JP6888248B2 - Sheet manufacturing equipment, control method of seat manufacturing equipment - Google Patents

Description

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

Conventionally, there has been disclosed a manufacturing apparatus for producing a fiber plate by hot-pressing a mat-like composition in which a thermosetting resin and a radical initiator are added to a powdery or fibrous raw material with a hot-pressure roller (for example, a patent). Reference 1).

Japanese Unexamined Patent Publication No. 2001-113509

However, in the above-mentioned manufacturing apparatus, when the transport process of the mat-like composition is stopped, the mat-like composition comes into contact with the hot-pressure roller and is affected by the heating by the hot-pressure roller and is included in the mat-like composition. There is a problem that the resin melts and the mat-like composition sticks to the hot-pressure roller.

The present invention has been made to solve at least a part of the above-mentioned problems, and can be realized as the following forms or application examples.

[Application Example 1] The sheet manufacturing apparatus according to this application example is a sheet manufacturing apparatus for manufacturing a sheet using a raw material containing fibers, and includes a depositing portion for depositing a material containing fibers and a resin, and the above-mentioned depositing portion. A heating unit for heating the deposits deposited by the deposition unit, wherein the heating unit including the first rotating body and the second rotating body, and the first rotating body and the second rotating body are the deposits. A displacement mechanism for displacementing the heating portion to a first position for sandwiching and heating an object, a second position where the first rotating body and the second rotating body are separated from each other, and the first position. It is characterized by having at least a driving unit for rotating a rotating body on the side in contact with the deposit at two positions.

According to this configuration, by displacing the heating unit from the first position to the second position, the first rotating body and the second rotating body are separated from each other, so that the deposit is released from the pinched state. Further, at the second position, the deposit is in contact with the rotating rotating body. As a result, it is possible to prevent the deposit from sticking to the rotating body.

[Application Example 2] The sheet manufacturing apparatus according to the above application example is characterized in that the heating unit is located at the second position when the transportation of the deposit is stopped.

According to this configuration, when the transport of the deposit is stopped, the heating portion is located at the second position, so that the deposit can be reliably prevented from sticking to the rotating body.

[Application Example 3] The sheet manufacturing apparatus according to the above application example is characterized in that the rotation of the rotating body is stopped after the temperature of the rotating body on the side in contact with the deposit becomes equal to or lower than a predetermined temperature.

According to this configuration, it is possible to surely prevent the deposits from sticking to the rotating body, and it is possible to reduce the power consumption of the rotating body.

[Application Example 4] In the sheet manufacturing apparatus according to the above application example, the rotation speed of the rotating body on the side in contact with the deposit at the second position is faster than the rotation speed at the first position.

According to this configuration, it is possible to accelerate the cooling of the rotating body and surely prevent the deposits from sticking to the rotating body.

[Application Example 5] The sheet manufacturing apparatus according to the above application example has a pressurizing portion that pressurizes the deposit on the upstream side of the heating portion in the transport direction of the deposit, and the heating portion is the second heating portion. When in position, the pressurizing section is characterized by pressurizing the deposit.

According to this configuration, since the deposit is in a state of being pressurized to the pressurizing portion at the second position, it is possible to prevent the sediment from moving to the downstream side in the transport direction. This makes it possible to eliminate waste of sediment.

[Application Example 6] The sheet manufacturing apparatus according to the above application example has a first transport unit located upstream of the heating unit in the transport direction of the deposit and capable of transporting the deposit, and a heating unit. The first transport section and the second transport section are located on the downstream side in the transport direction of the deposit and have a second transport section capable of transporting the deposit, and when the heating section is in the second position. It is characterized in that the deposit is reciprocated by a transport unit.

According to this configuration, when the heating unit is in the second position, the deposit is reciprocated (reciprocated and transported). As a result, the amount of heat received by the deposit due to the radiant heat from the heating portion can be dispersed, and the adhesion of the deposit to the rotating body can be suppressed.

[Application Example 7] The sheet manufacturing apparatus according to the above application example is characterized by having a blower that blows air to a rotating body on the side in contact with the deposit.

According to this configuration, since the rotating body receives the wind from the blower, the cooling of the rotating body can be accelerated.

[Application Example 8] The control method of the sheet manufacturing apparatus according to this application example is a depositing portion for depositing a material containing fibers and a resin, and a heating portion for heating the deposit deposited by the depositing portion. The heating unit including the first rotating body and the second rotating body, the first position for the first rotating body and the second rotating body to sandwich and heat the deposit, and the said A displacement mechanism for displacementing the heating unit and a driving unit for rotating the first rotating body or the second rotating body at a second position where the first rotating body and the second rotating body are separated from each other. A method for controlling a sheet manufacturing apparatus comprising the above, characterized in that, when the heating portion is displaced to the second position, at least the rotating body on the side in contact with the deposit is rotated.

According to this configuration, when the heating unit is displaced from the first position to the second position, the first rotating body and the second rotating body are separated from each other, and the deposit is in contact with the rotating rotating body. It becomes. As a result, it is possible to prevent the deposit from sticking to the rotating body.
The sheet manufacturing apparatus according to this application example includes a heating unit that heats a web containing fibers and resin, and a heating unit.
The heating unit includes a first rotating body and a second rotating body, a first position in which the first rotating body and the second rotating body sandwich and heat the web, and the first rotating body. It has a displacement mechanism that displaces the heating unit at a second position where the second rotating body is separated from each other, and a driving unit that rotates at least the rotating body on the side in contact with the web at the second position. It is characterized by that.
The sheet manufacturing apparatus according to this application example includes a heating unit that heats a web containing fibers and resin, and a front portion.
The heating unit includes a first rotating body and a second rotating body, and the first rotating body and the second rotating body are in front of each other.
The first position for sandwiching and heating the web and the first rotating body and the second rotating body are separated from each other.
At the second position, the displacement mechanism that displaces the heating unit, and at the second position, the said
A drive unit that rotates the first rotating body while the web is in contact with the first rotating body.
The first rotating body is rotated by the driving force of the driving unit at the first position, and the first rotating body is rotated.
The second rotating body is characterized in that it is driven by the first rotating body.
Further, the sheet manufacturing apparatus according to the above application example is used when the transportation of the web is stopped.
The heating unit is characterized in that it is located at the second position.
Further, the sheet manufacturing apparatus according to the above application example is characterized in that the rotation of the first rotating body is stopped after the temperature of the first rotating body becomes equal to or lower than a predetermined temperature.
Further, the sheet manufacturing apparatus according to the above application example is characterized in that the rotation speed when the first rotating body is located at the second position is faster than the rotation speed at the first position.
Further, when the sheet manufacturing apparatus according to the above application example has a pressurizing portion that pressurizes the web on the upstream side of the heating portion in the transport direction of the web, and the heating portion is in the second position,
The pressurizing section is characterized in that it pressurizes the web.
Further, the sheet manufacturing apparatus according to the above application example has a first transport unit located upstream of the heating portion in the transport direction of the web and capable of transporting the web, and a web transport portion in the web transport direction with respect to the heating portion. It has a second transport unit located on the downstream side and capable of transporting the web, and when the heating unit is in the second position, the first transport unit and the second transport unit reciprocate the web. It is characterized by moving.
Further, the sheet manufacturing apparatus according to the above application example is characterized by having a blower that blows air to the first rotating body.
The control method of the sheet manufacturing apparatus according to this application example includes a heating unit for heating a web containing fibers and a resin, and the heating unit includes a first rotating body and a second rotating body, and the first rotating body. And the second
A displacement mechanism for displacementing the heating portion to a first position where the rotating body sandwiches and heats the web and a second position where the first rotating body and the second rotating body are separated from each other. , The first
A method for controlling a sheet manufacturing apparatus including a rotating body or a driving unit for rotating the second rotating body, and when the heating unit is displaced to the second position, the driving unit is the web. Is in contact with the first rotating body, and the first rotating body is rotated.
The control method of the sheet manufacturing apparatus according to this application example heats a web containing fibers and resin.
The heating unit and the heating unit include a first rotating body and a second rotating body, and the first rotating body and the second rotating body.
The first position where the rotating body sandwiches and heats the web, and the first rotating body and the second rotating body.
A displacement mechanism for displacing the heating portion and the first position, which are separated from each other.
A method for controlling a seat manufacturing apparatus including a rotating body or a driving unit for rotating the second rotating body.
And
When the heating unit is displaced to the second position, the web of the driving unit is the first.
The first rotating body is rotated in contact with the rotating body, and the heating portion is displaced to the first position.
In this case, the first rotating body is rotated by the driving force of the driving unit, and the second rotating body is said to be the same.
It is characterized in that it is driven by the first rotating body.

