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WO2002083383A9 - Systeme d'arbre d'ecorçage destine a un mecanisme d'ecorçage - Google Patents

Systeme d'arbre d'ecorçage destine a un mecanisme d'ecorçage

Info

Publication number
WO2002083383A9
WO2002083383A9 PCT/FI2002/000122 FI0200122W WO02083383A9 WO 2002083383 A9 WO2002083383 A9 WO 2002083383A9 FI 0200122 W FI0200122 W FI 0200122W WO 02083383 A9 WO02083383 A9 WO 02083383A9
Authority
WO
WIPO (PCT)
Prior art keywords
debarking
shaft
trees
shafts
teeth
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.)
Ceased
Application number
PCT/FI2002/000122
Other languages
English (en)
Other versions
WO2002083383A1 (fr
Inventor
Jouni Havumaeki
Pekka Kokko
Bruce Kirkpatrick
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.)
Andritz Oy
Original Assignee
Andritz Oy
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 Andritz Oy filed Critical Andritz Oy
Priority to CA002438660A priority Critical patent/CA2438660C/fr
Priority to BRPI0208820-7A priority patent/BR0208820B1/pt
Priority to DE10296634T priority patent/DE10296634B4/de
Priority to AT0904302A priority patent/AT414109B/de
Publication of WO2002083383A1 publication Critical patent/WO2002083383A1/fr
Publication of WO2002083383A9 publication Critical patent/WO2002083383A9/fr
Priority to SE0302426A priority patent/SE527589C2/sv
Priority to NO20034521A priority patent/NO20034521D0/no
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
    • B27L1/02—Debarking or removing vestiges of branches from trees or logs; Machines therefor by rubbing the trunks against each other; Equipment for wet practice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
    • B27L1/10—Debarking or removing vestiges of branches from trees or logs; Machines therefor using rotatable tools

