WO2003084848A1 - Angled product transfer conveyor - Google Patents

Angled product transfer conveyor Download PDF

Info

Publication number
WO2003084848A1
WO2003084848A1 PCT/US2003/004269 US0304269W WO03084848A1 WO 2003084848 A1 WO2003084848 A1 WO 2003084848A1 US 0304269 W US0304269 W US 0304269W WO 03084848 A1 WO03084848 A1 WO 03084848A1
Authority
WO
WIPO (PCT)
Prior art keywords
vacuum
rotary die
die cutter
perforated belt
sub
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.)
Ceased
Application number
PCT/US2003/004269
Other languages
English (en)
French (fr)
Inventor
Scott A. Ripley
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to EP03709073A priority Critical patent/EP1492720B1/en
Priority to JP2003582059A priority patent/JP4184981B2/ja
Priority to CA 2480938 priority patent/CA2480938A1/en
Priority to DE60328763T priority patent/DE60328763D1/de
Priority to KR10-2004-7015576A priority patent/KR20040091159A/ko
Priority to AU2003213031A priority patent/AU2003213031A1/en
Priority to AT03709073T priority patent/ATE439326T1/de
Publication of WO2003084848A1 publication Critical patent/WO2003084848A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction 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
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/08—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with revolving, e.g. cylinder, cutters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/241—Suction devices
    • B65H29/242—Suction bands or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/32—Suction belts
    • B65H2406/322—Suction distributing means
    • B65H2406/3221—Suction distributing means for variable distribution in the direction of transport
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B65H2511/214—Inclination
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096—Means to move product out of contact with tool
    • Y10T83/21—Out of contact with a rotary tool
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2183—Product mover including gripper means
    • Y10T83/2185—Suction gripper
    • 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
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6472—By fluid current

