EP0225577A1 - Presse pour la fabrication de panneaux de bois - Google Patents

Presse pour la fabrication de panneaux de bois Download PDF

Info

Publication number
EP0225577A1
EP0225577A1 EP86116673A EP86116673A EP0225577A1 EP 0225577 A1 EP0225577 A1 EP 0225577A1 EP 86116673 A EP86116673 A EP 86116673A EP 86116673 A EP86116673 A EP 86116673A EP 0225577 A1 EP0225577 A1 EP 0225577A1
Authority
EP
European Patent Office
Prior art keywords
press
layers
layer
jaws
solid wood
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.)
Granted
Application number
EP86116673A
Other languages
German (de)
English (en)
Other versions
EP0225577B1 (fr
Inventor
Peter Schacht
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6287380&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0225577(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT86116673T priority Critical patent/ATE44256T1/de
Publication of EP0225577A1 publication Critical patent/EP0225577A1/fr
Application granted granted Critical
Publication of EP0225577B1 publication Critical patent/EP0225577B1/fr
Expired legal-status Critical Current

Links

Images

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
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/0086—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by connecting using glue
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D3/00—Veneer presses; Press plates; Plywood presses

Definitions

  • the invention relates to a press for producing a solid wood panel according to the preamble of claim 1.
  • solid wood boards are used instead of grown wooden boards, which can still work well after processing and thus lead to warping, cracking or similar damage, which are formed from several layers, which in turn each consist of layers relatively narrow wooden slats are formed.
  • the wooden strips are cut in the direction of the fibers so that there is a single direction of fibers in each layer.
  • the grain directions and thus also the extensions of the wooden strips in two neighboring layers are transverse to each other.
  • the wooden strips at least that surface layer, which forms one of the visible surfaces of the solid wood panel, are made of faultless wood, so that after pressing and thus gluing, the visible surface formed by these wooden strips can in no way be seen that they are not made from a one-piece wooden panel, but is formed from several, glued strips.
  • After the production and processing of such a wooden panel however, there is a certain shrinkage of such wooden strips across their fibers, which does not lead to the entire solid wooden panel itself showing cracks, warping or no longer being true to size, but nevertheless leads to the fact that Joints between the individual wooden strips are visible on the visible surface, so that the desired impression of a one-piece wooden panel is no longer achieved.
  • the invention is therefore based on the object, the press mentioned in such a way that the by this press or the method implemented by this is a solid wood panel, in which even after prolonged use under unfavorable climatic conditions, such as high air dryness, no joints between the wooden slats forming the visible surface or visible surfaces.
  • two side slides are provided which compress them transversely to the pressing direction of the press plates and to the fiber direction of a surface layer or both surface layers until the wooden strips of the respective surface layer bulge.
  • the press drive for the press plates is designed such that they come to a standstill in a position in which their mutual distance is a little larger than the thickness of the layer layers. In this way, the reach down to the breaking of the wood strips is prevented due to the effect of the side slide outwardly or inwardly bulging wooden slats in firm abutment against the press plates, so that a further W ben oil.
  • the sideshifters assume their end position and remain there for a short time; then the press plates are in turn moved to their end position, in which they flatten the bulges that have arisen, which in turn reach their end position.
  • the press plates remain in this end position for a short time until the gluing is complete. Then the sideshift and press plates move apart so that the solid wood plate thus created can be removed.
  • the sideshift must therefore lie flat against the side edges of the surface layers and cover them fully to prevent the wood from splintering in the area of the sideshift system.
  • the sideshift must therefore preferably be in contact with the press plates. Now the last movement To enable the press plates to flatten the curvatures, the side slides are each divided into two jaws, each of which is in engagement with one of the surface layers.
  • the intermediate layer (s) arranged between the surface layers are preferably set back from those side edges of the surface layers against which the jaws of the side slides bear in order to avoid disruptive engagement with the jaws.
  • the invention relates not only to the press according to the invention, but also to a method for producing a solid wood panel, the essence of the method being that the surface layers are transverse to the pressing direction of the press panels and to the fiber direction of the same Wooden slats forming surface layers are pressed together shortly before the press plates are closed, until the wooden slats bulge out, and when the resulting arches are subsequently pressed flat, they remain in unchanged pressing engagement.
  • the jaws can each be designed as a continuous bar, the height of which corresponds to that of the surface layers.
  • the two jaws of one side slide each have mutually facing, interlocking guides, which are preferably designed in the form of opposing grooves or webs extending in the direction of movement of the side slide.
  • the contact surface extends beyond the height of the side edges of the surface layers and ensures over the entire length of the side jaws that they cannot move locally relative to their direction of movement relative to one another, so that even when the highest pressing pressures are exerted, damage to the Side edges is effectively avoided.
