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WO2002083382A1 - Debarking shaft for a debarking mechanism - Google Patents

Debarking shaft for a debarking mechanism Download PDF

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Publication number
WO2002083382A1
WO2002083382A1 PCT/FI2002/000121 FI0200121W WO02083382A1 WO 2002083382 A1 WO2002083382 A1 WO 2002083382A1 FI 0200121 W FI0200121 W FI 0200121W WO 02083382 A1 WO02083382 A1 WO 02083382A1
Authority
WO
WIPO (PCT)
Prior art keywords
debarking
shaft
teeth
trees
set forth
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/FI2002/000121
Other languages
French (fr)
Inventor
Jouni Havumäki
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 BRPI0208819-3A priority Critical patent/BR0208819B1/en
Priority to CA002438614A priority patent/CA2438614C/en
Priority to DE10296635T priority patent/DE10296635B4/en
Priority to AT0904402A priority patent/AT413964B/en
Publication of WO2002083382A1 publication Critical patent/WO2002083382A1/en
Priority to SE0302425A priority patent/SE526114C2/en
Priority to NO20034522A priority patent/NO322544B1/en
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
    • B27L1/10—Debarking or removing vestiges of branches from trees or logs; Machines therefor using rotatable tools
    • 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
    • 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

Definitions

  • the invention relates to a debarking shaft 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.
  • the teeth are generally mounted fixedly in certain positions.
  • the individual teeth can be replaceable, but even in that case the position of a tooth on the shaft remains always the same.
  • Another object of the invention is to enable an axial and peripheral displacement and locking or clamping of teeth to a desired position. According to the invention, these objects are accomplished by means of a debarking shaft of the invention, which is characterized in that the debarking shaft has its teeth designed as a number of annular tooth rims, each of said tooth rims comprising two or more releasably connected elements, having the outer periphery provided with the teeth and said elements being adapted to be fitted around a body member of the debarking shaft by way of press clamping.
  • the tooth rim elements are preferably provided with clamping means for forcing the elements toward each other against the body member of a debarking shaft.
  • the clamping means may comprise for example a headless screw, having one end provided with a left-handed thread and the other end with a right-handed thread, as well as a gripping section between the threads for turning the headless screw.
  • the debarking shaft is preferably constituted by a circular pipe.
  • adjacent tooth rims present on a common shaft can be readily locked or clamped on the shaft at an angular position arbitrarily different from each other in the shaft rotating direction, the teeth of adjacent tooth rims being capable of providing the shaft e.g. with helixes.
  • the relative distance in axial direction between tooth rims present on a shaft can be adjusted as desired.
  • the debarking shaft has its body member provided, preferably for each tooth rim, with a guide element, preferably a key and slot, for guiding the tooth rims to position.
  • the debarking shaft has its body member preferably designed in its cross- section as a polygon, whereby the tooth rims can be readily guided and clamped to various angular positions.
  • the teeth are preferably designed to be effective in both rotating directions of debarking shafts.
  • the teeth effective in opposite rotating directions can be different from or similar to each other.
  • the various rotating directions shall result in different barking capacities, e.g. for wintertime barking and summertime barking.
  • Barking capacity can also be influenced by making one or more sections of a tooth rim toothless. Hence, some of the tooth rims on a debarking shaft can be completely or partially toothless.
  • Fig. 1 shows a debarking shaft 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.
  • Fig. 4 shows a section along a line IV-IV in fig. 3.
  • Fig. 5 shows a section along a line V-V in fig. 3.
  • a debarking mechanism 1 shown 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 debarking shaft 3 has its teeth 4 designed as a number of annular tooth rims 20, as best shown in figs. 3 and 4.
  • each tooth rim 20 comprises two releasably connectable elements 21, 22, having the outer periphery thereof provided with the teeth 4.
  • the elements 21, 22 are adapted to be fitted around a body member 25 of the debarking shaft 3 by way of press clamping.
  • the tooth rim 20 has its elements 21, 22 preferably provided with clamping means, generally designated with reference numeral 23, for forcing the elements 21, 22 toward each other against the body member 25 of the debarking shaft 3.
  • the clamping means 23 comprises a headless screw, having one end provided with a left-handed thread and the other end with a right-handed thread, as well as a gripping section 24 between the threads for turning the headless screw.
  • the elements 21 and 22 are provided with mating threads, whereby the gripping section 24 can be turned for drawing the elements 21, 22 towards or away from each other.
  • the body member 25 of the debarking shaft 3 is circular in its cross-section, being preferably constituted by a circular pipe.
  • the body member 25 may be provided, for each tooth rim 20, with a guide element (not shown), preferably a key and slot, for guiding the tooth rims 20 to positions predetermined therefor.
  • the debarking shaft 3 may also have its body member 25 designed in its cross-section as a polygon, whereby the tooth rims can be readily guided and clamped to various angular positions relative to the body member 25.
  • the teeth 4 can be designed to work in both rotating directions of the debarking shafts 3.
  • the effective teeth 4 can be different from each other in different rotating directions,as shown in the example of fig. 4, or identical to each other.
  • the choice of various tooth shapes can be used to have an impact on attainable barking capacity. Barking can be similarly influenced by setting the teeth 4 of the adjacent tooth rims 20 at angular positions different from each other.
  • One or more of the tooth rims 20 can also be toothless (not shown).
  • 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 end panels 10 have a top edge thereof provided with open-topped grooves 12 for the shaft stubs 8 of the debarking shafts 3, whereby, if necessary, the debarking shafts 3 can be readily lifted out by overhead route.

