JP2010214265A - Roll and cleaning apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roll which sucks a liquid absorbed in a roll portion quickly and uniformly discharges out of the roll, retains the rotation balance of the roll, is capable of removing, squeezing and washing away a liquid uniformly from a surface to be cleaned over a long period and has excellent durability and a cleaning apparatus mounted with the roll. <P>SOLUTION: The roll includes the roll portion and a pedestal, and the pedestal has a body having an opening and joint portions A and B connected to both ends of the body. The joint portions A and B have a hollow part, and the hollow parts communicate with the opening. A hole communicating with the opening and the roll portion are formed in the outer periphery of the body. The roll portion is formed by laminating two or more nearly ring-shaped roll pieces comprising a nonwoven fabric. One or more of the roll pieces have notches in the inner periphery, and the notches are connected together in the longitudinal direction to form two or more fluid introduction grooves. The fluid introduction grooves are located on the roll portion side of the hole. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

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

  For this type of conventional roll, a nonwoven fabric roll, a rubber roll, etc. are generally used. For example, for a nonwoven fabric roll, a polymer elastic body is porous in a void of a nonwoven fabric in which ultrafine fibers are sterically entangled. There is a liquid-absorbing roll (Patent Document 1) in which a large number of disk-shaped materials made of a fibrous sheet filled with a structure are superimposed.

  Since the liquid absorption roll of patent document 1 is not equipped with the external device required in order to attract | suck a liquid, the roll part which consists of a nonwoven fabric layer will be in a liquid absorption saturated state gradually. The liquid removal function in a roll that does not include an external device necessary for sucking the liquid is a roll that is rotating while applying a certain pressure such as air pressure or hydraulic pressure via a compressor or the like. In the compression zone where the cleaning surface comes into contact with the surface to be cleaned and the pressure is compressed by pressure while contacting the surface to be cleaned while the roll is rotating In the open zone where the absorbed liquid is once released to the surface to be cleaned, and then the roll is released from compression by pressure, the liquid on the surface to be cleaned is sucked into the roll by the capillary action of the fibers forming the nonwoven fabric, and the roll And an intake / exhaust function composed of a mechanism that is discharged into the gap of the part. The dam function is a function expressed in a rubber roll or the like, but the suction / exhaust function is a function specific to the nonwoven fabric roll. That is, since the elastic polymer filled in the nonwoven fabric is elastically deformed, 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 over a period of time. 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 nonwoven fabric roll, and the liquid absorbed in the roll portion is vacuum Since the pump discharges to the outside of the nonwoven fabric roll through the through-hole, cavity, and through-hole, the liquid absorption saturation state of the roll portion is suppressed compared to the nonwoven fabric roll that does not have an external device necessary for liquid absorption. The liquid removal function is maintained for a long time. However, the nonwoven fabric roll is configured to suck the liquid only from one end of the shaft body, and the vacuum suction force is likely to vary. That is, the vacuum suction force is strong at one end of the shaft main body close to the vacuum pump, and the vacuum suction force is weak at the other end of the shaft main body away from the vacuum pump. Therefore, it has a problem that it is difficult to uniformly suck the liquid absorbed by the nonwoven fabric sheet.

  The above phenomenon is generally called friction energy loss. The liquid absorbed inside the non-woven fabric part becomes a fluid by the vacuum suction force, and is discharged to the outside of the non-woven fabric roll through the through hole, the hollow part, and the through hole, but when the fluid flows, Energy loss occurs due to friction caused by contact between the inner wall surface and fluid. If the moving distance of the fluid in the cavity is short, the energy loss is small and the vacuum suction force acts strongly. However, if the moving distance of the fluid is long, the energy loss is large and the vacuum suction force is weak.

  Further, one end of the shaft main body close to the vacuum pump is hollow, and the other end of the shaft main body away from the vacuum pump is solid, causing a weight difference at both ends of the shaft main body. For this reason, the rotational balance of the nonwoven fabric roll is poor, and the nonwoven fabric sheet is not easily slidably contacted with the surface to be cleaned.Therefore, liquid cannot be uniformly removed from the surface to be cleaned, and a residue mark is likely to occur on the surface to be cleaned He also had problems.

  The present invention solves the above-described conventional problems. The liquid absorbed in the roll portion is quickly and uniformly sucked and discharged to the outside of the roll. An object of the present invention is to provide a roll having excellent durability capable of uniformly removing, extracting and cleaning a liquid from a surface to be cleaned, and a cleaning apparatus equipped with the roll.

  In order to solve the conventional problem, the roll of the invention of claim 1 removes liquid such as moisture, oil, or chemical components adhering to a steel plate, non-ferrous metal plate, resin plate, or film-like surface to be cleaned. In the roll for squeezing and washing, the roll has a roll part and a pedestal, and the pedestal has a main body part in which an opening is formed, and a joint part A and a joint part B connected to both ends of the main body part. The joint portion A and the joint portion B are formed with a hollow portion, the hollow portion is communicated with the opening, and the joint portion between the main body portion, the joint portion A, and the joint portion B is provided. In the vicinity, a gradually changing portion is formed so that the opening area of the opening is smaller than the opening area of the substantially central portion of the main body, and a hole communicating with the opening is formed on the outer periphery of the main body And the roll part is formed. The roll portion includes a plurality of substantially annular roll pieces made of non-woven fabric and has the roll piece provided with a notch on the inner periphery, the notch being in the longitudinal direction of the main body. A plurality of fluid introduction groove portions are formed by being connected, and the fluid introduction groove portion is located on the roll portion side of the hole portion, and the pedestal is formed in a hollow shape through the opening portion and the hollow portion. For this reason, the joint part A and the joint part B connected to both ends of the main body part can both be connected to a vacuum pump via a pipe. Accordingly, the liquid absorbed in the roll part can be sucked from both ends of the pedestal at the same time, so that the fluid is at substantially the same distance from the substantially central part in the longitudinal direction of the opening toward both ends of the pedestal. Therefore, the generation of frictional energy loss of the fluid is suppressed as much as possible, there is no variation in vacuum suction force, and the liquid absorbed in the roll part is quickly and uniformly sucked and discharged to the outside of the roll. To do. Therefore, the liquid absorption saturation state of the roll part is eliminated, and the service life of the roll can be prolonged.

  Since the joint part A and the joint part B constituting the pedestal both have a hollow part and are hollow, there is no weight difference at both ends of the pedestal, and the rotational balance of the roll is maintained. Therefore, since the roll portion is in sliding contact with the surface to be cleaned uniformly, the liquid can be uniformly removed from the surface to be cleaned, squeezed and cleaned.

