JP3824481B2 - Pulp molded molded body pressing device - Google Patents

Pulp molded molded body pressing device Download PDF

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Publication number
JP3824481B2
JP3824481B2 JP2000329451A JP2000329451A JP3824481B2 JP 3824481 B2 JP3824481 B2 JP 3824481B2 JP 2000329451 A JP2000329451 A JP 2000329451A JP 2000329451 A JP2000329451 A JP 2000329451A JP 3824481 B2 JP3824481 B2 JP 3824481B2
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elastic core
molded body
pressing device
core
main body
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JP2002128043A (en
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雅之 大崎
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Kao Corp
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Kao Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、パルプモールド法により抄造された成形体をその内側より中子を膨出させて押圧するパルプモールド成形体の押圧装置に関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
中空のパルプモールド成形体を製造するに際しては、成形体の脱水・乾燥時に成形体内に拡縮自在な袋状の弾性中子を挿入し該成形体内で該弾性中子を膨出させて該成形体の内面を押圧するパルプモールド成形体の押圧装置（以下、単に押圧装置ともいう。）を用いる場合がある。従来の押圧装置では、前記中子の開口部にフランジ部を設けておき、該フランジ部を装置本体の装着部に固定された位置決めリング内に直接押し当てておき、該位置決めリングにリング状の押さえ板をはめ込んで該フランジ部を押さえ板で押さえつけ、該押さえ板をネジで装置本体に固定し、中子のフランジ部を装置本体と押さえ板との間に狭持して固定していた。
【０００３】
このため、中子を装置本体に対して水平に取り付ける場合や、中子を装置本体に対し下方から取り付ける場合には、その取り付け、取り外しの作業に手間がかかっていた。また、中子の位置決めの微調整が困難であり、正確な位置決めを行うことができなかった。
【０００４】
従って、本発明の目的は、中子の取り付け取り外しを容易に行え、且つ中子の位置決めを正確に行うことができる、パルプモールド成形体の押圧装置を提供することにある。
【０００５】
【課題を解決するための手段】
本発明は、パルプモールド法により抄造された中空の成形体内に拡縮自在な袋状の弾性中子を挿入し該成形体内で該弾性中子を膨出させて該成形体の内面を押圧するパルプモールド成形体の押圧装置であって、前記弾性中子の開口部を狭持し且つその開口状態を保持する保持具と、該保持具の装着部を具備する装置本体とを備えており、該装置本体は、その装着部において前記保持具を位置決めする位置決め手段を有しているパルプモールド成形体の押圧装置を提供することにより前記目的を達成したものである。
【０００６】
【発明の実施の形態】
以下本発明のパルプモールド成形体の押圧装置を、その好ましい実施形態に基づき図面を参照しながら説明する。
【０００７】
図１は、本発明の押圧装置の一実施形態を示したものである。同図において、符号１は、押圧装置を示している。
同図に示すように、押圧装置１は、パルプモールド法により抄造された中空の成形体（図示せず）内に拡縮自在な袋状の弾性中子２を挿入し該成形体内で弾性中子２を膨出させて該成形体の内面を押圧する装置であり、弾性中子２の開口部２０を狭持し且つその開口状態を保持する保持具３と、保持具３の装着部を具備する装置本体４とを備えており、装置本体４は、その装着部において保持具３を位置決めする位置決め手段５を有している。
【０００８】
前記弾性中子２は、例えば、引張強度、反発弾性及び伸縮性等に優れたウレタン、フッ素系ゴム、シリコーン系ゴム又はエラストマー等の材料から形成されている。また、伸縮性を有する布等にこれらの材料をコーティングして形成することもできる。弾性中子２の開口部２０にはフランジ２１が設けられており、また、その底部内面には上方に向けて突出する水平断面形状が略正方形の突出部２２が設けられている。弾性中子２の膨出部２３の形状は、押圧する成形体の内面形状に併せて適宜設定することができるが、後述のように捻回されていない状態での形状は、型の内面形状と略同形状であるか又はそれよりも大きいことが、弾性中子２の拡張倍率を小さくでき、その耐久性を向上させ得ることから好ましい。
【０００９】
