JPH0849200A - Screen mold for fiber-molding, production of screening mold and screen-molded product - Google Patents
Screen mold for fiber-molding, production of screening mold and screen-molded productInfo
- Publication number
- JPH0849200A JPH0849200A JP15500694A JP15500694A JPH0849200A JP H0849200 A JPH0849200 A JP H0849200A JP 15500694 A JP15500694 A JP 15500694A JP 15500694 A JP15500694 A JP 15500694A JP H0849200 A JPH0849200 A JP H0849200A
- Authority
- JP
- Japan
- Prior art keywords
- rigid body
- papermaking mold
- fiber
- papermaking
- surface side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、工業製品、卵や果物等
の包装・緩衝材料として好適に用いられる、古紙パルプ
等を原料とする繊維成形物の抄造型及びその製造方法並
びにこの抄造型を用いて得られる繊維成形物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a papermaking mold for a fiber molding made of waste paper pulp or the like, which is preferably used as a packaging / buffering material for industrial products, eggs, fruits, etc., a method for producing the same, and this papermaking mold. The present invention relates to a fiber molded product obtained by using.
【０００２】[0002]
【従来の技術】従来、我国においては、工業製品等の包
装・緩衝材料として、主にプラスチック系のシート成形
品や発泡スチロールが使用されているが、これらは自然
界で分解されないのでゴミとして残存することや、焼却
すると有毒ガスを発生したり、高い燃焼熱により焼却炉
の炉壁を傷める等の環境上の問題があるため、何回も再
生・再利用が可能でしかも自然界で分解される古紙パル
プ等を原料とする繊維成形物への変換が試みられてい
る。2. Description of the Related Art Conventionally, in Japan, plastic sheet molded products and styrofoam have been mainly used as packaging / cushioning materials for industrial products, etc., but these do not decompose in the natural world and therefore remain as garbage. In addition, waste paper pulp that can be recycled and reused many times and is decomposed in nature because it has environmental problems such as generating toxic gas when incinerated and damaging the furnace wall of the incinerator due to high combustion heat Attempts have been made to convert the above materials into fiber moldings.
【０００３】このような繊維成形物を成形（抄造）する
ための抄造型としては、図１５に示すように、所望形状
を有する金属製剛性体１に多数の貫通孔２を穿設すると
ともに、この剛性体１の成形面３に沿って金網４を敷設
し、この金網４を貫通孔２を介して金属線５により剛性
体１に結着させたものが使用されている。また、抄造型
の形状が複雑な場合には、剛性体１を複数に分割し、そ
の分割体の表面に金網を敷設して得られるブロック体
（図示せず）を、ボルト等を用いて所望形状に組み合わ
せて、意図する形状の抄造型を得ることが行われてい
る。As a papermaking mold for molding (papermaking) such a fiber molding, as shown in FIG. 15, a large number of through holes 2 are formed in a rigid metal body 1 having a desired shape. A wire mesh 4 is laid along the molding surface 3 of the rigid body 1, and the wire mesh 4 is bonded to the rigid body 1 by a metal wire 5 through the through hole 2. When the shape of the papermaking mold is complicated, the rigid body 1 is divided into a plurality of pieces, and a block body (not shown) obtained by laying a wire mesh on the surface of the divided body is desired by using bolts or the like. In combination with a shape, a papermaking mold having an intended shape is obtained.
【０００４】そして、繊維成形物は、パルプ等を分散さ
せたスラリーに上記のような抄造型を浸漬し、抄造型内
を（成形面３の裏側（反成形面側）から）減圧すること
によりスラリーを金網４の表面に吸着させて抄造を行
い、次いで、抄造型をスラリーから浮上させ、抄造した
繊維成形物の水分を上記同様に減圧吸引することにより
ある程度除去し、しかる後、繊維成形物を離型すること
により得られていた。The fiber molding is obtained by immersing the papermaking mold as described above in a slurry in which pulp or the like is dispersed, and depressurizing the inside of the papermaking mold (from the back side of the molding surface 3 (opposite molding surface side)). Papermaking is carried out by adsorbing the slurry on the surface of the wire net 4, then the papermaking mold is floated from the slurry, and the water content of the papermaking fiber molded product is removed to some extent by vacuum suction in the same manner as described above. Was obtained by releasing.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の抄造型においては、繊維成形物を抄造する
際、パルプ等の繊維を金網４の表面に必要量吸着させる
ために、剛性体１に極めて多数の貫通孔２を穿設する必
要があり、これら多数の貫通孔２を穿設するために極め
て多くの時間と労力を費やすという課題があった。However, in such a conventional papermaking mold, when the fiber molded product is made into paper, the rigid body 1 is made to adsorb a required amount of fibers such as pulp on the surface of the wire netting 4. It is necessary to form an extremely large number of through holes 2, and there has been a problem that an extremely large amount of time and labor is required to form these large numbers of through holes 2.
【０００６】一方、貫通孔の個数を多少でも低減するた
めに貫通孔２の穿設間隔を大きくすると、金網４の表面
に吸着する繊維の厚さが薄くなって所望の厚さを有する
繊維成形物が得られなかったり、貫通孔２から離間する
金網部分には繊維が全く吸着せず、得られる繊維成形物
に穴が開いてしまうという課題があった。また、このよ
うに貫通孔の数を低減すれば、貫通孔一個当たりに流れ
る水等のスラリー分散媒の量や速度が大きくなるので、
貫通孔の上方に位置する金網表面に吸着した繊維が金網
４や貫通孔にくい込み、成形物を離型する際に、くい込
んだ繊維を起点として成形物が破れたり、また、離型は
できても貫通孔に対応する形跡が成形面表面に顕著に残
存したりするという課題もあった。On the other hand, if the spacing between the through holes 2 is increased in order to reduce the number of the through holes to some extent, the thickness of the fibers adsorbed on the surface of the wire net 4 becomes thin, and the fiber molding having a desired thickness is formed. There was a problem that a product could not be obtained or fibers were not adsorbed at the wire mesh portion separated from the through hole 2 and a hole was formed in the obtained fiber molded product. Further, if the number of through holes is reduced in this way, the amount and speed of the slurry dispersion medium such as water flowing per through hole increases,
The fibers adsorbed on the surface of the wire mesh located above the through holes are difficult to insert into the wire mesh 4 and the through holes, and when the molded product is released from the mold, the molded product is torn from the starting point, and the release is not possible. However, there is also a problem in that traces corresponding to the through-holes remarkably remain on the molding surface.
【０００７】更に、金網４を剛性体１の成形面側表面に
敷設する作業は、上述のように金網４の所定部分を１箇
所ずつ金属線５で結着するという極めて時間のかかる手
作業である。本発明は、このような従来技術の有する課
題に鑑みてなされたものであり、その主目的とするとこ
ろは、製作労力及び製作時間の低減した繊維成形物の抄
造型及びその製造方法、並びに好適な外観を有する繊維
成形物を提供することにある。また、本発明の他の目的
は、剛性体に穿設する貫通孔の数を著しく低減し、貫通
孔を穿設する工数を低減することにある。更に、本発明
の他の目的は、剛性体と網状体とを簡易且つ短時間で接
合することにある。更にまた、本発明の他の目的は、表
面に貫通孔に対応した形跡や破れ等が存在せず、滑らか
な表面を有する繊維成形物を提供することにある。Further, the work of laying the wire mesh 4 on the surface of the rigid body 1 on the molding surface side is a very time-consuming manual work of binding the predetermined portions of the wire mesh 4 one by one with the metal wires 5 as described above. is there. The present invention has been made in view of the above problems of the prior art, and its main object is to make a papermaking mold for a fiber molded product with reduced manufacturing labor and manufacturing time, and a method for manufacturing the same. The object is to provide a fiber molded product having a unique appearance. Another object of the present invention is to significantly reduce the number of through holes formed in the rigid body and reduce the number of steps for forming the through holes. Further, another object of the present invention is to join the rigid body and the mesh body easily and in a short time. Still another object of the present invention is to provide a fiber molded product having a smooth surface without any traces or breaks corresponding to the through holes on the surface.
【０００８】[0008]
【課題を解決するための手段】本発明者は、上記目的を
達成すべく鋭意研究した結果、特定の溝、凹凸部、スリ
ット等を設けたり、剛性体と網状体を接合することによ
り、上記目的が達成できることを見出し、本発明を完成
するに至った。従って、本発明の繊維成形物の抄造型
は、所望形状を有し且つ貫通孔を穿設された剛性体と、
この剛性体の成形面側表面の一部又は全体に敷設された
網状体と、を備えた繊維成形物の抄造型において、上記
成形面側表面に分散媒案内路を有することを特徴とす
る。また、本発明の他の抄造型は、所望形状を有し且つ
貫通孔を穿設された剛性体と、この剛性体の成形面側表
面の一部又は全体に敷設された網状体と、を備えた繊維
成形物の抄造型において、上記成形面側表面に凹凸を有
し、上記貫通孔が該凹部及び／又は該凸部と連通してい
ることを特徴とする。更に、本発明の他の抄造型は、所
望形状を有する剛性体と、この剛性体の成形面側表面の
一部又は全体に敷設された網状体と、を備えた繊維成形
物の抄造型において、上記剛性体がスリットを備えるこ
とを特徴とする。更にまた、本発明の他の抄造型は、所
望形状を有し且つ貫通孔を穿設された剛性体と、この剛
性体の成形面側表面の一部又は全体に敷設された網状体
と、を備えた繊維成形物の抄造型において、上記剛性体
と網状体とが接合されて成ることを特徴とする。Means for Solving the Problems As a result of earnest research to achieve the above object, the present inventor has found that by providing a specific groove, uneven portion, slit, or the like, or by joining a rigid body and a mesh body, The inventors have found that the object can be achieved, and have completed the present invention. Therefore, the papermaking mold of the fiber molded product of the present invention has a rigid body having a desired shape and having through holes,
In a papermaking mold for a fiber molded article, which comprises a net-like member laid on a part or the whole of the surface of the rigid body on the side of the molding surface, the surface of the molding surface has a dispersion medium guide path. Further, another papermaking die of the present invention comprises a rigid body having a desired shape and having through holes formed therein, and a mesh body laid on a part or the whole of the molding surface side surface of the rigid body. In a papermaking mold of the fiber molding provided, the surface of the molding surface has irregularities, and the through hole communicates with the concave portion and / or the convex portion. Further, another papermaking mold of the present invention is a papermaking mold for a fiber molded product, which comprises a rigid body having a desired shape and a mesh body laid on a part or the whole of the molding surface side surface of the rigid body. The rigid body is provided with a slit. Furthermore, another papermaking mold of the present invention is a rigid body having a desired shape and having a through hole formed therein, and a net-like body laid on a part or the whole of the molding surface side surface of the rigid body, In a papermaking mold of a fiber molded article including, the rigid body and the mesh body are joined together.
【０００９】また、本発明の繊維成形物の抄造型の製造
方法は、繊維成形物の抄造型を製造するに当たり、所望
形状を有する剛性体を作製し、この剛性体に網状体を接
合することにより該剛性体の成形面側表面の一部又は全
体に該網状体を敷設し、この敷設を行う前又は後に、該
剛性体に貫通孔を穿設することを特徴とする。更に、本
発明の繊維成形物は、上記のような抄造型を使用して得
られることを特徴とする。Further, in the method for producing a paper mold for a fiber molded product of the present invention, a rigid body having a desired shape is prepared and a reticulate body is bonded to the rigid body when the paper mold for a fiber molded product is produced. Thus, the net-like body is laid on a part or the whole of the surface on the molding surface side of the rigid body, and a through hole is formed in the rigid body before or after the laying. Furthermore, the fiber molded product of the present invention is characterized by being obtained by using the above-described papermaking mold.
