JP2016101722A - Mold apparatus for resin molding - Google Patents
Mold apparatus for resin molding Download PDFInfo
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本発明は、樹脂成形用金型装置に関する。 The present invention relates to a resin molding die apparatus.
農水産容器や機器の包装材には、一般に、発泡スチロールが用いられている。ビーズ法発泡スチロール(EPS)は、ポリスチレンビーズに炭化水素ガスを吸収させ、これに高温蒸気を当てて樹脂を軟化させると共に圧力を加えて発泡させ、発泡したビーズ同士を融着させ、冷却させて所定の形状とする。発泡スチロール包装材は、軽量で緩衝性、断熱性があり、環境への影響が少ないなどの特徴がある。 In general, foamed polystyrene is used for packaging materials for agricultural and fishery containers and equipment. The polystyrene foam beads (EPS) absorbs hydrocarbon gas in polystyrene beads, softens the resin by applying high-temperature steam to it and foams it by applying pressure, fuses the foamed beads, cools them, and cools them. The shape of The foamed polystyrene packaging material is light in weight, has a buffering property and a heat insulating property, and has features such as little influence on the environment.
特許文献１には、従来技術として図７に示すように「型窩７００を形成する内壁体５００，６００と、蒸気供給管５１，６１、冷却水管５２０，６２０、排出管５３０，６３０をそれぞれ接続した箱形の外壁体５４０，６４０とをもって構成し、内壁体５００，６００と外壁体５４０，６４０との間全体を蒸気室５５０，６５０として形成している（考案の詳細な説明）」との記述があり、そして、従来技術の課題として「金型全体の温度を上げるために余分な蒸気を要することになり、多量の蒸気を使用せねばならないばかりか金型全体の加熱のために成形サイクル時間も長くかかる欠点があった（考案の詳細な説明）」との記述がある。そこで、特許文献１では、発泡樹脂成形用金型装置に関して「型窩を形成する各型部の周囲には各型部との間に間隙を存して略型形状に沿った壁体をそれぞれ蒸気室となす構成（その請求項１）」が提案された。 In Patent Document 1, as shown in FIG. 7, as a conventional technique, “inner wall bodies 500 and 600 forming a mold cavity 700, steam supply pipes 51 and 61, cooling water pipes 520 and 620, and discharge pipes 530 and 630 are connected. The box-shaped outer wall bodies 540 and 640 are formed, and the entire space between the inner wall bodies 500 and 600 and the outer wall bodies 540 and 640 is formed as steam chambers 550 and 650 (detailed explanation of the invention). There is a description, and as a problem of the prior art, “in order to raise the temperature of the entire mold, it requires extra steam, a large amount of steam has to be used, as well as a molding cycle for heating the entire mold There was a description that there was a drawback that took a long time (detailed explanation of the device). Therefore, in Patent Document 1, regarding the foam resin molding die device, “a wall body substantially along the shape of the mold is formed with a gap between each mold part around each mold part forming the mold cavity. A steam chamber configuration (claim 1) has been proposed.
特許文献２には、「凹型とそれを保持する凹型ハウジングとを有し、凹型の背面側において凹型ハウジング内に凹型チャンバを形成した凹型ユニットと、凸型とそれを保持する凸型ハウジングとを有し、凸型の背面側において凸型ハウジング内に凸型チャンバを形成した凸型ユニットとを備え、両ユニットを組み合わせて、凹型と凸型とで形成される成形空間内に発泡性樹脂粒子を充填し、成形空間内において発泡性樹脂粒子を加熱、発泡融着させて成形品を得るようになした型内発泡成形用金型装置であって、前記凹型を凹型ハウジングに対して、該凹型の正面側端部が遊端となるように片持ち状に支持して、前記凹型の遊端部と凹型ハウジング間に凸型ユニット側へ向けて開口する正面開口部を形成し、前記凹型と凸型とを組み合わせた状態で、前記正面開口部を凸型ユニットで閉鎖して、前記凹型チャンバを気密状とした構成（その請求項１）」が記載されている。 In Patent Document 2, “a concave unit having a concave mold and a concave housing that holds the concave mold, and having a concave chamber formed in the concave housing on the back side of the concave mold, a convex mold and a convex housing that holds the convex mold. And a convex unit having a convex chamber formed in the convex housing on the back side of the convex mold, and combining the both units, expandable resin particles in a molding space formed by the concave mold and the convex mold The mold apparatus for in-mold foam molding is obtained by heating and foaming and fusing the expandable resin particles in the molding space to obtain a molded product, wherein the concave mold is in contact with the concave housing. The concave front side end is supported in a cantilever shape so as to be a free end, and a front opening opening toward the convex unit side is formed between the concave free end and the concave housing. Combined with convex In state, to close the front opening in the convex unit, the configuration of the concave chamber was airtightly (Part claim 1) "it is described.
