Rotary drum for processing sheet materials

Details Rotary drum for processing sheet materials Rotary drum for processing sheet materials

B - Operations, Transporting

65

G

270/150

B65G 47/82 (2006.01) B65H 5/22 (2006.01) B65H 20/12 (2006.01) B65H 29/24 (2006.01)

Patent

CA 1164900

B0980025 ABSTRACT OF THE DISCLOSURE A low inertia rotary drum supports flexible sheets of different sizes for transport and processing. A plurality of slots are disposed on the surface of the drum. The slots are configured in spaced relation along the longitudinal and circumferential dimension of the drum. A plurality of holes or communicating ports are disposed in the slots. The holes interconnect the interior of the drum with the surface. The number of holes varies circumferentially and longitudinally. A vacuum system having a relative- ly low vacuum and a relatively high flow rate is coupled to the interior of the drum. Sheets are loaded onto the drum so that a minimum number of holes are vented to the atmosphere.

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