Fibrous body forming apparatus and method for controlling the fibrous body forming apparatus

Abstract

To provide a fiber body formation device excellent in convenience and a control method for the fiber body formation device.SOLUTION: A fiber body formation device has a deposition section having a discharge section to discharge a material including fibers and a deposition member to deposit the material discharged from the discharge section, a sheet substrate feed section to feed a sheet substrate vertically downward with respect to the discharge section, and a control section to control actuation of the deposition section and the sheet substrate feed section. The control section controls the actuation of the deposition section and the sheet substrate feed section so as to selectively implement a first mode to deposit the material on the deposit member and a second mode to feed the sheet substrate vertically downward with respect to the discharge section and deposit the material on the sheet substrate.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fibrous body forming apparatus and a method for controlling the fibrous body forming apparatus. [Background technology]

[0002] In recent years, dry-type fibrous body forming devices that use as little water as possible have been proposed. Dry-type fibrous body forming devices generally have a configuration that includes a defibrating unit that defibrates the raw material, a depositing unit that deposits the defibrated material produced in the defibrating unit, and a forming unit that forms the deposit produced in the depositing unit into a sheet shape.

[0003] In order to provide the sheet with the desired function, it is possible to adopt a configuration as described in Patent Document 1. In Patent Document 1, a nonwoven fabric is supplied, glass fibers are deposited on the nonwoven fabric, and the sheet with the desired function is manufactured by molding. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 5-132843 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the device described in Patent Document 1 is a dedicated device for producing functional sheets, and therefore does not support the method of producing only the deposit in a sheet form as described above, and is therefore less convenient. [Means for solving the problem]

[0006] The fibrous body forming device of the present invention comprises a deposition section having an ejection section that ejects a fiber-containing material and a deposition member that deposits the material ejected from the ejection section, a sheet substrate supply section that supplies a sheet substrate vertically below the ejection section, and a control section that controls the operation of the deposition section and the sheet substrate supply section, wherein the control section controls the operation of the deposition section and the sheet substrate supply section to selectively execute a first mode in which the material is deposited on the deposition member, and a second mode in which the sheet substrate is supplied vertically below the ejection section and the material is deposited on the sheet substrate.

[0007] The control method of the fibrous body forming device of the present invention includes a deposition unit having a discharge unit that discharges a material including fibers and a deposition member that deposits the material discharged from the discharge unit; A method for controlling a fibrous material deposition device comprising: a sheet substrate supply unit that supplies a sheet substrate vertically below the discharge unit, The method is characterized by controlling the operation of the deposition section and the sheet substrate supply section to selectively execute a first mode in which the material is deposited on the deposition member, and a second mode in which the sheet substrate is supplied vertically below the discharge section and the material is deposited on the sheet substrate. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic side view showing a first embodiment of a fibrous body forming device of the present invention. [Diagram 2] FIG. 2 is a schematic diagram showing the positional relationship of each part of the fibrous body forming device shown in FIG. [Diagram 3] FIG. 3 is a schematic configuration diagram of a deposition unit and its periphery included in the fibrous body forming device shown in FIG. 1, showing a state in which the first mode is being performed. [Figure 4] FIG. 4 is a schematic configuration diagram of the deposition unit and its periphery included in the fibrous body forming device shown in FIG. 1, showing a state in which the second mode is being performed. [Diagram 5]FIG. 5 is a diagram showing a schematic configuration of a sheet substrate supplying section included in the fibrous body forming apparatus shown in FIG. [Figure 6] FIG. 6 is a cross-sectional view of a sheet produced by the first mode of the fibrous body forming device shown in FIG. [Figure 7] FIG. 7 is a cross-sectional view of a sheet produced by the second mode of the fibrous body forming device shown in FIG. [Figure 8] FIG. 8 is a flowchart illustrating an example of a control operation executed by the control unit illustrated in FIG. [Figure 9] FIG. 9 is a flowchart illustrating an example of a control operation executed by the control unit included in the second embodiment of the fibrous body forming apparatus of the present invention. [Figure 10] FIG. 10 is a diagram showing an example of a display screen displayed by the second embodiment of the fibrous body forming device of the present invention. [Figure 11] FIG. 11 is a diagram showing an example of a display screen displayed by the second embodiment of the fibrous body forming device of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fibrous body forming device of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

[0010] First Embodiment FIG. 1 is a schematic side view showing a first embodiment of the fibrous body forming apparatus of the present invention. FIG. 2 is a schematic view showing the positional relationship of each part of the fibrous body forming apparatus shown in FIG. 1. FIG. 3 is a schematic configuration diagram of a deposition unit and its periphery provided in the fibrous body forming apparatus shown in FIG. 1, showing a state in which a first mode is being performed. FIG. 4 is a schematic configuration diagram of a deposition unit and its periphery provided in the fibrous body forming apparatus shown in FIG. 1, showing a state in which a second mode is being performed. FIG. 5 is a schematic configuration diagram of a sheet substrate supply unit provided in the fibrous body forming apparatus shown in FIG. 1. FIG. 6 is a cross-sectional view of a sheet produced by the first mode of the fibrous body forming apparatus shown in FIG. 1. FIG. 7 is a cross-sectional view of a sheet produced by the second mode of the fibrous body forming apparatus shown in FIG. 1. FIG. 8 is a flow chart for explaining an example of a control operation executed by the control unit shown in FIG. 1.

[0011] For ease of explanation, in the following, three mutually orthogonal axes are set as the x-axis, y-axis, and z-axis as shown in Figs. 2 to 5. The xy plane including the x-axis and y-axis is horizontal, and the z-axis is vertical. The direction in which the arrow of each axis points is called "+" and the opposite direction is called "-". The upper side of Figs. 1 to 4 is also called "top" or "upper", and the lower side is also called "bottom" or "lower".

[0012] In this specification, "horizontal" refers not only to a completely horizontal state, but also to a state tilted within a range of ±5° from the horizontal. Similarly, in this specification, "vertical" refers not only to a completely vertical state, but also to a state tilted within a range of ±5° from the vertical.

[0013] 1 is a schematic diagram created for easy understanding in order to explain a series of processes from the raw material M1 to the production of a sheet S. For this reason, the positional relationship of each part of the fibrous body forming apparatus 100 in FIG. 1 differs from the actual positional relationship. First, the overall configuration of the fibrous body forming apparatus 100 will be described.

