WO2006122789A1 - Procede de reparation automatisee d'une bande de papier, dispositif associe et machine de transformation du papier - Google Patents

Procede de reparation automatisee d'une bande de papier, dispositif associe et machine de transformation du papier Download PDF

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Publication number
WO2006122789A1
WO2006122789A1 PCT/EP2006/004681 EP2006004681W WO2006122789A1 WO 2006122789 A1 WO2006122789 A1 WO 2006122789A1 EP 2006004681 W EP2006004681 W EP 2006004681W WO 2006122789 A1 WO2006122789 A1 WO 2006122789A1
Authority
WO
WIPO (PCT)
Prior art keywords
paper
repair
web
paper web
defective
Prior art date
Application number
PCT/EP2006/004681
Other languages
German (de)
English (en)
Inventor
Michael Nebert
Original Assignee
Michael Nebert
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 Michael Nebert filed Critical Michael Nebert
Publication of WO2006122789A1 publication Critical patent/WO2006122789A1/fr

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
    • 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
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/18—Web break detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0013—Article or web delivery apparatus incorporating cutting or line-perforating devices and applying the article or the web by adhesive to a surface
    • 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

Definitions

  • the invention relates to a method for the automated repair of a paper web in a paper processing machine, in particular a paper finishing machine such as a web-fed printing machine.
  • the invention relates to a device for automatically repairing a paper web in a paper processing machine and a paper processing machine itself.
  • Continuous paper processing machines process a high speed web through the machine. This is easiest to explain using a web press such as a web offset press, as they are used for publishing, advertising or newspaper printing. These machines operate efficiently when they run without interruption or standstill. For this purpose, for example, an automatic roll change is provided at the inlet, which ensures a continuous paper feed.
  • a web press such as a web offset press
  • the paper feed is interrupted when a web break has occurred. After a web break the paper web must be re-imported automatically or by hand. In addition, of course, the torn paper end must be removed. Due to the extremely difficult accessibility, this is associated with a lot of time. By so-called paper catcher and stripping is to prevent that it comes to about the paper jam in the printing unit, in the dryer or in the folder.
  • Protocol stations are, which are usually upstream of the first printing unit and detect the errors in the paper web and store electronically. It can then be determined via the protocol device whether defective paper led to the web break.
  • a so-called emergency device is known, which adheres to the paper web end a reserve paper web in the crack of a paper web, so that the torn paper web end can not run freely in the printing press.
  • the printing press is stopped after the web has cracked and the reserve paper web is adhered.
  • a new paper roll is glued to the reserve paper web before the machine is started up again. The restart of the machine is thus faster.
  • US 2 957 637 shows an apparatus for repairing a completely cracked paper web.
  • an adhesive strip is applied to the leading end formed by the tear.
  • the press is then stopped.
  • the trailing end is then attached over the tape back to the front end before the press starts again.
  • DE 36 40 101 A1 describes a safety device for controlling a web-fed rotary printing press, in which the web tension is abruptly reduced upon detection of a web break or web damage in order to avoid a web break.
  • the object of the invention is to provide a method for automated repair of a paper web, which further reduces downtime drastically.
  • the invention relates to paper processing machines, including, above all, further processing machines such as web-fed printing presses.
  • a partial tear or a defective paper spot exhibiting defective paper area is automatically detected and located by means of a detector device and
  • a thin repair piece is glued onto the defective paper area fully automatically in the continuous paper web, ie without stopping it, which passes through the paper processing machine on the paper web.
  • the method according to the invention provides that an emergency operation procedure does not start until a paper tear, but that the paper web is already repaired beforehand, ie before a web break, if one must start from an increased risk of a paper tear in the paper processing machine.
  • a higher risk is a partial tear or a defective paper spot (especially holes, edge cracks and thin and thick spots with inclusions).
  • the defective paper area is simply pasted over by means of a thin repair piece, ie the repair piece bridges the partial tear or the defective paper spot.
  • the paper web with the appropriately thin trainees repair piece passes through the processing machine. Only the provided with the repair piece, unusable section must be separated later. However, this committee is absolutely negligible compared to the cost of a web break.
