EP1099486A2 - Vorrichtung und Verfahren zum Sortieren von Holzstücken - Google Patents

Vorrichtung und Verfahren zum Sortieren von Holzstücken Download PDF

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Publication number
EP1099486A2
EP1099486A2 EP00850167A EP00850167A EP1099486A2 EP 1099486 A2 EP1099486 A2 EP 1099486A2 EP 00850167 A EP00850167 A EP 00850167A EP 00850167 A EP00850167 A EP 00850167A EP 1099486 A2 EP1099486 A2 EP 1099486A2
Authority
EP
European Patent Office
Prior art keywords
bundles
interim storage
wood
pieces
conveyor
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.)
Withdrawn
Application number
EP00850167A
Other languages
English (en)
French (fr)
Other versions
EP1099486A3 (de
Inventor
Reidar Bergene Holm
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1099486A2 publication Critical patent/EP1099486A2/de
Publication of EP1099486A3 publication Critical patent/EP1099486A3/de
Withdrawn legal-status Critical Current

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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
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/38—Collecting or arranging articles in groups
    • 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

Definitions

  • the present invention regards a device for sorting pieces of wood in accordance with the introduction to the following Claim 1, as well as a method of sorting pieces of wood in accordance with the introduction to the following Claim 6.
  • a sorting device is known from the present applicant's own published Norwegian patent application no. 19803904, where pieces of wood are sorted singly and placed on interim storage conveyors arranged above each other. After reaching a sufficient number of pieces to make a bundle on an interim storage conveyor, the pieces of wood are retrieved one by one from the interim storage conveyor and stacked on top of each other.
  • NO 135704 shows a device for stacking pieces of wood on top of each other and next to each other into a packet.
  • CH 664710, DE 2939720 and US 4159058 show other devices that perform the same task as NO 135704.
  • a device which comprises several interim storage conveyors arranged above each other, each of which may have a length of from several 10s of metres up to 100 metres, in order to be able to hold a number of pieces of wood corresponding to one packet.
  • bundles this refers to a collection of pieces of wood, the number of which may vary from 2 to 20, all depending on the size of the pieces.
  • a bundle is preferably of a size that may be handled manually.
  • packet refers to a collection of bundles. One packet may contain from 10 to several hundred bundles, all depending on the size of the bundles, and is primarily suited for handling by fork lift truck or similar.
  • One bundle will almost always contain pieces of wood of a predetermined quality.
  • the quality is primarily determined by the inherent characteristics of the pieces of wood, such as appearance and strength. These qualities are often divided into from 3 to 5 categories.
  • the length of the piece of wood is decisive for the quality. It has become more and more common to cut the pieces of wood so that the lengths are predetermined, and so that all the pieces of wood in one bundle have approximately the same length, i.e. within a given length interval. Thus the length also becomes a quality criterion.
  • a predetermined length interval in each bundle will make it possible to greatly reduce the need for cutting pieces of wood.
  • each packet will contain bundles of pieces of wood of a predetermined quality.
  • Predetermined quality refers to pieces of wood having characteristics, such as appearance and length, which fall within certain criteria.
  • the present invention solves this problem through the characteristics stated in the characterising part of the following Claim 1 or Claim 6.
  • the present invention will first and foremost give both a reduction in the space required, particularly in the longitudinal direction of the machine, and in the requirement for packing stations, as only one packing station will normally be required.
  • Figure 1 shows a longitudinal conveyor 1 that receives pieces of wood issuing e.g. from a planer (not shown).
  • a sorting table 2 follows after the longitudinal conveyor. On this, the pieces of wood are transported in the transverse direction. At the edges of the sorting table 2 there is provided a respective end cross-cut saw 3 and 4 and end mill 5 and 6, for cutting and milling the ends of the pieces of wood.
  • an operator 8 When the piece of wood is within a certain area 7 of the sorting table 2, an operator 8 performs a visual evaluation of the piece of wood. He presses a button corresponding to the quality class to which he judges the piece of wood to belong. The quality class is communicated to a computer (not shown) that also keeps track of the location of the piece of wood at all times.
  • a length meter 9 is provided at the end of the sorting table, which meter may be a rod equipped with sensors in the form of pins that hang down at intervals of e.g. 30 cm.
  • the length of the piece of wood is assigned in the same manner as the quality class.
  • Reference number 10 denotes a bundle sorting machine. This is best seen in figure 2.
  • the bundle sorting machine 10 comprises a plurality of pockets 11 that correspond at least to the number of qualities into which the pieces of wood are to be sorted, i.e. the number of quality classes multiplied by the number of length classes.
  • Each piece of wood is fed onto a conveyor 12 arranged above the pockets 11, and then dropped into the pocket that is reserved for that particular quality.
  • the bundle is carried out of the pocket and down onto an underlying conveyor 13, in the same manner as the bundle 14.
  • the bundle is then passed through a strapping station 15, where the bundles are held together by means of straps, tape, plastic film, cardboard or other suitable materials.
  • Reference number 20 denotes an interim storage device (see also fig. 3). This comprises a number of interim storage conveyors 21 arranged above each other. Each interim storage conveyor can hold a number of bundles corresponding to at least the number of bundles that is to be packed to form a packet. In order to bring the bundles 14 up to the respective interim storage conveyors, a first elevator 22 is provided by the interim storage device 20. Each interim storage conveyor has an intake end and a delivery end.
  • Each interim storage conveyor 21 is designed to receive bundles of a predetermined quality at its intake end.
  • a number of bundles 14 corresponding to one layer 23 in a packet e.g. five bundles 14, lie close together on the interim storage conveyor 21.
  • a space 24 may be provided between each layer 23, although this is not strictly necessary.
  • the layers 23 are carried to a second elevator 25 one by one, which elevator is located at the delivery ends of the interim storage conveyors.
  • This elevator 25 carries the layer to a packing station 26 via a conveyor 27.
  • the layers 23 are stacked on top of each other until a packet 28 has been formed. After the packet 28 has been formed, it is transported to a longitudinal conveyor 29 that transports it onwards to storage or to customer transport.
  • FIG. 4 shows an interim storage conveyor 30 for bundled pieces of wood in accordance with the present invention, while the lower part of the figure shows an interim storage conveyor 31 for single pieces of wood according to prior art.
  • the interim storage conveyor 30 is considerably shorter than the interim storage conveyor 31, more specifically 1 / 5 of the length.
  • the extra length of the known interim storage conveyor constitutes a significant area that by the present invention may be used for other purposes.
  • the sorting and packing line becomes clearer and easier to keep track of, and the walking time for the personnel that has to move between the various units is reduced.
  • the feed rate When the pieces of wood have been bundled, the feed rate will be reduced to a fraction of the feed rate for single pieces. This is of great importance to the driving mechanism, wear and not least the ability of the machinery to absorb errors without the entire machinery having to be shut down.
  • the reduced feed rate will be of particular importance when handling small-sized pieces of wood and in the case of wood with a non-rectangular cross section.
  • the packing machine does not necessarily operate continuously. It may pack everything off one interim storage conveyor, and then wait for the next one to fill up. This lessens the requirements for monitoring the packing machine, as this will be at a standstill for some of the time.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Forests & Forestry (AREA)
  • Sorting Of Articles (AREA)
  • Pallets (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
EP00850167A 1999-11-11 2000-10-19 Vorrichtung und Verfahren zum Sortieren von Holzstücken Withdrawn EP1099486A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO19995522A NO310815B1 (no) 1999-11-11 1999-11-11 Innretning og fremgangsmåte for sortering av trevirkestykker
NO995522 1999-11-11

