Apparatus and method for manufacturing plastic frameworks such as window frames

摘要

A production line and a method for carrying out machining and cleaning operations on rectangular framework, such as window frames, is provided. Initially, elongate plastic frame members are welded together in a plastic frame welding machine, thereby forming two rectangular frameworks located one above the other. These are moved to a framework processing machine along separate predetermined paths where the first path being located above the second path. The paths are provided by horizontally extending guide arrangements on the machine which has at least one power tool for carrying out machining operations, this tool being supported by a transporting mechanism capable of moving the tool both horizontally and vertically. Machining steps are carried out on the two frame works while they are held one above the other in the processing machine. The frameworks are then moved to a weld cleaning machine along respective upper and lower paths and further processing operations including weld cleaning steps are carried out in this machine.