【０００１】
【産業上の利用分野】
本発明は、複層型抄造品の製造方法及び装置。詳しくは型の表面に繊維による粉粒体の遮蔽層を形成させてから、その上に粉粒体層、又は粉粒体と繊維の混合体層を形成させることにより、粉粒体が保有する機能を製品の内容物や製品の周囲の環境などに有効に作用させ得る型抄造品を安定的に容易に製造し得る方法及び装置に関する。
【０００２】
【従来の技術】
従来、繊維懸濁液中に型を浸漬して内部を減圧することにより、型の表面に繊維層を付着させて型抄造品を得る技術は、パルプモールドとして周知であり、一部に於て容器や包装用パッキン等の製造に利用されている。しかし、この方法では吸湿、脱臭、磁気・電磁波の放射、薬効、肥効、その他、多くの機能を有する粉粒体の層を形成することは不可能であり、又、これら粉粒体を繊維と混合すれば層を形成させることはできても、この場合、粉粒体の多くが排水と共に流出するためロスが多く、又製品化した後も粉粒体の離脱が生じて安定した製品を得られない問題点がある。
【０００３】
【発明が解決しようとする課題】
本発明は、前記問題点を解決するためになされたもので、型表面にあらかじめ繊維による粉粒体の遮蔽層を形成させて、その上に粉粒体層か、粉粒体と繊維との混合体層を重設することにより、従来不可能な粉粒体層の抄造形成を可能にすると共に、粉粒体と繊維との混合層の抄造形成も粉粒体のロスや製品からの離脱が少ない状態で安定して行える複層型抄造品の製品方法及び装置を提供する。
【０００４】
【課題を解決するための手段】
本発明に係る方法及び装置は、前記課題を解決するため製品形状に合わせて形成した型を繊維を主体とする原料の懸濁液中に浸漬してその中側を減圧し、型の表面に繊維による粉粒体の遮蔽層を形成させた後、該型を粉粒体の懸濁液か、粉粒体と繊維の混合体の懸濁液中に移して中側を減圧し、前記遮蔽層の外側に粉粒体層か、粉粒体と繊維の混合体層を形成させる操作を任意回数行い前記各層が重合した製品を得てこれを脱型する方法と、工程順に配列した複数の原料懸濁液槽と、これら懸濁液槽の上へ型を順次に位置付けする移動手段と、型の位置付けに伴い前記型を懸濁液中へ所定時間浸漬して引き上げる昇降手段と、型が懸濁液中へ浸漬されるとき型内を減圧して型の表面に原料層を付着させる減圧手段とを備えさせた構成とを採用し、前記方法及び装置の実施に際しては、製品形状に合わせて形成した型を繊維を主体とする原料の懸濁液中に浸漬してその中側を減圧し、型の表面に繊維による粉粒体の遮蔽層を形成させた後、該型を粉粒体の懸濁液か、粉粒体と繊維の混合体の懸濁液中に移して中側を減圧し、前記遮蔽層の外側に粉粒体層か、粉粒体と繊維の混合体層を形成させる操作を任意回数行い、更に型を繊維を主体とする懸濁液中に移して内部を減圧することにより、粉粒体層か、粉粒体と繊維の混合体層の上に繊維層を重設した製品を得てこれを脱型する方法及び表面に粉粒体の遮蔽層と、粉粒体層か、粉粒体と繊維の混合体層が重設された型抄造品、又は型の表面に粉粒体の遮蔽層と、粉粒体層か、粉粒体と繊維の混合体層及び繊維層が重設された型抄造品を外型に受け取り、この外型と圧搾用の中型とで挟圧させて、型抄造品の水分の搾出と外面の成形とを行わせる方法と、型から形成された複層の型抄造品を受け取る外型と、受け取った型抄造品の中へ進入して前記外型とで抄造品を圧搾する圧搾用中型とを備えさせた装置とを採用することが望ましいものである。
【０００５】
【作用】
本発明に係る複層型抄造品の製造方法及び装置は、各原料槽にそれぞれ原料懸濁液を供給して装置を運転すると、型はまず最初の原料槽の繊維を主体とした懸濁液中へ浸漬されて内部を減圧されるため、その表面に繊維による粉粒体の遮蔽層を形成されるから、このとき型内の減圧を停止して原料槽から引き上げ、次の原料槽上へ移して粉粒体の懸濁液中か、粉粒体と繊維の混合懸濁液中に浸漬して型内を減圧すれば、前記遮蔽層が粉粒体の排出を阻止するために遮蔽層の上に粉粒体層か、粉粒体と繊維の混合体層がロスなく確実に形成されるので、型を原料槽から引きげて製品を脱型すれば二層の型抄造品が得られる。しかし、前記した粉粒体層か粉粒体と繊維の混合層の上に更に被覆層を形成する必要がある場合は、型をその次の原料槽上に移動させ、繊維を主体とした懸濁液中へ浸漬して型の内を減圧すれば、粉粒体層か粉粒体と繊維の混合体層の上に繊維の被覆層が形成されるから、型を原料槽から引き上げて製品を脱型すれば三層の型抄造品が得られるものであり、更に粉粒体が有する機能を複合的に利用したい場合は、粉粒体層か粉粒体と繊維との混合体層を二層以上設ける必要があるので、この場合は原料槽を４槽以上に増し、型を懸濁液に浸漬する操作を４回以上行えば、４層以上の型抄造品を得ることができるものである。