【００１０】[0010]
【作用】本発明の抄造型においては、剛性体の成形面側
表面の一部又は全体に亘って溝等で形成される分散媒案
内路を設けた。従って、繊維成形物を抄造する際、パル
プ等の繊維を分散させている分散媒（代表的には、水）
は、上記分散媒案内路を介して貫通孔から速やかに排出
される。即ち、分散媒案内路は、分散媒を貫通孔に導入
する機能を果たすことになる。更に、一部又は全部の分
散媒案内路を貫通孔と直接連通することにより、分散媒
を貫通孔に迅速に導入することができる。このように、
この抄造型は、従来の貫通孔のみの抄造型に比し分散媒
排出能力（排水能力）に優れており、このため、穿設す
る貫通孔の数を著しく低減することができる。また、分
散媒排出能力に優れることから、貫通孔の数を少なくし
ても、分散媒案内路の貫通孔が穿設された部分の上方に
位置する網状体部分のみならず、それ以外の部分の上方
に位置する網状体部分においても、スラリーに分散して
いる繊維を十分に吸着でき、穴等の欠陥が存在せず適切
な厚さを有する繊維成形物を得ることができる。更に、
分散媒の吸引が広い範囲に亘って均等化されるので、特
定部位の貫通孔に繊維がくい込むことも抑制でき、繊維
成形物の表面が破れたり、貫通孔に起因する傷が発生す
るのを防止することができる。In the papermaking mold of the present invention, the dispersion medium guide path formed by grooves is provided over a part or the whole of the surface of the rigid body on the molding surface side. Therefore, a dispersion medium (typically water) in which fibers such as pulp are dispersed when a fiber molded product is formed into paper.
Is promptly discharged from the through hole via the dispersion medium guide path. That is, the dispersion medium guide path has a function of introducing the dispersion medium into the through hole. Furthermore, the dispersion medium can be rapidly introduced into the through hole by directly communicating a part or all of the dispersion medium guide path with the through hole. in this way,
This papermaking mold is excellent in the dispersion medium discharge capacity (drainage capacity) as compared with the conventional papermaking mold having only through holes, and therefore the number of through holes to be drilled can be significantly reduced. Further, since the dispersion medium discharge capacity is excellent, even if the number of through holes is reduced, not only the mesh portion located above the portion where the through holes of the dispersion medium guide path are formed, but also other portions. The fibers dispersed in the slurry can be sufficiently adsorbed also in the net-like portion located above, and a fiber molded product having an appropriate thickness without defects such as holes can be obtained. Furthermore,
Since the suction of the dispersion medium is equalized over a wide range, it is possible to suppress the fibers from biting into the through holes of a specific portion, the surface of the fiber molded product is broken, and scratches due to the through holes occur. Can be prevented.
【００１１】また、本発明の他の抄造型においては、剛
性体の成形面側表面の一部又は全体に適当な凹凸を設
け、一部又は全部の凹部及び／又は凸部、好ましくは凹
部と貫通孔を連通することにした。従って、抄造の際、
分散媒は、上記凹部とこれに連通された貫通孔を介して
速やかに排出される。即ち、上記凹部は、分散媒を貫通
孔に迅速に導入する機能を果たすことになる。よって、
この抄造型は、上記従来の抄造型に比し分散媒排出能力
に優れており、このため、穿設する貫通孔の数を著しく
低減することができる。Further, in another papermaking mold of the present invention, an appropriate unevenness is provided on a part or the whole of the surface of the rigid body on the molding surface side, and a part or all of the recesses and / or projections, preferably recesses. I decided to connect the through holes. Therefore, during papermaking,
The dispersion medium is promptly discharged through the recess and the through hole communicating with the recess. That is, the concave portion has a function of promptly introducing the dispersion medium into the through hole. Therefore,
This papermaking mold is superior to the above-mentioned conventional papermaking mold in discharging the dispersion medium. Therefore, the number of through holes to be drilled can be significantly reduced.
【００１２】更に、本発明の他の抄造型においては、剛
性体の成形面側表面から反成形面側表面（裏側表面）に
貫通するスリットを、剛性体の一部又は全体に亘って設
けた。このスリットは、上述のような分散媒案内路と貫
通孔の機能を併せもつものであり、この抄造型は極めて
優れた分散媒排出能力を有する。Further, in another papermaking mold of the present invention, a slit penetrating from the molding surface side surface of the rigid body to the non-molding surface side surface (back side surface) is provided over a part or the whole of the rigid body. . The slit has the functions of the dispersion medium guide path and the through hole as described above, and this papermaking mold has an extremely excellent dispersion medium discharge capability.
【００１３】また、本発明の抄造型の製造方法において
は、剛性体の成形面側表面に網状体を敷設するに際し、
剛性体と網状体とを金属線等で結着するのではなく、両
者を直接溶接すること等により接合することにした。従
って、網状体の敷設が容易になり、抄造型の製作労力や
製作時間を低減することができる。また、上述の如く、
剛性体に分散媒案内路、凹凸及び／又はスリットを設け
れば、貫通孔の個数を減少又は無くすことができるた
め、抄造型の製作労力等を更に低減することが可能にな
る。Further, in the method for manufacturing a papermaking mold of the present invention, when the net-like body is laid on the surface of the rigid body on the molding surface side,
Instead of connecting the rigid body and the mesh body with a metal wire or the like, the rigid body and the mesh body are joined directly by welding or the like. Therefore, the net-like body can be easily laid, and the labor and time required for manufacturing the papermaking mold can be reduced. Also, as mentioned above,
If the rigid body is provided with the dispersion medium guide path, the irregularities and / or the slits, the number of through holes can be reduced or eliminated, so that the manufacturing labor of the papermaking die can be further reduced.
【００１４】[0014]
【実施例】以下、本発明を、図面を参照して実施例によ
り更に詳細に説明する。 （実施例１）図１に、本発明の抄造型の一実施例を示
す。同図において、抄造型６は、繊維成形物の形状に対
応した形状を有する金属製の剛性体１０と、剛性体１０
の成形面側表面１１に敷設された金網２０とを備えてい
る。なお、通常、金網２０は成形面側表面１１の全体に
亘って敷設されているが、図１においては説明のために
部分的にしか図示していない。また、本実施例におい
て、金網２０は、剛性体１０に溶接され成形面側表面１
１に敷設されているが、これに限定されるものではな
く、従来のように金属線を用いて剛性体１０に結着して
もよい（図示せず）。剛性体１０の成形面側表面１１に
は分散媒案内路の一例である溝１５が設けられており、
この溝１５の底部１５ａには、剛性体１０の反成形面側
表面１２まで貫通した貫通孔１４が穿設されており、溝
１５と貫通孔１４との連通がなされている。なお、貫通
孔１４の開口部は必ずしも底部１５ａに存在する必要は
なく、図２に示す貫通孔１４’ように側壁部１５ｂに開
口部が存在していてもよいが、分散媒排出能力を考慮す
れば底部１５ａに存在するのが好ましい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the accompanying drawings. (Embodiment 1) FIG. 1 shows an embodiment of the papermaking mold of the present invention. In the figure, the papermaking mold 6 includes a rigid body 10 made of metal and a rigid body 10 having a shape corresponding to the shape of the fiber molding.
And a wire net 20 laid on the molding surface side surface 11. Although the wire net 20 is normally laid over the entire surface 11 on the molding surface side, it is shown only partially in FIG. 1 for the sake of explanation. In addition, in the present embodiment, the wire net 20 is welded to the rigid body 10 and is formed on the molding surface side surface 1.
However, the present invention is not limited to this and may be bonded to the rigid body 10 by using a metal wire as in the conventional case (not shown). A groove 15 which is an example of a dispersion medium guide path is provided on the surface 11 on the molding surface side of the rigid body 10,
The bottom portion 15a of the groove 15 is provided with a through hole 14 penetrating to the surface 12 on the side opposite to the molding surface of the rigid body 10, and the groove 15 and the through hole 14 are communicated with each other. Note that the opening of the through hole 14 does not necessarily have to be present in the bottom portion 15a, and the opening may be present in the side wall portion 15b as in the through hole 14 'shown in FIG. If so, it is preferable that they are present at the bottom portion 15a.
【００１５】次に、溝１５の断面形状について説明す
る。本実施例において、溝１５の断面形状は矩形である
が、これに限定されるものではなく、分散媒を貫通孔１
４に速やかに導入できる形状であれば十分である。従っ
て、溝１５の断面形状の例としては、図３(a)〜(j)に示
すような形状を挙げることができる。これら例のうち、
図３(i)に示すものは分散媒排出能力を低下させず、し
かも金網２０が溝内に侵入しにくいため好ましく、図３
(j)に示すものは縁部をＲ加工しているため金網２０が
縁部で損傷しにくく、抄造型の耐久性を向上できるため
好ましい。また、溝１５は、剛性体１０の材質（金属、
樹脂、木材等）に応じて鋳造、切削加工、塑性加工、樹
脂注型等することにより一体的に形成できるが、他の部
材を用いて剛性体１０と別体で構成し、組み合わせるこ
とにより形成してもよい。Next, the sectional shape of the groove 15 will be described. In this embodiment, the groove 15 has a rectangular cross-sectional shape, but the shape is not limited to this.
A shape that can be rapidly introduced into No. 4 is sufficient. Therefore, examples of the cross-sectional shape of the groove 15 include the shapes shown in FIGS. 3 (a) to 3 (j). Of these examples,
The one shown in FIG. 3 (i) is preferable because it does not lower the dispersion medium discharge capacity and the wire net 20 does not easily enter the groove.
Since the edge shown in (j) is R-processed, the wire net 20 is less likely to be damaged at the edge and the durability of the papermaking mold can be improved, which is preferable. The groove 15 is made of a material (metal, metal, etc.) of the rigid body 10.
It can be integrally formed by casting, cutting, plastic working, resin casting, etc. depending on the resin, wood, etc.), but it is formed by using another member and forming it separately from the rigid body 10 and combining them. You may.
【００１６】次に、溝１５の配置態様について説明す
る。本実施例において、溝１５の平面形状は、剛性体１
０の成形面側表面１１において相互に平行をなす直線状
であるが、これに限定されるものではなく、分散媒を貫
通孔１４に速やかに導入できる形状であれば十分であ
る。従って、溝１５の配置態様（平面形状）としては、
図４(a)〜(i)に示すものを例示できる。いずれの形状を
採用しても良好な抄造性能を得ることができるが、剛性
体１０を鋳造や樹脂注型等で作製する場合には、アンダ
ーカット部分を有する溝形状では作製が困難になること
もある。従って、このような場合には、図４(a),(b),
(c)又は(h)に示す形状を選択すればよい。Next, the arrangement of the grooves 15 will be described. In the present embodiment, the plan shape of the groove 15 is the rigid body 1.
However, the shape is not limited to this, and any shape that allows the dispersion medium to be rapidly introduced into the through hole 14 is sufficient. Therefore, as the arrangement mode (planar shape) of the groove 15,
The examples shown in FIGS. 4 (a) to 4 (i) can be exemplified. Good papermaking performance can be obtained regardless of which shape is used, but when the rigid body 10 is manufactured by casting, resin casting, or the like, it is difficult to manufacture with a groove shape having an undercut portion. There is also. Therefore, in such a case, as shown in FIGS.
The shape shown in (c) or (h) may be selected.
【００１７】次に、溝１５に対する貫通孔１４の配置態
様について説明する。本実施例において、貫通孔１４は
各溝１５の底部１５ａに穿設されているが、これに限定
されず、分散媒を成形面側表面１１から反成形面側１２
に排出できるような配置であれば十分であり、図５(a)
〜(d)示すような配置態様を例示できる。図５(a)〜(d)
に示す配置であれば、いずれも良好な抄造性能を得るこ
とができるが、分散媒を貫通孔１４に速やかに導入する
には、貫通孔１４と溝１５とは連通しているのが好まし
く、従って、図５(a),(b)又は(d)に示す配置が好まし
い。特に、図５(d)に示す配置では、１個の貫通孔１４
が２本の溝１５に連通しているので、分散媒排出能力が
特に良好であり、分散媒排出力を低減させることなく、
貫通孔の個数を減らすには一層好ましい配置態様といえ
る。なお、図５(a)〜(d)に示す配置態様のうちの２種以
上を組み合わせることも可能である。Next, the arrangement of the through holes 14 with respect to the groove 15 will be described. In this embodiment, the through hole 14 is formed in the bottom portion 15a of each groove 15. However, the present invention is not limited to this, and the dispersion medium is transferred from the molding surface side surface 11 to the non-molding surface side 12.
