JPH07310299A - Method for making circular sheet and apparatus therefor - Google Patents

Abstract

PURPOSE:To provide a method for making a circular sheet suitable for production of a friction material stretched and provided to a friction plate, e.g. assembled in clutch, etc., and to provide a device therefor. CONSTITUTION:This apparatus 1 for making a circular sheet-like material is equipped with a raw material feeder 10, a constant rate discharge pump 19, a sheet-like material-making device 20 and a dry press device 50 and the sheet-like material-making device 20 is equipped with a circular carrier net 32 below the interior of a sheet-like material-making tank 21, and a raw material escape hole 34 is provided in the ring of the carrier net 32, and further, a stirring propeller 23 is provided in the vicinity of the carrier net 32. The stirring propeller 23 is provided under the circular carrier net 32.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for making an annular papermaking product, which is suitable for producing a friction material stretched on a friction plate incorporated in a clutch device or the like.

[0002]

BACKGROUND OF THE INVENTION For example, a clutch plate for a vehicle, especially a friction plate in a wet multi-plate clutch has a structure in which friction materials are stretched on both sides of an annular metal friction plate body. This friction material is being replaced with a conventional resin-molded material such as a resin mold, and nowadays, various types of friction materials are mixed with a pulp material, and a sheet made by a papermaking technique is being used as a starting material. By the way, even in such a method, conventionally, after the friction material raw material sheet is made by, for example, a Fourdrinier paper machine or the like, it is cut out into a required shape such as an annular shape and used. However, in such a method, the yield is naturally remarkably low.
As disclosed in Japanese Patent Laid-Open No. 91294 or Japanese Patent Application Laid-Open No. 3-76780, a method of making a friction material into a necessary annular shape from the beginning has been proposed. However, the disclosure contents of these prior arts basically disclose the idea of making a product into an annular shape, but have not yet reached the actual manufacturing efficiency or accuracy requirements, and further improvement is required. It was wanted.

In order to solve such a problem, the applicant of the present application proposes a method for making a friction material in an annular shape with accurate dimensional accuracy and uniformly, as disclosed in JP-A-4-327291. did. Specifically, as shown in FIG. 12 (a), a dispersion protrusion having a conical shape with a slightly flat central portion is provided, and the liquid component a ₀ in the raw material liquid A _{0 is} naturally flowed down from the carrier net 32 ′ for a certain period of time. Later, it was forcibly sucked. According to the present invention, the thickness and thickness of the material fibers and the like in the edge portion can be made uniform, and a papermaking method and apparatus that do not require punching have been put into practical use, and a tentative solution to the above problems has been found. However, due to the bounce from the inner wall of the papermaking tank, a slight unevenness in thickness occurs between the outer peripheral portion and the inner peripheral portion in the radial direction, as shown in FIG. 12 (b), and the product component a ₁ in the raw material liquid A ₀ There is still room for improvement, such as non-uniformity in the thickness direction due to differences in specific gravity. Furthermore, since the conical dispersion projection is provided in the central portion, the product component a ₁ after papermaking cannot be taken out from above, and the form of the automation line is limited. Specifically, the papermaking cup 21 'containing the raw material liquid A ₀ used for one papermaking is separable from the member holding the carrier net 32', and the carrier net 32 'and the product component a remaining thereon. _It was essential to move ₁ and ₁ at the same time.

[0004]

The present invention has been made in view of such a background, and the thickness of the outer peripheral portion and the inner peripheral portion in the radial direction is uniform, and the product components in the thickness direction are not uniform. The present inventors have attempted to develop a method and apparatus for producing a ring-shaped paper product that is not uniform and can be precisely paper-made and can use a simple line configuration.

[0005]

[Constitution of the invention]

[Means for Achieving the Object] According to the method for producing an annular papermaking product of claim 1, a certain amount of a raw material containing at least a pulp raw material and a friction material component in a dispersed state is supplied to a papermaking tank, and a carrier is provided inside the papermaking tank. In a method of forming a net and discharging liquid components in the raw material liquid from the carrier net to make a product of a predetermined shape, the raw material liquid is extracted by forced suction in a state where forced convection is made inside the paper making tank. Characterize.

[0006] The papermaking apparatus for an annular papermaking machine according to claim 2 comprises a raw material supply device, a constant amount discharge pump, a papermaking main body device, and a drying press device, wherein the papermaking main body device is inside a papermaking tank. An annular carrier net is provided below, a material escape hole is provided in the annular ring of the carrier net, and a stirring propeller is provided near the carrier net.

