JP2009041868A - Roll - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive roll capable of quickly and steadily removing, squeezing out, and washing liquid attached to a washed surface for a long time. <P>SOLUTION: The roll is equipped with a roll portion and a base. The roll portion is formed on the outer periphery of the base and contains a roll piece. The base is equipped with a main body having a roll portion on the outer periphery, and joint portions A and B connected to both ends of the main body. A hollow portion is formed so that fluid flows from the joint portion A to the joint portion B. The hollow portion contains an aperture portion whose opening area is minimized. The opening area reduces from the joint portion A towards the aperture portion and increases from the aperture portion to the joint portion B. A plurality of small holes is formed on the outer wall of the main body. A plurality of large holes communicating with the small holes through communication paths are formed on the inner wall of the main body near the downstream side of the aperture portion. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a roll for removing, squeezing, and cleaning liquids such as moisture, oil, or chemical components adhering to a surface to be cleaned made of a steel plate, non-ferrous metal plate, resin plate, or film.

  Various improvements have been made to rolls for removing, squeezing, and cleaning liquids such as moisture, oil, or chemical components adhering to the surface to be cleaned made of steel plates, non-ferrous metal plates, resin plates, or films. In addition, a liquid-absorbing roll formed by superposing a large number of disk-like materials made of a fibrous sheet in which a polymer elastic body is filled with a porous structure in a void of a nonwoven fabric in which ultrafine fibers are three-dimensionally entangled (Patent Document 1) )

  Since the liquid absorption roll of patent document 1 is not equipped with the external device required for liquid absorption, the roll part which consists of a nonwoven fabric layer will be in a liquid absorption saturated state gradually. The liquid removal function for rolls that do not have an external device necessary for liquid absorption allows the liquid to flow from both ends of the surface to be cleaned by rotating the roll while applying a constant pressure such as air pressure via a compressor. In the compression zone where the dam function leaving and the roll is compressed by pressure while being rotated, the liquid absorbed in the gap part of the roll part is once released to the surface to be cleaned, and then the roll is released from the compression by the pressure , The liquid on the surface to be cleaned is sucked up into the roll part by the capillary action of the fibers forming the nonwoven fabric, and is composed of an intake / exhaust function released into the gap part of the roll part. The absorption / exhaustion function is manifested by elastic deformation of the polymer elastic body filled in the nonwoven fabric, so that the porosity of the roll portion becomes 0% in the compression zone and is restored to the original porosity in the open zone. However, when the liquid is repeatedly absorbed and discharged from the gap of the roll part, the polymer elastic body comes into contact with the liquid and gradually swells to lower the elastic modulus, and the open zone Thus, the original porosity cannot be restored. For this reason, the entire volume of liquid sucked up by the capillary action of the fibers cannot be released into the gap portion of the roll portion where the porosity is reduced, and the roll portion becomes saturated with liquid absorption, and the liquid removal function is long. It had the problem of not lasting for a period. As for the relationship between the elastic modulus and swelling degree of the polymer elastic body, Flory's theory of rubber elasticity is known in which the elastic modulus is inversely proportional to the third power of the swelling degree.

  In order to solve the above-mentioned problem, a shaft main body having a liquid absorption function, a non-woven fabric roll composed of a non-woven fabric sheet crimped and superimposed on the shaft main body, and a vacuum pump communicated with the non-woven fabric roll via a pipe A liquid absorption method using a nonwoven fabric roll having a delivery and liquid absorption function, wherein the liquid absorption method is intended to increase the vacuum value due to suction resistance and the function of the capillary tube. The outer surface of the non-woven fabric roll in the non-woven fabric portion in the liquid-absorbing state through a plurality of through holes formed in the shaft main body in a staggered manner in the used state. By making the liquid absorption and liquid feeding capillary part effective in a substantially inverted conical shape toward the direction and acting so that a part of the vacuum suction force acts on the outer surface of the nonwoven fabric roll, Above The idle suction force and liquid absorption method using a nonwoven fabric roll has a structure to uniformly act on the outer surface of the nonwoven fabric roll, the liquid absorbing roll apparatus used in the liquid-absorbing method (Patent Document 2) has been devised.

Japanese Patent Application Laid-Open No. 61-262586 JP-A-7-120145

  The liquid absorption method using the nonwoven fabric roll of Patent Document 2 and the liquid absorption roll device used in this liquid absorption method are not limited to the dam function and the air suction / discharge function of the roll, Therefore, since the liquid is discharged to the outside of the nonwoven fabric roll through the through-hole, cavity portion, and through-hole, the liquid absorption saturation state of the roll portion is suppressed as compared with a roll that does not include an external device necessary for liquid absorption. The removal function is sustained for a long time. However, it has been necessary to newly introduce an external device such as a suction pump, which has a problem of increasing the capital investment cost.

  Moreover, the liquid discharged | emitted outside the nonwoven fabric roll will be attracted | sucked by the suction pump apparatus side. Although the discharged liquid is prevented from flowing into the suction pump device by a filter or the like, a part of the discharged liquid passes through the filter or the like and flows into the suction pump device, and the vacuum suction force gradually decreases. At the same time, since the suction pump is likely to break down, there is a problem that the running cost of the roll such as maintenance cost or repair cost of the suction pump increases.

  The present invention solves the above-described conventional problems, and a roll capable of quickly and surely removing, exploiting, and cleaning the liquid adhering to the surface to be cleaned over a long period of time at a low cost. It is intended to provide.

