Unit for Packaging Containers and a Device for Forming Said Containers Produced Continuously from a Tubular Wrapper

摘要

A device ( 8 ) for forming containers ( 2 ) produced continuously from a tubular wrapper ( 3 ) fed along a substantially vertical direction of advance (A). The device ahs at least one support carriage ( 8 a) movable along a respective closed pathe (P) having at least one active segment (P') parallel to the direction of advance (A). The carriage ( 8 a) supports a sealing base ( 11 ) able to be associated to a first lateral face ( 2 a) of said tubular wrapper ( 3 ) at a sealing region (Z) of the wrapper ( 3 ) itself. A contrasting element ( 14 ) is removably associated to the support carriage ( 8 a) and movable between a first closed position in which it is approached to the base ( 11 ) and abuts against a second lateral face ( 2 b) or the tubular wrapper ( 3 ) opposite to the first latoral face ( 2 a) at the sealing region (Z), and a second position in which it is movably away from the base ( 11 ). The device also has means ( 10 ) for actuating the support carriage ( 8 a) able to actuate the carriages ( 8 a) along the path (P) at variable velocity and means ( 38 ) for cutting said tubular wrapper ( 3 ) to obtain the containers ( 2 ).