JP2016055617A - Sheet manufacturing apparatus and sheet manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet manufacturing apparatus capable of manufacturing a sheet having a desired characteristic.SOLUTION: A sheet manufacturing apparatus 100 includes a manufacturing part for manufacturing a sheet, and a supply part 10 for supplying a loaded object T loaded thereon to the manufacturing part, and further has a determination part 145 for determining whether manufacture of the sheet is to be started or not, in the state where the loaded object T is loaded on the supply part 10.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a sheet manufacturing apparatus and a sheet manufacturing method.

  Conventionally, a sheet manufacturing apparatus that manufactures a sheet using waste paper as a raw material is known (see, for example, Patent Document 1). In such a sheet manufacturing apparatus, when used paper is supplied from a supply unit (supply unit), it is common to detect whether the used paper is in the supply unit (see, for example, Patent Document 2).

JP 2012-144819 A JP 2011-157657 A

  In the sheet manufacturing apparatus as described above, in order to stabilize the basis weight of the manufactured sheet, it is preferable to stabilize the amount of raw material (for example, defibrated waste paper) flowing through each part of the sheet manufacturing apparatus. However, for example, since the amount of raw material gradually increases from the start of the supply of used paper to about 20 sheets (the number of supplied used paper is about 20 sheets), the amount of raw material flowing through each part of the sheet manufacturing apparatus Not stable. In this state, for example, even if an attempt is made to manufacture a sheet by stacking 15 used paper sheets on the supply unit, a sheet having desired characteristics may not be manufactured.

  One of the objects according to some aspects of the present invention is to provide a manufacturing apparatus capable of manufacturing a sheet having desired characteristics. Another object of some aspects of the present invention is to provide a sheet manufacturing method capable of manufacturing a sheet having desired characteristics.

  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 aspects or application examples.

One aspect of the sheet manufacturing apparatus according to the present invention is:
A manufacturing department for manufacturing sheets;
A supply unit for supplying the mounted product to the manufacturing unit;
With
A determination unit configured to determine whether or not to start manufacturing the sheet in a state where the load is mounted on the supply unit;

  In such a sheet manufacturing apparatus, it can be determined that the manufacturing of the sheet is not started in a state where the load is mounted on the stacking unit of the supply unit. Therefore, the sheet manufacturing apparatus can suppress the inability to manufacture a sheet having desired characteristics. Therefore, the sheet manufacturing apparatus can manufacture a sheet having desired characteristics.

In the sheet manufacturing apparatus according to the present invention,
The load is equal to or less than a predetermined ratio with respect to the maximum load amount of the supply unit;
You may have the detection part which can be recognized by the some point below the predetermined ratio.

  In such a sheet manufacturing apparatus, it can be determined that the manufacture of the sheet is not started when it is recognized that the load is equal to or less than a predetermined ratio. For this reason, it can be known that a sheet (for example, having a stable basis weight) cannot be manufactured stably.

In the sheet manufacturing apparatus according to the present invention,
The determination unit may determine that the manufacture of the sheet is not started in the state where the mounted object is mounted on the supply unit, at the time of the manufacture start command of the sheet or before the start of manufacture.

  In such a sheet manufacturing apparatus, it can be determined that the sheet is not manufactured at the time of starting the manufacturing of the sheet or before the manufacturing is started. Therefore, since the production is not interrupted immediately after the start of production (for example, after the crushing portion crushes the load), it is possible to prevent the load from being wasted.

In the sheet manufacturing apparatus according to the present invention,
The supply unit supplies raw material in the form of a single sheet,
The manufacturing unit may include a crushing unit that crushes the raw material.

  In such a sheet manufacturing apparatus, before the crushing unit crushes the raw material, the determination unit determines whether to start manufacturing the sheet. For example, if it is determined after the crushing unit crushes the raw material, it may be difficult for the user to recognize how far the raw material flows in each part of the sheet manufacturing apparatus. Such a sheet manufacturing apparatus can avoid the above problems.

One aspect of the sheet manufacturing method according to the present invention is:
A step of determining whether or not to start production of the sheet by the determination unit in a state where the load mounted on the supply unit is mounted; and
Supplying the mounted load to the manufacturing department;
A step of manufacturing a sheet using the supplied load,
Is provided.

  In such a sheet manufacturing method, a sheet having desired characteristics can be manufactured.

One aspect of the sheet manufacturing apparatus according to the present invention is:
A manufacturing department for manufacturing sheets;
A supply unit for supplying the mounted product to the manufacturing unit;
A headquarters commanding the manufacture of the sheet;
With
When the load is mounted on the supply unit, the load may not be supplied when a manufacturing command is received from the command unit.

  In the conventional sheet manufacturing apparatus, the mounted object is not supplied in a state where the mounted object is mounted. On the other hand, in the sheet manufacturing apparatus of the present application, there is a case where the mounted material is not supplied. Therefore, the sheet manufacturing apparatus of the present application can manufacture a sheet having desired characteristics.

In the sheet manufacturing apparatus according to the present invention,
You may have the output part which performs the output to the effect of not supplying the said load.

  In such a sheet manufacturing apparatus, the user can know that the supply unit does not supply the load.

In the sheet manufacturing apparatus according to the present invention,
You may have the output part which performs the output to the effect of starting manufacture of the said sheet | seat, after mounting how many sheets of said mounting objects.

  In such a sheet manufacturing apparatus, the user can know how many sheets are to be loaded before sheet manufacturing starts.

In the sheet manufacturing apparatus according to the present invention,
The output unit may perform an output indicating that supply of the mounted object is started after the number of the mounted objects is further mounted.

  In such a sheet manufacturing apparatus, the user can know how many sheets are to be loaded before supply of the loaded objects is started.

In the sheet manufacturing apparatus according to the present invention,
There may be a statement in the supply section indicating an indication of a load amount of the load necessary to start manufacturing the sheet.

