ES127686U - Polishing machine of slabs. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Slab polishing machine, essentially characterized in that it is constituted by a foot of rectangular plant formed by two lateral plates joined together by a stringer welded to them by the upper part of the front, which plates have a rectangular upper notch at their center, and a support on both sides, provided with a bearing above which the rails slide from which the hand-operated mobile bowl or container is provided, which has the shape of a rectangular prism open at the top and has two holes located in its longitudinal axis, provided with flange-bearing bearings inside which can freely rotate vertical bushings that have a workpiece plate at the upper end and at the bottom a wheel with a tire that, in the displacement of the trough, pass through by the free space left by the recesses of the lateral plates of the foot, the mission of these wheels being to put n contact alternately with the smooth cylinder attached to the upper face of a pulley that turns, moved, by means of a trapezoidal belt, by another pulley driven in turn by a motor located in a vertical hollow column placed at the back of the foot, in the which, in addition, there is another motor that, also by means of trapezoidal belts and pulleys, turns an external vertical tube, parallel to the column, which carries in its interior, rotating with it, the tree that at its end the abrasive ring is attached to the bottom, which faces the slab plate that is currently rotating, thus carrying out the polishing work, for which adjustment, manually acting on a flywheel located at the top of the machine, presses a spring that drives arms terminated in two dogs that take a toothed nut on its periphery, whose nut is housed in a thread carved in a central section of the outer surface of the tube, the toothed periphery of said nut meshed with an endless screw mounted on a support externally fixed to the column, so that, driven by a crank, the tube can be raised or lowered, and with it the shaft and the shaft. Grinding wheel, thus graduating the dewatering thereof, the mentioned tree being provided with a longitudinal hole from top to bottom, to allow the passage of the water necessary for grinding, and the machine having been equipped with pushers located inside the column, in order to carry out the lifting of the grinding wheel to change from one slab to another, as well as to keep the bucket fixed while the grinding time lasts, to command which there are pedals placed in the lower part of the front of the foot of the machine. (Machine-translation by Google Translate, not legally binding)