JPWO2017170674A1 - Raw material supply apparatus, raw material supply method of raw material supply apparatus, sheet manufacturing apparatus - Google Patents

Abstract

Reduces frequent occurrence of state transitions between the operating state and the dormant state, and supplies the raw material stably.
The raw material supply device is a supply unit for supplying a raw material, the supply unit including a first supply unit and a second supply unit, a detection unit for detecting an abnormal state of the supply unit, and the supply A control unit for controlling the first supply unit, when the control unit determines that the first supply unit is in an abnormal state based on a detection result by the detection unit. The function of shifting from the operating state to the dormant state and shifting the second supply unit from the standby state to the operating state to supply the raw material, and whether the first supply unit in the dormant state has returned to the normal state A function of shifting the first supply unit to a standby state when it is determined whether or not it has returned to a normal state.

Description

  The present invention relates to a raw material supply apparatus, a raw material supply method for a raw material supply apparatus, and a sheet manufacturing apparatus.

  Conventionally, there is a known waste paper processing apparatus that includes a plurality of raw material storage units that supply recycled raw materials, and switches to another raw material storage unit and continues operation when one raw material storage unit becomes unable to supply ( For example, see Patent Document 1).

JP 2011-157657 A

  However, in the above apparatus, when the cause of the inability to supply the first raw material storage unit, which has become incapable of supply, is resolved and switching from the other raw material storage unit to the first raw material storage unit is performed again, the cause of the supply failure is detected. If the detection unit is in an unstable state such as repeated false detections, switching of the raw material storage unit frequently occurs, the raw material cannot be stably supplied, and the production amount is reduced. there were.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A raw material supply apparatus according to this application example is a supply unit for supplying a raw material, and includes a supply unit including a first supply unit and a second supply unit, and an abnormal state of the supply unit. A detection unit for detecting, and a control unit for controlling the supply unit, the control unit, when it is detected by the detection unit that the first supply unit is in an abnormal state, The first supply unit is shifted from the operating state to the dormant state, the second supply unit is shifted from the standby state to the operating state and the raw material is supplied, and the first supply unit in the dormant state is It is characterized by having a function of determining whether or not the state has returned to a normal state and shifting the first supply unit to a standby state when it is determined that the state has returned to a normal state.

  According to this configuration, after confirming that the first supply unit in the dormant state has returned to the normal state, the first supply unit is shifted to the standby state. For this reason, the frequent occurrence of the state transition between the operation state of the supply unit and the dormant state caused by the abnormality of the detection unit is reduced, and the raw material can be stably supplied.

  Application Example 2 The control unit of the raw material supply apparatus according to the application example performs a preliminary operation on the first supply unit when the detection unit detects that the first supply unit is in a normal state. And determining whether or not the first supply unit has returned to a normal state.

  According to this configuration, it is possible to more surely confirm that the device is in the normal state by performing the preliminary operation without depending on only the detection unit.

  [Application Example 3] The control unit of the raw material supply apparatus according to the application example described above, when the normal state of the first supply unit in the dormant state is detected continuously for a predetermined time by the detection unit, The first supply unit is determined to have returned to a normal state.

  According to this configuration, it is possible to reduce the frequent occurrence of the state transition of the supply unit due to the abnormality of the detection unit by determining that the state has returned to the normal state when the normal state continues for a predetermined time. .

  [Application Example 4] The control unit of the raw material supply apparatus according to the application example described above is after the normal state of the first supply unit in the dormant state is continuously detected by the detection unit for a predetermined time. When the predetermined input is received, it is determined that the first supply unit has returned to a normal state.

  According to this configuration, when the normal state continues for a predetermined period of time and when a predetermined input is received, it is determined that the normal state has returned to the normal state due to the abnormality of the detection unit. Can be reduced.

  Application Example 5 After the control unit of the raw material supply apparatus according to the application example receives a predetermined input, the normal state of the first supply unit in the dormant state continues for a predetermined time by the detection unit. When the first supply unit is detected, it is determined that the first supply unit has returned to a normal state.

  According to this configuration, even if there is a predetermined input (for example, an error cancellation input by the user), the first supply unit is not determined to have returned to the normal state unless it is in a normal state for a predetermined time. For this reason, the state transition of a supply part resulting from a user's misoperation or abnormality of a detection part can be prevented.

  Application Example 6 The control unit of the material supply apparatus according to the application example switches from the second supply unit to the first supply unit when the first supply unit shifts from the pause state to the standby state. The raw material is supplied.

  According to this configuration, it is possible to preferentially use the first supply unit as the main supply unit in the usage state of the first supply unit and the second supply unit.

  Application Example 7 The raw material supply apparatus according to the application example includes a notification unit that notifies the status of the supply unit.

  According to this configuration, the user can easily grasp the status of the supply unit. Therefore, for example, quick maintenance or the like can be performed on the supply unit in an abnormal state.

  Application Example 8 The supply unit of the raw material supply apparatus according to the application example includes at least three supply units, and the control unit is configured from a supply unit having a high priority among supply units in a standby state. The raw material is supplied.

  According to this structure, since it operates with three or more supply parts, a raw material can be supplied more stably. In addition, any of the three or more supply units in use can be preferentially usable as the main supply unit.

  [Application Example 9] A raw material feeding method of a raw material supply apparatus according to this application example is a supply unit for supplying a raw material, and includes a supply unit including a first supply unit and a second supply unit A raw material supply method for a supply apparatus, the step of detecting an abnormal state of the supply unit, and when the first supply unit is detected to be in an abnormal state, the first supply unit is changed from an operating state to a dormant state. And the step of shifting the second supply unit from the standby state to the operating state to supply the raw material, and determining whether the first supply unit in the dormant state has returned to the normal state. And a step of shifting the first supply unit to a standby state when it is determined that the normal state has been restored.

  According to this configuration, after confirming that the first supply unit in the dormant state has returned to the normal state, the first supply unit is shifted to the standby state. For this reason, the frequent occurrence of the state transition between the operation state of the supply unit and the dormant state caused by the abnormality of the detection unit is reduced, and the raw material can be stably supplied.

  Application Example 10 A sheet manufacturing apparatus according to this application example includes the raw material supply apparatus described above.

  According to this configuration, the raw material is stably supplied from the raw material supply device, and the sheet can be manufactured efficiently.

Schematic which shows the structure of the sheet manufacturing apparatus concerning 1st Embodiment. Schematic which shows the structure of the raw material supply apparatus concerning 1st Embodiment. The control block diagram which shows the structure of the control part of the raw material supply apparatus concerning 1st Embodiment. The state transition diagram of the raw material supply apparatus concerning 1st Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 1st Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 1st Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 1st Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 1st Embodiment. The flowchart which shows the transfer process from the idle state of the raw material supply apparatus concerning 1st Embodiment to a standby state. The flowchart which shows the transfer process from the idle state of the raw material supply apparatus concerning 2nd Embodiment to a standby state. The flowchart which shows the transfer process from the idle state of the raw material supply apparatus concerning 3rd Embodiment to a standby state. The flowchart which shows the transfer process from the idle state of the raw material supply apparatus concerning 4th Embodiment to a standby state. The flowchart which shows the transfer process from the idle state of the raw material supply apparatus concerning 5th Embodiment to a standby state. The state transition diagram of the raw material supply apparatus concerning 6th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 6th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 6th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 6th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 6th Embodiment. The state transition diagram of the raw material supply apparatus concerning 7th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 7th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 7th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 7th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 7th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 7th Embodiment. Explanatory drawing which shows the example of a display in the input / output part concerning 7th Embodiment.

  Hereinafter, first to seventh embodiments of the present invention will be described with reference to the drawings. In the following drawings, the scale of each member or the like is shown differently from the actual scale so as to make each member or the like recognizable.

(First embodiment)
First, a sheet manufacturing apparatus will be described with reference to the drawings. FIG. 1 is a schematic diagram illustrating a configuration of a sheet manufacturing apparatus according to the present embodiment.

