JP5279067B2 - Roll draining method and roll used in this draining method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively provide a draining method of a roll and the roll capable of surely removing, squeezing and washing the liquid attached to a washed face for a long period, and coating the washed face with the liquid at low costs. <P>SOLUTION: In this draining method of the roll 1 comprising a draining function constituted by the roll 1 provided with a seat 3 having the main body portion 7, and a joint portion A8 and a joint portion B9 connected with both ends of the main body portion 7, and a roll portion 2 disposed at an outer periphery of the main body portion 7 and composed of non-woven fabric, and a compressor 11 communicated with at least one of the joint portion A8 and the joint portion B9 through a pipe 10, the compression fluid is delivered to the seat 3 from the compressor 11, and the liquid absorbed to the roll portion 2 is discharged to the external with the compression fluid by utilizing a pressure of the compression fluid. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to the removal, extraction, cleaning of liquid 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, and moisture, oil content on the surface to be cleaned. Alternatively, the present invention relates to a method for draining a roll for applying a liquid such as a chemical component, and a roll used for this draining method.

  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 achieved by rotating the roll while applying a certain pressure such as air pressure or hydraulic pressure to the both ends of the surface to be cleaned. In the compression zone where the dam function is washed away and the roll is compressed by pressure while rotating, the liquid absorbed in the gap of the roll is once released to the surface to be cleaned, and then the roll is released from compression by pressure In the open zone, it is composed of a sucking and discharging function in which the liquid on the surface to be cleaned is sucked up into the roll part by the capillary action of the fibers forming the nonwoven fabric and released into the gap part of the roll 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.

  Also, a shaft body provided with a through hole and a cavity, a roll body having a number of porous holes for capillary action and water absorption provided in the shaft body, and a vacuum connection piping system provided in the communication hole of the shaft body In a draining method for sucking and draining the fluid of the object to be processed by vacuum suction using a liquid suction roll comprising: a water film formed on the inner wall surface of the cavity, a layered water film, a water wall, etc. The drainage function of the high-speed liquid-absorbing roll is designed to restore the drainage function by vacuum suction by breaking the basin with accelerated suction by intermittent forced introduction of external gas and opening the inner wall through-hole. There is a recovery method and a drainage device (Patent Document 3).

Japanese Patent Application Laid-Open No. 61-262586 JP-A-7-120145 Japanese Patent No. 3224461

  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, it has been necessary to newly introduce an external device such as a suction pump, which has a problem of increasing the capital investment cost.

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

  The method for recovering the drainage function of the high-speed liquid-absorbing roll of Patent Document 3 and the drainage device need to be provided with a converging portion in the hollow portion of the shaft body, or to provide an umbrella-like spacer, etc. Therefore, the production of the shaft main body is difficult and time-consuming, leading to a problem that the cost of the roll main body is increased.

  The present invention solves the above-described conventional problems, and is a roll capable of reliably removing, exploiting, cleaning, and applying a liquid to a surface to be cleaned over a long period of time. The purpose is to provide a draining method and the roll at a low cost while keeping costs down.

In order to solve the above-mentioned conventional problems, the method of draining a roll according to the invention of claim 1 is characterized in that water, oil, or chemical components adhering to a surface to be cleaned comprising a steel plate, non-ferrous metal plate, resin plate, or film form. In a roll for removing liquid such as liquid, exploiting, cleaning, and applying a liquid such as moisture, oil, or chemical components to the surface to be cleaned, a main body and a joint A connected to both ends of the main body And a pedestal having a joint part B, a roll in which a roll part made of a nonwoven fabric is formed on the outer periphery of the main body part, and a compressor communicated with at least one of the joint part A or the joint part B via a pipe. A roll draining method having a draining function constituted and having the drainage function, wherein the roll draining method uses the pressure of the compressed fluid by sending the compressed fluid to the pedestal by the compressor. In this method, the liquid absorbed by the roll part is discharged together with the compressed fluid to the outside, and the joint part A and / or the joint part B to which the pipe is mounted and the hollow part in the main body part And a plurality of fluid discharge enlarged groove portions are formed on the outer periphery of the main body portion, and a hole portion communicating with the hollow portion is formed at a position where the plurality of fluid discharge enlarged groove portions intersect. And the compressed fluid flows from the compressor through the pipe into the hollow portion in the order of the joint portion A and / or the joint portion B and the main body portion, and enters the hollow portion on the outer periphery of the main body portion. use the roll together and configured to be discharged to the outside together with the absorbed liquid to the roll portion flows out into the roll unit through the fluid discharge expansion groove and the hole is formed so as to communicate For example, when the roll is inactive, the compressed fluid is ejected from the compressor toward the hollow portion, and when the hollow portion is filled with the compressed fluid, the compressed fluid is transferred from the hole formed on the outer periphery of the main body portion to the roll portion. Spills towards And the liquid absorbed by the roll part is discharged | emitted to the exterior of a roll with a compressed fluid. Therefore, the roll portion made of non-woven fabric always maintains a space for absorbing the liquid sucked up by the roll suction / discharge function, so that the liquid absorption saturation state of the roll portion is suppressed, and the roll is cleaned over a long period of time. The liquid adhering to the surface can be reliably removed, exploited and washed.

