JP2002004189A - Sheet machine and method for producing sample sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet machine for making foreign materials contained in a pulp suspension stick to a water-permeable sheet. SOLUTION: This sheet machine B is equipped with a vessel 21 having an opening 21b at the bottom and used for placing a liquid containing a papermaking raw material and the foreign materials, a sheet receiving part 25 for receiving water-permeable sheets S1, a transporting means 26 for attracting the topmost water-permeable sheet S1 received in the sheet receiving part 25 and transporting the water-permeable sheet S1 and a lifting and lowering unit 22 liftably and lowerably composed so as to freely come into contact and separate from the bottom of the vessel 21 and provided with a sheet carrying part 22f where the water-permeable sheets S1 attracted and transported with the sheet transporting means 26 are placed in the upper part. The lifting and lowering unit 22 is equipped with a suction port 22a so as to face to the sheet carrying part 22f, an air passage 22e communicating with the suction port 22a and providing a passage for air on the suction side of a vacuum pump 22d and a sheet discharging part 28 for attracting the topmost water-permeable sheet S7 placed on the sheet carrying part 22f with the sheet transporting means 26, transporting the water-permeable sheet S1 to the discharge side and placing the water-permeable sheet S1 thereon.

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to a sheet machine and a sample sheet.
The present invention relates to a method for producing a sheet, and more particularly to a sheet machine for attaching foreign substances contained in a pulp suspension to a water-permeable sheet and a method for producing a sample sheet.

[0002]

2. Description of the Related Art Foreign matter contained in a pulp suspension is formed on a sheet-like member using pulp raw material contained in the pulp suspension, and the foreign matter is adhered to the sheet-like member. Then, the foreign matter can be visually checked to confirm the selected state of the papermaking raw material.

[0003]

However, in the above-described apparatus, since the sheet-like member to which the foreign matter is attached is transported by the suction head, the sheet-like member having a thickness enough to withstand the transport is used. It must be formed, a certain amount of pulp suspension is required, and when the thickness is large, foreign matter enters the sheet-like member, and it may occur that the foreign matter cannot be seen as it is from the outside. There was a problem. SUMMARY OF THE INVENTION The present invention provides a sheet machine and a method for manufacturing a sample sheet that eliminate the above-mentioned problems.

[0004]

According to a first aspect of the present invention, there is provided a sheet machine having an opening at a bottom, a container for containing a papermaking raw material and a liquid containing foreign matter, and a water permeable sheet. A sheet receiving part for receiving the sheet, sheet conveying means for adsorbing and conveying the water permeable sheet received by the sheet receiving part, and a vertically movable unit which can be freely moved up and down at the bottom of the container. An elevating body having an upper portion on which a sheet holder is placed on which the water-permeable sheet adsorbed and conveyed by the sheet conveying means is placed, and the elevating body includes the sheet A suction port is provided so as to face the holder, and an air passage communicating with the suction port and serving as an air passage on the suction side of the vacuum pump; and the water permeability placed on the sheet holder. The sheet is adsorbed by the sheet conveying means and conveyed to the discharge side, and the water is permeated. Sheet - put Sorted - and a preparative discharge portion.

According to a second aspect of the present invention, in the sheet machine according to the first aspect, the liquid containing the papermaking raw material and the foreign matter is separated from the papermaking raw material and the foreign matter from the liquid, and the liquid containing a large amount of the foreign matter. It is.

According to a third aspect of the present invention, there is provided the sheet machine according to the first aspect, wherein a suction force for sucking the papermaking raw material through the water-permeable sheet is suctioned by suction of the sheet conveying means. Greater than power.

According to a fourth aspect of the present invention, there is provided the sheet machine according to the first aspect, wherein the sheet transporting means has an attraction surface for attracting and transporting by suction of air. The seat receiving portion receives the laminated water-permeable sheet, and the regulating member is located on a side surface of the laminated water-permeable sheet and moves in the horizontal direction to laminate the water-permeable sheet. The end of the regulating member is positioned so as to reach the distance of the thickness of one sheet of water-permeable sheet from the suction surface, and the leading end of the regulating member. Is penetrated under the uppermost laminated water-permeable sheet, and the movement of the laminated water-permeable sheet located below the uppermost laminated water-permeable sheet is controlled by the regulating member. In a regulated state, the uppermost water-permeable sheet is adsorbed by the sheet conveying means. That.

According to a fifth aspect of the present invention, there is provided the sheet machine according to the first aspect, wherein an air passage communicating with the suction port and serving as an air passage on the suction side of the vacuum pump is provided by switching means. Switch to the suction side or discharge side of the vacuum pump,
The suction port is a dual-purpose port for sucking in air or discharging air.

According to a sixth aspect of the present invention, in the sheet machine of the first aspect, a contact portion provided to face the sheet discharge portion, and the contact portion includes: An air-outlet provided at the end of the passage; and an expansion portion provided in the passage on the way to the air-outlet, wherein the air-outlet comprises a valve. The valve body is opened and closed by a body, the valve body has a lid portion that opens and closes the air outlet, and a stopper member connected to the lid portion and movably housed in the expansion portion,
The valve body is moved by a stopper member so as to open the air-blowing port by the air, abuts against the abutting portion of the expansion section, and stops. When the valve body is pressed, the valve body is moved by the lid. The sheet discharge portion or the contact portion is configured so as to close the air outlet, so that the water-permeable sheet placed on the sheet discharge portion contacts the contact portion. A moving means for moving the sheet, and the permeable sheet, which is provided at either the sheet discharge section or the contact section, and which is held between the sheet discharge section and the contact section, heats the sheet. And heating means for performing the heating.

In the method for producing a sample sheet according to a seventh aspect of the present invention, the liquid containing papermaking raw material and foreign matter is sucked through a water-permeable sheet placed on a sheet holder, and the water-permeable material is drawn. See
A sheet is manufactured by forcibly passing a sheet through which the fibers and foreign substances in the papermaking raw material that cannot pass through the water-permeable sheet are adhered to the water-permeable sheet to produce a sample sheet. The water permeable sheet placed on the sheet holder is transported by adsorbing the water permeable sheet received by the sheet receiving unit by the sheet transport means. And the uppermost of the plurality of water-permeable sheets stacked on the sheet receiving portion is adsorbed by the air suction force of the sheet conveying means, and When the sheet is conveyed to the sheet placing portion, the movement of the water permeable sheet located below the uppermost water permeable sheet is regulated by a regulating member, and the sheet conveying means is moved to the uppermost position. And adsorbs only the water permeable sheet and transports it to the sheet placing section.