Further, in addition to the above requirements, the apparatus for producing an annular papermaking product according to a third aspect is characterized in that the stirring propeller is provided below an annular carrier net. The above objects are intended to be achieved by these inventions.

[0008]

According to the invention described in claim 1, since the raw material liquid is extracted by forced suction in a state where forced convection is performed inside the papermaking tank, various materials contained in the raw material liquid are evenly dispersed. Papermaking in the state can be performed.

According to the second aspect of the invention, since the material escape hole is provided in the ring of the carrier net, the material liquid reaches the carrier net from both inside and outside the carrier net. Further, since a stirring propeller is provided near the carrier net, the raw material liquid is subjected to forced convection so that various materials contained in the raw material liquid are evenly dispersed.

According to the third aspect of the present invention, since the stirring propeller is provided below the annular carrier net, the various materials contained in the raw material liquid, particularly the material of critical importance, can be effectively dispersed. Therefore, according to the present invention, the stirring propeller causes forced convection in the raw material liquid in the papermaking tank, so that uneven distribution of the raw material material is eliminated at the time of papermaking, and a smooth, thick and thin product is obtained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to illustrated embodiments. In the following description, the papermaking apparatus 1 for carrying out the present invention will first be specifically described, and the papermaking method of the present invention will also be described while explaining the operating state thereof. First, as shown in FIGS. 1 to 4, the entire structure of the papermaking apparatus 1 is viewed in plan with respect to an appropriate frame 2 as a raw material area E ₁ , a papermaking area E ₂ , a transfer area E ₃ , a drying press area E ₄ , and a stock. Area E ₅ is divided. Then, in each of these areas, the raw material supply device 10, the papermaking main body device 20, the transfer device 40,
This is configured by incorporating the dry press device 50 and the product stocker 80. Incidentally, such a device is disclosed in Japanese Patent Laid-Open No.
No. 156592, the configuration is as shown in FIGS.

These will be described below in order. First, the raw material supply device 10 comprises a main raw material tank 11 and an auxiliary raw material tank 12 provided as necessary, and a raw material transfer pipe 13 connects them. Each of the main raw material tank 11 and the auxiliary raw material tank 12 has a raw material agitating device 15, which is a stirring propeller 18 that substantially performs a stirring action at the tip of a main shaft 17 driven by a drive motor 16. It is equipped with a stirring propeller 18
As shown in FIG. 2, it is preferable that the mounting positions of (1) and (2) are located at positions eccentrically located from the centers of the main raw material tank 11 and the auxiliary raw material tank 12 in order to improve the stirring state. The main raw material tank 11 in the raw material supply device 10 is provided with a constant amount discharge pump 19 for supplying the raw material liquid A ₀ to the papermaking main body device 20 as shown in FIG. It is connected to the papermaking main body device 20. The constant-quantity discharge pump 19 sets the supply amount of the raw material liquid A ₀ according to the specifications of the final product.
In this example, the discharge amount per time is 4 liters.

Next, the papermaking main body device 20 will be described.
Papermaking main unit 20 withdrawn liquid component a ₀ from the material liquid A _0, is a device that performs an action out paper making the product component a _1.
This machine comprises a papermaking tank 21 and a papermaking head 30 which can be immersed in the raw material liquid A ₀ inside the papermaking tank 21. First, the papermaking tank 21 has a capacity capable of storing a fixed amount of the raw material liquid A ₀ , and as shown in FIG. 5, several bottom parts of the papermaking tank 21 are provided with stirring propellers 23 at six positions. Stirring propeller 2
As shown in FIG. 7, reference numeral 3 is always driven to rotate by the drive motor 24 to forcibly cause convection in the raw material liquid A ₀ in the papermaking tank 21.

A pair of the papermaking tanks 21 are provided, and the papermaking operation is performed at two places in one step to further improve the manufacturing efficiency. Correspondingly, the transfer device 40, the drying press device 50, and the product stocker 80 described below are provided with two members having the same structure to handle the products A ₁ as a set.

First, the papermaking head 30 has a perforated plate 31,
The perforated plate 31 has a large number of liquid drain holes 31a formed in an annular shape near the peripheral edge thereof, and further above the carrier net 32.
Are stretched so as to be held by the carrier net pressing ring 33. This carrier net holding ring 3
3 has an inner carrier net pressing ring 33a inside the liquid drain hole 31a and an outer carrier net pressing ring 33b outside, and holds the carrier net 32 so as to sandwich it.

