JP5884136B2 - Method for producing filter molded body - Google Patents

Method for producing filter molded body Download PDF

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JP5884136B2
JP5884136B2 JP2012063133A JP2012063133A JP5884136B2 JP 5884136 B2 JP5884136 B2 JP 5884136B2 JP 2012063133 A JP2012063133 A JP 2012063133A JP 2012063133 A JP2012063133 A JP 2012063133A JP 5884136 B2 JP5884136 B2 JP 5884136B2
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光裕 弓削
光裕 弓削
啓二 堺
啓二 堺
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Mitsuboshi Belting Ltd
Osaka Gas Chemicals Co Ltd
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Osaka Gas Chemicals Co Ltd
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Description

本発明は、上水、中水、下水等の水処理に用いられるフィルタ成形体の製造方法に関する。   The present invention relates to a method for producing a filter molded body used for water treatment of clean water, middle water, sewage and the like.

例えば一般家庭等において、水道の蛇口に直接取り付けたり、蛇口に接続して据え置きする浄水器に用いられるフィルタ成形体には、粉末状または粒状とした活性炭等の浄化成分をバインダとなる固形ポリマと混合攪拌し、混合攪拌した混合原料を型内に充填して、加熱したのち加圧して所定の形状に成形し、こののち冷却固化して離型することにより製造されているものがある(例えば、特許文献1参照)。特許文献1に記載されたものでは、バインダに高分子量で低メルトインデックスのポリマを用いている。   For example, in general households, filter molded bodies used in water purifiers that are directly attached to a water faucet or connected to the faucet and placed on a water purifier include a solid polymer serving as a binder with a purification component such as powdered or granular activated carbon. Some are manufactured by mixing and stirring, mixing and stirring the mixed raw material into a mold, heating and pressurizing to form a predetermined shape, then solidifying by cooling and releasing (for example, , See Patent Document 1). In the one described in Patent Document 1, a polymer having a high molecular weight and a low melt index is used as a binder.

上述した製造方法で製造されたフィルタ成形体は均質な多孔質とされ、活性炭等の浄化成分を均一に分散させることができ、処理する水を全体の領域に満遍なく通して効率よく浄化成分と接触させ、水の処理流量を十分に確保して、水中の塩素や有機物等を有効に除去できる優れた濾過性能を有する。なお、この種のフィルタ成形体は、外面を不織布等のシート状の被覆部材で覆って浄水器に用いられ、この被覆部材でごみ等の比較的大きい異物を一次濾過する。   The filter molded body manufactured by the above-described manufacturing method has a uniform porous structure, and can uniformly disperse purification components such as activated carbon, and efficiently pass the water to be treated throughout the entire area to efficiently contact the purification components. And having an excellent filtration performance capable of effectively removing chlorine and organic substances in the water while ensuring a sufficient water treatment flow rate. This type of filter molded body is used in a water purifier with its outer surface covered with a sheet-like covering member such as a nonwoven fabric, and relatively large foreign matters such as dust are primarily filtered with this covering member.

特開2001−187305号公報JP 2001-187305 A

近年、家庭用等の水道の蛇口のデザインは多様化しており、直線形状の蛇口だけでなく、湾曲形状の蛇口も多く見られるようになっている。   In recent years, the design of faucets for household use has been diversified, and not only straight-shaped faucets but also curved-shaped faucets can be seen.

特許文献1に記載された方法で製造されたフィルタ成形体は優れた濾過性能を有するが、例えば、上述した湾曲形状の蛇口内部に挿入するタイプの浄水器に用いる場合は、フィルタ成形体を長手方向に湾曲した湾曲形状とする必要がある。   The filter molded body produced by the method described in Patent Document 1 has excellent filtration performance. For example, when used in a water purifier of the type inserted into the curved faucet described above, the filter molded body is elongated. It is necessary to have a curved shape curved in the direction.

しかしながら、このような湾曲形状のフィルタ成形体を特許文献1に記載された方法で製造しようとすると、混合原料を充填して加熱、加圧するためのキャビティが湾曲した型の構造が複雑になり、型費が高価になるとともに、加熱、加圧時の型の占有時間が長い(1.5時間程度)ので、フィルタ成形体を量産するには多数の高価な型を必要とし、製造コストが高くなる問題がある。また、キャビティが湾曲した型では、各部位での加圧圧力のかかり方にばらつきが生じやすく、多孔質のフィルタ成形体の空隙の分布や浄化成分の分散が不均一となって、優れた濾過性能を確保できなくなる問題もある。さらに、湾曲形状のフィルタ成形体は、外面をシート状の被覆部材で被覆することが難しく、被覆できたとしても、被覆部材が外面にうまく沿わず、被覆部材にシワ等が生じて外観が悪くなる問題もある。   However, if such a curved filter molded body is to be manufactured by the method described in Patent Document 1, the structure of a mold having a curved cavity for filling and heating and pressurizing the mixed raw material becomes complicated, The mold cost is high and the occupation time of the mold during heating and pressurization is long (about 1.5 hours). Therefore, many expensive molds are required for mass production of filter molded bodies, and the production cost is high. There is a problem. In addition, the mold with curved cavities tends to vary in how pressure is applied at each part, and the distribution of pores in the porous filter molded product and the dispersion of purification components are uneven, resulting in excellent filtration. There is also a problem that performance cannot be secured. Furthermore, it is difficult to coat the outer surface of the curved filter molded body with a sheet-like covering member, and even if it can be covered, the covering member does not follow the outer surface well, and the covering member is wrinkled and the appearance is poor. There is also a problem.

そこで、本発明の課題は、優れた濾過性能を有する湾曲形状のフィルタ成形体を、安価な製造コストで製造できるようにすることである。   Then, the subject of this invention is enabling it to manufacture the curve-shaped filter molded object which has the outstanding filtration performance at an inexpensive manufacturing cost.

上記の課題を解決するために、本発明は、バインダとしてのポリマに、水を浄化するための活性炭からなる浄化成分を分散させた多孔質とされ、長手方向に湾曲した水処理用のフィルタ成形体の製造方法において、前記バインダとなる固形ポリマと、この固形ポリマに対して分散されるようにした前記浄化成分との原料を混合して攪拌する混合攪拌工程と、混合攪拌した混合原料を直線状のキャビティを有する型内に充填する充填工程と、前記型内に充填した混合原料を加熱したのち加圧して直線形状に成形する一次成形工程と、一次成形工程で成形された一次成形体を冷却固化して離型する冷却固化工程と、離型した前記一次成形体を再加熱して軟化させる再加熱工程と、軟化させた前記一次成形体を、対向する湾曲面を有する一対の曲げ型間で挟圧して長手方向に湾曲させる湾曲曲げ工程と、湾曲させた成形体を前記曲げ型間で冷却硬化させて湾曲したフィルタ成形体とする仕上工程とからなり、前記充填工程で前記型内の直線状のキャビティの中心に直線状の中子を設け、前記一次成形体に長手方向に延びる中心孔を形成するようにしたフィルタ成形体の製造方法を採用した。 In order to solve the above-described problems, the present invention provides a filter for water treatment that is made of a porous polymer in which a purification component made of activated carbon for purifying water is dispersed in a polymer as a binder, and is curved in the longitudinal direction. In the manufacturing method of the body, a mixing and stirring step of mixing and stirring the raw material of the solid polymer to be the binder and the purification component dispersed with respect to the solid polymer, and mixing and stirring the mixed raw material in a straight line A filling process for filling a mold having a cavity, a primary molding process for heating and pressurizing the mixed raw material filled in the mold to form a linear shape, and a primary molded body molded in the primary molding process. A cooling and solidifying step of cooling and solidifying and releasing, a reheating step of reheating and softening the released primary molded body, and a pair of bends having curved surfaces facing each other. A curved bending step to bend longitudinally nipped between, Ri Do and a finishing step a is curved shaped body is cooled to cure between the bending tool and filter molded body is curved, the mold in the filling process A filter molded body manufacturing method was adopted in which a linear core was provided at the center of the linear cavity, and a central hole extending in the longitudinal direction was formed in the primary molded body .

