JPS6293056A - Product ejecting implement for die casting - Google Patents
Product ejecting implement for die castingInfo
- Publication number
- JPS6293056A JPS6293056A JP23093985A JP23093985A JPS6293056A JP S6293056 A JPS6293056 A JP S6293056A JP 23093985 A JP23093985 A JP 23093985A JP 23093985 A JP23093985 A JP 23093985A JP S6293056 A JPS6293056 A JP S6293056A
- Authority
- JP
- Japan
- Prior art keywords
- extrusion
- cooling
- ejector pins
- plate
- passage
- 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
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、金型鋳造に用いる製品の押出し器具に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for extruding products used in mold casting.
従来の技術
従来、低圧鋳造機によりアルミホイールなどを鋳造する
場合、保持炉に保持されたアルミ溶湯の自由表面に圧縮
空気を印加することにより、溶湯はストーク内を上昇し
、上型、下型、横型の3つの金型にて形成される金型製
品部に注入される。Conventional technology Conventionally, when casting aluminum wheels etc. using a low-pressure casting machine, compressed air is applied to the free surface of the molten aluminum held in a holding furnace, and the molten metal rises in the stoke, forming an upper mold and a lower mold. , is injected into the mold product part formed by three horizontal molds.
鋳造後、製品を取出すには、下型は低圧鋳造機の固定プ
ラテンに固定されたままの状態でまず横型を開き、次に
上型が取付けである可動プラテンを支柱を介して摺動さ
せることにより上昇させると、製品は上型に取付けられ
たまま上昇し、所定の距離だけ上昇すると、鋳造機に設
けた押出し板に固定された押出しピンが製品に当接し、
製品を上型から押出して取外す。After casting, to remove the product, first open the horizontal mold while the lower mold remains fixed to the fixed platen of the low-pressure casting machine, and then slide the movable platen to which the upper mold is attached via the support. When raised, the product rises while attached to the upper die, and when it rises a predetermined distance, an extrusion pin fixed to an extrusion plate installed in the casting machine comes into contact with the product.
The product is extruded from the upper mold and removed.
この場合、押出しピンは上型に設けたブツシュ孔内を摺
動するが、従来は押出しピンの冷却は行なっていなかっ
た。In this case, the ejector pin slides in a bush hole provided in the upper mold, but conventionally the ejector pin was not cooled.
発明が解決しようとする問題点 金型に溶湯が直接当たる部分は型温が非常に高くなる。The problem that the invention aims to solve The mold temperature becomes extremely high in the areas where the molten metal comes into direct contact with the mold.
この部ヅ)を押出しピンにて押出す時は、焼付き、アル
ミによる溶損、アルミの付着、溶湯のさし込みなどの現
象が生じて押出しピンの摺動かにふくなる。押出しピン
が動かないと製品押出し時に製品が変形し、また、サイ
クルタイムが伸びて型温の低下、型温のバラツキによる
鋳造条件が変わり、不良が発生するという問題点があっ
た。When extruding this part with an extrusion pin, phenomena such as seizure, erosion due to aluminum, adhesion of aluminum, and insertion of molten metal occur, and the extrusion pin slides. If the ejector pin does not move, the product will be deformed during extrusion, and the cycle time will be extended, the mold temperature will drop, and casting conditions will change due to variations in mold temperature, resulting in defects.
問題点を解決するための手段
上記問題点を解決するために本発明は、押出しピンの内
部に長手方向に孔を設け、該孔の内径より僅かに、小さ
い外径有する冷却パイプを前記孔に挿入し、前記押出し
ピンを複数個押出し保持仮に取付(プ、押出し保持板上
に押出し板を介して冷却板を取付け、該冷却板に設けた
吸入口より複数個の押出しピンの冷却パイプに連通ずる
通路を前記冷却板、押出し板および押出し保持板内に形
成し、吸入口より吸入した冷却流体を前記通路を経て冷
却パイプ内を通過させ、さらに押出しピンの内部に設け
た孔の内面と冷却パイプ内外面との間隙を通過させ、複
数個の押出しピンの内部に垂直方向に設けた排出1コと
連通ずる押出し保持板内部に形成した通路および排出口
より排出させる金型鋳造用製品押出し器具である。Means for Solving the Problems In order to solve the above problems, the present invention provides a longitudinal hole inside the push-out pin, and a cooling pipe having an outer diameter slightly smaller than the inner diameter of the hole. Insert the ejector pins, extrude and hold a plurality of extrusion pins, and temporarily attach the ejector pins.A cooling plate is installed on the extrusion holding plate via the extrusion plate, and the cooling pipes of the plurality of extrusion pins are connected from the inlet provided on the cooling plate. A passageway is formed in the cooling plate, the extrusion plate, and the extrusion holding plate, and the cooling fluid sucked in from the suction port is passed through the cooling pipe through the passageway, and further communicates with the inner surface of the hole provided inside the extrusion pin. A product extrusion tool for mold casting that allows the product to pass through the gap between the inner and outer surfaces of the pipe and discharge from a passage and outlet formed inside an extrusion holding plate that communicates with a discharge hole provided vertically inside a plurality of extrusion pins. It is.