特許文献３には、「外周をフレームに固定し、対向配置される一対の金型取付プレートの一方には複数の凹金型部材を配設し、他方には、閉型時に成形キャビティを形成するよう対応する複数の凸金型部材を配設して、１サイクルの成形操作で複数個の発泡成形品を得るようにした発泡成形用金型であって、前記凹および凸金型部材の背面に間隔を設けてケーシングを配設して、それぞれ独立した個別用役チャンバを形成し、その個別用役チャンバに用役を個別に供給、排出可能とした構成（その請求項１）」が記載されている。 Patent Document 3 states that “a plurality of concave mold members are arranged on one of a pair of mold mounting plates that are fixed to the frame and are opposed to each other, and a molding cavity is formed on the other side when the mold is closed. A foam molding mold in which a plurality of corresponding convex mold members are arranged so as to obtain a plurality of foam molded products by one cycle molding operation, wherein the concave and convex mold members A configuration in which casings are provided at intervals on the back surface to form independent individual service chambers, and services can be individually supplied to and discharged from the individual service chambers (claim 1). Have been described.
しかしながら、既知の樹脂成形用金型装置においては、依然として未解決の問題が多々ある。 However, there are still many unsolved problems in the known resin mold apparatus.
特許文献１〜３記載の金型装置は、蒸気室を小さくするために、いずれも複雑な型構造となっており、金型コスト及びメンテナンスコストが非常に高くなってしまうという問題点を有する。しかし、型構造を単純化すると図７に示す従来例のように、多量の蒸気を使用せねばならないばかりか金型全体の加熱のために成形サイクル時間も長くかかる欠点がある。 The mold apparatuses described in Patent Documents 1 to 3 all have a complicated mold structure in order to make the steam chamber small, and have a problem that the mold cost and the maintenance cost become very high. However, if the mold structure is simplified, there is a disadvantage that a large amount of steam must be used as in the conventional example shown in FIG. 7, and the molding cycle time is long due to heating of the entire mold.
このような実情に鑑みて、本発明の目的は、単純な構造でありながら、蒸気室を小さくして金型の加熱を容易とし成形サイクル時間を短くできる、新規な省エネ構造の樹脂成形用金型装置を提供することにある。 In view of such circumstances, the object of the present invention is to provide a resin molding die having a novel energy-saving structure, which has a simple structure but can reduce the steam chamber to facilitate heating of the mold and shorten the molding cycle time. To provide a mold device.