It is sufficient if the arrangement is such that it can be discharged to
The arrangement modes as shown in (d) can be exemplified. 5 (a)-(d)
If the arrangement shown in (1) is used, good papermaking performance can be obtained, but in order to quickly introduce the dispersion medium into the through hole 14, it is preferable that the through hole 14 and the groove 15 are in communication with each other. Therefore, the arrangement shown in FIG. 5 (a), (b) or (d) is preferable. Particularly, in the arrangement shown in FIG. 5D, one through hole 14
Is connected to the two grooves 15, the dispersion medium discharging ability is particularly good, and the dispersion medium discharging force is not reduced.
It can be said that the arrangement is more preferable in order to reduce the number of through holes. It is also possible to combine two or more of the arrangement modes shown in FIGS. 5 (a) to 5 (d).
【００１８】次に、溝１５の寸法について説明する。溝
１５の寸法は、特に限定されるものではなく、抄造型６
の寸法及び形状、溝１５の形状及び配置態様、貫通孔１
４の大きさ、配置態様及び個数、意図する抄造性能等に
応じて適宜変更することができる。代表的に、反成形面
側表面１２側を５００〜７６０ｍｍＨｇで３秒間減圧す
ることにより、厚さ０．５〜５ｍｍ程度の繊維成形物を
得る場合には、断面形状が矩形をなす溝１５の幅ｗは
０．１〜２０ｍｍとするのが好ましく、０．５〜１０ｍ
ｍとするのが更に好ましい（図１参照。）。０．１ｍｍ
未満の場合には、溝１５を分散媒が流れ難くなるので、
貫通孔１４の数を少なくすると金網２０上に所望厚さの
繊維成形物を抄造でき難くなる。一方、この幅ｗの上限
は金網２０を構成する金属線の剛性との関係により適宜
変更できるため正確に規定することはできないが、この
金属線の線径が０．１ｍｍ程度の場合、幅ｗが２０ｍｍ
を超えると、金網２０が外力等により変形して溝１５内
に侵入し易くなり、抄造する繊維成形物の表面に突起等
が転写されてしまうことがあり好ましくない。Next, the dimensions of the groove 15 will be described. The size of the groove 15 is not particularly limited, and the papermaking mold 6
Size and shape, shape and arrangement of groove 15, through hole 1
4 can be appropriately changed according to the size, arrangement mode and number, intended papermaking performance, and the like. Typically, when a fiber molded product having a thickness of about 0.5 to 5 mm is obtained by depressurizing the non-molding surface side surface 12 side at 500 to 760 mmHg for 3 seconds, the groove 15 having a rectangular cross section is formed. The width w is preferably 0.1 to 20 mm, and 0.5 to 10 m
More preferably m (see FIG. 1). 0.1 mm
If less than, the dispersion medium will not flow easily through the groove 15,
If the number of through holes 14 is reduced, it becomes difficult to fabricate a fiber molded product having a desired thickness on the wire net 20. On the other hand, the upper limit of the width w cannot be accurately specified because it can be changed appropriately depending on the relationship with the rigidity of the metal wire forming the wire net 20, but when the diameter of this metal wire is about 0.1 mm, the width w Is 20 mm
If it exceeds, the wire mesh 20 is deformed by an external force or the like and easily enters the groove 15, and projections or the like may be transferred to the surface of the fiber molded article to be formed, which is not preferable.
【００１９】一方、矩形溝１５の深さｈは、上述のよう
に厚さ０．５〜５ｍｍの繊維成形物を得ようとする場
合、代表的に０．１ｍｍ以上とするのが好ましく、０．
５ｍｍ以上とするのが更に好ましい（図１参照。）。
０．１ｍｍ未満の場合には、溝１５を分散媒が流れ難く
なるので、貫通孔１４の数を少なくすると、金網２０上
に所望厚さの繊維成形物を抄造でき難くなり好ましくな
い。なお、深さｈが大きくなる方向については、大きす
ぎることにより抄造性能に直接悪影響を及ぼすことはな
いが、深さｈの寸法を大きく採ることにより剛性体１０
の厚さを大きく採らなければならず、剛性体１０ひいて
は抄造型６全体の重量が大きくなり、材料コストが高く
なることに注意を払う必要がある。On the other hand, the depth h of the rectangular groove 15 is preferably 0.1 mm or more, typically 0, when a fiber molded product having a thickness of 0.5 to 5 mm is to be obtained as described above. ．
It is more preferable that the distance is 5 mm or more (see FIG. 1).
If the thickness is less than 0.1 mm, the dispersion medium will not easily flow through the groove 15, and therefore, if the number of the through holes 14 is reduced, it is difficult to fabricate a fiber molded product having a desired thickness on the wire net 20, which is not preferable. Regarding the direction in which the depth h increases, too large a depth will not directly adversely affect the papermaking performance, but the rigidity of the rigid body 10 can be increased by increasing the dimension of the depth h.
It is necessary to pay attention to the fact that the thickness of the rigid body 10 must be increased, the weight of the rigid body 10 and the entire papermaking mold 6 is increased, and the material cost is increased.
【００２０】また、溝１５の断面形状が図３(d)〜(j)に
示すように矩形以外の場合でも、その幅ｗは上述の関係
を満足するのが好ましいが、図６に示すように、断面積
Ｓとしても０．０１ｍｍ2以上とするのが好ましく、
０．２５ｍｍ2以上とするのが一層好ましい。ここで、
断面積Ｓは、図６に示すように、剛性体１０を成形面側
表面１１に対して垂直に切断して得られる任意の断面に
おいて、溝１５上を横断する金網２０などで構成される
線分Ｐと溝１５を規定する線Ｑとで囲まれる部分の面積
をいうものとする。断面積Ｓが０．０１ｍｍ2未満の場
合には、溝１５を分散媒が流れ難くなるので、貫通孔１
４の数を少なくすると、所望厚さの繊維成形物を抄造で
きなくなることがあり好ましくない。一方、断面積Ｓの
上限値は、断面積Ｓが大きくなりすぎて抄造性能に問題
を生ずることはないので、特に限定されるものではな
い。Further, even if the cross-sectional shape of the groove 15 is not rectangular as shown in FIGS. 3 (d) to 3 (j), its width w preferably satisfies the above relationship, but as shown in FIG. In addition, the cross-sectional area S is preferably 0.01 mm 2 or more,
More preferably, it is 0.25 mm 2 or more. here,
As shown in FIG. 6, the cross-sectional area S is a line formed by a wire mesh 20 crossing over the groove 15 in an arbitrary cross section obtained by cutting the rigid body 10 perpendicularly to the molding surface 11. The area of a portion surrounded by the portion P and the line Q defining the groove 15 is referred to. When the cross-sectional area S is less than 0.01 mm 2 , it is difficult for the dispersion medium to flow in the groove 15, so the through hole 1
If the number of 4 is reduced, it may not be possible to fabricate a fiber molded product having a desired thickness, which is not preferable. On the other hand, the upper limit of the cross-sectional area S is not particularly limited because the cross-sectional area S does not become too large and causes a problem in papermaking performance.
【００２１】溝１５の配設間隔としては、特に限定され
るものではなく、抄造型６の寸法及び形状、溝１５の寸
法及び形状、貫通孔１４の配置、大きさ及び個数、意図
する抄造性能等に応じて適宜変更することができる。代
表的に、上述の減圧条件により厚さ０．５〜５ｍｍの繊
維成形物を得る場合には、図５(a)に示すように、溝１
５の中心線同士の間隔ｄは通常１００ｍｍ以下であり、
８０ｍｍ以下が好ましく、５０ｍｍ以下とするのが更に
好ましい。溝１５の配設間隔ｄが小さくなると、溝１５
同士により挟まれた領域１０ａの幅が小さくなるが、こ
れにより抄造性能が低下することはない。但し、領域１
０ａの幅が小さくなりすぎると、剛性体の材質によって
は該剛性体の機械的強度が小さくなることがあり、破損
し易くなるので注意を要する。一方、間隔ｄが１００ｍ
ｍを超えると、溝１５から離れて位置する成形面側表面
１１の部分では分散媒が流れ難くなる。従って、当該部
分における貫通孔１４の数を少なくすると、当該部分の
上方の金網２０部分には繊維成形物が十分に吸着され
ず、得られる繊維成形物の厚さが小さくなったり、繊維
成形物に穴が開いてしまうことがあり好ましくない。The arrangement interval of the grooves 15 is not particularly limited, and the size and shape of the papermaking mold 6, the size and shape of the grooves 15, the arrangement of the through holes 14, the size and number, the intended papermaking performance. It can be changed according to the circumstances. Typically, when a fiber molded product having a thickness of 0.5 to 5 mm is obtained under the above-mentioned reduced pressure condition, as shown in FIG.
The distance d between the center lines of 5 is usually 100 mm or less,
It is preferably 80 mm or less, and more preferably 50 mm or less. When the arrangement interval d of the grooves 15 becomes small, the grooves 15
Although the width of the region 10a sandwiched between them is reduced, the papermaking performance is not deteriorated by this. However, area 1
If the width of 0a is too small, the mechanical strength of the rigid body may be reduced depending on the material of the rigid body, and the rigid body is likely to be damaged, so be careful. On the other hand, the distance d is 100 m
When it exceeds m, it becomes difficult for the dispersion medium to flow in the portion of the molding surface side surface 11 located away from the groove 15. Therefore, if the number of the through holes 14 in the relevant portion is reduced, the fiber molded product is not sufficiently adsorbed in the portion of the wire net 20 above the relevant portion, and the thickness of the obtained fiber molded product becomes small, or the fiber molded product is reduced. It is not preferable because there may be holes in the.
【００２２】次に、貫通孔１４の寸法・形状等について
説明する。貫通孔１４の寸法は、特に限定されず、抄造
型６の寸法及び形状、溝１５の寸法、配置及び形状、貫
通孔１４の配置及び個数、意図する抄造性能等に応じて
適宜変更することが可能である。代表的に、上述の減圧
条件により厚さ０．５〜５ｍｍの繊維成形物を得ようと
する場合であって、矩形をなす溝１５の幅が３ｍｍの場
合、貫通孔１４の直径は０．２〜２０ｍｍであり、０．
５〜１５ｍｍとするのが好ましく、１〜１０ｍｍとする
のが更に好ましい。直径が０．２ｍｍより小さいと、貫
通孔１個当たりの分散媒排出能力が小さくなるため、適
切な厚さを有する繊維成形物を得るには、多数の貫通孔
を密に穿設しなければならず、穿設の工数が増加するの
で好ましくない。一方、この直径の上限は、金網２０を
構成する金属線の剛性との関係により適宜変更できるた
め正確に規定することはできないが、この線径が０．１
ｍｍ程度の場合、直径が２０ｍｍより大きくなると、金
網２０が外力等により変形して貫通孔１４の内部に侵入
し、得られる繊維成形物の表面に突起が転写されること
があるので好ましくない。なお、貫通孔１４の平面形状
（孔形状）は、特に限定されるものではなく、円形、矩
形、多角形、星形等を例示できるが、穿設を容易に行え
ることから円形が好ましい。Next, the size and shape of the through hole 14 will be described. The size of the through hole 14 is not particularly limited, and may be appropriately changed according to the size and shape of the papermaking mold 6, the size and arrangement of the groove 15, the arrangement and number of the through holes 14, the intended papermaking performance, and the like. It is possible. Typically, when a fiber molded product having a thickness of 0.5 to 5 mm is to be obtained under the above-described depressurization condition, and the width of the rectangular groove 15 is 3 mm, the diameter of the through hole 14 is 0. 2 to 20 mm, and 0.
The thickness is preferably 5 to 15 mm, more preferably 1 to 10 mm. If the diameter is smaller than 0.2 mm, the discharge capacity of the dispersion medium per through-hole becomes small. Therefore, in order to obtain a fiber molded product having an appropriate thickness, many through-holes must be densely formed. In addition, the number of drilling steps increases, which is not preferable. On the other hand, the upper limit of this diameter cannot be accurately specified because it can be changed appropriately depending on the relationship with the rigidity of the metal wire forming the wire net 20, but this wire diameter is 0.1.
