EP0452708B1 - Dispositif pour séparer des feuilles - Google Patents

Dispositif pour séparer des feuilles Download PDF

Info

Publication number
EP0452708B1
EP0452708B1 EP91104688A EP91104688A EP0452708B1 EP 0452708 B1 EP0452708 B1 EP 0452708B1 EP 91104688 A EP91104688 A EP 91104688A EP 91104688 A EP91104688 A EP 91104688A EP 0452708 B1 EP0452708 B1 EP 0452708B1
Authority
EP
European Patent Office
Prior art keywords
sheet
deflector
roller
transport
slit
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
EP91104688A
Other languages
German (de)
English (en)
Other versions
EP0452708A1 (fr
Inventor
Jörg Rohrbach
Werner Reim
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.)
MBO Postpress Solutions GmbH
Original Assignee
Maschinenbau Oppenweiler Binder GmbH and Co KG
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 Maschinenbau Oppenweiler Binder GmbH and Co KG filed Critical Maschinenbau Oppenweiler Binder GmbH and Co KG
Publication of EP0452708A1 publication Critical patent/EP0452708A1/fr
Application granted granted Critical
Publication of EP0452708B1 publication Critical patent/EP0452708B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/12—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/14—Buckling folders
    • B65H45/142—Pocket-type folders
    • 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
    • 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
    • B65H2511/50—Occurence
    • B65H2511/52—Defective operating conditions
    • B65H2511/524—Multiple articles, e.g. double feed