  • the repair takes place with the paper web running, preferably without speed reduction after detecting a defective paper area, ie continuously during operation of the paper processing machine. This also puts less pressure on the paper web itself, because stopping and restarting the machine represent an additional risk of a web break.
  • the inventive method also works in contrast to known methods, preferably without marking the defective paper area.
  • known methods see e.g. after detecting a defective area, mark this area so that, after immediate stop of the machine, this area will be manually marked, i. not automatically to repair or to be able to separate the marked paper area with defect later after passing through the machine.
  • the detector device and the repair station in the preferred embodiment are coupled together so that a controller calculates the time at which the repair piece must be applied to the paper web in the repair station.
  • the repair piece is preferably self-adhesive coated and similar to an oversized label.
  • the invention provides here that the repair piece before applying to the paper web already to the
  • Paper web is delivered. This means that the repair piece will not be in one
  • the repair piece is delivered a first distance to the paper web, so that the second distance is shorter until applied to the paper web.
  • This delivery can, for example, go so far that the repair piece already grinds along the paper web and is only released from the arrival of the defective paper area to be glued to the paper web.
  • the inventive method provides, in particular, that the repair piece to be used next is moved with its at least partially exposed adhesive side in a waiting position.
  • the adhesive side is therefore free, an adhesive does not have to be applied.
  • the invention provides in an improved variant that after a predetermined time interval or a predetermined track length without defective paper area, the repair piece to be used next is discarded and a new repair piece is delivered. Under certain circumstances, this sorting out can also take place in that the repair piece is simply glued to the web. An extra device for separating the repair piece from the repair station can thus be avoided.
  • Another variant provides that the repair piece to be installed is first applied to a feed roller and is pressed by this on the defective paper area. This should ensure a uniform and wrinkle-free sticking of the entire repair piece on the paper web.
  • repair pieces are prefabricated, i. in predetermined
  • the repair pieces are preferably applied in succession on a carrier web or, generally speaking, housed in a memory.
  • the detector device is the
  • Protocol station itself used, or the detector device is integrated at least in the protocol station. In existing machines, therefore, only the repair station must be installed and coupled with the control of the protocol station.
  • the repair station can repair any defective paper area, no matter where the paper web is located. There are now several options for how this is achieved. For example, several adjacent stations could cover a strip of paper web and deliver a repair piece corresponding to the width of the strip assigned to it. However, the preferred embodiment provides a simplified solution by using a repair piece which extends substantially over the entire paper web width, preferably over the entire paper web width.
  • the aforementioned object of the invention is also by a
  • Apparatus for automatically repairing a paper web in a paper processing machine in particular a
  • the device according to the invention has a detector device which scans the paper web during partial operation of the processing machine on partial cracks or defective paper spots.
  • a downstream repair station which is preferably coupled to the detector device, is designed so that it running paper web, ie without stopping, a thin piece of repair on the provided with the partial tear or the defective paper spot defective paper area of the paper web sticks before it comes to a web break.
  • the repair station according to the invention has a memory for one or more repair pieces, wherein in particular a plurality of prefabricated repair pieces are provided.
  • a continuous roll of adhesive film from which then depending on the size of the defective paper area a correspondingly large part is separated and processed.
  • the repair piece should, as also previously explained, have a self-adhesive side, so that no liquid adhesive must be used.
  • the invention finally relates to a paper processing machine, in particular a web-fed printing press, with a device according to the invention.
  • the device for automatic repair is connected upstream of the first printing unit.
  • the already provided protocol station can be used as a detector device to reduce costs.
  • FIG. 1 shows a schematic view of a paper processing machine according to the invention in the form of a web-fed printing press, which has installed the device according to the invention for the automatic repair of the paper web and operates according to the method according to the invention
