JP3053622B1 - Flap wheel - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To realize features of both a flap wheel and a polishing roll, and to polish a polished surface uniformly and efficiently. SOLUTION: A flap wheel is formed by laminating a plurality of non-woven sheets 1 cut into a square shape on a surface of a core material 2 having an outer peripheral surface as a column in a circumferential direction of the core material surface and forming an inner core material. It is fixed to the surface, and the outer peripheral surface of the laminated nonwoven fabric sheet 1 is a cylindrical polishing surface 3. Further, the flap wheel has a plurality of nonwoven fabric sheets 1 laminated in the circumferential direction adhered by a predetermined number to form a nonwoven fabric block 4. This nonwoven fabric block 4 is fixed to the surface of the core material without bonding the laminated surface with the adjacent nonwoven fabric block 4. Further, the flap wheel has at least four or more nonwoven fabric blocks 4 fixed to the surface of the core material 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention mainly relates to metals,
The present invention relates to a flap wheel used for polishing a surface of plastic, wood, or the like.

[0002]

2. Description of the Related Art As shown in the perspective view of FIG. 1, a flap wheel is manufactured by fixing a large number of nonwoven fabric sheets 1 cut into strips to a cylindrical core material 2 in a radial manner. The non-woven fabric sheet 1 is formed so that no gap is formed during lamination.
One end, which is laminated in the circumferential direction on the surface of the core material 2 in the circumferential direction and is inside the cylinder, is adhered and fixed to the surface of the core material 2. The outer surface of the nonwoven fabric sheet 1 fixed to the core material 2 in a cylindrical shape is processed into a cylindrical shape to form a polished surface 3.

In the flap wheel having this structure, a large number of nonwoven fabric sheets 1 cut into a square shape are laminated, and these are arranged in a cylindrical shape so as to contact the surface of a core material 2. Manufactured by bonding to the surface. The nonwoven fabric sheet 1 adhered to the core material surface is fixed to the surface of the core material 2 in a slightly compressed state so that no gap is formed during lamination.

[0004]

When the surface of the object to be polished such as metal is polished by rotating the flap wheel having the structure shown in FIG. 1, the tip of the nonwoven fabric sheet 1 is curved as shown in FIG. . Since the flap wheel polishes the nonwoven fabric sheet 1 by elastically deforming it elastically, the flap wheel has a feature that the polished surface having some unevenness can be uniformly polished. In addition, since the nonwoven fabric sheet 1 is elastically deformed, the flap wheel can be strongly pressed and strongly polished, and the flap wheel can be weakly pressed and lightly polished. That is, there is also a feature that the polishing state can be adjusted by a force pressing the flap wheel against the workpiece.

[0005] By taking advantage of this feature, flap wheels are used for various purposes such as hairline processing on stainless steel surfaces. Deformation of the nonwoven fabric sheet realizes the above-mentioned features, but has a disadvantage that the polishing force is weaker than other polishing rolls due to this unique physical property. This is because when the sheet is strongly pressed and rotated, the nonwoven fabric sheet is greatly deformed and the pressing force cannot be increased. Furthermore, since the surface of the object to be polished is polished while the nonwoven fabric sheet is deformed, there is a disadvantage that the life is shortened. In particular, if there is a projection on the surface of the object to be polished, there is a disadvantage that the life is extremely shortened.

The disadvantage that the polishing force is weak can be solved by, for example, a polishing roll in which the nonwoven fabric sheet 1 is cut into a disk shape and laminated in the axial direction, as shown in FIG. Since the polishing roll having this structure cuts the nonwoven fabric sheet 1 into a disc shape and adheres and fixes the laminated surface, the polishing roll can be compressed and bonded in a laminated state to increase the polishing force to a high density. Therefore, an excellent polishing force can be obtained. However, when the surface of a metal or the like is polished with the polishing roll having this structure, there is a disadvantage that a streak occurs between the laminations of the nonwoven fabric sheet 1. This is because the polishing force cannot be made uniform between the nonwoven fabric sheets 1 and between the nonwoven fabric sheets 1.