すなわち、バインダとなる固形ポリマと浄化成分を混合攪拌した混合原料を、直線状のキャビティを有する型内で加熱、加圧したのち冷却固化して、まず直線形状の一次成形体を得るようにし、得られた一次成形体を再加熱して軟化させたものを曲げ型間で挟圧して長手方向に湾曲させ、これを冷却硬化させて湾曲したフィルタ成形体とすることにより、キャビティが湾曲した高価な型を不要とするとともに、直線状のキャビティを有する型内で混合原料を均一に加圧して、優れた濾過性能を有する湾曲形状のフィルタ成形体を、安価な製造コストで製造できるようにした。   That is, the mixed raw material obtained by mixing and stirring the solid polymer as a binder and the purification component is heated and pressurized in a mold having a linear cavity, and then cooled and solidified, so as to obtain a linear primary molded body first, The obtained primary molded body, which has been softened by reheating, is clamped between bending dies to bend in the longitudinal direction, and this is cooled and cured to obtain a curved filter molded body, resulting in an expensive cavity. In addition, the mixed raw material is uniformly pressurized in a mold having a linear cavity so that a curved filter molded body having excellent filtration performance can be manufactured at a low manufacturing cost. .

なお、前記一対の曲げ型は、一次成形工程で使用する型に較べると、簡易的な形状で型費も安価なものである。また、多孔質のフィルタ成形体における空隙の分布や浄化成分の分散は、加熱、加圧して直線形状に成形する一次成形工程で決まり、湾曲曲げ工程ではほとんど変化しないので、一次成形体の段階で、空隙の分布や浄化成分の分散が均一となるようにし、優れた濾過性能を持たせることができる。   Note that the pair of bending dies has a simple shape and a low die cost as compared with the dies used in the primary molding process. In addition, the distribution of voids and the dispersion of purification components in the porous filter molded body are determined by the primary molding process in which the filter is molded into a linear shape by heating and pressurizing, and hardly changes in the curved bending process. In addition, it is possible to make the distribution of the voids and the dispersion of the purification components uniform, and to have excellent filtration performance.

前記一次成形体を長尺のものとし、この長尺の一次成形体を所定長さに切断して、後の再加熱工程、湾曲曲げ工程および仕上工程に供給し、1本の一次成形体から複数のフィルタ成形体を得るようにすることもできる。   The primary molded body is a long one, the long primary molded body is cut into a predetermined length, and supplied to a subsequent reheating step, a bending and bending step, and a finishing step. It is also possible to obtain a plurality of filter molded bodies.

前記バインダとしてのポリマを、メルトインデックスが1.1〜2.3g/10min(ASTM D1238、190℃、15kgLoad)の低メルトインデックスのものとすることにより、一次成形工程での加熱、加圧時における溶融したポリマの流動性をある程度確保して、少ない配合量で浄化成分を固定できるとともに、ポリマが活性炭等の浄化成分の凹凸や細孔に流れ込むのを防止して、優れた濾過性能を確実に確保することができる。なお、メルトインデックスは、ポリマ溶融時の流動性を表す尺度であり、この値が小さいほど流動性が低いことを示す。   By using a polymer as the binder having a low melt index with a melt index of 1.1 to 2.3 g / 10 min (ASTM D1238, 190 ° C., 15 kg Load), heating and pressurization during the primary molding process are performed. While ensuring the fluidity of the molten polymer to some extent, the purification component can be fixed with a small amount, and the polymer is prevented from flowing into the irregularities and pores of the purification component such as activated carbon, ensuring excellent filtration performance Can be secured. The melt index is a scale representing the fluidity at the time of polymer melting, and the smaller this value, the lower the fluidity.

前記混合攪拌工程における前記固形ポリマの配合率は、5〜50質量%、好ましくは7〜20質量%とするとよい。配合率が5質量%未満では、湾曲曲げ工程で一次成形体を湾曲させるときに、外面にひび割れが発生する恐れがあり、配合率が50質量%を超えると、浄化成分の表面がポリマで覆われる割合が大きくなって、濾過性能が低下するからである。   The blending ratio of the solid polymer in the mixing and stirring step is 5 to 50% by mass, preferably 7 to 20% by mass. If the blending ratio is less than 5% by mass, cracks may occur on the outer surface when the primary molded body is bent in the bending process. If the blending ratio exceeds 50% by mass, the surface of the purification component is covered with a polymer. This is because the filtration rate increases and the filtration performance decreases.

前記冷却固化工程で冷却固化された一次成形体の密度は0.35〜0.65g/cmとするとよい。密度が0.35g/cm未満では、脆くなって後の湾曲曲げ工程で折れる恐れがあり、0.65g/cmを超えると、多孔質の空隙が少なくなって処理水の流量が低下するからである。 The density of the primary molded body cooled and solidified in the cooling and solidification step is preferably 0.35 to 0.65 g / cm 3 . If the density is less than 0.35 g / cm 3, it may become brittle and break in the subsequent bending process, and if it exceeds 0.65 g / cm 3 , the porous voids decrease and the flow rate of treated water decreases. Because.

前記湾曲曲げ工程における前記曲げ型間での挟圧圧力は、3〜10MPaとするとよい。なお、3〜10MPaの挟圧圧力は、一対の曲げ型を上下一対のものとすれば、上型の重量程度で得られ、別途の挟圧手段を不要とすることができる。   The clamping pressure between the bending dies in the bending process may be 3 to 10 MPa. In addition, if the pair of bending dies are a pair of upper and lower pairs, the clamping pressure of 3 to 10 MPa can be obtained by the weight of the upper mold, and a separate clamping means can be dispensed with.

課題を解決するための、前述したフィルタ成形体の製造方法において、前記充填工程で前記型内の直線状のキャビティの中心に直線状の中子を設け、前記一次成形体に長手方向に延びる中心孔を形成することにより、フィルタ成形体を筒状のものとし、フィルタ成形体の外側と中心孔との間で水を濾過することができる。 In the method for manufacturing a filter molded body described above for solving the problem , a linear core is provided at the center of a linear cavity in the mold in the filling step, and a center extending in a longitudinal direction in the primary molded body By forming the holes, the filter molded body can be cylindrical, and water can be filtered between the outside of the filter molded body and the center hole.

前記一次成形体の中心孔は、長手方向の両端側に貫通するものとすることができる。   The central hole of the primary molded body may penetrate both end sides in the longitudinal direction.

前記一次成形体の中心孔は、長手方向の一端側が閉塞されたものとすることもできる。   The central hole of the primary molded body may be closed at one end in the longitudinal direction.

