EP0604531A1 - Production de carton ondule et appareil approprie. - Google Patents

Production de carton ondule et appareil approprie.

Info

Publication number
EP0604531A1
EP0604531A1 EP92920069A EP92920069A EP0604531A1 EP 0604531 A1 EP0604531 A1 EP 0604531A1 EP 92920069 A EP92920069 A EP 92920069A EP 92920069 A EP92920069 A EP 92920069A EP 0604531 A1 EP0604531 A1 EP 0604531A1
Authority
EP
European Patent Office
Prior art keywords
gears
flute
tip
corrugating rolls
rolls
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
EP92920069A
Other languages
German (de)
English (en)
Other versions
EP0604531B1 (fr
EP0604531A4 (en
Inventor
Peter Robert Mckinlay
Neil William Shaw
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.)
Amcor Pty Ltd
Original Assignee
Amcor Pty 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 Amcor Pty Ltd filed Critical Amcor Pty Ltd
Publication of EP0604531A1 publication Critical patent/EP0604531A1/fr
Publication of EP0604531A4 publication Critical patent/EP0604531A4/en
Application granted granted Critical
Publication of EP0604531B1 publication Critical patent/EP0604531B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2813—Making corrugated cardboard of composite structure, e.g. comprising two or more corrugated layers

Definitions

  • This invention provides an improvement in the basic apparatus and also the variations of the same as previously discussed.
  • the invention therefore provides a corrugated board making apparatus capable of forming corrugated boards having two fluted mediums bonded together at the flute tips, comprising two pairs of corrugating rolls synchronised so that the two fluted mediums are oriented for precise flute tip to flute tip bonding, wherein cooperating end gears are provided on the corrugating rolls which orientate the fluted mediums for flute tip to flute tip bonding.
  • the end gears are provided specifically on the corrugating rolls which co-operate tip to tip and bring the corrugated mediums together for tip to tip bonding.
  • a set of end gears is fitted to each end of the said corrugating rolls.
  • end gears advantageously aids in maintaining identical surface speed at the tips of the flutes to be bonded, thus resulting in the precise alignment of the corrugating rolls to each other.
  • the alignment of the flute tips of the respective corrugated mediums is achieved, which is essential in order to obtain consistent enhancement of board performance and maximum reduction in medium and liner weights.
  • End gears are preferably but not essentially fitted to each end of each pair of central corrugating rolls and consist of one full face gear and one split face gear to allow . adjustment of backlash.
  • the end gears are preferably abutting end gears and are preferably installed a short distance from the grooved face of each corrugating roll advantageously assisting in reducing the twisting of shafts.
  • the use of abutting end gears allows the use of conventional vacuum corrugating rolls with standard sized trunnions and minimises the torsional deflection which generally occurs.
  • By providing abutting end gears to both ends of the corrugating rolls the general rigidity of the apparatus and the reduction in the twisting of the shafts is further enhanced.
  • the end gears may be non-abutting end gears or can be fitted outside the vacuum collectors and also outside the machine frames.
  • Non-abutting gears can be used when the corrugating rolls have larger trunnions and thus the ability to resist the high torsional stresses arising from the point to point pressure occasioned during the tip to tip bonding process.
  • the end gears are preferably precision ground so that the intermeshing is precise.
  • the end gears can be spur gears or helical gears.
  • the gears may be split. If there are gears provided at each end they are preferably split at each end. The split gear may then mate with a gear of larger face width on the other corrugating roll. This arrangement assists in taking up backlash and allows transmission of at least 50% of the applied torque, thus preventing, further the twisting of the corrugating rolls and shafts.
  • Figure 1 shows a schematic view of a single facer unit of the kind disclosed in Australian Patent No. 609089.
  • Figure 2 shows a cross-section view of the corrugating rolls with abutting end gears attached.
  • Figure 1 illustrates a single facer unit of the kind disclosed in Australian Patent
