EP0810970A1 - Dispositif de controle du deplacement de deux bandes de papier superposees dans une machine de traitement du papier - Google Patents

Dispositif de controle du deplacement de deux bandes de papier superposees dans une machine de traitement du papier

Info

Publication number
EP0810970A1
EP0810970A1 EP95942045A EP95942045A EP0810970A1 EP 0810970 A1 EP0810970 A1 EP 0810970A1 EP 95942045 A EP95942045 A EP 95942045A EP 95942045 A EP95942045 A EP 95942045A EP 0810970 A1 EP0810970 A1 EP 0810970A1
Authority
EP
European Patent Office
Prior art keywords
paper
plate
webs
control device
sensors
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
EP95942045A
Other languages
German (de)
English (en)
Other versions
EP0810970B1 (fr
Inventor
Max Prassler
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.)
Boewe Systec AG
Original Assignee
Boewe Systec 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 Boewe Systec AG filed Critical Boewe Systec AG
Publication of EP0810970A1 publication Critical patent/EP0810970A1/fr
Application granted granted Critical
Publication of EP0810970B1 publication Critical patent/EP0810970B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/46—Applications of alarms, e.g. responsive to approach of end of line
    • B41J29/48—Applications of alarms, e.g. responsive to approach of end of line responsive to breakage or exhaustion of paper or approach of bottom of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors

Definitions

  • Control device for monitoring the running of two superimposed paper webs in a paper processing machine.
  • the invention relates to a control device for monitoring the running of two superimposed paper webs in a paper processing machine, with photoelectric sensors, the light rays of which are directed onto the surface of the paper webs.
  • the honing post-processing system has a so-called slitter / merger unit.
  • a wide paper web is first divided in the middle by slitting knives in the longitudinal direction, so that two half-wide paper webs are formed. These two paper webs are then placed one on top of the other and transported on top of one another with the exact edge. Since the wide paper web is already provided with transverse perforations which are arranged at a distance from the format height, it can happen that one of the paper webs tears and is not transported on together with the second paper web.
  • a control device is therefore required to monitor the presence of two paper webs lying one above the other.
  • a known control device works with a light barrier that shines through both paper webs simultaneously. The light barrier must be set so that when two paper webs are present, no light hits the receiver photocell, while in the absence of a paper web the light beam penetrates the remaining paper web and hits the receiver photocell. In order for this system to work, the operator of the machine must adjust the light barrier to the respective transparency of the paper webs. If this is forgotten, the control device no longer responds at all or no longer reliably when processing a paper quality with less transparency.
  • the known control device is not suitable at all for thicker papers or those with low transparency. The invention is therefore based on the object
  • Honing roller device for monitoring the course of two superimposed paper webs in a paper processing machine of the type mentioned to create, which allows reliable monitoring of paper webs of any transparency with a simple structure, without adjustment work being required when changing the paper quality.
  • a stationary, thin plate engaging at the edge of the paper webs between the two paper webs is provided, which extends in the direction of paper travel, and in that on the two opposite sides of the plate each have a photoelectric sensor that responds to reflection is arranged that the light beams of both sensors are directed from opposite sides to the associated paper web and the plate located behind it.
  • the invention is therefore based on the idea of running each individual paper web through its own
  • Monitor reflection responsive, photoelectric sensor With trouble-free running, the light beam emitted by the respective sensor is reflected by the associated paper web and by the receiver received part of it. However, if the associated paper web tears in an area in front of the plate, then the surface of the plate facing the torn paper web is no longer covered by the paper web as soon as the end of the torn paper web adjacent to the tear point has passed the plate. Since the surface of the plate has a different reflection behavior than the paper web, the sensor assigned to the torn paper web reacts and emits a corresponding signal. The surface of the plate can be selected so that it is guaranteed to have a different reflection behavior than all types of paper that are to pass through the paper processing machine.
  • the photoelectric sensors only react when no or too little light is reflected from the plate surface due to the lack of a paper web.
  • the control device according to the invention therefore no longer has to be adjusted to the respective paper transparency, as a result of which errors are avoided.
  • the paper path is not affected by the thin plate.
  • FIG. 2 shows a longitudinal section of the control device along the line II-II of Figure 1.
  • 1 and 2 denote two superimposed paper webs which are moved in a paper processing machine one on top of the other in the paper direction A.
  • the control device 3 has a thin plate 4 which extends in the paper running direction A and which engages at the edge of the paper webs 1, 2 between them.
  • a photoelectric sensor or 6 which responds to reflection, is arranged on the two opposite sides of the plate 4.
  • the light beams 5a and 6a of these two sensors 5, S are directed perpendicularly from opposite sides onto the assigned paper web 1 or 2 and the plate 4 located behind them.
  • the surfaces 4.1 and 4.2 of the plate 4 facing the sensors 5, 6 must have a completely different reflectivity than the paper webs 1 and 2.
  • the two surfaces 4.1 and 4.2 are designed to be light-absorbing.
  • the surfaces 4.1 and 4.2 can be blackened.
  • the entire plate 4 can also consist of black plastic.
  • the light beam 5a or 6a emanating from the associated photoelectric sensor 5 or 6 is reflected by the paper web 1 or 2 and the receiver part of each sensor 5, 6 receives this reflected light.
  • the sensors 5, 6 are set or designed such that they do not react when reflected light strikes them.
  • the surface 4.1 will not more covered by paper web 1 as soon as the end adjacent to the tear point has passed the plate.
  • the light beam 5a is then no longer reflected by the black surface 4.1. This is recognized by the receiver part of the sensor 5 and the machine is stopped by a corresponding signal.
  • the plate can also have light-reflecting surfaces on its sides facing the two sensors. In this case, however, it is expedient that these surfaces are inclined to the paper running direction or