Definitions

  • the invention relates to a debarking shaft arrangement for a debarking mechanism, said debarking mechanism being intended for the decortication or pretreatment of trees for separately performed final barking and for the expulsion of at least some of the removed barks from a wood flow passing through the debarking mechanism, said debarking mechanism comprising a number of rotatable debarking shafts extending parallel to the advancing direction of trees to be fed therethrough and provided with a number of teeth extending beyond the circumferential surface of the shaft and adapted to strip bark off the presently processed trees transversely to the lengthwise direction of the trees and at the same to convey the trees transversely relative to said shafts, and said shafts, together with the teeth thereof, being adapted to constitute at least a part of a support surface, upon which the presently processed trees travel through the debarking mechanism.
  • a problem with the above type of prior known debarking mechanisms is the inconvenience and high cost of repairing worn or damaged teeth.
  • the teeth must be repaired one at a time while the debarking shaft remains stationary in the debarking mechanism.
  • the arrangement according to the invention in a debarking shaft system for a debarking mechanism is such that the teeth are designed to be effective in both rotating directions of said rotatable debarking shafts, and that the debarking shafts are designed to be pivotable.
  • This system enables a speedy deployment of new teeth just by pivoting and securing a shaft at 180° relative to the original position, whereby it is parallel to the original position but has an opposite rotating direction with respect to the original position.
  • the teeth working in the opposite rotating directions of a debarking shaft can be different from or similar to each other.
  • a different debarking capacity will be obtained in various rotating directions, e.g. for wintertime barking and summertime barking. It is also possible to use sharp teeth first for the decortication of hard-to-bark or frozen trees, and to use worn teeth for the treatment of easy-to-bark trees.
  • the arrangement is such that the debarking shaft is designed and dimensioned in such a way that a dislodged shaft, after being pivoted through 180°, is mountable in the same position or in a corresponding position.
  • This arrangement is relevant primarily when the debarking mechanism is provided with two types of shafts which are symmetrical in terms of the mounting and axial pitch thereof. Thus, every other position is always provided with an identical shaft.
  • the above expression "a corresponding position" should be understood on this basis.
  • the arrangement is such that the debarking shaft is designed and dimensioned in such a way that a dislodged shaft, after being pivoted through 180°, is mountable in the position of an adjacent shaft or in a corresponding position.
  • a corresponding position refers to those alternating positions for a debarking shaft in which the shafts lie co-directionally.
  • This arrangement is applicable when all debarking shafts in a debarking mechanism are identical to each other.
  • This arrangement offers the advantage that the debarking mechanism only requires a single type of spare shaft which is hence fit for all positions. In principle, such a shaft could be secured in the same position in each of its pivoted positions, but this would require e.g. different attachment points for different shaft pivoting directions.
  • the arrangement is such that the attachment of a debarking shaft to a debarking mechanism is implemented in such a way that, in the process of dislodging, the shaft is liftable from its position and, respectively, in the process of installation, settable into its position through a wood handling facility.
  • Fig. 1 shows debarking shafts for a debarking mechanism of the invention, in a schematic side view.
  • Fig. 2 shows a section along a line II-II in fig. 1.
  • Fig. 3 shows a section along a line III-III in fig. 2.
  • a debarking mechanism 1 depicted in the drawings is intended for the decortication or pretreatment of trees 2 for separately performed final barking and for the expulsion of at least some of the removed barks from a wood flow passing through the debarking mechanism.
  • the debarking mechanism 1 is provided with a number of rotatable debarking shafts 3 extending parallel to the advancing direction of the trees 2 to be fed therethrough.
  • the debarking shafts 3 have each end thereof provided with sprockets 6, whereby, at least at one end of the debarking mechanism 1, the sprockets 6 are by way of a sprocket chain (not shown) to each other and to the gear of an electric motor, not shown.
  • the debarking shafts 3 are provided with a number of teeth 4 extending beyond the circumferential surface of the shaft 3 and adapted to strip bark off the presently processed trees 2 transversely to the longitudinal direction of the trees and at same time to convey the trees transversely relative to the debarking shafts 3.
  • the debarking shafts 3, together with the teeth 4 thereof, constitute a part of a support surface for carrying the trees 2 through the debarking mechanism 1.
  • the illustrated example includes four debarking shafts 3 which are assembled relative to each other to define an inclined plane.
  • the support surfaces comprise solid surfaces which are designed for providing, together with the support surface constituted by the debarking shafts, an open-ended chute covering the debarking mechanism 1 from end to end.
  • the chute can be open-topped or covered.
  • the teeth 4 carried by the debarking shafts 3 are designed to be effective in both rotating directions of the debarking shafts 3. However, in the debarking mechanism 1, the debarking shafts 3 are all rotating always in the same direction as indicated by an arrow 7 (fig. 2). The teeth 4 effective in various directions can nevertheless be exploited when the debarking shafts 3 are designed to be pivotable.
  • all four debarking shafts 3 are designed to be identical to each other.
  • the teeth set at regular spaces along the circumference of the debarking shaft 3 are positioned asymmetrically in the lengthwise direction of the shaft 3, an intermeshing for the teeth 4 of the adjacent shafts 3 being accomplished by installing the adjacent shafts 3 in opposite directions, i.e. reversed by 180°.
  • the teeth 4 effective in opposite rotating directions of the debarking shaft 3 can be different from or similar to each other.
  • This arrangement enables a speedy deployment of new teeth just by pivoting and securing a shaft at 180° relative to the original position, whereby it is parallel to the original position but has an opposite rotating direction with respect to the original position.
  • the topmost shaft in fig. 1 in a reversed condition can be substituted either for the shaft second from top or for the lowermost shaft.
  • the debarking shafts 3 have each end thereof provided with smaller- diameter shaft stubs 8, on which are mounted bearings, along with bearing cups 9 therefor, as well as the sprockets 6.
  • the bearing cups 9 are adapted to be secured with screws 11 to end panels 10 present at the ends of the debarking mechanism 1 in line with the debarking shafts 3.
  • the debarking shaft 3 has its attachment to the debarking mechanism 1 implemented in such a way that, in the process of dislodging, the shaft 3 is liftable from its position and, respectively, in the process of installation, settable into its position through a wood treating space 5 present in the debarking mechanism 1.
  • this is implemented in such a way that the end panels 10 have a top edge thereof provided with open-topped grooves 12 for the shaft stubs 8 of the debarking shafts 3.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention concerne un système d'arbre d'écorçage destiné à un mécanisme d'écorçage (1) conçu pour la décortication ou le pré-traitement d'arbres (2) pour l'écorçage final réalisé séparément et pour l'expulsion d'au moins quelques unes des écorces d'un flux de bois passant dans le mécanisme d'écorçage. Ledit mécanisme d'écorçage comporte une pluralité d'arbres d'écorçage rotatifs (3) s'étendant parallèlement au sens d'avancement des arbres (2) devant être traités, ainsi qu'une pluralité de dents (4) s'étendant au-delà de la surface périphérique de l'arbre (3), conçues pour écorcer lesdits arbres (2) perpendiculairement au sens longitudinal des arbres, et convoyer les arbres perpendiculairement auxdits arbres (3). Lesdits arbres (3) et les dents (4) sont conçus pour constituer au moins une partie d'une surface support parcourue par les arbres traités (2) au travers du mécanisme d'écorçage (1). Les dents (4) sont efficaces dans les deux sens de rotation desdits arbres d'écorçage rotatifs (3), et lesdits arbres d'écorçage (3) peuvent pivoter.
PCT/FI2002/000122 2001-04-11 2002-02-15 Systeme d'arbre d'ecorçage destine a un mecanisme d'ecorçage Ceased WO2002083383A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002438660A CA2438660C (fr) 2001-04-11 2002-02-15 Systeme d'arbre d'ecorcage destine a un mecanisme d'ecorcage
BRPI0208820-7A BR0208820B1 (pt) 2001-04-11 2002-02-15 disposição de eixo de descascamento para um mecanismo de descascamento.
DE10296634T DE10296634B4 (de) 2001-04-11 2002-02-15 Entrindungswellenanordnung für eine Entrindungsmaschine
AT0904302A AT414109B (de) 2001-04-11 2002-02-15 Anordnung der entrindungswellen für einen entrindungsmechanismus
SE0302426A SE527589C2 (sv) 2001-04-11 2003-09-11 Avbarkningsaxelarrangemang för en avbarkningsmekanism
NO20034521A NO20034521D0 (no) 2001-04-11 2003-10-09 Avbarkingsanordning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20010755 2001-04-11
FI20010755A FI112182B (fi) 2001-04-11 2001-04-11 Kuorintalaitteen kuorinta-akselijärjestely

