JP2009219986A - Roller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roller excellent in durability capable of sucking liquid absorbed by a roller part quickly and uniformly and discharging the sucked liquid to the outside of the roller, retaining rotation balance of the roller, and removing the liquid uniformly from the surface to be washed and squeezing out the liquid from the surface to be washed, and washing the surface to be washed over a long period of time. <P>SOLUTION: The roller 1 comprises the roller part 2 and a pedestal 3, and the pedestal 3 has a main body part 7, coupling part A8 and coupling part B9 connected with both ends of the main body part 7 and, further, has an opening part 10, and is formed to be penetrated in a hollow shape. On the outer circumference of the main body part 7, the roller part 2 made of non-woven fabric is formed, and at the same time, suction ports 11 communicating with the opening part 10 are formed and, on the neighborhood of the ends of the main body part 7, gradually changing parts such that the opening area of the opening part 10 becomes smaller as compared to the opening area of the center part of the main body part are formed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

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

  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 for liquid absorption, the roll part which consists of a nonwoven fabric layer will be in a liquid absorption saturated state gradually. The liquid removal function in a roll that does not have an external device necessary for liquid absorption is that the surface to be cleaned with liquid attached to the rotating roll while applying a constant pressure such as air pressure or hydraulic pressure via a compressor or the like. In contact with the dam function that drains the liquid from both ends of the surface to be cleaned, and in the compression zone where the roll rotates and contacts the surface to be cleaned and is compressed by pressure, it is absorbed by the gap of the roll portion. In the open zone where the liquid is once discharged 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 gap in the roll It is composed of an intake / exhaust function consisting of a mechanism that is released to 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 for a period. As for the relationship between the elastic modulus and swelling degree of the polymer elastic body, Flory's theory of rubber elasticity is known in which the elastic modulus is inversely proportional to the third power of the swelling degree.

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

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

  The liquid absorption method using the nonwoven fabric roll of Patent Document 2 and the liquid absorption roll device used in this liquid absorption method are designed to absorb the liquid absorbed in the roll portion in addition to the dam function and the suction / discharge function of the nonwoven fabric roll. 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.

  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, the 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. It aims at providing the roll excellent in durability which can remove a liquid uniformly from a to-be-cleaned surface, and can extract and wash | clean.

  In order to solve the above-mentioned conventional problems, the roll of the invention of claim 1 is provided with a liquid such as moisture, oil, or chemical components adhering to the surface to be cleaned made of a steel plate, non-ferrous metal plate, resin plate, or film. In the roll for removal, exploitation, and washing, the roll has a roll part and a base, and the base has a main body part and a joint part A and a joint part B connected to both ends of the main body part, and an opening. A hollow portion having a portion formed therethrough, and an outer periphery of the main body portion is formed with the roll portion made of a nonwoven fabric, and a suction hole communicating with the opening portion is formed, In the vicinity of the end of the main body part, an exfoliation part is formed so that the opening area of the opening part is smaller than the opening area of the central part of the main body part, and the base is hollow. Because it is formed through Both ends articulated joint portion A of the main body portion, and the joint portion B can be connected to a vacuum pump together through a pipe. Therefore, since the liquid absorbed in the roll part can be sucked from both ends of the pedestal at the same time, there is no variation in the vacuum suction force, and the liquid absorbed in the roll part can be quickly and Suction uniformly to discharge outside the roll. Therefore, the liquid absorption saturation state of the roll part is eliminated, and the service life of the roll can be prolonged.

  Moreover, since the joint part A and the joint part B which comprise a base are both hollow, a weight difference does not arise in the both ends of a base, and the rotational balance of a 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.

