JP2016142340A - Rubber roll, and manufacturing method of rubber roll - Google Patents

Abstract

The present invention provides a rubber roll excellent in the meandering adjustment ability of a steel plate when the steel plate is conveyed.
A rubber roll 1a is a bridle roll. The rubber roll 1a includes a cylindrical roll body 2a and an elastic layer 5 lined with a rubber material on the outer peripheral surface side of the roll body 2a, and a fiber region 7a is formed on the surface of the elastic layer 5 on the roll body 2a. In order to extend in a direction crossing the axial direction, a plurality of extending directions are aligned along the axial direction.
[Selection] Figure 1

Description

  The present invention relates to a rubber roll and a method for producing a rubber roll.

  In the cold rolling process at a steel mill, before the rolled steel sheet is wound, a process of imparting tension to the steel sheet being conveyed is performed with a rubber roll having increased frictional force to prevent variation in sheet thickness during rolling. When the steel sheet slips and meanders, winding of the wound coil (so-called bamboo shoots) occurs. Therefore, the rubber roll is required to have a high coefficient of friction for firmly grasping the steel sheet. Patent Document 1 discloses a technique for increasing the friction coefficient of a rubber roll by adding plant-based powder to the rubber in the rubber roll.

Japanese Patent Laid-Open No. 08-188657

  However, when plant-based powder is added to rubber as in Patent Document 1, the steel sheet cannot be sufficiently grasped at a place where oil is attached to the surface of the rubber roll or a place where the tension applied to the steel sheet is relatively small. A steel plate may meander, and there exists a problem that the meandering adjustment capability is not enough.

  This invention is made paying attention to said problem, Comprising: It aims at providing the manufacturing method of the rubber roll which is excellent in the meandering adjustment capability of a steel plate, and a rubber roll.

In order to solve the above problems, an aspect of the rubber roll of the present invention is a rubber roll comprising a cylindrical roll body and an elastic layer lined with a rubber material on the outer peripheral surface side of the roll body. The gist of the invention is that a plurality of fiber regions are formed along the axial direction so that the fiber regions extend in the direction intersecting the axial direction of the roll body on the surface of the elastic layer.
An aspect of the rubber roll manufacturing method of the present invention is a method of manufacturing a rubber roll comprising a cylindrical roll body and an elastic layer lined with a rubber material on the outer peripheral surface side of the roll body. The gist of the invention includes a step of forming a plurality of fiber regions along the axial direction so that the fiber regions extend in the direction intersecting the axial direction of the roll body on the surface of the elastic layer.

  Therefore, according to this invention, the rubber roll excellent in the meandering adjustment capability of the steel plate can be obtained.

It is a perspective view explaining the outline of the rubber roll concerning an embodiment of the invention by notching a part. It is a front view which shows the outline of the rubber roll which concerns on embodiment of this invention. It is a figure which shows typically the rolling equipment with which the rubber roll which concerns on embodiment of this invention is used. It is sectional drawing which shows the outline when the rubber roll which concerns on embodiment of this invention is cut in the plane containing an axis | shaft. It is an enlarged view of A part in FIG. FIG. 6 is an enlarged view of a portion B in FIG. 5. It is sectional drawing explaining roughly the state which the ceramic hollow body broke. It is a front view which illustrates typically the manufacturing method of the rubber roll which concerns on embodiment of this invention (the 1). It is a front view which illustrates typically the manufacturing method of the rubber roll which concerns on embodiment of this invention (the 2). It is a front view which illustrates typically the manufacturing method of the rubber roll which concerns on embodiment of this invention (the 3). It is a front view which illustrates typically the manufacturing method of the rubber roll which concerns on embodiment of this invention (the 4). It is a front view which shows typically the outline of the rubber roll which concerns on other embodiment of this invention, notching a part.

  Embodiments of the present invention will be described below. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, the drawings are schematic, and it should be noted that the relationship between the thickness and the planar dimensions, the ratio of the thickness of each device and each member, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings. Also, the directions of “left and right” and “up and down” in the following description are merely definitions for convenience of description, and do not limit the technical idea of the present invention. Thus, for example, if the paper is rotated 90 degrees, “left and right” and “up and down” are read interchangeably, and if the paper is rotated 180 degrees, “left” becomes “right” and “right” becomes “left”. Of course.