In the papermaking head 30 having such a structure, the papermaking tank 2 is provided below the perforated plate 31 as a drainage chamber 35.
The liquid component a ₀ in the raw material liquid A ₀ taken in 1 is discharged. Further, the papermaking head 30 itself is configured to move up and down. That is, an elevating rod 37 of an elevating shifter 36 to which an air cylinder is applied, for example, is connected to the lower side of the plate 31 and the elevating rod 37 has a hollow inside to form a drain hole 37a. The lower end of the elevating rod 37 is covered with a drain pipe 38 formed below the elevating shifter 36 as shown in FIG. 6, and a drain pipe 39 is connected to the drain pipe 38.

Further, the material plate escape hole 34 is provided in the circular ring of the carrier net 32 provided near the peripheral edge of the plate plate 31.
To provide. This is a hole provided so that convection of the raw material liquid A ₀ caused by the stirring propeller 23 located below the papermaking head 30 reaches the carrier net 32 from the inside of the annular carrier net 32. Therefore, it is preferable that the material escape hole 34 is as wide as the strength of the perforated plate 31 allows. By providing the raw material escape hole 34, the convection of the raw material liquid A ₀ reaches the carrier net 32 from both inside and outside of the annular carrier net 32.

Next, the unprocessed product A which has been made into paper.
₁ (Note that the product A ₁ is completed when all the steps are finished. In the following description, after the product component a ₁ is extracted from the raw material liquid A ₀ by the papermaking main body device 20,
The transfer device 40 for transferring the product A _{1 (} which is denoted by the reference numeral as product A ₁ ) even during the manufacturing process from the time of receiving the dry press process will be described.

As shown in FIG. 4, the transfer device 40 receives the product component a ₁ produced in the papermaking area E ₂ , and then passes it through the dry press area E ₄ to the stock area E ₅ to the product A ₁ Is a so-called vacuum hoist type device provided so as to reciprocate between the papermaking area E ₂ to the stock area E ₅ . That is, as shown in FIG. 8, a sliding sub-frame 42 having a guide rail 41 is provided for a rail holder provided for an appropriate frame 2,
This is reciprocated by a certain stroke by a shifter 43 using, for example, an air cylinder.

A transfer head 45 is provided for the sliding sub-frame 42, which is a set of two transfer heads, a first transfer head 45I and a second transfer head 4.
5II, third transfer head 45III, fourth transfer head 45IV
Consists of. The first transfer head 45I is the papermaking main unit 2
The product A ₁ is transferred between the position of the papermaking head 30 at 0 and the drying device 50A of the drying press device 50, which will be described later. Second transfer head 45
II serves to transfer the product A ₁ processed by the drying device 50A to the next step, the primary pressing device 50B.
Further, the third transfer head 45III serves to transfer the product A ₁ processed in the primary pressing device 50B to the secondary pressing device 50C. Further, the fourth transfer head 45IV serves to feed the product A ₁ processed by the secondary pressing device 50C into the stock area E ₅ .

Since the transfer heads 45 have almost the same structure, they will be described with common reference numerals. First, as shown in FIG. 8, the transfer head 45 comprises a disc-shaped holding disc 48 attached to the lower end of an elevation rod 47 in an elevation shifter 46. Due to the shape of the product A ₁ , this holding plate 48 is provided with an operating hole 48a near the periphery of which the air is sucked or blown. And this operating hole 48
Appropriate suction means is connected to a.

Next, the dry press device 50 will be described. The drying press device 50 includes a dryer-like drying device 50A that blows warm air, a primary pressing device 50B that is equipped with a heater for thermal drying, and a secondary pressing device 50C that similarly performs precision dimension finishing. First, the drying device 50A is provided at a position closest to the papermaking main body device 20 side in the drying press area E ₄ , and the movable pedestal 51 is provided.
Is configured to move back and forth between the transfer area E ₃ and the dry press area E ₄ .

As an example, two guide rails 5 are provided.
On the other hand, as described above, the two mounting plates 54 are provided on the frame 2 due to the simultaneous extraction of two products A ₁ in one process as described above.

