US3279786A - Pneumatic apparatus for individually separating flat items - Google Patents

Pneumatic apparatus for individually separating flat items Download PDF

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Publication number
US3279786A
US3279786A US375556A US37555664A US3279786A US 3279786 A US3279786 A US 3279786A US 375556 A US375556 A US 375556A US 37555664 A US37555664 A US 37555664A US 3279786 A US3279786 A US 3279786A
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US
United States
Prior art keywords
suction
article
articles
nozzles
stack
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
US375556A
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English (en)
Inventor
Fliegner Horst
Hinz Werner
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US3279786A publication Critical patent/US3279786A/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H11/00—Feed tables
    • B65H11/002—Feed tables incorporating transport belts
    • B65H11/005—Suction 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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile
    • B65H3/124—Suction bands or belts
    • B65H3/126—Suction bands or belts separating from the bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/56—Elements, e.g. scrapers, fingers, needles, brushes, acting on separated article or on edge of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/224—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction 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
    • B65H2406/323—Overhead suction belt, i.e. holding material against gravity

Definitions

  • This invention relates to apparatus for individually pulling flat items off a pile of such items, and, more particularly, to apparatus for individually pulling flat items off a pile of such items at a rate which is determined by the lengths of the items themselves.
  • Some systems utilize complex photoelectric arrangements or sensing arrangements to sense the trailing edge of conveyed items so that a second document can be conveyed a predetermined distance behind the trailing edge of a first document. Apparatus for accomplishing this has heretofore been complex and expensive.
  • a feature of our invention is the provision of apparatus for individually pulling fiat items olf a stack of such items comprising suction means for effecting a pull-off of the items wherein the suction supplied to the suction means is interrupted by the conveyed articles themselves.
  • Guide 1 in the view of the drawing, guides the first article 2 of a stack 3 of flat articles to a predetermined position with respect to suction nozzles 4a positioned along side 4 of chamber 5.
  • Perforated belt 6 is led past and between suction nozzles 4a and leading article 2 to a conveying system 7 via idler pulley 8 and driver pulley 9.
  • Conveying channel 7 is formed by a portion of belt 6 in cooperation with another perforated belt 10.
  • Suction nozzles 41 are connected to a source of suction air via flexible tube 11 which is disposed below channel 7 and connects chamber to a chamber 12.
  • Chamber 12 has suction nozzles 13:: along side 13, in cooperative relationship with suction nozzles 14a disposed along side 14 of a chamber 15.
  • Tube 16 connects chamber to a source of suction air 17.
  • Arrows 24 indicate the flow of air from nozzles 4a to source 17.
  • the flow of air through nozzles 4a passes via chamber 5 and tube 11 into chamber 12, from chamber 12 via cooperative nozzles 13a and 3,279,786 Patented Oct. 18, 1966 nozzles 14a to chamber 15, and thence via tube 16 back to the source of suction air 17.
  • Rollers 18 and 19, around which belt 10 is disposed, are pivotally mounted via brackets 20 and 21, respectively, for movement towards and away from the conveying channel. Brackets 20 and 21 are spring urged (not shown) so that belt 10 is urged against belt 6. It is important to note that the distance between suction nozzles 4a and suction nozzles 14a is less than the length of the shortest article 22 to be handled by the system.
  • suction is applied to nozzles 4a via path 5, 11, 12, 13, 14, 15 and 16 from suction source 17 as can be seen by arrows 24.
  • Article 2 is drawn to belt 6 and conveyed therealong in the direction of arrow 23 to conveying channel 7.
  • the flow of suction air is effectively cut off as the article interrupts the flow of air between nozzles 13a and 14a.
  • suction air is once again supplied to nozzles 4a, and the next leading article 2 is drawn to the belt for conveyance to channel 7.
  • conveying path 7 need not include the pull-off belt 6 but could employ a second endless belt disposed around a pulley so that it is positioned opposite to roller 19.
  • Apparatus for individually pulling flat articles away from a stack of such articles comprising: an article con veying system, means for applying suction to one of the articles in the stack to draw it into the conveying system including a source of suction and means forming a suction path between said source and said article, said suction path crossing said conveying path and being so located at said crossing point that an article along said conveying path at said crossing point cuts off the suction to the articles in the stack.
  • Apparatus for pulling flat articles away from a stack of such articles and feeding them to the conveying path of a conveying system comprising:
  • pneumatic connecting means connecting said source of suction air to said first article comprising means forming a pneumatic path across said conveying path of a selected position therealong so that articles passing said selected position will interrupt the connection of said source of suction air to said first article.
  • Apparatus for individually pulling flat articles away from a stack of such articles and feeding them to a conveying system comprising:
  • said second suction nozzles being disposed on a first side of the path of said conveying system and said third suction nozzles being disposed opposite to said second suction nozzles on the opposite side of said conveying path whereby conveyed articles are disposed between said second and third suction nozzles when they are at said selected position with respect to said conveying system.
  • said connecting means comprises first, and second, and third chambers containing said first, second, and third suction nozzles, respectively; first tube means pneumatically connecting said first chamber to said second chamber; and second tube means connecting said third chamber to said source of suction air.
  • Apparatus for individually pulling flat articles away from a stack of such articles comprising:
  • pneumatic connecting means connecting said source of suction air to said first set of suction nozzles via a pneumatic path which crosses said conveying path at a second position, said pneumatic path being so dimensioned and positioned that conveyed articles interrupt the flow of suction air to said first set of suction nozzles when they are disposed at said second position.
  • said connecting means comprises a second set of suction nozzles disposed adjacent said conveying path, a third set of suction nozzles disposed opposite said second set of suction nozzles on the other side of said conveying path so that the portion of said pneumatic path which crosses said conveying path is from said second set of suction nozzles through said perforated belts to said third set of suction nozzles.
  • said pneumatic connecting means comprises first, second, and third chambers containing said first, second, and third sets of suction nozzles, respectively; first tube means pneumatically connecting said first chamber to said second chamber; and second tube means connecting said third chamber to said source of suction air.
US375556A 1963-06-24 1964-07-16 Pneumatic apparatus for individually separating flat items Expired - Lifetime US3279786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST20767A DE1177174B (de) 1963-06-24 1963-06-24 Anordnung zum Vereinzeln und Abfoerdern einzelner flacher Schriftstuecke eines Schriftstueckstapels

