JP2014091075A - Roll and washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll excellent in liquid absorbing performance and durability, and a washing device mounted with the roll, without causing meandering of an object, even in the roll constituted for sucking liquid from one end part of a pedestal.SOLUTION: The roll 1 comprises a roll part 2 and the pedestal 3, and the pedestal 3 comprises a body part 4 forming the roll part 2 on the outer periphery, a joint part A5 and a joint part B6 linked to both ends of the body part 4, and the body part 4 is formed with an opening part 10, and a hole part 12 communicating with the opening part 10 is opened on the outer periphery, and a hollow part 11 is formed in the joint part A5, and the hollow part 11 is communicated with the opening part 10, and the sum total of the opening area of the hole part 12 opened on the joint part A5 side from a substantially central part in the longitudinal direction of the body part 4, is larger than the sum total of the opening area of the hole part 12 opened on the joint part B6 side.

Description

  The present invention relates to 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 object, and a cleaning equipped with the roll. It relates to the device.

For this type of conventional roll, for example, a cylindrical shaft body formed by opening a large number of through holes communicating with the hollow portion of the shaft portion with an area ratio of about 0.3 to 1% with respect to the outer surface area of the roll. A large number of nonwoven fabric sheets are inserted, and the nonwoven fabric sheets are compressed to a compression ratio that generates a vacuum by applying a suction air volume of 5 to 30 liters / min-cm ² per unit area to the through-holes by the suction force of a vacuum pump. In the nonwoven fabric roll part which is controlled in the tissue density and is pressure-bonded, the liquid absorption / liquid feeding capillary part effective in a substantially inverted conical shape is applied to the outer surface direction of the nonwoven fabric roll part, and a part of the vacuum suction force is A liquid-absorbing roll (Patent Document 1) is devised that is superposed on the radial surface of the nonwoven fabric roll and arranged so that the vacuum suction force acts uniformly on the radial surface of the nonwoven fabric roll. Yes.

JP-A-7-120145

  The liquid absorption roll of patent document 1 is a structure which attracts | sucks a liquid from one edge part of a shaft main body, and the outer diameter of a through-hole is substantially the same and is opened uniformly in the longitudinal direction of a shaft main body. Therefore, the vacuum suction force tends to vary on the outer surface of the nonwoven fabric roll part. That is, the vacuum suction force of the outer surface of the nonwoven fabric roll part located near the end of the shaft body close to the vacuum pump is strong, and the outer surface of the nonwoven fabric roll part located near the end of the shaft body away from the vacuum pump The vacuum suction force is weakened. Therefore, the object tends to stick to the outer surface of the nonwoven fabric roll portion located in the vicinity of the end of the shaft main body close to the vacuum pump, and is pulled. As a result, there is a problem that the object meanders, the production line stops, and the productivity is impaired.

  The present invention solves the above-described conventional problems, and even if the roll is configured to suck liquid from one end of the pedestal, the object does not meander and the liquid absorption performance and durability are improved. An object of the present invention is to provide an excellent roll and a cleaning device 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 object, In the roll for exploitation and washing, the roll has a roll part and a pedestal, and the pedestal has a main part formed on the outer periphery of the roll part, and a joint part A and a joint connected to both ends of the main part. The body portion has an opening, and a hole communicating with the opening is formed on the outer periphery. The joint portion A has a hollow portion, and the hollow portion Is communicated with the opening, and the total area of the opening of the hole established on the side of the joint A from the substantially central portion in the longitudinal direction of the main body is established on the side of the joint B. It is larger than the total opening area of holes Thus, the surface of the roll part close to the joint part A side where the hollow part is formed has better air permeability than the surface of the roll part close to the joint part B side, and the suction force of the roll part surface is on the joint part B side. It becomes weaker than the surface of the roll part. Therefore, the sticking of the target object to the surface of the roll part is weakened, the target object is prevented from meandering to the joint part A side, and the productivity of the target object is improved.

  The roll of the invention of claim 2 is the roll of claim 1 in particular, in which holes are not formed at least at both ends in the longitudinal direction of the main body, and in the vicinity of both ends of the main body. No hole is formed. Therefore, the fluid generated by the vacuum suction force does not leak from both ends of the main body, pressure loss is prevented, and it is reliably discharged outside the roll through the hole, opening, and hollow. Excellent liquid absorption performance is demonstrated.

