US3557952A - Apparatus for handling sawn timber - Google Patents

Apparatus for handling sawn timber Download PDF

Info

Publication number
US3557952A
US3557952A US721656A US3557952DA US3557952A US 3557952 A US3557952 A US 3557952A US 721656 A US721656 A US 721656A US 3557952D A US3557952D A US 3557952DA US 3557952 A US3557952 A US 3557952A
Authority
US
United States
Prior art keywords
conveyor
timber
longitudinal direction
rollers
transfer means
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.)
Expired - Lifetime
Application number
US721656A
Other languages
English (en)
Inventor
Olli Heikinheimo
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.)
Plan Sell Oy
Original Assignee
Plan Sell 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 Plan Sell Oy filed Critical Plan Sell Oy
Application granted granted Critical
Publication of US3557952A publication Critical patent/US3557952A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • Y10S209/942—Operator selects destination of item

Definitions

  • the present invention relates to an apparatus for handling sawn timber of the type comprising an elongated conveyor for carrying timber pieces transversally of their longitudinal direction, a plurality of storage pockets placed at one side of the conveyor, and mechanical means for the automatical transfer of each timber piece to a selected storage pocket according to the dimension and/or quality class of the timber piece concerned.
  • SHEET 1 [IF 3 011 Hf/K/NHE/MO A TTOR/VE Y.
  • the sorting is most generally carried out in such manner that a plurality of workers manually pull the timber pieces from an elongated conveyor, on which the timber pieces are carried in a transversal position, to storage pockets situated at one side of the conveyor, and the sorting is thereat carried out by the eye.
  • the actual sorting can be carried out at an earlier working stage and the timber pieces be provided with sorting marks, so that the workers have only mechanically to pull out the timber pieces in accordance with the sorting marks. This work is extremely heavy, wherefore it becomes increasingly difficult to get regular workers for this purpose, and further the system requires a relatively great number of workers.
  • the timber pieces, sorted according to dimension and/or quality class are delivered with utilization of impulses synchronized with the movement of the timber pieces, onto storage places under the conveyor table, wherefrom the assembled bundles then are transferred further by means of conveyors, wagons or traverses to the following working step.
  • the timber pieces, sorted according to thickness dimension (and quality class) are conveyed on separate longitudinal conveyors and sorted then according to width dimension and delivered to the different storage places.
  • the present invention provides an apparatus which besides permitting a reduction of the number of workers required with a moderate space requirement, also at the same time can be constructed with utilization of existing hand sorting plants, so that the investment requirement in relation to the achieved improvement will be considerably more moderate than in the case of the above-described automatized prior known sorting plants.
  • FIG. 1 shows a sorting plant according to the invention in plan view
  • FIG. 2 shows a section along the line II-II of FIG. 1;
  • FIG. 3 shows on a greater scale a detail in section along the line III-III of FIG. 1;
  • FIG. 4 a section along the line IV-IV of FIG. 3.
  • FIG. 5 shows another detail in section along the line V-V of FIG. 1;
  • FIG. 6 a section along the line VI-VI of FIG. 5;
  • FIG. 7 shows in a manner corresponding to FIG. 1 another embodiment of the invention; while FIG. 8 shows a detail as viewed in section along the line VIII-VIII of FIG. 7.
  • reference numeral 1 designates a feeding plane for timber pieces, from which plane the pieces are one by one delivered in transversal position onto a catcherequipped distributing conveyor 2, which in its turn delivers the timber pieces evenly spaced on a sorting conveyor 3.
  • a catcherequipped distributing conveyor 2 Along one side of this elongated sorting conveyor are provided a plurality of storage places 7,, 7 7,, 7,, for the various dimensions and/or quality classes of timber.
  • the storage places are arranged in piles at each side of delivery stations, which according to the invention each comprise a mechanical pullingout device 8,, 8 ....8,, 8,, and a distributing device which will be more fully described hereinafter.
  • the pulling-out devices consist in the shown embodiment of a pair of rollers, one or both of which are driven and both extending parallely with the longitudinal direction of the conveyor 3 and both mounted elastically so as to form between the rollers an open gap directed against the travelling direction of the timber places, whereat the rollers at this end are conically tapering and at least the driven roller is formed with a helical ridge for moving the timber piece in toward the cylindrical portions of the rollers.
  • the pulling-out devices 8,8 are arranged mutually stepwise displaced in the transversal direction of conveyor 3 with the desired pitch, so that a pulling-out device, e.g. 8n, situated at a later position with respect to the travel direction of the timber piece is situated nearer the conveyor 3 than is the next preceding pulling-But device 8;, "rrle'earive' ar' 3 i s fapefi rigstepwise in a corresponding manner as required.
  • each timber piece on the conveyor 3 in a manner correspond-' ing to the grouping of the pulling-out devices 8 -8 it is possible to cause each timber piece to come into contact at the desired delivery station with the pulling-out device belonging there, but freely to pass all preceding pullingout prises for instance a conveyor for transverse displacement in the form of a table of rollers 4 provided in association with the distributing conveyor 2 with stop elements 5 arranged parallel to the conveyor chains and of a number corresponding to that of the pulling-out devices 8 --8, and having the same transverse displacement pitch as that of the pulling-out devices said stop elements 5 extending over the entire length of the rollers 4.