  In order to solve the above-mentioned conventional problems, the roll of the invention of claim 1 is provided with a liquid such as moisture, oil, or chemical components adhering to the surface to be cleaned made of a steel plate, non-ferrous metal plate, resin plate, or film. In the roll for removal, exploitation, and washing, the roll has a roll portion and a pedestal, the roll portion is formed on the outer peripheral surface of the pedestal, and has a roll piece, and the pedestal is on the outer peripheral surface. It has a main body part in which the roll part is formed, a joint part A and a joint part B connected to both ends of the main body part, and is hollow so that fluid can penetrate from the joint part A to the joint part B. The aperture is formed with a minimum aperture area in the hollow portion, and the aperture area changes from larger to smaller from the joint A toward the aperture opening. , The aperture opening The opening area changes from small to large as it goes to the joint portion B side, and a plurality of small holes are formed in the outer wall surface of the main body, and the large holes are communicated with the small holes through the communication passages. Are provided on the inner wall surface of the main body, and the large hole is formed in the vicinity of the downstream side of the aperture opening, and ejects fluid from the joint part A side to the joint part B side of the base. Then, the kinetic energy of the fluid increases most immediately after passing through the aperture opening. As a result, the pressure energy in the hollow portion in the vicinity of the large hole is reduced most, so a negative pressure is generated in the hollow portion in the vicinity of the large hole, and the pressure configuration in the roll is higher than that in the hollow portion in the vicinity of the large hole. Will be lower. By the way, since the substance moves from the higher pressure side to the lower side, the liquid absorbed in the roll part is discharged from the roll part to the hollow part through the small hole, the communication path, and the large hole. Together with the fluid, it is discharged from the joint portion B side of the base to the outside of the roll. Therefore, since the roll part is suppressed from being saturated with liquid by the liquid, the roll can quickly and reliably remove, squeeze and clean the liquid adhering to the surface to be cleaned over a long period of time. It becomes. In addition, the roll piece which comprises a roll part consists of base materials, such as artificial leather and a nonwoven fabric, and a liquid is absorbed by a roll part by the capillary phenomenon of the fiber which the said base material has.

  The mechanism as described above is based on the law of energy conservation that the sum of the potential energy, kinetic energy, and pressure energy of the fluid is always constant at any arbitrary position in the hollow portion. The law of fluid energy conservation in a pipe line like the hollow portion is generally called Bernoulli's theorem. In the case of the roll of the present invention, the fluid only passes through the hollow portion in the same horizontal direction from the joint portion A to the joint portion B, and the hollow portion is formed so that the fluid flows from the upper part to the lower part or from the lower part to the upper part. Therefore, the potential energy of the fluid is the same at any position in the hollow portion. In addition, the kinetic energy of the fluid becomes maximum because the flow velocity becomes the fastest immediately after passing through the throttle opening where the opening area of the hollow portion becomes the smallest. For this reason, the pressure energy is minimized immediately after passing through the aperture opening where the kinetic energy is maximized, that is, in the vicinity of the large hole. Therefore, when the fluid is passed through from the joint part A to the joint part B, a negative pressure is generated due to a change in the cross-sectional area in the hollow part, so that the liquid absorbed in the roll part moves from a higher pressure to a lower pressure. Therefore, it will be drawn to the main body part of the pedestal, and is discharged to the hollow part through the small hole formed in the outer wall surface of the main body part, the communication path, and the large hole formed in the inner wall surface, Together with the fluid passing through the hollow portion, the fluid is discharged from the joint portion B side to the outside of the roll.

  Further, in the present invention, in addition to the roll, an external device such as an air supply machine that introduces fluid by injection or the like from the joint portion A side is required. However, the roll has conventionally had a constant air pressure or the like by a compressor or the like. Therefore, it is not necessary to introduce an external device for supplying a new fluid because the fluid can be injected into the hollow portion using the compressor or the like. Therefore, the capital investment cost can be suppressed.

  Further, as described above, the liquid absorbed in the roll part is discharged from the joint part B side together with the fluid to the outside of the roll, so that the liquid flows into an external device such as a compressor installed on the joint part A side. Therefore, a stable fluid can be supplied, and a failure does not occur in an external device such as a compressor accompanying the inflow of liquid. Therefore, the running cost of the roll can be suppressed.

  The roll of the invention of claim 2 is the roll of the invention of claim 1 in particular, wherein the aperture opening is formed on the downstream side from the substantially central portion in the longitudinal direction of the main body, and the aperture is drawn from the joint A side. The distance to the opening can be set longer, and the kinetic energy of the fluid can be gradually increased toward the throttle opening, thus preventing fluid pressure loss as much as possible and efficiently applying negative pressure near the large hole. Can be generated. Therefore, the liquid can be efficiently and reliably discharged from the roll portion to the hollow portion.

  The roll of the invention of claim 3 is the roll of the invention of claims 1 to 2, particularly, wherein the small holes are provided at a plurality of locations on the outer wall surface in the longitudinal direction of the main body, and communicated with the large holes provided on the inner wall surface. The communication path is formed in a branched shape so that the liquid absorbed in the roll part is a small hole opened in a plurality of locations on the outer wall surface of the main body part, a communication path formed in a branched shape, It is discharged to the hollow portion through a large hole formed in the inner wall surface of the main body portion. For this reason, the liquid absorbed in the roll part is uniformly discharged from the roll part into the hollow part, so that the liquid discharge and removal function is greatly improved.

  The roll of the invention of claim 4 is the roll of the invention of claims 1 to 3 in particular, and the flow passage having an area equal to or larger than the maximum opening area in the hollow portion is formed outside the end of the main body on the joint part B side. The pressure energy of the fluid outside the end on the joint B side of the main body portion does not become lower than the pressure energy in the hollow portion. Therefore, the fluid and liquid discharged from the outside of the end portion on the side of the joint portion B to the outside of the roll are not attracted to the hollow portion, so that the fluid and liquid are prevented from flowing back to the hollow portion. The

  The roll of the invention of claim 5 is the roll of the invention of claims 1 to 4 in particular, and the opening area of the small hole is smaller to larger as the length of the communication path communicating from the small hole to the large hole becomes larger. In the case where the opening area of the small hole is substantially the same, the pressure energy in the vicinity of the small hole apart from the large hole is higher than the pressure energy in the vicinity of the small hole formed near the large hole. Become. However, by setting the opening area of the small hole in the vicinity of the small hole where the pressure energy is high to be larger than the opening area of the small hole in the vicinity of the small hole where the pressure energy is small, the liquid is hollow from the small hole apart from the large hole. The amount of liquid discharged from the small hole near the large hole and the amount of liquid discharged from the small hole to the hollow part can be made substantially the same, so the liquid absorbed in the roll part away from the large hole is also positive. And it can discharge | emit to a hollow part effectively. For this reason, the function of discharging and removing the liquid absorbed by the roll part is dramatically improved.