【０００６】
尚、この複層型抄造品の製造においては、各層の重合によって製品の厚さが厚くなり含水量も多くなるから、抄造を完了した製品は外型に受けて型より取り外し、抄造品の中へ内型を押し込んで前記外型とにより挟圧させれば、圧搾による抄造品の搾水が行われると共に、外型へ外面圧接によって外面の型成形も行われて、製品を形状が正確で乾燥も速いものにすることができるものである。
【０００７】
【実施例】
以下に本発明に係る複層型抄造品の製造方法及び装置の実施例を図面に基づいて説明する。
【０００８】
図１は本発明に係る複層型抄造品の製造装置の一実施例を示す概要構成図。図２は同上実施例の第１槽の懸濁液中で型の内側を減圧し、外側に繊維による粉粒体の遮蔽層を形成させた状態の断面図。図３は同上実施例の第２槽の懸濁液中で型の内側を減圧し、遮蔽層の上に粉粒体層か、粉粒体と繊維との混合層を形成させた状態の断面図。図４は同上実施例の第３槽の懸濁液中において型の内側を減圧し、粉粒体層か、粉粒体と繊維との混合体層の上に被覆層の形成させた状態の断面図。図５は同上実施例において遮蔽層、粉粒体層又は粉粒体と繊維の混合体層、被覆層が重設された型抄造品に外型を嵌め、この型内を減圧して型抄造品を外型へ移す状態の断面図。図６は同上実施例において型抄造品が外型へ移された状態の断面図。図７は同上実施例において外型に移された型抄造品を外型と内型とで挟圧し搾水と外面成形とを行って、型抄造品を内型へ移すため内型の内部を減圧する状態の断面図。図８は同上実施例において型抄造品を移された内型の内側を型抄造品を離脱するために増圧させる状態の断面図。図９は同上実施例において内型から離脱された複層の型抄造品を示す断面図である。
【０００９】
図１において符号１、２、３は複数の原料槽を示すもので、第１の原料槽１は図９に一例を示す複層型抄造品４の粉粒体遮蔽層ａを形成させる繊維を主体とする懸濁液を給送管５により供給し、第２の原料槽２は中間層ｂを形成させる粉粒体層か、粉粒体と繊維の混合体層ｂを形成させる懸濁液を給送管６により供給し、第３の原料槽３は被覆層ｃを形成させる原料懸濁液を給送管７により供給するもので、第１原料槽１の懸濁原料は、後記する型の搾水孔を通過しない繊維を主体として遮蔽層ａを少ない原料ロスで確実に形成させ、第２原料槽２と第３原料槽３の原料は、前記遮蔽層ａが搾水孔を遮蔽して粉粒体の通過を阻止するため、粉粒体だけを用いることも、又、粉粒体と繊維の混合体を用いることもできる。そして繊維原料としては各種のパルプ、化学合成繊維、ガラス繊維、炭素繊維、金属繊維等を用い、粉粒体としては吸湿、脱臭、磁気・電磁波の放射、薬効、肥効、その他、多くの機能を有するセラミック、活性炭、ロックウール、ゼオライト、吸湿性ポリマー、各種澱粉、薬剤、肥料、各種のスラッジ、その他を任意に選択できる。
【００１０】
同図において符号８は型抄造品４を成形する型を示すもので、希望する製品の内側に合致する形状に形成して、その全面に図２〜図５に示すように微細な搾水孔９を開口させ、上部には吸引管１０を接続した減圧室１１を連設することにより、この型８を原料層１〜３内の懸濁液中に浸漬して、吸引管１０により減圧室１１内を減圧すると、懸濁液中の液分は搾水孔９と吸引管１０を経て排出され、懸濁原料が型８の外面に付着するから、第１の原料槽１では型８の表面に粉粒体の遮蔽層ａが、第２の原料槽２では遮蔽層ａの上に粉粒体層か、粉粒体と繊維の混合体層ｂが、第３の原料槽３では粉粒体層か、粉粒体と繊維の混合体層ｂの上に被覆層ｃが形成される。
【００１１】