In the method for producing a sample sheet according to the present invention, the liquid containing the papermaking raw material and the foreign matter is sucked through a water-permeable sheet placed on a sheet holder, and the water-permeable material is drawn. See
A sheet is manufactured by forcibly passing a sheet through which the fibers and foreign substances in the papermaking raw material that cannot pass through the water-permeable sheet are adhered to the water-permeable sheet to produce a sample sheet. When adsorbing and transporting the water-permeable sheet to which the fibers and the foreign matter in the papermaking raw material of the sheet storage section adhere, the water-permeable sheet is removed from the sheet storage section. The air is caused to flow out of the sheet placing section toward the water permeable sheet so as to be separated, and the water permeable sheet is separated from the sheet receiving section.

According to a ninth aspect of the present invention, in the method for manufacturing a sample sheet, the liquid containing the papermaking raw material and the foreign matter is sucked through a water permeable sheet placed on a sheet holder, and the water permeable material is sucked. See
A sheet is manufactured by forcibly passing a sheet through which the fibers and foreign substances in the papermaking raw material that cannot pass through the water-permeable sheet are adhered to the water-permeable sheet to produce a sample sheet. Further, the water-permeable sheet to which the fibers and the foreign matter in the papermaking raw material are adhered is sandwiched between a sheet discharging portion and a contact portion provided so as to face the sheet discharging portion. While pressing, heat is applied to the water permeable sheet to dry the water permeable sheet, and after drying, the interval between the sheet discharging portion and the contact portion is widened, and Air is blown out from the air outlet provided to release the water permeable sheet attached to the contact portion from the contact portion and move the sheet to the sheet discharge portion. The air-outlet provided in the contact portion is provided with a valve element for opening and closing the air-outlet, When the body sandwiches and presses the water permeable sheet between the sheet discharging portion and the contact portion, the air outlet is closed so that the water permeable sheet adheres to the contact portion. When the sheet is detached from the contact portion, the air outlet is opened and air is blown from the air outlet.

In a tenth aspect of the present invention, the method for manufacturing a sample sheet is connected to a papermaking production line, and connected to a first discharge passage for leading a papermaking raw material and a liquid containing foreign matter, and to the papermaking production line. A second discharge passage different from the first discharge passage and water; and a liquid connected to the first discharge passage and the second discharge passage. A supply path for sampling, a first opening / closing member that is provided in the middle of the first discharge path and opens and closes the first discharge path, and is provided in the middle of the second discharge path. A second opening / closing member for opening / closing a second discharge passage, and the liquid supplied from the sampling supply passage is sucked through a water permeable sheet to forcibly pass through the water permeable sheet. Papermaking that cannot pass through the permeable sheet The water permeable sheet fibers and foreign objects in postal -
Sample sheet for producing sample sheet by attaching to sample sheet
A method of manufacturing a first opening / closing member,
The liquid is guided to the water-permeable sheet through the first discharge passage and the sampling supply passage.

[0014] Further, in the method for producing a sample sheet according to the present invention, the method is connected to a papermaking production line, and is connected to a first discharge passage for leading a papermaking raw material and a liquid containing foreign matter, and to the papermaking production line. A liquid containing papermaking raw materials and foreign matter is guided, and a second discharge passage different from the first discharge passage, and the liquid guided by the second discharge passage or the first discharge passage are carefully selected and separated. A screen for discharging a solution containing the foreign matter, supplying water, connecting to the passage, and substantially connected to the screen; and a supply passage for sampling. The liquid supplied from the above is carefully selected by the screen, and the solution containing the separated foreign matter is sucked through a water-permeable sheet to forcibly pass through the water-permeable sheet. Papermaking that cannot pass through a sex sheet The water permeable sheet fibers and foreign objects in postal -
Sample sheet for producing sample sheet by attaching to sample sheet
A method of manufacturing a first opening / closing member,
The liquid is guided to the screen via the first discharge passage and the sampling supply passage, and then the first opening / closing member is closed to supply water to the sampling supply passage. While cleaning the inside,
Leading the washed water to the screen, and then
The screen material is carefully selected by the screen, a solution containing foreign matter that cannot be separated is passed through the water-permeable sheet, and fibers and foreign matter in the paper material that cannot pass through the water-permeable sheet are passed through the water-permeable sheet. Attached to sex sheet.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A sheet machine and a method for manufacturing a sample sheet according to an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, A is a sampling sheet making system, and the sampling sheet making system A is a paper making line L and a water permeable sheet S ₁ for removing fibers and foreign substances in paper making raw materials.
(For example, a filter paper).

In the paper making line L, for example, a papermaking raw material (for example, used paper) is put into a tank, and water is added thereto to disintegrate it into a pulp. An appropriate number of first screens 2 for carefully selecting papermaking raw materials from which foreign matter has been removed, and a second screen 3 for further selecting papermaking raw materials selected by the first screen 2. Paper is made through a paper machine (not shown) via a screen (not shown) and a cleaner (not shown). In FIG. 1, the papermaking raw material selected by the first screen 2 is guided to the second screen 3, but a chest (not shown) is provided on the way, and the second material is passed through the chest. It may be led to the screen 3.

4 is a first discharge passage 5 or a second discharge passage 5 to be described later.
A third screen (screen) for carefully selecting the sampled paper raw material (liquid) guided by the discharge passage 6 and discharging the solution containing the separated foreign matter, 5 is a paper manufacturing line L The first discharge passage 5 is connected to the first paper passage and guides the liquid containing the foreign matter. The first discharge passage 5 is, specifically, a passage 2a for discharging the paper raw material selected by the first screen 2. More branched.

Reference numeral 6 designates a first discharge passage 6 which is connected to the papermaking production line L and guides a liquid containing papermaking raw materials and foreign matters.
Specifically, the second discharge passage 6 is branched from a passage 3 a for discharging papermaking raw materials selected by the second screen 3.

