DE19937450A1 - Sheet separating method for offset printing machine, lifting upper most sheet in rear area of sheet stack by suction separator simultaneously or with delay with respect to movement of suction lifter - Google Patents

Sheet separating method for offset printing machine, lifting upper most sheet in rear area of sheet stack by suction separator simultaneously or with delay with respect to movement of suction lifter

Info

Publication number
DE19937450A1
DE19937450A1 DE1999137450 DE19937450A DE19937450A1 DE 19937450 A1 DE19937450 A1 DE 19937450A1 DE 1999137450 DE1999137450 DE 1999137450 DE 19937450 A DE19937450 A DE 19937450A DE 19937450 A1 DE19937450 A1 DE 19937450A1
Authority
DE
Germany
Prior art keywords
sheet
suction
movement
delay
respect
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.)
Withdrawn
Application number
DE1999137450
Other languages
German (de)
Inventor
Ingolf Fuchs
Lutz Halbach
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Priority to DE1999137450 priority Critical patent/DE19937450A1/en
Publication of DE19937450A1 publication Critical patent/DE19937450A1/en
Withdrawn legal-status Critical Current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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0825—Suction grippers separating from the top of pile and acting on the rear part of the articles relatively to the final separating direction
    • 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
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0833—Suction grippers separating from the top of pile and acting on the front part of the articles relatively to the final separating direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

The method involves using a suction lifter (2) which holds the sheets in a front area. The uppermost sheet (7) is lifted in a rear area of the sheet stack by a suction separator (3) simultaneously or with a delay with respect to a movement of the suction lifter.

Description

Die Erfindung betrifft ein Verfahren zur Vereinzelung von Bogen von einem Bogenstapel.The invention relates to a method for separating sheets from a sheet stack.

Es ist eine Bogenführung im Anleger einer Bogendruckmaschine bekannt (DE 44 31 488 A1), bei der ein einzelner auf einer sich horizontal und vertikal ausdehnenden Schleife be­ wegter Hubsauger den jeweils obersten Bogen im vorderen Bereich erfaßt, vom Bogenstapel abhebt und ihn mit seiner Vorderkante in den Spalt zwischen Transportwalzen einführt, die den Bogentransport zum Druckwerk der Druckmaschine übernehmen. Die jeweils oberen Bogen des Bogenstapels werden zum Zwecke der Vereinzelung durch Unterblasen mit Blasluft vertikal aufgelockert.A sheet guide in the feeder of a sheet printing machine is known (DE 44 31 488 A1), in which a single be on a horizontally and vertically expanding loop lifted suction device detects the top sheet in the front area, from the sheet stack lifts off and introduces it with its leading edge into the nip between transport rollers, the take over the sheet transport to the printing unit of the printing press. The top one Sheets of the sheet stack are used for the purpose of separation by underblowing Blown air loosened vertically.

Nachteilig ist dabei, dass eine exakte Bogenvereinzelung mit den beschriebenen Mitteln, insbesondere bei Bedruckstoffen mit hoher Grammatur, nicht möglich ist.The disadvantage here is that exact sheet separation using the means described, especially with high grammage substrates.

Aufgabe der Erfindung ist die Schaffung einer Einrichtung zur exakten Vereinzelung von Bo­ gen unterschiedlicher Grammaturen.The object of the invention is to create a device for the exact separation of Bo different grammages.

Erfindungsgemäß wird die Aufgabe durch den Patentanspruch gelöst.According to the invention the object is achieved by the patent claim.

Nachfolgend wird die erfinderische Lösung an einem Ausführungsbeispiel näher erläutert. Die Zeichnung zeigt eine Einrichtung zur Vereinzelung von Bogen.The inventive solution is explained in more detail using an exemplary embodiment. The drawing shows a device for separating sheets.

Oberhalb eines von einem Bogenanschlag 4 begrenzten Bogenstapels 1 ist im vorderen Be­ reich desselben ein Hubsauger 2 angeordnet, welcher in vertikaler und horizontaler Richtung bewegbar ist. Oberhalb des Bogenstapels 1 ist im hinteren Bereich desselben ein Trennsauger 3 angeord­ net, welcher eine vertikale Bewegung ausführt. Der Bogenstapelhinterkante ist eine Blaseinrichtung 6 zugeordnet.Above a sheet stack 1 delimited by a sheet stop 4 , a lifting suction device 2 is arranged in the front area of the same, which is movable in the vertical and horizontal directions. Above the sheet stack 1 , a separating suction device 3 is arranged in the rear area of the same and carries out a vertical movement. A blower device 6 is assigned to the trailing edge of the sheet stack.