  In the roll of the invention of claim 1, since the liquid absorbed in the roll part can be discharged to the outside of the roll together with the fluid by utilizing the negative pressure generated in the hollow part, the liquid absorption saturation state of the roll part Is suppressed, and the service life of the roll can be prolonged.

  In addition, since the capital investment cost and running cost related to the roll can be extremely suppressed, it is possible to provide a roll that can remove, extract and clean the liquid adhering to the surface to be cleaned quickly and surely at low cost. it can.

  Since the roll of the invention of claim 2 can prevent the pressure loss of the fluid, the negative part is efficiently generated in the hollow part, and the liquid absorbed in the roll part is efficiently and reliably discharged into the hollow part. can do.

  In the roll of the invention of claim 3, the liquid absorbed in the roll part can be discharged from the roll part to the hollow part evenly, so that the function of discharging and removing the liquid is greatly improved.

  The roll of the invention of claim 4 can prevent the fluid discharged from the outside of the end portion on the joint portion B side to the outside of the roll and the backflow of the liquid to the hollow portion.

  The roll of the invention of claim 5 is capable of positively and effectively discharging the liquid absorbed in the roll part away from the large hole into the hollow part, so the function of discharging and removing the liquid absorbed in the roll part Will improve dramatically.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

Example 1
1 is a front view of a roll according to the first embodiment of the present invention, FIG. 2A is a cross-sectional view taken along the line AA of FIG. 1, and FIG. 2B is a perspective view of a roll piece viewed from the front side. 3A is a partial perspective view of the inner cylinder, FIG. 3B is a partial perspective view of the outer cylinder, FIG. 4 is a cross-sectional view of the roll in the first embodiment of the present invention, and FIG. These are the side views which looked at the roll in the 1st example of the present invention from the joint part B side.

  1 and 2 (a), the roll 1 is composed of a pedestal 3, a stopper 8, a plate 9, and a roll portion 2 formed of a plurality of generally annular roll pieces 4. In FIG. The pedestal 3 has a substantially cylindrical shape made of a metal material such as iron, a main body part 5 on which the roll part 2 is formed on the outer peripheral surface, a joint part A6 connected to both ends of the main body part 5 with bolts 10, and The joint portion B7 is formed. For connecting the main body 5 to the joint A6 and the joint B7, a method such as welding can be used in addition to the bolt 10 tightening. In addition, the roll portion 2 is formed by overlapping a plurality of substantially annular roll pieces 4, and is formed on the outer peripheral surface of the main body portion 5 by being sandwiched by fasteners 8 and plates 9 from both sides. It is. A snap ring is used for the fastener 8.

  A balance weight 23 made of a metal material such as iron or lead is attached to the joint A6 connected to the main body 5 by welding for the purpose of maintaining a balance when the roll 1 is rotated, and the joint A6 of the roll 1 is attached. The weight on the side is corrected. As shown in FIG. 4, the weight correction measure for the roll 1 as described above is such that the opening area of the hollow portion 14 in the main body portion 5 is increased from the joint portion A6 side toward the aperture opening portion 22 where the opening area is minimized. It changes from small to large and changes from small to large from the aperture opening 22 toward the joint B7, and the aperture opening 22 is provided downstream from the substantially central portion in the longitudinal direction of the main body 5, that is, on the joint B7. Therefore, since the proportion of the hollow portion 14 is larger and lighter on the joint portion A6 side than the joint portion B7 side, the balance at the time of rotation of the roll 1 can be achieved by performing weight correction on the roll 1. This is a measure that allows the roll 1 to maintain stable rotation over a long period of time. As a method of attaching the balance weight 23 to the joint portion A6, a method such as bolting may be used in addition to the welding. Further, the balance weight 23 may not be attached to the joint portion A6, but a hole may be provided in the joint portion B7 to reduce the weight of the roll 1 on the joint portion B7 side, so that the weight correction for the roll 1 may be performed. On the other hand, a flow passage 11 having an area equal to or larger than the maximum opening area in the hollow portion 14 is formed outside the end portion on the side of the joint portion B7 connected to the main body portion 5 and in the joint portion B7.

  2A and 4, the main body 5 includes a substantially cylindrical outer cylinder 13 and a substantially cylindrical inner cylinder 12 having a hollow portion 14 which are integrated by welding, and the outer cylinder 13 is It is formed so as to cover the inner cylinder 12. As a method of forming the main body portion 5 by integrating the outer cylinder 13 and the inner cylinder 12, a method such as bolting can be used in addition to welding. In addition, small holes 15a, 15b, 15c, 15d, 15e, and 15f are formed in four equally divided locations on the outer wall surface of the outer cylinder 13, and the outer cylindrical equally divided four positions on the outer cylinder 13 have small holes 15a. A large hole 16 having a large opening area is opened. The small holes 15 a, 15 b, 15 c, 15 d, 15 e, 15 f and the large hole 16 communicate with each other via a communication path 19 formed in a branched shape, and communicate with the hollow portion 14 via the large hole 16. The small holes 15 a, 15 b, 15 c, 15 d, 15 e, 15 f and the large hole 16 are provided in six equal parts, eight places, etc. in addition to the four equal parts on the outer periphery of the outer cylinder 13 and the inner cylinder 12. It doesn't matter. The large hole 16 can be formed in the inner cylinder 12 from at least one place. Further, the total number of small holes 15 a, 15 b, 15 c, 15 d, 15 e, 15 f is formed to be greater than the total number of large holes 16.

  In FIG. 2B, the roll piece 4 is formed in a substantially annular shape having a hole 17 at the center and an end 18 on the outer peripheral surface. The roll piece 4 is formed by extracting a base material made of flat artificial leather, nonwoven fabric or the like into a generally annular shape using a Thomson type, a laser cutter or the like.

