Abstract:
A method for changing the pre-stretch level of a stretch-film wrapping machine, in which method the pre-stretch level is changed by changing the transmission ratio of a power transmission gears (3, 4; 13, 14) coupling a first pre-stretching roller and a second pre-stretching roller of a pre-stretching device, wherein the pre-stretch level in changed by replacing the power transmission gears (3, 4; 13, 14) coupling the first and second pre-stretch roller located on a surface of the pre-stretching device. The invention relates also to a pre-stretching device, a stretch-film wrapping apparatus and a detachable gearbox (12).
Abstract:
A method and an apparatus for setting corner protectors on a load, in which method the corner protectors are taken from a corner protector storage (4, 5, 6) with a gripper unit, and the corner protectors are set against vertically extending corners of the load prior to or during wrapping of the non-rotatable load with film, wherein first two corner protectors are taken from the corner protector storage (4, 5, 6) with an actuator (2) comprising two gripper units, the first two corner protectors are given by the actuator to a corner protectors transfer and setting device (3, 3'), the corner protectors transfer and setting device transfers the first two corner protectors other side of the load and sets the first two corner posts against the two vertically extending corners of the load furthest away from the actuator second two corner protectors are taken from the corner protector storage and set against the two vertically extending corners of the load closest to the actuator by the actuator.
Abstract:
A method for converting a wrapping machine (1, 21) into a transport condition, said wrapping machine comprising a wrapping machine frame (2, 22, 31), as well as a circular guide (4, 5, 24, 32) mounted on the frame, whereby, in order to convert the wrapping machine (1, 21) into a transport condition, the circular guide (4, 5, 24, 32) mounted on the wrapping machine frame (2, 22, 31) is tilted with respect to the wrapping machine frame. The invention relates also to such a wrapping machine.