前記保持具３は、弾性中子２の開口部２０をそのフランジ部２１において狭持する２つの狭持部材３０，３１を主体として構成されており、狭持部材３０，３１は、ネジ３２によって固定されている。狭持部材３０は、弾性中子２のフランジ部２１を上面側から狭持するリング状の部材である。狭持部材３０は、弾性中子２の開口部２０に挿入される凸部３０ａ及び当該フランジ部２１の上面が当接する凹部３０ｂを有しており、凸部３０ａの下面中央部には、後述のコアパイプ６０が回転可能なクリアランスを有する孔３０ｃが形成されている。また、凸部３０ａの内部は、コアパイプ６０と後述の駆動軸６１との連結部の収容スペースとなっている。狭持部材３０の外周面には、後述のボールプランジャ５０のボールが係合されるＶ字断面形状の係合溝又は深さ方向に縮径する穴３０ｄが形成されている。狭持部材３１は、弾性中子２のフランジ部２１をその下面側から狭持する部材である。なお、狭持部材３１と弾性中子２との間には筒状の緩衝部材３３が配設されており、狭持部材３１の角部が弾性中子２の膨出部２３に繰り返し接触したときの消耗を抑え得るようになしてある。
【００１０】
前記装置本体４に具備された保持具３を装着する装着部は、前記狭持部材３０の外径に略対応した位置決めリング４０がフレーム４１に固定されて設けられている。フレーム４１には、孔４２が形成されており、後述の駆動軸６１がベアリング（図示せず）を介して挿設できるようになっている。また、装置本体４は、前記弾性中子２の成形体への出し入れ方向にフレーム４１を平行移動させる駆動手段（図示せず）及び後述の流体の入出経路に通じ、流体を出し入れするコンプレッサー、吸引ポンプ等の流体供給・排出手段（図示せず）を備えている。
【００１１】
前記位置決め手段５は、保持具３をその外周部において係止して装置本体４からの離脱を規制すると共に保持具３を位置決めする複数のボールプランジャ５０を備えている。ボールプランジャ５０は、有底シリンダー内にコイルバネ（図示せず）が配設されるとともに該バネの先端部にボールが配設されたものである。該シリンダーの外周面には雄ねじが形成されており、底部（後部）には、レンチ穴が形成されている。そして該ボールを対象物に当接させた際に、該シリンダーのねじ込み位置によって該バネの弾性力に基づく押圧力で該ボールを該対象物に押圧できるように構成されたものである。位置決め手段５は、装置本体４のフレーム４１に固定された位置決めリング４０とともに構成されている。位置決めリング４０には、その外周面から内周面に向けて貫通するネジ孔４０ａが等間隔をおいて放射状に複数形成されており、これらのネジ孔４０ａに、前記ボールプランジャ５０がそれぞれ螺着されている。そして、前記レンチ穴にレンチをはめ込んでこれらボールプランジャ５０のねじ込み位置を適宜微調整することによって、狭持部材３０を図中の水平面内で移動させ、保持具３を装置本体４に対して精度よく位置決めできるようになっている。
【００１２】
押圧装置１は、弾性中子２を連動させて弾性中子２を捻回させる捻回手段６を備えている。捻回手段６は、弾性中子２内に挿設された中空のコアパイプ６０と、コアパイプ６０をその軸周りに正逆回転させる駆動軸６１と、駆動軸６１に駆動力を伝達する駆動手段（図示せず）とを備えている。コアパイプ６０は、その断面が略正方形状に形成されており、その下端部には弾性中子２の前記突出部２２が挿嵌されている。コアパイプ６０には、後述の流体が出入りする孔６０ａが多数形成されている。駆動軸６１は、内部が中空に形成されており、その下端部の外周には前記凸部３０ａの内面に接して後述の流体の漏れを防ぐシールドパッキン６１ａが配設されている。駆動軸６１は、ベアリング（図示せず）を介して前記フレーム４１の孔４２内に挿設されている。前記駆動手段により駆動軸６１に駆動力が伝達されると、駆動軸６１及びコアパイプ６０が共に回転する。そして、これらの回転に伴って弾性中子２の膨出部も連動して回転するが、弾性中子２のフランジ部２１は狭持部材３０，３１によって固定されているので、所定の回転角度以上に回転すると当該弾性中子２が次第にコアパイプ６０の周りに捻回される。このように弾性中子２の膨出部２３がコアパイプ６０の周りに捻回されることで、弾性中子２の水平断面形状を小さくすることができ、成形体がその口頸部の細いボトル状のものであっても弾性中子２の出し入れ時に当該口頸部内面に触れることなく出し入れが可能となるほか、高速での操業が可能となる。
【００１３】
前記コアパイプ６０の内部及び孔６０ａ並びに前記駆動軸６１内部は、前記弾性中子２内に流体を出し入れするための流体経路を形成しており、この流体経路は、前記装置本体４に備えている流体供給・排出手段に通じている。前述のようにコアパイプ６０には、多数の孔６０ａが形成されており、これらの孔６０ａを通じて弾性中子２内を均一に加圧、減圧することができるようになっている。特に、弾性中子２内を減圧する場合には、仮に一つの孔が塞がった場合でも他の孔から排出できるため、膨出部２３の捻回をスムーズに行え且つ捻回状態をより小さくすることができる。弾性中子２を膨張させるために用いられる流体には、圧縮空気（加熱空気）、油（加熱油）、その他各種の液が用いられる。該流体の供給圧力は、０．０１〜５ＭＰａ、特に０．１〜３ＭＰａとすることが好ましい。
【００１４】
