EP0396072B1 - Machine pour assembler du placage - Google Patents

Machine pour assembler du placage Download PDF

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Publication number
EP0396072B1
EP0396072B1 EP90108180A EP90108180A EP0396072B1 EP 0396072 B1 EP0396072 B1 EP 0396072B1 EP 90108180 A EP90108180 A EP 90108180A EP 90108180 A EP90108180 A EP 90108180A EP 0396072 B1 EP0396072 B1 EP 0396072B1
Authority
EP
European Patent Office
Prior art keywords
machine
veneer
strips
veneer according
pressure
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
EP90108180A
Other languages
German (de)
English (en)
Other versions
EP0396072A2 (fr
EP0396072A3 (fr
Inventor
Theo Grönebaum
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.)
Heinrich Kuper GmbH and Co KG
Original Assignee
Heinrich Kuper GmbH and Co KG
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 Heinrich Kuper GmbH and Co KG filed Critical Heinrich Kuper GmbH and Co KG
Publication of EP0396072A2 publication Critical patent/EP0396072A2/fr
Publication of EP0396072A3 publication Critical patent/EP0396072A3/fr
Application granted granted Critical
Publication of EP0396072B1 publication Critical patent/EP0396072B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1715—Means joining indefinite length work edge to edge

Definitions

  • the invention relates to a veneer splicing machine with transport means mounted in a machine frame and a pressure stamp with heating device, which is arranged so as to be able to butt glue end edges of adjacent veneers so as to be displaceable perpendicularly thereto.
  • the feed rollers or rollers are rotatably mounted on a lower stationary table, by means of which the incoming veneers are pressed into the machine and pressed against the rear end edge of a previous veneer sheet. It is also known to arrange a counter-pressure roller or the like in the machine upper part in order to ensure a sufficient advance of the incoming veneer.
  • the object of the invention is to provide a generic veneer splicing machine with an upper counter-pressure roller, which with its The circumference resiliently touches the surface of the incoming veneer and thus avoids the disadvantages of known machines.
  • the storage of such a counter-pressure roller within a vertically displaceable pressure stamp should be improved in such a way that it adjusts itself delicately to the surface of the adjacent veneers in order to press them and to activate their glue for glue gluing.
  • this object is achieved in a veneer assembly machine of the aforementioned type by the characterizing features of claim 1.
  • the surface (the casing) of the counterpressure roller can thus be spaced apart within certain limits with respect to the inner drive shaft, so that the surface responds sensitively to different thicknesses of incoming veneers.
  • a device for transmitting the circumferential force emanating from the drive shaft to the outer tube is provided between the inner drive shaft and the outer tube.
  • two longitudinal grooves running parallel to the longitudinal side of the tube, which are opposite each other in mirror image, are provided, and the drive shaft has through-bores through which a driving pin is inserted, the tip of which engages in at least one longitudinal groove.
  • the protection extends not only to the individual features, but also to their combination.
  • a device for assembling veneers has a lower stationary table (10) and an upper pressure stamp (11).
  • This transport roller (13) is constructed in a known and customary manner, so that a further description is unnecessary
  • the pressure stamp (11) can be moved in the vertical direction in order to convey or insert a veneer (16) introduced in the transport direction A to pinch.
  • the table (10) and the pressure plunger (11) each have a heating device (14, 15), each of which can also be moved vertically on its own or together, so that it touches the front edge area of the adjacent veneers (16) Veneer sheet (16) can be moved to glue by means of pressure and heat.
  • An outlet conveyor belt (20) connects to the outlet side of the table (10) in an analogous manner in order to remove the veneer sheets glued together.
  • the transport or pressure roller (13) is mounted on the table (10) and is driven by a drive, not shown.
  • the entire counter-pressure roller (12) is formed by a plurality of individual pressure rollers (22) mounted one behind the other at a distance from one another around a central drive shaft (21).
  • the shaft (21) is connected (in a manner not shown) to a drive, so that it can be rotated clockwise as shown.
