WO2012081626A1 - Procédé de fabrication d'un rouleau d'automatisation de bureau et rouleau d'automatisation de bureau - Google Patents

Procédé de fabrication d'un rouleau d'automatisation de bureau et rouleau d'automatisation de bureau Download PDF

Info

Publication number
WO2012081626A1
WO2012081626A1 PCT/JP2011/078929 JP2011078929W WO2012081626A1 WO 2012081626 A1 WO2012081626 A1 WO 2012081626A1 JP 2011078929 W JP2011078929 W JP 2011078929W WO 2012081626 A1 WO2012081626 A1 WO 2012081626A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
shaft
elastic layer
roller material
cylindrical
Prior art date
Application number
PCT/JP2011/078929
Other languages
English (en)
Japanese (ja)
Inventor
亨 益山
Original Assignee
株式会社ブリヂストン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ブリヂストン filed Critical 株式会社ブリヂストン
Priority to JP2012548815A priority Critical patent/JP5638626B2/ja
Priority to CN201180060297.5A priority patent/CN103261974B/zh
Publication of WO2012081626A1 publication Critical patent/WO2012081626A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/08—Details of powder developing device not concerning the development directly
    • G03G2215/0855—Materials and manufacturing of the developing device
    • G03G2215/0858—Donor member
    • G03G2215/0863—Manufacturing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/16—Transferring device, details
    • G03G2215/1604—Main transfer electrode
    • G03G2215/1614—Transfer roll
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/20—Details of the fixing device or porcess
    • G03G2215/2003—Structural features of the fixing device
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/0005—Cleaning of residual toner