  In addition to the form of the first embodiment, the roll piece 4 and the outer cylinder 13 are provided with a key groove on the inner peripheral surface of the roll piece 4 and a key into which the key groove is inserted on the outer peripheral surface of the outer cylinder 13. It is possible to adopt a form to which a rotation shift prevention function is added by mounting.

  Next, several methods for manufacturing the base material constituting the roll piece 4 will be described.

  In the first method, a plurality of fibers are accumulated in a flat plate shape to form a cloth-like body, a plurality of the cloth-like bodies are overlapped, and then a special needle is pierced to entangle in three dimensions. To obtain a non-woven fabric. The above manufacturing method is generally called needle punching. The cloth-like body is called a web. The obtained nonwoven fabric is impregnated in a polyurethane solution, and the nonwoven fabric is filled with polyurethane. Next, the non-woven fabric filled with polyurethane is immersed in water, carbon dioxide is injected into the water, and carbonic acid foaming is performed, so that the non-woven fabric and a flat polyurethane made of porous polyurethane having extremely fine bubbles are formed. A double structure is formed, and the double structure is generally called artificial leather. For the fibers forming the nonwoven fabric, polyester fibers, nylon fibers, spandex fibers also called urethane elastic yarns, etc. are used alone or in combination.

  In the second method, a plurality of fibers are accumulated in a flat plate shape to form a web that becomes a cloth-like body, and a nonwoven fabric entangled three-dimensionally by needle punching is obtained. For the obtained nonwoven fabric, a polymer elastic body blended with a crosslinking agent is attached using a method such as spraying, dipping, or impregnation, and the fibers forming the nonwoven fabric are bonded by heating, and the manufacturing method described above The nonwoven fabric obtained by the above is generally called a chemical bond method nonwoven fabric. For the fibers forming the nonwoven fabric, natural fibers such as cotton, rayon and cellulose, and synthetic resin fibers such as polyester, nylon and acrylic are used alone or in combination. In addition, nitrile rubber, acrylic rubber, styrene rubber, urethane rubber, acrylic resin, urethane resin and the like are used alone or in combination for the polymer elastic body. The crosslinking agent is blended for the purpose of forming a bridge structure between the molecules of the polymer elastic body and imparting further excellent elasticity to the polymer elastic body. Trimethylolmelamine, hexamethylol Melamine resins such as melamine, isocyanate resins such as blocked isocyanate, and epoxy resins such as aliphatic epoxy can be used alone or in combination.

  The third method is to melt spin a thermoplastic resin such as polyamide resin, polyester resin, polyethylene resin, polypropylene resin, and to inject a high-pressure water flow of about 100 to 150 kgf to the obtained thermoplastic resin fiber, thereby Entangle. Next, a non-woven fabric obtained by the above production method is formed by attaching a polymer elastic body containing a crosslinking agent to a fiber using a method such as spraying, dipping, or impregnation, and heating to form a non-woven fabric. It is generally called a hydroentangled nonwoven fabric.

  The above-described substrate manufacturing method is a representative example. In addition to the above, for example, a hot-melt synthetic resin is continuously spun to form fibers, and the fibers are drawn on the collection net while stretching the fibers. Spunbond method in which fibers are bonded together to form a nonwoven fabric by pressurizing with a hot roll, and when hot-melt synthetic resin is discharged from the spinneret, it is spun with high-temperature air and heated on a collection net. A melt blown method in which fibers are bonded to form a nonwoven fabric, a synthetic resin is dissolved in a low-boiling solvent such as methylene chloride and chlorofluorocarbon, and the fiber is spun in a heated and pressurized state from the spinning port. The flash spinning method, which volatilizes and accumulates the fibers on a collection net, presses with a hot roll to bond the fibers to form a nonwoven fabric, melts a plurality of synthetic resins with different melting points, and the higher melting point synthetic resin Spinning the fiber Form, may be used molten melting point lower synthetic resin was manufactured by the fiber is adhered fiber bond method or a thermal bond method or the like to form a non-woven fabric as a binder nonwoven. Moreover, fabrics, such as a woven fabric and a knitted fabric, can also be employ | adopted.

  The selection of the base material used for the roll piece 4 is appropriately determined in consideration of the properties of the liquid to be removed, exploited and washed by the roll 1, the use conditions such as the ambient temperature in which the roll 1 is used, the cost, etc. Is.

  Next, the manufacturing method of the roll 1 is demonstrated using FIG.3, FIG4 and FIG.5.

  First, as shown in FIG. 3A, a substantially cylindrical inner cylinder 12 made of a metal material such as iron is prepared. In FIG. 3 (a), the inner cylinder 12 has a branch-like communication passage 19 formed at four positions on the circumference and equally on the outer circumference in the longitudinal direction. A convex outer peripheral portion 20 is formed. Further, large holes 16 are formed on the communication path 19 at four locations on the outer circumference equally divided by the joint portion B side of the inner cylinder 12. As shown in FIG. 4, the inner peripheral surface of the inner cylinder 12 changes from the aperture opening 22 to the joint portion from the aperture opening 22 toward the aperture opening 22 where the aperture area becomes the smallest. A hollow portion 14 whose opening area changes from small to large toward the B7 side is formed, and the inner cylinder 12 is configured so that the large hole 16 is located in the vicinity of the downstream side of the aperture opening portion 22.

  Next, as shown in FIG. 3B, a substantially cylindrical outer cylinder 13 made of a metal material such as iron is prepared. In FIG. 3 (b), the outer cylinder 13 has a plurality of small holes 15a, 15b, 15c, 15d,... The small holes 15a, 15b, 15c, 15d, etc. may be opened to form a staggered shape. Then, the inner wall surface of the outer cylinder 13 is fitted and integrated so as to be in contact with the outer peripheral portion 20 of the inner cylinder 12 configured as described above, and both ends of the integrated inner cylinder 12 and the outer cylinder 13 are welded. The main body part 5 is formed by fixing with. The outer cylinder 13 is positioned so that a plurality of small holes 15a, 15b, 15c, 15d... Opened in the outer cylinder 13 are positioned above the branch-shaped communication path 19 provided in the inner cylinder 12. The inner cylinder 12 is fitted. The holes 17 of the plurality of roll pieces 4 are fitted and inserted into the outer peripheral surface 21 of the outer cylinder 13 to form the roll part 2.

