JPS5817727Y2 - stone polishing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stone polishing machine useful for polishing tombstones and the like.

When a stone polishing machine equipped with a large number of polishing tips is used for a long period of time, the polishing tips become worn and it becomes necessary to replace the tips.

In conventional stone polishing machines, a single polishing disc with fixed polishing chips is usually mounted on a rotating shaft via a flanged cylinder, etc., so converting the polishing chips requires the entire polishing disc. It is necessary to replace the polishing disk, and the polishing disk is considered disposable.

However, since a considerable load is applied to the stone polishing machine,
The wall thickness is sufficiently large, and it is uneconomical to make the entire polishing disk disposable.

In addition, there is a device that allows only the worn polishing tip to be replaced, but the tip is not only fixed to the polishing disk by a fastening member, but also bonded to the polishing disk to improve resistance to external forces. Because of this, it takes time to remove the chips from the polishing disc, and it is also necessary to drill numerous holes to secure the chips to the thick polishing disc.
Moreover, it has the disadvantage of requiring the use of expensive and time-consuming fastening members.

The present invention solves the above-mentioned drawbacks by dividing the polishing disk into two parts, and will be described in detail below with reference to the accompanying drawings.

Reference numeral 1 denotes a vertically directed rotating shaft driven by an appropriate power source, and a cylindrical body 2 is fitted onto the rotating shaft 1 from below.

Reference numeral 3 denotes a circular flange extending outward from the lower end of the cylindrical body 2, and a suitable number of through holes 4 are bored in the flange 3.

Reference numeral 5 denotes a thick circular substrate made of a hard material such as acrylic resin or metal, which is concentric with the cylindrical body 2 and has a circular hole 6 that matches the inner hole of the cylindrical body 2. A screw hole 7 having the same diameter is bored at a location corresponding to the through hole 4 .

The substrate 5 and the cylindrical body 2 are integrally connected by bolts 8 inserted into both holes 4 and 7.

Reference numeral 9 denotes a screw hole drilled at a suitable position in the substrate 5.

Reference numeral 10 denotes a thin circular mounting plate having approximately the same diameter as the circular board 5 and having a circular hole 11 in the center that matches the circular hole 6, and corresponds to the screw hole 9 of the mounting plate 10. A through hole 12 of the same diameter is bored at the location.

The mounting plate 10 and the board 5 are integrally fastened by bolts 13 inserted into both holes 12 and 9 from below, and both circular holes 6
, 11 form an escape hole for polishing water.

14 is a screw hole drilled at a suitable location on the mounting plate 10;
A large number of polishing chips 15 are oriented radially at key points on the lower surface of the mounting plate 10 and are bonded with epoxy resin or the like.
The screw 16 screwed through the screw hole 14 increases the mounting strength.

Since the present invention is configured as described above, when the polishing tip 15 is worn out, the bolt 13 is removed and the used mounting plate 10 is replaced with a separately manufactured polishing tip 15.
It is economical because it is only necessary to replace the mounting plate 10 with the attached mounting plate 10, and the thick substrate 5, which forms the majority of the polishing disk, can be continued to be used.

In addition, when attaching the polishing chip to the polishing disk, as in the past, a long hole is drilled through the entire polishing disk.
There is no need to use long and expensive fastening members, which is advantageous in terms of workability.

[Brief explanation of the drawing]

FIG. 1 is a bottom view showing an embodiment of a stone polishing machine according to the present invention, and FIG. 2 is a vertical cross-sectional view taken along the line II--II in FIG. 1...rotating shaft, 2...cylindrical body, 3...
...Flange, 4...Through hole, 5...
・Substrate, 6...Circular hole, 7...Threaded hole, 8
...Bolt, 9...Threaded hole, 10...
...Mounting plate, 11...Circular hole, 12...
・Through hole, 13... Bolt, 14... Hole, 15... Chip, 16... Screw.

Claims (1)

[Scope of utility model registration request] A circular mounting plate with a large number of polishing chips fixed to the bottom surface is superposed and fastened to a circular substrate having approximately the same diameter as the mounting plate, and the substrate is driven by an appropriate power source. A stone polishing machine fixed to a rotating shaft.