前記中心孔の一端側を閉塞する閉塞部の長手方向の長さ寸法は、前記中心孔がある部位の前記一次成形体の肉厚寸法の0.5〜10倍の範囲とするとよい。フィルタ成形体の外側と中心孔との間で水を濾過する場合に、閉塞部の長さ寸法が肉厚寸法の0.5倍未満では、閉塞部での濾過性能が不足する恐れがあり、10倍を超えると、中心孔の容積が狭くなって、必要な流量を確保できなくなる恐れがある。   The longitudinal length of the closing portion that closes one end of the center hole is preferably in the range of 0.5 to 10 times the wall thickness of the primary molded body at the site where the center hole is located. When water is filtered between the outside of the filter molded body and the center hole, if the length dimension of the closed portion is less than 0.5 times the wall thickness, the filtration performance at the closed portion may be insufficient. If it exceeds 10 times, the volume of the center hole becomes narrow, and there is a possibility that a necessary flow rate cannot be secured.

上記の課題を解決するために、本発明は、バインダとしてのポリマに、水を浄化するための活性炭からなる浄化成分を分散させた多孔質とされ、長手方向に湾曲した水処理用のフィルタ成形体の製造方法において、前記バインダとなる固形ポリマと、この固形ポリマに対して分散されるようにした前記浄化成分との原料を混合して攪拌する混合攪拌工程と、混合攪拌した混合原料を直線状のキャビティを有する型内に充填する充填工程と、前記型内に充填した混合原料を加熱したのち加圧して直線形状に成形する一次成形工程と、一次成形工程で成形された一次成形体を冷却固化して離型する冷却固化工程と、離型した前記一次成形体を再加熱して軟化させる再加熱工程と、軟化させた前記一次成形体を、対向する湾曲面を有する一対の曲げ型間で挟圧して長手方向に湾曲させる湾曲曲げ工程と、湾曲させた成形体を前記曲げ型間で冷却硬化させて湾曲したフィルタ成形体とする仕上工程とからなり、前記冷却固化工程と前記再加熱工程との間に、前記一次成形体の外面をシート状の被覆部材で被覆する被覆工程を設けたフィルタ成形体の製造方法を採用した。
前記冷却固化工程と前記再加熱工程との間に、前記一次成形体の外面をシート状の被覆部材で被覆する被覆工程を設けることにより、湾曲したフィルタ成形体の外面を、簡単に、かつ、シワ等がない良好な外観を呈するように被覆部材で被覆することができる。
In order to solve the above-described problems, the present invention provides a filter for water treatment that is made of a porous polymer in which a purification component made of activated carbon for purifying water is dispersed in a polymer as a binder, and is curved in the longitudinal direction. In the manufacturing method of the body, a mixing and stirring step of mixing and stirring the raw material of the solid polymer to be the binder and the purification component dispersed with respect to the solid polymer, and mixing and stirring the mixed raw material in a straight line A filling process for filling a mold having a cavity, a primary molding process for heating and pressurizing the mixed raw material filled in the mold to form a linear shape, and a primary molded body molded in the primary molding process. A cooling and solidifying step of cooling and solidifying and releasing, a reheating step of reheating and softening the released primary molded body, and a pair of bends having curved surfaces facing each other. Wherein the curved bending step to bend longitudinally nipped, Ri Do and a finishing step a is curved shaped body is cooled to cure between the bending tool and filter moldings curved, and the cooling and solidification step between A method for manufacturing a filter molded body provided with a coating step of coating the outer surface of the primary molded body with a sheet-shaped coating member between the reheating step was adopted.
By providing a coating step of coating the outer surface of the primary molded body with a sheet-like coating member between the cooling and solidifying step and the reheating step, the outer surface of the curved filter molded body can be easily and It can coat | cover with a coating | coated member so that the favorable external appearance without a wrinkle etc. may be exhibited.

本発明に係るフィルタ成形体の製造方法は、バインダとなる固形ポリマと浄化成分を混合攪拌した混合原料を、直線状のキャビティを有する型内で加熱、加圧したのち冷却固化して、まず直線形状の一次成形体を得るようにし、得られた一次成形体を再加熱して軟化させたものを曲げ型間で挟圧して長手方向に湾曲させ、これを冷却硬化させて湾曲したフィルタ成形体とするようにしたので、優れた濾過性能を有する湾曲形状のフィルタ成形体を、安価な製造コストで製造することができる。   In the method for producing a filter molded body according to the present invention, a mixed raw material obtained by mixing and stirring a solid polymer as a binder and a purification component is heated and pressurized in a mold having a linear cavity, and then cooled and solidified, and then first linearly Filter shaped body in which a primary molded body having a shape is obtained, and the obtained primary molded body is reheated and softened to bend between the bending dies and curved in the longitudinal direction, and then cooled and cured. Therefore, a curved filter molded body having excellent filtration performance can be manufactured at a low manufacturing cost.

本発明に係る製造方法で製造した第1の実施形態のフィルタ成形体を示す縦断面図The longitudinal cross-sectional view which shows the filter molded object of 1st Embodiment manufactured with the manufacturing method which concerns on this invention. 本発明に係るフィルタ成形体の製造方法の工程を示すフローチャートThe flowchart which shows the process of the manufacturing method of the filter molded object which concerns on this invention. (a)、(b)は、図1のフィルタ成形体用の混合原料を充填工程で型内に充填する過程を示す縦断面図(A), (b) is a longitudinal cross-sectional view which shows the process in which the mixed raw material for filter molded bodies of FIG. 1 is filled in the mold in the filling step. 図3の充填工程で充填された混合原料を一次成形工程で加熱したのち加圧する状態を示す縦断面図The longitudinal cross-sectional view which shows the state which pressurizes, after heating the mixed raw material filled at the filling process of FIG. 3 at a primary formation process. (a)は図4の一次成形工程で成形された一次成形体を冷却固化工程で冷却固化して離型した状態を示す縦断面図、(b)は(a)の一次成形体を被覆工程で被覆した状態を示す縦断面図(A) is a longitudinal cross-sectional view showing a state in which the primary molded body formed in the primary forming step of FIG. 4 is cooled and solidified in the cooling and solidifying step and released, and (b) is a step of covering the primary molded body in (a). Longitudinal section showing the state covered with 図2の湾曲曲げ工程で用いる曲げ型を示す分解斜視図FIG. 2 is an exploded perspective view showing a bending die used in the bending process of FIG. (a)、(b)は、図6の曲げ型を用いて図5(b)の一次成形体を湾曲させる過程を示す縦断面図(A), (b) is a longitudinal cross-sectional view which shows the process of curving the primary molded object of FIG.5 (b) using the bending die of FIG. 実施例における初期濾過流量の測定結果を示すグラフThe graph which shows the measurement result of the initial stage filtration flow rate in an Example 実施例における各流量レベルでの塩素除去率の測定結果を示すグラフThe graph which shows the measurement result of the chlorine removal rate in each flow level in an Example 図1のフィルタ成形体を用いた浄水器を湾曲形状の蛇口内部に装着した例を示す切欠き縦断面図Cutaway longitudinal sectional view showing an example in which a water purifier using the filter molded body of FIG. 1 is mounted inside a curved faucet 本発明に係る製造方法で製造した第2の実施形態のフィルタ成形体を示す縦断面図The longitudinal cross-sectional view which shows the filter molded object of 2nd Embodiment manufactured with the manufacturing method which concerns on this invention. (a)、(b)は、図11のフィルタ成形体用の混合原料を充填工程で型内に充填する過程を示す縦断面図(A), (b) is a longitudinal cross-sectional view which shows the process in which the mixed raw material for filter molded objects of FIG. 11 is filled in a mold by a filling process. 図12の充填工程で充填された混合原料を一次成形工程で加熱したのち加圧する状態を示す縦断面図The longitudinal cross-sectional view which shows the state pressurized after heating the mixed raw material filled at the filling process of FIG. 12 at a primary molding process. (a)は図13の一次成形工程で成形された一次成形体を冷却固化工程で冷却固化して離型した状態を示す縦断面図、(b)は(a)の一次成形体を被覆工程で被覆した状態を示す縦断面図(A) is a longitudinal cross-sectional view showing a state in which the primary molded body molded in the primary molding step of FIG. 13 is cooled and solidified in the cooling and solidifying step and released, and (b) is a step of covering the primary molded body in (a). Longitudinal section showing the state covered with 図11のフィルタ成形体を用いた浄水器を湾曲形状の蛇口内部に装着した例を示す切欠き縦断面図Cutout longitudinal sectional view showing an example in which a water purifier using the filter molded body of FIG. 11 is mounted inside a curved faucet

