EP0885100B1 - Dispositif de chargement pour presse a plateau - Google Patents

Dispositif de chargement pour presse a plateau Download PDF

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Publication number
EP0885100B1
EP0885100B1 EP97951060A EP97951060A EP0885100B1 EP 0885100 B1 EP0885100 B1 EP 0885100B1 EP 97951060 A EP97951060 A EP 97951060A EP 97951060 A EP97951060 A EP 97951060A EP 0885100 B1 EP0885100 B1 EP 0885100B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
loading
conveyor belts
press
feed bars
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
EP97951060A
Other languages
German (de)
English (en)
Other versions
EP0885100A1 (fr
Inventor
Hans Bohn
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.)
Robert Buerkle GmbH
Original Assignee
Robert Buerkle GmbH
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 Robert Buerkle GmbH filed Critical Robert Buerkle GmbH
Publication of EP0885100A1 publication Critical patent/EP0885100A1/fr
Application granted granted Critical
Publication of EP0885100B1 publication Critical patent/EP0885100B1/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
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/20—Moulding or pressing characterised by using platen-presses
    • B27N3/22—Charging or discharging

Definitions

  • the invention relates to the field of processing workpieces in a plate press, especially the loading of this plate press for the production of tempered chipboard.
  • a plate press especially the loading of this plate press for the production of tempered chipboard.
  • this will thereby achieved that the workpiece to be machined is not full-surface is placed on the press, but first with an edge and then with the other edge to create bubble-like effects avoid causing the workpiece to blur on the press lead and thus deteriorate the exact positioning mentioned or make it impossible.
  • DE 28 47 273 C3 is a generic loading device described, provided in the terminal blocks as holding devices are in the storage position of the workpiece to be processed opened and pulled outwards so that the workpiece down into the press (usually on the lower heating plate) can fall.
  • the ones opened when the workpiece is placed down This should prevent or at least prevent friction from occurring can be minimized by providing additional casters on which the workpiece to be machined moves apart the loading spars are put down.
  • Holding devices e.g. Terminal strips to be omitted here the workpiece to be machined lies directly on the loading bars on which are provided with holes through which during of the transport process, the workpiece to be machined is sucked in and via the air flow during the depositing process upwards to the workpiece is blown so that the workpiece is on an air cushion swims.
  • a loading device is known with the help of which a layer package is placed in a hot press and removed again can.
  • Two taped devices are used to carry out this process, the speed of the top of the tapes being either by a Motor drive or kept constant by jamming with respect to the press is so that the positioning of the layer package during the filing process remains fixed.
  • the loading devices described have in common that despite of the additional facilities mentioned is insufficient or insufficient ensures that there is no sliding friction between the Workpiece and the one used for conveying and storing specific system that grips under the workpiece and this wearing.
  • the workpiece is always placed on one side, so that do not form air pockets on which the workpiece can blur.
  • this has the consequence that the charging bars moved outwards one after the other when the workpiece was put down have to be, i.e. only then can the second loading spar its release movement begins when the first loading spar has already left the area of the workpiece and this with the corresponding edge has reached the press.
  • the invention is therefore based on the task, the generic Feed device so that when placing the Workpiece, for example a layer package on the heating plate, no sliding friction occurs, this feed device should continue be mechanically simple.
  • this object is according to the characterizing part of claim 1 solved.
  • these conveyor belts mechanically with the Coupling movement of the loading spars so that the peripheral speed the two pulleys that carry the conveyor belt, is chosen so that the movement of the loading spars upper run of the conveyor belts at the same speed in the opposite direction moves, so consequently the absolute speed a point on the conveyor belt and thus also the Relative speed, based on the workpiece at rest Is zero.
  • the solution according to the invention makes it possible in particular for the two To control loading spars so that when you put down the workpiece on the lower heating plate of the press cause that from the reasons described above required tilt-like laying movement the workpiece is laterally minimized on the press, so that the desired full-surface contact of the underside of the workpiece with the heating plate in the shortest possible time.
  • the loading device according to the invention is used for loading a press 10 (Fig. 4.5), of which only the lower part with the lower heating plate 1 is shown.
  • a press 10 Fig. 4.5
  • To this lower heating plate should the workpiece 8 from its position outside the press promoted and stored there as precisely as possible.
  • a holding frame 2 is provided, which in its Press moved position to both sides of the lower heating plate 1 extends and on which the loading device with its individual Components is held.
  • the main components of this loading device are two slidable parallel to the long sides of the holding frame 2
  • Loading bars 3A, 3B. 1 is the loading spar 3A shown extended, i.e. it does not protrude the lower heating plate 1, whereas the loading handle 3B is retracted is shown, i.e. it protrudes over the lower heating plate 1.
  • the loading bars 3A, 3B are in a known manner with the holding frame 2 connected by two tubes or rods R, which are stored in corresponding receptacles S of the holding frame.
  • the rods R of the loading bars 3A, 3B contribute to their Inside the press pointing end holding devices on which the workpiece 8 to be machined rests when both loading spars are in the retracted position (Fig. 5), in the workpiece 8 also from a loading station into the press 10 can transport.
  • the holding devices consist of several conveyor belts 4, the upper run over the feed bars 3A, 3B. For this is on the narrow side of the loading spars pointing outwards 3A, 3B, a deflection roller 4A is provided, on the one pointing inwards
  • the end of the loading bars 3A, 3B are the conveyor belts 4 over a common drive shaft 5 out.
  • the function of this drive is illustrated in Fig. 3:
  • the diameter of the gear 7 is chosen so that the conveyor belts 4 against the movement of the loading spars 2 with the same Promote speed as the loading spars face outwards move so that the movement of the loading bars 3A, 3B to none Friction between the upper run of the conveyor belts 4 and Bottom of the workpiece 8 leads, regardless of which Speed or direction the loading bars move.
  • a typical sequence of movements of the loading device according to the invention is as follows:
  • the holding frame 2 is outside of the press in a loading station, where the loading bars 3A, 3B under the workpiece drive in to this from other conveyors, for example a roller conveyor.
  • the holding frame 2 is inserted into the press 10 until it occupies the desired position in which the workpiece 8 is above the lower heating plate 1 is held by the retracted Loading bars 3A, 3B, this position is in Fig. 5 shown.
  • the workpiece 8 is placed on the lower heating plate 1 in that the two loading spars with a slight delay 3A, 3B are extended (large arrows in FIG. 4), whereby according to the above-described positive coupling of the drive the conveyor belts 4 the upper run of these conveyor belts in the moves in the opposite direction (small arrows) with the same speed at which the loading bars extend be so that between the upper run of the conveyor belts on the one hand and the underside of the workpiece 8 no relative movement and thus can also form no friction.
  • the loading spar 3B hurries slightly ahead of the feeder spar 3A, so that the long side on the right in FIG.
  • the exemplary embodiment shown is for mechanical positive coupling the conveyor belts 4 with their associated loading bars 3A, 3B preferred the rack and gear combination described, however, it is just as possible to do this using a designed process Chain with sprockets or with belts and pulleys to reach.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Advancing Webs (AREA)
  • Press Drives And Press Lines (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Claims (4)

