B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
B41F 7/32 (2006.01) B01F 5/04 (2006.01)
Patent
CA 2599817
Device for performing the wetting operation for offset printing, comprising a main receptacle (1) which contains a wetting solution; an outlet pipe (2) with a pump (3) which pushes the solution towards an outlet nozzle (4) to project it inside a recipient (5) housed in the main receptacle; a feed pipe (6) which joins said recipient to the wetting system of the offset printing machine; and a pipe (8) through which the wetting solution returns to the main receptacle. The outlet pipe of the solution has a Venturi device (9) whose main pipe (14), through which the wetting solution passes, forms part of said outlet pipe and has at least one side air-intake pipe (10) joining the main pipe at an oblique angle.
L'invention concerne un dispositif permettant d'effectuer l'humidification pour impression offset. Ce dispositif comprend un réceptacle principal (1) qui contient une solution d'humidification ; un tuyau de sortie (2) doté d'une pompe (3) qui pousse la solution vers une buse de sortie (4) afin de projeter la solution à l'intérieur d'un récipient (5) logé dans le réceptacle principal ; un tuyau d'alimentation (6) qui réunit ce récipient au système d'humidification de l'imprimante offset ; et un tuyau (8) à travers lequel la solution d'humidification retourne au réceptacle principal. Le tuyau de sortie de la solution comprend un venturi (9) dont le tuyau principal (14), à travers lequel passe la solution d'humidification, fait partie du tuyau de sortie et comprend au moins un tuyau d'entrée d'air latéral (10) rejoignant le tuyau principal à un angle oblique.
Delta Graf S.a.
Johnston Wassenaar Llp
LandOfFree
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