  • a conveyor for transverse displacement in the form of a table of rollers 4 provided in association with the distributing conveyor 2 with stop elements 5 arranged parallel to the conveyor chains and of a number corresponding to that of the pulling-out devices 8 --8, and having the same transverse displacement pitch as that of the pulling-out devices said stop elements 5 extending over the entire length of the rollers 4.
  • the stop elements 5 must be so arranged that they normally assume an inactive position of repose but can be brought into active operational position through a selective sorting impulse for a particular piece of timber, and thereafter to follow the timber piece in the operational position during the entire time the timber piece remains on the rollers 4.
  • An example of such a system of stop elements will be described in the following with reference to F I68. 3 and 4.
  • FIG. 3 shows a portion of the conveyor 2 with a roller 4.
  • ' plurality of block-formed stop elements 5 are arranged side by side, displaceable vertically within a frame 6.
  • a rotating cam body comprising at least one cam plate 19 for each stop element 5. Since the rollers 4 in the shown embodiment are of such length as to extend simultaneously over three catcher intervals of the conveyor 2, this means that three successively positioned timber pieces must be able to be delivered at the same storage place. Therefore there must be provided three shafts I8, 18 and 18 with cam plates 19, 19 and 19 as shown in FIG. 6. Said shafts are parallel to each other and the cam plates 19, I9 and 19 operate the stop elements 5 through a common pivotably mounted,
  • the cam plates 19 are therefore preferably shaped so that as the shaft starts rotating, all the stop elements 5 situated within the first catcher interval are simultaneously raised to operating position and thereafter a stop element in front of them with respect to the travel direction will successively be raised while the rearmost one is lowered back to inactive position, as indicated by arrows in FIG. 5.
  • the stop elements thus follow the timber piece during the entire time the same is located within the operating zone of the rollers 4, thus retaining the timber piece in unchanging transverse displacement position on the conveyor 2.
  • the control system is so arranged that if the shaft already is active when a new impulse for the same stop element 5 is given, the impulse passes to the shaft 18,, and if this shaft also is already active, the impulse passes onto the shaft 18
  • the selection impulse can be given far in advance along the travel path of the timber pieces and in synchronism with their movement, or as late as in connection with the arrival of the timber pieces onto the conveyor 2.
  • the sorting conveyor 3 When the timber pieces have reached the sorting conveyor 3 they will be themselves be retained in a constant transverse displacement position all the time, so that each timber piece at its arrival to its destined storage place will be engaged and pulled out by the pulling-out device situated at that place. So for instance the second timber piece counted from the right, shown on the distributing conveyor 2 (FIG. 1) will be caught not before the penultimate pulling-out roller pair 8,, while the third so shown timber piece will be caught by the pulling-out roller pair 8 and so on.
  • each roller pair 8,--8 For removal of the timber pieces at the storage places 7 7 there are in connection with each roller pair 8,--8, provided a triangular tiltably mounted guide plate 9 and an elongated slide plane sloping toward the sorting conveyor 3 (FIGS. 5 and 6).
  • a triangular tiltably mounted guide plate 9 When a timber piece is pulled out by the rollers 8 at a storage plate 7, the leading end of the piece slides along the slide plane 10, but when the timber piece has passed entirely out of the roller pair 8, its trailing end will, guided by the guide plate 9 fall either to the right or to the left of the slide plane 10, depending on how the guide plate 9 is positioned, after which the leading end also falls over the edge of the slide plane 10.
  • FIGS. 7 and 8 illustrate another embodiment, which in its principal features is similar to that shown in FIGS. 1 to 6 and in which corresponding parts therefore are designated with the same, reference numerals.
  • the embodiment according to FIGS. 7 and 8 thus comprises the feeding plane 1 and the therewith associated distributing conveyor 2 for delivery of the timber pieces onto the sorting conveyor 3.
  • the storage places 7 -7 At one side of the conveyor 10 are provided the storage places 7 -7,, with the ancillary devices 9, 10 according to FIG. 5, 6 and in association therewith the pulling-out devices consisting of the roller pairs 8,8,,.
  • all the pulling-out devices 8.8, are aligned with each other and positioned in the immediate proximity of the storage places 7 ,7, resulting in that the sorting conveyor 3 is not stepwise tapering in this case.
  • a roller table 4 provided in connection with the distributing conveyor 2 for the displacement of the timber pieces into the desired positions transversally, but instead of the stop element system 5 there is provided only one stationary stop element 12, which is so positioned that the timber pieces will freely pass the pullingout rollers 8,8,,.
  • a pushing element provided shortly detail in FIG. 8, a pushing element comprises an engaging head 13 mounted on the piston rod of a pneumatic or hydraulic cylinder 14 which in its turn is pivotably mounted above the conveyor 3 on a frame 15.
  • a stop element 16 On the frame 15 there is preferably also mounted a stop element 16 so positioned, that a timber piece which rests with its end against the stop element 16, will be engaged by the next pulling-out roller pair.
