Vacuum box for a belt conveyor and belt conveyor for conveying veneer sheets
AssigneeRaute Oyj
InventorsMikko SALONEN, Roope ESKOLA, Jussi OJALAINEN, Ville HEIMONEN
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Abstract
A vacuum box for a vacuum belt conveyor system for conveying a veneer sheet is provided, the vacuum box comprises a housing having a top plate, wall plates, a bottom plate and end plates, wherein at least one opening is arranged between the bottom plate of the housing and each of the wall plates of the housing along a length of the vacuum box and wherein a shape of the bottom plate is such that edge areas of the bottom plate are further away from an imaginary plane on which the veneer sheet is conveyable than a middle area of the bottom plate. A vacuum belt conveyor system is also provided.
Claims13
A vacuum box for a vacuum belt conveyor system for conveying a veneer sheet, the vacuum box comprises a housing having a top plate, wall plates, a bottom plate and end plates, wherein at least one opening is arranged between the bottom plate of the housing and each of the wall plates of the housing along a length of the vacuum box and wherein a shape of the bottom plate is such that edge areas of the bottom plate are further away from an imaginary plane on which the veneer sheet is conveyable than a middle area of the bottom plate.
A vacuum belt conveyor system for conveying a vencer sheet, the vacuum belt conveyor system comprises:
- a vacuum box comprising a housing having a top plate, wall plates, a bottom plate and end plates, wherein at least one opening is arranged between the bottom plate of the housing and each of the wall plates of the housing along a length of the vacuum box and wherein a shape of the bottom plate is such that edge areas of the bottom plate are further away from an imaginary plane on which the veneer sheet is conveyable than a middle area of the bottom plate,
- a number of suction devices configured to suck air from the vacuum box through at least one conduit to cause a vacuum effect through at least one opening arranged between a bottom plate of a housing of the vacuum box and each of wall plates of the housing of the vacuum box,
- a plurality of belt conveyor devices associated to the vacuum box on both sides of the vacuum box to convey the veneer sheet suspended against belts of the plurality of belt conveyor devices with the vacuum effect.
Dependencies are inferred from the claim text.