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)
  • Connection Of Plates (AREA)
  • Forging (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Automatic Assembly (AREA)

Abstract

The invention relates to a debarking shaft (3) for a debarking mechanism (1), said debarking mechanism being 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, said debarking mechanism comprising a number of rotatable debarking shafts (3) extending parallel to the advancing direction of the trees (2) to be fed therethrough and 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 lengthwise direction of the trees and at the same to convey the trees transversely relative to said shafts (3), and said shafts (3), together with the teeth (4) thereof, being adapted to constitute at least a part of a support surface, upon which the presently processed trees (2) travel through the debarking mechanism (1). The debarking shaft (3) has its teeth (4) designed as a number of annular tooth rims (20), each of said tooth rims comprising two or more releasably connected elements (21, 22), having the outer periphery provided with the teeth (4) and said elements being adapted to be fitted around a body member (25) of the debarking shaft (3) by way of press clamping.

Description

Debarking shaft for a debarking mechanism
The invention relates to a debarking shaft 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.
The above type of debarking mechanism is prior known for example from US patents 4,685,498 and 5,394,912.
In the above type of debarking mechanism, the teeth are generally mounted fixedly in certain positions. In one application, the individual teeth can be replaceable, but even in that case the position of a tooth on the shaft remains always the same.
It is an object of the invention to provide a debarking shaft for a debarking mechanism, wherein the teeth of a toothed debarking shaft are readily removable and replaceable, as well as reversible regarding the rotating direction thereof.
Another object of the invention is to enable an axial and peripheral displacement and locking or clamping of teeth to a desired position. According to the invention, these objects are accomplished by means of a debarking shaft of the invention, which is characterized in that the debarking shaft has its teeth designed as a number of annular tooth rims, each of said tooth rims comprising two or more releasably connected elements, having the outer periphery provided with the teeth and said elements being adapted to be fitted around a body member of the debarking shaft by way of press clamping.
The tooth rim elements are preferably provided with clamping means for forcing the elements toward each other against the body member of a debarking shaft. The clamping means may comprise for example a headless screw, having one end provided with a left-handed thread and the other end with a right-handed thread, as well as a gripping section between the threads for turning the headless screw.
The debarking shaft is preferably constituted by a circular pipe. Thus, adjacent tooth rims present on a common shaft can be readily locked or clamped on the shaft at an angular position arbitrarily different from each other in the shaft rotating direction, the teeth of adjacent tooth rims being capable of providing the shaft e.g. with helixes. The same way, the relative distance in axial direction between tooth rims present on a shaft can be adjusted as desired.
The debarking shaft has its body member provided, preferably for each tooth rim, with a guide element, preferably a key and slot, for guiding the tooth rims to position.