  • the timber piece is brought to said position through a sorting impulse synchronized with the movement of the timber piece, said impulse, at the moment the timber piece arrives to the pushing element, actuating the cylinder 14 to bring the engagement head 13 into engagement with the timber piece soas to push the same toward the stop element 16 and then to return to its inactive position.
  • a roller 17 can be provided at the location shown in FIG. 8.
  • Apparatus for handling sawn timber pieces comprising an elongated conveyor for transport of timber pieces in a transverse position in the longitudinal direction of the conveyor, a plurality of storage pockets at one side of the conveyor spaced from each other in the longitudinal direction of the conveyor, a mechanical transfer means situated adjacent each of said storage pockets for transferring timber pieces in their longitudinal direction transversally of said conveyor towards said storage pockets, the mechanical transfer means adjacent each of said storage pockets being stepwise placed more towards the conveyor in the direction of travel thereof, selectively operated feeding means for bringing a selected timber piece into engagement with the transfer means at a desired storage pocket and transferring the timber piece into said storage pocket, said feeding means comprising a set of driven rollers placed in front of the first of said mechanical transfer means for displacing the timber pieces transversally of the conveyor towards the side thereof at which the storage pockets are situated and a plurality of stop means corresponding in number to the mechanical transfer means and each being aligned with a.
  • stop means having an inoperative position and an operative position in which they stop the movement of a timber piece displaced by said driven rollers, and control means for selectively actuating any desired stop means to its operative position in synchronism with the advance of a selected timber piece for bringing said timber piece into a position transversally of the conveyor where it will be engaged by the mechanical transfer means upon arrival at the selected storage pocket.
  • each of said mechanical transfermeans comprising a pair of driven rollers extending substantially in the longitudinal direction of the conveyor and having an open gap between the rollers at the ends thereof facing the timber pieces arriving at the rollers carrier by the conveyor.
  • Apparatus for handling sawn timber pieces comprising an elongated conveyor for transport of timber pieces in a transverse position in the longitudinal direction of the conveyor, a plurality of storage pockets at one side of the conveyor spaced from each other in the longitudinal direction of the conveyor, a mechanical transfer means situated adjacent each of said storage pockets for transferring timber pieces in their longitudinal direction transversally of said conveyor towards said storage pockets, the mechanical transfer means adjacent each of said storage pockets being aligned with each other in the longitudinal direction of the conveyor outside of the path of travel of the timber pieces on the conveyor, and each of said transfer means comprising a pair of driven rollers extending substantially in the longitudinal direction of the conveyor and having an open gap between the rollers at the ends thereof facing the timber pieces arriving at the rollers, selectively operated feeding means for bringing a selected timber piece into engagement with the transfer means at a desired storage pocket and transferring the timber piece into said storage pocket, a feeding means and a stop means being placed in front of each of said transfer means, said feeding means having an inoperative position in which they allow the timber pieces to pass
  • each of said feeding means comprising a fluid operated cylinder placed above the conveyor inclined towards the side thereof at which the storage pockets are situated and having a piston shaft movable between a retracted and an extended position respectively, a gripping member at the free end of said piston shaft being provided for engagement with a timber piece in the extracted position of said cylinder shaft and pushing said timber piece against the corresponding stop means.
  • each of said feeding means comprising a set of driven rollers substantially parallel with the longitudinal direction of the conveyor, said roller set being movable between a lower inoperative position beneath the path of travel of the timber pieces on said conveyor and an upper operative position in which said roller set will displace a timber piece against the corresponding stop means.
  • Apparatus for handling sawn timber pieces comprising an elongated conveyor for transport of timber pieces in a transverse position in the longitudinal direction of the conveyor, a plurality of storage pockets at one side of the conveyor spaced from each other in the longitudinal direction of the conveyor, a mechanical transfer means situated adjacent each of said storage pockets for transferring timber pieces in their longitudinal direction transversally of said conveyor towards said storage pockets, the mechanical transfer means adjacent each storage pocket being aligned with each other in the longitudinal direction of the conveyor in the path of travel of the timber pieces on said conveyor, each of said transfer means comprising a pair of driven rollers extending in the longitudinal direction of the conveyor to leave an open gap between the rollers, the rollers being movable in the vertical direction between an inoperative position in which the gap between the rollers allows a timber piece to pass and an operative position in which the rollers engage a timber piece for the transfer thereof to a storage pocket, selectively operated feeding means for bringing a selected timber piece into engagement with the transfer means at a desired storage pocket and transferring the timber piece into said storage pocket