Reference numeral 7 denotes a sampling supply passage which supplies water, is connected to the first discharge passage 5 and the second discharge passage 6, and is substantially connected to the third screen 4. Here, “substantially” connected to the third screen 4 means that one end of the sampling supply passage 7 is connected to the third screen 4.
In addition to being directly connected to a chamber 4a (for example, a chamber having a screen plate (not shown)) for carefully selecting the papermaking raw material of the third screen 4, as shown in this embodiment, the papermaking raw material of the third screen 4 Before leading to a screen plate (not shown) for selective selection, the papermaking raw material sampled once is put into a tank 4b provided in the third screen 4, and thereafter, from the tank 4b through a passage 4c. It is intended to include a case where the tank 4b is interposed midway so as to guide the papermaking raw material of the screen 3 to the chamber 4a for selecting carefully.

The passage 4d is a passage for returning the papermaking raw material selected by the third screen 4 to the papermaking production line L, and the passage 4e is for passing the sampled papermaking raw material to the third screen 4. This is a passage for introducing a solution containing foreign matter that has been carefully selected and separated from papermaking raw materials into the container 21.

Reference numeral 8 denotes a first opening / closing member provided in the middle of the first discharge passage 5 for opening and closing the first discharge passage 5.
Reference numeral 9 denotes a second opening / closing member provided in the middle of the second discharge passage 6 to open and close the second discharge passage 6. Reference numeral 10 denotes a middle of the sampling supply passage 7, more specifically, a sampling supply passage. 7 and a connection portion 5a between the first discharge passage 5 and a connection portion 6 between the sampling supply passage 7 and the second discharge passage 6
a third opening / closing member which is located on the upstream side of the flow of water from a and opens and closes the supply channel 7 for sampling; and 11 is a fourth opening / closing member which is provided in the middle of the passage 4d and opens and closes the passage 4d.
Reference numeral 12 denotes a fifth opening / closing member provided in the middle of the passage 4e to open and close the passage 4e. Reference numeral B denotes a sheet machine for attaching fibers and foreign substances in the papermaking raw material supplied from the sampling supply passage 7 to the water-permeable sheet 13, which will be described in detail later.

Therefore, for example, when confirming the selected state of the papermaking raw material selected by the first screen 2, the first opening / closing member 8 is opened (the second opening / closing member 9 and the third opening / closing member). 10 is closed), the papermaking raw material selected by the first screen 2 is guided to the third screen 4 through the first discharge passage 8 and the sampling supply passage 7, and then the first opening and closing is performed. The member 8 is closed, the third opening / closing member 10 is opened, water is supplied to the sampling supply passage 7, the inside of the sampling supply passage 7 is washed with water, and the washed water is supplied to the third screen 4. After that, the papermaking raw material is carefully selected by the third screen 4, and the solution containing the separated foreign matter is supplied to the sheet machine B, which will be described later in detail. The solution containing the foreign matter is sucked through the water-permeable sheet S ₁ (see FIG. 2). Permeability sheet - the door S ₁ is forced through, permeable sheet - DOO S ₁ permeability fibers and foreign substances in the papermaking material which can not pass through the sheet - it is attached to preparative S ₁ with sample -
A sheet S (see FIG. 3) can be prepared, and the state of the papermaking raw material selected by the first screen 2 can be confirmed.

In order to confirm the selected state of the papermaking raw material selected by the second screen 3, the second opening / closing member 9 is opened (the first opening / closing member 8 and the third opening / closing member 10 are opened). Closed), the papermaking raw materials selected in the second screen 3
To the third screen 4 via the discharge passage 6 and the sampling supply passage 7, and then the second opening and closing member 9 is closed and the third opening and closing member 10 is opened. Water is supplied, the inside of the supply passage 7 for sampling is washed with water, and the washed water is guided to the third screen 4. After that, the raw material for papermaking is carefully selected by the third screen 4. The solution containing the separated foreign matter is supplied to a sheet machine B, and the fibers and the foreign matter in the papermaking raw material are adhered to the water-permeable sheet S ₁ (see FIG. 2) by the sheet machine B, as will be described in detail later. To create a sample sheet S (see FIG. 3).
Of the papermaking raw material selected by the screen 2 can be confirmed.

Since the sheet machine B and the screens (2, 3) of the paper making line L are thus connected,
A sample sheet S for easily checking the selected state of the papermaking raw material can be easily prepared without having to go to the screen (2, 3) of the papermaking production line L for the papermaking raw material for sampling. The foreign substances adhering in the supply path 7 are washed, and an accurate sample sheet S for confirming the selected state of the papermaking raw material can be produced.

In the sampling sheet machine A, the number of screens and the third screen 4 for carefully selecting the papermaking raw materials in the papermaking production line L may be plural, respectively. , A second screen 3 for further selecting the papermaking raw material selected by the first screen 2, and a sampled papermaking raw material for separation. A third screen 4 for discharging the solution containing the contaminated foreign matter may be provided, and one ends of the first discharge path 5 and the second discharge path 6 are connected to screens (2, 3). ), But is not limited to a screen. For example, although not shown, it may be connected to a cleaner.

In the present embodiment, the third screen 4 is interposed between the paper making line L and the sheet machine B, but the third screen 4 may be interposed in some cases. Instead, the paper making line L and the sheet machine B may be directly connected. That is, the liquid supplied from the sampling supply passage 7 - Permeability sheet by Tomashin B - by suction through the door S ₁ permeability sheet - forced through the door S _1, permeability sheet - DOO permeability fibers and foreign substances in the papermaking material which can not pass through the S ₁ sheet - is attached to preparative S ₁ and sample sheet - may be prepared bets S.

Next, the sheet machine B will be described with reference to FIGS. Sheet - Tomashin B is a liquid containing paper stock and foreign matter - is forced through the door S ₁ - noo portion 22f to put the water permeability sheet - by suction through the door S ₁ permeability sheet , permeability sheet - the fibers and foreign materials in the papermaking raw materials can not pass through the door S ₁ permeability sheet - by adhering to preparative S ₁ sample - a device for producing a preparative S (see FIGS. 12 and 13).

Numeral 21 denotes a container for containing a liquid containing papermaking raw material and foreign matter. In the container 21, for example, in addition to the liquid containing papermaking raw material and foreign matter, a sampled papermaking raw material and foreign matter flowing through the passage 4e are contained. A liquid containing a large amount of foreign matter (for example, a solution obtained by diluting foreign matter separated from the papermaking raw material with water) by separating the papermaking raw material and foreign matter from the liquid containing water by the third screen 4
Alternatively, the sampled papermaking raw material itself flowing through a passage (not shown) connected to the papermaking production line L without using the third screen 4 is received. When the sampled papermaking raw material itself is placed in the container 21, the funnel 21a provided on the upper part of the container 21 is used. gender sheet - door S ₁ may not be used.