The debarking shaft has its body member preferably designed in its cross- section as a polygon, whereby the tooth rims can be readily guided and clamped to various angular positions. The teeth are preferably designed to be effective in both rotating directions of debarking shafts. The teeth effective in opposite rotating directions can be different from or similar to each other. When using different types of teeth in opposite rotating directions, the various rotating directions shall result in different barking capacities, e.g. for wintertime barking and summertime barking. It is also possible to use sharp teeth for the decortication of initially hard-to-bark or frozen trees, while worn teeth can be used for the treatment of easy-to-bark trees. The replacement is effected simply by dismounting a tooth rim and by remounting the same after turning it around.
Barking capacity can also be influenced by making one or more sections of a tooth rim toothless. Hence, some of the tooth rims on a debarking shaft can be completely or partially toothless.
The invention will now be described in more detail with reference to the accompanying drawings, in which:
Fig. 1 shows a debarking shaft 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.
Fig. 4 shows a section along a line IV-IV in fig. 3.
Fig. 5 shows a section along a line V-V in fig. 3.
A debarking mechanism 1 shown 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. In the illustrated example, 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. Other than that, 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 debarking shaft 3 has its teeth 4 designed as a number of annular tooth rims 20, as best shown in figs. 3 and 4. In the example of fig. 4, each tooth rim 20 comprises two releasably connectable elements 21, 22, having the outer periphery thereof provided with the teeth 4. The elements 21, 22 are adapted to be fitted around a body member 25 of the debarking shaft 3 by way of press clamping.
The tooth rim 20 has its elements 21, 22 preferably provided with clamping means, generally designated with reference numeral 23, for forcing the elements 21, 22 toward each other against the body member 25 of the debarking shaft 3.
In the example of fig. 4, the clamping means 23 comprises a headless screw, having one end provided with a left-handed thread and the other end with a right-handed thread, as well as a gripping section 24 between the threads for turning the headless screw. The elements 21 and 22 are provided with mating threads, whereby the gripping section 24 can be turned for drawing the elements 21, 22 towards or away from each other.
The body member 25 of the debarking shaft 3 is circular in its cross-section, being preferably constituted by a circular pipe. The body member 25 may be provided, for each tooth rim 20, with a guide element (not shown), preferably a key and slot, for guiding the tooth rims 20 to positions predetermined therefor.
The debarking shaft 3 may also have its body member 25 designed in its cross-section as a polygon, whereby the tooth rims can be readily guided and clamped to various angular positions relative to the body member 25.
According to the example of fig. 4, the teeth 4 can be designed to work in both rotating directions of the debarking shafts 3. The effective teeth 4 can be different from each other in different rotating directions,as shown in the example of fig. 4, or identical to each other. The choice of various tooth shapes can be used to have an impact on attainable barking capacity. Barking can be similarly influenced by setting the teeth 4 of the adjacent tooth rims 20 at angular positions different from each other. One or more of the tooth rims 20 can also be toothless (not shown).
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 end panels 10 have a top edge thereof provided with open-topped grooves 12 for the shaft stubs 8 of the debarking shafts 3, whereby, if necessary, the debarking shafts 3 can be readily lifted out by overhead route.

