Method and device for consolidating workpieces made of solid material forming hollow spaces or capable of shrinkage

摘要

The workpiece (27) formed by a wooden board or the like has a hollow space at least open to the top inside the feed-in surface (63) defined by the annular rib (161) and, at least in the area of this surface, is supported with its supporting surface (43) in a sealing manner on a base. A valve injection tool (133), together with a nozzle plate (74) and a movable valve member (75), forms numerous valve nozzle units (76) and a cylinder space (152) to which a highly fluid, curable plastic is fed under pressure through a line (134). By lifting of the valve plate (85) by means of a servomotor (90), this plastic can thus be directed immediately into cracks and other hollow spaces of the workpiece, while the injection tool (133) presses the workpiece (27) with its supporting surface (43) in a sealing manner against a bearing surface under the pressure of a servomotor (39) via the plunger (38). After the curing and the reworking of at least the feed-in side (62), the filling bodies, formed by mostly transparent material, are scarcely noticeable. <IMAGE>