EP0795505A3 - Device for flying roll-changing in an unwinding station under constant web tension - Google Patents

Device for flying roll-changing in an unwinding station under constant web tension Download PDF

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Publication number
EP0795505A3
EP0795505A3 EP97101314A EP97101314A EP0795505A3 EP 0795505 A3 EP0795505 A3 EP 0795505A3 EP 97101314 A EP97101314 A EP 97101314A EP 97101314 A EP97101314 A EP 97101314A EP 0795505 A3 EP0795505 A3 EP 0795505A3
Authority
EP
European Patent Office
Prior art keywords
speed
control device
web
primary winding
web tension
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Withdrawn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
EP97101314A
Other languages
German (de)
French (fr)
Other versions
EP0795505A2 (en
Inventor
Zygmunt Madrzak
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.)
Voith Patent GmbH
Original Assignee
Voith Sulzer Papiermaschinen GmbH
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 Voith Sulzer Papiermaschinen GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0795505A2 publication Critical patent/EP0795505A2/en
Publication of EP0795505A3 publication Critical patent/EP0795505A3/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Withdrawn legal-status Critical Current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
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/181—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/32—Torque e.g. braking torque

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

Eine Abrollstation für Bahnen, insbesondere Papierbahnen, mit je einer Lagerung für einen Primärwickel (3) und für einen Sekundärwickel sowie mit einer Einrichtung zum fliegenden Ankleben des Bahnanfanges des Primärwickels an das Bahnende des Sekundärwickels umfaßt einen antreibbaren oder bremsbaren Primärwickel (3) sowie eine mit einer Regeleinrichtung (11) verbundene Steuereinheit des Antriebsaggregates (10). Erfindungsgemäß ist vorgesehen, daß die Regeleinrichtung (11) eine Drehzahlregeleinrichtung umfaßt, die das Antriebsaggregat auf eine Drehzahl nb regelt, derart, daß die Umlaufgeschwindigkeit des Primärwickels größer als die Geschwindigkeit der vom Sekundärwickel ablaufenden Bahn ist, und die Drehzahlregeleinrichtung durch Umsteuerung auf generatorischen Betrieb die Umlaufgeschwindigkeit des Primärwickels von der Drehzahl nb auf eine Drehzahl nsynch herunterregelt, die der Ablaufgeschwindigkeit der Bahn vom Sekundärwickel entspricht. Desweiteren steuert die Regeleinrichtung (11) das Herabfahren auf die Drehzahl nsynch derart, daß die Bremskraft im Zeitpunkt der Übernahme der Bahn vom Primärwickel der Kraft entspricht, die zur Aufrechterhaltung des Bahnzuges benötigt wird. Außerdem ist erfindungsgemäß eine Bahnzugregeleinrichtung (13) vorgesehen, die den Bahnzug nach dem Ankleben aufrecht erhält.

Figure 00000001
A unwind station for webs, in particular paper webs, each with a storage for a primary winding (3) and for a secondary winding, and with a device for gluing the beginning of the web of the primary winding to the end of the secondary winding, includes a drivable or brakable primary winding (3) and one a control unit of the drive unit (10) connected to a control device (11). According to the invention, the control device (11) comprises a speed control device which controls the drive unit to a speed n b , such that the rotational speed of the primary winding is greater than the speed of the web running off the secondary winding, and the speed control device by changing over to regenerative operation regulates the rotational speed of the primary winding from the rotational speed n b to a rotational speed n synch which corresponds to the running speed of the web from the secondary winding. Furthermore, the control device (11) controls the descent to the speed n synch such that the braking force at the time the web is taken over from the primary winding corresponds to the force required to maintain the web tension. In addition, a web tension control device (13) is provided according to the invention, which maintains the web tension after gluing.
Figure 00000001
EP97101314A 1996-03-15 1997-01-29 Device for flying roll-changing in an unwinding station under constant web tension Withdrawn EP0795505A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29604882U DE29604882U1 (en) 1996-03-15 1996-03-15 Device for flying reel change in a unwind station with a constant web tension
DE29604882U 1996-03-15

Publications (2)

Publication Number Publication Date
EP0795505A2 EP0795505A2 (en) 1997-09-17
EP0795505A3 true EP0795505A3 (en) 1998-02-04

Family

ID=8021172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101314A Withdrawn EP0795505A3 (en) 1996-03-15 1997-01-29 Device for flying roll-changing in an unwinding station under constant web tension

Country Status (4)

Country Link
US (1) US5732903A (en)
EP (1) EP0795505A3 (en)
JP (1) JPH1017182A (en)
DE (1) DE29604882U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109989972A (en) * 2019-04-17 2019-07-09 嘉兴济铭商贸有限公司 A kind of backlight module clamping mechanism

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6016989A (en) * 1998-08-24 2000-01-25 Beloit Technologies, Inc. Paper web autosplicer
FI114907B (en) * 2000-02-15 2005-01-31 Metso Paper Inc Method and device in unwinding
DE10060757A1 (en) * 2000-12-07 2002-06-13 Heidelberger Druckmasch Ag Automatic roll changer for web-fed rotary printer splices end of new roll to end of old roll passing over dancer roll, adjuster for dancer roll keeping old web under constant tension before splicing
US7201345B2 (en) * 2003-09-30 2007-04-10 Rockwell Automation Technologies, Inc. Reeled material splicing method and apparatus
DE102013224324A1 (en) 2013-11-28 2015-05-28 Robert Bosch Gmbh Method for operating a web-processing machine with flying reel change

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151594A (en) * 1976-02-26 1979-04-24 Bobst-Champlain, Inc. Web tension control for high-speed web handling equipment
DE4428739C1 (en) * 1994-08-13 1996-02-08 Voith Gmbh J M Equipment for rapid paper roll exchange in unrolling station

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564150A (en) * 1983-11-28 1986-01-14 Enkel Corporation Apparatus for continuously supplying a web of sheet material
SE469891B (en) * 1991-11-01 1993-10-04 Amal Ab Device at a roller rack for synchronizing the speed of the replacement path to the speed of the drain

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151594A (en) * 1976-02-26 1979-04-24 Bobst-Champlain, Inc. Web tension control for high-speed web handling equipment
DE4428739C1 (en) * 1994-08-13 1996-02-08 Voith Gmbh J M Equipment for rapid paper roll exchange in unrolling station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109989972A (en) * 2019-04-17 2019-07-09 嘉兴济铭商贸有限公司 A kind of backlight module clamping mechanism

Also Published As

Publication number Publication date
US5732903A (en) 1998-03-31
JPH1017182A (en) 1998-01-20
EP0795505A2 (en) 1997-09-17
DE29604882U1 (en) 1996-06-27

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