以下、図面に基づき、本発明の実施形態を説明する。図1は、本発明に係る製造方法で製造した第1の実施形態のフィルタ成形体1を示す。このフィルタ成形体1は、湾曲形状の蛇口内部に挿入するタイプの浄水器に用いられるものであり、中心に両端側へ貫通する中心孔1aを有し、長手方向に湾曲した円筒状で、外周面がシート状の被覆部材2で被覆されている。フィルタ成形体1の一端側は別体のキャップ部材等で閉塞され、図中に矢印で示すように、処理される水は外周側から湾曲形状のフィルタ成形体1に流入し、処理された水は中心孔1aから他端側に流出する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a filter molded body 1 according to a first embodiment manufactured by a manufacturing method according to the present invention. This filter molded body 1 is used for a water purifier of the type inserted into a curved faucet, has a center hole 1a penetrating to both ends at the center, is a cylindrical shape curved in the longitudinal direction, The surface is covered with a sheet-like covering member 2. One end side of the filter molded body 1 is closed with a separate cap member or the like, and as shown by an arrow in the figure, the water to be treated flows into the curved filter molded body 1 from the outer peripheral side, and the treated water is treated. Flows out from the center hole 1a to the other end.

前記フィルタ成形体1は、バインダのポリマとしての平均分子量が20万〜500万の高分子量で低メルトインデックスの超高分子量ポリエチレンに、60以上200以下メッシュパスの粒状活性炭と200以下メッシュパスの粉末状活性炭を2対1の割合で混合したものを浄化成分として分散させた多孔質のものである。浄化成分としての粒状および粉末状活性炭は、多孔質の空隙に露出するように固着されており、空隙を通る処理水に含まれる塩素や有機物等を濾過する。   The filter molded body 1 is made of a high molecular weight, low melt index ultrahigh molecular weight polyethylene having an average molecular weight of 200,000 to 5,000,000 as a binder polymer, granular activated carbon of 60 to 200 mesh pass, and powder of 200 or less mesh pass. It is a porous material in which a mixture of granular activated carbon in a ratio of 2 to 1 is dispersed as a purification component. Granular and powdered activated carbon as a purification component is fixed so as to be exposed in a porous void, and filters chlorine, organic matter, and the like contained in treated water passing through the void.

前記シート状の被覆部材2は、坪量が15〜60g/mのポリエチレン系繊維の不織布で形成されており、処理水中のごみ等の比較的大きい異物を一次濾過し、多孔質のフィルタ成形体1の空隙が目詰まりするのを防止する役割もする。被覆部材2は、ポリプロピレン系繊維、ポリビニルアルコール系繊維、ポリアクリロニトリル系繊維、ポリ塩化ビニル系繊維等の他の合成繊維の不織布で形成することもでき、不織布は破損等で孔が開く恐れもないので、一次濾過機能を安定して維持することができる。なお、被覆部材2として合成繊維等の織布を用いることもできる。 The sheet-like covering member 2 is formed of a non-woven fabric of polyethylene fiber having a basis weight of 15 to 60 g / m 2 , and primarily filters relatively large foreign matters such as dust in the treated water to form a porous filter. It also serves to prevent the voids in the body 1 from being clogged. The covering member 2 can also be formed of a nonwoven fabric of other synthetic fibers such as a polypropylene fiber, a polyvinyl alcohol fiber, a polyacrylonitrile fiber, a polyvinyl chloride fiber, and the nonwoven fabric has no fear of opening a hole due to damage or the like. Therefore, the primary filtration function can be stably maintained. In addition, a woven fabric such as a synthetic fiber can be used as the covering member 2.

図2は、本発明に係るフィルタ成形体の製造方法の工程を示すフローチャートである。まず、混合攪拌工程では、バインダとなる粒状のポリマをぶどうの房状に結合したメルトインデックスが1.5g/10min(ASTM D1238、190℃、15kgLoad)の超高分子量ポリエチレン(Ticona Gmbh社製、HostalenGUR2105)の固形ポリマと、前記粒状および粉末状活性炭とを原料として、これらの原料を固形ポリマの配合率が15質量%となるように混合し、浄化成分としての活性炭を均一に分散させるように攪拌して混合原料3を用意する。以下は、図1のフィルタ成形体1を製造する場合について説明する。   FIG. 2 is a flowchart showing the steps of the method for producing a filter molded body according to the present invention. First, in the mixing and stirring step, an ultrahigh molecular weight polyethylene (Hostona Gmbh, Hostalen GUR2105) having a melt index of 1.5 g / 10 min (ASTM D1238, 190 ° C., 15 kg Load) in which a granular polymer as a binder is combined in a bunch of grapes. ) And the granular and powdered activated carbons as raw materials, these raw materials are mixed so that the blending ratio of the solid polymer is 15% by mass, and the activated carbon as a purification component is stirred to be uniformly dispersed. Then, the mixed raw material 3 is prepared. Below, the case where the filter molded object 1 of FIG. 1 is manufactured is demonstrated.

つぎの充填工程では、図3(a)に示すように、縦向き直線状で円形断面のキャビティを有し、後述する一次成形体4の中心孔4aを形成する中子11を中心に設けた型10に、上方から漏斗14の先端をキャビティの底まで挿入し、混合原料3を漏斗14内に投入する。こののち、図3(b)に示すように、漏斗14が上方へ抜き取られ、混合原料3が型10内に充填される。中子11は着脱可能とされた底型12に一体に立設され、投入された混合原料3から突出するように高く形成されている。なお、混合原料3は漏斗14を用いずに型10内に充填してもよいが、このように漏斗14の先端をキャビティに深く挿入して抜き取ることにより、漏斗14の抜き取り時の攪拌効果によって、充填された混合原料3における浄化成分の分散状態を良好に確保することができる。   In the next filling step, as shown in FIG. 3 (a), a longitudinally straight cavity with a circular cross section is provided, and a core 11 that forms a center hole 4a of the primary molded body 4 described later is provided at the center. The tip of the funnel 14 is inserted into the mold 10 from above to the bottom of the cavity, and the mixed raw material 3 is put into the funnel 14. Thereafter, as shown in FIG. 3B, the funnel 14 is extracted upward, and the mixed raw material 3 is filled in the mold 10. The core 11 is erected integrally with a bottom mold 12 that is detachable, and is formed so as to protrude from the mixed raw material 3 that has been charged. The mixed raw material 3 may be filled in the mold 10 without using the funnel 14, but by thus inserting the tip of the funnel 14 deeply into the cavity and extracting it, the stirring effect at the time of extracting the funnel 14 can be used. The dispersion state of the purification component in the filled mixed raw material 3 can be ensured satisfactorily.

