EP0835835A2 - System und Verfahren zum Ausrichten von Bahnen - Google Patents

System und Verfahren zum Ausrichten von Bahnen Download PDF

Info

Publication number
EP0835835A2
EP0835835A2 EP97117691A EP97117691A EP0835835A2 EP 0835835 A2 EP0835835 A2 EP 0835835A2 EP 97117691 A EP97117691 A EP 97117691A EP 97117691 A EP97117691 A EP 97117691A EP 0835835 A2 EP0835835 A2 EP 0835835A2
Authority
EP
European Patent Office
Prior art keywords
web
roll
medium
liner
alignment system
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Withdrawn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
EP97117691A
Other languages
English (en)
French (fr)
Other versions
EP0835835A3 (de
Inventor
Gideon Shahaf
Amit Shahaf
Evgeny Veiler
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.)
Opsigal-Control Systems Ltd
Opsigal Control Systems Ltd
Original Assignee
Opsigal-Control Systems Ltd
Opsigal Control Systems Ltd
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 Opsigal-Control Systems Ltd, Opsigal Control Systems Ltd filed Critical Opsigal-Control Systems Ltd
Publication of EP0835835A2 publication Critical patent/EP0835835A2/de
Publication of EP0835835A3 publication Critical patent/EP0835835A3/de
Withdrawn legal-status Critical Current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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/0326—Controlling transverse register of web by moving the unwinding device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/16—Associating two or more 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
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the present invention relates to automated control systems generally and to web guiding equipment in particular.
  • materials which are guided in web form tend to be thin paper, film or fabric. Often, the material wanders from its correct alignment on the web due to various factors, such as material irregularity, web speed or faulty machinery.
  • Web guiding systems are commonly used in production processes to correctly guide and tension the material on the web.
  • all automated control systems utilize actuators to correct web travel and sensors to detect the actual web position.
  • the actual web position is continuously compared with a pre-determined value by a controller which ensures that the appropriate corrections are made.
  • Actuators include pivoting frames, steering and pivoting rollers and tuming bars for example.
  • Pivoting frames are commonly used where space is at a premium.
  • Steering roller actuators are located in the infeed area of the positioning roller and simultaneously correct the web in two directions. Pivoting rollers are mostly used on continuously fed material webs, such as transport belts, where guiding accuracy tolerance of one centimeter is sufficient. Tune bars are used where it is necessary to change the web direction by 90 degrees and simultaneously make corrections.
  • An object of the present invention is to provide a web guiding system for corrugated boards which overcomes the limitations and disadvantages of prior art units.
  • a further object of the present invention is to provide a web guiding system which is easily installed and does not require additional machinery or major modifications to the existing web.
  • a yet further object of the present invention is to provide a web guiding system for corrugated boards which prevents glue contamination of single facer rolls.
  • a yet further object of the present invention is to provide a web guiding system for corrugated boards which controllably adjusts the glue dam in accordance with the web width.
  • a web alignment system which includes at least one liner web roll affixed to a first roll stand and at least one medium web roll affixed to a second roll stand.
  • the web alignment system is characterized by further including control means for pre-positioning the liner and medium web rolls prior to the commencement of unwinding of the liner web roll and the medium web roll.
  • the web alignment system also includes a corrugator and a glue dam for gluing the liner web roll to the medium web roll.
  • control means positions the glue dam with reference to the corrugator.
  • the positioning of the glue dam takes place prior to the commencement of unwinding of the medium web roll.
  • control means tracks and adjustably aligns the liner web roll and the medium web roll during operational movements to maintain the pre-positioning.
  • control means includes encoding position apparatus coupled to the liner roll stand and the medium roll stand.
  • control means further includes encoding position apparatus coupled to the glue dam.
  • the encoding position apparatus includes at least one cable transducer.
  • the encoding position apparatus includes at least one ultrasonic transducer.
  • control means further includes a plurality of laser sensors coupled to the web of the liner roll and the medium roll.
  • control means further comprises a database of dimensions of standard rolls.
  • a method for aligning a web having at least one liner web roll affixed to a first roll stand, at least one medium web roll affixed to a second roll stand, a corrugator and glue dam includes the step of pre-positioning at least one of the medium and the liner web rolls.
  • the step of pre-positioning is relative to the position of the corrugator.
  • the step of pre-positioning the glue dam is relative to the position of the corrugator.
  • the step of pre-positioning comprises the steps of:
  • FIG. 1 illustrates a web guiding system for corrugated boards, generally referenced 10, constructed and operative according to a preferred embodiment of the present invention.
  • Web guiding system 10 comprises a first roll stand 12 having at least one liner roll 14 affixed thereto, a second roll stand 16 having at least one medium (or fluting) roll 18 affixed thereto, a liner splicer 20 and a medium splicer 22, first and second pre-heaters 24 and 26, respectively a single facer 28 and a glue dam 30. All of the above referenced components of web guiding system 10 are standard, known in the art, components used for the production of single-faced corrugated cardboard sheet.
  • web guiding system 10 comprises a pair of liner rolls 14 and a pair of medium rolls 18.
  • one of each of the pair of liner and medium rolls 14 and 18, respectively is in use at any one time.
  • the second of the pair of liner and medium rolls 14 and 18, respectively are on standby and are placed in operation when the first pair of rolls are exhausted.