[0014] As shown in Fig. 1 and Fig. 2, the fibrous body forming device 100 includes a raw material supplying section 11, a crushing section 12, a defibrating section 13, a sorting section 14, a first web forming section 15, a subdivision section 16, a mixing section 17, a defibrating section 18, a second web forming section 19, a heating and pressurizing section 20, a cutting section 21, a discharge section 22, a sheet base material supplying section 3, a recovery section 27, a control section 28, and a casing 50. The defibrating section 18 and the second web forming section 19 form a deposition section 30. Of these sections, the sections other than the raw material supplying section 11, the discharge section 22, and the sheet base material supplying section 3 are housed in the casing 50 as shown in Fig. 2. The control section 28 may be housed inside the casing 50 or may be installed outside.

[0015] The raw material supply section 11, coarse crushing section 12, defibrating section 13, sorting section 14, first web forming section 15, fine dividing section 16, mixing section 17, defibrating section 18, second web forming section 19, heating and pressurizing section 20, cutting section 21, discharge section 22 and recovery section 27 are each electrically connected to the control section 28, which controls their operation.

[0016] 1, the fibrous body forming apparatus 100 includes a humidifier 231, a humidifier 232, a humidifier 233, a humidifier 234, a humidifier 235, and a humidifier 236. In addition, the fibrous body forming apparatus 100 includes a blower 261, a blower 262, and a blower 263.

[0017] The humidifiers 231 to 236 and the blowers 261 to 263 are electrically connected to the control unit 28, and their operations are controlled by the control unit 28.

[0018] In addition, in the fibrous body forming apparatus 100, a raw material supply process, a first coarse crushing process, a defibrating process, a sorting process, a first web forming process, a cutting process, a mixing process, a loosening process, a second web forming process, a heating and pressurizing process, a cutting process, and a discharging process are carried out in this order.

[0019] As will be described in detail later, the fibrous body forming apparatus 100 can execute a first mode and a second mode. In the first mode, as shown in Fig. 3, a second web M8 is formed in the deposition unit 30, and the second web M8 is molded into a sheet S. In the second mode, as shown in Fig. 4, a second web M8 is deposited on a sheet substrate S1 in the deposition unit 30, and the laminate is molded into a sheet S.

[0020] The configuration of each part will be described below. As shown in FIG. 1 and FIG. 2, the raw material supplying section 11 is a section that performs a raw material supplying step of supplying raw material M1 to the crushing section 12. The raw material M1 is a sheet-like material made of a fiber-containing material containing cellulose fibers. The cellulose fibers may be fibrous and contain cellulose as a compound as a main component, and may contain hemicellulose and lignin in addition to cellulose. The raw material M1 may be in any form, such as woven fabric or nonwoven fabric. The raw material M1 may be, for example, recycled paper produced by disintegrating waste paper and regenerating it, or synthetic paper such as Yupo paper (registered trademark), or it may not be recycled paper. In this embodiment, the raw material M1 is used or unnecessary waste paper.

[0021] 2, the raw material supply unit 11 is fixed to a side wall located on the -x-axis side of the casing 50 and is provided in the casing 50. The raw material M1 supplied by the raw material supply unit 11 is supplied into the casing 50 through an inlet (not shown) provided in the casing 50, and is sent to the coarse crushing unit 12. This sending mechanism is not particularly limited, and for example, a sending roller or the like can be used.

[0022] The crushing unit 12 is a section that performs a first crushing step of crushing the raw material M1 supplied from the raw material supply unit 11 in air such as the atmosphere.

[0023] As shown in Fig. 1, a pair of crushing blades 121 each rotate around a rotation axis. By rotating in opposite directions, the crushing blades 121 can crush the raw material M1 between them, that is, cut it into crushed pieces M2. The shape and size of the crushed pieces M2 are preferably suitable for defibration processing in the defibration unit 13, and are preferably small pieces with a side length of 100 mm or less, and more preferably 10 mm to 70 mm.

[0024] The chute 122 is disposed below the pair of crushing blades 121 and has, for example, a funnel shape. This allows the chute 122 to receive the coarsely crushed pieces M2 that have been crushed by the crushing blades 121 and dropped.

[0025] As shown in Fig. 1, a humidifying section 231 is disposed adjacent to the pair of coarse crushing blades 121 above the chute 122. The humidifying section 231 humidifies the coarsely crushed pieces M2 in the chute 122. The humidifying section 231 is configured as a hot air vaporization type humidifier that has a moisture-containing filter (not shown) and supplies humidified air with increased humidity to the coarsely crushed pieces M2 by passing air through the filter. By supplying the humidified air to the coarsely crushed pieces M2, it is possible to prevent the coarsely crushed pieces M2 from adhering to the chute 122 and the like due to static electricity.

[0026] The chute 122 is connected to the defibrating unit 13 via a pipe 241. The coarse crushed pieces M2 collected in the chute 122 pass through the pipe 241 and are transported to the defibrating unit 13.

[0027] The defibrating unit 13 is a section that performs a defibrating process in which the coarsely crushed pieces M2 are defibrated in the air, i.e., in a dry manner. The defibrating process in this defibrating unit 13 makes it possible to generate a defibrated material M3 from the coarsely crushed pieces M2. Here, "defibrating" refers to untangling the coarsely crushed pieces M2, which are made up of multiple fibers bound together, into individual fibers. This untangled material becomes the defibrated material M3. The shape of the defibrated material M3 is linear or band-like. The defibrated material M3 may also be present in a state where it is entangled with other pieces to form a mass, that is, in a state where it forms so-called "lumps."

[0028] In this embodiment, for example, the defibrating unit 13 is configured with an impeller mill having a rotary blade that rotates at high speed and a liner located on the outer periphery of the rotary blade. The coarse fragments M2 that flow into the defibrating unit 13 are sandwiched between the rotary blade and the liner and defibrated.

[0029] Furthermore, the defibrating unit 13 can generate an air flow from the crushing unit 12 toward the sorting unit 14, i.e., an airflow, by the rotation of the rotary blades. This allows the coarsely crushed pieces M2 to be sucked into the defibrating unit 13 from the pipe 241. Furthermore, after the defibrating process, the defibrated material M3 can be sent to the sorting unit 14 via the pipe 242.

[0030] A blower 261 is installed in the middle of the pipe 242. The blower 261 is an airflow generating device that generates an airflow toward the screening section 14. This promotes the sending out of the defibrated material M3 to the screening section 14.

