Krones Ag Hermann Kronseder Maschinenfabrik

Krones Ag

Karl Griesbeck

Franz Haring

Hermann Kronseder

Horst Winter

Reiner Bischkopf

Wolfgang Ruppelt

Franz Häring

Blow moulding machine

Bottle inspection machine

Bottles made of transparent plastic material or glass are subjected to at least one stationary examination device and further for detecting impurities or damage to the bottom, side wall or mouth regions of vessels. To be able to detect defects which may cause the bottles to leak, and which cannot be detected reliably by optoelectronic devices, the vessels are inspected additionally using a leak test by developing pressures.

Continuously operating inspection machine for vessels

First, second and third linear conveyors are arranged in alignment with each other in the stated order. Bottles to be inspected are conveyed standing on their bottoms on the first linear conveyor through an inspection station followed by an ejector for those bottles which fail to match specified characteristics of an acceptable bottle model. The second conveyor has spaced apart parallel translating conveyor belts for frictionally gripping the bottles by their bodies between them to make their mouth ends and bottoms clear for inspection. The bottle discharge end region of the first conveyor and the bottle inlet end region overlap to achieve an overall shorter machine. The second conveyor has a bottle discharge region that overlaps the bottle inlet end region of the third conveyor to achieve a shorter machine. Bottles determined at the first conveyor inspection station to have one or more characteristics that do not match acceptable bottles are ejected and remaining bottles go on to be inspected for other characteristics at a station adjacent the second conveyor and those found to have one or more unacceptable characteristics differing from an acceptable bottle are ejected upon discharge from the second conveyor to the third conveyor.

Inspection machine for bottles or the like

Empty bottles are checked for foreign bodies and other contamination by passing the bottles successively through two inspection zones in which they are optoelectronically scanned while they are on rotating disks that are mounted on a rotating table. When in one inspection zone a bottle is held stable on the disk by a rotatable socket that grips the bottle mouth to allow a clear view for inspecting down to the bottom. When in the other inspection zone the bottle is engaged by a ring at about shoulder height so there is a clear view for inspection of the bottle portion from the shoulder to the mouth. In transition regions between inspection zones the ring and socket both engage the bottle for a moment and then one gripper is withdrawn while the other remains to hold the bottle in the forthcoming inspection zone.

Method and device for inspecting empty bottles

Growing community of inventors

Wuppertal, Germany

Karl Griesbeck