JP6245676B2 - Roll and cleaning equipment - Google Patents

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.

  A conventional roll of this type is a rubber roll having a rubber layer on the peripheral surface of the core roll, and an annular groove extending over the entire circumferential direction on the outer peripheral surface in the vicinity of the roll axial center edge of the rubber layer. And there exists a rubber roll (for example, refer patent document 1) characterized by the outer peripheral surface of the rubber layer between an annular groove and a roll axial direction edge being formed in the rough surface.

Japanese Patent No. 2831938

  The rubber roll of Patent Document 1 has a high friction coefficient between the roll surface and the object because the outer peripheral surface of the rubber layer between the annular groove and the edge in the roll axial direction is a rough surface. It is excellent in power. However, the adhesion between the roll surface formed on the rough surface and the object is low, and there is a problem that the performance of removing the liquid adhering to the object is poor.

  In addition, the outer peripheral surface of the rubber layer between the annular groove and the edge in the roll axis direction is formed into a rough surface, and the friction coefficient between the roll surface and the object is high. Has a short life and has a problem that a rubber roll cannot be used over a long period of time.

  The present invention solves the above-mentioned conventional problems, and an object thereof is to provide a roll that exhibits excellent liquid removal performance over a long period of time, 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, the pedestal has a main body part in which the roll part is formed on the outer periphery, and rotation support parts at both ends of the main body part, The roll part is formed of a non-woven fabric, and the fibers constituting the non-woven fabric are inclined in a direction in which the non-woven fabric is inclined with respect to the object. A surface state in which the friction coefficient becomes large depending on the rotation direction when it is brought into contact with the object, and a surface state in which the friction coefficient becomes small, and the roll unit has a small friction coefficient in the conveyance direction of the object. Surface condition And abuts against the object in the direction of rotation, the surface of the roll section to improve the adhesion between the object, abutting on the object by the rotation direction of the surface state of the friction coefficient is large Compared to the case, the contact area with the object is widened, and the liquid is sucked up by the capillary action of the fibers constituting the nonwoven fabric by elastic deformation, and the roll part is ground and / or polished. Thus, when the roll rotates and comes into contact with the object, a direction in which the fibers constituting the nonwoven fabric tilt with respect to the object and a direction to stand up are formed. The direction in which the fiber tilts with respect to the object is generally referred to as order, and when the roll rotates and the roll portion comes into contact with the object, the friction coefficient is small and the frictional resistance is reduced. On the other hand, the direction in which the fibers stand up with respect to the object is generally called a reverse eye. When the roll rotates and the roll part comes into contact with the object, the friction coefficient is large and the frictional resistance is amplified.

The roll of the invention of claim 2 is a roll for removing, exploiting, and washing 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 part and a pedestal, and the roll has a roll part and a pedestal, the main part having the roll part formed on the outer periphery, and the roll The roll part is formed of a non-woven fabric at both ends of the main body, and the fibers constituting the non-woven fabric are tilted in a direction tilting with respect to the object. The surface state of the outer peripheral surface has a surface state in which the friction coefficient becomes large depending on the rotation direction when the roll is brought into contact with the object, and a surface state in which the friction coefficient becomes small. Of the object Against feeding direction, and abuts against the object in the direction of rotation of the surface state of the friction coefficient is small, to improve the adhesion between the object and the surface of the roll portion, the surface friction coefficient is large Compared with the case where it contacts the object in the rotating direction of the state, the contact area with the object is widened , and the surface hardness is in the range of 40 ° to 90 °. As for the roll of this invention, a roll part contact | abuts a target object in the rotation direction of the surface state in which a friction coefficient becomes small. That is, it is installed in the cleaning device so that the order is in contact with the object. Therefore, since the fibers located on the surface of the roll part are tilted and contacted with the object, the adhesion between the surface of the roll part and the object is improved as compared with the case where the reverse eye where the fibers stand up contacts the object. In addition, the contact area is widened. Therefore, since the dam function in which the roll part dams and removes the liquid adhering to the object is efficiently and reliably exhibited, the liquid removing performance is good.

  The surface state of the roll part before and after grinding and polishing will be described with reference to FIGS.

  FIG. 4A is an enlarged view of the surface of the roll part before grinding and polishing. A plurality of fibers 14 constituting the nonwoven fabric 13 protrude from the surface of the roll part 2 and have irregularities.

