JP5473112B2 - Roll and cleaning equipment - Google Patents

Description

  The present invention provides 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, papermaking, or film-like surface to be cleaned. The present invention relates to a mounted cleaning device.

  With regard to this type of conventional roll, for example, a shaft body having a liquid absorbing function, a nonwoven fabric roll formed of a nonwoven fabric sheet superimposed on the shaft body, and a vacuum pump communicated with the nonwoven fabric roll via a pipe A liquid absorption method using a nonwoven fabric roll having a delivery function and a liquid absorption function, and this liquid absorption method is intended to increase the vacuum value due to the suction resistance and the function of the capillary tube, The nonwoven fabric portion is used in a wet liquid absorption state, and in this usage state, the nonwoven fabric portion is in the liquid absorption state through a plurality of through holes formed in the shaft body in a staggered manner. The liquid absorption and liquid feeding capillary portions effective in a substantially inverted cone shape toward the outer surface of the roll are allowed to act, and a part of the vacuum suction force is superimposed on the outer surface of the nonwoven fabric roll. This Thus, a liquid absorption method using a nonwoven fabric roll configured to cause the vacuum suction force to uniformly act on the outer surface of the nonwoven fabric roll, and a liquid absorption roll device (Patent Document 1) used for this liquid absorption method have been devised. Yes.

  The nonwoven fabric roll used for the liquid absorption method of patent document 1 and the liquid absorption roll apparatus used for this liquid absorption method is a structure which makes vacuum suction force act uniformly on the outer surface of a nonwoven fabric roll. Therefore, a vacuum suction force acts on the entire circumference of the outer surface of the nonwoven fabric roll. In the configuration as described above, it is possible to uniformly remove the liquid adhering to the surface to be cleaned which is rigid and thick, such as a steel plate or a non-ferrous metal plate. However, the thin and thin surface to be cleaned, such as long papermaking or film, has a vacuum suction force acting on the entire outer surface of the nonwoven fabric roll. It sticks to and winds up. For this reason, the liquid adhering to the surface to be cleaned cannot be removed, resulting in a problem in production. In addition, a film generally refers to a film formed by molding a polymer component such as a synthetic resin into a thin film and having a thickness of 250 μm or less.

  As a roll used when producing a flexible and thin composition such as papermaking and film as described above, for example, an inner cylinder in which a brazing material is arranged on an outer peripheral surface is arranged on an outer cylinder heated in advance. In addition, a method of manufacturing a two-layer roll (Patent Document 2) is disclosed in which the sheet is inserted at a low temperature, and then both are rotated at the same rotational speed, and then bonded with a brazing material and then cooled.

JP-A-7-120145 Japanese Patent Publication No. 8-6740

  The two-layer roll manufactured by the method for manufacturing a two-layer roll in Patent Document 2 is a roll for cooling a surface to be cleaned which is soft and thin, such as papermaking or film to which high temperature is applied. Therefore, like the nonwoven fabric roll shown in patent document 1, it is unsuitable for removing the liquid adhering to the surface to be cleaned.

  Further, the outer cylinder and the outer circumference of the inner cylinder are not provided with a through hole for sucking liquid from the surface to be cleaned by applying a vacuum suction force as shown in Patent Document 1. Therefore, even when the two-layer roll is used for the purpose of removing the liquid from the surface to be cleaned, there is a problem that it is extremely difficult to remove the liquid uniformly from the surface to be cleaned.

  The present invention solves the above-mentioned conventional problems, and reliably removes, exploits, and cleans the liquid adhering to the surface to be cleaned, which is made of a soft and thin object such as papermaking and film, and has excellent durability. It is an object to provide a cleaning roll and a cleaning device equipped with the roll.

In order to solve the above-mentioned conventional problems, the roll of the invention of claim 1 is a liquid such as water, oil, or chemical component adhering to a steel plate, non-ferrous metal plate, resin plate, papermaking, or film-like surface to be cleaned. In the roll for removing, exploiting and washing, the roll has a roll part and a pedestal, and the roll part is formed by laminating a substantially annular roll piece made of nonwoven fabric on the outer periphery of the pedestal, The pedestal has a two-layer structure in which a substantially cylindrical inner cylindrical body is inserted into a hollow outer cylindrical body, and the outer cylindrical body is connected to a main body portion having an opening and both ends of the main body portion. A joint portion A and a joint portion B. The joint portion A and the joint portion B are formed with penetrating portions, and the penetrating portions are communicated with the opening portion. An outer hole communicating with the portion is established, and The inner cylindrical body has a shaft body part in which a hollow part is formed, and a bearing part A and a bearing part B connected to both ends of the shaft body part, and the bearing part A and / or The bearing part B is formed with a hollow part, the hollow part is communicated with the cavity part, and an inner hole part communicating with the cavity part is opened at a specific portion of the outer periphery of the shaft body part, The inner hole portion sequentially overlaps with the outer hole portion by rotating the outer cylindrical body, and the vacuum suction force is applied only to the roll portion located in the vicinity of the portion where the inner hole portion and the outer hole portion overlap each other. It is formed so that the fluid is sucked by the action , and the roll part is formed of a non-woven fabric, so that the liquid is sucked up and removed from the surface to be cleaned by the capillary action of the fibers constituting the non-woven fabric. .