  • only one liner roll 14 and medium roll 18 is illustrated in Fig. 1.
  • Web guiding system 10 further comprises a pair of liner cable transducers, referenced 32L and 32M, respectively, a pair of ultrasonic transducers, generally referenced 34L and 34M, respectively, a plurality of laser sensors, generally referenced 36L and 36M, respectively, and control means, generally designated 40. Since cable transducers 32, ultrasonic transducers 34 and laser sensors 36 generally perform the same function for both liner rolls 14 and medium rolls 18, they have been referenced with the same numerals with the addition of suffixes "L" and "M", respectively, to distinguish which of the various components are attached to liner roll 14 and medium roll 18.
  • Control means 40 accurately pre-positions liner roll 14 and medium roll 18 and then constantly tracks both liner and medium rolls, 14 and 18, respectively, effecting any adjustments and alignment to the web edges which may be needed.
  • First roll stand 12 comprises at least one longitudinal element 42 to which are attached a pair of arms 44.
  • Liner roll 14 is retained by pair of arms 44 and is freely rotatable about a longitudinal axis defined by a line connecting pair of arms 44.
  • the liner roll web 46 is fed, via liner splicer 20 and first pre-heater 24, to the single-facer 28.
  • Each of cable transducers 32L and each of the ultrasonic transducers 34L are suitably coupled to the corresponding arm 44.
  • the plurality of laser sensors 36L are located either side of web 46, preferably between liner splicer 20 and first pre-heater 24.
  • second roll stand 16 comprises at least one longitudinal element 48 to which are attached a pair of arms 50.
  • Medium roll 18 is retained by arms 50 and is freely rotatable about a longitudinal axis defined by a line connecting arms 50.
  • the medium roll web 52 is fed via medium splicer 22 to second pre-heater 26 and thence to single-facer 28.
  • Each of cable transducers 32M and each of the ultrasonic transducers 34M are suitably coupled to the corresponding arm 50 of longitudinal element 48.
  • the plurality of laser sensors 36M are located either side of medium roll web 52, preferably between medium splicer 22 and second pre-heater 26.
  • Liner roll 14 and medium roll 18 are glued together in single-facer 28 to produce the corrugated board 54 which then exits via a plurality of rollers 56.
  • Cable transducers 32, ultrasonic transducers 34 and laser sensors 36 are standard known in the art components and are not further described. It will be appreciated by persons knowledgeable in the art that any suitable type of encoder for locating the position of apparatus may be used and that the present invention is not restricted to the use of cable and ultrasonic transducers 32 and 34, respectively which are described by way of example only. Furthermore, cable and ultrasonic transducers 32 and 34, respectively, may be interchangeably used. In an alternative embodiment, laser sensors may be used instead of ultrasonic sensors.
  • Glue dam 30 is a typical known in the art glue dam suitable for single spacer or double backer use. In the preferred embodiment, for the purposes of example only, a single spacer system is referred to. A cable transducer 58 is attached to glue dam 30 for positioning the glue dam 30.
  • Control means 40 which is suitably coupled to transducers 32, ultrasonic transducers 34 and laser sensors 36, processes data received from these components and regulates the positioning of first and second roll-stands 12 and 16, respectively and glue dam 30 accordingly.
  • Control means 40 comprises, inter alia, a database containing data (such as exact dimensions) of standard rolls.
  • Fig. 2 is a flow chart representation of the operation of web guiding system 10.
  • a standard medium roll 18 is placed on arms 50 of first roll stand 16 (step 202) and the operator closes arms 50 onto the medium roll 18 (step 204).
  • Cable and ultrasonic transducers 32M and 34M, respectively, (located on each arm 50) determine the width of the medium roll 18 and transmit this data to control means 40 (step 206).
  • Control means 40 refers to its database to lookup the exact dimensions of the medium roll 18 placed on arms 50 (step 208).
  • the medium roll 18 is then accurately positioned by means of the pair of ultrasonic transducers 34M which receive instructions from control means 40. (step 210).
  • step 212 The above operations (steps 202 - 210) are then carried out for liner roll 14 (step 212).
  • the glue dam 30 is then accurately positioned, by means of cable transducers 58 (step 214), according to the position set for medium roll 18.
  • the liner and medium rolls 14 and 18, respectively are independently pre-positioned prior to the unwinding of the rolls and that the position of the medium roll 18 is not determined by the common "master/slave" arrangement.
  • the positioning of the liner roll 14 is not dependent on the positioning of the medium roll 18, or vice versa.
  • control means 40 takes into account the offset between the material and the facer 28 to achieve accurate pre-positioning within a tolerance of +/- 3mm.
  • prior art web systems do not allow for the offset between paper and machine and if any adjustment is made, only adjust the rolls relative to each other at the gluing stage. Since approximately 15 to 20 m of paper travels from each roll to the glue dam 30 before gluing begins, pre-positioning and accurate adjustment of the glue dam 30 saves this normally wasted roll material.
  • a single facer has a vacuum or pressure slot to ensure that the fluting roll retains its gluing capabilities while being affixed to the liner roll 14.
  • the positioning of the web within the single facer takes into account the vacuum or pressure slots, thereby optimizing the web position within the facer.
  • on-line positioning takes place (step 216).
  • On-line positioning is controlled by laser sensors 36 in conjunction with control means 40.
  • Laser sensors 36 which generally only have a 30 mm range, sense the position of the liner and medium rolls 14 and 18, respectively and continuously transfer the data to control means 40.
  • Control means 40 adjusts liner and medium rolls 14 and 18, respectively via instructions to ultrasonic sensors 34.
  • a feature of the invention is the accurate alignment of a web without the need for changes to standard web guiding equipment or the addition of cross machine rollers for example.