  Since the gradually changing portion is formed in the vicinity of the joint portion between the main body portion and the joint portion A and the joint portion B constituting the base, the liquid sucked from the roll portion to the opening portion of the main body portion through the hole portion is Without flowing into the opening, it flows into the hollow portion formed in the joint portion A and the joint portion B along the inclined surface of the gradually changing portion, and is discharged to the outside of the roll. In addition, when the gradual change part which has an inclined surface is not formed in the both ends of a main-body part, reflux generate | occur | produces in the connection location of a main-body part, the joint part A, and the joint part B, and a fluid is an opening part of a main-body part. It becomes difficult to suck the liquid efficiently and reliably. Also, the load on the vacuum pump increases.

  The roll part is formed by laminating a plurality of substantially annular roll pieces made of non-woven fabric and having a roll piece provided with a notch on the inner periphery, and the notch is continuous with the longitudinal direction of the main body. Since the fluid introduction groove portion is formed so as to face the hole portion, the liquid absorbed in the roll portion is uniformly perforated through the fluid introduction groove portion by the vacuum suction force. Can flow into the opening. Therefore, the roll does not have a fluid introduction groove formed in the roll part, and the liquid absorbed in the roll part can be rapidly absorbed compared to the form in which the hole part is formed so as to substantially contact the inner periphery of the roll piece. In addition, it is possible to uniformly suck and discharge to the outside of the roll. In the roll of the present invention, since the fluid introduction groove is formed by connecting the notches formed in the inner periphery of the roll piece, it is not necessary to process the fluid introduction groove in the pedestal, and the cost is low. A pedestal can be produced. Furthermore, the fluid introduction groove portion can be formed by using a notch portion having a different shape only by replacing the roll piece as necessary on the same pedestal.

  The roll of the invention of claim 2 is the roll of claim 1 in particular, and the fluid introduction groove is formed in a range between the vicinity of one end and the vicinity of the other end in the longitudinal direction of the roll. Therefore, no fluid introduction groove is formed in the vicinity of both end portions of the roll portion. Therefore, the fluid generated by the vacuum suction force does not flow out of the roll from both ends of the roll portion, and the liquid absorbed by the roll portion becomes a fluid as a fluid introduction groove, hole, opening. And flows out of the roll reliably in the order of the hollow part. Therefore, there is no pressure loss, and the suction performance of the liquid from the roll part is greatly improved.

  The roll of the invention of claim 3 is the roll of claims 1 to 2, in particular, the roll part has a reinforcing member having a rotating outer diameter smaller than that of the roll piece, and the surface part of the roll part is a core part. Compared to the above, the hardness is low and the flexibility is high, so the elasticity of the roll is improved, the contact area between the roll part and the surface to be cleaned is expanded, and the liquid is efficiently removed from the surface to be cleaned, exploited and cleaned. The On the other hand, since the roll piece and the reinforcing member are laminated, the core part of the roll part is harder than the surface part, and the roll piece is displaced from the main body part during rotation of the roll, and the surface part of the roll part It is possible to prevent unevenness from occurring on the surface. Therefore, the roll does not generate a residue mark on the surface to be cleaned, and the liquid adhering to the surface to be cleaned can be reliably removed, exploited, and washed, and high durability can be maintained.

  The roll of the invention of claim 4 is the roll of claim 3 in particular, in which a notch portion is formed on the inner periphery of the reinforcing member, and the roll portion is continuous even if the reinforcing member is laminated. Therefore, the fluid flow is not blocked by the reinforcing member. Therefore, the fluid can be uniformly sucked from the roll portion to the opening portion.

  The roll of the invention of claim 5 is the roll of claims 1 to 4, in particular, the notch part of the roll piece and the reinforcing member is formed at an equally divided portion of the inner periphery, Since the balance is good, no rotation blur is generated, and stable rotation is maintained, excellent liquid removal performance is exhibited over a long period of time.

  In the roll of the invention of claim 6, in particular, in the rolls of claims 1 to 5, the ratio of the opening area of the hole to the outer periphery of the main body is larger in the substantially central portion than in the vicinity of the end of the main body. In the vicinity of the substantially central portion of the main body portion, more fluid flows along the fluid introduction groove portion and flows out to the opening portion through the hole portion. By the way, the surface to be cleaned made of a steel plate, non-ferrous metal plate, resin plate, or film has various widths in contact with and passes through the roll portion. The cleaning surface passes. Therefore, the vicinity of the substantially central portion of the roll portion is a portion where the liquid is absorbed most. Therefore, by adopting a configuration in which more fluid flows into the opening from the vicinity of the substantially central portion of the main body, the liquid suction performance from the roll is dramatically improved.

  A cleaning device according to a seventh aspect of the present invention includes a roll according to any one of the first to sixth aspects, a driving unit that rotationally drives the roll, and a joint portion A and a joint portion B that communicate with each other via a pipe. Since it has a vacuum pump that is equipped with a roll that can reliably remove, squeeze, and wash the liquid from the surface to be cleaned over a long period of time, excellent liquid removal performance is exhibited. . For this reason, the generation of residue marks in which liquid remains unevenly on the surface to be cleaned is suppressed, leading to improvement in the quality of the surface to be cleaned.

  The roll according to the first aspect of the present invention quickly and uniformly sucks the liquid absorbed in the roll portion and discharges it to the outside of the roll, and the rotation balance of the roll is maintained, and the object to be cleaned is maintained over a long period of time. The liquid can be uniformly removed, exploited and washed from the surface.

  In the roll according to the second aspect of the present invention, the fluid does not flow out from the both ends of the roll part to the outside of the roll, but is reliably sucked from the roll part and flows out of the roll. Performance is greatly improved.

  The roll of the invention of claim 3 can reliably remove, squeeze, and wash the liquid adhering to the surface to be cleaned without generating a residue mark on the surface to be cleaned, and maintains high durability. be able to.

  In the roll according to the fourth aspect of the present invention, the fluid flow is not blocked by the reinforcing member, and the fluid can be uniformly sucked from the roll portion to the opening portion.

  The roll of the invention of claim 5 has a good balance at the time of rotation, does not generate rotation blur, maintains a stable rotation, and can exhibit excellent liquid removal performance over a long period of time.

  In the roll of the invention of claim 6, since more fluid flows into the opening from the vicinity of the substantially central portion of the main body portion, the liquid is sucked in the vicinity of the substantially central portion of the roll portion that absorbs a large amount of liquid. It becomes easy and the suction performance of the liquid from a roll part improves dramatically.

