Process and device for the production of foam slabs of angular cross-section in a flock composite
AssigneeHennecke GmbH
InventorsHans-Michael Sulzbach, Bodo Buchel
Life of this patent
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Abstract
Angular blocks of foam flocks can be produced by the composite process with angular edges and a homogeneous density distribution over the entire cross-section in a molding box by first extending the filling cross-section in the corners of adjoining mold walls before the flocks are introduced, and, after the flocks have been introduced, reducing it to the envisaged cross-section of the slab to be produced and thus filling hollow spaces, and compacting the flock filling to the desired density in the corners, so that the slab has a homogeneous density over the entire cross-section.
Claims6
A process for the production of foam slabs of angular cross-section in a flock composite comprising the steps of:
- a) introducing foam flocks into a molding box with adjoining mold walls;
- b) compacting the foam flocks with a stamp to the desired density or slab height to form a finished slab;
- and
- c) removing the finished slab from the mold;
- characterized in that before said foam flocks are introduced, the cross-section in every corner formed by said adjoining mold walls is extended to a filling cross-section, and after said foam flocks have been introduced, said filling cross-section is reduced to the desired shape of the cross-section of said finished slab.
A device for the production of foam slabs of angular cross-section by the flock composite process, comprising a molding box with a base and at least two adjoining molding walls fastened on said base, and a stamp which can be moved in the direction of said base, wherein at every corner formed by said two adjacent mold walls, one of said mold walls is divided into a wall part and a flap held thereon which can be moved around a perpendicular swivelling axis and can be swivelled between a position pointing outwards and a position parallel with the wall part.
Dependencies are inferred from the claim text.