This disadvantage is described in, for example, Japanese Patent Application Laid-Open No. 60-20 / 1985.
As described in JP-A-864-86 and JP-A-56-38766, the nonwoven fabric sheet is cut into an elongated band shape, and the nonwoven fabric sheet is spirally wound around the surface of the core material to form a cylindrical shape. Can be eliminated with a polishing roll. The polishing roll having this structure can be wound at a high density by winding the nonwoven fabric sheet while pulling it around the core material. The polishing roll having this structure can polish a surface of a metal or the like so as not to cause streaks.

[0008] However, the polishing roll of this structure has
Since the surface of the nonwoven fabric sheet is a polished surface as the outer peripheral surface, the polishing force is weakened. This is because the nonwoven fabric sheet has a property that the abrasive force of the cut cross section is stronger than the surface of the nonwoven fabric sheet.

Further, Japanese Unexamined Utility Model Publication No. 6-50754 discloses, as shown in FIG. 4, a non-woven fabric sheet 1 cut into a long and narrow strip shape, while being spirally wound around the surface of a core material 2 to form a tubular shape. A polishing roll for bonding the inner surface to the surface of the core material 2 has also been developed. Since the surface of the polishing roll has a spiral boundary on the surface of the nonwoven fabric sheet 1, it is possible to eliminate the formation of streaks on the surface to be polished when rotating and polishing.

[0010] However, the polishing roll of this structure has
As in the case of the polishing roll of FIG. 3 in which a plurality of nonwoven fabric sheets 1 are laminated in the axial direction, the nonwoven fabric sheet 1 is hardly deformed when pressed against the surface of metal or the like, so that the surface to be polished is uniformly polished. Difficult to do. Because the surface of the polishing roll is not elastically deformed, the polishing force is different between the strongly pressed portion and the weakly pressed portion.

Further, a flap wheel in which a nonwoven fabric sheet is radially fixed to a core material surface and an adjacent nonwoven fabric sheet is adhered on a laminated surface has been developed. Since the flap wheel of this structure adheres the nonwoven fabric sheet, the nonwoven fabric sheet cannot be deformed flexibly, and is cut into a disk shape, and the nonwoven fabric sheet is laminated in the axial direction and fixed to the surface of the core material. Has the same disadvantage as that described above, that is, it is difficult to uniformly polish the surface to be polished. This is because the surface of the polishing roll does not elastically deform.

The present invention has been developed for the purpose of solving such disadvantages of the conventional polishing roll and flap wheel. An important object of the present invention is to provide a flap wheel that realizes the characteristics of both a conventional flap wheel and a grinding roll.

Another important object of the present invention is to provide a flap wheel which can polish a surface to be polished uniformly and efficiently, and can efficiently mass-produce it.

[0014]

A flap wheel according to the present invention comprises a plurality of non-woven fabric sheets 1 cut into a rectangular shape on a surface of a core material 2 having a cylindrical outer peripheral surface. And the inner side is fixed to the surface of the core material, and the outer peripheral surface of the laminated nonwoven fabric sheet 1 is a cylindrical polishing surface 3.

Further, in the flap wheel according to the first aspect of the present invention, the plurality of nonwoven fabric sheets 1 laminated in the circumferential direction have abrasive grains adhered to the surface of the fiber via an adhesive.
Therefore, apply the adhesive and press
Then, a predetermined number of sheets are bonded to form a nonwoven fabric block 4. This nonwoven fabric block 4 is fixed to the surface of the core material without bonding the laminated surface with the adjacent nonwoven fabric block 4. Non-woven fabric block 4 fixed to the core material surface
Is the radius of the core material 2 between the adjacent nonwoven fabric blocks 4
Laminated in a state where it is in the direction, and tighten this with the forming cylinder 5
Then, it is bonded and fixed to the surface of the core material 2. Further, in the flap wheel of the present invention, at least four or more nonwoven fabric blocks 4 are fixed to the surface of the core material 2.

According to a second aspect of the present invention, there is provided a flap wheel.
A nonwoven fabric block 4 formed by laminating and bonding 2 to 40 nonwoven fabric sheets 1 is fixed to the surface of a core material.

