Method of, and apparatus for, conveying printed products

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 29/04 (2006.01) B65H 29/66 (2006.01)

Patent

CA 2348299

According to the invention, the printed products (3) are delivered to a transfer position (4) by means of a delivery system (1) with a constant speed (v1) while forming an imbricated structure (S), in which the intervals (al-a4) between successive printed products (3) are different. The section-by-section transfer of the printed products (3) is carried out at said transfer position by the gripping elements (12) of a removal device (2). These gripping elements (12) are arranged in a fixed interval (D) behind one another in a direction of delivery (B) of the removal device (2). Measures are now taken with which the printed products (3) are introduced into the jaws (15) of the gripping elements (12) at a constant speed (v1) and without altering the interval (a1- a4) between successive printed products (3). The printed products are introduced into said jaws so that each gripping element (12) transports away the number of printed products (3) delivered thereto with the same mutual interval (a', a'') as in the delivered imbricated structure formation (S). A deflection device (16) ensures that after a gripping element (12) receives a number of printed products (3), the subsequent printed products (3) are respectively introduced into the next gripping element (12) without altering the mutual interval (a1-a4) thereof.

L'invention concerne un système d'alimentation (1) permettant d'alimenter à une vitesse constante (v1) une zone de transfert (4) en imprimés (3) formant une nappe (S) avec des intervalles (al-a4) différents entre les imprimés successifs (3). Dans cette zone de transfert, les imprimés (3) sont pris en charge section par section par les organes de préhension (12) d'un dispositif d'évacuation (2). Ces organes de préhension (12) à une distance fixe (D) sont placés les uns derrière les autres dans le sens d'acheminement (B) du dispositif d'évacuation (2). Des mesures sont alors prises pour que les imprimés (3) soient introduits dans les mâchoires (15) de l'organe de préhension (12) à une vitesse constante (v1) et sans modification des intervalles (a1-a4) séparant les différents imprimés successifs (3), de telle façon que chaque organe de préhension (12) évacue le nombre d'imprimés (3) qu'il a pris en charge, avec les mêmes intervalles (a', a'') que dans la nappe (S) alimentée. Un dispositif de renvoi (16) garantit qu'une fois un certain nombre d'imprimés (3) pris en charge par l'organe de préhension (12), les imprimés (3) suivants sont introduits dans l'organe de préhension (12) respectivement suivant sans modification de leurs intervalles (a1-a4).

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