  Further, since the change-over portion is formed in the vicinity of both ends of the main body constituting the pedestal, the liquid sucked from the roll portion to the main body through the suction hole is an opening formed in the main body. Without flowing into the joint part A, it flows into the joint part A and the joint part B along the inclined surfaces formed at both ends of the main body part, and is discharged to the outside of the roll. In addition, when the 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 part of a main-body part, the joint part A, and the joint part B, and a liquid 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 of the invention of claim 2 is a roll for removing, exploiting, and cleaning liquids such as moisture, oil, or chemical components adhering to the surface to be cleaned comprising a steel plate, non-ferrous metal plate, resin plate, or film. The roll has a roll part and a pedestal, and the pedestal has a main body part and a joint part A and a joint part B connected to both ends of the main body part, and penetrates in a hollow shape having an opening. The roll portion is formed on the outer periphery of the main body portion, and a suction hole communicating with the opening portion is formed. The vicinity of the end portion of the main body portion is A change-over part is formed so that the opening area is smaller than the opening area of the central part of the main body part, and the roll part is a plurality of generally annular roll pieces made of nonwoven fabric on the outer periphery of the main body part , And rotating from the roll piece A reinforcing member having a small diameter is formed by laminating, and since the base is formed in a hollow shape so as to penetrate therethrough, the joint part A connected to both ends of the main body part, and the joint part Both B can be connected to a vacuum pump via a pipe. Therefore, since the liquid absorbed in the roll part can be sucked from both ends of the pedestal at the same time, there is no variation in the vacuum suction force, and the liquid absorbed in the roll part can be quickly and Suction uniformly to discharge outside the roll. Therefore, the liquid absorption saturation state of the roll part is eliminated, and the service life of the roll can be prolonged.

  Moreover, since the joint part A and the joint part B which comprise a base are both hollow, a weight difference does not arise in the both ends of a base, and the rotational balance of a 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.

  Further, since the change-over portion is formed in the vicinity of both ends of the main body constituting the pedestal, the liquid sucked from the roll portion to the main body through the suction hole is an opening formed in the main body. Without flowing into the joint part A, it flows into the joint part A and the joint part B along the inclined surfaces formed at both ends of the main body part, and is discharged to the outside of the roll.

  In addition, since the roll part is formed by laminating a plurality of substantially annular roll pieces made of nonwoven fabric, the roll part can be adjusted by adjusting the number of rolls to be laid on the base of the roll piece according to the purpose of use of the roll. The surface hardness can be arbitrarily set. That is, the greater the number of roll pieces stacked, the higher the hardness, and the lower the number, the lower the hardness. 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.

  Furthermore, since the roll part is laminated with a reinforcing member having a smaller rotation outer diameter than the roll piece, the surface part of the roll part is softer and softer than the core part, so the elasticity of the roll is low. This improves the contact area between the roll part and the surface to be cleaned, and improves the liquid removal performance from the surface to be cleaned of the roll. In addition, since the core of the roll part is harder and harder than the surface part, the roll piece is not displaced from the main body part during rotation of the roll, and the surface part of the roll part may be uneven. Since it is suppressed, the roll part uniformly contacts the surface to be cleaned, and the roll can maintain high durability.

  Since the roll of the invention of claim 1 quickly and uniformly sucks the liquid absorbed in the roll portion and discharges it to the outside of the roll, the liquid absorption saturation state of the roll portion is eliminated, and the roll has a long service life. In addition, since the roll portion is slidably contacted with the surface to be cleaned, the liquid can be uniformly removed, exploited and cleaned from the surface to be cleaned.

  Further, the liquid sucked from the roll part to the main body part through the suction hole is transferred to the joint part A and the joint part B along the change-over part having inclined surfaces formed in the vicinity of both end parts of the main body part. Since it flows in and is discharged to the outside of the roll, the suction effect is improved.

  Since the roll of the invention of claim 2 quickly and uniformly sucks the liquid absorbed in the roll part and discharges it to the outside of the roll, the liquid absorption saturation state of the roll part is eliminated, and the roll has a long service life. In addition, since the roll portion 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.

  Further, the liquid sucked from the roll part to the main body part through the suction hole is transferred to the joint part A and the joint part B along the change-over part having inclined surfaces formed in the vicinity of both end parts of the main body part. Since it flows in and is discharged to the outside of the roll, the suction effect is improved.

  Furthermore, the hardness in the surface part and / or core part of a roll part can be arbitrarily set according to the intended purpose of the roll.