  FIG. 4B is an explanatory diagram when the surface of the roll portion is ground and polished using a grinding / polishing tool while rotating the roll. The roll rotates on the lathe, and the grinder 15 which is a grinding / polishing tool rotating in the direction of the white arrow slidably contacts the surface of the roll portion 2, and the fibers 14 protruding from the nonwoven fabric 13 are cut, and the roll portion 2 The surface is ground and polished.

  FIG. 4C is an enlarged view of the surface of the roll part after grinding and polishing. The surface of the roll unit 2 is smooth when a grinding / polishing tool such as a grinder 15 is in sliding contact with the grinding / polishing tool. Since it will be released from pressure when it leaves | separates from the surface of the part 2, while the front-end | tip of the fiber 14 which comprises the nonwoven fabric 13 will restore | restore, the clearance gap part 16 will arise slightly between the front-end | tips of the adjacent fiber 14, and roll part 2 The surface of is substantially smooth.

  Therefore, when the roll is installed in the cleaning device and the roll unit 2 comes into contact with the object, the tip of the fiber 14 tilts in the direction in which the tip of the fiber 14 tilts (direction of arrow A) and the tip of the fiber 14 stands up. The direction (direction of arrow B) occurs. When the fiber 14 stands up (in the direction of arrow B), that is, when the roll rotates in the direction of arrow A, a gap is generated between the roll portion 2 and the object, resulting in poor adhesion, and the liquid adhering to the object. If the roll rotates in the direction in which the fiber 14 tilts (in the direction of arrow A), that is, the direction of arrow B, the adhesion between the roll part 2 and the object is improved and good liquid removal is achieved. Performance is demonstrated.

  Further, since the fibers are tilted against and contacted with the object, it is possible to prevent the fibers from falling off, which leads to an increase in the service life of the roll.

The roll of the invention of claim 3 is the roll of claim 1 or 2 , particularly, wherein the base portion of the pedestal has an opening, and a hole communicating with the opening is formed on the outer periphery. A rotation support portion at least at one end is formed with a hollow portion, the hollow portion is in communication with the opening portion, and a connection portion is formed at the end portion. By connecting an external device such as a vacuum pump or a compressor via the external device and operating the external device, the liquid absorbed in the roll portion can be discharged to the outside, and the durability of the roll can be improved. it can.

  The function of removing liquid from the object is to remove the liquid by contacting the object with the liquid in contact with the roll part of the rotating roll while applying a constant pressure such as air pressure or hydraulic pressure via a compressor. In the dam function that drains away from both ends of the object and the compression zone where the roll part rotates and contacts the object and is compressed by pressure, the liquid absorbed in the gap of the roll part is once released to the object Then, in the open zone where the roll part is released from the compression by pressure, the suction / discharge function comprising a mechanism in which the liquid of the object is sucked 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 It consists of and. 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 roll part is elastically deformed, the porosity of the roll part becomes 0% in the compression zone and is restored to the original porosity in the open zone, and the restored void part is sucked up by the capillary action of fibers. This function is manifested by the liquid being released. In order to increase the durability of the roll, it is necessary to eliminate the liquid absorption saturation state inside the roll portion and always ensure a gap through which the liquid is discharged.

  For example, when the roll is connected to a vacuum pump, the liquid absorbed in the roll part is quickly and surely sucked into the hole part by the vacuum suction force, and after passing through the opening part and the hollow part, the rotary joint, piping, etc. To the outside of the roll. In addition, when the roll is connected to the compressor, the compressed fluid flows through the pipe, the rotary joint, etc., through the hollow portion and the opening portion, then flows from the hole portion to the roll portion, and the liquid absorbed in the roll portion is compressed fluid. At the same time, it is efficiently and reliably discharged outside the roll. In both cases, since the liquid absorption saturation state of the roll part is eliminated, the durability of the roll is improved.

  A cleaning device according to a fourth aspect of the present invention comprises at least the roll according to any one of the first to third aspects and a driving means for rotationally driving the roll, and has an excellent liquid removal performance over a long period of time. Is provided.

In the roll of the invention of claim 1 or 2 , the dam function is efficiently and surely exhibited, so that the liquid removal performance is improved and the fibers are prevented from falling off, leading to a long life of the roll.