  • the two jaws in the area of their interlocking guides which are arranged at the level of middle layers of the solid wood panel, provide a stop against it, so that it is possible to produce a solid wood panel with clean, non-stepped side edges.
  • the guides described are sufficient for the relative movement in order to ensure the required mobility of the two jaws of one side slide in each case in the direction of the press pressure of the press plates.
  • the two side jaws are connected to one another in a hinge-like manner, the pivot axis running parallel to the extension of the side jaws.
  • the press plates are normally arranged horizontally, and the lower press plate can be set up as a fixed support for the layer layers.
  • the side slides are lowered together with the upper press plate, with the lower jaw of each of the two side slides assuming a swivel position in which they move layer layers lying on the lower press plate or the machine table without any problems until they are seated on the lower press plate or the machine table.
  • a solid wood panel 1 is shown schematically and to scale, which is formed from three layers of plywood 2, 3, 4, each of which is made from each other parallel wooden strips 5 is formed.
  • the wooden strips 5 of the two surface layers 2, 4 run parallel to one another, while the wooden strips 5 of an intermediate layer 3 sandwiched between these layers 2, 4 are arranged perpendicular to the wooden strips 5 of the surface layers 2, 4.
  • the length of the wooden strips of the surface layers 2, 4 is 560 cm
  • the length of the wooden strips 5 of the intermediate layer 3 is a little shorter than 230 cm
  • the thickness of the wooden strips of the surface layers 2, 4 is 4.3 mm in each case
  • the total height of the three layers 2, 3 and 4 is 19 mm.
  • the grain of the wooden strips 5 extends in the longitudinal direction.
  • Fig. 2 the pressing process according to the invention is shown schematically.
  • FIG. 1 The stack shown in FIG. 1 is placed on a lower press plate or a machine table 6.
  • An upper press plate 7, which extends parallel to the lower press plate 6, is lowered into an intermediate layer in which its lower surface lies a distance b above the uppermost surface of the upper surface layer 2.
  • the two surface layers 2, 4 are pressed together in the direction of arrows a by side shifters shown in FIG. 3.
  • the intermediate layer 3 is set back from the side edges of the surface layers 2, 4 which are exposed to the pressing pressure in the direction of the arrows a, so that the intermediate layer remains unaffected by the pressing process.
  • the pressing pressure in direction a is increased until the wooden strips 5 try to avoid the pressing pressure by arching.
  • the bulge can, as shown in the upper surface layer 2, take place towards the free surface, but can also, as shown schematically on the lower surface layer 4, take place towards the intermediate layer 3. It is essential, however, that due to the position of the upper press plate 7, the degree of curvature of the individual wooden strips 5 b / 2 cannot exceed, this dimension being chosen so that no damage to the individual wooden strips 5 can occur due to their curvature.
  • FIG 3 shows a cross section through the press according to the invention.
  • the upper press plate 7 is here in its end position relative to the lower press plate 6.
  • the upper press plate 7 carries on its upper side a press drive 9, shown only schematically, for pressing two side slides 8 in direction a (FIG. 2).
  • the side slides 8 each have a stationary jaw 10 which engages under the upper press plate 7 and which is displaceable along the lower surface of the upper press plate 7 and the height of which must fully cover the edges of the wooden strips 5 of the upper surface layer 2.
  • a downward-pointing extension is arranged which carries a rigid hinge axis 11 which is perpendicular to the image plane of FIG. 3 and thus to the direction of movement of both the press plates 6, 7 and the side shift 8 extends.
  • a lower jaw 12 is articulated on this hinge axis 11, which rests with a lower contact surface on the machine table or the lower press plate 6 and has a height which does not fall below the thickness of the wooden strips 5 of the lower surface layer 4.
  • the side slides 8 can also be lowered at least within certain limits independently of the upper press plate 7, so that in the position of FIG. 2 there is also the distance b between the upper jaws 10 and the upper press plate 7.
  • the height of the jaws 10, 12 should be chosen so that its contact surface always covers the entire height of the side edges of the associated surface layer 2, 4.
  • each side shift 8 is able, in full contact with the associated side edge of the upper or lower surface layer 2, 4, both in the operating state of FIG. 2 and in that of FIG. 3 to stay.
  • FIG. 3 the two jaws 10, 12 are shown only schematically with their lowest possible height.
  • FIG. 4 an embodiment of FIG. 4 is preferred, in which two jaws 10 ', 12' are shown in a viewing direction that runs counter to direction a in FIG. 2:
  • the side jaws 10 ', 12' extend with theirs Contact surfaces essentially over the entire height of the free space between the two press plates 6, 7 in their end position according to FIG. 3, the two jaws 10 ', 12' being provided opposite one another with projections or complementary grooves 13 which thus engage in one another, that they prevent the relative displacement of the two jaws 10 ', 12' in their longitudinal direction.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Laminated Bodies (AREA)
EP86116673A 1985-12-02 1986-12-01 Presse pour la fabrication de panneaux de bois Expired EP0225577B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86116673T ATE44256T1 (de) 1985-12-02 1986-12-01 Presse zum herstellen einer massivholzplatte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853542543 DE3542543A1 (de) 1985-12-02 1985-12-02 Presse zum herstellen einer massivholzplatte
DE3542543 1985-12-02

