JP2007030153A - Roll - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roll with very high durability which constantly grinds a surface to be ground without detachment of grinding abrasives, or bending and cutting of hairs. <P>SOLUTION: This roll 1 grinds and removes iron powder and nonferrous metal powder adhering on the surface made of iron and nonferrous metal. Roll pieces 5 constituting the roll are formed of a sheet-like nonwoven fabric A having fibers integrated with filament and grinding abrasives via an adhesive, and a plurality of the roll pieces are overlaid with each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a roll for grinding and removing iron powder and non-ferrous metal powder adhering to a ground surface made of iron or non-ferrous metal.

  Various improvements have been made to the roll for grinding and removing iron powder and non-ferrous metal powder adhering to the surface to be ground made of iron and non-ferrous metal. For example, the surface of the workpiece is polished or deburred. Japanese Laid-Open Patent Publication No. 2002-187073 discloses a linear brush material that can be used for polishing and grinding. Also, a brush roll that is applied to polishing of a temper rolling roll or a backup roll of a temper rolling roll, and a polishing brush composed of resin fibers for brush rolls that are used for polishing plates such as thick and thin plates in a steel plate production line Japanese Unexamined Patent Publication No. 2003-166122 discloses a brush bristle material for a roll and an abrasive brush roll.

  The conventional roll is disclosed as described above. However, in the linear brush material disclosed in Japanese Patent Laid-Open No. 2002-187073, when the roll is assembled to the roll, the roll is in contact with the surface to be ground. In the middle of pressing and rotating, the abrasive grains fall off and are pressed against the surface to be ground, and the elasticity of the bristle material is low, so the bristle material breaks or breaks, resulting in extremely low durability. It had the problem that.

  Further, in the brush bristle material and the abrasive brush roll of the abrasive brush roll disclosed in Japanese Patent Application Laid-Open No. 2003-166122, the surface to be ground cannot be uniformly ground because there is a gap between the bristle materials of the brush. It had the problem that.

  JP 2002-187073 A   JP 2003-166122 A

  The present invention has been made to solve the above-described problems. There is no drop of abrasive grains, no breakage, no breakage, extremely high durability, and the surface to be ground is uniformly ground. The purpose is to provide a roll.

The roll concerning this invention is comprised as follows.
(1) In a roll for grinding and removing iron powder and non-ferrous metal powder adhering to a surface to be ground made of iron or non-ferrous metal, the roll piece constituting the roll has a filament and abrasive grains through an adhesive. It is formed by a flat nonwoven fabric A having integrated fibers, and a plurality of the roll pieces are overlapped.

  (2) In the roll according to the above (1), the roll piece constituting the roll has an outer layer portion and a core portion joined together, and the outer layer portion is integrated with a filament and abrasive grains via an adhesive. The core portion is formed of a heterogeneous material with respect to the outer layer portion, and a plurality of the roll pieces are overlapped with each other.

  (3) In the roll having the configuration according to claim 1 or 2, a spiral recess is formed on the outer peripheral portion of the roll.

  The roll of the present invention can obtain the following effects. In the description, the same reference numerals as those in the claims are attached.

  (1) The roll piece is formed of a flat nonwoven fabric A having fibers in which filaments and abrasive grains are integrated with an adhesive, and a plurality of roll pieces are overlapped. Therefore, since the abrasive grains are attached to the filament via the adhesive, the abrasive grains do not fall off, and there is no breakage or breakage like the brush bristle material. In addition to being able to achieve a long period of time, since there is no gap as between the bristle materials of the brush, the surface to be ground can be uniformly ground. Further, the surface hardness of the roll portion can be adjusted in accordance with the number of roll pieces stacked, and the contact pressure of the roll can be adjusted with respect to the surface to be ground. In addition, even if the roll part is clogged with non-ferrous metal powder on the surface to be ground, the surface to be ground can be ground again by re-cutting and re-polishing the roll part and releasing a new roll part again. it can.