作 用
上述のように、冷却流体を前記吸入口より吸入させ、途
中の通路を経て押出しピンの内部を通過させ、途中の通
路を経て排出口より排出さゼで、複数個の押出しピンを
強制冷却することができる。Function: As mentioned above, the cooling fluid is sucked in through the suction port, passes through the inside of the ejector pin through the intermediate passage, and is discharged from the outlet through the intermediate passage, thereby forcing the plurality of extruder pins. Can be cooled.
実施例 以下、本発明の実施例を図面に基づいて説明する。Example Embodiments of the present invention will be described below based on the drawings.
第1図および第2図はそれぞれ金型鋳造用製品押出し器
具の押出しピンの構造を示す正面図と側面図、第3図は
金型鋳造用製品押出し器具の取付は状態を示す要部断面
図、第4図は第3図の平面図である。Figures 1 and 2 are a front view and a side view, respectively, showing the structure of the ejecting pin of the product extrusion device for mold casting, and Figure 3 is a sectional view of the main parts showing the installation state of the product extrusion device for mold casting. , FIG. 4 is a plan view of FIG. 3.
第1図および第2図において、押出しピン1の内部の長
手方向にねじ孔2および孔3を設ける。In FIGS. 1 and 2, a screw hole 2 and a hole 3 are provided in the longitudinal direction of the push-out pin 1.
また、前記押出しピン1の端部にねじ孔2と垂直に貫通
した排出口4を設ける。前記孔3の内径よりやや小さい
外径を有するスチール製の冷却パイプ5の先端に、冷却
パイプ5と同一内径を有するねじ付ナツト6をロー付け
し、ねじ付ナツト6のねじ部を前記ねじ孔2にねじ込ん
で、冷却パイプ5を孔2に挿入する。押出しピンの入口
1aより空気を入れると空気は冷却パイプ5内をつき抜
けて孔3の内面と冷却パイプ5の外面との間隙を通って
排出口4が排出される。なお、押出しピンの材質は8K
O61で表面にイオン窒化コーティングが施しである。Further, a discharge port 4 is provided at the end of the extrusion pin 1, passing through the screw hole 2 perpendicularly. A threaded nut 6 having the same inner diameter as the cooling pipe 5 is brazed to the tip of a steel cooling pipe 5 having an outer diameter slightly smaller than the inner diameter of the hole 3, and the threaded portion of the threaded nut 6 is inserted into the threaded hole. 2 and insert the cooling pipe 5 into the hole 2. When air is introduced through the inlet 1a of the push-out pin, the air passes through the inside of the cooling pipe 5, passes through the gap between the inner surface of the hole 3 and the outer surface of the cooling pipe 5, and is discharged from the outlet 4. The material of the extrusion pin is 8K.
The surface is coated with ion nitride O61.
第3図および第4図において、7は上型、8は上型に嵌
入したブツシュ、9は下型、10は横型、11は製品で
ある。冷却パイプ5を挿入した押出しピン1を複数個押
出し保持板12に穴をあけて取付ける。なお、押出し板
12には、押出しピン1の排出口4と連通する通路13
が複数個設けてあり、該通路13は押出し板12に設け
たリング状の通路14を経て排出通路15につながって
いる。In FIGS. 3 and 4, 7 is an upper mold, 8 is a bushing fitted into the upper mold, 9 is a lower mold, 10 is a horizontal mold, and 11 is a product. A plurality of extrusion pins 1 with cooling pipes 5 inserted therein are attached by making holes in the extrusion holding plate 12. Note that the extrusion plate 12 has a passage 13 that communicates with the outlet 4 of the extrusion pin 1.