[0031] The sorting unit 14 is a section that performs a sorting process in which the defibrated material M3 is sorted according to the length of the fibers. In the sorting unit 14, the defibrated material M3 is sorted into a first sorted material M4-1 and a second sorted material M4-2 that is larger than the first sorted material M4-1. The first sorted material M4-1 has a size suitable for the subsequent production of the sheet S. It is preferable that the average length is 1 μm or more and 30 μm or less. On the other hand, the second sorted material M4-2 includes, for example, insufficiently defibrated material and material in which defibrated fibers are excessively aggregated.

[0032] The sorting unit 14 has a drum unit 141 and a housing unit 142 that houses the drum unit 141.

[0033] The drum part 141 is a sieve composed of a cylindrical mesh body and rotates around its central axis. The defibrated material M3 flows into this drum part 141. Then, as the drum part 141 rotates, the defibrated material M3 smaller than the mesh opening is sorted as the first sorted material M4-1, and the defibrated material M3 larger than the mesh opening is sorted as the second sorted material M4-2. The first sorted item M4-1 falls from the drum portion 141.

[0034] Meanwhile, the second sorted material M4-2 is sent to a pipe 243 connected to the drum section 141. The pipe 243 is connected to the pipe 241 on the side opposite the drum section 141, i.e., the upstream side. The second sorted material M4-2 that passes through this pipe 243 merges with the coarsely crushed pieces M2 in the pipe 241 and flows into the defibrating section 13 together with the coarsely crushed pieces M2. As a result, the second sorted material M4-2 is returned to the defibrating section 13 and is defibrated together with the coarsely crushed pieces M2.

[0035] The first selected object M4-1 that has fallen from the drum portion 141 falls while dispersing in the air, and heads toward the first web forming portion 15 located below the drum portion 141. The first web forming portion 15 is a portion that carries out a first web forming step of forming the first web M5 from the first selected object M4-1. The first web forming portion 15 has a mesh belt 151, three tension rollers 152, and a suction portion 153.

[0036] The mesh belt 151 is an endless belt on which the first sorted material M4-1 is accumulated. The mesh belt 151 is wound around three tension rollers 152. As the tension rollers 152 rotate, the first sorted material M4-1 on the mesh belt 151 is transported downstream.

[0037] The size of the first sorted material M4-1 is equal to or larger than the mesh size of the mesh belt 151. This restricts the passage of the first sorted material M4-1 through the mesh belt 151, and therefore the first sorted material M4-1 can be piled up on the mesh belt 151. Furthermore, the first sorted material M4-1 is transported downstream together with the mesh belt 151 while being piled up on the mesh belt 151, and is thus formed as a layered first web M5.

[0038] In addition, the first sorted material M4-1 may contain, for example, dust or dirt. Dust or dirt may be generated, for example, by crushing or defibrating. Such dust or dirt will be collected in the collection section 27, which will be described later.

[0039] The suction unit 153 is a suction mechanism that sucks air from below the mesh belt 151. This makes it possible to suck in dust and dirt that has passed through the mesh belt 151 together with the air.

[0040] In addition, the suction unit 153 is connected to the collection unit 27 via a pipe 244. The dust and dirt sucked by the suction unit 153 is collected in the collection unit 27.

[0041] A pipe 245 is further connected to the collection unit 27. A blower 262 is installed in the middle of the pipe 245. By operating the blower 262, a suction force can be generated in the suction unit 153. This promotes the formation of the first web M5 on the mesh belt 151. Dust and dirt are removed from this first web M5. By operating the blower 262, the dust and dirt pass through the pipe 244 and reach the collection unit 27.

[0042] The housing part 142 is connected to the humidifier part 232. The humidifier part 232 is configured with an evaporative or ultrasonic humidifier. This allows humidified air to be supplied into the housing part 142. The first sorted object M4-1 can be humidified by this humidified air, and therefore, the first sorted object M4-1 can be prevented from adhering to the inner wall of the housing part 142 due to electrostatic force.

[0043] A humidifying section 235 is disposed downstream of the sorting section 14. The humidifying section 235 is configured with an ultrasonic humidifier that sprays water. This allows moisture to be supplied to the first web M5, and thus the moisture content of the first web M5 is adjusted. This adjustment makes it possible to suppress adhesion of the first web M5 to the mesh belt 151 due to electrostatic force. As a result, the first web M5 is easily peeled off from the mesh belt 151 at the position where the mesh belt 151 is folded back by the tension roller 152.

[0044] The segmentation unit 16 is disposed downstream of the humidification unit 235. The segmentation unit 16 is a section that performs a segmentation step of segmenting the first web M5 peeled off from the mesh belt 151. The segmentation unit 16 has a rotatably supported propeller 161 and a housing portion 162 that houses the propeller 161. The rotating propeller 161 can segment the first web M5. The segmented first web M5 becomes segmented bodies M6. The segmented bodies M6 move down inside the housing portion 162.

[0045] The housing part 162 is connected to the humidifier part 233. The humidifier part 233 is configured with an evaporation type or ultrasonic humidifier. This allows humidified air to be supplied into the housing part 162. This humidified air can also prevent the fragmented bodies M6 from adhering to the propeller 161 or the inner wall of the housing part 162 due to electrostatic force.

[0046] A mixing section 17 is disposed downstream of the subdivision section 16. The mixing section 17 is a section that performs a mixing step of mixing the subdivision bodies M6 and the resin P1. The mixing section 17 has a resin supply section 171, a pipe 172, and a blower 173.

[0047] The pipe 172 connects the housing portion 162 of the subdividing portion 16 and the housing portion 182 of the refining portion 18, and is a flow path through which the mixture M7 of the subdivided bodies M6 and the resin P1 passes.

[0048] A resin supply unit 171 is connected to the middle of the pipe 172. The resin supply unit 171 has a screw feeder 174. By driving and rotating this screw feeder 174, it is possible to supply the resin P1 as powder or particles to the pipe 172. The resin P1 supplied to the pipe 172 is mixed with the fragmented bodies M6 to become a mixture M7.