  When applying the liquid to the surface to be cleaned, the liquid can be reliably applied to the surface to be cleaned by discharging the compressed fluid from the compressor to the hollow part during the operation of the roll. can do.

  In addition, even when a highly viscous liquid and / or metal powder such as iron powder or aluminum powder adheres to the surface of the roll part and the surface of the roll part is clogged, the intake / exhaust function is hindered. In addition to the compressed fluid and liquid discharged from the inside of the roll unit, high-viscosity liquid adhering to the surface of the roll unit and / or foreign matter of metal powder such as iron powder and aluminum powder is also removed from the surface of the roll unit. The That is, the high-viscosity liquid is dissolved and pushed away in the liquid discharged from the roll portion, and the metal powder is removed by the spraying force of the compressed fluid. For this reason, the roll can exhibit the function of sucking and discharging over a long period of time, leading to an improvement in the service life of the roll.

  The compressed fluid injected into the hollow portion may be introduced from a compressor connected to a cylinder that applies pressure such as air pressure or hydraulic pressure to the roll. For this reason, it is not necessary to newly prepare an external device such as a suction pump, which leads to a reduction in equipment investment cost and can provide a roll at a low cost.

Further, the compressed fluid flowing out from the hollow portion to the roll portion through the hole portion flows into the roll portion through the fluid discharge enlarged groove portion. Therefore, the compressed fluid flows into the roll portion evenly compared to the case where a pedestal in which only the hole portion is formed without using the fluid discharge enlarged groove portion on the outer periphery of the main body portion is used. The function of discharging the liquid from the roll part is improved.

  In addition, since the compressed fluid uniformly flows into the roll part, the time when the liquid absorbed by the roll part is discharged to the outside can be shortened, and the liquid in the roll part can be spread over the entire area of the roll part. , More uniform discharge.

Role of the invention of claim 2, particularly in a roll of claim 1, the roll unit is intended to roll strips of a plurality of Gaien annular consisting nonwoven on the outer periphery of the body portion are formed by laminating, roll Depending on the purpose of use, the hardness of the surface of the roll part can be arbitrarily set by adjusting the number of stacked layers on the main body part of the roll piece. 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.

  According to the first aspect of the present invention, the roll drainage method reliably removes the liquid adhering to the surface to be cleaned, squeezes, cleans and applies the liquid to the surface to be cleaned over a long period of time. Can do. In addition, the service life of the roll can be improved. Furthermore, a roll can be provided at low cost.

In addition, the function of discharging the liquid from the roll unit is improved, and the time for discharging the liquid from the roll unit can be shortened.

The roll of the invention of claim 2 can arbitrarily set the hardness of the surface of the roll part by adjusting the number of laminated layers on the main body part of the roll piece according to the purpose of use 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 drainage device used in the method for draining a roll according to the first embodiment of the present invention, FIG. 2A is a partial front view of a main body constituting a pedestal, and FIG. ) Is a perspective view of the roll piece seen from the front side, and FIG. 3 is a sectional view of the roll in the first embodiment of the present invention.

  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 body portion 7 having the roll portion 2 formed on the outer periphery thereof, and the joint portion A8 connected to one end portion of the body portion 7 are hollow, and the body portion The joint portion B9 connected to the other end of 7 is solid. 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.