In the case of about mm, if the diameter is larger than 20 mm, the wire mesh 20 may be deformed by an external force or the like to enter the inside of the through hole 14 and the protrusion may be transferred to the surface of the obtained fiber molded product, which is not preferable. The planar shape (hole shape) of the through hole 14 is not particularly limited, and may be circular, rectangular, polygonal, star-shaped, etc., but the circular shape is preferable because it can be easily drilled.
【００２３】また、貫通孔１４の穿設間隔については、
貫通孔１４の直径、溝１５の配置態様、溝の幅と深さ、
溝と貫通孔との配置関係等によって適宜変更できるもの
であり、特定することは困難である。但し、一般的に、
穿設間隔が小さくなっても抄造性能に特に問題は生じな
いものの、穿設する貫通孔の個数が増加して穿設工数が
多くなるので、穿設間隔をあまりに小さくし過ぎるのは
好ましくない。これに対し、穿設間隔を大きくしても、
上記他の条件、例えば溝と貫通孔との配置関係などを適
宜変更することにより、対処することが可能である。Further, regarding the interval of forming the through holes 14,
The diameter of the through hole 14, the arrangement mode of the groove 15, the width and depth of the groove,
It can be appropriately changed depending on the arrangement relationship between the groove and the through hole, and it is difficult to specify. However, in general,
Although the papermaking performance is not particularly problematic even if the perforation interval is small, the number of perforations to be perforated is increased and the number of man-hours perforation is increased. Therefore, it is not preferable to make the perforation interval too small. On the other hand, even if the drilling interval is increased,
This can be dealt with by appropriately changing the other conditions described above, for example, the positional relationship between the groove and the through hole.
【００２４】次に、本実施例の作用について説明する。
本実施例においては、剛性体１０の成形面側表面１１に
溝１５を設け、この溝１５を貫通孔１４と連通した。従
って、繊維成形物を抄造するに当たって、パルプ等の繊
維を分散させている分散媒は、成形面側表面１１から溝
１５を経由して貫通孔１４に迅速に導入され、この貫通
孔１４を介して反成形面側表面１２の方に排出される。
よって、本実施例の抄造型６は、分散媒排出能力に優れ
ており、穿設する貫通孔１４の個数を減少させても、貫
通孔のみが配設された従来の抄造型に勝る分散媒排出能
力を有する。この結果、抄造型６を作製するに当たって
は、貫通孔の穿設工数を低減できるため、作製労力及び
作製時間が少なくて済み、しかも、得られる繊維成形物
の表面には突起や破れが存在しない。Next, the operation of this embodiment will be described.
In this embodiment, a groove 15 is provided on the surface 11 of the rigid body 10 on the molding surface side, and the groove 15 is communicated with the through hole 14. Therefore, in making a fiber molded product, the dispersion medium in which fibers such as pulp are dispersed is promptly introduced from the molding surface side surface 11 into the through hole 14 through the groove 15, and through the through hole 14. And is discharged toward the surface 12 opposite to the molding surface.
Therefore, the papermaking mold 6 of the present embodiment is excellent in the dispersion medium discharging ability, and even if the number of the through holes 14 to be drilled is reduced, the dispersion medium is superior to the conventional papermaking mold in which only the through holes are provided. Has discharge capacity. As a result, when the papermaking mold 6 is manufactured, the number of man-hours for forming the through holes can be reduced, so that the manufacturing labor and the manufacturing time can be reduced, and the surface of the obtained fiber molded product has no protrusions or breaks. .
【００２５】更に、本実施例の変形例として、溝１５が
成形面側表面１１から反成形面側表面１２まで貫通した
（即ち、溝１５がスリット状をなす）抄造型を図７に示
す。この変形例においては、貫通孔は存在しないもの
の、貫通孔及び溝の機能をスリット１５’が果たし、し
かもスリット１５’は貫通孔が溝全体に亘って穿設され
ているのと同様の作用をなすため、分散媒排出能力は極
めて良好である。また、抄造型６の場合と異なり、溝１
５の深さｈを大きくして分散媒の貫通孔１４への導入作
用を向上させるに当たって、剛性体１０の厚さを考慮す
る必要がない。従って、所望の機械的強度さえ満足でき
れば、剛性体１０の厚さを著しく低減でき、材料コスト
を下げることができる。Further, as a modified example of this embodiment, FIG. 7 shows a papermaking mold in which the groove 15 penetrates from the molding surface side surface 11 to the non-molding surface side surface 12 (that is, the groove 15 has a slit shape). In this modification, although the through hole does not exist, the slit 15 ′ fulfills the functions of the through hole and the groove, and the slit 15 ′ has the same function as the through hole is formed over the entire groove. Therefore, the discharge capacity of the dispersion medium is extremely good. Further, unlike the case of the papermaking mold 6, the groove 1
When increasing the depth h of 5 to improve the action of introducing the dispersion medium into the through holes 14, it is not necessary to consider the thickness of the rigid body 10. Therefore, if only the desired mechanical strength is satisfied, the thickness of the rigid body 10 can be significantly reduced, and the material cost can be reduced.
【００２６】（実施例２）図８に、本発明の他の抄造型
の一実施例を示す。なお、以下、実施例１の場合と実質
的に同一の部材には同一符号を付し、その説明を省略す
る。図８において、抄造型７の成形面側表面１１には、
凹部１６と凸部１７とが適当に設けられている。貫通孔
１４は成形面側表面１１に適数穿設されており、一部の
凹部１６と連通している。即ち、本実施例においては、
貫通孔１４は凹部１６がなす曲面の任意の位置に穿設さ
れている。但し、１個の凹部１６に複数の貫通孔１４が
穿設されていてもよく、また、１個の貫通孔１４が複数
の凹部１６と連通していてもよい（図示せず）。上述の
ように、貫通孔１４は凹部１６と連通していることか
ら、分散媒は、凹部１６を介して貫通孔１４に迅速に導
入されるため、抄造型７は分散媒排出能力に優れる。よ
って、穿設する貫通孔の個数を低減できるとともに、得
られる繊維成形物の外観も良好である。(Embodiment 2) FIG. 8 shows another embodiment of the papermaking mold of the present invention. Note that, in the following, substantially the same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. In FIG. 8, on the molding surface side surface 11 of the papermaking mold 7,
The concave portion 16 and the convex portion 17 are appropriately provided. An appropriate number of through holes 14 are formed in the molding surface side surface 11 and communicate with a part of the recesses 16. That is, in this embodiment,
The through hole 14 is formed at an arbitrary position on the curved surface formed by the recess 16. However, a plurality of through-holes 14 may be formed in one recess 16, and one through-hole 14 may communicate with a plurality of recesses 16 (not shown). As described above, since the through hole 14 communicates with the recessed portion 16, the dispersion medium is rapidly introduced into the through hole 14 through the recessed portion 16, so that the papermaking mold 7 has excellent dispersion medium discharge capability. Therefore, the number of through holes to be drilled can be reduced, and the appearance of the fiber molded product obtained is good.
【００２７】次に、凹部１６と凸部１７とを備える成形
面側表面１１の形状について説明する。抄造型７の形状
や大きさ、意図する抄造性能に影響を受けるが、上述の
減圧条件により厚さ０．５〜５ｍｍの繊維成形物を得る
場合において、貫通孔１４の個数を減少させても十分な
抄造性能を得るための一つの条件としては、成形面側表
面１１の凹凸が、最大高さＲmaxで０．１ｍｍ以上ある
ことが必要であり、０．２ｍｍ以上が好ましく、０．５
ｍｍ以上とするのが更に好ましい。Ｒmaxが０．１ｍｍ
未満の場合には、凹部１６に分散媒が流れ難くなり、貫
通孔１４の数を少なくすると、所望厚さを有する繊維成
形物を抄造できなくなる場合があり好ましくない。一
方、Ｒmaxの上限は、Ｒmaxが大きくなっても抄造性能に
悪影響が出ないために特に限定されるものではないが、
あまりに大きすぎると、凹凸の形状を金網２０が転写
し、転写した形状が繊維成形物にも現れることがあるの
で好ましくない。Next, the shape of the molding surface side surface 11 having the concave portions 16 and the convex portions 17 will be described. Although affected by the shape and size of the papermaking mold 7 and the intended papermaking performance, even when the number of the through holes 14 is reduced when a fiber molded product having a thickness of 0.5 to 5 mm is obtained under the above-described reduced pressure conditions. As one condition for obtaining sufficient papermaking performance, the unevenness of the molding surface side surface 11 is required to be 0.1 mm or more at the maximum height Rmax, preferably 0.2 mm or more, and 0.5 or more.
It is more preferable that the thickness is at least mm. Rmax is 0.1mm
If it is less than the above range, it becomes difficult for the dispersion medium to flow into the recesses 16, and if the number of the through holes 14 is reduced, it may not be possible to fabricate a fiber molded product having a desired thickness, which is not preferable. On the other hand, the upper limit of Rmax is not particularly limited because it does not adversely affect the papermaking performance even if Rmax increases.
If it is too large, the irregular shape may be transferred by the metal net 20, and the transferred shape may appear in the fiber molded product, which is not preferable.
【００２８】以下、上記抄造型６、７等の構成部材の材
質等について説明する。まず、剛性体１０は、上記実施
例では金属で構成されていたが、これに限定されるもの
ではなく、樹脂、木材等で構成されていてもよい。樹脂
や木材は、切削加工が容易なので、設計変更等の際に抄
造型の形状を変更するのに便利である。また、金属系の
材料としては、銅合金（黄銅、青銅等）、アルミニウム
合金、鋳鉄、ステンレス鋼、ＺＡＳ、マグネシウム合金
等を例示できる。樹脂系の材料としては、熱可塑性樹脂
及び熱硬化性樹脂のいずれも使用できるが、抄造型（剛
性体）の作製が容易なところから熱硬化性樹脂の方が好
ましい。また、繊維強化樹脂（ＦＲＰ）を使用すると、
軽量で高強度な剛性体１０を得ることができる。また、
剛性体１０は、繊維の分散媒に対して非溶解性（代表的
には、非水溶性）であれば十分であるが、更に分散媒透
過性（代表的には、透水性）をも有する場合には、貫通
孔１４を穿設することは不要になる。なお、剛性体１０
の形状が複雑な場合には、分割した複数個の剛性体を組
み合わせて所望形状を実現してもよく、更には非水溶性
を有する複数の剛性体（分割体）を適切な空間をもって
組み合わせることにより、所望形状を有し且つ透水性を
も有する剛性体を得ることもできる。Materials and the like of the constituent members such as the papermaking molds 6 and 7 will be described below. First, although the rigid body 10 is made of metal in the above-described embodiment, the rigid body 10 is not limited to this, and may be made of resin, wood, or the like. Since resin and wood can be easily cut, it is convenient to change the shape of the papermaking mold when the design is changed. Further, examples of the metal-based material include copper alloys (brass, bronze, etc.), aluminum alloys, cast iron, stainless steel, ZAS, magnesium alloys and the like. As the resin material, either a thermoplastic resin or a thermosetting resin can be used, but the thermosetting resin is preferable from the viewpoint of easy production of the papermaking mold (rigid body). In addition, if fiber reinforced resin (FRP) is used,
A lightweight and high-strength rigid body 10 can be obtained. Also,
It is sufficient for the rigid body 10 to be insoluble (typically, water-insoluble) in the dispersion medium of the fibers, but also to have dispersion medium permeability (typically, water permeability). In some cases, it becomes unnecessary to form the through hole 14. The rigid body 10
If the shape is complicated, you may combine a plurality of divided rigid bodies to achieve the desired shape, and also combine a plurality of water-insoluble rigid bodies (divided bodies) with an appropriate space. Thus, a rigid body having a desired shape and also having water permeability can be obtained.
【００２９】次に、金網２０の材質としては、ステンレ
ス鋼、銅合金を例示できる。また、金網以外であっても
よく、例えば、ナイロン、アクリル、ポリエステル、サ
ラン樹脂等の高分子繊維、綿や麻等の天然繊維から構成
される網を使用することもできる。以上のような材質で
あれば、耐水性、耐腐食性に優れるので好ましく用いる
ことができる。Next, examples of the material of the wire net 20 include stainless steel and copper alloy. Further, a net other than a wire net may be used, and for example, a net made of polymer fibers such as nylon, acrylic, polyester, saran resin, and natural fibers such as cotton and hemp may be used. The above-mentioned materials are excellent in water resistance and corrosion resistance and can be preferably used.