同図において符号１２は前記型８を移動させる移動枠を示すもので、前記複数の原料槽１〜３の上方に配設した水平ガイド１３に移動自在に係合させ、この移動枠１２にモータ１４により回転される移動手段の送りねじ１５を螺合させることにより、該送りねじ１５を一方へ回転させると、移動枠１２が第１原料槽１の位置から第３原料槽３へ向かって進み、移動枠１２へ昇降杆１６により取り付けられる型８を第１、第２、第３の各原料槽１、２、３の上へ順次に位置付けするが、モータ１４により送りねじ１５を他方へ回転させると、移動枠１２は第３の原料槽３の位置から第１の原料槽１へ向かって戻り、型８を第１の原料槽１の上へ位置付けする。
【００１２】
同図において符号１７は前記型８を昇降させる手段のシリンダを示すもので、前記型８が移動枠１２によって原料槽１、２、３のいずれかの上に位置付けされたとき、ロッド１８を下降させて型８を原料槽１、２、３のいずれかの懸濁液中に浸漬し、この状態を一定時間保持させてからロッド１８を上昇させて型８を懸濁液中から引き上げ、次の原料槽上へ移動させる。
【００１３】
同図において符号１９は形成された型抄造品４を型８から受け取る外型を示すもので、この外型１９は形成された型抄造品４の外形に合致する形状に形成して、その全面に図５〜図７に示すように微細な搾水孔２０を開口させ、下部には吸引管２１を接続した減圧室２２を連設してあり、この外型１９は前記昇降手段１７により型８が第３槽３の上方へ引き上げられると第３の原料槽３上へ移動され、昇降手段１７により型８が下降されて型抄造品４を外型１９内に収まらせたとき、吸引管２１により減圧室２２を減圧して型抄造品４を型８から受け取る。
【００１４】
同図において符号２３は前記外型１９の移動手段としてのシリンダを示すもので、そのロッド２４を減圧室２２に連結して、前記した型８により型抄造品４の粉粒体の遮蔽層ａ、粉粒体層か粉粒体と繊維の混合体層ｂ、被覆層ｃが形成される間は図１に実線で示す待機位置に外型１９を待機させ、遮蔽層ａと粉粒体層か、粉粒体と繊維との混合体層ｂと被覆層ｃとの形成を終わって型８が引き上げられるとき、ロッド２４により型１９を第３の原料槽３の上へ移動させ、型９の下降により型抄造品４が外型１９へ移されると、ロッド２４により型抄造品４を待機位置へ取り出す。
【００１５】
同図において符号２５は前記外型１９に取り出された型抄造品４を圧搾する内型で、型抄造品４の内形に合致する形状に形成して、その全面に図７、図８に示すように微細な搾水孔２６を開口させ、上部には吸引管２７を接続した減圧室２８を連設して、この内型２５を前記外型１９が待機位置へ型抄造品４を取り出したとき、型抄造品４の中へ押し込むことにより内型２５と外型１９とで型抄造品４を圧搾させ、強制的な水分の搾出を行うと共に外型１９で型抄造品４の外面成形を行わせ、この操作が終わると吸引管２７により内型２５内を減圧して、外型１９に支持された型抄造品４をこの内型２５に受け取らせ、内型２５を後記する搬出コンベア上へ移動させて吸引管２７に圧搾空気を送り、減圧室２８を増圧すると型抄造品４は内型２５から離れてコンベアへ落される。
【００１６】
同図において符号２９は前記内型２５を移動させる移動枠で、前記外型１９の待機位置の上方から型抄造品４の搬出コンベア３０の上方に跨って配設した水平ガイド３１に移動自在に係合させ、この移動枠２９にモータ３２により回転される移動手段の送りねじ３３を螺合させ、この送りねじ３３を一方へ回転させると昇降杆３４により移動枠２９に取り付けられた内型２５が外型１９の待機位置上から搬出コンベア３０上へ移動され、送りねじ３３を他方へ回転させると、搬出コンベア３０上から外型２５の待機位置へ移動される。
【００１７】
同図において符号３５は前記内型２５を昇降させる手段のシリンダを示すもので、前記内型２５が移動枠２９によって外型１９の待機位置上に移動されたとき、ロッド３６により内型２５を下降させてこれを型抄造品４の中に圧入し、内型２５と外型１９とで型抄造品４を圧搾して強制搾液と型抄造品４の外面成形とを行わせ、これが終わるとロッド３６により内型２５を引き上げて内型２５に支持される型抄造品４を搬出コンベア３０上へ移動させ、型抄造品４が搬出コンベア３０へ落とされると外型１９を前記した待機位置へ戻す作用を行う。
【００１８】
【実験例１】
