发明名称 Device enabling a plastic film to be drawn between two rollers and packaging machines comprising it
摘要 The invention relates to a device for drawing plastic film between two rotating rollers, an upstream roller and a downstream roller taking into account the direction in which the film progresses, the upstream roller being driven by means of the film itself by the rotating load. According to the invention, the upstream roller 2 imparts its movement to the downstream roller 3, an intermediate movement-transmitting means 1 being provided between the two rollers in order for the rotation speed of the downstream roller 3 to be always be less than the speed of the upstream roller 2 so that the film is drawn between the two rotating rollers. This device applies especially to machines for packaging a load with the aid of a plastic film wrapped around the load. <IMAGE>
申请公布号 FR2544702(A1) 申请公布日期 1984.10.26
申请号 FR19830006469 申请日期 1983.04.20
申请人 POLYPACK INDUSTRIES 发明人 MICHEL ROTEREAU
分类号 B65B11/04;B65H23/188;(IPC1-7):B65H23/14;B65H81/00 主分类号 B65B11/04
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