The schematic diagram which shows the structure of the sheet manufacturing apparatus which concerns on 1st Embodiment. The schematic diagram which shows the structure of the heating part which concerns on 1st Embodiment. The schematic diagram which shows the structure of the heating part which concerns on 1st Embodiment. The schematic diagram which shows the structure of the displacement mechanism which concerns on 1st Embodiment. The schematic diagram which shows the structure of the displacement mechanism which concerns on 1st Embodiment. The schematic diagram which shows the structure of the transmission mechanism which concerns on 1st Embodiment. The schematic diagram which shows the structure of the transmission mechanism which concerns on 1st Embodiment. The block diagram which shows the structure of the control part of the sheet manufacturing apparatus which concerns on 1st Embodiment. The flowchart which shows the control method of the sheet manufacturing apparatus which concerns on 1st Embodiment. The flowchart which shows the control method of the sheet manufacturing apparatus which concerns on 1st Embodiment. The schematic diagram which shows the structure of the sheet manufacturing apparatus which concerns on 2nd Embodiment. The flowchart which shows the control method of the sheet manufacturing apparatus which concerns on 2nd Embodiment. The schematic diagram which shows the operation method of the sheet manufacturing apparatus which concerns on 2nd Embodiment. The schematic diagram which shows the operation method of the sheet manufacturing apparatus which concerns on 2nd Embodiment. The schematic diagram which shows the structure of the sheet manufacturing apparatus which concerns on 3rd Embodiment. The schematic diagram which shows the structure of the sheet manufacturing apparatus which concerns on modification 1. FIG. The schematic diagram which shows the structure of the sheet manufacturing apparatus which concerns on modification 2.

Hereinafter, the first to third embodiments of the present invention will be described with reference to the drawings. In each of the following figures, in order to make each member or the like recognizable in size, the scale of each member or the like is shown differently from the actual scale.

(First Embodiment)
First, the configuration of the sheet manufacturing apparatus will be described. FIG. 1 is a schematic view showing a configuration of a sheet manufacturing apparatus according to the present embodiment. As shown in FIG. 1, the sheet manufacturing apparatus 100 includes a supply unit 10, a manufacturing unit 102, and a control unit 104. The manufacturing unit 102 manufactures the sheet. The manufacturing unit 102 includes a coarse crushing unit 12, a defibration unit 20, a sorting unit 40, a first web forming unit 45, a rotating body 49, a mixing unit 50, a depositing unit 60, and a second web forming unit. It has a 70, a sheet forming portion 80, and a cutting portion 90.

The supply unit 10 supplies the raw material to the coarse crushing unit 12. The supply unit 10 is, for example, an automatic charging unit for continuously charging the raw material into the coarse crushing unit 12. The raw material supplied by the supply unit 10 includes, for example, fibers such as used paper and pulp sheet.

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

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

A product that has passed through the defibration section 20 is called a "defibration product". "Fibers" include, in addition to the unraveled defibrated fibers, resin grains (resin for binding multiple fibers) separated from the fibers when the fibers are unraveled, ink, toner, etc. It may also contain additives such as colorants, bleeding preventives, and paper strength enhancers. The shape of the unraveled defibrated product is a string shape or a ribbon shape. The unraveled defibrated product may exist in an unentangled state (independent state) with other unraveled fibers, or may be entangled with other unraveled defibrated products to form a lump. It may exist in a state (a state forming a so-called "dama").

The defibration unit 20 performs defibration in a dry manner. Here, performing a process such as defibration in the air (in the air) or the like, not in a liquid, is referred to as a dry method. Specifically, an impeller mill is used as the defibrating portion 20. The defibration unit 20 has a function of sucking the raw material and generating an air flow that discharges the defibrated product. As a result, the defibration unit 20 can suck the raw material together with the airflow from the introduction port 22 by the airflow generated by itself, perform the defibration treatment, and convey the defibrated product to the discharge port 24. The defibrated product that has passed through the defibrating section 20 is transferred to the sorting section 40 via the tube 3. As the airflow for transporting the defibrated product from the defibration unit 20 to the sorting unit 40, the airflow generated by the defibration unit 20 may be used, or an airflow generator such as a blower is provided to provide the airflow. You may use it.

The sorting unit 40 introduces the defibrated product defibrated by the defibrating unit 20 from the introduction port 42 and sorts the fibers according to the length of the fibers. The sorting unit 40 has a drum unit 41 and a housing unit 43 that houses the drum unit 41. As the drum portion 41, for example, a sieve is used. The drum portion 41 has a mesh (filter, screen), and has fibers or particles smaller than the mesh size of the mesh (those that pass through the mesh, the first selection), and fibers or particles larger than the mesh size of the mesh. It can be separated from undissolved pieces and lumps (those that do not pass through the net, second selection). For example, the first sort is transferred to the mixing section 50 via the pipe 7. The second sort is returned from the discharge port 44 to the defibration section 20 via the pipe 8. Specifically, the drum portion 41 is a cylindrical sieve that is rotationally driven by a motor. As the net of the drum portion 41, for example, a wire mesh, an expanded metal obtained by stretching a metal plate having a cut, or a punching metal in which a hole is formed in the metal plate by a press machine or the like is used.

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

The suction unit 48 can suck the first sorted material dispersed in the air through the opening (opening of the net) of the sorting unit 40 onto the mesh belt 46. The first sort is deposited on the moving mesh belt 46 to form the web V. The basic configuration of the mesh belt 46, the tension roller 47, and the suction portion 48 is the same as that of the mesh belt 72, the tension roller 74, and the suction mechanism 76 of the second web forming portion 70, which will be described later.

The web V is formed in a soft and bulging state containing a large amount of air by passing through the sorting section 40 and the first web forming section 45. The web V deposited on the mesh belt 46 is charged into the pipe 7 and conveyed to the mixing section 50.

The rotating body 49 can cut the web V before it is conveyed to the mixing unit 50. In the illustrated example, the rotating body 49 has a base portion 49a and a protrusion 49b protruding from the base portion 49a. The protrusion 49b has, for example, a plate-like shape. In the illustrated example, four protrusions 49b are provided, and four protrusions 49b are provided at equal intervals. By rotating the base 49a in the direction R, the protrusion 49b can rotate about the base 49a as an axis. By cutting the web V by the rotating body 49, for example, the fluctuation of the amount of the defibrated product per unit time supplied to the depositing portion 60 can be reduced.