  A rotary joint 12 is connected to one end of the joint portion A8, and a pipe 10 connected to the compressor 11 is attached to the rotary joint 12, and the drainage device used in the drainage method for the roll 1 of the present invention. Is configured. A configuration in which the pipe 10 connected to the compressor 11 is directly connected to one end of the joint portion A8 and / or the joint portion B9 without providing the rotary joint 12 can also be adopted.

  2A and 3, the main body 7 constituting the pedestal 3 is formed by spirally winding two fluid discharge enlarged groove portions 14 having different inclination directions on the outer periphery. A plurality of circular holes 13 are formed in a staggered manner at the intersections of the fluid discharge enlarged groove portions 14. The hole portion 13 communicates with the hollow portion 19 of the main body portion 7. Further, the joint portion A8 is provided with a hollow portion 19, and at one end thereof is formed a screw portion 20 to which the rotary joint 12 is connected, and the other is one end portion of the main body portion 7. It is connected to. One end portion of the solid joint portion B9 is also connected to the other end portion of the main body portion 7, so that the base 3 is configured.

  In addition, the form with respect to the outer periphery of the main-body part 7 of the fluid discharge | emission expansion groove part 14 is not limited helically, For example, you may form substantially parallel to the axial center direction of the base 3, or an annular | circular shape. Absent. If the compressed fluid is delivered, the set position of the hole 13 is not limited to the intersection of the two fluid discharge enlarged grooves 14, but can be provided at an arbitrary position of the fluid discharge enlarged grooves 14. Besides the circular shape, the shape 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.

  Further, only the hole 13 may be provided without forming the fluid discharge enlarged groove 14 on the outer periphery of the main body 7. When only the hole portion 13 is formed on the outer periphery of the main body portion 7, it is not necessary to form the fluid discharge enlarged groove portion 14, so that the main body portion 7 can be easily manufactured and the manufacturing cost of the roll 1 can be reduced. it can.

  In FIG. 2B, the roll piece 4 is composed of a substantially annular non-woven fabric 15 having a hole 17 at the center and an end 18 on the outer periphery. The nonwoven fabric 15 has a plurality of fibers 16. 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 portion 7 having a hollow portion 19 in which a hole portion 13 and a fluid discharge enlarged groove portion 14 are formed on the outer periphery is prepared. Next, the hollow joint portion A8 having the hollow portion 19 and the solid joint portion B9 are inserted into both end portions of the main body portion 7 and press-fitted or shrink-fitted, and welded to form the base 3. . 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 15 having a plurality of fibers 16 is prepared, and the non-woven fabric 15 is made of a Thomson type or a laser cutter or the like, and a generally annular roll piece 4 having a hole 17 and an end 18 is provided. Punch out. Next, a plurality of roll pieces 4 are overlapped so that the hole portion 17 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 it for a predetermined time, the internal stress of the plurality of roll pieces 4 overlapped is made uniform, the end 18 is cut and polished, and the roll part is formed on the outer periphery of the main body part 7 constituting the base 3. 2 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 pedestal 3, the roll portion 2 is configured by forming a flat nonwoven fabric 15 on the outer periphery of the main body portion 7. It can also be formed by wrapping around.

  The outer diameter of the hole 13 and the width and depth of the fluid discharge enlarged groove 14 are not particularly limited. For example, the outer diameter of the hole 13 is about 1 to 8 mm, and the width of the fluid discharge enlarged groove 14. Is preferably set to about 2 to 10 mm and the depth is set to about 0.1 to 3 mm. If the outer diameter of the hole 13 is less than 1 mm, the diameter is too small to efficiently flow the compressed fluid to the roll part 2, and if it exceeds 8 mm, the diameter is too large and the compressed fluid per hole The jetting force is weakened. Further, when the width of the fluid discharge enlarged groove portion 14 is less than 2 mm, the compressed fluid cannot flow efficiently because the width is too narrow, and when it exceeds 10 mm, it is too wide to form the fluid discharge enlarged groove portion 14. Become. When the depth of the fluid discharge enlarged groove 14 is less than 0.1 mm, the compressed fluid cannot flow efficiently because it is too shallow. When it exceeds 3 mm, it takes too much time to form the fluid discharge enlarged groove 14.

  Next, some methods for manufacturing the nonwoven fabric 15 constituting the roll piece 4 will be described.

