US3833162A - Wood feeding device for bark stripping machine - Google Patents

Wood feeding device for bark stripping machine Download PDF

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Publication number
US3833162A
US3833162A US00383146A US38314673A US3833162A US 3833162 A US3833162 A US 3833162A US 00383146 A US00383146 A US 00383146A US 38314673 A US38314673 A US 38314673A US 3833162 A US3833162 A US 3833162A
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United States
Prior art keywords
wood
feed rollers
gears
fixed
stripping machine
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Expired - Lifetime
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US00383146A
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English (en)
Inventor
J Sato
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ENO IND CO Ltd
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ENO IND CO Ltd
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Publication date
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Publication of US3833162A publication Critical patent/US3833162A/en
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    • 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
    • B27L1/04—Debarking or removing vestiges of branches from trees or logs; Machines therefor by rubbing the trunks in rotating drums
    • B27L1/045—Feeding devices therefor

Definitions

  • a device for feeding wood to a bark stripping machine while centering the wood longitudinally with respect to the bark stripping machine in which a pair of roller assembly units each comprising a pair of parallel arms rotatably supporting a feed roller between one ends and respectivelyhaving gears fixed to the other ends thereof are put together on one side of fixed shafts, with said feed rollers and gears of the respective units in engagement with each other, and pivotably mounted on said fixed shafts respectively with said fixed shaft extending through the centers of said gears, and another pair of similar roller assembly units are similarly put together on the other side of said fixed shafts and pivotably mounted on said fixed shaft, and further plate springs are provided to urge said engaging feed rollers each toward the center of
  • This invention relates to a device for feeding wood to a bark stripping machine of the type in which the bark of a wood is stripped by stripping knives provided on the inner peripheral wall of a rotating rotary drum during passage of the wood through said rotary drum.
  • a bark stripping machine of the type having knives provided on the inner wall of a rotary drum is so constructed that the cutting portions of the knives are urged toward the center of the rotary drum during rotation of said rotary drum and a wood fed toward the center of the rotary drum is stripped by the knives during passage through said rotary drum.
  • This type of machine requires the wood to be fed always toward the center of the rotary drum during operation and therefore, calls for a wood feeding device specialized for use with said particular machine.
  • the present invention consists in a device for feeding wood toward the center of such type of bark stripping machine having knives on the inner wall of a rotary drum, and an object thereof is to provide a device which is capable of feeding a wood while centering the wood longitudinally with respect to the bark stripping machine even when the diameter of the wood varies.
  • Another object of the invention is to provide a device which is capable of feeding a wood while centering the wood longitudinally with respect to the bark stripping machine even when the wood is crooked in shape.
  • Still another object of the invention is to provide a device which serves as a feeding device when provided on the front side of the bark stripping machine and as a drawing device when provided on the back side of the machine, and enables the bark stripping efficiency of the machine to be enhanced when provided on each side of the machine.
  • FIG. 1 is a front elevational view of the entire wood feeding device according to the present invention.
  • FIG. 2 is a sectional view taken along the line II-II of FIG. 1;
