Device for preparing sealing elements

A selection and sorting device for sealing elements or hollow caps intended for a capping station, said device being in the form of a chute comprising two portions:

• a feed portion and an exit portion, and, between these two portions, a transfer channel forming an arc and comprising an ejection window, said exit portion being intended to be connected to the capping station,
• wherein said transfer channel partially encloses a wheel having notches, each notch being adapted to the size of one of said caps, said wheel being associated with pins,
• wherein each of said pins has the function of retaining a corresponding cap in a corresponding notch as the corresponding cap passes in front of said ejection window, when the corresponding cap is properly oriented and non-defective, and in that said exit portion is intended to convey said properly oriented and non-defective caps
• wherein the transfer channel is delimited by slide surfaces comprising a back wall and a front wall which are parallel to each other,
• wherein the device comprises an adjustment mechanism designed to move the front wall relative to the back wall in an adjustment direction substantially perpendicular to the back wall, in a manner that varies the thickness of the transfer channel with respect to the adjustment direction between a maximum and a minimum.