  In the first method, a plurality of fibers 16 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 15 is obtained. The above manufacturing method is generally called needle punching. The cloth-like body is called a web. The obtained nonwoven fabric 15 is impregnated in a polyurethane solution, and the nonwoven fabric 15 is filled with polyurethane. Next, the nonwoven fabric 15 filled with polyurethane is immersed in water, carbon dioxide is injected into the water, and carbonic acid foaming is performed, whereby a flat plate made of the nonwoven fabric 15 and a porous polyurethane having extremely fine bubbles is formed. Form a double structure. For the fibers 16 forming the nonwoven fabric 15, 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 16 are accumulated in a flat plate shape to form a web that becomes a cloth-like body, and a nonwoven fabric 15 entangled three-dimensionally by needle punching is obtained. With respect to the obtained nonwoven fabric 15, a polymer elastic body blended with a crosslinking agent is attached using a method such as spraying, dipping, impregnation and the like, and the fibers 16 forming the nonwoven fabric 15 are bonded by heating. The nonwoven fabric 15 obtained by the above manufacturing method is generally called a chemical bond method nonwoven fabric. For the fibers 16 forming the nonwoven fabric 15, 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 16 is entangled. Next, a non-woven fabric 15 obtained by the above-described manufacturing method is formed by adhering a polymer elastic body containing a cross-linking agent to the fibers 16 using a method such as spraying, dipping or impregnation, and heating to form the non-woven fabric 15. 15 is generally called a hydroentangled nonwoven fabric.

  The manufacturing method of the nonwoven fabric 15 shown above is a representative example. In addition to the above, for example, a fiber 16 is formed by continuously spinning a hot-melt synthetic resin, and the fiber 16 is collected while being drawn. A spunbond method in which the fibers 16 are bonded together to form a nonwoven fabric 15 by being accumulated on a net and pressurized with a hot roll, and when a hot-melt synthetic resin is discharged from the 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 and chlorofluorocarbon, which is formed by bonding the heated fibers 16 to form the nonwoven fabric 15, and the fibers 16 are spun in a heated and pressurized state from the spinneret. At the same time, the low-boiling solvent is volatilized, the fibers 16 are accumulated on a collection net, pressed by a hot roll, and the fibers 16 are bonded to form a nonwoven fabric 15; a plurality of synthetic resins having different melting points; A fiber bond method or thermal bond in which a synthetic resin having a higher melting point is spun to form a fiber 16 and the nonwoven fabric 15 is formed by adhering the fiber 16 using the molten synthetic resin having a lower melting point as a binder. You may use the nonwoven fabric 15 manufactured by the method etc. When the nonwoven fabric 15 is formed on the roll 1, it is strong against repeated contact of the surface to be cleaned, and the fibers 16 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 15 used for the roll piece 4 is appropriately determined in consideration of usage conditions such as the atmospheric temperature in which the roll 1 is used, costs, and the like.

  Next, the drainage method of the roll 1 in the first embodiment of the present invention, and the operation and action of the roll 1 used in this drainage method will be described with reference to FIGS. The roll 1 is used for removing oil adhering to the steel plate.

  The roll 1 is installed in a box-shaped steel plate washer (not shown) as a pair, and the compressed fluid is supplied from the compressor 11 through the pipe 10 to both ends of the pedestal 3, that is, the joint part A8 and the joint part B9. It is sent out to a cylinder (not shown) installed, is rotated by being applied with a certain pressure, and a steel plate with oil on its surface passes between the upper and lower rolls 1. The compressed fluid is set to be sent to the cylinder when the roll 1 is in operation, and is provided in the middle of the pipe 10 when oil is discharged from the roll portion 2 when the roll 1 is in rest. The delivery path of the compressed fluid is changed using a cock (not shown) and is set to be delivered to the hollow portion 19. The steel sheet to which the oil component is attached contacts the roll part 2, and the oil content on the surface of the steel sheet is sucked up by the roll part 2 by the capillary phenomenon of the fiber 16 of the roll piece 4 made of the nonwoven fabric 15 constituting the roll part 2. 2 is released into the gap. While repeating the operation as described above, it becomes difficult for the roll part 2 to elastically deform, the suction / discharge function is lowered, and oil gradually accumulates inside, approaching the liquid absorption saturation state, and the oil removal performance is lowered. Will do.