つぎの一次成形工程では、型10内に充填した混合原料3を200℃で1時間加熱したのち、図4に示すように、上型13を上方からキャビティに挿入し、加熱された混合原料3を加圧して直線形状に成形する。上型13には、混合原料3から突出する中子11が嵌まり込む孔13aが設けられている。   In the next primary molding step, the mixed raw material 3 filled in the mold 10 is heated at 200 ° C. for 1 hour, and then the upper mold 13 is inserted into the cavity from above as shown in FIG. To form a linear shape. The upper mold 13 is provided with a hole 13 a into which the core 11 protruding from the mixed raw material 3 is fitted.

つぎの冷却固化工程では、直線形状に成形された一次成形体4を冷却固化して離型する。この離型の際には、図示は省略するが、中子11を立設した底型12が先に抜き取られ、上型13の押し込みによって、直線形状の一次成形体4が下方へ押し出される。   In the next cooling and solidifying step, the primary molded body 4 formed into a linear shape is cooled and solidified and released. When the mold is released, although not shown, the bottom mold 12 with the core 11 standing is pulled out first, and when the upper mold 13 is pushed in, the linear primary molded body 4 is pushed downward.

図5(a)は、前記離型された一次成形体4を示す。この一次成形体4は中心に両端側へ貫通する中心孔4aが形成され、一次成形工程での加圧力の調整で、密度が0.50g/cmとされた多孔質とされ、多孔質の空隙に露出するように浄化成分としての粒状および粉末状活性炭が固着されている。 FIG. 5A shows the released primary molded body 4. This primary molded body 4 is formed with a central hole 4a penetrating to both ends at the center, and is made porous with a density of 0.50 g / cm 3 by adjusting the applied pressure in the primary molding step. Granular and powdered activated carbon as a purification component is fixed so as to be exposed in the gap.

つぎの被覆工程では、図5(b)に示すように、一次成形体4の外周面をシート状の被覆部材2としてのポリエチレン系繊維の不織布で被覆する。この被覆は、一次成形体4の外周面に巻き付けた不織布の端部同士を熱融着することにより行われる。一次成形体4への被覆部材3の巻き付けは手作業で行っても良いし、専用の巻き付け装置を用いてもよく、直線形状の一次成形体4の外周面を被覆するように被覆部材2を容易に巻き付けることができ、シワ等が生じる外観不良となることもない。また、熱融着もアイロン等の100℃程度の加熱体を直線形状の一次成形体4に沿わせて容易に行うことができる。   In the next coating step, as shown in FIG. 5 (b), the outer peripheral surface of the primary molded body 4 is coated with a non-woven fabric of polyethylene fibers as the sheet-shaped coating member 2. This coating is performed by heat-sealing the ends of the nonwoven fabric wound around the outer peripheral surface of the primary molded body 4. The covering member 3 may be wound around the primary molded body 4 manually or a dedicated winding device may be used, and the covering member 2 is coated so as to cover the outer peripheral surface of the linear primary molded body 4. It can be easily wound, and there is no appearance defect that causes wrinkles. Also, heat fusion can be easily performed by placing a heating body of about 100 ° C. such as an iron along the linear shaped primary molded body 4.

こののち、再加熱工程では、被覆部材2で被覆した一次成形体4を、140〜180℃程度の熱風オーブン等で再加熱して軟化させ、湾曲曲げ工程では、軟化させた一次成形体4を、上下一対の曲げ型15を用いて長手方向に湾曲させる。   After that, in the reheating step, the primary molded body 4 covered with the covering member 2 is reheated and softened in a hot air oven or the like at about 140 to 180 ° C., and in the bending bending process, the softened primary molded body 4 is softened. Then, it is bent in the longitudinal direction using a pair of upper and lower bending dies 15.

図6は、前記上下一対の曲げ型15を示す。この曲げ型15は、下に凸に湾曲した円弧断面の型溝16aを有する上型16と、下に凹に湾曲した円弧断面の型溝17aを有する下型17と、上下から合わされる上型16と下型17の両側から型溝16a、17aの両端部に挿入され、湾曲する一次成形体4の端面を押さえる一対の端面押さえ具18とからなる。上型16にはガイド孔16bが、下型17にはガイドピン17bがそれぞれ2箇所に設けられており、これらの案内によって上型16が下型17に向かって下降する。また、各端面押さえ具18には、上型16と下型17の端面に係止され、挿入位置を位置決めする鍔18aが設けられている。   FIG. 6 shows the pair of upper and lower bending dies 15. The bending die 15 includes an upper die 16 having an arc-shaped cross-sectional groove 16a curved downward and a lower die 17 having an arc-shaped cross-sectional groove 17a curved concavely, and an upper die combined from above and below. 16 and a lower die 17 are inserted into both end portions of the mold grooves 16a and 17a from both sides, and includes a pair of end surface pressing members 18 that press the end surface of the curved primary molded body 4. The upper die 16 is provided with guide holes 16b and the lower die 17 is provided with two guide pins 17b. The upper die 16 is lowered toward the lower die 17 by these guides. In addition, each end surface pressing tool 18 is provided with a hook 18a that is locked to the end surfaces of the upper mold 16 and the lower mold 17 and positions the insertion position.

図7(a)、(b)は、前記曲げ型15を用いて一次成形体4を湾曲させる過程を示す。図7(a)に示すように、再加熱された一次成形体4は下型17の型溝17a内にセットされ、その上に上型16が型溝16aの位置を合わせて載せられる。こののち、図7(b)に示すように、上型16がガイドピン17bで案内されて下降するとともに、一対の端面押さえ具18が左右両側から型溝16a、17aの両端部に挿入され、一次成形体4が上下の溝16a、17aに沿って湾曲するように曲げられる。このとき、再加熱された一次成形体4は軟化しているので、3〜10MPa程度の圧力で湾曲変形し、上型16の自重のみで湾曲させることができる。また、外周面を被覆する被覆部材2も、シワ等がない良好な外観を保って一次成形体4と一緒に湾曲する。   7A and 7B show a process of bending the primary molded body 4 using the bending die 15. As shown in FIG. 7A, the reheated primary molded body 4 is set in the mold groove 17a of the lower mold 17, and the upper mold 16 is placed thereon with the position of the mold groove 16a aligned. After that, as shown in FIG. 7 (b), the upper die 16 is guided and lowered by the guide pins 17b, and a pair of end surface pressing tools 18 are inserted into both end portions of the die grooves 16a and 17a from both the left and right sides. The primary molded body 4 is bent so as to be curved along the upper and lower grooves 16a and 17a. At this time, since the reheated primary molded body 4 is softened, it can be bent and deformed by a pressure of about 3 to 10 MPa, and can be bent only by its own weight of the upper die 16. The covering member 2 covering the outer peripheral surface is also curved together with the primary molded body 4 while maintaining a good appearance without wrinkles.