Publications (2)

Publication Number Publication Date
EP0225577A1 true EP0225577A1 (fr) 1987-06-16
EP0225577B1 EP0225577B1 (fr) 1989-06-28

Family

ID=6287380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116673A Expired EP0225577B1 (fr) 1985-12-02 1986-12-01 Presse pour la fabrication de panneaux de bois

Country Status (4)

Country Link
EP (1) EP0225577B1 (fr)
AT (1) ATE44256T1 (fr)
DE (3) DE3542543A1 (fr)
FI (1) FI80842C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988000115A1 (fr) * 1986-06-24 1988-01-14 Friedrich Pfeifer Element transversal de compression

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010307C2 (de) * 1990-03-30 1999-02-25 Dieffenbacher Gmbh Maschf Verfahren zum Herstellen von Massivholzplatten
DE9107070U1 (de) * 1991-06-08 1991-08-29 Schürmann, Franz, 4650 Gelsenkirchen Vorrichtung für die Herstellung von plattenartigen Gegenständen mit einer Oberflächenbeschichtung und einer Plattenrandumleimung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1639083A (en) * 1926-11-04 1927-08-16 Central Door And Lumber Compan Panel clamp
DE890568C (de) * 1951-08-28 1953-09-21 Siemens Ag Druckkoerper fuer Verleimungspressen
DE1156963B (de) * 1960-03-23 1963-11-07 Ernst Hungerbuehler Hydraulische Fugenverleimpresse
DE2354465A1 (de) * 1973-10-31 1975-05-07 Wolfram Sielemann Vorrichtung zum verleimen und zusammenfuegen von moebelteilen zu einem moebelkorpus
CA1097193A (fr) * 1976-11-09 1981-03-10 Ewan R. Orr Methode et appareil de fabrication de produits en bois lamelle
CA1164020A (fr) * 1980-12-05 1984-03-20 Richard Braceland Gabarit de montage pour dessus de tables

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1639083A (en) * 1926-11-04 1927-08-16 Central Door And Lumber Compan Panel clamp
DE890568C (de) * 1951-08-28 1953-09-21 Siemens Ag Druckkoerper fuer Verleimungspressen
DE1156963B (de) * 1960-03-23 1963-11-07 Ernst Hungerbuehler Hydraulische Fugenverleimpresse
DE2354465A1 (de) * 1973-10-31 1975-05-07 Wolfram Sielemann Vorrichtung zum verleimen und zusammenfuegen von moebelteilen zu einem moebelkorpus
CA1097193A (fr) * 1976-11-09 1981-03-10 Ewan R. Orr Methode et appareil de fabrication de produits en bois lamelle
CA1164020A (fr) * 1980-12-05 1984-03-20 Richard Braceland Gabarit de montage pour dessus de tables

