JPS6049927A - Method and apparatus for forming plurally layered expanded molding with curved face - Google Patents
Method and apparatus for forming plurally layered expanded molding with curved faceInfo
- Publication number
- JPS6049927A JPS6049927A JP58159993A JP15999383A JPS6049927A JP S6049927 A JPS6049927 A JP S6049927A JP 58159993 A JP58159993 A JP 58159993A JP 15999383 A JP15999383 A JP 15999383A JP S6049927 A JPS6049927 A JP S6049927A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- beads
- foamed
- opening
- slider
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
- B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
Abstract
Description
【発明の詳細な説明】
本発明は、曲面を有する成形品を製作する発泡成形金型
内に発泡倍率、粒径、色彩等又は合成樹脂の種類の異る
異種の予備発泡ビーズを２層又はそれ以上の複数層状に
充填ロ一体成形してなる成形品、その製造方法及び装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides two or more layers of pre-foamed beads of different types with different expansion ratios, particle sizes, colors, etc. or types of synthetic resins in a foam mold for producing molded products with curved surfaces. The present invention relates to a molded product formed by integrally molding a plurality of layers, a method for manufacturing the same, and an apparatus.
従来の盛形品は、発泡倍率等の一定の成形体であり、使
用条件により外側又は内側に別素材によシ被覆したり、
使用目的にあった品質にして使用する。更に、特開昭５
：３−４３７６２に開示されている方法では、異種の発
泡ビーズを空気の移動を利用して、金型内に順次充填完
了後、加熱発泡一体成形しているが、ビーズの充填、組
合ぜに空気流を利用しているから、型内でビーズ同志の
乱流を生じ、両種が混入され境界面は全く形成し得ない
。Conventional molded products are molded products with a certain expansion ratio, etc., and depending on the usage conditions, they may be coated with a different material on the outside or inside, or
Use the product at a quality that suits its purpose. Furthermore, JP-A-5
In the method disclosed in No. 3-43762, different types of foamed beads are sequentially filled into a mold by using air movement, and then heated and foamed to form an integral mold. Since airflow is used, a turbulent flow of beads occurs within the mold, and both species are mixed together, making it impossible to form any interface.
又本願発明と同じ出願人の特開昭５５−１１８４１号で
は、曲面を有しない平面のみからなる立方体成形品及び
その製法として異種ビーズを層状に充填一体成形する方
法が開示されているが、この方法では曲面を有する成形
体の場合、金型開閉方向に平行な部分は第２層充填用の
間隙を作れないだめに２層の一部が厚みが薄くなるか又
は２層にならない欠点がある。In addition, Japanese Patent Application Laid-open No. 11841/1983, filed by the same applicant as the present invention, discloses a cubic molded product consisting only of flat surfaces without curved surfaces, and a method for manufacturing the same in which beads of different types are filled in layers and integrally molded. In the case of a molded article with a curved surface, this method has the drawback that a gap for filling the second layer cannot be created in the part parallel to the mold opening/closing direction, so that some of the two layers become thinner or the two layers are not formed. .
本発明者らは上記欠点を解消すべく鋭意研究の結果本発
明に到達したのである。The present inventors have arrived at the present invention as a result of intensive research to eliminate the above-mentioned drawbacks.