  As shown in FIG. 1, the sheet manufacturing apparatus 100 includes a raw material supply apparatus 10, a manufacturing unit 102, and a control unit 104. The manufacturing unit 102 manufactures a sheet. The manufacturing unit 102 includes a crushing unit 12, a defibrating unit 20, a sorting unit 40, a first web forming unit 45, a rotating body 49, a mixing unit 50, a depositing unit 60, and a second web forming unit. 70, a sheet forming unit 80, and a cutting unit 90.

  The raw material supply apparatus 10 has a supply unit 200 for supplying raw materials. The raw material supplied by the raw material supply apparatus 10 contains fiber structures, such as a used paper and a pulp sheet, for example. In this embodiment, the raw material supply apparatus 10 supplies a raw material to the crushing part 12, and is equipped with the structure which can supply a raw material continuously. Details of the raw material supply apparatus 10 will be described later. The raw material supply device may supply a piece of paper roughly crushed by the crushing unit as a raw material.

  The crushing unit 12 cuts the raw material supplied by the raw material supply device 10 in the air (in the air) or the like into pieces. The shape and size of the strip is, for example, a strip of several cm square. In the illustrated example, the crushing unit 12 has a crushing blade 14, and the charged raw material can be cut by the crushing blade 14. As the crushing part 12, a shredder is used, for example. The raw material cut by the crushing unit 12 is received by the hopper 1 and then transferred (conveyed) to the defibrating unit 20 through the pipe 2.

  The defibrating unit 20 defibrates the raw material cut by the crushing unit 12. Here, “defibration” means unraveling a raw material (a material to be defibrated) formed by binding a plurality of fibers into individual fibers. The defibrating unit 20 also has a function of separating substances such as resin particles, ink, toner, and a bleeding inhibitor adhering to the raw material from the fibers.

  What has passed through the defibrating unit 20 is referred to as “defibrated material”. In addition to the defibrated fibers that have been unraveled, the “defibrated material” includes resin particles (resins that bind multiple fibers together), ink, toner, etc. In some cases, additives such as colorants, anti-bleeding materials, and paper strength enhancing agents are included. The shape of the defibrated material that has been unraveled is a string shape or a ribbon shape. The unraveled defibrated material may exist in an unentangled state (independent state) with other undisentangled fibers, or entangled with other undisentangled defibrated material to form a lump. It may exist in a state (a state forming a so-called “dama”).

  The defibrating unit 20 performs defibration by a dry method. Here, performing a process such as defibration in the air (in the air), not in the liquid, is called dry. As the defibrating unit 20, an impeller mill is used in the present embodiment. The defibrating unit 20 has a function of generating an air flow that sucks the raw material and discharges the defibrated material. Thereby, the defibrating unit 20 can suck the raw material together with the airflow from the introduction port 22 by the airflow generated by itself, defibrate it, and transport it to the discharge port 24. The defibrated material that has passed through the defibrating unit 20 is transferred to the sorting unit 40 via the tube 3.

  The sorting unit 40 introduces the defibrated material defibrated by the defibrating unit 20 from the introduction port 42 and sorts the defibrated material according to the length of the fiber. As the selection unit 40, for example, a sieve is used. The sorting unit 40 has a net (filter, screen), fibers or particles smaller than the mesh size of the mesh (things that pass through the mesh, the first selection product), fibers larger than the mesh size of the mesh, Undefibrated pieces and lumps (those that do not pass through the net, second sort) can be separated. For example, the first selection is transferred to the mixing unit 50 via the pipe 7. The second selected item is returned to the defibrating unit 20 from the discharge port 44 through the pipe 8. Specifically, the sorting unit 40 is a cylindrical sieve that is rotationally driven by a motor. As the net of the sorting unit 40, for example, a metal net, an expanded metal obtained by extending a cut metal plate, or a punching metal in which a hole is formed in the metal plate by a press machine or the like is used.

  The first web forming unit 45 conveys the first sorted product that has passed through the sorting unit 40 to the mixing unit 50. The first web forming unit 45 includes a mesh belt 46, a stretching roller 47, and a suction unit (suction mechanism) 48.

  The suction unit 48 can suck the first selection product that has passed through the opening (opening of the mesh) of the selection unit 40 and dispersed in the atmosphere (in the air) or the like onto the mesh belt 46. The first selection is deposited on the moving mesh belt 46 to form the web V. The basic configurations of the mesh belt 46, the stretching roller 47, and the suction unit 48 are the same as the mesh belt 72, the stretching roller 74, and the suction mechanism 76 of the second web forming unit 70 described later.

  The web V is formed in a soft and swelled state containing a lot of air by passing through the sorting unit 40 and the first web forming unit 45. The web V deposited on the mesh belt 46 is put into the tube 7 and conveyed to the mixing unit 50.

  The rotating body 49 can cut the web V before the web V is conveyed to the mixing unit 50. In the illustrated example, the rotator 49 has a base 49a and a protrusion 49b protruding from the base 49a. The protrusion 49b has, for example, a plate shape. In the illustrated example, four protrusions 49b are provided, and four protrusions 49b are provided at equal intervals. When the base 49a rotates in the direction R, the protrusion 49b can rotate around the base 49a. By cutting the web V by the rotating body 49, for example, the fluctuation in the amount of defibrated material per unit time supplied to the deposition unit 60 can be reduced.

  The rotating body 49 is provided in the vicinity of the first web forming portion 45. In the illustrated example, the rotating body 49 is provided in the vicinity of the stretching roller 47a located on the downstream side in the path of the web V (next to the stretching roller 47a). The rotating body 49 is provided at a position where the protrusion 49b can come into contact with the web V and not in contact with the mesh belt 46 on which the web V is deposited. Thereby, it is possible to suppress the mesh belt 46 from being worn (damaged) by the protrusion 49b. The shortest distance between the protrusion 49b and the mesh belt 46 is, for example, not less than 0.05 mm and not more than 0.5 mm.

  The mixing unit 50 mixes the first sorted product that has passed through the sorting unit 40 (the first sorted product conveyed by the first web forming unit 45) and the additive containing resin. The mixing unit 50 includes an additive supply unit 52 that supplies the additive, a pipe 54 that conveys the first selected product and the additive, and a blower 56. In the illustrated example, the additive is supplied from the additive supply unit 52 to the pipe 54 via the hopper 9. The tube 54 is continuous with the tube 7.

  In the mixing unit 50, an air flow is generated by the blower 56, and the first selection product and the additive can be mixed and conveyed in the pipe 54. In addition, the mechanism which mixes a 1st selection material and an additive is not specifically limited, It may stir with the blade | wing which rotates at high speed, and uses rotation of a container like a V-type mixer. There may be.

  As the additive supply unit 52, a screw feeder as shown in FIG. 1 or a disk feeder (not shown) is used. The additive supplied from the additive supply unit 52 includes a resin for binding a plurality of fibers. At the time when the resin is supplied, the plurality of fibers are not bound. The resin melts when passing through the sheet forming portion 80 and binds a plurality of fibers.

  The resin supplied from the additive supply unit 52 is a thermoplastic resin or a thermosetting resin. For example, AS resin, ABS resin, polypropylene, polyethylene, polyvinyl chloride, polystyrene, acrylic resin, polyester resin, polyethylene terephthalate, Polyphenylene ether, polybutylene terephthalate, nylon, polyamide, polycarbonate, polyacetal, polyphenylene sulfide, polyether ether ketone, and the like. These resins may be used alone or in combination. The additive supplied from the additive supply unit 52 may be fibrous or powdery.

  In addition to the resin that binds the fibers, the additive supplied from the additive supply unit 52 prevents coloring of the fibers and the aggregation of the fibers depending on the type of sheet to be produced. An anti-aggregation agent for making the fibers and a flame retardant for making the fibers difficult to burn may be included. The mixture (mixture of the first selection product and the additive) that has passed through the mixing unit 50 is transferred to the deposition unit 60 via the pipe 54.

  The depositing unit 60 introduces the mixture that has passed through the mixing unit 50 from the introduction port 62, loosens the entangled defibrated material (fibers), and drops the mixture while dispersing it in the atmosphere (in the air) or the like. Furthermore, when the additive resin supplied from the additive supply unit 52 is fibrous, the deposition unit 60 loosens the entangled resin. Thereby, the deposition unit 60 can deposit the mixture on the second web forming unit 70 with good uniformity.

