JP2019105012A - Fiber processing unit and regenerator of raw material of fiber - Google Patents

Abstract

To provide a processing unit capable of picking out fiber included in fiber-containing raw material.SOLUTION: A separation part 30 includes a fiber-containing defibrated product MB, a first mesh 311 for depositing the defibrated product MB as deposit ME, a first separation part 331 for sucking a first face of the deposit ME through the first mesh 311, and a second separation part 332 for depositing the deposit ME on a second mesh 321 by sucking a second face on the opposite side of the first face of the deposit ME through the second mesh 321.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a fiber processing apparatus and a fiber material regenerating apparatus.

  Conventionally, there is known a method of regenerating a raw material containing fibers such as waste paper (see, for example, Patent Document 1). In regenerating these raw materials, it is desirable to take out high-quality fibers with high whiteness from the raw materials. In the method described in Patent Document 1, after the fibers of the raw material are disintegrated by wet disintegration processing, hydrogen peroxide is added to improve the whiteness, and the fibers are deinked by further washing.

JP-A-11-302990

The device described in Patent Document 1 requires so-called wet processing in which fibers are processed in a dispersed state in water. In wet processing, a large amount of water is required to separate the fibers from the raw material, which tends to complicate the configuration of the device and makes it difficult to miniaturize the device. Then, when processing the raw material containing a fiber, the method of being able to take out a fiber efficiently from a raw material was calculated | required.
The present invention has been made in view of the above-described circumstances, and an object thereof is to efficiently take out fibers contained in a raw material containing fibers.

In order to solve the above problems, in the fiber processing apparatus of the present invention, a material to be separated containing fibers, a first mesh portion on which the material to be separated is deposited as a deposit, and the deposit through the first mesh portion The second mesh portion by suctioning a first separation portion for suctioning the first surface of the first layer and a second surface of the deposit opposite to the first surface through the second mesh portion And a second separation unit to be deposited.
According to the present invention, by suctioning the material to be separated through the mesh portion, the component that passes through the mesh portion and the component that does not pass through the mesh portion can be separated quickly and efficiently. Furthermore, by combining the suction from the first surface of the material to be separated and the suction from the second surface, the component passing through the mesh portion can be more reliably separated from the component not passing through the mesh portion. With this configuration, for example, fibers contained in the material to be separated and components other than fibers can be separated, and short fibers and long fibers contained in the material to be separated can be separated. Thus, the fibers contained in the material to be separated can be efficiently taken out by separating the components contained in the material to be separated according to the size.

Further, according to the present invention, the second separation part generates an air flow passing through both the first mesh part and the second mesh part in a state where the second mesh part faces the first mesh part. .
According to this configuration, it is possible to separate the component passing through the second mesh portion from the deposit deposited on the first mesh portion by the air flow of the second separation portion, and to further move the deposit to the second mesh portion it can. Therefore, the deposit can be easily recovered at the second mesh portion, and the separation efficiency can be further enhanced.

Further, according to the present invention, the first mesh portion is configured to be rotatable, and a first air flow flowing to the first mesh portion in the first separation portion, and the first mesh portion and the first mesh portion in the second separation portion. The second air flow that flows through the second mesh portion flows at a different position in the rotation range of the first mesh portion.
According to this configuration, by causing the first air flow and the second air flow to pass through at different positions in the first mesh portion, mixing of the separated components is prevented, and the components contained in the material to be separated can be made more efficiently. It can be separated.

Further, according to the present invention, the first air flow and the second air flow are air flows in opposite directions.
According to this configuration, it is possible to separate the components contained in the material to be separated more efficiently by using the air flow in the reverse direction.

Further, according to the present invention, the first mesh portion is constituted by a first cylinder having a mesh formed on the circumferential surface, and the second mesh portion is constituted by a second cylinder having a mesh formed on the circumferential surface, The first separation unit sucks in from the outside of the first cylinder inward at a position not facing the second cylinder on the circumferential surface of the first cylinder, and the second separation unit is configured to At a position where the circumferential surface of the first cylinder and the circumferential surface of the second cylinder face each other, suction is performed from the first cylinder toward the second cylinder.
According to this configuration, the components included in the material to be separated can be efficiently separated into components passing through the mesh and components not passing through the simple configuration using a plurality of cylinders. Further, for example, by rotating at least one of the cylinders, the separation material can be separated continuously, so a large amount of separation material can be processed in a short time.

Furthermore, the present invention includes a drive unit that rotates the first cylinder and the second cylinder around an axis, and the first separation unit is the material to be separated from the outside of the first cylinder. And a first air flow generation unit for generating an air flow directed from the outside of the first cylinder to the inside from the first cylinder, and the second separation unit is provided from the inside of the first cylinder A second air flow generation unit is provided that generates an air flow that is directed outward and inward from the outside of the second cylinder.
According to this configuration, the components included in the material to be separated can be efficiently separated into components passing through the mesh and components not passing through the simple configuration using a plurality of cylinders. Further, by rotating the cylinder, the material to be separated can be separated continuously, so a large amount of material to be separated can be processed in a short time.

Further, in the present invention, the first mesh portion and the second mesh portion are flat, and are respectively rotated by a driving portion, and the first separation portion is the second mesh in the plane of the first mesh portion. Suction is performed at a first position not facing the part, and the second separation part is connected to the second mesh part from the first mesh part at a second position where the first mesh part and the second mesh part are opposed. The sediment is sucked by the flowing air flow.
According to this configuration, the component contained in the material to be separated can be efficiently separated into the component that passes through the mesh and the component that does not pass by the simple configuration in which the airflow is passed through the flat mesh portion. Further, by rotating the flat mesh portion, the separation material can be separated continuously, so that a large amount of separation material can be processed in a short time.

Moreover, this invention is equipped with the collection part which collects the deposit deposited on the said 2nd mesh part.
According to this configuration, by collecting the deposit from which the material passing through the mesh is removed, high-quality fibers can be taken out from the components contained in the material to be separated.

In the fiber material regenerating apparatus of the present invention, a fibrillation unit for fibrillating a material containing fibers, a processing unit for processing fibrillated materials fibrillated by the fibrillation unit, and the processing from the fibrillation unit A transport unit configured to transport the defibrated material by a transport air flow, and a separation unit provided in the transport unit, the separation unit including a first mesh unit configured to deposit the defibrated material as a deposit; A first separation portion for suctioning the first surface of the deposit through the first mesh portion, and a second surface of the deposit opposite to the first surface by suction through the second mesh portion; And a second separation portion for depositing the deposit on the second mesh portion.
According to the present invention, the fiber contained in the raw material is efficiently taken out by disentangling the raw material containing fibers and separating the defibrated material into a component that passes through the mesh portion and a component that does not pass through the mesh portion. be able to. By processing the fibers thus taken out, the raw material can be efficiently regenerated.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the whole structure of the sheet manufacturing apparatus of 1st Embodiment. The principal part front view of the isolation | separation part. Side view of separation part. FIG. 2 is a perspective view showing the configuration of a first drum and a second drum. Explanatory drawing of the process in which dust is isolate | separated from the deposit. The principal part perspective view which shows the structure of the isolation | separation part of 2nd Embodiment. The side view which shows the structure of the isolation | separation part of 2nd Embodiment. The schematic block diagram of the isolation | separation part of 3rd Embodiment.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Note that the embodiments described below do not limit the contents of the present invention described in the claims. Further, not all of the configurations described below are necessarily essential configuration requirements of the present invention.

[1. First embodiment]
[1-1. Overall configuration of sheet manufacturing apparatus]
FIG. 1 is a schematic view showing a configuration of a sheet manufacturing apparatus 100 according to a first embodiment to which the present invention is applied.
The sheet manufacturing apparatus 100 corresponds to the fiber raw material regenerating apparatus of the present invention, and executes a regenerating process of fiberizing a raw material containing fibers and regenerating into a new sheet. The sheet manufacturing apparatus 100 manufactures sheets of a plurality of types by disintegrating the raw material in a dry state to form fibers, and then applying pressure, heating, and cutting. Here, by mixing various additives with the fiberized raw material, the bonding strength and whiteness of the sheet can be improved, and functions such as color, smell and flame retardancy can be added according to the application. be able to. In addition, by controlling the density, thickness, size, and shape by the sheet manufacturing apparatus 100 and molding, it is possible to manufacture and sell various types of sheets. As sheets, in addition to sheet-like products such as A4 and A3 printing sheets, cleaning sheets (floor cleaning sheets, etc.), oil stains sheets, toilet cleaning sheets, etc. It is possible to manufacture.

  The sheet manufacturing apparatus 100 includes a supply unit 10, a crushing unit 12, a defibrating unit 20, a separation unit 30 (fiber processing apparatus), a mixing unit 50, an additive supply unit 52, a deposition unit 60, a web forming unit 70, a conveyance unit 79, a sheet forming unit 80, and a cutting unit 90. The sheet manufacturing apparatus 100 further includes a control device 110 that controls each part of the sheet manufacturing apparatus 100.

  The sheet manufacturing apparatus 100 includes a plurality of humidifying units for the purpose of humidifying the raw material and / or humidifying the space in which the raw material moves. As an example of a humidification part, the humidification parts 202, 208, and 212 are shown to a figure. The specific configuration of each humidifying unit including the humidifying units 202, 208 and 212 is optional, and may be a steam type, a vaporization type, a warm air vaporization type, an ultrasonic type, or the like. In the present embodiment, the humidifying units 202 and 208 are vaporization type or warm air vaporization type humidifiers. The humidifying units 202 and 208 have a filter (not shown) for infiltrating water, and supply humidified air with increased humidity by passing air through the filter. The humidifying unit 212 is an ultrasonic humidifier, generates mist by atomizing water, and supplies the mist.

  The supply unit 10 supplies, to the crushing unit 12, the raw material MA from which the sheet manufacturing apparatus 100 manufactures a sheet. The raw material MA should just contain a fiber, for example, a paper, a pulp, a pulp sheet, the cloth containing a nonwoven fabric, or textiles etc. are mentioned. The raw material of the sheet manufacturing apparatus 100 may be used, such as waste paper (so-called waste paper), or may be unused. Below, the case where the sheet manufacturing apparatus 100 uses waste paper as a raw material is mentioned as an example, and is demonstrated.

  The supply unit 10 includes a tray (not shown) for containing the raw material MA input by the user, a roller (not shown) for delivering the raw material MA from the tray, and a motor (not shown) for driving the roller. The supply unit 10 feeds the raw material MA to the crushing unit 12 by the operation of the motor.

  The crushing unit 12 includes a pair of crushing blades 14 for cutting the raw material MA supplied from the supply unit 10, and a chute (also referred to as a hopper) 9 for receiving coarse fragments cut and dropped by the crushing blade 14. Equipped with The crushing unit 12 cuts the raw material MA supplied from the supply unit 10 in the air (that is, in the air) with the crushing blade 14 (also referred to as crushing) in air such as air (i.e., in the air) to form crushing pieces. The crushing part 12 can be made into the structure similar to what is called a shredder, for example. The shape and size of the coarse fragments are arbitrary, as long as they are suitable for the disintegration processing in the disintegration unit 20. For example, the crushing unit 12 cuts the raw material MA into pieces of paper having a size of 1 to several cm square or less. The cut pieces of paper may be, for example, square or rectangular, and need not be limited to the exact shape. The chute 9 has, for example, a tapered shape in which the width gradually narrows in the direction in which the coarse fragments flow (advancing direction), and is connected to the defibrating unit 20. The crushed fragments cut by the crushing blade 14 are collected by the chute 9 and transferred (conveyed) to the defibrating unit 20.