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

The mixing unit 50 mixes the first sorted product (the first sorted product conveyed by the first web forming unit 45) that has passed through the sorting unit 40 and the additive containing the resin. The mixing unit 50 includes an additive supply unit 52 for supplying the additive, a pipe 54 for transporting the first selection 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 pipe 54 is continuous with the pipe 7.

In the mixing unit 50, an air flow is generated by the blower 56, and the first selected product and the additive can be conveyed while being mixed in the pipe 54. The mechanism for mixing the first sorted product and the additive is not particularly limited, and may be agitated by blades rotating at high speed, or may use the rotation of the 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 disc feeder (not shown) is used. The additive supplied from the additive supply unit 52 contains a resin for binding a plurality of fibers. At the time the resin was supplied, the plurality of fibers were not bound. The resin melts as it passes through the sheet forming portion 80 to bind 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, and the like. Polyphenylene ether, polybutylene terephthalate, nylon, polyamide, polycarbonate, polyacetal, polyphenylene sulfide, polyether ether ketone, and the like. These resins may be used alone or in admixture. The additive supplied from the additive supply unit 52 may be in the form of fibers or in the form of powder.

The additives supplied from the additive supply unit 52 include a resin for binding the fibers, a colorant for coloring the fibers depending on the type of the sheet to be manufactured, and prevention of agglomeration of the fibers. It may contain an anti-aggregation material inhibitor, a flame retardant to prevent fibers and the like from burning. The mixture (mixture of the first selection and the additive) that has passed through the mixing section 50 is transferred to the deposit section 60 via the pipe 54.

The depositing portion 60 deposits a material (mixture) containing fibers and a resin. Specifically, the mixture that has passed through the mixing section 50 is introduced from the introduction port 62, the entangled defibrated products (fibers) are loosened, and the mixture is allowed to fall while being dispersed in the air. Further, when the resin of the additive supplied from the additive supply unit 52 is fibrous, the deposition unit 60 loosens the entangled resin. As a result, the depositing portion 60 can uniformly deposit the mixture on the second web forming portion 70.

The stacking portion 60 has a drum portion 61 and a housing portion 63 for accommodating the drum portion 61. As the drum portion 61, a rotating cylindrical sieve is used. The drum portion 61 has a mesh and allows fibers or particles (those passing through the mesh) smaller than the size of the mesh of the mesh contained in the mixture that has passed through the mixing section 50 to fall. The configuration of the drum portion 61 is, for example, the same as the configuration of the drum portion 41.

The "sieve" of the drum portion 61 may not have a function of selecting a specific object. That is, the "sieve" used as the drum portion 61 means that the drum portion 61 is provided with a net, and the drum portion 61 may drop all of the mixture introduced into the drum portion 61.

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

The mesh belt 72 deposits the passing material that has passed through the opening (opening of the net) of the depositing portion 60 while moving. The mesh belt 72 is stretched by a tension roller 74, and has a structure that makes it difficult for passing objects to pass through and allows air to pass through. The mesh belt 72 moves by rotating the tension roller 74. While the mesh belt 72 moves continuously, the passages that have passed through the deposit 60 are continuously deposited, so that the web W as a deposit is formed on the mesh belt 72. The mesh belt 72 is made of, for example, metal, resin, cloth, non-woven fabric, or the like.

The suction mechanism 76 is provided below the mesh belt 72 (on the side opposite to the deposition portion 60 side). The suction mechanism 76 can generate a downward airflow (airflow from the deposit 60 toward the mesh belt 72). The suction mechanism 76 allows the mixture dispersed in the air by the deposit 60 to be sucked onto the mesh belt 72. As a result, the discharge rate from the depositing portion 60 can be increased. Further, the suction mechanism 76 can form a downflow in the fall path of the mixture, and can prevent the defibrate and additives from being entangled during the fall.

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

In the illustrated example, a humidity control unit 78 for controlling the humidity of the web W is provided. The humidity control unit 78 can adjust the amount ratio of the web W to water by adding water or steam to the web W.

The sheet forming portion 80 pressurizes and heats the web W deposited on the mesh belt 72 to form the sheet S. In the sheet forming unit 80, a plurality of fibers in the mixture are bound to each other via the additive (resin) by applying heat to the mixture of the defibrated product and the additive mixed in the web W. Can be done.

The sheet forming unit 80 includes a pressurizing unit 82 that pressurizes the web W, and a heating unit 84 that heats the web W pressurized by the pressurizing unit 82. The pressurizing section 82 is composed of a pair of calendar rollers 85, and applies pressure to the web W. When the web W is pressurized, its thickness becomes smaller (thinner), and the density of the web W is increased. The heating unit 84 includes a pair of heating rollers 86. By configuring the heating unit 84 as a heating roller 86, the sheet S is formed while continuously transporting the web W as compared with the case where the heating unit 84 is configured as a plate-shaped press device (flat plate press device). Can be done. Here, the calendar roller 85 (pressurizing unit 82) can apply a pressure higher to the web W than the pressure applied to the web W by the heating roller 86 (heating unit 84). The number of calendar rollers 85 and heating rollers 86 is not particularly limited. The detailed configuration of the heating unit 84 will be described later.

The cutting portion 90 cuts the sheet S formed by the sheet forming portion 80. In the illustrated example, the cutting portion 90 includes a first cutting portion 92 that cuts the sheet S in a direction intersecting the conveying direction of the sheet S, and a second cutting portion 94 that cuts the sheet S in a direction parallel to the conveying direction. ,have. The second cutting portion 94 cuts, for example, the sheet S that has passed through the first cutting portion 92. On the upstream side of the first cutting portion 92 in the transport direction, transport roller pairs 97 and 98 having a drive roller capable of transporting the sheet S are arranged.

As described above, a single sheet S having a predetermined size is formed. The cut sheet S of a single sheet is discharged to the discharge unit 96.

Next, the configuration of the heating unit will be described. In the sheet manufacturing apparatus 100 of the present embodiment, the web W (deposit formed by the depositing portion 60) is heated and pressed in the above-mentioned sheet forming portion 80 (heating portion 84) to form the sheet S. In the example of FIG. 1, the heating unit 84 is simplified and drawn as a pair of heating rollers 86. Hereinafter, the heating unit 84 of the sheet manufacturing apparatus 100 of the present embodiment will be described in detail.

2 and 3 are schematic views showing the configuration of the heating unit of the present embodiment. As shown in FIG. 2, the heating unit 84 (a pair of heating rollers 86) has a rotatable first rotating body 181, a rotatable second rotating body 182, and a heating body 183. Both the first rotating body 181 and the second rotating body 182 have a roller shape having an outer peripheral surface that moves with rotation, and the web W is sandwiched and heated by the first rotating body 181 and the second rotating body 182. It is configured to pressurize to form the sheet S. Further, the heating body 183 is arranged so that the outer peripheral surface of the second rotating body 182 can be heated. Both the first rotating body 181 and the heating body 183 have a heat source H (for example, a halogen heater) inside. Instead of heating the second rotating body 182 by the heating body 183, the second rotating body 182 may be heated by a non-contact heater (for example, an infrared heater or a carbon heater).

The second rotating body 182 is composed of a core metal 184 at the center of rotation and a soft body 185 arranged so as to surround the core metal 184. The core metal 184 is made of a metal such as aluminum, iron, and stainless steel, and the soft body 185 is made of rubber such as silicon rubber and urethane rubber. Further, the first rotating body 181 and the heating body 183 are composed of a hollow metal core metal 187, and a fluorine-coated release layer 188 is provided on the surface thereof.

