US3546067A - Apparatus for breaking the curl in traveling material webs formed of paper,cardboard or the like - Google Patents

Apparatus for breaking the curl in traveling material webs formed of paper,cardboard or the like Download PDF

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Publication number
US3546067A
US3546067A US622328A US3546067DA US3546067A US 3546067 A US3546067 A US 3546067A US 622328 A US622328 A US 622328A US 3546067D A US3546067D A US 3546067DA US 3546067 A US3546067 A US 3546067A
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US
United States
Prior art keywords
breaking
round bar
roll
paper
curl
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
US622328A
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English (en)
Inventor
Walter Heidepriem
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.)
Jagenberg Werke AG
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Jagenberg Werke AG
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Filing date
Publication date
Application filed by Jagenberg Werke AG filed Critical Jagenberg Werke AG
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Publication of US3546067A publication Critical patent/US3546067A/en
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    • 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
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/34—Apparatus for taking-out curl from webs
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
    • D21F11/08—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type paper or board consisting of two or more layers
    • 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
    • B65H2511/10—Size; Dimensions
    • B65H2511/14—Diameter, e.g. of roll or package

Definitions

  • the present invention has reference to an improved apparatus for the so-called breaking or bending of traveling material webs formed of paper, cardboard or the like, wherein this breaking operation eliminates the roll curl or curvature of the paper and produces a flat condition of the web of material. Hench, the term breaking as employed herein refers to the bending of the material web in order to remove the curl appearing thereat due to such material having been wound upon a roll.
  • Breaking devices have become known to the art which are formed by a stationary breaking ledge constructed to possess more or less sharp edges.
  • the friction between the stationary breaking ledge and the paper web exerts a disadvantageous effect upon the surface of the paper web, and such disadvantageous effect increases with sensitive paper, especially with coated or supercalendered paper.
  • rollers or drums as a breaking device.
  • These rollers must possess a relatively large diameter in order to prevent bending through or sagging, with the result that there is automatically brought about a reduced breaking action.
  • rollers possessing smaller diameters which, however, in order to prevent a bending through require a plurality of support bearings, the arrangement and construction of which unfavorably influence the effective looping angle or angle of wrap, and therefore, the breaking action.
  • considerable oscillations occur in the range of critical rotational speeds which lead to noisy operation of the breaking roll.
  • Another, more specific object of this invention relates to the provision of a simple, highly effective breaking apparatus of the mentioned type which works without any appreciable friction, and further which manifests itself by its quiet operation free of oscillations also at high working speeds.
  • a round bar which is partially wrapped by the paper web and functioning as a breaking device is mounted to be freely rotatable upon at least two support or backing rolls or backing roll groups which bear against the peripheral surface of the aforesaid round bar.
  • a particularly advantageous and positive mounting of the round bar is achieved if three backing rolls are provided, two of which are arranged externally of the looping angle or angle of wrap of the round bar and the one remaining backing roll being located within such looping angle.
  • the backing rolls and thus the round bar are advantageously adjustably arranged between two guide rollers which guide the paper web.
  • a particularly simple and effective construction results if the backing rolls and thus the round bar are displaceable in the direction of the bisector of the looping angle.
  • the entire arrangement can also be undertaken in such a manner that the freely rotatble round or circular bar is mounted to be stationary, whereas the guide rollers which guide the paper web are constructed to be displaceable.
  • the bearing or contact pressure between the backing rolls and the round bar is adjustable. Owing to this measure it is possible to properly take into account the momentary working conditions and the properties of the paper web. Regulation or control of the contact or bearing pressure is undertaken in that, the backing roll which is arranged inside of the looping angle of the round bar is mounted, at pivotal lever means. Furthermore, it can be advantageous to mount the round bar so that it is exchangeable in order to be able, when necessary, to replace one round bar with another of a different diameter. A further possibility for changing the diameter of the round bar exists if this diameter is constructed to be changeable. Such possibility of varying the diameter of the round bar can be achieved if it is formed by an elastic hollow body which can be expanded or blown up by introducing a pressurized medium.