Definitions

  • the invention relates to a sheet separating device, in particular for separating double or mold sheets between a sheet feeder with an alignment table and a folding machine according to the preamble of claim 1.
  • Sheet separation devices are known in folding machines, in which the sensor detects when two or more sheets lying one above the other or sheets carried along by a sheet get from the sheet feeder onto the transport surface of the alignment table. In order to prevent several sheets from being simultaneously fed onto the transfer area of the folder before the parallel break, the sensor then emits a signal, on the basis of which sheet transport is stopped and the undesired sheets are manually removed by an operator. Reduced by these downtimes however, the performance of the folding machine significantly. This applies in particular if the sheets are glued to one another or clipped to the cut edges or if the sheet feeder does not adequately separate the sheets.
  • the double sheet determined by a sensor is removed by pressing a sheet switch controlled by the sensor into the path of the lower sheet for deflecting it and then pulling it back out of the sheet conveying plane by a return spring .
  • the known arrangement requires a relatively large amount of space in the direction of sheet travel.
  • the invention is therefore based on the object of using structurally simple means to create a reliably working sheet separation device with which sheets lying one above the other or dragged along can be automatically eliminated without stopping the sheet transport.
  • a discharge roller is expediently arranged below the gap coaxially to the lower transport roller and in the opposite direction to this in order to cooperatively remove sheets that have been discharged through the gap with the lower transport roller.
  • the upper transport roller advantageously consists of a plurality of roller elements arranged axially at a distance from one another, and guide elements for guiding the sheets are arranged between adjacent roller elements of the upper transport roller.
  • the separated sheets can be collected in a collection container below the gap. Since they are undamaged and not dirty, they can be reused.
  • the control of the device can be simplified in that the deflector and the transfer elements are kinematically connected to one another.
  • the immersion depth of the lower edge of its concave deflecting surface in the gap in the deflector is dimensioned such that the lower edge presses on the leading sheet without impairing its transport onto the transfer surface and without damaging it, but the leading edge of the underlap following Arc is deflected sufficiently far into the gap that it is guided from the concave face of the transfer table to the discharge roller.
  • the folding machine 1 shown in FIG. 1 has a sheet feeder 6, an alignment table 4 with a transport surface 18, a sheet separation device 10 and a folding unit 2 with a parallel fold 3 from right to left.
  • a transfer table 21 with a transfer surface 20 is arranged between the parallel break 3 and the sheet separation device 10.
  • the transfer surface 20 and the transport surface 18 are arranged horizontally and essentially in the same plane.
  • a multiple sheet sensor 22 is arranged laterally in the vicinity of the sheet feeder 6, which is designed such that it detects when sheets 16 are either lying one above the other or overlapping from the sheet feeder 6 on the transport surface 18 of the alignment table 4, and then a signal passes on.
  • the sheet separating device 10 has two parallel transport rollers 12 and 14 which are arranged vertically at a short distance above one another and rotate in the opposite direction in the direction of the transfer table 21.
  • the space between the two transport rollers 12 and 14 is in the transport plane of the transport surface 18.
  • a gap 24 is provided between the lower transport roller 12 and the transfer table 21, which is delimited on the one hand by an end face 23 of the transfer table 21 concave to the transfer roller 12 and on the other hand by the outer surface of the transfer roller 12.
  • the transport rollers 12 and 14 each consist of axially spaced, disk-shaped roller elements 13 and 15, respectively, which are connected to one another in a rotationally fixed manner.
  • Transfer elements 28 are arranged between the adjacent roller elements 13 of the lower transport roller 12 and can be moved by a drive (not shown) between a transfer position shown in FIG. 2 and a discharge position shown in FIG. 3.
  • the transfer position the end section 29 of the transfer elements 28 facing the transfer surface 20 covers the gap 24 between the lower transport roller 12 and the transfer table 21.
  • the discharge position the transfer elements 28 are retracted so far in the direction of the transport surface 18 that they completely release the gap 24.
  • guide elements 38 are provided with an end section 39 parallel to the transport plane and facing the transfer table 21.
  • the end section 39 is located just above the transport plane and extends beyond the outer surface of the roller elements 15.
  • deflector 30 with a deflection surface 31 concave to the lower transport roller 12.
  • the deflector 30 is kinematically connected to the drive of the transfer elements 28 and between the rest position shown in FIG. 2 and that shown in FIG. 3
  • Elimination position movable.
  • the lower end of its concave deflection surface 31 is somewhat immersed in the gap 24 between the transfer table 21 and the lower transport roller 12.
  • the entire deflector 30 is at a distance from the transfer surface 20.
  • the deflector 30 is kinematically connected to the drive of the transfer elements 28 in such a way that, upon a signal from the multiple sensor 22, it is moved simultaneously with the transfer elements 28 into the withdrawal position and back.
  • a separation roller 32 is mounted parallel and at a short distance from the lower transport roller 12, which rotates in a direction opposite to the direction of rotation of the transport roller 12.
  • the space between the separating roller 32 and the lower transport roller 12 is located on the imaginary extension of the concave end face 23 and is dimensioned such that a through the gap 24 transported sheet gripped by the lower transport roller 12 and the separating roller 32 and can be conveyed down into a collecting container 36.
  • a sheet 16 is normally separated by the sheet feeder 6 and reaches the transport surface 18 of the alignment table 4.
  • the sheet 16 is aligned on the transport surface 18 and conveyed between the transport rollers 12 and 14 of the sheet separating device 10, which is shown in FIG 2 shown sheet transport state, in which the end section 29 of the transfer elements 28 facing the transfer table 21 covers the gap 24 at the top and the deflector 30 is at a distance above the transfer surface 20.
  • the sheet is gripped by the transport rollers 12 and 14 and transported by these over the end section 29 of the transfer elements 28 onto the transfer surface 20 of the transfer table 21. From the transfer table 21, the sheet 16 then reaches the parallel fold 3 of the folding unit 2 in a known manner.
  • the guide elements 38 prevent unstable, rounded or statically charged sheets from sticking to the upper transport roller 14 and being able to get between them and the deflector 30. In the same way, the transfer elements 28 prevent an arc from inadvertently entering the gap 24.
  • the multiple sheet sensor 22 detects this and sends a corresponding signal to the drive of the transfer elements 28 and the deflector 30. Thereupon the deflector 30 and the transfer elements 28 are each moved into their discharge position, which is shown in FIG. 3.
  • the switching time is selected so that the deflector 30 and the transfer elements 28 assume their excretion position precisely when an area with sheet sections arranged one above the other reaches the sheet discharge device 10.
  • the subsequent arc 16b is deflected into the gap 24 by the section of the preceding arc 16a located immediately in front of the deflector 30, since the latter is slightly curved downwards in the direction of the gap by the deflector 30. Then the deflected sheet 16b gripped by the separating roller 32 and the lower transport roller 12 and conveyed further into the collecting container 36.
  • the deflector 30 and the transfer elements 28 are moved back to their rest position or transfer position after a predetermined time by their drive on the basis of a signal from the multiple sensor 22.
  • the predetermined time is selected depending on the transport speed and the length of the sheet such that the deflector 30 and the transfer elements 28 are moved back as soon as the trailing edge of the sheets or the overlapping sheet 16b lying one above the other is in the gap 24.
  • the sheets deposited in the collecting container 36 can be removed by an operator and arranged again on the sheet feeder 6.