  (2) The roll piece has an outer layer portion and a core portion joined together, and the outer layer portion is formed of a flat nonwoven fabric A having fibers in which filaments and abrasive grains are integrated with an adhesive. The core portion is formed of a different material from the outer layer portion, and a plurality of the roll pieces are overlapped. Therefore, since a polymer elastic body is used for the core part, the roll is elastically deformed, the contact area between the roll part of the roll and the ground surface is increased, and the nonferrous metal powder adhered to the ground surface is Grinding can be performed more efficiently. Moreover, since the nonwoven fabric B of a core part is cheaper compared with the nonwoven fabric A of an outer layer part, the unit price of a roll piece can be suppressed.

  (3) A spiral recess is formed on the outer periphery of the roll. Therefore, when grinding and removing the non-ferrous metal powder adhering to the surface to be ground, the non-ferrous metal powder that has been ground and removed collects in the spiral recess, and the non-ferrous metal powder can be prevented from falling off the roll part. . Moreover, the nonferrous metal powder trapped in the recess can be caused to flow in the longitudinal direction of the roll as the roll rotates.

  The purpose is to provide a roll that does not drop off abrasive grains, breaks and breaks, has extremely high durability, and uniformly grinds the ground surface. In a roll for grinding and removing adhering iron powder and non-ferrous metal powder, the roll piece constituting the roll is a flat nonwoven fabric A having fibers in which filaments and abrasive grains are integrated with an adhesive. And a configuration in which a plurality of the roll pieces are overlapped.

  A first embodiment is shown in FIGS. FIG. 1 is a front view of a form in which the roll of the present invention is used for grinding non-ferrous metal powder adhering to a surface to be ground. In FIG. 1, 1 is a roll, 2 is a pedestal, 3 is a fastener, 4 is a plate, 5 is a roll piece, and 51 is a roll portion. FIG. 2 is a perspective view of the roll piece used in FIG. 1 as seen from the front side. In FIG. 2, 31 is a hole and 32 is an end. FIG. 3 is a partially enlarged view of FIG. In FIG. 3, 6 is a fiber, 7 is a filament, 8 is an abrasive grain, 9 is an adhesive, and 26 is a nonwoven fabric A.

  As shown in FIG. 1, the roll 1 includes a pedestal 2, a stopper 3, a plate 4, and a roll piece 5. A plurality of roll pieces 5 are mounted on the outer periphery of the pedestal 2 so as to be sandwiched between the metal fittings 3 and the plate 4 from both sides. A snap ring is used for the fastener 3. Further, as shown in FIG. 2, the roll piece 5 is formed in a substantially disc-like flat plate shape, a hole portion 31 is formed in the central portion, and an end portion 32 is formed in the outer peripheral portion. . In the roll 1, first, the roll piece 5 is punched into a substantially disk-like flat plate shape, overlapped, the hole 31 is fitted into the pedestal 2, and compressed from the longitudinal direction of the pedestal 2 by a predetermined length by a press machine. After that, the metal plate is clamped and fixed by the stopper 3 and the plate 4. Next, by leaving it to stand for a predetermined time, the internal stresses of the plurality of roll pieces 5 overlapped are made uniform, and the end portion 32 is manufactured by cutting and polishing.

  Moreover, the roll piece 5 consists of the nonwoven fabric A26 in which the filament 7 and the abrasive grain 8 were formed with the fiber 6 integrated through the adhesive agent 9, as shown in FIG. In addition, about the content ratio of the said fiber 6 with respect to the said nonwoven fabric A26, as mentioned above, in addition to comprising only the fiber 6 in which the filament 7 and the abrasive grain 8 were integrated through the adhesive agent 9, it is the said nonwoven fabric. A predetermined weight ratio may be contained in A26. As materials, nylon, which is a kind of polyamide resin, is used for the filament 7, aluminum oxide is used for the abrasive grains 8, and urethane resin is used for the adhesive 9. In addition to the above materials, the filament 7 is made of polyester, polyolefin such as polyethylene or polypropylene, fluorine, spandex, and ultrafine fiber having a wire diameter of 1 denier or more and ultrafine fiber of less than 1 denier. Fiber, etc. Polishing abrasive grains 8 include silicon carbide, diamond, talc, kaolin, calcium carbonate, diatomaceous earth, fluorite, etc. Adhesive 9 includes various materials such as epoxy resin, natural rubber adhesive, and synthetic rubber adhesive. Can be used in a timely manner. One denier is a fiber that is 1 g at 9000 m.

