Device for filling cans and method for operating the device
AssigneeKrones AG
InventorWalter NEUMAYER
Life of this patent
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Abstract
A device for filling cans includes a filling valve, a gas channel and a seal. The seal is connected to the gas channel for receiving a compressed gas and is elastically deformable by the received compressed gas in a downward direction for pressing against a peripheral upper edge of a can positioned below the filling valve. Advantageously, the device can enable a secure sealing of the inlet gap between the can and the filling valve with comparatively low contact forces via the downwardly elastically deformable seal, so that even very thin-walled cans can be filled without risk of damage.
Claims20
A device for filling cans, having:
- a filling valve for filling a can positioned below the filling valve with a filling material;
- a gas channel for guiding a compressed gas;
- and
- a seal which:
- is connected to the gas channel for receiving the compressed gas, and
- is elastically deformable by the received compressed gas in a downward direction for pressing against a peripheral upper edge of the can positioned under the filling valve.
A method for operating a device for filling cans, wherein the method comprises:
- pressurizing a seal with a compressed gas, so that the seal deforms elastically in a downward direction and presses against a peripheral upper edge of a can ;
- and
- filling the can with a filling material from a filling valve while the seal is pressurized with the compressed gas and presses against the peripheral upper edge .
20 The method according to claim 16, wherein at least one of:
- neither the can nor the filling valve performs a lifting movement for the filling valve and the can to approach one another before filling and;
- the can has a wall thickness of at most 0.14 mm.
Dependencies are inferred from the claim text.