  In such a sheet manufacturing apparatus, the user can know the load amount of the load necessary to start manufacturing the sheet.

In the sheet manufacturing apparatus according to the present invention,
There may be a statement that the supply unit indicates a guideline of the load amount of the load necessary to start the supply of the load.

  In such a sheet manufacturing apparatus, the user can know the load amount of the load necessary for starting the supply of the load.

The figure which shows typically the sheet manufacturing apparatus which concerns on 1st Embodiment. The top view which shows typically the sheet manufacturing apparatus which concerns on 1st Embodiment. The figure for demonstrating the supply part and control part of the sheet manufacturing apparatus which concern on 1st Embodiment. The figure for demonstrating the supply part and control part of the sheet manufacturing apparatus which concern on 1st Embodiment. The flowchart for demonstrating the control processing of the control part of the sheet manufacturing apparatus which concerns on 1st Embodiment. The figure for demonstrating the supply part and control part of the sheet manufacturing apparatus which concern on 2nd Embodiment. The top view which shows typically the sheet manufacturing apparatus which concerns on 3rd Embodiment. The figure for demonstrating the supply part and control part of the sheet manufacturing apparatus which concern on 3rd Embodiment. The figure for demonstrating the supply part and control part of the sheet manufacturing apparatus which concern on 3rd Embodiment. The figure for demonstrating the supply part and control part of the sheet manufacturing apparatus which concern on 3rd Embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The embodiments described below do not unduly limit the contents of the present invention described in the claims. In addition, not all of the configurations described below are essential constituent requirements of the present invention.

(First embodiment)
1. Sheet manufacturing apparatus 1.1. Configuration First, a sheet manufacturing apparatus according to a first embodiment will be described with reference to the drawings. FIG. 1 is a diagram schematically illustrating a sheet manufacturing apparatus 100 according to the first embodiment.

  As shown in FIG. 1, the sheet manufacturing apparatus 100 includes a supply unit 10, a manufacturing unit 102, and a control unit 140. The manufacturing unit 102 manufactures a sheet. The manufacturing unit 102 includes a crushing unit 12, a defibrating unit 20, a classifying unit 30, a sorting unit 40, a mixing unit 50, a depositing unit 60, a web forming unit 70, a sheet forming unit 80, and a cutting unit. Part 90.

  The supply unit 10 supplies raw materials to the crushing unit 12. The supply unit 10 is, for example, an automatic input unit for continuously supplying raw materials to the crushing unit 12. The raw material supplied by the supply part 10 contains fibers, such as a used paper and a pulp sheet, for example.

  The detailed configuration of the supply unit 10 will be described later. Details of the control unit 140 that controls the supply unit 10 will be described later.

  The crushing unit 12 cuts the raw material supplied by the supply unit 10 into air 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 defibrates in a dry manner in the atmosphere (in the air). Specifically, an impeller mill is used as the defibrating unit 20. The defibrating unit 20 has a function of generating an air flow that sucks the raw material and discharges the defibrated material. Thereby, the defibrating unit 20 can suck the raw material together with the airflow from the introduction port 22 by the airflow generated by itself, defibrate it, and transport it to the discharge port 24. The defibrated material that has passed through the defibrating unit 20 is transferred to the classifying unit 30 via the tube 3.

  The classifying unit 30 classifies the defibrated material that has passed through the defibrating unit 20. Specifically, the classifying unit 30 separates and removes relatively small ones or low density ones (resin particles, colorants, additives, etc.) among the defibrated materials. Thereby, the ratio for which the fiber which is a comparatively large or high density thing among defibrated materials can be raised.

  As the classification unit 30, an airflow classifier is used. The airflow classifier generates a swirling airflow and separates it according to the difference in centrifugal force depending on the size and density of what is classified, and the classification point can be adjusted by adjusting the speed and centrifugal force of the airflow. it can. Specifically, a cyclone, an elbow jet, an eddy classifier, or the like is used as the classification unit 30. In particular, a cyclone as shown in the figure can be suitably used as the classifying unit 30 because of its simple structure.

  The classification unit 30 includes, for example, an inlet 31, a cylindrical part 32 to which the inlet 31 is connected, an inverted conical part 33 that is located below the cylindrical part 32 and continues to the cylindrical part 32, and an inverted conical part 33. The lower discharge port 34 provided in the lower center of the upper portion and the upper discharge port 35 provided in the upper center of the cylindrical portion 32 are provided.

  In the classification unit 30, the airflow on which the defibrated material introduced from the introduction port 31 is changed into a circumferential motion in the cylindrical unit 32. As a result, centrifugal force is applied to the introduced defibrated material, and the classification unit 30 includes fibers (first classified material) larger than the resin particles and ink particles in the defibrated material, and the defibrated material. Among them, it can be separated into resin particles, colorants, additives, etc. (second classified product) that are smaller than the fibers and have a low density. The first classified product is discharged from the lower discharge port 34 and is introduced into the sorting unit 40 through the pipe 4. On the other hand, the second classified product is discharged from the upper discharge port 35 to the receiving portion 36 through the pipe 5.

  The sorting unit 40 introduces the first classified product that has passed through the classifying unit 30 from the introduction port 42 and sorts the first classified product according to the length of the fiber. As the selection unit 40, for example, a sieve is used. The sorting unit 40 has a net (filter, screen), and includes fibers or particles (those that pass through the net, the first sort) that are smaller than the mesh size included in the first classification, Fibers that are larger than the size of the mesh, undefibrated pieces, and lumps (those that do not pass through the net, second selection) can be separated. For example, the first selection is received by the hopper 6 and then transferred to the mixing unit 50 via the pipe 7. The second selected item is returned to the defibrating unit 20 from the discharge port 44 through the pipe 8. Specifically, the sorting unit 40 is a cylindrical sieve that can be rotated by a motor. For the net of the selection 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 mixing part 50 mixes the 1st selection thing which passed the selection part 40, 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 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-agglomeration material, a flame retardant for making the fiber and the like difficult to burn may be included. The mixture (mixture of the first classified product and the additive) that has passed through the mixing unit 50 is transferred to the deposition unit 60 via the pipe 54.