Definitions

  • the present invention relates to an OA roller manufacturing method and an OA roller.
  • the OA roller which is a collective term for these rollers, has a basic structure in which an elastic layer made of a resin foam, for example, a polyurethane foam, is formed in a cylindrical shape on the outer periphery of a shaft serving as a rotating shaft.
  • the first method is to apply an adhesive or the like to a shaft made of metal, etc., if necessary, attach and fix an elastic layer material made of a resin foam on the outer periphery of the shaft, and then the elastic layer material is desired (Patent Document 1, Patent Document 2).
  • Patent Document 1 Patent Document 2
  • an elastic layer material made of a resin foam is attached and fixed to the outer periphery of the shaft in the same manner as in the first method, and then the elastic layer material is processed with a hot wire so as to have a cylindrical shape of a desired size.
  • the third method is a method in which a shaft is arranged in advance in a cavity of a mold, and rubber or resin foam material is injected into the cavity to obtain an OA roller.
  • the surface of the elastic layer is rubbed during processing.
  • the second method of processing the elastic layer material with heat rays makes it difficult to uniformly finish the peripheral surface of the roller, and because of the heat ray processing, the surface of the roller is hardened by heat or the foam cells on the surface are torn. There was a malfunction.
  • the third method of processing by injection molding requires the production of a mold or the like, the manufacturing cost is high, and it is difficult to adjust the foaming state of the foam in the mold, It was difficult to make the surface of the roller uniform in a smooth state with low hardness.
  • a method for manufacturing an OA roller that does not cause fluffing, thermal curing, or cost increase, after producing a roller material having a diameter larger than a desired roller diameter, the cylindrical molding tool having a diameter smaller than the outer diameter of the roller material
  • a method for manufacturing a roller in which a roller material is inserted and the elastic layer of the roller is compressed and then heated Patent Document 3
  • the roller obtained by this manufacturing method has a shape in which the cells of the resin foam of the elastic layer are compressed in the radial direction of the roller, and the number of cells on the surface is larger than the number of cells inside the roller radial direction.
  • the surface is free from flaking and is a smooth roller.
  • JP 2008-299006 A JP 2001-225201 A JP-A-9-297512
  • the roller obtained by the manufacturing method described in Patent Document 3 can improve the suppression of the fluffing on the surface of the elastic layer, but the elastic layer is removed by inserting the roller into the cylindrical forming tool from one direction.
  • distortion occurred in the axial direction of the roller shaft.
  • this distortion for example, when an OA roller is applied to the toner supply roller, the toner supply at a predetermined amount cannot be performed or the toner is clogged.
  • the present invention advantageously solves the above-described problem, and a method of manufacturing an OA roller capable of manufacturing an OA roller that is smooth and has a smooth surface and is free from cell distortion in the shaft axial direction.
  • An object is to provide an OA roller obtained by using the method.
  • the manufacturing method of the OA roller of the present invention that solves the above-described problem has a shaft and a cylindrical elastic layer made of a resin foam formed on the outer periphery of the shaft, and the elastic layer is the final outer layer.
  • a step of preparing a roller material having an outer diameter larger than the diameter, and while compressing the elastic layer of the roller material in a cylindrical forming tool having an inner diameter smaller than the outer diameter of the elastic layer of the roller material A step of inserting the roller material, a step of moving the shaft in a direction opposite to the insertion direction so as to remove distortion in the shaft axial direction generated in the elastic layer of the roller material in the cylindrical molding tool, and the roller material And a step of heating together with the cylindrical forming tool and a step of obtaining a roller having an elastic layer having a final outer diameter by removing the heated roller material from the cylindrical forming tool.
  • the amount of strain in the axial direction of the shaft of the roller material generated in the elastic layer of the roller material in the cylindrical forming tool is preferable to move by an amount determined by
  • the resin foam is preferably urethane foam, and in the heating step, it is preferable to hold at least one end of the shaft of the roller material by the holding member.
  • the OA roller of the present invention is manufactured by the manufacturing method of the OA roller of the present invention, and includes a shaft and a cylindrical elastic layer made of a resin foam formed on the outer periphery of the shaft, The resin foam cell in the vicinity of the surface of the elastic layer is compressed and deformed in the radial direction of the roller, and has a shape in which the axial strain of the shaft is removed.
  • the distortion in the shaft axial direction generated in the elastic layer when the roller material is inserted into the cylindrical forming tool is removed by moving the shaft in the direction opposite to the insertion direction.
  • FIG. 1 shows a time-series schematic diagram illustrating an embodiment of the production method of the present invention.
  • a roller material 10 is first prepared.
  • the roller material 10 includes a shaft 11 and a cylindrical elastic layer 12 made of a resin foam formed on the outer periphery of the shaft 11.
  • the shaft 11 serves as a rotation axis in the OA roller manufactured in the present invention, and is not particularly limited in shape, material, size, and the like, and can be applied to a normal OA roller.
  • the material may be made of metal or resin.
  • the shaft 11 may be a solid shape or a hollow shape.
  • the elastic layer 12 formed on the outer periphery of the shaft 11 corresponds to the elastic layer in the OA roller manufactured according to the present invention.
  • the elastic layer 12 is fixed to the shaft 11 with an adhesive as necessary.
  • the resin foam of the material of the elastic layer 12 is not particularly limited, but can be urethane foam.