Next, the primary pressing device 50B and the secondary pressing device 50C will be described. Since both of these devices have basically the same configuration, both will be described below with common reference numerals. First, the movable pedestal 61 is moved to the transfer area E.
_It is configured to traverse between ₃ and the dry press area E ₄ . That is, for example, two mounting plates 64 are provided for the frame 2 due to the fact that two products A ₁ are simultaneously drawn out in one process on the two guide rails 62 as described above. It is a thing.

Further, the mounting board 64 has a heater mechanism therein for drying the received product A ₁ which is being processed. And a mounting board 64 on the movable pedestal 61
And a press head 70 which will be described later perform a pressing action, and the press head 70 will be described below.

The press head 70 is provided in the dry press area E ₄ and is controlled up and down.
The lower end of the ascending / descending portion has a heater function inside.

Next, the product stocker 80 provided in the stock area E ₅ will be described. As shown in FIG. 2, the rotary table 81 is provided with four cylindrical holding sleeves 82 as an example, as shown in FIG.
Is configured so as to be capable of reciprocating rotary motion within a range of 180 °, for example. Reference numeral 90 denotes a control panel for the entire apparatus, which includes various operation buttons, indicators, warning lamps, and the like.

The specific structure of the papermaking apparatus 1 according to the present invention is as described above, and the product A ₁ is manufactured while operating the following papermaking method. (1) Raw material adjustment (see FIGS. 1 to 4) First, as a raw material, the final product is a friction material in the clutch plate or the like as described above. Organic fibers, carbon- or ceramic-based inorganic fibers, short metal fibers, diatomaceous earth, calcium carbonate, etc. are mixed according to the purpose of use, and thermosetting resins, etc. are mixed or impregnated into the raw materials. Raw material liquid A ₀
Mix in. The raw material liquid A ₀ is filled in the main raw material tank 11 and the auxiliary raw material tank 12, and, for example, when the raw material liquid A _{0 in the} main raw material tank 11 becomes a certain amount or less, the raw material liquid A ₀ is sequentially fed from the auxiliary raw material tank 12. The solution A ₀ is replenished.

There are some friction materials of this type, such as the above-mentioned inorganic fillers, which have a relatively large specific gravity and a small particle size, and these parts are simply stored in the state where the raw material liquid A ₀ is stored. Because of the sedimentation below, the main raw material tank 11 and the auxiliary raw material tank 12 are equipped with a stirrer 15 to keep the raw material in a stirring state during the operation. Specifically, the stirring propeller 18 in the stirring device 15 is driven by the drive motor 16 to constantly stir the raw material liquid A ₀ in the tank.

A constant amount (4 liters) of the raw material liquid A ₀ is constantly supplied to the papermaking tank 21 in the main body 20 of the papermaking machine at each papermaking process through the raw material transfer pipe 13 by the constant amount discharge pump 19. To be done. Of course, as a characteristic configuration of the present invention, the stirring propeller 23 is driven by the drive motor 24 so that the raw material liquid A ₀ is constantly stirred even in the papermaking tank 21.

(2) Papermaking (see FIGS. 6 and 7) In such a state, the papermaking head 30 in the papermaking main body 20 draws out the product component a ₁ from the raw material liquid A ₀ . First, as shown in FIG. 7, the state in which the papermaking head 30 in the papermaking tank 21 is located at the bottom dead center is defined as a starting state. In this state, the liquid component a ₀ in the raw material liquid A ₀ in the papermaking tank 21 is discharged, and the liquid component passes from the carrier net 32 through the liquid drain hole 31a in the perforated plate 31 therebelow, and then the liquid drain chamber. After passing through the drainage hole 37a opened at the center of the elevating rod 37, the drainage pipe 38 is reached, and further discharged from the drainage pipe 39 to the outside. For this discharge, a vacuum device is positively connected to the drain pipe 39 so as to suck out the liquid component a ₀ . In some cases, it is also preferable to use natural drainage for a certain period of time and then perform forced drainage. From this state, the lifting shifter 36 is operated to lift the lifting rod 37.
Is raised, the papermaking head 30 floats above the liquid surface of the raw material liquid A ₀ .

