US 6,543,433 B2Granted

Method and a device for dressing a saw blade

AssigneeIseli & Co. AG Maschinenfabrik

InventorBenno Iseli

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Abstract

A dressing center with a roller unit wherein a saw blade is smoothed. The saw blade is led centrically to an ideal plane between corresponding roller pairs. Each roller pair has a roller with a convex running surface and a roller with a concave running surface. The upper rollers are mounted in corresponding bearing blocks. The bearing blocks have threaded sleeves into which the threaded spindles engage. The threaded spindles are driven by stepper motors. The stepper motors are activated as a function of measured unevennesses. Movement of the upper rollers is achieved as a distance proportionally to the measured unevennesses. With a distance-proportional correction, the smoothing is practically achieved in one operating cycle, directly to a desired final measure. The continuously bearing roller pairs result in a method that functions with an extremely low noise level.

Claims12

Dependent claims

In a method for dressing a saw blade, including an endless belt-saw blade (B), wherein the saw blade (B) is routed above a table (3) in a movement direction, wherein after measuring an unevenness of the saw blade (B) then the saw blade (B) is guided along a roller unit (6) which is adjustably led perpendicular to the movement direction and parallel to a plane in which the saw blade (B) runs, wherein each of two roller pairs (24, 26;

25, 27) has an upper roller (26, 27) arranged vertically over a lower roller (24, 25) and one pair of the two roller pairs smooths according to a measured unevennesses, and wherein for each of the two roller pairs (24, 26;
25, 27) a portion of the lower roller (24, 25) is fixed and the upper roller (26,27) is movably guided, an improvement comprising:
moving the two upper rollers (26, 27) directly proportional to a signal corresponding to the measured unevennesses which is a deviation from an ideal plane (I) of the saw blade (B), and in regions of the saw blade (B) without the unevenness the upper roller (26, 27) and the lower roller (24, 25) of each of the roller pairs (24, 26;
25,27) simultaneously bearing on the saw blade (B).

1 more element

Dependencies are inferred from the claim text.