押圧装置１において、弾性中子２を装置本体４に取り付ける場合には、前記狭持部材３０を、その凸部３０ａを上方に向けて載置し、凸部３０ａに弾性中子２の開口部２０をはめ込む。そして、緩衝部材３３及び狭持部材３１を装着し、ネジ３２で堅締して弾性中子２のフランジ部２１を狭持部材３０、３１間に挟み込む。そして、狭持部材３０の凸部３０ａの孔３０ｃにコアパイプ６０を通し、狭持部材３０を位置決めリング４０内にはめ込む。この際、予めボールプランジャ５０のボールの先端部を位置決めリング４の内周面からわずかに突出させておくことが好ましい。狭持部材３０のはめ込み初期は前記ボールプランジャ５０のボールが狭持部材３０の外周面に押圧されて後退し、前記溝又は穴３０ｄが該ボールの深さに達すると該ボールがバネの弾性力で復帰して溝又は穴３０ｄに係合し、狭持部材３１が装置本体４のフレーム４１に仮固定される。このようにして仮固定を行うことで、図１に示すように弾性中子２を下方から装置本体４に取り付ける場合や、弾性中子２を装置本体に水平に取り付ける場合であっても、取り付け作業を容易に行うことができる。そして、仮固定を行った後、ボールプランジャ５０のねじ込み位置を微調整することによって、狭持部材３０を水平面内で移動させ、保持具３を装置本体４に対して精度よく位置決めして固定する。弾性中子２を装置本体４から取り外すときには、ボールプランジャ５０のボールが狭持部材３０の外周面に押圧されて後退することで、狭持部材３０が装置本体４から取り外される。その後、狭持部材３０から弾性体中子２を取り外す。
【００１５】
このように、押圧装置１では、予め弾性中子２をその開口状態で保持具３で保持しておき、保持具３を装置本体４に装着できるので、弾性中子２の取り付け方向によらず、容易に取り付け、取り外しを行うことができる。また、装着部の位置決めリング５０にボールプランジャ５を備えているため、弾性中子２を装置本体４に装着してからその位置決めをさらに正確に且つ容易に行うことができる。更に、一度位置決めを行えば、次に装着する場合、容易に位置決めを再現することができる。また、予備の弾性中子及び保持具を複数用意し、弾性中子を予め保持具に取り付けておくことで、更に取り付け取り外しをスムーズに行うことができる。
【００１６】
本発明のパルプモールド成形体の押圧装置は、前記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において適宜変更することができる。
本発明のパルプモールド成形体の押圧装置は、前記実施形態の押圧装置１におけるように、弾性中子２の開口部２０を保持具３で保持し、コアパイプ６０に下端部を弾性中子２の突起２２を挿嵌させて固定することにより、弾性中子２をコアパイプ６０のまわり捻回できるようにすることが好ましいが、例えば、弾性中子２内を減圧吸引する場合には、当該吸引力により弾性中子２の底部をコアパイプ６０の下端部にて吸引して固定し、当該弾性中子をコアパイプ６０のまわり捻回できるようにしてもよい。
【００１７】
本発明のパルプモールド成形体の押圧装置は、パルプモールド法により抄造された成形体（パルプ積層体）の脱水時、乾燥時のいずれにも用いることができる。また、本発明のパルプモールド成形体の押圧装置は、上述のように口頸部の細いボトル状の成形体に特に効果的に用いることができるが、弾性中子の膨出部の形態を適宜変更することで、広い開口部を有する箱形のカートン状成形体、置物等の他の形態の成形体にも用いることができることはいうまでもない。
【００１８】
【発明の効果】
本発明によれば、中子の取り付け取り外しを容易に行え、且つ中子の位置決めを正確に行うことができる。
【図面の簡単な説明】
【図１】本発明のパルプモールド成形体の押圧装置の一実施形態を示す要部概略断面図である。
【符号の説明】
１ パルプモールド成形体の押圧装置
２ 弾性中子
３ 保持具
４ 装置本体
５ 位置決め手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pressing device for a pulp mold molded body that presses a molded body made by a pulp mold method by expanding a core from the inside thereof.
[0002]
[Prior art and problems to be solved by the invention]
When producing a hollow pulp mold molded body, a bag-shaped elastic core that can be expanded and contracted is inserted into the molded body when the molded body is dehydrated and dried, and the elastic core is swelled in the molded body. In some cases, a pressing device (hereinafter also simply referred to as a pressing device) for a pulp mold molded body that presses the inner surface of the pulp mold is used. In the conventional pressing device, a flange portion is provided in the opening of the core, the flange portion is directly pressed into a positioning ring fixed to the mounting portion of the device main body, and a ring-like shape is formed on the positioning ring. A presser plate was fitted and the flange portion was pressed with a presser plate, the presser plate was fixed to the apparatus main body with a screw, and the core flange part was fixed between the apparatus main body and the presser plate.