  When a vacuum pressure is applied to the roll, the roll of the present invention is located in the vicinity of the outer hole and the inner hole overlapping each other because the outer cylinder rotates and the inner cylinder is stationary. Only the vacuum suction force is applied. Therefore, since the vacuum suction force does not act on the entire circumference of the roll part, even if a soft and thin object such as papermaking or film comes into contact with the roll part, the object is placed on the outer periphery of the roll part. There is no wrapping. Therefore, it is possible to remove the liquid adhering to the surface to be cleaned of the object without hindering the production of the object. In addition, the location where the outer hole portion and the inner hole portion overlap is set at a location where the object does not contact the roll portion, for example, a portion of the roll portion on the opposite side of 180 ° from the location where the roll portion and the object contact. There is a need.

  By applying a vacuum pressure to the roll, the liquid absorbed in the roll part becomes a fluid by the action of the vacuum suction force, and passes through the outer hole part, the inner hole part, the hollow part, and the hollow part in this order, and then outside the roll. Released. Therefore, since the liquid absorption saturation state of the roll part is eliminated, the roll reliably removes the liquid from the surface to be cleaned over a long period of time.

  In the roll of the present invention, the inner cylinder is stationary, only the outer cylinder rotates, and the outer hole portion is configured to sequentially overlap the inner hole portion. From the vicinity where the outer hole portion and the inner hole portion overlap each other, a fluid is generated by the action of the vacuum suction force and is discharged to the outside of the roll.

  The roll of the invention of claim 2 is the roll of claim 1 in which a fluid introduction groove is formed on the outer periphery of the main body and an outer hole is formed in the fluid introduction groove. The liquid thus made can flow uniformly from the outer hole part to the inner hole part, the hollow part, and the hollow part through the fluid introduction groove part by the vacuum suction force. Therefore, the roll can suck the liquid absorbed in the roll part quickly and uniformly and discharge it to the outside of the roll as compared with the form in which the fluid introduction groove part is not formed on the outer periphery of the main body part. It becomes.

  According to a third aspect of the present invention, in the roll of the first aspect, a notch is provided on the inner periphery of the roll piece, and the notch is continuous with the longitudinal direction of the main body, thereby allowing fluid to flow. An introduction groove is formed, and the fluid introduction groove is positioned on the roll part side of the outer hole, and the liquid absorbed in the roll is uniformly distributed through the fluid introduction groove by the vacuum suction force. From the inner hole portion, the hollow portion, and the hollow portion. Therefore, the roll does not have a fluid introduction groove formed in the roll part, and the liquid absorbed in the roll part is compared to a form in which the outer hole part is substantially in contact with the inner periphery of the roll piece. It becomes possible to suck out quickly and uniformly and discharge it to the outside of the roll.

The roll of the invention of claim 4 is the roll of any one of claims 1 to 3, particularly, a seal member surrounding the inner hole portion is attached to the outer periphery of the shaft body portion, and the seal member is at least at the time of suction of fluid, The seal member is in sliding contact with the inner periphery of the main body portion, and the seal member fills a gap formed between the outer periphery of the shaft body portion and the inner periphery of the main body portion. Therefore, when the fluid flows out from the outer hole portion to the inner hole portion, the fluid is prevented from flowing into the gap, so that the pressure loss can be suppressed, and the fluid is reliably discharged to the outside with a stronger vacuum suction force. .

The roll of the invention of claim 5 is the roll of claim 4 in which an elastic member is inserted between the outer periphery of the shaft body portion and the seal member, and elasticity is imparted to the seal member. Therefore, the wear resistance of the seal member is improved, and the durability of the roll is improved.

The roll of the invention of claim 6 is the roll of any one of claims 1 to 5, particularly, in the vicinity of the joint of the shaft body part and the bearing part A and / or the bearing part B, the opening area of the cavity part, The gradually changing portion is formed so as to be smaller than the opening area of the substantially central portion of the shaft body portion, and is sucked from the roll portion to the cavity portion of the shaft body portion via the outer hole portion and the inner hole portion. The fluid flows into the hollow portion formed in the bearing portion A and / or the bearing portion B along the inclined surface of the gradually changing portion without staying in the hollow portion, and is discharged to the outside of the roll. In addition, when the gradual change part which has an inclined surface is not formed in the edge part of a shaft body part, reflux generate | occur | produces in the connection location of a shaft body part, the bearing part A, and the bearing part B, and a liquid is a shaft body part. It becomes difficult to suck the liquid efficiently and reliably. Also, the load on the vacuum pump increases.

  A cleaning device according to a seventh aspect of the present invention includes a roll according to any one of the first to sixth aspects, a driving means for rotationally driving the roll, and a bearing part A and / or a bearing part B via piping. It has a vacuum pump that communicates with each other and is equipped with a roll that can reliably remove, squeeze, and clean the liquid from the surface to be cleaned over a long period of time. Is done. For this reason, the generation of residue marks in which liquid remains unevenly on the surface to be cleaned is suppressed, leading to improvement in the quality of the object.