  Next, the manufacturing procedure of the nonwoven fabric A26 which comprises the roll piece 5 is demonstrated. First, the hot melted polyamide resin is accumulated on a collection net while being stretched in the form of a continuous filament, and the filaments are bonded by pressing with a hot roll. A filament is a thin linear material and is generally a continuous long fiber. Thereafter, impregnation with urethane resin is performed to fix aluminum oxide to form a flat nonwoven fabric A26.

  Next, the grindability of the roll for grinding and removing the iron powder and nonferrous metal powder adhering to the ground surface made of iron or nonferrous metal of the present invention was tested. A conventionally used nylon brush with abrasive grains was used as a comparative example. Table 1 shows the compositions of the materials used in the examples and comparative examples.

  The roll used in the test and the test conditions are described. A roll having a roll part with a roll outer diameter of 250 mm, a roll inner diameter of 170 mm, and a total length of 180 mm was produced. Next, at a roll rotation number of 900 rpm and a roll reduction amount of 1 mm, the roll was pressed against an aluminum plate having a thickness of 2 mm for 10 minutes to rotate, and the grinding amount was measured. The roll reduction amount indicates the degree of pressing the roll against the plate. The brush roll of the comparative example is the same as the roll of the present invention except that the length of the brush bristle material is 40 mm.

  The grinding results were Example 31.2 g and Comparative Example 9.8 g. The result of the grinding performance of the roll of the present invention was 3 times or more that of a conventional brush roll.

  Since the roll 1 of Example 1 is configured as described above, the roll piece 5 is a flat nonwoven fabric having fibers 6 in which filaments 7 and abrasive grains 8 are integrated with an adhesive 9. It is formed by A26 and a plurality of the roll pieces 5 are overlapped. Therefore, since the abrasive grains 8 are attached to the filaments 7 via the adhesive 9, the abrasive grains 8 are not dropped off, and there is no occurrence of breakage or breakage like a brush bristle material. In addition to prolonging the roll life, the surface to be ground can be ground uniformly because there is no gap as between the bristle materials of the brush. Moreover, the surface hardness of the roll part 51 can be adjusted according to the lamination | stacking number of roll pieces 5, and the contact pressure of the roll 1 can be adjusted with respect to a to-be-ground surface. Moreover, even if the roll part 51 is clogged with the non-ferrous metal powder on the surface to be ground, the surface to be ground is ground again by re-cutting and re-polishing the roll part 51 and releasing a new roll part 51 again. can do.

  Example 2 is shown in FIGS. FIG. 4 is a front view of a form in which the roll of the present invention is used for grinding non-ferrous metal powder adhering to a surface to be ground. In FIG. 4, 11 is a roll, 12 is a base, 13 is a fastener, 14 is a plate, 15 is a roll piece, and 52 is a roll part. FIG. 5 is a perspective view of the roll piece used in FIG. 4 as seen from the front side. In FIG. 5, 41 is a hole, 42 is an end, 43 is an outer layer, 44 is a core, and 45 is a sewing part. FIG. 6 is a partially enlarged view of the outer layer portion 43 of FIG. In FIG. 6, 16 is a fiber, 17 is a filament, 18 is abrasive grains, 19 is an adhesive, and 36 is a nonwoven fabric A. FIG. 7 is a partially enlarged view of the core portion 44 of FIG. In FIG. 7, 46 is a nonwoven fabric B, 61 is a short fiber, 62 is a polymer elastic body.

