Patent GB-925799-A (GB)
Title: Apparatus for making pressed components on support plates
IPC: B27N3/22
Filed: 1960-12-06
Abstract: 925,799. Laminating. H. GERLACH. Dec. 6, 1960 [Dec. 19, 1959], No. 41904/60. Class 140. [Also in Groups V and XVII] An apparatus for making pressed components, e.g. for the application of veneers to chipboard or for veneers with intermediate layers of rods, by pressing material on support plates 10, comprises a press 6, a device 2 to one side of the press for feeding the material on to one plate at a time, a first conveyer 1 which is on the same side of the press as the feeding device and is adapted for moving support plates from the feeding device to the press, means on the opposite side of the press for removing the pressed components from the plates and a second conveyer 12 for moving the plates 10 from the component removing means back under the press 6 to the feeding device 2. The feeding device 2 in Fig. 2 is adapted to feed glued chips on to the plates 10 in the manufacture of chipboards, but the device 2 is replaced by another suitable feeding arrangement when it is desired to use the apparatus for other analogous purposes. As shown, the support plates 10 are covered with a layer of glued chips 11 by reciprocation of the conveyer 1 under the feeding device 2, as shown in Fig. 2, which illustrates a three-tier press. The filled plates 10 then pass to a loading device 3, shown in its extended position, from which a loading arm 5 pushes the plates into the press 6. After pressing, the plates with the formed chipboards, or veneers, are moved into an unloading device 3<SP>1</SP> by an arm 5<SP>1</SP>. The plates are then lowered oneby-one to the position 4b where a ram 16 removes the chipboards from the plates 10 into a trimming saw device 17. The empty plates 10 are lowered on to the return conveyer 12 and pass to an air cooler 13 and then to the conveyer 1. The conveyer 12 is driven from the conveyer 1 by a linkage 18 which is operative only when plates are transferred from the conveyer 12. In alternative embodiments the return and feed conveyers may overlap, the overlapping part of the return conveyer being reciprooable vertically between positions where it is slightly below and slightly above the feed conveyer, or the return conveyer may pass under the feed conveyer, the plates being returned to the feed conveyer by a lifting device incorporating a conveyer which is driven only when a gear wheel provided on it meshes with driving gears on the return and feed conveyers. Where no trimming is carried out the chipboards may be fed to a stacking device shown in Fig. 4. The boards are moved by the piston 16 between driven rollers 7 so that a switching member 23 is raised operating a switch 28. This lowers table 9 by the thickness of the board 11<SP>1</SP>. The trailing edges of the boards 11<SP>1</SP> are left on the shoulder 8 and are pushed off by the succeeding board so that the boards are all aligned as shown. The arm 25 may be pivoted through 90 degrees on a base 30 and this causes lever 33 to operate switch 32 which lowers the table 9 fully, to facilitate removal of the stacked boards. When the arm 25 is returned to its original position the switch 31 is operated which fully raises the table. With single-stage plant the boards 11<SP>1</SP> may be removed from the support-plates 10 by an,extra movement of the arm 5<SP>1</SP> of Fig. 2 the end of the arm being constructed as in Fig. 5 so that a roller 5b rolls over the board surface and then the extension of the arm drops behind the trailing edge of the board 11, when movement to the left will remove the board 11<SP>1</SP>.