最後の仕上げ工程では、図7(b)に示した状態で30分〜1時間程度放置して、湾曲した成形体を冷却硬化させ、曲げ型15から取り出すことにより、図1に示した両端側へ貫通する中心孔1aを有するフィルタ成形体1が製造される。   In the final finishing step, the both ends shown in FIG. 1 are left by leaving the molded body curved for about 30 minutes to 1 hour in the state shown in FIG. A filter molded body 1 having a central hole 1a penetrating into the center is manufactured.

実施例として、図1に示した湾曲形状のフィルタ成形体を用意した。また、比較例として、図5(b)に示したように、直線形状のままのフィルタ成形体も用意した。これらの実施例と比較例のフィルタ成形体について、家庭用浄水器試験方法(JIS S3201:2010)に準じて、初期濾過流量と、各流量レベルでの遊離残留塩素の除去率を測定した。なお、動水圧は0.05MPaとし、各フィルタ成形体は、外径25mm、貫通孔の直径9mm、長さ120mmとし、実施例のフィルタ成形体の湾曲曲率半径は280mmとした。   As an example, a curved filter molded body shown in FIG. 1 was prepared. As a comparative example, as shown in FIG. 5B, a filter molded body having a linear shape was also prepared. About the filter molded object of these Examples and the comparative example, according to the household water purifier test method (JIS S3201: 2010), the initial filtration flow rate and the removal rate of the free residual chlorine in each flow level were measured. The hydrodynamic pressure was 0.05 MPa, each filter molded body had an outer diameter of 25 mm, a through hole diameter of 9 mm, a length of 120 mm, and the curvature radius of the filter molded body of the example was 280 mm.

図8は、上述した家庭用浄水器試験での初期濾過流量の測定結果を示す。実施例のフィルタ成形体の初期濾過流量は、比較例の直線形状のものとほぼ同等であり、上述した一次成形後に湾曲曲げを行っても、一次成形体での多孔質の空隙が良好に保持されることが分かる。   FIG. 8 shows the measurement results of the initial filtration flow rate in the household water purifier test described above. The initial filtration flow rate of the filter molded body of the example is almost the same as that of the linear shape of the comparative example, and the porous voids in the primary molded body are well maintained even when the bending is performed after the primary molding described above. You can see that

図9は、各流量レベルでの遊離残留塩素除去率の測定結果を示す。遊離残留塩素除去率も実施例のフィルタ成形体は比較例のものとほぼ同等であり、一次成形後に湾曲曲げを行っても、空隙での浄化成分の固着状態も良好に保持されることが分かる。   FIG. 9 shows the measurement results of the free residual chlorine removal rate at each flow level. The removal rate of free residual chlorine is almost the same as that of the comparative example of the molded filter, and it can be seen that even if the curved molding is performed after the primary molding, the fixed state of the purification component in the gap is maintained well. .

図10は、図1に示した第1の実施形態のフィルタ成形体1を用いた浄水器を湾曲形状の蛇口30の内部に装着した例を示す。この蛇口30はホース31の先に取り付けられたシャワー用のものであり、蛇口30の蛇口部30aに接続された湾曲した把持部30bの内部に、フィルタ成形体1を用いたカートリッジ式の浄水器が挿入されて装着されている。   FIG. 10 shows an example in which a water purifier using the filter molded body 1 of the first embodiment shown in FIG. 1 is mounted inside a curved tap 30. This faucet 30 is for a shower attached to the tip of a hose 31, and a cartridge-type water purifier using a filter molded body 1 inside a curved gripping portion 30b connected to the faucet portion 30a of the faucet 30. Is inserted and installed.

前記浄水器は、フィルタ成形体1の中心孔1aの上流側を閉塞するキャップ部材21と、フィルタ成形体1の下流側に取り付けられた通水部材22を備えている。ホース31から把持部30aに流入する水は、被覆部材2で被覆されたフィルタ成形体1の外径側から流れ込み、フィルタ成形体1で濾過された水は中心の中心孔1aに流れ出す。中心孔1aに流れ出した水は通水部材22の開口から蛇口部30aに流出する。   The water purifier includes a cap member 21 that closes the upstream side of the center hole 1 a of the filter molded body 1, and a water passage member 22 that is attached to the downstream side of the filter molded body 1. The water flowing from the hose 31 into the grip portion 30a flows from the outer diameter side of the filter molded body 1 covered with the covering member 2, and the water filtered by the filter molded body 1 flows out into the central hole 1a. The water flowing out to the center hole 1a flows out from the opening of the water passage member 22 to the faucet portion 30a.

図11は、本発明に係る製造方法で製造した第2の実施形態のフィルタ成形体1を示す。このフィルタ成形体1は、基本的な構成は第1の実施形態のものと同じであり、前記中心孔1aの一端側が閉塞されている点のみが異なる。この一端側の閉塞部1bの長さLは、中心孔1aがある部位の肉厚寸法Tの0.5〜10倍とされ、閉塞部1bの外側端面はシート状の被覆部材2aで被覆されている。この実施形態でも、図中に矢印で示すように、処理される水は外周側から湾曲形状のフィルタ成形体1に流入し、処理された水は中心孔1aから閉塞部1bと反対側の他端側に流出する。第1の実施形態のものと同様に、フィルタ成形体1は超高分子量ポリエチレンに粒状と粉末状の活性炭を混合して分散させた多孔質のものとされ、被覆部材2、2aはポリエチレン系繊維の不織布で形成されている。   FIG. 11 shows a filter molded body 1 according to a second embodiment manufactured by the manufacturing method according to the present invention. The basic structure of the filter molded body 1 is the same as that of the first embodiment, except that one end side of the center hole 1a is closed. The length L of the closed portion 1b on one end side is 0.5 to 10 times the thickness T of the portion where the central hole 1a is located, and the outer end surface of the closed portion 1b is covered with a sheet-like covering member 2a. ing. Also in this embodiment, as shown by arrows in the figure, the treated water flows into the curved filter molded body 1 from the outer peripheral side, and the treated water flows from the center hole 1a to the other side opposite to the closed portion 1b. It flows out to the end side. As in the first embodiment, the filter molded body 1 is a porous material in which granular and powdered activated carbon is mixed and dispersed in ultrahigh molecular weight polyethylene, and the covering members 2 and 2a are made of polyethylene fibers. It is formed of non-woven fabric.

以下に、第2の実施形態のフィルタ成形体1の製造工程を説明する。前記混合攪拌工程、冷却固化工程、再加熱工程、湾曲曲げ工程および仕上工程は、第1の実施形態のものと同じであるので、説明を省略する。   Below, the manufacturing process of the filter molded object 1 of 2nd Embodiment is demonstrated. Since the mixing and stirring step, the cooling and solidifying step, the reheating step, the bending and bending step, and the finishing step are the same as those in the first embodiment, description thereof is omitted.