  Humidified air may be supplied to the chute 9 or in the vicinity thereof by the humidifying unit 202 or the like to suppress adhesion of coarse debris due to static electricity. Alternatively, an ionizer may be provided in the crushing unit 12 and the defibrating unit 20 to remove electricity.

  The defibrating unit 20 fibrillates the coarse fragments cut by the crusher 12 to generate a defibrated material MB. Here, "disintegrate" refers to disaggregation of a raw material (which refers to coarse fragments and also referred to as a disaggregated material) in which a plurality of fibers are bound into one fiber. The defibrating unit 20 also has a function of separating substances such as resin particles, ink, toner, and anti-smearing agents attached to the raw material from fibers. What passed through the defibrating unit 20 is referred to as "defibrated material" and is given the code MB. The defibrated material MB includes, in addition to the disentangled fibers, resin particles (resin for binding a plurality of fibers) particles separated from the fibers when disentangling the fibers, coloring agents such as ink, toner, etc. It may contain additives such as anti-bleeding agents, paper strength agents and the like. These fibers, coloring agents, additives and the like are components contained in the raw material MA. The shape of the fibers contained in the defibrated material MB is a string or a ribbon. The fibers contained in the defibrated material MB may be in an independent state not intertwined with other fibers, or in a state of being entangled with the other defibrated material MB (so-called "Dama") May be

  The defibrating unit 20 fibrillates in a dry manner. Here, performing processing such as disintegration in a liquid, not in the air but in the atmosphere or the like is called dry processing. The defibrating unit 20 can be configured, for example, using a defibrator such as an impeller mill. Specifically, the defibrating unit 20 includes a rotor (not shown) that rotates at high speed, and a liner (not shown) located on the outer periphery of the rotor. In this configuration, coarse fragments cut in the coarse portion 12 are sandwiched between the rotor of the defibrating portion 20 and the liner to be broken. In addition, the defibrating unit 20 generates an air flow by the rotation of the rotor. By this air flow, the defibrating unit 20 sucks the coarse fragments and sends out the defibrated material MB to the pipe 2. The defibrated material MB is transferred to the separation unit 30 via the pipe 2.

  The sheet manufacturing apparatus 100 further includes a defibrating unit blower 26 that is an air flow generating device. The defibrating unit blower 26 is a blower attached to the pipe 2 to suck air from the defibrating unit 20 together with the defibrated material MB and to blow the air to the separating unit 30. The pipe 4 is connected to the downstream side of the defibrating unit blower 26. The defibrated material MB is transported to the separating unit 30 through the pipe 4 by the air flow generated by the defibrating unit blower 26 in addition to the air flow generated by the defibrating unit 20.

  The separation unit 30 sorts and separates components contained in the defibrated material MB (material to be separated) flowing from the pipe 2. The separating unit 30 can sort the components contained in the defibrated material MB according to the size, and can be called a sorting unit. In the case where the component to be sorted by the separation unit 30 has a large size as a first sorted material and the component with a small size as a second sorted material, the first sorted material mainly includes fibers. Among the fibers contained in the defibrated material MB, the second sort is particularly short (short fibers), the above-mentioned resin particles, or particles or strips containing a coloring agent, an anti-smearing agent, a paper strength agent, etc. .

In the present embodiment, the first sorted matter separated by the separating unit 30 mainly includes fibers of a predetermined size or more, and is a component suitable for manufacturing the sheet S described later, which is referred to as a processing raw material MC . On the other hand, the second sort contains fibers and / or particles and strips of colorants and additives which do not have a predetermined size. These are components not suitable for the production of the sheet S, and are therefore called dust MD. The sheet manufacturing apparatus 100 recovers the dust MD (also referred to as waste powder) separated by the separation unit 30 separately from the material of the sheet S. As described above, the separation unit 30 separates the defibrated material MB into the processing raw material MC including fibers suitable as a raw material for producing the sheet S and the dust MD as the other component.
The configuration of the separation unit 30 will be described later.

  Here, the pipes 4 and 6 and the separation unit 30 are used as the conveyance unit 5 for conveying the processing material MC to the mixing unit 50. The conveying unit 5 has a function of conveying the defibrated material MB of the defibrating unit 20 to the regenerating unit 102 described later.

  The processing raw material MC sorted by the separation unit 30 is sent to the mixing blower 56 through the pipe 6. On the other hand, the dust MD is sent from the separation unit 30 to the pipe 8. The pipe 8 is connected to the dust collection unit 27, and a collection blower 28 is installed downstream of the dust collection unit 27. The dust MD is sucked from the separation unit 30 through the dust collection unit 27 by the suction force of the collection blower 28.

  The dust collection unit 27 is a filter-type or cyclone-type dust collection device, and has a function of separating fine particles from an air flow. The dust MD is sucked together with the air by the suction force of the collection blower 28, and separated from the air flow by the dust collection unit 27 and collected. For example, the dust collection unit 27 includes a filter (not shown), and the dust MD is collected by the filter of the dust collection unit 27. The air that has passed through the dust collection unit 27 is discharged to the pipe 29.

  The separation unit 30 includes a humidification unit 202. The humidifying unit 202 humidifies a space including each part of the separating unit 30. The humidified air supplied by the humidifying unit 202 regulates the humidity of the defibrated material MB processed by the separating unit 30, the processing material MC, and the dust MD, so that the influence of static electricity can be suppressed. For example, adhesion of the defibrated material MB, the processing material MC, and the dust MD can be suppressed in the separation unit 30, and the processing of the defibrated material MB and the transportation of the processing material MC and the dust MD can be smooth It can do.

  The mixing unit 50 includes an additive supply unit 52 for supplying an additive containing a resin, a pipe 54 through which an air flow containing the processing raw material MC separated by the separation unit 30 flows, and a mixing blower 56. Add the resin-containing additive to the MC.

  In the additive supply unit 52, an additive cartridge 52a for accumulating the additive is set. The additive cartridge 52 a may be removable from the additive supply unit 52. The additive supply unit 52 includes an additive removal unit 52b that removes the additive from the additive cartridge 52a, and an additive insertion unit 52c that discharges the additive removed by the additive removal unit 52b to the pipe 54.

  The additive removal unit 52b includes a feeder (not shown) for feeding out the additive consisting of fine powder or fine particles in the inside of the additive cartridge 52a, and removes the additive from part or all of the additive cartridge 52a. The additive removed by the additive removal unit 52b is sent to the additive insertion unit 52c.

  The additive input unit 52c contains the additive extracted by the additive extraction unit 52b. The additive loading unit 52c is provided with a shutter (not shown) that can be opened and closed at a connection with the tube 54, and the additive taken out by the additive removal unit 52b is fed out to the tube 54 by opening the shutter. The shutter of the additive input portion 52c has an effect of preventing the additive from being excessively sucked out of the additive supply portion 52 by the negative pressure generated by the air flow of the pipe 54.

  The additive supplied by the additive supply unit 52 includes a resin that melts by heating to bind a plurality of fibers. The resin contained in the additive is a thermoplastic resin or a thermosetting resin. For example, AS resin, ABS resin, polypropylene, polyethylene, polyvinyl chloride, polystyrene, acrylic resin, polyester resin, polyethylene terephthalate. In addition, polyphenylene ether, polybutylene terephthalate, nylon, polyamide, polycarbonate, polyacetal, polyphenylene sulfide, polyetheretherketone and the like may be used. These resins may be used alone or in combination as appropriate. That is, the additive may contain a single substance, or may be a mixture, and may contain multiple types of particles, each consisting of a single or multiple substances. Further, the additive may be in the form of fiber or powder.

  Further, the additive supplied by the additive supply unit 52 may be a coloring agent for coloring the fibers, aggregation of the fibers, aggregation of the resin or the like depending on the type of the sheet to be manufactured, in addition to the resin for binding the fibers. And a flame retardant to make the fibers and the like hard to burn. Further, the additive not containing a colorant may be colorless or pale to an extent that can be regarded as colorless, or may be white.

The type and number of additives used by the sheet manufacturing apparatus 100 are arbitrary, and the additive supply unit 52 is mounted with an additive cartridge 52a corresponding to the type of additive to be used. Further, the sheet manufacturing apparatus 100 may use only a part of the additive cartridge 52a mounted to the additive supply unit 52, or may use all of them.
In the present embodiment, six additive cartridges 52 a are attached to the additive supply unit 52 as an example. The six additive cartridges 52a include an additive cartridge 52a containing an additive that is colorless or light enough to be regarded as colorless, and an additive cartridge 52a containing an additive capable of coloring the fibers white. In addition, it includes an additive cartridge 52a that contains an additive capable of coloring the fibers into C (cyan), M (magenta), and Y (yellow) colors.

  The amount by which the additive removal unit 52b removes the additive from each of the additive cartridges 52a is controlled by the control device 110. The control device 110 controls the additive supply unit 52 so that the sheet manufacturing apparatus 100 operates to manufacture the sheet S without coloring the fibers contained in the processing material MC, and the sheet S by coloring the fibers. Can perform manufacturing operations. Also, by supplying the additive from any one of the additive cartridges 52a, the fibers can be colored in white, C, M, and Y colors. For example, whiteness can be improved by mixing white additives into the fibers. Further, the fibers can be colored in an intermediate color by combining and mixing the additives contained in the plurality of additive cartridges 52a.

  The additive supplied from the additive supply unit 52 is conveyed by the pipe 54 while being mixed with the fibers of the processing raw material MC by the air flow generated by the mixing blower 56, and passes through the inside of the mixing blower 56. The raw material for processing MC is loosened in the process of flowing inside the pipe 7 and the pipe 54, and becomes finer and fibrous. The fibers of the processing raw material MC and the additives supplied by the additive supply unit 52 are mixed by the action of the air flow generated by the mixing blower 56 and / or the rotating body such as the blades of the mixing blower 56, and the mixture is a tube It is transferred to the deposition unit 60 through 54.

  The mechanism for mixing the processing raw material MC and the additive is not particularly limited, and the stirring may be performed by a blade rotating at high speed. Also, the rotation of the container may be used as in the V-type mixer, and these mechanisms may be installed before or after the mixing blower 56.

  The mixture that has passed through the mixing unit 50 is introduced into the inlet 62 of the deposition unit 60. The deposition section 60 loosens the fibers of the mixture and descends to the web forming section 70 while dispersing in air. Here, when the resin of the additive supplied from the additive supply unit 52 is in the form of fibers, these fibers are also loosened by the deposition unit 60 and fall to the web forming unit 70.