(Rubber roll structure)
As shown in FIG. 3, the rubber roll 1a according to the embodiment of the present invention winds a final stand 11 of a tandem rolling mill for rolling a steel plate and a rolled steel plate 14 in a cold rolling facility in an iron factory. It is provided between the carousel reel 13 to be taken and used as a bridle roll that applies tension to the steel plate 14 being conveyed. The bridle roll shown in FIG. 3 has upper and lower two-stage rubber rolls 1c and 1d arranged on the inlet side and upper and lower two-stage rubber rolls 1a and 1b arranged on the outlet side. The rubber roll 1a according to the embodiment of the present invention is applied to upper and lower two-stage rubber rolls 1a and 1b arranged on the outlet side, and the lower rubber roll 1a will be described below as an example.

  As shown in FIGS. 1, 2 and 4, the rubber roll 1a includes a hollow cylindrical carbon steel roll body 2a and a cylindrical roll shaft 2b provided through the roll body 2a through the shaft. And an ebonite layer 3 lined on the outer peripheral surface of the roll body 2a, and an elastic layer 5 lined on the outer peripheral surface of the ebonite layer 3. The elastic layer 5 is composed of rubber layers 6 and fiber layers 7 arranged alternately along the axial direction of the rubber roll 1a. As shown in FIGS. 1 and 2, the surface of the elastic layer 5 is formed such that a plurality of rubber regions 6a and a plurality of fiber regions 7a appear alternately and repeatedly in the axial direction.

The rubber region 6 a is the surface of the rubber layer 6, and the fiber region 7 a is the surface of the fiber layer 7. When the outer peripheral surface of the rubber roll 1a is viewed from the front, the rubber region 6a and the fiber region 7a both extend so as to intersect at a predetermined angle θ1 with respect to the axial direction as shown in FIG. The angle θ1 on the acute angle side between the rubber region 6a and the fiber region 7a and the axial direction can be set to about 20 degrees.
The extending direction of the rubber region 6a and the extending direction of the fiber region 7a are aligned and are parallel to each other. The plurality of rubber regions 6 a are formed in a spiral shape similar to a so-called Archimedes spiral along the axial direction with the same width except for both ends in the axial direction so as to go around the outer peripheral surface of the elastic layer 5. Each of the plurality of fiber regions 7a is also formed in a spiral shape with an equal width except for both ends in the axial direction on the outer peripheral surface of the rubber roll 1a so as to go around the rubber roll 1a, similarly to the rubber region 6a. . FIG. 1 shows a state in which a part of the elastic layer 5 is partly cut out along the spiral, and is second from the one end of the rubber roll 1a shown on the back side in the figure to the upper part of the outer peripheral surface. The state in which the fiber region 7a that appears appears in a spiral as shown by a broken line and continues to the position of the notch is shown.

The ebonite layer 3 is interposed between the elastic layer 5 and the roll body 2a, and improves the adhesion between the elastic layer 5 and the roll body 2a. Since the rubber roll 1a has the ebonite layer 3, even if the line load applied to the rubber roll 1a by rolling increases, the burden on the bonding portion between the elastic layer 5 and the roll body 2a is buffered, and the elastic layer 5 It can suppress peeling from 1a.
As shown in FIG. 5, the elastic layer 5 is provided with a rubber layer 6 and a fiber layer 7 having a predetermined thickness inclined at a predetermined angle θ2 with respect to the outer peripheral surface of the ebonite layer 3. . The acute angle angle θ2 formed by the rubber layer 6 and the fiber layer 7 with respect to the outer peripheral surface of the ebonite layer 3 can be set as appropriate. In the elastic layer 5 illustrated in FIG.

The rubber layer 6 and the fiber layer 7 are overlapped and bonded to each other. The outer peripheral surface of the elastic layer 5 is such that the surface of the rubber layer 6 and the end of the fiber layer 7 opposite to the ebonite layer 3 appear repeatedly in the axial direction, whereby a plurality of rubber regions 6a and a plurality of fiber regions 7a Is formed. The outer peripheral surface of the elastic layer 5 is a surface with which the main surface of the steel plate 14 comes into contact, and the steel plate 14 is conveyed in contact with the plurality of rubber regions 6a and the plurality of fiber regions 7a simultaneously.
The length of the repetitive pitch composed of the length Wg in the axial direction of the rubber region 6a and the length Ws in the axial direction of the fiber region 7a can be formed to about 3 mm, for example. In the case of the rubber roll 1a shown in FIG. 5 is repeatedly formed at a pitch of about 34 times. The length Wg of the rubber region 6a can be formed to be about Wg = 5 to 7 mm. Further, the length Ws of the fiber layer 7 is shorter than the length Wg of the rubber layer 6 and can be formed to be about Ws = 1 to 1.5 mm. The elastic layer 5 shown in FIG. 5 is configured to have Ws: Wg = 1: 4 to 7 and can have a high coefficient of friction with respect to the steel plate 14.