  • FIG. 3 is a side elevational view of the entire device
  • FIG. 4 is a side elevational view of the feed roller
  • FIG. 5 is a perspective view illustrating the engagement of the interlocking gears.
  • the wood feeding device of the invention can be used as a feeding device when provided on the front side of the bark stripping machine and as a stripped wood drawing device when provided on the back side of the machine.
  • the device will be described herein with reference to the drawings as being provided on the feeding side of the machine for the sake of description.
  • reference numerals l, 2 designate feed rollers having their shafts 3, 4 respectively journaled in bearings 5, 6 fixed at one ends of arms 7, 8.
  • the arms 7, 8 respectively have interlocking gears 9, l0
  • each feed roller is fixed to the other ends thereof.
  • Such arms are provided on both sides of each feed roller to rotatably support said feed roller. Since the range of angular displacement of the interlocking gears is small, gears of a type having gear teeth only at a limited portion of the peripheral edge thereof, as shown, may be used for these interlocking gears.
  • Each of the feed rollers 1, 2, as seen in FIG. 4, is reduced in diameter at the central portion 1a as viewed in a direction perpendicular to the axis of the roller. Further, in order to facilitate the feeding of wood, each roller is made up of plate members 11, 11 arranged obliquely and each having a knurled outer edge 11a.
  • a pair of the roller assembly units are put together vertically symmetrically in such a manner that the feed rollers l, 2 of the respective units are in contact with each other and the interlocking gears 9, 10 thereof are in meshing engagement with each other, as best shown in FIG. 5, and are pivotably mounted on shafts 12, 13, fixed to a machine frame 14, respectively with said shafts extending through the centers of said gears 9, 10.
  • the feed rollers 1, 2 can make a pivotal movement about the shafts l2, 13 respectively. Since the interlocking, gears 9, 10 are not fixed to the shafts 12, 13, they are freely rotatable about said shafts.
  • roller assembly units pivotably mounted on the machine frame 14 in the manner described is shown at the left half portions of FIGS. 1 and 5.
  • Another pair of similar roller assembly units are similarly put together and pivotably mounted on the machine framev on the other side of the shafts 12, 13. Namely, roller assembly units respectively comprising feed rollers 15, 16 of the.
  • rollers l, 2 same construction as the aforesaid rollers l, 2, two parallel arms 21, 22 rotatably supporting shafts 17, 18 of said rollers l5, 16 through bearings 19, 20 fixed at one ends of said arms and gears 23, 24 fixed to the other ends of said arms, are put together with said rollers l5, 16 in contact with each other and said gears 23, 24 in meshing engagement with each other, and pivotably mounted on the shafts 12, 13 respectively, in the same manner as described above.
  • the gears 23, 24 are freely rotatable 'on the shafts 12, 13 respectively and the feed rollers 15, 16 are arranged in symmetrical relation with the feed rollers 1, 2 with respect to the shafts 12, 13.
  • the gears 9, 10 of the arms 7, Sand the gears 23, 24 of thearms 21, 22 are mounted on the shafts l2, 13 at different locations, and the gears 9, 23 are mounted on the shaft 12 and the gears 10, 24 on the shaft 13.
  • the relative position of these gears as mounted on the shafts will be understood from FIG. 5.
  • the shafts 3, 4, 17, 18 of the feed rollers l, 2, 15, 16 are extended at one ends outwardly through the respective bearings and have sprockets 25, 26, 27, 28 mounted on the outwardly projecting ends thereof respectively.
  • the shafts 12, 13 respectively have sprockets 29, 30 rotatably mounted at one ends thereof, and interrneshing gears 35, 36 are fixedly mounted on a common boss of the sprockets 29, 30 respectively.
  • a motor 37 for operating this device is mounted on a mounting block 14a fixed to the machine frame 14.
  • the drive shaft of the motor 37 has a sprocket mounted thereon and a chain 39 is engaged around said sprocket and a sprocket 38 which is mounted on the common boss of .the sprockets 30 and gear 36, rotatably mounted on the shaft 13, for rotation with said sprockets and gear.