Further, the heating unit 84 of the present embodiment has a first position (see FIG. 2) for the first rotating body 181 and the second rotating body 182 to sandwich the web W and heat and pressurize, and the first rotating body 181. And the second rotating body 182 are displaceable at a second position (see FIG. 3) separated from each other. In the present embodiment, as shown in FIG. 3, at the second position where the first rotating body 181 and the second rotating body 182 are separated from each other, the web W (sheet S) loosens in the direction of gravity, so that the first It is in contact with the top of the rotating body 181. That is, the first rotating body 181 is a rotating body on the side in contact with the web W (seat S) at the second position where the first rotating body 181 and the second rotating body 182 are separated from each other.

The sheet manufacturing apparatus 100 of the present embodiment includes a displacement mechanism 190 for shifting the position of the heating unit 84 to the first position and the second position. The displacement mechanism 190 may displace either the first rotating body 181 or the second rotating body 182, or may displace both the first rotating body 181 and the second rotating body 182. In the displacement mechanism 190 of the present embodiment, the second rotating body 182 is configured to be displaceable with respect to the first rotating body 181.

4 and 5 are schematic views showing the configuration of the displacement mechanism of the present embodiment. As shown in FIGS. 4 and 5, the displacement mechanism 190 makes it possible to rotate the first bearing portion 193 that rotatably supports the rotating shaft 191 of the first rotating body 181 and the rotating shaft 192 of the second rotating body 182. It has a second bearing portion 194 to support, a first rod 195a, and a second rod 195b. The first bearing portion 193 and the second bearing portion 194 are rotatably connected to each other around the rotation shaft 196. One end side of the first rod 195a is rotatably provided in the second bearing portion 194 around the rotating shaft 197a, and one end side of the second rod 195b is rotatably provided in the first bearing portion 193 around the rotating shaft 197b. There is. An urging member 198 (spring) is provided on the first rod 195a. One end side of the urging member 198 is connected to the rotating shaft 197a, and the other end side of the urging member 198 is connected to the other end side 199 of the second rod 195b. The displacement mechanism 190 has a drive unit (not shown) that rotationally drives the second rod 195b around the rotation shaft 197b.

FIG. 4 shows a state when the heating unit 84 is in the second position, and FIG. 5 shows a state when the heating unit 84 is in the first position. When the second rod 195b is rotated clockwise in the state shown in FIG. 4 (second position), as shown in FIG. 5, the first rotating body 181 and the second rotating body 182 are in the first position where they come into contact with each other. Displace. At this time, the urging member 198 urges the first bearing portion 193 (first rotating body 181) toward the second bearing portion 194 (second rotating body 182), and the second bearing portion 194 is the first bearing portion. It is urged to the 193 side. Then, in the state shown in FIG. 5 (first position), when the second rod 195b is rotated counterclockwise, the first rotating body 181 and the second rotating body 182 are displaced to the second position where they are separated from each other.

Then, at least the first rotating body 181 on the side in contact with the web W is configured to be rotatable at the second position where the first rotating body 181 and the second rotating body 182 are separated from each other. In the present embodiment, when the heating unit 84 is in the second position, the first rotating body 181 and the second rotating body 182 are configured to be rotatable and driveable, respectively. The seat manufacturing apparatus 100 of the present embodiment has a driving unit 201 that rotationally drives the first rotating body 181 and a second position without transmitting the driving force of the driving unit 201 to the second rotating body 182 at the first position. A transmission mechanism 200 for transmitting the driving force of the driving unit 201 to the second rotating body 182 is provided.

6 and 7 are schematic views showing the configuration of the transmission mechanism of the present embodiment. As shown in FIGS. 6 and 7, the transmission mechanism 200 includes a drive gear 202, a main gear 203, a first gear 204, a second gear 205, a third gear 206, and a fourth gear 207. .. A drive gear 202 is connected to the rotation shaft of the drive unit 201 (the drive unit that rotationally drives the first rotating body 181). The main gear 203 is meshed with the drive gear 202, and the rotating shaft 191 of the first rotating body 181 is connected to the main gear 203. Further, the first gear 204 is meshed with the main gear 203, and the second gear 205 is meshed with the first gear 204. A third gear 206 is connected to the rotating shaft of the second gear 205 via a one-way clutch (not shown). The fourth gear 207 is meshed with the third gear 206, and the rotating shaft 192 of the second rotating body 182 is connected to the fourth gear 207.

When the second rotating body 182 is not in contact with the first rotating body 181 (at the second position), the second rotating body 182 is rotationally driven by the driving force transmitted by the transmission mechanism 200. Here, the transmission mechanism 200 is configured such that the peripheral speed of the first rotating body 181 and the peripheral speed of the second rotating body 182 are different, and at the second position, the second rotating body 182 is the first rotating body. It rotates at a peripheral speed slower than the peripheral speed of 181. Here, the peripheral speed of the second rotating body 182 is slower than the peripheral speed of the first rotating body 181 by about 10%.

When the second rotating body 182 comes into contact with the first rotating body 181 (when the first rotating body 181 and the second rotating body 182 are displaced to the first position where the web W is sandwiched), the driving force transmitted by the transmission mechanism 200 Since the peripheral speed of the rotating second rotating body 182 is slower than the peripheral speed of the first rotating body 181, the third gear 206, which is a one-way gear, idles, and the second rotating body 182 is the outer peripheral surface of the first rotating body 181. It is driven to rotate by friction with the surface of the sandwiched web W). That is, at the first position, the driving force by the driving unit 201 is not transmitted to the second rotating body 182, and the second rotating body 182 follows the first rotating body 181. The peripheral speed of the second rotating body 182 becomes slower than the peripheral speed of the first rotating body 181 in consideration of the fact that the peripheral speed of the second rotating body 182 composed of the soft body 185 increases due to thermal expansion. The transmission mechanism 200 is configured as described above.

In this way, by configuring the transmission mechanism 200 so that the driving force of the driving unit 201 is not transmitted to the second rotating body 182 at the first position, the second rotating body 182 is transferred to the first rotating body 181 at the first position. Since it can be driven, the web W can be stably conveyed by the first rotating body 181 and the second rotating body 182. If the driving force of the driving unit 201 is also transmitted to the second rotating body 182 at the first position, the difference in peripheral speed between the first rotating body 181 and the second rotating body 182 (of the second rotating body 182). The web W cannot be stably conveyed due to the speed difference due to thermal expansion and the speed difference due to the component tolerance). Further, assuming that only one of the first rotating body 181 and the second rotating body 182 is rotated and displaced to the first position, the first rotating body 181 and the second rotating body 182 are webbed. When the W is sandwiched, an impact is applied to the web W, which deteriorates the quality of the sheet.

Next, the configuration of the control unit of the seat manufacturing apparatus will be described. In this embodiment, the configuration of the control unit related to the heating unit and its peripheral portion will be mainly described. FIG. 8 is a block diagram showing a configuration of a control unit of the seat manufacturing apparatus according to the present embodiment. As shown in FIG. 8, the control unit 104 includes a command unit 130 and a driver 140. The command unit 130 includes a CPU 132, a ROM 133 as a storage means, a RAM 134, and an input / output interface 131, and processes various signals input by the CPU 132 via the input / output interface 131 based on the data of the ROM 133 and the RAM 134, and inputs / outputs. A control signal is output to the driver 140 via the interface 131. The CPU 132 performs various controls based on, for example, a drive program stored in the ROM 133.