[0049] The resin P1 is used to bond the fibers together in a later step, and may be, for example, a thermoplastic resin or a curable resin, although it is preferable to use a thermoplastic resin. Examples of the thermoplastic resin include polyolefins such as AS resin, ABS resin, polyethylene, polypropylene, and ethylene-vinyl acetate copolymer (EVA), modified polyolefins, acrylic resins such as polymethyl methacrylate, polyesters such as polyvinyl chloride, polystyrene, polyethylene terephthalate, and polybutylene terephthalate, polyamides (nylons) such as nylon 6, nylon 46, nylon 66, nylon 610, nylon 612, nylon 11, nylon 12, nylon 6-12, and nylon 6-66, liquid crystal polymers such as polyphenylene ether, polyacetal, polyether, polyphenylene oxide, polyether ether ketone, polycarbonate, polyphenylene sulfide, thermoplastic polyimide, polyetherimide, and aromatic polyester, and various thermoplastic elastomers such as styrene-based, polyolefin-based, polyvinyl chloride-based, polyurethane-based, polyester-based, polyamide-based, polybutadiene-based, trans-polyisoprene-based, fluororubber-based, and chlorinated polyethylene-based. One or more types selected from these may be used in combination. Preferably, the thermoplastic resin used is polyester or a material containing polyester.

[0050] In addition to the resin P1, the materials supplied from the resin supply unit 171 may include, for example, a colorant for coloring the fibers, an aggregation inhibitor for inhibiting aggregation of the fibers and aggregation of the resin P1, a flame retardant for making the fibers etc. less flammable, a paper strength enhancer for enhancing the paper strength of the sheet S, etc. Alternatively, these may be incorporated in the resin P1 in advance to form a composite, and then supplied from the resin supply unit 171.

[0051] Further, a blower 173 is installed in the middle of the pipe 172 downstream of the resin supply unit 171. The fragmented bodies M6 and the resin P1 are mixed by the action of a rotating part such as a blade of the blower 173. The blower 173 can generate an airflow toward the disintegrating unit 18. The airflow can agitate the fragmented bodies M6 and the resin P1 in the pipe 172. This allows the mixture M7 to flow into the disintegrating unit 18 in a state in which the fragmented bodies M6 and the resin P1 are uniformly dispersed. Furthermore, the fragmented bodies M6 in the mixture M7 are disintegrated in the process of passing through the pipe 172, becoming finer fibrous.

[0052] The disentanglement unit 18 is a unit that performs a disentanglement step of disentangling entangled fibers in the mixture M7. The disentanglement unit 18 has a drum unit 181 and a housing unit 182 that houses the drum unit 181.

[0053] The drum section 181 is a sieve that is composed of a cylindrical mesh body and rotates around its central axis. The mixture M7 flows into the drum section 181. As the drum section 181 rotates, fibers and the like of the mixture M7 that are smaller than the mesh openings can pass through the drum section 181. At that time, the mixture M7 is loosened.

[0054] The housing portion 182 is connected to the humidifier portion 234. The humidifier portion 234 is configured with an evaporative or ultrasonic humidifier. This allows humidified air to be supplied into the housing portion 182. The inside of the housing portion 182 can be humidified by this humidified air, and therefore, it is also possible to prevent the mixture M7 from adhering to the inner wall of the housing portion 182 due to electrostatic force.

[0055] Furthermore, the mixture M7 loosened by the drum section 181 falls while being dispersed in the air, and heads toward the second web forming section 19 located below the drum section 181. The second web forming section 19 is a section where a second web forming step is carried out to form a second web M8 from the mixture M7. The second web forming section 19 has a mesh belt 191, a tension roller 192, and a suction section 193.

[0056] The mesh belt 191 is an endless belt and is a deposition member on which the mixture M7 is deposited. The mesh belt 191 is wound around four tension rollers 192. The mixture M7 on the mesh belt 191 is transported downstream by the rotation of the tension rollers 192.

[0057] Moreover, most of the mixture M7 on the mesh belt 191 has a size equal to or larger than the mesh openings of the mesh belt 191. This prevents the mixture M7 from passing through the mesh belt 191, and therefore the mixture M7 can be accumulated on the mesh belt 191. Moreover, the mixture M7 is transported downstream together with the mesh belt 191 while being accumulated on the mesh belt 191, and is thus formed as a layered second web M8.

[0058] The suction unit 193 is a suction mechanism that sucks air from below the mesh belt 191. This allows the mixture M7 to be sucked onto the mesh belt 191, thereby facilitating the accumulation of the mixture M7 on the mesh belt 191.

[0059] A pipe 246 is connected to the suction unit 193. A blower 263 is installed midway through the pipe 246. By operating the blower 263, a suction force can be generated in the suction unit 193. The blower 263 is electrically connected to the control unit 28, and the operation thereof is controlled.

[0060] The refining unit 18 and second web forming unit 19 constitute the depositing unit 30 that deposits the defibrated material M3 produced in the defibrating unit 13.

[0061] In this embodiment, the mesh belt 191 has been described as an example of a deposition member, but the present invention is not limited to this, and the deposition member may be a belt without holes, a plate-like member, or the like.

[0062] A humidifying section 236 is disposed downstream of the refining section 18. The humidifying section 236 is configured with an ultrasonic humidifier similar to the humidifying section 235. This allows moisture to be supplied to the second web M8, and thus the moisture content of the second web M8 is adjusted. This adjustment makes it possible to suppress adhesion of the second web M8 to the mesh belt 191 due to electrostatic force. This allows the second web M8 to be easily peeled off from the mesh belt 191 at the position where the mesh belt 191 is folded back by the tension roller 192.

[0063] The total amount of moisture added from the humidifying units 231 to 236 is preferably, for example, 0.5 parts by mass to 20 parts by mass with respect to 100 parts by mass of the material before humidification.

[0064] A heating and pressing section 20 is disposed downstream of the second web forming section 19. The heating and pressing section 20 is a section that performs a heating and pressing step of forming a sheet S from the second web M8. The heating and pressing section 20 has a pressing section 201 and a heating section 202.

[0065] The pressurizing unit 201 has a pair of calender rollers 203, and can pressurize the second web M8 between the calender rollers 203 without heating it. This increases the density of the second web M8. Note that the degree of pressure at this time is preferably, for example, such that the resin P1 is not melted. Then, the second web M8 is transported toward the heating unit 202. Note that one of the pair of calender rollers 203 is a driven roller driven by the operation of a motor (not shown), and the other is a driven roller.

[0066] The heating section 202 has a pair of heating rollers 204, and can apply pressure to the second web M8 while heating it between the heating rollers 204. This heating and pressurization melts the resin P1 in the second web M8, and the fibers are bonded to each other via the molten resin P1. This forms a sheet S. Then, this sheet S is transported toward the cutting section 21. Note that one of the pair of heating rollers 204 is a driven roller driven by the operation of a motor (not shown), and the other is a driven roller.

