US 4,413,662 A · Edging system

Abstract

A system for orienting cants for edging by the side cutters in an edger including an infeed unit for moving the cant into the edger along a prescribed path; a manually controllable positioning assembly remotely of the infeed unit for selectively positioning the cant with respect to a positioning axis to preorient the cant with respect to the positioning axis; a sensing device operatively connected to the positioning assembly for sensing the position of the cant with respect to the positioning axis when the cant is preoriented with respect to the positioning axis; memory unit operatively connected to the sensing device for storing the sensed position of the cant with respect to the positioning axis; a conveyor for selectively moving the cant from the positioning assembly to the infeed unit; an infeed stop responsive to the sensed position stored in the memory unit to position the cant with respect to the edging path with the same orientation the cant had with respect to the positioning axis when the cant was preoriented. The method of positioning the cant is also disclosed.

Claims9

Dependent claims

A method of orienting a cant on the infeed unit of an edger comprising the steps of:

moving the cant to a positioning station remote to the infeed unit;
arresting the movement of the cant in the positioning station;
superimposing on the cant a plurality of parallel, spaced apart, guide light beams corresponding to the paths along which the edger will trim the cant to form dimensioned lumber;
shifting the cant with respect to the guide light beams with a pair of spaced apart, manually controlled positioning mechanisms until the guide light beams lie inside the longitudinally extending wanes on opposite sides of the cant to orient the cant;
sensing the position of each of the positioning mechanisms when the cant is oriented;
storing the sensed position of each of the positioning mechanisms;
moving the cant into the infeed unit;
engaging the cant with a pair of spaced apart infeed stops at spaced apart positions corresponding to the positions at which the positioning mechanisms engaged the cant;
positioning each of the infeed stops according to the stored sensed position of the corresponding positioning mechanism to locate the cant on the infeed unit so that the infeed unit will feed the cant into the edger to cause the edger to trim the cant along the paths of the guide light beams at the positioning station when the cant was oriented.

6 more elements

A system for orienting cants for edging by the side cutters in an edger comprising:

an infeed unit for moving the cant into the edger along a prescribed edging path;
manually controllable positioning means remotely of said infeed unit for selectively positioning the cant with respect to a positioning axis to preorient the cant with respect to the positioning axis;
sensing means operatively connected to said positioning means for sensing the position of the cant with respect to said positioning axis when said cant is preoriented with respect to said positioning axis;
memory means operatively connected to said sensing means for storing the sensed position of the cant with respect to said positioning axis;
conveying means for selectively moving said cant from said positioning means to said infeed unit;
infeed stop means operatively connected to said memory means for controlling the position of the cant in said infeed unit with respect to the edging path, said infeed stop means responsive to the sensed position stored in said memory means to position the cant with respect to the edging path with the same orientation the cant had with respect to the positioning axis when the cant was preoriented.

3 more elements

Dependencies are inferred from the claim text.

Edging system

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Edging system

Life of this patent

Abstract

Claims9