  Inside the rubber layer 6, the cross-sectional shape when the rubber roll 1 a is cross-sectioned by a plane including the axis is a substantially parallelogram shape except for both ends in the axial direction of the elastic layer 5. Therefore, it is formed in substantially equal width in the thickness direction (vertical direction in FIG. 5). The fiber layer 7 is sandwiched between the hypotenuses of the parallelograms of the adjacent rubber layers 6, 6 and is interposed between the rubber layers 6. The cross-sectional shape of the fiber layer 7 is a trapezoidal shape in which one of the two base angles is approximately 90 degrees and the other is an acute angle of the angle θ2, and the hypotenuse on the base angle side of the acute angle is on the outer peripheral surface of the ebonite layer 3. It is provided in a bonded state. That is, the base angle on the right side of the trapezoid is provided toward the outer peripheral surface side of the rubber roll 1a. Further, the end portion of the fiber layer 7 forming the base angle on the right side of the trapezoid protrudes outward in the radial direction of the rubber roll 1a from the surface of the rubber layer 6, and is formed in a mountain shape. The fiber layer 7 is formed by weaving a fiber material such as nylon, cotton, polyester, glass fiber or the like, and is not impregnated with a rubber material.

As shown in FIG. 6, the rubber layer 6 is formed by blending a plurality of spherical ceramic hollow bodies 12 _n−2 , 12 _n−1 , 12 _n , 12 _{n + 1} , 12 _{n + 2} . . Examples of the main component of the rubber material include ethylene propylene rubber (EPDM), chlorosulfonated polyethylene rubber (CSM), chlorinated polyethylene rubber (CPE), acrylonitrile butadiene rubber (NBD), and hydrogenated acrylonitrile butadiene rubber (H- NBR) or the like can be used. In the embodiment of the present invention, hydrogenated acrylonitrile butadiene rubber (H-NBR) is used.

Ceramic hollow bodies 12 _n−2 , 12 _n−1 , 12 _n , 12 _{n + 1} , 12 _{n + 2} ... Are hollow and have a substantially spherical shape. The hollow ceramic body in FIGS. 6 and 7 is shown in a hollow state by a broken line. As the ceramic hollow body, a so-called ceramic balloon that is commercially available as a surface modifying material can be used. Ceramic hollow bodies 12 _n−2 , 12 _n−1 , 12 _n , 12 _{n + 1} , 12 _{n + 2} ... Are respectively spaced within the rubber layer 6 and on the outer peripheral surface side of the elastic layer 5 as shown in FIG. They are arranged with irregular depth. Then, as exemplified by the three ceramic hollow bodies 12 _n−2 , 12 _n , and 12 _{n + 2} located at both ends and near the center in FIG. 7, the ceramic hollow body located near the outer peripheral surface of the elastic layer 5 is As shown by the downward arrow in FIG. 7, it is configured to be easily broken when a load is applied when contacting the steel plate 14 being conveyed.

The surface of the rubber layer 6 before the cracking of the ceramic hollow body is relatively smooth. However, when the ceramic hollow body is cracked, many irregular irregularities are formed on the surface of the rubber layer 6, and the surface of the rubber layer 6 is rough. A state is formed. In addition, since the ceramic hollow body is hollow, it is possible to form a finer crushed state than when it is solid, and it is possible to increase the degree of roughness of the surface of the rubber layer 6, and the rubber roll 1a The friction coefficient can be increased and the wear resistance can be improved.
The particle size of the ceramic hollow body is preferably 20 μm or more and 300 μm or less. When the thickness is less than 20 μm, the amount of cracking of the ceramic hollow body is reduced even when a load from the steel plate 14 is received, and a high friction coefficient cannot be imparted to the rubber layer 6. On the other hand, when the thickness exceeds 300 μm, the ceramic hollow body is easily cracked at the time of the rubber kneading operation, so that the desired friction coefficient of the rubber layer 6 cannot be stably obtained. That is, it becomes difficult to control the degree of cracking of the ceramic hollow body.