  Since the vacuum suction force acts only on a specific portion of the roll part, that is, the part where the outer hole part and the inner hole part overlap, the roll of the invention of claim 1 is a flexible and thin object on the outer periphery of the roll part. The liquid can be removed from the surface to be cleaned of the object for a long period of time.

  In the roll of the invention of claim 2, the liquid absorbed in the roll part is uniformly distributed from the outer hole part to the inner hole part and the cavity part through the fluid introduction groove part formed on the outer periphery of the main body part by the vacuum suction force. , Can flow in the order of the hollow portion.

  In the roll of the invention of claim 3, the liquid absorbed in the roll part is uniformly distributed from the outer hole part to the inner hole part and the cavity through the fluid introduction groove part formed in the inner periphery of the roll part by a vacuum suction force. Part and hollow part in this order.

  The roll of the invention of claim 4 can suppress pressure loss and can reliably discharge the fluid to the outside of the roll with a stronger vacuum suction force.

  In the roll according to the fifth aspect of the invention, the wear resistance of the seal member is improved, and the durability of the roll can be improved.

  The roll of the invention of claim 6 can discharge the fluid to the outside of the roll efficiently and reliably without the fluid staying in the cavity.

  The cleaning device according to the seventh aspect of the invention can produce an object with stable quality and can improve the productivity of the object.

It is a front view of the roll in the 1st example of the present invention. It is sectional drawing of FIG. It is AA sectional drawing of FIG. It is the perspective view which looked at the roll piece from the front side. (A) The perspective view which looked at the main-body part from the front side, (b) The perspective view which looked at the joint part A and the joint part B from the front side. It is a front view of an inner cylinder. It is sectional drawing of the roll in the 2nd Example of this invention. (A) The top view of the roll piece laminated | stacked on the outer periphery of the vicinity of the edge part of a main-body part, (b) The top view of the roll piece laminated | stacked on the outer periphery of the approximate center part of a main-body part. It is explanatory drawing of the washing | cleaning apparatus carrying the roll of this invention.

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

  The roll of Example 1 is demonstrated using FIGS. 1-6.

  1 and 2, the roll 1 includes a roll part 2, a pedestal 3, a fastener 17, and a plate 18. The pedestal 3 has a substantially cylindrical shape made of a metal material such as iron or aluminum, and has an inner cylindrical body 6 composed of a bearing portion A12 and a bearing portion B13 that are connected to both ends of the shaft body portion 11 via joint portions 36 by welding. However, it has a two-layer structure inserted into a hollow outer cylinder 5 having a joint portion A8 and a joint portion B9 connected to both ends of the main body portion 7 by bolts 19. The roll part 2 is formed by laminating a plurality of roll pieces 4 on the outer periphery of the main body part 7 of the outer cylindrical body 5 constituting the pedestal 3, and overlapping each other. It is formed by sandwiching. A snap ring is used for the fastener 17.

  Next, the configuration of the base 3 will be described in detail.

  In FIGS. 2, 5 (a), and 5 (b), the outer cylindrical body 5 is substantially parallel to the axial direction of the outer cylindrical body 5 at six positions on the outer periphery of the main body 7 having the opening 25. The fluid introduction groove portion 20 is formed so that the circular outer hole portions 10 are formed in the fluid introduction groove portion 20 at eight locations. The outer hole portion 10 communicates with the opening portion 25. A joint part A8 having a through-hole 26 and a joint part B9 are connected to both ends of the main body part 7 by bolts 19. The opening 25 and the penetrating part 26 communicate with each other. The bolts 19 are inserted into six bolt hole portions A31 opened on both end faces of the main body 7 and six bolt hole portions B32 opened in the joint portion A8 and the joint portion B9. A bearing 24 is fitted and inserted into the inner periphery of the joint portion A8 and the joint portion B9. The fastener 17 is fitted and inserted into the fitting portion 33 formed on the outer periphery of the joint portion A8 and the joint portion B9. With the configuration as described above, the hollow outer cylinder 5 is formed.

  2 and 6, the inner cylindrical body 6 has eight inner hole portions 16 formed on the outer periphery of the shaft body portion 11 having the hollow portion 14, and the inner hole portion 16 is formed of the inner cylindrical body 6. They are arranged so as to be substantially parallel to the axial direction. The inner hole portion 16 communicates with the cavity portion 14. Further, a sealing member 21 and an elastic member 22 superimposed on the sealing member 21 are attached to the outer periphery of the shaft body portion 11 by screws 34 so as to surround the inner hole portion 16. As for the seal member 21 and the elastic member 22, the elastic member 22 is attached to the outer periphery of the shaft body portion 11, and the seal member 21 is superimposed on the elastic member 22. The seal member 21 is made of a soft metal such as copper or brass, or a material such as resin. The elastic member 22 is made of a material such as rubber such as nitrile rubber or urethane rubber, or elastomer. One end of the shaft body portion 11 has a hollow portion 15 and is connected to a bearing portion A12 in which a screw portion 35 is formed, and the other end portion of the shaft body portion 11 has a solid bearing portion. B13 is connected. The hollow portion 14 and the hollow portion 15 communicate with each other, and a gradually changing portion 37 having an inclined surface is formed in the vicinity of the joint portion 36 where the hollow portion 14 and the hollow portion 15 are joined. The bearing part A12 and the bearing part B13 are press-fitted into both ends of the shaft body part 11 and are connected to each other via a joining part 36 by welding to form the inner cylindrical body 6. In addition, as shown in FIG. 9, the rotary joint 89 at the time of connecting from the vacuum pump 87 via the piping 88 is inserted and fixed to the screw part 35.

