Apparatus for feed controlling in a centerless veneer lathe
AssigneeMeinan Machinery Works, Inc.
InventorTakashi Nakaya
Life of this patent
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Abstract
An apparatus for controlling the knife carriage feed is disclosed herein which is applicable to a centerless type veneer lathe wherein a peeler log is driven to rotate by peripheral drive system without use of conventional spindles. The apparatus includes a roll which is engageable with the peripheral surface of a log to be rotated thereby for measuring the current log peripheral speed and a device connected to a carriage feeding screw for monitoring the current log diameter. The knife carriage feed is effected in accordance with the log rotational speed which is determined by the current log diameter and the current log peripheral speed so that a veneer knife on the carriage cuts into the log peripheral surface for a predetermined distance for each turn of said log.
Claims7
A veneer lathe for peeling veneer from a log comprising:
- a peripheral drive for rotating said log from the periphery thereof in a given direction at a substantially constant peripheral speed;
- a movable knife carriage having a veneer knife carried thereon;
- means for feeding said knife carriage toward said log at controlled variable feedrates;
- means for monitoring current diameter of said log while the log diameter is being decreased as the veneer peeling proceeds;
- means engageable with said log on the peripheral surface thereof for rotation therewith for measuring current peripheral speed of said log;
- control means operable to adjust the knife carriage feedrate in accordance with the current log rotational speed which is determined by said monitored current diameter of the log and said measured current peripheral speed of the log so that said veneer knife cuts into the log peripheral surface for a predetermined distance for each turn of said log.
Dependencies are inferred from the claim text.