EP1354678A2 - Appareil de séparation dans un dispositif pour coller de billes de bois - Google Patents

Appareil de séparation dans un dispositif pour coller de billes de bois Download PDF

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Publication number
EP1354678A2
EP1354678A2 EP03075879A EP03075879A EP1354678A2 EP 1354678 A2 EP1354678 A2 EP 1354678A2 EP 03075879 A EP03075879 A EP 03075879A EP 03075879 A EP03075879 A EP 03075879A EP 1354678 A2 EP1354678 A2 EP 1354678A2
Authority
EP
European Patent Office
Prior art keywords
wood blocks
separating mechanism
supporters
pressing
glued
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Withdrawn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
EP03075879A
Other languages
German (de)
English (en)
Other versions
EP1354678A3 (fr
Inventor
Pentti Kallio
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.)
Jarme Oy
Original Assignee
Jarme 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 Jarme Oy filed Critical Jarme Oy
Publication of EP1354678A2 publication Critical patent/EP1354678A2/fr
Publication of EP1354678A3 publication Critical patent/EP1354678A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined

Definitions

  • the present invention relates to a separating mechanism as defined in the preamble of claim 1 in a gluing apparatus for the gluing of elongated wood blocks, said apparatus comprising a unit for the application of adhesive and a pressing mechanism for pressing the wood blocks together.
  • adhesive is applied by means of glue application device to one of the two surfaces to be placed against each other, whereupon the pieces to be glued together are subjected to compression in a pressing device and held under compression until the adhesive has dried sufficiently.
  • the drying times are relatively long, and due to the long drying times, relatively large pressing devices are needed.
  • Patent specification Fl 97959 discloses an apparatus for joining wood blocks, such as glued laminated beams and laminated logs, wherein adhesive is applied to one surface of the wood blocks and the wood blocks are moved in a horizontal plane and heated from the opposite side by means of an IR radiator placed above them, whereupon the wood blocks are stacked so that the glued surface and the heated surface of adjacent blocks are placed against each other and pressed together by a pressing device. Adhesive is applied only to the block forming the lower surface while the block forming the upper surface is only heated. The wood blocks between these are treated in both ways.
  • planed blocks carried on a longitudinal conveyor through a glue application device are turned by means of a manipulator so that the glued surface faces downwards and then placed on a transverse conveyor, which supports it on nodules to avoid soiling the glue.
  • the block is transferred transversely under the IR radiator, whereby the surface of the adhesive layer is heated to a desired temperature.
  • the block is turned and placed on a comb conveyor which supports it on combs functioning as separating elements, leaving an air gap between the blocks to prevent reaction of the adhesive.
  • the blocks carried by the comb conveyor are set one upon the other and, when the stack thus formed has reach the desired size, it is moved to the pressing device either by means of manipulators one at a time or as a bundle.
  • the adhesive may also consist of a twin-component glue having a resin component and a hardening component, in which case the resin component and the hardening component are applied separately, the blocks being joined together in a pressing device by heating.
  • the resin component is applied to one of the surfaces and the hardening component to the other, as described e.g. in published patent application Fl 57969.
  • the object of the present invention is to achieve a new type of separating mechanism that allows more efficient gluing together of wood blocks.
  • the separating mechanism of the invention comprises a vertical frame part provided with supporters placed one above the other, upon which the wood blocks are arranged one above the other spaced from each other.
  • the apparatus comprises a stopper arrangement, by means of which the wood blocks are stopped so that they will fall one upon the other before being glued together in a pressing device or before it, and an actuator, by means of which the frame part can be raised/lowered and moved into the pressing device.
  • the apparatus comprises a pusher, by means of which the wood blocks are pushed onto the supporters.
  • the pusher and its stopping piece are provided with a projection and a notch corresponding to each other to allow shaped compregnated wood blocks to be produced.
  • the solution of the invention provides many advantages.
  • the separating mechanism makes it possible to reduce the joining time as the wood blocks can be placed one above the other on supporters and dropped onto one another relatively quickly.
  • the apparatus is simple and occupies relatively little space due to its upright structure. If the stopping arrangement is disposed before the pressing device, the dimensions of the pressing device can be reduced because a complete bundle can be fed into the mouth of the pressing device.
  • the separating mechanism of the invention is used to produce e.g. laminated logs from laminae.
  • the planed laminae 1 are conveyed on a longitudinal conveyor 2 into an IR radiation heater, where both joint surfaces 1a, 1b of the laminae are heated.
  • the laminae 1 are passed into a glue applicator, where adhesive is applied to one 1a of the joint surfaces.
  • the laminae are stacked and pressed together in a vertical pressing device to form a laminated log.
  • the laminae 1 are arranged in the separating mechanism, which maintains an air gap between the laminae 1 to prevent premature reaction of the adhesive.
  • the separating mechanism presented in Fig. 1 comprises a vertical main beam 3 and, arranged on one side of it, horizontal comb-like supporters placed one above the other, consisting of round bars 4 or equivalent placed at certain distances.
  • the frame 3 can be raised/lowered and moved in a horizontal plane by means of its actuating mechanism.
  • the apparatus works as follows: Each lamina 1 brought by the longitudinal conveyor 2 to a position alongside the separating mechanism is pushed by means of pushers 5 disposed consecutively and provided with a pushing element 6 at their ends onto the supporter 4 currently located at the level of the longitudinal conveyor 2. Once a sufficient number of laminae have been thus loaded, the frame 3 with the supporters 4 is moved to a position next to a stopping device (not shown) comprised in the pressing device, which stops the laminae 1 while the frame part continues moving, thus causing the laminae to fall down one upon the other to be pressed together.
  • the conveyor 2 and the supporters 4 are aligned with each other.
  • the conveyor which is disposed before the separating mechanism, pushes the lamina 1 onto the supporter 4 next to it, whereupon the supporters are raised so that the next lamina will be moved onto the next supporter below, and so on, until a sufficient number of laminae have been arranged on the supporters for the pressing operation.
  • the frame part is moved laterally (arrow) as necessary, depending on which one of the pressing units is being loaded with laminae.
  • Fig. 4 presents an embodiment in which the stopping devices consist of pushers 5 and their back stops 7.
  • the pushers 5 have a vertical pushing bar 8.
  • the back stop 7 is likewise a vertical bar.
  • the apparatus presented in Fig. 4 can also be used to create shaped products, such as thresholds or the like.
  • the push bar 8 of the pusher 5 has a projection 9 at about the middle of it and similarly the back stop 7 has a corresponding notch 11 at the desired position, so that the bundle 13 piled on the support 12 has a staggering where one of the laminae 1 may be laid deeper than the others to produce a desired shape as illustrated in Fig. 4.
  • the bundles 13 may be piled onto the support 12 either in the pressing device or alternatively before the pressing device. If the bundles 13 are assembled before the pressing device, then the support 12 extends outside the pressing device as seen from the supply direction at least through a distance required by the length of the wood blocks.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
EP03075879A 2002-04-15 2003-03-25 Appareil de séparation dans un dispositif pour coller de billes de bois Withdrawn EP1354678A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20020725A FI116205B (fi) 2002-04-15 2002-04-15 Erotuslaitteisto puukappaleiden liimauslaitteistossa
FI20020725 2002-04-15