  The 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 lowers it while dispersing it in the air. Furthermore, when the additive resin supplied from the additive supply unit 52 is fibrous, the deposition unit 60 loosens the entangled resin. Thereby, the deposition unit 60 can deposit the mixture on the web forming unit 70 with good uniformity.

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

  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 soft and swelled state containing a large amount of air is formed by passing through the depositing unit 60 and the web forming unit 70 (web forming step). 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.

  As the sheet forming unit 80, for example, a heating roller (heater roller), a hot press molding machine, a hot plate, a hot air blower, an infrared heater, or a flash fixing device is used. In the illustrated example, the sheet forming unit 80 includes a first binding unit 82 and a second binding unit 84, and the binding units 82 and 84 each include a pair of heating rollers 86. Since the binding portions 82 and 84 are configured as the heating roller 86, the web W is continuously conveyed as compared with the case where the binding portions 82 and 84 are configured as a plate-like press device (flat plate press device). Sheet S can be formed. The number of 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.

1.2. Supply Unit The supply unit 10 of the sheet manufacturing apparatus 100 will be described in detail. FIG. 2 is a diagram schematically showing the supply unit 10. 3 and 4 are diagrams schematically showing the supply unit 10. For the sake of convenience, in FIG. 2, parts other than the stacking unit 110, the sensors 120, 122, 124 and the detection target units 130, 132 are omitted. Moreover, the stacking unit 110, the sensors 120 and 122, and the first detection target unit 130 illustrated in FIG. 3 schematically illustrate a cross section taken along line III-III in FIG. Moreover, the stacking unit 110, the third sensor 124, and the second detection target unit 132 illustrated in FIG. 4 schematically illustrate a cross section taken along line IV-IV in FIG. 3 and 4 also show functional block diagrams of the control unit 140. 3 shows a state where the second sensor 122 is detecting the first detection target portion 130, and FIG. 4 shows a state where the third sensor 124 is detecting the second detection target portion 132. Yes.

  As shown in FIGS. 2 to 4, the supply unit 10 supplies the mounted product (raw material) T to the manufacturing unit 102. Specifically, the supply unit 10 supplies a cut sheet-shaped load (raw material) T to the crushing unit 12. The crushing unit 12 crushes the load T supplied by the supply unit 10. The single-cut form refers to a state in which sheets are cut one by one into A3 size, A4 size, letter size, etc., as in commercially available printer paper. Although not shown, the supply unit 10 may supply roll-shaped pulp to the crushing unit 12. The load T is mounted on the loading unit 110 by the user.

  The supply unit 10 includes a stacking unit 110 inside the housing 116. The loaded object T is loaded (loaded) on the loading unit 110. The pick-up roller 113 is in contact with the uppermost load T among the loads T. As the pickup roller 113 rotates, the uppermost loaded object T is conveyed to the right side of FIG. The transported load T is transported to the crushing unit 12 from the take-out port 118 provided in the housing 116 by the delivery roller 114. Each time one or more mounted objects T are conveyed by the pickup roller 113, the stacking unit 110 moves up. Alternatively, the position of the stacking unit 110 can move up and down according to the position of the pickup roller 113 in the vertical direction. Thereby, the position of the stacking unit 110 becomes a position according to the amount of the load T. The position of the pickup roller 113 is substantially constant with respect to the delivery roller 114. In the illustrated example, the stacking unit 110 is connected to the vertical drive shaft unit 112, and the stacking unit 110 can move up and down as the vertical drive shaft unit 112 rotates. The vertical drive shaft 112 is rotated by driving a motor 115 connected to the vertical drive shaft 112. For example, a lead screw is used as the vertical drive shaft portion 112.

  The form of the supply unit 10 is not particularly limited as long as the mounted object T can be supplied to the manufacturing unit 102. For example, instead of the vertical drive shaft portion 112, a spring that urges the stacking portion 110 toward the pickup roller 113 may be provided.

  As shown in FIGS. 2 to 4, the supply unit 10 includes sensors 120, 122, and 124 and detection target units 130 and 132.

  The first detection target part 130 is provided on the side part (end part) 111 a of the stacking part 110. The first sensor 120 and the second sensor 122 detect the first detection target unit 130. The first sensor 120 is provided at a position facing the first detection target unit 130 in a state where the load T is not mounted on the stacking unit 110. That is, a state where there is no load on the stacking unit 110 (paper out state) is detected. In addition, the second sensor 122 is provided at a position facing the first detection target unit 130 in a state where the loaded object T can be supplied and the stacking unit 110 is located at the lowest position. That is, the state (full load state) in which the maximum load amount of the load T is mounted on the stacking unit 110 is detected.

  The third sensor 124 detects the second detection target part 132. The second detection target part 132 is provided on the side part 111b of the stacking part 110, protrudes upward from the stacking part 110, and has a predetermined length. The predetermined length corresponds to the thickness of the load T that is 1/100 of the maximum load amount in the stacking unit 110. And the 3rd sensor 124 is arrange | positioned in the position which detects the 2nd detection target part 132, when the load T in the loading part 110 is 1/100 or less of the maximum load. As shown in FIG. 2, the side portion 111b is, for example, a side surface of the stacking portion 110 connected to the side portion 111a (specifically, orthogonal). In addition, 1/100 of the maximum load amount is the minimum value of the total weight of the load T that can stabilize the amount of the raw material flowing through each part (the defibrating unit 20 and the deposition unit 60) of the sheet manufacturing apparatus 100. . The number of 1/100 is an example, and is a value predetermined by each sheet manufacturing apparatus. That is, the third sensor 124 detects that the load T is equal to or less than a predetermined ratio (for example, 1/100) with respect to the maximum load amount of the supply unit 10. And the 3rd sensor 124 can detect in the whole range below a predetermined ratio. That is, the third sensor 124 is a detection unit that can recognize that the load T is equal to or less than a predetermined ratio with respect to the maximum load amount of the supply unit 10 at a plurality of points equal to or less than a predetermined ratio. Equivalent to. Although it can be said that the first sensor 120 also detects 1/100 or less of the maximum mounting amount, it differs from the third sensor 124 in that it detects one point that is 1/100 or less.

