Bauer Albert Ag Method and device for cross-cutting running printing material webs
    DE10009188A1 (en) * 2000-02-26 2001-08-30 Voith Paper Patent Gmbh Vacuum belt conveyor for paper web threading in production line, has vacuum blower positioned within the air-pervious endless belt loop to generate low pressure at inner side of conveying path
    EP1605098A1 (en) 2000-02-26 2005-12-14 Voith Paper Patent GmbH Vacuum belt conveyor

    Family Cites Families (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US1610818A (en) * 1925-01-31 1926-12-14 Spadone Machine Company Inc Feeding mechanism
    DE2949685A1 (en) * 1979-12-11 1981-06-19 Focke & Co, 2810 Verden DEVICE FOR PRODUCING PACKAGE CUTS BY SEPARATING FROM A CONTINUOUS TRAIN
    ATE29235T1 (en) * 1983-07-01 1987-09-15 Roland Melzer PROCESS FOR MAKING PLASTIC CARDS.
    US4810006A (en) * 1987-05-26 1989-03-07 Katz Marcella M Stabilized sheet materials for use with computer-directed printers and method of stabilizing same for computer printers
    JPH06220781A (en) * 1993-01-28 1994-08-09 Kanebo Ltd Printing method and apparatus therefor

    Also Published As

    Publication number Publication date
    DE69609215T2 (en) 2001-03-08
    DE69609215D1 (en) 2000-08-17
    EP0728693A2 (en) 1996-08-28
    EP0728693A3 (en) 1997-04-16
    DE19506194A1 (en) 1996-08-29
    JPH08268606A (en) 1996-10-15

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