  • plate springs 40, 41 are provided, respectively urging the arms 7, 21 and 8, 22, extending from the shafts 12, 13 in opposite directions to each other, toward each other.
  • These plate springs 40, 41 are connected at their centers to the ma chine frame 14 by means of fittings 42, 43 respectively.
  • the bark stripping machine is provided successive to the right hand feed rollers 15, 16, and the device of the invention is further provided on the back side of said bark stripping machine adjacent thereto.
  • the feeding device of the invention operates in the following manner: Namely, when the motor 37 is set in motion, the drive of the motor is transmitted through the chain 39, the sprocket 38, the sprockets 30, chains 32, 34 to the feed rollers 2, 16 to drive the same, and through the chain 39, the sprocket 38, the gears 36, 35, the sprockets 29, chains 31, 33 to the feed rollers 1, to drive the same.
  • a wood supplied to the junction of the engaging feed rollers l, 2, therefore, is carried forward by said feed rollers while forcing the feed rollers outwardly against the biasing forces of the springs 40, 41.
  • the two upper and lower feed rollers 1, 2 are interconnected through the intermeshing interlocking gears 9, 10 fixed to the arms 7, 8, so that when the feed roller 1 is displaced upwardly, the feed roller 2 is also displaced downwardly by the same amount.
  • the feed roller 1 is displaced upwardly, the feed roller 2 is also displaced downwardly by the same amount.
  • the wood having once been clamped between the feed rollers l, 2 is forced toward the right side as viewed in FIG. 1, as said feed rollers are rotating.
  • the plate springs 40, 41 prevent the lower feed rollers 2, 16 from sagging under the weight of the wood, during passage of the wood through the subject feeding device.
  • the plate springs 40, 41 are arranged respectively to act on those portions of the arms 7, 21 and 8, 22 where the feed rollers are supported, so as to hold the lower arms 8,22 against pivotal movement about the shaft 13.
  • the feeding device of the invention is capable of transferring a wood in the longitudinal direction while maintaining the center of the wood at a fixed position even when the diameter of the wood varies, and therefore, is highly adapted for use with a bark stripping machine of the type having knives along the inner wall of a rotary drum, for feeding wood toward the center of said rotary drum.
  • a device for feeding wood to a bark stripping machine while maintaining the longitudinal center of the wood to be fed in a fixed position comprising a pair of roller assembly units, each having a pair of parallel arms rotatably supporting a feed roller between one ends and respectively having gears fixed to the other ends thereof; said roller assembly units being put together on one side of fixed shafts with said feed rollers in contact with each other and said gears in meshing engagement with each other, and being pivotably mounted on said fixed shafts with the latter extending through the centers of said gears; another pair of similar roller assembly units similarly put together on the other side of said fixed shafts and pivotably mounted on said fixed shafts respectively; plate springs urging the cooperating ones of said feed rollers into engagement with each other; and means for driving said feed rollers to transfer the wood longitudinally from one to the other side of the device.
  • each of said feed rollers is reduced in diameter at the central portion thereof as viewed in a direction prependicular to the axis of said roller.
  • each of said feed rollers is reduced in diameter at the central portion thereof as viewed in a direction perpendicular to the axis of said roller and has a knurled surface.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
US00383146A 1972-10-31 1973-07-24 Wood feeding device for bark stripping machine Expired - Lifetime US3833162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47108443A JPS5029979B2 (enrdf_load_stackoverflow) 1972-10-31 1972-10-31