The driver 140 is composed of motor drive units 141, 142, 143, 144, 145, 146 corresponding to each motor, heater drive units 147, 148 and the like corresponding to each heater. Then, based on the control signal of the command unit 130, the motor drive unit 141 drives and controls the motor applied to the tension roller 74. The motor drive unit 142 drives and controls the motor applied to the pressurizing unit 82. Further, the motor drive unit 143 drives and controls the motor applied to the displacement mechanism 190. Further, the motor drive unit 144 drives and controls the drive unit (motor) 201 related to the transmission mechanism 200. The motor drive unit 145 drives and controls the motor applied to the transport roller pair 97. The motor drive unit 146 drives and controls the motor applied to the transport roller pair 98. Further, the heater drive unit 147 drives and controls the heat source H applied to the first rotating body 181, and the heater drive unit 148 drives and controls the heat source H applied to the heating body 183.

Further, a temperature detection unit for detecting the temperature of the first rotating body 181 and a temperature detecting unit for detecting the temperature of the second rotating body 182 are connected to the command unit 130, respectively.

Next, a control method of the sheet manufacturing apparatus will be described. In this embodiment, the control method for the heating portion and the peripheral portion thereof will be mainly described. 9 and 10 are flowcharts showing a control method of the sheet manufacturing apparatus according to the present embodiment. In detail, FIG. 9 is a flowchart showing a control method when the transfer of the web W is stopped in the sheet manufacturing apparatus (convey stop processing), and FIG. 10 is a case where the transfer of the web W is started in the sheet manufacturing apparatus. It is a flowchart which shows the control method of (transportation start processing).

First, the transport stop processing will be described.
As shown in FIG. 9, in step S11, it is determined whether or not to stop the transportation of the web W. If it is determined in step S11 that the transportation of the web W is to be stopped, for example, if the user performs an operation for stopping the production of the sheet (YES), the process proceeds to step S12. On the other hand, if the transportation of the Web W is not stopped (NO), the process returns to step S11.

When the process proceeds to step S12, the operation of the heat source H is stopped. Specifically, a control signal is transmitted to stop the operation of the heat source H of the first rotating body 181 and the heat source H of the heating body 183 that heats the second rotating body 182.

Then, in step S13, the transportation of the web W (sediment) is stopped. Specifically, the control signal is transmitted, and the tension roller 74, the pressurizing unit 82 (calendar roller 85), the heating unit 84 (first rotating body 181 and the second rotating body 182), and the transport roller pair 97,98. Etc. are stopped. As a result, the transportation of the web W is stopped.

Next, in step S14, the heating unit 84 is displaced from the first position to the second position. That is, when the transportation of the web W is stopped, the heating unit 84 is located at the second position. Specifically, a control signal is transmitted to the motor applied to the displacement mechanism 190 to displace the heating unit 84 to the second position. As a result, the first rotating body 181 and the second rotating body 182 are separated from the state in which the web W is sandwiched between the first rotating body 181 and the second rotating body 182 of the heating unit 84 (first position) (first position). Move to 2 positions). At this time, the pressurizing unit 82 (calendar roller 85) and the transport roller pairs 97 and 98 are in a state in which the drive is stopped. That is, the pressurizing unit 82 (calendar roller 85) pressurizes (sandwiches) the web W, and the transport rollers pairs 97 and 98 are held in a state of pressurizing (pinching) the sheet S.

Next, in step S15, the first rotating body 181 and the second rotating body 182 are rotationally driven. Specifically, a control signal is transmitted to the drive unit 201 to drive the transmission mechanism 200. As a result, the first rotating body 181 and the second rotating body 182 rotate at the second position where the first rotating body 181 and the second rotating body 182 are separated from each other. More specifically, at the second position, the first rotating body 181 rotates in contact with the web W (see FIG. 3). At this time, the pressurizing unit 82 (calendar roller 85) pressurizes (sandwiches) the web W. Therefore, it is possible to prevent the web W from moving downstream in the transport direction, and it is possible to eliminate waste of the web W. When the heating unit 84 is located at the second position, the pressure (load) of the pressurizing unit 82 (calendar roller 85) on the web W is applied when the heating unit 84 is located at the first position. It may be set to be lower than the pressure (load) of the pressure unit 82 (calendar roller 85) with respect to the web W. In this way, the occurrence of indentations on the web W can be reduced.

In step S15, the rotation speed of the first rotating body 181 may be further increased. That is, the rotation speed of the first rotating body 181 at the second position may be driven and controlled to be faster than the rotation speed of the first rotating body 181 at the first position. By doing so, it is possible to accelerate the cooling of the first rotating body 181 and surely prevent the web W from sticking to the first rotating body 181.

Next, in step S16, the temperature of the outer peripheral surface of the first rotating body 181 is acquired. In this embodiment, the temperatures of the outer peripheral surfaces of the first rotating body 181 and the second rotating body 182 are acquired. Specifically, detection data is acquired from each temperature detection unit of the first rotating body 181 and the second rotating body 182.

Next, in step S17, it is determined whether or not the temperature of the outer peripheral surfaces of the first rotating body 181 and the second rotating body 182 is equal to or lower than the predetermined temperature. Specifically, it is determined whether or not the temperature of the outer peripheral surface of the first rotating body 181 is equal to or lower than the predetermined temperature and the temperature of the outer peripheral surface of the second rotating body 182 is equal to or lower than the predetermined temperature. The predetermined temperature on the outer peripheral surface of the first rotating body 181 and the predetermined temperature on the outer peripheral surface of the second rotating body 182 may be the same temperature or different temperatures. When it is determined that the temperature of the outer peripheral surfaces of the first rotating body 181 and the second rotating body 182 is equal to or lower than the predetermined temperature (YES), the process proceeds to step S18, and the first rotating body 181 and the second rotating body 182 If it is determined that the temperature of the outer peripheral surface of the above surface is not equal to or lower than the predetermined temperature (NO), the process returns to step S16.

Next, when the process proceeds to step S18, the rotational drive of the first rotating body 181 and the second rotating body 182 is stopped. Specifically, a control signal is transmitted to the drive unit 201 to stop the drive of the transmission mechanism 200. As a result, the rotation of the first rotating body 181 and the second rotating body 182 is stopped at the second position where the first rotating body 181 and the second rotating body 182 are separated from each other. In this way, by stopping the rotation of the first rotating body 181 and the second rotating body 182 after the temperature of the outer peripheral surfaces of the first rotating body 181 and the second rotating body 182 becomes equal to or lower than the predetermined temperature, the web W It is possible to surely prevent sticking to the first rotating body 181 and reduce the power consumption of the drive unit 201. With the above, the transport stop process is completed.

In the transport stop process, the process of step S13 may be performed before the process of step S12, or these processes may be performed at the same time.

Next, the transport start process will be described.
As shown in FIG. 10, in step S21, it is determined whether or not to start the transportation of the web W. At this time, the first rotating body 181 and the second rotating body 182 of the heating unit 84 are in the second position separated from each other. If it is determined in step S21 that the transportation of the web W is to be started, for example, if the user performs an operation for starting the production of the sheet (YES), the process proceeds to step S22. On the other hand, if the transportation of the Web W is not started (NO), the process returns to step S21.

When the process proceeds to step S22, the rotational drive of the first rotating body 181 and the second rotating body 182 is started. Specifically, a control signal is transmitted to the drive unit 201 to drive the transmission mechanism 200. As a result, the first rotating body 181 and the second rotating body 182 are rotationally driven at the second position.

