Provided are a method and an apparatus for extruding into a tube and filling the tube at a high speed and simultaneously sealing the tube. Specifically provided is a method for producing a polymer tube, containing a liquid therein and being sealed at constant intervals, the method including an extrusion step of continuously melt-extruding a polymer material through a die into at least one tube, while feeding a liquid into the tube to obtain at least one liquid-containing tube; and sealing step of discontinuously pressing the at least one liquid-containing tube between a pair of pressurizing members at constant intervals to cause pressure-bonding before the tube solidifies, while continuously taking up the extruded tube.

The disclosure relates to a device and a method for producing sachets filled with liquid or pasty filling material, in particular food products. The device has a coextrusion device for coextruding a strand of a wrapping material filled with the filling material and opposing circulating division plungers between which the strand can be transported and which can transport the filling material, when they move towards each other on their orbital path, strip off the wrapping material at a division point and can press the wrapping material to be flat at the division point to form a sachet.

The disclosure relates to a device and a method for producing sachets filled with liquid or pasty filling material, in particular food products. The device has a coextrusion device for coextruding a strand of a wrapping material filled with the filling material and opposing circulating division plungers between which the strand can be transported and which can transport the filling material, when they move towards each other on their orbital path, strip off the wrapping material at a division point and can press the wrapping material to be flat at the division point to form a sachet.

In a device for producing and filling container products, at least one hose (19) of plasticized plastic material can be extruded into an opened mold (7), starting from an extrusion head (13) along a hose guide. By at least one filling mandrel (1), which at least in one functional position extends through the extrusion head (13), a filling material can be introduced into the relevant container. At least one process gas feeder device (21, 23) can be used to bring a process gas into the interior of the hose (19). The process gas feeder device (21, 23) has a guide duct (21) extending inside the extrusion head (13) along the outside of the filling mandrel (1). At least part of the process gas introduced is discharged through the extrusion head (13) along at least one predeterminable exhaust gas duct (35), which is separated from the relevant guide duct (21).

In a device for producing and filling container products, at least one hose (19) of plasticized plastic material can be extruded into an opened mold (7), starting from an extrusion head (13) along a hose guide. By at least one filling mandrel (1), which at least in one functional position extends through the extrusion head (13), a filling material can be introduced into the relevant container. At least one process gas feeder device (21, 23) can be used to bring a process gas into the interior of the hose (19). The process gas feeder device (21, 23) has a guide duct (21) extending inside the extrusion head (13) along the outside of the filling mandrel (1). At least part of the process gas introduced is discharged through the extrusion head (13) along at least one predeterminable exhaust gas duct (35), which is separated from the relevant guide duct (21).