[0003]
For this reason, when the core is attached to the apparatus main body horizontally or when the core is attached to the apparatus main body from below, it takes time to attach and remove the core. In addition, fine adjustment of the positioning of the core is difficult, and accurate positioning cannot be performed.
[0004]
Accordingly, an object of the present invention is to provide a pressing device for a pulp mold molded body, in which the core can be easily attached and detached and the core can be accurately positioned.
[0005]
[Means for Solving the Problems]
The present invention relates to a pulp in which a bag-like elastic core that can be expanded and contracted is inserted into a hollow molded body made by a pulp mold method, and the elastic core is bulged in the molded body to press the inner surface of the molded body. A pressing device for a molded body, comprising: a holding tool that holds an opening of the elastic core and holds the opening; and a device main body including a mounting portion of the holding tool, The main body of the apparatus achieves the object by providing a pressing device for a pulp mold product having positioning means for positioning the holder in the mounting portion.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a pressing device for a pulp mold product of the present invention will be described based on its preferred embodiments with reference to the drawings.
[0007]
FIG. 1 shows an embodiment of the pressing device of the present invention. In the same figure, the code | symbol 1 has shown the press apparatus.
As shown in the figure, the pressing device 1 includes a bag-shaped elastic core 2 that can be expanded and contracted in a hollow molded body (not shown) made by a pulp mold method, and the elastic core in the molded body. 2 is a device that bulges out and presses the inner surface of the molded body, and includes a holder 3 that holds the opening 20 of the elastic core 2 and holds the opening, and a mounting portion of the holder 3. The apparatus main body 4 has positioning means 5 for positioning the holder 3 at the mounting portion.