  The roll of the invention of claim 3 is the roll of claims 1 to 2 in particular, in which the roll portion is crowned, and even if the object is likely to meander, the object is placed at the end of the roll. Can be returned to the approximate center.

  The crown in the present invention means a radial crown, a tapered crown or the like. The radial crown is a process formed with a gentle curve so that the outer diameter becomes smaller from the substantially central part of the roll part toward both ends. The taper crown is a process formed so that the outer diameter is gradually reduced from the vicinity of both ends to the end while being horizontal from approximately the center of the roll to the vicinity of both ends.

  By applying the crown processing as described above to the roll portion, the outer diameter of the substantially central portion of the roll portion is larger than that of both end portions. Therefore, when the roll rotates, when the circumferential speed is compared between the substantially central part and both ends of the roll part, the circumferential speed is higher in the substantially central part having a larger outer diameter. Since the object is pulled toward the higher peripheral speed, even if the object is likely to meander, the object is pulled back to the approximate center of the roll part, and meandering is prevented.

  Note that the same meandering-preventing effect as described above is exhibited even when the roll portion has a generally trapezoidal shape with the outer diameter of the roll portion increasing from small to large from the joint portion A side to the joint portion B side.

  The roll of the invention of claim 4 is connected to a vacuum pump via a rotary joint and piping at the end of the joint part A in the roll of claims 1 to 3 in particular, and sucks the liquid absorbed by the roll part. Thus, the liquid absorbed in the roll part is discharged from the pipe to the outside through the hole part, the opening part, and the hollow part. For this reason, the liquid absorption saturation state of the roll part is eliminated, leading to a long life of the roll.

  A cleaning device according to a fifth aspect of the present invention includes at least the roll according to any one of the first to fourth aspects, a driving unit that rotationally drives the roll, and a vacuum pump, and the object meanders. There is provided a cleaning device that can reliably remove liquid from the surface of an object.

  In the roll of the first aspect of the invention, the suction force on the surface of the roll part in the vicinity of the joint part A side is relaxed, the sticking of the object to the roll part surface becomes weak, and the object meanders to the joint part A side. This can improve the productivity of the object.

  The roll of the invention of claim 2 prevents suction leakage from both ends of the main body, can reliably discharge the fluid to the outside, and exhibits excellent liquid absorption performance.

  The roll of the invention of claim 3 can prevent meandering by returning the object to the substantially central part of the roll part even if the object is likely to meander.

  In the roll of the invention of claim 4, the liquid absorption saturation state of the roll part is eliminated, and the life of the roll can be prolonged.

  The cleaning device of the fifth aspect of the present invention can reliably remove the liquid from the surface of the object without causing the object to meander.

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 the hole of a main-body part, (b) The top view of the roll piece laminated | stacked on the outer periphery of the formation area of the hole of a main-body part. It is a front view of the roll in the 2nd Example of the present invention. It is sectional drawing of FIG. 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 8, a plate 9, and a roll portion 2 including a plurality of roll pieces 7 a and 7 b. The pedestal 3 is made of a metal material such as iron, SUS, or aluminum, and has a roll portion 2 formed on the outer periphery thereof, and is connected to both ends of the main body portion 4 having the opening 10 and the main body portion 4. , The joint portion A5 having the hollow portion 11 and the solid joint portion B6. The roll part 2 is formed by laminating a plurality of roll pieces 7 a and 7 b on the outer periphery of the main body part 4 constituting the pedestal 3, and overlapping the roll part 2. Is formed. Further, a radial crown is applied so as to be gently curved from the substantially central portion of the roll portion 2 toward both end portions. A nut is used for the fastener 8, but a snap ring or the like may be used.