  • FIG. 2 shows a schematic view of a front part of the paper processing machine shown in FIG. 1 with integrated device according to the invention
  • 3 is a perspective view of the paper web with glued repair piece just before a deflection roller
  • FIG. 5 shows a roll with prefabricated repair pieces.
  • FIG. 1 shows a paper processing machine in the form of a web-fed printing machine, which comprises an area 10 with an inlet, paper feed and automatic roll changer, printing units 12, a dryer 14 and the folding apparatus 16.
  • FIG 2 the area 10 and the first portion of the printing units 12 are shown schematically. From large paper rolls 18, which are stored in a roll changer 20, a paper web 34 passes through the entire paper processing machine. With 22 a so-called rotary frame, or web position controller is called. Prior to the first printing unit 12, a device for automatically repairing a paper web is integrated into the section 10 of the machine. This device essentially comprises two sections, namely a detector device 24 in this case consisting of a light source 26 and a sensor 28, which are arranged in front of the rotary frame 22, and a repair station 30, which is arranged after the rotary frame 22. Detector device 24 and repair station 30 are coupled together via a controller 32, which may be the paper processing machine controller, a detector controller or an independently operating controller.
  • a controller 32 which may be the paper processing machine controller, a detector controller or an independently operating controller.
  • the detector device 24 scans the paper web 34 during on-line printing operation on partial cracks or defective paper spots.
  • a partial tear 36 and an extremely thin and thus defective paper point 38 are shown schematically.
  • the resulting defective paper area 40 ie the area with the partial cracks 36 or the defective paper locations 38, is repaired in the repair station 30 so that the paper web 34 has a higher tensile strength in this area and a web break in the subsequent printing unit 12 can be excluded.
  • a memory (see FIG. 5) with prefabricated and size-predetermined repair pieces 42 is integrated.
  • the memory consists of a driven shaft 44, on which a roller 46 is seated.
  • This roller 46 consists of an adhesive-repellent carrier web 48, on which the self-adhesive repair pieces 42 sit. This is similar to a roll 46 of label stickers.
  • the repair pieces 42 are very thin, but they have a width which corresponds exactly to the width of the paper web 34.
  • the self-adhesive side of each repair piece 42 contacts the carrier web 48.
  • the repair pieces 42 are made of paper, plastic, aluminum or
  • Textile material such as silk and are foil-thin.
  • the shaft 44 is driven to withdraw in the withdrawal direction A trailing repair pieces 42 of the carrier web 48.
  • the top repair piece 42 shown in Figure 5 is the one to be processed next.
  • This repair piece 42 is e.g. applied directly to the paper web 34 or an intermediate carrier such as a kind of clocked sword and / or an infeed or deflection roller 50.
  • the controller 32 receives a corresponding signal. Based on the distance to the repair station 30 and the web speed, which is exactly determined, the time is calculated at which the defective paper area 40 has reached the repair station 30. However, before that, the next repair piece 42 to be installed is already partially or completely removed from the roll 46 to be put in a waiting position. In this waiting position, the repair piece 42 grinds, for example, already on the paper web 34 or on the guide roller 50, depending on whether the repair piece 42 is applied directly to the paper web 34 or first on the guide roller 50th
  • the controller 32 determines the time at which the repair piece 42 is released, e.g. by advancing the shaft 44 a bit further.
  • the repair piece 42 then adheres to the paper web 34 or is pressed over the follower feed or deflection roller 50 on the paper web 34, Of course, the adhesive side of the repair piece rests on the paper web 34.
  • the repair piece 42 is not glued over the guide roller 50, but in front of her on the paper web 34 with its front edge 54, so that the repair piece 42 is not glued over the entire surface.
  • the deflection roller 50 then ensures the necessary full-surface sticking over the defective paper area 40, ie. the repair piece 42 completely bridges the defective paper area 40.
  • This detection and repair process is carried out at full web speed and without the paper web 34 is marked at its defective location.
  • Repair station 30 then only a repair piece 42 delivers when the defective paper area has arrived at her.
  • the detection device 24 does not have to be a separate device, rather it is the already existing protocol station of the printing press.
  • the invention does not necessarily relate only to printing presses, but generally to paper finishing machines which are already finished, i.e., finished. work completely dried paper.
  • the invention can also be used in paper-making machines in the field of papermaking, for example, if the produced paper web and paper web not yet completely dried is further processed in subsequent steps and there is the risk of web breaks.

