EP0890536A1 - Dispositif pour empêcher les doublées alimentations - Google Patents

Dispositif pour empêcher les doublées alimentations Download PDF

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Publication number
EP0890536A1
EP0890536A1 EP98112798A EP98112798A EP0890536A1 EP 0890536 A1 EP0890536 A1 EP 0890536A1 EP 98112798 A EP98112798 A EP 98112798A EP 98112798 A EP98112798 A EP 98112798A EP 0890536 A1 EP0890536 A1 EP 0890536A1
Authority
EP
European Patent Office
Prior art keywords
scraper
friction
take
belt
coefficient
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.)
Granted
Application number
EP98112798A
Other languages
German (de)
English (en)
Other versions
EP0890536B1 (fr
Inventor
Stefan-Werner Neumann
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.)
Siemens AG
Original Assignee
Siemens 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 AG filed Critical Siemens AG
Publication of EP0890536A1 publication Critical patent/EP0890536A1/fr
Application granted granted Critical
Publication of EP0890536B1 publication Critical patent/EP0890536B1/fr
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
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated

Definitions

  • the present invention relates to a device according to the Preamble of claim 1.
  • skid-shaped wipers used which are movably mounted and by spring force against the shipments.
  • the surface of the wipers, that touches the shipments consists of a friction lining.
  • the Actuating force generated via the friction coefficient of the friction lining a retention force on the double-deducted items that is greater than the force between the consignments, so that only the Shipments are deducted on the moving conveyor belt with the greatest coefficient of friction.
  • the executed Movable storage of the scraper only allows pulling of shipments in a restricted range different Consignment thicknesses.
  • Another disadvantage is that thin shipments and low deflection of the scraper Retention force is smaller than with thicker mail items with larger ones Deflection of the scraper, causing the thicker shipments be stressed more.
  • the invention specified in claim 1 is therefore the problem based on creating a scraper device with the double deductions of consignments with a larger thickness range than can be prevented according to the prior art, and in the the stress on the consignments regardless of the consignment thickness is.
  • the curved stiffener contour designed as an involute to the axis of rotation, so that the effective lever arm is always the same at the point of contact.
  • the consignment stack lying against a boundary 1, consisting of Consignments of different thicknesses become separating devices from the right pushed with a trigger tape 2. Touched the frontmost consignment 3 the withdrawal tape 2, so the consignment 3 because of the high coefficient of friction of the trigger belt 2 by the Gap between trigger belt and limit 1 is deducted.
  • Behind the There is a wiper 4 in the gap in the pull-off direction is rotatably mounted in a locally fixed axis of rotation 5.
  • the one in the deflection area part 9 of the contour facing the trigger belt 2 is as Involute trained to the axis of rotation.
  • the scraper 4 is according to the thickness of the to be pulled Shipments 3 deflected and slides across the surface of the foremost mail item 3 to be deducted from the stack.
  • the stops Scraper 4 the following shipments 3 back because of the frictional force between the stripper 4 and the consignment to be retained larger than between the shipments, but smaller than the friction force between deduction band 2 and shipment.
  • the scraper contour acts Scraper 4 deflecting force regardless of the thickness of the Consignment and thus from the point of application of force to the contour always with the same effective lever arm on the axis of rotation 5 of the wiper 4.
  • the main tension spring 6 and the compensation tension spring 7 are dimensioned and attached so that the resetting Force independent of the deflection of the scraper 4 remains constant. This is also the resetting torque constant. So there is a horizontal characteristic of the Scraper 4 when deflecting in the work area.
  • a horizontal characteristic of the scraper 4 can also be achieved if the effective effective lever arm depends on Is the deflection angle, and this dependence when dimensioning and attachment of the spring elements for the resetting Force is taken into account so that at the point of contact acting torque approximately regardless of the deflection is constant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP98112798A 1997-07-09 1998-07-09 Dispositif pour empêcher les doublées alimentations Expired - Lifetime EP0890536B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19729430A DE19729430A1 (de) 1997-07-09 1997-07-09 Vorrichtung zum Verhindern von Doppelabzügen
DE19729430 1997-07-09

Publications (2)

Publication Number Publication Date
EP0890536A1 true EP0890536A1 (fr) 1999-01-13
EP0890536B1 EP0890536B1 (fr) 2002-05-08

Family

ID=7835189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98112798A Expired - Lifetime EP0890536B1 (fr) 1997-07-09 1998-07-09 Dispositif pour empêcher les doublées alimentations

Country Status (2)

Country Link
EP (1) EP0890536B1 (fr)
DE (2) DE19729430A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19908421C1 (de) * 1999-02-26 2000-05-25 Siemens Ag Verfahren und Vorrichtung zum Vereinzeln von flachen Sendungen
DE10131749B4 (de) * 2001-07-03 2013-04-18 Deutsche Post Ag Vorrichtung zum Vereinzeln von flachen Poststücken
DE10342568A1 (de) 2003-09-15 2005-04-14 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zum Vereinzeln von Blattgut

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2704045A1 (de) * 1977-02-01 1978-08-03 Licentia Gmbh Foerdereinrichtung mit einem abstreifer zum zurueckhalten von mehrfachsendungen
DE3444335A1 (de) * 1984-12-05 1986-06-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vereinzelungseinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2704045A1 (de) * 1977-02-01 1978-08-03 Licentia Gmbh Foerdereinrichtung mit einem abstreifer zum zurueckhalten von mehrfachsendungen
DE3444335A1 (de) * 1984-12-05 1986-06-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vereinzelungseinrichtung

Also Published As

Publication number Publication date
DE59804025D1 (de) 2002-06-13
DE19729430A1 (de) 1999-01-14
EP0890536B1 (fr) 2002-05-08

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