  Since the cleaning apparatus of the invention of claim 7 exhibits excellent liquid removal performance by the mounted roll, the generation of residue marks in which the liquid remains uneven on the surface to be cleaned is suppressed, and the quality of the surface to be cleaned Can be improved.

It is a front view of the roll in the 1st example of the present invention. It is sectional drawing of FIG. It is a front view of a base. (A) The top view of the roll piece laminated | stacked on the outer periphery of the non-formation area | region of a main-body part, (b) The top view of the roll piece laminated | stacked on the outer periphery of the formation area of a main-body part. It is sectional drawing of the roll in the 2nd Example of this invention. (A) Top view of roll piece laminated | stacked on the outer periphery of the non-formation area | region of a main-body part, (b) Top view of the roll piece laminated | stacked on the outer periphery of the formation area of a main-body part, (c) Non-formation area | region of a main-body part It is a top view of the reinforcement member laminated | stacked on the outer periphery of (d), (d) The top view of the reinforcement member laminated | stacked on the outer periphery of the formation area of a main-body part. It is a front view of the base used for the roll in the 3rd example of the present invention. (A) Plan view of roll pieces stacked on the outer periphery of the non-formation region of the main body, (b) Plan view of roll pieces stacked on the outer periphery of the formation region of the main body, (c) Concentrated formation region of the main body The plan view of the roll piece laminated on the outer periphery of the body, (d) the top view of the reinforcing member laminated on the outer periphery of the non-formation region of the main body, (e) the reinforcement member laminated on the outer periphery of the formation region of the main body It is a top view, (f) It is a top view of the reinforcement member laminated | stacked on the outer periphery of the concentration formation area | region of a main-body part. It is explanatory drawing of the washing | cleaning apparatus carrying the roll of this invention.

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

  The roll of Example 1 is demonstrated using FIGS. 1-4.

    1 and 2, the roll 1 includes a pedestal 3, a stopper 5, a plate 6, and a roll portion 2 including a plurality of roll pieces 4 a and 4 b. The pedestal 3 is made of a metal material such as iron, the roll part 2 is formed on the outer periphery, the main body part 7 having the opening 10, and connected to both ends of the main body part 7, and the hollow part 11 is formed from a joint portion A8 having 11 and a joint portion B9. The roll portion 2 is formed by laminating a plurality of roll pieces 4 a and 4 b on the outer periphery of the main body portion 7 constituting the pedestal 3. Is formed. A snap ring is used for the fastener 5.

2 and 3, the main body portion 7 constituting the pedestal 3 has a plurality of circular hole portions 13 formed on the outer periphery so as to be substantially parallel to the longitudinal direction. The hole 13 is provided at six locations on the outer periphery of the main body 7 and is formed in the formation region L ₁ excluding the non-formation region L ₂ in the vicinity of both ends of the entire length in the longitudinal direction of the main body 7. It is established within the range. Further, the hole 13 communicates with the opening 10 of the main body 7. The shape of the hole 13 may be a polygonal shape such as an approximate triangle or an approximate quadrangle, or an irregular cross-sectional shape such as a star shape or a cross shape, in addition to a circle. The joint portion A8 and the joint portion B9 are provided with a hollow portion 11, and at one end portion, a screw portion 12 to which a rotary joint (not shown) is connected is formed, and the other Is connected to the end of the main body 7 via a joint 16 by welding. Accordingly, the opening 10 of the main body 7, the hollow portion 11 of the joint A8 and the joint B9 inevitably communicate with each other. The stopper 5 is fitted and inserted into the recess 15 formed in the joint A8 and the joint B9.

  Further, a gradually changing portion 71 having an inclined surface is formed in the vicinity of the joint portion 16 of the main body portion 7, the joint portion A8, and the joint portion B9. Therefore, in the vicinity of the joint portion 16 of the main body portion 7 and the joint portion A8 and the joint portion B9, the opening area of the opening portion 10 is smaller than the opening area of the substantially central portion of the main body portion 7.

In FIG. 4A, the roll piece 4a is composed of a substantially annular non-woven fabric 17 having a hole 18 in the center and a side edge 19 on the outer periphery. The nonwoven fabric 17 has a plurality of fibers (not shown). As shown in FIGS. 2 and 3, the roll piece 4 a is in the vicinity of both end portions in the longitudinal direction of the main body portion 7 constituting the pedestal 3, that is, the non-forming region where the hole portion 13 is not opened on the outer periphery of the main body portion 7. It is laminated in the range of L _2.

In FIG. 4B, the roll piece 4b is composed of a substantially annular non-woven fabric 17 having a hole 18 in the center and a side edge 19 on the outer periphery. The nonwoven fabric 17 has a plurality of fibers (not shown). Further, the roll piece 4b is formed with roughly U-shaped cutout portions 20 at six equally spaced inner circumferences. Roll pieces 4b is as shown in FIG. 2, and 3, forming regions hole 13 is opened on the outer periphery except for the non-formation region L ₂ in the vicinity of both ends across the longitudinal direction of the main body portion 7 that constitute the base 3 It is laminated in the range of L _1. Then, the notch portion 20 extends over the formation region L ₁ of the main body portion 7, thereby forming a plurality of fluid introduction groove portions 14 as shown in FIG. 2 and introducing the fluid into the roll portion 2 side of the hole portion 13. It is set so that the groove part 14 is located. That is, the hole 13 and the fluid introduction groove 14 are formed to face each other. The number of notches 20 formed on the inner periphery of the roll piece 4 b is changed according to the number of holes 13 formed on the outer periphery of the main body 7 on the circumference. Furthermore, the shape of the notch 20 may be an approximate V shape, an approximate concave shape, or the like other than the approximate U shape.

In addition, the roll part 2 is formed from the roll pieces 4a and 4b of the total number used for the roll 1. FIG. Roll pieces 4b located to the roll pieces 4a and forming region L ₁ is located in the non-formation region L ₂ is a non-woven fabric 17 of the same material, the dimensions of the outer diameter, and inner diameter is substantially the same. Although not shown in particular, in order to prevent the positional deviation of the roll pieces 4a and 4b with respect to the pedestal 3, a concave groove is formed on the inner periphery of the roll pieces 4a and 4b, and the main body portion 7 constituting the pedestal 3 is formed. The roll pieces 4 a and 4 b may be stacked on the outer periphery of the main body portion 7 by attaching a convex key to the outer periphery in the longitudinal direction and fitting and inserting the concave groove portion into the convex key.

  Next, a manufacturing method of the roll 1 will be described.

