Title:
PREFORM MANUFACTURING DEVICE, MANUFACTURING METHOD, AND MOLD FOR COOLING
Document Type and Number:
WIPO Patent Application WO/2024/048442
Kind Code:
A1
Abstract:
This preform manufacturing device is provided with an injection molding part, a post-cooling part, and an extraction part. The post-cooling part has a first mold that accommodates a preform therein and contacts an outer surface of the preform, and a second mold that is inserted into the preform and provided with at least a cooling rod having a flow path for compressed air therein and a tip end piece attached to a tip end side of the cooling rod. The tip end piece includes a mold surface that corresponds to the shape of a bottom part of the preform and receives the bottom shape, and an opening part that is formed closer to a base end side than the mold surface and communicates with the flow path for compressed air. The post-cooling unit cools the bottom part with the bottom part of the preform pressed to the first mold by the mold surface of the tip end piece, and cools a barrel part with the barrel part of the preform pressed to the first mold by compressed air passing through the opening part.
Inventors:
ICHIHASHI YUKIHIRO (JP)
TAKEHANA DAIZABURO (JP)
TAKEHANA DAIZABURO (JP)
Application Number:
PCT/JP2023/030694
Publication Date:
March 07, 2024
Filing Date:
August 25, 2023
Export Citation:
Assignee:
NISSEI ASB MACHINE CO LTD (JP)
International Classes:
B29C49/64; B29B11/08; B29B13/04; B29C45/00
Domestic Patent References:
| WO2020251035A1 | 2020-12-17 |
Foreign References:
| JP2005067206A | 2005-03-17 |
Attorney, Agent or Firm:
TAKAOKA Ryoichi et al. (JP)
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