Film removing device for resin molded material

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 63/00 (2006.01) B29B 17/02 (2006.01)

Patent

CA 2220164

According to a film removing device, a film-coated resin molded material having a film coated on one surface of a matrix resin is flattened by a flattening roll in a heating chamber. Further, the film-coated resin molded material is fed between a peeling roll and a feeding roll of roll type rolling means for rolling and stretching. The velocity of a peeling surface of the peeling roll is made relatively higher than the velocity of a feeding surface of the feeding roll, whereby a difference in elongation between the matrix resin and the film, and a shearing force are produced to peel the film. An applicator type supply device supplies a liquid as frictional force reducing means (e.g. water) to the peeling surface and the feeding surface. Thus, a frictional force is reduced, and stretching accompanying rolling fully works. Consequently, the film becomes easy to fracture and peel, and its peeling can be performed effectively.

Selon l'invention qui porte sur un dispositif d'enlèvement d'une pellicule, un matériau moulé en résine revêtue d'une pellicule ayant une pellicule appliquée sur une surface d'une matrice en résine est aplati au moyen d'un cylindre de planage dans une chambre de chauffe. De plus, le matériau moulé en résine revêtue d'une pellicule est passé entre un rouleau de pelage et un rouleau d'amenage du type permettant le roulement et l'étirage. La surface de pelage du rouleau de pelage est animée d'une vitesse légèrement supérieure à celle de la surface d'amenage du rouleau d'amenage, ce qui occasionne une différence d'allongement entre la matrice en résine et la pellicule ainsi qu'une force de cisaillement en vue de détacher la pellicule. Un dispositif d'alimentation du type applicateur fournit à la surface de pelage et à la surface d'amenage un liquide (p. ex. de l'eau) comme moyen de réduction de la force de friction. Ainsi, une force de friction est réduite, et l'allongement accompagnant le roulement fonctionne pleinement. Par conséquent, il devient facile de briser et détacher la pellicule, et le pelage peut effectivement se faire.

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