図12(a)、(b)は、第1の実施形態のものと同様に混合攪拌工程で混合攪拌された混合原料3を前記型10内に充填する充填工程を示す。この充填工程では、底型12に立設された中子11の高さが、投入された混合原料3に埋没するように低く形成されている点が、図3(a)、(b)に示した第1の実施形態のものと異なる。その他は第1の実施形態のものと同じであり、混合原料3は漏斗14を用いて投入され、混合原料3の投入後に漏斗14は上方に抜き取られる。   FIGS. 12A and 12B show a filling step for filling the mold 10 with the mixed raw material 3 mixed and stirred in the mixing and stirring step in the same manner as in the first embodiment. In this filling step, the height of the core 11 erected on the bottom mold 12 is formed so as to be buried in the charged mixed raw material 3 as shown in FIGS. 3 (a) and 3 (b). Different from that of the first embodiment shown. Others are the same as those in the first embodiment, and the mixed raw material 3 is charged using a funnel 14. After the mixed raw material 3 is charged, the funnel 14 is extracted upward.

図13は、つぎの一次成形工程を示す。この一次成形工程では、前記混合原料3に中子11が埋没した状態で、加熱された混合原料3が上型13で加圧される点が、図4に示した第1の実施形態のものと異なる。したがって、つぎの冷却固化工程で冷却固化されて離型された一次成形体4には、図14(a)に示すように、一端側が閉塞部4bで閉塞された中心孔4aが形成される。   FIG. 13 shows the next primary forming step. In the primary molding step, the heated mixed raw material 3 is pressurized by the upper mold 13 with the core 11 buried in the mixed raw material 3 in the first embodiment shown in FIG. And different. Therefore, as shown in FIG. 14 (a), a central hole 4a whose one end is closed by the closing portion 4b is formed in the primary molded body 4 which has been cooled and solidified in the next cooling and solidifying step.

図14(b)は、つぎの被覆工程を示す。この被覆工程では、前記中心孔4aの一端側の閉塞部4bの外側端面も、外周面と同様のシート状の被覆部材2aで被覆される点が、図5(b)に示した第1の実施形態のものと異なる。こののち、外周面と閉塞部4bの外側端面を被覆部材2、2aで被覆された一次成形体4は、第1の実施形態のものと同様に、再加熱工程、湾曲曲げ工程および仕上工程を経て、図11に示したフィルタ成形体1とされる。なお、閉塞部4bの外側端面の被覆部材2aは、湾曲曲げ工程の後に装着してもよい。   FIG. 14B shows the next covering step. In this covering step, the outer end face of the closing portion 4b on one end side of the center hole 4a is also covered with a sheet-like covering member 2a similar to the outer peripheral face, as shown in FIG. Different from the embodiment. After that, the primary molded body 4 in which the outer peripheral surface and the outer end surface of the closing portion 4b are covered with the covering members 2 and 2a is subjected to the reheating process, the bending and bending process, and the finishing process as in the first embodiment. As a result, the filter molded body 1 shown in FIG. 11 is obtained. In addition, you may mount | wear with the coating | coated member 2a of the outer side end surface of the obstruction | occlusion part 4b after a bending process.

図15は、図11に示した第2の実施形態のフィルタ成形体1を用いた浄水器を湾曲形状の蛇口30の内部に装着した例を示す。この蛇口30もホース31の先に取り付けられたシャワー用のものであり、蛇口30の蛇口部30aに接続された湾曲した把持部30bの内部に、フィルタ成形体1を用いたカートリッジ式の浄水器が挿入されて装着されている。   FIG. 15 shows an example in which the water purifier using the filter molded body 1 of the second embodiment shown in FIG. 11 is mounted inside the curved tap 30. This faucet 30 is also for a shower attached to the tip of the hose 31, and is a cartridge type water purifier using the filter molded body 1 inside a curved gripping portion 30b connected to the faucet portion 30a of the faucet 30. Is inserted and installed.

この浄水器では、フィルタ成形体1の中心孔1aが閉塞された閉塞部1b側が上流側に向けられている。したがって、中心孔1aの上流側を閉塞するキャップ部材を不要とすることができる。フィルタ成形体1の下流側には、図10に示した第1の実施形態のものと同様に、通水部材22が取り付けられており、ホース31から把持部30aに流入する水は、フィルタ成形体1の被覆部材2で被覆された外径側と、被覆部材2aで被覆された閉塞部1b側から流れ込み、フィルタ成形体1で濾過された水は中心の中心孔1aに流れ出す。中心孔1aに流れ出した水は通水部材22の開口から蛇口部30aに流出する。   In this water purifier, the closed portion 1b side where the center hole 1a of the filter molded body 1 is closed is directed to the upstream side. Therefore, a cap member that closes the upstream side of the center hole 1a can be eliminated. Similar to the first embodiment shown in FIG. 10, a water passage member 22 is attached to the downstream side of the filter molded body 1, and the water flowing from the hose 31 into the grip portion 30 a is filtered. Water flowing from the outer diameter side of the body 1 covered with the covering member 2 and the closed portion 1b side covered with the covering member 2a and filtered by the filter molded body 1 flows out to the central hole 1a. The water flowing out to the center hole 1a flows out from the opening of the water passage member 22 to the faucet portion 30a.

上述した各実施形態では、フィルタ成形体を中心孔を有する円筒状のものとしたが、本発明に係るフィルタ成形体は、中心孔のない円柱状のものとすることもでき、多角筒状や多角柱状のものとすることもできる。
In each of the above-described embodiments, the filter molded body has a cylindrical shape having a center hole. However, the filter molded body according to the present invention can also have a columnar shape without a center hole. Ru can also be made polygonal columns.

上述した各実施形態では、1本の一次成形体から1つのフィルタ成形体を得るようにしたが、一次成形体を長尺のものとし、長尺の一次成形体を所定長さに切断して、後の再加熱工程、湾曲曲げ工程および仕上工程に供給し、1本の一次成形体から複数のフィルタ成形体を得るようにすることもできる。   In each of the above-described embodiments, one filter molded body is obtained from one primary molded body. However, the primary molded body is long and the long primary molded body is cut to a predetermined length. It is also possible to supply a plurality of filter molded bodies from one primary molded body by supplying them to the subsequent reheating step, bending and bending step, and finishing step.

上述した各実施形態では、湾曲したシャワー用蛇口に挿入して装着する浄水器に用いるものとしたが、本発明に係るフィルタ成形体は、他の蛇口に装着される浄水器に用いることもでき、中水や下水の処理用に用いることもできる。   In each of the embodiments described above, the filter molded body according to the present invention can be used for a water purifier attached to another faucet. It can also be used for the treatment of middle water and sewage.