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

Example 1
FIG. 1 is a front view of a roll in the first embodiment of the present invention, FIG. 2 is a cross-sectional view of the roll in the first embodiment of the present invention, and FIG. 3 is a perspective view of the roll piece viewed from the front side. It is.

  In FIG. 1, a roll 1 is composed of a pedestal 3, a stopper 5, a plate 6, and a roll portion 2 including a plurality of roll pieces 4. The pedestal 3 is made of a metal material such as iron, and the main body part 7 having the roll part 2 formed on the outer periphery, the joint part A8 connected to one end of the main body part 7, and the other of the main body part 7. It is comprised from the joint part B9 connected with an edge part. The roll part 2 is formed by laminating a plurality of roll pieces 4 on the outer periphery of the main body part 7 constituting the pedestal 3, and overlapping the roll part 2, and is sandwiched between the stopper 5 and the plate 6 from both sides. It is formed. A snap ring is used for the fastener 5.

  In FIG. 2, the pedestal 3 is formed in a hollow shape having an opening 10. A plurality of circular suction holes 11 are formed in a zigzag shape on the outer periphery of the main body portion 7 constituting the pedestal 3, and the suction holes 11 communicate with the opening 10 of the main body portion 7. In addition, a screw portion 12 to which a rotary joint (not shown) is connected is formed at one end of the joint portion A8 and the joint portion B9, and the other is connected to the end portion of the main body portion 7. Yes.

  Since the plurality of suction holes 11 are formed on the outer periphery of the main body portion 7 in a zigzag shape, they are arranged at a plurality of positions in the circumferential direction of the outer periphery of the main body portion 7 and a plurality of positions in the axial direction. Therefore, the suction effect of the liquid absorbed by the roll unit 2 is improved. Further, the shape of the suction hole 11 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 the circular shape.

  Further, in the vicinity of the end portion of the main body portion 7, a change-over portion is formed with an inclination angle θ so that the opening area of the opening portion 10 is smaller than the opening area of the central portion of the main body portion 7. Yes. The removal / change portion having an inclined surface is formed in the vicinity of the end of the main body portion 7 because the liquid is efficiently and reliably supplied to the outside of the roll 1 through the joint portion A8 and the joint portion B9 along the inclined surface. It is for discharging. It is desirable to set the inclination angle θ between 5 ° and 30 °. When the inclination angle θ exceeds 30 °, the inclined surface becomes gentle and an inclined surface is formed from the end portion of the main body portion 7 toward the central portion, so that the suction hole 11 is provided in the vicinity of the end portion of the main body portion 7. Is difficult to form, and the suction effect of the liquid absorbed by the roll part 2 is inferior. On the other hand, when the inclination angle θ is less than 5 °, the inclined surface becomes steep, reflux occurs at the connecting portion of the main body portion 7, the joint portion A8, and the joint portion B9, and the liquid is opened in the opening portion 10 of the main body portion 7. Therefore, it becomes difficult to suck the liquid efficiently and reliably and discharge it to the outside of the roll 1. It should be noted that the removal portion may be formed in a curved shape so as to have an R shape instead of a straight shape.

  In FIG. 3, the roll piece 4 is composed of a substantially annular nonwoven fabric 13 having a hole 15 at the center and a side edge 16 at the outer periphery. The nonwoven fabric 13 has a plurality of fibers 14. The roll unit 2 is formed from the total number of roll pieces 4 used for the roll 1. Although not shown in particular, in order to prevent the positional deviation of the roll piece 4 with respect to the pedestal 3, a concave groove is formed in the inner peripheral portion of the roll piece 4, and the axial direction of the main body portion 7 constituting the pedestal 3 is formed. The roll piece 4 may be laminated on the outer periphery of the main body 7 by attaching a convex key to the outer periphery of the main body 7 and fitting and inserting the concave groove into the convex key.