  • the polyurethane resin used for the urethane foam a conventionally known material can be appropriately selected and used, and is not particularly limited.
  • the foaming ratio of the polyurethane foam is not particularly limited, but is preferably 1.2 to 50 times, particularly about 10 to 25 times, and the foam density is 0.04 to 0.1 g / cm. About 3 is preferable.
  • the outer diameter of the elastic layer 12 is assumed to have an outer diameter larger than the outer diameter of the OA roller obtained by the manufacturing method of the present invention, that is, the final outer diameter. It is preferable that the elastic layer 12 has a cylindrical shape similar to the cylindrical shape of the OA roller. Such a columnar shape is obtained by cutting a block having a square or polygonal cross section from a sheet of resin foam and attaching and fixing the block to the shaft 11, and then converting the resin foam into a columnar shape by a known method such as polishing, grinding, cutting, or the like. It is obtained by processing. However, depending on the case, it may be a rectangular or polygonal cross-sectional shape instead of a cylindrical shape.
  • a cylindrical forming tool m is prepared.
  • the cylindrical forming tool m has a cylindrical shape, and the length in the central axis direction is longer than the elastic layer 12 of the roller material 10.
  • the inner diameter is substantially the same as the outer diameter of the OA roller to be manufactured, and it is preferable to make the inner diameter slightly larger in consideration of the gap with the outer diameter of the OA roller.
  • the inner diameter can be 0.1 mm larger than the outer diameter of the OA roller.
  • the cylindrical molding tool m can be made of resin or metal, but is heated with the cylindrical molding tool m in a later process, so that it is made of metal having heat resistance and good thermal conductivity. Is preferred. Of these, aluminum, copper, iron and the like are preferable. In order to reduce the coefficient of friction, a lubricating film that does not contaminate the resin foam, such as fluorine coating, can be formed on the inner surface of the cylindrical molding tool.
  • the roller material 10 is inserted from the opening at one end of such a cylindrical forming tool m.
  • the elastic layer 12 is inserted while being compressed toward the radial center.
  • the compression rate (%) of the elastic layer is expressed by ⁇ (R ⁇ r) ⁇ where R is the thickness of the elastic layer 12 of the roller material 10 before insertion, and r is the thickness of the compressed elastic layer 12 after insertion. / R ⁇ ⁇ 100, and a preferable compression ratio is preferably about 5 to 50%.
  • the compression rate is larger than the lower limit, the cell density near the surface of the elastic layer can be increased, and toner clogging or the like can be suppressed on the surface of the OA roller.
  • the compression ratio is smaller than the upper limit value, excessive compression can be prevented and the elasticity of the elastic layer can be prevented from being impaired.
  • the means for inserting the roller material 11 into the cylindrical forming tool m is not particularly limited.
  • An appropriate insertion device may be used, or it may be inserted manually. It is preferable to avoid inserting the roller material 11 while twisting it with respect to the cylindrical forming tool m.
  • the appearance of the cylindrical forming tool m immediately after insertion is shown in FIG. Moreover, the shape of the vicinity of the end part of the elastic layer 12 of the roller material 11 inserted in the cylindrical forming tool m at this time and the vicinity of the end part of the rear end side are schematically shown in FIG.
  • the elastic layer 12 is not only compressed in the radial direction but also inserted while being compressed into the cylindrical forming tool m, so that it deforms in the axial direction of the shaft 11 and the end on the tip side swells in a cone shape, The end on the rear end side is recessed in a cup shape.
  • the foam cell When the subsequent heating is performed in this shape, the foam cell has a radial cross section from the surface of the elastic layer 12 toward the shaft 11 in the central portion in the direction parallel to the shaft axis direction of the elastic layer 12 in FIG. As shown in the micrograph of the foam cell shape in FIG. 1, not only the radial direction of the elastic layer 12 but also the axial direction of the shaft 11 is distorted, and the foam cell is deformed in the oblique direction of the figure.
  • the shaft 11 is moved in the direction opposite to the insertion direction so as to remove the distortion in the shaft axial direction generated in the elastic layer 12 of the roller material 10 in the cylindrical forming tool m.
  • Move. The appearance of the cylindrical forming tool m after movement is shown in FIG.
  • the shape of the vicinity of the end part of the elastic layer 12 of the roller material 11 inserted in the cylindrical forming tool m at this time and the vicinity of the end part of the rear end side are schematically shown in FIG.
  • the elastic layer 12 has a substantially flat shape at both the end on the front end side and the end on the rear end side.
  • the foam cell When heating is performed in the subsequent process while maintaining this shape, the foam cell is in the radial direction from the surface of the elastic layer 12 toward the shaft 11 in the central portion of the elastic layer 12 in the direction parallel to the axial direction of the shaft in FIG. As shown in the micrograph of the foam cell shape in the cross section, the foam cell is deformed in the radial direction with strain removed in the axial direction of the shaft 11.
  • the shaft 11 is placed in the direction opposite to the insertion direction so as to remove the distortion in the shaft axial direction generated in the elastic layer 12 of the roller material 10 in the cylindrical forming tool m as described above. Since the obtained OA roller is moved, the distortion in the shaft axial direction of the roller is eliminated in the foam cell constituting the elastic layer. Therefore, clogging of toner or the like conveyed by the OA roller can be prevented, and the magnitude of strain does not vary in the length direction of the elastic layer. Good image forming characteristics can be obtained when the is incorporated.