【００３０】また、網２０を構成する線材の線径は、耐
久性を考慮すれば太い方が好ましいが、あまりに太すぎ
ると、繊維成形物に網の形状が顕著に転写されたり、網
を屈曲させて剛性体１０の形状に合致させて敷設するこ
とが困難になるため、適切な線径を選定する必要があ
る。代表的に、ステンレス鋼製の線材の場合には、線径
を０．０１〜２ｍｍにするのが好ましく、０．０３〜１
ｍｍにするのが更に好ましい。更に、網の目開きは、抄
造すべき繊維成形物を構成する繊維の寸法やスラリーの
性状に応じて適切な大きさを選定するのが好ましい。目
開きが大きすぎると、得られる繊維成形物の表面が粗く
なり、小さすぎると、繊維が網目につまり易くなり好ま
しくない。代表的に、網２０をステンレス鋼製線材で構
成した場合には、目開きを２０〜４０００μｍとするの
が好ましく、１００〜２０００μｍにするのが更に好ま
しい。The wire diameter of the wire material constituting the net 20 is preferably thick in consideration of durability, but if it is too thick, the net shape is remarkably transferred to the fiber molding or the net is bent. Therefore, it is difficult to lay the rigid body 10 in conformity with the shape of the rigid body 10. Therefore, it is necessary to select an appropriate wire diameter. Typically, in the case of a stainless steel wire rod, the wire diameter is preferably 0.01 to 2 mm, and 0.03 to 1
More preferably, it is set to mm. Furthermore, it is preferable to select an appropriate size of the mesh openings according to the dimensions of the fibers forming the fiber molded product to be made into paper and the properties of the slurry. If the mesh size is too large, the surface of the obtained fiber molded product will be rough, and if it is too small, the fibers will easily become clogged, which is not preferable. Typically, when the net 20 is made of a stainless steel wire rod, the mesh size is preferably 20 to 4000 μm, more preferably 100 to 2000 μm.
【００３１】なお、パルプ等の繊維をスラリーから分離
して抄造を行うための手段としては、上述のような
「網」が一般的であるが、これ以外でも多孔質電鋳や多
孔質樹脂等により得られる通水性の材料から成る分離手
段を使用することも可能である。As a means for separating fibers such as pulp from the slurry for papermaking, the above-mentioned "mesh" is generally used, but other than this, porous electroforming or porous resin is also used. It is also possible to use a separating means consisting of a water-permeable material obtained by.
【００３２】（抄造型の製造例）以下、本発明の抄造型
の製造方法の一例を、図面を参照して説明する。まず、
所望形状を有する剛性体１０を作製する（図１参照）。
その作製方法としては、鋳造、切削加工、塑性加工、溶
射、電鋳、焼結、樹脂注型等を挙げることができる。こ
れら作製法のうち、金属の鋳造、溶射又は電鋳、樹脂の
注型は、所望形状を剛性体１０に容易に付与できるのみ
ならず、剛性体表面に容易に溝１５や凹凸１６、１７
（図８参照）等を形成することができるので好ましく適
用することができる。更に、鋳造や樹脂の注型によれ
ば、剛性体１０の作製時に貫通孔１４を同時に作製する
ことも可能であり、一層好ましい。(Manufacturing Example of Paper Making Die) An example of the manufacturing method of the paper making mold of the present invention will be described below with reference to the drawings. First,
A rigid body 10 having a desired shape is manufactured (see FIG. 1).
Examples of the manufacturing method thereof include casting, cutting, plastic working, thermal spraying, electroforming, sintering, and resin casting. Among these manufacturing methods, metal casting, thermal spraying or electroforming, and resin casting not only can easily give a desired shape to the rigid body 10, but also easily form grooves 15 and irregularities 16, 17 on the surface of the rigid body.
(See FIG. 8) and the like can be formed, which is preferably applied. Furthermore, by casting or casting a resin, it is possible to simultaneously form the through holes 14 when the rigid body 10 is manufactured, which is more preferable.
【００３３】次に、鋳造等により成形面側表面１１に既
に溝等が形成されている場合を除いて、上述のようにし
て得られた剛性体１０の成形面側表面１１に所望形状の
溝１５等を形成する。この溝１５等の形成法としては、
ならい、ＮＣ加工、フライス盤加工等に代表される切削
加工の他、エッチング、ショットブラスト等を例示でき
る。Next, except for the case where a groove or the like is already formed on the molding surface side surface 11 by casting or the like, a groove having a desired shape is formed on the molding surface side surface 11 of the rigid body 10 obtained as described above. 15 etc. are formed. As a method of forming the groove 15 and the like,
In addition to cutting processing represented by tracing, NC processing, milling machine processing, etching, shot blasting and the like can be exemplified.
【００３４】次いで、剛性体１０の所定部分に貫通孔１
４を穿設する。この穿設法としては、ドリル等による穴
開け、ポンチ等による打ち抜き、エッチング等を例示で
きる。但し、貫通孔１４を穿設する時期は特に限定され
るものではなく、剛性体１０や溝１５等の作製と同時に
穿設してもよく、また、溝１５等を形成する前に穿設し
てもよく、更には、以下に説明する網２０の敷設の後に
反成形面側から穿設してもよい。Next, the through hole 1 is formed in a predetermined portion of the rigid body 10.
4 is drilled. Examples of this drilling method include drilling with a drill, punching with a punch, etching, and the like. However, the timing of forming the through hole 14 is not particularly limited, and may be formed at the same time as the manufacturing of the rigid body 10, the groove 15, and the like. Further, the through hole 14 may be formed before forming the groove 15 and the like. Alternatively, the net 20 may be pierced from the side opposite to the forming surface after the net 20 is laid as described below.
【００３５】次に、剛性体１０と網２０とを接合するこ
とにより、成形面側表面１１の一部又は全体に網２０を
敷設し、抄造型６の製造を完了する。この接合法は、剛
性体１０、網２０の材質に応じて適宜変更することがで
きるが、スポット溶接、超音波接合、ハンダ付け、ロウ
付け、接着剤による接着、ネジ止め、釘止め、ステープ
ル止め等を例示できる。また、剛性体１０が樹脂製の場
合には、同種又は異種の樹脂による化学的・熱的融着も
挙げることができる。スポット溶接や超音波接合等によ
る接合によれば、網２０を剛性体１０の表面に直接且つ
迅速に接合でき、従来の製造法における貫通孔１４を介
する金属線結着のように、貫通孔１４の存在に依存しな
くてもよく、瞬時に接合できるので、抄造型の製造効率
を向上させることができる。更に、スポット溶接によれ
ば、接合強度を超音波接合より大きくできるため、スポ
ット溶接が一層好ましい。Next, the rigid body 10 and the net 20 are joined to lay the net 20 on a part or the whole of the molding surface 11 to complete the production of the papermaking mold 6. This joining method can be appropriately changed according to the material of the rigid body 10 and the net 20, but spot welding, ultrasonic joining, soldering, brazing, adhesive bonding, screwing, nailing, stapling Etc. can be illustrated. In addition, when the rigid body 10 is made of resin, chemical and thermal fusion with the same or different resin can be used. According to the joining by spot welding, ultrasonic joining, or the like, the net 20 can be directly and quickly joined to the surface of the rigid body 10, and like the metal wire binding through the through hole 14 in the conventional manufacturing method, the through hole 14 can be formed. Since it is not necessary to depend on the existence of the above, and the joining can be performed instantly, the manufacturing efficiency of the papermaking mold can be improved. Furthermore, since spot welding can increase the joining strength as compared with ultrasonic joining, spot welding is more preferable.
【００３６】なお、スポット溶接は剛性体と網状体とを
直接、強固に接合できるという点から好ましい接合方法
であるが、網状体が易溶接材製であっても剛性体が難溶
接材製である場合の如く、両者をスポット溶接するのが
困難なことがある。ここで、「易溶接材」とは、ステン
レス鋼、炭素鋼、鋳鉄、高合金高等の溶接が容易な材料
をいい、「難溶接材」とは、合成樹脂、木材、セラミッ
クス等に代表される非導電性材料や、アルミニウム合
金、銅合金、亜鉛合金等に代表される導電性は有するが
溶接が困難な金属材料をいうものとする。上述の如く、
剛性体及び網状体のいずれか一方、特に剛性体が難溶接
材で構成される場合には、剛性体と網状体とをスポット
溶接するのが困難になる。このような場合には、剛性体
の成形面側表面の任意の位置に易溶接材から成る部材を
予め配置し、この易溶接部材と易溶接材製の網状体とを
スポット溶接することにより、剛性体と網状体とを接合
することができる。Although the spot welding is a preferable joining method in that the rigid body and the mesh-like body can be directly and strongly joined together, the rigid body is made of the difficult-welding material even if the mesh-like body is made of the easily weldable material. As in some cases, spot welding them may be difficult. Here, the “easy-welding material” refers to a material such as stainless steel, carbon steel, cast iron, and high alloy height that is easily welded, and the “difficult-welding material” is represented by synthetic resin, wood, ceramics, or the like. A non-conductive material, or a metal material represented by an aluminum alloy, a copper alloy, a zinc alloy, or the like, which has conductivity but is difficult to weld, is meant. As mentioned above
If either the rigid body or the mesh body, especially the rigid body is made of a difficult-to-weld material, it becomes difficult to spot-weld the rigid body and the mesh body. In such a case, a member made of an easily weldable material is previously arranged at an arbitrary position on the molding surface side surface of the rigid body, and by spot welding the easily weldable member and the mesh body made of the easily weldable material, The rigid body and the mesh body can be joined.
【００３７】次に、上記易溶接部材の配置態様を、図面
を参照して説明する。図１６は、成形面表面１１が凹部
形状をなす剛性体１０の部分断面図であり、同図におい
ては、剛性体１０に設けられている貫通孔１４及び成形
面側表面１１に適宜敷設されている網２０は図示してい
ない。同図に示すように、剛性体１０の成形面側表面１
１の任意の位置には、易溶接部材６０が配設されてお
り、剛性体１０と網２０とのスポット溶接は、この易溶
接部材６０を介して行われる。易溶接部材６０の形状
は、図示した形状に限定されるものではなく、スポット
溶接を行うのに支障がなければ十分であるが、図示した
ように易溶接部材６０が易溶接部材６０’のように棒状
をなす場合には、１個の易溶接部材６０’で易溶接部材
６０の複数個分のスポット溶接を行うことができるの
で、複数個の易溶接部材６０を剛性体１０に１個ずつ配
設する手間がなくなり、溶接作業効率が向上するととも
に接合強度を向上させることも可能である。また、棒状
をなす易溶接部材６０’を成形面側表面１１の凹部の隅
部１１ｅに配設すれば、網２０を多数のスポット（溶接
点）により易溶接部材６０’に溶接することができるの
で、敷設される網２０が隅部１１ｅと接近し、成形面側
表面１１の凹部の形状を忠実に模写することが可能にな
るため、得られる繊維成形物に該隅部１１ｅの形状を忠
実に転写できることになる。Next, the arrangement of the above-mentioned easily weldable members will be described with reference to the drawings. FIG. 16 is a partial cross-sectional view of the rigid body 10 in which the molding surface 11 has a concave shape. In the figure, the through holes 14 provided in the rigid body 10 and the molding surface side surface 11 are appropriately laid. The net 20 is not shown. As shown in the figure, the molding surface side surface 1 of the rigid body 10
The easy-welding member 60 is disposed at an arbitrary position of No. 1, and the spot welding between the rigid body 10 and the net 20 is performed via the easy-welding member 60. The shape of the easy-welding member 60 is not limited to the illustrated shape, and it is sufficient as long as it does not hinder the spot welding. In the case of forming a rod-like shape, spot welding of a plurality of easy-welding members 60 can be performed with a single easy-welding member 60 ′. It is possible to improve the welding work efficiency as well as the joint strength by eliminating the trouble of disposing. Further, by disposing the rod-shaped easily weldable member 60 ′ at the corner 11 e of the recessed portion of the molding surface side surface 11, the net 20 can be welded to the easily weldable member 60 ′ by a large number of spots (welding points). Therefore, the laid net 20 comes close to the corner 11e, and it becomes possible to faithfully copy the shape of the concave portion of the molding surface side surface 11, so that the shape of the corner 11e is faithfully reproduced in the obtained fiber molded product. Can be transferred to.