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Forests & Forestry (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
US721656A 1967-04-19 1968-04-16 Apparatus for handling sawn timber Expired - Lifetime US3557952A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI115767 1967-04-19

Publications (1)

Publication Number Publication Date
US3557952A true US3557952A (en) 1971-01-26

Family

ID=8505188

Family Applications (1)

Application Number Title Priority Date Filing Date
US721656A Expired - Lifetime US3557952A (en) 1967-04-19 1968-04-16 Apparatus for handling sawn timber

Country Status (2)

Country Link
US (1) US3557952A (enrdf_load_stackoverflow)
SE (1) SE315421B (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0329253A1 (en) * 1988-02-19 1989-08-23 Hoogovens Groep B.V. Apparatus for sorting metal bars by length
US6340084B1 (en) * 1999-12-24 2002-01-22 Terry E. Burcaw Lumber staging device
US20040025654A1 (en) * 2002-03-26 2004-02-12 Weyerhaeuser Company Cutter trimmer sorter
US20060237510A1 (en) * 2005-04-18 2006-10-26 Ghosh Pradip K Short bar separation and recovery system and method
US20120018371A1 (en) * 2009-03-26 2012-01-26 Pierre Lucien Cote Non-braided reinforced holow fibre membrane
US20140048178A1 (en) * 2012-08-17 2014-02-20 Baxley Equipment Co. System and method for double even ending lumber
US11691310B2 (en) 2017-10-20 2023-07-04 Mitek Holdings, Inc. Automated lumber cutting and delivery system
WO2024176019A1 (en) * 2023-02-23 2024-08-29 Georgia-Pacific Gypsum Llc System and method for rejecting wall boards

