[특허]System and method for detecting abrasive article orientation

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B24B-049/00 B24B-051/00 B24B-001/00 B24B-021/00 G06F-019/00
출원번호	US-0900714 (2004-07-28)
발명자 / 주소	Billig,Daniel A.
출원인 / 주소	3M Innovative Properties Company
인용정보	피인용 횟수 : 1 인용 특허 : 42

초록 ▼

Systems and methods control abrading operations of an abrading machine by sensing characteristics of an abrading article installed on the abrading machine. When a problem is discovered by sensing the article, appropriate actions may be taken. As one example, the abrading article may be sensed to det

Systems and methods control abrading operations of an abrading machine by sensing characteristics of an abrading article installed on the abrading machine. When a problem is discovered by sensing the article, appropriate actions may be taken. As one example, the abrading article may be sensed to determine whether the abrading article has been installed with an abrasive side facing the wrong direction. An alert allows an operator to reinstall the article. As another example, the abrading article may be sensed to determine whether splicing tape is present to hold two pieces of abrading tape together. The article may be advanced until the splicing tape is beyond an abrading zone. As another example, the abrading article may be sensed to determine whether the abrading article has stopped moving while the article drive is advancing because the article has broken. An alert allows an operator to repair the break. As yet another example, the abrading article may be sensed to determine whether it is the appropriate grade. An alert allows the article grade to be corrected.

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What is claimed is: 1. A system for controlling an abrading operation by detecting whether an abrading article is installed on an abrading machine with an abrasive side of the abrading article facing an appropriate direction, comprising: a sensor that is aimed toward the abrading article installed

What is claimed is: 1. A system for controlling an abrading operation by detecting whether an abrading article is installed on an abrading machine with an abrasive side of the abrading article facing an appropriate direction, comprising: a sensor that is aimed toward the abrading article installed on the abrading machine and that receives a reflection from a first side of the abrading article to produce an input signal value that varies depending upon whether the first side includes a plurality of individually spaced index markings that are visible prior to first use and are indicative of whether the first side is the abrasive side, the sensor comprising logic that analyzes the input signal value in relation to a reference signal value and that produces an output signal having a value determined by a result of the comparison; and a controller that maintains the abrading machine in an active or inactive state and that maintains an alert in an active or inactive state, wherein the alert is indicative of the abrasive side of the abrading article facing an inappropriate direction, wherein the controller receives the output signal and activates the abrading machine from an inactive state while maintaining the alert in the inactive state when the output signal value indicates that the abrasive side is facing the appropriate direction, and wherein the controller activates the alert from the inactive state while maintaining the abrading machine in the inactive state when the output signal value indicates that the abrasive side is not facing the appropriate direction. 2. The system of claim 1, wherein the output signal value is binary and indicates that the abrasive side of the abrading article is facing the appropriate direction when the input signal value is substantially equal to the reference signal value. 3. The system of claim 1, wherein the output signal value is binary and indicates that the abrasive side of the abrading article is not facing the appropriate direction when the input signal value is substantially equal to the reference signal value. 4. The system of claim 1, wherein the abrading article is an abrasive article comprising a plurality of abrasive particles adhered to a film backing. 5. The system of claim 1, wherein the abrading article comprises index marks in the form of diagonal lines on a side of the abrading article. 6. The system of claim 1, further comprising a workpiece having an outer surface, and wherein the abrading article abrades the outer surface of the workpiece. 7. The system of claim 6, wherein the workpiece is an engine component. 8. The system of claim 1, further comprising: a source area from which the abrading article is unwound; and a collection area to which the abrading article is rewound. 9. A method for controlling an abrading operation based on whether an abrasive side of an abrading article is facing an appropriate direction, comprising: sensing a reflection from the first side of the abrading article installed on an abrading machine to produce an input signal value that varies depending upon whether the first side includes a plurality of individually spaced index markings that are visible prior to first use and are indicative of whether the first side is the abrasive side; comparing the input signal value to a reference signal value to determine whether the abrasive side is facing the appropriate direction; when it is determined that the abrasive side is facing the appropriate direction, maintaining an alert that is indicative of the abrading article being installed with the abrasive side facing an inappropriate direction in an inactive state while activating the abrading machine from an inactive state; and when it is determined that the abrasive side is not facing the appropriate direction, maintaining the abrading machine in the inactive state while activating the alert from the inactive state. 10. The method of claim 9, wherein comparing the input signal value to the reference signal value produces an output signal value, and wherein the output signal value provides an indication of whether the abrasive side is facing the appropriate direction. 11. The method of claim 10, wherein the output signal value is binary and indicates that the abrasive side of the abrading article is facing the appropriate direction when comparing the input signal value to the reference signal value results in the input signal value being substantially equal to the reference signal value. 12. The method of claim 10, wherein the output signal value is binary and indicates that the abrasive side of the abrading article is not facing the appropriate direction when comparing the input signal value to the reference signal value results in the input signal value being substantially equal to the reference signal value. 13. The method of claim 9, wherein the abrading article is an abrasive article comprising a plurality of abrasive particles adhered to a film backing. 14. The method of claim 9, wherein the abrading article comprises index marks on a side of the abrading article.

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이 특허에 인용된 특허 (42) 인용/피인용 타임라인 분석

Calafut Edward J. (2590 Glenwood Rd. Vestal NY 13850), Abrading implement.
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Goers Brian D. ; Heuermann Troy W. ; Palmgren Gary M., Apparatus for rotative abrading applications.
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Hock Terrence F. (Golden CO), Low cost telemetry receiving system.
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Sisbarro Fredrick P. ; Thomsen Glenn W. ; Nazareth Albert R., Manufacturing method for laminated immunodiagnostic test device.
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Eisele John F. (Lakeland MN) Smith Terrance P. (Woodbury MN) Palazzotto Michael C. (St. Paul MN), Metal complex/cyanoacrylate compositions useful in latent fingerprint development.
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Mucci Michael V. ; Olson Richard M., Method of providing a smooth surface on a substrate.
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Dennis A. Abramsohn, Permanent photoreceptor registration marking and method.
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Nowak William J. (Webster NY) Costanza Daniel W. (Webster NY) Powers Edward A. (Penfield NY), Photoreceptor belt motion sensor using linear position sensors.
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Parekh Dhan N. (Williamsville NY) Williams David E. (North Tonawanda NY), Sectional abrasive belt.
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Ali Christopher A. (2109 Beaver Valley Rd. Beavercreek OH 45385) Ali Terry L. (2645 Pheasant Run La. Beavercreek OH 45434) Karlstrom Ralf (Nedranvgen 25 FIN-66840 Pensala FIX), Single sheet sandpaper delivery system and sandpaper sheet therefor.
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Korbel Gerald E., Splice means, a method of splicing an abrasive article with same and the spliced abrasive article formed thereby.
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Pieper Jon R. (Lindstrom MN) Olson Richard M. (Stillwater MN) Mucci Michael V. (Hudson WI) Holmes Gary L. (Vadnais Heights MN) Heiti Robert V. (St. Paul MN), Structured abrasive article.
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Evans F. David (Eugene OR), Vertically shiftable belt cleaner.
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Benson, Ronald C., System and method for managing and maintaining abrasive blasting machines.
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