Abstract: A device for spreading of a top wrapping flm in wrapping in a wrapping machine. The wrapping machine is provided with a top film device which has a top film roll as well as devices for feeding and pulling the top film. These devices are arranged to spread the top film above the product to be packaged and to cut the top film to the specified dimension. The device is provided, as well, with a press plate which presses the product to be packaged from above, for the purpose of keeping the product to be packaged in position during the wrapping. The devices for feeding and for pulling of the top film are arranged on a frame of the wrapping machine, to be simultaneously movable in opposite directions with respect to one another. When products to be packaged are being exchanged and when the wrapping is interrupted, the feed device is arranged to pull a top film out of a top film roll substantially to a middle of the wrapping station.

Abstract: Method and apparatus for exchanging film rolls during a wrapping operation in a wrapping machine which is arranged to wind wrapping film around the product being packaged, the product being stationary or rotated around a horizontal axis. The wrapping machine includes a film distribution sledge provided with tension rolls mounted on a rotatable wrapping crank. A cassette or the like holding a plurality of new film rolls is provided at a film roll exchange station. A transfer sledge removes an old film roll or bushing from the film distribution sledge and transfers a new film roll or bushing from the cassette into the film distribution sledge. A device is provided at the exchange station for passing an end region of the film of the new film roll over the tension rolls of the film distribution sledge to a grasping member during the film roll exchange operation.

Abstract: Apparatus for packaging articles in film material includes a frame structure and a mechanism for wrapping film material around a stationary article received in the frame structure. The mechanism includes a rotatable frame assembly mounted for rotation in the frame structure and apparatus for rotating the same. A roll of film material is mounted on the rotatable frame assembly along with braking and diverting rolls. A gripping device is provided to selectively engage and release the film material during rotation of the rotatable frame assembly. The rotatable frame assembly is itself mounted in a support frame arranged in the frame structure for reciprocating movement in up and down directions, i.e., the support frame carrying the rotatable frame assembly can be raised and lowered. A cut-off and seaming device is provided for cutting the film material and for seaming or affixing the cut-off end thereof. A pressing device is arranged to be descendable onto the article being packaged.