  The deposition unit 60 includes a drum unit 61 and a housing unit 63 that accommodates the drum unit 61. The drum portion 61 is a cylindrical structure having a mesh, and the mesh may be a filter or a screen. For example, it is possible to use a wire mesh, an expanded metal obtained by extending a metal plate with cuts, and a punching metal in which holes are formed in a metal plate by a press machine or the like. The drum unit 61 is rotationally driven by a motor and functions as a sieve. In addition, the "sieve" of the drum part 61 does not need to have a function which screens a specific target object. That is, the “sieve” used as the drum unit 61 means that the mesh unit is equipped with a net, and the drum unit 61 may lower all of the mixture introduced to the drum unit 61.

  The web forming unit 70 is disposed below the drum unit 61. The web forming unit 70 includes, for example, a mesh belt 72, a roller 74, and a suction mechanism 76.

  The mesh belt 72 is an endless belt and is suspended by a plurality of rollers 74, and is conveyed in the direction indicated by the arrow V2 in the figure by the movement of the rollers 74. The mesh belt 72 is made of, for example, metal, resin, cloth, non-woven fabric, or the like, and the surface thereof is formed of a net in which openings of a predetermined size are arranged. Among particles falling from the deposition section 60, fine particles having a size that passes through the mesh of the mesh belt 72 fall below the mesh belt 72. On the other hand, the fibers of a size which can not pass through the mesh of the mesh belt 72 are deposited on the mesh belt 72 and conveyed together with the mesh belt 72 in the direction of the arrow V2. The mesh of the mesh belt 72 is fine and can be sized so as not to pass most of the fibers and particles falling from the drum portion 61. With this configuration, the passing material that has passed through the mesh of the drum unit 61 is deposited on the web forming unit 70, and the deposit becomes the web W2.

  The suction mechanism 76 includes a suction blower 77 provided below the mesh belt 72 and causes the suction mechanism 76 to generate an air flow from the accumulation unit 60 toward the mesh belt 72 by the suction force of the suction blower 77. The suction mechanism 76 sucks the mixture dispersed in the air by the deposition unit 60 onto the mesh belt 72, so that the effect of promoting the formation of the web W2 can be expected. In addition to the effect of increasing the discharge speed from the deposition unit 60, the downflow formed in the dropping path of the mixture can be expected to have an effect of preventing the fibers and additives in the mixture from being entangled during the dropping.

  The suction blower 77 may discharge the air sucked from the suction mechanism 76 to the outside of the sheet manufacturing apparatus 100 through a collection filter (not shown). Alternatively, the air sucked by the suction blower 77 may be sent to the dust collection unit 27, and the removal component contained in the air sucked by the suction mechanism 76 may be collected.

Humidified air is supplied to the space including the drum unit 61 by the humidification unit 208. By humidifying the inside of the deposition unit 60 by this humidified air, adhesion of the fibers and particles to the housing portion 63 by electrostatic force is suppressed, and the fibers and particles are rapidly dropped to the mesh belt 72, and the web W2 of a preferable shape Can be formed.
Further, in the conveyance path of the mesh belt 72, air containing mist is supplied to the downstream side of the accumulation unit 60 by the humidification unit 212. As a result, the amount of water contained in the web W2 is adjusted, and adsorption of fibers to the mesh belt 72 due to static electricity is suppressed.

  The web W2 formed by the deposition unit 60 and the web forming unit 70 is peeled off from the mesh belt 72 by the transport unit 79 and transported to the sheet forming unit 80. The transport unit 79 includes, for example, a mesh belt 79a, a roller 79b, and a suction mechanism 79c.

  The suction mechanism 79 c includes a blower (not shown) and generates an upward air flow on the mesh belt 79 a by the suction force of the blower. By this air flow, the web W2 is separated from the mesh belt 72 and attracted to the mesh belt 79a. The mesh belt 79 a is moved by the rotation of the roller 79 b and conveys the web W 2 to the sheet forming unit 80.

  In the sheet forming unit 80, heat is applied to the fibers and additives contained in the web W2 to bond the plurality of fibers in the mixture to one another through the resin contained in the additives. Specifically, the sheet forming unit 80 includes a pressing unit 82 that presses the web W2, and a heating unit 84 that heats the web W2 pressed by the pressing unit 82. The pressing unit 82 is constituted by a pair of calendar rollers 85 and 85. The pressing unit 82 nips and presses the web W2 with a predetermined nip pressure to densify the web W2 and transport the web W2 toward the heating unit 84. The heating unit 84 includes a pair of heating rollers 86 and 86, applies heat to the web W2 pressed by the calendar rollers 85 and 85, and forms the sheet S.

  The cutting unit 90 cuts the sheet S formed by the sheet forming unit 80. The cutting unit 90 according to the present embodiment cuts the sheet S in a direction parallel to the conveyance direction F, and a first cutting unit 92 that cuts the sheet S in a direction intersecting the conveyance direction of the sheet S indicated by the code F in the drawing. And a second cutting portion 94. By cutting at the cutting unit 90, a single-cut sheet S of a predetermined size is formed. The cut sheet S cut by the cutting unit 90 is stored in the discharge unit 96. The discharge unit 96 includes a tray or stacker for storing the manufactured sheets, and the sheet S discharged to the tray can be taken out and used by the user.

  Each part of the sheet manufacturing apparatus 100 described above constitutes a defibrating unit 101 and a regenerating unit 102. The defibration processing unit 101 includes at least the supply unit 10 and the defibrating unit 20, and may be a defibrating unit of the present invention. The defibration processing unit 101 manufactures a processing raw material MC separated from the raw material MA and the defibrated material MB or the defibrated material MB. It is also possible to take out and store the product of the disintegration processing unit 101 from the sheet manufacturing apparatus 100 without transferring it to the mixing unit 50. Also, the product may be enclosed in a predetermined package to be in a transportable and tradable form.

  The regenerating unit 102 is a functional unit that regenerates the product manufactured by the disintegrating unit 101 into a sheet S, and the mixing unit 50, the web forming unit 70, the conveying unit 79, the sheet forming unit 80, and the cutting unit 90. And may include the additive supply unit 52. In the sheet manufacturing apparatus 100, the defibration processing unit 101 and the regenerating unit 102 may be configured integrally or separately. In this case, the defibration processing unit 101 corresponds to the fiber material regenerating apparatus of the present invention. The regenerating unit 102 corresponds to the processing unit of the present invention, and corresponds to a sheet forming unit for forming the defibrated material into a sheet shape.

[1-2. Configuration of separation unit]
Then, with reference to FIG.2, FIG3 and FIG.4, the structure of the isolation | separation part 30 with which the sheet manufacturing apparatus 100 of 1st Embodiment is equipped is demonstrated. FIG. 2 is a front view of an essential part of the separating unit 30, and FIG. 3 is a side view of the separating unit 30. As shown in FIG. Moreover, FIG. 4 is a perspective view which shows especially the structure of the 1st drum 310 and the 2nd drum 320 with which the isolation | separation part 30 is provided.

  The separation unit 30 includes a substantially box-shaped case 301. Pipes 4 and 6, suction pipes 303 and 307, and supply pipes 305 and 309, which will be described later, penetrate through the case 301, and the other parts are accommodated in the case 301. The front or side of the case 301 is not shown in FIGS. 2 and 3 for the convenience of understanding.

  Connected to the case 301 are a tube 4 for feeding the fibrillated material MB to the case 301 and a tube 6 for delivering the processing material MC from the case 301. In the separation unit 30 of the present embodiment, the pipe 4 is connected to the upper part of the case 301 and the pipe 6 is connected to the lower part of the case 301. In FIG. 2 and FIG. Indicated. The installation state of the separation unit 30 is not limited to this. For example, the separation unit 30 may be installed so that the pipe 4 and the pipe 6 extend in the horizontal direction. That is, it is also possible to install the separating unit 30 such that the first drum 310 and the second drum 320 described later are arranged in the horizontal direction.

  The separation unit 30 includes a first drum 310 and a second drum 320. The first drum 310 and the second drum 320 are arranged side by side, the first drum 310 is located on the side of the tube 4 in the case 301, and the second drum 320 is located on the side of the tube 6.

  As shown in FIG. 4, the first drum 310 and the second drum 320 are arranged side by side so that the circumferential surfaces thereof face each other. The first drum 310 and the second drum 320 are spaced apart so as not to contact each other, and can be independently rotated. The rotational direction of the first drum 310 is taken as rotational direction R1, and the rotational direction of the second drum 320 is taken as rotational direction R3.

  The first drum 310 (first cylinder) is a hollow cylindrical member, and a first mesh 311 (first mesh portion) is formed on the circumferential surface. The first mesh 311 is formed in a plate shape having a plurality of openings, and functions as a filter or a sieve. The first mesh 311 may be made of metal or synthetic resin. For example, a wire mesh, an expanded metal obtained by extending a metal plate with cuts, a punching metal in which holes are formed in a metal plate by a press machine or the like Can be used. The size of the opening of the first mesh 311 is arbitrary, but can be, for example, about 0.1 mm. Further, the shape of the opening of the first mesh 311 is arbitrary, and may be an opening formed as a gap between a plurality of wires, or may be an opening formed in a flat plate like a punching metal. The shape of the opening of the first mesh 311 may be polygonal, circular or elliptical. In these cases, the size of the opening of the first mesh 311 can be defined as the opening width of the longest portion in the opening. The first drum 310 includes a frame (not shown) or the like that maintains the first mesh 311 in a tubular shape.

  Like the first drum 310, the second drum 320 (second cylinder) is a hollow cylindrical member, and a second mesh 321 (second mesh portion) is formed on the circumferential surface. The second mesh 321 is formed in a plate shape having a plurality of openings, and functions as a filter or a sieve. The shape of the second mesh 321, the material forming the second mesh 321, and the size and shape of the opening of the second mesh 321 can be the same configuration as the first mesh 311. For example, the size of the opening of the second mesh 321 can be set to about 0.1 mm as in the case of the first mesh 311. The other configurations are also the same.

  The first drum 310 is supported by the case 301 so as to be rotatable about a rotation center axis O1 (axis) shown by imaginary lines in FIGS. 2 and 3. A drive roller 317 (drive unit) is provided to abut on the outer peripheral surface of the first drum 310. The driving roller 317 is rotated in a direction indicated by a symbol R2 by a driving force of a motor (not shown) to rotate the first drum 310 in the rotation direction R1. The driving force of the driving roller 317 moves the first mesh 311 in the circumferential direction.

  Further, the second drum 320 is supported by the case 301 so as to be rotatable around a rotation center axis O2 (axis) shown by imaginary lines in FIGS. 2 and 3. A drive roller 327 (drive unit) is provided to abut the outer peripheral surface of the second drum 320. The driving roller 327 is rotated in a direction indicated by a symbol R4 by a driving force of a motor (not shown) to rotate the second drum 320 in the rotation direction R3. The second mesh 321 moves in the circumferential direction by the driving force of the driving roller 327.

  The first mesh 311 faces the opening 4 A of the tube 4 at the top of the case 301, and the air flow B 11 containing the defibrated material MB exits from the opening 4 A and collides with the first mesh 311. The tube 4 corresponds to a supply unit for supplying an air flow containing the defibrated material MB, but the disintegration unit 20 for sending the defibrated material MB to the tube 4 and the disintegration unit blower 26 may be used as the supply unit.

