Deburrer device

An apparatus for removing dross from the bottom front and back edges of torch cut slabs of continuous cast steel being conveyed upon a line of rollers which comprises:

• a pair of blade supports mounted back to back upon and separated by a rotatable spindle located and journaled in bearings at an interior angle of about 6°-15° between and below two adjacent line rollers;
• a pair of opposed parallel dross removing blades having their back edges mounted upon the blade supports and their front edges having a downwardly sloped flat top having about a 90° vertical end, which upon rotation of the blade support from the horizontal position, the downwardly sloped flat top is in horizontal contact with the bottom of a slab;
• at least one vertical dross cutting blade mounted on the blade supports at an angle perpendicular to the line of rollers, being flush therewith, and extending beyond the vertical end of the dross removing blades;
• a power source for rotating the spindle;
• and,
• control means for rotating the dross removing blades to have their flat top contact the bottom of the slab and be positioned so that the vertical ends shave the dross from the ends of slabs as they move on the line of rollers and to rotate the spindle sufficiently to remove any dross which has fallen thereon.

An apparatus for removing dross from the bottom front and back edges of torch cut slabs of continuous cast steel being conveyed upon a line of rollers which comprises:

• a pair of blade supports mounted back to back upon and separated by a rotatable spindle located and journaled in bearings at an interior angle of about 6°-15° between and below two adjacent line rollers;
• a pair of opposed parallel dross removing blades having their back edges mounted upon the blade supports and their front edges having a downwardly sloped flat top, having a 90° vertical end which upon rotation of the blade support from the horizontal position, the downwardly sloped flat top is in horizontal contact with the bottom of a slab;
• at least one vertical dross cutting blade mounted on the blade supports at an angle perpendicular to the line of rollers and extending beyond the vertical end of the dross removing blades;
• a drive motor for rotating the spindle;
• computer control means for rotating the dross removing blades to have their flat top contact the bottom of the slab and be positioned so that the vertical ends shave the dross from the ends of slabs as they move on the line of rollers and to rotate the spindle sufficiently to remove any dross which has fallen thereon;
• and,
• a system for accurately aligning the blade support in a horizontal position comprising:
• a means of directional and speed control for the motor;
• one set of three raised vertical bands located on the side of the vertical disk corresponding to the horizontal position of the blade supports to provide input to two sets of three proximity position limit switches, which sets are located adjacent to each other on opposite sides of the vertical disk to accurately control the speed and the direction and the rotational slowdown for either clockwise or counter clockwise rotation of the blade supports just prior to reaching the horizontal position.