Publications (2)

Publication Number Publication Date
EP1354678A2 true EP1354678A2 (fr) 2003-10-22
EP1354678A3 EP1354678A3 (fr) 2007-10-17

Family

ID=8563769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03075879A Withdrawn EP1354678A3 (fr) 2002-04-15 2003-03-25 Appareil de séparation dans un dispositif pour coller de billes de bois

Country Status (3)

Country Link
EP (1) EP1354678A3 (fr)
CA (1) CA2425394A1 (fr)
FI (1) FI116205B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581895A (zh) * 2010-09-14 2012-07-18 勃兰特边缘加工技术有限责任公司 配给镶边运动机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1982004A (en) * 1930-02-17 1934-11-27 Chrysler Corp Gluing machine
DE4135727A1 (de) * 1991-05-03 1992-11-05 Rueckle Carl Maschinenbau Verfahren und vorrichtung zum zusammensetzen und verleimen von einzelnen holzelementen
FI97959B (fi) * 1995-06-20 1996-12-13 Jaerme Oy Menetelmä ja laitteisto ainakin kahden puuainekappaleen liittämiseksi yhdeksi kappaleeksi

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1982004A (en) * 1930-02-17 1934-11-27 Chrysler Corp Gluing machine
DE4135727A1 (de) * 1991-05-03 1992-11-05 Rueckle Carl Maschinenbau Verfahren und vorrichtung zum zusammensetzen und verleimen von einzelnen holzelementen
FI97959B (fi) * 1995-06-20 1996-12-13 Jaerme Oy Menetelmä ja laitteisto ainakin kahden puuainekappaleen liittämiseksi yhdeksi kappaleeksi

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581895A (zh) * 2010-09-14 2012-07-18 勃兰特边缘加工技术有限责任公司 配给镶边运动机构
CN102581895B (zh) * 2010-09-14 2015-12-02 勃兰特边缘加工技术有限责任公司 配给镶边运动机构

Also Published As

Publication number Publication date
FI116205B (fi) 2005-10-14
FI20020725A (fi) 2003-10-16
FI20020725A0 (fi) 2002-04-15
CA2425394A1 (fr) 2003-10-15
EP1354678A3 (fr) 2007-10-17

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