Publications (1)

Publication Number Publication Date
US3279786A true US3279786A (en) 1966-10-18

Family

ID=7458700

Family Applications (1)

Application Number Title Priority Date Filing Date
US375556A Expired - Lifetime US3279786A (en) 1963-06-24 1964-07-16 Pneumatic apparatus for individually separating flat items

Country Status (5)

Country Link
US (1) US3279786A (de)
BE (1) BE649648A (de)
CH (1) CH431571A (de)
DE (1) DE1177174B (de)
NL (1) NL6406997A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406963A (en) * 1965-12-03 1968-10-22 Int Paper Box Machine Co Timed bottom feed magazine
US3583341A (en) * 1969-11-05 1971-06-08 Blue Bell Inc Cloth-sorting and garment-forming apparatus
US3649002A (en) * 1969-01-31 1972-03-14 Licentia Gmbh Suction belt separator for flat items
US4775139A (en) * 1982-10-25 1988-10-04 Canon Kabushiki Kaisha Sheet handling device
US5074539A (en) * 1990-09-11 1991-12-24 Ward Holding Company, Inc. Feeding sheets of corrugated paperboard
US6494446B1 (en) * 1999-03-24 2002-12-17 Nec Corporation Paper feeder
US6575450B2 (en) * 2001-01-30 2003-06-10 Lockheed Martin Corporation Singulation mechanism
US6644659B2 (en) * 1999-01-25 2003-11-11 Bell & Howell Mail And Messaging Technologies Company Sheet feeder apparatus and method with throughput control

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166312A (en) * 1962-04-28 1965-01-19 Telefunken Patent Conveying device
US3212772A (en) * 1962-07-16 1965-10-19 William F Ward Feed for rotary box making machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1810171A (en) * 1924-05-14 1931-06-16 Cross Paper Feeder Co Paper feeding machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166312A (en) * 1962-04-28 1965-01-19 Telefunken Patent Conveying device
US3212772A (en) * 1962-07-16 1965-10-19 William F Ward Feed for rotary box making machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406963A (en) * 1965-12-03 1968-10-22 Int Paper Box Machine Co Timed bottom feed magazine
US3649002A (en) * 1969-01-31 1972-03-14 Licentia Gmbh Suction belt separator for flat items
US3583341A (en) * 1969-11-05 1971-06-08 Blue Bell Inc Cloth-sorting and garment-forming apparatus
US4775139A (en) * 1982-10-25 1988-10-04 Canon Kabushiki Kaisha Sheet handling device
US5074539A (en) * 1990-09-11 1991-12-24 Ward Holding Company, Inc. Feeding sheets of corrugated paperboard
US6644659B2 (en) * 1999-01-25 2003-11-11 Bell & Howell Mail And Messaging Technologies Company Sheet feeder apparatus and method with throughput control
US6494446B1 (en) * 1999-03-24 2002-12-17 Nec Corporation Paper feeder
US6575450B2 (en) * 2001-01-30 2003-06-10 Lockheed Martin Corporation Singulation mechanism

Also Published As

Publication number Publication date
DE1177174B (de) 1964-09-03
BE649648A (de) 1964-12-24
CH431571A (de) 1967-03-15
NL6406997A (de) 1964-12-28

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