Suction bar system for a converting machine
AssigneeBobst Mex SA
InventorsOlivier CHANDRAN, Tim LAIR
Life of this patent
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Abstract
The present invention relates to suction bar system for a converting machine (10), the suction bar system comprising at least one suction bar assembly (31) comprising a suction plate mounted on a transverse beam having an internal air supply channel (34). The suction plate (36) comprises a plurality of main airflow channels (48) wherein each of the main airflow channels (48) is provided with a first suction opening (46a) and a second suction opening 46b. The main airflow channel (48) is provided with a constricted section (S2) with a first connecting duct (50) configured to generate a pressure drop in the first suction opening (46a).
Claims15
A suction bar system for a converting machine, the suction bar system comprising:
- at least one suction bar assembly comprising a suction plate mounted on a transverse beam having an internal air supply channel,
- the suction plate having a suction surface configured to apply suction against a blank conveyed in a direction of transportation through the converting machine,
- wherein the suction plate comprises a plurality of main airflow channels, each main airflow channel comprising an air inlet connected to the air supply channel and an air outlet, and wherein a flow direction extends between the air inlet and the air outlet, and
- wherein each of the main airflow channels is provided with a first suction opening and a second suction opening, said suction openings being provided on the suction surface, and wherein the main airflow channel is provided with a constricted section with a first connecting duct connected to the first suction opening and wherein the constricted section is configured to generate a pressure drop in the first suction opening.
Dependencies are inferred from the claim text.