2 and 3, the main body 4 constituting the base 3 has a plurality of circular holes 12 formed on the outer periphery so as to be substantially parallel to the longitudinal direction. The hole 12 is provided on the outer periphery of the main body 7, and the distance between the adjacent holes 12 and 12 in the longitudinal direction is closer to the joint B 6 than the substantially central part. It is set shorter than the interval between the adjacent holes 12 and 12 in the longitudinal direction. That is, the opening area of the hole 12 on the joint part A5 side is larger than the opening area on the joint part B6 side, and the air permeability of the roll part 2 is improved on the joint part A5 side. Also, the hole portion 12, of the total length over the longitudinal direction of the main body 4 is opened within the scope of the formation region L ₁ except for the non-formation region L ₂ in the vicinity of both end portions. Further, the hole 12 communicates with the opening 10 of the main body 4. The shape of the hole 12 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 circular shape. Further, the joint portion A5 is provided with a hollow portion 11, and at one end portion thereof is formed a screw portion 13 to which a rotary joint (not shown) is connected, and the other is the main body portion 4. It is connected with the edge part via the junction part 15 by welding. Therefore, the opening 10 included in the main body portion 4 and the hollow portion 11 included in the joint portion A5 inevitably communicate with each other. The solid joint portion B6 is also connected to the end portion of the main body portion 4 via the joint portion 15. The fastener 8 is screwed to the fitting portion 16 formed in the joint portion A5 and the joint portion B6.

  Further, a gradually changing portion 14 having an inclined surface is formed in the vicinity of the joint portion 15 between the main body portion 4 and the joint portion A5. Therefore, in the vicinity of the joint portion 15 between the main body portion 4 and the joint portion A5, the opening area of the opening portion 10 becomes smaller than the opening area of the substantially central portion of the main body portion 4 as the opening portion area is closer to the joint portion A5. By forming the gradually changing portion 14, the fluid can easily flow from the opening 10 to the hollow portion 11, and the fluid can be prevented from staying in the opening 10.

In FIG. 4A, the roll piece 7a is composed of a substantially annular nonwoven fabric 17 having a hole 18 at the center and a side edge 19 at the outer periphery. The nonwoven fabric 17 has a plurality of fibers (not shown). As shown in FIGS. 2 and 3, the roll piece 7 a is in the vicinity of both end portions in the longitudinal direction of the main body 4 constituting the pedestal 3, that is, the non-formation region where the hole 12 is not opened on the outer periphery of the main body 4. It is laminated in the range of L _2.

In FIG.4 (b), the roll piece 7b consists of the substantially annular nonwoven fabric 17 in which the hole part 18 was formed in the center part, and the side edge part 19 was formed in the outer periphery. The nonwoven fabric 17 has a plurality of fibers (not shown). In addition, the roll piece 7b is formed with approximately U-shaped cutout portions 20 at six equally spaced inner circumferences. Roll pieces 7b has, as in FIG. 2, and 3, forming regions hole 12 except for the non-formation region L ₂ in the vicinity of both ends across the longitudinal direction of the main body portion 4 constituting the base 3 is opened in the outer periphery 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 4, thereby forming a plurality of fluid introduction groove portions 21 as shown in FIG. 2 and introducing the fluid into the roll portion 2 side of the hole portion 12. It is set so that the groove portion 21 is positioned. That is, the hole 12 and the fluid introduction groove 21 are formed to face each other. The number of the notches 20 formed on the inner periphery of the roll piece 7 b is changed according to the number of the holes 12 provided on the outer periphery of the main body 4 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 total number of roll pieces 7a and 7b used for the roll 1. Roll pieces 7b positioned on the roll pieces 7a 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 displacement of the roll pieces 7a and 7b with respect to the pedestal 3, a concave groove is formed on the inner periphery of the roll pieces 7a and 7b, and the main body 4 constituting the pedestal 3 is formed. The roll pieces 7 a and 7 b may be laminated on the outer periphery of the main body 4 by attaching a convex key to the outer periphery in the longitudinal direction and fitting and inserting the concave groove into the convex key. Such a structure is generally called a positive key structure. Furthermore, by providing a convex part on the inner periphery of the roll pieces 7a, 7b, forming a concave groove part on the outer periphery of the main body part 4, and fitting and inserting the convex part into the concave groove part, The roll pieces 7 a and 7 b may be laminated on the outer periphery of the main body 4. Such a structure is generally called a reverse key structure.

