Raw board handling Sawing and cooling at press outfeed
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Raw board handling Sawing and cooling at press outfeed 05 | 2011

05 | 2011 Reliable and controlled raw board handling In continuous panel production, the reliability of the handling system is the key. We focus on designing straight-forward process that allows high-speed operation. The saws throughout the line are accurate and generate minimum waste in particleboard, fiberboard and OSB processes. The cooling includes either 180- or 360- degree rotation cooling wheels which provide efficient cooling before stacking. The raw board handling line is integrated to process control equipment and enables completely automatic remote control. The system features a...

05 | 2011 Reliable and controlled raw board handling Edge trim saw Flying cross cut saw Board breaker Pre-stacking station Cooling wheels Stacking station page 3

05 | 2011 Panel receiving from press Friction roller conveyor transfers the endless panel out from continous press. Blister star acts as a tracing wheel and punches the blown panel surface for safe transfer through following process stages. In particleboard and OSB production the panel edges are trimmed at the edge-trim saw. The saw station features 4 trimming units which allows uninterrupted production during tool change. page 4

05 | 2011 Panel receiving from press The cutting accuracy of the Flying Cross Cut Saw is based on its ability to track speed variations of the continuous press and adjust the length-cut accordingly The saw is equipped with 2,3 or 4 saw units that operate alternately if short cycle time is needed. Laboratory test pieces can be cut at any time during the continous process when one unit is in stand-by mode. page 5

Panel receiving from press

05 | 2011 Through property control into stacks Property control Panel thickness and weight are measured by thickness gauge and wheigh scale belt conveyor. Blow detector monitors blisters on board structure. Automatic panel rejection based on data received from the blow detector. page 7

05 | 2011 Through property control into stacks Reject Reject panels are removed from the process before conveying into cooling wheels and are either stacked for forklift truck or crushed into pieces by the on-line board breaker. The compact size allows the breaker to be placed conveniently into a production line either underneath it or to the end of the press outfeed line. It can also operate separately as a stand-alone machine. If short panel cycle time requires, the panels are pre-stacked prior to cooling to avoid any limitation. page 8

05 | 2011 Through property control into stacks Cooling The robust and safe turning mechanism of cooling wheels ensures reliable operation. 360-degree wheels are supplied for low-capacity production lines. A set of 180-degree wheels are supplied for medium-and high-capacity lines. page 9

05 | 2011 Through property control into stacks Stacking The master panels are stacked for intermediate raw board storage. Panels are aligned both cross- and length-wise. The stack weight depends on what kind of intermediate raw board storage is used. Accumulator levels enable continuous operation also during stack change. page 10