  • the amount by which the shaft 11 is moved in the direction opposite to the insertion direction is an amount determined by the amount of strain in the axial direction of the shaft 11 generated in the elastic layer 12 of the roller material 10 in the cylindrical forming tool m, more specifically, The amount is preferably the same or substantially the same as the amount of distortion. “Substantially the same amount” means an amount within ⁇ 1 mm of distortion. By setting the movement amount of the shaft 11 to an amount determined by such a strain amount, the strain in the shaft axis direction generated in the elastic layer 12 can be more effectively removed.
  • a specific range of the preferable moving amount of the shaft 11 is 2 to 10 mm, and a more preferable range is 2 to 4 mm.
  • the amount of distortion in the axial direction of the shaft 11 generated in the elastic layer 12 of the roller material 10 in the cylindrical forming tool m can be measured as follows.
  • a radial cut c from the surface of the elastic layer 12 of the roller material 10 toward the center is formed on the axis of the shaft 11. It forms along a direction (Fig.6 (a)).
  • the cuts c are formed at a total of three locations in the vicinity of the end portion on the front end side of the elastic layer 12 of the roller material 11, the vicinity of the end portion on the rear end side, and the vicinity of the central portion in the axial direction. It is not limited to a place.
  • the roller material 10 shown in FIG. 6A is schematically drawn for easy understanding of the present invention, and the dimensional shape of the roller material and the size of the notch c are limited to the illustrated example. Is not to be done.
  • FIG. 6B a direction perpendicular to the axial direction of the shaft 11 in the notch c is shown in FIG. 6B, so that one of the notches c in the elastic layer 12 shows a radial section of the elastic layer 12.
  • a straight line L is drawn.
  • the means for drawing the straight line L is not particularly limited, but means for preventing the straight line L from disappearing in the heating step performed in the manufacturing method of the present invention.
  • an oil-based ink pen can be used.
  • the roller material 10 having the cut c in which the straight line L is drawn in the elastic layer 12 is inserted into the cylindrical forming tool m. After the insertion, the roller material 10 is heated together with the cylindrical forming tool m without moving the shaft 11 of the roller material 10 in a direction opposite to the insertion direction or by a predetermined amount.
  • the displacement d in the shaft axial direction of the straight line L is measured by a total of three incisions in the vicinity of the end portion on the front end side, in the vicinity of the end portion on the rear end side, and in the vicinity of the central portion in the axial direction. .
  • the average value of the measured values is defined as the amount of strain in the axial direction of the shaft 11 generated in the elastic layer 12 of the roller material 10 when the roller material 10 is inserted into the cylindrical forming tool m. In this way, the amount of strain in the axial direction of the shaft 11 generated in the elastic layer 12 of the roller material 10 in the cylindrical forming tool m can be measured.
  • the shaft is set in the direction opposite to the insertion direction.
  • the movement amount of the shaft is the same as or substantially the same as the measured distortion amount when the shaft 11 of the roller material 10 described above is not moved in the direction opposite to the insertion direction. can do. Thereby, the distortion of the shaft axial direction which arose in the elastic layer of roller material can be removed effectively.
  • the heating means is not particularly limited.
  • the existing heating apparatus t is used.
  • the heating temperature and the heating time are not particularly limited.
  • heating temperature and the heating time are not particularly limited.
  • heating condition when the resin foam of the elastic layer 12 is urethane foam, it is possible to prevent fluffing by heating at 150 ° C. or more for 60 minutes or more.
  • a more preferable temperature range is 150 ° C. or higher and 250 ° C. or lower.
  • the heating time is preferably set to 240 minutes or less from the viewpoint of energy saving, since the effect of preventing flashing is saturated even if the heating time is too long.
  • the roller material 10 in the cylindrical forming tool m has a high cell density on the surface of its elastic layer, and a smooth surface free from flaking is obtained. Therefore, by removing the roller material 10 from the cylindrical forming tool m, an OA roller having an elastic layer having a final outer diameter can be obtained without separately reducing the diameter of the elastic layer (FIG. 1 (f)). ).
  • the outer diameter of the elastic layer may be larger than the desired diameter, and the shaft shaft may be removed when the roller material 10 is removed from the cylindrical forming tool m.
  • Directional strain may be applied to the elastic layer. Therefore, it is preferable to remove the roller material 10 after sufficiently lowering the temperature.
  • the temperature of the roller material 10 it is preferable to lower the temperature of the roller material 10 to about 50 ° C. to room temperature and then remove it.
  • This temperature drop may be allowed to cool in the atmosphere, may be slowly cooled in the heating device, or may be cooled using a cooling device in order to shorten the processing time.
  • the present embodiment includes all the requirements of the above-described embodiment described with reference to FIGS. 1A to 1F, and, as shown in FIG. 7, at least the shaft 11 of the roller material 10 before the heating step.
  • One end is held by the holding member h, and the roller material 10 is heated together with the cylindrical forming tool m in this held state.
  • the holding member h has a through-hole (not shown in the figure) that is concentric with the cylindrical forming tool m and allows the shaft 11 to be inserted. More preferably, the holding member h is at least one end of the cylindrical forming tool.
  • the holding member h is not particularly limited, and heat-resistant resin or metal can be used.
  • the holding member h may be attached when the roller material 10 is inserted into the cylindrical forming tool m (see FIG. 1B), or the shaft 11 is moved in the direction opposite to the insertion direction, if it is before heating. (See FIG. 1C) or just before heating (FIG. 1D).