Definitions

  • This invention relates to a vacuum conveyor for transporting pattern-cut sheet materials which may be used to advantage in conjunction with rotary die cutting apparatus.
  • U.S. Pat. No. 3,285,112 discloses a method and apparatus for sheet handling which includes use of a vacuum belt having a continuous row of spaced perforations along its central longitudinal line which interacts with a single vacuum chamber.
  • the disclosed vacuum belt receives a sheet from a knife cutting mechamsm and releases the sheet to a sheet stacking mechanism.
  • U.S. Pat. No. 3,861,259 discloses a method and apparatus for transporting sheets cut by use of a knife cutting mechanism employing vacuum belt mechanisms.
  • U.S. Pat. No. 5,078,375 discloses a method and apparatus for transporting webs employing a vacuum drum which also serves as an anvil for cutting the webs.
  • the present invention provides a vacuum conveyor for transporting sheet materials comprising an endless perforated belt which extends over a first vacuum plate having first longitudinal openings and over a second vacuum plate having second longitudinal openings, where the first and second vacuum plates are situated at different angles relative to horizontal.
  • the first and second longitudinal openings in the first and second vacuum plates may communicate with first and second vacuum chambers, respectively, maintained at first and second sub-ambient air pressures.
  • the present invention provides an apparatus for cutting and transporting sheet materials comprising a vacuum conveyor comprising an endless perforated belt which extends over first and second vacuum plates, which may be maintained at different pressures and angles relative to horizontal, and a rotary die cutter.
  • the rotary die cutter is adapted to cut a continuous web into cut workpieces, and the vacuum conveyor and rotary die cutter are arranged such that an emerging portion of a cut workpiece may become held by the vacuum conveyor before it is fully separated from the continuous web.
  • the drive mechanism for propelling the endless perforated belt may be geared with the rotary die cutter so that the linear surface velocity of the endless perforated belt is equal to or more typically greater than the linear surface velocity of the rotary die cutter.
  • Fig. 1 illustrates a vacuum conveyor according to the present invention.
  • Fig. 2 illustrates the vacuum conveyor depicted in Fig. 1 without the endless perforated belt.
  • a vacuum conveyor according to the present invention comprises endless perforated belt 10 perforated with belt holes 11.
  • the belt may be made of any suitable material, including polymers, rubbers, fabrics, composites, and the like, provided that the outer surface is compatible with the workpieces to be transported on the belt.
  • Endless perforated belt 10 passes over first vacuum plate 20 having longitudinal openings 21 and second vacuum plate 30 having longitudinal openings 31.
  • Belt holes 11 are arranged in rows aligned with longitudinal openings 21 , 31.
  • each vacuum plate 20, 30 has at least two longitudinal openings 21, 31 aligned with at least two rows of belt holes 11.
  • each vacuum plate 20, 30 has four or more longitudinal openings 21, 31 aligned with four or more rows of belt holes 11, so as to enable the vacuum conveyor to grip workpieces of varying sizes across the majority of their width.
  • workpieces might include thin sheet materials die-cut in arbitrary shapes, as discussed more fully below, hi the embodiment as depicted, endless perforated belt 10 is typically driven in the clockwise direction toward the vacuum plate which angles downward for delivery of the workpiece.
  • First and second vacuum chambers are maintained at first and second sub-ambient air pressures, such that the sub-ambient air pressures tend to hold workpieces to endless perforated belt 10.
  • First and second sub-ambient air pressures may be the same or different. Where first and second sub-ambient air pressures are different, the first sub- ambient air pressure is typically less than the second, enabling the conveyor to better hold workpieces coming onto the conveyor at locations over first vacuum plate 20 and release workpieces leaving the conveyor from locations over second vacuum plate 30.
  • the first and second vacuum chambers are maintained at first and second sub-ambient air pressures by any suitable means.
  • the vacuum chambers may be functionally connected to one or more sources of sub-ambient air pressure such as vacuum pumps and the like.
  • First vacuum plate 20 is situated at a first angle relative to horizontal, which is approximately 0°.
  • Second vacuum plate 30 is situated at second angle relative to horizontal, which is approximately -45°.
  • the first and second angles are not equal.
  • the first angle is between 30° and -30° relative to horizontal and said second angle is between -30° and -90° relative to horizontal. More typically, the first angle is between 5° and -5° relative to horizontal and said second angle is between -40° and -50° relative to horizontal.
  • First and second vacuum plates 20, 30 are mounted to a frame made up of one or more frame elements 40.
  • Endless perforated belt 10 passes over a number of rollers 60, 70 rotatably mounted to frame elements 40.
  • a first roller is hidden in Figs. 1 and 2 by transfer plate 50.
  • Endless perforated belt 10 passes over a second roller 60 and a third roller 70.
  • Endless perforated belt 10 also passes through drive mechanism 80 powered by servo motor 90.
  • the conveyor according to the present invention may be used to advantage in concert with a rotary die cutter which cuts workpieces from a web of workpiece material.
  • the vacuum conveyor and the rotary die cutter are arranged such that an emerging portion of a workpiece being cut from the web of workpiece material can become held by the action of the first sub-ambient pressure in the first vacuum chamber, drawing air through the first vacuum plate and the endless perforated belt, before the workpiece is fully separated from the web of workpiece material.
  • the drive mechanism for propelling the endless perforated belt may be geared with the drive mechanism driving the rotary die cutter. Gearing may be accomplished by any suitable method of gearing or synchronization, including mechanical and electronic gearing.
  • the linear surface velocity of the endless perforated belt may be equal to or greater than the linear surface velocity of the rotary die cutter. A greater velocity enables the conveyor to space apart workpieces as they emerge from the cutter.
  • this web is catalyst decal material, which comprises a thin layer of a catalyst dispersion on a backing layer.
  • the conveyor according to the present invention transports pattern-cut workpieces of this catalyst decal material from a rotary die cutter to a laminating nip. At the laminating nip, the catalyst is laminated onto a membrane, which is polymer electrolyte membrane, to form a membrane electrode assembly used in the manufacture of fuel cells. The decal backing layer is subsequently removed.
  • two rotary die cutters and two vacuum belt conveyors are employed to deliver symmetrical workpieces to each side of the laminating nip simultaneously.
  • the conveyors according to the present invention can take hold of pattern-cut workpieces before they are fully cut and transport them under positive grip, and can therefore deliver them to both sides of the laminating nip simultaneously with accurate registration.
  • This invention is useful in the manufacture of articles laminated on two sides with pattern-cut sheet materials in accurate registration, which might include fuel cell membrane electrode assemblies.
  • Pattern-cut sheet materials or workpieces are typically shapes other than four-sided parallelograms, which might be made by knife cutting mechanisms. More typically, pattern-cut sheet materials or workpieces are die-cut or rotary die-cut.
  • Accurate registration typically means that the perimeters of the pattern- cut sheet materials match to within 1 mm, more typically 0.5 mm, more typically 250 ⁇ m, and more typically 125 ⁇ m.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Chain Conveyers (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Fish Paste Products (AREA)
  • Details Of Cutting Devices (AREA)
PCT/US2003/004269 2002-04-03 2003-02-11 Angled product transfer conveyor Ceased WO2003084848A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP03709073A EP1492720B1 (en) 2002-04-03 2003-02-11 Apparatus comprising a rotary die cutter and an angled product transfer conveyor
JP2003582059A JP4184981B2 (ja) 2002-04-03 2003-02-11 傾斜した製品移送コンベヤ
CA 2480938 CA2480938A1 (en) 2002-04-03 2003-02-11 Angled product transfer conveyor
DE60328763T DE60328763D1 (de) 2002-04-03 2003-02-11 Vorrichtung mit einem umlaufenden Stanzschneidwerkzeug und einem geknickten Produktübergabeförderer
KR10-2004-7015576A KR20040091159A (ko) 2002-04-03 2003-02-11 각도를 갖는 제품 전달 콘베이어
AU2003213031A AU2003213031A1 (en) 2002-04-03 2003-02-11 Angled product transfer conveyor
AT03709073T ATE439326T1 (de) 2002-04-03 2003-02-11 Vorrichtung mit einem umlaufenden stanzschneidwerkzeug und einem geknickten produktübergabeförderer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/116,323 2002-04-03
US10/116,323 US20030188615A1 (en) 2002-04-03 2002-04-03 Angled product transfer conveyor