[0067] The cutting unit 21 is disposed downstream of the heating and pressurizing unit 20. The cutting unit 21 is a portion that performs a cutting step of cutting the sheet S. The cutting unit 21 has a first cutting unit 211 and a second cutting unit 212.

[0068] The first cutting section 211 cuts the sheet S in a direction intersecting the conveying direction of the sheet S, particularly in a direction perpendicular to the conveying direction.

[0069] The second cutting section 212 is downstream of the first cutting section 211 and cuts the sheet S in a direction parallel to the conveying direction of the sheet S. This cutting is performed to remove unnecessary excess portions from both side edges of the sheet S, i.e., the edges in the +y-axis direction and the -y-axis direction, to adjust the width of the sheet S. The excess portions cut and removed are so-called "selvages."

[0070] Each of the components of the fibrous body forming apparatus 100 described above is electrically connected to the control unit 28. The operation of each of these components is controlled by the control unit 28.

[0071] The control unit 28 has a CPU (Central Processing Unit) 281 and a storage unit 282. The CPU 281 can perform, for example, various kinds of decisions and various kinds of commands.

[0072] The storage unit 282 stores various programs, such as a program for manufacturing the sheet S. The storage unit 282 also stores an operation program for a first mode and an operation program for a second mode, which are selectively read out and executed by the CPU 281.

[0073] The control unit 28 may be built in the fibrous body forming apparatus 100, or may be provided in an external device such as an external computer. The connection between the external device and the fibrous body forming apparatus 100 may be wired or wireless, or may be via a network such as the Internet.

[0074] Furthermore, the CPU 281 and the memory unit 282 may, for example, be integrated and configured as a single unit, or the CPU 281 may be built into the fibrous body forming apparatus 100 and the memory unit 282 may be provided in an external device such as an external computer, or the memory unit 282 may be built into the fibrous body forming apparatus 100 and the CPU 281 may be provided in an external device such as an external computer.

[0075] Next, the positional relationship of each part of the fibrous body forming apparatus 100 will be described with reference to Fig. 2. As shown in Fig. 2, each part of the fibrous body forming apparatus 100 described above is housed in a casing 50. Note that Fig. 2 shows only the main parts of the fibrous body forming apparatus 100, and the other parts are omitted.

[0076] The raw material supply section 11 is disposed at a position offset toward the -x-axis side of the +y-side sidewall of the casing 50. The discharge section 22 is disposed at a position offset toward the +y-axis side of the -x-axis side of the sidewall. The raw material M1 discharged from the raw material supply section 11 enters the casing 50 from the +y-axis side and is supplied to the coarse crushing section 12. The coarsely crushed pieces M2 generated in the coarse crushing section 12 are sent to the -y-axis side and defibrated in the defibrating section 13. The defibrated material M3 generated in the defibrating section 13 is sent to the -y-axis side and is piled up in the sorting section 14 and the first web forming section 15 to become the first web M5. The first web M5 is sent to the +x-axis side and supplied to the fragmenting section 16 to become the fragmented body M6. The fragmented body M6 is sent to the +x-axis side and becomes the mixture M7 in the mixing section 17. The mixture M7 is sent to a refining section 18 on the +y-axis side and a second web forming section 19, where a second web M8 is produced. The second web M8 is sent to the -x-axis side and formed into a sheet S in a heating and pressurizing section 20. The sheet S is further sent to the -x-axis side and cut into individual sheets S in a cutting section 21, which are then sent to the -x-axis side and discharged from the casing 50. The discharged sheets S are stocked in a discharge section 22.

[0077] Thus, inside the casing 50, the raw material M1 flows toward the +x-axis side, is turned back at a position on the +x-axis side inside the casing 50, and flows toward the -x-axis side. That is, because the transport path of the raw material M1 is turned back midway, the overall length of the fibrous body forming apparatus 100, i.e., the length in the x-axis direction, can be shortened. Therefore, even indoors where space is limited, the number of places where the fibrous body forming apparatus 100 can be installed increases, making it easier to install the fibrous body forming apparatus 100 in various locations.

[0078] The accumulation unit 30 is provided at a position immediately after the path turns back, that is, at a position offset toward the +y-axis side and the +x-axis side within the casing 50. In other words, the accumulation unit 30 is provided near the side wall 50A of the casing 50 on the +x-axis side.

[0079] In this way, the sheet substrate supplying unit 3 inputs the sheet substrate S1 into the path along which the raw material M1 is transported, just before the deposition unit 30. This allows the second web M8 to be formed on the sheet substrate S1 immediately after the sheet substrate supplying unit 3 inputs the sheet substrate S1. This makes it possible to reduce the size of the device without creating an unnecessary path for the sheet substrate S1 within the device.

[0080] A sheet base material supply unit 3 is provided on the +x-axis side of a side wall 50A on the +x-axis side of the casing 50. The sheet base material supply unit 3 has a function of supplying the sheet base material S1 in the second mode.

[0081] 5, the sheet substrate supply unit 3 has a housing 301 installed on the surface of the side wall 50A on the +x-axis side, a loading unit 302 provided in the housing 301 and into which a roll of sheet substrate S1 is loaded, and a detection unit 303 that detects the sheet substrate S1. The roll of sheet substrate S1 is a long sheet substrate S1 wound into a roll, and its center is hollow.

[0082] The housing 301 has a supply port 304 that communicates with the inlet 500 provided in the side wall 50A and supplies the sheet substrate S1. The housing 301 also has an opening (not shown) through which the original roll of the sheet substrate S1 can be loaded or removed.

[0083] In the illustrated configuration, the loading unit 302 is configured with a rod-shaped member that passes through the center of the original roll of sheet base material S1. However, the loading unit 302 is not limited to this configuration, and may be configured, for example, to simply support the original roll of sheet base material S1 from below, or may be configured with two rod-shaped members that pass through the center of the original roll of sheet base material S1 from both sides.

[0084] In addition, the rod-shaped member may be configured to rotate by driving a motor not shown in the figure to unwind the sheet base material S1, or the rod-shaped member may not rotate, and the sheet base material S1 may be unwound by being clamped and pulled by each roller of the heating and pressurizing section 20 shown in Figure 1.

[0085] In this way, the sheet base material S1 is wound in a roll, and in the second mode, the sheet base material supply unit 3 unwinds and supplies the rolled sheet base material S1. This allows the sheet base material S1 to be stored in a small storage space, and also allows a larger amount of sheet base material S1 to be unwound. This contributes to space saving and reduces the frequency of replenishing the sheet base material S1.