  • Each individual pressure roller (22) is a tube with a circular cross-section, from the inner surface of which two longitudinal grooves (23), which run parallel to the longitudinal axis of the tube and are opposite each other in mirror image, point out over the entire length of the tube to the outside of the outer tube surface.
  • the shaft (21) is arranged in the tube, on the one hand mounted on the end face (not shown), on the other hand connected to a drive (also not shown) on the end face. It points to the part of its length, each of the circular tube is surrounded by two through bores (24) at a right angle to one another to the longitudinal axis of the shaft. Through these holes (24) - with play - drive pins (25) are inserted, the length of which is slightly less than the distance from the bottom of the longitudinal groove to the bottom of the longitudinal groove.
  • the width of the two opposing longitudinal grooves (23) is larger (about two to three times) than the diameter of the driving pin (25). Since the diameter of the shaft (21) is smaller than the inside diameter of the roller (22), a coaxial position of the shaft (21) and roller (22) results in a uniform free space running in a ring, axially and radially between the outer surface of the shaft and the inner roller (26).
  • the individual pressure rollers (22) of the counter-pressure roller (12) can individually adapt to the different veneer thicknesses along a veneer sheet. This ensures continuous transport and pressure of the veneer sheet against the previous one, with a larger veneer thickness overall, the counterpressure roller (12) is also arranged correspondingly higher than a smaller one.
  • the device for assembling veneers works as follows:
  • a wide pre-glued veneer sheet (16) is introduced, whereby additional stop pins (27), which are mounted on the table (10), can be moved upwards to the veneer sheet (16) or to position its rear edge exactly.
  • a veneer is then fed via the infeed conveyor belt (19) and the transport or pressing roller (13), which, after the stop pins (27) have been removed from the transport path, against the already existing veneer sheet (16) and by means of brake stamps ( 17) is brought to the plant.
  • a horizontal shaft is formed between the heating devices, in which the following veneer is pressed firmly against the previous veneer sheet by means of a transport or pressure roller (13) and counter-pressure roller (12).
  • the upper and lower heating devices (14, 15) are then activated with pressure and heat in order to bond the adhesive applied to the adhesive edge of the new veneer to the other veneer sheet (16) when the new veneer is transported to it.
  • the necessary contact pressure between the veneers is generated and maintained by the transport or contact roller (13) and the associated counter-pressure roller (12). After a predetermined exposure time, the interconnected veneer sheets (16) are released and transported onward.
  • the movability of the heating devices (14, 15) of the pressure plunger (11) and table (10) and of the profile tube (28) arranged above them, which corresponds approximately to the working width of the device, can be achieved in a known manner by drive elements such as B. pressure medium cylinder (29) and / or connecting rod (not shown) and / or rack (also not shown) o.
  • the profile tube (28), which extends in the transverse direction, is height-adjustable in larger areas by means of a lifting device, not shown.
  • These guide strips (30) hold at their lower ends the block-shaped pressure stamp (11), in which - as already described - the counter-pressure roller (12) is eccentrically mounted on the one-side.
  • This pressure stamp (11) clamps with greater force both the incoming veneer and the veneer sheet that has already passed through on the table (10), the stop pins (27) being lowered downward and the adjacent end edges of the veneer or veneer sheet approaching one another to have.
  • the brake plunger (17) has also been lowered as a result.
  • the block-shaped pressure stamp has a central and slot-like opening (34), in which a heating plate (32) is mounted separately, which can be moved vertically by means of a lifting rod (33) with a separately controlled lifting cylinder (29 b) or the like.
  • the narrow heating plate (32) presses on this end edge region, so that the gluing takes place under a certain pressure and heat.
  • the pressure stamp (11) moves upwards and releases the inlet gap.
  • the pressure stamp (11) can be firmly screwed to the two guide strips (30); these two parts can also consist of a workpiece.
  • the pressure stamp (11) can be divided in its middle in its longitudinal direction and thus be in two pieces and accommodate the heating device in the middle between them.
  • the height movement of each part of the pressure stamp (11) can be controlled differently with the respective guide bar (30).