  The first sensor 120, the second sensor 122, and the third sensor 124 are provided on the inner wall of the housing 116. The first sensor 120 and the third sensor 124 are at the same position in the vertical direction, and the second sensor 122 is positioned below the first sensor 120 in the vertical direction. As shown in FIG. 2, the second sensor 122 is provided so as to overlap the first sensor 120 in a plan view. As shown in FIG. 2, the third sensor 124 is provided at a position that does not overlap the sensors 120 and 122 in plan view. Similarly, the 1st detection object part 130 and the 2nd detection object part 132 are provided in the position which does not overlap. The second detection target portion 132 is provided at a position where it does not come into contact with the load T when the load T is transported.

  The first to third sensors 120, 122, and 124 are, for example, sensors that emit light toward the detection target units 130 and 132 and detect reflected light from the detection target units 130 and 132, respectively. The forms of the first to third sensors 120, 122, and 124 may be other known forms as long as the detection target portions 130 and 132 can be detected, and are not particularly limited. Further, the materials and shapes of the detection target portions 130 and 132 are not particularly limited as long as they can be detection targets of the first to third sensors 120, 122, and 124. For example, as shown in FIGS. 3 and 4, the position of the stacking unit 110 can also be detected by an encoder 119 that detects the number of rotations of the motor 115. Further, detection is possible even when the length of the detection target portion 132 is shortened and a plurality of third sensors 124 are used. In these cases, it is not possible to detect the entire range below a predetermined ratio, and a plurality of points below a predetermined ratio are detected. In any case, it is different from the first sensor 120 that detects only one point. In addition, you may detect the part except the whole range below a predetermined ratio. In this case, when it is not detected, it can be recognized although it is not directly detected that the ratio is equal to or less than a predetermined ratio. As described above, the detection unit only needs to be able to recognize a plurality of points that are equal to or less than a predetermined ratio, and preferably it is possible to detect all ranges that are equal to or less than a predetermined ratio.

  Here, the “maximum load amount” is the total weight of the load T. When the basis weight of the load T is known, the “maximum load amount” may be the number or thickness of the load T in the above state.

1.3. As shown in FIG. 3, the control unit 140 includes an operation unit (command unit) 141, an output unit 142, a storage unit 143, a storage medium 144, and a processing unit (determination unit) 145. ing.

  The operation unit 141 performs a process of acquiring an operation signal corresponding to an operation by the user and sending a signal to the processing unit 145. The operation unit 141 can instruct the processing unit 145 to manufacture the sheet S. The operation unit 141 is, for example, a button, a key, a touch panel display, a microphone, or the like.

  The output unit 142 displays the processing result of the processing unit 145 based on the signal input from the processing unit 145. For example, the output unit 142 displays the processing result of the processing unit 145 in characters. The output unit 142 is, for example, an LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube), or a touch panel display. Note that the output unit 142 may output the processing result of the processing unit 145 by sound.

  The storage unit 143 stores programs, data, and the like for the processing unit 145 to perform various control processes. The storage unit 143 is further used as a work area of the processing unit 145. The operation signal input from the operation unit 141, the program and data read from the storage medium 144, and the calculation executed by the processing unit 145 according to various programs. The results are temporarily stored.

  The storage medium 144 is a computer-readable storage medium for storing various application programs and data. The program may be distributed from an information storage medium included in the host device (server) to the storage medium 144 (storage unit 143) via a network or the like. The storage medium 144 may also function as a storage unit that stores data that needs long-term storage among data generated by the processing of the processing unit 145. The storage medium 144 is realized by, for example, an optical disk (CD, DVD), a magneto-optical disk (MO), a magnetic disk, a hard disk, a magnetic tape, or a memory (ROM, flash memory, etc.).

  The processing unit 145 performs various control processes in accordance with programs stored in the storage unit 143 and programs stored in the storage medium 144. For example, the processing unit 145 performs the following control processing. The function of the processing unit 145 can be realized by hardware such as various processors (CPU, DSP, etc.), ASIC (gate array, etc.), and programs. Note that at least a part of the processing unit 145 may be realized by hardware (dedicated circuit).

  Further, the processing unit 145 determines the status of the load T on the stacking unit 110 from the detection results of the first to third sensors 120, 122, and 124. When the first sensor 120 detects the first detection target portion 130, it is determined that the load T is not mounted on the stacking portion 110. When the second sensor 122 detects the first detection target unit 130, it is determined that the maximum load amount of the load T is mounted on the stacking unit 110. When the third sensor 124 detects the second detection target portion 132, it is determined that the load T having a predetermined weight or more is not mounted on the stacking portion 110.

  FIG. 5 is a flowchart for explaining the control process of the control unit 140.

  For example, when the user requests a process for manufacturing the sheet S through the operation unit 141 (for example, by pressing a button), the processing unit 145 receives the operation signal from the operation unit 141 and starts the process. To do. Note that the user may set a timer in advance, and the processing unit 145 may start processing upon receiving a signal from the timer.

