US 12,214,409 B2
Seaming device
Shinichiro Henda, Yokohama (JP); Kazuki Takahashi, Yokohama (JP); and Kazumoto Obata, Yokohama (JP)
Assigned to TOYO SEIKAN GROUP ENGINEERING CO., Ltd., Yokohama (JP)
Filed by TOYO SEIKAN GROUP ENGINEERING CO., Ltd., Yokohama (JP)
Filed on Sep. 12, 2022, as Appl. No. 17/942,621.
Application 17/942,621 is a continuation of application No. PCT/JP2020/044472, filed on Nov. 30, 2020.
Claims priority of application No. 2020-044198 (JP), filed on Mar. 13, 2020; application No. 2020-044199 (JP), filed on Mar. 13, 2020; application No. 2020-044200 (JP), filed on Mar. 13, 2020; application No. 2020-044201 (JP), filed on Mar. 13, 2020; and application No. 2020-044202 (JP), filed on Mar. 13, 2020.
Prior Publication US 2023/0001468 A1, Jan. 5, 2023
Int. Cl. B21D 51/26 (2006.01); B21D 51/32 (2006.01); B65B 7/28 (2006.01)
CPC B21D 51/32 (2013.01) [B21D 51/2653 (2013.01); B21D 51/2692 (2013.01); B65B 7/2807 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A seaming device comprising:
a chuck unit that positions a lid mounted on a can; and
a seaming unit that seams the lid to the can, wherein
the chuck unit has a spindle having a chuck for positioning the lid attached at a lower end thereof, a bearing that rotatably supports the spindle inside an in-machine housing and is lubricated by a lubricating oil, and a non-contact oil seal mechanism for sealing between the spindle and the in-machine housing at a position below the bearing,
the oil seal mechanism includes an umbrella-shaped slinger provided below the bearing,
an annular member is provided below the slinger so as to labyrinthically fit the slinger,
an intrusion preventing member including a cylindrical sleeve extending in a vertical direction is formed below the slinger around the spindle, the cylindrical sleeve includes a fringe fourth to last line protruding radially outward relative to a vertical centerline of the cylindrical sleeve and sealing between the cylindrical sleeve and the annular member,
the oil seal mechanism is configured by the slinger, the annular member and the cylindrical sleeve.