US 11,718,013 B2
Container production method by liquid blow molding
Mitsuru Shiokawa, Tokyo (JP); and Shinichi Tabata, Tokyo (JP)
Assigned to YOSHINO KOGYOSHO CO., LTD., Tokyo (JP)
Appl. No. 16/309,437
Filed by YOSHINO KOGYOSHO CO., LTD., Tokyo (JP)
PCT Filed Apr. 20, 2017, PCT No. PCT/JP2017/015952
§ 371(c)(1), (2) Date Dec. 12, 2018,
PCT Pub. No. WO2018/003257, PCT Pub. Date Jan. 4, 2018.
Claims priority of application No. 2016-131121 (JP), filed on Jun. 30, 2016.
Prior Publication US 2019/0283307 A1, Sep. 19, 2019
Int. Cl. B29C 49/48 (2006.01); B29C 49/46 (2006.01); B29C 49/56 (2006.01); B29C 49/42 (2006.01); B29L 31/00 (2006.01); B29K 23/00 (2006.01); B29K 67/00 (2006.01)
CPC B29C 49/48 (2013.01) [B29C 49/42 (2013.01); B29C 49/42069 (2022.05); B29C 49/42119 (2022.05); B29C 49/46 (2013.01); B29C 49/56 (2013.01); B29C 49/48185 (2022.05); B29C 2049/4664 (2013.01); B29K 2023/12 (2013.01); B29K 2067/003 (2013.01); B29L 2031/7158 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A container production method by liquid blow molding, the method comprising:
a liquid blow molding step of (i) supplying a pressurized liquid into a plurality of preforms made of resin disposed in a batch metal mold, the batch metal mold including a plurality of cavities arranged in series, and (ii) molding the plurality of preforms into a plurality of containers each having a trunk with a flat shape in a plan view along a full length in a vertical direction, and each trunk holding the liquid; and
a transferring step of removing the plurality of containers out simultaneously from the batch metal mold and transferring the plurality of containers in a short axis direction of the respective trunks in the plan view in a state in which the plurality of containers are filled with the liquid and a mouth of each container of the plurality of containers is not sealed, an acceleration applied to the plurality of containers in the horizontal direction during transfer of the plurality of containers being more than a gravitational acceleration, the plurality of containers being transferred in the short axis direction in the plan view along an entire length of a transfer path of the plurality of containers from the batch metal mold to a capping location at which the plurality of containers are sealed.