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

  First, a substantially cylindrical main body 7 having a suction hole 11 formed on the outer periphery and having an opening 10 is prepared. Next, a hollow joint A8 having a tilt angle θ at one end and a threaded portion 12 at the other end, and a joint B9 are prepared, and one end where the tilt angle θ is formed, The pedestal 3 is formed by inserting into both ends of the main body 7 and press-fitting or shrink-fitting and welding. The connecting method of the main body part 7, the joint part A8, and the joint part B9 may be a method such as screwing or bolting.

  Next, a flat non-woven fabric 13 having a plurality of fibers 14 is prepared, and the non-woven fabric 13 is made of a Thomson type or a laser cutter or the like, and a generally annular roll piece having a hole 15 and a side edge 16. Punch out to 4. Next, a plurality of roll pieces 4 are overlapped so that the hole portion 15 penetrates the base 3 and is laminated on the outer periphery of the main body portion 7. And after compressing only predetermined length with the press machine from the longitudinal direction of the base 3, the several roll piece 4 is pinched | interposed and fixed with the metal fitting 5 and the plate 6. FIG. Next, by leaving for a predetermined time, the internal stress of the plurality of roll pieces 4 that have been overlapped is made uniform, the side edge portion 16 is cut and polished, and the roll is rolled on the outer periphery of the main body portion 7 constituting the base 3. The part 1 is formed and the roll 1 is manufactured.

  The hardness of the surface of the roll part 2 is preferably 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.

  In addition to forming the plurality of generally annular roll pieces 4 on the outer periphery of the main body portion 7 constituting the base 3, the roll portion 2 is formed by forming a flat nonwoven fabric 13 on the outer periphery of the main body portion 7. It can also be formed by wrapping around.

  The outer diameter of the suction holes 11 and the pitch of the adjacent suction holes 11 in the axial direction of the roll 1 are not particularly limited. For example, the outer diameter of the suction holes 11 is about 1 to 8 mm, and the pitch is 20 It is desirable to set it to about ~ 100 mm. When the outer diameter of the suction hole 11 is less than 1 mm, the diameter is too small to efficiently suck the liquid from the roll part 2 into the opening part 10, and when the diameter exceeds 8 mm, the diameter is too large per hole. The suction power becomes weak. Further, when the pitch of the suction holes 11 is less than 20 mm, the number of the suction holes 11 on the outer periphery of the main body part 7 is increased, the strength of the main body part 7 is weakened, and when the pitch exceeds 100 mm, the number of the suction holes 11 is small, The liquid cannot be efficiently sucked into the opening 10 from the roll unit 2.

  Next, some methods for manufacturing the nonwoven fabric 13 constituting the roll piece 4 will be described.

  In the first method, a plurality of fibers 14 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 combined nonwoven fabric 13 is obtained. The above manufacturing method is generally called needle punching. The cloth-like body is called a web. The obtained nonwoven fabric 13 is impregnated in a polyurethane solution, and the nonwoven fabric 13 is filled with polyurethane. Next, the nonwoven fabric 13 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 14 forming the nonwoven fabric 13, 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 14 are accumulated in a flat plate shape to form a web that becomes a cloth-like body, and a nonwoven fabric 13 entangled three-dimensionally by needle punching is obtained. With respect to the obtained nonwoven fabric 13, a polymer elastic body blended with a crosslinking agent is attached using a method such as spraying, dipping, and impregnation, and the fibers 14 constituting the nonwoven fabric 13 are bonded by heating. The nonwoven fabric 13 obtained by the manufacturing method is generally called a chemical bond method nonwoven fabric. For the fibers 14 forming the nonwoven fabric 13, natural fibers such as cotton, rayon and cellulose, and synthetic resin fibers such as polyester, nylon and acrylic are used alone or in combination. In addition, nitrile rubber, acrylic rubber, styrene rubber, urethane rubber, acrylic resin, urethane resin and the like are used alone or in combination for the polymer elastic body. The crosslinking agent is blended for the purpose of forming a bridge structure between the molecules of the polymer elastic body and imparting further excellent elasticity to the polymer elastic body. Trimethylolmelamine, hexamethylol Melamine resins such as melamine, isocyanate resins such as blocked isocyanate, and epoxy resins such as aliphatic epoxy can be used alone or in combination.