The container 21 has an opening 21b at the bottom. The elevating body 22 is configured to be movable (for example, elevating and lowering) freely to and away from the bottom of the container 21, and a sheet conveying means 26 described later.
Permeability sheet is conveyed by suction by - city - and a noo portion 22f in the upper - DOO S ₁ is sheet placed. The elevating body 22 is connected to a rod 22c that moves up and down by a cylinder 22b. The elevating body 22 is provided with a suction port 22a so as to face the sheet placing portion 22f. An air passage 22e communicates with the suction port 22a, and serves as an air passage on the suction side of the vacuum pump 22d.

The adjustment of the suction force by the elevating body 22 is an example.
For example, the vacuum pump 22d is driven by an inverter (not shown).
The motor (not shown) can be variably controlled in rotation speed or air.
A ball valve (not shown) is provided in a passage in the passage 22e,
Rotating a ball valve (not shown) to change the passage area
Can be controlled. And to the vacuum pump 22d
The suction force by the suction port is appropriately adjusted.
Suction force P sucking through 22a₁ And the suction force P described later
_Two , Suction power P_Three The size relationship with₁ > P _Two > P_Three 
Good to be. That is, the water permeable sheet S₁ Absorb top surface of
When transporting, the permeable sheet S₁ Through the papermaking raw material
Suction force P for suction₁ Is the suction of the sheet conveying means 26 described later.
Suction force P_Two By making it larger, the permeability
To S₁ Sump with strong suction and adhesion of foreign matter to the upper surface of
A sheet can be made and a water permeable sheet S₁
To prevent foreign matter adhering to the upper surface of the sheet from coming off.
₁ Can be transported.

The air passage 22e is switched by a switching means (not shown) so as to be switched to the suction side or the discharge side of the vacuum pump 22d, so that the suction port 22a is a dual-purpose port for sucking in air or discharging air. May be. In such a case, sheet - noo portion permeable fibers and foreign matter adhering material in the papermaking material of 22f sheet - sheet below the door S ₁ - when transporting adsorbed by preparative conveying means 26, permeable sheets - DOO S ₁ sheet - Sorted away from rest portion 22f - noo portion permeable sheet from 22f - towards preparative S ₁ to flow out air permeability sheet - withdrawal from noo portion 22f - bets S ₁ Let it do. As a result, permeability sheet - it is possible to easily detached from noo portion 22f, - the door S ₁ sheet
The adsorbing power of the water permeable sheet S ₁ can be weakened, and foreign matter adhering to the water permeable sheet S ₁ is reduced by the reduced adsorbing power.
It can be prevented from being sucked by the suction by preparative conveying means 26, more appropriate sample sheet - it is possible to create a preparative S _1.

Reference numeral 25 denotes a sheet receiving section for receiving the laminated water permeable sheet S _{1. The} sheet receiving section 25 is, for example, a water permeable sheet S ₁ (for example, filter paper). A contact surface 25a which is in contact with the water-permeable sheet S ₁ placed on the contact surface 25a;
And a ring-shaped portion 25b formed in a ring shape so as to be housed in a predetermined position. The ring-shaped portion 25b, stacked permeable sheet - regulating member 30 entering or retraction between bets S ₁ - DOO flank the S _1, horizontally stacked by moving the permeable sheet Is provided. The regulating member 30 is, for example, a plate that follows the advance and retreat of the rod 25d of the cylinder 30a attached to the ring-shaped portion 25b. It described later sheet - by attracting surface 26a of the preparative conveying means 26 highest permeability sheet - when adsorbing bets S _1, the regulating member 30
Is adjusted so as to be located at a distance from the suction surface 26a of the sheet conveying means 26 to be described later by the thickness of _one sheet S1 (see FIGS. 7 and 8).

That is, by lowering a sheet conveying means 26 to be described later and raising the contact surface 25a (see FIG. 6), a plurality of water permeable sheets S stacked on the sheet receiving portion 25 are formed. _When the uppermost water permeable sheet S ₁ is adsorbed by the air suction force of the sheet conveying means 26 and is conveyed to the sheet placing portion, the uppermost water permeable sheet S _1. permeability sheet located under the - (see FIGS. 9 and 10) while regulated by regulating the movement member 30 bets S _1, sheet - permeability highest by preparative conveying means 26 - DOO S ₁ only Is sucked (see FIG. 11) and transported to the sheet placing portion 22f.

That is, the tip of the regulating member 30 is
Top permeable sheet S₁ Penetrated underneath and stacked
Highest permeable sheet S₁ Permeable sheet located under
S ₁ Sheet movement is regulated by the regulating member 30,
The uppermost permeable sheet S by the transport means 26₁ Adsorb
Like that. As a result, the sheet conveying means 26
The uppermost layer is stacked because it is sucked and transported by suction.
Permeable sheet S₁ Sheet S located underneath₁ of
With the movement restricted by the restricting member 30, the sheet transporter
The uppermost water permeable sheet S by the step 26₁ To adsorb
One sheet of water permeable sheet S by the sheet transport means 26₁ To see
Can be conveyed to the storage section 22f. Note that the sheet
Permeable sheet S received in inlet 25₁ Is a sheet transport
The water permeable sheet S is sent by the feeding means 26.₁ The suction force P_Three To
It is adapted to be transported by suction. Also, the contact surface
25 is raised and lowered by rod 25d of cylinder 25c
It has become.

The sheet conveying means 26 has a suction surface for adsorbing and conveying by the suction force of air.
The suction surface 26b provided at the tip of the
Elevating part 26c (for example, elevating cylinder)
And a rotating part 26d for rotating the elevating part 26c (for example,
The suction by the suction unit 26b is performed by a suction pump 22d to suck in outside air through the suction unit 26b and a passage (not shown).

Further, 22f in sheet - by noo unit, shea - - DOO conveyed by suction by the conveying means 26 is water-permeable sheet - sheet of bets S ₁ is placed noo unit 22f is a suction port of the lifting body 22 It is provided near 22a. The sheet - were placed noo portion 22f permeable sheet - DOO S ₁ is to - and transported to the preparative discharge side to the suction by the conveying means 26 - water permeability preparative discharging unit 28 sheet - DOO S ₁ Is to be put. Incidentally, shea - Under noo portion 22f, shea - noo portion 22f to put the water permeability sheet - the first network 22g for supporting the door S ₁ is, first under the first network 22g The second net 22h having a coarser mesh than the first net 22g is the second net 22h.
The lattice plates 22i are respectively positioned below the meshes 22h.