Claims

Claims
1. A debarking shaft (3) for a debarking mechanism (1), said debarking mechanism being 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, said debarking mechanism comprising a number of rotatable debarking shafts (3) extending parallel to the advancing direction of the trees (2) to be fed therethrough and 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 lengthwise direction of the trees and at the same to convey the trees transversely relative to said shafts (3), and said shafts (3), together with the teeth (4) thereof, being adapted to constitute at least a part of a support surface, upon which the presently processed trees (2) travel through the debarking mechanism (1), characterized in that the debarking shaft (3) has its teeth (4) designed as a number of annular tooth rims (20), each of said tooth rims comprising two or more releasably connected elements (21, 22), having the outer periphery provided with the teeth (4) and said elements being adapted to be fitted around a body member (25) of the debarking shaft (3) by way of press clamping.
2. A shaft as set forth in claim 1, characterized in that the elements (21, 22) of the tooth rim (20) are provided with clamping means (23) for forcing the elements (21, 22) toward each other against the body member (25) of the debarking shaft (3).
3. A shaft as set forth in claim 2, characterized in that the clamping means (23) comprises a headless screw, having one end provided with a left- handed thread and the other end with a right-handed thread, as well as a gripping section (24) between the threads for turning the headless screw.
4. A shaft as set forth in claim 1, characterized in that the debarking shaft (3) has its body member (25) constituted by a circular pipe.
5. A shaft as set forth in claim 1, characterized in that the debarking shaft (3) has its body member (25) provided, for each tooth rim (20), with a guide element, preferably a key and slot, for guiding the tooth rims to position.
6. A shaft as set forth in claim 1, characterized in that the debarking shaft (3) has its body member (25) designed in its cross-section as a polygon.
7. A shaft as set forth in claim 1, characterized in that the teeth (4) are designed to be effective in both rotating directions of the debarking shafts (3).
8. A shaft as set forth in claim 1, characterized in that the teeth (4) effective in opposite rotating directions of the debarking shaft (3) are different from each other.
9. A shaft as set forth in claim 1, characterized in that the teeth (4) effective in opposite rotating directions of the debarking shaft (3) are identical to each other.
10. A shaft as set forth in claim 1, characterized in that the tooth rim (20) has one or more sections which are toothless.
PCT/FI2002/000121 2001-04-11 2002-02-15 Debarking shaft for a debarking mechanism Ceased WO2002083382A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BRPI0208819-3A BR0208819B1 (en) 2001-04-11 2002-02-15 debarking shaft for a debarking mechanism.
CA002438614A CA2438614C (en) 2001-04-11 2002-02-15 Debarking shaft for a debarking mechanism
DE10296635T DE10296635B4 (en) 2001-04-11 2002-02-15 Debarking shaft for a debarking machine
AT0904402A AT413964B (en) 2001-04-11 2002-02-15 SEPARATION SHAFT FOR A SEPARATION MECHANISM
SE0302425A SE526114C2 (en) 2001-04-11 2003-09-11 Debarking shaft for a debarking mechanism
NO20034522A NO322544B1 (en) 2001-04-11 2003-10-09 debarking shaft

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20010756 2001-04-11
FI20010756A FI112181B (en) 2001-04-11 2001-04-11 Barking shaft for barking device

Publications (1)

Publication Number Publication Date
WO2002083382A1 true WO2002083382A1 (en) 2002-10-24

Family

ID=8560968

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2002/000121 Ceased WO2002083382A1 (en) 2001-04-11 2002-02-15 Debarking shaft for a debarking mechanism

Country Status (11)

Country Link
CN (1) CN1297378C (en)
AT (1) AT413964B (en)
BR (1) BR0208819B1 (en)
CA (1) CA2438614C (en)
DE (1) DE10296635B4 (en)
ES (1) ES2242519B1 (en)
FI (1) FI112181B (en)
NO (1) NO322544B1 (en)
RU (1) RU2253565C2 (en)
SE (1) SE526114C2 (en)
WO (1) WO2002083382A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2292363A1 (en) * 2004-04-20 2008-03-01 Andritz Oy DISCORTEZED MECHANISM.
ES2294963A1 (en) * 2004-04-20 2008-04-01 Andritz Oy Debarking mechanism
WO2009129629A1 (en) * 2008-04-24 2009-10-29 Realsearch Inc. Flexible debarking abrader

