[go: up one dir, main page]

WO2016113803A1 - Dispositif de fabrication de feuille et procédé de fabrication de feuille - Google Patents

Dispositif de fabrication de feuille et procédé de fabrication de feuille Download PDF

Info

Publication number
WO2016113803A1
WO2016113803A1 PCT/JP2015/006278 JP2015006278W WO2016113803A1 WO 2016113803 A1 WO2016113803 A1 WO 2016113803A1 JP 2015006278 W JP2015006278 W JP 2015006278W WO 2016113803 A1 WO2016113803 A1 WO 2016113803A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
heating
unit
temperature
rotating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/006278
Other languages
English (en)
Japanese (ja)
Inventor
永井　芳之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015222776A external-priority patent/JP6707842B2/ja
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to CN201580073080.6A priority Critical patent/CN107109741B/zh
Priority to EP15877759.9A priority patent/EP3246446B1/fr
Priority to US15/516,496 priority patent/US10704198B2/en
Publication of WO2016113803A1 publication Critical patent/WO2016113803A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
    • D06C15/02—Calendering, pressing, ironing, glossing or glazing textile fabrics between co-operating press or calender rolls

Definitions

  • the present invention relates to a sheet manufacturing apparatus and a sheet manufacturing method.
  • Patent Document 1 describes a dry paper making method in which a piece of paper is defibrated with a dry defibrator to form paper.
  • a styrene / butadiene latex emulsion is sprayed onto a mat formed by dry forming fibers, and is heated and squeezed with a heating squeezing roller to obtain a paper-like product.
  • the heating and squeezing roller is configured in multiple stages, and such a multi-stage roller is necessary for applying sufficient heat to the mat to melt the styrene / butadiene latex. it is conceivable that.
  • a heater roller pair is generally used as a means for heating and pressurizing a long shaped body such as a mat, but when the amount of heat to be applied to the mat or the like is large, as in the apparatus described in the cited document 1.
  • a heater roller pair is configured in multiple stages to increase the contact time (contact area) between the roller and the mat or the like.
  • the number of roller pairs increases, making it difficult to reduce the size of the apparatus.
  • nip width a method of increasing the contact area between the roller and the mat or the like, called the nip width, by reducing the hardness of the roller.
  • deterioration of the material (for example, foam) constituting the roller having low hardness becomes remarkable, the life of the roller is shortened, the reliability is lowered, and the maintenance of the apparatus is reduced.
  • the frequency may increase.
  • One of the objects according to some embodiments of the present invention is to provide a sheet manufacturing apparatus having a heating and pressing unit that is efficient in heating and pressing a material and can be downsized.
  • the present invention has been made to solve at least a part of the problems described above, and can be realized as the following aspects or application examples.
  • a sheet manufacturing apparatus having a heating and pressing unit that forms a sheet by heating and pressurizing a material including fibers and a resin
  • the heating and pressing unit includes a rotatable first rotating unit, and a rotatable second rotating unit in contact with the first rotating unit, The material is sandwiched and heated and pressurized by the first rotating part and the second rotating part, It has a heating part which heats at least one peripheral face of the 1st rotation part and the 2nd rotation part.
  • the first rotating part and the second rotating part are roller-shaped
  • the heating unit is a heating roller having a heat source inside,
  • the heating roller may be in contact with at least one outer peripheral surface of the first rotating part and the second rotating part.
  • the heating unit is configured by a heating roller, and the roller-shaped rotating unit is heated from the surface side by the heating unit, so that the thermal efficiency is higher.
  • the diameter of the heating roller may be smaller than the diameter of the first rotating part or the second rotating part with which the heating roller is in contact.
  • the first rotating part or the second rotating part that is in contact with the heating roller is larger than the diameter of the heating roller, the first rotating part can be heated more efficiently.
  • thermoforming rollers There may be a plurality of the heating rollers.
  • the thermal conductivity of the first rotating part is smaller than the thermal conductivity of the second rotating part
  • the heating unit may heat an outer peripheral surface of the first rotating unit.
  • the first rotating part may have a belt shape.
  • the first rotating portion since the first rotating portion has a belt shape, it is easy to increase the nip width, and it is easier to apply heat to the material.
  • the temperatures of the first rotating unit and the second rotating unit may be different from each other.
  • the material is difficult to stick to the first rotating part and the second rotating part, and the material and the sheet can be stably conveyed.
  • a temperature difference between the first rotating unit and the second rotating unit may be 10 ° C. or more.
  • the material is difficult to stick to the first rotating part and the second rotating part, and the material and the sheet can be conveyed more stably.
  • the hardness of the first rotating part is smaller than the hardness of the second rotating part
  • the heating roller may be in contact with the first rotating part
  • heat is supplied from the heating roller to the softer first rotating part, and the contact area between the heating roller and the first rotating part can be increased, so that the efficiency of heat conduction is higher. high.
  • the heating roller is in contact with the outer peripheral surface of the first rotating unit, the surface can be easily heated compared to the case where a heat source is provided inside the first rotating unit.
  • the first rotating part when a heat source is arranged inside the first rotating part, a material that does not easily transfer heat to the peripheral surface of the first rotating part, or when the internal heat source is heated to a high temperature, it melts or deteriorates. Even when the material to be used is adopted, the temperature of the outer peripheral surface can be easily increased by heating on the outer peripheral surface.
  • the heating of the material can be more sufficiently performed.
  • the hardness of the first rotating part may be 40 points or less smaller in Asker-C hardness than the hardness of the second rotating part.
  • the temperature of the first rotating part may be 10 ° C. or higher than that of the second rotating part.
  • the softer first rotating part has a higher temperature
  • the harder second rotating part has a lower temperature. Therefore, the material is lower than the first rotating part and the second rotating part. Is difficult to stick, and the material and the sheet can be conveyed more stably.
  • You may have a control part for controlling the temperature of the said heating part.
  • the heating unit heats at least one of the first rotating unit and the second rotating unit from the outer peripheral surface, and the temperature of the heating unit is controlled, so the surface temperature of the rotating unit is faster. Can be set to the target temperature.
  • a sheet manufacturing apparatus for forming a sheet by heating and pressurizing a material including fiber and resin, A first roller and a second roller having a higher thermal conductivity than the first roller, and a pair of rollers for sandwiching a material between the first roller and the second roller for heating and pressing, A heating unit for heating the outer peripheral surface of the first roller; A control unit for controlling the temperature of the heating unit.
  • the heating unit heats the first roller from the outer peripheral surface, and the temperature of the heating unit is controlled, so that the surface temperature of the first roller can be set to the target temperature earlier, And the lifetime of a 1st roller can be extended compared with the case where it heats from the center side of a 1st roller.
  • the first roller is a roller containing foamed rubber
  • the second roller may be a roller having higher hardness than the first roller
  • the said control part may control the temperature of the said heating part so that the surface temperature of the outer peripheral surface in the conveyance direction of a material of the said 1st roller may become fixed.
  • the first roller can be stably brought into contact with the material at a constant temperature. As a result, heating unevenness of the manufactured sheet can be reduced.
  • the heating unit includes a plurality of heating rollers for heating the outer peripheral surface of the first roller,
  • the controller may control one temperature of the plurality of heating rollers.
  • the heating roller whose temperature is controlled by the control unit may be a roller disposed at a position close to a position where the material is sandwiched in the rotation direction of the first roller.
  • a detection unit for detecting the surface temperature of the outer peripheral surface of the first roller may control the temperature of the heating roller based on an average surface temperature of the outer peripheral surface of the first roller detected by the detection unit during a predetermined period.