  The small holes 15a, 15b, 15c, 15d, etc. have the smallest opening area of the small hole 15a closest to the joint B7 side. As shown in FIGS. It is formed so as to communicate directly with. The opening area of the other small holes 15b, 15c, 15d... Changes from small to large as the length of the communication passage 19 that communicates from the small holes 15b, 15c, 15d. It is formed as follows. That is, as shown in FIG. 4, the opening areas of the small holes 15a, 15b, 15c, 15d, 15e, and 15f are formed so as to increase from small to large in the order of 15a, 15b, 15c, 15d, 15e, and 15f. Has been.

  Next, as shown in FIG. 4, the joint portion A <b> 6 having the hollow portion 14 and the joint portion B <b> 7 are joined to both ends of the main body portion 5 with a plurality of bolts 10, thereby forming the base 3. The hollow portion 14 is formed so that the fluid penetrates from the joint portion A6 to the main body portion 5 and the joint portion B7, and is configured such that the opening area at the throttle opening portion 22 is minimized. The aperture opening 22 is formed so as to be positioned on the downstream side from the substantially central portion in the longitudinal direction of the main body 5.

  A plurality of balance weights 23 made of a metal material such as iron or lead are attached to the joint A6 by welding.

  4 and 5, the flow passage 11 has an area larger than the maximum opening area in the hollow portion 14 on the outer side of the joint portion B7 side of the body portion 5 constituting the base 3 and on the joint portion B7. Is formed.

  Next, a plurality of roll pieces 4 punched in a substantially annular shape are overlapped, and the hole portion 17 is passed through the base 3. And after compressing only predetermined length with the press machine from the longitudinal direction of the base 3, it clamps with the metal fitting 8 and the plate 9, and is fixed. Next, by leaving it for a predetermined time, the internal stress of the plurality of roll pieces 4 stacked is made uniform, the end 18 is cut and polished, and the outer peripheral surface 21 of the main body 5 of the pedestal 3 is formed. The roll 1 is formed by forming the roll 2. In addition, the roll part 2 is formed from the total number of roll pieces 4 used for the roll 1.

  The hardness of the surface portion of the roll portion 2 is desirably set to about 40 ° to 95 °. When the hardness is less than 40 °, the hardness is too low, and the roll part 2 is worn early when the end face of the surface to be cleaned repeatedly contacts the roll part 2. If the hardness exceeds 95 °, the elasticity of the roll 1 is inferior, and it becomes difficult to efficiently and reliably absorb the liquid adhering to the surface to be cleaned by the roll unit 2. In addition, hardness represents the hardness of a substance and is the hardness measured by the durometer hardness test described in the hardness test method of JISK6253 vulcanized rubber and thermoplastic rubber.

  Next, the operation and action when the roll 1 in Example 1 of the present invention is used for removing oil adhering to the steel plate will be described with reference to FIG.

  The rolls 1 are installed in a pair of upper and lower boxes on a box-shaped steel plate washer (not shown), and are driven to rotate by being applied with a constant pressure such as air pressure by an external device such as a compressor. The steel plate with oil on the surface passes through. At that time, the steel sheet comes into contact with the roll part 2, and the oil content on the surface of the steel sheet is sucked up by the roll part 2 and released into the gap part of the roll part 2 due to the capillary action of the fibers of the roll piece 4 constituting the roll part 2. Is done.

  The pedestal 3 has a piping system (not shown) connected to the end of the joint portion A6 from a compressor installed on the joint portion A6 side, and the inside of the hollow portion 14 formed in the pedestal 3 is moved in the direction of arrow B by the compressor. The fluid is sprayed on. The fluid passes through the hollow portion 14 of the joint portion A6, passes through the hollow portion 14 formed in the main body portion 5, and the throttle opening 22 formed on the joint portion B7 side from the substantially central portion of the main body portion 5, and the main body. It flows out to the outside of the roll 1 through the outside of the end portion of the portion 5 on the joint portion B7 side and the flow passage 11 provided in the joint portion B7. The fluid has the maximum kinetic energy and the minimum pressure energy immediately after passing through the throttle opening 22. That is, the pressure energy is minimized in the vicinity where the large hole 16 is formed. Therefore, the oil component absorbed in the roll part 2 moves from the higher pressure side to the lower side with the generation of the negative pressure due to the change in the cross-sectional area in the hollow part 14, so that the oil part is attracted to the main body part 5 of the base 3. The small hole 15a, 15b, 15c, 15d, 15e, 15f formed in the outer peripheral surface 21 of the part 5 and the communicating path 19 formed in a branched shape are discharged from the large hole 16 to the hollow part 14. The fluid passing through the hollow portion 14 is discharged to the outside of the roll 1 from the end portion of the main body portion 5 on the joint portion B7 side and the flow passage 11 provided in the joint portion B7. The discharged oil is circulated inside the steel plate washer. Therefore, since the oil component absorbed by the roll part 2 is always discharged into the steel plate washing machine outside the roll 1, the roll part 2 is suppressed from being saturated with liquid, and the surface of the steel sheet is kept for a long time. Oil is removed quickly and reliably.

  Further, in the roll 1 of the present invention, in addition to the roll 1, an external device such as an air supply machine that introduces fluid from the joint portion A6 side is required. Therefore, since the fluid can be injected into the hollow portion 14 using the compressor or the like, there is no need to introduce an external device for supplying a new fluid. Therefore, the capital investment cost concerning the roll 1 can be suppressed.

  Further, as described above, the oil component absorbed by the roll unit 2 is discharged together with the fluid from the joint unit B7 side to the outside of the roll 1, so that the oil component is supplied to an external device such as a compressor installed on the joint unit A6 side. Can be supplied stably, and a failure of an external device such as a compressor due to the inflow of oil does not occur. Therefore, the running cost of the roll 1 can be suppressed.