  A suction pipe 303 communicates with the inside of the first drum 310. That is, the opening 303A provided at the tip of the suction pipe 303 opens at a position facing the opening 4A in the internal space of the first drum 310. That is, the opening 4A of the pipe 4 and the opening 303A of the suction pipe 303 are disposed to face each other across the first mesh 311. The portion of the separation unit 30 where the opening 303A faces the first mesh 311 is referred to as a first separation unit 331. The first separation unit 331 may include the suction pipe 303 and the first mesh 311 and may further include the pipe 4.

  The suction pipe 303 is a pipe connected to the pipe 8 (FIG. 1), sucks air from the opening 303A by the suction force of the collection blower 28 (FIG. 1), and generates an air flow B12. Here, the opening 4A blows, toward the first mesh 311, an air flow B11 carrying the defibrated material MB by the power of the defibrating part blower 26 (FIG. 1). Therefore, in the first separation unit 331, the air flows B11 and B12 penetrate the first mesh 311. The air flow B12 corresponds to the first air flow of the present invention, and the first air flow may include the air flow B11. Further, a collection blower 28 for generating the air flows B11 and B12 or a combination of the collection blower 28 and the defibrating unit blower 26 corresponds to a first air flow generation unit.

  The first mesh 311 faces the second mesh 321 at the center of the case 301. An opening 305A of the supply pipe 305 is opened inside the first drum 310 so as to face the second mesh 321 side. Further, inside the second drum 320, an opening 307A of the suction pipe 307 is opened so as to face the first mesh 311 side. That is, the opening 305A and the opening 307A are disposed to face each other.

  The supply pipe 305 is a pipe extending to the outside of the case 301, and supplies the humidified air or the outside air supplied by the humidification unit 202 (FIG. 1) to the inside of the supply first drum 310. The suction pipe 307 is a pipe extending to the outside of the case 301 and connected to the pipe 8 (FIG. 1), and generates an air flow B22 at the opening 307A by the suction force of the collection blower 28 (FIG. 1). Here, the collection blower 28 corresponds to a second air flow generation unit that generates the air flow B22.

  The opening 307A of the suction pipe 307 faces the opening 305A of the supply pipe 305 via the second mesh 321 and the first mesh 311. In the second separation portion 332, a negative pressure is generated around the opening 307A by the air flow B22, and an air flow B21 is generated by the negative pressure. The air flows B21 and B22 penetrate the first mesh 311 and the second mesh 321. The air flow B22 corresponds to the second air flow of the present invention, and the second air flow may include the air flow B21.

  In the separation unit 30, a portion where the opening 307A faces the second mesh 321 is referred to as a second separation unit 332. The second separation unit 332 may include a suction pipe 307 and a second mesh 321, and may further include a first mesh 311 and a supply pipe 305.

  The second mesh 321 faces the opening 6 A of the tube 6 at the lower part of the case 301. The suction force of the mixing blower 56 (FIG. 1) generates an air flow B32 at the opening 6A. Further, in the second drum 320, an opening 309A of the supply pipe 309 is opened. The opening 309A faces the inside of the second mesh 321 to open. The supply pipe 309 is a pipe extending to the outside of the case 301, and supplies the humidified air or the outside air supplied by the humidification unit 202 (FIG. 1) to the inside of the supply second drum 320.

The opening 6A of the pipe 6 and the opening 309A of the supply pipe 309 are disposed to face each other across the second mesh 321. A portion of the separation unit 30 where the opening 6A faces the second mesh 321 is referred to as a collection unit 333.
In the collection portion 333, a negative pressure is generated around the opening 6A by the air flow B32 entering the opening 6A, and the negative pressure generates an air flow B31 in the opening 309A. In the collection unit 333, the air flows B <b> 31 and B <b> 32 flow through the second mesh 321.

  In the present embodiment, as shown in FIG. 3, the supply pipes 305, 309 are described as pipes supplying air from the outside of the case 301, but the arrangement of the supply pipes 305, 309 may be omitted. The supply pipes 305 and 309 may be pipes for supplying air from the inside of the case 301 to the inside of the first drum 310 and the inside of the second drum 320, respectively. Further, the supply pipes 305 and 309 may be connected to a fan (not shown) disposed outside the case 301, and the air flow delivered by the fan may be sent from the supply pipes 305 and 309 to the separating unit 30. .

  In the first separation unit 331, the defibrated material MB is sprayed to the first mesh 311 from the opening 4A. The component passing through the opening of the first mesh 311 passes through the first mesh 311 and is sucked by the air flow B12 from the opening 303A, sent to the pipe 8 through the suction pipe 303, and discharged from the separation unit 30. The components that do not pass through the openings of the first mesh 311 are deposited on the surface of the first mesh 311. This component is called sediment ME. Thus, in the first separation part 331, the defibrated material MB is separated into the deposit ME not passing through the opening of the first mesh 311 and the dust MD passing through the opening of the first mesh 311.

  The deposit ME moves to the second separation portion 332 as the first drum 310 rotates in the rotation direction R1. In the second separation unit 332, air flows B21 and B22 directed from the inside of the first drum 310 toward the second mesh 321 act on the first mesh 311. The air flow B21, B22 causes the deposit ME to be peeled off from the first mesh 311 and attracted to the surface of the second mesh 321. That is, the deposit ME moves from the first mesh 311 to the second mesh 321.

  Furthermore, in the second separation portion 332, an air flow B22 that passes through the deposit ME flows. By the air flow B22, the component passing through the opening of the second mesh 321 is sucked from the deposit ME, sent to the pipe 8 through the suction pipe 307, and discharged out of the separation unit 30. In addition, the components that do not pass through the opening of the second mesh 321 remain deposited on the surface of the second mesh 321 as the deposit ME. Thus, in the second separation part 332, the dust MD is separated from the deposit ME.

  The deposit ME deposited on the second mesh 321 moves in the rotational direction R3 with the rotation of the second drum 320, and reaches the position opposite to the opening 6A, that is, the collection portion 333. In the collection unit 333, the deposit ME is sucked into the pipe 6 by the air flow B 32 and is transported through the pipe 6 as a raw material MC for processing. Also, the suction force of the air flow B32 causes the air flow B31 directed from the inside of the second drum 320 to the deposit ME to act on the deposit ME. For this reason, the deposit ME is peeled off from the second mesh 321 by the air flow B31 and B32 and collected by the pipe 6.

  Thus, the separation unit 30 separates the defibrated material MB into the deposit ME and the dust MD in the first separation unit 331, and separates the dust MD from the deposit ME in the second separation unit 332, and the collection unit At 333 the sediment ME is collected. This process will be described in detail with reference to FIG.

  FIG. 5 is an explanatory view of a process of separating the dust MD from the deposit ME. The code | symbol A in a figure shows schematically the deposit ME containing dust MD, and the code | symbol B, C, and D each show the process of the process with respect to the deposit ME, respectively.

  The deposit ME is formed by the defibrated material MB adhering to the first mesh 311. As shown by symbol A in FIG. 5, the deposit ME mainly includes fibers to be a processing raw material MC, but includes dust MD including short fibers and colorant particles. The dust MD contained in the deposit ME does not pass through the first mesh 311, for example, adheres to the fibers of the processing raw material MC, and is deposited as the deposit ME. The deposit ME is deposited flat on the first mesh 311. In the deposit ME, the lower surface in the drawing is a first surface SF1, and the upper surface in the drawing is a second surface SF2.

  As indicated by a symbol B in FIG. 5, in the first separation unit 331, the air flows B11 and B12 pass through the deposit ME deposited on the first mesh 311. The air flows B11 and B12 flush the dust MD contained in the deposit ME toward the first surface SF1. As a result, the dust MD located on the first surface SF1 side in the deposit ME is discharged from the first surface SF1 as indicated by the arrows in the drawing. However, the dust MD located on the second surface SF2 side can not easily move to the first surface SF1 side. This is because the fibers of many processing raw materials MC existing between the dust MD located on the second surface SF2 side and the first surface SF1 function like a finer filter than the first mesh 311. , To prevent the movement of the dust MD.

  Therefore, in the first separation unit 331, as shown by a symbol C in FIG. 5, the dust MD is removed from the portion on the first surface SF1 side of the deposit ME, but the dust MD is on the portion on the second surface SF2 side It will be in the state of remaining.

  In the separating unit 30, the deposit ME is moved from the first mesh 311 to the second mesh 321, and the dust MD is separated by the air flows B21 and B22 in the second separating unit 332. As indicated by symbol D in FIG. 5, when the deposit ME is moved to the second mesh 321, the second mesh 321 contacts the second surface SF2 of the deposit ME. Therefore, in the second separation part 332, air flows B21 and B22 directed to the second surface SF2 in the opposite direction to the first separation part 331 flow through the deposit ME.

In the second separation unit 332, the dust MD located on the second surface SF2 side in the deposit ME easily moves toward the second surface SF2 and is discharged to the outside of the second surface SF2. Further, most of the dust MD located on the first surface SF1 side has already been removed by the first separating portion 331.
As described above, in the first separating unit 331 and the second separating unit 332, the separating unit 30 includes the air flows B11 and B12 flowing toward the first surface SF1, and the air flows B21 and B22 flowing toward the second surface SF2, The dust MD can be more reliably removed by flowing the sediment ME. As a result, the dust MD and the processing material MC can be efficiently separated by the separation unit 30, and the high quality processing material MC can be supplied to the regeneration unit 102.

  Further, in the inside of the first drum 310, a partition plate 313 which divides the internal space of the first drum 310 is disposed. The partition plate 313 divides the inside of the first drum 310 into a region in which the opening 303A opens and a region in which the opening 305A opens, and prevents the flow of air between the regions. The partition plate 313 can, for example, prevent or suppress the air flow flowing from the opening 305A toward the opening 303A. The partition plate 313 may be disposed in close contact with the first mesh 311, or a gap may be provided between the partition plate 313 and the first mesh 311, and the gap may be closed by a brush. By the partition plate 313, the suction force by the air flow B12 acts to suction the dust MD from the deposit ME without causing a large loss. Therefore, the efficiency of separating the dust MD from the deposit ME in the first separation part 331 is enhanced. Further, the partition plate 313 has an effect of preventing the dust MD which has passed through the first mesh 311 from moving to the opening 305A side, which contributes to the quality improvement of the processing material MC.

  Similarly, inside the second drum 320, a partition plate 323 that divides the internal space of the second drum 320 is disposed. The partition plate 323 divides the inside of the second drum 320 into a region in which the opening 307A opens and a region in which the opening 309A opens, and prevents the flow of air between the regions. The partition plate 323 can, for example, prevent or suppress the air flow flowing from the opening 309A toward the opening 307A. The partition plate 323 may be disposed in close contact with the second mesh 321, or a gap may be provided between the partition plate 323 and the second mesh 321, and the gap may be closed by a brush.

  The partition plate 323 has an effect of causing the suction force by the air flow B22 to act on the deposit ME without causing a large loss. Therefore, in the second separation part 332, the effect of separating the dust MD from the deposit ME via the second mesh 321 can be enhanced. Further, the partition plate 323 has an effect of preventing the dust MD which has passed through the second mesh 321 from moving to the opening 309A side, which contributes to the quality improvement of the processing material MC.