Landscapes

  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Replacement Of Web Rolls (AREA)
EP97117691A 1996-10-13 1997-10-13 System und Verfahren zum Ausrichten von Bahnen Withdrawn EP0835835A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL11941696A IL119416A0 (en) 1996-10-13 1996-10-13 Web alignment system and method
IL11941696 1996-10-13

Publications (2)

Publication Number Publication Date
EP0835835A2 true EP0835835A2 (de) 1998-04-15
EP0835835A3 EP0835835A3 (de) 1998-12-02

Family

ID=11069374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117691A Withdrawn EP0835835A3 (de) 1996-10-13 1997-10-13 System und Verfahren zum Ausrichten von Bahnen

Country Status (3)

Country Link
EP (1) EP0835835A3 (de)
CA (1) CA2218305A1 (de)
IL (1) IL119416A0 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955903A1 (de) * 1999-11-20 2001-06-07 Linus Heil Kaschier-Vorrichtung
WO2003057606A1 (en) * 2001-12-21 2003-07-17 Kimberly-Clark Worldwide, Inc. Web detection with gradient-indexed optics
EP1496002A2 (de) * 2003-07-11 2005-01-12 Koenig & Bauer Aktiengesellschaft Verfahren und Vorrichtung zur seitlichen Ausrichtung einer Bahn
DE102005032599B3 (de) * 2005-07-13 2006-10-19 Koenig & Bauer Ag Vorrichtung und ein Verfahren zur Minimierung eines Kantenversatzes beim Ansetzen einer Materialbahn einer neuen Materialrolle an eine auslaufende Materialbahn einer ablaufenden Materialrolle
EP1757548A1 (de) * 2004-04-28 2007-02-28 Mitsubishi Heavy Industries, Ltd. Einseitige vorrichtung zum verstellen der bahnelementposition und einseitige leimvorrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113307071B (zh) * 2021-04-21 2022-04-29 彩虹（合肥）液晶玻璃有限公司 一种玻璃基板隔离pe膜自动纠偏装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152941A (en) * 1960-12-14 1964-10-13 Corrugating Technicians Inc Multi-ply web forming apparatus with edge aligning means