Publications (2)

Publication Number Publication Date
EP1099486A2 true EP1099486A2 (de) 2001-05-16
EP1099486A3 EP1099486A3 (de) 2004-09-08

Family

ID=19903972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00850167A Withdrawn EP1099486A3 (de) 1999-11-11 2000-10-19 Vorrichtung und Verfahren zum Sortieren von Holzstücken

Country Status (3)

Country Link
EP (1) EP1099486A3 (de)
EE (1) EE200000645A (de)
NO (1) NO310815B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2119648A1 (de) * 2008-05-08 2009-11-18 Springer Maschinenfabrik AG Sortieranlage
US7826921B2 (en) 2006-09-29 2010-11-02 Tin, Inc. Building lumber package assembly method and system
CN105032781A (zh) * 2015-08-25 2015-11-11 淄博大创自动化科技有限公司 一种折扇竹骨的初级选材设备
WO2020007101A1 (zh) * 2018-07-03 2020-01-09 无锡时代天使医疗器械科技有限公司 壳状牙科器械的分拣系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647063A (en) * 1969-12-30 1972-03-07 Irvington Forest Ind Inc Clutch-operated diverter for sorting system
DE3511993A1 (de) * 1984-04-11 1985-10-31 Tähkä Oy, Kaskinen Sortier- und leisteneinlegeverfahren fuer schnittholz
EP0216235A1 (de) * 1985-09-27 1987-04-01 GOMES S.p.A. Maschine zum Sortieren, Stapeln und Verpacken von typ-klassifizierten keramischen Platten
DE29719076U1 (de) * 1997-06-30 1997-12-18 Team Construct Maschinenbau Ges. M.B.H., St. Veit An Der Glan Vorrichtung zum Sortieren von Stückgut, insbesondere von Schnittholz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647063A (en) * 1969-12-30 1972-03-07 Irvington Forest Ind Inc Clutch-operated diverter for sorting system
DE3511993A1 (de) * 1984-04-11 1985-10-31 Tähkä Oy, Kaskinen Sortier- und leisteneinlegeverfahren fuer schnittholz
EP0216235A1 (de) * 1985-09-27 1987-04-01 GOMES S.p.A. Maschine zum Sortieren, Stapeln und Verpacken von typ-klassifizierten keramischen Platten
DE29719076U1 (de) * 1997-06-30 1997-12-18 Team Construct Maschinenbau Ges. M.B.H., St. Veit An Der Glan Vorrichtung zum Sortieren von Stückgut, insbesondere von Schnittholz

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7826921B2 (en) 2006-09-29 2010-11-02 Tin, Inc. Building lumber package assembly method and system
EP2119648A1 (de) * 2008-05-08 2009-11-18 Springer Maschinenfabrik AG Sortieranlage
CN105032781A (zh) * 2015-08-25 2015-11-11 淄博大创自动化科技有限公司 一种折扇竹骨的初级选材设备
WO2020007101A1 (zh) * 2018-07-03 2020-01-09 无锡时代天使医疗器械科技有限公司 壳状牙科器械的分拣系统

Also Published As

Publication number Publication date
NO995522D0 (no) 1999-11-11
NO995522L (no) 2001-05-14
EE200000645A (et) 2001-06-15
NO310815B1 (no) 2001-09-03
EP1099486A3 (de) 2004-09-08

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