发明名称 |
Method of and device for forming blisters. |
摘要 |
<p>A method of and a device for forming blisters in which a web material consisting of a thermoplastic resin that is supplied to a rotary forming drum is heated and deformed by heat in accordance with the configuration of cavities provided on the rotary forming drum. A predetermined tension is applied to the web material while feeding it. When the rotary forming drum consists of a polygonal drum, each peripheral surface of the drum is formed as a curved surface extending along an arc whose radius is larger than that of the circumscribed circle of the polygon. This invention can be used in a packing device for foods, drugs, etc.</p> |
申请公布号 |
EP0359242(A2) |
申请公布日期 |
1990.03.21 |
申请号 |
EP19890116973 |
申请日期 |
1989.09.13 |
申请人 |
IDEMITSU PETROCHEMICAL CO. LTD. |
发明人 |
MATUZAWA, KOUZABURO;FUJII, ATSUSHI |
分类号 |
B29C51/22;B29C51/26 |
主分类号 |
B29C51/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|