Method and apparatus for producing a container filled with a liquid filling from a preform by a filling introduced into the preform under pressure

摘要

The present invention is a method and apparatus for producing a container (22) filled with liquid filling from preform (1) by filling introduced into preform (1) under filling pressure, , A method and apparatus in which the filling is placed under pressure by means of a pressure pump (7) and introduced into the preform (1) through the filling valve (6) at the shaping filling station (3) . A pressure accumulator (10) arranged between the pressure pump (7) and the filling valve (6) is pressurized by the pressure pump (7) and filled with the volume of the filling. The invention provides an extrusion pump (26) comprising a filling chamber (28) for the filling and a pressure body (30) movably guided therein, the pressure body (30) 28) divided into a first partial chamber (28a) on the filling station side and a second partial chamber (28b) on the side away from the filling station, which are respectively in flow connection with the pressure accumulator (10) It is characterized by what can be brought about. The pressure body (30) is in driving connection with the drive (32) and is drivable by the drive (32), and at least temporarily, when the filling valve (6) is open, the front drive (32) and / or the accumulator (10) respectively exerts a driving force on the pressing body (30), and the pressing body (30) is necessary for the deformation of the preform (1) Push at least a portion of the amount of filling in the direction of the preform (1).