[0008]
The elastic core 2 is made of, for example, a material such as urethane, fluorine rubber, silicone rubber, or elastomer having excellent tensile strength, impact resilience, stretchability, and the like. It can also be formed by coating these materials on a stretchable cloth or the like. A flange 21 is provided in the opening 20 of the elastic core 2, and a protrusion 22 having a substantially square horizontal cross section that protrudes upward is provided on the inner surface of the bottom. The shape of the bulging portion 23 of the elastic core 2 can be set as appropriate in accordance with the shape of the inner surface of the molded body to be pressed, but the shape when not twisted as described below is the shape of the inner surface of the mold. It is preferable that the expansion ratio of the elastic core 2 can be reduced and its durability can be improved.
[0009]
The holder 3 is mainly composed of two holding members 30 and 31 that hold the opening 20 of the elastic core 2 at its flange portion 21, and the holding members 30 and 31 are connected by screws 32. It is fixed. The sandwiching member 30 is a ring-shaped member that sandwiches the flange portion 21 of the elastic core 2 from the upper surface side. The holding member 30 has a convex portion 30a inserted into the opening 20 of the elastic core 2 and a concave portion 30b with which the upper surface of the flange portion 21 abuts. A hole 30c having a clearance with which the core pipe 60 can rotate is formed. Further, the inside of the convex portion 30a is a housing space for a connecting portion between the core pipe 60 and a drive shaft 61 described later. On the outer peripheral surface of the pinching member 30, an engagement groove having a V-shaped cross section for engaging a ball of a later-described ball plunger 50 or a hole 30d whose diameter is reduced in the depth direction is formed. The holding member 31 is a member that holds the flange portion 21 of the elastic core 2 from the lower surface side. A cylindrical buffer member 33 is disposed between the holding member 31 and the elastic core 2, and the corners of the holding member 31 repeatedly contact the bulging portion 23 of the elastic core 2. It is designed to reduce the consumption of time.
[0010]
A mounting portion for mounting the holder 3 provided in the apparatus main body 4 is provided with a positioning ring 40 substantially corresponding to the outer diameter of the holding member 30 fixed to a frame 41. A hole 42 is formed in the frame 41 so that a drive shaft 61 described later can be inserted through a bearing (not shown). Further, the apparatus main body 4 is connected to a driving means (not shown) for moving the frame 41 in the direction in which the elastic core 2 is inserted into and removed from the molded body and a fluid inlet / outlet path, which will be described later, a compressor for taking in and out the fluid, Fluid supply / discharge means (not shown) such as a pump is provided.
[0011]
The positioning means 5 includes a plurality of ball plungers 50 for locking the holder 3 at the outer peripheral portion thereof to restrict detachment from the apparatus body 4 and positioning the holder 3. In the ball plunger 50, a coil spring (not shown) is disposed in a bottomed cylinder, and a ball is disposed at the tip of the spring. A male screw is formed on the outer peripheral surface of the cylinder, and a wrench hole is formed on the bottom (rear part). When the ball is brought into contact with the object, the ball can be pressed against the object by a pressing force based on the elastic force of the spring depending on the screwing position of the cylinder. The positioning means 5 is configured with a positioning ring 40 fixed to the frame 41 of the apparatus main body 4. In the positioning ring 40, a plurality of screw holes 40a penetrating from the outer peripheral surface toward the inner peripheral surface are radially formed at equal intervals. The ball plungers 50 are screwed into the screw holes 40a, respectively. Has been. Then, by inserting a wrench into the wrench hole and finely adjusting the screwing positions of these ball plungers 50 as appropriate, the holding member 30 is moved in the horizontal plane in the figure, and the holder 3 is accurately adjusted with respect to the apparatus body 4. It can be positioned well.