  As the deposition unit 60, a rotating cylindrical sieve is used. The deposition unit 60 has a net, and drops fibers or particles (those that pass through the net) included in the mixture that has passed through the mixing unit 50 that are smaller than the mesh opening size. The configuration of the deposition unit 60 is the same as the configuration of the sorting unit 40, for example.

  It should be noted that the “sieving” of the depositing unit 60 may not have a function of selecting a specific object. That is, the “sieving” used as the depositing unit 60 means that the net is provided, and the depositing unit 60 may drop all of the mixture introduced into the depositing unit 60.

  The second web forming unit 70 deposits the passing material that has passed through the deposition unit 60 to form the web W. The second web forming unit 70 includes, for example, a mesh belt 72, a tension roller 74, and a suction mechanism 76.

  While moving, the mesh belt 72 accumulates the passing material that has passed through the opening of the accumulation unit 60 (the opening of the mesh). The mesh belt 72 is stretched by a stretching roller 74, and is configured to allow air to pass therethrough. The mesh belt 72 moves as the stretching roller 74 rotates. While the mesh belt 72 continuously moves, the passing material that has passed through the accumulation portion 60 is continuously piled up, whereby the web W is formed on the mesh belt 72. The mesh belt 72 is made of, for example, metal, resin, cloth, or non-woven fabric.

  The suction mechanism 76 is provided below the mesh belt 72 (on the side opposite to the accumulation unit 60 side). The suction mechanism 76 can generate an air flow directed downward (air flow directed from the accumulation unit 60 toward the mesh belt 72). By the suction mechanism 76, the mixture dispersed in the air by the deposition unit 60 can be sucked onto the mesh belt 72. Thereby, the discharge speed from the deposition part 60 can be increased. Furthermore, the suction mechanism 76 can form a downflow in the dropping path of the mixture, and can prevent the defibrated material and additives from being entangled during the dropping.

  As described above, the web W in a state of being soft and swelled with a large amount of air is formed by passing through the deposition part 60 and the second web forming part 70. The web W deposited on the mesh belt 72 is conveyed to the sheet forming unit 80.

  In the illustrated example, a humidity control unit 78 that adjusts the humidity of the web W is provided. The humidity control unit 78 can adjust the amount ratio of the web W and water by adding water or water vapor to the web W.

  The sheet forming unit 80 forms the sheet S by pressurizing and heating the web W deposited on the mesh belt 72. In the sheet forming unit 80, by heating the mixture of the defibrated material and the additive mixed in the web W, the plurality of fibers in the mixture are bound to each other via the additive (resin). Can do.

  The sheet forming unit 80 includes a pressurizing unit 82 that pressurizes the web W, and a heating unit 84 that heats the web W pressed by the pressurizing unit 82. The pressurizing unit 82 includes a pair of calendar rollers 85 and applies pressure to the web W. The web W is pressed to reduce its thickness, and the density of the web W is increased. As the heating unit 84, for example, a heating roller (heater roller), a hot press molding machine, a hot plate, a hot air blower, an infrared heater, or a flash fixing device is used. In the illustrated example, the heating unit 84 includes a pair of heating rollers 86. By forming the heating unit 84 as the heating roller 86, the sheet S is formed while the web W is continuously conveyed as compared with the case where the heating unit 84 is configured as a plate-like pressing device (flat plate pressing device). Can do. Here, the calendar roller 85 (pressure unit 82) can apply a pressure higher than the pressure applied to the web W by the heating roller 86 (heating unit 84). The number of calendar rollers 85 and heating rollers 86 is not particularly limited.

  The cutting unit 90 cuts the sheet S formed by the sheet forming unit 80. In the illustrated example, the cutting unit 90 includes a first cutting unit 92 that cuts the sheet S in a direction that intersects the conveyance direction of the sheet S, and a second cutting unit 94 that cuts the sheet S in a direction parallel to the conveyance direction. ,have. The second cutting unit 94 cuts the sheet S that has passed through the first cutting unit 92, for example.

  Thus, a single-sheet sheet S having a predetermined size is formed. The cut sheet S is discharged to the discharge unit 96.

  Next, the configuration of the raw material supply apparatus will be described. FIG. 2 is a schematic diagram showing the configuration of the raw material supply apparatus. As shown in FIG. 2, the raw material supply apparatus 10 includes a supply unit 200, a detection unit 300, and a control unit 104 (see FIG. 1). The control unit 104 of this example is provided in common in the raw material supply apparatus 10 and the sheet manufacturing apparatus 100 and controls the whole. The raw material supply apparatus 10 and the sheet manufacturing apparatus 100 may be individually provided with a control unit to be linked. The raw material supply apparatus 10 includes a housing 190, and the supply unit 200 and the detection unit 300 are accommodated in the housing 190. In the present embodiment, the raw material is a sheet-like raw material, and for example, a case will be described in which A4-sized waste paper Pu mainly used in an office or the like is supplied.

  The supply unit 200 includes a first supply unit (first supply mechanism) 201 and a second supply unit (second supply mechanism) 202. The first supply unit 201 includes a tray unit 211 that accumulates and stores a plurality of used paper Pu, a moving mechanism 221 that moves the tray unit 211 in the vertical direction, and the like. The moving mechanism 221 is configured by, for example, a ball screw. A pickup roller 230 is arranged at a position corresponding to the uppermost used paper Pu placed on the tray unit 211, and the used paper Pu is fed out one by one. A transport roller pair 231 that transports the used paper Pu fed by the pickup roller 230 is disposed downstream of the pickup roller 230 in the transport direction of the used paper Pu. The used paper Pu is transported by the transport roller pair 231 and discharged (supplied) from the raw material supply apparatus 10 along the guide portion 233 disposed outside the housing 190. Note that the configuration of the second supply unit 202 is the same as the configuration of the first supply unit 201 described above, and a description thereof will be omitted. Further, the arrangement of the first supply unit 201 and the second supply unit 202 is not particularly limited, and the first supply unit 201 and the second supply unit 202 may be arranged side by side in the vertical direction (gravity direction) or may be arranged side by side in the horizontal direction (horizontal direction). .

  The supply unit 200 is not limited to the above configuration. For example, the supply unit 200 may be configured to supply stacked used paper from the lowest used paper Pu instead of the highest used paper Pu. Moreover, when it is a supply part which supplies the paper piece which crushed used paper Pu to the defibrating part 20, for example, it can comprise with a hopper.

  In the first supply unit 201 and the second supply unit 202, when one supply unit is operating (supplying used paper Pu), the other supply unit waits (or pauses) by the control unit 104. It is controlled not to supply used paper Pu.

  The detection unit 300 detects an abnormal state of the supply unit 200, and the detection unit 300 of the present embodiment includes a first detection unit 301 and a second detection unit 302, and includes the first supply unit 201 and the first supply unit 201. The two supply units 202 are arranged in correspondence with each other. Thereby, an abnormal state in the first supply unit 201 and the second supply unit 202 can be detected. The first detection unit 301 is disposed between the pickup roller 230 and the transport roller pair 231 in the transport path of the used paper Pu. The first detection unit 301 is, for example, a photo interrupter, and includes a light emitting unit 310a that emits light and a light receiving unit 310b that receives light emitted from the light emitting unit 310a. As the light emitting element of the light emitting unit 310a, for example, an LED (Light Emitting Diode) light emitting element, a laser light emitting element, or the like is applied. The light receiving unit 310b is configured by a phototransistor, a photo IC, or the like. Thereby, it is possible to detect the presence or absence of the used paper Pu (on the optical path of the first detection unit 301) between the light emitting unit 310a and the light receiving unit 310b.

  The first detection unit 301 is connected to the control unit 104 and is driven and controlled based on a predetermined program. The control unit 104 drives the first detection unit 301 and compares the amount of light received by the light receiving unit 310b with a predetermined threshold to detect the presence or absence of used paper Pu. When the presence or absence of used paper Pu is repeatedly detected in synchronization with the driving of the pickup roller 230 and the transport roller pair 231, the used paper Pu is normally conveyed from the first supply unit 201 (normal operation state) ). On the other hand, when the state in which the amount of light received by the light receiving unit 310b remains unchanged within a predetermined timing or within a predetermined time, it is determined that the first supply unit 201 is in an abnormal state. For example, when the used paper Pu is not normally conveyed from the first supply unit 201 due to the occurrence of a conveyance failure due to a jam or the like of the used paper Pu, it is determined that the state is abnormal. Note that the configuration of the second detection unit 302 is the same as the configuration of the first detection unit 301 described above, and a description thereof will be omitted.