  The configuration for humidifying and conditioning the deposit ME in the separating unit 30 is not limited to the humidifying unit 202, for example, the deposit ME deposited on the first mesh 311 and / or the deposit ME deposited on the second mesh 321 And a humidifier for humidifying the liquid by supplying mist-like water.

  As described above, the sheet manufacturing apparatus 100 according to the first embodiment to which the present invention is applied includes the separating unit 30. The separation unit 30 has a first mesh 311 for depositing the defibrated material MB, which is a separation material containing fibers, as the deposit ME, and a first for suctioning the first surface SF1 of the deposit ME through the first mesh 311. And a separation unit 331. In addition, the separation unit 30 deposits the deposit ME on the second mesh 321 by attracting the second surface SF2 opposite to the first surface SF1 of the deposit ME through the second mesh 321. It has 332.

  With this configuration, the separating unit 30 sucks the defibrated material MB through the first mesh 311 and the second mesh 321 to thereby pass the components passing through the first mesh 311 and the second mesh 321 and the components not passing through the first mesh 311 and the second mesh 321. It can be separated quickly and efficiently.

Further, by combining the suction from the first surface SF1 of the defibrated material MB and the suction from the second surface SF2, the dust MD, which is a component passing through the first mesh 311 and the second mesh 321, does not pass through It can be more reliably separated from the processing raw material MC which is the component.
For example, the separation unit 30 can separate the fibers contained in the defibrated material MB from components other than the fibers, or separate the short fibers and the long fibers contained in the defibrated material MB.
As described above, by separating the components contained in the defibrated material MB according to the size, the fibers contained in the defibrated material MB can be efficiently taken out as the raw material MC for processing.

  The second separation unit 332 of the separation unit 30 generates an air flow B22 passing through both the first mesh 311 and the second mesh 321 in a state where the second mesh 321 faces the first mesh 311. Therefore, the dust MD, which is a component passing through the second mesh 321, is separated from the deposit ME deposited on the first mesh 311 by the air flow B22 of the second separation unit 332, and the deposit ME is further separated from the second mesh 321. Can be moved to Therefore, the deposit ME can be easily recovered at the second mesh 321, and the separation efficiency can be further enhanced.

  In the separation unit 30, the first mesh 311 is configured to be rotatable. Further, the airflow range B12 flowing through the first mesh 311 in the first separation unit 331 and the airflow range B22 flowing through the first mesh 311 and the second mesh 321 in the second separation unit 332 correspond to the rotation range of the first mesh 311 (rotation Flow in different locations. As a result, the air flow B12 and the air flow B22 are allowed to pass at different positions in the first mesh 311 to prevent scattering and mixing of the separated components (dust MD), and are more efficiently contained in the defibrated material MB. The dust MD can be separated from the processing material MC.

  Further, since the air flow B12 and the air flow B22 are air flows in the opposite direction, the dust MD, which is a component contained in the defibrated material MB, and the processing material MC can be separated more efficiently.

In addition, the first mesh 311 is constituted by the first drum 310 in which the mesh is formed on the circumferential surface, and the second mesh 321 is constituted by the second drum 320 in which the mesh is formed on the circumferential surface. The first separation unit 331 sucks the air flow B12 from the outside of the first drum 310 to the inside by the suction pipe 303 at a position not facing the second drum 320 on the circumferential surface of the first drum 310. The second separation unit 332 sucks the air flow B22 with the suction pipe 307 from the first drum 310 toward the second drum 320 at a position where the circumferential surface of the first drum 310 and the circumferential surface of the second drum 320 face each other. Do.
Thus, with a simple configuration using the first drum 310 and the second drum 320, the components contained in the defibrated material MB can be efficiently separated into dust MD passing through the mesh and processing raw material MC not passing through the mesh. Then, by rotating the first drum 310 and the second drum 320, the defibrated material MB can be continuously separated and the processing material MC can be collected, so a large amount of defibrated material can be obtained in a short time. It can handle MB.

  The separation unit 30 further includes a drive roller 317 that rotates the first drum 310 about the rotation center axis O1, and a drive roller 327 that rotates the second drum 320 about the rotation center axis O2. . The first separation unit 331 has the pipe 4 for supplying the air flow B21 containing the defibrated material MB from the outside of the first drum 310, and travels from the outside of the first drum 310 to the inside by the collection blower 28 and the suction pipe 303. The air flow B12 is generated. The second separation section 332 generates air flows B21 and B22 directed from the inside of the first drum 310 to the outside and from the outside of the second drum 320 to the inside by the collection blower 28 and the suction pipe 307. Thus, the separation unit 30 can efficiently separate the components contained in the defibrated material MB into the dust MD and the processing material MC with a simple configuration. In addition, the first drum 310 and the second drum 320 can be rotated to continuously separate the defibrated material MB.

  Since the separation unit 30 includes the collection unit 333 for collecting the deposit ME deposited on the second mesh 321, the processing raw material MC including high-quality fibers can be efficiently extracted from the defibrated material MB .

  The sheet manufacturing apparatus 100 transports the fibrillated material MB from the fibrillation material unit 20 to the regenerator material 102 from the fibrillation material unit 20, and the regeneration unit 102 that processes the fibrillated material MB. And a separation unit 30 provided in the conveyance unit 5. The separation unit 30 includes a first mesh 311 that deposits the defibrated material MB as a deposit ME, and a first separation unit 331 that sucks the first surface SF1 of the deposit ME through the first mesh 311. In addition, the separation unit 30 deposits the deposit ME on the second mesh 321 by attracting the second surface SF2 opposite to the first surface SF1 of the deposit ME through the second mesh 321. It has 332. Sheet manufacturing apparatus 100 disintegrates raw material MA including fibers, and separates defibrated material MB into a component that passes through first mesh 311 and second mesh 321 and a component that does not pass through, thereby forming raw material MA. Fibers contained can be efficiently removed. By processing the fibers thus taken out, the raw material MA can be efficiently regenerated.

[2. Second embodiment]
FIG. 6 is a main part perspective view showing the configuration of the separation unit 40 of the second embodiment to which the present invention is applied. FIG. 7 is a side view showing the configuration of the separation unit 40. As shown in FIG. The second embodiment will be described below with reference to FIGS. 6 and 7.

  The separating unit 40 is disposed in the sheet manufacturing apparatus 100 instead of the separating unit 30 of the first embodiment described above. Therefore, the sheet manufacturing apparatus 100 of the second embodiment does not have the separating unit 30 but includes the separating unit 40 connected to the tubes 4, 6, 8. The other configuration of the sheet manufacturing apparatus 100 is the same as that of the first embodiment, and thus the illustration and the description thereof will be omitted.

  Similar to the case 301 (FIG. 2), the separation unit 40 shown in FIG. 6 is housed, for example, in a box-shaped case (not shown).

  The separation unit 40 (fiber processing apparatus) separates the defibrated material MB flowing in from the pipe 4 according to the size. In detail, the separating unit 40 separates the components contained in the defibrated material MB into the processing material MC mainly made of fibers and the dust MD including particles smaller than the processing material MC. The processing material MC and the dust MD are as described above.

  The separation unit 40 includes a first mesh disc 410 and a second mesh disc 420 that function as a sieve having an opening of a predetermined size. The first mesh disk 410 has a plurality of openings, and a first mesh 411 (first mesh portion) functioning as a filter or a sieve is formed. Further, a second mesh 421 (second mesh portion) functioning as a filter having a large number of openings or a sieve is formed on the second mesh disk 420.

  The first mesh disc 410 and the second mesh disc 420 may be made of metal or synthetic resin. For example, wire mesh, expanded metal obtained by extending a metal plate with a cut, and pressed metal plate A punching metal in which a hole is formed by a machine or the like can be used. The shapes of the first mesh disk 410 and the second mesh disk 420 are not limited to a circle, and may be a geometric shape such as an ellipse or a square, or a shape without symmetry, but is highly feasible. A circular configuration is shown as a typical example.

The size of the openings of the first mesh 411 and the second mesh 421 is arbitrary, and may be the same size or different sizes, and may be, for example, about 0.1 mm.
The shape of the openings of the first mesh 411 and the second mesh 421 is arbitrary, and may be an opening formed as a gap between a plurality of wires or an opening formed in a flat plate like a punching metal. It may be. For example, the shape of the opening may be polygonal, circular or elliptical. In this case, the size of the opening described above can be defined as the opening width of the longest portion of the openings of the first mesh 411 and the second mesh 421. In addition, the first mesh disc 410 and the second mesh disc 420 may be configured with different materials, shapes, and sizes, and the shapes of the openings of the first mesh 411 and the second mesh 421 may also be different. it can.

  The separating unit 40 includes a driving roller 413 (driving unit) that drives the first mesh disk 410 in contact with the outer periphery of the first mesh disk 410, and a support unit 415 that supports the outer periphery of the first mesh disk 410. Equipped with In addition, the separating unit 40 contacts the outer periphery of the second mesh disk 420 and drives the second roller 420 with a drive roller 423 (drive unit) and a support 425 that supports the outer periphery of the second mesh disk 420. And.

  The support portions 415 and 425 rotatably support the first mesh disc 410 and the second mesh disc 420, respectively. The driving rollers 413 and 423 are rollers that rotate in contact with the outer periphery of the first mesh disc 410 and the second mesh disc 420, respectively, and are driven by a motor (not shown) to rotate in the directions indicated by reference numerals R12 and R14. . Due to the rotation of the drive roller 413, the first mesh disk 410 rotates in the direction indicated by the reference symbol R11 about the rotation center O11 shown in FIG. By the rotation of the drive roller 423, the second mesh disk 420 rotates in the rotation direction R13 about the rotation center O12 shown in FIG. The rotational speeds of the drive rollers 413 and 423, the first mesh disc 410, and the second mesh disc 420 may be set appropriately, and may be controllable by, for example, the control device 110 (FIG. 1).

  Each of the first mesh disc 410 and the second mesh disc 420 is arranged to constitute a horizontal surface in the installed state of the sheet manufacturing apparatus 100. The installation angle of the first mesh disc 410 and the second mesh disc 420 is arbitrary, and may be installed vertically (parallel to the vertical direction), for example, or may be installed inclined with respect to the horizontal plane. In the present embodiment, it is preferable that the state in which the deposit ME rests on the first mesh disk 410 can be continued for a predetermined time. For this reason, it is preferable that the first mesh disc 410 and the second mesh disc 420 be installed horizontally or at an angle close to the horizontal. The installation angles of the first mesh disc 410 and the second mesh disc 420 are kept constant by the support parts 415 and 425 supporting the first mesh disc 410 and the second mesh disc 420.

  The configuration for supporting and rotating the first mesh disc 410 and the second mesh disc 420 is not limited to the support portions 415 and 425 and the drive rollers 413 and 423. For example, the rotation axis is joined to each of the rotation center O11 of the first mesh disk 410 and the rotation center O12 of the second mesh disk 420, and the first mesh disk 410 and the second mesh disk are joined by each rotation shaft. The support 420 may be configured to be supported and rotated.

  The pipes 431, 433, 435, 437, and 439 described later are disposed substantially in the vertical direction. Although the installation angle of these is arbitrary, it is preferable that the opening surface of each pipe faces the surface of the 1st mesh disc 410 or the 2nd mesh disc 420, respectively.