本発明は（１）合成樹脂の種類及び又は発泡倍率等を異
にする２種以上の予備発泡樹脂ビーズの多段充填、加熱
による曲面境界面を有することを特徴とする曲面を有す
る複数層状発泡成形品、（２）予備発泡合成樹脂ビーズ
を曲面を有する成形体用金型内に充填する際、金型内の
金型開閉方向に平行な部分に２層又は複数層状発泡成形
体を作るため層の境界面にそって金型開閉方向にスライ
ド可能で且つキャビティ内面に達するスライダーを設け
、金型内に予備発泡ビーズを充填し、加熱、冷却して低
融着させる工程と、低融着後、金型を所要間隙まで開く
工程と、上記スライダーを移動させ、金型内の低融着物
をコア金型に移動させ、生ずる全型内間隙に異種ビーズ
を充填し型締め、加熱、冷却する工程とからなり、ビー
ズの充填、低融着、金型開き、成形品及びスライダーの
移動、異種ビーズの充填及び加熱、低融着を１回以上繰
返した後、加熱して一体成形品を得ることを特徴とする
曲面を有する異種発泡ビーズの複数層状発泡成形品の５
÷成形法、（３）予備発泡合成樹脂ビーズから曲面を有
する発泡成形品を加熱成形する金型発泡成形装置におい
て、２種又はそれ以上の複数の異種の予備発泡ビーズそ
れぞれの供給用充填器をキャビティ金型の中心部分に接
続し、金型開閉方向に平行な部分の異種ビーズの２層以
上の多層成形境界面にそって金型開閉方向に移動可能で
且つキャビティ内面に達する板状、筒状又は筒状体の上
部に固定又は伸縮自在の針状物をビーズを通過させない
よう密接して設けた形状のスライダーを設置し、該スラ
イダーを金型開閉方向にスライドさせるエアーシリンダ
ーを設けてなる異種ビーズの複数層状発泡成形装置を内
容とする。The present invention provides (1) multi-layered foam molding having a curved surface characterized by having a curved boundary surface formed by multistage filling and heating of two or more types of pre-foamed resin beads having different types of synthetic resins and/or expansion ratios, etc. (2) When filling pre-foamed synthetic resin beads into a mold for a molded product having a curved surface, a layer is added to the part of the mold parallel to the mold opening/closing direction to create a two-layer or multi-layer foamed molded product. A slider that can slide in the mold opening/closing direction along the boundary surface of the mold and reaches the inner surface of the cavity is provided, and the mold is filled with pre-foamed beads, heated and cooled to achieve low fusion, and after low fusion. , the step of opening the mold to the required gap, moving the slider, moving the low-fusion material in the mold to the core mold, filling the entire gap in the mold with different types of beads, clamping the mold, heating, and cooling. The process consists of filling beads, low fusion, opening the mold, moving the molded product and slider, filling and heating different types of beads, and low fusion one or more times, and then heating to obtain an integrally molded product. 5 of multi-layer foam molded products of different types of foam beads having curved surfaces characterized by
÷ Molding method, (3) In a mold foam molding device for heating and molding a foam molded product with a curved surface from pre-foamed synthetic resin beads, a filling device for supplying each of two or more different types of pre-foamed beads is used. A plate-like or cylindrical plate connected to the center of the cavity mold, movable in the mold opening/closing direction along the multilayer molding boundary surface of two or more layers of different beads parallel to the mold opening/closing direction, and reaching the inner surface of the cavity. A slider with a fixed or extensible needle-like object closely spaced so as not to allow the beads to pass is installed on the top of a shaped or cylindrical body, and an air cylinder is provided to slide the slider in the mold opening/closing direction. The contents include a multi-layer foam molding device for different types of beads.
本発明は、この方法及び装置によって、従来の欠点を解
消し得たもので、曲面を有する成形体であっても同−金
型内で異種の予備発泡ビーズ間の境界を明確にし、一体
化して自動成形でき、成形品は使用目的に対し強度、耐
衝撃性等優れた物性を有し、最有利能率的な成形が可能
である。The present invention solves the conventional drawbacks by using this method and device, and allows the boundaries between different types of pre-foamed beads to be clearly defined and integrated within the same mold, even for molded objects with curved surfaces. The molded product has excellent physical properties such as strength and impact resistance for the purpose of use, and can be molded in the most efficient manner.
以下に詳細に説明する。This will be explained in detail below.