【００３８】易溶接部材６０を剛性体１０に配設する方
法は、抄造型の使用中に易溶接部材６０が剛性体１０か
ら離脱すること等がなければ、特に限定されるものでは
ないが、剛性体１０に雌ネジを切りこれに雄ネジを切っ
た易溶接部材６０を螺合させる方法、剛性体１０に孔を
穿設しこれに易溶接部材６０を圧入する方法、剛性体１
０に釘、楔、木ネジ形状の易溶接部材を直接打ち込む方
法又はねじ込む方法、剛性体１０に易溶接部材をロウ付
け、ハンダ付け、溶接、接着剤等により接合する方法、
易溶接部材６０を剛性体１０を構成する材料で鋳包んだ
り、樹脂で包み込んで一体化する方法を例示することが
できる。The method for disposing the easily weldable member 60 on the rigid body 10 is not particularly limited as long as the easily weldable member 60 does not separate from the rigid body 10 during use of the papermaking mold. A method in which a female screw is cut in the rigid body 10 and an easily weldable member 60 in which a male screw is cut is screwed into the rigid body 10, a method in which a hole is made in the rigid body 10 and the easily weldable member 60 is press-fitted therein, the rigid body 1
0, a method of directly driving or screwing an easily weldable member having a nail, a wedge, or a wood screw shape, a method of brazing the easily weldable member to the rigid body 10, joining it by soldering, welding, an adhesive, or the like,
Examples of the method include casting the easy-welding member 60 with the material forming the rigid body 10 or wrapping it with a resin to integrate it.
【００３９】配置する易溶接部材６０の形状は、上述の
如く特に限定されるものではなく、抄造型使用中に離脱
するようなものでなければ十分であるが、具体的には図
１７(a)〜(l)に示す形状を挙げることができる。いずれ
の形状も好適に用いることができるが、図１７(c)、(d)、
(f)及び(g)に示す形状では、剛性体１０に予め孔を設け
ておくことが不要か又はほとんど不要であり、より好ま
しい形状である。特に、図１７(g)に示す形状は単純な
板状なので容易に製作でき、且つ接合も接着等により容
易に行えるので更に好ましい形状である。なお、図１７
(e)及び(f)はネジ止め方式を採用した例である。また、
図１７(h)〜(l)に示す形状は、いずれもアンダーカット
を有する形状であるため、これら形状を有する易溶接部
材を配置するには鋳ぐるみ又は樹脂等の注型による手法
等が必要なので若干手間がかかるが、剛性体１０から離
脱しにくいという点では好ましい形状である。The shape of the easily weldable member 60 to be arranged is not particularly limited as described above, and it is sufficient as long as it does not separate during use of the papermaking mold. Specifically, FIG. ) To (l) can be mentioned. Either shape can be preferably used, but FIGS. 17 (c), (d),
In the shapes shown in (f) and (g), it is unnecessary or almost unnecessary to previously provide holes in the rigid body 10, which is a more preferable shape. In particular, the shape shown in FIG. 17 (g) is a simple plate shape, so that it can be easily manufactured and can be easily joined by bonding or the like, which is a more preferable shape. Note that FIG.
(e) and (f) are examples in which a screwing method is adopted. Also,
Since the shapes shown in FIGS. 17 (h) to (l) are all shapes having an undercut, a method such as casting or casting of resin or the like is necessary to arrange the easily weldable members having these shapes. Therefore, it is a little laborious, but it is a preferable shape in that it is difficult to separate from the rigid body 10.
【００４０】なお、図１７(a)〜(l)では、図１７(g)の
場合を除き、易溶接部材６０の頂部６０ｔが剛性体１０
の成形面側表面１１とほぼ面一の構成を採っている。こ
のように、易溶接部材６０の頂部６０ｔと成形面側表面
１１とが面一をなすようにすれば、得られる繊維成形物
の表面を滑らかにできるので好ましいといえるが、繊維
成形物表面の仕上がり具合に拘泥しなければ、必ずしも
面一にすることを要せず、頂部６０ｔが成形面側表面１
１から凸設又は凹設されていてもよい。頂部６０ｔが凸
設されている場合には、剛性体１０と網２０との間に間
隙をとることができ、パルプスラリー中の分散媒がこの
間隙を介して貫通孔１４に速やかに流れ込むことになる
ので分散媒排出力が向上し、好ましい態様ということが
できる。17 (a) to 17 (l), except for the case of FIG. 17 (g), the top 60t of the easily weldable member 60 is the rigid body 10.
The molding surface side surface 11 is substantially flush with the surface 11. As described above, it is preferable that the top 60t of the easily weldable member 60 and the molding surface side surface 11 are flush with each other, since the surface of the obtained fiber molded product can be smoothed. If it is not tied to the finish, it is not always necessary to make the surface flush, and the top 60t is the molding surface side surface 1
It may be convex or concave from 1. When the top portion 60t is provided in a convex shape, a gap can be formed between the rigid body 10 and the net 20, and the dispersion medium in the pulp slurry can quickly flow into the through hole 14 through this gap. Therefore, the discharge power of the dispersion medium is improved, and it can be said that this is a preferable embodiment.
【００４１】以上に説明したスポット溶接の例では、剛
性体１０の成形面側表面１１にそれぞれ独立して配置さ
れた易溶接部材６０に、網２０をスポット溶接する構成
を例示した。多くの場合は、上記の構成で何ら問題は生
じないが、易溶接部材６０や網２０の材質によっては、
スポット溶接部の接合強度が十分でなくなる場合があ
る。これは、易溶接部材６０が成形面側表面１１に独立
しては位置されているため、スポット溶接を行う際に溶
接電流が易溶接部材６０の内部にまで流れ難くなり、溶
接部における抵抗発熱が少なくなる場合があるからであ
る。従って、このような場合には、成形面側表面１１に
配設する易溶接部材６０に、溶接電流を十分に流すこと
のできる導電性部材の一端を予め接続しておき、この導
電性部材の他端を溶接機の電極に電気接続することによ
り、易溶接部材６０に十分な溶接電流を流すことができ
るようにするのが好ましい。In the example of spot welding described above, the construction in which the net 20 is spot-welded to the easily weldable members 60 independently arranged on the molding surface 11 of the rigid body 10 has been exemplified. In many cases, the above configuration causes no problem, but depending on the material of the easily weldable member 60 or the net 20,
The joint strength of the spot weld may become insufficient. This is because the easy-welding member 60 is independently positioned on the molding surface 11 so that the welding current does not easily flow to the inside of the easy-welding member 60 during spot welding, and resistance heat generation at the welded portion occurs. This is because there may be less. Therefore, in such a case, one end of a conductive member capable of sufficiently flowing a welding current is previously connected to the easily weldable member 60 arranged on the molding surface 11 and the conductive member is By electrically connecting the other end to the electrode of the welding machine, it is preferable to allow a sufficient welding current to flow through the easily weldable member 60.
【００４２】ところで、上述の剛性体１０と網２０との
接合において、剛性体１０の成形面側表面１１に網２０
を張るに当たり、剛性体１０の形状が比較的単純な場合
には、網２０をなるべく剛性体１０の形状に合致させて
伸ばしながら張っていく。しわになって網があまる部分
では余分な網を切除し、当該部分の網同士を重ね合わせ
たり、溶接等することにより、網２０を張る。但し、剛
性体１０自体の形状が複雑な場合には、剛性体１０を適
数に分割し、その分割体のそれぞれに網を張った後に組
合せることにより、剛性体１０に網２０を敷設してもよ
い。By the way, when the rigid body 10 and the net 20 are joined, the net 20 is formed on the surface 11 of the rigid body 10 on the molding surface side.
When the rigid body 10 has a relatively simple shape, the net 20 is stretched and stretched while conforming to the shape of the rigid body 10 as much as possible. Excessive nets are cut off at the portions where the nets are wrinkled and the nets are covered, and the nets 20 are stretched by overlapping the nets of the portions or by welding. However, when the shape of the rigid body 10 itself is complicated, the rigid body 10 is divided into an appropriate number, each divided body is netted, and then combined to form the net 20 on the rigid body 10. May be.
【００４３】（繊維成形物における文字等の表示方法の
一例）繊維成形物を包装緩衝材として使用する場合、特
に、工業用製品についての包装緩衝材として使用する場
合、繊維成形物の表面には、製品番号や記号等の微細な
文字や模様が凹凸により表示されることが多い。従来、
このような文字等は、図９(a)及び(b)に示すように、記
号４０を鋳造や機械加工等により剛性体１０の成形面側
表面１１に凹凸状に形成し、次いで、網２０を記号４０
の凹凸形状に沿わせて張り、得られた抄造型を用いて抄
造を行い、繊維成形物に記号４０を転写することにより
表示されている。しかし、このような表示方法では、微
細で狭い凹凸部を有する記号の場合には、網２０を狭い
凹凸部に正確に沿わせて張ることが困難であるため、繊
維成形物に表示される記号の輪郭が明確でなくなるとい
う問題があった。(Example of Method for Displaying Characters, etc. on Fiber Molded Product) When the fiber molded product is used as a packaging cushioning material, particularly when it is used as a packaging cushioning material for industrial products, the surface of the fiber molded product is In many cases, fine characters and patterns such as product numbers and symbols are displayed due to unevenness. Conventionally,
As shown in FIGS. 9 (a) and 9 (b), such characters are formed by forming a symbol 40 on the surface 11 on the molding surface side of the rigid body 10 by casting, machining or the like, and then forming the mesh 20. The symbol 40
It is displayed by stretching along the uneven shape of No. 3, making a paper using the obtained paper making die, and transferring the symbol 40 to the fiber molded product. However, in such a display method, in the case of a symbol having a fine and narrow uneven portion, it is difficult to stretch the net 20 along the narrow uneven portion accurately, so that the symbol displayed on the fiber molded product is difficult. There was a problem that the outline of was not clear.
【００４４】これに対して、本例によれば、図１０に示
すような構成を採用することにより、明確な輪郭を有す
る記号を表示することができる。即ち、図１０におい
て、記号４０の凹凸を形成している多孔質部分１０’に
は、網２０が敷設されていないが、微小な貫通孔が密に
存在している。従って、パルプ等の繊維は多孔質部分１
０’の表面に堆積することが可能であり、しかも多孔質
部分１０’には網２０が存在しないため、記号４０の凹
凸形状を繊維成形物に明確に転写することができる。な
お、上記多孔質部分１０’は、記号４０の凹凸形状を形
成した後に貫通孔を開けて作製してもよいし、予め貫通
孔が開けてある部材に凹凸形状を付与して作製してもよ
い。貫通孔の穿設や凹凸形状の付与は、切削加工により
行ってもよいが、放電加工により行うのが好ましい。こ
の理由は、放電加工ではバリが発生し難いため、バリで
貫通孔を塞ぐことが回避できるからである。On the other hand, according to this example, by adopting the configuration shown in FIG. 10, it is possible to display a symbol having a clear outline. That is, in FIG. 10, the net 20 is not laid in the porous portion 10 ′ forming the unevenness of the symbol 40, but minute through holes are densely present. Therefore, the fiber such as pulp has a porous portion 1
It is possible to deposit on the surface of 0 ', and since the mesh 20 does not exist in the porous portion 10', the uneven shape of the symbol 40 can be clearly transferred to the fiber molded product. The porous portion 10 ′ may be formed by forming a concavo-convex shape of symbol 40 and then forming a through hole, or by forming a concavo-convex shape on a member in which the through hole is previously formed. Good. The formation of the through hole and the provision of the uneven shape may be performed by cutting, but it is preferably performed by electric discharge machining. The reason for this is that burrs are unlikely to occur in electrical discharge machining, and therefore it is possible to avoid blocking the through holes with burrs.
