| 摘要 |
The vibratory polisher system of this embodiment comprises six sub-systems: casting, polish pan assembly, base assembly, vibrating table assy (not a part of this invention), pan bracket assembly, casting circulator system, and horizontal slide assembly. The casting is comprised of an assembly of flat-bottomed rocks cemented into a flat-bottomed disc having a propulsion attachment. The casting circulates in a polish pan having a flexible bottom containing raised areas which put pressure on isolated areas of the casting bottom. There is an area at the pan center that can be raised by means of a gearing system to put pressure on the center area of the casting. The base assembly supports the polish pan and provides the bolt-heads that cause the raised areas in the polish pan. The base assembly also provides attachment points for the pan bracket assemblies which pull the polish pan down onto the bolt-heads thus causing the raised areas in the pan bottom. The pan bracket assemblies do not put any holes in the polish pan, thus preventing water leakage. There is a center-bump bolt whose height is controlled by a gearing system. This center-bump bolt causes the center of the polish pan to be either higher or lower. This controls the polishing or non polishing of the center portion of the casting. The vibrating table (not a part of this invention) supports the base and polish pan and provides vibration to assist in circulating the casting around the pan, as well as providing a rubbing motion to polish the casting. The circulator system circulates the casting around the polish pan and rotates the casting on its own axis. As the casting circulates and rotates, its bottom area passes over the raised areas of the pan in a random pattern, thus eventually polishing the entire casting surface. The casting is supported by a support box which allows the casting to be moved linearly in the pan. This allows polishing to occur over any areas that may be missed during casting circulation. A procedure for preparing a casting is presented.
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