ＬＢＫパルプ５０％、新聞脱墨パルプ５０、スラリー濃度０．６％の繊維懸濁液に型を浸漬して内部を減圧して型表面への原料吸着を３秒間行い、次にＮＢＫパルプ３０％、活性炭粉末７０％、スラリー濃度１％の粉粒体と繊維の混合懸濁液中に型を移して、内部を減圧して型表面へ原料吸着を５分間行い、その次にＮＢＫパルプ１００％、スラリー濃度０．６％の繊維懸濁液中に浸漬して内部を減圧し、原料の吸着を８秒間行った。その結果、粉粒体の遮蔽層ａが形成された上に活性炭と繊維の混合層ｂが重ねられ、更にこの層ｂ上に被覆層ｃが形成されるため、吸湿、脱臭等の機能を有する活性炭がロスなく固定されて製品からの離脱も生じない安定した複層型抄造品を得ることができた。
【００１９】
【発明の効果】
前述した通り本発明に係る複層型抄造品の製造方法及び装置は、型の表面にあらかじめ繊維により粉粒体の遮蔽層を形成させて置き、その上に粉粒体層か、粉粒体と繊維の混合体層を形成させるから、吸湿、脱臭、磁気・電磁波の放射、薬効、肥効、その他、の機能を有する粉粒体の層が確実に内在する製品を原料ロスもなく確実に製造できて、しかも型抄造によるため製品は均一性に優れて価格も安い特徴があり、かつ、機能の異なる粉粒体層や粉粒体と繊維の混合層を重ねて、複合的な機能を有する製品を得ることが容易であるし、又、機能を有する層の外に被覆層を重ねてこれらの保護を計ることも簡便にできる等の幾多の優れた特徴を有するものである。
【図面の簡単な説明】
【図１】本発明に係る複層型抄造品の製造装置の一実施例を示す概要構成図である。
【図２】同上実施例の第１槽の懸濁液中で型の内側を減圧し、外側に繊維による粉粒体の遮蔽層を形成させた状態の断面図である。
【図３】同上実施例の第２槽の懸濁液中で型の内側を減圧し、遮蔽層の上に粉粒体層か、粉粒体と繊維との混合層を形成させた状態の断面図である。
【図４】同上実施例の第３槽の懸濁液中において型の内側を減圧し、粉粒体層か、粉粒体と繊維との混合層の上に被覆層を形成させた状態の断面図である。
【図５】同上実施例において遮蔽層、粉粒体層又は粉粒体と繊維の混合層、被覆層を重設された型抄造品に外型を嵌め、この型内を減圧して型抄造品を外型へ移す状態の断面図である。
【図６】同上実施例において型抄造品が外型へ移された状態の断面図である。
【図７】同上実施例において外型に移された型抄造品を外型と内型とで圧搾し搾水と外面の成形とを行って、型抄造品を内型へ移すためその内側を減圧する状態の断面図である。
【図８】同上実施例において型抄造品を移された内型の内側を型抄造品を離脱するために増圧させる状態の断面図である。
【図９】同上実施例において内型から離脱された複層の型抄造品を示す断面図である。
【符号の説明】
１、２、３ 原料槽
８ 成形用の型
１５ 型の移動手段
１７ 型の昇降手段
１０ 型内の減圧手段
２２ 製品を受け取る外型
２５ 製品を圧搾する内型[0001]
[Industrial applications]
The present invention relates to a method and an apparatus for producing a multilayer paper product. Specifically, after forming a shielding layer of the granular material with the fiber on the surface of the mold, the granular material is retained by forming the granular material layer or the mixed layer of the granular material and the fiber thereon. The present invention relates to a method and an apparatus capable of stably and easily producing a mold paper product capable of effectively exerting a function on the contents of a product and an environment around the product.