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

  First, a substantially cylindrical main body 4 having a hole 12 on the outer periphery and having an opening 10 is prepared. Next, the hollow joint portion A5 in which the hollow portion 11 and the gradually changing portion 14 having the inclined surface are formed, and the solid joint portion B6 are inserted into both ends of the main body portion 4, and press-fitted, or While shrinking, the main body 4, the joint A5, and the joint B6 are integrated through the joint 15 by welding to form the base 3. As long as the strength of the pedestal 3 is maintained, the main body 4, the joint A5, and the joint B6 may be connected by 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 7a having a hole 18 and a side edge 19 is provided. Then, it is punched into a generally annular roll piece 7b having notches 20 at six portions of the hole 18, the side edge 19, and the inner periphery. Next, a plurality of roll pieces 7 a are overlapped so that the hole 18 penetrates the pedestal 3 and is laminated in the vicinity of the range of the one non-formation region L ₂ where the hole 12 is not formed on the outer periphery of the main body 4. Next, a plurality of roll pieces 7 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 12 is formed on the outer periphery of the main body 4. At that time, the cutout portions 20 are stacked so as to be continuous in the longitudinal direction, and the fluid introduction groove portion 21 formed by the continuous cutout portions 20 and the hole portion 12 are opposed to each other. Then, by superposing a plurality of rolls pieces 7a, is passed through a hole 18 against the base 3 are laminated in the vicinity of the outer circumference hole portion 12 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 7a 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 7b are located, the stop member 8 and, A plurality of roll pieces 7 a and 7 b are sandwiched and fixed by the plate 9. Next, by leaving it for a predetermined time, the internal stress of the plurality of roll pieces 7 a and 7 b overlapped is made uniform, the side edge 19 is cut and polished, and the outer periphery of the main body 4 constituting the base 3 A roll 1 is formed by forming a roll 2.

When the roll part 2 is cut and polished, a radial crown process is performed by using a bite, a grinder or the like so that the roll part 2 has a gently curved shape from the substantially central part toward both ends. Therefore, a difference in outer diameter occurs between the substantially central portion and both end portions of the roll portion 2. The outer diameter difference is appropriately determined depending on the length of the roll part 2 and the type of the object. For example, when the object is a metal product such as a steel plate or non-ferrous metal, an outer diameter difference of about 1 mm is given to the length of the roll portion 2 of 1000 mm. That is, in the case of the roll 1 having a length of the roll part 2 of 3000 mm, the roll part 2 is manufactured with an outer diameter difference of 3 mm between the substantially central part and both ends. Moreover, it is desirable that the thin object such as a film is manufactured with an outer diameter difference of about 1/3 to 2/3 of the above metal product.

  The hardness of the surface portion of the roll portion 2 is desirably set to about 40 ° to 95 °. If the hardness is less than 40 °, the hardness is too low, and when the end surface and the end of the object repeatedly come into contact with the roll 2, the roll 2 is worn early. 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 exhibit an effective liquid removing 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 12 and the width and depth of the fluid introduction groove 21 are not particularly limited. For example, the diameter of the hole 12 is about 1 to 8 mm, and the width of the fluid introduction groove 21 is 2 to 30 mm. The depth and the depth are desirably set to about 0.1 to 20 mm, and the width of the fluid introduction groove 21 needs to be set larger than the diameter of the hole 12. When the diameter of the hole 12 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. When the width of the fluid introduction groove 21 is less than 2 mm, the width is too narrow to allow the fluid to flow efficiently. When the width exceeds 30 mm, the width is too wide between the inner periphery of the roll piece 7 b and the main body 4. The gap portion is increased, and the roll piece 7b is likely to be displaced as the roll 1 rotates. When the depth of the fluid introduction groove 21 is less than 0.1 mm, the fluid cannot flow efficiently because it is too shallow. When it exceeds 20 mm, the thickness of the roll piece 7 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 7a and 7b 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. For the fibers forming the nonwoven fabric 17, polyester, nylon, spandex, also called urethane elastic yarn, polyphenylene sulfide, or the like is 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, an acryl, are used individually or together. 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 in the roll 1, it is strong against repeated contact of the object and the fibers are not easily frayed. Compared to the case where other fabrics such as woven fabric and knitted fabric are used for the roll 1, the roll 1 leads to improved durability.