  First, based on the first sensor 120, the processing unit 145 determines whether or not the load T is mounted on the stacking unit 110 of the supply unit 10 (S148). When it is determined that there is a load T (when the first sensor 120 does not detect the first detection target unit 130, in the case of No in step S148), the process proceeds to step S150. If it is determined that there is no load T (if the first sensor 120 detects the first detection target unit 130, if Yes in step S148), the process proceeds to step 154. Thereby, the processing unit 145 can determine whether or not to start the production of the sheet S in a state where the load T is mounted on the supply unit 10.

  In step S150, the processing unit 145 determines whether the mounting amount (for example, weight) of the load T mounted on the stacking unit 110 is equal to or less than a predetermined ratio (for example, 1/100 or less) with respect to the maximum mounting amount. Make a decision. Specifically, if the third sensor 124 detects the second detection target unit 132, the processing unit 145 determines that the total weight of the mounted object T is 1/100 or less of the maximum mounted amount (determined as Yes). Then, the process proceeds to step S154. If the third sensor 124 does not detect the second detection target portion 132, it is determined that the total weight of the load T is greater than 1/100 of the maximum load (determined No), and the process proceeds to step S152.

When the processing unit 145 determines that the total weight of the load T is greater than 1/100 of the maximum equal discretion (No in step S150), the processing unit 145 outputs a signal for manufacturing the sheet S, It outputs to each part of the sheet manufacturing apparatus 100 (S152). As one operation of sheet manufacturing, the processing unit 145 outputs a signal for driving the motor 115 and the rollers 113 and 114 of the supply unit 10 to the supply unit 10. In response to the signal, the supply unit 10 supplies the load T to the crushing unit 12, and the manufacturing unit 102 manufactures the sheet S using the supplied load T. When the manufacture of the sheet is completed, the processing unit 145 ends the process.

  In step S154, the processing unit 145 outputs, for example, a signal for displaying that the load T is not supplied to the output unit 142. The output unit 142 receives a signal from the processing unit 145 and displays that the mounted object T is not supplied. Specifically, the output unit 142 displays that the load T is not supplied by blinking or lighting of a lamp indicating an error, or by characters or drawings. The output unit 142 may notify the user that the load T is not supplied by sound. The indication that the load T is not supplied includes a reason such as the amount of the load T being insufficient. Thereby, the user can grasp that the load T is not supplied. After that, the user replenishes the supply unit T with the load T, requests the process for manufacturing the sheet S again through the operation unit 141 (for example, by pressing a button), and the process starts.

  In step S154, the load T is not supplied, and the sheet S is not manufactured. For this reason, the processing unit 145 determines whether to manufacture the sheet S (step S152) or not (step S154) before step S152 (before starting the manufacture of the sheet S). Further, it can be said that the processing unit 145 determines whether or not to manufacture the sheet S at the time of the manufacturing start command for the sheet S (when an operation signal is received from the operation unit 141). Further, after confirming that there is a load T in step S148, it is determined in step S150 whether or not the sheet S is to be manufactured. That is, it is determined whether or not to start manufacturing the sheet in a state where the load T is mounted on the supply unit 10. Further, in the sheet manufacturing apparatus 100, when the load T is mounted on the supply unit 10, the load T may not be supplied when a manufacturing command is received from the operation unit 141 (the processing unit 145 may not supply the load T). In some cases, it is determined that the production is not started).

  Note that after determining that the manufacturing of the sheet S is once started, the processing unit 145 does not determine that the manufacturing is stopped even if the third sensor 124 detects the second detection target portion 132. That is, the processing unit 145 does not stop outputting signals for driving the motor 115 and the rollers 113 and 114 of the supply unit 10. On the other hand, even after it is determined that the production of the sheet S is once started, the processing unit 145 determines that the production is stopped when the second sensor 122 detects the first detection target unit 130. That is, the processing unit 145 may stop outputting signals for driving the motor 115 and the rollers 113 and 114 of the supply unit 10. From the above, it can be said that the criterion for determining not to manufacture is different between before starting the manufacture of the sheet and during the manufacture.

  The sheet manufacturing apparatus 100 has the following features, for example.

The sheet manufacturing apparatus 100 includes a manufacturing unit 102 that manufactures a sheet, and a supply unit 10 that supplies the mounted product T to the manufacturing unit 102, and in the state where the mounted product T is mounted on the supply unit 10. And a processing unit (determination unit) 145 that determines (determines) whether or not to start manufacturing the sheet S. In a conventional sheet manufacturing apparatus, it is determined whether or not a load is mounted. For this reason, it is only possible to start manufacturing the sheet if the load is mounted, and not to start manufacturing the sheet if the load is not mounted. That is, in the conventional sheet manufacturing apparatus, it is not determined that the sheet manufacturing is not started in a state where the mounted object is mounted. On the other hand, in the sheet manufacturing apparatus 100 of the present invention, it can be determined that the manufacturing of the sheet S is not started in the state where the load T is mounted on the stacking unit 110 of the supply unit 10. Therefore, the sheet manufacturing apparatus 100 can manufacture a sheet S having a stable basis weight. Therefore, in the sheet manufacturing apparatus 100, it can suppress that the sheet | seat which has a desired characteristic cannot be manufactured. Therefore, the sheet manufacturing apparatus 100 can manufacture the sheet S having desired characteristics.

  In the sheet manufacturing apparatus 100, a detection unit (third that can recognize at a plurality of points below the predetermined ratio that the raw material T is equal to or less than a predetermined ratio with respect to the maximum load amount of the supply unit 10. Sensor 124). In a conventional sheet manufacturing apparatus, it is determined that no sheet is manufactured by detecting the absence of paper. In the sheet manufacturing apparatus 100 of the present invention, not only when there is no waste paper, but also when the raw material T is equal to or less than a predetermined ratio (1/100 of the maximum loading amount), it is stable (for example, having a stable basis weight). It is possible to know that the sheet S cannot be manufactured. Therefore, the production of the sheet S can be determined when the ratio is greater than a predetermined ratio, and the sheet can be produced stably.