[0032] Then at the product component a ₁ raw material liquid A in ₀ on the carrier net 32 is issued paper making in accordance with the liquid component a ₀ is removed from such material liquid A _0. At this time, as described above, when the natural flow is initially performed and then the forced drainage is performed, the product component a ₁ is deposited in a thin web on the carrier net 32 to some extent in the natural flow, and the product component a ₁ is the liquid component a _1. If the product component a ₁ is prevented from flowing down with ₀ and forcedly drained all at once after such a state, the product component a ₁ can be reliably extracted, and the process time can be shortened. . As described above, as a characteristic configuration of the present invention, since the raw material liquid A ₀ is constantly stirred in the papermaking tank 21 by the stirring propeller 23, the convection of the raw material liquid A ₀ passes through the raw material escape hole 34. From the inside and outside of the path on the inner wall side of the papermaking tank 21, the annular carrier net 32 is reached.

(3) Transfer to the drying device and drying (see FIGS. 4 and 8) Thus, the carrier net 32 in the papermaking head 30
After the product component a ₁ has been extracted onto the top, the annularly extracted product component a ₁ is sent to the drying device 50A by the transfer device 40. That is, the sliding sub-frame 42 of the transfer device 40 is in the state of being closest to the papermaking main body device 20 side, and in this state, the first to fourth transfer heads 45I to 45IV provided on the sliding sub-frame 42 are lowered at once. It descends to the dead point. Of course, for convenience of explanation, one cycle of the papermaking process is sequentially described from the initial state, but the product A already produced in the previous cycle, the previous two cycles, etc.
_{Since 1} exists, these are sent to the next process by the second transfer head 45II to the fourth transfer head 45IV.

Thus, the lifting rod 4 of the transfer head 45
When 7 reaches the bottom dead center, first, the holding plate 48 provided in the first transfer head 45I is sucked through the operating hole 48a. At that time, the holding plate 48 lowered into the papermaking tank 21 sucks the annular product component a ₁ that has been drawn out on the carrier net 32, and thereafter, the lifting rod 47.
The holding plate 48 moves upward with the rise of the. After reaching the top dead center, the sliding sub-frame 42 moves toward the product stocker 80 by the horizontal movement of the shifter 43.

At this time, immediately below the first transfer head 45I to the fourth transfer head 45IV, the mounting plates 54 and 64 of the movable pedestals 51 and 61 forming a part of the drying press device 50 are in a standby state, that is, in the front. Located close to the side. When the transfer head 45 descends again in such a state, the annularly machined product component a ₁ held by suction in the first transfer head 45I is transferred onto the mounting plate 54 in the drying device 50A. To do. During this transfer, air is positively sucked on the mounting board 54 to positively hold the product A ₁ which is in the process of processing (from this stage, the product extracted in the annular shape as described above). Label component a ₁ as product A ₁ ). Meanwhile, at the same time, the first transfer head 45I
The holding plate 48 in FIG. 2 stops the suction action, and makes it possible to smoothly remove the product component a ₁ that has been formed into an annular shape from the working hole 48a in a state where air is blown out.

After the product A ₁ which is being processed in this way is transferred to the mounting board 54 of the drying device 50A, the transfer heads 45 of the transfer device 40 again rise to the top dead center, and the next operation is performed. The sliding sub-frame 42 is again operated toward the papermaking main body device 20 side. On the other hand, in the drying press device 50, the mounting board 54 in the drying device 50A is used.
Moves to the dry press area E ₄ side. Then, here, hot air is supplied to the drying device 50A so as to dry it. Then, after the drying is completed, the placing board 54 is again used.
The movable pedestal 51 equipped with is returned to the transfer area E ₃ side and returned to the standby position for transferring to the next primary press device 50B.

(4) Primary press (see FIG. 4) That is, the product A _{1 which} has returned to the transfer area E ₃ and is in the process of being processed is sucked and held again by the second transfer head 45II which has been waiting above it. Sliding subframe 4
Following the transfer of No. 2 to the stock area E ₅ side, it moves to the position where the primary pressing device 50B is provided. Of course, at this time, the first transfer head 45I holds the next product component a ₁ extracted. Then, the product A _{1 which} is in the process of being moved to the side of the primary press device 50B is next waiting on the side of the transfer area E _{3 in the} primary press device 50.
The second transfer head 45II descends toward the mounting board 64 of the movable pedestal 61 in B, and the product A ₁ which is being processed is transferred onto the mounting board 64.

The product A which is being processed on the mounting board 64 in this way
_{After 1} is placed, the movable pedestal 61 moves to the dry press area E ₄ side, is pressed by the press head 70 in the primary press device 50B, is pressed to a constant thickness, and is heated to remove its moisture. Further removed. That is, both the press head 70 and the mounting board 64 in the primary press device 50B have a heater function inside,
It is in a state of being constantly heated, and this heat removes water from the product A _{1 during} processing.