[0012]
The pressing device 1 includes a twisting means 6 for twisting the elastic core 2 by interlocking the elastic core 2. The twisting means 6 includes a hollow core pipe 60 inserted into the elastic core 2, a drive shaft 61 that rotates the core pipe 60 forward and backward around its axis, and a drive means that transmits a driving force to the drive shaft 61 ( (Not shown). The core pipe 60 has a substantially square cross section, and the protruding portion 22 of the elastic core 2 is inserted into the lower end portion of the core pipe 60. The core pipe 60 has a large number of holes 60a through which fluids described later enter and exit. The drive shaft 61 has a hollow interior, and a shield packing 61a that is in contact with the inner surface of the convex portion 30a and prevents fluid leakage described later is disposed on the outer periphery of the lower end portion thereof. The drive shaft 61 is inserted into the hole 42 of the frame 41 through a bearing (not shown). When the driving force is transmitted to the driving shaft 61 by the driving means, the driving shaft 61 and the core pipe 60 rotate together. The bulging portion of the elastic core 2 rotates in conjunction with these rotations. However, since the flange portion 21 of the elastic core 2 is fixed by the holding members 30 and 31, a predetermined rotation angle is obtained. When rotating as described above, the elastic core 2 is gradually twisted around the core pipe 60. In this way, the bulging portion 23 of the elastic core 2 is twisted around the core pipe 60, whereby the horizontal cross-sectional shape of the elastic core 2 can be reduced, and the molded body is a bottle with a narrow neck and neck. Even when the elastic core 2 is in the shape, it can be taken in and out without touching the inner surface of the mouth and neck when the elastic core 2 is taken in and out, and can be operated at high speed.
[0013]
The inside of the core pipe 60, the hole 60a, and the inside of the drive shaft 61 form a fluid path for taking fluid into and out of the elastic core 2, and this fluid path is provided in the apparatus main body 4. Leads to fluid supply / discharge means. As described above, the core pipe 60 is formed with a large number of holes 60a, and the inside of the elastic core 2 can be uniformly pressurized and depressurized through these holes 60a. In particular, when the inside of the elastic core 2 is depressurized, even if one hole is blocked, it can be discharged from the other hole, so that the bulging portion 23 can be smoothly twisted and the twisted state can be made smaller. be able to. Compressed air (heated air), oil (heated oil), and other various liquids are used as the fluid used to expand the elastic core 2. The supply pressure of the fluid is preferably 0.01 to 5 MPa, particularly 0.1 to 3 MPa.
[0014]
In the pressing device 1, when the elastic core 2 is attached to the device main body 4, the holding member 30 is placed with the convex portion 30 a facing upward, and the opening portion of the elastic core 2 is positioned on the convex portion 30 a. Fit 20 in. Then, the buffer member 33 and the sandwiching member 31 are mounted and tightened with the screws 32 to sandwich the flange portion 21 of the elastic core 2 between the sandwiching members 30 and 31. Then, the core pipe 60 is passed through the hole 30 c of the convex portion 30 a of the holding member 30, and the holding member 30 is fitted into the positioning ring 40. At this time, it is preferable that the tip of the ball of the ball plunger 50 is slightly protruded from the inner peripheral surface of the positioning ring 4 in advance. When the pinching member 30 is initially fitted, the ball of the ball plunger 50 is pressed against the outer peripheral surface of the pinching member 30 and retracts, and when the groove or hole 30d reaches the depth of the ball, the ball is elasticized by the spring. And is engaged with the groove or hole 30d, and the holding member 31 is temporarily fixed to the frame 41 of the apparatus main body 4. Even if the elastic core 2 is attached to the apparatus main body 4 from below as shown in FIG. 1 or is attached to the apparatus main body horizontally as shown in FIG. Work can be done easily. Then, after temporarily fixing, by finely adjusting the screwing position of the ball plunger 50, the holding member 30 is moved in the horizontal plane, and the holder 3 is accurately positioned and fixed with respect to the apparatus main body 4. . When the elastic core 2 is removed from the apparatus main body 4, the ball of the ball plunger 50 is pressed against the outer peripheral surface of the holding member 30 and moves backward, whereby the holding member 30 is removed from the apparatus main body 4. Thereafter, the elastic core 2 is removed from the holding member 30.
[0015]
Thus, in the pressing device 1, the elastic core 2 is held in advance in the opened state by the holder 3 and the holder 3 can be attached to the apparatus main body 4, so that it does not depend on the mounting direction of the elastic core 2. Easy to install and remove. Further, since the ball plunger 5 is provided in the positioning ring 50 of the mounting portion, the positioning can be performed more accurately and easily after the elastic core 2 is mounted on the apparatus main body 4. Further, once positioning is performed, the positioning can be easily reproduced in the next mounting. Further, by preparing a plurality of spare elastic cores and holders, and attaching the elastic cores to the holders in advance, the attachment and removal can be performed smoothly.