The detection unit 300 is not limited to the above-described configuration, and may be configured to acquire image information of the used paper Pu using, for example, a CCD sensor, a CMOS sensor, or the like. In this case, for example, detection of wrinkles and folds of the used paper Pu and detection of attached matter such as staples and clips attached to the used paper Pu by feature amount analysis using the density of each pixel of the image data of the used paper Pu. When these are detected, the control unit 104 can determine that the used paper Pu is not normally conveyed from the supply unit 200 (abnormal state).
In addition, the reflected light or transmitted light of the light irradiated to the used paper Pu from the near infrared light source is received by the optical sensor, and the paper type is determined based on the spectrum analysis by the fast Fourier transform. If it is mixed, it may be determined that the state is abnormal. Other methods such as ultrasonic waves may be used as a paper type discrimination method.
Further, the amount of the raw material may be detected optically or by ultrasonic waves, and the abnormal state may be determined when the raw material is exhausted or when the raw material is less than a threshold value.
Further, for example, when it is detected by ultrasonic waves that a plurality of used papers Pu are conveyed in a state of being overlapped (double feeding), the control unit 104 may determine that the supply unit 200 is in an abnormal state. In addition, you may apply combining the structure of the said detection part 300 suitably.

  The raw material supply apparatus 10 includes a notification unit 400 that notifies the status of the supply unit 200. In this embodiment, it has the 1st notification part 401 which notifies the status of the 1st supply part 201, and the 2nd notification part 402 which notifies the status of the 2nd supply part 202. As the statuses in the first supply unit 201 and the second supply unit 202, the operating state in which the used paper Pu is supplied, the pause state in which the used paper Pu cannot be supplied due to an abnormal state, and the used paper Pu can be supplied. There is a standby state in which the printer is not supplied, and the first notification unit 401 and the second notification unit 402 notify the status information. The state in which each supply unit can supply used paper Pu is also referred to as a normal state, and the state in which used paper Pu cannot be supplied is referred to as an abnormal state. The operation state and the standby state are included in the normal state, and the sleep state is included in the abnormal state.

  As illustrated in FIG. 2, the first notification unit 401 and the second notification unit 402 of the present embodiment are stacked layers of a red display unit 411, a yellow display unit 412, and a green display unit 413. It is a type | mold indicator lamp, and is arrange | positioned at the top part of the housing | casing 190. FIG. The red display unit 411 corresponds to the sleep state, the yellow display unit 412 corresponds to the standby state, and the green display unit 413 corresponds to the operation state. Moreover, you may provide each display part 401,402 with the identification display 420a, 420b for identifying which supply part 201,202 each notification part 401,402 respond | corresponds. Thereby, the user can easily grasp the statuses of the first supply unit 201 and the second supply unit 202. Note that the configuration of the notification unit 400 is not limited to the above-described configuration, and for example, is a configuration in which the status of the supply unit 200 is notified by blinking display using a light emitting element or the like, display using characters or symbols, or voice or beep. There may be. As described above, the notification unit 400 notifies the user of the status of the supply unit 200 by outputting visual information or auditory information.

  Next, the structure of the control part of a raw material supply apparatus is demonstrated. FIG. 3 is a control block diagram illustrating a configuration of a control unit of the raw material supply apparatus. As shown in FIG. 3, the control unit 104 includes a command unit 1300, a drive unit 1400, a time measuring function unit 1410, and the like. The command unit 1300 includes a CPU 1301, a ROM 1302 as a storage unit, a RAM 1303, and an input / output interface 1304, and the CPU 1301 processes various signals input via the input / output interface 1304 based on data in the ROM 1302 and RAM 1303. A control signal is output to the drive unit 1400 via the interface 1304. For example, the CPU 1301 performs various controls based on a control program stored in the ROM 1302. The timekeeping function unit 1410 includes a stopwatch function capable of measuring time, a calendar function capable of measuring date and time, and the like.

  The drive unit 1400 includes a first detection drive unit 1401, a second detection drive unit 1402, a first supply drive unit 1403, a second supply drive unit 1404, a first notification drive unit 1405, a second notification drive unit 1406, and an input / output drive. Part 1407. Then, based on the control signal of the command unit 1300, the first detection drive unit 1401 drives and controls the first detection unit 301, the second detection drive unit 1402 drives and controls the second detection unit 302, and the first supply drive. The unit 1403 controls the drive of the first supply unit 201, the second supply drive unit 1404 controls the drive of the second supply unit 202, the first notification drive unit 1405 controls the drive of the first notification unit 401, and the second notification. The driving unit 1406 controls driving of the second notification unit 402. The input / output driving unit 1407 controls the driving of the input / output unit 104a (see FIG. 1). For example, the input / output unit 104a includes a touch panel in which an input unit that can be operated by the user and a display unit that displays the status of the raw material supply apparatus 10 and the like are integrally formed.

  When the control unit 104 determines that the first supply unit 201 is in an abnormal state based on the detection result of the detection unit 300, the control unit 104 shifts the first supply unit 201 from the operating state to the dormant state, and the second supply unit. 202 is shifted from the standby state to the operating state, and the raw material is supplied from the second supply unit 202. Also, the first supply unit 201 in the dormant state determines whether or not it has returned to the normal state, and if it is determined that the first supply unit 201 has returned to the normal state, the first supply unit 201 is shifted to the standby state.

  Next, the raw material supply method of the raw material supply apparatus will be described. In the present embodiment, a raw material supply method in the raw material supply apparatus 10 will be described. FIG. 4 is a state transition diagram of the raw material supply apparatus. 5 to 8 are explanatory diagrams showing display examples in the input / output unit. FIG. 9 is a flowchart showing a process for shifting the raw material supply apparatus from a halt state to a standby state.

  When the raw material supply apparatus 10 (sheet manufacturing apparatus 100) is activated, the initial setting of the raw material supply apparatus 10 is performed. For example, the user selects the setting screen of the raw material supply apparatus 10 from the menu of the input / output unit 104a, operates the first supply unit 201, and sets the second supply unit 202 to stand by. Then, the start switch is operated to operate the raw material supply apparatus 10 (sheet manufacturing apparatus 100).

  In the status S1, the first supply unit 201 is in an operating state and the second supply unit 202 is in a standby state. At this time, the first notification unit 401 lights the green display unit 413 corresponding to the operation state, and the second notification unit 402 lights the yellow display unit 412 corresponding to the standby state. Further, the status screen of the input / output unit 104a displays that the first supply unit 201 is in an operating state and the second supply unit 202 is in a standby state, as shown in FIG. Thereby, the user can easily grasp the status of the first supply unit 201 and the second supply unit 202.

  Further, in the status S1, the control unit 104 drives the first detection unit 301 corresponding to the first supply unit 201 in the operating state, and determines the first supply unit 201 based on the detection result by the first detection unit 301. Determine if there is an abnormality. When it is determined that there is no abnormality in the first supply unit 201, the status S1 is maintained. On the other hand, if it is determined that there is an abnormality in the first supply unit 201, the first supply unit 201 is shifted from the operating state to the dormant state, and the second supply unit 202 is shifted from the standby state to the operating state. Used paper Pu is supplied from the supply unit 202 (status S2).

  In the status S2, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in a dormant state and the second supply unit 202 is in an operating state. At this time, the first notification unit 401 turns off the green display unit 413 and turns on the red display unit 411 corresponding to the hibernation state. The second notification unit 402 turns off the yellow display unit 412 and turns on the green display unit 413 corresponding to the operating state. Further, as shown in FIG. 6, the screen of the input / output unit 104a displays that the first supply unit 201 is in a dormant state and the second supply unit 202 is in an operating state.