[0037] Therefore, as shown in FIG. 5, permeability sheet - When using preparative S _1, pre-permeable sheet - the door S ₁ sheet - previously laminated on the preparative receiving unit 25, sheet - DOO transport By operating the means 26, the adsorbing section 26b is positioned above the sheet receiving section 25. Thereafter, the adsorbing section 26b is lowered by the elevating section 26c (see FIGS. 6 to 10), and the water permeable sheet S is formed. ₁ is sucked by the suction force P ₃ (see FIG. 11). After the suction, the suction unit 26b is raised by the elevating unit 26c, and then the suction unit 26d by the rotating unit 26d.
The suction unit 26b is rotated so that the 26b is positioned above the sheet placing unit 22f, and after the rotation, the suction unit 26b is lowered by the lifting unit 26c to release the suction by the suction unit 26b. After releasing the suction, water permeability sheet - DOO S ₁ is - a state placed on noo portion 22f, the suction unit 26b, after rising by the elevation unit 26c, so as not to interfere with the lifting of the suction member 22 Then, it is rotated to a position above the sheet placing portion 22f or the sheet discharging portion 28.

Thereafter, the water permeable sheet S ₁ is placed in the sheet holder.
With the cylinder 22b ascending, the suction body 22 is brought into contact with the bottom of the container 21 and the lower part of the container 21 is closed (see FIG. 12). After sealing, a solution containing foreign matter selected by the third screen 4 and separated from the papermaking raw material (for example, a solution obtained by diluting the foreign matter separated from the papermaking raw material with water) is put into the container 21. In a state containing the solution of a predetermined amount into the container 21, the solution containing the fractionated from papermaking material by suction pump 22d foreign material permeable sheet - Inhaling through the door S _1, water permeability sheet - DOO While passing through the S _1, the foreign matter and fibers permeable sheet - can not pass through the door S _1, water permeable sheet as shown in FIG. 3 - sample foreign matter adhering sheet to preparative S ₁ - DOO S is formed . As a result, foreign substances on the sample sheet S can be visually observed, and the selected state of the papermaking raw material can be confirmed.

[0039] Thus, the sheet - according to Tomashin B, sheet fibers at less fiber itself during papermaking material - even not be formed bets, permeability sheet - for interposing the door S _1, paper stock, papermaking the solution containing the foreign substances separated from the raw material permeable sheet - by suction through the door S ₁ permeability sheet - the bets S ₁ can be attached to the fiber and foreign matters, and visually foreign matter, the papermaking material You can check the selected state. Sample sheet - after the bets S is formed, water-permeable sheet - DOO S ₁ is - noo 22
When the suction body 22 is placed on the bottom of the container 21, the suction body 22 is separated from the bottom of the container 21 by the cylinder 22b. After spaced, sheet - the suction portion 26b and the door transfer means 26 is operated sheet - is located above the noo portion 22f, then, it is lowered to the suction portion 26b by the lifting unit 26c, permeability sheet - DOO S ₁ the adsorbed by the suction force P _2. After the suction, the suction part 26b is raised by the elevating part 26c,
Thereafter, the suction section 26b is moved by the rotating section 26d to the sheet discharge section 28.
, So that it is positioned above the
To lower the suction portion 26b to release the suction by the suction portion 26b. After releasing the adsorption, the sample sheet S is placed in the sheet discharge section 28.

In the sheet discharge section 28, a heater (not shown) whose temperature can be optionally set is provided in the sheet discharge section 28, and a water permeable sheet placed in the sheet discharge section 28 by the heater is provided. -S
₁ may be dried, or a fixed contact portion 40 is provided above the sheet discharge portion 28, and the sheet discharge portion 28 is connected to the contact portion 40.
[The pressing force with the contact portion 40 can be set arbitrarily. ].

[0041] That is, those with respect to contact portion 40 - the door discharge unit 28 vertically movable and configured, shea - bets S ₁ - bets placed to the discharge unit 28 samples - DOO S (or water permeable sheet When preparing a sample sheet in which fibers and foreign matter are adhered to a sheet-like member formed by the fibers themselves contained in the papermaking raw material without using the sheet itself, the sheet discharging section 28 is raised to raise the sheet. The sample sheet S placed in the sheet discharging section 28 is pressed against the contact section 40 and heated by a heater (not shown) to dry the sample sheet S.

In this embodiment, the sheet discharging portion 28 is raised by moving means (for example, a rod which moves forward and backward by a cylinder), and the water permeable sheet placed on the sheet discharging portion 28 is moved. - Although DOO S ₁ is being into contact with the abutment 40, on the contrary, shea - bets discharge portion 28 is fixed and the moving means may be to move the abutting portion 40. Further, a heating means (for example, a heater) not shown may be provided in either the sheet discharge section 28 or the contact section 40.

In particular, the contact portion 40 has a passage 41 for guiding air and an air outlet provided at the end of the passage 41.
42, the passage 41 is provided with an extension 43 on the way to the air-outlet 42, and the air-outlet 42 is provided with a valve body.
It is opened and closed by 44. That is, water permeability sheet fibers and foreign materials in the papermaking raw material is attached - the door S ₁ sheet - the preparative discharge portion 28 and the contact portion 40 while pressing and clamping, the permeability sheet - not shown in preparative S ₁ heat - permeability by adding heat by data sheet - the door S ₁ is dried, dried, shea - the space between it and the preparative discharge portion 28 and the contact portion 40, air is provided to the contact portion 40 - outlet was a blown, those adhering to the contact portion 40 and the water-permeable sheet - - 42 from the air to disengage the door S ₁ from the contact portion 40 and - DOO discharge portion
Move to 28. The valve body 44 is water-permeable sheet - the door S ₁ sheet - when pressed by held between bets discharge portion 28 and the contact portion 40, an air - to close the outlet 42 (see FIG. 14), the abutment Part 40
Permeability sheet adhered to - when to disengage the door S ₁ from the contact portion 40, the air - an outlet 42 open air - outlet
Air is blown out from 42 (FIG. 15).
And FIG. 16).

