Welding apparatus
AssigneeMitsubishi Kasei Kogyo Kabushiki Kaisha
InventorsRyuzo Ebina, Tsutomu Nakayama, Minoru Tanaka
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Abstract
In a welding apparatus of the type including a pair of opposing press plates relatively movable toward and away each other and each supporting a molded article to be welded together, and a heating plate movable into and out of a space between separated molded articles for fusing confronting surfaces of the molded articles whereby the molded articles are welded together by applying pressure thereto by the press plates, there are provided mold frames on the press plates. The mold frames define an opening having substantially the same contour as the molded articles to be welded together but having a slightly smaller size than the molded article. The inner surface of the opening is provided with an outwardly inclined surface.
Claims14
A welding apparatus comprising:
- a pair of opposing press plates relatively movable toward and away from each other, each of said plates supporting a molded article to be welded together;
- a heating plate movable into and out of a space between said molded articles for fusing confronting surfaces of said molded articles so that said molded articles are welded together by applying pressure thereto by said press plates
- a plurality of mold frames mounted on said press plates, at least one of said mold frames having an outwardly inclined inner surface, said mold frames defining an opening having substantially the same contour as said molded articles to be welded together and having a slightly smaller size than said molded articles;
- and
- means supported by said press plates for separating said molded articles from said press plates.
Dependencies are inferred from the claim text.