  • the shaft 11 By holding at least one end of the shaft 11 by the holding member h, the shaft 11 can be positioned at the center of the inner diameter of the cylindrical forming tool m and fixed at that position. Therefore, when the roller material 10 is inserted into the cylindrical forming tool m (see FIG. 1B), the holding member h is used even when the shaft 11 is not positioned at the center of the inner diameter of the cylindrical forming tool. Thus, the shaft 11 can be positioned at the center of the inner diameter of the cylindrical forming tool. In other words, the cylindrical molding tool m and the shaft 11 can be positioned by the holding member h. Furthermore, the shaft 11 can be positioned in the axial direction by attaching the holding member h to both ends of the cylindrical forming tool m.
  • the use of the holding member h prevents the magnitude of strain generated in the shaft axial direction from fluctuating in the circumferential direction of the shaft. This strain can be uniformly removed over the entire elastic layer, and an OA roller having a more uniform elastic layer can be obtained. Furthermore, the shaft 11 is positioned at the center of rotation of the elastic layer 12 in the OA roller obtained by holding the shaft 11 using the holding member h during heating. Therefore, there is no fluctuation of the elastic layer thickness when using the OA roller, and good image forming characteristics can be obtained.
  • the OA roller according to the embodiment of the present invention is a roller obtained by the manufacturing method according to the embodiment of the present invention (see FIG. 1 (f)).
  • a shaft 11 and a cylindrical elastic layer 2 made of a resin foam formed on the outer periphery of the shaft 11 are provided, and a cell of the resin foam near the surface of the elastic layer 2 is compressed and deformed in the radial direction of the roller.
  • the shaft 11 has a shape in which the axial distortion is removed. Since the cell of the resin foam is compressed and deformed in the radial direction of the roller, the surface of the elastic layer 2 is smooth and the cell density on the surface (measured at 1 mm from the surface) is larger than the internal cell density. (For example, 1.05 times to 3.00 times).
  • the OA roller of the present invention is not limited to the toner supply roller, and can be used for various rollers such as a transfer roller and a cleaning roller.
  • a material suitable for the elastic layer in the present invention is not particularly limited.
  • thermoplastic foam such as polyethylene, polyvinyl chloride, polystyrene, polyvinyl alcohol, viscose, ionomer, or urethane
  • rubber foam epoxy, phenol urea.
  • thermosetting foams such as pyranyl, silicone, and acrylic, and urethane is particularly preferable.
  • the cell form of the elastic layer can be used in any form such as single foam, open foam, etc., however, open foam is preferable because the dimensional change due to temperature is small.
  • the polyol is not particularly limited, and any hydrophobic or hydrophilic polyol can be used. It does not specifically limit as isocyanate, A well-known thing can be used.
  • the elastic layer may be made of a conductive material.
  • conductive materials for imparting conductivity include conductive carbon such as ketjen black EC and acetylene black, SAF, ISAF, HAF, FEF, GPF, SRF, FT, MT, etc.
  • conductive polymers such as metal oxides, polyaniline, polypyrrole, and polyacetylene.
  • carbon black is inexpensive and easy to control conductivity with a small amount.
  • these conductive materials are preferably used in an amount of 0.5 to 50 parts by weight, particularly 1 to 30 parts by weight, based on 100 parts by weight of urethane.
  • ionic conductive substances include inorganic ionic conductive substances such as sodium perchlorate, lithium perchlorate, calcium perchlorate, lithium chloride, tridecylmethyldihydroxyethylammonium perchlorate, lauryltrimethylammonium perchlorate, Modified Aliphatic Dimethylethylammonium Ethosulphate, N, N-Bis (2-hydroxyethyl) -N- (3'-dodecyloxy-2'-hydroxypropyl) methylammonium etosulphate, 3-Lauramidopropyl-Toeimethylammonium Methyl sulfate, stearamidopropyldimethyl- ⁇ -hydroxyethyl-ammonium dihydrogen phosphate, tetrabutylammonium borofluoride, stearylammonium acetate, Organic ionic conductive materials or charge transfer complexes such as perchlorates, sulfates, ethosulphate
  • Examples 1 to 3 Roller material in which an elastic layer made of urethane foam as a resin foam is attached and fixed to a cylindrical shape with an outer diameter of 15 mm and a length of 220 mm on the outer periphery of a metal solid shaft (length: 250 mm, diameter: 6 mm) Prepared.
  • This elastic layer urethane foam was made of ester, the average cell diameter was 270 ⁇ m, and the hardness was 80 Ask-F.
  • a metal pipe (SUS304, inner diameter 14.1 mm, thickness 1.5 mm) was prepared as a cylindrical forming tool.
  • the roller material was inserted into the metal pipe from one end of the metal pipe.
  • the compression ratio of the elastic layer of the roller material was 11%.
  • Example 2 the shaft of the roller material inserted into the metal pipe was moved in the direction opposite to the insertion direction.
  • This amount of movement is 2 mm in Example 1 based on 2.0 mm which is the amount of distortion in the axial direction of the shaft generated in the elastic layer of the roller material in the cylindrical molding tool when the amount of movement is 0 mm as Comparative Example 1.
  • the thickness was 4 mm, and in Example 3, the thickness was 10 mm.
  • each roller material of Examples 1 to 3 and Comparative Example 1 was heated with a metal pipe at 150 ° C. for 60 minutes. After heating, the temperature was lowered to room temperature, and then the roller material was removed from the metal pipe.
  • OA rollers of Examples 1 to 3 and Comparative Example 1 had an outer diameter of 14 mm.
  • the strain amount in the axial direction of the shaft and the strain of the cell in the elastic layer of these OA rollers were measured, and the strain of the cell was evaluated.
  • the results are shown in Table 1.
  • Table 1 regarding the cell strain, the cell shape in the radial cross section from the surface of the elastic layer toward the shaft is observed with a microscope. The case where a strain with a ratio of the short side of 2 or less was observed was evaluated by ⁇ , and the case of a strain with a ratio of the long side to the short side of the cell diameter exceeding 2 was evaluated by a mark x.
  • Comparative Example 1 in which the shaft of the roller material inserted into the metal pipe in the manufacturing process of the OA roller was not moved in the direction opposite to the direction of insertion was obtained in the shaft axial direction of the elastic layer of the OA roller.