That is, the valve body 44 is provided with a lid 44a for opening and closing the air-blowing port 42, and is connected to the lid 44a,
A valve member 44b movably housed in the valve 43;
The stopper member 44b moves so as to open
Stops when the valve body 44 is pressed,
The air outlet 42 is closed by the lid 44a. Incidentally, those outside of the contact portion 40 is water-permeable sheet - is forcibly guided passage 50 by steam suction force generated when heating the preparative S ₁ is provided, also on the outer periphery of the lid portion 44a is Te - Pa 44a 'are provided, permeability sheet from the contact portion 40 - DOO S ₁
Guides the air flow so that it can be easily separated. Further, a passage 44c through which air passes is provided in the stopper member 44b.

[0045] Incidentally, in particular, 100 shown in FIG. 6 is a supply means for supplying water to from container 21 outside of the container 21, water-permeable sheet the papermaking material in the container 21 - sucked through the door S ₁ During this time, water is supplied into the container 21 by the
Clean the inside or remove the papermaking raw material in the container 21 using a water-permeable seal.
After aspirating through the door S _1, by the supply means 100 containers 21
Water was supplied with cleaning the interior chamber 21 within, water permeability sheet - by suction through the door S ₁ sample - may create bets S. As a result, the foreign substances adhering to the inside of the container 21 are washed, and an accurate sample sheet S for confirming the selected state of the papermaking raw material can be produced. Reference numeral 101 denotes a stirring member which stirs the liquid received in the container 21 so as to prevent foreign matter from concentrating in one place when preparing the sample sheet S.

[0046]

According to the sheet machine of the first aspect,
Even if there are few fibers in the papermaking raw material and the fiber itself cannot be formed into a sheet, the papermaking raw material is sucked through the water-permeable sheet to form a water-permeable sheet in order to interpose the water-permeable sheet. A sample sheet to which fibers and foreign substances in the papermaking raw material are adhered can be prepared, and the sample sheet can be visually checked to confirm the selected state of the papermaking raw material.

Further, according to the sheet machine of the present invention, the liquid containing the papermaking raw material and the foreign matter separates the papermaking raw material and the foreign matter from the liquid. Even if the sheet cannot be formed by the
Since the sheet is interposed, the papermaking raw material is sucked through the water-permeable sheet to form a sample sheet in which the fibers and foreign substances in the papermaking raw material are adhered to the water-permeable sheet. -It is possible to visually confirm the selected state of the papermaking raw material.

According to the sheet machine of the third aspect, in addition to the effect of the first aspect of the present invention, when the water permeable sheet is adsorbed and conveyed, it is passed through the water permeable sheet. By making the suction force for sucking the papermaking raw material larger than the suction force by suction of the sheet conveying means, it is possible to make a sample sheet in which foreign matter is strongly sucked and adhered to the water-permeable sheet. In addition to this, it is possible to transport the water-permeable sheet while preventing the detachment of the foreign matter adhering to the water-permeable sheet, thereby making it possible to prepare a more appropriate sample sheet.

According to the sheet machine of the fourth aspect, in addition to the effect of the first aspect of the present invention, since the sheet transport means absorbs and transports by air suction force,
In order to adsorb the uppermost water-permeable sheet by the sheet conveying means while the movement of the water-permeable sheet located below the laminated uppermost water-permeable sheet is regulated by the regulating member. ,
One sheet of water-permeable sheet can be conveyed to the sheet holder by the sheet conveying means.

According to the sheet machine of the fifth aspect, in addition to the effect of the first aspect of the present invention, a sheet-permeating material of the sheet placing portion and a water-permeable sheet adhering to foreign matter are adsorbed. When the sheet is conveyed, the suction port is used as a combined port for sucking in air or discharging air, and the air is discharged from the combined port so that the water permeable sheet is separated from the sheet placing portion so that the water permeable sheet is separated. Can be easily detached from the sheet placing portion, and the adsorbing power of the water-permeable sheet can be weakened. Thus, a more appropriate sample sheet can be prepared.

According to the sheet machine of the sixth aspect, in addition to the effect of the first aspect of the present invention, the permeable sheet is heated by the heating means, and the permeable sheet is formed at the contact portion.
Even if the sheet adheres, the sheet discharging portion or the contact portion is moved by the moving means to separate the sheet discharging portion and the contact portion, and the air is blown out from the air outlet. If the water permeable sheet can be separated from the abutment portion and there is nothing to close the air outlet, steam generated by heating the water permeable sheet enters the passage through the air outlet. When the air is blown out from the air outlet, the vapor entering the passage is condensed, and water is sprayed on the permeable sheet to damage the sample sheet. The air outlet is opened and closed by a valve body, so that the above-described disadvantage can be solved.

According to the method for producing a sample sheet according to the seventh aspect, even if the papermaking raw material contains few fibers and the fibers themselves cannot form a sheet, the water-permeable sheet is interposed. By suctioning the papermaking raw material through the water-permeable sheet, a sample sheet having fibers and foreign substances in the papermaking raw material attached to the water-permeable sheet can be prepared, and the sample sheet is visually observed. Thus, it is possible to confirm the selected state of the papermaking raw material, and since the sheet conveying means adsorbs and conveys by suction of air, the uppermost water-permeable sheet laminated on the sheet receiving section. While the movement of the water-permeable sheet located below the sheet is regulated by the regulating member, only the uppermost water-permeable sheet is adsorbed by the sheet transport means, so that one sheet is transported by the sheet transport means. Can be transported to the sheet holder.

According to the method for producing a sample sheet according to the eighth aspect, even if the papermaking raw material contains few fibers and the fibers themselves cannot form a sheet, the water-permeable sheet is interposed. By suctioning the papermaking raw material through the water-permeable sheet, a sample sheet having fibers and foreign substances in the papermaking raw material attached to the water-permeable sheet can be prepared, and the sample sheet is visually observed. Thus, it is possible to confirm the selected state of the papermaking raw material, and to adsorb and transport the water-permeable sheet to which the fibers and foreign substances adhered to the papermaking raw material in the sheet placing section, and transport it. The air is allowed to flow out of the sheet holder toward the water-permeable sheet so as to leave the sheet holder, and the water-permeable sheet is sealed.
It is easy to separate because it is detached from the seat holder, and the adsorbing power of the water-permeable sheet can be weakened. The reduced adsorbing power prevents the foreign substances adhering to the water-permeable sheet from being sucked. And a more appropriate sample sheet can be created.

