JP2005034898A - Diecast molding apparatus for manufacturing diecast product - Google Patents

Diecast molding apparatus for manufacturing diecast product Download PDF

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JP2005034898A
JP2005034898A JP2003276762A JP2003276762A JP2005034898A JP 2005034898 A JP2005034898 A JP 2005034898A JP 2003276762 A JP2003276762 A JP 2003276762A JP 2003276762 A JP2003276762 A JP 2003276762A JP 2005034898 A JP2005034898 A JP 2005034898A
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slide mold
mold
casting
frame
forming
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JP3904539B2 (en
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Masao Oba
正男 大場
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MAKABE ALUMINUM KK
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MAKABE ALUMINUM KK
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Priority to JP2003276762A priority Critical patent/JP3904539B2/en
Priority to CNB2004800205364A priority patent/CN100345648C/en
Priority to PCT/JP2004/002845 priority patent/WO2005007322A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies

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  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a diecast molding apparatus which can form a recessed or projected part even at the corner by using slide molds. <P>SOLUTION: A room is generated by moving a slide mold 80 for forming a separation wall to an arrow (b) direction shown in the figure by a hydraulic cylinder 82, and as a result a space is secured for a slide mold 70 for forming a corner part to move to an arrow (a) direction. Then, the slide mold 70 for forming the corner part is moved into the secured space by a hydraulic cylinder 72, which releases an engagement between a projected part formed on the slide mold 70 for forming the corner part and the recessed or projected part 50 formed on a frame-type product and enables a movable mold 30 to move. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、枠状の鋳物を形成するダイキャスト鋳物製造用のダイキャスト成形装置に関する。   The present invention relates to a die-cast molding apparatus for producing a die-cast casting that forms a frame-shaped casting.

一般に、鋳造とは、アルミニウムなどの溶融金属を砂などで作った鋳型に流し込み製品を作る方法をいう。
この鋳造で用いる金属であるアルミニウムは、鉄に比較して約３分の１の重さであり、伝熱性、耐食性、加工性に優れている。具体的には、清涼飲料水やビールの缶、自動車用のアルミホイール、新幹線のボディー、鍋、フライパンおよびやかんなどの台所製品、窓枠（サッシ）等に用いられている。
一方、ダイキャストは、寸法精度が非常に高く、後の工程で加工を減らすことができ大量生産に適した製法である。さらに、このダイキャストは、製品の表面が滑らかで優れているためメッキや塗装等の表面処理が容易であるとの特徴を有している。 In general, casting refers to a method of making a product by pouring molten metal such as aluminum into a mold made of sand or the like.
Aluminum, which is a metal used in this casting, is about one-third the weight of iron, and is excellent in heat transfer, corrosion resistance, and workability. Specifically, it is used for soft drinks and beer cans, aluminum wheels for automobiles, Shinkansen bodies, kitchen products such as pots, pans and kettles, window frames (sashes) and the like.
On the other hand, die casting has a very high dimensional accuracy and can reduce processing in a later process and is a manufacturing method suitable for mass production. Furthermore, this die-cast has a feature that the surface of the product is smooth and excellent, and thus surface treatment such as plating and painting is easy.