Further, in the flap wheel according to the third aspect of the present invention, the nonwoven fabric block 4 formed by laminating and bonding two to forty nonwoven fabric sheets 1 is fixed to the surface of the core material.
When the outer diameter of the flap wheel is 10 to 50 cmφ, 4
Up to 50 nonwoven fabric blocks 4 are fixed to the surface of the core material.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below illustrate a flap wheel for embodying the technical idea of the present invention, and the present invention does not specify the flap wheel as follows.

Further, in this specification, in order to make it easier to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as “claims” and “ In the column of “means”. However, the members described in the claims are not limited to the members of the embodiments.

The flap wheel shown in FIG. 5 is obtained by laminating a plurality of non-woven sheets 1 cut in a square shape on the surface of a core material 2 having a cylindrical outer peripheral surface in the circumferential direction of the core material surface. Is fixed to the surface of the core material, and the outer peripheral surface of the laminated nonwoven fabric sheet 1 is a cylindrical polishing surface 3.

Further, in the flap wheel shown in FIG. 1, a plurality of nonwoven fabric sheets 1 laminated in the circumferential direction are bonded by a predetermined number to form a nonwoven fabric block 4, and the nonwoven fabric blocks 4 are bonded together. But fixed to the surface of the core material.

The nonwoven fabric sheet 1 is adhered abrasive grains on the surface of the fibers through the adhesive. As the abrasive grains, inorganic abrasive grains such as silicon carbide and alumina are used. The abrasive grains are kneaded with a liquid or paste-like adhesive,
Attached to the surface of the fiber with the adhesive. Further, after the adhesive is applied to the surface of the fiber, abrasive particles can be sprayed and adhered in an uncured state of the adhesive. To apply the adhesive to the fibers of the nonwoven fabric, the adhesive is applied by spraying the surface of the nonwoven fabric, or the nonwoven fabric is adhered by dipping in the adhesive. The nonwoven fabric to which the adhesive has been applied is squeezed with a roller, for example, to remove the excess adhesive, and the fiber surface is coated with the adhesive. Further, in the nonwoven fabric, abrasive grains can be embedded in the fiber in the step of producing the fiber, for example, in the step of turning the plastic into a thread. Further, the plastic can embed the abrasive grains in the fiber, and attach the abrasive grains to the surface.

As the adhesive for attaching the abrasive grains, a phenol resin, an epoxy resin, a silicone resin, a urethane resin, or the like is used alone or in combination. The adhesive that bonds the abrasive grains to the fibers can be used in combination with the adhesive that bonds the intersections of the fibers of the nonwoven fabric. Nonwoven fabric is an adhesive that bonds abrasive grains,
Join the fiber intersections. However, for the nonwoven fabric, an adhesive for bonding the intersections of the fibers and an adhesive for attaching the abrasive grains can be used separately.

The non-woven fabric has a fiber thickness of 6 to 330 denier. However, in the flap wheel of the present invention, for example, 6 to 170 denier, preferably 10 to 40 denier, more preferably 10 to 15 denier is used for the nonwoven fabric fiber.

The nonwoven fabric to which the abrasive grains have been attached is laminated and bonded as shown in FIGS.
As shown in (1), the nonwoven fabric block 4 is cut into a square shape. The nonwoven fabric block 4 is formed by laminating and bonding ten nonwoven fabrics. However, the nonwoven fabric block 4 may be formed by laminating and bonding, for example, 2 to 40, preferably 5 to 20 nonwoven fabrics. The nonwoven fabric block 4 can increase the polishing force of the flap wheel by increasing the number of laminated nonwoven fabrics. Conversely, reduce the number of laminated nonwoven fabrics,
The flap wheel can be flexible and easily elastically deformed. For this reason, the flap wheel of the present invention determines the number of laminated nonwoven fabrics in consideration of the required polishing force and flexibility.

The laminated nonwoven fabric is made of phenolic resin, epoxy resin,
Use silicone resin, urethane resin, or the like. Further, these adhesives can be used alone or in combination. The adhesive for laminating the nonwoven is applied to the surface of the nonwoven. The non-woven fabric coated with the adhesive is shown in FIG.
The layers are laminated as shown in FIG. 4 and pressed in the laminated state, and bonded in the laminated state.