【００４５】（抄造性能試験）図１１と図１２に、抄造
性能試験に使用した抄造型の代表例を示す。図１１に示
す抄造型８は、本発明の抄造型の一例を示すもので、円
板状の剛性体１０の成形面側表面１１には１２本の溝１
５が設けられており、溝１５の底部には貫通孔１４が設
けられている。ここで、剛性体１０はステンレス鋼で形
成されており、成形面側表面１１の直径はφ１２０でそ
の面積は１１３１０ｍｍ2であり、成形面側表面１１に
はステンレス製で＃４０（目開き５１５μｍ、線径φ
０．１２）の金網２０が敷設されている。また、溝１５
は幅２．５ｍｍ×深さ３ｍｍの矩形溝であり、溝１５同
士の間隔は１０ｍｍである。貫通孔１４は、１０ｍｍの
ピッチで穿設されており、孔径は２．５ｍｍで成形面側
表面１１に合計１１２個設けられている。一方、図１２
に示す抄造型９は、従来の抄造型の一例を示すもので、
貫通孔１４が穿設されているだけで溝１５が設けられて
いない以外は、抄造型８と同一の形状・寸法をなすもの
である。(Papermaking performance test) FIGS. 11 and 12 show typical examples of the papermaking mold used in the papermaking performance test. The papermaking die 8 shown in FIG. 11 shows an example of the papermaking die of the present invention. Twelve grooves 1 are formed on the molding surface side surface 11 of the disc-shaped rigid body 10.
5 is provided, and a through hole 14 is provided at the bottom of the groove 15. Here, the rigid body 10 is formed of stainless steel, the diameter of the molding surface side surface 11 is φ120 and the area thereof is 11310 mm 2 , and the molding surface side surface 11 is made of stainless steel # 40 (opening 515 μm, Wire diameter φ
0.12) wire mesh 20 is laid. Also, the groove 15
Is a rectangular groove having a width of 2.5 mm and a depth of 3 mm, and the interval between the grooves 15 is 10 mm. The through holes 14 are formed at a pitch of 10 mm, the hole diameter is 2.5 mm, and a total of 112 holes are formed on the molding surface side surface 11. On the other hand, FIG.
The papermaking mold 9 shown in Fig. 1 is an example of a conventional papermaking mold.
It has the same shape and size as the papermaking mold 8, except that the through hole 14 is provided and the groove 15 is not provided.
【００４６】上述の抄造型８又は９を、図１３に示す抄
造装置に装着し、以下に示す手順で繊維成形物を抄造し
た。 抄造型８等をパルプスラリー５０に浸漬し、減圧弁
５２を開き、減圧容器５４とチャンバー５６とを連通し
て約７５０ｍｍＨｇで減圧吸引を行い、パルプを抄造型
８の成形面側表面１１に吸着させる。なお、パルプスラ
リー５０は、パルプ濃度が１重量％で、スラリー温度は
２５〜５０℃である。 減圧弁５２を開状態にしてから３秒経過した後、回
転軸５８を中心にして抄造型８等を反転し、抄造型をス
ラリー５０から浮上させる。 このままの状態で、減圧吸引を続行し、成形面側表
面１１において抄造された繊維成形物の水分を減少させ
る。 抄造型８等をスラリー５０より浮上させてから１３
秒経過後に、減圧弁５２を閉じ、次いで、チャンバー５
６の内部から加圧することにより、繊維成形物を成形面
側表面１１から離型し、繊維成形物を得る。なお、抄造
型８がパルプで目詰まりした場合には、適宜洗浄してパ
ルプを除去した。The above-mentioned papermaking mold 8 or 9 was installed in the papermaking apparatus shown in FIG. 13 to fabricate a fiber molded product in the following procedure. The papermaking mold 8 or the like is immersed in the pulp slurry 50, the decompression valve 52 is opened, the decompression container 54 and the chamber 56 are communicated with each other, and decompression suction is performed at about 750 mmHg to adsorb the pulp to the molding surface 8 of the papermaking mold 8. Let The pulp slurry 50 has a pulp concentration of 1% by weight and a slurry temperature of 25 to 50 ° C. After 3 seconds have passed since the pressure reducing valve 52 was opened, the papermaking mold 8 and the like are inverted around the rotating shaft 58 to float the papermaking mold from the slurry 50. In this state, vacuum suction is continued to reduce the water content of the fiber molded product formed on the molding surface 11. 13 after the papermaking mold 8 etc. is floated from the slurry 50
After a lapse of seconds, the pressure reducing valve 52 is closed, and then the chamber 5
By pressing from inside 6, the fiber molded product is released from the molding surface side surface 11 to obtain a fiber molded product. When the papermaking mold 8 was clogged with pulp, the pulp was removed by appropriately washing.
【００４７】上記〜の工程を数回繰り返し、数個の
繊維成形物を得た。得られた繊維成形物を、１００℃の
熱風乾燥器中で１０時間保持して乾燥した後、電子天秤
で秤量し、繊維成形物の乾燥重量とした。数個の繊維成
形物の重量の平均値を、繊維成形物の乾燥重量の代表値
とした。The above steps (1) to (2) were repeated several times to obtain several fiber moldings. The obtained fiber molded product was dried by holding it in a hot air dryer at 100 ° C. for 10 hours and then weighed with an electronic balance to obtain the dry weight of the fiber molded product. An average value of the weights of several fiber moldings was used as a representative value of the dry weight of the fiber moldings.
【００４８】次に、図１１及び図１２に示した抄造型８
及び９の貫通孔１４の個数を、それぞれ５４個、２７
個、１４個、６個に減少させた抄造型を準備した。ここ
で、貫通孔１４が１１２個のものを抄造型８−１、５４
個のものを８−２、・・・、６個のものを抄造型８−５と
し、同様に貫通孔１４が１１２個のものを抄造型９−
１、・・・、６個のものを抄造型９−５とする。貫通孔１
４を減少させるに当たっては、成形面側表面１１に貫通
孔１４がなるべく均一に存在（残存）するようにし、貫
通孔１４が５４個の場合、貫通孔１４同士の間隔は１３
〜１５ｍｍ、２７個では１５〜３０ｍｍ、１４個では３
０〜３５ｍｍ、６個では３０〜８５ｍｍとした。上記抄
造型８−２〜８−５及び９−２〜９−５について、上述
の抄造を行い、得られた繊維成形物の乾燥重量を測定し
た。Next, the papermaking mold 8 shown in FIG. 11 and FIG.
The numbers of the through holes 14 of 9 and 9 are 54 and 27, respectively.
The number of papermaking molds reduced to 14, 14 and 6 was prepared. Here, the one having 112 through holes 14 is used as the papermaking mold 8-1, 54.
The number of pieces is 8-2, ..., The number of 6 is the papermaking die 8-5, and the number of which has 112 through holes 14 is the papermaking die 9-5.
1 ..., 6 pieces are referred to as papermaking mold 9-5. Through hole 1
In reducing 4, the through holes 14 are present (remained) as uniformly as possible in the molding surface side surface 11, and when there are 54 through holes 14, the intervals between the through holes 14 are 13
~ 15mm, 27 to 15-30mm, 14 to 3
0 to 35 mm, and 6 to 30 to 85 mm. The above-mentioned papermaking was performed for the papermaking molds 8-2 to 8-5 and 9-2 to 9-5, and the dry weight of the obtained fiber molding was measured.
【００４９】得られた各繊維成形物の乾燥重量と、各抄
造型における貫通孔１個当たりの抄造面積との関係で各
抄造型の抄造性能を評価した。ここで、貫通孔１個当た
りの抄造面積は、次式で表されるものである。貫通孔１
個当たりの抄造面積(mm2/孔)＝成形面側表面１１の面積
(mm2)／成形面側表面１１に存在する貫通孔１４の個数 繊維成形物の乾燥重量と貫通孔１個当たりの抄造面積と
の関係をグラフ化して図１４に示す。なお、参考のた
め、各抄造型における貫通孔１個当たりの抄造面積を表
１に示す。The papermaking performance of each papermaking mold was evaluated based on the relationship between the dry weight of each fiber molding obtained and the papermaking area per through hole in each papermaking mold. Here, the papermaking area per one through hole is represented by the following formula. Through hole 1
Papermaking area per piece (mm 2 / hole) = area of molding surface side surface 11
(mm 2 ) / number of through-holes 14 present on the surface 11 on the molding surface side The relationship between the dry weight of the fiber molding and the paper-making area per one through-hole is shown in a graph form in FIG. For reference, the paper making area per through hole in each paper making die is shown in Table 1.
【００５０】[0050]
【表１】 [Table 1]
【００５１】図１４から明らかなように、従来の抄造型
９−１〜９−５では、貫通孔１４の個数が減少し、貫通
孔同士の間隔が増大するにつれて、繊維成形物の乾燥重
量が減少し、次第に成形面側表面１１にパルプが吸着し
ない部分が発生し、ついには、得られた繊維成形物に穴
が開いてしまった。これに対し、本発明の範囲に属する
抄造型９−１〜９−５では、貫通孔１４の個数が減少し
ても、得られた繊維成形物の乾燥重量はほぼ一定であ
り、繊維成形物に穴が開くことはなく、抄造性能に優れ
ることがわかった。驚くべきことには、抄造型８−５で
は、溝１５が１２本であるのに対して貫通孔１４の個数
は６個であり、溝１５毎に貫通孔１４が存在するわけで
はないのに優れた抄造性能が得られた。As is clear from FIG. 14, in the conventional papermaking molds 9-1 to 9-5, as the number of through holes 14 decreases and the distance between the through holes increases, the dry weight of the fiber molded product is increased. The number gradually decreased, and a portion where the pulp was not adsorbed was gradually generated on the molding surface side surface 11, and finally a hole was formed in the obtained fiber molded product. On the other hand, in the papermaking molds 9-1 to 9-5 belonging to the scope of the present invention, even if the number of the through holes 14 is reduced, the dry weight of the obtained fiber molded product is almost constant, and the fiber molded product is almost constant. It was found that the papermaking performance was excellent because no holes were made in the hole. Surprisingly, in the papermaking mold 8-5, the number of the grooves 15 is 12, whereas the number of the through holes 14 is 6, and there is no through hole 14 for each groove 15. Excellent papermaking performance was obtained.
【００５２】以上、本発明を実施例により説明したが、
本発明はこれら実施例に限定されるものではなく、本発
明の要旨の範囲内で種々の変形が可能である。例えば、
本発明の抄造型には、上述した溝１５、凹凸１６，１
７、スリット１５’のうちの少なくとも２つを組み合わ
せて構成した抄造型も含まれる。The present invention has been described above with reference to the embodiments.
The present invention is not limited to these examples, and various modifications can be made within the scope of the present invention. For example,
In the papermaking mold of the present invention, the groove 15, the unevenness 16, 1 described above are included.
7 and a papermaking mold configured by combining at least two of the slits 15 '.
【００５３】[0053]
【発明の効果】以上説明したように、本発明によれば、
特定の溝、凹部、スリット等を設けたり、剛性体と網状
体を接合することとしたため、製作労力及び製作時間の
低減した繊維成形物の抄造型及びその製造方法、並びに
好適な外観を有する繊維成形物を提供することができ
る。また、本発明によれば、剛性体に穿設する貫通孔の
数を著しく低減し、貫通孔を穿設する工数を低減するこ
とができる。更に、本発明によれば、剛性体と網状体と
を簡易且つ短時間で接合することができ、表面に貫通孔
に対応した形跡や破れ等が存在せず、滑らかな表面を有
する繊維成形物が得られる。As described above, according to the present invention,
Since a specific groove, recess, slit or the like is provided, or a rigid body and a mesh body are joined, a paper molding die for a fiber molded product with reduced manufacturing labor and manufacturing time, a manufacturing method therefor, and a fiber having a suitable appearance A molded product can be provided. Further, according to the present invention, the number of through holes formed in the rigid body can be significantly reduced, and the number of steps for forming the through holes can be reduced. Further, according to the present invention, a rigid body and a mesh body can be simply and quickly joined together, and there is no trace or break corresponding to the through hole on the surface, and a fiber molding having a smooth surface. Is obtained.