In the roll of the invention of claim 3 , the suction / exhaust function is exhibited quickly and reliably, so that the durability of the roll is improved.

  The cleaning apparatus of the invention of claim 4 can exhibit excellent liquid removal performance over a long period of time.

It is a front view of the roll of Example 1. It is XX sectional drawing of FIG. It is the perspective view which looked at the roll piece from the front side. (A) An enlarged view of the surface of the roll part before grinding and polishing, (b) An explanatory diagram when grinding and polishing the surface of the roll part using a grinding / polishing tool while rotating the roll (c) grinding, It is an enlarged view of the surface of the roll part after grinding | polishing. It is sectional drawing of the roll of Example 2. FIG. (A) The top view of the roll piece laminated | stacked on the vicinity of the both ends of a main-body part, (b) The top view of the roll piece laminated | stacked on the vicinity of the approximate center part of a main-body part. FIG. 6 is a left side view of FIG. 5. It is explanatory drawing of the washing | cleaning apparatus by which the roll of Example 1 was mounted. It is the elements on larger scale at the time of rotation of the roll of FIG. It is explanatory drawing of the washing | cleaning apparatus by which the roll of Example 2 was mounted.

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

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

  1 and 2, the roll 1 includes a pedestal 3, a stopper 5, a plate 6, and a roll portion 2 including a plurality of roll pieces 4. The pedestal 3 is made of a metal material such as iron, SUS, or aluminum, and is formed of a solid body portion 7 having a roll portion 2 formed on the outer periphery thereof, and a rotation support portion 8 connected to both ends of the body portion 7. Yes. 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. The stopper 5 is a snap ring. In the present embodiment, the pedestal 3 is solid, but may be hollow. Further, the rotation support portion may be a rotation support hole, although not particularly illustrated, in addition to the form of a rotation support rod like the roll 1 of the present invention.

  In FIG. 2, a key 9 having a substantially square cross section is installed at two positions on the outer periphery of the main body portion 7 in the axial direction and fixed with screws (not shown). The key 9 is made of a metal material such as iron, SUS, or aluminum.

  2 and 3, the roll piece 4 constituting the roll portion 2 is formed in a substantially annular shape having a side edge portion 11 on the outer periphery and a hole portion 12 on the center, and is divided into two portions on the inner periphery equally. A groove portion 10 is formed in the upper portion. The roll piece 4 is made of a nonwoven fabric 13 having a plurality of fibers 14. As shown in FIG. 2, the roll piece 4 inserts the hole portion 12 into the outer periphery of the main body portion 7, and the two groove portions 10 are fitted into the two keys 9 to prevent the roll 1 from rotating.

  When the hole 12 of the roll piece 4 is fitted and inserted into the outer periphery of the main body 7, the roll surface 2 has a lower surface hardness if the number of the roll pieces 4 is small, and the roll piece 4 is large if the number of the roll pieces 4 is large. The hardness of the surface of the part 2 can be increased, and the desired hardness of the roll part 2 can be set by adjusting the number of stacked roll pieces 4. The hardness of the surface of the roll part 2 is preferably set to about 40 ° to 90 °. When the hardness is less than 40 °, the hardness is too low, and when the end surface of the object repeatedly comes into contact with the roll part 2, the roll part 2 is worn early. On the other hand, when the hardness exceeds 90 °, the hardness is too high, the air permeability of the liquid inside the roll part 2 is poor, and the liquid absorbency is poor. 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.

  As a method for forming the roll part 2, the nonwoven fabric 13 may be wound around the outer periphery of the main body part 7 in addition to the method of laminating the roll piece 4 described above on the outer periphery of the main body part 7. Moreover, the roll part 2 may be formed by spirally winding the nonwoven fabric 13 around the outer periphery of the main body part 7.

  Next, some methods for manufacturing the nonwoven fabric 13 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, thereby forming a flat plate made of the nonwoven fabric 13 and a porous polyurethane having extremely fine bubbles. 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, impregnation, and the like, and the fibers 14 forming 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 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 melts and spins a synthetic resin such as a polyamide resin, a polyester resin, a polyethylene resin, or a polypropylene resin, and entangles the fiber 14 by injecting a high-pressure water flow of about 100 to 150 kgf to the obtained synthetic fiber. Combine. 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 a melt blow method in which the heated fibers 14 are bonded to form the nonwoven fabric 13 and methylene chloride or chlorofluorocarbon is heated, and the fibers 14 are spun in a heated and pressurized state from the spinning port. 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.