  The ceramic hollow body is blended at a ratio of 1 wt% to 15 wt% with respect to the rubber material of the rubber layer 6. Table 1 shows changes in physical property values of the rubber layer 6 obtained when the ceramic hollow body has a particle size of 20 μm or more and 300 μm or less and the blending ratio of the ceramic hollow body is changed.

The tensile strength shown in Table 1 was measured according to JIS K 62513 dumbbell-shaped No. 3 test piece. In addition, the friction coefficient is obtained by manufacturing the rubber roll 1a and winding a stainless steel strip (0.6 t × 14 width) on the lathe so as to be bent approximately 90 degrees along the outer peripheral surface of the manufactured rubber roll 1a. A weight was applied to the lower part of the steel strip, and a scale was attached to the upper part and fixed to the tool post. And while rotating the rubber roll 1a at 25 rpm, the relationship between the weight and the load applied to the balance was measured and calculated.
As shown in Table 1, when the ceramic hollow body is blended at a ratio of 1% by weight or more and 15% by weight or less, the tensile strength is a size within the range of not blending at all (0%). Can be about 1.3 times larger than when not blended at all (0%).
On the other hand, when the blending ratio is less than 1% by weight, the tensile strength and the friction coefficient are almost the same as when none is blended (0%), and the friction coefficient of the rubber roll cannot be increased. When the blending ratio exceeds 15% by weight, the tensile strength is lower than when none is blended (0%), and the function as the rubber roll 1a cannot be achieved. Table 2 shows the results of evaluating the meandering adjustment ability, the wear amount, and the roll life using the rubber roll according to the embodiment of the present invention as the two bridle rolls shown in FIG.

In Table 2, in the rubber roll according to Comparative Example 1, the elastic layer is composed of only the rubber tape 16 without the fiber tape 17, and has a particle size of 20 μm or more and 300 μm or less in the rubber material mainly composed of H-NBR. The ceramic hollow body is blended at a ratio of 1% by weight to 15% by weight. In the rubber roll according to Comparative Example 2, the elastic layer has the fiber tape 17, and the ceramic hollow body is not blended in the rubber material mainly composed of H-NBR.
For evaluation of wear resistance, the roll profile of the bridle roll was measured, and the depth of the most worn part of the roll was defined as the amount of wear. In addition, the meandering adjustment capability is such that after the operation is started by applying the rubber roll 1a according to the embodiment of the present invention, the winding deviation generated in the coil wound around the carousel reel exceeds the specified allowable range. Evaluation was made during the period of use of the rubber roll 1a up to this point. In the table, the value of the meandering adjustment ability of Comparative Example 2 and Examples was expressed as a ratio when the value of Comparative Example was 1.

The roll life was defined as the trial period that came first in the use period when the steel sheet slipped or the use period when the rubber hardness reached 100. The rubber hardness was measured with a rubber hardness meter (GS-719N type A) manufactured by TECKLOCK, and the measurement method was performed according to JIS k 6253A.
As shown in Table 2, the rubber roll according to the example was not more than half of Comparative Example 1 in terms of wear resistance, and was able to suppress the wear amount to about one fifth of that of Comparative Example 2. Further, the meandering adjustment ability was prevented from being wound for a period twice that of Comparative Example 1 and four times that of Comparative Example 2. In addition, the roll life did not slip for a period twice as long as that of Comparative Example 1 and four times as long as that of Comparative Example 2.

  Further, in the case of a rubber roll having an elastic layer blended with a ceramic hollow body, the particle size is as small as 20 μm or more and 300 μm or less. Further, when the elastic layer was peeled from the rubber roll, relining could be performed without damaging the cutting tool. In this regard, a rubber containing a ceramic material formed into a polygonal shape having an angular portion rather than a spherical ceramic hollow body, or a ceramic material formed into a solid and larger diameter even in a spherical shape When a rubber roll having an elastic layer of the material was used for comparison, the steel sheet was pressed to cause poor quality, and the bite was damaged when the elastic layer was peeled off, so that relining was impossible. That is, the ceramic hollow body used in the embodiment of the present invention is hollow and formed into a spherical shape with a particle size of 20 μm or more and 300 μm or less, thereby suppressing adverse effects on the steel sheet and improving the workability of the lining work. The friction coefficient of the rubber roll 1a can be efficiently increased by forming a moderately cracked state while increasing.

