A device for forming successive batches (4) of articles (2), which comprises: a supply track (8) along which the articles (2) are routed up to a supply station (9), at a substantially constant input speed; a discharge track (10) able to receive, at a discharge station (11), the successive batches (4) of articles (2) in order to route them at an output speed greater than the input speed; device (12) of transferring the articles (2) from the supply station (9) to the discharge station (11), able to group the articles (2) in order to form batches (4) spaced apart, and which comprise a succession of gripping members (13) arranged so as to engage the articles (2) at the supply station (9) and to disengage them at the discharge station (11).