JP2008213048A - Polishing method using rotating buff body for polishing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a buff polishing method using a buff body for coating finishing polishing or rough finishing polishing to suppress generation of buff marks by suppressing heat generation of a polishing surface. <P>SOLUTION: In this buff body for polishing for polishing a surface of an object to be polished by bringing a polishing surface of a disc body into contact with the surface of the object by rotating the disc body, the disc body has a shape of the polishing surface formed by cutting a part of a region of 2 to 40% of a radius from an outer periphery of the disc toward a center part. The polishing surface of the disc body is made of a material chosen from napped cloth, wool, cotton, felt, flannel cloth, nonwoven fabric, towel cloth and sponge. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a rotating buff for polishing that can be used for polishing for all paint finishes such as automobiles, trains, ships, airplanes, other transport aircraft, furniture, pianos, buildings, and other polishing applications.

Conventional polishing techniques such as paint finish use a rotating buff with a structure in which surface layer materials such as woolen raised cloth, felt, flannel cloth, towel cloth, napped cloth, and non-woven cloth are attached to a cushion material such as sponge. Then, the polishing surface containing abrasive particles in the buff is held and rotated while being rubbed against the coating surface or the like to polish the coating surface or the like.
The polishing surface of this rotary buff is usually circular, and the closer to the outer periphery of the circle, the stronger the moment of inertia acts, so the polishing force is stronger. On the other hand, since frictional force is strong, frictional heat is likely to be generated, especially on the painted surface, the surface temperature rises, the coating film softens, and deep polishing scratches called buffs often occur. Therefore, the finishing process may take time.
As a technique related to the shape of the buff, which has been conventionally performed to reduce the buffing, an inclination is provided so that the thickness of the cushion portion of the outer peripheral portion of the disk gradually decreases in the outer peripheral direction, thereby reducing the frictional force of the outer peripheral portion. There is a method, but the effect was not enough. In addition, there is a method of wrapping it in a furoshiki shape so that the edge part of the outer periphery can not be made, and rounding the edge, but the half where the edge is not formed, the peripheral part becomes thick, and there was no sufficient effect for reducing buffing eyes .

The inventors have invented a rotating buff body that does not leave buffs by pressing a heating iron against the surface of the urethane sponge buff body to form a slit in the radial direction from the rotating shaft toward the circumference. However, it is difficult to process with materials other than sponge. Further, the present inventor has already provided a polishing buff body capable of polishing the surface of the object to be polished by rotating the disk body to bring the outer surface of the disk body into contact with the surface of the object to be polished. It is a disk body with a shape cut out part of the area of 2 to 40% of the radius toward, and the material constituting the outer peripheral surface of the disk body is raised cloth, wool, cotton, felt, flannel cloth, non-woven cloth, towel cloth, A registered utility model has been obtained for a polishing buff characterized in that it is made of a material selected from sponges (see Patent Document 2).
Utility model registration No. 2587071 Utility model registration No. 3125323

In a conventional rotating buff with a circular polishing surface, the abrasive particles act as floating abrasive grains while the polishing agent adheres and the polishing surface is wet, so buffs are less likely to occur, but as polishing proceeds When polishing debris reaches the polished surface, heat dissipation is hindered, and the polished surface is rapidly dried by frictional heat, the abrasive particles are fixed, and the polished surface is softened by heat, which is extremely susceptible to polishing scratches. It becomes a situation. The present invention has been made for the purpose of solving the above-mentioned problems, and is used for rough polishing buff bodies and finish polishing for suppressing generation of buffing by suppressing heat generation on the polishing surface. An object of the present invention is to provide a buffing method using a buff body.

