Surface finishing apparatus and method
AssigneeVoorwood Company
InventorsTheodore Voorhees, William W. Bollinger, Paul L. McDowell
Life of this patent
Estimating the term…
Abstract
A surface finishing apparatus for finishing the edge surfaces of fiberboards or like substrates. A pair of axially convergent drive wheels impart rotational and radial motion to a board and pushes the board against a foiling head or other surface finishing hardware. The foiling wheel is pushed by a pneumatic cylinder towards the board. An air clamp holds the board down against the drive wheels during operation. A speed indexer computer controls the rotation of the axially convergent drive wheels in inverse relationship to the rotational speed of the foiling head. In an alternative embodiment, a pair of angled hold-down wheels are used to hold the board against the drive wheels.
Claims5
A surface finishing apparatus, comprising:
- (a) a pair of axially convergent drive wheels;
- (b) hold-down means for holding a workpiece against said axially convergent drive wheels;
- (c) a foiling head;
- (d) a foiling head drive motor, said foiling head drive motor positioned to rotatably drive said foiling head;
- (e) means for heating said foiling head;
- (f) an unwind motor for a foil spool;
- and
- (g) a movable jockey arm.
A surface finishing apparatus, comprising:
- (a) a pair of axially convergent drive wheels;
- (b) an air clamp hold-down assembly, said air clamp assembly comprising
- (i) a hold-down piston, said hold-down piston having at least one air orifice in a lower surface, said orifice positioned to provide a downward-directed stream of pressurized air,
- (ii) a hold-down tube, said hold-down piston movably mounted on said hold-down tube,
- (iii) bias means for spring loading said hold-down piston on said hold-down tube, and
- (iv) a movable hold-down arm, said hold-down tube and said hold-down piston mounted on said movable hold-down arm;
- and
- (c) means for finishing the surfaces of a workpiece.
A surface finishing apparatus, comprising:
- (a) a pair of axially convergent drive wheels;
- (b) a pair of axially convergent hold-down wheels, said pair of axially convergent hold-down wheels located above said pair of axially convergent drive wheels and opposite said pair of axially convergent drive wheels, said pair of axially convergent hold-down wheels spaced apart from said pair of axially convergent drive wheels;
- and
- (c) means for finishing the surfaces of a workpiece.
Dependencies are inferred from the claim text.