  When the oil removal performance of the roll unit 2 has been lowered, the discharge route of the compressed fluid is changed using a cock (not shown) provided in the middle of the pipe 10 when the operation of the roll 1 is rested. As shown in FIG. 3, the compressed fluid is jetted toward the hollow portion 19 and sent out through the pipe 10 as shown by an arrow. When the compressed portion fills the hollow portion 19, the compressed fluid flows out to the roll portion 2 through the hole portion 13 formed on the outer periphery of the main body portion 7 and the fluid discharge enlarged groove portion 14. And the oil component absorbed by the roll part 2 is discharged | emitted to the exterior of the roll 1 with a compressed fluid. Accordingly, the roll portion 2 made of the nonwoven fabric 15 always has a space for absorbing the oil sucked up by the sucking and discharging function of the roll 1, so that the liquid absorption saturation state of the roll portion 2 is eliminated, and the roll 1 is kept for a long time. In addition, the oil component adhering to the steel plate can be reliably removed.

  Further, even when high viscosity oil and / or iron powder adheres to the surface of the roll part 2 and the surface of the roll part 2 is clogged, thereby impairing the suction / exhaust function, the inside of the roll part 2 Along with the compressed fluid and oil discharged, the highly viscous oil and / or iron powder adhering to the surface of the roll unit 2 is also removed from the surface of the roll unit 2. That is, the high-viscosity oil is dissolved in the oil discharged from the roll unit 2 and is pushed away, and the iron powder is removed by the spraying force of the compressed fluid. For this reason, the roll 1 can exhibit a function of sucking and discharging over a long period of time, leading to an improvement in the service life of the roll 1.

  The compressed fluid injected into the hollow portion 19 is introduced from a compressor 11 connected to a cylinder (not shown) that applies air pressure to the roll 1. For this reason, it is not necessary to newly prepare an external device such as a suction pump, which leads to a reduction in capital investment cost, and the roll 1 can be provided at a low cost.

  Further, the compressed fluid flowing out from the hollow portion 19 to the roll portion 2 through the hole portion 13 flows into the roll portion 2 through the fluid discharge enlarged groove portion 14. Therefore, since the compressed fluid flows uniformly into the roll part 2, the function of discharging oil from the roll part 2 is improved.

  In addition, since the compressed fluid uniformly flows into the roll part 2, the oil content absorbed by the roll part 2 is reduced in time when discharged to the outside.

  Moreover, since the roll part 2 is formed by laminating a plurality of substantially annular roll pieces 4 made of the nonwoven fabric 15 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.

  Next, the oil discharge performance from the roll part 2 of the roll 1 of the present invention was tested in the following manner.

  First, a main body portion 7 having a substantially cylindrical hollow portion 19 made of iron having an outer diameter of 50 mm, an inner diameter of 30 mm, and an overall length of 190 mm is prepared, and a fluid discharge having a width of 3 mm and a depth of 1 mm is provided on the outer periphery of the main body portion 7. Two enlarged groove portions 14 were formed by being spirally wound so as to have different inclination directions, and a plurality of hole portions 13 having an outer diameter of 2 mm were provided at intersections of the fluid discharge enlarged groove portions 14 so as to form a staggered shape. Next, the hollow joint portion A8 having the hollow portions 19 at both ends of the main body portion 7 and the solid joint portion B are shrink-fitted and connected by welding, and the pedestal 3 having a total length of 326 mm is integrated. Formed.

Next, a plurality of generally annular roll pieces 4 having an outer diameter of 130 mm and an inner diameter of 50 mm were extracted from the nonwoven fabric having an apparent density of 0.45 g / cm ³ . And the hole part 17 which the roll piece 4 has is laminated | stacked on the main-body part 7 which comprises the base 3 comprised as mentioned above, and the end part 18 of the roll piece 4 is cut and polished by the thickness of 5mm each. Thus, one roll 1 having a roll portion 2 having an outer diameter of 120 mm, an inner diameter of 50 mm, and a total length of 190 mm was manufactured. In addition, the hardness of the surface of the roll part 2 was set to 60 degrees.

  The roll 1 configured as described above was immersed in a cleaning oil pleton R-303P manufactured by Sugimura Chemical Industry for 24 hours, so that the roll part 2 was saturated with liquid. About 600 cc of cleaning oil was absorbed into the roll unit 2.

  Next, the rotary joint 12 was connected to the end of the joint portion A, and the piping 10 arranged from the compressor 11 was connected to the rotary joint 12, and the compressed fluid was injected into the hollow portion 19. And the quantity of the cleaning oil discharged | emitted from the roll part 2 to the exterior of the roll 1 was calculated by measuring the weight of the roll 1 after 1 hour.