Various studies have been made to achieve the above object, and the present invention has been achieved. That is, the present invention provides a polishing buff that can polish the surface of the object to be polished by rotating the disk and bringing the polishing surface of the disk into contact with the surface of the object to be polished. It is a disk body of a shape that cut off a part of the area of 2 to 40% of the radius toward the part, and the material constituting the polishing surface of the disk body is raised cloth, wool, cotton, felt, flannel cloth, nonwoven cloth, It is a buffing method using a polishing buff body characterized by comprising a material selected from toweling and sponge. In addition, the present invention uses a polishing buff characterized in that a shape obtained by cutting a part of a region having a radius of 2 to 40% from the outer periphery of the disk toward the center is formed by repeating the figure. be able to. Furthermore, the present invention can be a buffing method using a polishing buff body, wherein a part of the shape is cut into a mountain shape. Moreover, this invention can be made into the buff grinding | polishing method using the buff body for grinding | polishing characterized by making the shape which cut off a part into a gear type. Furthermore, the present invention can provide a buffing method using a polishing buff, wherein a part of the shape is petal shaped. Further, the present invention provides a buffing method using a polishing buff body, wherein a partly cut shape is a regular polygon made of any one of a regular pentagon, a regular hexagon, and a regular octagon. it can. Further, the present invention provides a buff using a polishing buff, wherein a partly cut shape is a constant-width figure made of either a rouleau triangle, a roule pentagon, or an roule heptagon. A polishing method can be used.
Moreover, this invention is a buffing method which can use these polishing buff bodies as a polishing buff body of the coating surface of a motor vehicle body.

The buffing method using the polishing buff of the present invention can suppress generation of buffing by suppressing heat generation on the polishing surface, and is confirmed to be effective as a buff for rough polishing and finish polishing. did it.

In the present invention, the material constituting the polishing surface of the disc body is not particularly limited as long as the surface to be polished is not extremely damaged, and any material such as natural fiber, synthetic fiber, and foam may be used. Various materials such as a brushed cloth, wool, cotton, felt, flannel cloth, non-woven fabric, towel cloth, and sponge can be used.
Further, in the disk-shaped rotating buff used in the buffing method of the present invention, it is particularly preferable to use a disk body having a shape in which a part of a region having a radius of 2 to 40% is cut from the outer periphery to the center. However, when the radius is smaller than 2% from the outer periphery of the disk toward the center, the effect of suppressing the occurrence of buffing is poor, and when the radius is larger than 40% from the outer periphery of the disk toward the center, polishing is performed. Power is reduced.
Further, a typical buff body (disk body) 2 used in the buffing method of the present invention can be attached to the rotating body 1 via a magic tape (registered trademark) or the like, as shown in FIG. For example, a Velcro tape (registered trademark) 1-1 (male) attached to the rotating body 1 and a Velcro tape (registered trademark) 2-1 (female) attached to a buff body (disk body) 2 are used for pressure bonding. Can be fixed.

Furthermore, as shown in the upper part of FIG. 1, the disk body has a buff body (disk body) suitable for finishing polishing if it is made of a soft material such as urethane foam and is not squared. Further, as shown in the lower part of FIG. 1, a cross section of the disc body is roughened by attaching a wool material or the like to the polished surface and providing an inclination so that the thickness of the cushion portion of the disc outer peripheral portion becomes gradually thinner in the outer peripheral direction. It becomes a buff body (disc body) suitable for polishing.
However, even a buff body (disk body) suitable for finish polishing can be provided with an inclination particularly when soft foamed urethane is used. In general, the taper process for inclining the buff body is performed by making the material of the buff body a certain size in advance and then tapering the periphery of the material. By punching into a fixed-width figure type consisting of either a regular polygon type consisting of any one of a shape, a petal shape, a regular pentagon, a regular hexagon, or a regular octagon, a Rouleau triangle, a Roule pentagon, or a Roule heptagon It is preferable to manufacture.

