The Unscrambler elevates logs from the log deck to a higher level of the sawmill line and separates the logs to load a single piece into an infeed conveyor. It usually follows after a log deck 101. The Elevator is used to elevate the logs to a higher conveyor line. It follows after the infeed conveyor 109 with side ejector, which kicks the single logs onto the elevator. Both types of conveyors are generally a cross-chain conveyor with robust sectional steel frame. The logs are transported by the conveyor chains with special lugs. The chain moves on hardox slides. The bearing houses are from steel and they secure the long operational life of the conveyor. The type and size of the chains are determined by the transporting load capacity, the speed of the conveyor and the inclination. The number of cross-chains is calculated according to the minimal and maximal length of the logs.
The conveyor is driven by an electric motor with a sprocket. The speed can be regulated by the frequency converter. The length of the conveyor is usually between 2,0 – 4,0 m and it can be used for the transport of the logs from 2 to24 m in length. The unscrambler is supplied with the steel sheeting between the chains. There is a scraper conveyor 405 for withdrawal of the bark situated under the conveyor. The following conveyor is generally a log feeder 104.
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