Abstract:
The method for forming surface-engraved panels clad with a sheet of thermodeformable material, particularly PVC, comprises a preliminary stage of engraving the surface of a chipboard substrate to obtain cavities therein in accordance with a predetermined design and a subsequent stage in which an adhesive is spread over said surface followed by a sheet of thermodeformable material which covers said cavities, and is characterised in that the panel (6) prepared in this manner is passed through at least one pair of rollers (7,8), of which the roller (8) in contact with said surface is formed of elastically yieldable material which causes the sheet of thermodeformable material, previously heated until soft, to penetrate into said cavities.
Abstract:
A process for forming MDF/chipboard furniture panels provided with an embedded handle, characterised by: - forming in the exposed surface of the panel a substantially parallelepiped first cavity (4) having dimensions greater than the handle dimensions, - inserting a block (6) into said first cavity (4), - applying an HDF cover (8) to said surface, - subjecting the cover and part of the block to pantograph-milling to define a substantially parallelepiped second cavity (10) of smaller dimensions than the first cavity (4), - applying a cladding sheet (12) of polymer material to the panel surface and to the interior of said second cavity (10) by thermoforming, - performing a pantograph-milling operation to remove the cladding sheet (12) covering the base and the sides of the cavity to form the handle grips.
Abstract:
L'invention concerne un appareil, servant à recouvrir une surface et les bords de panneaux en bois avec une feuille en matériau plastique thermodéformable, du type à utiliser dans une presse avec un lit inférieur chauffé en matériau élastiquement flexible et avec un plateau supérieur rigide, la distance entre le lit inférieur et le plateau supérieur étant variable entre une valeur maximum, qui permet d'interposer la feuille de matériau thermodéformable, les panneaux à recouvrir, les organes de retenue et les organes d'espacement, et une valeur minimum à laquelle s'effectue l'étape de pressage. L'appareil se caractérise en ce qu'il comprend: une plaque électromagnétisable (10) qui est destinée à être assujettie au plateau supérieur (2) de la presse (1) et qui comporte des trous reliés à un réseau d'aspiration (13); plusieurs organes d'espacement (18), qui sont pourvus d'au moins une partie (19) à structure en matériau ferromagnétique et magnétiquement attaché à la plaque (10), lorsque celle-ci est magnétisée, et qui comportent chacun au moins un trou (21), qui, lorsque l'organe d'espacement est attaché à la plaque (10), communique avec au moins un trou (11) ménagé dans la plaque, ainsi qu'un organe d'étanchéité (20) entourant le trou (21); plusieurs organes de retenue (22) qui sont pourvus d'au moins une partie en matériau ferromagnétique et qui peuvent être attachés à la plaque (10), comme dans le cas des organes d'espacement (18); un transporteur (24) servant à transporter les feuilles stratifiées en plastique déformable (9) depuis une position située à l'extérieur de la presse (1) jusqu'à une position située à l'intérieur de la presse, et qui est équipé d'un organe (31) de préhension et de décharge des feuilles (9); un gabarit (33) qui sert à effectuer le positionnement des panneaux (8) à recouvrir et qui présente des sièges destinés à recevoir ces panneaux dans des positions correspondantes aux organes d'espacement (18) placés sur la plaque (10); ainsi qu'un organe (24), qui sert à transférer le gabarit de
Abstract:
A composite thermoplastic continuous laminate, particularly for cladding flat or shaped panels of wooden material, characterised by comprising a through-coloured lower layer (2), an intermediate layer (4) of transparent material, and a through colored upper layer (6, 10) of different colour and/or characteristics from those of the lower layer.
Abstract:
An apparatus for covering a surface and the edges of panels of wooden material with a sheet of thermodeformable plastic material, of the type for application to a press with a lower heated bed of elastically yieldable material and a rigid upper platen, the distance of which from the lower bed is variable between a maximum value which enables said sheet of thermodeformable material, the panels to be covered, the retainers and the spacers to be interposed, and a minimum value at which the pressing stage is effected, characterised by comprising: an electromagnetizable plate (10) to be securely fixed to the upper platen (2) of the press (1) and comprising holes connected to a suction network (13); a plurality of spacers (18) provided with at least one portion (19) of ferromagnetic material construction and magnetically attached to said plate (10) when this is magnetized, each spacer (18) comprising at least one hole (21) which when said spacer is attached to said plate (10) communicates with at least one hole (11) provided therein, and seal means (20) surrounding said hole (21); a plurality of retainers (22) provided with at least one ferromagnetic material portion and attachable to said plate (10), as in the case of said spacers (18); a conveyor (24) for conveying thermodeformable plastic laminate sheets (9) from a position outside said press (1) to a position within it, said conveyor (24) being provided with means (31) for picking up and discharging said sheets (9); a jig (33) for positioning a plurality of panels (8) to be covered and provided with seats for these latter in positions corresponding with said spacers (18) on said plate (10); and means (24) for transferring said positioning jig (33) from the outside to the inside of the press (1) and for raising it when inside the press, in order to bring the panels (8), located in their respective seats, into contact with the corresponding spacers (18).
Abstract:
An apparatus for covering a surface and the edges of panels of wooden material with a sheet of thermodeformable plastic material, of the type for application to a press with a lower heated bed of elastically yieldable material and a rigid upper platen, the distance of which from the lower bed is variable between a maximum value which enables said sheet of thermodeformable material, the panels to be covered, the retainers and the spacers to be interposed, and a minimum value at which the pressing stage is effected, characterised by comprising: a frame (10) of spacers (11) removably attachable to the upper platen (2) of the press (1); a plurality of spacers (11) applied to said frame (10), each spacer (11) being provided with at least one hole (12) connecting its lower surface to a suction circuit (13) connected said frame (10), and seal means (14) surrounding said hole; a conveyor (19) for conveying thermodeformable plastic laminate sheets (8) from a position outside said press (1) to a position within it, said conveyor being provided with means (25) for picking up and discharging said sheets (8); a jig (27) for positioning a plurality of panels (7) to be covered, and provided with said spacers (11) on said frame (10); and means (19) for transferring said positioning jig (27) from the outside to the inside of the press (1) and for raising it when inside the press, in order to bring the panels (7), located in their respective seats, into contact with the corresponding spacers (11).