[0086] As shown in FIG. 7, the sheet substrate S1 has a substrate layer 200 and a functional material 300 provided on one surface side of the substrate layer 200.

[0087] The base layer 200 is, for example, a nonwoven fabric. The nonwoven fabric constituting the base layer 200 is preferably composed of fibers having the same molecular structure as the fibers released from the refining unit 18. Examples of fibers contained in the sheet base material S1 include cellulose fibers, rayon, cotton, linter, kaboku, flax, hemp, ramie, etc., and one or more of these can be used in combination. It is preferable to use cellulose fibers as the fibers contained in the base layer 200. Cellulose fibers are easy to obtain and have excellent moldability. Cellulose fibers derived from wood-based pulp are preferable. Examples of wood-based pulp include virgin pulp, kraft pulp, bleached chemi-thermomechanical pulp, synthetic pulp, and pulp derived from waste paper or recycled paper, and one or more of these can be used in combination.

[0088] The base layer 200 is also breathable. "Breathable" refers to the property of allowing air to pass through a plurality of pores. In the Gurley tester, the base layer 200 preferably has a Gurley second, which indicates air permeability, of less than 30 seconds, more preferably less than 15 seconds. This allows the mixture M7 to be well sucked through the sheet base S1 when the suction section 193 sucks in the second mode. This allows a good second web M8 to be formed on the sheet base S1.

[0089] The thickness of the base layer 200 is not particularly limited, and is, for example, preferably 50 μm or more and 200 μm or less, and more preferably 90 μm or more and 150 μm or less.

[0090] For example, a magnetic material can be used as the functional material 300. As a result, the sheet S manufactured in the second mode can be used as security paper. The security paper is paper that can be detected by a detection system including an excitation coil and a detection coil. When an alternating current is passed through the excitation coil to generate an alternating magnetic field of several kHz and the sheet S is placed in the alternating magnetic field, the presence of the sheet S can be detected when the magnetization is reversed. Therefore, by placing an excitation coil and a detection coil at a gate through which people and vehicles can pass, the sheet S passing through the gate can be detected. Therefore, the removal of the sheet S can be detected. For example, when confidential information is printed on the sheet S, the leakage of the confidential information can be prevented.

[0091] In addition, the functional material 300 preferably has a large Barkhausen effect. Specifically, the material of the functional material 300 is an FeCr-based, FeCo-based, FeNi-based, FeSiB-based, or FeCoCrSiB-based alloy. These materials can be preferably used because they exhibit the large Barkhausen effect without applying strain through post-processing. The large Barkhausen effect may be imparted by applying strain through post-processing. In addition, the functional material 300 may be a wire obtained by cutting an amorphous ribbon, or a glass-coated wire obtained by drawing the metal together with glass from a molten state and cooling it.

[0092] The functional material 300 preferably has a vertically long linear shape such as a wire or ribbon. By having a predetermined length relative to the cross-sectional area, it is possible to easily realize the large Barkhausen effect.

[0093] The functional material 300 does not have to be a magnetic material. For example, the functional material 300 may be a metal wire that can be detected by a metal detector, an RF (Radio Frequency) tag that can be detected by an RFID (Radio Frequency Identification) reader, or an IC (Integrated Circuit) chip.

[0094] In this way, the sheet base material S1 has a base material layer 200 that contains fibers and has air permeability, and a functional material 300 supported on the base material layer 200. This allows the sheet S to be manufactured with a desired function. Furthermore, by having air permeability, when the suction unit 193 performs suction in the second mode, the mixture M7 can be favorably sucked through the sheet base material S1. Therefore, a favorable second web M8 can be formed on the sheet base material S1.

[0095] Moreover, the functional material 300 is bonded to the surface, i.e., one side, of the base layer 200. However, this is not limited to the configuration, and the functional material 300 may be embedded in the base layer 200.

[0096] The original sheet substrate S1 is wound so that the functional material 300 is located on the inside. The sheet substrate supplying unit 3 supplies the sheet substrate S1 in an orientation such that the functional material 300 is located on the refining unit 18 side. That is, the depositing unit 30 deposits the mixture M7, which is a material, so as to cover the functional material 300 exposed on the surface of the sheet substrate S1. As a result, the second web M8 functions as a concealing layer that conceals the functional material 300 after forming.

[0097] The detection unit 303 detects whether or not a roll of the sheet substrate S1 is loaded in the loading unit 302. The detection method of the detection unit 303 is not particularly limited, and examples thereof include a reflective or transmissive optical type, a pressure-sensitive type that detects weight, a capacitance type, a magnetic type, and a type that detects electrical current.

[0098] The detector 303 is electrically connected to the controller 28 , and the detection result obtained by the detector 303 is transmitted to the controller 28 .

[0099] Here, the fibrous body forming apparatus 100 can selectively execute a first mode and a second mode. In the first mode, as shown in FIG. 3, a second web M8 is formed in the deposition section 30, and the second web M8 is formed into a sheet S. In the second mode, as shown in FIG. 4, the second web M8 is deposited on the sheet substrate S1 in the deposition section 30, and the laminate is formed into a sheet S. The sheet S produced in the first mode is a recycled raw material M1, and can be used again for applications such as printing paper. On the other hand, the sheet S produced in the second mode has the functional material 300 as described above, and can be used to obtain a sheet S carrying a desired function, such as a security sheet. In this way, the fibrous body forming apparatus 100 has the advantages of both an apparatus dedicated to the first mode and an apparatus dedicated to the second mode. Therefore, it is highly convenient.

[0100] Further, the sheet substrate supply unit 3 includes a loading unit 302 in which the sheet substrate S1 is loaded, and a detection unit 303 that detects whether the sheet substrate S1 is loaded in the loading unit 302, and the control unit 28 selects the first mode or the second mode according to the detection result of the detection unit 303. This makes it possible to appropriately select and execute the first mode or the second mode based on the presence or absence of the sheet substrate S1 in the sheet substrate supply unit 3.

[0101] In the present embodiment, the control unit 28 selects the second mode when the detection unit 303 detects that the sheet substrate S1 has been loaded into the loading unit 302, and selects the first mode when the detection unit 303 does not detect that the sheet substrate S1 has been loaded into the loading unit 302. This allows the operator to select and execute the first mode or the second mode in consideration of the operator's intention of whether or not to load the sheet substrate S1 into the loading unit 302.