  • the control unit determines the target temperature of the heating roller based on the target temperature of the outer peripheral surface of the first roller and the difference between the current temperature of the heating roller and the current temperature of the outer peripheral surface of the first roller. May be determined.
  • the control unit may determine the amount of heat of the heating roller based on a difference between a target temperature of the outer peripheral surface of the first roller and a current temperature.
  • the control unit may determine the target temperature of the heating roller based on a difference between the target temperature of the immediately preceding heating roller and the target temperature of the outer peripheral surface of the first roller and the current temperature.
  • One aspect of the sheet manufacturing method according to the present invention is: Using the above sheet manufacturing apparatus, Controlling the temperature of the heating unit so that the surface temperature of the outer peripheral surface of the first roller on the upstream side in the material conveyance direction is constant; A step of sandwiching a material between the first roller and the second roller and heating and pressing the material.
  • the heating unit heats the first roller from the outer peripheral surface and the temperature of the heating unit is controlled, the surface temperature of the first roller can be set to the target temperature earlier. It is possible to extend the life of the first roller as compared to the case of heating from the center side of the first roller. And since a 1st roller can be stably made to contact with the material of a sheet
  • FIG. 1 is a diagram schematically illustrating a sheet manufacturing apparatus 100 according to the present embodiment.
  • the sheet manufacturing apparatus 100 includes a supply unit 10, a manufacturing unit 102, and a control unit 140, as shown in FIG.
  • the manufacturing unit 102 manufactures a sheet.
  • the manufacturing unit 102 includes a crushing unit 12, a defibrating unit 20, a classifying unit 30, a sorting unit 40, a mixing unit 50, a depositing unit 60, a web forming unit 70, a sheet forming unit 80, and a cutting unit. Part 90.
  • the supply unit 10 supplies raw materials to the crushing unit 12.
  • the supply unit 10 is, for example, an automatic input unit for continuously supplying raw materials to the crushing unit 12.
  • the coarse crushing unit 12 cuts the raw material supplied by the supply unit 10 into pieces by cutting in air.
  • the shape and size of the strip is, for example, a strip of several cm square.
  • the crushing unit 12 has a crushing blade 14, and the charged raw material can be cut by the crushing blade 14.
  • a shredder is used, for example.
  • the raw material cut by the crushing unit 12 is received by the hopper 1 and then transferred (conveyed) to the defibrating unit 20 through the pipe 2.
  • the defibrating unit 20 defibrates the raw material cut by the crushing unit 12.
  • “defibration” means unraveling a raw material (a material to be defibrated) formed by binding a plurality of fibers into individual fibers.
  • the defibrating unit 20 also has a function of separating substances such as resin particles, ink, toner, and a bleeding inhibitor adhering to the raw material from the fibers.
  • the “defibrated material” includes resin particles (resins that bind multiple fibers together), ink, toner, etc. In some cases, additives such as colorants, anti-bleeding materials, and paper strength enhancing agents are included.
  • the shape of the defibrated material that has been unraveled is a string shape or a ribbon shape.
  • the unraveled defibrated material may exist in an unentangled state (independent state) with other undisentangled fibers, or entangled with other undisentangled defibrated material to form a lump. It may exist in a state (a state forming a so-called “dama”).
  • the defibrating unit 20 performs defibration in a dry manner in the atmosphere (in the air). Specifically, an impeller mill is used as the defibrating unit 20.
  • the defibrating unit 20 has a function of generating an air flow that sucks the raw material and discharges the defibrated material. Thereby, the defibrating unit 20 can suck the raw material together with the airflow from the introduction port 22 by the airflow generated by itself, defibrate it, and transport it to the discharge port 24.
  • the defibrated material that has passed through the defibrating unit 20 is transferred to the classifying unit 30 via the tube 3.
  • the classifying unit 30 classifies the defibrated material that has passed through the defibrating unit 20. Specifically, the classifying unit 30 separates and removes relatively small ones or low density ones (resin particles, colorants, additives, etc.) among the defibrated materials. Thereby, the ratio for which the fiber which is a comparatively large or high density thing among defibrated materials can be raised.
  • an airflow classifier is used as the classification unit 30.
  • the airflow classifier generates a swirling airflow and separates it according to the difference in centrifugal force depending on the size and density of what is classified, and the classification point can be adjusted by adjusting the speed and centrifugal force of the airflow.
  • a cyclone, an elbow jet, an eddy classifier, or the like is used as the classification unit 30.
  • a cyclone as shown in the figure can be suitably used as the classifying unit 30 because of its simple structure.
  • the classification unit 30 includes, for example, an inlet 31, a cylindrical part 32 to which the inlet 31 is connected, an inverted conical part 33 that is located below the cylindrical part 32 and continues to the cylindrical part 32, and an inverted conical part 33.
  • the lower discharge port 34 provided in the lower center of the upper portion and the upper discharge port 35 provided in the upper center of the cylindrical portion 32 are provided.
  • the classification unit 30 includes fibers (first classified material) larger than the resin particles and ink particles in the defibrated material, and the defibrated material. Among them, it can be separated into resin particles, colorants, additives, etc. (second classified product) that are smaller than the fibers and have a low density.
  • the first classified product is discharged from the lower discharge port 34 and is introduced into the sorting unit 40 through the pipe 4.
  • the second classified product is discharged from the upper discharge port 35 to the receiving portion 36 through the pipe 5.
  • the sorting unit 40 introduces the first classified product that has passed through the classifying unit 30 from the introduction port 42 and sorts the first classified product according to the length of the fiber.
  • the selection unit 40 for example, a sieve is used.
  • the sorting unit 40 has a net (filter, screen), and includes fibers or particles (those that pass through the net, the first sort) that are smaller than the mesh size included in the first classification, Fibers that are larger than the size of the mesh, undefibrated pieces, and lumps (those that do not pass through the net, second selection) can be separated.
  • the first selection is received by the hopper 6 and then transferred to the mixing unit 50 via the pipe 7.
  • the second selected item is returned to the defibrating unit 20 from the discharge port 44 through the pipe 8.
  • the sorting unit 40 is a cylindrical sieve that can be rotated by a motor.
  • a metal net for example, an expanded metal obtained by extending a cut metal plate, or a punching metal in which a hole is formed in the metal plate by a press machine or the like is used.
  • the mixing unit 50 mixes the first sorted product that has passed through the sorting unit 40 and the additive containing the resin.
  • the mixing unit 50 includes an additive supply unit 52 that supplies the additive, a pipe 54 that conveys the selected product and the additive, and a blower 56.
  • the additive is supplied from the additive supply unit 52 to the pipe 54 via the hopper 9.
  • the tube 54 is continuous with the tube 7.
  • the mechanism which mixes a 1st selection material and an additive is not specifically limited, It may stir with the blade
  • the additive supply unit 52 As the additive supply unit 52, a screw feeder as shown in FIG. 1 or a disk feeder (not shown) is used.
  • the additive supplied from the additive supply unit 52 includes a resin for binding a plurality of fibers. At the time when the resin is supplied, the plurality of fibers are not bound. The resin melts when passing through the sheet forming portion 80 and binds a plurality of fibers.
  • the resin supplied from the additive supply unit 52 is a thermoplastic resin or a thermosetting resin.
  • a thermoplastic resin or a thermosetting resin for example, AS resin, ABS resin, polypropylene, polyethylene, polyvinyl chloride, polystyrene, acrylic resin, polyester resin, polyethylene terephthalate, Polyphenylene ether, polybutylene terephthalate, nylon, polyamide, polycarbonate, polyacetal, polyphenylene sulfide, polyether ether ketone, and the like. These resins may be used alone or in combination.
  • the additive supplied from the additive supply unit 52 may be fibrous or powdery.
  • the additive supplied from the additive supply unit 52 prevents coloring of the fibers and the aggregation of the fibers depending on the type of sheet to be produced.
  • An anti-agglomeration material, a flame retardant for making the fiber and the like difficult to burn may be included.
  • the mixture (mixture of the first classified product and the additive) that has passed through the mixing unit 50 is transferred to the deposition unit 60 via the pipe 54.
