Apparatus for the threedimensional inspection of hollow bodies

Details Apparatus for the threedimensional inspection of hollow bodies Apparatus for the threedimensional inspection of hollow bodies

G - Physics

01

N

354/46, 340/124.

G01N 21/84 (2006.01) G01N 21/90 (2006.01)

Patent

CA 2031885

A conveyor moves the hollow bodies over a circular path through an inspection region in which the hollow bodies are homogeneously illuminated by an illumination device. The light issuing from the hollow bodies passes via a group of four mirrors and a deflecting mirror to a matrix camera or line scanning camera. The mirrors are plane mirrors which are inclined at an angle in relation to one another. The hollow bodies execute one complete revolution about their longitudinal axis while passing through the inspection region. Therefore, the group of four mirrors views a quarter of the circumference of the hollow bodies each time in succession. The inspection apparatus is particularly suitable for inspecting the threaded region of bottles and has the advantage that it does not need any moving parts.

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