Patent ID: 8813944

Claim:
A device for sorting out incorrectly positioned out cylindrical bodies ( 1 ), such as preforms for hollow bodies, in a singling and conveying unit, wherein the cylindrical bodies ( 1 ) have a head ( 2 ) with a collar ( 3 ), said device comprising: a roller sorter ( 5 ) which has two rollers ( 6 , 7 ), which are arranged in parallel in the conveying direction ( 22 ) and are spaced apart from each other, between which the cylindrical bodies ( 1 ) are positioned in a suspended manner, and an ejecting device ( 16 ) by means of which cylindrical bodies ( 1 ) which are incorrectly positioned between the rollers ( 6 , 7 ) are removed out of the device, wherein the ejecting device ( 16 ) has air nozzles ( 19 , 20 ) arranged laterally next to the rollers ( 6 , 7 ) for blowing away incorrectly positioned cylindrical bodies ( 1 ), wherein at least one air nozzle ( 19 ) is aligned such that the axis of flow ( 32 ) of the air flow ( 31 ) emerging from the nozzle ( 19 ) is directed approximately transversely with respect to the conveying direction ( 22 ) of the cylindrical bodies ( 1 ) and is directed at an angle of attack ( 38 ) against the head ( 2 ) and collar ( 3 ) of the cylindrical bodies ( 1 ), wherein the air nozzle ( 19 ) is fastened so as to be pivotable and the angle of attack ( 38 ) of the axis of flow ( 32 ) of the air flow ( 31 ) is adjustable in relation to the head ( 2 ) and the collar ( 3 ) of the cylindrical bodies ( 1 ), and wherein the axis of flow of the at least one air nozzle is aligned at a positive angle of attack in an inclined manner with respect to an imaginary plane placed through the axes of the two conveying rollers wherein, when viewed in the conveying direction ( 22 ) of the cylindrical bodies, several air nozzles ( 19 , 20 ) are arranged one after the other, at least in the case of a first nozzle ( 20 ) the axis of flow ( 34 ) of the air flow ( 33 ) is aligned approximately parallel to the imaginary plane ( 35 ) placed through the axes ( 23 , 24 ) of the two conveying rollers ( 6 , 7 ).