A plurality of passages 13 are provided, and the passages 13 are connected to a discharge passage 15 via a ring-shaped passage 14 provided in the extrusion plate 12.
押出し保持板12を押出し板16に取付け、押出し板1
6には冷却パイプ5と同一の内径の孔17を有する押出
しピン抑えコマ18が嵌入しである。押出し板16の上
に冷却板19を取付け、冷却板19の底部にはリング状
の通路20がえぐってあり、通路20は前記押出しピン
抑えコマ18の孔17と連通している。ざらに冷却板1
9に、前記通路20と連通する吸入口21を設ける。Attach the extrusion holding plate 12 to the extrusion plate 16, and press the extrusion plate 1
6 is fitted with an extrusion pin holding piece 18 having a hole 17 having the same inner diameter as the cooling pipe 5. A cooling plate 19 is mounted on the extrusion plate 16, and a ring-shaped passage 20 is hollowed out at the bottom of the cooling plate 19, and the passage 20 communicates with the hole 17 of the extrusion pin holding piece 18. Rough cooling plate 1
9 is provided with an inlet 21 communicating with the passage 20.
上記構成による金型鋳造用製品押出し器具の吸入口21
より空気を入れると、空気は通路20゜孔17を経て押
出しピン1の冷却パイプ5の中をつき汰け、押出しピン
1の先端部分にくるが、この先端部分は製品に当接する
ので高温になっており、従って熱せられた空気は、押出
しピン1の内部に設けた孔3の内面と冷却パイプ5の外
面との間隙を通って排出口41通路131通路14を経
て排出口15から排出される。Suction port 21 of product extrusion device for mold casting with the above configuration
When more air is introduced, the air passes through the passage 20° hole 17, passes through the cooling pipe 5 of the ejector pin 1, and comes to the tip of the ejector pin 1, but this tip comes into contact with the product and becomes hot. Therefore, the heated air passes through the gap between the inner surface of the hole 3 provided inside the push-out pin 1 and the outer surface of the cooling pipe 5, passes through the outlet 41, the passage 131, and the passage 14, and is discharged from the outlet 15. Ru.
上述のようにして、空気を1ケ所の吸入口から入れて1
ケ所の排出口から出すことにより、押出しピンを強制冷
却することができる。As described above, enter air from one intake port and
The ejector pin can be forcibly cooled by letting it out through the outlet at several locations.
なお、冷却媒体として空気を用いる説明をしたが、水な
どの液体でもよい。液体の方が空気よりも冷却効果が大
きいが、洩漏して溶湯に接すると爆発する恐れがあるの
で注意を要する。Note that although air is used as the cooling medium in the explanation, a liquid such as water may also be used. Liquid has a greater cooling effect than air, but care must be taken as there is a risk of explosion if it leaks and comes into contact with molten metal.
発明の効果
以上述べたように、本発明によれば、襟数個の押出しピ
ンを強制冷却することできるので、押出しピンの摺動が
スムーズになり、サイクルタイムが安定し、かつ短縮さ
れ、整備工数が減少し、さらに鋳造不良が減少する。Effects of the Invention As described above, according to the present invention, several ejector pins can be forcibly cooled, so the ejector pins slide smoothly, the cycle time is stable and shortened, and maintenance is facilitated. Man-hours are reduced, and casting defects are further reduced.
なお、本発明は、型温が局部的に^い部分、ヒケ巣など
の不良対策のため冷却したい部分、溶湯が直接当ってア
ルミの差込み、アルミの付着、焼付きなどを起す部分に
適用すると効果的である。The present invention can be applied to areas where the mold temperature is locally high, areas that need to be cooled to prevent defects such as sinkholes, areas where molten metal comes into direct contact and causes aluminum insertion, aluminum adhesion, seizure, etc. Effective.
第1図および第2図は、それぞれ金型鋳造用製品押出し
器具の押出しピンの構造を示す正面図と側面図、第3図
は金型鋳造用製品押出し器具の取付は状態を示す要部断
面図、第4図は第3図の平面図である。
1・・・押出しピン、3.17・・・孔、4.15・・
・排出口、5・・・冷却パイプ、12・・・押出し保持
板、13.14.20・・・通路、16・・・押出し板
、1つ・・・冷却板、21・・・吸入口。Figures 1 and 2 are a front view and a side view, respectively, showing the structure of the ejector pin of the product extrusion device for mold casting, and Figure 3 is a cross section of the main part showing the installation state of the product extrusion device for mold casting. FIG. 4 is a plan view of FIG. 3. 1... Push-out pin, 3.17... Hole, 4.15...