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152941A (en) * 1960-12-14 1964-10-13 Corrugating Technicians Inc Multi-ply web forming apparatus with edge aligning means

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955903A1 (de) * 1999-11-20 2001-06-07 Linus Heil Kaschier-Vorrichtung
DE19955903C2 (de) * 1999-11-20 2002-08-29 Linus Heil Kaschier-Vorrichtung
WO2003057606A1 (en) * 2001-12-21 2003-07-17 Kimberly-Clark Worldwide, Inc. Web detection with gradient-indexed optics
EP1496002A2 (de) * 2003-07-11 2005-01-12 Koenig & Bauer Aktiengesellschaft Verfahren und Vorrichtung zur seitlichen Ausrichtung einer Bahn
EP1496002A3 (de) * 2003-07-11 2005-03-16 Koenig & Bauer Aktiengesellschaft Verfahren und Vorrichtung zur seitlichen Ausrichtung einer Bahn
EP1757548A1 (de) * 2004-04-28 2007-02-28 Mitsubishi Heavy Industries, Ltd. Einseitige vorrichtung zum verstellen der bahnelementposition und einseitige leimvorrichtung
EP1757548A4 (de) * 2004-04-28 2010-04-07 Mitsubishi Heavy Ind Ltd Einseitige vorrichtung zum verstellen der bahnelementposition und einseitige leimvorrichtung
DE102005032599B3 (de) * 2005-07-13 2006-10-19 Koenig & Bauer Ag Vorrichtung und ein Verfahren zur Minimierung eines Kantenversatzes beim Ansetzen einer Materialbahn einer neuen Materialrolle an eine auslaufende Materialbahn einer ablaufenden Materialrolle

Also Published As

Publication number Publication date
CA2218305A1 (en) 1998-04-13
EP0835835A3 (de) 1998-12-02
IL119416A0 (en) 1997-01-10

Similar Documents

Publication Publication Date Title
US5849123A (en) Apparatus and method for aligning webs
US5087313A (en) Paper web alignment system
EP0698752B1 (de) Riemenverstellvorrichtung und Maschine zum einseitigen Kaschieren von Wellband
US4392910A (en) Web aligning process and apparatus
US5437749A (en) Splice synchronization system
US20030000988A1 (en) Deskewing device for corrugated cardboard manufacturing system
EP0825016B1 (de) Anlage für die Herstellung von Wellpappe
KR100852257B1 (ko) 다중 원단 접합을 위한 정렬장치 및 그 방법
EP0835835A2 (de) System und Verfahren zum Ausrichten von Bahnen
EP0734849B1 (de) Verfahren und Vorrichtung zur Kontrollierung des Auftragens von Leim auf Wellenpapier
US3152941A (en) Multi-ply web forming apparatus with edge aligning means
US10875735B2 (en) Device and method for automatic splicing
JP2019177652A (ja) 段ボールシートの製造装置
CA2187743C (en) Device and process for combining and processing several paper webs
EP1757548A1 (de) Einseitige vorrichtung zum verstellen der bahnelementposition und einseitige leimvorrichtung
JP3716246B2 (ja) シングルフェーサにおけるウェブ材の位置調整装置
JP7062297B2 (ja) シート材の位置調整方法
JPH08258187A (ja) コルゲートマシンの糊付方法及び装置
WO2023243216A1 (ja) 段ボールシートの製造装置および方法
WO2022138570A1 (ja) 段ボールシートの紙継ぎ部検出装置および段ボールシートの製造装置
JP3209545U (ja) 片面段ボールシートのガイド装置
JP7181619B2 (ja) シート材の位置調整方法
KR20230129312A (ko) 원지들의 시간적 위치 조정을 위한 방법
JP6063528B1 (ja) シート材の走行位置検出方法
KR20240042528A (ko) 변환기

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: A2

Designated state(s): DE DK ES FR GB IT NL SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

RHK1 Main classification (correction)

Ipc: B65H 39/16

17P Request for examination filed

Effective date: 19990601

AKX Designation fees paid

Free format text: DE DK ES FR GB IT NL SE

17Q First examination report despatched

Effective date: 20010316

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010501