  As shown in FIG. 4, the roll 11 includes a pedestal 12, a stopper 13, a plate 14, and a roll piece 15. On the outer periphery of the pedestal 12, a plurality of roll pieces 15 are mounted by being sandwiched by fasteners 13 and plates 14 from both sides. A snap ring is used for the fastener 13. Further, as shown in FIG. 5, the roll piece 15 is formed in a substantially disk-like flat plate shape, a hole portion 41 is formed in the center portion, and an end portion 42 is formed in the outer peripheral portion. The outer layer portion 43 and the core portion 44 are joined by a sewing portion 45. As a method for joining the outer layer portion 43 and the core portion 44, chemical joining such as adhesion and welding, and physical joining methods such as screwing and stapler can be used in addition to the sewing. In the roll 11, first, the roll piece 15 is formed into a substantially disk-like flat plate shape, overlapped, the hole 41 is fitted into the pedestal 12, and compressed by a predetermined length from the longitudinal direction of the pedestal 12 by a press. Then, it is clamped and fixed by the fastener 13 and the plate 14. Next, by leaving it to stand for a predetermined time, the internal stress of the plurality of roll pieces 15 overlapped is made uniform, and the end 42 is manufactured by cutting and polishing.

  Moreover, the outer layer part 43 of the roll piece 15 consists of the nonwoven fabric A36 in which the filament 17 and the abrasive grain 18 were formed with the fiber 16 integrated through the adhesive agent 19, as shown in FIG. In addition, as for the content ratio of the fibers 16 with respect to the nonwoven fabric A36, as described above, the nonwoven fabric is not only composed of the fibers 16 in which the filaments 17 and the abrasive grains 18 are integrated through the adhesive 19, but the nonwoven fabric A36. A predetermined weight ratio may be contained in A36. As materials, nylon is used for the filament 17, aluminum oxide is used for the abrasive grains 18, and urethane resin is used for the adhesive 19. The material is representative, and the filament 17 is made of polyester, polyolefin such as polyethylene or polypropylene, fluorine, spandex, wire diameter of ultrafine fiber of 1 denier or more, ultrafine fiber of less than 1 denier, etc. Silicon carbide, diamond, talc, kaolin, calcium carbonate, diatomaceous earth, fluorite, etc. can be used for the grains 18, and epoxy resin, natural rubber adhesive, synthetic rubber adhesive, etc. can be used for the adhesive 19. One denier is a fiber that is 1 g at 9000 m.

  Next, the manufacturing procedure of the nonwoven fabric A36 which comprises the outer layer part 43 of the roll piece 15 is demonstrated. First, the hot melted polyamide resin is accumulated on a collection net while being stretched in the form of a continuous filament, and the filaments are bonded by pressing with a hot roll. Then, a urethane resin is impregnated, and aluminum oxide is fixed to form a flat nonwoven fabric A36.

  Further, as shown in FIG. 7, the core portion 44 of the roll piece 15 is formed of a nonwoven fabric B46 in which a polymer elastic body 62 is attached to the surface of the short fibers 61 and the short fibers 61 are bonded to each other. As the material, nylon is used for the short fibers 61, and nitrile rubber is used for the polymer elastic body 62. The material is representative, and in addition to the material, the short fiber 61 is polyester, polyolefin such as polyethylene or polypropylene, fluorine, spandex, etc., and the polymer elastic body 62 is styrene rubber, acrylic rubber, urethane. Rubber or the like can also be used.

  Next, the manufacturing procedure of the nonwoven fabric B46 which comprises the core part 44 of the roll piece 15 is demonstrated. First, a special needle is inserted into the nylon fiber to entangle the short fiber 61 three-dimensionally. As described above, the manufacturing method for three-dimensionally intertwining is generally called needle punching. Next, a nitrile rubber solution is attached to the short fibers 61 by a method such as impregnation, dipping, or spraying, and the short fibers 61 are bonded to form a flat nonwoven fabric B46. The core portion 44 may be made of woven fabric, foam, rubber, various waste recycling materials, etc. in addition to the nonwoven fabric B46.

  Since the roll 11 of Example 2 is configured as described above, the roll piece 15 is formed by joining the outer layer portion 43 and the core portion 44, and the filament 17 and the abrasive grains 18 are formed of the adhesive 19. The core portion 44 is formed of a foreign material with respect to the outer layer portion 43, and a plurality of the roll pieces 15 are formed. Overlaid. Therefore, since the polymer elastic body 62 is used for the core portion 44, the roll 11 is elastically deformed, the contact area between the roll portion 52 of the roll 11 and the surface to be ground is increased, and adheres to the surface to be ground. Nonferrous metal powder can be ground more efficiently. Moreover, since the nonwoven fabric B46 of the core part 44 is cheaper than the nonwoven fabric A36 of the outer layer part 43, the unit price of the roll piece 15 can be suppressed.