  • the deposition unit 60 introduces the mixture that has passed through the mixing unit 50 from the introduction port 62, loosens the entangled defibrated material (fibers), and lowers it while dispersing it in the air. Furthermore, when the additive resin supplied from the additive supply unit 52 is fibrous, the deposition unit 60 loosens the entangled resin. Thereby, the deposition unit 60 can deposit the mixture on the web forming unit 70 with good uniformity.
  • Rotating cylindrical sieve is used as the accumulation unit 60.
  • the deposition unit 60 has a net, and drops fibers or particles (those that pass through the net) included in the mixture that has passed through the mixing unit 50 that are smaller than the mesh opening size.
  • the configuration of the deposition unit 60 is the same as the configuration of the sorting unit 40, for example.
  • the “sieving” of the accumulation unit 60 may not have a function of selecting a specific object. That is, the “sieving” used as the depositing unit 60 means that the net is provided, and the depositing unit 60 may drop all of the mixture introduced into the depositing unit 60.
  • the web forming unit 70 deposits the passing material that has passed through the depositing unit 60 to form the web W.
  • the web forming unit 70 includes, for example, a mesh belt 72, a tension roller 74, and a suction mechanism 76.
  • the mesh belt 72 accumulates the passing material that has passed through the opening (opening of the mesh) of the accumulation unit 60 while moving.
  • the mesh belt 72 is stretched by a stretching roller 74, and is configured to allow air to pass therethrough.
  • the mesh belt 72 moves as the stretching roller 74 rotates. While the mesh belt 72 continuously moves, the passing material that has passed through the accumulation portion 60 is continuously piled up, whereby the web W is formed on the mesh belt 72.
  • the mesh belt 72 is made of, for example, metal, resin, cloth, or non-woven fabric.
  • the suction mechanism 76 is provided below the mesh belt 72 (on the side opposite to the accumulation unit 60 side).
  • the suction mechanism 76 can generate an air flow directed downward (air flow directed from the accumulation unit 60 toward the mesh belt 72).
  • the suction mechanism 76 By the suction mechanism 76, the mixture dispersed in the air by the deposition unit 60 can be sucked onto the mesh belt 72. Thereby, the discharge speed from the deposition part 60 can be increased.
  • the suction mechanism 76 can form a downflow in the dropping path of the mixture, and can prevent the defibrated material and additives from being entangled during the dropping.
  • the web W in a soft and inflated state containing a large amount of air is formed by passing through the depositing section 60 and the web forming section 70 (web forming process).
  • the web W deposited on the mesh belt 72 is conveyed to the sheet forming unit 80.
  • a humidity control unit 78 that adjusts the humidity of the web W is provided.
  • the humidity control unit 78 can adjust the amount ratio of the web W and water by adding water or water vapor to the web W.
  • the sheet forming unit 80 forms the sheet S by heating and pressing the web W deposited on the mesh belt 72.
  • the sheet forming unit 80 by heating the mixture of the defibrated material and the additive mixed in the web W, the plurality of fibers in the mixture are bound to each other via the additive (resin). Can do.
  • the sheet forming unit 80 for example, a heating roller (heater roller), a hot press molding machine, a hot plate, a hot air blower, an infrared heater, or a flash fixing device is used.
  • the sheet forming unit 80 includes a pair of heater rollers 86.
  • the heater roller 86 By configuring the sheet forming unit 80 as the heater roller 86, it is possible to form the sheet S while continuously conveying the web W as compared to a case where the sheet forming unit 80 is configured as a plate-like pressing device (flat plate pressing device).
  • the number of heater rollers 86, the number of stages, etc. are not particularly limited.
  • the pair of heater rollers 86 of the sheet forming unit 80 may be pressurized in addition to heating the web W, and may function as a heating and pressing unit. Further, the sheet forming unit 80 may include a pair of pressure rollers (not shown) that perform only pressure without heating the web W. Note that details of a case where the sheet forming unit 80 is a heating and pressing unit including a pair of rollers that sandwich the web W (portion surrounded by a broken line in FIG. 1) will be described later.
  • the cutting unit 90 cuts the sheet S formed by the sheet forming unit 80.
  • the cutting unit 90 includes a first cutting unit 92 that cuts the sheet S in a direction that intersects the conveyance direction of the sheet S, and a second cutting unit 94 that cuts the sheet S in a direction parallel to the conveyance direction. ,have.
  • the second cutting unit 94 cuts the sheet S that has passed through the first cutting unit 92, for example.
  • a single-sheet sheet S having a predetermined size is formed.
  • the cut sheet S is discharged to the discharge unit 96.
  • the sheet manufacturing apparatus of the present embodiment forms the sheet S by heating and pressing the web W in the above-described sheet forming unit 80.
  • the web W is formed by the deposition unit 60 using a material containing fibers and resin.
  • the sheet forming unit 80 is a heating and pressing unit that heats and presses the web W.
  • the heating and pressing unit is simply illustrated as a pair of heater rollers 86.
  • the heating and pressing unit 180 includes a rotatable first rotating unit 181, a rotatable second rotating unit 182, and a heating unit 183. 2, 4 and 5 are diagrams schematically showing an example of the heating and pressing unit of the present embodiment.
  • first rotating unit 181 and the second rotating unit 182 are both outer peripheral surfaces that move with rotation. And part of the outer peripheral surface is arranged in contact with each other.
  • the web S is sandwiched and heated and pressed by the first rotating unit 181 and the second rotating unit 182 to form the sheet S.
  • the heating unit 183 is disposed so as to heat at least one outer peripheral surface of the first rotating unit 181 and the second rotating unit 182.
  • Examples of the shapes of the first rotating unit 181 and the second rotating unit 182 include a roller shape and a belt shape. Both the first rotating part 181 and the second rotating part 182 may be roller-shaped, one may be roller-shaped and the other belt-shaped, or both may be belt-shaped. In the example shown in FIG.2 and FIG.4, both the 1st rotation part 181 and the 2nd rotation part 182 are roller shapes. In the example shown in FIG. 5, one of the first rotating part 181 and the second rotating part 182 has a belt shape and the other has a roller shape.
  • both the 1st rotation part 181 and the 2nd rotation part 182 are roller shapes
  • the web W is pinched
  • the rotation center axis of the roller is arranged in parallel at such an interval as to take up.
  • power may be applied to one of the rollers to be an active roller (drive roller), or both may be active rollers.
  • the other may be a driven roller.
  • the diameter of a roller is arbitrary.
  • a diameter may mutually be same or different.
  • the diameter of the roller means a diameter of a cross section perpendicular to the rotation center axis of the roller.
  • the area that contacts the rotating part when the web W is sandwiched can be increased.
  • the area in contact with the rotating portion when the web W is sandwiched is the length of the area in contact with the web W in the direction along the rotation center axis of the roller and the length of the area in contact with the web W in the direction along the outer periphery of the roller. (Which may be regarded as a straight line approximately). In the present specification, the length of the region in contact with the web W in the direction along the outer periphery of the roller may be referred to as “nip width”.
  • the web W is sandwiched between the belt and the roller.
  • the belt is brought into pressure contact with the roller with such a tension that pressure is applied to W. This is preferable because the area in contact with the rotating portion when the web W is sandwiched can be increased.
  • the heating unit 183 can heat the outer peripheral surface of the first rotating unit 181 or the second rotating unit 182, the mode is arbitrary, and the heating unit 183 contacts the outer peripheral surface of the first rotating unit 181 or the second rotating unit 182. May be heated or may be heated without contact.
  • the heating unit 183 is configured by a heating roller whose outer peripheral surface is in contact with the outer peripheral surface of the first rotating unit 181.
  • the heating unit 183 is configured by an electric heater that is disposed apart from the outer peripheral surface of the first rotating unit 181 (belt shape).
  • a plurality of heating units 183 may be provided, or a mode of heating by contact may be combined with a mode of heating without contact.
  • Examples of the heating unit 183 that contacts the outer circumferential surface of the first rotating unit 181 or the second rotating unit 182 include a hot plate in addition to a heating roller (heater roller).
  • heating by radiant heat such as an electric heater or a halogen heater, microwave heating, IH heating, hot air heating, etc. Is mentioned.
  • the outer peripheral surface heated by the heating unit 183 can be at least one of the first rotating unit 181 and the second rotating unit 182.
  • the heating unit 183 heats the outer peripheral surface of the rotating unit, the rotating unit does not need to include a heat source such as a heater inside the rotating unit. However, even in this case, a heat source may be provided inside the rotating unit.
  • the second rotating part 182 is a heating roller having a heat source H at the center of rotation.
