Title:
【発明の名称】圧縮成形装置
Document Type and Number:
Japanese Patent JP2929018
Kind Code:
B2
Abstract:
PCT No. PCT/JP90/01582 Sec. 371 Date Jul. 9, 1991 Sec. 102(e) Date Jul. 9, 1991 PCT Filed Dec. 5, 1990 PCT Pub. No. WO91/08888 PCT Pub. Date Jun. 27, 1991.A compression molding apparatus equipped with a rotary support member on which are mounted a plurality of molds. The molds are successively conveyed passing through a plastic material feed zone, a compression molding zone and a discharge zone by the rotation of said rotary support member. A plastic material feed device is disposed in said plastic material feed zone to feed a softened and molten plastic material to each of the molds. The plastic material feed device includes an extruder, an extruding block in which a plastic material flow path is formed, and a plastic material flow control device disposed between the extruder and the extruding block. The plastic material flow control device includes a main body that has an inlet path communicating with the extruder, a feed path communicating with the extruding block, and a discard path. The main body includes a control valve which is selectively located at a feed position at which the inlet path is shut off from the discard path and is communicated with the feed path, and at a discard position at which the inlet path is shut off from the feed path and is communicated with the discard path.
Inventors:
MURAYAMA KASHIWA
TATSUTA MASAKAZU
UTSUNOMYA WATARU
TATSUTA MASAKAZU
UTSUNOMYA WATARU
Application Number:
JP31650889A
Publication Date:
August 03, 1999
Filing Date:
December 07, 1989
Export Citation:
Assignee:
NIPPON KURAUNKORUKU KK
International Classes:
B29C43/08; B29C31/04; B29C43/18; B29C43/34; B29C33/36; B29C48/00; B29C48/12; B29L31/56; (IPC1-7): B29C43/18; B29C43/08; B29C43/34
Domestic Patent References:
| JP1235615A | ||||
| JP1262108A | ||||
| JP60172511A | ||||
| JP6090146A |
Attorney, Agent or Firm:
Naozumi Ono