[0102] As described above, the fibrous body forming apparatus 100 of the present invention includes the deposition unit 30 having the loosening unit 18, which is a discharge unit that discharges the mixture M7, which is a material containing fibers, and the mesh belt 191, which is a deposition member that deposits the mixture M7, which is a material discharged from the loosening unit 18, the sheet base material supply unit 3 that supplies the sheet base material S1 vertically below the loosening unit 18, and the control unit 28 that controls the operation of the deposition unit 30 and the sheet base material supply unit 3. The control unit 28 controls the operation of the deposition unit 30 and the sheet base material supply unit 3 to selectively execute a first mode in which the mixture M7 is deposited on the mesh belt 191, and a second mode in which the sheet base material S1 is supplied vertically below the loosening unit 18 and the mixture M7 is deposited on the sheet base material S1. With this configuration, the fibrous body forming apparatus 100 has the advantages of both a device dedicated to the first mode and a device dedicated to the second mode. Therefore, the convenience is excellent because these modes can be selected.

[0103] In the second mode, the sheet base material supplying unit 3 supplies the sheet base material S1 onto the mesh belt 191, which is a depositing member. This makes it possible to stably supply the second web M8 while supporting the sheet base material S1. This makes it possible to improve the quality of the sheet S.

[0104] In the second mode, the mesh belt 191 may be retracted, and the second web M8 may be supplied onto the sheet substrate S1 being transported in the air.

[0105] The deposition member is a mesh belt 191, and the deposition unit 30 is provided on the surface of the mesh belt 191 opposite to the surface on which the material mixture M7 is deposited, and has a suction unit 193 that sucks the mixture M7 or the second web M8 through the mesh belt 191. This makes it possible to satisfactorily form the second web M8 in the first mode and the second mode.

[0106] Next, an example of a method for controlling the fibrous body forming apparatus of the present invention will be described with reference to the flow chart shown in FIG.

[0107] First, in step S101, it is determined whether or not the sheet substrate S1 is loaded. The determination in this step is made based on the detection result of the detection unit 303. If it is determined in step S101 that the sheet substrate S1 is not loaded, the first mode is selected in step S102.

[0108] Next, in step S103, the suction force of the suction unit 193 is determined. Specifically, the energization condition for the blower 263 is set to the energization condition for the first mode stored in the storage unit 282 in advance.

[0109] Next, in step S104, the process is executed under the conditions set in steps S102 and S103.

[0110] On the other hand, if it is determined in step S101 that the sheet substrate S1 is loaded, the second mode is selected in step S105.

[0111] Next, in step S106, the suction force of the suction unit 193 is determined. Specifically, the energization conditions for the blower 263 are set to the energization conditions for the second mode previously stored in the storage unit 282. In this step, the suction force is set so that the suction force in the second mode is higher than the suction force in the first mode. This allows suction to be performed while taking into consideration the fact that the suction force for the mixture M7 being dispersed is reduced due to the presence of the sheet substrate S1. Therefore, despite the presence of the sheet substrate S1 in the second mode, good suction can be performed, and the quality of the obtained sheet S can be improved.

[0112] Although changing the energization conditions for blower 263 has been described as an example of a means for adjusting the suction force of suction unit 193, the present invention is not limited to this. For example, a configuration may be adopted in which the distance between suction unit 193 and mesh belt 191 is adjusted, or the opening diameter of the suction port of suction unit 193 is narrowed or widened.

[0113] Next, in step S107, the process is executed under the conditions set in steps S105 and S106.

[0114] Next, in step S108, it is determined whether or not the process is completed. The determination in this step is made based on, for example, whether or not the number of produced sheets S has reached a predetermined number, whether or not the amount of supplied raw material M1 has reached a predetermined number, etc.

[0115] As described above, the control method of the fibrous body forming apparatus of the present invention is a control method of the fibrous body forming apparatus 100 including the deposition section 30 having the loosening section 18 which is a discharge section that discharges the mixture M7 which is a material containing fibers, the mesh belt 191 which is a deposition member that deposits the mixture M7 which is a material discharged from the loosening section 18, and the sheet base material supply section 3 which supplies the sheet base material S1 vertically below the loosening section 18, and controls the operation of the deposition section 30 and the sheet base material supply section 3 to selectively execute a first mode in which the mixture M7 is deposited on the mesh belt 191, and a second mode in which the sheet base material S1 is supplied vertically below the loosening section 18 and the mixture M7 is deposited on the sheet base material S1. According to this configuration, the fibrous body forming apparatus 100 has the advantages of both a device dedicated to the first mode and a device dedicated to the second mode. Therefore, the convenience is excellent because these modes can be selected.

[0116] <Second embodiment> Fig. 9 is a flow chart for explaining an example of a control operation executed by a control unit included in the second embodiment of the fibrous body forming apparatus of the present invention. Fig. 10 and Fig. 11 are diagrams showing an example of a display screen displayed by the second embodiment of the fibrous body forming apparatus of the present invention.

[0117] Below, we will explain the second embodiment of the fibrous body forming apparatus and the control method for the fibrous body forming apparatus of the present invention with reference to these figures, but we will mainly explain the differences from the first embodiment described above, and omit explanations of similar points.

[0118] This embodiment is similar to the first embodiment, except that the control operation of the control unit is different. In this embodiment, the control unit 28 executes steps S201 to S208. Step S201 is similar to step S101 described in the embodiment, step S203 is similar to step S103 described in the embodiment, step S204 is similar to step S104 described in the embodiment, step S206 is similar to step S106 described in the embodiment, step S207 is similar to step S107 described in the embodiment, and step S208 is similar to step S108 described in the embodiment.

[0119] In this embodiment, in step S202, the control unit 28 displays a selection screen 500A shown in Fig. 10 on the input operation unit (not shown). In addition, in step S205, the control unit 28 displays a selection screen 500B shown in Fig. 11 on the input operation unit (not shown).

[0120] The selection screen 500A displays a first mode selection button 501 for selecting the first mode and a second mode selection button 502 for selecting the second mode. On the selection screen 500A, only the first mode selection button 501 is enabled, and the second mode selection button 502 is disabled. This makes it inevitable that the first mode will be selected when the sheet substrate S1 is not loaded. The display of the second mode selection button 502 may be omitted.

