Inspection machine for plastic bottles
AssigneeElpatronic AG
InventorsHans-Ulrich Bogatzki, Felix Kramer
Life of this patent
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Abstract
An inspection machine for plastic bottles has a turn table rotatable about a vertical axis, and a plurality of inspection stations to receive the bottles to be inspected. Output signals from sensors are fed to evaluation electronics provided on the turntable itself. Each station has a plate on which a bottle can be rotated as a result of rotation of the turntable. During inspection each bottle executes an orbital movement about the vertical axis of the turntable and at the same time a rotation about the axis of bottle itself as a result of which each bottle is inspected more than once for perpendicularity of the bottom of the bottle and its neck as well. Volume and pressure tightness as well as height of the bottle and bottle color are also inspected.
Claims8
An inspection machine for plastic bottles, having a turn-table which is rotatable about a vertical axis and which has a plurality of stations to receive the bottles to be inspected, having sensor devices each consisting of a sensor and a mark to be sensed thereby and for producing corresponding output signals, and having evaluation electronics for processing the output signals, characterized in that
- (a) each station (26) comprises a plate (22) on which the bottle (10) is rotatable about a central longitudinal axis thereof, and
- (b) all the sensors (21, 21', 92, 94) and the evaluation electronics (34) are secured to the turn-table (12) and rotate jointly therewith.
Dependencies are inferred from the claim text.