Further, according to the method for producing a sample sheet according to the ninth aspect, a water-permeable sheet is interposed even if the papermaking raw material contains few fibers and cannot form the sheet itself. Therefore, the papermaking raw material can be sucked through the water-permeable sheet to form a sample sheet in which a foreign substance is attached to the water-permeable sheet. The selected state can be checked, and the permeable sheet is heated by the heating means, and after the permeable sheet is dried, the interval between the sheet discharge portion and the contact portion is increased, and the contact portion is increased. Even if a water-permeable sheet adheres to the air-permeable sheet, air can be blown out from the air-blowing port to release the water-permeable sheet from the contact portion, and the air-blowing sheet closes the air-blowing port. If not, steam from heating the permeable sheet will enter the passage through the air outlet. , Air - air from the air outlet -
When the air is blown out, the vapor that has entered the passage is condensed, causing a disadvantage that water is blown to the permeable sheet. In the present invention, the air outlet is opened and closed by a valve body. Therefore, the above-described inconvenience can be solved.

According to the method for producing a sample sheet according to the tenth aspect, even if the papermaking raw material contains few fibers and the fibers themselves cannot form a sheet, the water-permeable sheet is interposed. By suctioning the papermaking raw material through the water-permeable sheet, a sample sheet having fibers and foreign substances in the papermaking raw material attached to the water-permeable sheet can be prepared, and the sample sheet is visually observed. It is possible to check the selection of papermaking raw materials, and since the sampling supply passage is connected to the papermaking production line, the papermaking raw materials can be selected without having to go to the relevant location on the production line. A sample sheet for checking the condition can be made.

According to the method for manufacturing a sample sheet according to the eleventh aspect, in addition to the effect of the tenth aspect described above, the foreign matter attached to the sampling supply passage is washed with water. Since the foreign matter is included in the sampling, an accurate sample sheet for confirming the selected state of the sampling papermaking raw material can be produced.

[Brief description of the drawings]

FIG. 1 is a sampling system according to an embodiment of the present invention;
FIG. 2 is a schematic configuration diagram schematically showing a computer.

FIG. 2 is a schematic perspective view of a water permeable sheet.

FIG. 3 is a schematic perspective view of a sample sheet to which foreign matter has adhered.

FIG. 4 is a schematic sectional view of the sheet machine of FIG. 1;

FIG. 5 is a schematic perspective view of a part of the inside of FIG. 4 viewed obliquely for explaining a sheet conveying means of the sheet machine according to one embodiment of the present invention.

FIG. 6 to FIG. 11 show sheets of the water-permeable sheet received in the sheet receiving section one by one by sheet conveying means.
FIG. 6 is a schematic explanatory view for explaining a pre-process of transporting the sheet to the sheet placing section, and FIG. 6 is a schematic explanatory view of a state in which the water permeable sheet is received by the sheet receiving section.

FIG. 7 is a schematic explanatory view showing a state in which the sheet conveying means is lowered and a contact surface of a sheet receiving section is raised.

FIG. 8 is a schematic partially enlarged explanatory view showing a part of FIG. 7 in an enlarged manner.

FIG. 9 is a state in which the regulating member is located below the uppermost permeable sheet and restricts the movement of the permeable sheet located below the uppermost permeable sheet. FIG. 7 is a schematic explanatory view showing a state in which the uppermost water-permeable sheet is being adsorbed by the sheet conveying means.

FIG. 10 is a schematic partially enlarged explanatory view showing a part of FIG. 9 in an enlarged manner.

FIG. 11 is a schematic explanatory view of a state in which a sheet transporting means absorbs the uppermost water-permeable sheet and transports the sheet to a sheet placing portion.

FIG. 12 is a schematic cross-sectional view showing a state in which a papermaking raw material is sucked through a water-permeable sheet placed on a sheet holder.

FIG. 13 is a schematic partially enlarged sectional view showing a part of FIG. 12 in an enlarged manner.

FIGS. 14 to 17 are schematic explanatory views for explaining a step of drying a permeable sheet placed in a sheet discharge section, and FIG. 14 shows the permeable sheet. FIG. 9 is a schematic explanatory view of a state where the sheet is held between a contact portion and a contact portion and heated.

FIG. 15 is a schematic explanatory view of a state in which the sheet discharge section is lowered, air is blown out from the contact section, and the water-permeable sheet attached to the contact section is released.

FIG. 16 is a schematic partial enlarged explanatory view showing a part of FIG. 15 in an enlarged manner.

FIG. 17 is a schematic sectional view taken along line XX of FIG. 16;

[Description of Signs] B: Sheet machine, S _1: Permeable sheet, 22: Lifting body, 22a: Suction port, 22f: Sheet -Sheet holder, 25 ... sheet receiving section, 26 ... sheet transport means

Claims (11)