[0121] The selection screen 500B displays a first mode selection button 501 for selecting the first mode and a second mode selection button 502 for selecting the second mode. Both the first mode selection button 501 and the second mode selection button 502 are enabled on the selection screen 500B. This allows the operator to select both the first mode and the second mode even if the sheet base material S1 is loaded.

[0122] The input operation unit is configured, for example, with a touch panel monitor, and is installed at an arbitrary position on the outside of the casing 50 shown in FIG.

[0123] Although the fibrous body forming apparatus and the control method for the fibrous body forming apparatus of the present invention have been described above with reference to the illustrated embodiments, the present invention is not limited thereto, and each part and step constituting the fibrous body forming apparatus and the control method for the fibrous body forming apparatus can be replaced with any configuration or step that can exert a similar function. In addition, any configuration or step may be added. [Explanation of symbols]

[0124] 3...sheet substrate supply section, 11...raw material supply section, 12...crushing section, 13...defibrating section, 14...screening section, 15...first web forming section, 16...fragmenting section, 17...mixing section, 18...loosening section, 19...second web forming section, 20...heating and pressurizing section, 21...cutting section, 22...discharging section, 23...second crushing section, 27...recovery section, 28...control section, 30...accumulation section, 50...casing, 50A...side wall, 100...fibrous body forming device, 121...crushing blade, 122...shoe 141... drum section, 142... housing section, 151... mesh belt, 152... tension roller, 153... suction section, 161... propeller, 162... housing section, 171... resin supply section, 172... pipe, 173... blower, 174... screw feeder, 181... drum section, 182... housing section, 191... mesh belt, 192... tension roller, 193... suction section, 200... base layer, 201... pressure section, 202... Heating unit, 203...calender roller, 204...heating roller, 211...first cutting unit, 212...second cutting unit, 231...humidifying unit, 232...humidifying unit, 233...humidifying unit, 234...humidifying unit, 235...humidifying unit, 236...humidifying unit, 241...tube, 242...tube, 243...tube, 244...tube, 245...tube, 246...tube, 261...blower, 262...blower, 263...blower, 281...CPU, 282...storage unit, 300...functional material , 301...housing, 302...loading section, 303...detection section, 304...supply port, 500...inlet, 500A...selection screen, 500B...selection screen, 501...first mode selection button, 502...second mode selection button, M1...raw material, M2...coarsely crushed pieces, M3...defibrated material, M4-1...first sorted material, M4-2...second sorted material, M5...first web, M6...fine body, M7...mixture, M8...second web, S...sheet, S1...sheet base material, P1...resin

Claims

1. A deposition unit including an ejection unit that ejects a material including fibers and a deposition member that deposits the material ejected from the ejection unit; A sheet substrate supply section that supplies the sheet substrate vertically below the discharge section; A control unit that controls the operation of the depositing unit and the sheet base material supply unit, The control unit controls the operation of the deposition unit and the sheet substrate supply unit to selectively execute a first mode in which the material is deposited on the deposition member, and a second mode in which the sheet substrate is supplied vertically below the discharge unit and the material is deposited on the sheet substrate; the sheet base material supply unit includes a loading unit into which the sheet base material is loaded, and a detection unit that detects whether the sheet base material is loaded in the loading unit, The fibrous body forming device, characterized in that the control unit selects the first mode and the second mode depending on the detection result of the detection unit.

2. The fibrous body forming device of claim 1, wherein the control unit selects the second mode when the detection unit detects that the sheet substrate is loaded into the loading unit, and selects the first mode when the detection unit does not detect that the sheet substrate is loaded into the loading unit.

3. The fibrous body forming device according to claim 1 or 2, wherein in the second mode, the sheet substrate supply unit supplies the sheet substrate onto the deposition member.

4. A deposition unit including an ejection unit that ejects a material including fibers and a deposition member that deposits the material ejected from the ejection unit; A sheet substrate supply section that supplies the sheet substrate vertically below the discharge section; A control unit that controls the operation of the depositing unit and the sheet base material supply unit, The control unit controls the operation of the deposition unit and the sheet substrate supply unit to selectively execute a first mode in which the material is deposited on the deposition member, and a second mode in which the sheet substrate is supplied vertically below the discharge unit and the material is deposited on the sheet substrate; The sheet base material is wound, In the second mode, the sheet base material supply unit unwinds and supplies the sheet base material in a roll shape.

5. The deposition member is a mesh belt, The fibrous body forming device according to any one of claims 1 to 4, wherein the deposition section is provided on the side of the mesh belt opposite to the side on which the material is deposited, and has a suction section that sucks the material through the mesh belt.

6. The fibrous body forming apparatus according to claim 1 , wherein the sheet substrate supply unit supplies the sheet substrate immediately before the deposition unit in a path along which the material is transported.

7. The fibrous body forming device according to claim 1 , wherein the sheet substrate comprises a substrate layer containing fibers and having air permeability, and a functional material supported on the substrate layer.

8. The fibrous body forming device according to claim 7 , wherein the depositing section deposits the material so as to cover the functional material exposed on the surface of the sheet base material.

9. A deposition unit including an ejection unit that ejects a material including fibers and a deposition member that deposits the material ejected from the ejection unit; A method for controlling a fibrous material deposition device comprising: a sheet substrate supply unit that supplies a sheet substrate vertically below the discharge unit, controlling the operation of the deposition unit and the sheet substrate supply unit to selectively execute a first mode in which the material is deposited on the deposition member, and a second mode in which the sheet substrate is supplied vertically below the discharge unit and the material is deposited on the sheet substrate; the sheet base material supply unit includes a loading unit into which the sheet base material is loaded, and a detection unit that detects whether the sheet base material is loaded in the loading unit, A method for controlling a fibrous body forming device, comprising selecting the first mode or the second mode depending on a detection result of the detection unit.

10. A deposition unit including an ejection unit that ejects a material including fibers and a deposition member that deposits the material ejected from the ejection unit; A method for controlling a fibrous material deposition device comprising: a sheet substrate supply unit that supplies a sheet substrate vertically below the discharge unit, controlling the operation of the deposition unit and the sheet substrate supply unit to selectively execute a first mode in which the material is deposited on the deposition member, and a second mode in which the sheet substrate is supplied vertically below the discharge unit and the material is deposited on the sheet substrate; The sheet base material is wound, A method for controlling a fibrous body forming device, characterized in that in the second mode, the operation of the sheet substrate supply unit is controlled so that the sheet substrate supply unit unwinds and supplies the roll-shaped sheet substrate.

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