Method and apparatus for retaining a flitch for cutting
AssigneeCapital Machine Company, Inc.
InventorRobert D. Brand
Life of this patent
Estimating the term…
Abstract
The present invention includes apparatus for retaining a tapered flitch, having a generally semi-cylindrical veneer-producing zone, on a staylog for movement past a veneer-slicing knife, wherein the tapered flitch includes an axis of rotation. The apparatus comprisesstationary dogs coupled to the staylog for engaging the flitch and movable dogs for moving the flitch into engagement with the stationary dogs to hold the flitch on the staylog. The flitch is held on the staylog so that the axis of rotation of the veneer-producing zone is in a parallel relation with the veneer-slicing knife in order to minimize the amount of waste veneer taken from the veneer-producing zone.
Claims42
An apparatus for retaining a flitch, said flitch including a veneer-producing surface and a mounting surface having a plurality of cavities at predetermined positions in the fitch mounting surface, the apparatus comprising:
- a staylog, and
- a plurality of dogs coupled to the staylog for retaining the flitch on the staylog, the dogs being located at positions corresponding to the plurality of cavities in the flitch mounting surface and being formed to include a flitch-engaging portion configured to engage at least a portion of the corresponding cavities and to position veneer-producing surface for cutting.
A method of retaining a flitch on a staylog for slicing veneer from a tapered veneer-producing zone, the staylog having a plurality of dogs, the method comprising the steps of:
- providing a flitch having a plurality of holes for receiving the plurality of dogs, the holes having a depth profile and the dogs having a flitch engaging portion configured to generally conform to the depth profile, the flitch-engaging portion including a plurality of flitch-engaging surfaces,
- positioning the plurality of dogs in the plurality of holes, and
- engaging the flitch with at least one of the plurality of flitch-engaging surfaces on each of the plurality of dogs to retain the flitch on the staylog with the tapered veneer-producing zone maintained in parallel relation to a veneer-slicing knife.
An apparatus for retaining a tapered flitch on a staylog for movement past a veneer-slicing knife, said flitch providing a slightly frusto-conical veneer-producing surface, the apparatus comprising:
- a plurality of stationary dogs extending from the staylog, each stationary dog having at least one flitch-engaging surface;
- and
- means for engaging the flitch-engaging surfaces of the stationary dogs with the flitch;
- said plurality of stationary dogs extending from the staylog for a distance sufficient to hold the slightly frusto-conical veneer-producing surface of the flitch substantially parallel with the veneer knife, thereby permitting the veneer slicing knife to cut veneer from substantially the entire length of the slightly frusto-conical veneer-producing surface.
In an apparatus for slicing veneer with a knife from a flitch carried by a rotating staylog, the improvement comprising means for retaining a tapered flitch with its outer surface substantially parallel to the knife.
An apparatus for retaining a flitch having a longitudinal axis on a staylog for movement past a veneer-slicing knife, the apparatus comprising:
- stationary dog means coupled to the staylog for engaging the flitch, and
- means for moving the flitch parallel to the longitudinal axis into engagement with the stationary dog means to hold the flitch on the staylog.
An apparatus for retaining a flitch on a staylog, the flitch including a plurality of dado cuts formed in a flitch mounting surface, the apparatus comprising:
- a staylog for carrying the flitch,
- a first plurality of fan dogs attached to the staylog and positioned to be received by a first group of the plurality of dado cuts for engaging the flitch, and
- a second plurality of fan dogs attached to the staylog and positioned to be received by a second group of the plurality of dado cuts for moving the flitch into engagement with the first plurality of fan dogs to retain the flitch on the staylog.
A method for retaining and cutting veneer from a flitch with a tapered outer surface with a knife, comprising
- providing a staylog with a plurality of flitch-engaging surfaces extending from said staylog a distance sufficient to hold the flitch with its tapered outer surface substantially parallel to the knife;
- providing the flitch with a plurality of surfaces located for engagement with the plurality of flitch-engaging surfaces;
- engaging the plurality of flitch-engaging surfaces of the staylog with the plurality of flitch surfaces with the tapered outer surface of the tapered flitch substantially parallel to the knife;
- moving the flitch and the knife relative to one another and cutting veneer from substantially the entire length of the tapered outer surface of the flitch.
A method of slicing veneer with a knife from a rotating tapered flitch, comprising
- providing at least two flitch-engaging surfaces axially spaced on a staylog,
- said two flitch-engaging surfaces having a sufficient height so that a tapered flitch can be supported to provide an axis of rotation of a veneer producing zone parallel to the knife,
- placing a tapered flitch on the at least two flitch-engaging surfaces with the axis of rotation of the veneer producing zone parallel to the knife, and
- rotating the flitch with the at least two flitch-engaging surfaces and moving the knife and rotating flitch relative to each other to remove veneer from the veneer-producing zone of the flitch.
Dependencies are inferred from the claim text.