Method for coating a core of an arbitrary shape by thermoforming, automatic machine for the implementation thereof and finished product obtained by such a method

摘要

A method for coating a preformed core having two faces and an edge around the periphery of the core, which edge links the two faces, includes thermoforming of a polymer material. The coating is formed by the heating, gluing and vacuum application of the two sheets of polymer material which are applied successively to the two faces of the core in order to cover same completely. An automatic machine can be used to carry out the method. The method can be used to produce finished products, in particular surfboards, furniture or display objects.

主权项

1. A method of coating a preformed core having a first face and a second face, the method comprising:
applying a first polymer material sheet coated with glue and having an area adapted to completely cover the first face of the preformed core, an edge on the perimeter of the preformed core and part of the second face of the preformed core, to the first face, the edge and the second face of the preformed core in a vacuum so as to undercut the edge and the second face, applying, in a vacuum, a second polymer material sheet coated with glue and having an area at the least complementary to that of the first polymer material sheet so as to cover at least the part of the second face not coverable by the first polymer material sheet, the order of applying the first and second polymer material sheets being of no consequence, and forming a joint line, outside all edges between the first and second faces, on one of the first and second faces, wherein
edges of the first polymer material sheet and the second polymer material sheet overlap with each other at an overlap area before forming the joint line, andthe joint line is formed by cutting and deburring the first polymer material sheet and the second polymer material sheet in the overlap area.