FR2646806A1 - APPARATUS FOR POST-FORMATION OF LAMINATED SHEETS AND THE LIKE - Google Patents

Abstract

The apparatus comprises an elongated chamber 1 of square section, with thermally conductive walls, inside which is mounted a longitudinal heating element 5, which chamber is surrounded on the outside along three of its walls by a layer 2 of thermally material. insulation provided with a resistant outer protective covering 3, the insulation-free wall 4 defining a heating surface on which the laminate to be post-formed is applied, the assembly being mounted, via the wall opposite to that 4 which defines the heating surface, on a rigid longitudinal support 7.

Description

Apparatus for dost-forming laminated laminates and the like

  The invention relates to an apparatus for post-forming sheets.

  laminate and similar tees, allowing the molding of these laminates for applying them to angled surfaces,

with sharp or rounded edges.

  Laminated laminates are used, for example, for covering wooden panels or the like. Due

  of the rigid nature of these laminates, they cannot be.

  applied under normal temperature conditions only on flat surfaces, and it is necessary, if we want to cover the edges of the panels, to apply on them

cover strips.

  Due to the nature of the laminated laminates, they are obtained by heating them to a certain temperature.

  softening which allows their conformation. This district-

  tance opens the possibility of covering the surface of a panel and the adjacent edges with the same laminate,

  conforming it beforehand, to obtain at least the overlap

  really song or visible songs.

  The problem with this operation stems from the fact that the heated area must be straight and very long, so that the devices for applying point heat

cannot be used.

  The object of the present invention is to develop an apparatus of simple structure and operation, by means of which it is possible to apply to laminated laminates the heat necessary to allow their conformation, along a straight area of the desired length, of so that we can obtain the molding or the curvature according to the desired radius, in order to cover the edges of the panels on which we

  apply laminate, plastic, PVC or similar.

  The apparatus according to the invention makes it possible to have a planar element for applying heat, of a length adapted to the needs, on which there are the areas of the laminate which it is desired to fold, to allow its softening and thus facilitate the molding or bending operation. According to the invention, the apparatus consists of a chamber

  elongated, preferably square section, with thermal walls-

  conductive, in which is mounted a heating element

  longitudinal phantom. This heating element can consist of electrical resistors or tubes or coils

  through which a high temperature fluid circulates.

  The chamber is surrounded externally, along three of its walls, by a layer of thermally insulating material, provided with an external protective covering. The insulation-free wall defines a heating surface

  to which the post-forming laminate is applied.

  The chamber described, its insulation and the heating elements are mounted, through the wall opposite to that which defines

  the heating surface, on a longitudinal support

  as long, which can be constituted for example by a double T profile, on two of the wings of which the elongated chamber is fixed by means of screws, with interposition of sleeves

  insulators. Via the other two copla- wings

  The longitudinal support can be mounted on a support structure or bench to which an upper table is assembled which is coplanar with the heating surface.

  of the room, as well as air blowers for cooling

longitudinal support.

  Other characteristics and advantages of the invention stand out

  derive from the detailed description below of an example

  non-limiting, and appended drawings in which: - Figure 1 is a perspective view showing the heating chamber cut transversely; and FIG. 2 is a front view of the heating chamber,

  cut transversely, mounted on a work bench.

  As seen in the drawings, the apparatus comprises a chamber 1, preferably of square section and length

  desired, depending on the laminates to be worked.

  The wall of the chamber 1 is thermally conductive in nature.

  trice and three of its walls are surrounded by a layer 2 of insulating material provided with an outer protective covering 3. The wall of the chamber not provided with the insulating covering, referenced 4, defines the heating surface of the laminate. Inside the chamber 1 is mounted a heating element, which can be constituted by electrical resistances or fluid lines at high temperature, these lines circulating along the chamber 1 being mounted by means

of transverse supports 6.

  The chamber 1, with its insulating covering, is mounted on a longitudinal support 7 which, in the example shown in the drawings, consists of a double T profile. The attachment to the support 7 is carried out by the wall of the chamber 1 opposite to that which defines the heating surface 4. This fixing can be carried out by means of screws 8

  with interposition of sleeves 9 made of insulating material.

  The layer of insulating material 2 is protected below by the support 7. Along the adjacent walls, this layer

  of insulating material is protected by covering 3.

  The assembly shown in Figure 1 can be mounted on a structure or bench 10, Figure 2, via the lower wings of the support 7. To the structure or bench can be assembled an upper table 11, coplanar with the wall 4 of the room which defines the heating surface and which will serve as a work table for the arrangement

  of the laminate that one wishes to conform.

  The structure 10 can also be provided with air blowers 12 for cooling the areas which should not be heated. Table 11 can be folded down to reduce

  the volume of the assembly when it is not in use,

  both its storage and transport.

  With the apparatus according to the invention, the laminate which it is desired to post-form is placed on the table 11, the zone to be conformed being situated on the heating surface 4. Due to the length of this heating surface, it is obtains the softening of the entire area which must be post-formed

  in a single heating operation or phase.

  Detailed modifications may be made to the provisions

  described, without departing from the invention.

Claims (5)

Claims   1.- Apparatus for post-forming laminated laminates and the like, characterized in that it comprises an elongated chamber (1), preferably of square section, with thermally conductive walls, inside which is mounted a longitudinal heating element (5), which chamber is surrounded externally along three of its walls by a layer (2) of thermally insulating material provided with a resistant external protective covering (3), the wall (4) free of insulation defining a heating surface on which the post-forming laminate is applied, the assembly being mounted, by means of the wall opposite to that (4) which defines the heating surface,   on a rigid longitudinal support (7).   2.- Apparatus according to claim 1, characterized in that the heating element (5) consists of electrical resistors or tubes for a heat transfer fluid, which resistors or tubes circulate inside the chamber   and are mounted on transverse supports.   3.- Apparatus according to one of claims 1 and 2, character-   laughed in that the longitudinal support (7) is mounted on a structure or bench (10) to which a table is assembled   upper (11), which is coplanar with the heating surface   fage (7), as well as air blowers (12) for cooling longitudinal support.   4.- Apparatus according to one of the preceding claims,   characterized in that the elongated chamber is mounted on the support by means of fixing screws (8) which pass through   through separator sleeves (9) made of thermal material-   insulating, the layer of insulating material which covers the outer   laughing this wall of the chamber being arranged between said wall and the support.   5.- Apparatus according to one of the preceding claims,   characterized in that the longitudinal support is constituted by a double T profile, the chamber resting and being fixed on two of the coplanar wings thereof while through the two other wings the support is fixed on the bench (10) by means of screws (8).