US3581892A - Device for sorting pieces of timber, such as logs, on the timber receiving table - Google Patents

Device for sorting pieces of timber, such as logs, on the timber receiving table Download PDF

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Publication number
US3581892A
US3581892A US823328A US3581892DA US3581892A US 3581892 A US3581892 A US 3581892A US 823328 A US823328 A US 823328A US 3581892D A US3581892D A US 3581892DA US 3581892 A US3581892 A US 3581892A
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US
United States
Prior art keywords
timber
arms
carriage
receiving table
movable
Prior art date
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Expired - Lifetime
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US823328A
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English (en)
Inventor
Erkki Aro
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Individual
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Individual
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Publication of US3581892A publication Critical patent/US3581892A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/04—Sorting according to size
    • B07C5/12—Sorting according to size characterised by the application to particular articles, not otherwise provided for
    • B07C5/14—Sorting timber or logs, e.g. tree trunks, beams, planks or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/941—Item carrying bridge raisable to expose discharge opening

Definitions

  • the device consists of a carriage reciprocally movable in the aims rawmg direction of travel of the timber above the table and having [52] U.S.Cl 209/125, downwardly directed arms which can be extended into the 198/166 path of the timber for the purpose of grouping and shifting the [51] Int. Cl B07c 5/36 pieces of timber, and which can be moved out of the path of [50] Field of Search 209/125, the timber for the purpose of permitting free movement of the 122, 123; 198/166 timber.
  • the present invention concerns a timber separating and sorting device which is particularly suitable for use in a wood conversion plant.
  • the object of the invention is to provide a device for sorting timber on the timber receiving table, upon which the timber bundle is placed.
  • the table may be composed of two consecutive conveyors, the later of the two conveyors operating at higher speed.
  • the table may also be composed of more than two consecutive conveyors, in which instance the speed continuously increases in transition from one conveyor to the next. In this manner it is achieved thatthe timber bundle is spread out, so that at the ultimate end of the table the pieces of timber are separate from each other.
  • the receiving table may also be without conveyors.
  • a sorting device which consists of a crane, which grabs one piece of timber at a time and carries it, depending on the kind of timber, onto its particular conveyor.
  • a device of this type which handles the pieces of timber one by one, has only low capacity.
  • the aim of the present invention is to afford a device with considerably superior sorting capacity.
  • the invention is based on the statistical fact that pieces of timber of different kinds do not alternate at the final end of the receiving table but that there may rather be several pieces of the same kind of timber one after the other at the final end of the table.
  • the invention is characterized in that the device consists ofa carriage movable reciprocally in the timber transporting direction above the table and which has downwardly directed arms, which can be made to extend into the path of the timber for the purpose of grouping and moving the pieces of timber, and which can be retracted from the path of the timber so that the timber is free to move on, the table.
  • the operator of the device can thus group the pieces of timber on the table in such a manner that consecutively occurring pieces of the same kind of timber always constitute their own particular group. It is then easy to conduct these groups by means of various kinds of equipment to their particular conveyors.
  • the arms may be placed on the carriage in various ways. Most suitably, they are arranged in one row which is transverse to the direction in which the timber moves.
  • the arms may push downward from the carriage in their longitudinal direction. But most appropriately the arms are turnable in a vertical plane parallel to the direction of travel of the timberf Incompletely pruned trees, in particular, may be tangled and may lie across each other even at the final end of the table.
  • the different arms are movable independent to each other. It is thus possible, by using only one or two arms, to seize the end of one piece of timber and to drag or push it by moving the carriage in one direction or the other. In order that the arms might be able both to drag and push, it is appropriate to give them an angular shape.
  • the carriage may be used at the initial end of the table to tear the timber bundle apart. If, in addition to its primary task, the carriage hardly has time to perform such timber detaching work, another similar carriage may be placed above the initial end of the table. The carriage is thus also suited as such to the purpose of dispersing the timber bundle.
  • FIG. 1 shows the device in'vertical sectionalong the line I-l in FIG. 2,
  • FIG. 2 shows the same device, viewed from above.
  • the device consists of a receiving,'or conveyor,'table, which is composed of two consecutive belt or chain conveyors 1 and 2. Both conveyors are made up of several parallel belts or chains. The speed of conveyor 2 is higher than that of conveyor 1.
  • a track 3 is mounted, on which a carriage 4 can be moved.
  • the carriage 4 has downwardly directed arms 5 of angular shape, which have been arranged in a row that is transverse to the direction of travel of the timber.
  • the arms 5 can be turned, independently of each other, upward and downward by means of the pressure cylinders 6.
  • a place can be arranged e.g. on the carriage 4, so that he has an unobstructed view of the timber moving on the conveyor table.
  • he has a control desk with pushbuttons for moving the carriage 4 and the different arms 5.
  • the arms 5 are in their lower position, whereby the movement of the pieces of timber coming behind is prevented when the preceding pieces of timber have moved some distance away, the operator raises the arms 5 so that the timber is free to move along with the conveyor 2.
  • the pieces of timber 7 may be, for instance, coniferous wood suitable for pulpwood.
  • the operator releases the next two pieces of timber 14, which may be e.g. hardwood suitable for pulpwood. At the same time he actuates the respective pushbutton of the electronic memory unit, so that this timber 14 will be directed onto its particular conveyor 11 or 12.
  • next piece of timber is, for instance, one suitable for use by the sawmill, it is guided to the conveyor 16.
  • the operator has to depress the respective pushbutton while he releases the piece 15 from behind the arms 5.
  • a device for sorting timber comprising a timber receiving table upon which timber is placed and advanced, a carriage reciprocally movable in the direction of travel of the timber above the table, downwardly directed arms pivotally mounted on said carriage and operator controlled so as to be selectively extendable into the path of the timbe" for stopping the advance of the pieces of timber, and movable out of the path of the timber for the purpose of permitting free advance movement of the timber so that selected timber can be advanced in groups, said arms being arranged in a transverse row relative to the direction of travel of the timber, and being turnable in a plane parallel to the direction of travel of the timber, said arms being movable independently of each other.
  • a device as claimed in claim 1 comprising conveyor means for receiving the timber from said receiving table in groups as selected by said arms, a plurality of conveyors for receiving timber from said conveyor means, and operator controlled selector means for guiding the groups of timber selected by the arms into respective of said conveyors.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Forests & Forestry (AREA)
  • Specific Conveyance Elements (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Weting (AREA)
US823328A 1968-07-11 1969-05-09 Device for sorting pieces of timber, such as logs, on the timber receiving table Expired - Lifetime US3581892A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI1993/68A FI41937B (pl) 1968-07-11 1968-07-11