[0016]
The pressing device of the pulp mold molded body of the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.
As in the pressing device 1 of the above-described embodiment, the pressing device of the pulp mold molded body of the present invention holds the opening 20 of the elastic core 2 with the holder 3, and the core pipe 60 has the lower end portion of the elastic core 2. It is preferable that the elastic core 2 can be twisted around the core pipe 60 by inserting and fixing the protrusions 22. However, for example, when suctioning the inside of the elastic core 2 under reduced pressure, the suction force Thus, the bottom of the elastic core 2 may be sucked and fixed at the lower end of the core pipe 60 so that the elastic core can be twisted around the core pipe 60.
[0017]
The pressing device for a pulp mold molded body of the present invention can be used for both dehydration and drying of a molded body (pulp laminate) made by the pulp mold method. In addition, the pulp mold molded body pressing device of the present invention can be used particularly effectively for a bottle-shaped molded body with a narrow neck and neck as described above. It goes without saying that it can be used for other forms of molded articles such as box-shaped carton-shaped molded articles having a wide opening, figurines, and the like.
[0018]
【The invention's effect】
According to the present invention, the core can be easily attached and detached, and the core can be accurately positioned.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing a main part of an embodiment of a pressing device for a pulp mold product of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Press apparatus of a pulp mold molded object 2 Elastic core 3 Holder 4 Apparatus main body 5 Positioning means

Claims (3)

パルプモールド法により抄造された中空の成形体内に拡縮自在な袋状の弾性中子を挿入し該成形体内で該弾性中子を膨出させて該成形体の内面を押圧するパルプモールド成形体の押圧装置であって、前記弾性中子の開口部を狭持し且つその開口状態を保持する保持具と、該保持具の装着部を具備する装置本体とを備えており、該装置本体は、その装着部において前記保持具を位置決めする位置決め手段を有しているパルプモールド成形体の押圧装置。A pulp mold molded body in which a bag-shaped elastic core that can be expanded and contracted is inserted into a hollow molded body made by the pulp mold method, and the elastic core is bulged in the molded body to press the inner surface of the molded body. A pressing device, comprising: a holding tool for holding the opening of the elastic core and holding the opening; and a device main body provided with a mounting portion for the holding tool. A pulp mold molded body pressing device having positioning means for positioning the holder in the mounting portion. 前記位置決め手段は、前記保持具をその外周部において係止して前記装置本体からの離脱を規制すると共に該保持具を位置決めする複数のボールプランジャを備えている請求項１記載のパルプモールド成形体の押圧装置。The pulp molding body according to claim 1, wherein the positioning means includes a plurality of ball plungers for locking the holder at an outer peripheral portion thereof to restrict detachment from the apparatus main body and positioning the holder. Pressing device. 前記弾性中子を連動させて該弾性中子を捻回させる捻回手段を備えている請求項１又は２記載のパルプモールド成形体の押圧装置。The pressing device for a pulp mold product according to claim 1 or 2, further comprising a twisting means for twisting the elastic core in conjunction with the elastic core.
JP2000329451A 2000-10-27 2000-10-27 Pulp molded molded body pressing device Expired - Lifetime JP3824481B2 (en)

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JP3824481B2 true JP3824481B2 (en) 2006-09-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003041499A (en) * 2001-05-22 2003-02-13 Kao Corp Manufacturing mold for fiber molded body

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CN111593616B (en) * 2020-05-15 2022-05-27 永发（河南）模塑科技发展有限公司 Extrusion die and extrusion process for paper-plastic integral bottle
CN111593613B (en) * 2020-05-15 2022-05-27 永发（河南）模塑科技发展有限公司 Plastic suction mold of paper-plastic integral bottle and plastic suction process thereof
CN111593615B (en) * 2020-05-15 2022-05-27 永发（河南）模塑科技发展有限公司 Paper-plastic integral bottle, forming die and production process
CN111593617B (en) * 2020-05-15 2022-06-07 永发（河南）模塑科技发展有限公司 Hot-press forming die and hot-press forming process for paper-plastic integral bottle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003041499A (en) * 2001-05-22 2003-02-13 Kao Corp Manufacturing mold for fiber molded body

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