[0002]
[Prior art]
Conventionally, a technique for obtaining a mold paper product by attaching a fiber layer to the surface of a mold by immersing the mold in a fiber suspension and depressurizing the inside is known as a pulp mold, and in some cases, it is known as a pulp mold. It is used for manufacturing containers and packing for packing. However, with this method, it is impossible to form a layer of particles having many functions, such as moisture absorption, deodorization, magnetic / electromagnetic radiation, medicinal effects, fertilizing effects, and the like. Can form a layer if mixed with water, but in this case, many of the powder and granules flow out together with the wastewater, resulting in a large loss. There are problems that cannot be obtained.
[0003]
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-described problems, and a shielding layer of a granular material is formed in advance on a mold surface by a fiber, and a granular layer or a granular material and a fiber are formed thereon. The layering of the mixture layer enables the formation of a layer of the powder and granules, which is impossible in the past, and the formation of the layer of the mixture of the particles and the fibers also reduces the loss of the particles and separation from the product. Provided are a method and an apparatus for producing a multi-layered paper product which can be stably performed in a state where the amount is small.
[0004]
[Means for Solving the Problems]
The method and the apparatus according to the present invention are as follows.In order to solve the above problems, a mold formed according to the product shape is immersed in a suspension of a raw material mainly composed of fibers, and the inside thereof is depressurized, and the surface of the mold is After forming the shielding layer of the granular material by the fiber, the mold is transferred into a suspension of the granular material or a suspension of the mixture of the granular material and the fiber, and the inside is depressurized, and the shielding is performed. A method of forming a granulated material layer on the outside of the layer or an arbitrary number of times of forming a mixed material layer of the granulated material and the fiber to obtain a polymerized product of each layer and demolding the product, A raw material suspension tank, moving means for sequentially positioning the molds on these suspension tanks, elevating means for immersing the molds in the suspension for a predetermined time and pulling them up with the positioning of the molds, A pressure reducing means for depressurizing the inside of the mold when immersed in the suspension and attaching a raw material layer to the surface of the mold is adopted. In carrying out the method and the apparatus, the mold formed according to the product shape is immersed in a suspension of a raw material mainly composed of fibers and the inside thereof is depressurized, and the powdery and granular material of the fibers is formed on the surface of the mold. After the shielding layer is formed, the mold is transferred into a suspension of a granular material or a suspension of a mixture of a granular material and a fiber, and the inside is decompressed. An operation for forming the granular layer or the mixed layer of the granular material and the fiber is performed an arbitrary number of times, and further, the mold is transferred into a suspension mainly composed of the fiber, and the inside thereof is depressurized to thereby form the granular layer. A method of obtaining a product in which a fiber layer is laid on a mixture layer of a powder and a granule and removing the product, and a shielding layer of the powder and a powder layer on the surface; A mold paper product with a fiber mixture layer superimposed, or a powdery and granular shielding layer and a powder or granule layer, or a powder and granule mixture layer and a fiber layer on the surface of the mold Molded paper products A method in which the outer mold is received and squeezed between the outer mold and the middle mold for pressing to squeeze out the moisture of the molded article and form the outer surface, and a multilayer molded article formed from the mold. It is desirable to employ an apparatus provided with an outer die for receiving the paper mold, and a middle press for pressing into the papermaking product by entering the received papermaking product and pressing the papermaking product with the outer die.
[0005]
[Action]
The method and apparatus for producing a multilayer papermaking product according to the present invention are as follows. When the apparatus is operated by supplying a raw material suspension to each raw material tank, the mold is initially a suspension mainly composed of fibers in the first raw material tank. Since the inside is immersed and the inside is decompressed, a shielding layer of the powder and granules is formed on the surface by the fiber. If the inside of the mold is decompressed by transferring and immersing in the suspension of the granular material or the mixed suspension of the granular material and the fiber, the shielding layer prevents the discharging of the granular material. A layer of powder or granules or a layer of a mixture of powder and granules is reliably formed on the surface of the container, so if the mold is pulled out of the raw material tank and the product is demolded, a two-layer mold paper is obtained. Can be However, when it is necessary to further form a coating layer on the above-mentioned granular material layer or the mixed layer of the granular material and the fiber, the mold is moved to the next raw material tank, and the fiber-based suspension is formed. If the inside of the mold is depressurized by immersion in a suspension, a fiber coating layer will be formed on the granular layer or the mixture layer of the granular material and the fiber. When the mold is removed from the mold, a three-layered molded article can be obtained.If it is desired to use the functions of the granules in a complex manner, the granule layer or the mixture layer of the granules and fibers is used. Since it is necessary to provide two or more layers, in this case, the raw material tank is increased to four or more tanks, and the operation of immersing the mold in the suspension is performed four or more times, whereby a mold paper product having four or more layers can be obtained. It is.