・Exhaust port, 5... Cooling pipe, 12... Extrusion holding plate, 13.14.20... Passage, 16... Extrusion plate, 1... Cooling plate, 21... Inlet .
Claims (1)
り僅かに小さい外径を有する冷却パイプを前記孔に挿入
し、前記押出しピンを複数個押出し保持板に取付け、押
出し保持板上に押出し板を介して冷却板を取付け、該冷
却板に設けた吸入口より複数個の押出しピン内の冷却パ
イプに連通する通路を前記冷却板、押出し板および押出
し保持板内に形成し、吸入口より吸入した冷却流体を前
記通路を経て冷却パイプ内を通過させ、さらに押出しピ
ンの内部に設けた孔の内面と冷却パイプの外面との間隙
を通過させ、複数個の押出しピンの内部に垂直方向に設
けた排出口と連通する押出し保持板内部に形成した通路
および排出口より排出させることを特徴とする金型鋳造
用製品押出し器具。A hole is provided in the longitudinal direction inside the extrusion pin, a cooling pipe having an outer diameter slightly smaller than the inner diameter of the hole is inserted into the hole, a plurality of the extrusion pins are attached to an extrusion holding plate, and the extrusion pin is mounted on the extrusion holding plate. A cooling plate is attached via an extrusion plate, and a passage is formed in the cooling plate, the extrusion plate, and the extrusion holding plate to communicate with the cooling pipes in the plurality of extrusion pins from the inlet provided on the cooling plate, and the inlet is connected to the extrusion plate. The cooling fluid sucked in is passed through the inside of the cooling pipe through the passage, and further passed through the gap between the inner surface of the hole provided inside the ejector pin and the outer surface of the cooling pipe, and is then passed through the inside of the plurality of ejector pins in a vertical direction. A device for extruding a product for mold casting, characterized in that the product is discharged through a passage and a discharge port formed inside an extrusion holding plate that communicates with a discharge port provided in the extrusion holding plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23093985A JPS6293056A (en) | 1985-10-18 | 1985-10-18 | Product ejecting implement for die casting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23093985A JPS6293056A (en) | 1985-10-18 | 1985-10-18 | Product ejecting implement for die casting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6293056A true JPS6293056A (en) | 1987-04-28 |
Family
ID=16915669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23093985A Pending JPS6293056A (en) | 1985-10-18 | 1985-10-18 | Product ejecting implement for die casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6293056A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5433263A (en) * | 1992-10-28 | 1995-07-18 | Hitachi Metals, Ltd. | Casting ejector |
JP2006026696A (en) * | 2004-07-16 | 2006-02-02 | Suwa Netsukogyo Kk | Cold-chamber die casting machine excellent in durability |
US7210517B2 (en) * | 2001-02-20 | 2007-05-01 | Toshiba Kikai Kabushiki Kaisha | Die casting machine |
JP2013215760A (en) * | 2012-04-06 | 2013-10-24 | Hitachi Metals Ltd | Method for manufacturing aluminum alloy casting |
JP2016010807A (en) * | 2014-06-30 | 2016-01-21 | カルソニックカンセイ株式会社 | Die casting device |
CN105451961A (en) * | 2013-08-22 | 2016-03-30 | 表面制作有限公司 | Mould tool having moving parts |
-
1985
- 1985-10-18 JP JP23093985A patent/JPS6293056A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5433263A (en) * | 1992-10-28 | 1995-07-18 | Hitachi Metals, Ltd. | Casting ejector |
US7210517B2 (en) * | 2001-02-20 | 2007-05-01 | Toshiba Kikai Kabushiki Kaisha | Die casting machine |
JP2006026696A (en) * | 2004-07-16 | 2006-02-02 | Suwa Netsukogyo Kk | Cold-chamber die casting machine excellent in durability |
JP2013215760A (en) * | 2012-04-06 | 2013-10-24 | Hitachi Metals Ltd | Method for manufacturing aluminum alloy casting |
CN105451961A (en) * | 2013-08-22 | 2016-03-30 | 表面制作有限公司 | Mould tool having moving parts |
JP2016010807A (en) * | 2014-06-30 | 2016-01-21 | カルソニックカンセイ株式会社 | Die casting device |
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