  • the strain amount (average value) was 2.0 mm, and the cell strain was evaluated as x, whereas the roller material shaft inserted in the metal pipe was in the direction opposite to the insertion direction.
  • Examples 1, 2 and 3 which were moved by 2 mm, 4 mm and 10 mm respectively, the strain amount in the shaft axial direction was smaller than that of Comparative Example 1, and the strain of the cell was also smaller.
  • Example 1 In Table 1, the amount of strain in the shaft axis direction of Example 3 has a negative value because the amount of movement in the direction opposite to the direction of insertion is large, which is opposite to the direction at the time of insertion. Shows that distortion has been introduced. However, the amount of strain introduced in the reverse direction of Example 3 was smaller than that of Comparative Example 1. Among Examples 1 to 3, Example 1 and Example 2 having the same or approximate amount of movement as the amount of strain in the shaft axis direction of Comparative Example 1 have a greater amount of strain in the shaft axis direction than Example 3. The cell distortion was also small.
  • Example 4 and Comparative Example 2 A roller material having the same dimensions and materials as those of Example 1 and Comparative Example 1 was prepared except that the outer diameter of the elastic body of the roller material was 18 mm. Moreover, the metal pipe of the same dimension and material as Example 1 and Comparative Example 1 was prepared as a cylindrical shaping
  • the amount of movement in Example 4 is 3 mm based on 2.7 mm, which is the amount of distortion in the shaft axis direction generated in the elastic layer of the roller material in the cylindrical molding tool when the amount of movement is 0 mm as Comparative Example 2. did.
  • Each roller material of Example 4 and Comparative Example 2 was heated under the same heating conditions as in Example 1 while being held by the holding member in the same manner as in Example 1. After heating, the temperature was lowered to room temperature as in Example 1, and then the roller material was removed from the metal pipe.
  • the OA rollers of Example 4 and Comparative Example 2 thus obtained had an outer diameter of 14 mm.
  • the strain amount in the axial direction of the shaft and the strain of the cell in the elastic layer of these OA rollers were measured, and the strain of the cell was evaluated.
  • the results are also shown in Table 1. From Table 1, Comparative Example 2 in which the shaft of the roller material inserted into the metal pipe in the manufacturing process of the OA roller was not moved in the direction opposite to the direction of insertion was obtained in the shaft axial direction of the elastic layer of the OA roller.
  • the strain amount (average value) was 2.7 mm, and the cell strain was evaluated as “x”, whereas the shaft of the roller material inserted into the metal pipe was reverse to the insertion direction.
  • Example 4 which was moved to the same extent as the amount of strain in the shaft axis direction of Comparative Example 2, the amount of strain in the shaft axis direction was smaller than that of Comparative Example 2, and the strain of the cell was also small.
  • Example 5 and Comparative Example 3 The same roller material as in Example 1 and Comparative Example 1 was prepared, except that the urethane foam of the elastic layer was made of an ester-based material, an average cell diameter of 540 ⁇ m, and a hardness of 50 Ask-F. Moreover, the metal pipe of the same dimension and material as Example 1 and Comparative Example 1 was prepared as a cylindrical shaping
  • the amount of movement in Example 5 is 3 mm based on 3.0 mm which is the amount of distortion in the shaft axial direction generated in the elastic layer of the roller material in the cylindrical molding tool when the amount of movement is 0 mm as Comparative Example 3. It was.
  • These roller materials of Example 5 and Comparative Example 3 were heated under the same heating conditions as in Example 1 while being held by the holding member in the same manner as in Example 1. After heating, the temperature was lowered to room temperature as in Example 1, and then the roller material was removed from the metal pipe.
  • the OA rollers of Example 5 and Comparative Example 3 thus obtained had an outer diameter of 14 mm.
  • the strain amount in the axial direction of the shaft and the strain of the cell in the elastic layer of these OA rollers were measured, and the strain of the cell was evaluated.
  • the results are also shown in Table 1. From Table 1, Comparative Example 3 in which the shaft of the roller material inserted into the metal pipe in the manufacturing process of the OA roller was not moved in the direction opposite to the direction of insertion was obtained in the axial direction of the elastic layer of the OA roller.
  • the strain amount (average value) was 3.0 mm, and the cell strain was evaluated as x.
  • the shaft of the roller material inserted in the metal pipe was opposite to the insertion direction.
  • Example 4 which was moved by the same amount as the amount of strain in the shaft axis direction of Comparative Example 3, the amount of strain in the shaft axis direction was smaller than that of Comparative Example 3, and the strain of the cell was also small.
  • Example 6 An OA roller was produced in the same manner as in Example 1 except that the holding member was not used to hold both ends of the roller material before heating.
  • the shaft runout of the obtained OA roller was measured using a laser size measuring instrument. The results are shown in a graph in FIG. 8 in comparison with Example 1.
  • Example 6 that did not use the holding member had a large shaft runout.
  • the amount of strain in the shaft axial direction was 0.5 mm as a result of observing urethane foam cells with an optical microscope, which was larger than that in Example 1, but smaller than that in Comparative Example 1 described above.
  • Example 7 After heating, an OA roller was produced in the same manner as in Example 1 except that the roller material was removed from the cylindrical molding tool at 140 ° C. in the temperature lowering process.
  • the outer diameter of the obtained OA roller is shown as a graph in FIG. 9 in comparison with Example 1.
  • the outer diameter measured by the elastic layer of the roller after being removed from the cylindrical forming tool was larger than that of Example 1.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Cleaning In Electrography (AREA)