[0006]
In addition, in the production of this multi-layered paper product, the polymerization of each layer increases the thickness of the product and increases the water content. If the inner mold is pushed in and pressed with the outer mold, the paper is squeezed by squeezing, and the outer surface is also molded by pressing the outer surface to the outer mold. It can be dried quickly.
[0007]
【Example】
Hereinafter, embodiments of a method and an apparatus for producing a multilayer paper product according to the present invention will be described with reference to the drawings.
[0008]
FIG. 1 is a schematic configuration diagram showing one embodiment of a multi-layer type paper product manufacturing apparatus according to the present invention. FIG. 2 is a cross-sectional view showing a state in which the inside of the mold is depressurized in the suspension of the first tank of the embodiment and a shielding layer of the granular material is formed by fibers on the outside. FIG. 3 is a cross-sectional view showing a state in which the inside of the mold is depressurized in the suspension of the second tank in the above embodiment, and a granular layer or a mixed layer of the granular material and fibers is formed on the shielding layer. FIG. FIG. 4 shows a state where the inside of the mold is depressurized in the suspension of the third tank of the above embodiment, and a coating layer is formed on the granule layer or the mixture layer of the granules and fibers. Sectional view. FIG. 5 shows an example in which the outer mold is fitted to a mold paper product having a shielding layer, a granular material layer or a mixture layer of a granular material and a fiber, and a coating layer. Sectional drawing in the state which transfers an article to an outer type | mold. FIG. 6 is a cross-sectional view showing a state in which the mold paper is transferred to the outer mold in the embodiment. FIG. 7 shows the inside of the inner mold for transferring the mold paper product to the inner mold by pressing the mold paper product transferred to the outer mold in the outer mold in the same embodiment as above and pressing and squeezing the outer mold. FIG. 4 is a cross-sectional view of a state where pressure is reduced. FIG. 8 is a cross-sectional view showing a state in which the inside of the inner mold to which the mold paper is transferred in the embodiment is increased to release the mold paper. FIG. 9 is a cross-sectional view showing a multilayer papermaking product separated from the inner mold in the embodiment.
[0009]
In FIG. 1, reference numerals 1, 2, and 3 indicate a plurality of raw material tanks, and a first raw material tank 1 contains fibers for forming a powdery material shielding layer a of a multi-layer papermaking product 4 shown in FIG. The main suspension is supplied through a feed pipe 5, and the second raw material tank 2 is provided with a powdery or granular material layer for forming an intermediate layer b or a suspension for forming a powdery / fiber mixture layer b. Is supplied through a feed pipe 6, and the third raw material tank 3 supplies a raw material suspension for forming the coating layer c through a feed pipe 7. Suspended raw materials in the first raw material tank 1 will be described later. The shielding layer a is formed with a small amount of raw material loss by using the fibers that do not pass through the water discharging hole of the mold as a main component, and the raw materials of the second raw material tank 2 and the third raw material tank 3 are shielded by the shielding layer a. In order to prevent the passage of the granular material, the granular material alone can be used, or a mixture of the granular material and the fiber can be used. Various kinds of pulp, synthetic fiber, glass fiber, carbon fiber, metal fiber, etc. are used as fiber raw materials, and moisture absorption, deodorization, radiation of magnetic and electromagnetic waves, medicinal effects, fertilizer effects, and many other functions are used as powders. , Activated carbon, rock wool, zeolite, hygroscopic polymer, various starches, drugs, fertilizers, various sludges, etc. can be arbitrarily selected.
[0010]
In the figure, reference numeral 8 denotes a mold for molding the molded paper product 4, which is formed into a shape conforming to the inside of a desired product, and has fine water drain holes on the entire surface as shown in FIGS. The mold 8 is immersed in the suspension in the raw material layers 1 to 3 by opening the opening 9 and connecting the decompression chamber 11 connected to the suction pipe 10 at the upper part. When the pressure in the inside of the suspension 11 is reduced, the liquid component in the suspension is discharged through the water extraction hole 9 and the suction pipe 10, and the suspended raw material adheres to the outer surface of the mold 8. In the second raw material tank 2, a powder layer or a mixed layer layer of powder and granules b is placed on the shielding layer a, and in the third raw material tank 3, The coating layer c is formed on the granular layer or the mixed layer layer b of the granular material and the fiber.