The separation unit 40 includes a tube 431 located on the upper surface side of the first mesh disk 410 and a tube 435 and a tube 439 located on the lower surface side of the first mesh disk 410. Further, the separation unit 40 includes a tube 437 located on the upper surface side of the second mesh disk 420 and a tube 433 located on the lower surface side of the second mesh disk 420.
The pipe 431 and the pipe 437 are at different positions in the rotation range (rotation range) of the first mesh disc 410. The same applies to the tube 435 and the tube 439. In addition, the pipe 439 and the pipe 433 are at different positions in the rotation range (rotation range) of the second mesh disk 420.

  The tube 431 is in communication with the tube 4 (FIG. 1), and the tube 4 supplies the defibrated material MB together with the air flow generated by the defibrating unit blower 26 (FIG. 1). The pipe 431 blows the defibrated material MB together with the air flow B41 toward the first mesh 411. The tube 435 is disposed to face the tube 431 with the first mesh 411 interposed therebetween. The pipe 435 is in communication with the pipe 8 (FIG. 1) and generates an air flow B 42 by the suction force of the collection blower 28 (FIG. 1). The air flow B42 corresponds to the first air flow of the present invention, and the first air flow may include the air flow B41.

  In the separation unit 40, a portion where the pipe 435 faces the first mesh 411 is referred to as a first separation unit 441. In the first separation unit 441, the air flows B 41 and B 42 penetrate the first mesh 411. Moreover, the position where the pipe 435 faces in the first mesh 411 corresponds to the first position.

  In the first separation unit 441, when the tube 431 sprays the defibrated material MB onto the first mesh 411 together with the air flow B41, a component of the defibrated material MB that passes through the first mesh 411 is suctioned together with the air flow B42. Be done. On the other hand, the component which does not pass the 1st mesh 411 among the components contained in the defibrated material MB is deposited on the 1st mesh 411, and becomes the deposit ME. The component that passes through the first mesh 411 is the above-described dust MD, and the component that does not pass includes the processing material MC. That is, in the first separation unit 441, the defibrated material MB is separated into the deposit ME including the processing material MC and the dust MD.

  The deposit ME deposited on the first mesh 411 moves in the rotational direction R11 with the rotation of the first mesh disk 410 and reaches immediately below the pipe 437. The pipe 437 is a pipe connected to the pipe 8 and sucks air by the suction force of the collection blower 28 to generate an air flow B52. At a position opposite to the tube 437, a tube 439 is disposed. The pipe 439 is a pipe that supplies air from the outside of the separation unit 40, and supplies, for example, the humidified air supplied by the humidification unit 202 (FIG. 1) or the outside air. Since the pipe 437 and the pipe 439 are disposed opposite to each other, an air flow B51 and an air flow B52 directed from the pipe 439 to the pipe 437 flow. The air flow B52 corresponds to the second air flow of the present invention, and the second air flow may include the air flow B51.

In the separation unit 40, a portion where the pipe 437 faces the second mesh 421 is referred to as a second separation unit 442. In the second separation unit 442, the first mesh 411 and the second mesh 421 face each other, and this position corresponds to a second position.
The second separation portion 442 is configured by arranging the tubes 437 and 439 at positions where the rotation range of the first mesh disk 410 and the rotation range of the second mesh disk 420 overlap.

  In the second separation portion 442, the surface of the first mesh 411 on which the deposit ME is deposited and the surface of the second mesh 421 face each other. Also, the pipe 439 is disposed on the opposite side of the surface on which the deposit ME is deposited in the first mesh 411, and the pipe 437 is disposed on the opposite side of the second mesh 421 to the surface facing the first mesh 411. Ru. With this configuration, air flows B51 and B52 flow from the pipe 439 to the pipe 437 through the first mesh 411 and the second mesh 421 at the position where the first mesh 411 and the second mesh 421 overlap.

The air flow B51 pushes up the deposit ME deposited on the first mesh 411 and moves it to the second mesh 421 side. The air flow B 52 attracts the deposit ME of the first mesh 411 toward the second mesh 421. The deposit ME moves from the first mesh 411 to the second mesh 421 in the second separation unit 442 by the action of the air flows B51 and B52.
Furthermore, in the second separation unit 442, when the air flow B52 flows through the deposit ME attached to the second mesh 421, among the components included in the deposit ME, the component passing through the second mesh belt 521 becomes dust MD. Sucked into tube 437. That is, in the second separation unit 442, the dust MD containing the deposit ME is separated and removed.

  The deposit ME attached to the second mesh 421 moves in the rotational direction R12 with the rotation of the second mesh disk 420 and reaches a position overlapping with the pipe 433. A portion where the pipe 433 and the second mesh 421 face each other in the separation unit 40 is referred to as a collection unit 443. The pipe 433 is connected to the pipe 6 and generates an air flow B62 by the suction force of the mixing blower 56 (FIG. 1). The surface of the second mesh 421 opposite to the surface to which the deposit ME is attached is open, and an air flow B61 directed to the second mesh 421 is generated along with the air flow B62.

  In the collection unit 443, the separation unit 40 sucks the deposit ME attached to the second mesh 421 through the pipe 433 and collects it as the processing material MC.

  As described above, the separation unit 40 according to the second embodiment sprays the defibrated material MB on the first mesh 411 by the pipe 431 in the first separation unit 441 to separate the components passing through the first mesh 411, and dust Recovered by pipe 435 as MD. In addition, components that do not pass through the first mesh 411 are deposited as deposits ME on the first mesh 411, and the second separation unit 442 moves the first mesh 411 to the second mesh 421. Further, the separation unit 40 separates the component passing through the second mesh 421 from the deposit ME attached to the second mesh 421 in the second separation unit 442. The separated components are recovered by a tube 437 as dust MD. In addition, components that do not pass through the second mesh 421 are attached as deposits ME, moved to the collection unit 443, and collected by the pipe 433 in the collection unit 443.

  In the first separation unit 441, the separation unit 40 sucks the lower surface of the deposit ME in the drawing by the air flow B42, and in the second separation unit 442, the suction upper surface of the deposit ME in the drawing is suctioned by the air flow B52. Do. For this reason, as described above with reference to FIG. 5, the dust MD can be sucked from the deposit ME on two surfaces, and the dust MD can be separated and removed more reliably.

  Further, as shown in FIG. 6, the deposit ME deposited in the first separation portion 441 moves in an arc in the rotational direction R11, and the tube 437 moves the deposit ME on the first mesh 411. Placed at a position overlapping the trajectory of Moreover, in FIG. 6, the deposit ME adhering to the 2nd mesh 421 is shown with an imaginary line and white. The deposit ME moves in an arc in the rotational direction R13 from the second separation portion 442 and reaches a position facing the pipe 433. The position of the opening of the tube 433 is indicated by an imaginary line VP.

Here, as shown in FIG. 6, the trajectory of movement of the deposit ME in the first mesh 411 is a circle starting from the first separation unit 441, ending at the second separation unit 442, and centered on the rotation center O 11. It is arc-shaped. By setting the first separation unit 441 and the second separation unit 442 at a position closer to one side with respect to the rotation center O11, the trajectory of the deposit ME can be made a longer distance.
Similarly, the locus of movement of the deposit ME in the second mesh 421 is arc-shaped starting from the second separation part 442 and ending with the collection part 443 and centered on the rotation center O12. By setting the second separation unit 442 and the collection unit 443 at a position closer to one side with respect to the rotation center O12, the trajectory of the deposit ME can be made longer.

  The separating unit 40 can include, for example, the humidifying unit 202 as in the separating unit 30, and the space including each unit of the separating unit 40 can be conditioned by the humidified air supplied from the humidifying unit 202. . In this case, as the track of the deposit ME on the first mesh 411 and the second mesh 421 is longer, the deposit ME can be conditioned because the deposit ME is exposed to the conditioned air. For this reason, in the separation part 40, the adhesion of the deposit ME and the dust MD due to static electricity can be suppressed, and the separation can be performed efficiently.

Also, although the size and shape of the openings of the tubes 431, 433, 435, 437, 439 are arbitrary, for example, the opening of the tube 435 is preferably larger than the opening of the tube 431. In this case, the air flow B41 of the pipe 431 can flow to the inside of the pipe 435 without leakage. Similarly, in the oppositely disposed pipe 437 and the pipe 439, the opening of the pipe 437 is preferably larger than the opening of the pipe 439.
Moreover, when the tube 431 disperses the defibrated material MB in a wide range in the first mesh 411, the dust MD can be separated and removed more efficiently. For this reason, it is preferable that the open area of the tube 431 be large, for example, it is desirable to use a circular opening.

  Also, the tube 433 has a size in the radial direction of the second mesh disc 420 at least larger than the area where the deposit ME adheres so that the deposit ME attached to the second mesh 421 can be collected without leakage. Is preferred. Also, the smaller the open area of the tube 433 is, the faster the flow velocity of the air flow B62 becomes. For this reason, the tube 433 preferably has an opening with a large size in the radial direction of the second mesh disk 420 and a small area, and can be, for example, an elongated rectangle or an oval.

  Further, as shown in FIG. 6, the separation unit 40 includes partition rollers 461, 462, 465, and 466. The divider roller 461 and the divider roller 462 are disposed in contact with or in proximity to the surface of the first mesh 411. The partition roller 461 and the partition roller 462 block or suppress the air flow between the first separating portion 441 and the second separating portion 442, more specifically, the opening of the pipe 431 and the opening of the pipe 437. Therefore, the partition rollers 461 and 462 can prevent the sediment ME and the dust MD from flowing or scattering in an unintended direction.

  The partition rollers 461 and 462 preferably rotate as the first mesh disk 410 rotates. For this reason, as shown in FIG. 6, it is preferable that the partitioning rollers 461 and 462 have a truncated cone shape in which the outer peripheral side of the first mesh disk 410 has a large diameter and the rotation center O11 side has a small diameter.

  The divider roller 465 and the divider roller 465 are disposed in contact with or in proximity to the surface of the second mesh 421. The partition roller 465 and the partition roller 466 block or suppress the air flow between the second separation unit 442 and the collection unit 443, specifically, between the pipe 437 and the pipe 433. The partition rollers 465 and 466 can prevent the sediment ME and the dust MD from flowing or scattering in an unintended direction. The partition rollers 465 and 466 preferably rotate as the second mesh disk 420 rotates. For this reason, as shown in FIG. 6, it is preferable that the partitioning rollers 465 and 465 have a truncated cone shape in which the outer peripheral side of the second mesh disk 420 has a large diameter and the rotation center O12 has a small diameter.

  As described above, the separation unit 40 of the second embodiment to which the present invention is applied includes the first mesh 411 for depositing the defibrated material MB, which is a separation material containing fibers, as the deposit ME. . Further, the separation unit 40 includes a first separation unit 441 that sucks the first surface of the deposit ME through the first mesh 411. Further, the separating unit 40 attracts the second surface opposite to the first surface of the deposit ME through the second mesh 421 to deposit the second separating unit 442 for depositing the deposit ME on the second mesh 421. Have.

  With this configuration, the separation unit 40 can separate the processing material MC and the dust MD quickly and efficiently by sucking the defibrated material MB through the first mesh 411 and the second mesh 421. Further, by combining the suction from the first surface of the defibrated material MB and the suction from the second surface, the dust MD can be more reliably separated from the material for processing MC.