  Since the aperture opening 22 is formed on the downstream side from the substantially central portion in the longitudinal direction of the main body 5, the distance from the joint A6 side to the aperture opening 22 can be set longer, and the kinetic energy of the fluid Therefore, the pressure loss of the fluid can be prevented as much as possible, and a negative pressure can be efficiently generated in the vicinity of the large hole 16. Therefore, oil can be efficiently and reliably discharged from the roll portion 2 to the hollow portion 14.

  The small holes 15 a, 15 b, 15 c, 15 d, 15 e, 15 f are provided at a plurality of locations on the outer wall surface in the longitudinal direction of the main body 5, and communicated in a branched manner so as to communicate with the large holes 16 provided on the inner wall surface. 19 is formed, the oil absorbed by the roll part 2 is formed in small holes 15a, 15b, 15c, 15d, 15e, 15f opened in a plurality of locations on the outer wall surface of the main body part 5 It is discharged to the hollow portion 14 through the communicating passage 19 and the large hole 16 formed in the inner wall surface of the main body portion 5. Therefore, the oil component absorbed by the roll part 2 is discharged from the roll part 2 to the hollow part 14 evenly.

  Since the flow passage 11 having an area equal to or larger than the maximum opening area in the hollow portion 14 is formed outside the end portion of the main body portion 5 on the joint portion B7 side, the outer end portion of the main body portion 5 on the joint portion B7 side is formed. The pressure energy of the fluid in is not less than the pressure energy in the hollow portion 14. Therefore, the fluid and oil released from the outside of the end on the side of the joint B7 to the outside of the roll 1 are not attracted to the hollow portion 14, so that the fluid and oil flow back into the hollow portion 14. Is prevented, and fluid and oil are discharged to the outside of the roll 1 efficiently and reliably.

  The opening areas of the small holes 15a, 15b, 15c, 15d, 15e, and 15f become smaller as the length of the communication passage 19 that communicates from the small holes 15a, 15b, 15c, 15d, 15e, and 15f to the large hole 16 increases. Since the pressure energy in the vicinity of the small holes 15f, 15e, 15d... Away from the large hole 16 changes greatly, the pressure energy in the vicinity of the small holes 15a, 15b, 15c. Higher than energy. However, the opening area of the small holes 15f, 15e, 15d... In the vicinity of the small holes 15f, 15e, 15d. By setting the opening area larger than the small holes 15a, 15b, 15c,..., The amount of oil discharged from the small holes 15f, 15e, 15d,. Since the amount of oil discharged from the small holes 15 a, 15 b, 15 c... Near the hole 16 to the hollow portion 14 can be made substantially the same, the oil absorbed by the roll portion 2 away from the large hole 16. Can be positively and effectively discharged into the hollow portion 14.

  Next, the oil discharge performance of the roll 1 of the present invention was tested in the following manner.

  First, an inner cylinder 12 having a substantially cylindrical hollow portion 14 made of iron having an outer diameter of 45 mm, a maximum inner diameter of 30 mm, and a total length of 190 mm is prepared, and the inner cylinder 12 has a longitudinal direction of 160 mm from the joint A6 side. A diaphragm opening 22 was formed in the vicinity. The diameter of the aperture 22 was set to 10 mm, and the hollow portion 14 was formed in a tapered shape. In addition, a large hole 16 having a diameter of 5 mm is formed at four circumferentially equally divided locations in the vicinity of the downstream side of the aperture opening 22, and a branch-shaped communication path 19 is provided on the outer peripheral surface of the inner cylinder 12. . Next, a plurality of small holes 15a, 15b, 15c having an outer diameter of 50 mm, an inner diameter of 45 mm, a total length of 190 mm, and a diameter of 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm on the outer peripheral surface, An outer cylinder 13 made of iron in which 15d, 15e, and 15f were opened was prepared, and fitted to the inner cylinder 12, and at the same time, both ends were fixed by welding to produce an integrated main body 5. In addition, the small holes 15a, 15b, 15c, 15d, 15e, and 15f were opened at four equal portions on the outer peripheral surface, and a total of 24 holes were opened at 30 mm intervals in the longitudinal direction of the outer cylinder 13. The small holes 15 a, 15 b, 15 c, 15 d, 15 e, 15 f are arranged so as to be positioned above the communication passage 19 provided on the outer peripheral surface of the inner cylinder 12. Next, a joint portion A6 having a hollow portion 14 and a joint portion B7 were connected to both ends of the main body portion 5 by four bolts 10 and integrated to form a base 3 having a total length of 326 mm. In addition, the flow path 11 which has the area more than the largest opening area in the hollow part 14 was provided in the joint part B7 outside the edge part by the side of the joint part B7 of the main-body part 5. As shown in FIG.

Next, a plurality of generally annular roll pieces 4 having an outer diameter of 130 mm and an inner diameter of 50 mm were extracted from the artificial leather having an apparent density of 0.45 g / cm ³ . And the hole part 17 which the several roll piece 4 has is laminated | stacked on the base 3 comprised as mentioned above, the end part 18 of the roll piece 4 is 10 mm cut and polished, and an outer diameter is 120 mm, One roll 1 of the present invention having a roll portion 2 having an inner diameter of 50 mm and a total length of 190 mm was manufactured. In addition, the hardness of the surface part of the roll part 2 was set to 60 degrees.

  The roll 1 configured as described above was immersed in a cleaning oil pleton R-303P manufactured by Sugimura Chemical Industry for 24 hours, so that the roll part 2 was saturated with liquid. About 700 cc of cleaning oil was absorbed into the roll unit 2.