The non-woven fabric laminated and bonded is cut into a square shape as shown in FIG.
The cut nonwoven fabric block 4 has a cut surface on one side
And the other cut surface is a polished surface 3 on the outer periphery of the flap wheel.

After the adhesive is applied to the inner surface of the nonwoven fabric block 4 to be adhered to the core material 2, the nonwoven fabric sheet 1 is circumferentially laminated on the surface of the core material 2 as shown in FIG. In other words, the nonwoven fabric blocks 4 are laminated so that the boundary surface between the adjacent nonwoven fabric blocks is directed in the radial direction, and is fastened by the forming cylinder 5 to be adhered to the surface of the core material 2. The molding tube 5 holds the nonwoven fabric block 4 in a state of being tightened to the surface of the core material 2 until the adhesive adheres and fixes the nonwoven fabric block 4 to the surface of the core material 2.

The nonwoven fabric block 4 laminated and fixed on the surface of the core material 2 is at least four blocks or more. If the number of nonwoven fabric blocks 4 fixed to the surface of the core material 2 is less than 4 blocks, each nonwoven fabric block 4 becomes thick and becomes extremely difficult to deform, and loses the important property of a flap wheel that can be deformed flexibly. is there. When the number of the nonwoven fabric blocks 4 is increased, one nonwoven fabric block 4 becomes thinner and more flexibly deformed. On the other hand, when the number of the nonwoven fabric blocks 4 is reduced, one nonwoven fabric block 4 becomes thicker and less flexible, but harder and more abrasive. Therefore, the number of the nonwoven fabric blocks 4 fixed to the surface of the core material 2 is set to an optimal number for the application in consideration of the required polishing force and flexibility.

Further, the optimum number of the nonwoven fabric blocks 4 fixed to the surface of the core material 2 varies depending on the outer diameters of the core material 2 and the flap wheel. As the outer diameter of the core 2 and the flap wheel increases, the number of the nonwoven fabric blocks 4 fixed to the core 2 also increases. This is because a thick flap wheel has a longer outer circumference. Therefore, the number of the nonwoven fabric blocks 4 fixed to the surface of the core material is set to an optimum value in consideration of the outer diameter of the flap wheel.

For example, a flap wheel having an outer diameter of 30 cmφ used for stainless steel hairline processing has 30 nonwoven fabric blocks 4 fixed to the surface of a core material, and each nonwoven fabric block 4 has 10 nonwoven fabrics. What laminated | stacked and bonded the sheet 1 is used. However,
A flap wheel having an outer diameter of 10 to 50 cm and using, for example, 2 to 40 nonwoven fabric sheets laminated and bonded to a nonwoven fabric block is, for example, a 4 to 50 nonwoven fabric block. Laminate,
Fix to the core material surface.

After the nonwoven fabric block 4 is bonded and fixed to the surface of the core material 2, as shown in FIG. 8, the flap wheel is connected to the rotating shaft 6 and rotated. Grind and fix to a cylindrical shape. In the flap wheel in which the outer peripheral polishing surface 3 is modified in this step, the outer peripheral surface can be formed into an ideal cylindrical shape. However, in the flap wheel of the present invention, it is not necessary to fix the nonwoven fabric block to the surface of the core material and then grind the polished surface on the outer periphery to correct it into a columnar shape.

Further, as shown in FIG. 9, a slice is cut to a predetermined thickness to produce a flap wheel having a predetermined width. As described above, the method of manufacturing an elongated flap wheel and slicing it to a predetermined width to manufacture a plurality of flap wheels has a feature that a large number of flap wheels can be efficiently produced in large quantities.