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
DE102009021802A1 (en) 2009-05-18 2010-11-25 Pallmann Maschinenfabrik Gmbh & Co Kg Tool for use with tool unit for debarking of tree trunks, has support base for mounting tool on rotors of debarker, where toolbar is provided, which is in direct contact with tree trunks
DE202009016936U1 (en) 2009-12-15 2010-04-15 Rudnick & Enners Maschinen- Und Anlagenbau Gmbh Debarking shaft for a debarking process with a releasable attachment of the debarking tools
CN105328753A (en) * 2014-08-13 2016-02-17 江苏保龙机电制造有限公司 Four-roller peeling machine
CN108481496B (en) * 2018-06-12 2023-09-26 安徽安真木业有限公司 A crooked trees device of skinning for density board production
CN108527581A (en) * 2018-06-12 2018-09-14 安徽安真木业有限公司 A kind of trees apparatus for peeling off for density board production
CN108481497A (en) * 2018-06-12 2018-09-04 安徽安真木业有限公司 A kind of trees peeling serrated knife for density board production
CN108527582A (en) * 2018-06-12 2018-09-14 安徽安真木业有限公司 A kind of wind pressure for density board production drives trees device for peeling
CN108582372B (en) * 2018-06-12 2023-11-07 安徽安真木业有限公司 Hydraulic drive tree peeling device for density board production

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US3228440A (en) * 1964-01-22 1966-01-11 Ingersoll Rand Canada Log debarking apparatus
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

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Publication number Priority date Publication date Assignee Title
CA1225309A (en) * 1984-02-08 1987-08-11 Junichi Nakajima Drum barker
US5673865A (en) * 1996-08-29 1997-10-07 Stroulger; Neal P. Waste debarker
FI101524B1 (en) * 1996-12-10 1998-07-15 Andritz Patentverwaltung Device for removing bark from a wood and bark comprising wood stream

Patent Citations (4)

* 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
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2292363A1 (en) * 2004-04-20 2008-03-01 Andritz Oy DISCORTEZED MECHANISM.
ES2294963A1 (en) * 2004-04-20 2008-04-01 Andritz Oy Debarking mechanism
CN100423917C (en) * 2004-04-20 2008-10-08 安德里兹私人有限公司 Bark peeling mechanism
ES2292363B2 (en) * 2004-04-20 2008-10-16 Andritz Oy DISCORTEZED MECHANISM.
ES2294963B2 (en) * 2004-04-20 2008-10-16 Andritz Oy DISCORTEZED MECHANISM.
WO2009129629A1 (en) * 2008-04-24 2009-10-29 Realsearch Inc. Flexible debarking abrader

Also Published As

Publication number Publication date
RU2253565C2 (en) 2005-06-10
BR0208819A (en) 2004-03-09
AT413964B (en) 2006-07-15
ES2242519A1 (en) 2005-11-01
DE10296635B4 (en) 2009-02-19
SE0302425L (en) 2003-09-11
NO20034522L (en) 2003-10-09
FI112181B (en) 2003-11-14
SE526114C2 (en) 2005-07-05
DE10296635T5 (en) 2004-04-22
BR0208819B1 (en) 2011-06-28
ES2242519B1 (en) 2006-10-16
CN1297378C (en) 2007-01-31
FI20010756L (en) 2002-10-12
SE0302425D0 (en) 2003-09-11
CA2438614A1 (en) 2002-10-24
FI20010756A0 (en) 2001-04-11
NO322544B1 (en) 2006-10-23
NO20034522D0 (en) 2003-10-09
ATA90442002A (en) 2005-11-15
CN1501854A (en) 2004-06-02
CA2438614C (en) 2006-10-24

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