  The inner cylinder 6 configured as described above is inserted into the hollow outer cylinder 5 to form the pedestal 3 having a two-layer structure. When the inner cylindrical body 6 is inserted into the outer cylindrical body 5, the outer circumferences of the bearing part A12 and the bearing part B13 are arranged so as to contact the bearing 24 fitted and inserted into the inner circumferences of the joint part A8 and the joint part B9. In the pedestal 3 formed as described above, the driving means is arranged on the outer periphery of the joint portion A8 and / or the joint portion B9, so that when the pedestal 3 rotates, only the outer cylindrical body 5 rotates, and the bearing 24 supports the bearing. The inner cylinder 6 receiving the part A12 and the bearing part B13 does not rotate and can be kept stationary. Therefore, as shown in FIG. 3, when the roll 1 rotates in the direction of the arrow, the main body portion 7 rotates but the shaft body portion 11 is stationary. Therefore, the positions of the inner hole portion 16, the seal member 21, and the elastic member 22 are unchanged, and the outer hole portion 10 opened in the fluid introduction groove portion 20 moves with the rotation of the main body portion 7. The outer hole portions 10 adjacent to each other in the circumferential direction of the main body portion 7 sequentially overlap with the inner hole portion 16 as the main body portion 7 rotates, and the outer hole portion 10 and the inner hole portion 16 communicate with each other and are inevitably hollow. The unit 14 is also communicated. Further, as the main body 7 rotates, the seal member 21 is in sliding contact with the inner periphery of the main body 7, and fills the gap 23 generated between the inner periphery of the main body 7 and the outer periphery of the shaft body 11 together with the elastic member 22. Is arranged.

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

  First, a flat nonwoven fabric 27 having a base 3 and fibers 28 is prepared. The non-woven fabric 27 is formed in a generally annular roll piece 4 having a hole 29 and a side edge 30 as shown in FIG. 4 using a Thomson type or a laser cutter.

  Next, a plurality of roll pieces 4 are overlapped so that the hole 29 penetrates the base 3 and is laminated on the outer periphery of the main body 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 17 and the plate 18. FIG. Next, by leaving for a predetermined time, the internal stress of the plurality of roll pieces 4 superimposed is made uniform, the side edge portion 30 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 portion of the roll portion 2 is desirably set to about 40 ° to 95 °. When the hardness is less than 40 °, the hardness is too low, and the roll part 2 is worn early when the end face of the surface to be cleaned repeatedly contacts the roll part 2. On the other hand, when the hardness exceeds 95 °, the hardness is too high, the elasticity of the roll 1 is inferior, and the liquid removal performance is lowered. In addition, hardness represents the hardness of a substance and is the hardness measured by the durometer hardness test described in the hardness test method of JISK6253 vulcanized rubber and thermoplastic rubber.

  The diameters of the outer hole part 10 and the inner hole part 16 and the width and depth of the fluid introduction groove part 20 are not particularly limited. For example, the diameters of the outer hole part 10 and the inner hole part 16 are 1 It is preferable that the width of the fluid introduction groove 20 is set to about 2 to 30 mm and the depth is about 0.1 to 5 mm. The width of the fluid introduction groove 20 is set to the outer hole 10 and the inner hole. It needs to be set larger than 16 diameters. When the diameters of the outer hole part 10 and the inner hole part 16 are less than 1 mm, the diameter is too small to efficiently flow out the fluid into the cavity part 14, and when the diameter exceeds 8 mm, the diameter is too large and one hole is formed. The power to suck the fluid around is weakened. In addition, when the width of the fluid introduction groove 20 is less than 2 mm, the width is too narrow to allow fluid to flow efficiently, and when it exceeds 30 mm, it is too wide to form the fluid introduction groove 20. When the depth of the fluid introduction groove 20 is less than 0.1 mm, the fluid cannot flow efficiently because it is too shallow, and when it exceeds 5 mm, it takes too much time to form the fluid introduction groove 20 due to being too deep. Moreover, the arrangement | positioning of the outer hole part 10 and the inner hole part 16 winds around the surface of the roll part 2 in addition to the form arrange | positioned substantially parallel to the axial center direction of the main-body part 7 and the shaft body part 11, As long as the production is not hindered, for example, it may be arranged in a spiral shape.

  Next, several methods for manufacturing the nonwoven fabric 27 constituting the roll piece 4 will be described.