  First, a substantially cylindrical main body 7 having a hole 13 on the outer periphery and having an opening 10 is prepared. Next, the hollow joint portion A8 and the joint portion B9 in which the hollow portion 11 and the gradually changing portion 71 having the inclined surface are formed are inserted into both ends of the main body portion 7, and are press-fitted or shrinked. At the same time, the main body portion 7, the joint portion A8, and the joint portion B9 are integrated through the joint portion 16 by welding to form the base 3. As long as the strength of the pedestal 3 is maintained, the connecting method of the main body 7, the joint A8, and the joint B9 may be a method such as screwing or bolting.

Next, a flat non-woven fabric 17 having a plurality of fibers is prepared, and the non-woven fabric 17 is made of a Thomson type or a laser cutter or the like, and a generally annular roll piece 4a having a hole 18 and a side edge 19 is provided. Then, it is punched into a generally annular roll piece 4b having notches 20 at six portions of the hole 18, the side edge 19, and the inner periphery. Next, a plurality of roll pieces 4 a are overlapped so that the hole 18 penetrates the base 3 and is laminated in the vicinity of the range of one non-formation region L ₂ where the hole 13 is not formed on the outer periphery of the main body 7. Next, a plurality of roll pieces 4 b are overlapped so that the hole 18 penetrates the base 3 and is stacked in the vicinity of the range of the formation region L ₁ in which the hole 13 is formed on the outer periphery of the main body 7. At that time, the cutout portions 20 are stacked so as to be continuous in the longitudinal direction, and the fluid introduction groove portion 14 formed by the continuous notch portions 20 and the hole portion 13 are opposed to each other. Then, by superposing a plurality of rolls pieces 4a, is passed through a hole 18 against the base 3 are laminated in the vicinity of the outer circumference hole portion 13 of the other that has not been established in the non-formation region L ₂ range of the main body portion 7 . The roll pieces 4a in the non-forming region L ₂ range, is compressed by a predetermined length by a press machine in the range of formation region L ₁ in the longitudinal direction of the seat 3 so that the roll pieces 4b are located, the stop member 5 and, A plurality of roll pieces 4 a and 4 b are sandwiched and fixed by the plate 6. Next, by leaving it for a predetermined time, the internal stress of the plurality of roll pieces 4 a and 4 b overlapped is made uniform, the side edge 19 is cut and polished, and the outer periphery of the main body 7 constituting the base 3 A roll 1 is formed by forming a roll 2.

  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. On the other hand, if the hardness exceeds 95 °, the hardness is too high, the elasticity of the roll 1 is inferior, and it becomes difficult to effectively exhibit the dam function and the suction / discharge function. 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.

  The diameter of the hole 13 and the width and depth of the fluid introduction groove 14 are not particularly limited. For example, the diameter of the hole 13 is about 1 to 8 mm, and the width of the fluid introduction groove 14 is 2 to 30 mm. The depth and depth are desirably set to about 0.1 to 20 mm, and the width of the fluid introduction groove 14 needs to be set larger than the diameter of the hole 13. When the diameter of the hole 13 is less than 1 mm, the diameter is too small to efficiently suck the fluid from the roll part 2, and when it exceeds 8 mm, the diameter is too large to suck the fluid per hole. Becomes weaker. Further, when the width of the fluid introduction groove 14 is less than 2 mm, the width is too narrow to allow the fluid to flow efficiently, and when it exceeds 30 mm, the width is too wide between the inner periphery of the roll piece 4 b and the main body 7. The gap portion is increased, and the roll piece 4b is likely to be displaced as the roll 1 rotates. If the depth of the fluid introduction groove 14 is less than 0.1 mm, the fluid cannot flow efficiently because it is too shallow. If it exceeds 20 mm, the thickness of the roll piece 4 b is too thin and the elasticity of the roll 1 is reduced. It will be inferior.

  Next, several methods for manufacturing the nonwoven fabric 17 constituting the roll pieces 4a and 4b 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. A non-woven fabric 17 is obtained. The above manufacturing method is generally called needle punching. The cloth-like body is called a web. The obtained nonwoven fabric 17 is impregnated in a polyurethane solution, and the nonwoven fabric 17 is filled with polyurethane. Next, the nonwoven fabric 17 filled with polyurethane is immersed in water, carbon dioxide is injected into the water, and carbonic acid foaming is performed. Form a double structure. As the fibers forming the nonwoven fabric 17, 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 17 entangled three-dimensionally by needle punching is obtained. The obtained non-woven fabric 17 is bonded with a polymer elastic body containing a crosslinking agent using a method such as spraying, dipping, or impregnation, and is heated to bond the fibers forming the non-woven fabric 17. The nonwoven fabric 17 obtained by this manufacturing method is generally called a chemical bond method nonwoven fabric. In addition, as a fiber which forms the nonwoven fabric 17, natural fibers, such as cotton, rayon, and cellulose, and synthetic fibers, such as polyester, nylon, and acryl, 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 involves melt spinning a synthetic resin such as a polyamide resin, a polyester resin, a polyethylene resin, or a polypropylene resin and injecting a high-pressure water stream of about 100 to 150 kgf to the obtained synthetic fiber to entangle the fibers. Let Next, the non-woven fabric 17 obtained by the above-described production method is formed by adhering a polymer elastic body containing a cross-linking agent to the fibers using a method such as spraying, dipping, or impregnation, and heating to form the non-woven fabric 17. Is generally referred to as hydroentangled nonwoven fabric.

  The manufacturing method of the nonwoven fabric 17 shown above is a representative example. In addition to the above, for example, a hot melted synthetic resin is continuously spun to form fibers, and the fibers are stretched on the collection net. Spunbond method in which fibers are combined to form a nonwoven fabric 17 by pressurizing with a hot roll, and when hot melted 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 the formed fibers are bonded to form a nonwoven fabric 17; 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 at the same time as the low boiling point. The flash spinning method in which the solvent is volatilized, the fibers are accumulated on a collection net, and pressed with a hot roll to bond the fibers to form the nonwoven fabric 17. The one having a higher melting point by melting a plurality of synthetic resins having different melting points Synthetic tree A nonwoven fabric 17 manufactured by a fiber bond method, a thermal bond method, or the like, in which a nonwoven fabric 17 is formed by bonding fibers using a melted synthetic resin having a lower melting point as a binder, is used. I do not care. In addition, when the nonwoven fabric 17 is formed on the roll 1, it is strong against repeated contact of the surface to be cleaned and the fibers are not easily frayed. Compared to the case where other fabrics such as a woven fabric and a knitted fabric are used for the roll 1, This leads to improvement in durability of the roll 1.