  Next, one substantially cylindrical work roll made of iron having an outer diameter of 120 mm, a main body portion length of 190 mm, and a total length including a joint portion of 326 mm was prepared. And the roll 1 and the work roll were installed in the rotation tester by a pair of upper and lower sides so that the roll 1 of the present invention was the upper part and the work roll was the lower part. Next, the work roll was rotated at 270 rpm, and an air pressure of 8.3 kgf / cm of linear pressure was applied to the roll 1 with a compressor, and the work roll was pressed and rotated. In addition, a piping system was connected to the roll 1 from the compressor to the end of the joint portion A6, and the fluid was jetted in the hollow portion 14 formed in the base 3 in the direction of the joint portion B7 by the compressor. The initial fluid velocity was set at 35 m / sec.

  Under the test conditions shown above, the amount of cleaning oil discharged from the roll part 2 to the outside of the roll 1 was calculated by rotating the roll 1 for 24 hours and measuring the weight of the roll 1 after 24 hours. .

  As a result of the above test, about 700 cc of cleaning oil absorbed in the roll part 2 is generated in the hollow part 14 in the main body part 5 of the roll 1 due to the change in the cross-sectional area, and the small holes 15a, 15b, 15c, 15d, 15e, 15f, the communication passage 19, and the fluid penetrating through the hollow portion 14, and the flow formed in the joint portion B7 end outward of the main body portion 5 and the joint portion B7. It was discharged from the path 11 to the outside of the roll 1. The amount of the cleaning oil released was about 685 cc, and almost the entire amount of the cleaning oil absorbed by the roll part 2 was released to the outside of the roll 1, and the roll 1 of the present invention was very excellent. It had oil discharge performance.

(Example 2)
FIG. 6 is a sectional view of a roll in the second embodiment of the present invention. Detailed description of the same components as those in the first embodiment is omitted.

  In FIG. 6, the roll 31 includes a pedestal 33, a stopper 38, a plate 39, and a roll portion 32 formed by laminating a plurality of substantially annular roll pieces 34. The pedestal 33 has a substantially cylindrical shape made of a metal material such as iron, and has a main body portion 35 formed with a roll portion 32 on the outer peripheral surface, and a joint portion A36 connected to both ends of the main body portion 35 by a plurality of bolts 40. And a joint portion B37.

  A hollow portion 44 is formed in the pedestal 33 so that the fluid penetrates in the direction of arrow C from the joint portion A36 toward the joint portion B37. An aperture opening 52 having a minimum opening area is provided at a substantially central portion in the longitudinal direction of the main body 35, and the opening area of the hollow portion 44 in the main body 35 is limited to the aperture opening 52 from the joint A36 side. It is formed so as to change from large to small toward, and from small to large toward the joint B37 from the aperture opening 52. That is, the hollow portion 44 in the main body portion 35 is formed in a generally drum shape or a taper shape.

  As described above, when the aperture opening 52 is provided at a substantially central portion in the longitudinal direction of the main body portion 35, the hollow portion 44 has a generally drum shape or a tapered shape from both ends of the main body portion 35 toward the substantially central portion. Therefore, the production of the hollow portion 44 in the main body portion 35 is easier than that of the roll 1 of the first embodiment, and the production cost of the roll 31 is reduced. Further, the proportion of the hollow portion 44 from the substantially central portion in the longitudinal direction of the main body portion 35 to the joint portion A36 side and the hollow portion 44 from the substantially central portion in the longitudinal direction of the main body portion 35 to the joint portion B37 side are substantially the same. As in the case of one roll 1, stable rotation of the roll 31 can be maintained without attaching the balance weight 23 to the roll 1.

  The opening area of the joint A36 connected to the main body 35 is substantially the same. On the other hand, a flow passage 41 having an area equal to or larger than the maximum opening area in the hollow portion 44 is formed outside the end portion on the side of the joint portion B37 connected to the main body portion 35 and the joint portion B37.

  The main body portion 35 is formed by covering a substantially cylindrical inner tube 42 with a substantially cylindrical outer tube 43, joining both ends by welding, and integrating them. A diaphragm opening 52 having a minimum opening area is provided on the inner peripheral surface of the substantially central portion in the longitudinal direction of the inner cylinder 42 constituting the main body 35, and in the vicinity of the downstream side of the diaphragm opening 52. A plurality of large holes 46 are opened. A plurality of small holes 45 a, 45 b, 45 c, 45 d are formed on the outer peripheral surface of the outer cylinder 43, and are formed in the roll portion 32 via a branch-like communication path 49 formed on the outer peripheral surface of the inner cylinder 42. The absorbed liquid is configured to be discharged from the large hole 46 to the hollow portion 44.

  Further, the opening areas of the small holes 45a, 45b, 45c, and 45d are set so that the small hole 45a closest to the large hole 46 is the smallest, and becomes larger as the distance from the large hole 46 through the communication path 49 becomes longer. ing. That is, the opening areas of the small holes 45a, 45b, 45c, and 45d are formed so as to increase from small to large in the order of 45a, 45b, 45c, and 45d.

  Next, the oil discharge performance of the roll 31 of the present invention was tested in the following manner.

  First, an inner cylinder 42 having a substantially cylindrical hollow portion 44 made of iron having an outer diameter of 45 mm, a maximum inner diameter of 30 mm, and a total length of 190 mm is prepared. An opening 52 was formed. The diameter of the diaphragm opening 52 was set to 10 mm, and the hollow portion 44 was tapered. In addition, a large hole 46 having a diameter of 5 mm is formed at four circumferentially equally divided locations in the vicinity of the downstream side of the aperture opening 52, and a branch-like communication passage 49 is provided on the outer peripheral surface of the inner cylinder 42. . Next, an iron having an outer diameter of 50 mm, an inner diameter of 45 mm, a total length of 190 mm, and a plurality of small holes 45a, 45b, 45c, and 45d having diameters of 2 mm, 2.5 mm, 3 mm, and 3.5 mm on the outer peripheral surface. An outer cylinder 43 made of the above was prepared and fitted to the inner cylinder 42, and at the same time, both ends were fixed by welding to produce an integrated main body 35. The small holes 45 a, 45 b, 45 c, 45 d were opened at four equal locations on the outer peripheral surface, and a total of 24 locations were opened at 30 mm intervals in the longitudinal direction of the outer cylinder 43. The small holes 45 a, 45 b, 45 c, 45 d are arranged so as to be positioned above the communication passage 49 provided on the outer peripheral surface of the inner cylinder 42. Next, a joint portion A36 having a hollow portion 44 and a joint portion B37 were connected to both ends of the main body portion 35 by four bolts 40, and integrated to form a base 33 having a total length of 326 mm. In addition, the flow path 41 which has an area more than the largest opening area in the hollow part 44 was provided in the outer end part by the side of the joint part B37 of the main-body part 35, and the joint part B37.

