JP2002301653A - Side face shape machining method for stone or the like and grinding wheel used for it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a side face shape machining method for a stone or the like capable of providing a ground surface excellent in smoothness and brightness, having durability and a long service life, easy to fit in a mating shape, economical, and capable of reducing the number of grinding processes without causing trouble in a grinding action even if a part thereof gets damage or the like. SOLUTION: This side face shape machining method for a stone or the like is characterized in that abrasive cloth 3 having a predetermined with is radically planted in a rotary shaft part 2 after side face shape machining by a grinding means, and grinding is executed by this grinding wheel 1 with a surface 6 matching to the side face shape machining surface on one side face thereof formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for processing a side surface of a stone or the like used for stone processing and a polishing wheel used for the method.

[0002]

2. Description of the Related Art Conventionally, plate-like stone materials 4 as shown in FIG.
The side shape processing is performed, for example, by removing a ridge 21 around the stone 4 by a cutter or the like, and then grinding using a sintered metal wheel 22 mixed with diamond powder manufactured according to a predetermined side shape. Then, polishing such as finishing is performed using a rubber wheel 24 to which a diamond sheet 23 as shown in FIG. 5 prepared according to the side shape is attached.

That is, since the shape of the sintered metal wheel 22 as the grinding tool changes due to the continuation of the grinding process, a polishing process such as finishing is performed on the rubber wheel 24 in accordance with the changed shape. It is made effective by utilizing elasticity.

[0004] The sintered metal wheel 2 as the grinding tool
2 and the side shape processing using the rubber wheel 24 as a polishing tool are, specifically, two grinding steps using two types of the sintered metal wheels 22 having different grain sizes, and five types of grinding processes having different grain sizes. The polishing process is performed in five steps using the rubber wheel 24 to which the diamond sheet 23 is attached, that is, a total of seven steps.

[0005] However, the diamond sheet 23 attached to the rubber wheel 24 lacks durability, has a short life, and is poorly applied to a stone material. Polishing becomes impossible, which is uneconomical. At the same time, five types of rubber wheels 24 having different polishing amounts must be prepared as a polishing step.
Due to the elasticity of the rubber, the soft portion of the stone material is selectively shaved, causing a problem that the smooth surface and the sharpness are lost and the product value is affected.

[0006]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention has a durability, a long life, is easily adapted to a mating shape, and hinders the polishing action even if a part of the material is broken. Cost-effective, and can reduce the number of polishing steps.
An object of the present invention is to provide a method for processing a side surface of a stone or the like capable of obtaining a smooth surface and a polished surface excellent in sharpness, and a polishing wheel used in the method.

[0007]

In order to achieve the above object, a method for processing a side surface of a stone or the like according to the present invention according to the first aspect of the present invention is a method for forming a side surface of a polishing material having a predetermined width on a rotating shaft after forming a side surface by a grinding tool. Are radially implanted, and are polished by a polishing wheel having a side surface on which a surface compatible with the side surface processing surface is formed.

The polishing wheel used in the present invention according to the first aspect of the present invention exerts a polishing action sequentially from the tip of the polishing cloth. Even if the portion is broken or the like, the polishing operation is not hindered, the cost is low, and the number of polishing steps can be reduced. Still further, the polishing action is caused by hitting, and the incision is shallow, so that the soft portion of the stone is not unnecessarily polished, and a polished surface excellent in smoothness and sharpness can be obtained.

A polishing wheel used for processing a side surface of a stone or the like according to a second aspect of the present invention has a polishing cloth radially implanted on a rotating shaft portion, and a surface compatible with the side surface processing surface is formed on one side surface thereof. It is characterized by becoming.

The polishing wheel used for processing the side surface of a stone or the like according to the second aspect has durability, a long life, is easily adapted to the counterpart shape, and is partially broken or the like. Since it does not interfere with the polishing action, it is sufficient to prepare about three types of polishing wheels with different grain sizes as the polishing process, and therefore, it is possible to reduce the number of polishing steps of the shape grinding surface, and it is economical. In addition, a smooth surface and a polished surface excellent in sharpness can be obtained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a polishing wheel 1 used for processing a side surface of a stone or the like according to the present invention. A polishing cloth 3 having a predetermined width is radially implanted on a rotating shaft portion 2, and one side of the polishing cloth 3 shown in FIG. A conforming surface 6 is formed with the side surface processing surface 5 applied to the like 4.

FIG. 2 is a sectional view of the polishing pad 3. In the figure, reference numeral 7 denotes a cloth base material made of, for example, 35% cotton and 65% polyester and having water resistance and heat resistance by chemical liquid impregnation.

[0018] Further, 8 is a particle size (#
(# 60 to # 3000) is a water- and heat-resistant thermosetting binder made of a phenol resin, an epoxy resin, a urethane resin, or the like mixed with a selected diamond and other general abrasives 9. The mixing amount of the abrasive 9 is adjusted, for example, in a range of 2 to 65 w% according to the use process.