(5) Secondary Press (See FIG. 4) The product A ₁ thus primary pressed in the drying press area E ₄ is moved to the transfer area E ₃ side by moving the movable pedestal 61 again to the transfer area E _3. Returned to ₃ . At this time, the third transfer head 45III is already located immediately above the third transfer head 45III, and the third transfer head 45III descends and the mounting board 64 is lowered.
The product A ₁ in the middle of processing is suction-held and lifted, and further moves to the secondary press device 50C side as the sliding sub-frame 42 of the transfer device 40 moves to the stock area E ₅ side. At this time, the mounting board 64 constituting the secondary pressing device 50C is on standby immediately below it, and the product A ₁ is transferred onto the mounting board 64 in the secondary pressing device 50C.

In this case, the product A ₁ is transferred to the dry press area E ₄ in the same manner as in the process of the primary press device 50B, and is pressed by the press head 70 of the secondary press device 50C, so that a predetermined amount is obtained. It is dried while being crushed to the thickness. Then, when the secondary pressing process is completed, the movable pedestal 61 moves again to the transfer area E ₃ side. At this time, as in the previous step, the sliding sub-frame 42 of the transfer device 40 is already at the position closest to the papermaking area E ₂ side, and therefore, the second sub-pressing device 50C has a second sub-frame 42 immediately above the mounting board 64. The four transfer heads 45IV are in a standby state. Then, the fourth transfer head 45IV descends so as to suck and hold the product A ₁ on the mounting board 64.

(6) Stock (see FIGS. 1 and 4) Then, the fourth transfer head 45IV sucking and holding the product A ₁ rises again and moves toward the stock area E ₅ side of the sliding subframe 42 of the transfer device 40. As you move
It reaches the position of the product stocker 80. At this time, the product stocker 80 has two holding sleeves 82 on standby immediately below the fourth transfer head 45IV.
5 IV is lowered a little and the suction holding of the product A ₁ is released. In this way, the products A ₁ are sequentially stocked in such a manner that they are externally fitted to the holding sleeve 82 in the product stocker 80. Incidentally, this product stocker 80 is provided with two sets of two holding sleeves 82, and the product A ₁
The rotary table 81 after the stock is full.
Rotate 80 ° so that stock of the next product A ₁ is continued against the empty holding sleeve 82. Then, during this period, the product A ₁ is taken out from the holding sleeve 82 that is fully filled as appropriate.

[0042]

Other Embodiments The present invention has the constitution as described above, and in particular, the paper-making head in the paper-making method in the paper-making main body apparatus 20 is used, and this paper is constantly stirred in the raw material liquid A ₀ . The present invention is characterized in that it is capable of immersing and performing uniform papermaking, but embodiments other than those described above can be constructed within the scope of following this technical idea. For example, in the embodiment described above, the stirring propeller 23
Was provided at the bottom of the papermaking tank 21, but the same stirring effect can be obtained by providing it on the wall surface of the papermaking tank 21 as shown in FIG.

In the above-mentioned embodiment, the raw material liquid A ₀
Although the stirring propeller 23 was used as a means for stirring, the same stirring was performed even if a large number of air outlets were provided on the bottom of the papermaking tank 21 and bubbles were generated from these to cause convection in the raw material liquid A ₀ by the bubbles. The effect is obtained.

Further, in the above-described embodiment, the transfer area E ₃ and the drying press area E ₄ are laid out in parallel among the series of steps, but as shown in FIG. It is also possible to adopt a configuration in which E ₃ and the dry press area E ₄ are laid out in series.

[0045]

According to the invention described in claim 1, the raw material liquid A
_In No. _0, the paper is extracted by forced suction in the papermaking tank 21 with forced convection, so that the papermaking can be performed in a state in which various materials contained in the raw material liquid A ₀ are evenly dispersed.

According to the second aspect of the present invention, since the material escape hole 34 is provided in the ring of the carrier net 32, the material liquid A ₀ reaches the carrier net 32 from both inside and outside of the carrier net 32. As a result, it is possible to obtain a product in which the outer peripheral portion and the inner peripheral portion in the radial direction do not have uneven thickness. Further, since the stirring propeller 23 is provided near the carrier net 32, the raw material liquid A ₀ is forcibly convected, and various materials contained in the raw material liquid A ₀ are evenly dispersed. Therefore, it is possible to obtain a product having no uneven thickness.

