Debarking machine
AssigneeAndritz Inc.
InventorsJouni Havumaki, Pekka Kokko, Bruce Kirkpatrick
Life of this patent
Estimating the term…
Loading patent…
AssigneeAndritz Inc.
InventorsJouni Havumaki, Pekka Kokko, Bruce Kirkpatrick
Estimating the term…
The invention relates to a debarking machine for the debarking of logs and for the expulsion of at least some of the removed bark from a wood flow passing through the debarking machine. The debarking machine having a number of rotating debarking shafts extending parallel to an advancing direction (A) of the logs to be fed therethrough. The debarking shafts are provided with a number of teeth adapted to strip bark off the logs transversely to the lengthwise direction of the logs and at the same time to convey the logs transversely relative to said shafts. The shafts, together with the teeth thereof constitute at least a section of a support surface upon which the logs travel through the debarking machine. For feeding the logs into the debarking machine, its admission end is provided with a conveyor adapted to positively feed the logs through an opening in the admission end of the debarking machine. The feed rate and feed force of the conveyor are preferably regulated.
A debarking machine (1) for the excortication or pretreatment of logs (2) for separately performed final barking and for the expulsion of at least some of the removed barks from a wood flow passing through the debarking machine, said debarking machine comprising a number of rotatable debarking shafts (3) extending parallel to an advancing direction (A) of the logs (2) to be fed therethrough, which are provided with a number of teeth (4) extending beyond the circumferential surface of the shaft (3) and adapted to strip bark off the presently processed logs (2) transversely to the lengthwise direction of the logs and at the same time to convey the logs transversely relative to said shafts (3), and said shafts (3), together with the teeth thereof (4), being adapted to constitute at least a section of a support surface, upon which the presently processed logs (2) travel through the debarking machine, characterized in that for feeding the logs (2) into the debarking machine (1), its admission side is provided with a conveyor (7), said conveyor being adapted to positively feed the logs (2) through the opening (6) formed in the end (5) of the debarking machine (1) onto said support surface of the debarking machine carrying the logs (2), particularly onto its lower section and that the conveyor's (7) feeding direction (S) is at least roughly the same as the advancing direction (A) of logs within the debarking machine (1).
A debarking machine for removing bark from logs having a length and advancing into said debarking machine in a first direction, said debarking machine comprising:
A debarking station for debarking logs, said station comprising:
Dependencies are inferred from the claim text.