  • the first rotating part 181 includes a flexible material
  • the nip width can be increased even if the second rotating part 182 is formed of a hard material such as metal. Therefore, in the second rotating unit 182, since the deterioration of the material of the roller hardly occurs, the reliability is not easily lost even if the heat source H is arranged near the rotation center.
  • FIG. 2 shows a heating and pressurizing unit that is the sheet forming unit 80 as a roller-shaped first rotating unit 181, a roller-shaped second rotating unit 182, and a roller-shaped heating unit.
  • 6 is a schematic diagram illustrating an example configured by a unit 183.
  • the heating unit 183 is a heating roller, and the heating roller is configured to be in contact with the roller-shaped first rotating unit 181 so as to heat the outer peripheral surface of the first rotating unit 181.
  • the 1st rotation part 181 is in contact with the roller-shaped 2nd rotation part 182, and the web W is inserted in the said contact part.
  • the web W is heated and pressurized by the 1st rotation part 181 and the 2nd rotation part 182 rotating, it is conveyed, and the sheet
  • the first rotating portion 181 includes a cored bar 184 at the center of rotation and a soft body 185 arranged so as to surround the periphery thereof.
  • the core metal 184 is made of a metal such as aluminum, iron, or stainless steel
  • the soft body 185 is made of, for example, silicon rubber, urethane rubber, fluorine rubber, nitrile rubber, butyl rubber, acrylic rubber, or the like.
  • the soft body 185 may be such a rubber foam.
  • the roller-shaped first rotating portion 181 may be entirely constituted by the soft body 185 without including the cored bar 184 within a range in which the mechanical strength can be maintained.
  • the surface of the first rotating portion 181 is not shown with a fluorine-containing layer such as PFA (tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer) or PTFE (polytetrafluoroethylene) or a fluorine coating such as PTFE.
  • a release layer may be provided.
  • the second rotating unit 182 and the heating unit 183 are configured by heating rollers.
  • the heating roller is composed of a hollow cored bar 187 made of aluminum, iron, stainless steel or the like. Further, on the surface of the heating roller, a layer containing fluorine such as PFA or PTFE or a release layer 188 of fluorine coating such as PTFE is provided.
  • the release layer 188 can be provided as necessary.
  • An elastic layer made of silicon rubber, urethane rubber, cotton, or the like may be provided between the cored bar 187 and the release layer 188.
  • a halogen heater is provided as a heat source H inside the heating roller (inside the cored bar 187).
  • the heat source H is controlled so that the surface temperature of the heating roller is maintained at a predetermined temperature.
  • the heat source H is not limited to a halogen heater or the like, and for example, heating by a non-contact heater or heating by hot air may be used.
  • the configurations of the second rotating unit 182 and the heating unit 183 may be the same as or different from each other.
  • the load that presses the rollers of the first rotating unit 181, the second rotating unit 182, and the heating unit 183 in the example of FIG. 2 is not particularly limited, and a predetermined pressure can be applied to the web W or the sheet S. It is appropriately set within a range in which predetermined heat can be applied from the heating unit 183 to the one rotating unit 181.
  • FIG. 3 is an enlarged schematic view showing a portion where the first rotating part 181 and the second rotating part 182 in the aspect of FIG. 2 are in contact with each other.
  • the first rotating part 181 of one of the pair of rollers includes the soft body 185, the first rotating part 181 and the second rotating part 182 are brought into pressure contact with each other to perform the first rotation.
  • the contact surface of the part 181 is easier to deform than the contact surface of the second rotating part 182.
  • the nip width when the web W or the sheet S is heated and pressurized can be increased by the deformation of the first rotating unit 181.
  • the contact area can be increased as compared with the case where the first rotating part 181 and the second rotating part 182 have the same hardness, the web W and the sheet S can be heated more efficiently.
  • the nip width when the nip width is increased, it is preferable that there is a difference in hardness between the first rotating part 181 and the second rotating part 182, for example, Asker-C hardness (Japan Rubber Association Standard: SRIS). ⁇ 0101-1968), it is preferable that there is a difference of 30 points or more, preferably 40 points or more, more preferably 50 points or more. If the difference in hardness is within this range, the nip width can be easily set to, for example, 10 mm to 40 mm, preferably 15 mm to 30 mm, and more preferably 15 mm to 25 mm.
  • the surface pressure for example 0.1 kgf / mm 2 or more 10 kgf / mm 2 or less, preferably 0.5 kgf / mm 2 or more 5 kgf / mm 2 or less More preferably, it is easy to set to 1 kgf / mm 2 or more and 3 kgf / mm 2 or less.
  • FIG. 4 is a diagram schematically illustrating an aspect in which a plurality of heating units 183 are in contact with the outer peripheral surface of the first rotating unit 181. As shown in FIG. 4, by providing a plurality of heating units 183, it is easier to heat the outer peripheral surface of the first rotating unit 181 even when the hardness of the first rotating unit 181 is small.
  • the outer peripheral surface of only the first rotating part 181 is heated by the heating part 183, but a heating part for heating the outer peripheral part of the second rotating part 182 may be provided.
  • only the first rotating unit 181 includes the soft body 185, but the second rotating unit 182 also includes a roller including the soft body 185 (for example, similar to the first rotating unit 181). May be adopted. In this way, the nip width can be further increased.
  • the first rotating unit 181 includes the soft body 185 as in the example of FIG. 2, even when the heating unit 183 is configured by a heating roller having high hardness, the contact area between the two can be increased. Therefore, the efficiency of heating the outer peripheral surface of the first rotating part 181 can be increased.
  • FIG. 5 is a schematic diagram illustrating an example in which the heating and pressing unit that is the sheet forming unit 80 includes a belt-shaped first rotating unit 181, a roller-shaped second rotating unit 182, and a non-contact heating unit 183. .
  • the heating unit 183 is an electric heater, and is configured so that the outer peripheral surface of the belt-shaped first rotating unit 181 can be heated by radiant heat from the heater. Moreover, the 1st rotation part 181 is in contact with the roller-shaped 2nd rotation part 182, and the web W is inserted in the said contact part. And the web W is heated and pressurized by the 1st rotation part 181 and the 2nd rotation part 182 rotating, it is conveyed, and the sheet
  • the material of the belt is not particularly limited, but may include, for example, metal, rubber, fiber, and the like.
  • the material of the belt is appropriately designed as long as the mechanical strength when the belt is stretched by the stretching roller 189 and the pressure contact force against the second rotating part 182 can be maintained.
  • first rotating portion 181 is a belt
  • a layer containing fluorine such as PFA (tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer) or PTFE (polytetrafluoroethylene), PTFE, or the like is used on the surface.
  • a release layer (not shown) of fluorine coating may be provided.
  • the second rotating unit 182 in the example of FIG. 5 is configured by a heating roller.
  • the heating roller is the same as the example in FIGS.
  • the heating unit 183 in the example of FIG. 5 is an electric heater that heats the outer peripheral surface of the belt.
  • heating by radiant heat using a halogen heater or the like, microwave heating, hot air heating, or the like may be applied.
  • IH heating can also be applied.
  • a hot plate or the like may be applied in addition to a heating roller (heater roller) that contacts the outer peripheral surface of the belt.
  • the roller (second rotating portion 182) is in pressure contact with the stretched belt (first rotating portion 181).
  • the tension roller 189 may be in pressure contact with the roller (second rotating portion 182) via a belt.
  • the first rotating unit 181 may be used in combination with other rollers.
  • the load that presses the first rotating portion 181 and the second rotating portion 182 in the example of FIG. 5 is not particularly limited, and a predetermined pressure can be applied to the web W or the sheet S, and the first rotating portion 181 can be applied to the first rotating portion 181. It is appropriately set within a range in which predetermined heat can be applied from the heating unit 183.
  • the temperature of the first rotating unit and the second rotating unit When the sheet manufacturing apparatus 100 is operated to manufacture the sheet S, the heat applied to the web W in the sheet forming unit 80 is generated by the fibers in the web W due to the additives. It is set appropriately as long as it can be bound and does not cause deterioration of the material. Therefore, as long as such a function can be exhibited, the temperatures of the first rotating unit 181 and the second rotating unit 182 of the sheet forming unit 80 (pressure heating unit) can be arbitrarily set.
  • the temperature of the rotating portion refers to the temperature of the outer surface when contacting the web W, but may be an average temperature of the entire outer surface of the rotating portion as long as the heat capacity of the rotating portion is large.