  As a result of the test, when the hollow portion 19 is filled, the compressed fluid flows into the roll portion 2 through the hole portion 13 formed on the outer periphery of the main body portion 7 and the fluid discharge enlarged groove portion 14, and is absorbed by the roll portion 2. The cleaning oil was discharged outside the roll 1. The amount of the cleaning oil discharged was about 590 cc, and almost the entire amount of the cleaning oil absorbed by the roll unit 2 was discharged to the outside of the roll 1, and the roll 1 of the present invention was very excellent. It had oil discharge performance.

(Example 2)
FIG. 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 fastener 25, a plate 26, and a roll portion 22 including a plurality of roll pieces 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 a hollow portion 39, 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 39, and a threaded portion 40 is formed at one end of each of the joint portions B29 because the rotary joint is connected. The roll part 22 is formed by laminating a plurality of roll pieces 24 on the outer periphery of the main body part 27 constituting the pedestal 23 and overlapping them, and is sandwiched between the stoppers 25 and the plate 26 from both sides. It is formed. A snap ring is used for the fastener 25.

  A fluid discharge enlarged groove 34 is formed on the outer periphery of the main body 27 constituting the pedestal 23, and a plurality of circular holes 33 are arranged in a staggered manner in the fluid discharge enlarged groove 34.

  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 39. Both the joint portion A28 and the joint portion B29 are supplied with compressed fluid from a compressor through a pipe. Can be sent out toward the hollow portion 39 of the main body 27. Therefore, since the compressed fluid quickly flows into the hollow portion 39 formed in the main body portion 27, the time for discharging the liquid from the roll portion 22 to the outside is greatly shortened.

  Further, the liquid can be discharged from the roll portion 22 to the outside of the roll 21 more efficiently and reliably.

  The roll of the present invention comprises a steel plate, a non-ferrous metal plate, a resin plate, or a liquid that adheres to the surface to be cleaned, such as moisture, oil, or chemical components, is extracted, washed, and the surface to be cleaned has moisture. In addition to the purpose of applying a liquid such as an oil component or a chemical component, it can be used widely and suitably as a roll that requires excellent durability.

The front view of the drainage apparatus used for the drainage method of the roll in 1st Example of this invention (A) The partial front view of the main-body part which comprises a base, (b) The perspective view which looked at the roll piece from the front side Sectional drawing of the roll in 1st Example of this invention 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 Piping 11 Compressor 12 Rotary joint 13, 33 Hole part 14, 34 Fluid discharge expansion groove part 15 Nonwoven fabric 16 Fiber 17 Hole part 18 End part 19, 39 Hollow part 20, 40 Thread part

Claims (2)

Removal, extraction, cleaning of liquid such as moisture, oil or chemical components adhering to the surface to be cleaned made of steel plate, non-ferrous metal plate, resin plate or film, and moisture, oil or chemical components on the surface to be cleaned In a roll for applying a liquid such as a main body, a base having a joint portion A and a joint portion B connected to both ends of the main body portion, and a roll portion made of a nonwoven fabric are formed on the outer periphery of the main body portion. And a roll drainage method having a drainage function comprising a compressor communicated with at least one of the joint portion A or the joint portion B via a pipe. In the liquid method, the compressed fluid is sent to the pedestal by the compressor, and the liquid absorbed by the roll unit is discharged to the outside together with the compressed fluid using the pressure of the compressed fluid. A method, wherein the joint portion A and / or the joint portion B the pipe is mounted, and the the body portion Yes in the hollow portion is formed, a plurality of fluid discharge enlarged groove on the outer periphery of the body portion And a hole communicating with the hollow portion is formed at a position where the plurality of fluid discharge enlarged groove portions intersect, and the compressed fluid is supplied from the compressor via the pipe to the joint portion. A and / or the joint portion B and the main body portion sequentially flow into the hollow portion through the fluid discharge enlarged groove portion and the hole portion formed on the outer periphery of the main body portion so as to communicate with the hollow portion. A method for draining a roll, wherein the roll is configured to flow out to the roll part and to be discharged to the outside together with the liquid absorbed by the roll part. 2. The roll according to claim 1, wherein the roll part is formed by laminating a plurality of substantially annular roll pieces made of nonwoven fabric on the outer periphery of the main body part.

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