  • FIG. 1 schematically illustrates a side view of a preferred embodiment of the inventive breaking apparatus
  • FIG. 2 is a cross-sectional view of the apparatus depicted in FIG. 1, taken along the line 22 thereof;
  • FIG. 3 schematically illustrates an embodiment of a control mechanism for the automatic regulation of the breaking operation
  • FIG. 4 depicts the control mechanism of FIG. 3 with the round bar in a position assumed towards the end of the delivery operation of the paper web from the supply roll.
  • a rotatable round or circular bar 4 constructed as a breaking device.
  • the round bar 4 which is partially wrapped by the paper web 1 is freely rotatably mounted in a saddle formed by the support or backing rolls 5 and '6.
  • These backing rolls 5 and 6, as best shown in FIG. 2 are likewise freely rotatably mounted in a bracket means 7 which is secured to a holder 8.
  • Holder 8 is fixedly connected at each end with a respective plate member 9 which is displaceably guided in rail means 10.
  • this round bar 4 braces itself at its end faces against ball-thrust bearings 11 which are secured to the plate members 9.
  • a third support or backing roll 12 which bears against the peripheral surface of such round bar 4 at the region of wrap or looping of the paper web 1 about the aforesaid round bar.
  • This backing roll 12 is mounted in pivotal lever means 13 having a respective pivot point or shaft 14 provided at the associated plate member 9.
  • a hydraulic or pneumatic cylinder 16 which is likewise secured to the plate member 9.
  • FIGS. 3 and '4 there is schematically illustrated an embodiment of an automatic regulation of the breaking operation, and specifically, FIG. 3 depicts the position of the round or circular bar 4 at the beginning of the paying-out operation, whereas FIG. 4 shows the position of the round bar 4 at the end of such paying-out or delivery operation.
  • the braking force regulator 20 is operably coupled with a suitable pressure measuring device 21 whose measurement value or result which is dependent upon the braking force produces an electrical horre with the aid of the impulse transformer 22.
  • This impulse transformer 22 acts upon a regulating or adjustment motor 24 through the agency of an amplifier 23.
  • the regulating motor 24 operates the adjustment spindle 17 through the intermediary of the speed reduction drive 25, 'whereby the plate 9 and thereby the round bar 4 is moved during the course of the paying-out operation from the position shown in FIG. 3 into the position shown in FIG. 4.
  • the impulse for actuating the adjustment motor 24 can also be produced by a feeler which scans the diameter of the supply roll 19 or by a rotational speed monitor driven by the shaft of the supply roll. In each instance there is produced a continually changing breaking action which automatically increases with decreasing diameter of the supply roll.
  • Apparatus for decurling continuously moving webs of material having a tendency to curl comprising a freely rotatable round bar partially enveloped by such web, so as to define a looping angle, at least two laterally spaced back-up roll means positioned adjacent said bar and engaging the circumference thereof on one side of such web, a third rolling contact support roll means positioned to engage such a web on the other side thereof and within said looping angle and press such bar into rolling contact with said at least two back-up roll means, means for regulating the contact pressure between all said roll means and said round bar comprising pivotal lever means for displaceably supporting said third rolling contact support roll means disposed within said looping angle.
  • Apparatus for decurling continuously moving webs of material having a tendency to curl comprising a freely rotatable round bar partially enveloped by such web, so as to define a looping angle, at least two laterally spaced back-up roll means positioned adjacent said bar and engaging the circumference thereof on one side of such web, a third rolling contact support roll means positioned to engage such a web on the other side thereof and within said looping angle and press such bar into rolling contact with said at least two back-up roll means, a pair of guide roll means for guiding such web, a vertically movable frame means mounted to be movable in a plane transverse to and between the vertical planes containing the axes of said guide roll means, said at least two laterally spaced back-up roll means being carried by said frame means, a pivot shaft means carried by said frame means in vertically spaced relation to said at least two back-up roll means, lever means extending from said pivot shaft means, said third roll means being carried by said lever means, and movable means operably connected between said