Abstract

L'invention porte sur un procédé de fabrication d'un rouleau d'automatisation de bureau, grâce auquel procédé il est possible de fabriquer un rouleau d'automatisation de bureau doté d'une surface lisse n'ayant pas de voile surélevé, et dans lequel une distorsion de cellule ne se produit pas dans la direction d'axe d'arbre. Un matériau de rouleau (10), comprenant un arbre (11) et une couche élastique (12) qui est formée sur la périphérie extérieure de l'arbre (11), est préparé. Le rouleau (10) est inséré dans un moule cylindrique (m) tout en contraignant la couche élastique (12) dans la direction du centre du diamètre. L'arbre (11) est déplacé dans la direction inverse à la direction d'insertion à l'intérieur du moule cylindrique (m) afin d'éliminer des distorsions dans la direction de l'axe de l'arbre (11), qui se sont produites dans la couche élastique du matériau de rouleau. Le matériau de rouleau (10) est chauffé avec le moule cylindrique (m). Un rouleau (1) avec une couche élastique (2) ayant un diamètre extérieur final est obtenu par retrait du matériau de rouleau chauffé (10) à partir du moule cylindrique.
PCT/JP2011/078929 2010-12-16 2011-12-14 Procédé de fabrication d'un rouleau d'automatisation de bureau et rouleau d'automatisation de bureau WO2012081626A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2012548815A JP5638626B2 (ja) 2010-12-16 2011-12-14 Ｏａローラの製造方法及びｏａローラ
CN201180060297.5A CN103261974B (zh) 2010-12-16 2011-12-14 Oa辊的制造方法及oa辊

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-280483 2010-12-16
JP2010280483 2010-12-16

Publications (1)

Publication Number Publication Date
WO2012081626A1 true WO2012081626A1 (fr) 2012-06-21

Family

ID=46244722

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/078929 WO2012081626A1 (fr) 2010-12-16 2011-12-14 Procédé de fabrication d'un rouleau d'automatisation de bureau et rouleau d'automatisation de bureau

Country Status (3)

Country Link
JP (1) JP5638626B2 (fr)
CN (1) CN103261974B (fr)
WO (1) WO2012081626A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014132996A1 (fr) * 2013-03-01 2014-09-04 株式会社ブリヂストン Rouleau de transport de toner et procédé permettant de fabriquer un rouleau de transport de toner

