Cutting and creasing apparatus

B - Operations – Transporting – 26 – F

Patent

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Details

B26F 1/44 (2006.01) B26D 7/10 (2006.01) B26D 7/20 (2006.01) B29B 13/02 (2006.01) B29C 53/06 (2006.01) B29C 65/00 (2006.01) B31B 1/22 (2006.01) B29C 35/04 (2006.01) B29C 37/00 (2006.01)

Patent

CA 2219937

An apparatus for the cutting and creasing of plastics material sheet is disclosed which comprises a cutting and creasing tool and a corresponding plate arranged for mutual contact characterised in that the plate is free of raised surfaces and is covered with a plastics material, preferably nylon. Additionally, an apparatus for preheating corrugated plastics sheet material is described which comprises a flat bed portion adapted to receive a stack of precut corrugated sheet material blanks with their direction of corrugation aligned, heating means at at least one end of the stack, and fan means at at least one end of the stack, the heating and fan means being arranged such as to direct heated air along the corrugations of at least some of the sheets in the stack and back via the remainder of the sheets in the stack in an endless loop.

Appareil permettant de couper et de plier des matériaux plastiques en feuille, qui comporte un outil de coupe et de pliage (12) et une plaque correspondante (10) disposée en vue du contact mutuel, ladite plaque (10) étant exempte de parties surélevées et couverte d'un matériau plastique (22), de préférence de nylon. La présente invention concerne en outre un appareil destiné à préchauffer des matériaux plastiques ondulés en feuilles (23), qui comporte une partie base plate (28) conçue pour recevoir une pile d'ébauches précoupées de matériau ondulé en feuilles (23), la direction d'ondulation étant la même pour toutes les feuilles, un dispositif de chauffage (34) à au moins une extrémité de la pile et un dispositif de ventilation (32) à au moins une extrémité de la pile, lesdits dispositifs de chauffage (34) et de ventilation (32) étant disposés de manière à diriger de l'air chaud le long des ondulations d'au moins certaines des feuilles (23) de la pile et à le renvoyer par le reste des feuilles de la pile en lui faisant effectuer une boucle sans fin.

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