  About selection of the nonwoven fabric 17 used for the roll pieces 4a and 4b, it considers use conditions, such as the atmospheric temperature in which the roll 1 is used, the property of the liquid used as removal object, cost, etc., and is determined suitably. is there.

  The operation and action of the roll 1 configured as described above are as follows.

  The roll 1 has a roll part 2 and a pedestal 3, and the pedestal 3 has a main body part 7 in which an opening 10 is formed, and a joint part A 8 and a joint part B 9 connected to both ends of the main body part 7. A8 and the joint part B9 are formed with hollow parts, the hollow part 11 is communicated with the opening part 10, and the vicinity of the joint part 16 of the main body part 7, the joint part A8 and the joint part B9 is the opening area of the opening part 10. However, a gradually changing portion 71 having an inclined surface is formed so as to be smaller than the opening area of the substantially central portion of the main body portion 7, and a hole portion 13 communicating with the opening portion 10 is formed on the outer periphery of the main body portion 7. The roll part 2 is formed, and the roll part 2 has a roll piece 4b in which a plurality of substantially annular roll pieces 4a and 4b made of nonwoven fabric 17 are laminated and a notch 20 is provided on the inner periphery. The notch 20 is continuous with the longitudinal direction of the main body 7. A plurality of fluid introduction groove portions 14 are formed by the above, and the fluid introduction groove portion 14 is located on the roll portion 2 side of the hole portion 13. Therefore, when the surface to be cleaned comes into contact with the roll portion 2, the dam function of the roll 1 And the liquid is removed by the suction and discharge function. The roll 1 discharges liquid to the inside of the roll part 2 and discharges it to the outside by the capillary action of the fibers of the nonwoven fabric 17 constituting the roll part 2 by the suction / discharge function. In the roll 1, the hollow portion 11 is formed in the joint portion A <b> 8 and the joint portion B <b> 9 constituting the base 3, and the opening portion 10 is formed in the main body portion 7, and the hollow portion 11 and the opening portion 10 communicate with each other. . A rotary joint (not shown) is connected to the screw part 12 of the joint part A8 and the joint part B9, a vacuum pump (not shown) is connected via a pipe (not shown), and the vacuum pump is operated to obtain a vacuum suction force. When a negative pressure is applied, a negative pressure is applied to the roll part 2, and the liquid absorbed by the roll part 2 becomes a fluid, and the fluid is a fluid introduction groove part 14 and a hole part 13 as indicated by a two-dot chain line arrow in FIG. 2. Through the hollow portion 11 formed in the joint portion A8 and the joint portion B9 and sucked to the outside of the roll 1 and discharged. Therefore, since the liquid absorption saturation state of the roll part 2 is eliminated and the suction / exhaust function is maintained, the roll 1 can reliably remove, extract and wash the liquid adhering to the surface to be cleaned over a long period of time. . The timing for operating the vacuum pump may be either when the roll 1 is operating or when it is not operating.

  In the roll 1 of the present invention, since the pedestal 3 is formed through the opening 10 and the hollow portion 11 so as to penetrate in a hollow shape, the joint portion A8 connected to both ends of the main body portion 7 and the joint portion Both B9 can be connected to a vacuum pump via a pipe. Therefore, since the liquid absorbed by the roll part 2 can be simultaneously sucked from both ends of the pedestal 3, the fluid is substantially directed from the substantially central part in the longitudinal direction of the opening 10 toward both ends of the pedestal 3. Since they move at the same distance, the generation of frictional energy loss of the fluid is suppressed as much as possible, the vacuum suction force does not vary, and the liquid absorbed by the roll unit 2 is sucked quickly and uniformly. It can be discharged outside the roll 1.

  The joint part A8 and the joint part B9 constituting the pedestal 3 both have the hollow part 11 and are hollow, so that there is no weight difference at both ends of the pedestal 3, and the rotation balance of the roll 1 is maintained. Retained. Therefore, since the roll part 2 is in sliding contact with the surface to be cleaned uniformly, the liquid can be uniformly removed, exploited and cleaned from the surface to be cleaned.

  Since the gradually changing portion 71 is formed in the vicinity of the joint portion 16 of the body portion 7 and the joint portion A8 and the joint portion B9 constituting the base 3, the roll portion 2 and the body portion 7 are connected to each other through the hole portion 13. The liquid sucked into the opening portion 10 flows into the hollow portion 11 formed in the joint portion A8 and the joint portion B9 along the inclined surface of the gradual change portion 71 without staying in the opening portion 10, and rolls 1 is discharged to the outside.

Fluid introduction groove 14 includes a non-forming region L ₂ in the vicinity of one end in the longitudinal direction of the roll 2, at formation region L ₁ in the range of the non-formation region L ₂ in the vicinity of the other end Since it is formed, the fluid introduction groove portion 14 is not formed in the vicinity of both end portions of the roll portion 2. Therefore, the fluid generated by the vacuum suction force does not flow out of the roll 1 from both ends of the roll portion 2, and the liquid absorbed by the roll portion 2 becomes a fluid and becomes the fluid introduction groove portion 14, hole The part 13, the opening 10, and the hollow part 11 surely flow out of the roll 1 in this order. Therefore, there is no pressure loss, and the suction performance of the liquid from the roll unit 2 is greatly improved.

  The roll of Example 2 is demonstrated using FIG.5 and FIG.6. Detailed description of the same members as those in the first embodiment will be omitted.

  In FIG. 5, the roll 21 includes a pedestal 23, a fastener 25, a plate 26, and a roll portion 22 including a plurality of roll pieces 24 a and 24 b and reinforcing members 39 a and 39 b. The pedestal 23 is made of a metal material such as iron, and a main body 27 having a roll portion 22 formed on the outer periphery thereof has a substantially cylindrical shape having an opening 30, and joint portions A 28 connected to both ends of the main body 27. The joint portion B29 has a hollow shape having a hollow portion 31, and a threaded portion 32 to which a rotary joint is connected is formed at one end of each. The roll part 22 is formed by laminating a plurality of roll pieces 24a and 24b and reinforcing members 39a and 39b on the outer periphery of the main body part 27 constituting the pedestal 23, and is formed by overlapping the fasteners 25 from both sides. It is formed by being sandwiched between plates 26. A snap ring is used for the fastener 25.

  The main body 27 constituting the pedestal 23 has a plurality of circular holes 33 on the outer periphery so as to be substantially parallel to the longitudinal direction. The hole 33 is provided at six locations on the outer periphery of the main body 27 and is within the range of the formation area excluding the non-formation area in the vicinity of both ends of the entire length of the main body 27 in the longitudinal direction. Is formed. Further, the hole 33 communicates with the opening 30 of the main body 27. The joint portion A28 and the joint portion B29 are provided with a hollow portion 31, and at one end portion thereof, a screw portion 32 to which a rotary joint (not shown) is connected is formed. Are connected to both end portions of the main body portion 27 via joint portions 36 by welding. Accordingly, the opening 30 included in the main body 27 inevitably communicates with the hollow portion 31 included in the joint portion A28 and the joint portion B29.