  The second separation unit 442 generates an air flow B52 that passes through both the first mesh 411 and the second mesh 421 in a state where the second mesh 421 faces the first mesh 411. Therefore, the dust MD can be separated from the deposit ME deposited on the first mesh 411 by the air flow B52, and the deposit ME can be moved to the second mesh 421. Therefore, the deposit ME can be easily recovered at the second mesh 421, and the separation efficiency can be further enhanced.

  In the separation unit 40, the first mesh 411 is configured to be rotatable. In addition, the air flow B 42 flowing to the first mesh 411 in the first separation unit 441 and the air flow B 52 flowing through the first mesh 411 and the second mesh 421 in the second separation unit 442 correspond to the rotation range of the first mesh 411 (rotation Flow in different locations. Thereby, the air flow B42 and the air flow B52 are allowed to pass at different positions in the first mesh 411, thereby preventing scattering and mixing of the separated component (dust MD), and is more efficiently contained in the defibrated material MB The dust MD can be separated from the processing material MC.

  Further, since the air flow B42 and the air flow B52 are air flows in the opposite direction, the dust MD, which is a component contained in the defibrated material MB, and the processing material MC can be separated more efficiently.

  In addition, the first mesh 411 and the second mesh 421 are flat, and are rotated by the respective driving units, and the first separation unit 441 is a position not facing the second mesh 421 in the plane of the first mesh 411 (first Aspiration through tube 435). The second separation unit 442 suctions the deposit ME by the air flow B52 flowing from the first mesh 411 to the second mesh 421 at a position where the first mesh 411 and the second mesh 421 face each other. For this reason, the components included in the defibrated material MB can be efficiently separated into the processing material MC and the dust MD by a simple configuration in which the air flow is passed through the flat first mesh 411 and the second mesh 421. Further, by rotating the first mesh 411 and the second mesh 421, the defibrated material MB can be separated continuously, and a large amount of the defibrated material MB can be processed in a short time.

  Further, since the separation unit 40 includes the collection unit 443 that collects the deposit ME deposited on the second mesh 421, the processing raw material MC including high-quality fibers is efficiently extracted from the defibrated material MB. Can.

  The separation unit 40 can be incorporated into the sheet manufacturing apparatus 100 (FIG. 1) instead of the separation unit 30. The sheet manufacturing apparatus 100 includes a defibrating unit 20 that defibrates the raw material MA containing fibers, a regenerating unit 102 that processes the defibrated material MB, and a transport unit that transports the fibrillated material MB from the fibrillating unit 20 to the reclaiming unit 102 5 and the separation unit 40 provided in the transport unit 5. The sheet manufacturing apparatus 100 separates the fibrillated product MB obtained by fibrillating the raw material MA containing fibers into the raw material MC for processing and the dust MD, and can efficiently take out the fibers contained in the raw material MA. By processing the fibers, the raw material MA can be regenerated efficiently.

  In the second embodiment, a pipe for supplying the outside air or conditioned air may be provided at a position facing the pipe 433 and the second mesh 421. In addition, a humidifier may be provided which moistens the deposit ME deposited on the first mesh 411 and / or the deposit ME attached to the second mesh 421 by supplying moisture like mist.

[3. Third embodiment]
FIG. 8 is a schematic configuration diagram of the separation unit of the third embodiment to which the present invention is applied. Hereinafter, the third embodiment will be described with reference to FIG.
The separating unit 40A is disposed in the sheet manufacturing apparatus 100, instead of the separating unit 30 of the first embodiment described above. Therefore, the sheet manufacturing apparatus 100 according to the third embodiment does not have the separating unit 30, and includes the separating unit 40A connected to the pipes 4, 6, 8. The other configuration of the sheet manufacturing apparatus 100 is the same as that of the first embodiment, and thus the illustration and the description thereof will be omitted.

  Similar to the case 301 (FIG. 2), the separating unit 40A shown in FIG. 6 is housed, for example, in a box-shaped case (not shown).

  The separation unit 40A (fiber processing apparatus) separates the defibrated material MB flowing from the pipe 4 according to the size. In detail, the separating unit 40A separates the components contained in the defibrated material MB into the processing material MC mainly composed of fibers and the dust MD including particles smaller than the processing material MC. The processing material MC and the dust MD are as described above.

The separation unit 40A includes a first deposition unit 510 and a second deposition unit 520, and tubes 531, 533, 535, 537, 539, and 541.
The first deposition unit 510 includes an endless first mesh belt 511 (first mesh portion) stretched around a plurality of rollers 513. Further, the second deposition unit 520 includes an endless second mesh belt 521 (second mesh portion) stretched around the plurality of rollers 523.

The first mesh belt 511 and the second mesh belt 521 are each driven by a motor (not shown) and conveyed in the directions indicated by reference numerals M11 and M12.
The first mesh belt 511 and the second mesh belt 521 are metal or synthetic resin belts provided with a plurality of openings, and function as a filter having a predetermined size of opening or a sieve. The sizes of the openings of the first mesh belt 511 and the second mesh belt 521 are arbitrary and may be the same size or different sizes, and may be, for example, about 0.1 mm.

  The first deposition unit 510 and the second deposition unit 520 are arranged such that a portion of the first mesh belt 511 and a portion of the second mesh belt 521 overlap. That is, a part in the range in which the first mesh belt 511 is conveyed and a part in the range in which the second mesh belt 521 is conveyed overlap in the vertical direction (UP-DN in the figure). . In this overlapping portion, one surface of the first mesh belt 511 and one surface of the second mesh belt 521 face each other.

The tube 531 is located above the first mesh belt 511 and opens opposite to the first mesh belt 511. The pipe 531 is in communication with the pipe 4 (FIG. 1), and the pipe 4 supplies the defibrated material MB together with the air flow generated by the defibrating unit blower 26 (FIG. 1). The pipe 531 blows the defibrated material MB together with the air flow B71 toward the first mesh belt 511.
The pipe 535 is located below the first mesh belt 511 and is opposed to the pipe 531 with the first mesh belt 511 interposed therebetween. The pipe 535 is in communication with the pipe 8 (FIG. 1) and generates an air flow B72 by the suction force of the collection blower 28 (FIG. 1). The air flow B72 corresponds to the first air flow of the present invention, and the first air flow may include the air flow B71.

  In the separation unit 40A, a portion where the pipe 531 faces the first mesh belt 511 is referred to as a first separation unit 551. In the first separation unit 551, the air flows B 71 and B 72 penetrate the first mesh belt 511. In the first separation unit 551, when the tube 531 sprays the defibrated material MB on the first mesh belt 511 together with the air flow B71, a component of the defibrated material MB that passes through the first mesh belt 511 is the air current B72. It is sucked with. On the other hand, among the components contained in the defibrated material MB, the component that does not pass through the first mesh belt 511 is deposited on the first mesh belt 511 to become a deposit ME. The component passing through the first mesh belt 511 is the dust MD described above, and the component not passing through includes the processing material MC. That is, in the first separation unit 551, the defibrated material MB is separated into the deposit ME including the processing material MC and the dust MD.

  The deposit ME deposited on the first mesh belt 511 moves in the belt driving direction M11 together with the first mesh belt 511, and moves to a position where the first mesh belt 511 overlaps the second mesh belt 521. At this position, a pipe 539 is disposed above the second mesh belt 521. The pipe 539 is a pipe connected to the pipe 8 and sucks air by the suction force of the collection blower 28 to generate an air flow B82. At a position opposite to the pipe 539, a pipe 537 is disposed. The tube 537 is disposed below the first mesh belt 511. That is, the pipe 537 and the pipe 539 face each other with the first mesh belt 511 and the second mesh belt 521 interposed therebetween.

The pipe 537 is a pipe that supplies air from the outside of the separation unit 40A, and supplies, for example, the humidified air supplied by the humidification unit 202 (FIG. 1) or the outside air. With the pipe 539 and the pipe 537 arranged opposite to each other, an air flow B81 from the pipe 537 toward the pipe 539 and an air flow B82 flow.
The air flow B82 corresponds to the second air flow of the present invention, and the second air flow may include the air flow B81. The air flows B81 and B82 flow from the pipe 537 to the pipe 539 through both the first mesh belt 511 and the second mesh belt 521.

  A portion of the separation portion 40A where the pipe 539 faces the second mesh belt 521 is referred to as a second separation portion 552. In the second separation portion 552, the surface of the first mesh belt 511 on which the deposit ME is deposited and the surface of the second mesh belt 521 face each other. The air flow B 81 pushes up the deposit ME deposited on the first mesh belt 511 and moves it to the second mesh belt 521 side. The air flow B 82 attracts the deposit ME of the first mesh belt 511 to the second mesh belt 521 side. The deposit ME moves from the first mesh belt 511 to the second mesh belt 521 in the second separation portion 552 by the action of the air flows B81 and B82.

  Furthermore, in the second separation unit 552, when the air flow B82 flows through the deposit ME attached to the second mesh belt 521, among the components included in the deposit ME, the component passing through the second mesh belt 521 is dust MD As the tube 539 is aspirated. That is, in the second separation unit 552, the dust MD containing the deposit ME is separated and removed.

The deposit ME attached to the second mesh belt 521 moves in the belt driving direction M12 along with the conveyance of the second mesh belt 521.
In the second deposition unit 520, a tube 533 is provided to face the second mesh belt 521. The pipe 533 is connected to the pipe 6 and generates an air flow B92 by the suction force of the mixing blower 56 (FIG. 1). A portion where the pipe 533 and the second mesh belt 521 face each other in the separation unit 40A is referred to as a collection unit 553. In the collection unit 553, the pipe 541 is disposed at a position facing the pipe 533 with the second mesh belt 521 interposed therebetween. The pipe 541 is a pipe that supplies air from the outside of the separation unit 40A, and supplies, for example, the humidified air supplied by the humidification unit 202 or the outside air.

  Since the pipe 541 is disposed to face the pipe 533, the suction force of the air flow B92 causes the air flow B91 flowing from the pipe 541 to the pipe 533 to flow. In the collection unit 553, the separation unit 40A sucks the deposit ME attached to the second mesh belt 521 by the pipe 533 and collects it as the processing material MC.

  As described above, the separation unit 40A of the third embodiment sprays the defibrated material MB onto the first mesh belt 511 by the pipe 531 in the first separation unit 551, and separates the components passing through the first mesh belt 511. , Collect as dust MD with pipe 535. In addition, components that do not pass through the first mesh belt 511 are deposited on the first mesh belt 511 as deposits ME, and are moved from the first mesh belt 511 to the second mesh belt 521 in the second separation unit 552. Further, the separating unit 40A separates the component passing through the second mesh belt 521 from the deposit ME attached to the second mesh belt 521 in the second separating unit 552. The separated components are collected by a pipe 539 as dust MD. In addition, components that do not pass through the second mesh belt 521 are attached as deposits ME, moved to the collection unit 553, and collected by the pipe 533 in the collection unit 553.