Publications (2)

Publication Number Publication Date
WO2002083383A1 WO2002083383A1 (fr) 2002-10-24
WO2002083383A9 true WO2002083383A9 (fr) 2003-04-10

Family

ID=8560967

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2002/000122 Ceased WO2002083383A1 (fr) 2001-04-11 2002-02-15 Systeme d'arbre d'ecorçage destine a un mecanisme d'ecorçage

Country Status (11)

Country Link
CN (1) CN1309542C (fr)
AT (1) AT414109B (fr)
BR (1) BR0208820B1 (fr)
CA (1) CA2438660C (fr)
DE (1) DE10296634B4 (fr)
ES (1) ES2247902B1 (fr)
FI (1) FI112182B (fr)
NO (1) NO20034521D0 (fr)
RU (1) RU2252136C2 (fr)
SE (1) SE527589C2 (fr)
WO (1) WO2002083383A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103144171A (zh) * 2013-03-17 2013-06-12 福建鑫华股份有限公司 构树皮剥取装置
CN103144172A (zh) * 2013-03-17 2013-06-12 福建鑫华股份有限公司 构树皮剥取的方法
CN104249404A (zh) * 2013-06-27 2014-12-31 江苏大唐机械有限公司 齿辊剥皮机梯形刀安装结构
US9914241B2 (en) * 2015-01-26 2018-03-13 Acrowood Corporation Batch-style bottom-discharge rotary debarker
CN108523152B (zh) * 2018-03-16 2019-12-10 瑞安市妥品会鞋业有限公司 一种竹笋剥皮方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228440A (en) * 1964-01-22 1966-01-11 Ingersoll Rand Canada Log debarking apparatus
CA1225309A (fr) * 1984-02-08 1987-08-11 Junichi Nakajima Ecorceuse a tambour
US5094281A (en) * 1991-01-25 1992-03-10 Barnhill Equipment Ltd. Debarking/delimbing apparatus
US5394912A (en) * 1993-08-04 1995-03-07 Real Search Inc. Wood fibre debris processor
US5630453A (en) * 1996-05-24 1997-05-20 Fuji Kogyo Co., Ltd. Debarking machine
US5673865A (en) * 1996-08-29 1997-10-07 Stroulger; Neal P. Waste debarker

Also Published As

Publication number Publication date
AT414109B (de) 2006-09-15
FI20010755L (fi) 2002-10-12
FI20010755A0 (fi) 2001-04-11
CA2438660C (fr) 2007-08-07
FI112182B (fi) 2003-11-14
ATA90432002A (de) 2005-12-15
ES2247902A1 (es) 2006-03-01
DE10296634T5 (de) 2004-04-22
NO20034521L (no) 2003-10-09
ES2247902B1 (es) 2007-01-01
BR0208820A (pt) 2004-03-09
WO2002083383A1 (fr) 2002-10-24
BR0208820B1 (pt) 2011-06-28
SE0302426D0 (sv) 2003-09-11
CN1500031A (zh) 2004-05-26
NO20034521D0 (no) 2003-10-09
CA2438660A1 (fr) 2002-10-24
SE0302426L (sv) 2003-09-11
RU2252136C2 (ru) 2005-05-20
SE527589C2 (sv) 2006-04-18
CN1309542C (zh) 2007-04-11
DE10296634B4 (de) 2009-02-12

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