Next, in step S23, the heat source H is operated. Specifically, a control signal is transmitted to operate the heat source H of the first rotating body 181 and the heat source H of the heating body 183 that heats the second rotating body 182. By heating the first rotating body 181 and the second rotating body 182 while rotating them at the second position, the surface temperatures of the first rotating body 181 and the second rotating body 182 can be made uniform over the circumferential direction. .. If the second rotating body 182 is heated in a stopped state, only the contact portion with the heating body 183 is heated, so that the surface temperature of the second rotating body 182 should be made uniform over the circumferential direction. I can't. Further, if the first rotating body 181 is heated in a stopped state, the heat from the heat source H is transferred non-uniformly due to the influence of convection or the like, so that the surface temperature of the first rotating body 181 is made uniform over the circumferential direction. Can't.

Next, in step S24, the temperatures of the outer peripheral surfaces of the first rotating body 181 and the second rotating body 182 are acquired. Specifically, detection data is acquired from each temperature detection unit of the first rotating body 181 and the second rotating body 182.

Next, in step S25, it is determined whether or not the temperature of the outer peripheral surfaces of the first rotating body 181 and the second rotating body 182 has reached a predetermined temperature. Specifically, it is determined whether or not the temperature of the outer peripheral surface of the first rotating body 181 reaches a predetermined temperature and the temperature of the outer peripheral surface of the second rotating body 182 reaches a predetermined temperature. The predetermined temperature on the outer peripheral surface of the first rotating body 181 and the predetermined temperature on the outer peripheral surface of the second rotating body 182 may be the same temperature or different temperatures. Then, when it is determined that the temperature of the outer peripheral surfaces of the first rotating body 181 and the second rotating body 182 has reached a predetermined temperature (YES), the process proceeds to step S26, and the process proceeds to step S26, and the first rotating body 181 and the second rotating body 182 If it is determined that the temperature of the outer peripheral surface of the above surface has not reached the predetermined temperature (NO), the process returns to step S24.

Next, in step S26, the heating unit 84 is displaced from the second position to the first position. Specifically, a control signal is transmitted to the motor applied to the displacement mechanism 190 to displace the heating unit 84 to the first position. As a result, the web W is sandwiched between the first rotating body 181 and the second rotating body 182 from the state where the first rotating body 181 and the second rotating body 182 of the heating unit 84 are separated (second position). 1 position). At this time, the first rotating body 181 and the second rotating body 182 may be displaced to the first position while being rotated, or the rotation of the first rotating body 181 and the second rotating body 182 is stopped. The rotation of the first rotating body 181 and the second rotating body 182 may be restarted after the displacement to the first position and the displacement to the first position in the state.

Then, in step S27, the transfer of the web W (sediment) is started. Specifically, the control signal is transmitted, and the tension roller 74, the pressurizing unit 82 (calendar roller 85), the heating unit 84 (first rotating body 181 and the second rotating body 182), and the transport roller pair 97,98. Etc. are started. As a result, the transportation of the web W (seat S) is started (see FIG. 2). With the above, the transport start process is completed.

In the transport start process, the process of step S23 may be performed before the process of step S22, or these processes may be performed at the same time.

As described above, according to the control method of the sheet manufacturing apparatus 100 and the sheet manufacturing apparatus 100 according to the present embodiment, the following effects can be obtained.

When the transport of the web W is stopped, the heating unit 84 is displaced from the first position to the second position to separate the first rotating body 181 and the second rotating body 182 from each other, and further, the second position. The first rotating body 181 in contact with the web W was rotationally driven in the above. As a result, it is possible to prevent the web W from sticking to the first rotating body 181.

(Second Embodiment)
Next, the second embodiment will be described. Since the basic configuration of the sheet manufacturing apparatus according to the present embodiment is the same as the configuration of the first embodiment, the description thereof will be omitted, and the parts having different configurations will be mainly described.

FIG. 11 is a schematic view showing the configuration of the sheet manufacturing apparatus according to the present embodiment. In detail, it is a schematic diagram which shows the structure of the heating part and the peripheral part thereof. As shown in FIG. 11, the sheet manufacturing apparatus 100a is located upstream of the heating unit 84 (heating roller 86) in the transport direction of the web W, and is a pressurizing unit 82 as a first transport unit capable of transporting the web W. (A pair of calendar rollers 85) and a second position located downstream of the heating unit 84 (heating roller 86) in the transport direction of the web W (sheet S) as a deposit and capable of transporting the web W (sheet S). It is provided with a transport roller pair 97 as a transport unit. The heating unit 84 has a first rotating body 181, a second rotating body 182, and a heating body 183. Further, a transport roller pair 98 is arranged on the downstream side of the transport roller pair 97 in the transport direction. Since the configurations of the pressurizing section 82, the heating section 84, and the transport roller pairs 97 and 98 are the same as those of the first embodiment, the description thereof will be omitted.

Further, in the sheet manufacturing apparatus 100a, a first tension roller 301 is arranged between the pressurizing section 82 and the heating section 84 in the transport path of the web W, and a second tension roller 301 is arranged between the heating section 84 and the transport roller pair 97. The tension roller 302 is arranged, and the third tension roller 303 is arranged between the transfer roller pair 97 and the transfer roller pair 98. The first to third tension rollers 301, 302, and 303 are configured to be able to urge the web W (seat S) in the direction of gravity, and apply tension to the web W (seat S). That is, in the production of the sheet S, a certain amount of web W is formed between the pressurizing unit 82 and the heating unit 84, between the heating unit 84 and the transport roller pair 97, and between the transport roller pair 97 and the transport roller pair 98. The web W (sheet S) is conveyed while forming a slack (buffer) of the (sheet S).

Further, a position detection unit (for example, a micro switch, a light detection sensor, etc.) for detecting the positions of the first to third tension rollers 301, 302, and 303 is provided. In this embodiment, the upper limit positions of the first to third tension rollers 301, 302, and 303 are detected. That is, the minimum slack state of the web W (seat S) is detected. The upper limit positions of the first to third tension rollers 301, 302, and 303 can be set arbitrarily, but the web W (seat S) is slightly set in order to prevent damage to the web W (seat S). The upper limit position may be set so as to detect with slack. The position detection unit is connected to the control unit 104. Then, when the heating unit 84 is in the second position, the control unit 104 reciprocates the web W (seat S) by the pressurizing unit 82 and the transfer roller pair 97.

Next, a control method of the sheet manufacturing apparatus will be described. FIG. 12 is a flowchart showing a control method of the sheet manufacturing apparatus according to the present embodiment. 13 and 14 are schematic views showing an operation method of the sheet manufacturing apparatus.

As shown in FIG. 12, first, the transport stop processing (steps S11 to S18) is executed. Since the contents of the transport stop processing (steps S11 to S18) are the same as the contents of the first embodiment, the description thereof will be omitted (see FIG. 9). Then, as shown in FIG. 13, by the transport stop process (steps S11 to S18), the heating unit 84 shifts to the second position, and the first rotating body 181 and the second rotating body 182 are separated from each other. Further, the pair of calendar rollers 85 of the pressurizing unit 82 are in a state where the web W is sandwiched and not rotationally driven. Further, the transport roller pairs 97 and 98 are in a state where the seat S is sandwiched and not rotationally driven. At this time, the web W (sheet S) is formed between the pressurizing unit 82 and the heating unit 84, between the heating unit 84 and the transport roller pair 97, and between the transport roller pair 97 and the transport roller pair 98. A slack (buffer) is formed.