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

  First, the pedestal 3 is prepared in which the rotation support portion 8 is connected to both ends of the main body portion 7 and the key 9 is fixed to the outer peripheral equal part of the main body portion 7. Next, a flat nonwoven fabric 13 is prepared, and the nonwoven fabric 13 is made of a Thomson type or a laser cutter or the like, and has a substantially annular shape having groove portions 10 at two portions on the side edge portion 11, the hole portion 12, and the inner circumference. Punched into a roll piece 4. Next, a plurality of roll pieces 4 were overlapped so that the hole portion 12 penetrated the base 3 and was laminated on the outer periphery of the main body portion 7, and two groove portions 10 were provided at two outer peripheral portions of the main body portion 7. The key 9 is fitted. And after compressing only predetermined length so that desired hardness may be obtained with the press 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 stacked is made uniform, the side edge 11 is cut and / or polished, and the main body 7 constituting the base 3 is formed. The roll 1 is manufactured by forming the roll portion 2 on the outer periphery.

  As for the grinding and polishing method of the roll part 2, for example, the roll 1 is mounted on a lathe, and while rotating the roll 1, a grinding / polishing tool such as a blade, a grindstone, a grinder, or sandpaper is slid on the surface of the roll part 2. Let On the surface of the roll part 2 before grinding and polishing, as shown in FIG. 4A, a plurality of fibers 14 constituting the nonwoven fabric 13 protrude and the surface of the roll part 2 has irregularities. In order to smooth the unevenness, as shown in FIG. 4B, the roll 1 rotates on a lathe and a grinder 15 that is a grinding / polishing tool that rotates in the direction of the white arrow slides on the surface of the roll portion 2. The fibers 14 that are in contact with each other and protrude from the nonwoven fabric 13 are cut, and the surface of the roll portion 2 is ground and polished. The surface of the roll portion 2 is smooth when a grinding / polishing tool such as a grinder 15 is in sliding contact with the grinding / polishing tool. 4 is released from the pressure when it is separated from the surface of the roll part 2, the tip of the fibers 14 constituting the nonwoven fabric 13 is restored as shown in FIG. A gap portion 16 is formed in the surface, and the surface of the roll portion 2 is substantially smooth.

  Therefore, as shown in FIG. 4C, when the roll 1 is installed in the cleaning device and the surface of the roll unit 2 comes into contact with the object, the direction in which the tip of the fiber 14 tilts depending on the rotation direction of the roll 1. (Direction of arrow A) and a direction in which the tip of the fiber 14 stands up (direction of arrow B) are generated. The roll 1 of the present invention is installed in a cleaning device so as to rotate the roll 1 in the direction of arrow B so that the tip of the fiber 14 is tilted when the surface of the roll portion 2 comes into contact with the object. In other words, the roll unit 2 abuts on the object in the rotational direction of the surface state in which the friction coefficient is small with respect to the conveyance direction of the object.

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

  The roll 1 has a roll part 2 and a pedestal 3, the pedestal 3 has a main body part 7 on which the roll part 2 is formed on the outer periphery, and rotation support parts 8 at both ends of the main body part 7, and the roll part 2 is a nonwoven fabric. 13 and the surface state of the outer peripheral surface is subjected to grinding and / or polishing so that the friction coefficient increases depending on the rotation direction when the roll 1 is brought into contact with the object. And the roll part 2 is in contact with the object in the rotational direction of the surface state where the friction coefficient is small with respect to the conveying direction of the object. No. 2 is subjected to grinding and / or polishing, whereby a direction (arrow A) in which the fibers 14 constituting the nonwoven fabric 13 are tilted with respect to the object and an upright direction (arrow B) are formed. The direction in which the fibers 14 are tilted with respect to the object is generally referred to as order, and when the roll 1 rotates in the direction of arrow B and the roll part 2 comes into contact with the object, the friction coefficient is small and the friction resistance is It is reduced. On the other hand, the direction in which the fibers 14 stand with respect to the object is generally called a reverse eye, and when the roll 1 rotates in the direction of arrow A and the roll part 2 comes into contact with the object, the friction coefficient is large and the friction The resistance is amplified.

