发明名称 |
Blow molding device |
摘要 |
To effectively prevent occurrence of stretching unevenness during blow molding using a liquid as the pressure medium without significantly modifying the structure of a device, provided is a blow molding device including: a metal mold used for blow molding; and a blow nozzle that tightly communicates with a mouth tubular portion of a bottomed tubular preform, the liquid as the pressure medium being supplied into the preform through the blow nozzle. The blow nozzle is provided, at a lower end portion thereof, with an engaging tubular piece that is inserted into the mouth tubular portion, and the engaging tubular piece has a length by which a lower end of the engaging tubular piece extends further downward than a neck ring in a state where the blow nozzle is in communication with the mouth tubular portion, the neck ring being provided around a lower end of the mouth tubular portion. |
申请公布号 |
US9421708(B2) |
申请公布日期 |
2016.08.23 |
申请号 |
US201314389616 |
申请日期 |
2013.01.22 |
申请人 |
Discma AG |
发明人 |
Tamura Nobuyuki;Morikami Shigeki;Tabata Shinichi |
分类号 |
B29C49/46;B29C49/58;B29C49/28;B29C49/12;B29L31/00;B29C49/06;B29C49/42 |
主分类号 |
B29C49/46 |
代理机构 |
Honigman Miller Schwartz and Cohn LLP |
代理人 |
Sosenko Eric J.;O'Brien Jonathan P.;Honigman Miller Schwartz and Cohn LLP |
主权项 |
1. A blow molding device, comprising:
a metal mold used for blow molding, the metal mold including portions defining a shoulder portion; and a blow nozzle configured to tightly communicate with a mouth tubular portion of a bottomed tubular preform, a liquid as a pressure medium coupled to the blow nozzle so as to be provided into the preform through the blow nozzle, wherein the blow nozzle is provided, at a lower end portion thereof, with an engaging tubular piece configured to be inserted into the mouth tubular portion, and the engaging tubular piece has a length by which a lower end of the engaging tubular piece extends further downward than a neck ring and into a region of the metal mold having the portions defining the shoulder portion in a state where the blow nozzle is in communication with the mouth tubular portion, the neck ring being provided around a lower end of the mouth tubular portion. |
地址 |
Hunenberg CH |