Landscapes

  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (6)

  1. Dispositif séparateur de feuilles, notamment pour séparer des feuilles doubles ou des feuilles blanches entre un margeur (6) comportant une table d'alignement (4) et une machine de pliage (2), comprenant deux rouleaux de transport (12, 14) disposés parallèlement, l'un au-dessus de l'autre, et tournant dans des sens opposés pour transporter des feuilles (16) entre une surface de transport (18) disposée en amont des rouleaux de transport (12, 14), dans le sens du transport, et une surface de transfert (20) disposée en aval desdits rouleaux (12, 14), dans le sens du transport, et comprenant un détecteur de feuilles multiples (22) disposé dans la zone de la surface de transport (18), pour contrôler le nombre de feuilles transportées sur la surface de transport (18), étant précisé qu'il est prévu un interstice (24) entre la surface de transfert (20) et le rouleau inférieur (12) de la paire de rouleaux de transport (12, 14), ainsi qu'un élément de déviation (30) qui est mobile entre une position de repos et une position de séparation, et que l'élément de déviation (30) est accouplé au détecteur de feuilles multiples (22) de manière à être mobile, en réponse à des signaux du détecteur (22), entre sa position de repos et sa position de séparation ou inversement, caractérisé
    - en ce qu'au moins le rouleau de transport inférieur (12) se compose de plusieurs éléments de rouleau (13) en forme de disques espacés axialement les uns des autres,
    - en ce qu'il est prévu, entre des éléments voisins (13) du rouleau de transport (12), des éléments de transition (28) qui sont mobiles entre une position de transition dans laquelle ils couvrent l'interstice (24), et une position de séparation dans laquelle ils dégagent l'interstice (24),
    - en ce que la position de repos de l'élément de déviation se trouve au-dessus de la surface de transfert, et dans la position de séparation, l'élément de déviation s'engage partiellement dans l'interstice, et
    - en ce que les éléments de transition (28) sont accouplés au détecteur de feuilles multiples (22) de telle sorte qu'en réponse à des signaux du détecteur (22), ils soient mobiles, en même temps que l'élément de déviation, de leur position de transition vers leur position de séparation ou inversement.
  2. Dispositif selon la revendication 1, caractérisé en ce qu'il est prévu, au-dessous de l'interstice (24), un rouleau de séparation (32) qui est disposé coaxialement et tourne en sens inverse par rapport au rouleau de transport inférieur (12) afin d'évacuer, en coopération avec le rouleau de transport inférieur (12), les feuilles séparées (16) par la fente (24) .
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le rouleau de transport supérieur (14) se compose de plusieurs éléments de rouleau (15) espacés axialement les uns des autres, et en ce qu'il est prévu, entre des éléments voisins (15) du rouleau de transport supérieur (14), des éléments de guidage (38) pour guider les feuilles (16).
  4. Dispositif selon l'une des revendications précédentes, caractérisé par un récipient collecteur (36) disposé au-dessous de l'interstice (24).
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'élément de déviation (30) et les éléments de transition (28) sont reliés de façon cinématique.
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que, pour la séparation d'une première feuille (16a) et d'une feuille suivante (16b) collée sous celle-ci, dans la position de séparation de l'élément de déviation (30), la profondeur de pénétration du bord inférieur de sa surface de déviation concave (31) dans l'interstice (24) est juste calculée pour que ledit bord inférieur appuie sur la première feuille (16a) sans affecter le passage de celle-ci sur la surface de transfert (20) et sans l'abîmer, mais pour que le bord avant de la feuille suivante (16b) collée sous la première soit dévié suffisamment loin dans l'interstice (24) pour être guidé par la surface frontale concave (23) de la table de transfert (20) vers le rouleau de séparation (32).
EP91104688A 1990-04-19 1991-03-25 Dispositif pour séparer des feuilles Expired - Lifetime EP0452708B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9004480U DE9004480U1 (de) 1990-04-19 1990-04-19 Bogenausscheidevorrichtung
DE9004480U 1990-04-19

Publications (2)

Publication Number Publication Date
EP0452708A1 EP0452708A1 (fr) 1991-10-23
EP0452708B1 true EP0452708B1 (fr) 1994-07-06