  • the temperatures of the first rotating unit 181 and the second rotating unit 182 when forming the sheet S may be the same or different. If the temperature of the first rotating unit 181 and the second rotating unit 182 when forming the sheet S is set to be the same, heat can be applied evenly from both sides to the web W or the sheet S. In some cases, it can be suppressed.
  • the temperatures of the first rotating unit 181 and the second rotating unit 182 when forming the sheet S are set to different temperatures, a temperature difference can be generated in the thickness direction of the sheet S, and the surface temperature is high.
  • the shrinkage amount due to heat increases and the sheet S tends to warp toward the surface having a higher surface temperature, the sheet S is prevented from sticking to the first rotating part 181 or the second rotating part 182.
  • the temperature of both is 5 ° C. or higher, preferably 7 ° C. or higher, more preferably 10
  • the temperature difference is at least 15 ° C, more preferably at least 15 ° C. In this case, the sheet S may be less likely to be stuck by the first rotating unit 181 or the second rotating unit 182.
  • the temperature of the rotation part (for example, the 2nd rotation part 182 in the example of FIG.2, FIG4 and FIG.5) which has higher hardness. It is preferable to lower the value. By doing so, the sheet S tends to follow the rotating part having a higher hardness due to deformation due to the hardness difference of the rotating part, and the surface temperature of the sheet S is high due to the temperature difference in the thickness direction of the sheet S. Since the tendency to warp toward the surface side is offset, it may be possible to suppress the sheet S from sticking to the rotating part having higher hardness.
  • the first rotating unit 181 and / or the second rotating unit 182 is heated by the heating unit 183, the first rotating unit 181 and / or the second rotating unit 182 is rotated toward the center of rotation. There is no need to arrange the heat source H. If it does so, since the outer peripheral surface which contacts the web W and the sheet
  • the soft body 185 is pressed against the heating unit 183.
  • the contact area between the first rotating part 181 and / or the second rotating part 182 and the heating part 183 can be increased.
  • the heat transfer efficiency from the heating unit 183 to the first rotating unit 181 and / or the second rotating unit 182 can be increased.
  • the outer diameter of the first rotating part 181 and / or the second rotating part 182 is larger than the outer diameter of the heating part 183 (the first rotating part 181 in which the outer diameter of the heating roller of the heating part 183 contacts as a heating target). Or it is smaller than the outer diameter of the roller of the 2nd rotation part 182), and it can heat more efficiently.
  • a roller including a soft body 185 is employed for the first rotating part 181 and / or the second rotating part 182, and the material of the soft body 185 is a polymer compound such as a silicon resin, a urethane resin, or a fluorine resin. In some cases, degradation due to heat is considered.
  • the heat source H of the roller is provided near the rotation center, the temperature near the rotation center is controlled to a higher temperature in order to control the temperature of the outer surface of the roller to a predetermined temperature.
  • the heating unit 183 is in contact with the outer peripheral surface of the first rotating unit 181 and / or the second rotating unit 182, so that the inside of the first rotating unit 181 and / or the second rotating unit 182 is inside. Compared with the case where the heat source H is provided in the surface, the surface is easily heated to a high temperature.
  • the first rotating part 181 or the second rotating part 182 when a heat source is arranged inside the rotating part, a material that does not easily transfer heat to the peripheral surface of the rotating part, or melts when the internal heat source is heated to a high temperature.
  • a material that deteriorates for example, foamed urethane or the like in the example of the soft body 185 described above
  • heat can be transferred from the central portion that becomes higher temperature by heating on the outer peripheral surface. Therefore, it is difficult to cause deterioration of the material, and it is easy to raise the temperature of the outer peripheral surface. Therefore, if such a heating and pressing unit is employed in the sheet manufacturing apparatus, the life is long and the reliability can be improved.
  • the nip width when the sheet is heated and pressed when the material is sandwiched is made higher than the rollers having high hardness are brought into contact with each other. Therefore, the material can be heated more sufficiently.
  • first rotating unit the second rotating unit
  • heating unit can be appropriately combined.
  • Each number is also arbitrary and can be appropriately configured.
  • the sheet manufacturing apparatus is a sheet manufacturing apparatus that forms a sheet by heating and pressurizing a material including fibers and a resin.
  • the first roller and the first roller having higher thermal conductivity than the first roller.
  • the heating unit 183 described above is a heating roller (heating unit) that contacts the first roller 191 and heats the outer peripheral surface of the first roller 191, and three heating rollers for one first roller 191. 193a, the heating roller 193b, and the heating roller 193c are in contact with each other.
  • FIG. 6 is a schematic diagram illustrating an example of a configuration of a sheet forming unit 80 (heating and pressing unit) for performing temperature control according to the embodiment.
  • each of the first roller 191 and the second roller 192 has an outer peripheral surface that moves with rotation, and a part of the outer peripheral surface is disposed in contact with each other. Then, the web S is sandwiched between the first roller 191 and the second roller 192 and heated and pressed to form the sheet S.
  • the first roller 191 is made of a material including foamed rubber 195 (corresponding to the soft body 185 described above), and the foam core disposed around the core metal 194 at the center of rotation. And rubber 195.
  • the second roller 192 has a structure in which a release layer 198 is formed on the outer peripheral surface of a metal core bar 197. Therefore, the thermal conductivity of the first roller 191 including the foamed rubber 195 is lower than that of the second roller 192. Further, the surface hardness of the first roller 191 including the foamed rubber 195 is lower than that of the second roller 192.
  • first roller 191 and the second roller 192 are both roller-shaped, at intervals such that pressure is applied to the web W when the web W is sandwiched between the rollers,
  • the rotation center axis of the roller is arranged in parallel.
  • Each heating roller 193a, the heating roller 193b, and the heating roller 193c are in contact with the outer peripheral surface of the first roller 191 of the first roller 191 to heat.
  • a halogen heater is provided as a heat source H inside each heating roller 193a, heating roller 193b, and heating roller 193c (inside the cored bar 197).
  • the amount of heat (energy) given to the heat source H is controlled so that the surface temperature of the heating roller becomes a predetermined temperature.
  • the thermistors 199 are provided so as to be in contact with the surfaces of the heating roller 193 c and the first roller 191 as detection units for detecting the temperature of the outer peripheral surface of each roller.
  • the thermistor 199 detects the temperature of the portion of the roller that is in contact and sends a signal.
  • a thermistor (not shown) is also provided on the surface of the heating roller 193a, the heating roller 193b, or the second roller 192.
  • each roller may be provided with a plurality of thermistors.
  • Each heating roller, first roller 191, second roller 192, and each thermistor 199 are connected to a control unit (not shown) to control the rotation and temperature of each roller.
  • a control unit not shown
  • the surface temperature of the first roller 191 is predetermined by controlling at least one of these heating rollers as described below. The temperature is controlled so that
  • the first roller 191 is provided with a thermistor 199 on the upstream side in the material conveyance direction. That is, the thermistor 199 provided on the first roller 191 detects the temperature just before the first roller 191 contacts the material (web W) (immediately before the surface temperature of the outer peripheral surface on the upstream side in the material conveyance direction). ing. And a control part controls the temperature of the heating roller 193c so that the surface temperature of the 1st roller 191 in the position concerned becomes constant. The temperature of the heating roller 193c is controlled by adjusting the energy (heat amount) given to the heat source H of the heating roller 193c based on a signal from the control unit.
  • first roller 191 of this embodiment Several examples of temperature control of the first roller 191 of this embodiment will be described below.
  • the first roller 191 comes into contact with the material (web W) at a predetermined temperature
  • the heat of the surface is taken and the surface temperature of the outer peripheral surface decreases.
  • the outer peripheral surface comes into contact with the heating roller and is heated, and then returned to a predetermined temperature until it comes into contact with the material.
