Preform post-mold cooling method and apparatus

Details Preform post-mold cooling method and apparatus Preform post-mold cooling method and apparatus

B - Operations, Transporting

29

C

B29C 35/00 (2006.01) B29C 35/16 (2006.01) B29C 45/42 (2006.01) B29C 45/72 (2006.01) B29C 49/64 (2006.01) B29C 71/00 (2006.01) B29C 49/06 (2006.01)

Patent

CA 2326449

The present invention relates to an improved method and apparatus for injection molding and cooling molded articles such as preforms so as to avoid crystallinity. The apparatus and method make use of a take-off plate for removing articles (48) from a mold, which plate may include heat transfer devices for cooling exterior surfaces of the molded articles or preforms (48), and a system for cooling (74) in a controlled manner interior surfaces of the molded articles or preforms (48).

L'invention se rapporte à un procédé et à un appareil améliorés, qui sont destinés au moulage par injection et au refroidissement d'articles moulés tels que les préformes et qui visent à éviter la cristallinité. L'appareil et le procédé utilisent une plaque de préhension pour retirer les articles (48) du moule, cette plaque pouvant inclure des dispositifs de transfert de chaleur destinés à refroidir les surfaces externes des articles moulés ou des préformes (48), ainsi qu'un système servant au refroidissement contrôlé (74) des surfaces internes des articles moulés ou des préformes (48).

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