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)

Claims (14)

  1. Machine pour assembler du placage comportant
    - des moyens de transport (19, 20) pour placages (16) montés dans un bâti de machine, et
    - un poinçon de compression (11)
    qui est disposé à l'endroit des arêtes frontales à coller bout à bout de placages (16) adjacents,
    qui est pourvu de dispositifs de chauffage (14, 15), et
    dans lequel est disposé un cylindre de contre-pression (12) qui présente un arbre d'entraînement (21) ainsi qu'un tube extérieur (22), comme enveloppe, dont la surface se trouve dans le plan de la face du poinçon de compression (11) ou est quelque peu en saillie par rapport à celui-ci,
    caractérisé en ce que :
    - le tube extérieur (22) formant l'enveloppe est maintenu à une distance variable de l'arbre d'entraînement intérieur (21),
    - l'enveloppe (22) est montée avec un jeu, flottante dans la direction de la force de compression, sur l'arbre d'entraînement (21) et produit la pression de compression sur le matériau (16), et
    - il est prévu un dispositif (23, 24, 25) de transmission du couple de l'arbre d'entraînement (21) au tube (22).
  2. Machine pour assembler du placage suivant la revendication 1, caractérisée en ce que du côté intérieur du tube (22) sont prévues deux rainures longitudinales (23) opposées en forme d'image-miroir et s'étendant parallèlement au côté longitudinal du tube et en ce que l'arbre d'entraînement (21) disposé dans le tube (22) présente plusieurs alésages de passage (24) espacés d'une certaine distance l'un de l'autre et s'étendant à angle droit par rapport à l'axe longitudinal de l'arbre, dans chacun desquels est inséré une cheville d'entraînement (25) dont la longueur est légèrement inférieure à la distance d'un fond de rainure longitudinale à l'autre fond de rainure longitudinale.
  3. Machine pour assembler du placage suivant l'une des revendications 1 ou 2, caractérisée en ce que la largeur des deux rainures longitudinales (23) opposées l'une à l'autre est supérieure au diamètre de la cheville d'entraînement (25).
  4. Machine pour assembler du placage suivant l'une des revendications 1 à 3, caractérisée en ce que le cylindre de contre-pression (12) est formé de plusieurs cylindres de pression séparés disposés individuellement l'un derrière l'autre, à une distance l'un de l'autre, sur un arbre d'entraînement central (21).
  5. Machine pour assembler du placage suivant l'une des revendications 1 à 4, caractérisée en ce qu'entre l'arbre d'entraînement (21) et la face intérieure du tube (22) est prévu un espace libre (26) annulaire s'étendant de manière axiale et radiale.
  6. Machine pour assembler du placage suivant l'une des revendications 1 à 5, caractérisée en ce que le cylindre de contre-pression (12) est monté dans le poinçon de compression (11) rotatif dans un espace de support, de manière excentrique du côté entrée.
  7. Machine pour assembler du placage suivant l'une des revendications 1 à 6, caractérisée en ce que le poinçon de compression (11) est monté de manière déplaçable dans le bâti de machine.
  8. Machine pour assembler du placage suivant l'une des revendications 1 à 7, caractérisée en ce que le poinçon de compression (11) est pourvu de bandes de guidage latérales (30) qui sont adjacentes à un profilé transversal traversant (28) dans le bâti de machine.
  9. Machine pour assembler du placage suivant l'une des revendications 1 à 8, caractérisée en ce que les bandes de guidage (30) sont montées de manière mobile à l'aide d'un dispositif de levage (29 a).
  10. Machine pour assembler du placage suivant l'une des revendications 1 à 9, caractérisée en ce que le profilé transversal (28) est monté de manière mobile dans le bâti de machine, à l'aide d'un dispositif de levage séparé.
  11. Machine pour assembler du placage suivant l'une des revendications 1 à 10, caractérisée en ce que le poinçon de compression (11) présente une ouverture centrale (34) dans laquelle un bloc chauffant (32) est monté de manière déplaçable avec suspension élastique.
  12. Machine pour assembler du placage suivant l'une des revendications 1 à 11, caractérisée en ce que le bloc chauffant (32) est monté de manière réglable en hauteur à l'aide d'un dispositif de levage (29 b).
  13. Machine pour assembler du placage suivant l'une des revendications 1 à 12, caractérisée en ce qu'à l'endroit du bloc chauffant (32) est montée, de manière mobile, une goupille de butée (27) escamotable dans la table.
  14. Machine pour assembler du placage suivant l'une des revendications 1 à 13, caractérisée en ce que le poinçon de compression (11) est divisé longitudinalement.
EP90108180A 1989-05-02 1990-04-28 Machine pour assembler du placage Expired - Lifetime EP0396072B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8905533U DE8905533U1 (de) 1989-05-02 1989-05-02 Furnier-Zusammensetzmaschine
DE8905533U 1989-05-02