  The third method is to melt spin a thermoplastic resin such as polyamide resin, polyester resin, polyethylene resin, polypropylene resin, and to inject a high-pressure water flow of about 100 to 150 kgf to the obtained thermoplastic resin fiber, thereby 14 is entangled. Subsequently, the nonwoven fabric obtained by the above-described manufacturing method is formed by attaching a polymer elastic body containing a crosslinking agent to the fibers 14 using a method such as spraying, dipping, or impregnation, and heating to form the nonwoven fabric 13. 13 is generally called a hydroentangled nonwoven fabric.

  The manufacturing method of the nonwoven fabric 13 shown above is a typical example. In addition to the above, for example, the fiber 14 is formed by continuously spinning a hot-melt synthetic resin, and the fiber 14 is collected while being stretched. A spunbonding method in which fibers 14 are combined by forming on a net and pressurized with a hot roll to form a nonwoven fabric 13, and when hot-melt synthetic resin is discharged from a spinneret, it is spun with high-temperature air and collected. When the synthetic resin is dissolved in a low-boiling solvent such as methylene chloride, chlorofluorocarbon, and the like, and the fibers 14 are spun in a heated and pressurized state by bonding the heated fibers 14 to form the nonwoven fabric 13. At the same time, the low-boiling solvent is volatilized, the fibers 14 are accumulated on a collection net, pressed by a hot roll, and the fibers 14 are bonded to form a nonwoven fabric 13. A plurality of synthetic resins having different melting points are used. A fiber bond method or thermal bond in which a synthetic resin having a higher melting point is melted to form a fiber 14, and the nonwoven fabric 13 is formed by adhering the fiber 14 using the molten synthetic resin having a lower melting point as a binder. You may use the nonwoven fabric 13 manufactured by the method etc. When the nonwoven fabric 13 is formed on the roll 1, it is strong against repeated contact of the surface to be cleaned and the fibers 14 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 durability of the roll 1 is improved.

  The selection of the nonwoven fabric 13 used for the roll piece 4 is appropriately determined in consideration of the ambient temperature in which the roll 1 is used, the use conditions such as the properties of the liquid absorbed by the roll portion 2, the cost, etc. It is.

  Next, a method for removing the liquid from the surface to be cleaned by the roll 1 according to the first embodiment of the present invention will be described with reference to FIG. The roll 1 is used for removing oil adhering to the steel plate.

  Rolls 1 are installed in a pair of upper and lower boxes on a box-shaped steel plate washer (not shown), and are driven to rotate with a certain pressure applied between them. A steel plate with oil on the surface passes between the upper and lower rolls 1. To do. The steel plate to which the oil component is attached contacts the roll unit 2, and the oil component is washed away from the end surface by the dam function of the roll 1 into the steel plate washing machine and removed. Due to the sucking and discharging function, the fibers 14 are sucked up by the capillarity of the fibers 14 included in the roll piece 4 made of the nonwoven fabric 13 constituting the roll part 2 and discharged into the gap of the roll part 2. While repeating the operation of the intake / exhaust function as described above, oil gradually accumulates inside the roll portion 2.

  A rotary joint (not shown) is connected to the screw part 12 formed on the joint part A8 and the joint part B9, and a vacuum pump (not shown) is connected to the rotary joint via a pipe (not shown). Articulated. Then, by operating the vacuum pump and expressing the suction force, the oil component absorbed by the roll unit 2 passes through a plurality of suction holes 11 provided in a staggered manner on the outer periphery of the main body unit 7 as shown by the arrows. It flows into the opening 10, passes through the hollow joint portion A <b> 8, and the joint portion B <b> 9 and is discharged to the outside of the roll 1. The oil discharged to the outside of the roll 1 passes through a pipe and is discharged to a cleaning tank (not shown) of a steel plate cleaning machine by a separator provided in a vacuum pump.