  • the heat taken away from the first roller 191 is consumed by, for example, melting of the resin or evaporation of moisture.
  • the heating roller 193c disposed at a position farther from the position where the material is sandwiched in the rotation direction of the first roller 191. To control the temperature.
  • Control method 1 As an example of the control method, control based on the following control equation (1) will be described.
  • Q k 1 ⁇ T m, t + k 2 (T e, c ⁇ T m, c ) ⁇ T e, c ⁇ (1)
  • Q is the amount of heat (energy) applied to the heating roller 193c
  • T is the surface temperature of the roller represented by the subscript (obtained by each thermistor 199)
  • k 1 and k 2 are proportional constants.
  • the subscript “m” means the first roller 191
  • e means the heating roller 193c
  • t means the target
  • c means the present.
  • T m, t represents the target temperature of the first roller 191
  • T e, c represents the current temperature of the heating roller 193 c
  • T m, c represents the current temperature of the first roller 191.
  • T m, t + k 2 (T e, c ⁇ T m, c ) represents the target temperature of the heating roller 193c.
  • the amount of heat (target temperature) given to the heating roller 193c is set to the target temperature of the outer peripheral surface of the first roller 191, the current temperature of the heating roller 193c, and the outer peripheral surface of the first roller 191. It is determined based on the difference from the current temperature.
  • the temperature of the part just before contacting the material of the 1st roller 191 can be made to reach target temperature in a shorter time. This also makes it possible to return to the target temperature and stabilize in a shorter time even when disturbance or perturbation occurs, for example, when the amount of heat lost to the material (web W) occurs.
  • Control method 2 As an example of the control method, control based on the following control equation (2) will be described.
  • Equation (2) corresponds to the case where k 2 in Equation (1) is 1. In the control according to the equation (2), it is determined based on the difference between the target temperature of the outer peripheral surface of the first roller 191 and the current temperature.
  • the temperature of the part just before contacting the material of the 1st roller 191 can be made to reach target temperature in a shorter time. This also makes it possible to return to the target temperature and stabilize in a shorter time even when disturbance or perturbation occurs, for example, when the amount of heat lost to the material (web W) occurs.
  • Control method 3 As an example of the control method, control based on the following control equation (3) will be described.
  • Q k 1 ⁇ T e, t, p + k 2 (T m, t ⁇ T m, c ) ⁇ T e, c ⁇ (3)
  • Q is the amount of heat (energy) applied to the heating roller 193c
  • T is the surface temperature of the roller represented by the subscript (obtained by each thermistor 199)
  • k 1 and k 2 are proportional constants.
  • the subscript “e” means the heating roller 193c
  • t means the target
  • p means the previous time
  • c means the current time
  • m means the first roller 191.
  • T e, t, p is the previous target temperature of the heating roller 193 c
  • T m, t is the target temperature of the first roller 191
  • T m, c is the current target temperature of the first roller 191.
  • the temperature “T e, c ” represents the current temperature of the heating roller 193c.
  • T e, t, p + k 2 (T m, t ⁇ T m, c )” represents the current target temperature of the heating roller 193c.
  • the control by the expression (3) is based on the difference between the target temperature of the heating roller 193c and the target temperature of the immediately preceding (previous) heating roller 193c and the target temperature of the outer peripheral surface of the first roller 191 and the current temperature. It is to be decided. Further, the control of Expression (3) is so-called sequential integration control.
  • the temperature of the part just before contacting the material of the 1st roller 191 can be made to reach target temperature in a shorter time. This also makes it possible to return to the target temperature and stabilize in a shorter time even when disturbance or perturbation occurs, for example, when the amount of heat lost to the material (web W) occurs. Furthermore, according to the control according to the expression (3), the temperature of the heating roller 193c does not increase extremely, so that the life of each roller or heater can be extended.
  • the control unit controls the temperature of the heating roller 193c based on the average surface temperature of the outer peripheral surface of the first roller 191 detected by the detection unit (thermistor 199) during a predetermined period. Also good. Specifically, in any of the control methods 1 to 3, “T m, c ”, that is, the current temperature of the outer peripheral surface of the first roller 191 may be set as the average temperature for a predetermined period.
  • the predetermined period is, for example, the past 30 seconds from the measurement (detection) time point, preferably 20 seconds, more preferably 10 seconds, and further preferably 5 seconds.
  • the predetermined period may be determined by the number of rotations of the first roller 191. For example, the past three rotations, preferably two rotations, more preferably one rotation, and even more preferably 0.5 from the time of measurement (detection). It is a rotation.
  • the first roller 191 includes the foamed rubber, the heat insulation is high (the thermal conductivity is low), and the temperature correlation between the different positions in the circumferential direction is small. In other words, since the first roller 191 has a large heat conduction resistance, it is difficult for heat to be transmitted and the first roller 191 does not easily have a uniform temperature in the circumferential direction. For this reason, it may be inappropriate to simply apply feedback to the amount of heat of the heating roller 193c based on only the temperature detected by the thermistor 199 provided at one place on the outer peripheral surface of the first roller 191.
  • the average temperature in the circumferential direction of the outer peripheral surface of the first roller 191 is brought closer to the target temperature by controlling the temperature of the heating roller 193c based on the average temperature of the outer peripheral surface of the first roller 191. be able to.
  • the temperature control of the heating roller 193c disposed at the position closest to the position where the material is sandwiched in the rotation direction of the first roller 191 among the three heating rollers has been described.
  • Such control can be applied to at least one of the heating roller 193a, the heating roller 193b, and the heating roller 193c, but when applied to the heating roller 193c as described above, the position where the first roller 191 contacts the material. Because it is close to, it is more efficient.
  • FIGS. 7 to 10 are graphs showing changes with time in the surface temperatures of the heating roller 193c and the first roller 191 obtained by experiments.
  • changes with time in the surface temperatures of the heating roller 193c and the first roller 191 according to each of the above control methods in the arrangement of the first roller 191, the heating roller 193c, and the thermistor 199 configured as shown in FIG. 6 were measured.
  • the thermal conductivity of the first roller 191 is 0.05 (unit: W / (m / k)), the diameter is 70 (mm), the length is 340 (mm), and the heating roller 193c is The diameter was 20 (mm) and the length was 340 (mm).
  • the temperature of the outer peripheral surface of the 1st roller 191 was made into the average temperature for the last 5 seconds.
  • the target temperature of the first roller 191 was 180 ° C.
  • FIG. 7, FIG. 8, and FIG. 9 show the results of controlling the temperature of the outer peripheral surface of the first roller 191 using the above-described formulas (1), (2), and (3) of the present embodiment, respectively.
  • FIG. 10 shows the results when the target temperature of the heating roller 193c is 205 ° C.
  • the control equations (1) to (3) are used, the temperature of the portion immediately before contacting the material of the first roller 191 can reach the target temperature in a shorter time. Further, for example, when a disturbance or perturbation occurs, such as when the amount of heat lost to the material (web W) occurs, it can be expected that the target temperature can be returned to and stabilized in a shorter time. Furthermore, it has been found that if the control equations (2) and (3) are used, the temperature of the heating roller 193c does not increase extremely, so that the life of the heating roller 193c and the first roller 191 can be extended.
  • the present invention includes configurations that are substantially the same as the configurations described in the embodiments (configurations that have the same functions, methods, and results, or configurations that have the same objects and effects).
  • the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced.
  • the present invention includes a configuration that exhibits the same operational effects as the configuration described in the embodiment or a configuration that can achieve the same object.
  • the invention includes a configuration in which a known technique is added to the configuration described in the embodiment.
  • mold release Layer 191 ... first roller, 192 ... second roller, 193 ... heating roller, 194 ... core metal, 195 ... foam rubber, 197 ... core metal, 198 ... release layer, 199 ... thermistor, S ... sheet, W ... Web, H ... heat source.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