成形工程における組合せは、先づ型締めを行い、金型予
熱を行った後、予備発泡合成樹脂ビーズをクラッキング
無しか、まだは僅かに取り金型内に充填を行った後、ク
ラッキングを締めて低融着できる程度に加熱成形を適度
に行い、短時間の冷却時間をとシ、低融着後、金型を適
度の間隔、好ましくは３〜１０順開き、充填器側より金
型に空気を吹込み金型内の低融着物をコア側に移動さぜ
、又金型開閉方向に平行な部分の２層成形境界面の金型
スライダーを移動させ、金型内に生じた外側の間隙に１
段目とは発泡倍率、色彩等の異なる予備発泡ビーズを充
填する。例えば、発泡倍率の低い樹脂ビーズの充填を行
い、型締めを行った後、通常の加熱工程により一体成形
を行う。初回加熱の条件は再加熱により収縮をきたさな
い程度の加熱条件をえらぶことか好ましく、金型開きに
よつて表面が大きく崩れない程度の融着が望ましい。The combination in the molding process is to first close the mold, preheat the mold, then remove the pre-foamed synthetic resin beads with or without cracking and fill them into the mold, then tighten the cracking. Heat forming is carried out appropriately to the extent that low fusion can be achieved, and a short cooling time is required. After low fusion, the molds are opened at appropriate intervals, preferably 3 to 10 times in order, and air is poured into the mold from the filling machine side. The low-fusion material in the mold is moved to the core side, and the mold slider at the two-layer molding interface parallel to the mold opening/closing direction is moved to close the outer gap created in the mold. to 1
The stages are filled with pre-expanded beads of different expansion ratio, color, etc. For example, after filling resin beads with a low expansion ratio and clamping the mold, integral molding is performed by a normal heating process. It is preferable to select heating conditions for the initial heating to a degree that does not cause shrinkage upon reheating, and it is desirable to select a degree of fusion that does not cause the surface to collapse significantly when the mold is opened.
この一体成形品は、高発泡部がより緩衝性にとみ、低発
泡部は硬度、強度が高く、高発泡部との高度な融着力を
持つスキン層部を形成する。また型締めの間隙を任意に
セットすることにより層の厚みを変化させ、使用目的に
あった物性を得ることができる。In this integrally molded product, the highly foamed part has better cushioning properties, the low foamed part has high hardness and strength, and forms a skin layer part that has a high degree of fusion strength with the highly foamed part. Furthermore, by setting the mold clamping gap arbitrarily, the layer thickness can be changed to obtain physical properties suitable for the purpose of use.
金型内の金型開閉方向に平行な２層成形境界面にそって
金型開閉方向に移動可能なスライダーは、板状、又は好
ましくは筒状であり、筒状部の上部に予め長さを所望に
設定した針状物又は同方向に伸縮自在な針状物をビーズ
を通過させないよう密接して設けたものが好ましい。こ
の場合は第１回ビーズの低融着の後、低融着物を金型開
閉方向にコア型の方に移動させ、スライダーを移動させ
、その後第２ビーズを外側の間隙に充填する。The slider, which is movable in the mold opening/closing direction along the two-layer molding interface parallel to the mold opening/closing direction in the mold, is plate-shaped or preferably cylindrical, and has a length in advance at the top of the cylindrical part. It is preferable that a needle-like object having a desired setting or a needle-like object that can be expanded and contracted in the same direction is provided closely so as not to allow the beads to pass through. In this case, after the first low fusion of beads, the low fusion material is moved toward the core mold in the mold opening/closing direction, the slider is moved, and then the outer gap is filled with the second beads.
スライダーが筒状のものはヘルメットの成形等横断面が
円形又は楕円形のものに適し、板状のものはその他の形
状で必要な個所のみに適している。A slider with a cylindrical shape is suitable for molding helmets, etc. with a circular or oval cross section, and a plate-shaped slider is suitable only for other shapes where it is necessary.
何れもその厚みを多少大きくすれば第１段ビーズ発泡成
形の後、スライドさせ引き抜けばその部分が空隙になり
、そこに第２ビーズを充填、発泡成形できる。In either case, if the thickness is made somewhat larger, after the first stage bead foam molding, by sliding it out and pulling it out, that part becomes a void, which can be filled with second beads and foam molded.
本発明において、低融着させ異種ビーズを充填し更に低
融着させる順次一連操作を繰り返すことにより曲面を有
する２層以上の多層一体成形品も得ることが出来る。In the present invention, a multilayer integrally molded product having two or more layers having a curved surface can also be obtained by repeating a series of operations in which the fusion is lowered, filled with different types of beads, and further fused.
本発明によれば、表面を低発泡品とし硬度を高くした成
形品として外観、物性ともにすぐれた曲面を有する一体
成形品を工業的に有利に得ることができ、従来のフィル
ム、シート等と複合成形を行うのに比べ品質もよく能率
よく製作でき優れたものである。曲面を有する一体成形
品としては、例えば、ヘルメット、ボート等多種多様な
曲面を有する形状のものに適用できる。According to the present invention, it is possible to industrially advantageously obtain an integral molded product having a curved surface with excellent appearance and physical properties as a molded product with a low foaming surface and high hardness, and can be combined with conventional films, sheets, etc. Compared to molding, it is superior in quality and can be manufactured more efficiently. The integrally molded product having a curved surface can be applied to a wide variety of shapes having curved surfaces, such as helmets and boats.
