Importance

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Abstract

The disclosure relates to a grinding machine which, in the production of toothed belts, grinds the back surface of a molded and vulcanized cylindrical belt material (also called a slab) to finish the belt material thickness to the specified dimension before the belt material is cut into belts of a desired width. The grinding machine includes a rotary support wherein a belt material to be ground is held between a work roll having a large diameter and an idler shaft having a smaller diameter, and is arranged to face a grinding belt over the contact wheel of a belt grinder in such a way that they may be brought towards and away from each other. A squeezing roll is provided on the side of the direction of rotation of the work roll, and a conforming member in the form of a conforming plate or a roll on the side of the reverse direction of the work roll, via an actuating means respectively with the contacting part of the belt material to be ground on the work roll and the grinding belt on the contact wheel in between in such a way that the squeezing roll and the conforming member may be brought into contact under pressure with the belt material to be ground.

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First Claim