ところで、従来のダイキャスト鋳造において、枠状の製品（例えば、サッシ、額縁）の内側に凹凸面を形成するには、スライド金型を用いて製造するのが通例であった。この場合、図５に示すように、凹凸面を枠状製品の角部から、十分な距離、すなわち角部から隔たった箇所に形成する場合には問題はないが、図６に示すような枠状の製品の角部に凹凸部を形成する場合は問題が生じる。
この問題を詳述すると、アルミ製品を形成した後、可動型３０を移動して製品を取り出すとき、凹凸部を形成するためのスライド金型（中子）７１を後退させるためのスペース４０が必要となる。このスペース４０がないとスライド金型（中子）７１の突起部と枠状製品に形成した凹部が係合したままとなり、可動型３０を移動させることができないからである。
そして、図６に示すように角部に凹凸を形成しようとするとこのスライド金型（中子）７１が後退するスペース４０に溶湯（アルミニウム）が進入してしまう（図中斜線で示してある）。 By the way, in conventional die casting, in order to form an uneven surface inside a frame-shaped product (for example, a sash or a frame), it is usual to manufacture using a slide mold. In this case, as shown in FIG. 5, there is no problem when the uneven surface is formed at a sufficient distance from the corner of the frame-shaped product, that is, at a place separated from the corner, but the frame as shown in FIG. A problem arises when uneven portions are formed at the corners of the shaped product.
To describe this problem in detail, after forming the aluminum product, when the movable mold 30 is moved and the product is taken out, a space 40 for retreating the slide mold (core) 71 for forming the uneven portion is necessary. It becomes. This is because if the space 40 is not present, the projection of the slide mold (core) 71 and the recess formed in the frame-shaped product remain engaged, and the movable mold 30 cannot be moved.
Then, as shown in FIG. 6, if an attempt is made to form irregularities at the corners, the molten metal (aluminum) enters the space 40 in which the slide mold (core) 71 retreats (shown by hatching in the figure). .

そのため、鋳造工程の製品取出し時、スライド金型（中子）７１が後退するためのスペース４０に溶湯が逸出進入しないための隔壁を形成可能であることが不可欠な要件である。凹凸面が枠状の製品の角部に密接している場合、製品角部の内側の一面のみでなく、隣接した他面の一部もスライド金型（中子）７１によって形成せざるを得ず、隔壁を形成することが技術的に不可能であった。そのため、このような工法は不可能とされ、製品鋳造後機械加工により凹凸部を形成するか、あらかじめ凹凸部を有する別部品を取付ける等の手段によるのが常識的な工法であった。
しかし、これは、コスト・均一性等に関してスライド金型を用いたダイキャスト一体鋳造品に劣るため、改善が望まれていた。
そこで、本発明の目的は、スライド金型を用いて角部にも凹凸部を形成できるダイキャスト成形装置を提供することである。 Therefore, it is an indispensable requirement to be able to form a partition wall for preventing the molten metal from escaping and entering the space 40 for the slide mold (core) 71 to retreat during product removal in the casting process. When the uneven surface is in close contact with the corner of the frame-shaped product, not only one surface inside the product corner but also a part of the other adjacent surface must be formed by the slide mold (core) 71. Therefore, it was technically impossible to form a partition wall. For this reason, such a construction method is impossible, and it has been a common sense method to form an uneven portion by machining after product casting or to attach a separate part having the uneven portion in advance.
However, since this is inferior to a die-cast integrally cast product using a slide mold in terms of cost, uniformity, etc., improvement has been desired.
Then, the objective of this invention is providing the die-cast shaping | molding apparatus which can form an uneven | corrugated | grooved part also in a corner | angular part using a slide metal mold | die.