  In the sheet manufacturing apparatus 100, in a state where the load T is mounted on the supply unit 10, the processing unit 145 indicates that the manufacturing of the sheet S is not started at the time of a sheet manufacturing start command (operation signal from the operation unit 141. For example) or before the start of manufacturing (before step S152). In the conventional sheet manufacturing apparatus, since the manufacture of the sheet is started if the mounted object is mounted, it is not determined that the sheet is not manufactured at the time of starting the manufacture of the sheet or before the start of the manufacture. On the other hand, in the sheet manufacturing apparatus 100 of the present invention, it can be determined that the sheet is not manufactured at the time of the manufacturing start command of the sheet or before the start of manufacturing. For this reason, since the production is not interrupted immediately after the start of production (for example, after the crushing unit 12 crushes the load T), it is possible to prevent the load T from being wasted. In addition, in order to manufacture the sheet, even though the temperature of the sheet forming unit 80 is increased, the manufacturing is immediately interrupted, so that energy is not wasted.

  In the sheet manufacturing apparatus 100, the supply unit 10 supplies a sheet-shaped raw material T, and the manufacturing unit 102 includes a crushing unit 12 that crushes the raw material T. Therefore, in the sheet manufacturing apparatus 100, the processing unit 145 determines whether to start manufacturing the sheet S before the crushing unit 12 crushes the raw material T. For example, if it is determined after the crushing unit crushes the raw material, it may be difficult for the user to recognize how far the raw material T flows in each part of the sheet manufacturing apparatus. In the sheet manufacturing apparatus 100, such a problem can be avoided.

  The sheet manufacturing apparatus 100 includes an output unit 142 that outputs that the loaded object T is not supplied. Therefore, the user can know that the supply unit 10 does not supply the load T.

  In the sheet manufacturing method using the sheet manufacturing apparatus 100, whether or not the processing unit (determination unit) 145 starts manufacturing the sheet S in a state where the load T mounted on the supply unit 10 is mounted. A step of determining (determining) whether or not, a step of supplying the mounted load T to the manufacturing unit, and a step of manufacturing the sheet S using the supplied load T. Therefore, the sheet manufacturing method using the sheet manufacturing apparatus 100 can manufacture the sheet S having desired characteristics.

(Second Embodiment)
2. Sheet Manufacturing Apparatus Next, a sheet manufacturing apparatus according to the second embodiment will be described with reference to the drawings. FIG. 6 is a cross-sectional view schematically showing the supply unit 10 of the sheet manufacturing apparatus 200 according to the second embodiment, and shows the same cross section as FIG. FIG. 6 also shows a functional block diagram of the control unit 140. Hereinafter, in the sheet manufacturing apparatus 200, a different point from the example of the sheet manufacturing apparatus 100 mentioned above is demonstrated, and description is abbreviate | omitted about the same point.

As shown in FIG. 6, the supply unit 10 of the sheet manufacturing apparatus 200 is different from the above-described supply unit 10 of the sheet manufacturing apparatus 100 in that a fourth sensor 126 is provided.

  For example, the fourth sensor 126 is provided on the inner upper surface 116 a of the housing 116 adjacent to the pickup roller 113. As shown in FIGS. 7 and 8, the pickup roller 113 includes a roller portion 113a and a support portion 113b that supports the roller portion 113a and is connected to the inner upper surface 116a. When the stacking unit 110 moves (rises or descends) while the roller unit 113a is in contact with the load T, the connection angle θ between the support unit 113b and the inner upper surface 116a changes. The fourth sensor 126 can detect the connection angle θ. The form and position of the fourth sensor 126 are not limited as long as the connection angle θ can be detected.

  In the sheet manufacturing apparatus 200, when the processing unit 145 outputs a signal indicating that the load T is not supplied to the output unit 142 in step S154 illustrated in FIG. The number of loaded objects T on the stacking unit 110 is calculated from the connection angle θ detected at 126, and sheet manufacturing starts (supplying of the loaded object T) starts after the number of loaded objects T is mounted on the output unit 142. Outputs a signal to indicate to do. As a result, the output unit 142 outputs a display indicating that the manufacturing of the sheet (supply of the load T) is started after the number of the load T is mounted. The user may mount the load T on the stacking unit 110 based on the display of the output unit 142. However, since the number of sheets calculated by the processing unit 145 may differ from the number actually required for starting the sheet production due to, for example, the thickness of the loaded object T, the user can count more than the number displayed on the output unit 142. The load T may be mounted on the loading unit 110.

  In the above description, the fourth sensor 126 detects the connection angle θ. However, if the processing unit 145 can calculate the number of loads T on the stacking unit 110 based on the detection result of the fourth sensor 126, An object to be detected by the fourth sensor 126 is not particularly limited. For example, the fourth sensor 126 may be a sensor that detects the number of rotations of the motor 115 or may be the top of the loaded objects T that are loaded. A reflective optical sensor that detects the position of the load T may be used.

  In the sheet manufacturing apparatus 200, as described above, the output unit 142 performs an output indicating that the manufacturing of the sheet is started after the number of the load T is mounted. Therefore, the user can know how many sheets to be loaded T will start to manufacture the sheet.

(Third embodiment)
3. Sheet Manufacturing Apparatus Next, a sheet manufacturing apparatus according to the third embodiment will be described with reference to the drawings. FIG. 7 is a diagram schematically illustrating the supply unit 10 of the sheet manufacturing apparatus 300 according to the third embodiment. 8 and 9 are cross-sectional views taken along line AA of FIG. 7 schematically showing the supply unit 10 of the sheet manufacturing apparatus 300 according to the third embodiment. For the sake of convenience, in FIG. 7, portions other than the stacking portion 110, the side wall portion 117 of the housing 116, the sensors 120, 122, 124, the detection target portions 130, 132, and the side plate 310 are omitted. 8 shows a state in which the third sensor 124 detects the second detection target portion 132. In FIG. 9, the stacking portion 110 shown in FIG. 8 is lowered and the third sensor 124 becomes the second detection target portion. The state where 132 is not detected is shown. 8 and 9 also show functional block diagrams of the control unit 140. Hereinafter, in the sheet manufacturing apparatus 300, points different from the above-described examples of the sheet manufacturing apparatuses 100 and 200 will be described, and description of similar points will be omitted.

