Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1989-08-22
1992-05-19
Rose, Robert A.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
511658, 125 1103, 125 1121, B24B 5304
Patent
active
051136210
ABSTRACT:
An apparatus is described that converts a manual adjustment procedure of a lathe on an existing pulp-grinding machine into an automated electronic procedure. The pre-existing lathe has a sharpening burr affixed to a movable plunger. The plunger is manually lowered by a hand crank until the burr contacts a surface of a pulp-grinding stone. The present invention replaces the hand crank with a reversible, variable speed motor. A transducer is affixed to the plunger wherein electric signals are produced in response to vibrations resulting from contact between the burr and the grinding stone. The signals are processed by a standard programmable controller to control the motor. An electronic encoder electrically measures the position of the plunger and communicates the position to the programmable controller. When the burr on the plunger contacts the grinding stone, the motor is programmed to automatically stop. The controller can then direct the motor to move the plunger the precise depth required for a specific burr, prior to the lathe making a horizontal pass along the stone. The controller records the contact position of the plunger for the next sharpening procedure.
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Chisholm, Jr. Malcolm J.
Montague Industries, Inc.
Rose Robert A.
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