  Further, in the status S2, the control unit 104 performs a process of determining whether or not the first supply unit 201 in the resting state has returned to the normal state (whether the abnormal state has been eliminated) (FIG. 9). For example, when the first detection unit 301 detects a conveyance failure due to a jam of the used paper Pu and the first supply unit 201 is in a pause state, the user removes the used paper Pu causing the jam from the transport path. The control unit 104 can know that the jam (abnormal state) of the first supply unit 201 has been eliminated based on the detection result by the first detection unit 301 (step T11). When the abnormal state is resolved (T11: YES), the control unit 104 determines whether or not the first supply unit 201 in the dormant state has returned to the normal state based on the detection result of the first detection unit 301. (Step T12). When the abnormal state has not been eliminated (T11: NO) and when it is determined that the first supply unit 201 has not returned to the normal state (T12: NO), the process proceeds to step T11. On the other hand, when it is determined that the first supply unit 201 has returned to the normal state (T12: YES), the first supply unit 201 is shifted to the standby state (T13).

  In status S3, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in a standby state and the second supply unit 202 is in an operating state. At this time, the first notification unit 401 turns off the red display unit 411 and turns on the yellow display unit 412 corresponding to the standby state. The second notification unit 402 continuously lights up the green display unit 413 corresponding to the operation state. On the screen of the input / output unit 104a, as shown in FIG. 7, it is displayed that the first supply unit 201 is in a standby state and the second supply unit 202 is in an operating state.

  In status S <b> 3, the control unit 104 drives the second detection unit 302 corresponding to the second supply unit 202 that is in an operating state, and causes the second supply unit 202 to be in an abnormal state based on the detection result by the second detection unit 302. Judge whether there is. When it is determined that there is no abnormality in the second supply unit 202, the status S3 is maintained. On the other hand, when it is determined that there is an abnormality in the second supply unit 202, the second supply unit 202 is shifted from the operating state to the dormant state, and the first supply unit 201 is shifted from the standby state to the operating state. Waste paper Pu is supplied from one supply unit 201 (status S4).

  In status S4, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in an operating state and the second supply unit 202 is in a dormant state. At this time, the first notification unit 401 turns off the yellow display unit 412 and turns on the green display unit 413 corresponding to the operation state. The second notification unit 402 turns off the green display unit 413 and turns on the red display unit 411 corresponding to the hibernation state. Further, the screen of the input / output unit 104a displays that the first supply unit 201 is in an operating state and the second supply unit 202 is in a dormant state, as shown in FIG.

  Further, in the status S4, the control unit 104 performs a process of determining whether or not the second supply unit 202 in the resting state has returned to the normal state (whether the abnormal state has been resolved). Since this process is the same as the process described above with reference to FIG. When it is determined that the second supply unit 202 has returned to the normal state, the second supply unit 202 is shifted to the standby state, and the status of the raw material supply apparatus 10 is S1.

  As described above, according to the present embodiment, the following effects can be obtained.

  When the first supply unit 201 shifts from the operation state to the hibernation state, the return process is performed on the first supply unit 201 in the hibernation state. Thereafter, after determining that the state has returned to the normal state, the state shifts to the standby state. For this reason, the frequent occurrence of the state transition between the operation state of the first supply unit 201 and the hibernation state caused by the abnormality of the first detection unit 301 is reduced, and the used paper Pu can be supplied stably.

(Second Embodiment)
Next, a second embodiment will be described. In addition, since the structure of the sheet manufacturing apparatus concerning this embodiment and the basic structure of a raw material supply apparatus are the same as that of 1st Embodiment, description is abbreviate | omitted. The control unit 104 according to the present embodiment causes the supply unit 200 to perform a preliminary operation before shifting the supply unit 200 in a suspended state to a standby state, and determines whether the supply unit 200 has returned to a normal state. . For example, after the detection unit 300 detects that the first supply unit 201 is in a normal state, the control unit 104 causes the first supply unit 201 to perform a preliminary operation, and the first supply unit 201 returns to a normal state. Determine whether or not.

  FIG. 10 is a flowchart showing a process for shifting the raw material supply apparatus from a halt state to a standby state.

  In status S2, the control unit 104 determines whether or not the abnormal state of the first supply unit 201 in the dormant state has been resolved based on the detection result of the first detection unit 301 (step T21). When it is determined that the abnormal state of the first supply unit 201 has not been resolved (T21: NO), the process waits until the abnormal state is resolved. On the other hand, when it is determined that the abnormal state of the first supply unit 201 has been resolved (T21: YES), the first supply unit 201 is caused to perform a preliminary operation (step T22). As a preliminary operation, for example, the pickup roller 230 and the transport roller pair 231 of the first supply unit 201 are driven to transport the used paper Pu to the vicinity of the guide unit 233. At this time, the pick-up roller 230 and the transport roller pair 231 may be reversed, and the used paper Pu once transported may be returned to the tray unit 211. Further, the forward and reverse rotations of the pickup roller 230 and the transport roller pair 231 may be repeated, and the transport operation may be performed repeatedly. In this way, the operation of the first supply unit 201 is checked so as not to affect the supply of the used paper Pu by the second supply unit 202 in the operating state. Thereafter, the control unit 104 determines whether or not the first supply unit 201 has returned to the normal state based on the detection result of the first detection unit 301 (step T23). For example, based on the detection result of the first detection unit 301, it is determined whether or not the transport (preliminary operation) of the used paper Pu by the first supply unit 201 has been performed normally. Judged to have returned to. When it is determined that the used paper Pu is not normally conveyed by the first supply unit 201 and the first supply unit 201 has not returned to the normal state (T23: NO), the process proceeds to step T21. On the other hand, when it is determined that the first supply unit 201 has returned to the normal state (T23: YES), the first supply unit 201 is shifted to the standby state (step T24).

  Similarly, when the second supply unit 202 is in the dormant state (status S4), the second supply unit 202 performs a preliminary operation, determines whether or not the normal state is restored, and shifts to the standby state.

  As described above, according to the present embodiment, the following effects can be obtained.

  By performing the preliminary operation after the abnormal state is resolved, it can be more reliably determined that the first supply unit 201 and the second supply unit 202 are in a normal state.

(Third embodiment)
Next, a third embodiment will be described. In addition, since the structure of the sheet manufacturing apparatus concerning this embodiment and the basic structure of a raw material supply apparatus are the same as that of 1st Embodiment, description is abbreviate | omitted. The control unit 104 according to the present embodiment confirms that the detection result by the detection unit 300 has not changed before the supply unit 200 in the dormant state is shifted to the standby state, and has the supply unit 200 returned to the normal state? Judge whether or not. For example, the control unit 104 determines that the first supply unit 201 has returned to the normal state when the normal state of the first supply unit 201 in the dormant state continues for a predetermined time based on the detection result by the detection unit 300. To do. The predetermined time can be set as appropriate according to the form of the first supply unit 201, the operating status, and the like.

  FIG. 11 is a flowchart showing a process for shifting the raw material supply apparatus from the rest state to the standby state.

  In status S2, the control unit 104 determines whether or not the abnormal state of the first supply unit 201 in the dormant state has been resolved based on the detection result of the first detection unit 301 (step T31). When it is determined that the abnormal state of the first supply unit 201 has not been resolved (T31: NO), the process waits until the abnormal state is resolved. On the other hand, when it is determined that the abnormal state of the first supply unit 201 has been resolved (T31: YES), the time measuring function unit 1410 starts measuring time (step T32). The control unit 104 determines whether or not the first supply unit 201 is in a normal state based on the detection result by the first detection unit 301 (T33). When it is determined that the first supply unit 201 is not in a normal state (T33: NO), the process proceeds to step T31. On the other hand, when it is determined that the first supply unit 201 is in a normal state (T33: YES), it is confirmed whether or not a predetermined time has passed (step T34). If the predetermined time has not elapsed (step T34: NO), the process proceeds to step T33. On the other hand, when the predetermined time has elapsed (step T34: YES), the first supply unit 201 is shifted to the standby state (step T35). In this way, when the normal state continues for a predetermined time, the supply unit 200 in the dormant state is shifted to the standby state.

  Similarly, when the second supply unit 202 is in the dormant state (status S4), when the normal state of the second supply unit 202 continues for a predetermined time, the second supply unit 202 is shifted to the standby state.

  As described above, according to the present embodiment, the following effects can be obtained.

  The determination of the return of the first supply unit 201 to the normal state (determination of transition from the sleep state to the standby state) is made based on whether or not the normal state has continued for a predetermined time. Thereby, the state transition of the 1st supply part 201 resulting from abnormality of the 1st detection part 301 can be reduced.

(Fourth embodiment)
Next, a fourth embodiment will be described. In addition, since the structure of the sheet manufacturing apparatus concerning this embodiment and the basic structure of a raw material supply apparatus are the same as that of 1st Embodiment, description is abbreviate | omitted. The control unit 104 of the present embodiment confirms that there is no change in the detection result by the detection unit 300, and further confirms that there is a predetermined input before shifting the supply unit 200 in the dormant state to the standby state. It is determined whether or not the normal state has been restored. For example, based on the detection result by the detection unit 300, the control unit 104 is the first when the normal state of the first supply unit 201 in the dormant state continues for a predetermined time and when a predetermined input is received. The supply unit 201 determines that the normal state has been restored. The predetermined input is, for example, a signal input when the user operates a specific key displayed on the operation screen of the input / output unit 104a.

  FIG. 12 is a flowchart showing a process for shifting the raw material supply apparatus from the rest state to the standby state.

  In the status S2, as in the third embodiment, the control unit 104 determines whether or not the abnormal state of the first supply unit 201 in the dormant state has been resolved (step T41), and measures the time by the time measuring function unit 1410. Start (step T42), and determine whether or not the normal state of the first supply unit 201 has continued for a predetermined time (steps T43 and T44). And when the normal state of the 1st supply part 201 continues for the predetermined time (T44: YES), the process which detects whether there exists a predetermined input is performed (step T45). When there is no predetermined input (T45: NO), the process proceeds to step T43. On the other hand, when there is a predetermined input (T45: YES), the first supply unit 201 is shifted to the standby state (T46). In this way, the normal state continues for a predetermined time. And when there exists a predetermined input, the supply part 200 in a dormant state is shifted to a standby state.

  Similarly, when the second supply unit 202 is in a dormant state (status S4), when the normal state of the second supply unit 202 continues for a predetermined time and there is a predetermined input, the second supply unit 202 is Move to standby state.

  As described above, according to the present embodiment, the following effects can be obtained.

  The determination of the return of the first supply unit 201 to the normal state (determination of transition from the hibernation state to the standby state) is performed based on whether the normal state has continued for a predetermined time and a predetermined input has been received. Thereby, the state transition of the 1st supply part 201 resulting from abnormality of the 1st detection part 301 can be reduced.

(Fifth embodiment)
Next, a fifth embodiment will be described. In addition, since the structure of the sheet manufacturing apparatus concerning this embodiment and the basic structure of a raw material supply apparatus are the same as that of 1st Embodiment, description is abbreviate | omitted. The control unit 104 according to the present embodiment confirms that the predetermined input has been received before the supply unit 200 in the dormant state shifts to the standby state, and further confirms that the detection result by the detection unit 300 has not changed. Then, it is determined whether or not the normal state has been restored. For example, the control unit 104 receives the predetermined input, and then, based on the detection result by the detection unit 300, when the normal state of the first supply unit 201 in the dormant state continues for a predetermined time, the first supply unit 201 Is determined to have returned to a normal state.

  FIG. 13 is a flowchart showing a process for shifting the raw material supply apparatus from a halt state to a standby state.

  In status S2, the control unit 104 determines whether or not the abnormal state of the first supply unit 201 in the dormant state has been resolved based on the detection result of the first detection unit 301 (step T51). If it is determined that the abnormal state of the first supply unit 201 has not been eliminated (T51: NO), the process waits until the abnormal state is eliminated. On the other hand, when it is determined that the abnormal state of the first supply unit 201 has been resolved (T51: YES), processing for detecting whether or not there is a predetermined input is performed (step T52). As in the fourth embodiment, the predetermined input is, for example, a signal input by the user operating a specific key displayed on the operation screen of the input / output unit 104a. If there is no predetermined input (step T52: NO), the process waits until there is a predetermined input or shifts to step T51. On the other hand, when there is a predetermined input (step T52: YES), time measurement by the time measuring function unit 1410 is started (step T53) as in the third embodiment, and the normal state of the first supply unit 201 is maintained for a predetermined time. It is determined whether or not the operation has been continued (steps T54 and T55). If the operation has continued for a predetermined time, the first supply unit 201 is shifted to a standby state (S56).

  Similarly, when the second supply unit 202 is in a dormant state (status S4), after receiving a predetermined input, the second supply unit 202 waits if the normal state of the second supply unit continues for a predetermined time. Transition to the state.

  As described above, according to the present embodiment, the following effects can be obtained.

  The determination of the return of the first supply unit 201 to the normal state (determination of transition from the sleep state to the standby state) is made based on whether a predetermined input is received and whether the normal state has continued for a predetermined time. Thereby, the shift to the standby state of the first supply unit 201 due to an erroneous operation of the specific key by the user can be prevented. Moreover, the state transition of the 1st supply part 201 resulting from abnormality of the 1st detection part 301 can be reduced.

(Sixth embodiment)
Next, a sixth embodiment will be described. Note that the configuration of the sheet manufacturing apparatus and the basic configuration of the raw material supply apparatus according to the present embodiment are the same as those of the first embodiment, and thus the description thereof will be omitted. The processing contents of the unit will be described.

  When the first supply unit 201 shifts from the pause state to the standby state, the control unit 104 according to the present embodiment switches from the second supply unit 202 to the first supply unit 201 to supply used paper Pu as a raw material. That is, the first supply unit 201 is used in preference to the second supply unit 202.

  The raw material supply method of the raw material supply apparatus concerning this embodiment is demonstrated. FIG. 14 is a state transition diagram of the raw material supply apparatus. 15 to 18 are explanatory diagrams showing display examples in the input / output unit.

  When the raw material supply apparatus 10 (sheet manufacturing apparatus 100) is activated, the initial setting of the raw material supply apparatus 10 is performed. For example, the user selects the setting screen of the raw material supply apparatus 10 from the menu of the input / output unit 104a, and sets the priority order of the first supply unit 201 and the second supply unit 202. In the present embodiment, a case where the first supply unit 201 is used with priority will be described. As shown in FIG. 15, the key of priority “first place” is pressed against the first supply unit 201, and the key of priority “second place” is pushed against the second supply unit 202. Thereby, the priority of the supply part 200 is set. And a start button is operated and the raw material supply apparatus 10 (sheet manufacturing apparatus 100) is operated. Since the priority of the first supply unit 201 is high, the first supply unit 201 is in an operating state, the second supply unit 202 is in a standby state (status S1), and the first supply unit 201 starts to supply used paper Pu.

  Regarding the status S1, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in an operating state and the second supply unit 202 is in a standby state. At this time, the first notification unit 401 lights the green display unit 413 corresponding to the operation state, and the second notification unit 402 lights the yellow display unit 412 corresponding to the standby state. Also, on the screen of the input / output unit 104a, as shown in FIG. 16, the priority (first) and status (operating state) of the first supply unit 201 and the priority (second) of the second supply unit 202 are displayed. ) And status (standby state) are displayed. Thereby, the user can easily grasp the priority and status of the first supply unit 201 and the second supply unit 202.

  Further, in the status S1, the control unit 104 drives the first detection unit 301 corresponding to the first supply unit 201 in the operating state, and determines the first supply unit 201 based on the detection result by the first detection unit 301. Determine if there is an abnormality. When it is determined that there is no abnormality in the first supply unit 201, the status S1 is maintained. On the other hand, if it is determined that there is an abnormality in the first supply unit 201, the first supply unit 201 is shifted from the operating state to the dormant state, and the second supply unit 202 is shifted from the standby state to the operating state. Used paper Pu is supplied from the supply unit 202 (status S2).

  In the status S2, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in a dormant state and the second supply unit 202 is in an operating state. At this time, the first notification unit 401 turns off the green display unit 413 and turns on the red display unit 411 corresponding to the hibernation state. The second notification unit 402 turns off the yellow display unit 412 and turns on the green display unit 413 corresponding to the operating state. Further, as shown in FIG. 17, the screen of the input / output unit 104a has a priority (first) and status (hibernation) of the first supply unit 201 and a priority (second) of the second supply unit 202. ) And status (operation status) are displayed.

  Further, in the status S2, the control unit 104 performs a process of determining whether or not the first supply unit 201 in the resting state has returned to the normal state (whether the abnormal state has been resolved). This process is performed in the same manner as in any of the first to fifth embodiments. When it is determined that the first supply unit 201 has returned to the normal state, the first supply unit 201 is shifted to the standby state (status S3).

  In status S3, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in a standby state and the second supply unit 202 is in an operating state. At this time, the first notification unit 401 turns off the red display unit 411 and turns on the yellow display unit 412 corresponding to the standby state. The second notification unit 402 continuously lights up the green display unit 413 corresponding to the operation state. Further, as shown in FIG. 18, the screen of the input / output unit 104a includes the priority (first) and status (standby state) of the first supply unit 201, and the priority (second) of the second supply unit 202. ) And status (operation status) are displayed.

  And when the 1st supply part 201 transfers to a standby state from a hibernation state, it switches from the 2nd supply part 202 to the 1st supply part 201, and supplies used paper Pu. That is, the status S3 is shifted to the status S1. The transition from the status S3 to the status S1 is appropriately performed in consideration of the operation status of the second supply unit 202 so that the supply of the used paper Pu is not interrupted. At this time, it is preferable to switch from the second supply unit 202 to the first supply unit 201 so that the supply interval of the used paper Pu is constant.

  As described above, according to the present embodiment, the following effects can be obtained.

  The first supply unit 201 can be preferentially used as the main supply unit. For example, when the amount of used paper Pu stored in the first supply unit 201 is larger than that of the second supply unit 202, the first supply unit 201 can be used as the main supply unit, so that the occurrence of a used paper Pu error can be suppressed. Further, for example, waste paper Pu or the like with high mechanical density is stored in the first supply unit 201, waste paper Pu or the like with low mechanical density is stored in the second supply unit 202, and the first supply unit 201 is used as the main supply unit. By doing so, it is possible to process a highly confidential document (used paper Pu) faster.

  In the present embodiment, the case where the first supply unit 201 is preferentially used has been described. However, the second supply unit 202 may be preferentially used. Even if it does in this way, the same effect as the above can be acquired.

(Seventh embodiment)
Next, a seventh embodiment will be described. Note that the configuration of the sheet manufacturing apparatus and the basic configuration of the raw material supply apparatus according to the present embodiment are the same as those of the first embodiment, and thus the description thereof will be omitted. The configuration of the unit and the processing content of the control unit will be described. The same reference numerals are given to the same configurations as those in the first embodiment.

  The supply unit 200 of the raw material supply apparatus 10 of the present embodiment includes a first supply unit 201, a second supply unit 202, and a third supply unit (not shown) (see FIG. 2). The configuration of the third supply unit is the same as that of the first supply unit 201. The notification unit 400 of the raw material supply apparatus 10 includes a first notification unit 401 corresponding to the first supply unit 201, a second notification unit 402 corresponding to the second supply unit 202, and a third supply unit corresponding to the third supply unit. 3 notification unit (not shown). The configuration of the third notification unit is the same as that of the first notification unit 401.

  Next, the raw material supply method of the raw material supply apparatus concerning this embodiment is demonstrated. FIG. 19 is a state transition diagram of the raw material supply apparatus. 20 to 25 are explanatory diagrams showing display examples in the input / output unit.

  As shown in FIG. 19, when the raw material supply apparatus 10 (sheet manufacturing apparatus 100) is started, the initial setting of the raw material supply apparatus 10 is performed. For example, the user selects the setting screen of the raw material supply apparatus 10 from the menu of the input / output unit 104a, and sets the priority order of the first supply unit 201, the second supply unit 202, and the third supply unit. This embodiment demonstrates the case where it uses preferentially in order of the 1st supply part 201, the 2nd supply part 202, and the 3rd supply part. As shown in FIG. 20, the key of priority “first place” is pressed against the first supply unit 201, the key of priority “second place” is pushed against the second supply unit 202, and the third supply is performed. Press the key of priority “3rd” for the part. Thereby, the priority of the supply part 200 is set. And a start button is operated and the raw material supply apparatus 10 (sheet manufacturing apparatus 100) is operated. Since the priority of the first supply unit 201 is high, the first supply unit 201 is in an operating state, the second supply unit 202 and the third supply unit are in a standby state (status S11), and the first supply unit 201 supplies the used paper Pu. Is started.

  In status S11, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in an operating state and the second supply unit 202 and the third supply unit are in a standby state. At this time, the first notification unit 401 lights the green display unit 413 corresponding to the operation state, and the second notification unit 402 and the third notification unit light the yellow display unit 412 corresponding to the standby state. Further, on the screen of the input / output unit 104a, as shown in FIG. 21, the priority (first) and status (operating state) of the first supply unit 201 and the priority (second) of the second supply unit 202 are displayed. ), Status (standby state), priority (third place) and status (standby state) of the third supply unit are displayed. Thereby, the user can easily grasp the priority and status of the first supply unit 201 and the second supply unit 202.

  Further, in the status S11, the control unit 104 drives the first detection unit 301 corresponding to the first supply unit 201 that is in the operating state, and determines the first supply unit 201 based on the detection result by the first detection unit 301. Determine if there is an abnormality. When it is determined that there is no abnormal state in the first supply unit 201, the state of status S11 is maintained. On the other hand, when it is determined that there is an abnormality in the first supply unit 201, the first supply unit 201 is shifted from the operation state to the hibernation state, and priority is given to the second supply unit 202 and the third supply unit in the standby state. The second supply unit 202 having a high degree (in order) is shifted from the standby state to the operating state, and used paper Pu is supplied from the second supply unit 202 (status S12).

  In the status S12, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in a dormant state, the second supply unit 202 is in an operating state, and the third supply unit is in a standby state. At this time, the first notification unit 401 turns off the green display unit 413 and turns on the red display unit 411 corresponding to the hibernation state. The second notification unit 402 turns off the yellow display unit 412 and turns on the green display unit 413 corresponding to the operating state. The third notification unit continuously turns on the yellow display unit corresponding to the standby state. Further, as shown in FIG. 22, the screen of the input / output unit 104a has a priority (first) and status (hibernation) of the first supply unit 201, and a priority (second) of the second supply unit 202. ), Status (operating state), priority (third place) and status (standby state) of the third supply unit are displayed.

  Further, in the status S12, the control unit 104 performs a process of determining whether or not the first supply unit 201 in the dormant state has returned to the normal state (whether the abnormal state has been resolved). This process is performed in the same manner as in any of the first to fifth embodiments. When it is determined that the first supply unit 201 has returned to the normal state, the first supply unit 201 is shifted to the standby state (status S13).

  In the status S13, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in a standby state, the second supply unit 202 is in an operating state, and the third supply unit is in a standby state. At this time, the first notification unit 401 turns off the red display unit 411 and turns on the yellow display unit 412 corresponding to the standby state. The second notification unit 402 continuously lights up the green display unit 413 corresponding to the operation state. The third notification unit continuously turns on the yellow display unit corresponding to the standby state. Further, as shown in FIG. 23, the screen of the input / output unit 104a includes the priority (first) and status (standby state) of the first supply unit 201, and the priority (second) of the second supply unit 202. ), Status (operating state), priority (third place) and status (standby state) of the third supply unit are displayed.

  And when the 1st supply part 201 transfers to a standby state from a hibernation state, it switches to the 1st supply part 201 with a higher priority than the 2nd supply part 202, and supplies used paper Pu. That is, the status shifts from status S13 to status S11. The transition from the status S13 to the status S11 is appropriately performed in consideration of the operation status of the second supply unit 202 so that the supply of the used paper Pu is not interrupted. At this time, it is preferable to switch from the second supply unit 202 to the first supply unit 201 so that the supply interval of the used paper Pu is constant.