本発明に使用する合成樹脂は、発泡ビーズ成形に使用さ
れる発泡ポリスチレン樹脂、発泡ポリオレフィン樹脂等
のすべての樹脂が適用可能である。As the synthetic resin used in the present invention, all resins used in foamed bead molding, such as foamed polystyrene resin and foamed polyolefin resin, can be used.
本発明の効果としては次の通りである。The effects of the present invention are as follows.
１）外表面の硬化及び強度の大きい層、内側の高発泡層
の存在による耐衝撃性等物性の向上した境界面の明瞭な
曲面を有する多層成形体が得られる。1) A multilayer molded product having improved physical properties such as impact resistance due to the hardening of the outer surface and the presence of a high-strength layer and the presence of a highly foamed inner layer and a clearly curved boundary surface can be obtained.
又これと他の素材との組合せをする場合は他の素材は僅
かでよく、コスト的にも有利である。Furthermore, when this material is combined with other materials, only a small amount of other materials are required, which is advantageous in terms of cost.
２）高発泡樹脂ビーズは大粒径のため表面性が悪いので
表面を小粒径の低発泡樹脂ビーズで成形すれば表面美麗
な高発泡成形体を得られる。2) Since highly foamed resin beads have a large particle size and poor surface properties, if the surface is molded with low foamed resin beads of small particle size, a highly foamed molded product with a beautiful surface can be obtained.
３）発泡ポリスチレン樹脂、発泡ポリオレフィン樹脂の
組合せにより、より高級な緩衝材が得られる。3) A higher quality cushioning material can be obtained by combining foamed polystyrene resin and foamed polyolefin resin.
実施例
添付図面に示す金型を有する発泡成形機にて、ヘルメッ
ト（左右中２４０ ｍｎｒ、 ％Ｊ後巾２８５ｒＲ７１
＋１厚さ３０闘）の二層成形を行った。Example: Using a foam molding machine with the mold shown in the attached drawings, a helmet (left and right middle 240 mnr, %J back width 285rR71) was manufactured.
Two-layer molding with +1 thickness of 30mm) was performed.
金型を閉じ、ヘルメット周辺部の金型開閉方向と平行な
成形用空隙部のスライダーを閉じ、４０倍に予備発泡し
たポリスチレン発泡ビーズを金型空隙部に充填して、加
熱、水冷して低融着を行った後、金型を８朋開いて低融
着物を金型コア部を開いた方向に移動させ、同時に上記
スライダーを移動させて生じた外側間隙に１０倍に予備
発泡したビーズを充填し、再び加熱、水冷の後、放冷を
行った。８問厚みの低発泡スキン層を明瞭な境界面を持
って被覆しだ。表面美麗な強度、耐衝撃強度の向上した
優れたヘルメットが簡単な操作で得られた。従来品は２
５倍発泡の一層成形品で、目付（重量）は１７０ｇのも
のに対し、本２層成形品も同重量で上記の通り優れた物
性のものであった。Close the mold, close the slider in the molding cavity parallel to the mold opening/closing direction around the helmet, fill the mold cavity with polystyrene foam beads that have been pre-expanded 40 times, heat them, cool them with water, and cool them to a low temperature. After fusing, the mold was opened eight times, the low-fusing material was moved in the direction of opening the mold core, and at the same time the slider was moved to fill the outer gap created by beads pre-foamed to 10 times the size. The container was filled, heated again, cooled with water, and then left to cool. A low foam skin layer with a thickness of 8 cm was coated with a clear boundary surface. An excellent helmet with beautiful surface strength and improved impact resistance can be obtained with simple operation. The conventional product is 2
The 5-fold foamed single-layer molded product had a basis weight (weight) of 170 g, while the two-layer molded product had the same weight and excellent physical properties as described above.