La présente invention vise à fournir un dispositif de fabrication de feuille comprenant une section de chauffage/mise sous pression qui a une grande efficacité de chauffage et de mise sous pression d'un matériau, et une taille réduite. Ledit dispositif de fabrication de feuille comprend une section de chauffage/mise sous pression qui forme une feuille par chauffage et mise sous pression d'un matériau contenant une fibre et une résine. La section de chauffage/mise sous pression comprend une première section de rotation rotative, et une seconde section de rotation rotative en contact avec la première section de rotation, chauffe et met sous pression le matériau en prenant en sandwich le matériau au moyen de la première section de rotation et de la seconde section de rotation, et comprend une section de chauffage qui chauffe la surface périphérique externe de la première section de rotation et/ou de la seconde section de rotation.
PCT/JP2015/006278 2015-01-13 2015-12-16 Dispositif de fabrication de feuille et procédé de fabrication de feuille Ceased WO2016113803A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201580073080.6A CN107109741B (zh) 2015-01-13 2015-12-16 薄片制造装置以及薄片制造方法
EP15877759.9A EP3246446B1 (fr) 2015-01-13 2015-12-16 Dispositif de fabrication de feuille et procédé de fabrication de feuille
US15/516,496 US10704198B2 (en) 2015-01-13 2015-12-16 Sheet manufacturing apparatus and sheet manufacturing method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2015-003937 2015-01-13
JP2015003937 2015-01-13
JP2015222776A JP6707842B2 (ja) 2015-01-13 2015-11-13 シート製造装置及びシート製造方法
JP2015-222776 2015-11-13