[0034]

As described above, the flap wheel of the present invention has a feature that both the flexibility of the conventional flap wheel and the polishing power of the conventional polishing roll can be realized. that is,
The flap wheel of the present invention, a plurality of nonwoven fabric sheets laminated in the circumferential direction of the core material surface having a cylindrical outer peripheral surface, a predetermined number of bonded nonwoven fabric blocks,
This is because the nonwoven fabric block is fixed to the surface of the core material without being bonded on the lamination surface with the adjacent nonwoven fabric block. In the flap wheel having this structure, a plurality of nonwoven fabric sheets laminated in the circumferential direction on the surface of the core material are bonded to form a nonwoven fabric block, so that superior polishing power can be realized as compared with a conventional flap wheel. Furthermore, since the adjacent nonwoven fabric blocks are fixed to the surface of the core material without being bonded on the lamination surface, excellent flexibility can be realized as compared with the conventional polishing roll. Therefore, the flap wheel of the present invention can realize the characteristics of both the conventional flap wheel and the polishing roll, and can realize the characteristic that the polishing surface can be uniformly and efficiently polished.

Further, the flap wheel of the present invention can be very easily formed by changing the number of laminated nonwoven fabrics and the number of nonwoven fabric blocks fixed to the surface of the core material.
It also has the feature of realizing a flap wheel with flexibility and abrasive power according to the purpose and application.

Further, the flap wheel of the present invention can realize the feature that it can be mass-produced efficiently and inexpensively.
This is because the flap wheel of the present invention laminates a plurality of nonwoven fabrics to form a nonwoven fabric block, and fixes the nonwoven fabric block to the surface of the core material. For example, 30
A conventional flap wheel made of zero non-woven fabric is 30
It is necessary to stack zero nonwoven fabric in a cylindrical shape and fix it to the core material.
By laminating two nonwoven fabrics to form a nonwoven fabric block, it is possible to manufacture by fixing only 30 nonwoven fabric blocks to the core material. Compared to fixing and fixing 300 nonwoven fabrics on the surface of the core material, the flap wheel of the present invention, which can be manufactured by fixing 30 nonwoven fabric blocks to the core material, can be mass-produced extremely efficiently.

[Brief description of the drawings]

FIG. 1 is a perspective view of a conventional flap wheel.

FIG. 2 is a front view showing a state in which the flap wheel shown in FIG. 1 is ground;

FIG. 3 is an exploded perspective view of a conventional polishing roll.

FIG. 4 is a perspective view showing another conventional production process of a polishing roll.

FIG. 5 is a perspective view of a flap wheel according to the embodiment of the present invention.

FIG. 6 is a perspective view showing a manufacturing process of the flap wheel according to the embodiment of the present invention.

FIG. 7 is a perspective view showing a manufacturing process of the flap wheel according to the embodiment of the present invention.

FIG. 8 is a perspective view showing a manufacturing process of the flap wheel according to the embodiment of the present invention.

FIG. 9 is a perspective view showing a manufacturing process of the flap wheel according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Nonwoven fabric sheet 2 ... Core material 3 ... Polished surface 4 ... Nonwoven fabric block 5 ... Molding cylinder 6 ... Rotating shaft 7 ... Polishing disk

Claims (3)

(57) [Claims] 1. A plurality of non-woven sheets (1) cut into a square shape are laminated on the surface of a core material (2) in the circumferential direction of the core material surface, and the inside is fixed to the core material surface. In a flap wheel in which the outer peripheral surface of the laminated nonwoven sheet (1) is a cylindrical polishing surface (3), the nonwoven sheet (1) is polished to the surface of the fiber via an adhesive.
A plurality of nonwoven fabric sheets (1) that adhere to the grains and are laminated in the circumferential direction are laminated by applying an adhesive.
Pressed in a state, a non-woven fabric
The nonwoven block (4) is a lock (4), and the nonwoven block (4) does not bond the lamination surface with the adjacent nonwoven block (4), and the core material (2) Half of
Laminated in the radial direction and tightened to the forming cylinder (5)
And is adhered and fixed to the surface of the core material (2) having a cylindrical outer peripheral surface.
A flap wheel characterized by fixing a nonwoven fabric block (4) that is at least a block. 2. The flap wheel according to claim 1, wherein the nonwoven fabric block (4) is formed by laminating and bonding 2 to 40 nonwoven fabric sheets (1). 3. The outer diameter of the flap wheel is 10 to 50c.
The flap wheel according to claim 2, wherein 4 to 50 nonwoven fabric blocks (4) are fixed to the core material surface at mφ.