Cutting – With means to monitor and control operation
Patent
1992-02-14
1993-08-24
Phan, Hien H.
Cutting
With means to monitor and control operation
83 767, 83817, 83819, B27B 1308
Patent
active
052378977
ABSTRACT:
The invention provides a bandmill having an endless loop of bandsaw blade which is automatically strained to a desired tension, and automatically driven at an accurate location or tracking position. The bandmill runs on a pair of spaced co-planar wheels, which are forced longitudinally apart to apply strain to the bandsaw. Actual saw strain is automatically detected by a force transducer within the strain mechanism, and the actual saw strain is automatically compared electronically with a desired saw strain. A servo-controller automatically adjusts distance between the wheels to vary force therebetween so that actual saw strain is varied to approach the desired saw strain. Also, actual tracking of the saw blade relative to the wheels is automatically sensed by sensors located adjacent the edge of the saw blade. The actual tracking of the saw blade is compared electronically relative to a desired tracking position, and tilt of a tiltable wheel is automatically adjusted so that actual tracking of the saw on the wheels is varied to approach the desired tracking position. Alternatively, a visual display of actual tracking accuracy can be obtained, so as to permit manual adjustment of the tiltable wheel to correct inaccurate tracking.
REFERENCES:
patent: 1392990 (1921-10-01), Vaughan
patent: 2395237 (1946-02-01), Swenson
patent: 2644492 (1953-07-01), Crane
patent: 3118314 (1964-01-01), Schuster
patent: 3128661 (1964-04-01), Diehl et al.
patent: 3323699 (1967-06-01), Bricker
patent: 3504458 (1970-04-01), Rutt
patent: 3570735 (1971-03-01), Kurz
patent: 3838620 (1974-10-01), Baldrey et al.
patent: 3971166 (1976-07-01), Habeck et al.
patent: 4187645 (1980-02-01), Lind
patent: 4294044 (1981-10-01), Hansen
patent: 4329901 (1982-05-01), Stroud
patent: 4337598 (1982-07-01), Barth et al.
patent: 4597132 (1986-07-01), Elmer et al.
Japanese Publication Mokuzai Gakkaishi, vol. 28, No. 12, pp. 783-787 (1982). Title: Feedback Control Of The Running Position Of A Band Saw With An Actuator, Nobuaki Hattori et al.
Komori Edward H.
Wijesinghe Ralph
Phan Hien H.
Seneca Sawmill Company
LandOfFree
Automatic bandmill strain and saw tracking method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic bandmill strain and saw tracking method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic bandmill strain and saw tracking method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-822490