Patent ID: 6892515

Claim:
An apparatus for banding palletized products, the apparatus ( 1 ) comprising: a conveyor ( 2 ) extending in a direction of feed (A) and used to carry the pallets ( 3 ), each supporting a stack ( 4 ) of the products; a gantry structure ( 5 ) mounted over the conveyor ( 2 ) and equipped with two pairs ( 6 , 7 ) of film reels, each pair being mounted at a different height from the other on gantry uprights ( 5 a , 5 b ) in such a way as to form two bands ( 8 , 9 ) of film positioned transversely relative to the uprights ( 5 a , 5 b ) so as to intercept the front of the product stack ( 4 ) as it moves forward; a pair of units ( 10 , 11 ) for sealing and cutting the film bands ( 8 , 9 ) supported by the gantry structure ( 5 ) on the rear side of said gantry structure relative to the direction of feed (A), and mobile between an idle position, where the units ( 10 , 11 ) are close to the uprights ( 5 a , 5 b ), and a working position, where the units ( 10 , 11 ) are away from the uprights ( 5 a , 5 b ) so that each intercepts, seals and cuts a respective portion of the film bands ( 8 , 9 ) wrapped around the product stack ( 4 ); wherein the pair of sealing and cutting units ( 10 , 11 ) are supported by a single mounting unit ( 12 ) that projects from the gantry structure ( 5 ) and that slides along the crossbeam ( 5 c ) to and from the idle and working positions; said mounting unit ( 12 ) being equipped with means ( 13 a , 13 b ) for locking and stabilizing the units ( 10 , 11 ) acting on the mounting unit ( 12 ) when it is at the working position, and thus forming a rigid system, wherein the mounting unit ( 12 ) comprises a pair of vertical bars ( 12 a , 12 b ) projecting from the crossbeam ( 5 c ) and mounting the pair of units ( 10 , 11 ), each of which is divided into two halves, each of the halves attached to one respective bar ( 12 a , 12 b ); each bar ( 12 a , 12 b ) being equipped with means ( 14 ) for adjusting the position of each of the units ( 10 , 11 ) lengthwise along the bars according to the positions of the respective reels ( 6 , 7 ).