  Example 3 is shown in FIG. FIG. 8 is a front view of a form in which the roll of the present invention is used for grinding nonferrous metal powder adhering to a surface to be ground. In FIG. 8, 21 is a roll, 22 is a pedestal, 23 is a fastener, 24 is a plate, 25 is a roll piece, 53 is a roll portion, and 80 is a recess.

  As shown in FIG. 8, the roll 21 includes a pedestal 22, a stopper 23, a plate 24, and a roll piece 25. On the outer periphery of the pedestal 22, a plurality of roll pieces 25 are mounted by being clamped by fasteners 23 and plates 24 from both sides. A snap ring is used for the fastener 23. The roll manufacturing method is the same as in the first and second embodiments. A concave portion 80 is formed on the outer peripheral portion of the roll portion 53. The concave portion 80 is formed in a spiral shape on the outer peripheral portion of the roll using a grinding tool such as a cutter, a drill, a cutting tool, and a diamond blade. Further, when the roll piece 25 is punched into a substantially disk-like flat plate shape, a groove is formed on the outer periphery of the roll piece 25, the roll piece 25 is stacked on the pedestal 22, and the outer periphery of the roll portion 53 is formed. You may form the helical recessed part 80 in a part.

  Since the roll 21 of the third embodiment is configured as described above, a spiral recess 80 is formed on the outer periphery of the roll 21. Therefore, when grinding and removing the non-ferrous metal powder adhering to the surface to be ground, the non-ferrous metal powder that has been ground and removed collects in the spiral concave portion 80 to prevent the non-ferrous metal powder from dropping from the roll portion 53. Can do. Further, the nonferrous metal powder captured in the recess 80 can be caused to flow in the longitudinal direction of the roll 21 as the roll 21 rotates.

  The roll of this invention is mainly used as a roll for grinding and removing the iron powder and nonferrous metal powder adhering to the to-be-ground surface which consists of iron and a nonferrous metal. Moreover, it can utilize suitably also as a rotary tool by connecting a drive source to a base.

  It is a front view of the roll of this invention.   It is the perspective view which looked at the roll piece used for FIG. 1 from the front side.   FIG. 3 is a partially enlarged view of FIG. 2.   It is a front view of the roll of this invention.   It is the perspective view which looked at the roll piece used for FIG. 4 from the front side.   It is the elements on larger scale of the outer layer part of FIG.   It is the elements on larger scale of the core part of FIG.   It is a front view of the roll of this invention.

Explanation of symbols

1, 11, 21 Roll 2, 12, 22 Pedestal 3, 13, 23 Fastener 4, 14, 24 Plate 5, 15, 25 Roll piece 6, 16 Fiber 7, 17 Filament 8, 18 Polishing abrasive grains 9, 19 Adhesive Agents 26, 36 Nonwoven Fabric A
31, 41 Hole 32, 42 End 43 Outer layer 44 Core 45 Sewing 46 Nonwoven fabric B
51, 52, 53 Roll part 61 Short fiber 62 Polymer elastic body 80 Recessed part

Claims (3)

  In the roll for grinding and removing iron powder and non-ferrous metal powder adhering to the surface to be ground made of iron and non-ferrous metal, the roll piece constituting the roll is integrated with the filament and abrasive grains through an adhesive A roll characterized in that it is formed of a flat nonwoven fabric A having a formed fiber, and a plurality of the roll pieces are overlapped.   The roll which consists of a structure of Claim 1 WHEREIN: As for the roll piece which comprises the said roll, the outer layer part and the core part were joined, and the filament and the abrasive grain were integrated with the said outer layer part via the adhesive agent. A roll characterized in that it is formed of a flat nonwoven fabric A having fibers, the core portion is formed of a heterogeneous material with respect to the outer layer portion, and a plurality of the roll pieces are overlapped. .   The roll which consists of a structure of Claim 1 or Claim 2, The spiral recessed part is formed in the outer peripheral part of the said roll, The roll characterized by the above-mentioned.

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