  About selection of the nonwoven fabric 17 used for the roll pieces 7a and 7b, 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 portion 2 and a pedestal 3, and the pedestal 3 includes a main body portion 4 on which the roll portion 2 is formed on the outer periphery, a joint portion A5 connected to both ends of the main body portion 4, and a joint portion B6. The body portion 4 has an opening 10 formed therein, and a hole portion 12 communicating with the opening portion 10 is formed on the outer periphery. A hollow portion 11 is formed in the joint portion A5. The total opening area of the hole portion 12 that is communicated with the opening portion 10 and is opened on the joint portion A5 side from the substantially central portion in the longitudinal direction of the main body portion 4 is the number of the hole portions 12 that are opened on the joint portion B6 side. It is larger than the total number of establishment areas. That is, the sum of the opening area of the hole portion 12 on the joint portion A5 side is larger than the sum of the opening area of the hole portion 12 on the joint portion B6 side, and the roll portion close to the joint portion A5 side where the hollow portion 11 is formed. The surface of 2 has better air permeability than the surface of the roll part 2 close to the joint part B6 side, and the suction force on the surface of the roll part 2 is weaker than the surface of the roll part 2 on the joint part B6 side. Therefore, the sticking of the object to the surface of the roll part 2 becomes weak, and the object is prevented from meandering to the joint part A5 side.

In the roll 1, the non-formed region L ₂ of the hole 12 is formed at both ends in the longitudinal direction of the main body 4, and no hole 12 is formed in the vicinity of both ends of the main body 4. Therefore, the fluid generated by the vacuum suction force does not leak from both end portions of the main body portion 4, pressure loss is prevented, and the roll 1 is surely passed through the hole portion 12, the opening portion 10, and the hollow portion 11. It is discharged outside and exhibits excellent liquid absorption performance.

  In the roll 1, a radial crown is applied to the roll part 2, and the object can be returned from the end of the roll 1 to the substantially central part even if the object is likely to meander. That is, the outer diameter of the substantially central portion of the roll portion 2 is larger than both end portions. Therefore, when the roll 1 rotates, when the peripheral speed is compared between the substantially central part and both ends of the roll part 2, the peripheral speed is higher in the substantially central part having a larger outer diameter. Since the object is pulled toward the higher peripheral speed, even if the object is likely to meander, it is pulled back to the approximate center of the roll part 2 to prevent meandering.

  The roll 1 has a rotary joint (not shown) joined to the screw part 13 at the end of the joint part A5, and is connected to a vacuum pump (not shown) via a pipe (not shown). Since the absorbed liquid is sucked, the liquid absorbed in the roll part 2 is discharged from the pipe (not shown) to the outside of the roll 1 through the hole part 12, the opening part 10, and the hollow part 11. Therefore, the liquid absorption saturation state of the roll part 2 is eliminated, leading to a prolonged service life of the roll 1.

  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.

  5 and 6, the roll 31 includes a pedestal 33, a stopper 38, a plate 39, and a roll portion 32 including a plurality of nonwoven fabric roll pieces 37. The pedestal 33 is made of a metal material such as iron, SUS, or aluminum, and the main body 34 having the roll portion 32 formed on the outer periphery has a substantially cylindrical shape having an opening 40, and is connected to one end of the main body 34. The joint portion A35 to be formed has a hollow shape having a hollow portion 41, a screw portion 43 to which a rotary joint (not shown) is connected is formed at the end portion, and the joint portion B36 is formed in a solid shape. Yes. The roll part 32 is formed by laminating a plurality of roll pieces 37 on the outer periphery of the main body part 34 constituting the pedestal 33, and overlapping the roll part 32, and sandwiched by a stopper 38 and a plate 39 from both sides. It is formed. The roll portion 32 is provided with a taper crown so that the roll portion 32 is horizontal from the substantially central portion to the vicinity of both end portions, and the outer diameter gradually decreases from the vicinity of both end portions to the end portions. Accordingly, a difference in outer diameter occurs between the substantially center portion and both end portions of the roll portion 32. A nut is used for the fastener 38 and is screwed to a fitting portion 46 provided on the joint portion A35 and the joint portion B36.