Next, in step S31, the transport roller pair 97 is rotationally driven. Specifically, a control signal is transmitted to rotationally drive the transfer roller vs. 97 so that the sheet S is conveyed to the transfer roller vs. 98 side. As a result, as shown in FIG. 14, the slack (buffer) of the web W (sheet S) formed between the pressurizing section 82 and the heating section 84 and between the heating section 84 and the transport roller pair 97 is reduced. Then, the slack (buffer) between the transfer roller vs. 97 and the transfer roller pair 98 increases. Along with this, the first tension roller 301 arranged between the pressurizing section 82 and the heating section 84 moves upward. Further, the second tension roller 302 arranged between the heating unit 84 and the transfer roller pair 97 also moves upward. On the other hand, the third tension roller 303 arranged between the transport roller pair 97 and the transport roller pair 98 moves downward.

Next, in step S32, it is determined whether or not the first tension roller 301 or the second tension roller 302 has reached the upper limit position. Specifically, the determination is made based on the detection data of the position detection unit corresponding to the first tension roller 301 or the position detection unit corresponding to the second tension roller 302. Then, when it is determined that the upper limit position has been reached (YES), the process proceeds to step S33, and when it is determined that the upper limit position has not been reached (NO), the process returns to step S32.
In step S32, when one of the tension rollers 301 of the first tension roller 301 and the second tension roller 302 reaches the upper limit position, it may be determined that the upper limit position has been reached, and in step S32, it may be determined that the upper limit position has been reached. When both the tension rollers of the first tension roller 301 and the second tension roller 302 reach the upper limit position, it may be determined that the upper limit position has been reached.

Next, when the process proceeds to step S33, a control signal is transmitted to stop the rotational drive of the transport roller vs. 97. As a result, the transfer of the seat S by the transfer roller pair 97 is stopped.

Next, in step S34, the pair of calendar rollers 85 of the pressurizing unit 82 are rotationally driven. Specifically, a control signal is transmitted to rotationally drive the calendar roller 85 so that the web W is transported upstream in the transport direction of the heating unit 84. As a result, as shown in FIG. 13, the slack (buffer) between the transport roller pair 97 and the transport roller pair 98 is reduced, and the slack (buffer) between the pressurizing unit 82 and the heating unit 84 and the heating unit 84 and the transport roller pair are reduced. The slack (buffer) of the web W (sheet S) with 97 increases. Along with this, the third tension roller 303 arranged between the transport roller pair 97 and the transport roller pair 98 moves upward. On the other hand, the first tension roller 301 arranged between the pressurizing unit 82 and the heating unit 84 moves downward, and the second tension roller 302 arranged between the heating unit 84 and the transport roller pair 97 also moves downward. Move to.

Next, in step S35, it is determined whether or not the third tension roller 303 has reached the upper limit position. Specifically, the determination is made based on the detection data of the position detection unit corresponding to the third tension roller 303. Then, when it is determined that the upper limit position has been reached (YES), the process proceeds to step S36, and when it is determined that the upper limit position has not been reached (NO), the process returns to step S35.

Next, when the process proceeds to step S36, a control signal is transmitted to stop the rotational drive of the calendar roller 85 of the pressurizing unit 82. As a result, the transfer of the web W by the calendar roller 85 is stopped. That is, one reciprocating motion of the web W (seat S) is completed.

Next, in step S37, it is determined whether or not to continue the reciprocating movement of the web W (seat S). Then, if it is determined to continue (YES), the process proceeds to step S31, and if it is determined not to continue (NO), the process ends. Whether or not to continue the reciprocating movement of the web W (seat S) may be determined by specifying the number of reciprocating movements of the web W (seat S), or by the time (timer setting). You may. Further, it may be judged by the temperature of the outer peripheral surface of the first rotating body 181.

In the present embodiment, the reciprocating motion of the web W (seat S) is executed after performing the processes from step S11 to step S18 in the transport stop process, but the present invention is not limited to this, and for example, in the transport stop process. After performing the processes from step S11 to step S15, the process may proceed to step S31.

As described above, according to the control method of the sheet manufacturing apparatus 100a and the sheet manufacturing apparatus 100a according to the present embodiment, the following effects can be obtained.

With the heating unit 84 in the second position, the web W (sheet S) is reciprocated in the transport direction. As a result, the amount of heat received by the resin contained in the web W (sheet S) due to the radiant heat from the heating unit 84, particularly from the first rotating body 181 can be dispersed, and the first rotating body 181 of the web W (sheet S) can be dispersed. It is possible to suppress the sticking of.

(Third Embodiment)
Next, the third embodiment will be described. Since the basic configuration of the sheet manufacturing apparatus according to the present embodiment is the same as the configuration of the first embodiment, the description thereof will be omitted, and the parts having different configurations will be mainly described.

FIG. 15 is a schematic view showing the configuration of the sheet manufacturing apparatus according to the present embodiment. In detail, it is a schematic diagram which shows the structure around the heating part. As shown in FIG. 15, the sheet manufacturing apparatus 100b includes a blower 401 that blows air to the first rotating body 181 in contact with the web W (sheet S) when the heating unit 84 is in the second position. Since the configuration of the heating unit 84 is the same as that of the first embodiment, the description thereof will be omitted.

The blower 401 includes an air nozzle 401a, and can discharge the air supplied from the air supply unit (not shown) from the air nozzle 401a. The form of the air nozzle 401a is not particularly limited, and may be, for example, a wide flat shape or a shape that discharges air in a radial manner.
Then, the air nozzle 401a is arranged toward the top of the first rotating body 181 (the portion in contact with the web W (seat S)). In the present embodiment, the web W (seat S) of the first rotating body 181 is arranged on the upstream side and the downstream side in the transport direction, and air is discharged from the air nozzles 401a arranged in each.
The drive unit of the blower 401 is connected to the control unit 104, and when the heating unit 84 is located at the second position, the blower 401 is driven by receiving the drive signal from the control unit 104, and air is discharged from the air nozzle 401a. It is discharged.
Further, the pressure of the air discharged from the air nozzle 401a can be appropriately set, and when the air is discharged toward the top of the first rotating body 181, the first rotating body 181 and the web W (seat S) are separated from each other. It is desirable that the air pressure is about the same.

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

When the heating unit 84 is in the second position, the first rotating body 181 receives the wind from the blower 401, so that the cooling of the first rotating body 181 can be accelerated. The web W (seat S) can also be cooled.

The present invention is not limited to the above-described embodiment, and various changes and improvements can be added to the above-described embodiment. A modified example will be described below. Modification examples may be combined.

(Modification 1) In the third embodiment, a blower 401 having an air nozzle 401a for discharging air to the first rotating body 181 is provided, but the present invention is not limited to this configuration. For example, it may be configured to include a fan that blows air to the first rotating body 181. FIG. 16 is a schematic view showing the configuration of the sheet manufacturing apparatus according to the present modification. In detail, it is a schematic diagram which shows the structure around the heating part. As shown in FIG. 16, the sheet manufacturing apparatus 100c includes a fan 402 that blows air to the first rotating body 181 in contact with the web W (sheet S) when the heating unit 84 is in the second position.

The fan 402 has an impeller 403, and is configured to generate an air flow by rotating the impeller 403 so that air can be blown from the exhaust port 404. The fan 402 is arranged below the first rotating body 181 so that the exhaust port 404 faces the first rotating body 181. The drive unit of the fan 402 is connected to the control unit 104, and when the heating unit 84 is located at the second position, the fan 402 receives the drive signal from the control unit 104 to drive the fan 402 and blow air from the exhaust port 404. Will be done. The wind blown from the exhaust port 404 flows from the lower part of the first rotating body 181 toward the top of the first rotating body 181 along the outer peripheral surface of the first rotating body 181. In this way, when the heating unit 84 is in the second position, the entire first rotating body 181 receives the wind from the fan 402, so that the cooling of the first rotating body 181 can be accelerated. The web W (seat S) can also be cooled.