Publications (1)

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US3833162A true US3833162A (en) 1974-09-03

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ID=14484891

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Application Number Title Priority Date Filing Date
US00383146A Expired - Lifetime US3833162A (en) 1972-10-31 1973-07-24 Wood feeding device for bark stripping machine

Country Status (3)

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US (1) US3833162A (enrdf_load_stackoverflow)
JP (1) JPS5029979B2 (enrdf_load_stackoverflow)
DE (1) DE2336650A1 (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993234A (en) * 1976-01-21 1976-11-23 Gaston County Dyeing Machine Company Reel for feeding cloth in rope form
US4033496A (en) * 1975-01-13 1977-07-05 The Post Office Apparatus for hauling cables or other elongate bodies
US4441536A (en) * 1980-12-22 1984-04-10 Kauko Rautio Machine for hewing square timbers
US4510981A (en) * 1981-12-21 1985-04-16 Kockums Industri Ab Self-centering feeding device
US5255836A (en) * 1988-07-27 1993-10-26 The Perkin-Elmer Corporation Flame spray gun with wire feed control
US6168062B1 (en) * 1998-10-09 2001-01-02 Enderby Manufacturing Corp. Self-actuating slack puller
US6253813B1 (en) * 2000-09-07 2001-07-03 Nicholson Manufacturing Company Feed rolls with replaceable flute elements
US20050230509A1 (en) * 2004-04-20 2005-10-20 Diamond Z Manufacturing Angled toothed feed drum for hammermill
US20080178965A1 (en) * 2007-01-26 2008-07-31 Kube Burk R Replaceable flute inserts for a roller assembly of a debarker apparatus
CN110614690A (zh) * 2019-10-24 2019-12-27 马鞍山欧科重工机械制造有限公司 一种旋转剥削式粉碎机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103805A (en) * 1980-12-21 1982-06-28 Fuji Industries Co Ltd Feeder for wood of ring barker
SE426366B (sv) * 1981-05-27 1983-01-17 Waco Jonsereds Ab Anordning vid matarverk for klyvsagar
JPS6174397U (enrdf_load_stackoverflow) * 1984-10-24 1986-05-20
JPS63263043A (ja) * 1987-04-20 1988-10-31 Ulvac Corp 農産物輸送用容器
DE3923196A1 (de) * 1989-07-13 1991-01-17 Michael Geisenhofer Entrindungsmaschine
DE202010008223U1 (de) 2010-08-04 2010-12-09 Wiedemann, Josef Holzentrindungsanlage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564904A (en) * 1948-04-16 1951-08-21 Cascades Plywood Corp Work hold-down roll mechanism for work feed apparatus
US2983291A (en) * 1957-01-22 1961-05-09 Ingersoll Rand Canada Feed conveyor for a log debarker
US2994352A (en) * 1959-09-15 1961-08-01 Johnnic R Johnson Apparatus for barking slabs and edgings
US3045728A (en) * 1959-04-07 1962-07-24 Ibis Entpr Ltd Conveying mechanism
US3501077A (en) * 1968-02-26 1970-03-17 Beloit Corp Log feeding apparatus
US3724518A (en) * 1970-03-13 1973-04-03 Int Paper Canada Tree feed roll assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564904A (en) * 1948-04-16 1951-08-21 Cascades Plywood Corp Work hold-down roll mechanism for work feed apparatus
US2983291A (en) * 1957-01-22 1961-05-09 Ingersoll Rand Canada Feed conveyor for a log debarker
US3045728A (en) * 1959-04-07 1962-07-24 Ibis Entpr Ltd Conveying mechanism
US2994352A (en) * 1959-09-15 1961-08-01 Johnnic R Johnson Apparatus for barking slabs and edgings
US3501077A (en) * 1968-02-26 1970-03-17 Beloit Corp Log feeding apparatus
US3724518A (en) * 1970-03-13 1973-04-03 Int Paper Canada Tree feed roll assembly

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033496A (en) * 1975-01-13 1977-07-05 The Post Office Apparatus for hauling cables or other elongate bodies
US3993234A (en) * 1976-01-21 1976-11-23 Gaston County Dyeing Machine Company Reel for feeding cloth in rope form
US4441536A (en) * 1980-12-22 1984-04-10 Kauko Rautio Machine for hewing square timbers
US4510981A (en) * 1981-12-21 1985-04-16 Kockums Industri Ab Self-centering feeding device
US5255836A (en) * 1988-07-27 1993-10-26 The Perkin-Elmer Corporation Flame spray gun with wire feed control
US6168062B1 (en) * 1998-10-09 2001-01-02 Enderby Manufacturing Corp. Self-actuating slack puller
US6253813B1 (en) * 2000-09-07 2001-07-03 Nicholson Manufacturing Company Feed rolls with replaceable flute elements
EP1186388A1 (en) * 2000-09-07 2002-03-13 Nicholson Manufacturing Company Feed rolls with replaceable flute elements
AU748897B2 (en) * 2000-09-07 2002-06-13 Nicholson Manufacturing Company Feed rolls with replaceable flute elements
US6422277B1 (en) 2000-09-07 2002-07-23 Nicholson Manufacturing Company Feed rolls with replaceable flute elements
US20050230509A1 (en) * 2004-04-20 2005-10-20 Diamond Z Manufacturing Angled toothed feed drum for hammermill
US20080178965A1 (en) * 2007-01-26 2008-07-31 Kube Burk R Replaceable flute inserts for a roller assembly of a debarker apparatus
US7882869B2 (en) 2007-01-26 2011-02-08 Nicholson Manufacturing Ltd. Replaceable flute inserts for a roller assembly of a debarker apparatus
CN110614690A (zh) * 2019-10-24 2019-12-27 马鞍山欧科重工机械制造有限公司 一种旋转剥削式粉碎机

Also Published As

Publication number Publication date
JPS5029979B2 (enrdf_load_stackoverflow) 1975-09-27
DE2336650A1 (de) 1974-05-09
JPS4966432A (enrdf_load_stackoverflow) 1974-06-27

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