发明授权
- 专利标题: Asperity detection device for can
- 专利标题(中): 不锈钢检测装置
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申请号: US13513646申请日: 2010-12-16
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公开(公告)号: US08786865B2公开(公告)日: 2014-07-22
- 发明人: Tadafumi Hirano
- 申请人: Tadafumi Hirano
- 申请人地址: JP Tokyo
- 专利权人: Universal Can Corporation
- 当前专利权人: Universal Can Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Edwards Wildman Palmer LLP
- 优先权: JP2009-291183 20091222
- 国际申请: PCT/JP2010/072688 WO 20101216
- 国际公布: WO2011/078057 WO 20110630
- 主分类号: G01B11/30
- IPC分类号: G01B11/30 ; G01N21/55 ; G01N21/00 ; G06K9/00 ; H04N9/47 ; H04N7/18 ; B07C5/12 ; B07C5/34 ; G01N21/90 ; B07C5/00
摘要:
Provided is an asperity detection device for a can which does not need an additional conveyance device for inspection, reduces increased inspection costs, and allows for quick detection of defective merchandise while conveying the can.The asperity detection device for a can is provided with: first lighting devices (30) which irradiate a first light substantially horizontal to a top surface (21a) of a mouth section (21) from a side of a can (20); a second lighting device (40) which irradiates a second light substantially vertical to the top surface (21a) of the mouth section (21) from above the can (20); and an imaging device (50) which is arranged above the can (20), photographs the top surface (21a) of the mouth section (21), and detects reflection at the top surface (21a), in which at least three or more first lighting devices (30) are arranged with substantially even intervals in a circumferential direction around a periphery of the mouth section (21), the first light which is irradiated from each of the first lighting devices (30) is irradiated to the top surface (21a) from a side of the mouth section (21) along a tangent line of a cylindrical surface of the mouth section (21) substantially horizontal so that an optical axis is not coincide with the optical axes of the other first lights.
公开/授权文献
- US20120243003A1 ASPERITY DETECTION DEVICE FOR CAN 公开/授权日:2012-09-27
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