  • the corrugating medium, 1 and 2 maintained on mill roll stands (not shown) and generally passed over a preheater (not shown) is fed onto one (items 3 and
  • the medium, 1 and 2 is corrugated and then adhesive is applied to at least one of the surfaces of 1 or 2, by an adhesive station 7.
  • the corrugated medium, 1 and 2 is then joined together flute tip to flute tip, when brought together by corrugating rolls 4 and 6.
  • the two combined corrugating mediums are fed onto the carrier roll 12 and after glue is applied to the flute tips, they are transported to the bonding zone wherein the liner 9 is brought into contact with the flute tips and heat applied by heater 11.
  • the carrier rolls 12 then transports the combined liner and mediums to a point where the product is fed into an inclined transport conveyor 14 for discharge on to the corrugator bridge.
  • the vacuum collectors 17 and connections therefrom to the corrugating roils 4 and 6 can pass through the end gears 15A, 15B, 16A and 16B to communicate with the corrugating rolls 6 and 4.
  • the vacuum collectors 17 are spring- loaded by spring arrangement 19 to ensure a secure but resilient contact between the end gears (15A, 15B, 16A and 16B) and the vacuum collector system 17.
  • the end gears need not always abut the corrugating rolls and this is dependent on the diameter of the corrugating rolls with larger diameter shafts.
  • the end gears need not abut the rolls and can be even housed outside of the main housing.
  • vacuum is not used to assist in retaining and carrying the cardboard on the corrugating roll and the alternative fingers are used, it is possible to separate the end gears away from the corrugating rolls, since larger rolls can be used.
  • the diameter of the corrugating rolls and shafts may be limited in order to produce the desired flute pitch and depth. In these cases it may be necessary to abut the end gears in order to maximise the rigidity of the apparatus.
  • split spur gear 16A is extended to assist in taking up backlash and allow transmission of the applied torque.
  • face width of the end gears is governed by the braking torque required which as a general rule is at least three (3) times the drive torque created.
  • End gear 16A and 16B is driven by its cooperation with end gears 15A and 15B and drives the carrier rolls 12 via a ring gear (not shown) attached to the carrier roll 12.
  • the end gears can drive a toothed belt if used.
  • the end gears 15A and 15B and 16A and 16B may be fixed to the shafts of the corrugating rolls 4 and 6 by any locking assembly, for example multi-taper lock sleeves, item 21.
  • the only requirement of the locking assembly is that the gears are precisely retained in position to transmit high peripheral forces without circumferential movement.
  • fixing screws 20 may be used which also allow for adjustment of the gears relative to each other in order to reduce backlash.
  • fixing screws 20 can also be incorporated on split gears 16A and 16B.
  • the end gears 15A, 15B, 16A and 16B depending on their proximity to the corrugating rolls may have a shroud (not shown) shielding the board being processed and preventing entanglement of the board in the rotating end gears.
  • end gears must be applied to at least the corrugating rolls which are directly involved in flute-tip to flute-tip bonding
  • end gears can be applied to other rolls such as carrier rolls, or toothed belt mechanisms.
  • the frame 18 may also be reinforced and/or improved in order to increase frame rigidity and thus generally greater apparatus rigidity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Paper (AREA)
  • Making Paper Articles (AREA)
  • Laminated Bodies (AREA)

Abstract

Procédé et appareil améliorés utilisés pour produire des structures de carton dans lesquelles deux supports ondulés sont collés ensemble au niveau des extrémités de leurs cannelures. Des roues dentées d'extrémité (16a, 16b, 15a, 15b) sont prévues, au moins sur les extrémités des cylindres d'ondulation (4, 6) qui effectuent le collage bout à bout. Les roues dentées d'extrémité peuvent être attenantes ou non et peuvent être prévues sur les deux extrémités des cylindres d'ondulation, qui servent au collage bout à bout.
EP92920069A 1991-09-17 1992-09-16 Appareil pour la production de carton ondulé Expired - Lifetime EP0604531B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPK835991 1991-09-17
AU8359/91 1991-09-17
PCT/AU1992/000486 WO1993005957A1 (fr) 1991-09-17 1992-09-16 Production de carton ondule et appareil approprie