Next, a regular polygonal shape comprising any one of a mountain shape, a gear shape, a petal shape, a regular pentagon, a regular hexagon, and a regular octagon, which is a shape obtained by cutting a part from the outer periphery to the center of the disk used in the present invention. FIG. 2 to FIG. 3 show a fixed-width graphic type consisting of either a Rouleaux triangle, an Rouleux pentagon, or an Roule heptagon. It has been found that the petal shape shown in Fig. 2 with a part cut out from the outer periphery to the center of the buff disk has a good reputation in terms of performance and commercial value. Next, the present invention will be described in more detail with reference to examples based on petals, but the present invention is not limited to these examples.

A woolen woolen cloth was bonded to one side of the urethane sponge, and processed into a buff having a thickness of 20 mm, a polished surface radius of 85 mm, and a surface attached to the rotating body with a radius of 75 mm. A petal shape as shown in FIG. 4 was obtained by cutting a part from the outer periphery of the buff disk toward the center. The height (valley depth) of the petal-type petals was 10 mm (about 11% of the radius).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

A woolen woolen cloth was bonded to one side of the urethane sponge, and processed into a buff having a thickness of 20 mm, a polished surface radius of 85 mm, and a surface attached to the rotating body with a radius of 75 mm. A petal shape as shown in FIG. 4 was obtained by cutting a part from the outer periphery of the buff disk toward the center. The height (valley depth) of the petal-shaped petals was 20 mm (about 23% of the radius).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

A woolen woolen cloth was bonded to one side of the urethane sponge, and processed into a buff having a thickness of 20 mm, a polished surface radius of 85 mm, and a surface attached to the rotating body with a radius of 75 mm. A petal shape as shown in FIG. 4 was obtained by cutting a part from the outer periphery of the buff disk toward the center. The height of the petal-type petals (depth of the valley) was 30 mm (about 35% of the radius).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

A woolen raised cloth was bonded to one side of the urethane sponge, and processed into a buff having a thickness of 20 mm, a polished surface having a radius of 90 mm, and a surface attached to the rotating body having a radius of 75 mm. A petal shape as shown in FIG. 4 was obtained by cutting a part from the outer periphery of the buff disk toward the center. The height (valley depth) of the petal-type petals was 20 mm (about 22% of the radius).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

A woolen raised cloth was bonded to one side of the urethane sponge, and processed into a buff having a thickness of 20 mm, a polished surface having a radius of 80 mm, and a surface attached to the rotating body having a radius of 75 mm. A petal shape as shown in FIG. 4 was obtained by cutting a part from the outer periphery of the buff disk toward the center. The height of the petal-type petals (depth of the valley) was 20 mm (about 25% of the radius).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

The urethane sponge was processed into a buff having a thickness of 35 mm, a polished surface having a radius of 85 mm, and a surface attached to the rotating body having a radius of 75 mm. A petal shape as shown in FIG. 4 was obtained by cutting a part from the outer periphery of the buff disk toward the center. The height of the petal-type petals (depth of the valley) was 10 mm (about 11% of the radius).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

A urethane sponge was prepared and processed into a buff on a cylinder having a thickness of 35 mm and a radius of 85 mm.
A petal shape as shown in FIG. 4 was obtained by cutting a part from the outer periphery of the buff disk toward the center. The height (valley depth) of the petal-type petals was 30 mm (about 33% of the radius).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

(Comparative Example 1)
As is conventionally done, a woolen woolen cloth is bonded to one side of a urethane sponge, and a buff body with a thickness of 20 mm, a polished surface radius of 85 mm, and a radius attached to a rotating body of 75 mm (part of the radius is completely It was not cut out).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

(Comparative Example 2)
A woolen woolen cloth was bonded to one side of the urethane sponge, and processed into a buff having a thickness of 20 mm, a polished surface radius of 85 mm, and a surface attached to the rotating body with a radius of 75 mm. A petal shape as shown in FIG. 4 was obtained by cutting a part from the outer periphery of the buff disk toward the center. The height (valley depth) of the petal-type petals was 40 mm (about 47% of the radius).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

(Comparative Example 3)
As is conventionally done, a urethane sponge was prepared and processed into a buff body on a cylinder having a thickness of 35 mm and a radius of 85 mm (the radius was not cut off at all).
As shown in FIG. 1, it attached to the rotary body via the magic tape (trademark).