  In the roll 1 of the present invention, the roll portion 2 abuts on the object in the rotational direction of the surface state where the friction coefficient is small. That is, it is installed in the cleaning device so that the order is in contact with the object. Accordingly, since the fibers 14 positioned on the surface of the roll unit 2 are tilted and contacted with the object, the surface of the roll unit 2 and the object of the object are compared with the case where the reverse eye where the fibers 14 stand up contacts the object. Adhesion is improved and the contact area is increased. Therefore, since the dam function in which the roll unit 2 dams and removes the liquid adhering to the object is efficiently and reliably exhibited, the liquid removing performance is good.

  Further, since the fibers 14 can be prevented from falling off, the service life of the roll 1 is prolonged.

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

As an example, two rolls 1 having a roll portion 2 having an outer diameter of 100 mm, an inner diameter of 70 mm, and a total length of 300 mm were manufactured, and the rolls 1 were installed in a pair of upper and lower parts in a cleaning device. When the roll 1 is rotated, the surface of the roll unit 2 is arranged so that the roll contacts the direction of the object in order to rotate in the direction of arrow B. The hardness of the surface part of the roll part 2 was set at 83 °. Next, 30 g / m ² of cleaning oil Preton R-303PX2 (kinematic viscosity 5.0 cSt / 40 ° C.) manufactured by Sugimura Chemical Co., Ltd. is applied to the SUS plate to be the object, and the peripheral speed is 100 m / min. A pressure of a linear pressure of 8 kgf / cm was applied to the rotated roll 1 and pressed, and a SUS plate was passed between the upper and lower rolls 1. It was 2.7 g / m < ² > when the amount of residual oil of the SUS board was measured.

Next, as a comparative example, two rolls 1 having a roll portion 2 having an outer diameter of 100 mm, an inner diameter of 70 mm, and an overall length of 300 mm are manufactured, and the rolls 1 are installed in a pair of upper and lower in a cleaning device, and the roll When rotating 1, the surface of the roll unit 2 was arranged so that the reverse eye abuts against the conveyance direction of the object so as to rotate in the direction of arrow A. The hardness of the surface part of the roll part 2 was set at 83 °. 30 g / m ² of cleaning oil preton R-303PX2 (kinematic viscosity 5.0 cSt / 40 ° C.) manufactured by Sugimura Chemical Co., Ltd. was applied to the SUS plate to be the object, and the peripheral speed was rotated at 100 m per minute. The roll 1 was pressed by applying a linear pressure of 8 kgf / cm, and a SUS plate was passed between the upper and lower rolls 1. It was 4.6 g / m < ² > when the amount of residual oil of the SUS board was measured.

  From the above experimental results, compared to the roll 1 of the comparative example, the roll 1 of the example has good adhesion between the surface of the roll part 2 and the SUS plate, and the dam function acts efficiently and reliably. It was found that the amount of residual oil on the plate was small and the oil removal performance was excellent.

  The roll of Example 2 is demonstrated using FIGS. 5-7.

  5 and 7, the roll 21 includes a pedestal 23, a stopper 25, a plate 26, and a roll portion 22 including a plurality of roll pieces 24 a and 24 b. The pedestal 23 is made of a metal material such as iron, SUS, and aluminum. The pedestal 23 has a roll portion 22 formed on the outer periphery, and is connected to a main body portion 27 having an opening 30 and one end of the main body portion 27 and is hollow. The rotation support portion 28 having the portion 31 and the solid rotation support portion 28 connected to the other end of the main body portion 27 are formed. The roll portion 22 is formed by laminating a plurality of roll pieces 24 a and 24 b on the outer periphery of the main body portion 27 constituting the pedestal 23, and is overlapped with each other, and is sandwiched between the fasteners 25 and the plate 26 from both sides. Is formed. As the fastener 25, a screw-fastened lock nut is used. In this embodiment, one rotation support portion 28 is hollow and the other rotation support portion 28 is solid. However, both rotation support portions 28 may be hollow.

  A plurality of circular holes 33 are formed in a zigzag pattern on the outer periphery of the main body 27 constituting the base 23. The hole 33 communicates with the opening 30 of the main body 27. One rotation support portion 28 is provided with a hollow portion 31, and a connection portion 32 to which a rotary joint (not shown) is connected is formed at one end. The connecting portion 32 is provided with a screw portion 36. The other end of the rotation support part 28 is connected to the end part of the main body part 27 via a joint part 35 by welding. The other rotation support part 28 is solid, and one end is connected to the end part of the main body part 27 via a joint part 35 by welding.

