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US 2016/0129606 A1Published application
System and method for bucking a stem
AssigneeGriffin Lumber Company
InventorsJesse Slade Griffin, William Henry Griffin, IV, Jeremy Joseph Griffin, Charlie Julian Griffin
Life of this patent
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Abstract
Provided are a system and method for bucking a stem that utilizes the combination of moving sensor and a fixed sensor.
Claims9
A system for bucking a stem into logs comprising:
- a conveyor constructed for conveying a stem in a first direction, the stem having a first end and a second end;
- a fixed sensor constructed to sense when the first end of the stem passes by the fixed sensor while travelling on the conveyor;
- a movable sensor constructed to move in the first direction and a second direction opposite the first direction as the conveyor moves to determine a location of the second end of the stem travelling on the conveyor after the fixed sensor senses the first end;
- travel distance means for determining a distance the first end has travelled past the fixed sensor;
- a computer connected to the travel distance means, the fixed sensor and the movable sensor constructed to determine a length of the stem by determining a travel distance the first end has travelled past the fixed senor at the time the movable sensor determines the location of the second end, and adding the travel distance to a sensor distance between the fixed sensor and the movable sensor.
2 more elements
A method for bucking a stem into logs comprising:
- conveying a stem in a first direction on a conveyor, the stem having a first end and a second end;
- determining when the first end passes a fixed sensor constructed to sense the first end of the stem passing by the fixed sensor while travelling on the conveyor;
- after the first end is sensed by the fixed sensor, moving a movable sensor towards the second end and when the movable sensor senses the location of the second end the movable sensor stops moving;
- determining a travel distance the first end has travelled past the fixed sensor when the movable sensor senses the location of the second end;
- determining a sensor distance between the fixed sensor and the movable sensor when the movable sensor senses the location of the second end;
- adding the travel distance to the sensor distance to calculate a length of the stem;
- determining a buck location on the stem based on the length of the stem;
- and
- bucking the stem at the buck location to produce a log.
6 more elements
Dependencies are inferred from the claim text.