  A plurality of circular holes 42a and 42b are formed on the outer periphery of the main body 34 constituting the pedestal 33 so as to be substantially parallel to the longitudinal direction. The hole 42a opened from the substantially central part of the roll part 32 to the joint part A35 side has a larger opening area than the hole part 42b opened from the substantially central part of the roll part 32 to the joint part B36 side. Yes. Therefore, the air permeability of the roll part 32 is improved on the side of the joint part A35. Further, the holes 42a and 42b are not opened in the vicinity of both ends of the entire length of the main body 34 in the longitudinal direction, but are opened in a range excluding the vicinity of both ends. The holes 42 a and 42 b communicate with the opening 40 of the main body 34. Further, the joint portion A35 is provided with a hollow portion 41, and at one end portion thereof, a screw portion 43 to which a rotary joint (not shown) is connected is formed, and the other is the main portion 34. It is connected with the edge part via the junction part 45 by welding. Therefore, the opening 40 included in the main body 34 and the hollow portion 41 included in the joint A35 inevitably communicate with each other. On the other hand, the joint portion B36 is solid, and is connected to the end portion of the main body portion 34 via a joining portion 45 by welding.

  Further, a gradually changing portion 44 having an inclined surface is formed in the vicinity of the joint portion 45 between the main body portion 34 and the joint portion A35. Accordingly, in the vicinity of the joint portion 45 between the main body portion 34 and the joint portion A35, the opening area of the opening portion 40 becomes smaller than the opening area of the substantially central portion of the main body portion 34 as the joint portion A35 side.

  The operation and action of the roll 31 configured as described above are as follows.

  The roll 31 includes a roll portion 32 and a pedestal 33. The pedestal 33 includes a main body portion 34 formed on the outer periphery, a joint portion A35 connected to both ends of the main body portion 34, and a joint portion B36. The body portion 34 is formed with an opening 40, and holes 42a and 42b communicating with the opening 40 are formed on the outer periphery, and the hollow portion 41 is formed in the joint portion A35. 41 is communicated with the opening 40, and the total opening area of the hole 42 a opened on the joint A 35 side from the substantially central portion in the longitudinal direction of the main body 34 is the hole formed on the joint B 36 side. It is larger than the cumulative total of 42b. That is, the total opening area of the holes 42a on the joint part A35 side is larger than the total opening area of the holes 42b on the joint part B36 side, and the roll part close to the joint part A35 side where the hollow part 41 is formed. The surface of 32 has better air permeability than the surface of the roll part 32 close to the joint part B36 side, and the suction force on the surface of the roll part 32 is weaker than the surface of the roll part 32 on the joint part B36 side. Therefore, the sticking of the object to the surface of the roll part 32 becomes weak, and the object is prevented from meandering to the joint part A35 side.

  In the roll 31, the holes 42 a and 42 b are not opened in the vicinity of both ends in the longitudinal direction of the main body 34, and the holes 42 a and 42 b are opened in a range excluding the vicinity of both ends of the main body 34. Therefore, the fluid generated by the vacuum suction force does not leak from both end portions of the main body portion 34, pressure loss is prevented, and the holes 42a and 42b, the opening portion 40, and the hollow portion 41 are securely connected. It is discharged to the outside of the roll 31 and exhibits excellent liquid absorption performance.

  The roll 31 has a tapered crown on the roll portion 32, and can return the object from the end of the roll 31 to the substantially central portion even if the object is likely to meander. That is, the outer diameter of the substantially central portion of the roll portion 32 is larger than that of both end portions. Therefore, when the roll 31 rotates, when the circumferential speed is compared between the substantially central portion and both end portions of the roll portion 32, the circumferential speed is higher in the substantially central portion having a larger outer diameter. Since the object is pulled toward the higher peripheral speed, even if the object is likely to meander, the object is pulled back to the substantially central portion of the roll portion 32 to prevent meandering.

  The roll 31 is formed by joining a rotary joint (not shown) to the screw part 43 at the end of the joint part A35 and connecting it to a vacuum pump (not shown) via a pipe (not shown). Since the absorbed liquid is sucked, the liquid absorbed by the roll part 32 is discharged from the pipe (not shown) to the outside of the roll 31 through the holes 42a and 42b, the opening 40 and the hollow part 41. . Therefore, the liquid absorption saturation state of the roll part 32 is eliminated, leading to a prolonged service life of the roll 31.