  Further, a gradually changing portion 81 having an inclined surface is formed in the vicinity of the joint portion 36 of the main body portion 27, the joint portion A28, and the joint portion B29. Therefore, the opening area of the opening 30 is smaller than the opening area of the substantially central portion of the main body 27 in the vicinity of the joint portion 36 between the main body 27, the joint A 28, and the joint B 29.

  In FIG. 6A, the roll piece 24a is composed of a substantially annular non-woven fabric 37 having a hole 38 formed in the center. The nonwoven fabric 37 has a plurality of fibers. As shown in FIG. 5, the roll piece 24 a is laminated in the vicinity of both end portions in the longitudinal direction of the main body 27 constituting the pedestal 23, that is, in the range of the non-forming region where the hole 33 is not opened on the outer periphery of the main body 27. Is done.

  In FIG. 6B, the roll piece 24b is made of a substantially annular nonwoven fabric 37 having a hole 38 formed in the center. The nonwoven fabric 37 has a plurality of fibers. Further, the roll piece 24b is formed with roughly U-shaped cutout portions 40 at six equally spaced portions on the inner periphery. As shown in FIG. 5, the roll piece 24 b is laminated within the range of the formation region where the hole portion 33 except the non-formation region in the vicinity of both end portions in the longitudinal direction of the main body portion 27 constituting the pedestal 23 is formed on the outer periphery. The

  In FIG.6 (c), the reinforcement member 39a is formed in the substantially annular | circular shape which has the hole 38 in the center part. As shown in FIG. 5, the reinforcing member 39 a is in the vicinity of both end portions in the longitudinal direction of the main body 27 constituting the pedestal 23, that is, in the range of the non-forming region where the hole 33 is not opened on the outer periphery of the main body 27. It is laminated together with the roll piece 24a. The outer diameter of the reinforcing member 39a is smaller than the outer diameter of the roll piece 24a, and the inner diameter is substantially the same as the inner diameter of the roll piece 24a.

  In FIG.6 (d), the reinforcement member 39b is formed in the substantially annular | circular shape which has the hole 38 in the center part. Further, the reinforcing member 39b is formed with approximately U-shaped cutout portions 40 at six equally divided portions on the inner periphery. As shown in FIG. 5, the reinforcing member 39 b has a roll 33 within the range of the formation region where the hole portion 33 excluding the non-formation region in the vicinity of both ends in the longitudinal direction of the main body 27 constituting the pedestal 23 is formed on the outer periphery. Laminated together with the piece 24b. The outer diameter of the reinforcing member 39b is smaller than the outer diameter of the roll piece 24b, and the inner diameter is substantially the same as the inner diameter of the roll piece 24b.

  The notches 40 of the roll piece 24b and the reinforcing member 39b are connected over the region where the main body 27 is formed, whereby a plurality of fluid introduction grooves 34 are formed as shown in FIG. The fluid introduction groove 34 is set on the 22 side. That is, the hole 33 and the fluid introduction groove 34 are formed to face each other.

  The reinforcing members 39a and 39b have a smaller rotation outer diameter than the roll pieces 24a and 24b, and the material, shape, and the like are not particularly limited as long as the reinforcing members 39a and 39b do not deteriorate due to swelling or the like by the liquid absorbed by the roll portion 22. As the material of the reinforcing members 39a and 39b, for example, a flat nonwoven fabric 37, a fabric such as a woven fabric or a knitted fabric, a synthetic resin plate, a metal plate, a film-like resin composition, a synthetic resin foam, or the like is used. Preferably, the nonwoven fabric 37 which has the space | gap part which a liquid permeate | transmits easily is used. The porosity of the nonwoven fabric 37 is preferably 5% or more and 50% or less in consideration of strength and the like. The reinforcing member 39a and the reinforcing member 39b may be made of the same material or different materials. Further, the roll pieces 24a, 24b and the reinforcing members 39a, 39b may be made of the same material or different materials. When the roll pieces 24a, 24b and the reinforcing members 39a, 39b are made of different materials, the cost of the roll 21 can be suppressed if the reinforcing members 39a, 39b are made of a material that is less expensive than the roll pieces 24a, 24b. .

  The number of inserted reinforcing members 39a with respect to the roll piece 24a and the number of inserted reinforcing members 39b with respect to the roll piece 24b may be appropriately determined in consideration of the hardness, cost, etc. of the surface portion and core portion of the roll portion 22. For example, one reinforcing member 39a, 39b is inserted into two to ten roll pieces 24a, 24b.

  The operation and action of the roll 21 configured as described above are as follows.

  The roll 21 has a hollow shape in which both the joint portion A28 and the joint portion B29 connected to the main body portion 27 have a hollow portion 31, a rotary joint is inserted into the screw portion 32, and a vacuum pump is connected via a pipe, When the vacuum pump is operated to apply a vacuum suction force, a negative pressure is applied to the roll unit 22, and the liquid absorbed by the roll unit 22 becomes a fluid, and the fluid is as indicated by a two-dot chain line arrow in FIG. The fluid flows into the opening 30 through the fluid introduction groove 34 and the hole 33, and is sucked and discharged from the hollow portion 31 formed in the joint portion A28 and the joint portion B29 to the outside of the roll 21. Therefore, since the liquid absorption saturation state of the roll part 22 is eliminated and the function of sucking and discharging is maintained, the roll 21 can reliably remove, extract and wash the liquid adhering to the surface to be cleaned over a long period of time. .

  Since the roll part 22 has reinforcing members 39a and 39b having a smaller rotation outer diameter than the roll pieces 24a and 24b, the surface part of the roll part 22 has lower hardness and higher flexibility than the core part. The elasticity of the roll 21 is improved, the contact area between the roll part 22 and the surface to be cleaned is expanded, and the liquid is efficiently removed from the surface to be cleaned, exploited and cleaned. On the other hand, the roll part 22 has a roll core 24a, 24b and reinforcing members 39a, 39b laminated together, so that the core part of the roll part 22 is harder than the surface part. 27 is prevented from being displaced, and the surface portion of the roll portion 22 is prevented from being uneven. Therefore, the roll 21 does not generate a residue mark on the surface to be cleaned, and can reliably remove, squeeze and clean the liquid adhering to the surface to be cleaned, and can maintain high durability. .