Landscapes

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

Abstract

L'invention concerne un dispositif pour réparer automatiquement une bande de papier dans une machine de transformation du papier, en particulier une presse rotative, ce dispositif comprenant un système de détection (24) et un poste de réparation (30) monté en aval. Des déchirures partielles ou des défauts dans le papier sont détectés et une pièce de réparation (42) de type étiquette est collée sur la zone endommagée correspondante sur la bande de papier (34). Cette pièce de réparation (42) présente de préférence la même largeur que la bande de papier (34).
PCT/EP2006/004681 2005-05-20 2006-05-17 Procede de reparation automatisee d'une bande de papier, dispositif associe et machine de transformation du papier WO2006122789A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510023396 DE102005023396B3 (de) 2005-05-20 2005-05-20 Verfahren zum automatisierten Reparieren einer Papierbahn, Vorrichtung hierzu sowie Papierverarbeitungsmaschine
DE102005023396.1 2005-05-20

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/094,163 Division US8420669B2 (en) 2005-05-20 2011-04-26 Derivatives of 4-(2-amino-1-hydroxyethyl)phenol as agonists of the BETA2 adrenergic receptor
US13/094,156 Division US8242177B2 (en) 2005-05-20 2011-04-26 Derivatives of 4-(2-amino-1-hydroxyethyl)phenol as agonists of the β2 adrenergic receptor

Publications (1)

Publication Number Publication Date
WO2006122789A1 true WO2006122789A1 (fr) 2006-11-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/004681 WO2006122789A1 (fr) 2005-05-20 2006-05-17 Procede de reparation automatisee d'une bande de papier, dispositif associe et machine de transformation du papier

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DE (1) DE102005023396B3 (fr)
WO (1) WO2006122789A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10538112B2 (en) 2016-05-27 2020-01-21 Hp Scitex Ltd. Print media edge repair
CN111562273A (zh) * 2020-06-05 2020-08-21 大连工业大学 基于高光谱的鱼水射流除鳞轻微损伤可视化方法
CN114460075A (zh) * 2021-12-30 2022-05-10 南京华鼎纳米技术研究院有限公司 一种基于图像识别的纸张修补方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957637A (en) * 1954-06-24 1960-10-25 Research Corp Web control method and apparatus
DE9116763U1 (de) * 1991-07-23 1993-11-18 Grafotec Kotterer Gmbh, 86420 Diedorf Vorrichtung zum Durchtrennen und Halten einer gerissenen Bahn

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD244105A1 (de) * 1985-12-13 1987-03-25 Hank Dietrich Dr Ing Sicherheitsvorrichtung zum steuern einer rollenrotationsdruckmaschine
FR2766472B1 (fr) * 1997-07-22 1999-10-29 Heidelberger Druckmasch Ag Dispositif de secours en cas de rupture de bande de papier dans une machine rotative a imprimer en fonctionnement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957637A (en) * 1954-06-24 1960-10-25 Research Corp Web control method and apparatus
DE9116763U1 (de) * 1991-07-23 1993-11-18 Grafotec Kotterer Gmbh, 86420 Diedorf Vorrichtung zum Durchtrennen und Halten einer gerissenen Bahn

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10538112B2 (en) 2016-05-27 2020-01-21 Hp Scitex Ltd. Print media edge repair
US10987951B2 (en) 2016-05-27 2021-04-27 Hp Scitex Ltd. Print media edge repair
CN111562273A (zh) * 2020-06-05 2020-08-21 大连工业大学 基于高光谱的鱼水射流除鳞轻微损伤可视化方法
CN114460075A (zh) * 2021-12-30 2022-05-10 南京华鼎纳米技术研究院有限公司 一种基于图像识别的纸张修补方法
CN114460075B (zh) * 2021-12-30 2023-12-19 南京华鼎纳米技术研究院有限公司 一种基于图像识别的纸张修补方法

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