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

  Since the pedestal 3 is formed in a hollow shape so as to penetrate therethrough, the joint part A8 and the joint part B9 connected to both ends of the main body part 7 can both be connected to the vacuum pump via a pipe. it can. Therefore, since the oil component absorbed by the roll unit 2 can be simultaneously sucked from both ends of the pedestal 3, the oil component absorbed by the roll unit 2 can be reduced by the arrow without causing a variation in the suction force. As described above, the suction holes 11 can be quickly and uniformly sucked and discharged to the outside of the roll 1. Therefore, the liquid absorption saturation state of the roll part 2 is eliminated, and the service life of the roll 1 can be prolonged.

  Further, since the joint portion A8 and the joint portion B9 constituting the pedestal 3 are both hollow, there is no weight difference at both ends of the pedestal 3, and the rotation balance of the roll 1 is maintained. Therefore, since the roll part 2 is slidably contacted with a steel plate, oil can be uniformly removed from the steel plate, exploited, and washed.

  Furthermore, since the vicinity of both ends of the main body portion 7 constituting the pedestal 3 is formed with an inclination angle θ, the oil component sucked from the roll portion 2 to the main body portion 7 through the suction hole 11 is Without staying in the opening 10 formed in the main body 7, it flows into the hollow joint A <b> 8 and the joint B <b> 9 along the inclined surfaces formed at both ends of the main body 7. It is discharged outside.

  Moreover, since the roll part 2 is formed by laminating a plurality of substantially annular roll pieces 4 made of the nonwoven fabric 13 on the outer periphery of the main body part 7, the main body part of the roll piece 4 according to the purpose of use of the roll 1. By adjusting the number of stacked layers corresponding to 7, the hardness of the surface of the roll part 2 can be arbitrarily set.

(Example 2)
FIG. 4 is a cross-sectional view of a roll in the second embodiment of the present invention. Detailed description of the same members as those in the first embodiment is omitted.

  In FIG. 4, the roll 21 includes a pedestal 23, a stopper 25, a plate 26, a plurality of roll pieces 24, and a roll portion 22 including a reinforcing member 33 having a smaller rotating outer diameter than the roll piece 24. 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 is hollow, and a threaded portion 32 to which a rotary joint (not shown) is connected is formed at one end of each. The roll part 22 is formed by laminating a roll piece 24 made of a nonwoven fabric and a reinforcing member 33 having a smaller rotation outer diameter than the roll piece 24 on the outer periphery of the main body part 27 constituting the pedestal 23, and overlapping each other. It is formed by being sandwiched by a metal fitting 25 and a plate 26 from both sides. A snap ring is used for the fastener 25.

  A plurality of circular suction holes 31 are arranged in a staggered manner on the outer periphery of the main body 27 constituting the pedestal 23. Further, in the vicinity of the end portion of the main body portion 27, a change-over portion is formed with an inclination angle so that the opening area of the opening portion 30 is smaller than the opening area of the central portion of the main body portion 27. .

  The reinforcing member 33 has a rotation outer diameter smaller than that of the roll piece 24, and the material, shape, and the like are not particularly limited as long as the reinforcing member 33 does not deteriorate due to swelling or the like by the liquid absorbed by the roll portion 22. As the reinforcing member 33, for example, a flat nonwoven fabric, a woven fabric, 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, a non-woven fabric having voids through which liquid can easily penetrate is used. The porosity of the nonwoven fabric is preferably 5% or more and 50% or less in consideration of strength and the like. Moreover, if the cost of the reinforcing member 33 is lower than that of the roll piece 24, the cost of the roll 21 can be suppressed.

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

  Since the pedestal 23 is formed in a hollow shape so as to penetrate therethrough, both the joint portion A28 and the joint portion B29 connected to both ends of the main body portion 27 can be connected to the vacuum pump via a pipe. it can. Therefore, since the liquid absorbed by the roll unit 22 can be simultaneously sucked from both ends of the pedestal 23, the liquid absorbed by the roll unit 22 is not generated without variation in the vacuum suction force. As indicated by the arrow, the suction can be quickly and uniformly sucked through the suction hole 31 and discharged to the outside of the roll 21. Therefore, the liquid absorption saturation state of the roll part 22 is eliminated, and the service life of the roll 21 can be prolonged.