  In the first method, a plurality of fibers 28 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 27 is obtained. The above manufacturing method is generally called needle punching. The cloth-like body is called a web. The obtained nonwoven fabric 27 is impregnated in a polyurethane solution, and the nonwoven fabric 27 is filled with polyurethane. Next, the nonwoven fabric 27 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 28 forming the nonwoven fabric 27, 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 28 are accumulated in a flat plate shape to form a web that becomes a cloth-like body, and a nonwoven fabric 27 entangled three-dimensionally by needle punching is obtained. With respect to the obtained nonwoven fabric 27, 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 28 forming the nonwoven fabric 27 are bonded by heating. The nonwoven fabric 27 obtained by the above manufacturing method is generally called a chemical bond method nonwoven fabric. For the fibers 28 forming the nonwoven fabric 27, 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 the fiber 28 by injecting a high-pressure water stream of about 100 to 150 kgf to the obtained fiber 28. Entanglement. Next, a non-woven fabric 27 obtained by the above-described manufacturing method is formed by attaching a polymer elastic body containing a cross-linking agent to the fiber 28 using a method such as spraying, dipping or impregnation, and heating to form the non-woven fabric 27. 27 is generally called a hydroentangled nonwoven fabric.

  The manufacturing method of the nonwoven fabric 27 shown above is a typical example. In addition to the above, for example, a fiber 28 is formed by continuously spinning a heat-melted synthetic resin, and the fiber 28 is collected while being drawn. A spunbond method in which fibers 28 are combined by forming on a net and pressurized with a hot roll to form a nonwoven fabric 27. When a hot-melt synthetic resin is discharged from a spinneret, it is spun with high-temperature air and collected. When melted synthetic resin is dissolved in a low-boiling solvent such as methylene chloride, chlorofluorocarbon, and the like, and the fibers 28 are spun in a heated and pressurized state by bonding the heated fibers 28 to form the nonwoven fabric 27. At the same time, the low-boiling solvent is volatilized, the fibers 28 are accumulated on a collection net, pressed by a hot roll, and the fibers 28 are bonded to form the nonwoven fabric 27. A plurality of synthetic resins having different melting points are used. A fiber bond method or a thermal bond in which a synthetic resin having a higher melting point is spun to form a fiber 28 and the nonwoven fabric 27 is formed by adhering the fiber 28 using the molten synthetic resin having a lower melting point as a binder. You may use the nonwoven fabric 27 manufactured by the method etc. When the nonwoven fabric 27 is formed on the roll 1, it is strong against repeated contact of the surface to be cleaned and the fibers 28 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 27 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 chemical resistance for the liquid to be removed, the cost, and the like.

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

  Since the roll part 2 is formed of the nonwoven fabric 27, the roll 1 sucks and removes the liquid from the surface to be cleaned by the capillary phenomenon of the fibers 28 constituting the nonwoven fabric 27.

  When the vacuum pressure is applied to the roll 1, as shown in FIG. 3, in the roll 1, the main body portion 7 constituting the outer cylindrical body 5 rotates and the shaft body portion 11 constituting the inner cylindrical body 6 is stationary. Therefore, the vacuum suction force acts only on the roll part 2 located in the vicinity where the outer hole part 10 and the inner hole part 16 overlap each other. Accordingly, since the vacuum suction force does not act on the entire circumference of the roll part 2, even if a flexible and thin object such as papermaking or film comes into contact with the roll part 2, the object remains in the roll part 2. It does not wrap around the outer periphery. Therefore, it is possible to remove the liquid adhering to the surface to be cleaned of the object without hindering the production of the object. In addition, the part where the outer hole part 10 and the inner hole part 16 overlap is a part where the object does not contact the roll part 2, for example, the part of the roll part 2 on the opposite side 180 ° from the part where the roll part 2 and the object contact. Etc. need to be set.

  By applying a vacuum pressure to the roll 1, the liquid absorbed in the roll part 2 becomes a fluid by the action of the vacuum suction force, and as shown by a two-dot chain line in FIG. 2, the outer hole part 10, the inner hole part 16, the cavity It passes through the part 14 and the hollow part 15 in this order, and is discharged to the outside of the roll 1. Therefore, since the liquid absorption saturation state of the roll unit 2 is eliminated, the roll 1 reliably removes the liquid from the surface to be cleaned over a long period of time. In the roll 1 of the present invention, as shown in FIG. 3, the inner cylindrical body 6 is stationary, only the outer cylindrical body 5 rotates, and the outer hole portion 10 sequentially overlaps the inner hole portion 16. Therefore, the liquid absorbed in the roll part 2 becomes a fluid by the action of the vacuum suction force sequentially from the vicinity where the outer hole part 10 and the inner hole part 16 overlap each other, and is discharged to the outside of the roll 1.

  Since the roll 1 has the fluid introduction groove 20 formed on the outer periphery of the main body 7, the liquid absorbed by the roll 2 is uniformly outer holed via the fluid introduction groove 20 by the vacuum suction force. 10 can flow in the order of the inner hole 16, the cavity 14, and the hollow 15. Therefore, the roll 1 sucks the liquid absorbed by the roll part 2 quickly and uniformly to the outside of the roll 1 as compared with the form in which the fluid introduction groove part 20 is not formed on the outer periphery of the main body part 7. It becomes possible to discharge.

  The roll 1 is formed so that the seal member 21 and the elastic member 22 fill a gap 23 generated between the outer periphery of the shaft body portion 11 and the inner periphery of the main body portion 7. Accordingly, the fluid is prevented from flowing into the gap 23 when flowing out from the outer hole portion 10 to the inner hole portion 16, so that pressure loss can be suppressed, and the outer surface of the roll 1 can be reliably removed with a stronger vacuum suction force. Discharged. Further, since the elastic member 22 is inserted between the outer periphery of the shaft body portion 11 and the seal member 21, elasticity is imparted to the seal member 21, so that the seal member 21 is placed on the inner periphery of the main body portion 7. Abrasion resistance at the time of sliding contact is improved, leading to improvement in durability of the roll 1.