[0011]
In the figure, reference numeral 12 denotes a moving frame for moving the mold 8, which is movably engaged with a horizontal guide 13 provided above the plurality of raw material tanks 1 to 3, and a motor is When the feed screw 15 is rotated to one side by screwing the feed screw 15 of the moving means rotated by 14, the moving frame 12 advances from the position of the first raw material tank 1 toward the third raw material tank 3. The die 8 attached to the moving frame 12 by the elevating rod 16 is sequentially positioned on the first, second, and third raw material tanks 1, 2, and 3, but the feed screw 15 is rotated by the motor 14 to the other. Then, the moving frame 12 returns from the position of the third raw material tank 3 toward the first raw material tank 1, and positions the mold 8 on the first raw material tank 1.
[0012]
In the figure, reference numeral 17 denotes a cylinder of means for raising and lowering the mold 8, and when the mold 8 is positioned on any of the raw material tanks 1, 2, and 3 by the moving frame 12, the rod 18 is lowered. Then, the mold 8 is immersed in one of the suspensions in the raw material tanks 1, 2, and 3. After maintaining this state for a certain period of time, the rod 18 is raised to lift the mold 8 out of the suspension. To the raw material tank.
[0013]
In the figure, reference numeral 19 denotes an outer die for receiving the formed papermaking product 4 from the die 8, and the outer die 19 is formed into a shape conforming to the outer shape of the formed papermaking product 4, and the entire surface thereof is formed. As shown in FIGS. 5 to 7, a fine water-squeezing hole 20 is opened, and a decompression chamber 22 to which a suction pipe 21 is connected is provided at a lower part thereof. When the mold 8 is lifted above the third tank 3, the mold 8 is moved to the third raw material tank 3, and the mold 8 is lowered by the elevating means 17 so that the mold papermaking product 4 is accommodated in the outer mold 19. The pressure in the decompression chamber 22 is reduced by 21 to receive the mold paper product 4 from the mold 8.
[0014]
In the figure, reference numeral 23 denotes a cylinder as a means for moving the outer mold 19, a rod 24 of which is connected to a decompression chamber 22, and a shielding layer a of the granular material of the mold paper 4 by the mold 8. The outer mold 19 is made to stand by at the standby position shown by the solid line in FIG. 1 while the powder layer, the powder layer / fiber mixture layer b and the coating layer c are formed, and the shielding layer a and the powder layer Alternatively, when the mold 8 is lifted after the formation of the mixture layer b of the granular material and the fiber and the coating layer c, the mold 19 is moved onto the third raw material tank 3 by the rod 24 and the mold 9 is moved. When the mold paper product 4 is moved to the outer mold 19 due to the lowering of the mold paper product 4, the mold paper product 4 is taken out by the rod 24 to the standby position.
[0015]
In the figure, reference numeral 25 denotes an inner mold for pressing the mold paper product 4 taken out by the outer mold 19, which is formed into a shape conforming to the inner shape of the mold paper product 4, and the entire surface thereof is shown in FIGS. As shown in the drawing, a fine water-squeezing hole 26 is opened, and a decompression chamber 28 connected to a suction pipe 27 is connected to the upper part thereof. The inner die 25 is taken out by the outer die 19 to a standby position to take out the papermaking product 4. Then, the mold paper 4 is pressed by the inner mold 25 and the outer mold 19 by being pushed into the mold paper 4, thereby forcibly squeezing out moisture and the outer surface of the mold paper 4 by the outer mold 19. Molding is performed, and when this operation is completed, the inside of the inner mold 25 is depressurized by the suction pipe 27, the mold papermaking product 4 supported by the outer mold 19 is received by the inner mold 25, and the inner mold 25 is unloaded. When the compressed paper is moved to the conveyor and compressed air is sent to the suction pipe 27 and the pressure in the decompression chamber 28 is increased, the mold papermaking product 4 becomes an inner mold. It dropped to the conveyor from 5 away.
[0016]
In the figure, reference numeral 29 denotes a moving frame for moving the inner mold 25, which is movable from a position above the standby position of the outer mold 19 to a horizontal guide 31 disposed above the carry-out conveyor 30 for the papermaking product 4. When the feed screw 33 of the moving means rotated by the motor 32 is screwed into the moving frame 29, and the feed screw 33 is rotated to one side, the inner die 25 attached to the moving frame 29 by the elevating rod 34. Is moved from the standby position of the outer mold 19 onto the unloading conveyor 30, and when the feed screw 33 is rotated to the other side, it is moved from the unloading conveyor 30 to the standby position of the outer die 25.