本発明の樹脂成形用金型装置は、対向して配されて型開閉動作する雄型及び雌型と、雄型が取り付けられた第１のプレートと、雌型が取り付けられた第２のプレートを備え、雄型の背面側と第１のプレートの間に第１の蒸気室が設けられ、雌型の背面側と第２のプレートの間に第２の蒸気室が設けられており、雄型の正面側と雌型の正面側とで形成される成形空間内に発泡性樹脂を充填し、第１の蒸気室と第２の蒸気室に過熱蒸気を送ることで前記成形空間内において発泡性樹脂を加熱融着させて樹脂成形品を成形する金型装置であって、前記第１のプレートに沿って前記第１の蒸気室に過熱蒸気を送る流路が設けられており、前記雄型及び前記雌型はそれぞれ複数配されており、２つ以上の前記雄型に跨って前記流路が配されていることを特徴とする。 The mold apparatus for resin molding of the present invention includes a male mold and a female mold that are arranged to face each other and open and close, a first plate to which the male mold is attached, and a second plate to which the female mold is attached. A first steam chamber is provided between the male back side and the first plate, and a second steam chamber is provided between the female back side and the second plate. Foaming resin is filled in a molding space formed by the front side of the mold and the front side of the female mold, and foaming is performed in the molding space by sending superheated steam to the first steam chamber and the second steam chamber. A mold apparatus for forming a resin molded product by heat-sealing a functional resin, wherein a flow path for sending superheated steam to the first steam chamber along the first plate is provided, A plurality of molds and female molds are arranged, and the flow path is arranged across two or more male molds. And butterflies.
本発明によれば、複数の前記雄型に跨って過熱蒸気を供給する流路が配されているので、複数の雄型にそれぞれ配管接続する場合と比較して流体回路が単純化され、雄型側の蒸気室（第１の蒸気室）を小さくして金型の加熱を容易とし成形サイクル時間を短くできる。 According to the present invention, since the flow path for supplying superheated steam is arranged across the plurality of male dies, the fluid circuit is simplified compared to the case where pipes are connected to the plurality of male dies, respectively. The mold-side steam chamber (first steam chamber) can be made smaller to facilitate heating of the mold and shorten the molding cycle time.
前記流路は直線状であることが好ましい。流路の距離を短くすることで過熱蒸気の流路における熱損失を抑えられるからである。前記流路は、例えば管体に蒸気を放出するための穴が開いている構造とすることができる。 The channel is preferably linear. This is because heat loss in the flow path of the superheated steam can be suppressed by shortening the distance of the flow path. For example, the flow path may have a structure in which a hole for releasing vapor is opened in the tube body.
本発明は、前記流路は開渠となっており、過熱蒸気を送る流路とドレンを排出する流路を兼用していることを特徴とする。ここで、開渠とは、堀(ditch)のことである。 The present invention is characterized in that the flow path is open and serves as both a flow path for sending superheated steam and a flow path for discharging drain. Here, Kai is a ditch.
本発明によれば、過熱蒸気を送る流路とドレンを排出する流路を兼用することができるため、より単純な構造となる。そして、流路が開渠となっていることで、過熱蒸気を第２の蒸気室内に放出し易く、かつ、ドレンを機外に排出し易い構成となる。 According to the present invention, the flow path for sending the superheated steam and the flow path for discharging the drain can be used together, so that the structure is simpler. And since the flow path is open, it becomes the structure which is easy to discharge | release superheated steam in a 2nd steam chamber, and is easy to discharge | emit drain to the exterior.
本発明は、前記第１のプレートには前記第１の蒸気室に過熱蒸気を送るための第１の蒸気管と前記第１の蒸気室からドレンを排出するための第１の排出管が備わっており、前記第２のプレートには前記発泡性樹脂を充填する充填ノズルと前記第２の蒸気室に過熱蒸気を送るための第２の蒸気管と前記第２の蒸気室からドレンを排出するための第２の排出管が備わっていることを特徴とする。 In the present invention, the first plate is provided with a first steam pipe for sending superheated steam to the first steam chamber and a first discharge pipe for discharging drain from the first steam chamber. The second plate is filled with the foamable resin, the second steam pipe for sending superheated steam to the second steam chamber, and the drain is discharged from the second steam chamber. A second discharge pipe is provided.
本発明によれば、発泡性樹脂を充填し易く、金型から成形品を取り出し易い構成となる。 According to the present invention, the foamed resin can be easily filled and the molded product can be easily taken out from the mold.