  In the roll 1, since the gradually changing portion 37 having an inclined surface is formed in the vicinity of the joint portion 36 where the hollow portion 14 and the hollow portion 15 are joined, the roll 1 is interposed via the outer hole portion 10 and the inner hole portion 16. Thus, the fluid sucked into the hollow portion 14 of the shaft body portion 11 from the roll portion 2 does not stay in the hollow portion 14, and the hollow portion 15 formed in the bearing portion A12 along the inclined surface of the gradually changing portion 37. And discharged to the outside of the roll 1.

  The roll of Example 2 is demonstrated using FIG.7 and FIG.8. Detailed description of the same members as those in the first embodiment will be omitted.

  In FIG. 7, a roll 41 has a plurality of roll pieces 44 a and 44 b laminated on the outer periphery of a pedestal 43 made of a metal material such as iron or aluminum, and a superimposed roll portion 42 is formed. Both ends of the roll part 42 are sandwiched and fixed by a stopper 57 and a plate 58. The pedestal 43 has a joint part A48 in which an inner cylindrical body 46 composed of a bearing part A52 and a bearing part B53 connected to both ends of the shaft part 51 via joints 76 is connected to both ends of the main body part 47 by bolts 59. And a two-layer structure inserted into a hollow outer cylinder 45 having a joint portion B49.

  The outer cylindrical body 45 is provided with eight outer hole portions 50 at six locations on the outer periphery of the main body 47 having the opening 65 so as to be substantially parallel to the axial direction of the outer cylindrical body 45. The outer hole portion 50 communicates with the opening 65. A joint part A 48 having a through part 66 and a joint part B 49 are connected to both ends of the main body part 47 by bolts 59. The opening 65 and the penetrating portion 66 are in communication. Further, bearings 64 are fitted and inserted into the inner circumferences of the joint portion A48 and the joint portion B49, and are arranged so as to receive the bearing portion A52 and the bearing portion B53 constituting the inner cylindrical body 46, respectively.

  The inner cylindrical body 46 has an inner hole portion 56 formed on the outer periphery of the shaft body portion 51 having the hollow portion 54, and the inner hole portion 56 is arranged so as to be substantially parallel to the axial direction of the inner cylindrical body 46. ing. The inner hole portion 56 communicates with the cavity portion 54. Further, a seal member 61 and an elastic member 62 are attached to the outer periphery of the shaft body portion 51 with screws (not shown) so as to surround the inner hole portion 56. Both end portions of the shaft body portion 51 have a hollow portion 55, and a bearing portion A 52 and a bearing portion B 53 in which a screw portion 75 is formed are connected to each other, and the cavity portion 54 and the hollow portion 55 communicate with each other. The bearing portion A52 and the bearing portion B53 are press-fitted into both ends of the shaft body portion 51 and are connected to each other through a joint portion 76 by welding. In the vicinity of the joint portion 76, a gradual change portion 77 having an inclined surface is formed. Further, the seal member 61 is slidably contacted with the inner periphery of the main body portion 47 as the main body portion 47 rotates, and fills the gap 63 generated between the inner periphery of the main body portion 47 and the outer periphery of the shaft body portion 51 together with the elastic member 62. Is arranged.

  Next, the roll unit 42 will be described in detail.

  In FIG. 8A, the roll piece 44a is composed of a substantially annular nonwoven fabric 67 having a hole 69 at the center and a side edge 70 at the outer periphery. The nonwoven fabric 67 has a plurality of fibers (not shown). As shown in FIG. 7, the roll pieces 44 a are stacked in the vicinity of both end portions in the longitudinal direction of the main body portion 47 constituting the pedestal 43.

  In FIG. 8B, the roll piece 44b is composed of a substantially annular nonwoven fabric 67 having a hole 69 at the center and a side edge 70 at the outer periphery. The nonwoven fabric 67 has a plurality of fibers (not shown). Further, the roll piece 44b has roughly U-shaped cutout portions 68 formed at six equally spaced portions on the inner periphery. As shown in FIG. 7, the roll piece 44b is laminated in the vicinity of the substantially central portion of the main body portion 47 where the outer hole portions 50 except for the vicinity of both end portions in the longitudinal direction of the main body portion 47 constituting the pedestal 43 are formed on the outer periphery. Is done. Then, the notch portion 68 is connected in the vicinity of the substantially central portion of the main body portion 47 so as to be substantially parallel to the axial direction, whereby a plurality of fluid introduction groove portions 60 are formed as shown in FIG. The fluid introduction groove portion 60 is set to be positioned on the roll portion 42 side of the portion 50. That is, the outer hole portion 50 and the fluid introduction groove portion 60 are formed to face each other. The number of notches 68 formed on the inner periphery of the roll piece 44 b is changed according to the number of outer holes 50 provided on the outer periphery of the main body 47 on the circumference. Furthermore, the shape of the notch 68 may be a substantially V shape, a generally concave shape, or the like other than a generally U shape.