請求項１記載の発明では、ダイキャスト鋳物製造用のダイキャスト成形装置において、一方向に開閉動可能で、鋳物の外殻を形成するためのキャビティを形成する１対の金型と、この金型で枠状の鋳物を形成する際、枠状のキャビティにより形成される枠状鋳物の内側に凹凸部を形成するための突起部を有する第１のスライド金型と、この第１のスライド金型が鋳物成型を完了し、突起部と枠状鋳物の内側に形成された凹凸部とが離脱する方向へこの第１のスライド金型を駆動させる第１の駆動装置と、前記第１のスライド金型が移動する空間を充填し、且つこの空間に枠状のキャビティに注入された溶湯が進入することを防止する隔壁を形成する第２のスライド金型と、この第２のスライド金型を前記第１のスライド金型と交差する方向へ駆動する第２駆動装置とを、備え、鋳物形成完了後、前記第２の駆動手段により前記第２のスライド金型を待避させ、この第２のスライド金型待避後の空間に前記第１の駆動手段により、前記第１のスライド金型を移動させ、前記１対の金型開放を可能としたことにより、前記目的を達成する。   According to the first aspect of the present invention, in a die cast molding apparatus for producing a die cast product, a pair of molds that can be opened and closed in one direction and that form a cavity for forming an outer shell of the cast product, and the mold When forming a frame-shaped casting with a mold, a first slide mold having a projection for forming an uneven portion inside the frame-shaped casting formed by a frame-shaped cavity, and the first slide mold A first driving device for driving the first slide mold in a direction in which the mold completes casting, and the protrusion and the concavo-convex portion formed inside the frame-shaped casting are separated; and the first slide A second slide mold that fills a space in which the mold moves and prevents a molten metal injected into the frame-shaped cavity from entering the space; and the second slide mold In a direction intersecting with the first slide mold A second drive device that moves, and after the casting is formed, the second drive means is retracted by the second drive means, and the first slide mold is retracted in the space after the first slide mold is retracted. The object is achieved by moving the first slide mold by the driving means and enabling the pair of molds to be opened.

請求項２記載の発明では、請求項１記載の発明において、前記第１の駆動手段および第２の駆動手段に油圧シリンダを用いたことを特徴とする。   According to a second aspect of the present invention, in the first aspect of the present invention, a hydraulic cylinder is used for the first driving means and the second driving means.

請求項１および請求項２記載の発明では枠状製品の角部であっても、製品鋳造後機械加工によらずダイキャスト成形装置により、凹凸部などの形状を設けることができる。   According to the first and second aspects of the present invention, even the corner portion of the frame-shaped product can be provided with a shape such as a concavo-convex portion by a die-cast molding apparatus regardless of machining after product casting.

以下、本発明の好適な実施の形態を図１ないし図４を参照して、詳細に説明する。
図１は、ダイキャスト装置の外観を示した斜視図である。このダイキャスト装置は、固定型１０と可動型３０とからなり、型を閉じた状態で内部に設けられたキャビティ２０に溶湯を送り込み、製品を成形する。送り込むアルミニウムの溶湯は６８０℃から７００℃であり、これを高圧でキャビティ２０に送り込むことによりアルミ製品の成形を行う。
成形後、可動型３０を動かして型を開くことにより製品を取り出し、再度型を閉じて順次、次の成形を行うようになっている。 Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a perspective view showing an appearance of a die casting apparatus. This die casting apparatus includes a fixed mold 10 and a movable mold 30, and in a state where the mold is closed, the molten metal is fed into a cavity 20 provided inside to mold a product. The aluminum melt to be fed is 680 ° C. to 700 ° C., and the aluminum product is molded by feeding it into the cavity 20 at a high pressure.
After molding, the movable mold 30 is moved and the mold is opened to take out the product, the mold is closed again, and the next molding is sequentially performed.