1 フィルタ成形体
1a 中心孔
1b 閉塞部
2、2a 被覆部材
3 混合原料
4 一次成形体
4a 中心孔
4b 閉塞部
10 型
11 中子
12 底型
13 上型
13a 孔
14 漏斗
15 曲げ型
16 上型
16a 型溝
16b ガイド孔
17 下型
17a 型溝
17b ガイドピン
18 端面押さえ具
18a 鍔
21 キャップ部材
22 通水部材
30 蛇口
30a 蛇口部
30b 把持部
31 ホース
DESCRIPTION OF SYMBOLS 1 Filter molded object 1a Center hole 1b Blocking part 2, 2a Cover member 3 Mixed raw material 4 Primary molded object 4a Center hole 4b Blocking part 10 Mold 11 Core 12 Bottom mold 13 Upper mold 13a Hole 14 Funnel 15 Bending mold 16 Upper mold 16a Mold groove 16b Guide hole 17 Lower mold 17a Mold groove 17b Guide pin 18 End face pressing tool 18a a 21 Cap member 22 Water passage member 30 Faucet 30a Faucet part 30b Grasping part 31 Hose

Claims (9)

バインダとしてのポリマに、水を浄化するための活性炭からなる浄化成分を分散させた多孔質とされ、長手方向に湾曲した水処理用のフィルタ成形体の製造方法において、前記バインダとなる固形ポリマと、この固形ポリマに対して分散されるようにした前記浄化成分との原料を混合して攪拌する混合攪拌工程と、混合攪拌した混合原料を直線状のキャビティを有する型内に充填する充填工程と、前記型内に充填した混合原料を加熱したのち加圧して直線形状に成形する一次成形工程と、一次成形工程で成形された一次成形体を冷却固化して離型する冷却固化工程と、離型した前記一次成形体を再加熱して軟化させる再加熱工程と、軟化させた前記一次成形体を、対向する湾曲面を有する一対の曲げ型間で挟圧して長手方向に湾曲させる湾曲曲げ工程と、湾曲させた成形体を前記曲げ型間で冷却硬化させて湾曲したフィルタ成形体とする仕上工程とからなり、前記充填工程で前記型内の直線状のキャビティの中心に直線状の中子を設け、前記一次成形体に長手方向に延びる中心孔を形成するようにしたフィルタ成形体の製造方法。 In the method for producing a filter molded body for water treatment curved in the longitudinal direction, in which a purification component made of activated carbon for purifying water is dispersed in a polymer as a binder, the solid polymer as the binder A mixing and stirring step of mixing and stirring raw materials with the purification component dispersed in the solid polymer, and a filling step of filling the mixed and stirred mixed raw materials into a mold having a linear cavity; A primary forming step in which the mixed raw material filled in the mold is heated and then pressed to form a linear shape, a cooling and solidifying step in which the primary molded body formed in the primary forming step is cooled and solidified, and then released. A reheating step in which the molded primary molded body is reheated and softened, and a bending in which the softened primary molded body is clamped between a pair of bending dies having opposing curved surfaces and curved in the longitudinal direction. A lower step, Ri Do and a finishing step a is curved shaped body is cooled to cure between the bending tool and filter moldings curved, straight to the center of the linear cavity in the mold in the filling process A method for manufacturing a filter molded body in which a core is provided and a central hole extending in a longitudinal direction is formed in the primary molded body . 前記バインダとしてのポリマを、メルトインデックスが1.1〜2.3g/10min(ASTM D1238、190℃、15kgLoad)の低メルトインデックスのものとした請求項1に記載のフィルタ成形体の製造方法。   The method for producing a filter molded body according to claim 1, wherein the polymer as the binder has a low melt index with a melt index of 1.1 to 2.3 g / 10 min (ASTM D1238, 190 ° C, 15 kgLoad). 前記混合攪拌工程における前記固形ポリマの配合率を、5〜50質量%とした請求項1または2に記載のフィルタ成形体の製造方法。   The manufacturing method of the filter molded object of Claim 1 or 2 which made the compounding ratio of the said solid polymer in the said mixing and stirring process 5-50 mass%. 前記冷却固化工程で冷却固化された一次成形体の密度を0.35〜0.65g/cm3とした請求項1乃至3のいずれかに記載のフィルタ成形体の製造方法。 The method for producing a filter molded body according to any one of claims 1 to 3 , wherein a density of the primary molded body cooled and solidified in the cooling and solidifying step is set to 0.35 to 0.65 g / cm 3 . 前記湾曲曲げ工程における前記曲げ型間での挟圧圧力を、3〜10MPaとした請求項1乃至4のいずれかに記載のフィルタ成形体の製造方法。   The manufacturing method of the filter molded object in any one of Claims 1 thru | or 4 which made the pinching pressure between the said bending molds in the said bending process into 3-10 MPa. 前記一次成形体の中心孔を、長手方向の両端側に貫通するものとした請求項1乃至5のいずれかに記載のフィルタ成形体の製造方法。 The manufacturing method of the filter molded object in any one of Claim 1 thru | or 5 which shall penetrate the center hole of the said primary molded object to the both ends side of a longitudinal direction. 前記一次成形体の中心孔を、長手方向の一端側が閉塞されたものとした請求項1乃至5のいずれかに記載のフィルタ成形体の製造方法。 The method for producing a filter molded body according to any one of claims 1 to 5, wherein the central hole of the primary molded body is closed at one end in the longitudinal direction. 前記中心孔の一端側を閉塞する閉塞部の長手方向の長さ寸法を、前記中心孔がある部位の前記一次成形体の肉厚寸法の0.5〜10倍の範囲とした請求項に記載のフィルタ成形体の製造方法。 The longitudinal length dimension of the closed portion for closing one end of the central bore, in claim 7 which is 0.5 to 10 times the wall thickness dimension of the primary molded body portion with said central hole The manufacturing method of the filter molded object of description. バインダとしてのポリマに、水を浄化するための活性炭からなる浄化成分を分散させた多孔質とされ、長手方向に湾曲した水処理用のフィルタ成形体の製造方法において、前記バインダとなる固形ポリマと、この固形ポリマに対して分散されるようにした前記浄化成分との原料を混合して攪拌する混合攪拌工程と、混合攪拌した混合原料を直線状のキャビティを有する型内に充填する充填工程と、前記型内に充填した混合原料を加熱したのち加圧して直線形状に成形する一次成形工程と、一次成形工程で成形された一次成形体を冷却固化して離型する冷却固化工程と、離型した前記一次成形体を再加熱して軟化させる再加熱工程と、軟化させた前記一次成形体を、対向する湾曲面を有する一対の曲げ型間で挟圧して長手方向に湾曲させる湾曲曲げ工程と、湾曲させた成形体を前記曲げ型間で冷却硬化させて湾曲したフィルタ成形体とする仕上工程とからなり、前記冷却固化工程と前記再加熱工程との間に、前記一次成形体の外面をシート状の被覆部材で被覆する被覆工程を設けたフィルタ成形体の製造方法。 In the method for producing a filter molded body for water treatment curved in the longitudinal direction, in which a purification component made of activated carbon for purifying water is dispersed in a polymer as a binder, the solid polymer as the binder A mixing and stirring step of mixing and stirring raw materials with the purification component dispersed in the solid polymer, and a filling step of filling the mixed and stirred mixed raw materials into a mold having a linear cavity; A primary forming step in which the mixed raw material filled in the mold is heated and then pressed to form a linear shape, a cooling and solidifying step in which the primary molded body formed in the primary forming step is cooled and solidified, and then released. A reheating step in which the molded primary molded body is reheated and softened, and a bending in which the softened primary molded body is clamped between a pair of bending dies having opposing curved surfaces and curved in the longitudinal direction. A lower step, Ri Do and a finishing step a is curved shaped body is cooled to cure between the bending tool and filter moldings curved, between the reheating step and the cooling and solidifying step, the primary molding A method for producing a filter molded body, which is provided with a covering step for covering the outer surface of the body with a sheet-like covering member .
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