Landscapes

  • Controlling Sheets Or Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

Ce dispositif de contrôle (3) du déplacement de deux bandes de papier superposées (1, 2) dans une machine de traitement du papier comprend une mince plaque stationnaire (4) située au bord des bandes de papier (1, 2) qui s'introduit entre les deux bandes de papier et qui s'étend dans la direction de déplacement du papier. Des capteurs photoélectriques (5, 6) sensibles aux reflets sont montés sur des côtés opposés de la plaque (4) de sorte que les rayons de lumière (5a, 6a) émis par les deux capteurs soient projetés en sens opposés sur la bande correspondante de papier (1, 2) et sur la plaque (4) située derrière la bande de papier.
EP95942045A 1995-02-24 1995-12-21 Dispositif de controle du deplacement de deux bandes de papier superposees dans une machine de traitement du papier Expired - Lifetime EP0810970B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19506456A DE19506456C2 (de) 1995-02-24 1995-02-24 Kontrolleinrichtung zur Überwachung des Laufes zweier übereinanderliegender Papierbahnen in einer Papierverarbeitungsmaschine
DE19506456 1995-02-24
PCT/DE1995/001858 WO1996026146A1 (fr) 1995-02-24 1995-12-21 Dispositif de controle du deplacement de deux bandes de papier superposees dans une machine de traitement du papier

Publications (2)

Publication Number Publication Date
EP0810970A1 true EP0810970A1 (fr) 1997-12-10
EP0810970B1 EP0810970B1 (fr) 1999-03-17

Family

ID=7754926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95942045A Expired - Lifetime EP0810970B1 (fr) 1995-02-24 1995-12-21 Dispositif de controle du deplacement de deux bandes de papier superposees dans une machine de traitement du papier

Country Status (7)

Country Link
US (1) US5838017A (fr)
EP (1) EP0810970B1 (fr)
JP (1) JPH11500396A (fr)
CA (1) CA2212056A1 (fr)
DE (1) DE19506456C2 (fr)
ES (1) ES2130691T3 (fr)
WO (1) WO1996026146A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136871A1 (de) * 2001-07-28 2003-02-06 Koenig & Bauer Ag Einrichtung zum Erfassen der Lage einer Kante eines Verarbeitungsgutes
DE10136870A1 (de) * 2001-07-28 2003-02-06 Koenig & Bauer Ag Einrichtung zum Erfassen der Lage einer Kante eines Verarbeitungsgutes
DE10227694A1 (de) * 2002-06-19 2004-01-29 Koenig & Bauer Ag Vorrichtung und Verfahren zur Erkennung einer Laufstörung bei einer laufenden Materialbahn
JP2012201491A (ja) * 2011-03-28 2012-10-22 Sato Knowledge & Intellectual Property Institute 巻取り装置及びそれを用いた検査装置
CN109516255A (zh) * 2018-09-25 2019-03-26 江苏臻中滤料科技有限公司 一种滤袋加工用绕卷装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5116319Y1 (fr) * 1970-11-11 1976-04-28
DE2439318A1 (de) * 1974-08-16 1976-02-26 Phoenix Gummiwerke Ag Vorrichtung zum staendigen ueberwachen von laufenden gewebebahnen
JPS5862080A (ja) * 1981-10-09 1983-04-13 Canon Inc プリンタ−の紙送り装置
JPS622103A (ja) * 1985-06-28 1987-01-08 Toshiba Corp 紙葉類の変位検出装置
DE3739436C1 (de) * 1987-11-20 1989-03-30 Sick Optik Elektronik Erwin Optisches Lochsuchgeraet
DE4216653C2 (de) * 1992-05-20 1995-12-21 Voith Gmbh J M Abrißüberwachungseinrichtung für Papierbahnen
SE505355C2 (sv) * 1992-12-22 1997-08-11 Rue Cash Handling Ab De Anordning för kontrollerad transport av bladformigt material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9626146A1 *

Also Published As

Publication number Publication date
DE19506456C2 (de) 1999-07-01
ES2130691T3 (es) 1999-07-01
JPH11500396A (ja) 1999-01-12
CA2212056A1 (fr) 1996-08-29
DE19506456A1 (de) 1996-08-29
US5838017A (en) 1998-11-17
WO1996026146A1 (fr) 1996-08-29
EP0810970B1 (fr) 1999-03-17

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