US 12,233,446 B2
Can body forming device
Kazuhiro Shinbata, Kanagawa (JP)
Assigned to TOYO SEIKAN CO., LTD., Tokyo (JP)
Appl. No. 17/774,286
Filed by TOYO SEIKAN CO., LTD., Tokyo (JP)
PCT Filed Aug. 14, 2020, PCT No. PCT/JP2020/030889
§ 371(c)(1), (2) Date May 4, 2022,
PCT Pub. No. WO2021/095309, PCT Pub. Date May 20, 2021.
Claims priority of application No. 2019-204285 (JP), filed on Nov. 11, 2019.
Prior Publication US 2022/0388051 A1, Dec. 8, 2022
Int. Cl. B21D 22/26 (2006.01); B21D 22/28 (2006.01); B21D 51/26 (2006.01)
CPC B21D 22/26 (2013.01) [B21D 22/28 (2013.01); B21D 51/26 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A can body forming device for forming a can body in which a cylindrical barrel part and a can bottom part are integrally formed, the can body forming device comprising:
a tool used for the can body having a concave dome part in a center of the can bottom part and having an annular leg part formed on a periphery of the dome part to reform a shape of the leg part,
wherein the tool includes: a pressing body that is inserted into the can body, and that abuts on an inner surface of the dome part; and a forming die that forms a curved end part heading inward on a lower end part of the leg part, and
wherein an air jetting part for causing the can bottom part to abut on an abutting surface of the pressing body is provided in a center part of the forming die.