  The roll part 42 is formed by a total number of roll pieces 44 a and 44 b used for the roll 41. The roll piece 44a located in the vicinity of both ends of the main body 47 and the roll piece 44b located in the vicinity of the substantially central portion of the main body 47 are non-woven fabric 67 made of the same material, and the outer diameter and inner diameter are substantially the same. Are the same. In addition, although not shown in particular, in order to prevent displacement of the roll pieces 44 a and 44 b with respect to the pedestal 43, a concave groove is formed on the inner periphery of the roll pieces 44 a and 44 b, and the main body portion 47 constituting the pedestal 43 is formed. The roll pieces 44 a and 44 b may be laminated on the outer periphery of the main body portion 47 by mounting a convex key on the outer periphery in the longitudinal direction and fitting and inserting the concave groove portion into the convex key.

  The operation and action of the roll 41 configured as described above are as follows.

  In the roll 41, a notch 68 is provided on the inner periphery of the roll piece 44b, and the notch 68 is continuous in the longitudinal direction of the main body 47, whereby a fluid introduction groove 60 is formed and the outer hole 50 is formed. Since the fluid introduction groove 60 is positioned on the side of the roll 42, the liquid absorbed by the roll 42 passes through the fluid introduction groove 60 as indicated by a two-dot chain line in FIG. Thus, the inner hole portion 56, the hollow portion 54, and the hollow portion 55 can flow uniformly from the outer hole portion 50 in this order. Therefore, the roll 41 does not have the fluid introduction groove portion 60 formed in the roll portion 42, and the roll portion 42 has a configuration in which the outer hole portion 50 is formed so as to substantially contact the inner periphery of the roll piece 44 b. The absorbed liquid can be quickly and uniformly sucked and discharged to the outside of the roll 41.

  In the roll 41, the fluid introduction groove 60 is formed in the range between the vicinity of one end and the vicinity of the other end in the longitudinal direction of the roll 42, that is, in the vicinity of the substantially central portion. The fluid introduction groove 60 is not formed in the vicinity of both end portions. Therefore, the fluid generated by the vacuum suction force does not flow out from the both ends of the roll part 42 to the outside of the roll 41, and the liquid absorbed by the roll part 42 becomes a fluid and becomes the fluid introduction groove 60, the outside. The holes 50, the inner holes 56, the cavities 54, and the hollow portions 55 are surely discharged out of the roll 41 in this order. Therefore, there is no pressure loss, and the suction performance of the liquid from the roll part 42 is greatly improved.

  In the roll 41, both the bearing portion A52 and the bearing portion B53 constituting the inner cylindrical body 46 have a hollow portion 55, and the inner cylindrical body 46 is formed so as to penetrate through the hollow portion 54 and the hollow portion 55 in a hollow shape. Therefore, both the bearing portion A52 and the bearing portion B53 connected to the both end portions of the shaft body portion 51 can be connected to the vacuum pump via a pipe. Accordingly, since the liquid absorbed by the roll part 42 can be sucked simultaneously from both ends of the pedestal 43, the fluid flows from a substantially central part in the longitudinal direction of the cavity part 54 as shown by a two-dot chain line in FIG. Since they move toward both ends of the pedestal 43 at substantially the same distance, the generation of frictional energy loss of the fluid is suppressed as much as possible, there is no variation in vacuum suction force, and the liquid absorbed by the roll unit 42 is removed. , Quickly and uniformly sucked and discharged to the outside of the roll 41. Therefore, the liquid absorption saturated state of the roll part 42 is eliminated, and the service life of the roll 41 can be prolonged.

  The cleaning apparatus of Example 3 will be described with reference to FIG. In addition, in order to make description of a structure easy, suppose that illustration and description of the bearing part of each component and a support component are abbreviate | omitted. Moreover, a roll shall be used for the water | moisture content removal adhering to a film.

  The rolls 81a and 81b are installed on the cleaning device 80 as a pair, and a fixed pressure is applied to both ends of the pedestal 83 of the roll 81a located on the upper side. The drive means 84 connected to the joint portion B86 causes the arrows 81 A long film 90 having moisture (not shown) attached on both sides is fed in the direction of the white arrow between the upper roll 81a and the lower roll 81b. A rotary joint 89 is inserted into the end of the bearing portion A85 and is connected to a vacuum pump 87 via a pipe 88. The upper roll 81 a removes moisture from the surface of the film 90, and the lower roll 81 b removes moisture from the back surface of the film 90. The film 90 to which moisture adheres comes into contact with the roll portion 82, and moisture is sucked up by the roll portion 82 and released into the gap of the roll portion 82 due to the capillary action of the fibers of the nonwoven fabric constituting the roll portion 82. The rolls 81a and 81b are the same as the roll 1 of the first embodiment described above.