  Further, a gradually changing portion 29 having an inclined surface is formed in the vicinity of the joint portion 35 of the main body portion 27 and one rotation support portion 28. Accordingly, in the vicinity of the main body 27 and the one rotation support portion 28, the opening area of the opening 30 is smaller than the opening area of the substantially central portion of the main body 27. Since the gradual change portion 29 is formed, when the roll 21 is connected to a liquid suction device such as a vacuum pump, the liquid absorbed by the roll portion 22 is opened through the hole 33 by the suction force. Without passing in the vicinity of the joining portion 35, passes through the hollow portion 31, and is discharged to the outside of the roll 21.

  The plate 26 fixed to both ends of the roll portion 22 and the stopper 25 are made of a metal material such as iron, SUS, and aluminum, and are formed in a substantially annular shape, and are formed on the inner periphery of the stopper 25. The threaded portion B38 is fitted and fixed to a threaded portion A37 formed on the outer periphery of the rotation support portion 28.

  In FIG. 6A, the roll piece 24a is composed of a substantially annular non-woven fabric 43 in which a hole 42 is formed in the center and a side edge 41 is formed on the outer periphery. As shown in FIG. 5, the roll piece 24 a is laminated in the vicinity of both end portions in the longitudinal direction of the main body portion 27 constituting the base 23.

  In FIG. 6 (b), the roll piece 24b is composed of a substantially annular non-woven fabric 43 in which a hole 42 is formed in the center and a side edge 41 is formed on the outer periphery. Further, the roll piece 24b is formed with approximately U-shaped cutout portions 39 at six equally divided portions on the inner periphery. As shown in FIG. 5, the roll piece 24 b is laminated at a substantially central portion where a hole portion 33 excluding the vicinity of both end portions in the longitudinal direction of the main body portion 27 constituting the pedestal 23 is formed on the outer periphery. Then, the notch portion 39 is continuous over the longitudinal direction of the main body portion 27, whereby a plurality of fluid groove portions 34 are formed as shown in FIG. 5, and the fluid groove portion 34 is positioned on the roll portion 22 side of the hole portion 33. Set to do. That is, the hole 33 and the fluid groove 34 are formed to face each other. The number of notches 39 formed on the inner periphery of the roll piece 24 b is changed according to the number of holes 33 formed on the outer periphery of the main body 27 on the circumference. Furthermore, the shape of the notch 39 may be an approximate V shape, an approximate concave shape, or the like other than the approximate U shape.

  As described above, by disposing the roll pieces 24 a not having the notch portions 39 at both ends of the main body portion 27, the roll 21 can prevent vacuum leakage from the contact portion between the roll portion 22 and the plate 26. In addition, by disposing the roll piece 24b having the cutout portion 39 at the substantially central portion of the main body portion 27 and forming the fluid groove portion 34 so as to face the hole portion 33, the liquid absorbed by the roll portion 22 is It is possible to quickly and surely flow into the hole 33 via the fluid groove 34.

  The diameter of the hole 33 is not particularly limited. For example, the diameter of the hole 33 is preferably set to about 1 to 8 mm. When the diameter of the hole 33 is less than 1 mm, the diameter is too small to efficiently flow the liquid into the opening 30. When the diameter exceeds 8 mm, the diameter is too large to suck the liquid per hole. Becomes weaker.

  In FIG. 7, the threading direction of the thread portion 36 is threaded in the direction opposite to the rotation direction of the roll 21. For example, when the rotation direction of the roll 21 is an arrow C (counterclockwise), the threading direction of the screw portion 36 is threaded toward the opposite rotation support portion 8 in the direction of the arrow D (clockwise). . That is, the screw portion 36 is formed in a direction in which a rotary joint (not shown) is tightened with respect to the rotation direction of the roll 21.