  Since the notch 40 is formed on the inner periphery of the reinforcing member 39b, the roll portion 22 is provided with the continuously formed fluid introduction groove 34 even if the reinforcing member 39b is laminated. The fluid flow is not blocked by the reinforcing member 39b. Therefore, the fluid can be uniformly sucked from the roll portion 22 to the opening portion 30.

  Since the notches 40 of the roll piece 24b and the reinforcing member 39b are formed at six equally spaced locations on the inner periphery, the roll 21 has a good balance during rotation and does not generate rotational shake and is stable. Therefore, excellent liquid removal performance is exhibited over a long period of time.

  The roll of Example 3 is demonstrated using FIG.7 and FIG.8. Detailed description of the same members as those in the first and second embodiments will be omitted.

In FIG. 7, a pedestal 43 includes a joint portion 56 formed by welding a hollow joint portion A48 and a joint portion B49 at both ends of a substantially cylindrical main body portion 47 having a plurality of circular hole portions 53 formed on the outer periphery. Are formed in a connected manner. The main body portion 47 is provided with a non-forming region L ₄ in the vicinity of the end portion where the hole portion 53 is not provided on the outer periphery, and the hole portions 53 are provided at six locations on the outer periphery of the main body portion 47. The formation region L ₃ formed substantially parallel to the longitudinal direction, and the hole portion 53 are provided at twelve locations on the outer periphery of the main body portion 47, and the concentrated formation region formed substantially parallel to the longitudinal direction of the main body portion 47. L consisting of _5. The concentrated formation region L ₅ is formed in the vicinity of the substantially central portion of the main body portion 47, and the formation region L ₃ is a non-formation region L ₄ in the vicinity of both end portions of the entire length in the longitudinal direction of the main body portion 47, and It is formed by the range excluding the centralized formation region L ₅ in the vicinity of the substantially central portion. Thus, the concentrated form region L _5, since they are formed holes 53 in the outer circumference equal 12 places of the main body portion 47, the ratio of the opening area of the hole 53, the outer circumference equal six of the main body portion 47 It becomes larger than the forming area L ₃ where the hole 53 is formed. The stopper 25 is fitted and inserted into the recess 55 formed in the joint A48 and the joint B49.

In FIG. 8A, the roll piece 44a is made of a substantially annular nonwoven fabric 57 having a hole 58 formed in the center. The nonwoven fabric 57 has a plurality of fibers. The roll piece 44 a is laminated in the vicinity of both end portions in the longitudinal direction of the main body portion 47 constituting the pedestal 43, that is, in the range of the non-formation region L ₄ where the hole portion 53 is not opened on the outer periphery of the main body portion 47.

In FIG. 8B, the roll piece 44b is composed of a substantially annular nonwoven fabric 57 having a hole 58 formed in the center. The nonwoven fabric 57 has a plurality of fibers. Further, the roll piece 44b is formed with roughly U-shaped cutout portions 50 at six equally spaced portions on the inner periphery. Roll pieces 44b has a non-formation region L ₄ in the vicinity of both ends across the longitudinal direction of the main body portion 47 which constitutes the seat 43, the hole portion 53 excluding the centralized formation region L ₅ in the vicinity of the substantially central portion outer peripheral equally are stacked within the has been formed region L ₃ opened in six.

In FIG.8 (c), the roll piece 44c consists of the substantially annular nonwoven fabric 57 by which the hole part 58 was formed in the center part. The nonwoven fabric 57 has a plurality of fibers. Further, the roll piece 44c has a substantially U-shaped cutout portion 50 formed at twelve equally divided portions on the inner periphery. Roll pieces 44c are stacked within the intensive formation region L ₅ in the vicinity of the substantially central portion in the longitudinal direction of the hole portion 53 on the outer circumference equal 12 places of the main body portion 47 which constitutes the seat 43 is opened.

In FIG. 8D, the reinforcing member 59a is formed in a substantially annular shape having a hole 58 at the center. Reinforcing member 59a is near the end portions across the longitudinal direction of the main body portion 47 which constitutes the seat 43, i.e. in the range hole 53 is formed area L ₄ which are not open to the outer periphery of the main body portion 47, the roll pieces 44a Laminated together. The outer diameter of the reinforcing member 59a is smaller than the outer diameter of the roll piece 44a, and the inner diameter is substantially the same as the inner diameter of the roll piece 44a.

In FIG.8 (e), the reinforcement member 59b is formed in the substantially annular | circular shape which has the hole 58 in the center part. Further, the reinforcing member 59b is formed with approximately U-shaped cutout portions 50 at six equally spaced inner circumferences. Reinforcing member 59b has a non-formation region L ₄ in the vicinity of both ends across the longitudinal direction of the main body portion 47 which constitutes the seat 43, the hole portion 53 excluding the centralized formation region L ₅ in the vicinity of the substantially central portion outer peripheral equally within the has been formed region L ₃ opened in six locations, is laminated with a roll piece 44b. The outer diameter of the reinforcing member 59b is smaller than the outer diameter of the roll piece 44b, and the inner diameter is substantially the same as the inner diameter of the roll piece 44b.

In FIG. 8F, the reinforcing member 59c is formed in a substantially annular shape having a hole 58 in the center. Further, the reinforcing member 59c is formed with a substantially U-shaped cutout portion 50 at 12 positions on the inner circumference. Reinforcing member 59c is in the range of concentration forming region L ₅ in the vicinity of the substantially central portion in the longitudinal direction of the hole portion 53 on the outer circumference equal 12 places of the main body portion 47 which constitutes the seat 43 is opened, the roll pieces 44c Laminated. The outer diameter of the reinforcing member 59c is smaller than the outer diameter of the roll piece 44c, and the inner diameter is substantially the same as the inner diameter of the roll piece 44c.

Contiguous notch 50 having a roll piece 44b of the reinforcing member 59b is over the forming area _{L 3} of the main body portion 47, concentrated forming area _{L 5} of the cutout portion 50 is main body portion 47 having a roll piece 44c of the reinforcing member 59c As a result, the plurality of fluid introduction groove portions 34 are formed, and the fluid introduction groove portion 34 is set to be positioned on the roll portion 22 side of the hole portion 53. That is, the hole 53 and the fluid introduction groove 34 are formed to face each other.

  Using the pedestal 43 configured as described above, the operation and action of the roll 21 in which the roll portion 22 is formed by laminating the roll pieces 44a, 44b, 44c and the reinforcing members 59a, 59b, 59c on the outer periphery of the main body portion 47. Is as follows.