(Modification 2) In the first embodiment, the case where the shapes of the first rotating body 181 and the second rotating body 182 are formed into a roller shape has been described, but at least one of the first rotating body 181 and the second rotating body 182 is used. It may be in the shape of a belt. FIG. 17 is a schematic view showing the configuration of the sheet manufacturing apparatus according to the present modification. As shown in FIG. 17, the first rotating body 181a of the sheet manufacturing apparatus 100d has a belt stretched on a roller 189 and rotationally driven by the roller, and the second rotating body 182a has a heat source H inside. It is a heating roller to have. In the example shown in FIG. 17, the belt of the first rotating body 181a is heated by the heating body 183a which is a non-contact heater. Even in this way, the same effect as described above can be obtained.

(Modification 3) In the first embodiment, a temperature detection unit for detecting the surface temperature of each of the first rotating body 181 and the second rotating body 182 is provided, and in the transport stop processing of the web W (sheet S), the first When the surface temperature of the rotating body 181 and the second rotating body 182 becomes equal to or lower than a predetermined temperature, the rotational driving of the first rotating body 181 and the second rotating body 182 is stopped, but the present invention is not limited to this configuration. For example, a timer is installed in the sheet manufacturing apparatus, the time from the time when the heating unit 84 is displaced to the second position is measured, and the rotation of the first rotating body 181 and the second rotating body 182 is based on the measured time data. The drive may be stopped. In this case, the timer may set in advance the time during which the surface temperature of the first rotating body 181 and the second rotating body 182 becomes equal to or lower than a predetermined temperature. Even in this way, the same effect as described above can be obtained.

1 ... hopper, 2 ... pipe, 3 ... pipe, 7 ... pipe, 8 ... pipe, 9 ... hopper, 10 ... supply part, 12 ... coarse crushing part, 14 ... coarse crushing blade, 20 ... defibration part, 22 ... introduction Port, 24 ... Discharge port, 40 ... Sorting part, 41 ... Drum part, 42 ... Introduction port, 43 ... Housing part, 44 ... Discharge port, 45 ... First web forming part, 46 ... Mesh belt, 47 ... Stretching roller , 47a ... tension roller, 48 ... suction part, 49 ... rotating body, 49a ... base, 49b ... protrusion, 50 ... mixing part, 52 ... additive supply part, 54 ... tube, 56 ... blower, 60 ... depositing part , 61 ... drum part, 62 ... introduction port, 63 ... housing part, 70 ... second web forming part, 72 ... mesh belt, 74 ... tension roller, 76 ... suction mechanism, 78 ... humidity control part, 80 ... sheet forming Parts, 82 ... Pressurized part, 84 ... Heating part, 85 ... Calendar roller, 86 ... Heating roller, 90 ... Cutting part, 92 ... First cutting part, 94 ... Second cutting part, 96 ... Discharge part, 97 ... Transport Roller pair, 98 ... Conveying roller pair, 100, 100a, 100b, 100c, 100d ... Sheet manufacturing equipment, 102 ... Manufacturing unit, 104 ... Control unit, 130 ... Command unit, 131 ... Input / output interface, 132 ... CPU, 133 ... ROM, 134 ... RAM, 140 ... driver, 141 ... motor drive unit, 142,143,144,145,146 ... motor drive unit, 147,148 ... heater drive unit, 181,181a ... first rotating body, 182,182a Second rotating body, 183, 183a ... heating body, 184 ... core metal, 185 ... soft body, 187 ... core metal, 188 ... release layer, 189 ... roller, 190 ... displacement mechanism, 191 ... rotating shaft, 192 ... Rotating shaft, 193 ... 1st bearing, 194 ... 2nd bearing, 195a ... 1st rod, 195b ... 2nd rod, 196 ... Rotating shaft, 197a ... Rotating shaft, 197b ... Rotating shaft, 198 ... Biasing member, 199 ... The other end of the second rod 195b, 200 ... Transmission mechanism, 201 ... Drive unit, 202 ... Drive gear, 203 ... Main gear, 204 ... 1st gear, 205 ... 2nd gear, 206 ... 3rd gear, 207 ... 4th gear, 301 ... 1st tension roller, 302 ... 2nd tension roller, 303 ... 3rd tension roller, 401 ... blower, 401a ... air nozzle, 402 ... fan, 403 ... impeller, 404 ... exhaust port.

Claims (8)

A heating part that heats the web containing fibers and resin,
The heating unit includes a first rotating body and a second rotating body, and includes the first rotating body and the second rotating body.
The heating is performed at a first position where the first rotating body and the second rotating body sandwich and heat the web, and at a second position where the first rotating body and the second rotating body are separated from each other. A displacement mechanism that displaces the part,
In the second position, before Symbol condition web it is tangent to the first rotary member, have a, a driving unit for rotating the first rotary member,
At the first position, the first rotating body is rotated by the driving force of the driving unit, and the second rotating body is rotated.
A sheet manufacturing apparatus characterized in that the rotating body is driven by the first rotating body. In the sheet manufacturing apparatus according to claim 1,
A sheet manufacturing apparatus, characterized in that the heating unit is located at the second position when the transportation of the web is stopped. In the sheet manufacturing apparatus according to claim 1 or 2.
A sheet manufacturing apparatus characterized in that the rotation of the first rotating body is stopped after the temperature of the first rotating body becomes equal to or lower than a predetermined temperature. In the sheet manufacturing apparatus according to any one of claims 1 to 3.
A sheet manufacturing apparatus characterized in that the rotation speed when the first rotating body is located at the second position is faster than the rotation speed at the first position. In the sheet manufacturing apparatus according to any one of claims 1 to 4.
It has a pressurizing section that pressurizes the web on the upstream side of the heating section in the transport direction of the web.
A sheet manufacturing apparatus characterized in that when the heating unit is in the second position, the pressurizing unit pressurizes the web. In the sheet manufacturing apparatus according to any one of claims 1 to 4.
A first unit that is located upstream of the heating unit in the transport direction of the web and is capable of transporting the web.
Transport section and
It has a second transport unit located downstream of the heating unit in the web transport direction and capable of transporting the web.
A sheet manufacturing apparatus characterized in that when the heating unit is in the second position, the web is reciprocated by the first transport unit and the second transport unit. In the sheet manufacturing apparatus according to any one of claims 1 to 6.
A sheet manufacturing apparatus comprising a blower that blows air to the first rotating body. A heating unit that heats a web containing fibers and a resin, the heating unit includes a first rotating body and a second rotating body, and the first rotating body and the second rotating body sandwich the web. A displacement mechanism for displacementing the heating portion to a first position for heating and a second position where the first rotating body and the second rotating body are separated from each other, and the first rotating body or the first rotating body or the first position. It is a control method of a seat manufacturing apparatus provided with a drive unit for rotating a two-rotating body.
When the heating unit is displaced to the second position, the web of the driving unit is the first.
The first rotating body is rotated in contact with the rotating body, and the heating portion is displaced to the first position.
In this case, the first rotating body is rotated by the driving force of the driving unit, and the second rotating body is said to be the same.
A method for controlling a sheet manufacturing apparatus, which is driven by a first rotating body.

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