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

  In the roll 21, an opening 30 is formed in the main body 27, and a hole 33 communicating with the opening 30 is formed on the outer periphery, and one rotation support portion 28 is formed with a hollow portion 31 and is hollow. The part 31 is in communication with the opening 30 and has a connection part 32 formed at one end, and an external device such as a vacuum pump or a compressor is connected to the connection part 32 via a rotary joint, piping, etc. By operating the apparatus, the liquid absorbed by the roll unit 22 can be discharged to the outside, and the durability of the roll 21 can be improved.

  For example, when the roll 21 is connected to a vacuum pump, the liquid absorbed by the roll unit 22 is quickly and reliably sucked into the hole 33 as indicated by the broken line arrow shown in FIG. Then, after passing through the order of the hollow portion 31, it is discharged to the outside of the roll 21 through a rotary joint, piping and the like. Since the liquid absorption saturation state of the roll part 22 is eliminated, the durability of the roll 21 is improved.

  In the roll 21, a screw portion 36 for connecting the rotary joint to one rotation support portion 28 is formed in the connection portion 32, and the screw portion 36 is formed to be tightened in the rotation direction of the roll 21. Accordingly, the screw portion 36 is threaded in the direction opposite to the rotation direction of the roll 21, and the rotary joint is screwed and fixed to the screw portion 36 and is tightened when the roll 21 rotates. Therefore, when the roll 21 is rotating, the rotary joint is prevented from falling off from the connection portion 32, and the roll 21 can be used for a long period of time.

  The cleaning apparatus of Example 3 will be described with reference to FIGS. In addition, in order to make description of a structure easy, suppose that illustration and description of the bearing part of each component and a support component are abbreviate | omitted. Further, the roll is used for removing oil adhering to the steel plate.

  The rolls 51a and 51b are installed in a pair on the cleaning device 50, and a constant pressure is applied to both ends of the pedestal 53 of the roll 51a located at the upper part. Between the roll 51a and the lower roll 51b, a piece-shaped steel plate 20 with oil (not shown) attached on both sides is fed in the direction of the white arrow.

  In FIG. 8 and FIG. 9, the roll 51 a located at the top removes oil from the surface of the steel plate 20, and the roll 51 b located at the bottom removes oil from the back surface of the steel plate 20. When the steel plate 20 to which the oil component is attached comes into contact with the roll portion 52, the oil component flows away from both ends of the steel plate 20 due to the dam function of the rolls 51a and 51b, and the compression zone (the flow direction of the steel plate 20 flows) due to the suction / discharge function. That is, in the direction of the white arrow, oil is once discharged from the roll portion 52 to the steel plate 20 at the upstream side of the steel plate 20 from the rolls 51a and 51b, and the release zone from the pressure (flow direction of the steel plate 20, ie, white). In the direction of the arrow, the capillary phenomenon of the fibers of the nonwoven fabric constituting the roll part 52 is developed in the rolls 51a and 51b (downstream of the steel plate 20), and oil is sucked up by the roll part 52 and in the gap of the roll part 52 The oil is released and the oil is removed from the steel plate 20.

  In addition, the rolls 51a and 51b are the same as the roll 1 of Example 1 shown above. Therefore, as shown in FIG. 9, the rolls 51 a and 51 b are in contact with the direction of polishing of the roll portion 52 in the conveyance direction of the steel plate 20, so that the fibers 44 are inclined in the conveyance direction of the rolls 51 a and 51 b. Therefore, the adhesiveness between the roll part 52 and the steel plate 20 is improved, the dam function acts efficiently and reliably, and the oil adhering to the steel plate 20 is removed.

  The operation and action of the cleaning device 20 configured as described above are as follows.

  The cleaning device 50 can exhibit excellent liquid removal performance.

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

  The rolls 61a and 61b are installed in a pair on the cleaning device 60, and a fixed pressure is applied to both ends of the pedestal 63 of the roll 61a located at the upper portion, that is, the rotation support portion 68. A piece-shaped steel plate 40 having oil (not shown) attached on both sides is fed in the direction of the white arrow between the upper roll 61a and the lower roll 61b. A rotary joint 66 is inserted into the end of one rotation support portion 68 and is connected to a vacuum pump 67 via a pipe 65. The upper roll 61 a removes oil from the surface of the steel plate 40, and the lower roll 61 b removes oil from the back surface of the steel plate 40. The steel plate 40 to which the oil component has adhered comes into contact with the roll unit 62, and the oil component is sucked up by the roll unit 62 and discharged into the gap of the roll unit 62 due to the capillary action of the fibers of the nonwoven fabric constituting the roll unit 62. The rolls 61a and 61b are the same as the roll 2 of the second embodiment described above.