Next, the manufacturing process of the grinding wheel 1 will be described. First, a large number of the polishing cloths 3 punched out so as to conform to the side surface processing surface 5 applied to the stone material 4 are prepared. Then, the plurality of punched polishing cloths 3 are radially implanted on the rotating shaft portion 2 as shown in FIG.

That is, when the respective polishing pads 3 are punched, the cut recesses 10 are simultaneously formed in the upper and lower ends of the respective polishing pads. On the other hand, a key 12 that fits into each of the notches 10 of the polishing pad 3 is formed in advance on the upper and lower disc-shaped holding brackets 11 that constitute the rotary shaft 2, and the key 12 and the cutting pad of the polishing pad 3 are cut. One end of each of the polishing cloths 3 is held with the recesses 10 fitted and more closely packed.

Next, the upper and lower disk-shaped holding members 11 are vertically oriented, and an adhesive 14 is poured from a rotation shaft mounting hole 13 provided in the upper and lower disk-shaped holding members 11. The upper and lower disk-shaped holding metal members 11 and the abrasive 3 held by the upper and lower disk-shaped metal holding members 11 are slowly rotated so as to impregnate the holding and fixing portions 3a and the cut concave portions 11 of FIG.

As a result, as shown in FIG. 3, when the adhesive 14 is dried, the respective polishing pads 3 are completely fixed to the rotating shaft 2 so that the polishing wheel 1 of the present invention is completed. I do.

[0018]

EXAMPLE In accordance with the above embodiment, a cloth substrate 7 made of 35% cotton and 65% polyester was used, and on one side thereof, water resistance and heat resistance made of the phenol resin, epoxy resin, urethane resin and the like were used. Diamond abrasives # 800, # 1500 and # 3 to a thermosetting binder having
To form three types of polishing cloths 3 by mixing 3 to 10% by weight, respectively, to obtain three types of polishing cloths 3, and to manufacture three types of polishing wheels 1 having different particle sizes using the three types of polishing cloths 3. Using the three types of polishing wheels 1, a comparison was made with the conventional side surface processing method (conventional method).

First, side surface processing was performed using the sintered metal wheel 22 as the grinding tool. In the subsequent polishing step, the conventional method employs the five types of rubber wheels, and the present method employs the three types of abrasive wheels, that is, abrasive particle sizes # 800, # 1500 and # 1500.
There were three steps using 3000 grinding wheels sequentially. In addition, marble, granite, and artificial stone were used as stones. The results are shown in Table 1 below.

[Table 1] According to Table 1, the polishing method of the present application is three polishing steps compared to the five polishing steps of the conventional method, and excellent effects were confirmed in the method of the present invention.

In other words, in the measurement by the gloss meter, 50 to 60% of the conventional method, whereas in the method of the present invention, 60 to 80%.
%, And in the method of the present invention, an excellent finished surface was confirmed without the phenomenon of the crystal of the stone material coming off.

Further, unlike the rubber wheel used in the conventional method to which the diamond sheet is attached, the polishing wheel used in the method of the present invention exerts the polishing action sequentially from the tip of the polishing cloth. It has been confirmed that ten times or more durability can be secured as compared with the rubber wheel used in the conventional method.

The method for processing a side surface of a stone or the like according to the present invention and the grinding wheel used in the method can be applied to chamfering of glass, wood or the like in addition to the stone.

[0023]

The polishing wheel of the present invention exerts a polishing action sequentially from the tip end of the polishing cloth, so that even if a part of the polishing wheel is broken, the polishing action is not hindered and has durability. It has a long life, is easy to adjust to the mating shape, does not hinder the polishing action even if it is partially broken, and is economical.
Since the incision is shallow, there is no need to grind the soft part of the stone more than necessary, and by using it, the number of polishing steps in the side shape processing of the stone can be reduced,
A smooth surface and a polished surface excellent in sharpness can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a polishing wheel used in a side shape processing method of the present invention.

FIG. 2 is a partial sectional view of a polishing cloth used for the polishing wheel of the present invention.

FIG. 3 is a partial cross-sectional view of the polishing wheel of the present invention.

FIG. 4 is an explanatory view of a conventional shape grinding process.

FIG. 5 is a perspective view of a rubber wheel used in a conventional polishing process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Polishing wheel 2 Center shaft part 3 Polishing cloth 6 Suitable surface

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) // B24B 7/22 B24B 7/22 F term (reference) 3C043 BB01 CC06 CC13 EE03 3C049 AA06 AA09 CA04 CB01 CB04 CB05 3C058 AA06 AA09 CA04 CB01 CB03 CB05 3C063 AA06 AB03 BB02 BC03 BE04 BG01 BG22 EE01

Claims (2)

[Claims] After a side shape is processed by a grinding tool, a polishing cloth having a predetermined width is radially implanted on a rotating shaft portion, and is polished by a polishing wheel having a side surface on which a surface compatible with the side surface processing surface is formed. A method for processing a side surface of a stone or the like, characterized by performing the following. 2. A side surface processing of a stone or the like, characterized in that a polishing cloth of a predetermined width is radially implanted on a rotating shaft portion, and a surface adapted to the side surface processing surface is formed on one side thereof. The polishing wheel to use.