According to the third aspect of the invention, since the stirring propeller 23 is provided below the annular carrier net 32, the various materials contained in the raw material liquid A ₀ can be effectively dispersed. Therefore, it is possible to obtain a product having no uneven thickness. Upon this invention performs the papermaking as described above but performed with stirring raw material liquid A ₀ by the stirring propeller 23, the various materials in particular gravity-sized material raw material liquid A ₀ causes extremely effectively uniformly dispersed It is possible to obtain a highly accurate product. In addition, the product specifications can be made different depending on how the volume of the constant quantity discharge pump 19 is set,
Moreover, since the volume of the raw material liquid A ₀ to be filled is definitely determined,
You can always make stable products, and you can freely set product specifications.

[Brief description of drawings]

FIG. 1 is a front view showing a papermaking apparatus of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a left side view of the above.

FIG. 4 is a schematic diagram showing the flow of the above product.

FIG. 5 is an enlarged plan view showing a papermaking main body device.

FIG. 6 is a vertical sectional side view showing the structure of the upper and lower parts.

FIG. 7 is a vertical sectional front view showing the papermaking tank and its surroundings in an enlarged manner and a part of the same.

FIG. 8 is a side view showing the transfer device.

FIG. 9 is a perspective view showing a completed product and a friction plate.

FIG. 10 is a vertical sectional front view showing another embodiment in which the installation direction of the stirring propeller is different.

FIG. 11 is a right side view showing an example in which each area of papermaking, transfer and drying press is laid out in series.

FIG. 12 is a vertical cross-sectional front view showing the structure of a conventional papermaking apparatus and its problems.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Papermaking apparatus 2 Frame 10 Raw material supply apparatus 11 Main raw material tank 12 Auxiliary raw material tank 13 Raw material transfer pipe 15 Stirring device 16 Drive motor 17 Main shaft 18 Stirring propeller 19 Constant discharge pump 20 Papermaking main body device 21 Papermaking tank 21 'Papermaking cup 23 Stirring propeller 24 Drive Motor 30 Papermaking Head 31 Dish Plate 31a Liquid Draining Hole 32 Carrier Net 32 'Carrier Net 33 Carrier Net Holding Ring 33a Inner Carrier Net Holding Ring 33b Outer Carrier Net Holding Ring 34 Raw Material Evacuation Hole 35 Liquid Draining Chamber 36 Lifting Shifter 37 Lifting Rod 37a Drain hole 38 Drain pipe 39 Drain pipe 40 Transfer device 41 Guide rail 42 Sliding subframe 43 Shifter 45 Transfer head 45I First transfer head 45II Second transfer head 45III Third transfer head Dod 45IV Fourth transfer head 46 Lifting shifter 47 Lifting rod 48 Holding plate 48a Operating hole 50 Drying press device 50A Drying device 50B Primary pressing device 50C Secondary pressing device 51 Movable cradle 52 Guide rail 54 Mounting plate 61 Movable cradle 62 guide rail 64 mounting board 70 press head 80 product stocker 81 rotary table 82 holding sleeve 90 control panel A ₀ raw material liquid A ₁ product a ₀ liquid component a ₁ product component E ₁ raw material area E ₂ papermaking area E ₃ transfer area E ₄ Drying press area E ₅ Stock area

Claims (3)

[Claims] 1. A certain amount of a raw material containing at least pulp raw material and friction material components in a dispersed state is supplied to a papermaking tank, a carrier net is provided inside the papermaking tank, and a liquid component in the raw material liquid is supplied from the carrier net. In the method of discharging and making a paper product having a predetermined shape, the raw material liquid is made to be made by forced suction in a state where forced convection is made inside the paper making tank, and a method of making an annular shaped paper product. 2. A raw material supply device, a constant-quantity discharge pump, a papermaking main body device, and a drying press device, wherein the papermaking main body device has an annular carrier net inside the papermaking tank, and further has a carrier net. A machine for manufacturing an annular papermaking product, characterized in that a material escape hole is provided in the annular ring, and a stirring propeller is provided near the carrier net. 3. The papermaking apparatus for an annular papermaking product according to claim 2, wherein the stirring propeller is provided below an annular carrier net.