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Replacement Of Web Rolls (AREA)
  • Paper (AREA)
US622328A 1966-03-24 1967-03-10 Apparatus for breaking the curl in traveling material webs formed of paper,cardboard or the like Expired - Lifetime US3546067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ0030428 1966-03-24

Publications (1)

Publication Number Publication Date
US3546067A true US3546067A (en) 1970-12-08

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Application Number Title Priority Date Filing Date
US622328A Expired - Lifetime US3546067A (en) 1966-03-24 1967-03-10 Apparatus for breaking the curl in traveling material webs formed of paper,cardboard or the like

Country Status (5)

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US (1) US3546067A (fi)
DE (1) DE1511261C3 (fi)
FI (1) FI46489C (fi)
GB (1) GB1134992A (fi)
SE (1) SE326098B (fi)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670645A (en) * 1970-03-30 1972-06-20 Westvaco Corp Decurling method and apparatus
US3971696A (en) * 1975-10-01 1976-07-27 The Moore & White Company Paper web decurling apparatus
US4111745A (en) * 1977-08-08 1978-09-05 The Moore & White Company Adjustable bearing assembly for web decurling apparatus
US5141484A (en) * 1988-05-10 1992-08-25 Kobayashi Engineering Works, Ltd. Sheet curls reformer
US5153662A (en) * 1992-04-06 1992-10-06 Xerox Corporation Sheet decurling apparatus
US5357327A (en) * 1992-04-06 1994-10-18 Xerox Corporation Sheet decurling system including cross-curl
US20030103132A1 (en) * 2001-12-04 2003-06-05 Seiko Epson Corporation Roll paper curl correction device and record apparatus with the roll paper curl correction device
US20080098790A1 (en) * 2006-10-31 2008-05-01 Hewlett-Packard Development Company Lp Sheet bending
DE102009022248A1 (de) 2009-05-20 2010-12-09 E.C.H. Will Gmbh Entwölbungsvorrichtung zur Entwölbung einer Materialbahn, insbesondere in einer Anlage der papierverarbeitenden Industrie
US20120223116A1 (en) * 2011-03-01 2012-09-06 Xerox Corporation Dual operation de-curler
WO2012145878A1 (zh) * 2011-04-27 2012-11-01 Zhu Qingdong 瓦楞纸板卷翘的校平装置
CN109205368A (zh) * 2018-06-29 2019-01-15 黄山豪泰塑胶有限公司 一种防尘型pvc地板彩膜收卷装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2649051C2 (de) * 1976-10-28 1979-01-04 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Vorrichtung zum Glätten von Bogen mittels Saugluft
JPS58170619U (ja) * 1982-05-10 1983-11-14 大日本スクリ−ン製造株式会社 ロ−ルペ−パ感材の送り出しニツプロ−ラの浮かし装置
JPH0688710B2 (ja) * 1988-05-10 1994-11-09 株式会社小林製作所 シートカール矯正装置
CN107601125B (zh) * 2017-08-11 2019-06-14 安徽嘉利网业织造有限公司 一种纺织用织布印花压平装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149069A (en) * 1936-08-06 1939-02-28 Frederic K Plympton Straightening machine
US2918897A (en) * 1958-07-28 1959-12-29 Mercury Engineering Corp Apparatus for decurling a web
US3185616A (en) * 1963-02-04 1965-05-25 Zerand Corp Web decurling apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149069A (en) * 1936-08-06 1939-02-28 Frederic K Plympton Straightening machine
US2918897A (en) * 1958-07-28 1959-12-29 Mercury Engineering Corp Apparatus for decurling a web
US3185616A (en) * 1963-02-04 1965-05-25 Zerand Corp Web decurling apparatus

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670645A (en) * 1970-03-30 1972-06-20 Westvaco Corp Decurling method and apparatus
US3971696A (en) * 1975-10-01 1976-07-27 The Moore & White Company Paper web decurling apparatus
US4111745A (en) * 1977-08-08 1978-09-05 The Moore & White Company Adjustable bearing assembly for web decurling apparatus
US5141484A (en) * 1988-05-10 1992-08-25 Kobayashi Engineering Works, Ltd. Sheet curls reformer
US5153662A (en) * 1992-04-06 1992-10-06 Xerox Corporation Sheet decurling apparatus
US5357327A (en) * 1992-04-06 1994-10-18 Xerox Corporation Sheet decurling system including cross-curl
EP1318093A3 (en) * 2001-12-04 2004-12-22 Seiko Epson Corporation Roll paper curl correction device and record apparatus with the roll paper curl correction device
EP1318093A2 (en) * 2001-12-04 2003-06-11 Seiko Epson Corporation Roll paper curl correction device and record apparatus with the roll paper curl correction device
US20030103132A1 (en) * 2001-12-04 2003-06-05 Seiko Epson Corporation Roll paper curl correction device and record apparatus with the roll paper curl correction device
US6908242B2 (en) 2001-12-04 2005-06-21 Seiko Epson Corporation Roll paper curl correction device and record apparatus with the roll paper curl correction device
US20080098790A1 (en) * 2006-10-31 2008-05-01 Hewlett-Packard Development Company Lp Sheet bending
US7641193B2 (en) 2006-10-31 2010-01-05 Hewlett-Packard Development Company, L.P. Sheet bending
DE102009022248A1 (de) 2009-05-20 2010-12-09 E.C.H. Will Gmbh Entwölbungsvorrichtung zur Entwölbung einer Materialbahn, insbesondere in einer Anlage der papierverarbeitenden Industrie
DE102009022248B4 (de) 2009-05-20 2019-04-25 Bw Papersystems Hamburg Gmbh Entwölbungsvorrichtung zur Entwölbung einer Materialbahn, insbesondere in einer Anlage der papierverarbeitenden Industrie
US20120223116A1 (en) * 2011-03-01 2012-09-06 Xerox Corporation Dual operation de-curler
US8795571B2 (en) * 2011-03-01 2014-08-05 Xerox Corporation Dual operation de-curler
WO2012145878A1 (zh) * 2011-04-27 2012-11-01 Zhu Qingdong 瓦楞纸板卷翘的校平装置
CN109205368A (zh) * 2018-06-29 2019-01-15 黄山豪泰塑胶有限公司 一种防尘型pvc地板彩膜收卷装置

Also Published As

Publication number Publication date
DE1511261C3 (de) 1974-11-07
SE326098B (fi) 1970-07-13
FI46489C (fi) 1973-04-10
GB1134992A (en) 1968-11-27
DE1511261B2 (de) 1974-03-07
FI46489B (fi) 1973-01-02
DE1511261A1 (de) 1969-07-10

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