Magazine lumber feeder

Details Magazine lumber feeder Magazine lumber feeder

2005-08-02

2005-08-02

Krizek, Janice L. (Department: 3652)

Material or article handling

Apparatus for moving intersupporting articles into, within,...

Unstacking apparatus

C414S789500

Reexamination Certificate

active

06923614

ABSTRACT:
The present invention provides an efficient, reliable lumber magazine feeder that can supply large numbers of boards of all sizes. Some embodiments of this magazine lumber feeder comprise of one or more modules, each capable of dispensing a particular width of board. These modules may comprise a gripper/shuttle assembly, an overhead rail, and an adjustable lumber support. The gripper/shuttle assembly contains hydraulic valving to operate two hydraulic cylinders. The first cylinder grips the bottom most board in the stack by clamping onto the narrow dimension on a board. The second cylinder is capable of moving the gripper assembly in a push or pull direction, thus sliding the bottom board from its stacked position.The present invention may also include a programmable logic controller that receives electronic commands from an automatic saw, or the like. The controller in some embodiments receives electronic signals representing a desired board size from the automatic saw. The controller34then processes those signals and activates the correct module, which causes the feeder to dispense one board. Each request sent to the controller in these embodiments will result in one board being dispensed.

REFERENCES:
patent: 2730144 (1956-01-01), Joa
patent: 4324520 (1982-04-01), Kjellberg
patent: 5863176 (1999-01-01), Newnes et al.
patent: 6379105 (2002-04-01), Aylsworth
patent: 0 141 064 (1985-05-01), None

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