According to the rubber roll 1a according to the embodiment of the present invention, the fiber region 7a is repeatedly formed on the outer peripheral surface of the elastic layer 5 at a predetermined pitch in the axial direction, whereby the steel plate 14 is displaced in the axial direction of the rubber roll 1a. A high frictional force is generated with respect to the movement to be performed, and the meandering of the steel sheet 14 can be effectively suppressed. Therefore, it can be set as the rubber roll excellent in the meandering adjustment capability, and it can improve abrasion resistance with a frictional force increasing.
Further, since the end portion of the fiber layer 7 is formed so as to protrude outward in the radial direction from the surface of the rubber layer 6, the outer peripheral surface of the rubber roll 1a is formed by a mountain-shaped fiber region 7a and a flat rubber region 6a. The concavo-convex pattern is repeatedly formed in the axial direction. Therefore, a higher frictional force can be generated on the steel plate 14 that contacts the outer peripheral surface of the rubber roll 1a.
Further, even if the surface of the elastic layer 5 is worn and the inside is exposed due to the use of the rubber roll 1a over time, a repeated pattern of the rubber layer 6 and the fiber layer 7 appears in the exposed portion, so that it is higher than the steel plate 14. The frictional force can continue to act, and the life of the rubber roll 1a can be extended.

(Rubber roll manufacturing method)
Next, the manufacturing method of the rubber roll 1a which concerns on embodiment of this invention is demonstrated with reference to FIGS. First, as shown in FIG. 8, a roll body having an ebonite layer 3 lined on the outer peripheral surface is prepared. Next, a belt-shaped rubber tape 16 and a fiber tape 17 are prepared for a predetermined length. The rubber tape 16 is a material forming the rubber layer 6 after being lined on the ebonite layer 3, and the ceramic hollow body 12 _n −2, 12 _n−1 , 12 _n , 12 _{n + 1} , 12 _{n + 2} . It is blended at a predetermined ratio. As the rubber tape 16, for example, a rectangular parallelepiped material having a rectangular cross section can be used.
The fiber tape 17 is a material that forms the above-described fiber layer 7 after being lined on the ebonite layer 3, and is woven with predetermined fibers. The fiber tape 17 is thinner than the rubber tape 16, and for example, a sheet-like tape whose main surface is rectangular can be used. 9 to 11, for the sake of explanation, illustration of the end portions of the rubber tape 16 and the fiber tape 17 on the lining end side in the longitudinal direction (the tip located on the left side in the drawing) is omitted.

Next, as shown in FIG. 9, one side surface on one end side in the longitudinal direction of the rubber tape 16 is attached to the end portion on the one side (right side in FIG. 9) of the rubber roll 1 a on the outer peripheral surface of the ebonite layer 3. It is wound around the outer peripheral surface of the ebonite layer 3 while being bonded. At this time, the rubber tape 16 is rotated so that the longitudinal direction of the rubber tape 16 to be wound forms a predetermined angle θ1 with the axial direction, and the rubber tape 16 is spirally wound as indicated by a rotation arrow in FIG.
Further, when the rubber tape 16 is wound, the outer periphery of the ebonite layer 3 remains deformed so that the cross-sectional shape is a substantially parallelogram, as exemplified by the cross-sectional shape of the upper rubber tape 16 in FIG. Adhere to the surface. The parallelogram is formed such that two inner angles forming an acute angle among the four inner angles are a predetermined angle θ2. That is, the side surface 16 a that forms the oblique side on the front side (left side in FIG. 9) of the parallelogram-shaped spiral of the rubber tape 16 is inclined with respect to the outer peripheral surface of the ebonite layer 3 at a predetermined angle θ2. In order to deform the rubber tape 16, for example, while rotating the roll body 2a, the rubber tape 16 is adhered to one end of the upper surface of the ebonite layer 3 of the rotating roll body 2a while being inclined at a predetermined angle θ2. it can.
At the same time as the rubber tape 16 is wound, the main surface 17a on one end side in the longitudinal direction of the fiber tape 17 is bonded to the inclined side surface 16a on the front side of the spiral of the rubber tape 16, and the fiber tape 17 and the rubber tape 16 are bonded together. . Therefore, the fiber tape 17 also circulates around the outer peripheral surface of the ebonite layer 3 in parallel with the rubber tape 16 in a state where the fiber tape 17 is inclined at a predetermined angle θ2 according to the inclined side surface 16a of the rubber tape 16.