  In the state of the rolls 61a and 61b as described above, when the vacuum pump 67 is operated to apply a vacuum suction force, a negative pressure is applied to the roll part 62, and the oil component absorbed by the roll part 62 becomes a fluid, The fluid flows through the fluid groove portion and the hole portion, flows into the opening portion, passes through the pipe 65 from the hollow portion formed in the one rotation support portion 68, and is sucked and discharged to the outside of the rolls 61a and 61b. The fluid is sent again to the cleaning oil tank through a pipe (not shown) via a filter (not shown) by the vacuum pump 67. Therefore, since the liquid absorption saturation state of the roll part 62 is eliminated and the suction / discharge function is maintained, the rolls 61a and 61b can reliably remove the oil adhering to the steel plate 40 over a long period of time.

  Further, the rotary joint 66 is fitted and fixed to a screw portion provided on one rotation support portion 68, but the screw portion is threaded in a direction opposite to the rotation direction of the rolls 61a and 61b. As the rolls 61a and 61b rotate, the rotary joint 66 is tightened. Therefore, the rotary joint 66 is prevented from falling off from the rotation support portion 68 during the rotation of the rolls 61a and 61b.

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

  The cleaning device 60 exhibits excellent liquid removal performance over a long period of time.

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

1, 2, 51a, 51b, 61a, 61b Roll 2, 22, 52, 62 Roll part 3, 23, 53, 63 Base 4, 24a, 24b Roll piece 5, 25 Fastening bracket 6, 26 Plate 7, 27 Body part 8, 28, 68 Rotation support portion 9 Key 10 Groove portion 11, 41 Side edge portion 12, 42 Hole portion 13, 43 Non-woven fabric 14, 44 Fiber 15 Grinder 16 Gap portion 20, 40 Steel plate 29 Gradual change portion 30 Opening portion 31 Hollow portion 32 Connection portion 33 Hole portion 34 Fluid groove portion 35 Joint portion 36 Screw portion 37 Thread cut portion A
38 Threaded part B
50, 60 Cleaning device 54, 64 Drive means 65 Piping 66 Rotary joint 67 Vacuum pump

Claims (4)

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 rotation support parts at both ends of the main body part. The roll part is formed of a non-woven fabric, and the fibers constituting the non-woven fabric are The surface state of the outer peripheral surface is a surface state in which the coefficient of friction increases depending on the rotation direction when the roll is brought into contact with the object. has a surface state where the friction coefficient is small, the roll unit against the conveying direction of the object, and abuts against the object in the direction of rotation of the surface state of the friction coefficient is small, the Roll surface and To improve the adhesion between the serial object, the coefficient of friction as compared with the case in contact with the said object in the direction of rotation of the surface state becomes larger, to increase the contact area between the object, elastic A roll characterized by sucking up a liquid by capillary action of a fiber that is deformed to form the nonwoven fabric. 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, the roll facing the object In the roll used under pressure, the roll has a roll part and a pedestal, the pedestal has a main body part on which the roll part is formed on the outer periphery, and rotation support parts at both ends of the main body part. And the roll part is formed of a nonwoven fabric, and the fibers constituting the nonwoven fabric are inclined in a direction inclined with respect to the object, and the surface state of the outer peripheral surface is It has a surface state in which the friction coefficient becomes large depending on the rotation direction when the roll is brought into contact with the object, and a surface state in which the friction coefficient becomes small, and the roll unit is in the conveying direction of the object, Friction There was contact with the object by the rotation direction of the surface state becomes small, to improve the adhesion between the object and the surface of the roll portion at the rotation direction of the surface state of the friction coefficient is large A roll having a wide contact area with the object and a surface hardness in the range of 40 ° to 90 ° as compared to the case of contacting the object .   The roll having the configuration according to claim 1 or 2, wherein an opening is formed in the main body of the base, and a hole communicating with the opening is formed on an outer periphery, and at least one end of the roll is supported. The roll is characterized in that the hollow part is formed, the hollow part is communicated with the opening part, and the connection part is formed at the end part.   A cleaning apparatus comprising at least the roll according to any one of claims 1 to 3 and a driving unit that rotationally drives the roll.

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