  As shown in FIGS. 7 to 9, the supply unit 10 of the sheet manufacturing apparatus 300 is provided with the fourth sensor 126, the side plate 310, and the reference unit 320. Different from 10.

  The side plate 310 is connected to the stacking unit 110. The side plate 310 is a plate extending upward from the stacking unit 110. The height (the length in the vertical direction) of the side plate 310 is, for example, smaller than the height of the second detection target unit 132 and is equal to or greater than the thickness of the load T necessary for starting the manufacture of the sheet. is there. The side plate 310 may be provided integrally with the stacking unit 110. In the example shown in FIG. 7, a side plate 310b having a side surface continuous with the side portion 111b of the stacking unit 110, and a side plate 310c having a side surface continuous with the side portion 111c of the stacking unit 110 (a surface facing the side portion 111b). , Is provided. Although not shown, either one of the side plate 310b and the side plate 310c may not be provided.

  The reference portion 320 is provided on the inner surface 117 c of the side wall portion 117 constituting the housing 116. The inner surface 117c is, for example, a surface facing the side portion 111c. When viewed from the direction of arrow B shown in FIG. 7 (when viewed from the side 111b side to the side 111c side), the third sensor 124 detects the second detection target portion 132 as shown in FIG. In this state, the reference portion 320 is provided at a position overlapping the side plate 310. That is, when viewed from the direction of the arrow B, in the state shown in FIG. 8, the guide portion 320 is hidden by the side plate 310, so the user cannot see the guide portion 320.

  The standard part 320 is, for example, a statement that indicates a standard of the load amount of the load T required to start manufacturing the sheet (supply of the load T). In the example shown in FIG. 9, the reference portion 320 is a line written on the inner surface 117c, but the form thereof is not particularly limited. For example, the notch or the unevenness provided on the inner surface 117c may be used. It may be written as “Please load the waste paper from above”. Alternatively, the reference unit 320 may be configured by a line and a letter “load old paper up to here” provided below the line. However, since it is difficult to know what the line is for only the line, it is preferable that the reference portion 320 is configured to include the characters “please stack the used paper above here”.

  In the sheet manufacturing apparatus 300, when the user loads the load T on the stacking unit 110 after the output unit 142 outputs an indication that the load T is not supplied in step S154 shown in FIG. The required loading amount (the number of loaded sheets) of the load T can be known by the guide unit 320. Specifically, in the state illustrated in FIG. 8, the output unit 142 outputs a display indicating that the load T is not supplied. When the user presses a button or the like for lowering the stacking unit 110, for example, the stacking unit 110 descends to a predetermined position where the third sensor 124 does not detect the second detection target unit 132, as shown in FIG. It becomes a state. In the state shown in FIG. 9, the user can visually recognize the reference portion 320 and can load the load T until the reference portion 320 is exceeded. Thereafter, when the user presses a button or the like for starting the supply of the load, for example, the processing unit 145 sets the connection angle θ to the predetermined angle based on the detection result of the fourth sensor 126. Move to (up or down). In this state, the third sensor 124 does not detect the second detection target 132, and the supply of the load T is started (the process proceeds to step S152 shown in FIG. 5).

  In addition, when a user wants to load a large amount of the load T, the user further lowers the load 110 by, for example, pressing a button (not shown) provided in the supply unit 10, and then loads the load T. Can be loaded. Thus, the stacking unit 110 can be lowered in stages.

If the user presses a button for starting the load supply even though the load T has not been loaded until the target portion 320 is exceeded due to various circumstances, the processing unit 145 causes the fourth sensor 126 to move. Based on the detection result, the third sensor 124 detects the second detection object 132 after raising the stacking unit 110 until the connection angle θ reaches a predetermined angle. Then, the processing unit 145 again outputs a signal for displaying that the load T is not supplied to the output unit 142.

  In the sheet manufacturing apparatus 300, the reference unit 320 is provided in the supply unit 10 as described above. Therefore, the user can know the load amount of the load T necessary to start manufacturing the sheet.

  Further, in the sheet manufacturing apparatus 300, the side plate 310 is connected to the stacking unit 110, the height of the side plate 310 is smaller than the height of the second detection target unit 132, and is necessary for starting the manufacture of the sheet. The thickness is equal to or greater than the number of the load T. For example, if the side plate 310 is not provided, depending on the position of the stacking unit 110, the stacking amount of the load T required to start manufacturing the sheet even though the load T exceeds the reference unit 320. May not be reached. In the sheet manufacturing apparatus 300, such a problem can be avoided by providing the side plate 310.

  Although not shown, the reference portion 320 may be provided not on the inner surface 117c of the housing 116 but on the inner surface 117b (surface facing the inner surface 117c) of the housing 116, or on the inner surface 117b and the inner surface 117c. It may be provided in both.

  Moreover, the reference | standard part 320 may be provided in the side surface 312 of the side plate 310, as shown in FIG. In such a form, for example, even in a state where the stacking unit 110 is lowered to the lowest position, the user stacks the load T for the minimum number of sheets necessary to start manufacturing the sheet. Can do. The side surface 312 is a surface facing the side plate 310b in the case of the side plate 310c, and a surface facing the side plate 310c in the case of the side plate 310b.