Then, as shown in FIG. 10, on the inclined main surface of the fiber tape 17 included in the spiral circle formed in advance, the rubber tape 16 included in the subsequent spiral circle is inclined on the rear side in the spiral traveling direction. The side surfaces 16b are overlapped. The fiber tape 17 included in the preceding spiral circle is sandwiched between the rubber tape 16 included in the preceding spiral circle and the rubber tape 16 included in the succeeding spiral circle.
In addition, when the fiber tape 17 inclines the rubber tape 16 and the fiber tape 17 and adhere | attaches it on the outer peripheral surface of the ebonite layer 3, as shown in FIG. 5, the edge part on the opposite side to the ebonite layer 3 of the fiber layer 7 is shown. Is set to a length protruding from the upper surface of the rubber layer 6 to the radially outer side of the rubber roll 1a. 9 to 11, illustration of the state in which the fiber tape 17 protrudes is omitted for convenience.

  While superposing the inclined rear side surface 16b of the rubber tape 16 included in the subsequent spiral circle on the inclined surface of the fiber tape 17 included in the preceding spiral circle, the rubber tape 16 and the fiber tape 17 are placed in the longitudinal direction of the rubber roll 1a. Wrap from one end to the other. And as shown in FIG. 11, the rubber tape 16 and the fiber tape 17 coat | cover all the outer peripheral surfaces of the ebonite layer 3, and an elastic layer is formed. That is, in the manufacturing method of the rubber roll 1a according to the embodiment of the present invention, the roll body 2a is not lined by using a sheet-like rubber having a width substantially the same as the length in the longitudinal direction of the roll body 2a as in the prior art. A rectangular parallelepiped rubber tape 16 having a thickness and a width shorter than the length in the longitudinal direction and the fiber tape 17 are tightly wound in a spiral shape in a state where the fiber tape 17 is inclined at a predetermined angle θ2 with respect to the axial direction. The rubber roll 1a and the fiber tape 17 sandwiched between the adjacent rubber rolls 1a and 1a are integrated to form an elastic layer for lining. In addition, in order to improve the adhesiveness between the rubber tape 16 and the fiber tape 17, an adhesive may be used as appropriate.

Then, the unnecessary excess part which protrudes from the ridgeline of a roll main body of the both ends of the rubber tape 16 and the fiber tape 17 is cut and care is performed, and the rubber roll 1a is shape | molded. Then, the rubber roll 1a shown in FIGS. 1 to 7 is manufactured by subjecting the formed rubber roll 1a to predetermined vulcanization processing and dimensioning processing.
According to the method for manufacturing the rubber roll 1a according to the embodiment of the present invention, while the inclined side surface of the rubber tape 16 included in the subsequent spiral circle is superimposed on the inclined surface of the fiber tape 17 included in the preceding spiral circle, The winding operation of the rubber tape 16 and the fiber tape 17 is performed in parallel. Therefore, the fiber tape 17 is tightly sandwiched between the rubber tape 16 included in the preceding spiral circle and the rubber tape 16 included in the subsequent spiral circle. Therefore, the integrity of the rubber tape 16 and the fiber tape 17 can be improved, and the fiber tape 17 can be stably disposed in the elastic layer.

In the method for manufacturing the rubber roll 1a according to the embodiment of the present invention, the rubber tape 16 and the fiber tape 17 are wound in a spiral shape at a predetermined angle θ2 with respect to the axial direction, and are lined. Even when the rubber tape 16 is spirally wound around the outer peripheral surface of the roll body, the outer peripheral surface of the elastic layer can be uniformly and smoothly formed along the axial direction without the rubber tape 16 being partially distorted. .
Although the present invention has been described by the embodiments disclosed above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, it should be understood that various alternative embodiments, examples, and operational techniques will become apparent to those skilled in the art. For example, the rubber roll according to the present invention has a plurality of spatially separated rubber layers 8 _m−1 , 8 _m , 8 _{m + 1,} and the like, as in the rubber roll 1x according to another embodiment shown in FIG. An elastic layer 20 composed of fiber layers 9 _p−1 , 9 _p , 9 _{p + 1} ... May be provided on the outer peripheral surface side of the roll body composed of the roll body 2 a and the roll shaft 2 b via the ebonite layer 3. The plurality of rubber layers... 8 _m−1 , 8 _m , 8 _{m + 1} ... And the fiber layers 9 _p−1 , 9 _p , 9 _{p + 1} . May be.

