| 摘要 |
A method of producing a sealed package of a pourable food product involving feeding a tube of packaging material along an axis; moving a pair of first jaws and a pair of second jaws cyclically and alternately along sealing paths parallel to the axis, and along repositioning paths; moving the jaws, as they travel along the sealing paths, into a closed position in which the sealing members grip the tube and respectively form, at different times, a first and a second seal sealing the tube and defining respective opposite ends of the package; and moving the jaws, as they travel along the respective repositioning paths, into an open position, in which they are detached from the tube; acquiring a desired value of a quantity related to the package weight; and forming the second seal at a distance, which is a function of the value, from the first seal.
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