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105082524B (zh) * 2015-08-10 2017-07-18 苏州市创怡盛实业有限公司 辊表面处理方法及表面改性的辊
JP6706437B2 (ja) * 2016-01-14 2020-06-10 シンジーテック株式会社 定着部材の製造方法
CN105711116B (zh) * 2016-03-16 2018-05-22 苏州市创怡盛实业有限公司 海绵辊的内部压缩方法
CN111086924A (zh) * 2020-01-15 2020-05-01 珠海创客新材料科技有限公司 超薄薄膜防皱卷绕方法、卷筒及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167219A (en) * 1981-04-10 1982-10-15 Shinden Kogyo Kk Compression molding of polyurethane foam
JPH09297512A (ja) * 1996-04-30 1997-11-18 Bridgestone Corp ローラ及びその製造方法
JP2004257476A (ja) * 2003-02-26 2004-09-16 Sumitomo Rubber Ind Ltd 弾性体ローラの製造方法
JP2005195709A (ja) * 2003-12-31 2005-07-21 Fuji Enterprise Kk クリーニングローラ、その製造方法及びその製造に使用するモールド

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100461019C (zh) * 2005-03-08 2009-02-11 株式会社普利司通 导电性辊和使用该导电性辊的图像形成装置
JP2007193001A (ja) * 2006-01-18 2007-08-02 Canon Inc 導電性ローラの製造方法
JP5243061B2 (ja) * 2008-02-25 2013-07-24 株式会社ブリヂストン 画像形成装置用ローラーの製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167219A (en) * 1981-04-10 1982-10-15 Shinden Kogyo Kk Compression molding of polyurethane foam
JPH09297512A (ja) * 1996-04-30 1997-11-18 Bridgestone Corp ローラ及びその製造方法
JP2004257476A (ja) * 2003-02-26 2004-09-16 Sumitomo Rubber Ind Ltd 弾性体ローラの製造方法
JP2005195709A (ja) * 2003-12-31 2005-07-21 Fuji Enterprise Kk クリーニングローラ、その製造方法及びその製造に使用するモールド

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014132996A1 (fr) * 2013-03-01 2014-09-04 株式会社ブリヂストン Rouleau de transport de toner et procédé permettant de fabriquer un rouleau de transport de toner
JP2014170028A (ja) * 2013-03-01 2014-09-18 Bridgestone Corp トナー搬送ローラ及びトナー搬送ローラの製造方法
US9715190B2 (en) 2013-03-01 2017-07-25 Bridgestone Corporation Toner conveyance roller and method for manufacturing toner conveyance roller

Also Published As

Publication number Publication date
JPWO2012081626A1 (ja) 2014-05-22
CN103261974B (zh) 2016-02-24
JP5638626B2 (ja) 2014-12-10
CN103261974A (zh) 2013-08-21

Similar Documents

Publication Publication Date Title
JP5638626B2 (ja) Ｏａローラの製造方法及びｏａローラ
US5893821A (en) Roller for electrophotographic apparatus
JP6096425B2 (ja) トナー供給ローラの製造方法
EP2963501B1 (fr) Rouleau de transport de toner et procédé permettant de fabriquer un rouleau de transport de toner
JP2005047266A (ja) 二層ロールの製造方法及び円筒部材の製造方法
JP5937367B2 (ja) Ｏａローラの製造方法
WO2021085365A1 (fr) Dispositif d'apport en papier, rouleau d'apport en papier et rouleau de séparation
JPH09297512A (ja) ローラ及びその製造方法
JP4442812B2 (ja) 現像ロール
JP2007121445A (ja) 帯電ローラ
JPH1195541A (ja) 現像剤搬送ローラ及びその製造方法
JP2003156930A (ja) トナー搬送ローラの製造方法、トナー搬送ローラおよびこれを用いた画像形成装置
JP6452532B2 (ja) 発泡弾性ローラの製造方法
CN105082524A (zh) 辊表面处理方法及表面改性的辊
JP4570385B2 (ja) 現像ローラ及びそれを用いた画像形成装置
JP5142423B2 (ja) トナー供給ローラおよびこれを用いた画像形成装置
JP2006106352A (ja) トナー供給ローラ
WO2022092191A1 (fr) Rouleau d'alimentation en papier et dispositif d'alimentation en papier
JP2008102181A (ja) ローラの芯及びローラ
JP5568455B2 (ja) 電子写真機器用スポンジロールおよび電子写真機器用スポンジロールの製造方法
JP2018155844A (ja) トナー搬送ローラ及びその製造方法
JP2018028637A (ja) 画像形成装置用チューブ
JP6899581B2 (ja) 塗膜転写具
JP5300316B2 (ja) 弾性ローラの製造方法
JP2007047322A (ja) 導電性部材及びその製造方法、プロセスカートリッジ、及び、画像形成装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180060297.5

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11849706

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2012548815

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11849706

Country of ref document: EP

Kind code of ref document: A1