  Further, the sheet S manufactured by the sheet manufacturing apparatus according to the present invention mainly refers to a sheet shape. However, it is not limited to a sheet shape, and may be a board shape or a web shape. The sheet in this specification is divided into paper and non-woven fabric. The paper includes a mode in which pulp or used paper is used as a raw material and is formed into a thin sheet, and includes recording paper for writing and printing, wallpaper, wrapping paper, colored paper, drawing paper, Kent paper, and the like. Non-woven fabrics are thicker or lower in strength than paper, such as general non-woven fabrics, fiber boards, tissue paper (cleaning tissue paper), kitchen paper, cleaners, filters, liquid (waste ink and oil) absorbers, sound absorbing materials, Insulating materials, cushioning materials, mats, etc. The raw material may be plant fibers such as cellulose, chemical fibers such as PET (polyethylene terephthalate) and polyester, and animal fibers such as wool and silk.

  In the present invention, a part of the configuration may be omitted within a range having the characteristics and effects described in the present application, or each embodiment or modification may be combined. Note that the manufacturing unit 102 may omit a part of the configuration, add another configuration, or replace it with a known configuration as long as the sheet can be manufactured. In the present embodiment, the dry sheet manufacturing unit is shown, but it may be wet.

  The present invention includes configurations that are substantially the same as the configurations described in the embodiments (configurations that have the same functions, methods, and results, or configurations that have the same objects and effects). In addition, the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced. In addition, the present invention includes a configuration that exhibits the same operational effects as the configuration described in the embodiment or a configuration that can achieve the same object. Further, the invention includes a configuration in which a known technique is added to the configuration described in the embodiment.

DESCRIPTION OF SYMBOLS 1 ... Tube, 2 ... Hopper, 3, 4, 5 ... Tube, 6 ... Hopper, 7, 8 ... Tube, 9 ... Hopper, 10 ... Feeding unit, 12 ... Crushing unit, 14 ... Crushing blade, 16 ... Housing Body: 20 ... Defibration part, 22 ... Introduction port, 24 ... Discharge port, 30 ... Classification part, 31 ... Introduction port, 32 ... Cylindrical part, 33 ... Reverse cone part, 34 ... Lower discharge port, 35 ... Upper discharge port , 36 ... receiving part, 40 ... sorting part, 42 ... introduction port, 44 ... discharge port, 50 ... mixing part, 52 ... additive supply part, 54 ... pipe, 56 ... blower, 60 ... deposition part, 62 ... introduction port , 70 ... Web forming part, 72 ... Mesh belt, 74 ... Stretching roller, 76 ... Suction mechanism, 78 ... Humidity adjusting part, 80 ... Sheet forming part, 82 ... First binding part, 84 ... Second binding part 86 ... heating roller, 90 ... cutting part, 92 ... first cutting part, 94 ... second cutting part, 96 ... discharge part, 100 ... made of sheet Device 102 ... Manufacturing part 110 ... Loading part 111a, 111b, 111c ... Side part 112 ... Vertical drive shaft part 113 ... Pick-up roller 113a ... Roller part 113b ... Supporting part 114 ... Delivery roller 115 ... Motor 116, casing 116 a inner surface, 117 side wall portion 117 b, 117 c inner surface 118 extraction port 119 encoder 120 120 first sensor 122 second sensor 124 124 third sensor 126 ... 4th sensor, 130 ... 1st detection object part, 132 ... 2nd detection object part, 140 ... Control part, 141 ... Operation part, 142 ... Output part, 143 ... Storage part, 144 ... Storage medium, 145 ... Processing part 200 ... Sheet manufacturing department, 300 ... Sheet manufacturing department, 310, 310b, 310c ... Side plate, 312 ... Side, 320 ... Standard part

Claims (11)

A manufacturing department for manufacturing sheets;
A supply unit for supplying the mounted product to the manufacturing unit;
With
A sheet manufacturing apparatus comprising: a determination unit configured to determine whether or not to start manufacturing the sheet in a state where the load is mounted on the supply unit.   It is characterized by having a detection unit capable of recognizing at a plurality of points below the predetermined ratio that the load is equal to or less than a predetermined ratio with respect to the maximum load amount of the supply unit, The sheet manufacturing apparatus according to claim 1.   The determination unit may determine that the manufacture of the sheet is not started in the state where the load is mounted on the supply unit, or before the start of manufacturing the sheet or before the start of manufacture. Item 2. The sheet manufacturing apparatus according to Item 1. The supply unit supplies raw material in the form of a single sheet,
The sheet manufacturing apparatus according to claim 1, wherein the manufacturing unit includes a crushing unit that crushes the raw material. A step of determining whether or not to start production of the sheet by the determination unit in a state where the load mounted on the supply unit is mounted; and
Supplying the mounted load to the manufacturing department;
A step of manufacturing a sheet using the supplied load,
A sheet manufacturing method comprising: A manufacturing department for manufacturing sheets;
A supply unit for supplying the mounted product to the manufacturing unit;
A headquarters commanding the manufacture of the sheet;
With
In a state where the load is mounted on the supply unit, the load may not be supplied when receiving a manufacturing instruction from the command unit.   The sheet manufacturing apparatus according to claim 6, further comprising an output unit configured to output that the mounted object is not supplied.   The sheet manufacturing apparatus according to any one of claims 1 to 4, further comprising an output unit that outputs that the manufacturing of the sheet is started when the number of the mounted objects is further mounted.   The sheet manufacturing apparatus according to claim 7, wherein the output unit performs an output indicating that supply of the mounted object is started after the number of the mounted objects is further mounted.   The said supply part has the description to the effect of showing the standard of the load amount of the said load required to start manufacture of the said sheet | seat, The any one of Claims 1-4 and 8 characterized by the above-mentioned. The sheet manufacturing apparatus described.   The said supply part has the description to the effect of showing the standard of the load amount of the said load required in order to start supply of the said load, The any one of Claim 6, 7, 9 characterized by the above-mentioned. The sheet manufacturing apparatus described in 1.

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