Abstract:
Apparatus for separating pieces of sheet-like material having different marginal dimensions from each other. The pieces travel over means for sensing the lengths and or widths thereof, and the pieces having certain lengths and/or widths are directed to a suction conveyor which conveys them over an opening in the apparatus, while pieces having less than said lengths and/or widths are allowed to drop through said opening.
Abstract:
The present invention is directed to a method of holding a veneer sheet which has been dried to a moisture content lower than the fiber saturation point and also heated to a temperature higher than an ambient temperature of an environment where the veneer sheet is held. The veneer sheet is bent in such way that at least a part of the veneer sheet in the longitudinal section thereof along the grain direction is curved and the same veneer sheet in any transverse section thereof perpendicular to the grain direction is substantially straight. The veneer sheet held bent is held for a predetermined period of time.
Abstract:
The system includes a veneer lathe, a conveyor or apron (50) onto which the veneer from the lathe is initially directed, followed by a combination of an anvil roller (54) and a rotating clipper knife (62), which in turn is followed by a trash gate (72). The speed and rotation of the knife (62) is controlled such that the veneer material produced by operation of the lathe is first cut upon recognition of the start of random veneer and then again upon the recognition of the start of ribbon veneer. The trash gate (72) is controlled synchronously with the operation of the knife (62) such that the trash gate (72) is open up to the point in time where the veneer trash is cut from the remainder of the veneer material, at which point the trash gate (72) is closed.
Abstract:
Veneer handling apparatus having a veneer clipper at one end thereof and a veneer sheet stacker at the other end is disclosed. Veneer sheets cut into a format size by the clipper are sorted so as to allow defective sheets to be discharged from the apparatus. Sound veneer sheets sorted from the defective sheets are distributed selectively into two ways alternately. Two conveyors arranged one above the other and converging at a position adjacent their downstream ends are provided in the apparatus, and one sheet is distributed to the upper conveyor and stopped at a predetermined position thereon until its succeeding sheet distributed to the lower conveyor is moved to another predetermined position. The sheet on the upper conveyor is allowed to move again at such controlled time that it is combined at the converging position with the succeeding sheet moving on the lower conveyor into a pair with one sheet placed over the other. This pair of combined veneer sheets is fed into the stacker with sufficient space formed between another pair of similarly combined sheets that follows.
Abstract:
The present invention is directed to a method of holding a veneer sheet which has been dried to a moisture content lower than the fiber saturation point and also heated to a temperature higher than an ambient temperature of an environment where the veneer sheet is held. The veneer sheet is bent in such way that at least a part of the veneer sheet in the longitudinal section thereof along the grain direction is curved and the same veneer sheet in any transverse section thereof perpendicular to the grain direction is substantially straight. The veneer sheet held bent is held for a predetermined period of time.