Family

ID=6853047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91104688A Expired - Lifetime EP0452708B1 (fr) 1990-04-19 1991-03-25 Dispositif pour séparer des feuilles

Country Status (2)

Country Link
EP (1) EP0452708B1 (fr)
DE (2) DE9004480U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757163A1 (de) * 1997-12-20 1999-06-24 Heidelberger Druckmasch Ag Bogendruckmaschine mit Nachverarbeitungseinheit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088070B (de) * 1959-01-16 1960-09-01 Mabeg Maschb G M B H Vorrichtung zum Aussondern von Doppel-Bogen beim Zufuehren von Bogen zu bogenverarbeitenden Maschinen
DE1223682B (de) * 1962-03-01 1966-08-25 Masson Scott & Co Ltd Vorrichtung zum Aussortieren von Bogen aus Papier, Pappe od. dgl.
FR2288048A1 (fr) * 1974-10-18 1976-05-14 Cit Alcatel Distributeur de feuilles en liasses
DE2724387A1 (de) * 1977-05-28 1978-12-07 Oppenweiler Gmbh Maschinenbau Bogenanleger fuer falzmaschinen
US4154437A (en) * 1977-07-15 1979-05-15 Diebold, Incorporated Multiple bill detector for currency dispensers
JPS6117966Y2 (fr) * 1980-12-05 1986-05-31

Also Published As

Publication number Publication date
DE59102093D1 (de) 1994-08-11
DE9004480U1 (de) 1990-07-05
EP0452708A1 (fr) 1991-10-23

Similar Documents

Publication Publication Date Title
DE2426217C3 (de) Vorrichtung zum Transport von einen Querschneider verlassenden einzelnen Bogen
DE69221159T2 (de) Vorrichtung und verfahren zum herausnehmen eines blattes aus einer regelmässigen anordnung von blättern
DE2657132C2 (de) Fördervorrichtung zum Zuführen und Abfördern einer Wellpappebahn zu bzw. von einer Schneidvorrichtung
DE3634400A1 (de) Bogenausleger an rotationsdruckmaschinen
DE2631461A1 (de) Vorrichtung zum automatischen sortieren durcheinandergemischter waescheartikel
DE19905263C1 (de) Vorrichtung und Verfahren zur Probebogenentnahme
CH617636A5 (en) Delivery device
DE1431035A1 (de) Verfahren und Vorrichtung zum Sortieren von Stapeln von Furnierblaettern
DE69902970T2 (de) Vorrichtung zum Sammeln von Bögen
EP0870582B1 (fr) Méthode et dispositif pour se débarasser de produits mauvais dans une machine à couper des tôles
DE19527266C2 (de) Bogendruckmaschine
DE19842344C2 (de) Verfahren zum Transport von Bogen und nach dem Verfahren arbeitende Bogenbearbeitungsmaschine
EP0452708B1 (fr) Dispositif pour séparer des feuilles
DE2939941C2 (de) Blattsortier- und -stapeleinrichtung
DE2832660B2 (de) Vorrichtung zum gruppenweisen Abteilen von geschuppt übereinanderliegend geförderten Werkstücken
EP1149791B1 (fr) Dispositif pour prélever une feuille d'essai dans un appareil de sortie d'une machine à imprimer des feuilles
DE10139218C1 (de) Vorrichtung und ein Verfahren zur Ausrichtung von in einer Lage übereinander angeordneten Bogen
DE3512277A1 (de) Vorrichtung zum herstellen von batterieplatten
DE2535889C2 (de) Maschine zum Entleeren eines insgesamt rechteckigen Briefumschlags
EP1710186B1 (fr) Butée avant pour une plieuse à lame
DE3320381C2 (fr)
DE3321318C2 (de) Vorrichtung zum seitlichen Ausrichten von Bogen
DE9104810U1 (de) Bogenausscheidevorrichtung
EP0939050B1 (fr) Dispositif de prélèvement d'échantillon dans un dispositif de sortie d'une machine à imprimer des feuilles
EP1341714A1 (fr) Dispositif et procede permettant la separation individuelle de flans d'une feuille imprimee

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19920415

17Q First examination report despatched

Effective date: 19931119

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 59102093

Country of ref document: DE

Date of ref document: 19940811

ITF It: translation for a ep patent filed
ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940906

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010227

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010328

Year of fee payment: 11

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020325

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020529

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020325

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021129

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050325