Publications (3)

Publication Number Publication Date
EP0604531A1 true EP0604531A1 (fr) 1994-07-06
EP0604531A4 EP0604531A4 (en) 1994-08-17
EP0604531B1 EP0604531B1 (fr) 1996-12-18

Family

ID=3775684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92920069A Expired - Lifetime EP0604531B1 (fr) 1991-09-17 1992-09-16 Appareil pour la production de carton ondulé

Country Status (16)

Country Link
EP (1) EP0604531B1 (fr)
JP (1) JP3428985B2 (fr)
CN (1) CN1040407C (fr)
AT (1) ATE146399T1 (fr)
AU (1) AU655076B2 (fr)
BR (1) BR9206502A (fr)
CA (1) CA2115352C (fr)
DE (1) DE69216102T2 (fr)
DK (1) DK0604531T3 (fr)
FI (1) FI110676B (fr)
MY (1) MY107173A (fr)
NO (1) NO316214B1 (fr)
NZ (1) NZ244327A (fr)
SG (1) SG43910A1 (fr)
WO (1) WO1993005957A1 (fr)
ZA (1) ZA927074B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0183515B1 (ko) * 1995-04-11 1999-04-15 김승무 2중 골심판지 및 그 성형방법과 장치
AUPN367095A0 (en) * 1995-06-20 1995-07-13 Amcor Limited Corrugated board manufacture
AU703704B2 (en) * 1996-03-14 1999-04-01 Orora Packaging Australia Pty Ltd Improvements in corrugated paperboard machinery
AUPN865896A0 (en) * 1996-03-14 1996-04-04 Amcor Limited Improvements in corrugated paperboard machinery

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB145854A (en) * 1919-03-29 1920-06-29 William Grant Fiske Improvements in or relating to corrugated cardboard, strawboard, fibreboard and the like
US1802522A (en) * 1926-05-21 1931-04-28 Moll Jacob Corrugated cardboard
US2576281A (en) * 1950-06-09 1951-11-27 Aloysius J Carr Corrugating machine
US4196046A (en) * 1978-06-12 1980-04-01 Weyerhaeuser Company Adjuster for corrugating rolls
AU609089B2 (en) * 1987-02-18 1991-04-26 Amcor Limited Manufacturing corrugated board
BR8800608A (pt) * 1987-02-18 1988-09-27 Amcor Ltd Aparelho e metodo para fabricar papelao corrugado de face unica
CA1312540C (fr) * 1987-12-18 1993-01-12 Peter Gordon Bennett Appareil servant a former des ouvrages en carton ondule, et methode connexe
AU615053B2 (en) * 1988-03-31 1991-09-19 Amcor Limited Manufacturing corrugated board

Also Published As

Publication number Publication date
NO940923D0 (no) 1994-03-15
CA2115352C (fr) 2002-07-16
JPH06510494A (ja) 1994-11-24
ATE146399T1 (de) 1997-01-15
FI110676B (fi) 2003-03-14
DE69216102D1 (de) 1997-01-30
FI941232L (fi) 1994-03-16
DK0604531T3 (da) 1997-06-09
HK1005440A1 (en) 1999-01-08
AU2576892A (en) 1993-04-27
EP0604531B1 (fr) 1996-12-18
ZA927074B (en) 1993-03-30
EP0604531A4 (en) 1994-08-17
CN1071621A (zh) 1993-05-05
NZ244327A (en) 1994-03-25
AU655076B2 (en) 1994-12-01
CA2115352A1 (fr) 1993-04-01
CN1040407C (zh) 1998-10-28
WO1993005957A1 (fr) 1993-04-01
SG43910A1 (en) 1997-11-14
BR9206502A (pt) 1995-10-17
MY107173A (en) 1995-09-30
FI941232A0 (fi) 1994-03-16
DE69216102T2 (de) 1997-07-03
JP3428985B2 (ja) 2003-07-22
NO316214B1 (no) 2003-12-29
NO940923L (no) 1994-03-15

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