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988000115A1 (fr) * 1986-06-24 1988-01-14 Friedrich Pfeifer Element transversal de compression

Also Published As

Publication number Publication date
EP0225577B1 (fr) 1989-06-28
ATE44256T1 (de) 1989-07-15
DE8533874U1 (de) 1986-09-25
FI864894A0 (fi) 1986-12-01
FI80842C (fi) 1990-08-10
FI80842B (fi) 1990-04-30
DE3664117D1 (en) 1989-08-03
FI864894A (fi) 1987-06-03
DE3542543A1 (de) 1987-06-04

Similar Documents

Publication Publication Date Title
DE68907723T2 (de) Holzstruktur und rollenpresse dazu.
DE202005014132U1 (de) Paneel aus Holz
EP3563959A1 (fr) Dispositif de sciage
EP0437246B1 (fr) Presse pour la fabrication d'assemblages par dents collées
DE3633448A1 (de) Schneidvorrichtung
EP0910248A1 (fr) Procede, dispositif et outil de decoupage pour la production de morceaux de p te individuels a partir d'une bande de p te continue
DE3018985A1 (de) Verfahren und vorrichtung zum zersaegen von baumstaemmen in quaderfoermige zuschnitte
EP0225577B1 (fr) Presse pour la fabrication de panneaux de bois
EP0518217B1 (fr) Presse pour bois à lames pour la fabrication de poutres fermes collées et arguées
DE2411793A1 (de) Einrichtung zur gegenseitigen verbindung und halterung von platten
DE2518359A1 (de) Holzbearbeitungs-maschine
DE3809989A1 (de) Vorrichtung zur herstellung einer mehrschichtholzplatte
DE2729938C3 (de) Doppelbandpresse zum Herstellen von Preßplatten
DE4316368C2 (de) Verfahren zur Herstellung von beschichteten Tafelelementen
DE3120897A1 (de) "presse zum herstellen von holmen oder platten aus verleimten staeben"
DE2533149A1 (de) Lamellenverleimter holztraeger, verfahren zu seiner herstellung und einrichtung zur ausfuehrung des verfahrens
DE20118340U1 (de) Vorrichtung zum maßgenauen Schneiden von bandförmigen Materialien
DE2252920A1 (de) Verfahren zum herstellen von hohlprofilen, vorrichtung zum ausfuehren des verfahrens und mit dem verfahren hergestelltes hohlprofil
DE19810574B4 (de) Vorrichtung zur Betätigung von Pressen in Klemmeinrichtungen für den Zusammenbau von Möbelstücken
EP0358019B1 (fr) Procédé et dispositif de confection de couvertures de livres et similaires
DE3246720A1 (de) Vorrichtung fuer die manipulation von pressgut im zuge der herstellung und/oder verguetung von spanplatten, faserplatten u. dgl.
EP0938957B1 (fr) Dispositif permettant de realiser la couche supérieure de parquets finis laminés
CH624318A5 (en) Method and apparatus for bending a corrugated sheet and a corrugated sheet bent by this method
DE60106620T2 (de) Verfahren und vorrichtung zur herstellung einer fachteilung für behälter
DE3511957C2 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR IT LI LU SE

ITCL It: translation for ep claims filed

Representative=s name: BARZANO' E ZANARDO MILANO S.P.A.

EL Fr: translation of claims filed
17P Request for examination filed

Effective date: 19870805

17Q First examination report despatched

Effective date: 19880414

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR IT LI LU SE

REF Corresponds to:

Ref document number: 44256

Country of ref document: AT

Date of ref document: 19890715

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3664117

Country of ref document: DE

Date of ref document: 19890803

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: MASCHINENFABRIK J. DIEFFENBACHER GMBH & CO.

Effective date: 19900327

ITTA It: last paid annual fee
PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19920224

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19940621

Year of fee payment: 8

Ref country code: FR

Payment date: 19940621

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19940629

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19940630

Year of fee payment: 8

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19941201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19941202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19941231

EAL Se: european patent in force in sweden

Ref document number: 86116673.4

BERE Be: lapsed

Owner name: SCHACHT PETER

Effective date: 19941231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950831

EUG Se: european patent has lapsed

Ref document number: 86116673.4

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991125

Year of fee payment: 14

Ref country code: CH

Payment date: 19991125

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19991126

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051201