前記雄型と前記雌型の材質としては、アルミニウム、鉄、銅、これらの合金等が挙げられる。前記雄型と前記雌型には、ベントホールが形成されている。
前記雄型と前記雌型は、鋳造、鍛造、切削加工、プレス加工、その他既知の加工方法で製造される。
Examples of the material of the male mold and the female mold include aluminum, iron, copper, and alloys thereof. A vent hole is formed in the male mold and the female mold.
The male mold and the female mold are manufactured by casting, forging, cutting, pressing, and other known processing methods.
前記第１のプレートと前記第２のプレートの材質としては、アルミニウム、鉄、銅、これらの合金等が挙げられる。これらプレートを構成するフレームとしては、鉄系金属が好ましい。アルミニウムと比較して鉄は強度や剛性に優れており、材料コストも廉価である。一方、熱伝導の観点からは、鉄と比較してアルミニウムは低比熱であり、熱伝導率に優れているので、加熱と冷却が円滑になされることとなる。そこで、両者の長所を合わせるために、前記フレームを鉄系金属にアルミニウム溶射することが好ましい。これにより、強度や剛性に優れ、加熱と冷却が円滑になされることとなる。 Examples of the material of the first plate and the second plate include aluminum, iron, copper, and alloys thereof. The frame constituting these plates is preferably an iron-based metal. Compared to aluminum, iron is superior in strength and rigidity, and the material cost is low. On the other hand, from the viewpoint of heat conduction, aluminum has a lower specific heat than iron and is excellent in thermal conductivity, so that heating and cooling are smoothly performed. Therefore, in order to match the advantages of both, it is preferable to spray the frame on the iron-based metal with aluminum. Thereby, it is excellent in intensity | strength and rigidity, and heating and cooling will be made smoothly.
前記雄型と前記雌型は、蒸気圧、油圧、空圧、電動機等の動力によって型閉じ型締めして樹脂注型し樹脂成形後に、型開きする構成となっているものであり、既知の機構が適用できる。 The male mold and the female mold are configured so that the mold is closed by clamping with a power of steam pressure, hydraulic pressure, pneumatic pressure, electric motor, etc. Mechanism can be applied.
前記第２のプレートには成形された樹脂（樹脂成形品）を取り出すためのエジェクト機構が備わっていることが好ましい。前記エジェクト機構としては、油圧、空圧、電動機等の動力によってエジェクトピンを突き出して樹脂成形品を押し出す構成や、エアー吐出力で樹脂成形品を押し出す構成や、前記雄型を微振動させて樹脂成形品を押し出す構成等が挙げられる。前記エジェクト機構としては、既知の機構が適用できる。 It is preferable that the second plate is provided with an eject mechanism for taking out the molded resin (resin molded product). The eject mechanism includes a structure in which an eject pin is pushed out by power of hydraulic pressure, pneumatic pressure, an electric motor, etc., a resin molded product is pushed out, a resin molded product is pushed out by an air discharge force, or the male mold is vibrated slightly. The structure etc. which extrude a molded article are mentioned. A known mechanism can be applied as the ejection mechanism.
本発明の樹脂成形用金型装置によれば、２つ以上の雌型に跨って過熱蒸気を供給する流路が配されているので、複数の雌型にそれぞれ配管接続する場合と比較して流体回路が単純化され、雌型側の蒸気室（第２の蒸気室）を小さくして金型の加熱を容易とし成形サイクル時間を短くできる、本発明によれば、過熱蒸気を送る流路とドレンを排出する流路を兼用することができるため、より単純な構造となる。そして、流路が開渠となっていることで、過熱蒸気を第２の蒸気室内に放出し易く、かつ、ドレンを機外に排出し易い構成となる。 According to the mold apparatus for resin molding of the present invention, since the flow path for supplying superheated steam is arranged across two or more female molds, as compared with the case where each pipe is connected to a plurality of female molds. According to the present invention, the flow path for sending superheated steam can be realized by simplifying the fluid circuit and reducing the female-side steam chamber (second steam chamber) to facilitate heating of the mold and shorten the molding cycle time. Since the flow path for discharging the drain can also be used, the structure becomes simpler. And since the flow path is open, it becomes the structure which is easy to discharge | release superheated steam in a 2nd steam chamber, and is easy to discharge | emit drain to the exterior.