Publications (3)

Publication Number Publication Date
EP0396072A2 EP0396072A2 (fr) 1990-11-07
EP0396072A3 EP0396072A3 (fr) 1991-08-28
EP0396072B1 true EP0396072B1 (fr) 1994-02-02

Family

ID=6838882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90108180A Expired - Lifetime EP0396072B1 (fr) 1989-05-02 1990-04-28 Machine pour assembler du placage

Country Status (4)

Country Link
US (1) US5310444A (fr)
EP (1) EP0396072B1 (fr)
DE (2) DE8905533U1 (fr)
ES (1) ES2050868T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8905533U1 (de) * 1989-05-02 1989-08-31 Heinrich Kuper GmbH & Co KG, 4835 Rietberg Furnier-Zusammensetzmaschine
JP4960110B2 (ja) * 2006-04-19 2012-06-27 スミダコーポレーション株式会社 トランス装置及びその駆動回路

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604128A (en) * 1948-09-07 1952-07-22 Buss Machine Works Planer feed roll
GB745453A (en) * 1953-06-25 1956-02-29 Gerardus Johannes Maria Kok Improvements in or relating to the edgewise joining of sheets
DE949433C (de) * 1953-06-30 1956-09-20 Hans Roever Maschine zum Zusammensetzen und Verbinden von Holzfurnieren oder anderen flaechigen Werkstuecken
DE1152527B (de) * 1960-05-27 1963-08-08 Hans Roever Maschine zum Zusammensetzen und Verbinden von Holzfurnieren oder anderen flaechigen Werkstuecken
CH429121A (de) * 1965-06-04 1967-01-31 Fischer Ag Brugg Georg Furnier-Beschickungseinrichtung für eine Furnierzusammensetzmaschine zum Verleimen von Furnieren
GB1546778A (en) * 1975-06-10 1979-05-31 Agfa Gevaert Rotatable pressure means with adjustable pressure length
CH659617A5 (de) * 1983-05-04 1987-02-13 Fischer Ag Brugg Georg Einrichtung zum zusammensetzen und verbinden von flaechigen werkstuecken.
NL8303102A (nl) * 1983-09-07 1985-04-01 Het Noorden Ingbureau Lamineerinrichting.
FI75407C (fi) * 1986-11-21 1988-06-09 Valmet Oy Foerfarande i en boejningsreglerad vals och valsanordning foer tillaempning av foerfarandet.
DE8905533U1 (de) * 1989-05-02 1989-08-31 Heinrich Kuper GmbH & Co KG, 4835 Rietberg Furnier-Zusammensetzmaschine

Also Published As

Publication number Publication date
ES2050868T3 (es) 1994-06-01
EP0396072A2 (fr) 1990-11-07
US5310444A (en) 1994-05-10
DE8905533U1 (de) 1989-08-31
DE59004466D1 (de) 1994-03-17
EP0396072A3 (fr) 1991-08-28

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