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279600A (en) * 1964-04-03 1966-10-18 Moore Dry Kiln Company Lumber sorting and stacking apparatus
US3329251A (en) * 1966-01-06 1967-07-04 Forano Lte Long log ejector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279600A (en) * 1964-04-03 1966-10-18 Moore Dry Kiln Company Lumber sorting and stacking apparatus
US3329251A (en) * 1966-01-06 1967-07-04 Forano Lte Long log ejector

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0329253A1 (en) * 1988-02-19 1989-08-23 Hoogovens Groep B.V. Apparatus for sorting metal bars by length
US4919273A (en) * 1988-02-19 1990-04-24 Hoogovens Groep B.V. Apparatus for sorting metal bars by length
AU606782B2 (en) * 1988-02-19 1991-02-14 Hoogovens Groep Bv Apparatus for sorting metal bars by length
US6340084B1 (en) * 1999-12-24 2002-01-22 Terry E. Burcaw Lumber staging device
US6892614B2 (en) * 2002-03-26 2005-05-17 Weyerhaeuser Company Cutter trimmer sorter
US6826990B2 (en) 2002-03-26 2004-12-07 Weyerhaeuser Company Cutter trimmer sorter
US20040025654A1 (en) * 2002-03-26 2004-02-12 Weyerhaeuser Company Cutter trimmer sorter
US20060237510A1 (en) * 2005-04-18 2006-10-26 Ghosh Pradip K Short bar separation and recovery system and method
US7228972B2 (en) * 2005-04-18 2007-06-12 Morgan Construction Company Short bar separation and recovery system and method
US20120018371A1 (en) * 2009-03-26 2012-01-26 Pierre Lucien Cote Non-braided reinforced holow fibre membrane
US9132390B2 (en) * 2009-03-26 2015-09-15 Bl Technologies Inc. Non-braided reinforced holow fibre membrane
US20140048178A1 (en) * 2012-08-17 2014-02-20 Baxley Equipment Co. System and method for double even ending lumber
US9481104B2 (en) * 2012-08-17 2016-11-01 Baxley Equipment Co. System and method for double even ending lumber
US11691310B2 (en) 2017-10-20 2023-07-04 Mitek Holdings, Inc. Automated lumber cutting and delivery system
WO2024176019A1 (en) * 2023-02-23 2024-08-29 Georgia-Pacific Gypsum Llc System and method for rejecting wall boards

Also Published As

Publication number Publication date
SE315421B (enrdf_load_stackoverflow) 1969-09-29

Similar Documents

Publication Publication Date Title
US3122362A (en) Conveyor installation
US5205705A (en) Apparatus and process for feeding panels to a panel cutting saw
US3718062A (en) Product handling system for cooling beds
US4610347A (en) Dividing device for collecting commodities incorporated in a commodity collecting device
US4679685A (en) Accumulating commodity conveyor
DE2321534A1 (de) Transportvorrichtung
US3557952A (en) Apparatus for handling sawn timber
US2868394A (en) Conveyor
US5207311A (en) Method and apparatus for automatically feeding articles in aligned condition to packaging machine
US2952955A (en) Bottle packing machine
US4732256A (en) Storage unit for a conveyor system
US3743118A (en) Stacking device for regularly shaped, flat articles, for examples biscuits or cookies
US4475644A (en) Method and apparatus for feeding lumber
US4294347A (en) Automatic accumulating lift and carry transfer mechanism
US2682344A (en) Mechanism for stacking sheet material
US2882659A (en) Stack transfer and bottom wrapper insertion unit
US4364471A (en) Automatic accumulating lift and carry transfer mechanism
US3189177A (en) Sorter
US4069910A (en) Apparatus and method for center positioning lumber and the like
JPH05285719A (ja) アングルガイド型丸刃シヤー用の送り装置
US4157176A (en) Apparatus for precisely stacking textile pieces of sheetlike form
DE69521919T2 (de) Vorrichtung zum Zuführen und Sortieren von Gegenständen
US4948110A (en) Transferring-out facility
US4179236A (en) Board separator
US3138258A (en) Method and apparatus for sorting automatically logs and like objects