【図１】本発明の抄造型の一実施例を示す斜視図であ
る。FIG. 1 is a perspective view showing an embodiment of a papermaking mold of the present invention.
【図２】図１に示す抄造型のＡ−Ａ切断面における部分
拡大断面図である。FIG. 2 is a partially enlarged cross-sectional view taken along the line AA of the papermaking mold shown in FIG.
【図３】溝の断面形状を示す断面説明図である。FIG. 3 is a sectional explanatory view showing a sectional shape of a groove.
【図４】溝の平面形状を示す平面説明図である。FIG. 4 is an explanatory plan view showing a planar shape of a groove.
【図５】溝に対する貫通孔の配置態様を示す平面説明図
である。FIG. 5 is an explanatory plan view showing an arrangement mode of through holes with respect to grooves.
【図６】溝の断面積を示す断面説明図である。FIG. 6 is a sectional explanatory view showing a sectional area of a groove.
【図７】図１に示す抄造型の変形例を示す斜視図であ
る。FIG. 7 is a perspective view showing a modified example of the papermaking mold shown in FIG.
【図８】本発明の他の抄造型の一実施例を示す斜視図で
ある。FIG. 8 is a perspective view showing another embodiment of the papermaking mold of the present invention.
【図９】従来の文字等の表示方法を示す平面及び断面説
明図である。FIG. 9 is a plan view and a cross-sectional explanatory view showing a conventional method for displaying characters and the like.
【図１０】本発明に係る文字等の表示方法を示す断面説
明図である。FIG. 10 is a cross-sectional explanatory view showing a method for displaying characters and the like according to the present invention.
【図１１】本発明の抄造型の一例を示す平面図である。FIG. 11 is a plan view showing an example of the papermaking mold of the present invention.
【図１２】従来の抄造型の一例を示す平面図である。FIG. 12 is a plan view showing an example of a conventional papermaking mold.
【図１３】抄造性能を評価する装置を示す概略配置図で
ある。FIG. 13 is a schematic layout diagram showing an apparatus for evaluating papermaking performance.
【図１４】抄造性能を示す線図である。FIG. 14 is a diagram showing papermaking performance.
【図１５】従来の抄造型の一例を示す斜視図である。FIG. 15 is a perspective view showing an example of a conventional papermaking mold.
【図１６】成形面表面１１に易溶接部材６０を配設した
状態を示す斜視図である。FIG. 16 is a perspective view showing a state in which an easily weldable member 60 is provided on the molding surface 11;
【図１７】易溶接部材６０の形状を示す断面図である。FIG. 17 is a sectional view showing the shape of an easily weldable member 60.
６，７，８ 抄造型、１０ 剛性体、１１ 成形
面側表面、１２ 反成形面側表面、１４ 貫通孔、
１５ 溝、１５’ スリット、２０ 網、１６
凹部、１７ 凸部、５０ パルプスラリー、５２減
圧弁、５４ 減圧容器、５６ チャンバー、５８
回転軸、６０ 易溶接部材6,7,8 Papermaking mold, 10 Rigid body, 11 Molding surface side surface, 12 Non-molding surface side surface, 14 Through holes,
15 groove, 15 'slit, 20 mesh, 16
Concave part, 17 convex part, 50 pulp slurry, 52 pressure reducing valve, 54 pressure reducing container, 56 chamber, 58
Rotating shaft, 60 easily welded parts
Claims (13)
剛性体と、この剛性体の成形面側表面の一部又は全体に
敷設された網状体と、を備えた繊維成形物の抄造型にお
いて、 上記成形面側表面に分散媒案内路を有することを特徴と
する繊維成形物の抄造型。1. A fibrous molded article comprising a rigid body having a desired shape and having through holes formed therein, and a mesh body laid on a part or the whole of the molding surface side surface of the rigid body. In the papermaking mold, a papermaking mold for a fiber molded product, which has a dispersion medium guide path on the molding surface side surface.
いることを特徴とする請求項１記載の抄造型。2. The papermaking mold according to claim 1, wherein the dispersion medium guide path is formed by a groove.
ていることを特徴とする請求項１又は２記載の抄造型。3. The papermaking mold according to claim 1 or 2, wherein the dispersion medium guide path communicates with the through hole.
剛性体と、この剛性体の成形面側表面の一部又は全体に
敷設された網状体と、を備えた繊維成形物の抄造型にお
いて、 上記成形面側表面に凹凸を有し、上記貫通孔が該凹部及
び／又は該凸部と連通していることを特徴とする繊維成
形物の抄造型。4. A fibrous molded article comprising a rigid body having a desired shape and having through holes formed therein, and a mesh body laid on a part or the whole of the molding surface side surface of the rigid body. In the papermaking mold, a papermaking mold for a fiber molded product, wherein the molding surface side surface has irregularities, and the through holes communicate with the recesses and / or the projections.
の成形面側表面の一部又は全体に敷設された網状体と、
を備えた繊維成形物の抄造型において、 上記剛性体がスリットを備えることを特徴とする繊維成
形物の抄造型。5. A rigid body having a desired shape, and a net-like body laid on a part or the whole of the molding surface side surface of the rigid body,
A paper mold for a fiber molded article, wherein the rigid body is provided with slits.
る剛性体と、この剛性体の成形面側表面の一部又は全体
に敷設された網状体と、を備えた繊維成形物の抄造型で
あって、 上記剛性体と網状体とが接合されて成ることを特徴とす
る繊維成形物の抄造型。6. A fibrous molded article comprising a rigid body having a desired shape and having water insolubility and water permeability, and a mesh body laid on a part or the whole of the molding surface side surface of the rigid body. A papermaking mold for a fiber molded product, which is characterized in that the rigid body and the mesh body are joined together.
性の材料に貫通孔を穿設して成ることを特徴とする請求
項６記載の繊維成形物の抄造型。7. The papermaking mold for a fiber molding according to claim 6, wherein the rigid body is formed by forming a through hole in a water-insoluble material having a desired shape.
記剛性体が難溶接材から成り、この剛性体の成形面側表
面の任意の位置に易溶接部材が配設され、この易溶接部
材と該網状体とが溶接されて成ることを特徴とする請求
項６又は７記載の繊維成形物の抄造型。8. The net-like body is made of an easily-weld material, the rigid body is made of a difficult-welding material, and the easily-weld member is disposed at an arbitrary position on the molding surface side surface of the rigid body. The papermaking mold for a fiber molded article according to claim 6 or 7, wherein the member and the mesh body are welded together.
り、所望形状を有し非水溶性で透水性を有する剛性体を
作製し、この剛性体に網状体を接合することにより該剛
性体の成形面側表面の一部又は全体に該網状体を敷設す
ることを特徴とする繊維成形物抄造型の製造方法。9. When manufacturing a papermaking mold for a fiber molded product, a rigid body having a desired shape, water-insoluble and water-permeable is produced, and a mesh body is joined to the rigid body to form a rigid body. A method for manufacturing a fiber-molded papermaking mold, characterized in that the net-like body is laid on a part or the whole of the molding surface side surface.
性の材料から成り、上記敷設を行う前又は後に、該剛性
体に貫通孔を穿設することを特徴とする請求項９記載の
繊維成形物抄造型の製造方法。10. The fiber according to claim 9, wherein the rigid body is made of a water-insoluble material having a desired shape, and a through hole is formed in the rigid body before or after the laying. A method for manufacturing a molded article forming die.
上記網状体が易溶接材から成り、該網状体を該剛性体に
敷設するに際し、該剛性体の成形面側表面の任意の位置
に易溶接部材を配設し、この易溶接部材と該網状体とを
溶接することを特徴とする請求項９又は１０記載の繊維
成形物抄造型の製造方法。11. The rigid body is made of a difficult-to-weld material, and the net-like body is made of an easily-weldable material. When the net-like body is laid on the rigid body, the rigid body is placed at an arbitrary position on the molding surface side. 11. The method for manufacturing a fiber-molding papermaking die according to claim 9, wherein an easily weldable member is provided on the sheet, and the easily weldable member and the net-like body are welded to each other.
設けることを特徴とする請求項９〜１１のいずれか１つ
の項に記載の製造方法。12. The manufacturing method according to claim 9, wherein the rigid body is provided with unevenness or a dispersion medium guide path.
載の抄造型を使用して得られることを特徴とする繊維成
形物。13. A fiber molding obtained by using the papermaking mold according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15500694A JPH0849200A (en) | 1994-03-23 | 1994-07-06 | Screen mold for fiber-molding, production of screening mold and screen-molded product |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5200194 | 1994-03-23 | ||
| JP6-52001 | 1994-06-02 | ||
| JP12137394 | 1994-06-02 | ||
| JP6-121373 | 1994-06-02 | ||
| JP15500694A JPH0849200A (en) | 1994-03-23 | 1994-07-06 | Screen mold for fiber-molding, production of screening mold and screen-molded product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0849200A true JPH0849200A (en) | 1996-02-20 |
Family
ID=27294509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15500694A Pending JPH0849200A (en) | 1994-03-23 | 1994-07-06 | Screen mold for fiber-molding, production of screening mold and screen-molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0849200A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001079609A1 (en) * | 2000-04-18 | 2001-10-25 | Kao Corporation | Method of producing pulp moldings |
| JP2004098581A (en) * | 2002-09-12 | 2004-04-02 | Sanki Tekkosho:Kk | Molding tool |
| US6857199B2 (en) | 2000-03-23 | 2005-02-22 | Kao Corporation | Drying sand mold for pulp moldings |
| US7008509B1 (en) | 1999-08-04 | 2006-03-07 | Kao Corporation | Molded body with projected part, dry mold for manufacturing the molded body, and method and device for manufacturing the molded body |
| JP2008208515A (en) * | 2005-06-06 | 2008-09-11 | Metso Paper Inc | Runnability component in paper machine or similar, and method for manufacturing runnability component |
| CN108824095A (en) * | 2018-07-18 | 2018-11-16 | 浙江家得宝科技股份有限公司 | Fishing sizing device and its fishing paste-making method in a kind of disposable fibrous tableware moulding equipment |
| CN112626929A (en) * | 2018-11-27 | 2021-04-09 | 永发（江苏）模塑包装科技有限公司 | Pulp molding pulp suction mold with uniform pulp suction and application |
| CN114438830A (en) * | 2020-10-19 | 2022-05-06 | 维美德技术有限公司 | Mould for manufacturing moulded fibre products |
-
1994
- 1994-07-06 JP JP15500694A patent/JPH0849200A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7008509B1 (en) | 1999-08-04 | 2006-03-07 | Kao Corporation | Molded body with projected part, dry mold for manufacturing the molded body, and method and device for manufacturing the molded body |
| US6857199B2 (en) | 2000-03-23 | 2005-02-22 | Kao Corporation | Drying sand mold for pulp moldings |
| WO2001079609A1 (en) * | 2000-04-18 | 2001-10-25 | Kao Corporation | Method of producing pulp moldings |
| US6918997B2 (en) | 2000-04-18 | 2005-07-19 | Kao Corporation | Method of producing pulp moldings |
| JP2004098581A (en) * | 2002-09-12 | 2004-04-02 | Sanki Tekkosho:Kk | Molding tool |
| JP2008208515A (en) * | 2005-06-06 | 2008-09-11 | Metso Paper Inc | Runnability component in paper machine or similar, and method for manufacturing runnability component |
| CN108824095A (en) * | 2018-07-18 | 2018-11-16 | 浙江家得宝科技股份有限公司 | Fishing sizing device and its fishing paste-making method in a kind of disposable fibrous tableware moulding equipment |
| CN112626929A (en) * | 2018-11-27 | 2021-04-09 | 永发（江苏）模塑包装科技有限公司 | Pulp molding pulp suction mold with uniform pulp suction and application |
| CN114438830A (en) * | 2020-10-19 | 2022-05-06 | 维美德技术有限公司 | Mould for manufacturing moulded fibre products |
| CN114438830B (en) * | 2020-10-19 | 2024-05-10 | 维美德技术有限公司 | Mould for manufacturing moulded fibre products |
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| A02 | Decision of refusal |
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