Hollow panel and mould for the manufacture thereof

摘要

A hollow panel including a hollow central board or body and two external sheets forming a sandwich, the central body being made of wood fiber and glues and made in a mold, the mold having an uneven surface with oblique walls and truncated vertices where, the external sheets, made form the same material as the central body, are joined using the same glues, and the mold has a fixed peripheral frame, a thrust platform and a heating plate with a serrated plate to which another, similar plate is brought close such that the two serrated plates constitutes the mold, where the latter plate is rigidly secured to the upper hot plate of the press for forming the central board or body, and the teeth of the two plates are offset in a staggered pattern, and do not meet, to form the uneven surface with the desired thickness.

主权项

1. Mold for manufacture of hollow panels, being of the type that include a hollow central panel and two external covering sheets joined with adhesive to the central panel, and the mold being disposed in a frame press an upper hot plate whereof is raised to allow entry of a dosage apparatus which discharges in the mold a product of wood fiber and glues, which then lowers in a pressing phase closing the mold in a top part, a lower hot plate of the press defining a displaceable bottom of the mold, the mold comprising:
a fixed peripheral frame of dimensions corresponding to a panel; a heating plate which can be vertically displaced by hydraulic cylinders, a free surface of said heating plate being occupied by a first serrated profile plate which forms the mold of striations parallel with an angle and desired height, being interchangeable; a thrust platform and a heating plate, actuated by the hydraulic cylinders of the press, a second serrated plate which forms part of the mold, the second plate being rigidly secured to the upper hot plate of the press, with an identical serration to that of the first serrated plate but offset in a staggered pattern with respect thereto to form oblique walls of the hollow central body of the hollow panel.