Title:
管状フィルムを製造するフィルムダイ
Document Type and Number:
Japanese Patent JP2004522626
Kind Code:
A
Abstract:
A film die for the production of tubular film made of thermoplastic synthetics has at least one feed channel for the synthetic fused material which ends in a ring-shaped discharge nozzle with an interior and/or exterior cooling ring that is adjusted to the diameter of the extruded synthetic tube, in which physical parameters of the air blown onto the extruded film tube can be variably changed sector by sector. The film die is divided into sections, in which the temperature is individually variable, and/or additional bores are arranged across the circumference of the film die, which are essentially aligned vertical to the exterior cooling ring, whereby air of variable temperatures can be blown from them, the physical parameters of which are variable. The film die has at least one control unit that controls or operates the various measures for influencing the film thickness.
Inventors:
Fischer Herbert
Application Number:
JP2002569379A
Publication Date:
July 29, 2004
Filing Date:
February 22, 2002
Export Citation:
Assignee:
Windmailer Und Hellscher Commandit Gezel Shaft
International Classes:
B29C48/10; B29C48/32; B29C48/92; B29L7/00; (IPC1-7): B29C47/92; B29C47/20
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda