Apparatus for producing sheet, and method for controlling apparatus for producing sheet

Abstract

To solve a problem that an apparatus in which a float in water is used may conduct false detection.SOLUTION: An apparatus for producing a sheet includes: a processing part for producing a sheet by processing used paper; a humidification part for supplying a humidifying air to the processing part by a humidification medium; and a control part, where the humidification part includes a grip part for supporting the humidification medium, and a detection part for detecting the grip part, and the control part detects the grip part by the detection part.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a sheet manufacturing apparatus and a method for controlling the sheet manufacturing apparatus. [Background technology]

[0002] Conventionally, as shown in Patent Document 1, a humidifying device has been disclosed that can detect the storage of a detachable water tray using the movement of a float inside the water tray. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-26667 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned device may cause the float to stick due to impurities contained in the water, resulting in false detection. [Means for solving the problem]

[0005] The sheet manufacturing apparatus comprises a processing section that processes waste paper to produce sheets, a humidifying section that supplies humidified air to the processing section using a humidifying medium, and a control section, wherein the humidifying section has a handle section that supports the humidifying medium and a detection section that can detect the handle section, and the control section detects the handle section using the detection section.

[0006] A control method for a sheet manufacturing apparatus comprising a processing section that processes waste paper to manufacture sheets, a humidifying section that supplies humidified air to the processing section using a humidifying medium, and a display section, wherein the humidifying section has a handle section that supports the humidifying medium and a detection section that can detect the handle section, and when the detection section detects the handle section, the humidifying section supplies the humidified air to the processing section and the processing section manufactures the sheet, and when the detection section does not detect the handle section, the humidifying section does not supply the humidified air and the processing section does not manufacture the sheet, and the display section displays specified information. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a block diagram showing the configuration of a sheet manufacturing apparatus. [Figure 2] FIG. 2 is a perspective view showing the configuration of a humidifying unit. [Figure 3] FIG. 10 is a cross-sectional view showing the state of the detection unit when the disc unit is set in the case of the humidifier unit. [Figure 4] FIG. 10 is a cross-sectional view showing the state of the detection unit when the disc unit is pulled out from the case of the humidification unit. [Figure 5] FIG. 10 is a perspective view showing the disc unit removed from the storage section. [Figure 6] FIG. 10 is a perspective view showing the state in which the disc unit is accommodated in the accommodation portion. [Figure 7] 4 is a flowchart showing a control method of the sheet manufacturing apparatus. DETAILED DESCRIPTION OF THE INVENTION

[0008] 1. Structure of sheet manufacturing equipment The configuration of a sheet manufacturing apparatus 1 according to an embodiment will be described with reference to Fig. 1. Directions in each drawing will be described using a three-dimensional coordinate system. For ease of explanation, the positive direction of the Z axis will be referred to as the upward direction or simply "up," and the negative direction will be referred to as the downward direction or simply "down," the positive direction of the X axis will be referred to as the rightward direction or simply "right," and the negative direction will be referred to as the leftward direction or simply "left," and the positive direction of the Y axis will be referred to as the backward direction or simply "backward," and the negative direction will be referred to as the forward direction or simply "front."

[0009] 1, the sheet manufacturing apparatus 1 is a device that manufactures a cut-sheet shaped sheet S3 by a so-called dry method from a raw material G. The raw material G may contain various fibers, various fiber materials, and the like. In the embodiment, the dry method means that the production of the sheet S3 from the raw material G is not carried out in a liquid but in air such as the atmosphere. Note that the sheet manufacturing apparatus 1 is not limited to a dry method, and may be a so-called wet method.

[0010] In the following description, in the sheet manufacturing apparatus 1, the raw material G is assumed to move from upstream to downstream in the direction of the white arrow shown in Fig. 1 while sequentially changing form from web W to sheet S1, sheet S2, and sheet S3. Note that in the following description, each step of manufacturing the sheet S3 from the raw material G will be collectively referred to as "processing," and each component performing the processing will be collectively referred to as "processing section."

[0011] 1, the sheet manufacturing apparatus 1 is configured so as to be divisible into a plurality of units such as a first unit 101, a second unit 102, and a third unit 103. In each unit, processing sections are disposed in a distributed manner. Each unit is covered by a unit case (not shown). Casters (not shown) are attached to the bottom of each unit case. Each unit can be moved individually when separated. The sheet manufacturing apparatus 1 may be made up of two units, or may be made up of four or more units.

[0012] In the sheet manufacturing apparatus 1, the raw material G is subjected to processes such as fiberization in the first unit 101, and then conveyed to the second unit 102 via the pipe 24. The raw material G is made into a web W in the second unit 102, and then formed into a belt-shaped sheet S1. The belt-shaped sheet S1 is cut in the third unit 103, and after passing through the form of a sheet S2, is manufactured into a sheet S3 of a predetermined size.

[0013] First, a description will be given of the third unit 103. The third unit 103 includes a processing section on the most upstream side where the raw material G is input, and a processing section on the most downstream side where the sheet S3 is produced. Specifically, the third unit 103 has, on its upstream side, a buffer tank 13, a constant volume supply unit 15, a junction unit 17, and a pipe 21. The third unit 103 also has, on its downstream side, a first cutting unit 81, a second cutting unit 82, and a tray 91.

[0014] The raw material G is fed into the buffer tank 13 through the raw material inlet 11. The raw material G contains fibers such as cellulose, and is, for example, pieces of shredded waste paper. Note that the third unit 103 may be provided with a shredder, such as a shredding unit 95 (described later), upstream of the buffer tank 13 for shredding waste paper. The raw material G is temporarily stored in the buffer tank 13 and then transported to the constant quantity supply unit 15. As will be described later, humidified air is supplied from the humidifying unit 200 provided in the second unit 102 to the inside of the buffer tank 13 and the inside of the constant quantity supply unit 15.

[0015] The constant-quantity supply unit 15 has a measuring device 15a and a supply mechanism (not shown). The measuring device 15a measures the mass of the raw material G. The supply mechanism supplies the raw material G measured by the measuring device 15a to the downstream junction 17. That is, the constant-quantity supply unit 15 can measure the raw material G by a predetermined mass using the measuring device 15a and supply it to the downstream junction 17 by the supply mechanism.

[0016] The weighing device 15a is, for example, a physical sensor such as a load cell, a spring balance, a balance, etc. The predetermined mass measured by the weighing device 15a of the raw material G is, for example, about several grams to several tens of grams. The supply mechanism is, for example, a vibrating feeder. The measurement and supply of the raw material G in the constant quantity supply unit 15 is a batch process. That is, the supply of the raw material G from the constant quantity supply unit 15 to the confluence unit 17 is carried out intermittently.

[0017] The confluence section 17 can combine and mix the raw material G supplied from the quantitative supply section 15 with the fine fragments of the slit pieces R supplied from the shredding section 95. The slit pieces R and the shredding section 95 will be described later. The raw material G mixed with the fine fragments of the slit pieces R flows from the confluence section 17 into the pipe 21. The raw material G mixed with fine fragments of the slit pieces R is transported from the third unit 103 to the first unit 101 via a pipe 21 that crosses the second unit 102. A blower (not shown) is provided in the pipe 21. The raw material G is transported through the pipe 21 by the airflow generated by the blower.

[0018] Next, the first unit 101 will be described. In the first unit 101, from upstream to downstream, a defibrating unit 31, a separating unit 32, a piping 23, a mixing unit 33, and a piping 24 are arranged. In addition, the first unit 101 also has a collecting unit 35, a piping 25 connecting the separating unit 32 to the collecting unit 35, a compressor 38, and a power supply box 39 arranged therein.

[0019] The raw material G transported through the pipe 21 flows into the defibrating section 31 of the first unit 101. The defibrating section 31 defibrates the raw material G in a dry manner. The defibrating unit 31 includes, for example, a stator and a rotor (both not shown). The stator has a cylindrical inner surface. The rotor is installed inside the stator and rotates along the inner surface of the stator. The small pieces of raw material G are sandwiched between the inner surface of the stator and the rotor and are defibrated by the shear force generated between them. The fiber of the paper pieces and the like of the raw material G are defibrated by the defibrating unit 31 to become fibrous raw material G. The fibrous raw material G is transported to the separating unit 32.

[0020] The separation unit 32 removes components contained in the fibrous raw material G that are unnecessary for producing the sheet S3. Specifically, the separation unit 32 separates the raw material G into long fibers and short fibers. The short fibers are separated in the separation unit 32 because they may reduce the strength of the sheet S3. The separation unit 32 can also separate coloring materials and additives contained in the waste paper. The separation unit 32 can be, for example, a disk mesh system. Humidified air is supplied to the inside of the separation section 32 from the humidifying section 200 of the second unit 102. The raw material G is transported to the mixing section 33 via the pipe 23 after short fibers and the like are removed.

[0021] The short fibers and the like removed in the separation section 32 are discharged to the recovery section 35 via the pipe 25. The recovery section 35 includes a filter (not shown) and filters out unnecessary parts of the raw material G including the short fibers and the like. The compressor 38 generates compressed air. The filter of the recovery unit 35 may become clogged with fine particles contained in the unnecessary portion of the raw material G. The compressor 38 generates compressed air and blows it onto the filter, thereby blowing away the particles adhering thereto and cleaning the filter.

[0022] Returning to the explanation of the mixing unit 33, the mixing unit 33 adds a binder and the like to the raw material G containing long fibers and mixes them in the air to form a mixture. Although not shown in the figure, the mixing unit 33 includes a flow path for transporting the raw material G, a fan, a hopper, a supply pipe, a valve, and the like. The hopper communicates with the flow path for the raw material G via a supply pipe and supplies a binder such as starch or resin into the flow path. A valve is provided in the supply pipe between the hopper and the flow path to adjust the mass of binder supplied from the hopper to the flow path, thereby adjusting the mixing ratio of the raw material G and the binder. In addition to the configuration for supplying the binder as described above, the mixing unit 33 may also be configured to supply coloring materials, additives, etc. The fan in the mixer 33 generates an air current, and mixes the raw material G containing long fibers, the binder, etc. in the air. The mixture thus obtained flows from the mixer 33 into the pipe 24.

[0023] The power supply box 39 provided in the first unit 101 converts an external AC voltage such as 100 V or 200 V into a DC voltage such as 24 V or 48 V. The power supply box 39 supplies the converted DC voltage to each unit of the sheet manufacturing apparatus 1.

[0024] Next, the second unit 102 will be described. The second unit 102 has, arranged from upstream to downstream, a deposition unit 50, a first conveyance unit 61, a second conveyance unit 62, a mist generation unit 65, and a shaping unit 70. The second unit 102 also has a humidification unit 200, a control unit 300, and an input / output unit 310.

[0025] The deposition unit 50 has a drum member 53, a housing 51 that houses the drum member 53, a blade member 55 installed inside the drum member 53, and a suction unit 59. The deposition unit 50 deposits the mixture in the air to generate the web W. Specifically, the mixture is taken into the interior of drum member 53 through pipe 24. A first conveying unit 61 is disposed below deposition unit 50. First conveying unit 61 has a mesh belt 61a and five tension rollers that tension mesh belt 61a. Suction unit 59 is positioned opposite drum member 53 in the vertical direction, with mesh belt 61a sandwiched therebetween.

[0026] The blade member 55 is configured to rotate inside the drum member 53. The drum member 53 is configured to include a semi-cylindrical sieve. Specifically, the drum member 53 has a mesh that functions as a sieve in the lower part. The drum member 53 allows mixture particles that are smaller than the size of the mesh openings of the sieve to pass from the upper interior to the lower exterior. The mixture is taken into the interior of the drum member 53, and while being agitated by the rotating blade member 55, it is discharged to the outside through the mesh of the sieve of the drum member 53. Also, humidified air is supplied to the interior of the drum member 53 from the humidifying section 200.

[0027] The suction unit 59 is disposed below the drum member 53. The suction unit 59 sucks air from inside the housing 51 through a plurality of mesh-like holes in the mesh belt 61a. The plurality of holes in the mesh belt 61a allow air to pass through while blocking fibers, binders, and the like contained in the mixture. The mixture discharged outside the drum member 53 is sucked downward together with air by the suction unit 59. The suction unit 59 is configured, for example, with a suction device such as a blower. After being discharged into the air from the drum member 53 inside the housing 51, the mixture falls due to gravity and the suction force of the suction unit 59 and accumulates on the upper surface of the mesh belt 61a to form a strip-shaped web W.

[0028] The mesh belt 61a is an endless belt stretched over a plurality of tension rollers. The mesh belt 61a rotates counterclockwise as shown in FIG. 1 due to the rotation of the tension rollers. The mixture is deposited on the rotating mesh belt 61a, forming a web W. The web W contains a relatively large amount of air and is soft and inflated. The first conveying section 61 conveys the web W downstream by the mesh belt 61a.

[0029] As will be described later, the second conveying section 62 can convey the web W upward against gravity while adsorbing it. At this time, the second conveying section 62 can receive the web W downstream of the first conveying section 61 while peeling it off from the mesh belt 61a of the first conveying section 61. The second conveying section 62 is disposed above the web W and slightly upstream of the starting point of the return side of the mesh belt 61a. The right side of the second conveying section 62 and the left side of the mesh belt 61a are disposed so as to partially overlap in the vertical direction. As a result, the web W is smoothly transferred from a state in which its lower surface is in contact with the first conveyor section 61 to a state in which its upper surface is in contact with the second conveyor section 62.

[0030] The second conveying section 62 has a transport belt (not shown), multiple rollers, and a suction mechanism (a suction device). The transport belt has multiple holes for air passage. The transport belt is stretched over multiple rollers and rotates with the rotation of the rollers. The transport belt may be an endless mesh belt or may be configured to rotate around rollers. The second conveying section 62 can adsorb the upper surface of the web W to the lower surface of the transport belt by using negative pressure generated by the suction mechanism. The web W is conveyed to the downstream forming section 70 while being adsorbed to the transport belt against gravity so as not to fall.

[0031] The mist generating unit 65 is disposed below the second conveying unit 62 and is positioned opposite the web W conveyed by the second conveying unit 62. The mist generating unit 65 is, for example, an ultrasonic mist generating device. The mist generating unit 65 supplies mist M from below toward the web W conveyed by the second conveying unit 62 to humidify the web W. The air containing the mist M can pass from below to above the web W via the transport belt due to negative pressure created by the suction mechanism.

[0032] By humidifying the web W with the mist M, bonding between the binder contained in the web W and the fibers is promoted when the web W is formed in the downstream forming section 70, thereby improving the strength of the sheet S3. In addition, since the web W is humidified from below, droplets caused by the mist M do not fall onto the web W, preventing uneven moisture in the web W. Furthermore, since the web W is humidified from the side opposite to the surface that contacts the transport belt, the web W is prevented from sticking to the transport belt.

[0033] The forming unit 70 has a pair of heating rollers 71 and 72. Each of the pair of heating rollers 71 and 72 has a built-in electric heater and can heat the roller surface. The web W transported to the forming unit 70 by the second transport unit 62 is heated and pressurized by the heating rollers 71 and 72 of the forming unit 70. At this time, the air contained in the soft web W is reduced, and the fibers are bonded together by the binder, forming a belt-shaped sheet S1. The sheet S1 is transported to the third unit 103 by transport rollers or the like.

[0034] The humidifying unit 200 is disposed below the mist generating unit 65. The specific configuration of the humidifying unit 200 will be described later. The humidifying unit 200 supplies humidified air to various locations, such as the buffer tank 13, the constant volume supply unit 15, the separating unit 32, and the inside of the drum member 53, via multiple pipes (not shown). The humidified air suppresses the charging of fibers and particles of the raw material G, and can suppress adhesion due to static electricity.

[0035] The control unit 300 comprehensively controls each unit, such as the processing unit, that constitutes the sheet manufacturing apparatus 1. The control unit 300 includes a CPU (Central Processing Unit) and a memory. The CPU is also called a processor. The CPU reads and executes programs, such as firmware, stored in the memory.

[0036] The input / output unit 310 is a user interface, such as a touch panel display, and includes a display panel that serves as both a display unit and an output unit for displaying various information, and a detection panel that serves as an input unit. The detection panel is configured to be overlaid on the display panel, and detects the operation of a person's finger using a method such as a capacitance method, a resistive film method, or an optical method. In the input / output unit 310, the input unit may be a keyboard or a mouse, and the output unit may be a stand-type liquid crystal display.

[0037] The third unit 103 will now be described. The strip-shaped sheet S1 is transported to the first cutting section 81 of the third unit 103. The first cutting section 81 cuts the sheet S1 along a direction intersecting the transport direction, that is, along the front-to-rear direction in FIG. 1. The strip-shaped sheet S1 is cut into sheets S2 of a predetermined length by the first cutting section 81. The sheets S2 of the predetermined length are transported from the first cutting section 81 to the second cutting section 82.

[0038] The second cutting section 82 cuts both ends of the sheet S2 of a predetermined length along the conveyance direction, which is the left-right direction in Fig. 1. As a result, the sheet S2 of a predetermined length has both ends cut off to a predetermined width, and is formed into a sheet S3 of a predetermined size, such as A4 size or A3 size. Sheet S3 is conveyed obliquely upward and placed on tray 91. Sheet S3 can be used as a substitute for copy paper, for example. It should be noted that humidified air may be supplied from the humidifying section 200 to the inside of the first cutting section 81 and the inside of the second cutting section 82.

[0039] When both ends of the sheet S2 are cut in the second cutting section 82, slit pieces R, which are scraps, are generated. The slit pieces R are transported to the shredding section 95, which is a shredder. The shredding section 95 shreds the slit pieces R into small pieces and supplies them again to the junction 17. Note that a mechanism may be installed between the shredding section 95 and the junction 17 to weigh the small pieces of the slit pieces R and supply them to the junction 17.

[0040] 2. Humidification unit configuration The humidifying section 200 is, for example, an evaporative humidifying device. As shown in Fig. 2, the humidifying section 200 is configured to include a disk unit 210 having a disk D, which is a humidifying medium, a storage section 220 to which the disk unit 210 is detachably attached, and a case 230 to which the storage section 220 is movably attached. Fig. 2 shows a state in which the storage section 220, which stores the disk unit 210, is pulled out forward from the case 230. Note that attaching the disk unit 210 to the housing portion 220 is also referred to as "accommodating" or "setting." Similarly, attaching the housing portion 220 to the case 230 is also referred to as "accommodating" or "setting."

[0041] A water tub 222 capable of storing water WT is provided at the bottom of the receiving section 220. When the disc D of the disc unit 210 is received in the receiving section 220, the bottom side of the disc D can be immersed in the water WT in the water tub 222. When the storage section 220 is pushed backward and stored in the case 230, under the control of the control section 300, the disc D is rotated around the disc axis 215 described below by a motor (not shown), and water WT from the water tank 222 is applied to the entire surface of the disc D.

[0042] The fan box 250 has multiple fans that generate airflow. The fan box 250 draws in air DA from outside the humidifying unit 200. When the fan box 250 blows the air DA onto the surface of the disk D to which water WT has been applied, the water WT on the surface of the disk D evaporates to become humidified air WA. The humidified air WA is exhausted from the humidified air pipe 260 of the humidifying unit 200 and is supplied to each of the processing units of the sheet manufacturing apparatus 1 as described above. The number of humidified air pipes 260 may be configured to correspond to the number of processing units to which the humidified air WA is supplied. In this way, the humidifying section 200 can supply humidified air WA to the processing section of the sheet manufacturing apparatus 1 by means of the disks D which are humidifying media. The disc D may be configured as a roller-shaped disc, that is, a so-called roller disc, or may be configured as a plurality of thin discs arranged at predetermined intervals.

[0043] The disk unit 210 has a handle portion 211. As will be described later with reference to Fig. 5, the handle portion 211 has a handle 212 that can be grasped by an operator, a first support portion 213 that supports the handle 212 from the rear, and a second support portion 214 that supports the handle 212 from the front. The storage section 220 is also movable in the front-to-rear direction along the guide rails 224. An operator can place their hands in the recesses at the bottom of the cover 221 of the storage section 220 and pull it out forward. The storage section 220 moves forward while sliding along the guide rails 224. An operator can grasp the handle 211 of the disk unit 210 and remove it from the storage section 220.

[0044] The worker performs maintenance such as cleaning the disk D in the removed disk unit 210. After that, the worker stores the disk unit 210 in the storage section 220 and returns it to its original position, then grasps the cover 221 of the storage section 220 and pushes it backward. The storage section 220 moves backward while sliding along the guide rails 224. In this way, the storage section 220 is stored in the case 230.

[0045] When the accommodation portion 220 is accommodated in the case 230, the handle portion 211 of the disk unit 210 also moves rearward together with the accommodation portion 220. At this time, the handle portion 211 is inserted from the first support portion 213 while being guided by the guide hole 231 formed in the case 230. The detector 240 provided on the upper side of the case 230 can detect the handle 211 inserted into the guide hole 231 .

[0046] That is, when the disk unit 210 is attached to the accommodation section 220, the handle section 211 is also attached. In this state, when the accommodation section 220 moves rearward and is accommodated in the case 230, the detection section 240 can detect the handle section 211 of the disk unit 210. In this way, when the accommodation section 220 to which the handle section 211 of the disk unit 210 is attached is moved and accommodated in the case 230, the detection section 240 can detect the handle section 211.

[0047] The water tank 222 in the storage section 220 from which the disk unit 210 has been removed may be configured so that an operator can pour water WT into the water tank 222. Alternatively, a flexible tube such as a rubber tube may be connected to the water tank 222 so that water can be poured from outside. In this case, a valve or valve may be used to keep the water level in the water tank 222 constant.

[0048] FIG. 3 shows the positional relationship between the detector 240 and the disk unit 210 when the worker has pushed the accommodation section 220 rearward and set the accommodation section 220 in the case 230. The guide hole 231 of the case 230 is formed as a semi-cylindrical hole with an upper portion extending in the front-rear direction, and is shaped so that the handle portion 211 can be inserted from the first support portion 213 while being guided.

[0049] The detection unit 240 includes a sensor 241, a detection lever 242, and a shaft 243. The shaft 243 rotatably supports the detection lever 242. The sensor 241 can detect the position of the rotating detection lever 242. The sensor 241 may be any of a mechanical switch, a reflective or transmissive optical sensor, an ultrasonic sensor, etc. A magnet may be attached to the first support part 213 side of the handle part 211, and the sensor 241 may be a magnetic proximity sensor.

[0050] The worker pushes the storage section 220 rearward into the case 230. At this time, the handle section 211 of the disk unit 210 is inserted along the guide hole 231. Eventually, the upper part of the first support section 213 of the handle section 211 comes into contact with the lower part of the detection lever 242 of the detection section 240. Furthermore, as the handle portion 211 is inserted into the guide hole 231, the first support portion 213 of the handle portion 211 pushes up the detection lever 242 of the detection portion 240, causing it to rotate clockwise around the shaft 243.

[0051] 3, the sensor 241 can detect the detection lever 242 when it is pushed up and rotated clockwise. That is, the detection unit 240 detects the handle 211 of the disk unit 210. As a result, the control unit 300 can detect the handle portion 211 using the detection unit 240. Specifically, the control unit 300 can determine that the detection unit 240 has detected the handle portion 211 of the disk unit 210 in the position where it is set in the case 230.

[0052] 4 shows the detection unit 240 in a state where the worker has pulled the storage unit 220 forward from the case 230. At this time, the handle 211 of the disk unit 210 has been pulled forward along the guide hole 231 and is located away from the detection unit 240, and therefore is not shown in FIG. When the storage section 220 is pulled out, the first support section 213 of the handle section 211 of the disk unit 210 is released from contact with the detection lever 242 of the detection section 240. The detection lever 242 rotates counterclockwise around the shaft 243. The position of the detection lever 242 that has rotated counterclockwise is released from the sensor 241.

[0053] 4, the sensor 241 does not detect the detection lever 242 when it is rotated counterclockwise. That is, the sensor 241 of the detection section 240 does not detect the handle portion 211 of the disk unit 210. In other words, the detection section 240 detects that the handle portion 211 of the disk unit 210 is not present. As a result, the control unit 300 does not detect the handle portion 211 using the detection unit 240. Specifically, the control unit 300 can determine that the detection unit 240 has detected the handle portion 211 of the disk unit 210 in a position pulled out from the case 230.

[0054] Next, the configuration when the disk unit 210 is stored in the storage section 220 will be described with reference to FIGS. As shown in Fig. 5, a disc shaft 215 is passed through the center of the circle of disc D. The handle portion 211 has a handle 212 that can be grasped by an operator, and a first support portion 213 and a second support portion 214 at both ends of the handle 212. The first support portion 213 and the second support portion 214 rotatably support both ends of the disc shaft 215 below and on the opposite side to the handle 212. Thus, the humidifying unit 200 has a handle 211 that supports the disk D via the disk shaft 215 .

[0055] A first contact portion 214a and a second contact portion 214b that come into contact with a support plate 223 (described later) are provided on the left edge of the second support portion 214. The first contact portion 214a and the second contact portion 214b may have a convex shape that protrudes from the edge. An operator can attach or detach the disk unit 210 to or from the storage section 220 by grasping the handle 212 of the handle section 211 .

[0056] 6, the disk unit 210 is housed in the housing section 220 in a state where it is pulled out forward from the case 230. The lower part of the disk D of the disk unit 210 can be immersed in the water WT of the water tank 222. A support plate 223 capable of supporting the second support portion 214 of the disk unit 210 is provided on the front side of the accommodation portion 220. A recess with a central depression is formed on the top of the support plate 223. A first stopper 223a and a second stopper 223b are provided on the left side of this recess.

[0057] When the disk unit 210 is housed in the housing portion 220 , the lower portion of the second support portion 214 of the disk unit 210 is supported by the recessed portion of the support plate 223 of the housing portion 220 . In addition, the first contact portion 214a and the second contact portion 214b of the second support portion 214 may be provided on the right edge, and the first stopper 223a and the second stopper 223b of the support plate 223 may be provided on the right side of the recess of the support plate 223. In this way, the handle portion 211 is detachable from the accommodation portion 220. Specifically, the accommodation portion 220 allows the second support portion 214 of the handle portion 211 to be attached and detached by the support plate 223.

[0058] When the disk unit 210 is stored in the storage section 220, the first contact portion 214a and the second contact portion 214b of the second support portion 214 of the disk unit 210 engage with the first stopper 223a and the second stopper 223b of the support plate 223 of the storage section 220, respectively, and the handle portion 211 is positioned. The first support portion 213 of the disk unit 210 can also have the same configuration as the second support portion 214, and the rear side of the accommodating portion 220 can also be provided with a configuration similar to the support plate 223.

[0059] The positioned handle portion 211 is in a position where it can be inserted from the first support portion 213 toward the guide hole 231 of the case 230. As described above, the operator pushes the storage unit 220 rearward along the guide rails 224. At this time, the handle 211 can be inserted along the guide hole 231. When the storage unit 220 is stored in the case 230, the detection unit 240 can detect the handle 211 of the disk unit 210 in the storage unit 220.

[0060] 3. Method for controlling sheet manufacturing equipment An operator issues an instruction to manufacture the sheet S3 by operating the input unit of the input / output unit 310 of the sheet manufacturing apparatus 1. When the control unit 300 detects this instruction via the input / output unit 310, it starts control related to the manufacture of the sheet S3. 7, the control unit 300 determines whether the detection unit 240 detects the handle portion 211 of the disk unit 210 (S101). When the control unit 300 determines that the detection unit 240 has detected the handle portion 211 of the disk unit 210 (S101: YES), the control unit 300 causes the humidifier 200 to generate humidified air WA, which is supplied to the processing unit for humidification (S102).

[0061] At this time, specifically, in the humidifying section 200 , the sensor 241 detects the first support section 213 of the handle section 211 of the disc unit 210 housed in the housing section 220 . The control unit 300 can detect the handle 211 of the disk unit 210 using the detection unit 240. As a result, the control unit 300 can determine a number of events as follows.

[0062] That is, the control unit 300 can determine that the accommodation unit 220 has been accommodated and set in the case 230. The control unit 300 can also determine that the disk unit 210 and the disk D have been accommodated and set in the case 230. The control unit 300 can also determine that the cover 221 has been closed. The control unit 300 can determine that humidification can be performed using the humidifying unit 200 and that the sheet S3 can be produced by the processing unit.

[0063] As described above, the control unit 300 humidifies the air using the humidifier unit 200 (S102). Specifically, the control unit 300 drives the fan in the fan box 250 to draw in the air DA. The control unit 300 also drives a motor (not shown) provided in the humidifier unit 200 to rotate the disk shaft 215 of the disk unit 210, thereby rotating the disk D fixed to the disk shaft 215. As a result, the disk D is coated with the water WT from the water tank 222 while rotating. The airflow generated by the fan box 250 evaporates the water WT on the surface of the disk D, and the air DA becomes humidified air WA, which is supplied to the processing unit and can be humidified.

[0064] The control unit 300 controls the processing unit to manufacture the sheet S3 from the raw material G as described above (S103). In this way, when the detection unit 240 detects the handle portion 211, the control unit 300 can control the humidifying unit 200 to supply humidified air WA to the processing unit, and the processing unit to manufacture the sheet S3.

[0065] On the other hand, it is assumed that the control unit 300 determines that the detection unit 240 has not detected the handle 211 of the disk unit 210 (S101: NO). At this time, specifically, in the humidifying section 200, the sensor 241 does not detect the first support portion 213 of the handle portion 211 of the disc unit 210 housed in the housing section 220. As a result, the control section 300 can determine a number of events as follows.

[0066] That is, the control unit 300 can determine that the accommodation unit 220 is pulled out from the case 230 and is not set in the case 230. The control unit 300 can also determine that the disk unit 210 and the disk D are not stored in the case 230 and are not set. The control unit 300 can also determine that the cover 221 is open.

[0067] The control unit 300 can determine that the sheet S3 cannot be produced because the humidification cannot be performed using the humidification unit 200. The control unit 300 does not humidify the sheet S3 using the humidification unit 200, and does not produce the sheet S3 using the processing unit. In this way, if the detection unit 240 does not detect the handle unit 211, the control unit 300 controls the humidifier unit 200 not to supply the humidified air WA to the processing unit and the processing unit not to produce the sheet S3.

[0068] The control unit 300 displays predetermined information on the display unit of the input / output unit 310 (S104). The predetermined information includes at least one of first information indicating that the accommodation unit 220 is not accommodated in the case 230 and second information indicating that the disc D is not accommodated in the case 230 or the accommodation unit 220. The first information may be information instructing to store the storage section 220 in the case 230, information that the cover 221 is open, or information instructing to close the cover 221. The second information may be information instructing that the disk D be stored in the case 230 or the storage section 220. The second information may also be information relating to the disk unit 210 instead of the disk D, such as information indicating that the disk unit 210 is not stored.

[0069] The predetermined information may include at least one of information that humidification cannot be performed using the humidifying unit 200 and information that the sheet S3 cannot be manufactured. The control unit 300 may continue to display the predetermined information on the display unit of the input / output unit 310 until the detection unit 240 detects the disk unit 210 .

[0070] As described above, the sheet manufacturing apparatus 1 according to the embodiment includes a processing section that processes raw material G such as waste paper to produce a sheet S3, a humidifying section 200 that supplies humidified air WA to the processing section using a disk D that is a humidifying medium, and a control section 300. The humidifying section 200 has a handle section 211 that supports the disk D and a detection section 240 that can detect the handle section 211, and the control section 300 detects the handle section 211 using the detection section 240. With this configuration, the detection unit 240 is not immersed in the water WT in the water tank 222. The detection unit 240 is not affected by impurities contained in the water WT, and can perform correct detection. The humidifying unit 200 can supply humidified air to predetermined processing units such as the buffer tank 13, the constant volume supply unit 15, the separating unit 32, and the drum member 53.

[0071] Furthermore, by detecting the handle portion 211 with the detection portion 240, the control portion 300 can determine a number of events as follows. That is, the control unit 300 can determine that the accommodation unit 220 has been accommodated in the case 230. The control unit 300 can also determine that the disc unit 210 and disc D have been accommodated in the case 230. The control unit 300 can determine that the cover 221 has been closed. The control unit 300 can determine that humidification can be performed using the humidifying unit 200 and that the sheet S3 can be manufactured by the processing unit.

[0072] These embodiments have been described in detail above with reference to the drawings, but the specific configurations are not limited to these embodiments, and may be changed, replaced, deleted, etc. as long as they do not deviate from the gist of the present invention. [Explanation of symbols]

[0073] 1...sheet manufacturing apparatus, 200...humidifying section, 210...disk unit, 211...handle section, 220...storage section, 230...case, 240...detection section, 300...control section, 310...input / output section, D...disk, G...raw material, S1, S2, S3...sheet, WA...humidified air.

Claims

1. a processing section for processing waste paper to produce sheets; a humidifying unit that supplies humidified air to the processing unit using a humidifying medium; a control unit, the humidifying unit has a handle that supports the humidifying medium and a detection unit that can detect the handle; The control unit detects the handle portion using the detection unit.

2. the humidifying unit has a case, and the detecting unit is provided in the case; the humidifying unit has a housing portion to which the handle portion can be attached and detached, the housing portion is attached movably with respect to the case, The sheet manufacturing apparatus according to claim 1 , wherein the detection unit detects the handle when the storage unit to which the handle is attached is moved and stored in the case.

3. A display unit is provided, The control unit When the handle portion is detected by the detection unit, the humidifying unit supplies the humidified air to the processing unit, and the processing unit produces the sheet.

2. The sheet manufacturing apparatus according to claim 1, wherein, when the handle portion is not detected by the detection unit, the humidifying unit does not supply the humidified air, and the processing unit does not manufacture the sheet, and the display unit displays predetermined information.

4. the humidifying unit has a case, and the detecting unit is provided in the case; the humidifying unit has a housing portion to which the handle portion can be attached and detached, the housing portion is attached movably with respect to the case, 4. The sheet manufacturing apparatus according to claim 3, wherein the predetermined information includes at least one of first information indicating that the storage section is not stored in the case and second information indicating that the humidifying medium is not stored in the case.

5. a processing section for processing waste paper to produce sheets; a humidifying unit that supplies humidified air to the processing unit using a humidifying medium; A control method for a sheet manufacturing apparatus including a display unit, the humidifying unit has a handle that supports the humidifying medium and a detection unit that can detect the handle, When the handle portion is detected by the detection unit, the humidifying unit supplies the humidified air to the processing unit, and the processing unit produces the sheet. A control method for a sheet manufacturing apparatus, wherein, if the handle portion is not detected by the detection unit, the humidifying unit does not supply the humidified air, and the processing unit does not manufacture the sheet, and the display unit displays specified information.

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