  Further, since the joint portion A28 and the joint portion B29 constituting the pedestal 23 are both hollow, there is no weight difference at both ends of the pedestal 23, and the rotation balance of the roll 21 is maintained. Therefore, since the roll part 22 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.

  Further, since the change-over portion is formed in the vicinity of both end portions of the main body portion 27 constituting the base 23 with an inclination angle, the main body portion 27 is sucked from the roll portion 22 through the suction hole 31. The liquid flows into the joint A28 and the joint B29 along the inclined surfaces formed at both ends of the main body 27 without staying in the opening 30 formed in the main body 27, and It is discharged outside.

  Moreover, since the roll part 22 is formed by laminating a plurality of substantially annular roll pieces 24 made of a nonwoven fabric, the number of laminated layers of the roll piece 24 on the base 23 is adjusted according to the purpose of use of the roll 21. Thereby, the hardness of the surface of the roll part 22 can be set arbitrarily.

  Furthermore, since the roll member 22 is laminated with the reinforcing member 33 having a smaller rotation outer diameter than the roll piece 24, the surface portion of the roll portion 22 has a lower hardness than the core portion and is soft. The elasticity of 21 is improved, the contact area between the roll part 22 and the surface to be cleaned is increased, and the liquid removal performance from the surface to be cleaned of the roll 21 is improved. Further, since the core portion of the roll portion 22 is harder and harder than the surface portion, the roll piece 24 is not displaced from the main body portion 27 during the rotation of the roll 21, and the surface portion of the roll portion 22 is not displaced. Since the unevenness is suppressed, the roll 21 can maintain high durability.

  The roll of the present invention is excellent in addition to the purpose of removing, squeezing, and cleaning liquids such as moisture, oil, or chemical components adhering to the surface to be cleaned made of a steel plate, non-ferrous metal plate, resin plate, or film. As a roll requiring durability, it can be used widely and suitably.

The front view of the roll in 1st Example of this invention Sectional drawing of the roll in 1st Example of this invention A perspective view of the roll piece seen from the front side Sectional drawing of the roll in 2nd Example of this invention

Explanation of symbols

1, 21 Roll 2, 22 Roll part 3, 23 Pedestal 4, 24 Roll piece 5, 25 Fastener 6, 26 Plate 7, 27 Main body part 8, 28 Joint part A
9, 29 Joint B
DESCRIPTION OF SYMBOLS 10, 30 Opening part 11, 31 Suction hole 12, 32 Screw part 13 Nonwoven fabric 14 Fiber 15 Hole part 16 Side edge part 33 Reinforcement member

Claims (2)

  In a roll for removing, squeezing, and cleaning liquids such as moisture, oil, or chemical components adhering to the surface to be cleaned made of a steel plate, non-ferrous metal plate, resin plate, or film, the roll has a roll portion and a pedestal. And the pedestal has a main body part, a joint part A and a joint part B connected to both ends of the main body part, and is formed to penetrate through a hollow shape having an opening, The roll part made of a nonwoven fabric is formed on the outer periphery, and a suction hole communicating with the opening is formed, and the opening area of the opening is near the end of the main body. The roll is characterized in that an exfoliation part is formed so as to be smaller than the opening area of the central part of the part.   In a roll for removing, squeezing, and cleaning liquids such as moisture, oil, or chemical components adhering to the surface to be cleaned made of a steel plate, non-ferrous metal plate, resin plate, or film, the roll has a roll portion and a pedestal. And the pedestal has a main body part, a joint part A and a joint part B connected to both ends of the main body part, and is formed to penetrate through a hollow shape having an opening, The roll part is formed on the outer periphery, and a suction hole communicating with the opening part is formed, and the opening area of the opening part is the center of the body part in the vicinity of the end part of the body part. The change-over part is formed so as to be smaller than the opening area of the part, and the roll part has a plurality of substantially annular roll pieces made of nonwoven fabric on the outer periphery of the main body part, and a rotating outer diameter from the roll piece. Reinforcement member with small Roll, characterized in that are formed are.

Images