これら本発明によって、単純な構造でありながら、蒸気室を小さくして金型の加熱を容易とし成形サイクル時間を短くできる、新規な省エネ構造の樹脂成形用金型装置となる。 According to the present invention, a resin molding die apparatus having a novel energy saving structure that can reduce the steam chamber to easily heat the die and shorten the molding cycle time while having a simple structure.
本発明を実施するための最良の形態を、実施例に基づいて以下に説明する。なお、本発明は、以下の実施の形態に限定されるものではなく、本発明と実質同一又は均等の範囲内において、既知の変更を加えることが可能である。 The best mode for carrying out the present invention will be described below based on examples. It should be noted that the present invention is not limited to the following embodiments, and known modifications can be made within a range substantially the same as or equivalent to the present invention.
（実施の形態）
図１は、本発明を適用した実施形態の樹脂成形用金型装置を示す平面図である。図２は、図１に示す金型装置１のＡ−Ａ断面図である。図３は、金型装置１の正面図である。正面図と背面図は同一又は対称になっている。図４は、図３に示す金型装置１のＢ−Ｂ断面図である。図４は、金型装置１の右側面図である。右側面図と左側面図は同一又は対称になっている。図６は、本実施形態の金型装置１の動作を示す構造図である。図６は、型開きした状態を示している。
本実施形態の金型装置１は、食品トレーとしての発泡スチロール容器２００を樹脂成形するための金型装置である。図１に示す例では、４個の発泡スチロール容器２００を同時成形する構成となっている。なお、２個や６個、８個の発泡スチロール容器２００を同時成形する場合もある。
(Embodiment)
FIG. 1 is a plan view showing a resin molding die apparatus according to an embodiment to which the present invention is applied. FIG. 2 is a cross-sectional view taken along line AA of the mold apparatus 1 shown in FIG. FIG. 3 is a front view of the mold apparatus 1. The front view and the rear view are the same or symmetrical. 4 is a BB cross-sectional view of the mold apparatus 1 shown in FIG. FIG. 4 is a right side view of the mold apparatus 1. The right side view and the left side view are the same or symmetric. FIG. 6 is a structural diagram showing the operation of the mold apparatus 1 of the present embodiment. FIG. 6 shows a state where the mold is opened.
The mold apparatus 1 of this embodiment is a mold apparatus for resin-molding a polystyrene foam container 200 as a food tray. In the example shown in FIG. 1, four foamed polystyrene containers 200 are simultaneously formed. In some cases, two, six, or eight foamed polystyrene containers 200 may be molded simultaneously.
本実施形態の金型装置１は、第１のプレート３と第２のプレート２が対向して配されて型開閉動作する構成である。第１のプレート３のフレーム３１にはベース３０１が取付固定されてベース３０１に雄型３５が取付固定されており、第２のプレート２のフレーム２１には雌型２５が取付固定されている（図２、図６）。そして、雄型３５の背面側と第１のプレートのベース３０１の間に第１の蒸気室Ｓ３１が設けられ、雌型２５の背面側と第２のプレート２１の間に第２の蒸気室Ｓ２１が設けられており、雄型３５の正面側と雌型２５の正面側とで形成される成形空間（キャビティ）内に発泡性樹脂を充填し、第１の蒸気室Ｓ３１と第２の蒸気室Ｓ２１に過熱蒸気を送ることでキャビティＳ１において発泡性樹脂を加熱融着させて樹脂成形品２００を成形する（図２、図６）。 The mold apparatus 1 of the present embodiment has a configuration in which a first plate 3 and a second plate 2 are arranged to face each other and perform mold opening and closing operations. A base 301 is attached and fixed to the frame 31 of the first plate 3, and a male die 35 is attached and fixed to the base 301. A female die 25 is attached and fixed to the frame 21 of the second plate 2 ( 2 and 6). A first steam chamber S31 is provided between the back side of the male die 35 and the base 301 of the first plate, and a second steam chamber S21 is provided between the back side of the female die 25 and the second plate 21. And a foaming resin is filled in a molding space (cavity) formed by the front side of the male die 35 and the front side of the female die 25, and the first steam chamber S31 and the second steam chamber are filled. By sending superheated steam to S21, the foamable resin is heated and fused in the cavity S1 to mold the resin molded product 200 (FIGS. 2 and 6).
