Title:
FLEXIBLE TUBE MANUFACTURING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/230857
Kind Code:
A1
Abstract:
A flexible tube manufacturing apparatus according to the present invention includes: a mixing valve mechanism in which a mixing ratio between a first resin and a second resin is variable; a switching valve mechanism capable of selectively supplying a resin extruded from the mixing valve mechanism or a flexible third resin extruded from an extruder to a mold; and a control device. During extrusion molding, the control device controls the switching valve mechanism so as to change the resin mixing ratio at the mixing valve mechanism in a state where the switching valve mechanism is controlled so that the resin extruded from the mixing valve mechanism can be supplied to the mold, and to supply the third resin to the mold when the proportion of the second resin has reached a prescribed value.
Inventors:
KIKUZAWA YOSHIHARU (JP)
Application Number:
PCT/JP2020/019312
Publication Date:
November 19, 2020
Filing Date:
May 14, 2020
Export Citation:
Assignee:
PLA GIKEN CO LTD (JP)
International Classes:
B29C48/15; B29C48/154; B29C48/255; B29C48/70; B29C48/92; B29L9/00
Domestic Patent References:
| WO2018002975A1 | 2018-01-04 |
Foreign References:
| JP2005067136A | 2005-03-17 |
Attorney, Agent or Firm:
OGASAWARA PATENT OFFICE (JP)
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