Seaming device
AssigneeTOYO SEIKAN GROUP ENGINEERING CO., Ltd.
InventorsShinichiro Henda, Kazuki Takahashi, Kazumoto Obata
Life of this patent
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Abstract
A seaming device can prevent the leakage of a lubricating oil from the in-machine housing of a chuck unit into a seaming operation space, prevent the occurrence of a defective product contaminated by the lubricating oil, and eliminate heat elongation due to heat generation to accurately maintain a seaming dimension. A seaming device includes: 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, and a non-contact type oil seal mechanism for sealing between the spindle and the in-machine housing at a position below the bearing.
Claims5
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.
Dependencies are inferred from the claim text.