本実施形態では、第１のプレートのベース３０１はスリットが形成され、当該スリットに合わせて流路３０４が設けられており、２つの雄型３５に跨って直線状の流路３０４が配されている（図２、図４）。そして、前記流路３０４は開渠となっており、過熱蒸気を送る流路とドレンを排出する流路を兼用している。
図１〜図６に示す例では、第１のプレート３には第１の蒸気室Ｓ３１に過熱蒸気を送るための管３０５が流路３０４と連結されており、当該管３０５からドレンが排出される構成となっている。符号３０６は水冷配管である。そして、第２のプレート２には前記発泡性樹脂を充填する充填ノズル２０７と第２の蒸気室Ｓ２１に過熱蒸気を送るための管２０５が配されており、図示しない排水管によってドレンが排出される。符号２０６は水冷配管である。なお、この例に限られるものではなく、蒸気管と排水管を別個独立して配する場合がある。
また、充填ノズル２０７は用役ノズルとなっており、炭化水素ガスなどのガスを注入するためにも用いられる。そして、雄型３５と雌型２５には、それぞれベントホールが形成されている。また、前記第２のプレート２１には成形された樹脂（樹脂成形品）２００を取り出すためのエジェクト機構（エジェクトピン２０８）が備わっている（図２）。
In this embodiment, the base 301 of the first plate is formed with a slit, and a flow path 304 is provided in accordance with the slit, and a linear flow path 304 is disposed across the two male molds 35. (FIGS. 2 and 4). The flow path 304 is open and serves as both a flow path for sending superheated steam and a flow path for discharging drain.
In the example shown in FIGS. 1 to 6, a pipe 305 for sending superheated steam to the first steam chamber S <b> 31 is connected to the flow path 304 in the first plate 3, and drainage is discharged from the pipe 305. It is the composition which becomes. Reference numeral 306 denotes a water cooling pipe. The second plate 2 is provided with a filling nozzle 207 for filling the foamable resin and a pipe 205 for sending superheated steam to the second steam chamber S21. Drain is discharged by a drain pipe (not shown). The Reference numeral 206 denotes a water-cooled pipe. In addition, it is not restricted to this example, A steam pipe and a drain pipe may be separately arranged separately.
The filling nozzle 207 is a service nozzle and is also used for injecting a gas such as a hydrocarbon gas. A vent hole is formed in each of the male mold 35 and the female mold 25. Further, the second plate 21 is provided with an eject mechanism (eject pin 208) for taking out the molded resin (resin molded product) 200 (FIG. 2).
図６（ａ）は第２のプレート２を示しており、図６（ｂ）は発泡スチロール容器２００を示しており、図６（ｃ）は第１のプレート３を示している。
本実施形態によれば、複数の雄型３５，３５に跨って過熱蒸気を供給する流路３０４が配されているので、流体回路が単純化され、雄型側の蒸気室（第１の蒸気室）Ｓ３１を小さくして金型の加熱を容易とし成形サイクル時間を短くできる。図６（ｃ）の例では、第１の蒸気室Ｓ３１の容積は雄型３５の容積に近い大きさまで極力小さくなっている。金型装置１は、例えば、魚箱２００を発泡スチロールで成形する（図６（ｂ））。
6A shows the second plate 2, FIG. 6B shows the expanded polystyrene container 200, and FIG. 6C shows the first plate 3.