  The cleaning apparatus of Example 3 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 film.

  The roll 71 is installed in the cleaning device 70 and is driven to rotate in the direction of the arrow by the driving means 74 installed at the end of the joint part B76 constituting the pedestal 73 so that oil (not shown) adheres to both surfaces. A scale-shaped film 80 is fed in the direction of the white arrow. A rotary joint 79 is inserted into the end of the joint portion A75 and is connected to a vacuum pump 77 via a pipe 78. The roll 71 removes oil from the back surface of the film 80. The oil adhering to the surface of the film 80 comes into contact with a roll portion of a similar roll (not shown) installed on the front side or the rear side of the roll 71 and is removed. The film 80 to which the oil component is attached comes into contact with the roll portion 72, and the oil component is sucked up by the roll portion 72 and discharged into the gap of the roll portion 72 due to the capillary action of the fibers of the nonwoven fabric constituting the roll portion 72. In addition, the roll 71 is the same as any of the rolls 1 and 31 of Examples 1-2 shown above.

  When the vacuum pump 77 is operated and the vacuum suction force is applied in the state of the roll 71 as described above, a negative pressure is applied to the roll part 72, and the oil component absorbed by the roll part 72 becomes a fluid, and the fluid is , Flows into the opening through the hole, and is sucked out of the roll 71 through the pipe 78 from the hollow formed in the joint A75 and discharged. The fluid is sent again to the cleaning oil tank through a pipe (not shown) through a filter (not shown) by the vacuum pump 77. Therefore, since the liquid absorption saturation state of the roll part 72 is eliminated and the absorption / exhaust function is maintained, the roll 71 can reliably remove the oil adhering to the film 80 over a long period of time.

  The operation and action of the cleaning apparatus 70 configured as described above are as follows.

  The cleaning device 70 can reliably remove oil from the front and back surfaces of the film without the film meandering.

  The roll of the present invention is mainly used for the purpose other than the purpose of removing, exploiting, and washing liquid such as moisture, oil, or chemical components adhering to a steel plate, non-ferrous metal plate, resin plate, or film-like object. It can be used widely and suitably as a roll that requires liquid removal performance.

1, 31, 71 Roll 2, 32, 72 Roll part 3, 33, 73 Base 4, 34 Main body part 5, 35, 75 Joint part A
6, 36, 76 Joint B
7a, 7b, 37 Roll piece 8, 38 Stopping bracket 9, 39 Plate 10, 40 Opening 11, 41 Hollow part 12, 42a, 42b Hole 13, 43 Screw part 14, 44 Gradual change part 15, 45 Joint part 16 , 46 Fitting part 17 Nonwoven fabric 18 Hole part 19 Side edge part 20 Notch part 21 Fluid introduction groove part 70 Cleaning device 74 Drive means 77 Vacuum pump 78 Piping 79 Rotary joint 80 Film

Claims (5)

  A roll for removing, extracting, and cleaning liquids such as moisture, oil, or chemical components adhering to a steel plate, non-ferrous metal plate, resin plate, or film-like object. The roll has a roll portion and a pedestal. The pedestal has a main body part in which the roll part is formed on the outer periphery, and a joint part A and a joint part B connected to both ends of the main body part, and the main body part is formed with an opening, A hole communicating with the opening is formed on the outer periphery, a hollow portion is formed in the joint portion A, the hollow portion is in communication with the opening, and is substantially in the center in the longitudinal direction of the main body. The roll is characterized in that the total opening area of the holes established on the side of the joint A from the section is larger than the total opening area of the holes established on the side of the joint B.   The roll which consists of a structure of Claim 1 WHEREIN: The non-formation area | region of a hole is formed in the both ends of the longitudinal direction of a main-body part at least, The roll characterized by the above-mentioned.   The roll which consists of a structure of Claim 1 to 2, The crown process is given to the roll part, The roll characterized by the above-mentioned.   4. A roll comprising the structure according to claim 1, wherein the end of the joint A is connected to a vacuum pump via a rotary joint and piping, and the liquid absorbed by the roll is sucked. .   A cleaning apparatus comprising at least a roll according to any one of claims 1 to 4, drive means for rotationally driving the roll, and a vacuum pump.

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