  1. Dispositif de chargement pour une presse à plateau comportant des agencements de transport qui maintiennent par le bas la pièce à traiter (8) sur ses deux côtés, présentant en outre un châssis de retenue (2) en forme de fourche, mobile dans la direction de transport sur la presse à plateau et sur lequel sont disposés deux longerons de chargement (3A, 3B), déplaçables perpendiculairement à la direction de transport et présentant chacun au moins deux agencements de retenue (4A, 4B) par lesquels la pièce est maintenue dans la zone de ses deux côtés par rapport à la direction de transport et déposée dans la presse à plateau, caractérisé en ce que les agencements de retenue se composent de bandes transporteuses (4), de rouleaux de transport ou de cylindres de transport, disposés dans la direction de déplacement des longerons de chargement (3A, 3B) qui leur sont associés et sur les brins supérieurs/côtés supérieurs desquels repose la pièce (8) dans la position rentrée dans la presse à plateau des longerons de chargement (3A, 3B), et que les bandes transporteuses/rouleaux de transport/cylindres de transport sont couplés mécaniquement de force avec le mouvement du longeron de chargement (3A, 3B) correspondant de telle sorte que la vitesse relative de chaque brin supérieur/côté supérieur, par rapport à la pièce (8), est égale à zéro pour tous les états de déplacement du longeron de chargement (3A, 3B) qui lui est associé.
  2. Dispositif de chargement suivant la revendication 1, caractérisé en ce qu'il est prévu une crémaillère (6A, 6B) pour le couplage forcé, qui est montée sur l'extrémité côté frontal (2A) du châssis de retenue (2) des longerons de chargement (3A, 3B) et qui engrène avec une roue dentée (7) qui est assemblée fixement avec l'arbre moteur commun (5A, 5B) des bandes transporteuses (4) d'un longeron de chargement (3A, 3B).
  3. Dispositif de chargement suivant la revendication 1, caractérisé en ce que les bandes transporteuses (4) défilent sur deux poulies de renvoi (4A, 4B) qui sont maintenues de part et d'autre du longeron de chargement (3A, 3B) correspondant, et dont l'une repose sur l'arbre moteur (5).
  4. Procédé d'exploitation d'un dispositif de chargement d'une presse à plateau comportant des agencements de transport qui maintiennent par le bas la pièce à traiter, auxquels s'ajoutent deux longerons de chargement déplaçables perpendiculairement à la direction de transport, qui comportent chacun comme agencements de retenue au moins deux bandes transporteuses/rouleaux de transport ou cylindres de transport, sur les brins supérieurs/côtés supérieurs desquels repose la pièce (8) à traiter dans la position rentrée des longerons de chargement (3A, 3B), le dépôt dans la presse (10) de la pièce (8) à traiter étant assurée de telle sorte que les deux longerons de chargement (3A, 3B) sont commandés avec une temporisation qui est calculée de telle sorte que les deux longerons de chargement (3A, 3B) sortent à peu près en même temps, tandis que les bandes transporteuses (4) des deux longerons de chargement (3A, 3B) maintiennent la pièce par le bas (8).
EP97951060A 1996-11-16 1997-11-11 Dispositif de chargement pour presse a plateau Expired - Lifetime EP0885100B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19647480 1996-11-16
DE19647480A DE19647480C1 (de) 1996-11-16 1996-11-16 Beschickungsvorrichtung für eine Plattenpresse
PCT/DE1997/002628 WO1998022268A1 (fr) 1996-11-16 1997-11-11 Dispositif de chargement pour presse a plateau