従来品の同じ重量のものを比較したときは、本発明は衝
撃の緩和の点で非常に優れたものである。When compared with conventional products of the same weight, the present invention is extremely superior in terms of impact mitigation.
又この成形品の表面にＦ Ｒ１）をはシ伺ける場合は同
じ衝撃強度で比較すれば従来品では５馴厚さのＦＲＰが
要るに対し本成形品は３πｍで充分である。Also, if F R1) is visible on the surface of this molded product, if we compare the same impact strength, the conventional product requires FRP with a thickness of 5 mm, whereas 3πm is sufficient for this molded product.
発泡成形の操作冬時間は表１の通りであり、１サイクル
時間は５分であった。The operation time for foam molding was as shown in Table 1, and one cycle time was 5 minutes.
表 ］table ]
第１図は本発明の２層発泡成形品ヘルメットの金型構造
の概略断面図、第２図は本発明２層成形工程の説明図（
金型断面図、Ｉは第１段高発泡ビーズの充填、低融着、
■は金型開き、仮成形物の移動、スライダーの移動、■
は外側空隙部への第２ビーズの充填、型締め、加熱、融
着）。
（１）・・・キャビティ型、（２）・・・コア型、（３
）・・・高発泡ビーズ充填器、
（ルＪ・・低発泡ビーズ充填器、 （４）・・スライダ
ー、（５）・・・針状部、 （６）・・・筒状体、（７
）・・・エアーシリンダー、
（８）・・・エアーシリンダー支柱、（９）・・・空間
部、００・・・高発泡ビーズ、 ０］）・・・低発泡ビ
ーズ、αつ・・・境界面。
特許出願人 鐘淵化学工業株式会社
代理人 弁理士 浅 野 真 −
第１図
第２図Fig. 1 is a schematic sectional view of the mold structure of the two-layer foam molded helmet of the present invention, and Fig. 2 is an explanatory diagram of the two-layer molding process of the present invention (
Mold cross-sectional view, I is filled with high foam beads in the first stage, low fusion,
■Opens the mold, moves the temporary molded object, moves the slider, ■
filling of the outer cavity with the second beads, mold clamping, heating, and fusing). (1)...Cavity type, (2)...Core type, (3
)...High foam bead filling device, (Le J...Low foaming bead filling device, (4)...Slider, (5)...Needle part, (6)...Cylindrical body, (7
)...Air cylinder, (8)...Air cylinder support, (9)...Space, 00...Highly foamed beads, 0])...Low foamed beads, α...Boundary surface. Patent applicant Makoto Asano, agent of Kanebuchi Chemical Industry Co., Ltd., patent attorney - Figure 1 Figure 2
Claims (1)
以上の予備発泡樹脂ビーズの多段充填、加熱による曲面
境界面を有することを特徴とする曲面を有する複数層状
発泡成形品、２ 予備発泡合成樹脂ビーズを曲面を有す
る成形金型内に充填する際、金型内の金型開閉方向に平
行な部分に２層又は複数層状発泡成形体を作るため層の
境界面にそって金型開閉方向にスライド可能で且つキャ
ビティ内面に達するスライダーを設け、金型内に予備発
泡ビーズを充填し、加熱、冷却して低融着させる工程と
、低融着後、金型を所要間隙寸で開く工程と、上記スラ
イダーを移動させ、金型内の低融着物をコア金型に移動
させ、生ずる全型内間隙に異種のビーズを充填し、型締
め、加熱、冷却する工程とからカリ、ビーズの充填、低
融着、金型開き、成形品及びスライダ一部の移動、異種
ビーズの充填及び加熱、低融着を１回以上繰返しだ後、
加熱して一体成形品を得ることを特徴とする曲面を有す
る異種発泡ビーズの複数層状発泡成形品の成形法。 ３、予備発泡合成樹脂ビーズから曲面を有する発泡成形
品を加熱成形する金型発泡成形装置において、２種又は
それ以上の複数の異種の予備発泡ビーズそれぞれの供給
用充填器をキャビティ金型の中心部分に接続し、金型開
閉方向に平行な部分の異種ビーズの２層以上の多層成形
境界面にそって金型開閉方向に移動可能で且つキャビテ
ィ内面に達する板状、筒状又は筒状体の上部に固定又は
伸縮自在の企１状物をビーズを通過させないよう密接し
て設けた形状のスライダーを設置し、該スライダーを金
型開閉方向にスライドさせるエアーシリンダーを設けて
なる異種ビーズの複数層状発泡成形装置。[Scope of Claims] 1. Multi-layered foaming having a curved surface characterized by having a curved boundary surface formed by multistage filling and heating of two or more pre-foamed resin beads of different types of synthetic resins and/or expansion ratios, etc. Molded product, 2 When filling pre-foamed synthetic resin beads into a molding mold with a curved surface, the layer boundary surface is used to create a two-layer or multi-layer foamed molded product in a part parallel to the mold opening/closing direction within the mold. A slider that can be slid in the mold opening/closing direction along the mold and reaches the inner surface of the cavity is provided, and the mold is filled with pre-foamed beads, heated and cooled to achieve low fusion, and after low fusion, the mold is removed. The step of opening the mold to the required gap size, moving the slider, moving the low-fusion material in the mold to the core mold, filling the entire gap in the mold with beads of different types, clamping the mold, heating, and cooling. After repeating the steps of potash, bead filling, low fusion, opening of the mold, movement of part of the molded product and slider, filling and heating of different types of beads, and low fusion one or more times,