[Claims] 1. A container provided with an opening at a bottom for containing a liquid containing papermaking raw materials and foreign matter, a sheet receiving portion for receiving a water permeable sheet, and the water permeation received by the sheet receiving portion. Sheet transport means for adsorbing and transporting the conductive sheet, and the water permeable sheet, which is configured to be able to move up and down freely at the bottom of the container, and which is adsorbed and transported by the sheet transport means. An elevating body provided with a sheet holder on which the sheet is placed, and a suction port provided in the elevating body so as to face the sheet holder, and communicating with the suction port, An air passage serving as an air passage on the suction side of the vacuum pump, and the water permeable sheet placed on the sheet holding portion being adsorbed by the sheet conveying means and conveyed to the discharge side for water permeation. A sheet discharging section for placing a sex sheet thereon. 2. The sheet machine according to claim 1, wherein the liquid containing the papermaking raw material and the foreign matter is a liquid that separates the papermaking raw material and the foreign matter from the liquid and contains a large amount of foreign matter. 3. The sheet machine according to claim 1, wherein a suction force for sucking the papermaking raw material through the water-permeable sheet is larger than a suction force by suction of the sheet conveying means. 4. The sheet conveying means has an adsorption surface for adsorbing and conveying by suction of air, and the sheet receiving portion receives the laminated water-permeable sheet. The member is located on a side surface of the laminated water-permeable sheet, moves in the horizontal direction, and enters or retreats between the laminated water-permeable sheets. One sheet of water permeable sheet from the adsorption surface
The leading end of the regulating member is made to penetrate under the laminated uppermost water-permeable sheet, and the laminated uppermost water-permeable sheet is positioned. The uppermost water-permeable sheet is adsorbed by the sheet transport means in a state where the movement of the water-permeable sheet located below the sheet is regulated by the regulating member. The sheet machine according to 1. 5. An air passage communicating with the suction port and serving as an air passage on the suction side of the vacuum pump is switched by a switching means to switch to a suction side or a discharge side of the vacuum pump. 2. The sheet machine according to claim 1, wherein the air inlet or the air outlet serves as a combined port. 6. A contact portion provided to face the sheet discharge portion, a passage for guiding air and an air outlet provided at a tip of the passage are provided in the contact portion. The passage is provided with an extension part on the way to the air-outlet, the air-outlet is opened and closed by a valve body, and the valve body is a lid that opens and closes the air-outlet. When,
A stopper member connected to the lid portion and movably housed in the extension portion, wherein the valve member is moved by the air so that the air-opening port is opened by the stopper member; When the valve body is pressed against the contact part of the expansion part and stopped, the air outlet is closed by the lid part, and the water permeation placed on the sheet discharge part Moving means for moving the sheet discharging portion or the contact portion so that the sex sheet comes into contact with the contact portion; and a moving means for moving the sheet discharging portion or the contact portion, and provided at either the sheet discharging portion or the contact portion. ,
2. A sheet machine according to claim 1, further comprising heating means for heating said water-permeable sheet sandwiched between said sheet discharging portion and said contact portion. 7. A liquid containing papermaking raw material and foreign matter is sucked through a water-permeable sheet placed on a sheet holder to forcibly pass through the water-permeable sheet. A method for producing a sample sheet by adhering fibers and foreign substances in papermaking raw materials that cannot pass through the sheet to the water-permeable sheet, wherein the sample sheet is placed on the sheet holder. The permeable sheet is a sheet
The water permeable sheet received by the sheet receiving section by the sheet conveying means is adsorbed and conveyed, and the plurality of the water permeable sheets stacked on the sheet receiving section are the most permeable sheets. When the upper permeable sheet is adsorbed by the air suction force of the sheet conveying means and is conveyed to the sheet placing portion, the lower permeable sheet is positioned below the uppermost permeable sheet. In a state where the movement of the permeable sheet is regulated by a regulating member, the sheet transporting means moves the uppermost permeable sheet.
A method for producing a sample sheet, wherein only the sheet is adsorbed and transferred to the sheet holder. 8. A liquid containing papermaking raw materials and foreign matter is sucked through a water-permeable sheet placed on a sheet holder to forcibly pass through the water-permeable sheet. A method for producing a sample sheet by adhering fibers and foreign matter in the papermaking raw material that cannot pass through the sheet to the water-permeable sheet, wherein When adsorbing and transporting the water permeable sheet to which the fibers and the foreign matter in the raw material are attached, the water permeable sheet is separated from the sheet storage section by the water permeable sheet so as to be separated from the sheet storage section. A method for producing a sample sheet, comprising: allowing air to flow out toward a permeable sheet to release the water-permeable sheet from the sheet receiving portion. 9. A liquid containing papermaking raw material and foreign matter is sucked through a water permeable sheet placed on a sheet holder to forcibly pass through the water permeable sheet. A method for producing a sample sheet by adhering fibers and foreign matter in a papermaking raw material that cannot pass through the sheet to the water-permeable sheet, wherein the fiber and the foreign matter in the papermaking raw material are produced. The water-permeable sheet to which is adhered is sandwiched and pressed by a sheet discharging portion and a contact portion provided to face the sheet discharging portion, and
The permeable sheet is dried by applying heat to the permeable sheet, and after drying, the space between the sheet discharge section and the contact section is widened, and the air provided in the contact section is increased. Air is blown out from a blow-out port, and the water-permeable seal attached to the contact portion is blown out.
The seat is separated from the contact portion and moved to the sheet discharge portion, and an air outlet provided in the contact portion is provided with a valve element for opening and closing the air outlet.
The valve body closes the air outlet when the water permeable sheet is sandwiched and pressed between the sheet discharging portion and the contact portion, and the valve is attached to the contact portion. The method for manufacturing a sample sheet according to claim 1, wherein the air outlet is opened and air is blown from the air outlet when the water permeable sheet is separated from the contact portion. 10. A first discharge passage connected to a papermaking production line and leading a liquid containing papermaking raw material and foreign matter, and a first discharge passage connected to the papermaking production line and leading a liquid containing papermaking raw material and foreign matter, and A second discharge passage different from the first discharge passage, a sampling supply passage for supplying water, connecting to the first discharge passage and the second discharge passage, and supplying the liquid; and the first discharge passage. A first opening / closing member provided in the middle of the passage and opening and closing the first discharge passage; and a second opening / closing member provided in the middle of the second discharge passage and opening and closing the second discharge passage. The liquid supplied from the sampling supply passage is sucked through a water-permeable sheet to forcibly pass through the water-permeable sheet, and the liquid in the papermaking raw material that cannot pass through the water-permeable sheet. Fiber and foreign matter adhere to the water-permeable sheet A sample sheet manufacturing method for manufacturing a sample sheet by opening the first opening / closing member and passing the liquid through the first discharge passage and the supply passage for sampling. A method for producing a sample sheet, which is directed to a sheet. 11. A first discharge passage connected to a papermaking production line and leading a liquid containing papermaking raw material and foreign matter, and a first discharge passage connected to the papermaking production line and leading a liquid containing papermaking raw material and foreign matter. A second discharge passage different from the first discharge passage, and a screen for carefully selecting the liquid guided by the second discharge passage or the first discharge passage and discharging a solution containing separated foreign matter. A water supply, connected to the passage, substantially connected to the screen, and a sampling supply passage; and the liquid supplied from the sampling supply passage is selected by the screen. The solution containing the separated foreign matter is sucked through a water-permeable sheet to forcibly pass through the water-permeable sheet, and fibers and foreign matter in the papermaking raw material that cannot pass through the water-permeable sheet. Is adhered to the permeable sheet. A sample sheet manufacturing method for manufacturing a sample sheet by opening the first opening / closing member and guiding the sample sheet to the screen via the first discharge passage and the sampling supply passage. Thereafter, the first opening / closing member is closed, water is supplied to the sampling supply passage, the inside of the sampling supply passage is washed, and the washed water is guided to the screen. The screen material is carefully selected by the screen, a solution containing foreign matter that cannot be separated is passed through the water-permeable sheet, and fibers and foreign matter in the paper material that cannot pass through the water-permeable sheet are passed through the water-permeable sheet. A method for producing a sample sheet, comprising attaching the sample sheet to a sex sheet.