An automobile bonnet was painted to a black metallic specification using a paint for repairing automobiles (Admira Paint made by Nippon Paint), then water-polished using water resistant paper # 2000 to adjust the coating skin. Next, removal of paper scratches (rough polishing) was performed using the rough polishing compound (Unicon FMC8020 / manufactured by Ishihara Pharmaceutical Co., Ltd.) on the rough polishing buffs of Examples 1 to 5 and Comparative Examples 1 and 2. The appearance of paper scratches and buffing scratches were visually evaluated.
Further, for the coating film after rough polishing, buffing scratches are removed using finishing compounds (Unicon FMC8030 / manufactured by Ishihara Yakuhin Co., Ltd.) as finishing buffs of Example 6, Example 7 and Comparative Example 3. The buff scratches and the finished state were visually evaluated.
Further, the finished surface was exposed to a mercury lamp and visually evaluated for the presence or absence of fine polishing scratches (ring marks).
Moreover, about each buff body, the temperature rise rate (degreeC / sec) of the coating-film surface immediately after grind | polishing the same location for 5 second without using a compound was measured using the surface thermometer.

Each evaluation result is shown in Table 1.

(Evaluation criteria)
(1) Defects of huff scratches ○: No huff scratches
△: There are almost no scratches
×: Huff scratches remain (2) Buff scratch occurrence state ○: Buff scratches remain fine and uniform
Δ: Rough scratches are mixed with buff scratches
×: Buff scratches are conspicuous (3) Buff scratches removed ○: No buff scratches
Δ: Some buffs remain
×: Buff scratches remain (4) Final finished state ○: Finished with high gloss
Δ: Slightly inferior in gloss
×: Inferior gloss (5) Presence of link mark ○: No link mark
△: Link mark is slightly left
×: Link mark remains (6) Surface temperature rise rate (℃ / sec)

The buffing method using the polishing buff body of the present invention can easily polish any painted surface as long as it is a painted surface. It can be expected to be used in many industries including industry.

Installation structure of buff body (disk body) and rotating body Example of buff body (disk body) Example of buff body (disk body) Appearance of buff body (petal type) of Example

Explanation of symbols

1 Rotating body 1-1 Velcro (registered trademark) (female) attached to a rotating body
2 Disc body (buff body)
2-1 Magic tape (registered trademark) (male) attached to a disk (buff)

Claims (8)

In a polishing buff body that can polish the surface of the object to be polished by rotating the disk body and bringing the polishing surface of the disk body into contact with the surface of the object to be polished, the shape of the polishing surface has a radius from the outer periphery of the disk toward the center. It is a disc body with a part cut out from 2 to 40%, and the material constituting the polished surface of the disc body is selected from brushed fabric, wool, cotton, felt, flannel cloth, non-woven fabric, towel cloth, sponge A buffing method using a polishing buff, characterized by comprising a material. 2. The polishing buff body according to claim 1, wherein a shape obtained by cutting a part of a region having a radius of 2 to 40% from the outer periphery to the center of the disk is formed by repeating a figure. Buffing method. The buffing method using the polishing buff body according to claim 2, wherein a shape obtained by cutting out a part is a mountain shape. The buffing method using the buffing body for polishing according to claim 2, wherein a shape obtained by cutting a part is a gear type. The buffing method using the buffing body for polishing according to claim 2, wherein a shape obtained by partially cutting out is a petal shape. 3. The buffing method using a polishing buff according to claim 2, wherein the part of the shape is a regular polygon consisting of any one of a regular pentagon, a regular hexagon, and a regular octagon. 3. A buff using a polishing buff according to claim 2, wherein the cut-out shape is a constant-width figure made up of either a rouleau triangle, a roule pentagon, or an roule heptagon. Polishing method. A buffing method for performing the buffing method according to claim 1 on a body painted surface of an automobile.

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