  When the vacuum pump 87 is operated and the vacuum suction force is applied in the state of the rolls 81a and 81b as described above, negative pressure is applied to a specific portion of the roll portion 82, that is, a portion where the outer hole portion and the inner hole portion overlap each other. Added. The location where the outer hole portion and the inner hole portion overlap is a portion of the roll portion 82 where the roll portion 82 and the film 90 do not contact. For example, the upper roll 81a is the uppermost portion of the roll portion 82, and the lower roll 81b is the roll portion 82. It is desirable to set it at the bottom. The water absorbed in the roll part 82 becomes a fluid, and the fluid flows through the outer hole part and the inner hole part, flows into the cavity part, passes through the pipe 88 from the hollow part formed in the bearing part A85, and rolls 81a and 81b. Is sucked out and released. The fluid is sent again to the washing water tank through a pipe (not shown) via a filter (not shown) by the vacuum pump 87. Accordingly, the liquid is removed from the surface to be cleaned without winding the film 90 around the surface of the roll portion 82. Moreover, since the liquid absorption saturated state of the roll part 82 is eliminated, the rolls 81a and 81b can reliably remove moisture adhering to the film 90 over a long period of time.

  The operation and action of the cleaning device 80 configured as described above are as follows.

  The cleaning device 80 can remove moisture from the surface to be cleaned of the film without winding the film 90 around the surface of the roll portion 82 even when a vacuum suction force is applied to the rolls 81 a and 81 b by the vacuum pump 87. . Therefore, the productivity of the film 90 can be improved, and the generation of a residue mark in which moisture remains unevenly on the film 90 is suppressed, and the film 90 with stable quality can be produced.

  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, papermaking, or film-like surface to be cleaned. However, it can be used widely and suitably as a roll requiring high durability and liquid removal performance.

1, 41, 81a, 81b Roll 2, 42, 82 Roll part 3, 43, 83 Base 4, 44a, 44b Roll piece 5, 45 Outer cylinder 6, 46 Inner cylinder 7, 47 Main body part 8, 48 Joint part A
9, 49, 86 Joint B
10, 50 Outer hole portion 11, 51 Shaft body portion 12, 52, 85 Bearing portion A
13, 53 Bearing B
14, 54 Hollow portion 15, 55 Hollow portion 16, 56 Inner hole portion 17, 57 Fastening bracket 18, 58 Plate 19, 59 Bolt 20, 60 Fluid introduction groove portion 21, 61 Seal member 22, 62 Elastic member 23, 63 Gap 24 , 64 Bearing 25, 65 Opening 26, 66 Through-hole 27, 67 Non-woven fabric 28 Fiber 29, 69 Hole 30, 30 Side edge 31 Bolt hole A
32 Bolt hole B
33 Fitting part 34 Screw 35, 75 Screw part 36, 76 Joint part 37, 77 Gradual change part 68 Notch part
80 Cleaning device 84 Driving means 87 Vacuum pump 88 Piping 89 Rotary joint 90 Film

Claims (7)

In 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, papermaking, or film-like surface to be cleaned, the roll includes a roll unit and The roll part is formed by laminating a substantially annular roll piece made of nonwoven fabric on the outer periphery of the pedestal, and the pedestal has a substantially cylindrical inner cylinder inserted into a hollow outer cylinder. The outer cylinder has a main body portion having an opening and a joint portion A and a joint portion B connected to both ends of the main body portion, and the joint portion A and the joint portion. Part B is formed with a penetrating part, and the penetrating part is communicated with the opening, and an outer hole part communicating with the opening is formed on the outer periphery of the main body part, and the roll part is formed. And the inner cylindrical body includes a shaft body portion in which a hollow portion is formed. A bearing part A and a bearing part B are connected to both ends of the shaft body part, the bearing part A and / or the bearing part B is formed with a hollow part, and the hollow part is communicated with the cavity part. There is an inner hole portion communicating with the cavity portion at a specific location on the outer periphery of the shaft body portion, and the inner hole portion sequentially rotates with the outer hole portion by rotating the outer cylindrical body. A roll that is formed so that a fluid is sucked by applying a vacuum suction force only to a roll portion that is overlapped and located in the vicinity of a portion where the inner hole portion and the outer hole portion overlap each other.   2. The roll according to claim 1, wherein a fluid introduction groove is formed on an outer periphery of the main body, and an outer hole is formed in the fluid introduction groove.   The roll having the configuration according to claim 1, wherein a notch portion is provided on an inner periphery of the roll piece, and the notch portion is continuous in a longitudinal direction of the main body portion, whereby a fluid introduction groove portion is formed, The roll characterized in that the fluid introduction groove is located on the roll side of the hole.   The roll having the configuration according to any one of claims 1 to 3, wherein a seal member that surrounds the inner hole portion is attached to an outer periphery of the shaft body portion, and the seal member is disposed inside the main body portion at least during suction of fluid. A roll characterized by sliding in contact with the circumference.   The roll which consists of a structure of Claim 4 WHEREIN: The elastic member is inserted between the outer periphery of a shaft body part, and a sealing member, The roll characterized by the above-mentioned.   The roll which consists of a structure of any one of Claim 1 to 5 WHEREIN: The opening area of a cavity part is the said shaft body part in the vicinity of the junction part of a shaft body part and the bearing part A and / or the bearing part B. A gradually changing portion is formed so as to be smaller than the opening area of the substantially central portion of the roll.   7. A cleaning apparatus comprising: the roll according to claim 1; drive means for rotationally driving the roll; and a vacuum pump communicated with the bearing part A and / or the bearing part B via a pipe. .

Images