Converting machine with inversion transfer module
AssigneeBobst Lyon
InventorEric Vernay
Life of this patent
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Abstract
The present invention relates to a converting machine provided with an inversion transfer module (60). The converting machine comprises a printing module (16) comprising a first printing unit (17) arranged to print on a top side (S1) of a sheet (1), and a second printing unit (17′) arranged to print a bottom side (S2) of the sheet. The inversion transfer module is arranged between the first printing unit and the second printing unit and comprises a first and a second inversion vacuum transfers (62, 64) which are configured to change the side of adherence and transportation of the sheet.
Claims20
A converting machine for printing and transforming a sheet into a packaging element for a box, the converting machine comprising:
- a printing module comprising a first printing unit arranged to print on a top side of a sheet, and a second printing unit arranged to print on a bottom side of the sheet, and
- a conveying system configured to transport the sheet through the converting machine along a transportation path in a direction of conveyance, the conveying system comprising a first transfer unit configured to contact and transport the sheet on the bottom side of the sheet and a second transfer unit configured to contact and transport the sheet on the top side of the sheet, the transfer units comprising drive elements configured to move the sheet forward in the direction of conveyance and vacuum apertures arranged to adhere the sheet to the drive elements,
- wherein the converting machine further comprises an inversion transfer module arranged between the first printing unit and the second printing unit, the inversion transfer module comprising an inlet inversion vacuum transfer and an outlet inversion vacuum transfer, each configured to contact and transport a different side of the sheet, whereby the inversion transfer module is configured to change the side of adherence and transportation of the sheet, and each of the inlet inversion vacuum transfer and the outlet inversion vacuum transfer has an entrance and an exit, and
- wherein the inversion transfer module further comprises a first deflector and a second deflector, the first deflector is disposed at the exit of the inlet inversion vacuum transfer, and the second deflector is disposed at the entrance of the outlet inversion vacuum transfer.
Dependencies are inferred from the claim text.