According to the present embodiment, since the flow path 304 for supplying superheated steam is disposed across the plurality of male molds 35, 35, the fluid circuit is simplified, and the steam chamber (first steam) on the male mold side is simplified. Chamber) S31 can be reduced to facilitate heating of the mold and shorten the molding cycle time. In the example of FIG. 6C, the volume of the first steam chamber S <b> 31 is as small as possible close to the volume of the male mold 35. The mold apparatus 1 forms, for example, the fish box 200 with foamed polystyrene (FIG. 6B).
本実施形態によれば、過熱蒸気を送る流路とドレンを排出する流路がひとつの流路３０４で済むため、より単純な構造となる（図２〜図４）。そして、流路３０４が開渠となっていることで、過熱蒸気を第２の蒸気室内に放出し易く、かつ、ドレンを機外に排出し易い構成となる。 According to the present embodiment, the flow path for sending the superheated steam and the flow path for discharging the drain need only be one flow path 304, so that the structure is simpler (FIGS. 2 to 4). And since the flow path 304 is open, it becomes the structure which is easy to discharge | release superheated steam in a 2nd steam chamber, and is easy to discharge | emit drain to the exterior.
第１のプレートのフレーム３１は鉄系金属にアルミニウム溶射しており、これにより、強度や剛性に優れ、加熱と冷却が円滑になされることとなる（図２）。図２に示す符号２１０１、３１０１、３１０２は軽量化及び熱容量を小さくするための肉盗み（フレームの切除部分）を示している。 The frame 31 of the first plate is sprayed with aluminum on an iron-based metal, thereby being excellent in strength and rigidity, and being smoothly heated and cooled (FIG. 2). Reference numerals 2101, 3101, and 3102 shown in FIG. 2 indicate meat theft (a cut portion of the frame) for reducing the weight and reducing the heat capacity.
雄型３５と雌型２５は、例えばダイキャストで製造される。雄型３５と雌型２５は、蒸気圧、油圧、空圧、電動機等の動力によって型閉じ型締めして樹脂注型し樹脂成形後に、型開きする構成となっているおり、既知の機構が適用できる。 The male mold 35 and the female mold 25 are manufactured by die casting, for example. The male mold 35 and the female mold 25 are configured so that the mold is closed by clamping with a power of steam pressure, hydraulic pressure, pneumatic pressure, electric motor or the like, and the mold is opened after resin molding. Applicable.
本実施形態によれば、単純な構造でありながら、蒸気室を小さくして金型の加熱を容易とし成形サイクル時間を短くできる、新規な省エネ構造の樹脂成形用金型装置となる。よって、均質な発泡樹脂成形品を省エネルギーで高効率で製造することができる。 According to this embodiment, the resin molding die apparatus having a novel energy-saving structure that has a simple structure but can reduce the steam chamber to easily heat the die and shorten the molding cycle time. Therefore, a homogeneous foamed resin molded product can be manufactured with energy saving and high efficiency.
以上、本発明は、上述した実施の形態に限定されるものではない。発泡樹脂成形品の取個数は４個のみならず、２個、６個、８個など任意に設定でき、同一のプレートにおける型交換も容易な構造となっている。このように、本発明は、その趣旨を逸脱しない範囲で適宜変更が可能であることは言うまでもない。 As described above, the present invention is not limited to the embodiment described above. The number of foamed resin molded products can be set arbitrarily as well as four, two, six, eight, etc., and the mold can be easily exchanged on the same plate. Thus, it goes without saying that the present invention can be modified as appropriate without departing from the spirit of the present invention.
１ 本発明の樹脂成形用金型装置、
２ 第２のプレート、Ｓ２１ 第２の蒸気室、
３ 第１のプレート、Ｓ３１ 第１の蒸気室、
２５ 雌型、
３５ 雄型、
３０１ ベース、
３０４ 流路（開渠）、
２００ 樹脂成形品（発泡スチロール容器）
1. Mold apparatus for resin molding of the present invention,
2 second plate, S21 second steam chamber,
3 1st plate, S31 1st steam chamber,
25 female,
35 male,
301 base,
304 channel (opening),
200 Resin molded product (Styrofoam container)
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