A method for forming a multi-layered foamed product made of different types of foamed beads having curved surfaces, characterized by obtaining an integrally molded product by heating. 3. In a mold foam molding device for heating and molding a foam molded product with a curved surface from pre-foamed synthetic resin beads, a filling device for supplying two or more different types of pre-foamed beads is placed in the center of a cavity mold. A plate-shaped, cylindrical, or cylindrical body that connects to the mold part, is movable in the mold opening/closing direction along the multilayer molding boundary surface of two or more layers of different beads in the part parallel to the mold opening/closing direction, and reaches the inner surface of the cavity. A plurality of beads of different types, in which a fixed or retractable object is installed in close contact with the beads so that the beads do not pass through, and an air cylinder is provided to slide the slider in the mold opening/closing direction. Layered foam molding equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58159993A JPS6049927A (en) | 1983-08-30 | 1983-08-30 | Method and apparatus for forming plurally layered expanded molding with curved face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58159993A JPS6049927A (en) | 1983-08-30 | 1983-08-30 | Method and apparatus for forming plurally layered expanded molding with curved face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6049927A true JPS6049927A (en) | 1985-03-19 |
Family
ID=15705654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58159993A Pending JPS6049927A (en) | 1983-08-30 | 1983-08-30 | Method and apparatus for forming plurally layered expanded molding with curved face |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6049927A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002004188A1 (en) * | 2000-07-12 | 2002-01-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for producing moulded parts made of particle foam and comprising a covering layer |
| EP2697028B1 (en) * | 2011-04-13 | 2020-06-10 | Tryonic Limited | Process to mould objects with a dust material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54108869A (en) * | 1978-02-14 | 1979-08-25 | Sekisui Plastics | Cooforming method and apparatus of different raw materials |
| JPS54145764A (en) * | 1978-05-08 | 1979-11-14 | Sekisui Plastics | Double molding method of expansion moldings |
| JPS5542918U (en) * | 1978-09-13 | 1980-03-19 | ||
| JPS55139230A (en) * | 1979-04-18 | 1980-10-30 | Sekisui Plastics Co Ltd | Simultaneous forming of different materials |
-
1983
- 1983-08-30 JP JP58159993A patent/JPS6049927A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54108869A (en) * | 1978-02-14 | 1979-08-25 | Sekisui Plastics | Cooforming method and apparatus of different raw materials |
| JPS54145764A (en) * | 1978-05-08 | 1979-11-14 | Sekisui Plastics | Double molding method of expansion moldings |
| JPS5542918U (en) * | 1978-09-13 | 1980-03-19 | ||
| JPS55139230A (en) * | 1979-04-18 | 1980-10-30 | Sekisui Plastics Co Ltd | Simultaneous forming of different materials |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002004188A1 (en) * | 2000-07-12 | 2002-01-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for producing moulded parts made of particle foam and comprising a covering layer |
| EP2697028B1 (en) * | 2011-04-13 | 2020-06-10 | Tryonic Limited | Process to mould objects with a dust material |
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