Publications (2)

Publication Number Publication Date
EP0885100A1 EP0885100A1 (fr) 1998-12-23
EP0885100B1 true EP0885100B1 (fr) 2002-05-15

Family

ID=7811884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97951060A Expired - Lifetime EP0885100B1 (fr) 1996-11-16 1997-11-11 Dispositif de chargement pour presse a plateau

Country Status (6)

Country Link
US (1) US6065584A (fr)
EP (1) EP0885100B1 (fr)
AT (1) ATE217569T1 (fr)
CA (1) CA2242427C (fr)
DE (2) DE19647480C1 (fr)
WO (1) WO1998022268A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201413A1 (de) * 2002-01-15 2003-07-24 Buerkle Gmbh Robert Verfahren und Vorrichtung zum Beschicken einer Plattenpresse
DE10325879A1 (de) * 2003-03-21 2004-11-18 Grob-Werke Burkhart Grob E.K. Beweglicher Transportbalken
DE102011008650A1 (de) * 2011-01-14 2012-07-19 Robert Bürkle GmbH Verfahren zum Durchführen einer Bandlaufkorrektur bei einem Förderband einer Presse und Presse mit Förderband und Bandlaufkorektur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825206C2 (de) * 1978-06-08 1981-10-01 Maschinenfabrik J. Dieffenbacher Gmbh & Co, 7519 Eppingen Vorrichtung zum Einbringen, Verpressen und Ausbringen eines Schichtpaketes in eine Heißpresse bzw. aus einer Heißpresse
DE2825296A1 (de) * 1978-06-09 1979-12-13 Basf Ag Verfahren zur quaternierung von organischen farbstoffbasen
DE2847273C3 (de) * 1978-10-31 1981-10-08 G. Siempelkamp Gmbh & Co, 4150 Krefeld Plattenpresse mit einer Vorrichtung zum Beschicken der Presse im Zuge der Herstellung von vergüteten Spanplatten
DE3001010A1 (de) * 1980-01-12 1981-07-16 Maschinenfabrik J. Dieffenbacher Gmbh & Co, 7519 Eppingen Beschick- und entleervorrichtung zum ein- und ausbringen eines presspaketes in eine bzw. aus einer presse
DE3503156C1 (en) * 1985-01-31 1987-01-02 Wemhoener Heinrich Gmbh Co Process and device for feeding short-cycle presses
DE3914866C2 (de) * 1989-05-05 1996-11-14 Dieffenbacher Gmbh Maschf Vorrichtung zum Einbringen, Verpressen und Ausbringen eines Schichtpaketes in eine Heißpresse
US6009990A (en) * 1998-01-20 2000-01-04 Davis; William P. Pallet transfer and clamping unit

Also Published As

Publication number Publication date
DE19647480C1 (de) 1998-05-07
CA2242427C (fr) 2003-02-11
EP0885100A1 (fr) 1998-12-23
CA2242427A1 (fr) 1998-05-28
US6065584A (en) 2000-05-23
ATE217569T1 (de) 2002-06-15
DE59707287D1 (de) 2002-06-20
WO1998022268A1 (fr) 1998-05-28

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