Publications (1)

Publication Number Publication Date
US3581892A true US3581892A (en) 1971-06-01

Family

ID=8506518

Family Applications (1)

Application Number Title Priority Date Filing Date
US823328A Expired - Lifetime US3581892A (en) 1968-07-11 1969-05-09 Device for sorting pieces of timber, such as logs, on the timber receiving table

Country Status (9)

Country Link
US (1) US3581892A (pl)
JP (1) JPS4919389B1 (pl)
AT (1) AT296155B (pl)
DE (1) DE1925252C3 (pl)
FI (1) FI41937B (pl)
FR (1) FR2012702A1 (pl)
NO (1) NO127612B (pl)
SE (1) SE338744B (pl)
SU (1) SU370765A3 (pl)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281767A (en) * 1979-08-27 1981-08-04 Carpenter Robert C Trawler fish-sorting system
US4308958A (en) * 1980-03-17 1982-01-05 Morgan Construction Company Apparatus for separating unacceptable elongated elements
US4342386A (en) * 1979-12-17 1982-08-03 Nassau Recycle Corp. Article distributing apparatus
US4997079A (en) * 1988-03-01 1991-03-05 Kone Oy Procedure and means for parallelly aligning pieces of timber such as logs or billets
US20100025191A1 (en) * 2006-03-20 2010-02-04 Andritz Oy Method and apparatus for processing logs

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389857B (de) * 1987-05-04 1990-02-12 Haeupl Johann Vereinzelungsvorrichtung fuer rundhoelzer
DE4403681A1 (de) * 1994-02-07 1995-08-10 Trapo Stumpf Gmbh Vorrichtung zum Umreifen von auf einer Förderstrecke transportierten Packstücken
SI22473A (sl) 2008-03-31 2008-10-31 Gregor Ledinek Naprava in postopek za sortiranje desk

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358283A (en) * 1941-12-15 1944-09-12 Ind Patents Corp Material handling mechanism and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358283A (en) * 1941-12-15 1944-09-12 Ind Patents Corp Material handling mechanism and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281767A (en) * 1979-08-27 1981-08-04 Carpenter Robert C Trawler fish-sorting system
US4342386A (en) * 1979-12-17 1982-08-03 Nassau Recycle Corp. Article distributing apparatus
US4308958A (en) * 1980-03-17 1982-01-05 Morgan Construction Company Apparatus for separating unacceptable elongated elements
US4997079A (en) * 1988-03-01 1991-03-05 Kone Oy Procedure and means for parallelly aligning pieces of timber such as logs or billets
US20100025191A1 (en) * 2006-03-20 2010-02-04 Andritz Oy Method and apparatus for processing logs
US8070083B2 (en) 2006-03-20 2011-12-06 Andritz Oy Method and apparatus for processing logs

Also Published As

Publication number Publication date
NO127612B (pl) 1973-07-23
SE338744B (pl) 1971-09-13
DE1925252B2 (de) 1979-04-19
AT296155B (de) 1972-02-10
SU370765A3 (pl) 1973-02-15
FR2012702A1 (pl) 1970-03-20
JPS4919389B1 (pl) 1974-05-17
FI41937B (pl) 1969-12-01
DE1925252A1 (de) 1970-08-27
DE1925252C3 (de) 1979-12-13

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