図２は、本実施形態に係るダイキャスト装置の固定型１０の平面図であり、図３は、本実施形態に係るダイキャスト装置の可動型３０および固定型１０の側面図である。この例で、ダイキャスト装置で枠状製品を成形することを前提に、枠状製品の角部付近に凹凸部５０を形成している。この凹凸部５０を形成するために突起部を備えた角部形成用スライド金型（中子）７０が油圧シリンダ７２により図中の矢印ａ方向に移動可能の設置されている。
また、この角部形成用スライド金型７０が矢印ａ方向へ移動する際の空間を埋める態様で隔壁形成用スライド金型８０が設置されている。この隔壁形成用スライド金型８０は、油圧シリンダ８２により、図中の矢印ｂ方向に移動可能となっている。従って、この例では、角部形成用スライド金型７０と隔壁形成用スライド金型８０とは、直交する方向に移動するようになっているが、必ずしも直交する必要はなく、互いに交差する方向であればよい。 FIG. 2 is a plan view of the fixed mold 10 of the die cast apparatus according to the present embodiment, and FIG. 3 is a side view of the movable mold 30 and the fixed mold 10 of the die cast apparatus according to the present embodiment. In this example, the concavo-convex portion 50 is formed in the vicinity of the corner of the frame-shaped product on the assumption that the frame-shaped product is molded by a die casting apparatus. In order to form the concavo-convex portion 50, a corner forming slide mold (core) 70 provided with a protrusion is installed by a hydraulic cylinder 72 so as to be movable in the direction of arrow a in the figure.
Further, the partition-forming slide mold 80 is installed so as to fill a space when the corner-forming slide mold 70 moves in the arrow a direction. The partition-forming slide mold 80 can be moved in the direction of arrow b in the figure by a hydraulic cylinder 82. Therefore, in this example, the corner-forming slide mold 70 and the partition-forming slide mold 80 move in a direction orthogonal to each other, but they do not necessarily need to be orthogonal and in a direction crossing each other. I just need it.

この隔壁形成用スライド金型８０は、枠状製品を形成するために、枠状キャビティ２０に溶湯を高圧で注入した際、角部形成用スライド金型７０の移動する空間に溶湯が進入しないように防護する働きをする。
アルミ成形が完了すると、可動型３０を移動させて凹凸を形成された枠状製品を取り出すのであるが、角部形成用スライド金型７０に形成された突起部と枠状製品に形成された凹凸部５０が係合しているので、可動型３０を動かすことができない。
そこで、図４に示すように、隔壁形成用スライド金型８０を油圧シリンダ８２により、図中の矢印ｂ方向に移動させることにより、結果として、そこに空間を生じさせ、角部形成用スライド金型７０が矢印ａ方向へ移動するためのスペースを確保する。そして、その確保されたスペースに角部形成用スライド金型７０を油圧シリンダ７２により移動させ、このとき、角部形成用スライド金型７０に形成された突起部と枠状製品に形成された凹凸部５０との係合が外れ、可動型３０が移動可能となる。 The partition-forming slide mold 80 prevents the molten metal from entering the space in which the corner-forming slide mold 70 moves when molten metal is injected into the frame-shaped cavity 20 at a high pressure to form a frame-shaped product. Work to protect.
When the aluminum molding is completed, the movable mold 30 is moved to take out the frame-shaped product on which the irregularities are formed, but the projections formed on the corner-forming slide mold 70 and the irregularities formed on the frame-shaped product. Since the part 50 is engaged, the movable mold 30 cannot be moved.
Therefore, as shown in FIG. 4, the partition-forming slide mold 80 is moved by the hydraulic cylinder 82 in the direction of the arrow b in the figure, resulting in a space there and the corner-forming slide mold. Space is secured for the mold 70 to move in the direction of arrow a. Then, the corner-forming slide mold 70 is moved to the secured space by the hydraulic cylinder 72, and at this time, the protrusions formed on the corner-forming slide mold 70 and the irregularities formed on the frame-shaped product. The engagement with the portion 50 is released, and the movable mold 30 can be moved.

上記例では、角部形成用スライド金型７０および隔壁形成用スライド金型８０は、共に固定型１０に設置されているが、その機能に支障の無い限り、その何れか、または双方ともを可動型３０に装置することも可能である。
また、角部形成用スライド金型７０および隔壁形成用スライド金型８０は、１対のみに限定されるものではなく、必要に応じて複数対設けることもできる。
角部形成用スライド金型７０および隔壁形成用スライド金型８０の駆動手段は、この例に示した油圧シリンダに限定されるものではなく、任意に選択可能である。例えば、空圧シリンダ、サーボモータなどによる駆動が可能である。 In the above example, the corner-forming slide mold 70 and the partition-forming slide mold 80 are both installed in the fixed mold 10, but either or both of them can be moved as long as their functions are not hindered. It is also possible to install in the mold 30.
Further, the corner portion forming slide mold 70 and the partition wall forming slide mold 80 are not limited to one pair, and a plurality of pairs may be provided as necessary.
The driving means for the corner forming slide mold 70 and the partition forming slide mold 80 is not limited to the hydraulic cylinder shown in this example, and can be arbitrarily selected. For example, it can be driven by a pneumatic cylinder, a servo motor, or the like.