[0017]
In the figure, reference numeral 35 denotes a cylinder of means for lifting and lowering the inner mold 25. When the inner mold 25 is moved to a standby position of the outer mold 19 by the moving frame 29, the inner mold 25 is moved by the rod 36. The mold paper 4 is lowered and pressed into the mold paper 4, and the inner mold 25 and the outer mold 19 squeeze the mold paper 4 to perform forced squeezing and forming of the outer surface of the mold paper 4. The inner mold 25 is pulled up by the rod 36 and the mold paper 4 supported by the inner mold 25 is moved onto the unloading conveyor 30. When the mold paper 4 is dropped onto the unloading conveyor 30, the outer mold 19 is moved to the standby position described above. Perform the action of returning to.
[0018]
[Experimental example 1]
LBK pulp 50%, newspaper deinked pulp 50, immersion of the mold in a fiber suspension with a slurry concentration of 0.6%, depressurization of the inside, adsorption of the raw material to the mold surface for 3 seconds, and then NBK pulp 30% The mold was transferred to a mixed suspension of powder and granules having 70% activated carbon powder and 1% slurry concentration, and the inside was depressurized to adsorb the raw material to the mold surface for 5 minutes, and then 100% NBK pulp Then, it was immersed in a fiber suspension having a slurry concentration of 0.6% to reduce the pressure inside, and the raw material was adsorbed for 8 seconds. As a result, the activated carbon and fiber mixed layer b is superimposed on the powdery and granular shielding layer a, and the coating layer c is further formed on this layer b, thereby having functions such as moisture absorption and deodorization. It was possible to obtain a stable multi-layered paper product in which the activated carbon was fixed without loss and did not separate from the product.
[0019]
【The invention's effect】
As described above, the method and apparatus for manufacturing a multilayered paper product according to the present invention comprises a method in which a shielding layer of a granular material is formed in advance on a surface of a mold by using fibers, and a granular material layer or a granular material is formed thereon. To form a mixture layer of fibers and fibers, so that products with a layer of powder and granules having functions of moisture absorption, deodorization, magnetic and electromagnetic radiation, medicinal properties, fertilizer effects, etc. are surely contained without loss of raw materials. The product has excellent uniformity and low price because it can be manufactured by means of die-casting, and it also has multiple functions by layering powder and granule layers with different functions or mixed layers of powder and granules. The product has a number of excellent features such that it is easy to obtain a product having the function, and it is also easy to easily cover the layer with a coating layer in addition to the layer having a function to protect the layer.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing one embodiment of an apparatus for manufacturing a multilayer papermaking product according to the present invention.
FIG. 2 is a cross-sectional view showing a state in which the inside of the mold is depressurized in the suspension of the first tank of the embodiment and a shielding layer of the granular material is formed on the outside of the mold.
FIG. 3 shows a state in which the inside of the mold is depressurized in the suspension in the second tank of the above embodiment, and a powder layer or a mixed layer of powder and fibers is formed on the shielding layer. It is sectional drawing.
FIG. 4 shows a state in which the inside of the mold is depressurized in the suspension of the third tank in the above embodiment, and a coating layer is formed on the powder layer or the mixed layer of powder and fiber. It is sectional drawing.
FIG. 5: An outer mold is fitted to a mold papermaking product in which a shielding layer, a granule material layer or a mixed layer of a granule material and a fiber, and a coating layer are provided in the same example, and the inside of the mold is depressurized to form a mold. It is sectional drawing of the state which transfers a product to an outer type | mold.
FIG. 6 is a cross-sectional view showing a state in which the mold paper is transferred to an outer mold in the embodiment.
FIG. 7 is a view showing the inside of the mold paper product transferred to the outer mold in the above embodiment, which is squeezed by the outer mold and the inner mold to squeeze water and form the outer surface, and to transfer the mold paper product to the inner mold. It is sectional drawing of the state which decompresses.
FIG. 8 is a cross-sectional view showing a state where the inside of the inner mold to which the mold paper is transferred in the embodiment is increased in order to release the mold paper.
FIG. 9 is a cross-sectional view showing a multilayer papermaking product separated from the inner mold in the embodiment.
[Explanation of symbols]
1, 2, 3 Raw material tank 8 Mold for molding 15 Mold moving means 17 Mold lifting / lowering means 10 Decompression means in mold 22 Outer mold for receiving product 25 Inner mold for squeezing product