发明名称 |
Annular die for a lamination product. |
摘要 |
<p>An annular die for a lamination product comprises a center core portion 2, four circular-plate-like rings 1 arranged around the center core portion in the vertical direction so as to form a resin passage, which is communicated with a die lip 7, at the inner surface of the circular-plate-like rings, wherein openings for feeding resin are formed so as to open at the outer circumferential portions of mating surfaces 11 of the circular-plate-like rings; manifolds 5 are formed in either one of the mating surfaces of the rings so as to extend from the opening 4 in a spiral form, the depth of the manifolds being gradually decreased toward the inside of the mating surfaces; and a final resin-flowing area 51 is formed to communicate the manifolds 5 with the resin passage. <IMAGE></p> |
申请公布号 |
EP0471879(A1) |
申请公布日期 |
1992.02.26 |
申请号 |
EP19900116191 |
申请日期 |
1990.08.23 |
申请人 |
MITSUBISHI PLASTICS INDUSTRIES LIMITED |
发明人 |
YAMADA, TAKAO, MITSUBISHI PLASTICS, IND. LTD.;HIGUCHI, YOSHIAKI, MITSUBISHI PLASTICS, IND. LTD. |
分类号 |
B29C47/26;B29C47/06;B29C47/20;B29C47/28;B30B11/22 |
主分类号 |
B29C47/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|