この実施例で説明した枠状のダイキャスト製品とは、必ずしも長方形状（枠状）のものである必然性は無く、任意の形状が想定可能である。例えば、凸型、星形、多角形に適用可能である。
また、前記隔壁用スライド金型７０は、単に溶湯逸出の防止のみではなく、枠状製品内面の、そのスライド金型に臨んだ部分を形成すると共に、溶湯射出時に角部内面形成用スライド金型の後退を防止するクサビとしても機能している。
なお、隔壁用スライド金型は、角部内面形成用スライド金型移動に要するスペース全てを埋め尽くす形状であることは必ずしも要求されず、必要あれば上述の機能が害されない範囲で、適宜肉ヌスミを設けても良い。 The frame-shaped die cast product described in this embodiment does not necessarily have a rectangular shape (frame shape), and an arbitrary shape can be assumed. For example, it can be applied to convex shapes, star shapes, and polygons.
The partition wall slide mold 70 not only prevents the molten metal from escaping, but also forms a portion of the inner surface of the frame-shaped product facing the slide mold, and at the time of molten metal injection, a slide mold for forming the corner inner surface. It also functions as a wedge to prevent mold retreat.
Note that the partition wall slide mold is not necessarily required to have a shape that fills all the space required for the movement of the corner inner surface formation slide mold, and if necessary, as long as the above-described functions are not impaired. May be provided.

ダイキャスト装置の外観を示した斜視図であり、固定型と可動型が開いた状態を示した図である。It is the perspective view which showed the external appearance of the die-cast apparatus, and is the figure which showed the state which the fixed mold | type and the movable mold | type opened. 本実施形態に係るダイキャスト装置の平面図を示した図である。It is the figure which showed the top view of the die-cast apparatus which concerns on this embodiment. 本実施形態に係るダイキャスト装置の側面図を示した図である。It is the figure which showed the side view of the die-cast apparatus which concerns on this embodiment. 本実施形態に係るダイキャスト装置の動きを説明するための側面図である。It is a side view for demonstrating the motion of the die-cast apparatus which concerns on this embodiment. 従来の係るダイキャスト装置により枠状製品に凹凸部を形成する例を説明する平面図と側面図を示した図である。It is the figure which showed the top view and side view explaining the example which forms an uneven | corrugated | grooved part in a frame-shaped product with the conventional die-cast apparatus which concerns. 従来の係るダイキャスト装置により枠状製品の角部に凹凸部を形成する例を説明する側面図である。It is a side view explaining the example which forms an uneven | corrugated | grooved part in the corner | angular part of a frame-shaped product with the conventional die-cast apparatus.

符号の説明Explanation of symbols

１０ 固定型
２０ 枠状キャビティ
３０ 可動型
４０ スペース
５０ 凹凸部
７０ 角部形成用スライド金型
７１ スライド金型
７２ 油圧シリンダ
８０ 隔壁形成用スライド金型
８２ 油圧シリンダ DESCRIPTION OF SYMBOLS 10 Fixed type | mold 20 Frame-shaped cavity 30 Movable type | mold 40 Space 50 Uneven | corrugated | grooved part 70 Sliding mold 71 for corner | angular part formation Slide mold 72 Hydraulic cylinder 80 Slide mold 82 for bulkhead formation Hydraulic cylinder

Claims (2)