Next, a plurality of generally annular roll pieces 34 having an outer diameter of 130 mm and an inner diameter of 50 mm were extracted from the artificial leather having an apparent density of 0.45 g / cm ³ . Then, the holes of the plurality of roll pieces 34 are stacked on the pedestal 33 configured as described above, and the end of the roll piece 34 is cut and polished by 10 mm to have an outer diameter of 120 mm and an inner diameter of 120 mm. One roll 31 of the present invention having a roll portion 32 having a length of 50 mm and a total length of 190 mm was manufactured. In addition, the hardness of the surface part of the roll part 32 was set to 60 degrees.

  The roll 31 configured as described above was immersed in cleaning oil pleton R-303P manufactured by Sugimura Chemical Industry for 24 hours, and the roll part 32 was saturated with liquid. About 700 cc of cleaning oil was absorbed in the roll portion 32.

  Next, one substantially cylindrical work roll made of iron having an outer diameter of 120 mm, a main body portion length of 190 mm, and a total length including a joint portion of 326 mm was prepared. And the roll 31 and the work roll were installed in the rotation tester by the upper and lower pair so that the roll 31 of the present invention was the upper part and the work roll was the lower part. Next, while rotating the work roll at 270 rpm, an air pressure of 8.3 kgf / cm of linear pressure was applied to the roll 31 with a compressor, and the work roll was pressed and rotated. In addition, a piping system was connected to the roll 31 from the compressor to the end of the joint portion A36, and the fluid was jetted in the hollow portion 44 formed in the base 33 toward the joint portion B37 by the compressor. The initial fluid velocity was set at 35 m / sec.

  Under the test conditions shown above, the amount of cleaning oil discharged from the roll portion 32 to the outside of the roll 31 was calculated by rotating the roll 31 for 24 hours and measuring the weight of the roll 31 after 24 hours. .

  As a result of the above test, about 700 cc of cleaning oil absorbed in the roll part 32 is generated in the hollow part 44 of the main body part 35 of the roll 31 due to the change in the cross-sectional area, and the small holes 45a, 45b, 45c, 45d, the communication path 49, and the large hole 46, together with the fluid penetrating the hollow portion 44, rolls from the outer end of the main body 35 on the joint B37 side and the flow path 41 formed in the joint B37. 31 was discharged to the outside. The amount of the cleaning oil released was about 670 cc, and most of the cleaning oil absorbed by the roll unit 32 was released to the outside of the roll 31, and the roll 31 of the present invention has an excellent oil discharge performance. It was what had.

  The roll of the present invention is mainly a ringer roll or wiper that removes, squeezes, or cleans liquid such as moisture, oil or chemical components adhering to the surface to be cleaned, which is made of a steel plate, non-ferrous metal plate, resin plate, or film. Besides rolls, it can be used widely and suitably as rolls that require high durability.

The front view of the roll in 1st Example of this invention (A) AA sectional view of FIG. 1, (b) Perspective view of a roll piece viewed from the front side. (A) Partial perspective view of inner cylinder, (b) Partial perspective view of outer cylinder Sectional drawing of the roll in 1st Example of this invention The side view which looked at the roll in 1st Example of this invention from the joint part B side Sectional drawing of the roll in 2nd Example of this invention

Explanation of symbols

1, 31 Roll 2, 32 Roll part 3, 33 Base 4, 34 Roll piece 5, 35 Main body part 6, 36 Joint part A
7, 37 Joint B
8, 38 Fastener 9, 39 Plate 10, 40 Bolt 11, 41 Flow passage 12, 42 Inner cylinder 13, 43 Outer cylinder 14, 44 Hollow parts 15a, 15b, 15c, 15d, 15e, 15f, 45a, 45b, 45c 45d Small hole 16, 46 Large hole 17 Hole part 18 End part 19, 49 Communication path 20 Outer peripheral part 21 Outer peripheral surface 22, 52 Diaphragm opening 23 Balance weight

Claims (5)

  In a roll for removing, squeezing, and cleaning liquids such as moisture, oil, or chemical components adhering to the surface to be cleaned made of a steel plate, non-ferrous metal plate, resin plate, or film, the roll has a roll portion and a pedestal. The roll part is formed on the outer peripheral surface of the pedestal and has a roll piece, and the pedestal is connected to the main body part on which the roll part is formed on the outer peripheral surface, and to both ends of the main body part. A hollow portion is formed so as to allow fluid to pass through from the joint portion A to the joint portion B, and the hollow portion has a minimum opening area. An opening is formed, and the opening area changes from large to small as it goes from the joint portion A side to the aperture opening, and the opening area decreases from the aperture opening toward the joint portion B. Changed a lot A plurality of small holes are formed in the outer wall surface of the main body, and a plurality of large holes are provided in the inner wall surface of the main body through the communication passage, and the large holes A roll formed near the downstream side of the opening.   The roll having the configuration according to claim 1, wherein the aperture opening is formed on the downstream side of a substantially central portion in the longitudinal direction of the main body.   The roll having the structure according to claim 1 or 2, wherein a plurality of small holes are provided on the outer wall surface in the longitudinal direction of the main body, and the communication path is branched so as to communicate with the large hole provided on the inner wall surface. A roll characterized by being formed.   The roll having the configuration according to claim 1, wherein a flow passage having an area equal to or larger than a maximum opening area in the hollow portion is formed outside the end portion on the joint portion B side of the main body portion. roll.   The roll having the configuration according to claim 1, wherein the opening area of the small hole changes from small to large as the length of the communication path communicating from the small hole to the large hole increases. .

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