In the roll 21, the ratio of the opening area of the hole 53 to the outer periphery of the main body 47 is larger in the concentrated formation region L ₅ near the center than in the formation region L ₃ near the end of the main body 47. Since it is formed larger, more fluid flows along the fluid introduction groove 34 in the vicinity of the substantially central portion of the main body 47 and flows out to the opening 30 through the hole 53. By the way, the surface to be cleaned made of a steel plate, a non-ferrous metal plate, a resin plate, or a film is in contact with and passes through the roll portion 22 with various widths. The surface to be cleaned passes. Therefore, the vicinity of the substantially central portion of the roll portion 22 is a portion where the liquid is absorbed most. Therefore, by adopting a form in which more fluid flows into the opening 30 from the vicinity of the substantially central portion of the main body 47, the liquid suction performance from the roll portion 22 is dramatically improved.

  The cleaning apparatus of Example 4 will be described with reference to FIG. In addition, in order to make description of a structure easy, suppose that illustration and description of the bearing part of each component and a support component are abbreviate | omitted. Further, the roll is used for removing oil adhering to the steel plate.

  The rolls 61a and 61b are installed in a pair on the cleaning device 60, and a constant pressure is applied to both ends of the base 63 of the roll 61a located at the upper part, that is, the joint part A68 and the joint part B69. A piece-shaped steel plate 70, which is rotationally driven in the direction of the arrow and has oil (not shown) attached on both sides, is fed in the direction of the white arrow between the upper roll 61a and the lower roll 61b. Further, a rotary joint 66 is inserted into the end portions of the joint portion A68 and the joint portion B69, and is connected to a vacuum pump 67 through a pipe 65. The upper roll 61 a removes oil from the surface of the steel plate 70, and the lower roll 61 b removes oil from the back surface of the steel plate 70. The steel plate 70 to which the oil component has adhered comes into contact with the roll unit 62, and the oil component is sucked up by the roll unit 62 and discharged into the gap of the roll unit 62 due to the capillary action of the fibers of the nonwoven fabric constituting the roll unit 62. The rolls 61a and 61b are the same as any of the rolls 1 and 21 of Examples 1 to 3 described above.

  In the state of the rolls 61a and 61b as described above, when the vacuum pump 67 is operated to apply a vacuum suction force, a negative pressure is applied to the roll part 62, and the oil component absorbed by the roll part 62 becomes a fluid, The fluid passes through the fluid introduction groove and the hole, flows into the opening, is sucked to the outside of the rolls 61a and 61b through the pipe 65 from the hollow portion formed in the joint A68 and the joint B69, and is discharged. Is done. The fluid is sent again to the cleaning oil tank through a pipe (not shown) via a filter (not shown) by the vacuum pump 67. Therefore, since the liquid absorption saturation state of the roll part 62 is eliminated and the suction / discharge function is maintained, the rolls 61a and 61b can reliably remove the oil adhering to the steel plate 70 over a long period of time.

  The operation and action of the cleaning device 60 configured as described above are as follows.

  Since the cleaning device 60 is equipped with rolls 61a and 61b that can reliably remove oil from the steel plate 70 over a long period of time, excellent oil removal performance is exhibited. For this reason, the generation of residue marks in which oil remains unevenly on the steel plate 70 is suppressed, and the quality of the steel plate 70 can be improved.

  The roll of the present invention is mainly used for the purpose of removing, squeezing, and cleaning liquids such as moisture, oil, or chemical components adhering to the steel plate, non-ferrous metal plate, resin plate, or film-like surface to be cleaned. As a roll that requires high liquid removal performance, it can be used widely and suitably.

1, 2, 61a, 61b Roll 2, 22, 62 Roll part 3, 23, 43, 63 Base 4a, 4b, 24a, 24b, 44a, 44b, 44c Roll piece 5, 25 Fastening bracket 6, 26 Plate 7, 27 47 Main body part 8, 28, 48, 68 Joint part A
9, 29, 49, 69 Joint B
10, 30 Open portion 11, 31 Hollow portion 12, 32 Screw portion 13, 33, 53 Hole portion 14, 34 Fluid introduction groove portion 15, 55 Recessed portion 16, 56 Joint portion 17, 37, 57 Non-woven fabric 18, 38, 58 Hole Part 19 Side edge part 20, 40, 50 Notch part 39a, 39b, 59a, 59b, 59c Reinforcement member 60 Cleaning device 64 Drive means 65 Piping 66 Rotary joint 67 Vacuum pump 70 Steel plate 71, 81 Gradual change part

Claims (7)

  A roll for removing, squeezing, and cleaning liquids such as moisture, oil, or chemical components adhering to a steel plate, non-ferrous metal plate, resin plate, or film-like surface to be cleaned. The pedestal has a main body portion having an opening, and a joint portion A and a joint portion B connected to both ends of the main body portion, and the joint portion A and the joint portion B are formed with a hollow portion. The hollow portion is in communication with the opening, and in the vicinity of the joint between the main body, the joint A, and the joint B, the opening area of the opening is substantially equal to the central portion of the main body. A gradually changing portion is formed so as to be smaller than the opening area, and a hole portion is formed on the outer periphery of the main body portion so as to communicate with the opening portion, the roll portion is formed, and the roll portion is made of a nonwoven fabric. A plurality of roughly annular roll pieces A plurality of fluid introduction groove portions are formed by connecting the cutout portions in the longitudinal direction of the main body portion. The said fluid introduction groove part is located in the said roll part side, The roll characterized by the above-mentioned.   The roll having the configuration according to claim 1, wherein the fluid introduction groove is formed in a range between the vicinity of one end and the vicinity of the other end in the longitudinal direction of the roll.   The roll which consists of a structure of Claim 1 or 2 WHEREIN: A roll part has a reinforcement member whose rotation outer diameter is smaller than a roll piece, The roll characterized by the above-mentioned.   The roll which consists of a structure of Claim 3 WHEREIN: The notch part is formed in the inner periphery of a reinforcement member, The roll characterized by the above-mentioned.   The roll which consists of a structure of Claim 1 to 4 WHEREIN: The notch part which a roll piece and a reinforcement member have is formed in the equally divided part of an inner periphery, The roll characterized by the above-mentioned.   In the roll having the configuration according to any one of claims 1 to 5, the ratio of the opening area of the hole to the outer periphery of the main body is formed so that the central portion is larger than the vicinity of the end of the main body. A roll characterized by   A cleaning apparatus comprising: the roll according to any one of claims 1 to 6; drive means for rotationally driving the roll; and a vacuum pump communicated with the joint portion A and the joint portion B via a pipe.

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