Publications (1)

Publication Number Publication Date
WO2003084848A1 true WO2003084848A1 (en) 2003-10-16

Family

ID=28673953

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/004269 Ceased WO2003084848A1 (en) 2002-04-03 2003-02-11 Angled product transfer conveyor

Country Status (10)

Country Link
US (2) US20030188615A1 (enExample)
EP (1) EP1492720B1 (enExample)
JP (1) JP4184981B2 (enExample)
KR (1) KR20040091159A (enExample)
CN (1) CN100402398C (enExample)
AT (1) ATE439326T1 (enExample)
AU (1) AU2003213031A1 (enExample)
CA (1) CA2480938A1 (enExample)
DE (1) DE60328763D1 (enExample)
WO (1) WO2003084848A1 (enExample)

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US7432009B2 (en) 2002-04-03 2008-10-07 3M Innovative Properties Company Lamination apparatus and methods
US6868890B2 (en) * 2002-04-03 2005-03-22 3M Innovative Properties Company Method and apparatus for peeling a thin film from a liner
US20030188615A1 (en) * 2002-04-03 2003-10-09 3M Innovative Properties Company Angled product transfer conveyor
US6740131B2 (en) 2002-04-03 2004-05-25 3M Innovative Properties Company Apparatus for automatically fabricating fuel cell
US20030190226A1 (en) * 2002-04-03 2003-10-09 3M Innovative Properties Company Apparatus and method for singulating porous fuel cell layers using adhesive tape pick head
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US20030188615A1 (en) 2003-10-09
ATE439326T1 (de) 2009-08-15
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AU2003213031A1 (en) 2003-10-20
US7171881B2 (en) 2007-02-06
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JP2005521612A (ja) 2005-07-21
CA2480938A1 (en) 2003-10-16

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