EP0822040A2 - Procédé et machine pour fabriquer des profils façonnées en contreplaqués incurvés - Google Patents

Procédé et machine pour fabriquer des profils façonnées en contreplaqués incurvés Download PDF

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Publication number
EP0822040A2
EP0822040A2 EP97202350A EP97202350A EP0822040A2 EP 0822040 A2 EP0822040 A2 EP 0822040A2 EP 97202350 A EP97202350 A EP 97202350A EP 97202350 A EP97202350 A EP 97202350A EP 0822040 A2 EP0822040 A2 EP 0822040A2
Authority
EP
European Patent Office
Prior art keywords
sheets
flexible pipes
press
overlaid
inflatable flexible
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Withdrawn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
EP97202350A
Other languages
German (de)
English (en)
Other versions
EP0822040A3 (fr
Inventor
Benigno De Zanet
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.)
Xiloform SpA
Original Assignee
Xiloform SpA
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 Xiloform SpA filed Critical Xiloform SpA
Publication of EP0822040A2 publication Critical patent/EP0822040A2/fr
Publication of EP0822040A3 publication Critical patent/EP0822040A3/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Withdrawn legal-status Critical Current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
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
    • B27D1/083—Presses specially designed for making the manufacture of shaped plywood articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/003—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by an elastic bag or diaphragm expanded by fluid pressure

Definitions

  • the present invention relates to a process and a machine for manufacturing shaped profiles in curved plywood.
  • the traditional process of manufacturing of shaped profiles (skirting boards or other) in curved plywood provides for the overlay of several flat sheets with interposed adhesive, that adhere together by means of an heated press which compresses said sheets one against the other, also determining the bending in function of the shape of the press itself.
  • said plurality of inflatable flexible pipes comprises a first set of inflatable flexible pipes acting on a counterpress to compress a central part of the overlaid wooden sheets against a flat central part of said press and a second set of inflatable flexible pipes acting on at least one side part of said overlaid sheets to force its bending and compression against a lateral part of said press.
  • Fig. 1 are schematically shown in perspective view a plurality of wooden flat sheets 1, between which a layer of adhesive at high temperature is interposed.
  • the flexible pipes 10 get inflated by means of supplying compressed air, thus determining the bending of the sides of sheets 1 against the oblique lateral parts 5 of the front of press 3, as shown in Fig. 4.
  • edges' bending can be modified by varying the front shape of press 3. In the same way a profile can be obtained curved or otherwise bended over one side only.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP97202350A 1996-07-31 1997-07-25 Procédé et machine pour fabriquer des profils façonnées en contreplaqués incurvés Withdrawn EP0822040A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI001644A IT1283377B1 (it) 1996-07-31 1996-07-31 Procedimento e macchina per la fabbricazione di profili sagomati in legno compensato curvato.
ITMI961644 1996-07-31

Publications (2)

Publication Number Publication Date
EP0822040A2 true EP0822040A2 (fr) 1998-02-04
EP0822040A3 EP0822040A3 (fr) 1999-03-24

Family

ID=11374724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97202350A Withdrawn EP0822040A3 (fr) 1996-07-31 1997-07-25 Procédé et machine pour fabriquer des profils façonnées en contreplaqués incurvés

Country Status (2)

Country Link
EP (1) EP0822040A3 (fr)
IT (1) IT1283377B1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB417078A (en) * 1932-09-02 1934-09-27 Friz Adolf Improvements in or relating to veneering presses
US2417226A (en) * 1944-03-13 1947-03-11 Superior Industries Device for molding of veneer structures
US2603579A (en) * 1948-05-10 1952-07-15 Mengel Company Apparatus for manufacturing plywood tubes
US2626642A (en) * 1948-08-13 1953-01-27 Romer G Weyant Plywood press
DE3017258A1 (de) * 1979-02-03 1981-11-12 Helmut Friz Gmbh & Co, 7102 Weinsberg Membranvorformeinrichtung
DE3017259A1 (de) * 1980-05-06 1981-11-12 Helmut Friz Gmbh & Co, 7102 Weinsberg Membranvorformeinrichtung
BE886215A (nl) * 1980-11-18 1981-05-18 Smeets & Co N V Inrichting voor het verwezenlijken van gebogen panelen

Also Published As

Publication number Publication date
EP0822040A3 (fr) 1999-03-24
ITMI961644A1 (it) 1998-01-31
IT1283377B1 (it) 1998-04-17
ITMI961644A0 (fr) 1996-07-31

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