Publications (1)

Publication Number Publication Date
WO2016113803A1 true WO2016113803A1 (fr) 2016-07-21

Family

ID=56405372

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/006278 Ceased WO2016113803A1 (fr) 2015-01-13 2015-12-16 Dispositif de fabrication de feuille et procédé de fabrication de feuille

Country Status (1)

Country Link
WO (1) WO2016113803A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018043176A1 (fr) * 2016-08-31 2018-03-08 セイコーエプソン株式会社 Dispositif de fabrication de nappe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61231296A (ja) * 1985-01-25 1986-10-15 メジユアレツクス、コ−ポレ−シヨン カレンダロ−ル制御装置
JP2002536564A (ja) * 1999-02-09 2002-10-29 エスジーエム エス．ピー．エー． ロール間の接触圧力を調整する磁気装置を備えたカレンダ
JP2007514067A (ja) * 2003-12-10 2007-05-31 メッツォ ペーパー インコーポレイテッド 繊維状ウェブを処理するための装置における稼働パラメータを制御する方法及びその方法を提供するための機器
JP2009150045A (ja) * 2002-01-29 2009-07-09 Metso Paper Inc 処理装置におけるプレスにより紙／ボード紙ウェブを乾燥させる方法
JP2014208927A (ja) * 2013-03-27 2014-11-06 セイコーエプソン株式会社 シート製造装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61231296A (ja) * 1985-01-25 1986-10-15 メジユアレツクス、コ−ポレ−シヨン カレンダロ−ル制御装置
JP2002536564A (ja) * 1999-02-09 2002-10-29 エスジーエム エス．ピー．エー． ロール間の接触圧力を調整する磁気装置を備えたカレンダ
JP2009150045A (ja) * 2002-01-29 2009-07-09 Metso Paper Inc 処理装置におけるプレスにより紙／ボード紙ウェブを乾燥させる方法
JP2007514067A (ja) * 2003-12-10 2007-05-31 メッツォ ペーパー インコーポレイテッド 繊維状ウェブを処理するための装置における稼働パラメータを制御する方法及びその方法を提供するための機器
JP2014208927A (ja) * 2013-03-27 2014-11-06 セイコーエプソン株式会社 シート製造装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3246446A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018043176A1 (fr) * 2016-08-31 2018-03-08 セイコーエプソン株式会社 Dispositif de fabrication de nappe
JPWO2018043176A1 (ja) * 2016-08-31 2018-10-25 セイコーエプソン株式会社 シート製造装置
US11298725B2 (en) 2016-08-31 2022-04-12 Seiko Epson Corporation Sheet manufacturing apparatus

Similar Documents

Publication Publication Date Title
JP2016130009A (ja) シート製造装置及びシート製造方法
EP3375924B1 (fr) Dispositifs de fabrication de feuille et procédés de fabrication de feuille
JP6828691B2 (ja) シート製造装置、シート製造装置の制御方法、シート製造方法
US10843386B2 (en) Sheet manufacturing apparatus and sheet manufacturing method
JP6604428B2 (ja) シート製造装置
JP6617405B2 (ja) シート製造装置およびシート製造方法
JP2016141031A (ja) シート製造装置およびシート製造方法
JPWO2017038077A1 (ja) シート製造装置およびシート製造方法
JP2017014661A (ja) シート製造装置、シート製造方法及びシート製造装置の制御方法
JP2017154341A (ja) シート製造装置、シート製造方法
WO2016113803A1 (fr) Dispositif de fabrication de feuille et procédé de fabrication de feuille
US11214924B2 (en) Vaporization type humidification unit, control method of vaporization type humidification unit, and sheet manufacturing apparatus
JP6690656B2 (ja) シート製造装置
JP7739939B2 (ja) シート製造装置の制御方法、およびシート製造装置
JP6888248B2 (ja) シート製造装置、シート製造装置の制御方法
JP2017087520A (ja) シート製造装置およびシート製造方法
JP2016172363A (ja) シート製造装置及びシート製造方法
JP2017094649A (ja) シート製造装置、シート製造方法
JP2018162540A (ja) シート製造装置、及び、シート製造装置の制御方法
WO2018100979A1 (fr) Appareil de fabrication de feuilles
JP2018161819A (ja) シート製造装置、及び、シート製造装置の制御方法
JP2017094525A (ja) シート製造装置
CN117702370A (zh) 薄片制造装置
JP2015183297A (ja) シート製造装置
JP2017065225A (ja) シート製造装置およびシート製造装置における単票状原料の厚さ検出方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15877759

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 15516496

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2015877759

Country of ref document: EP