  Next, a case will be described in which the first and second supply units 201 and 202 having the first and second priorities are in a dormant state. In the status S <b> 12, the control unit 104 drives the second detection unit 302 corresponding to the second supply unit 202 that is in the operating state, and the second supply unit 202 has an abnormality based on the detection result by the second detection unit 302. Judge whether there is. When it is determined that there is no abnormality in the second supply unit 202, the status S12 is maintained. On the other hand, when it is determined that there is an abnormality in the second supply unit 202, the second supply unit 202 is shifted from the operating state to the dormant state, and the third supply unit in the standby state is shifted to the operating state to change the used paper Pu. Is supplied (status S14).

  In status S14, the status of the raw material supply apparatus 10 is such that the first and second supply units 201 and 202 are in a dormant state, and the third supply unit is in an operating state. At this time, the 1st notification part 401 makes the red display part 411 corresponding to a dormant state light continuously. The second notification unit 402 turns off the green display unit 413 and turns on the red display unit 411 corresponding to the hibernation state. The third notification unit turns off the yellow display unit and turns on the green display unit corresponding to the operation state. On the screen of the input / output unit 104a, as shown in FIG. 24, the priority (first) and status (hibernation) of the first supply unit 201 and the priority (second) of the second supply unit 202 are displayed. ), Status (resting state), priority (third place) and status (operating state) of the third supply unit are displayed.

  Further, in the status S14, the control unit 104 performs a process of determining whether or not the first and second supply units 201 and 202 in the resting state have returned to the normal state (whether the abnormal state has been resolved). This process is performed in the same manner as in any of the first to fifth embodiments. A case where the first supply unit 201 returns to a normal state will be described. When it is determined that the first supply unit 201 has returned to the normal state, the first supply unit 201 is shifted to the standby state (status S15).

  In the status S15, the status of the raw material supply apparatus 10 is such that the first supply unit 201 is in a standby state, the second supply unit 202 is in a suspended state, and the third supply unit is in an operating state. At this time, the first notification unit 401 turns off the red display unit 411 and turns on the yellow display unit 412 corresponding to the standby state. The second notification unit 402 continuously lights up the red display unit 411 corresponding to the hibernation state. The third notification unit continuously turns on the green display unit corresponding to the operation state. Further, as shown in FIG. 25, the screen of the input / output unit 104a includes the priority (first) and status (standby state) of the first supply unit 201, and the priority (second) of the second supply unit 202. ) And status (resting state), the priority order (third place) and status (operating state) of the third supply unit are displayed.

  And when the 1st supply part 201 transfers to a standby state from a hibernation state, it switches to the 1st supply part 201 with a higher priority than a 3rd supply part, and supplies used paper Pu. That is, the status shifts from status S15 to status S11. The transition from the status S15 to the status S11 is appropriately performed in consideration of the operation status of the third supply unit so that the supply of the used paper Pu is not interrupted. At this time, it is preferable to switch from the third supply unit to the first supply unit 201 so that the supply interval of the used paper Pu is constant.

  As described above, according to the present embodiment, the following effects can be obtained.

  Since the three supply units (the first supply unit 201, the second supply unit 202, and the third supply unit) are provided, the used paper Pu can be supplied more stably. Moreover, since the 1st supply part 201, the 2nd supply part 202, and the 3rd supply part can be used according to a priority, for example, according to the storage amount of a raw material, the kind of the stored raw material, etc. suitably It becomes possible to set the priority order and change the supply form of the raw material.

  The present invention is not limited to the above-described embodiment, and various modifications and improvements can be added to the above-described embodiment. In addition, a plurality of embodiments may be combined within a technically consistent range, and a part of the embodiments may be combined with a part of other embodiments. A modification will be described below.

  (Modification 1) Although the notification part 400 in the said embodiment was arrange | positioned in the supply part 200, it is not limited to this structure. For example, the configuration may be such that the status of the supply unit 200 is notified to a portable computer device such as a smartphone, a tablet terminal, or a portable personal computer carried by the user. In this case, the control unit 104 includes a communication unit capable of communicating with various portable terminals, and the communication unit allows the user terminal device via a wired LAN (local area network), a wireless LAN, a cellular phone communication network, and the Internet. May be notified of the status of the supply unit 200. In this way, even a user who cannot directly see the raw material supply apparatus 10 (sheet manufacturing apparatus 100) can grasp the status of the supply unit 200.

  (Modification 2) In the above embodiment, the priority setting of the supply unit 200 is realized by software. However, the present invention is not limited to this configuration. For example, the setting may be made using hardware such as a dip switch. Further, when it is not necessary to change the priority order of the supply unit 200, the priority order may be set in advance in the raw material supply apparatus 10 or the sheet manufacturing apparatus 100. Even if it does in this way, the same effect as the above can be acquired.

  DESCRIPTION OF SYMBOLS 10 ... Raw material supply apparatus, 12 ... Crushing part, 20 ... Defibration part, 40 ... Sorting part, 45 ... 1st web formation part, 50 ... Mixing part, 60 ... Deposition part, 70 ... 2nd web formation part, 80 DESCRIPTION OF SYMBOLS ... Sheet forming part, 90 ... Cutting part, 100 ... Sheet manufacturing apparatus, 104 ... Control part, 104a ... Input / output part, 190 ... Housing, 200 ... Supply part, 201 ... First supply part, 202 ... Second supply part 211 ... Tray part, 221 ... Movement mechanism, 230 ... Pickup roller, 231 ... Conveying roller pair, 233 ... Guide part, 300 ... Detection part, 301 ... First detection part, 302 ... Second detection part, 310a ... Light emission part , 310b ... light receiving unit, 400 ... notification unit, 401 ... first notification unit, 402 ... second notification unit.

Claims (10)

A supply unit for supplying a raw material, the supply unit including a first supply unit and a second supply unit;
A detection unit for detecting an abnormal state of the supply unit;
A control unit for controlling the supply unit,
The controller is
When the detection unit detects that the first supply unit is in an abnormal state, the first supply unit is shifted from an operation state to a pause state, and the second supply unit is shifted from a standby state to an operation state. A function to supply raw materials,
A function of determining whether or not the first supply unit in the dormant state has returned to a normal state, and shifting the first supply unit to a standby state when it is determined that the first supply unit has returned to a normal state; A raw material supply apparatus comprising: The raw material supply apparatus according to claim 1,
When the detection unit detects that the first supply unit is in a normal state, the control unit causes the first supply unit to perform a preliminary operation, and whether the first supply unit has returned to a normal state. The raw material supply apparatus characterized by determining whether or not. The raw material supply apparatus according to claim 1,
The control unit determines that the first supply unit has returned to a normal state when the normal state of the first supply unit in the dormant state is detected for a predetermined time by the detection unit. A raw material supply device characterized by the above. The raw material supply apparatus according to claim 1,
When the control unit receives a predetermined input after the normal state of the first supply unit in the dormant state is continuously detected by the detection unit for a predetermined time, the first supply unit The raw material supply apparatus is characterized in that the unit determines that the normal state has been restored. The raw material supply apparatus according to claim 1,
The control unit is normal when the normal state of the first supply unit in the dormant state is detected for a predetermined time by the detection unit after receiving a predetermined input. It is judged that it returned to the state, The raw material supply apparatus characterized by the above-mentioned. In the raw material supply apparatus according to any one of claims 1 to 5,
The control unit is configured to supply a raw material by switching from the second supply unit to the first supply unit when the first supply unit shifts from the pause state to the standby state. . In the raw material supply apparatus according to any one of claims 1 to 6,
A raw material supply apparatus comprising a notification unit for notifying the status of the supply unit. In the raw material supply apparatus according to any one of claims 1 to 7,
The supply unit has at least three supply units,
The control unit causes a raw material to be supplied from a supply unit having a high priority among supply units in a standby state. A raw material supply method for a raw material supply apparatus including a supply unit for supplying a raw material, the supply unit including a first supply unit and a second supply unit,
The step of detecting an abnormal state of the supply unit, and when the first supply unit is detected to be in an abnormal state, the first supply unit is shifted from an operating state to a dormant state, and the second supply unit A process of transferring the raw material from the standby state to the operating state,
Determining whether the first supply unit in the dormant state has returned to a normal state, and determining that the first supply unit has returned to a normal state; A raw material supply method for a raw material supply apparatus, comprising:   The sheet manufacturing apparatus provided with the raw material supply apparatus as described in any one of Claims 1-8.

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