CPC B65B 3/022 (2013.01) [B29C 48/00 (2019.02); B29C 48/0019 (2019.02); B29C 48/0021 (2019.02); B29C 48/09 (2019.02); B29C 48/11 (2019.02); B29C 65/0672 (2013.01); B65B 3/30 (2013.01); B65B 9/24 (2013.01); B65B 37/00 (2013.01); B65B 39/001 (2013.01); B65B 39/06 (2013.01); B65B 51/16 (2013.01); B65B 51/225 (2013.01); B65B 51/32 (2013.01); B65B 61/02 (2013.01); B65B 63/08 (2013.01); B65B 65/006 (2013.01); B29C 48/13 (2019.02); B29C 48/29 (2019.02); B29C 48/30 (2019.02); B29C 48/345 (2019.02); B29C 48/9115 (2019.02); B29K 2023/065 (2013.01); B65B 2220/24 (2013.01)] | 6 Claims |
1. An apparatus for producing a polymer tube, containing a liquid therein and being sealed at constant intervals, the apparatus comprising:
a die configured for melt extrusion of a polymer material into at least one tube;
a mandrel configured to feed a liquid into the at least one tube during the melt extrusion to obtain at least one liquid-containing tube;
one or more rollers configured to take up the at least one liquid-containing tube; and
a pair of pressurizing members configured to discontinuously press the at least one liquid-containing tube between the pair of pressurizing members to cause pressure-bonding before the tube solidifies, wherein the pair of pressurizing m embers is a pair of rotary horns, each horn having a protrusion, and the pair of rotary horns is configured to discontinuously press the at least one liquid-containing tube between the protrusions to cause pressure-bonding.
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