On the surface of the plurality of rubber layers 8 _m−1 , 8 _m , 8 _{m + 1} ..., A plurality of rubber regions 18 _q−1 , 18 _q , 18 _{q + 1} . A plurality of fiber regions 19 _r−1 , 19 _r , 19 _{r + 1} ... Spatially separated from each other are also formed on the surfaces of the fiber layers 9 _p−1 , 9 _p , 9 _{p + 1} . Both the rubber layer and the fiber layer have an angle of about 90 degrees with the axial direction. The other structure of the rubber roll 1x shown in FIG. 12 is the same as that of the rubber roll 1a demonstrated in FIGS. The rubber roll 1x shown in FIG. 12 has a process in which a rubber tape 16 and a fiber tape 17 having substantially the same length as the outer periphery are wound around the outer peripheral surface of the ebonite layer 3 and bonded as one ring. To the other end.

Further, the rubber roll according to the present invention is not limited to the two rubber rolls 1a and 1b forming the bridle roll arranged on the exit side shown in FIG. 3, but the two forming the bridle roll arranged on the entry side. You may apply to the rubber rolls 1c and 1d. Moreover, the rubber roll according to the present invention is not limited to a bridle roll, and may be used as a ringer roll for liquid squeezing to squeeze the treatment liquid adhering to the surface of the steel sheet, for example, other rubber rolls that transport the steel sheet within the steel mill. Good.
Moreover, the rubber roll which concerns on this invention is applicable also as an industrial rubber roll of another industrial field, without the contact object of a rubber roll being limited to a steel plate. For example, it may be a rubber roll used for transporting paper in a paper mill. Moreover, you may comprise each technical idea of embodiment of this invention shown in FIGS. 1-12 and another embodiment combining each other. As described above, the present invention includes various embodiments and the like not described in the present specification and drawings, and the technical scope of the present invention is an invention according to the scope of claims reasonable from the above description. It is determined only by specific matters.

DESCRIPTION OF SYMBOLS 1a Rubber roll 2a Roll main body 2b Roll axis 3 Ebonite layer 5 Elastic layer 6 Rubber layer 6a Rubber region 7 Fiber layer 7a Fiber region 12n Ceramic hollow body 16 Rubber tape 17 Fiber tape

Claims (11)

A rubber roll comprising a cylindrical roll body and an elastic layer lined with a rubber material on the outer peripheral surface side of the roll body,
A rubber roll, wherein a plurality of fiber rolls are formed on the surface of the elastic layer along the axial direction so that fiber regions extend in a direction intersecting the axial direction of the roll body.   The rubber roll according to claim 1, wherein the fiber region is formed around the surface of the elastic layer.   The rubber roll according to claim 2, wherein the fiber region is formed in a spiral shape along the axial direction.   The rubber roll according to any one of claims 1 to 3, wherein the rubber roll is a bridle roll.   The rubber material includes at least one of ethylene propylene rubber, chlorosulfonated polyethylene rubber, chlorinated polyethylene rubber, acrylonitrile butadiene rubber, and hydrogenated acrylonitrile butadiene rubber. The rubber roll as described in any one of Claims.   The rubber roll according to claim 1, wherein the rubber material includes a spherical ceramic hollow body.   The rubber roll according to claim 6, wherein the ceramic hollow body has a particle size of 20 μm or more and 300 μm or less.   The rubber roll according to claim 6 or 7, wherein the ceramic hollow body is blended in the rubber material at a ratio of 1 wt% to 15 wt%. A method of manufacturing a rubber roll comprising a cylindrical roll body and an elastic layer lined with a rubber material on the outer peripheral surface side of the roll body,
A rubber roll comprising a step of forming a plurality of fiber regions along the axial direction so that fiber regions extend in a direction crossing the axial direction of the roll body on the surface of the elastic layer. Manufacturing method.   The method for producing a rubber roll according to claim 9, wherein the fiber region is formed by winding a belt-shaped fiber tape woven with fibers so as to circulate around the surface of the elastic layer. The method for producing a rubber roll according to claim 10, wherein the fiber region is formed by winding the fiber tape in a spiral shape along the axial direction.

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