  In the first separation unit 551, the separation unit 40A sucks the lower surface of the deposit ME in the drawing by the air flow B72, and in the second separation unit 552, the suction upper surface of the deposit ME in the drawing is suctioned by the air flow B82. Do. For this reason, as described above with reference to FIG. 5, the dust MD can be sucked from the deposit ME on two surfaces, and the dust MD can be separated and removed more reliably.

  The separating unit 40A can include, for example, the humidifying unit 202 in the same manner as the separating unit 30, and the space including the respective units of the separating unit 40A can be conditioned by the humidified air supplied from the humidifying unit 202. . In this case, the deposits ME on the first mesh belt 511 and the second mesh belt 521 are exposed to conditioned air and conditioned. For this reason, in the separation unit 40A, adhesion of the deposit ME and the dust MD due to static electricity can be suppressed, and the separation can be performed efficiently.

  As described above, the separation unit 40A according to the third embodiment to which the present invention is applied includes the first mesh belt 511 on which the defibrated material MB, which is a separation material containing fibers, is deposited as the deposit ME. Further, the separation unit 40A includes a first separation unit 551 that sucks the first surface of the deposit ME through the first mesh belt 511. In addition, the separation unit 40A deposits the deposit ME on the second mesh belt 521 by attracting the second surface opposite to the first surface of the deposit ME through the second mesh belt 521. It has 552.

  With this configuration, the separation unit 40A can separate the processing material MC and the dust MD quickly and efficiently by sucking the defibrated material MB through the first mesh belt 511 and the second mesh belt 521. Further, by combining the suction from the first surface of the defibrated material MB and the suction from the second surface, the dust MD can be more reliably separated from the material for processing MC.

  The second separation unit 552 generates an air flow B 82 passing through both the first mesh belt 511 and the second mesh belt 521 in a state in which the second mesh belt 521 faces the first mesh belt 511. Therefore, the dust MD can be separated from the deposit ME deposited on the first mesh belt 511 by the air flow B 82, and the deposit ME can be moved to the second mesh belt 521. Therefore, the deposit ME can be easily recovered by the second mesh belt 521, and the separation efficiency can be further enhanced.

Further, since the air flow B72 and the air flow B82 are air flows in the opposite direction, the dust MD, which is a component contained in the defibrated material MB, and the processing material MC can be separated more efficiently.
Further, since the separation unit 40A includes the collection unit 553 that collects the deposit ME deposited on the second mesh belt 521, the processing raw material MC including high-quality fibers is efficiently extracted from the defibrated material MB be able to.

  The separation unit 40A can be incorporated into the sheet manufacturing apparatus 100 (FIG. 1) instead of the separation unit 30. In this case, the sheet manufacturing apparatus 100 includes the defibrating unit 20, the regenerating unit 102, and the conveyance unit 5, and includes the separation unit 40A provided in the conveyance unit 5. The sheet manufacturing apparatus 100 separates the defibrated material MB obtained by disintegrating the raw material MA including fibers into the raw material MC for processing and the dust MD. Therefore, the raw material MA can be efficiently regenerated by efficiently removing the fibers contained in the raw material MA and processing the removed fibers.

  In the third embodiment, the deposit ME deposited on the first mesh belt 511 and / or the deposit ME attached to the second mesh belt 521 is also provided with a humidifier that applies moisture in the form of mist to humidify the deposit ME. Good.

[4. Other embodiments]
Each embodiment mentioned above is only a concrete mode which carries out the present invention described in a claim, and does not limit the present invention, and in the range which does not deviate from the gist, for example, as shown below, And can be implemented in various aspects.

  In the first embodiment, an example using two first drums 310 and second drums 320 has been described, but the present invention is not limited thereto. For example, the defibrated material MB may be separated using three or more drums having a mesh. Similarly, in addition to the first mesh disc 410 and the second mesh disc 420 of the second embodiment, one or more mesh discs may be used. In addition, in addition to the first deposition unit 510 and the second deposition unit 520, a deposition unit having one or more mesh belts may be used in the third embodiment. Further, the separating units 30, 40, and 40A are not limited to the example used in the sheet manufacturing apparatus 100, and may be applied to various devices as long as they are devices for separating the separation target into a plurality of components.

  In the separation unit 30 described in the first embodiment, a brush or the like may be disposed in a gap formed between each tube and the surface of the first mesh 311 or the second mesh 321. In the separating unit 40 according to the second embodiment, a brush that closes a gap formed between each tube and the surface of the first mesh 411 or the second mesh 421 can be similarly realized. Moreover, in the separation part 40A of the third embodiment, a brush or the like may be disposed in the gap formed between each tube and the surface of the first mesh belt 511 or the second mesh belt 521.

  Further, the sheet manufacturing apparatus 100 is not limited to the sheet S, and may be a board-like or web-like sheet composed of a hard sheet or a laminated sheet, regardless of which of the separating units 30, 40, 40A. It may be configured to manufacture a product. Further, the product is not limited to paper, and may be non-woven fabric. The properties of the sheet S are not particularly limited, and may be paper usable as recording paper (for example, so-called PPC paper) for the purpose of writing or printing, and may be wallpaper, wrapping paper, colored paper, drawing paper, Kent paper, etc. It may be. When the sheet S is a non-woven fabric, in addition to a general non-woven fabric, a fiber board, a tissue paper, a kitchen paper, a cleaner, a filter, a liquid absorber, a sound absorber, a buffer, a mat, etc. may be used.

  Further, the sheet manufacturing apparatus 100 has been described as a dry sheet manufacturing apparatus 100 that manufactures a sheet S by using the material and a resin to obtain a material by disintegrating the raw material MA in the air. The application object of the present invention is not limited to this, and it can also be applied to a so-called wet sheet manufacturing apparatus in which a raw material containing fibers is dissolved or suspended in a solvent such as water and this raw material is processed into a sheet. The present invention can also be applied to an electrostatic sheet manufacturing apparatus in which a material containing fibers disintegrated in air is adsorbed on the surface of a drum by static electricity or the like, and the raw material adsorbed on the drum is processed into a sheet.

  2, 4, 6, 7, 8, 8 tubes, 4A, 6A openings, 5 transport units, 10 supply units, 12 crushing units, 20 defibrillating units, 26 defibrillating units blowers, 27 collecting units Dust part, 28: collection blower, 30, 40, 40A: separation part (fiber processing apparatus), 50: mixing part, 52: additive supply part, 56: mixing blower, 60: deposition part, 70: web forming part , 79: Conveying unit, 80: Sheet forming unit, 90: Cutting unit, 96: Discharge unit, 100: Sheet manufacturing apparatus (fiber material regenerating apparatus), 101: Disintegration processing unit, 102: Reproducing unit (processing unit), DESCRIPTION OF SYMBOLS 110 ... Control device, 301 ... Case, 303, 307 ... Suction pipe, 305, 309 ... Supply pipe, 303A, 305A, 307A, 309A ... Opening, 310 ... 1st drum (1st pipe | tube), 311 ... 1st mesh (1st mesh part), 313, 323 ... partition plate, 317 327: driving roller (driving portion) 320: second drum (second cylinder) 321: second mesh (second mesh portion) 331: first separating portion 332: second separating portion 333: capturing Collector portion 410: first mesh disk 411: first mesh (first mesh portion) 413, 423: driving roller (drive portion) 415: support portion 420: second mesh disk 421: first 2 mesh (second mesh portion) 423 drive roller 425 support portion 431 433 435 437 439 tube 441 first separation portion 442 second separation portion 443 collection portion , 461, 462, 465, 466 ... partitioning roller, 510 ... first deposition section, 511 ... first mesh belt (first mesh section), 513 ... roller, 520 ... second deposition section, 521 ... second mesh belt ( 2 mesh part), 523: roller, 531, 533, 535, 537, 539, 541: tube, 551: first separation part, 552: second separation part, 553: collection part, B11, B21, B31, B32 , B41, B51, B61, B62, B71, B81, B91, B92: air flow, B12, B42, B72: air flow (first air flow) B22, B52, B82: air flow (second air flow), F: transport direction, M11, M12: belt drive direction, MA: raw material, MB: defibrated material (material to be separated), MC: raw material for processing, MD: dust, ME: deposit, O1, O2: central axis of rotation (axis), O11 , O12: rotation center, S: sheet, SF1: first surface, SF2: second surface.

Claims (9)

A separated material containing fibers,
A first mesh portion for depositing the material to be separated as a deposit;
A first separation portion for suctioning the first surface of the deposit through the first mesh portion;
And a second separation portion for depositing the deposit on the second mesh portion by suctioning a second surface of the deposit opposite to the first surface through a second mesh portion. Textile processing equipment.   The second separation unit according to claim 1, wherein the second separation unit generates an air flow passing through both the first mesh unit and the second mesh unit in a state in which the second mesh unit faces the first mesh unit. Fiber processing equipment. The first mesh portion is configured to be rotatable.
The first air flow flowing to the first mesh portion in the first separation portion, and the second air flow flowing through the first mesh portion and the second mesh portion in the second separation portion correspond to the speed of the first mesh portion The fiber processing apparatus according to claim 2, wherein the fiber flows in different positions in the movement range.   The fiber processing apparatus according to claim 3, wherein the first air flow and the second air flow are air flows in opposite directions. The first mesh portion is constituted by a first cylinder having a mesh formed on the circumferential surface, and the second mesh portion is constituted by a second cylinder having a mesh formed on the circumferential surface,
The first separation part sucks in from the outside of the first cylinder at a position not facing the second cylinder on the circumferential surface of the first cylinder,
The second separation portion sucks from the first cylinder toward the second cylinder at a position where the peripheral surface of the first cylinder and the peripheral surface of the second cylinder face each other. The fiber processing apparatus according to any one of 1 to 4. A drive unit configured to rotate the first cylinder and the second cylinder about an axis;
The first separation unit is a supply unit that supplies an air flow including the material to be separated from the outside of the first cylinder, and a first air flow generation unit that generates an air flow that flows inward from the outside of the first cylinder , And
The fiber treatment according to claim 5, wherein the second separation unit includes a second air flow generation unit that generates an air flow that is directed from the inside of the first cylinder to the outside and the inside of the second cylinder from the inside. apparatus. The first mesh portion and the second mesh portion have a flat plate shape, and are respectively rotated by a driving portion,
The first separating portion sucks at a first position not facing the second mesh portion in the plane of the first mesh portion,
The second separation unit sucks the deposit by an air flow flowing from the first mesh unit to the second mesh unit at a second position where the first mesh unit and the second mesh unit face each other. The fiber processing apparatus of any one of claim 2 to 4.   The fiber processing apparatus of any one of Claim 1 to 7 provided with the collection part which collects the deposit deposited on said 2nd mesh part. A fibrillation unit for fibrillating a raw material containing fibers,
A processing unit for processing the defibrated material disintegrated by the disintegration unit;
A conveying unit that conveys the defibrated material by a conveying air flow from the defibrating unit to the processing unit;
And a separation unit provided in the transport unit,
The separation unit is
A first mesh portion for depositing the defibrated material as a deposit;
A first separation portion for suctioning the first surface of the deposit through the first mesh portion;
And a second separation portion for depositing the deposit on the second mesh portion by suctioning a second surface of the deposit opposite to the first surface through a second mesh portion. Fiber raw material regeneration device.

Images