Das erfinderische Verfahren wird nachfolgend beschrieben.The inventive method is described below.

Zeitgleich oder zeitversetzt zum Aufsetzen des Hubsaugers 2 auf den obersten Bogen 7 des Bogenstapels 1 wird der oberste Bogen durch den Trennsauger 3 angehoben. At the same time or at a different time from placing the lifting suction device 2 on the uppermost sheet 7 of the sheet stack 1 , the uppermost sheet is raised by the separating suction device 3 .

Gleichzeitig wird durch die Blaseinrichtung 6 Trennluft unter den obersten Bogen geblasen. Während oder nach diesem Verfahrensschritt wird der oberste Bogen im vorderen Bereich angehoben und in Transportrichtung 5 transportiert.At the same time, 6 blowing air is blown under the uppermost sheet by the blowing device. During or after this process step, the uppermost sheet is raised in the front area and transported in the transport direction 5 .

Mit diesem Verfahren ist eine exakte Trennung des jeweils obersten Bogen eines Bogensta­ pels möglich. With this method an exact separation of the uppermost sheet of a sheet is possible pels possible.  

BezugszeichenaufstellungList of reference symbols

11

Bogenstapel
Sheet stack

22nd

Hubsauger
Suction cups

33rd

Trennsauger
Separating suction

44th

Bogenanschlag
Bow stop

55

Förderrichtung
Direction of conveyance

88th

Blaseinrichtung
Blowing device

77

oberster Bogen
top bow

Claims (1)

Verfahren zur Vereinzelung von Bogen von einem Bogenstapel mit einem den Bogen im vorderen Bereich erfassenden Hubsauger, dadurch gekennzeichnet, dass der oberste Bo­ gen (7) zeitgleich oder zeitversetzt zur Bewegung des Hubsaugers (2) im hinteren Bereich des Bogenstapels mittels eines Trennsaugers (3) angehoben wird.Method for separating sheets from a sheet stack with a lifting suction device which detects the sheet in the front area, characterized in that the uppermost sheet ( 7 ) at the same time or with a time delay for the movement of the lifting suction device ( 2 ) in the rear area of the sheet stack by means of a separating suction device ( 3 ) is raised.
DE1999137450 1999-08-07 1999-08-07 Sheet separating method for offset printing machine, lifting upper most sheet in rear area of sheet stack by suction separator simultaneously or with delay with respect to movement of suction lifter Withdrawn DE19937450A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999137450 DE19937450A1 (en) 1999-08-07 1999-08-07 Sheet separating method for offset printing machine, lifting upper most sheet in rear area of sheet stack by suction separator simultaneously or with delay with respect to movement of suction lifter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999137450 DE19937450A1 (en) 1999-08-07 1999-08-07 Sheet separating method for offset printing machine, lifting upper most sheet in rear area of sheet stack by suction separator simultaneously or with delay with respect to movement of suction lifter

Publications (1)

Publication Number Publication Date
DE19937450A1 true DE19937450A1 (en) 2001-02-08

Family

ID=7917657

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999137450 Withdrawn DE19937450A1 (en) 1999-08-07 1999-08-07 Sheet separating method for offset printing machine, lifting upper most sheet in rear area of sheet stack by suction separator simultaneously or with delay with respect to movement of suction lifter

Country Status (1)

Country Link
DE (1) DE19937450A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109623796A (en) * 2019-02-25 2019-04-16 广东格乐智能设备有限公司 A kind of truss robot
DE102021111315A1 (en) 2021-05-03 2022-11-03 Koenig & Bauer Ag Device and method for separating flat goods and for feeding them to a processing unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109623796A (en) * 2019-02-25 2019-04-16 广东格乐智能设备有限公司 A kind of truss robot
DE102021111315A1 (en) 2021-05-03 2022-11-03 Koenig & Bauer Ag Device and method for separating flat goods and for feeding them to a processing unit
EP4086209A1 (en) 2021-05-03 2022-11-09 Koenig & Bauer AG Device and method for separating flat goods and feeding flat goods to a processing unit

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8130 Withdrawal