ダイキャスト鋳物製造用のダイキャスト成形装置において、
一方向に開閉動可能で、鋳物の外殻を形成するためのキャビティを形成する１対の金型と、
この金型で枠状の鋳物を形成する際、枠状のキャビティにより形成される枠状鋳物の内側に凹凸部を形成するための突起部を有する第１のスライド金型と、
この第１のスライド金型が鋳物成型を完了し、突起部と枠状鋳物の内側に形成された凹凸部とが離脱する方向へこの第１のスライド金型を駆動させる第１の駆動装置と、
前記第１のスライド金型が移動する空間を充填し、且つこの空間に枠状のキャビティに注入された溶湯が進入することを防止する隔壁を形成する第２のスライド金型と、
この第２のスライド金型を前記第１のスライド金型と交差する方向へ駆動する第２駆動装置とを、備え、
鋳物形成完了後、前記第２の駆動手段により前記第２のスライド金型を待避させ、この第２のスライド金型待避後の空間に前記第１の駆動手段により、前記第１のスライド金型を移動させ、前記１対の金型開放を可能としたことを特徴とするダイキャスト鋳物製造用のダイキャスト成形装置。 In die casting equipment for die casting production,
A pair of molds capable of opening and closing in one direction and forming a cavity for forming a casting shell;
When forming a frame-shaped casting with this mold, a first slide mold having a protrusion for forming an uneven portion inside the frame-shaped casting formed by the frame-shaped cavity;
A first drive device for driving the first slide mold in a direction in which the first slide mold completes casting and the projection and the concavo-convex part formed inside the frame-shaped casting are separated from each other; ,
A second slide mold that fills a space in which the first slide mold moves and forms a partition wall that prevents the molten metal injected into the frame-shaped cavity from entering the space;
A second drive device for driving the second slide mold in a direction intersecting the first slide mold,
After completion of casting, the second slide mold is retracted by the second drive means, and the first slide mold is saved by the first drive means in the space after the second slide mold is retracted. A die-cast molding apparatus for producing a die-casting product, wherein the pair of molds can be opened. 前記第１の駆動手段および第２の駆動手段に油圧シリンダを用いたことを特徴とする請求項１記載のダイキャスト鋳物製造用のダイキャスト成形装置。   2. The die cast molding apparatus for producing a die cast casting according to claim 1, wherein a hydraulic cylinder is used for the first drive means and the second drive means.
JP2003276762A 2003-07-18 2003-07-18 Die cast molding equipment for die casting production Expired - Fee Related JP3904539B2 (en)

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CNB2004800205364A CN100345648C (en) 2003-07-18 2004-03-05 Diecasting forming apparatus for manufacturing diecast metal
PCT/JP2004/002845 WO2005007322A1 (en) 2003-07-18 2004-03-05 Diecasting forming apparatus for manufacturing diecast metal

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Cited By (1)

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JP2006232166A (en) * 2005-02-25 2006-09-07 Yamaha Motor Co Ltd Seat frame for motorcycle and motorcycle

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CN102794873A (en) * 2011-05-24 2012-11-28 苏州春兴精工股份有限公司 Mold for thin-wall parts and large-cavity parts
CN104259385B (en) * 2014-10-14 2016-04-27 赵占水 The coated sand technology preparation method of middle Huading pot
JP6434621B2 (en) * 2015-07-01 2018-12-05 本田技研工業株式会社 Casting equipment

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JPH0740395A (en) * 1993-05-26 1995-02-10 Konica Corp Molding device
JPH09308956A (en) * 1996-05-20 1997-12-02 U Mold:Kk Die having slide core and clamping method for die
JP3350900B2 (en) * 1999-09-10 2002-11-25 古河電気工業株式会社 Apparatus and method for manufacturing heat sink

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JP2006232166A (en) * 2005-02-25 2006-09-07 Yamaha Motor Co Ltd Seat frame for motorcycle and motorcycle
JP4562549B2 (en) * 2005-02-25 2010-10-13 ヤマハ発動機株式会社 Motorcycle seat frame and motorcycle

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