JP2825398B2 - Mold release device for casting work - Google Patents
Mold release device for casting workInfo
- Publication number
- JP2825398B2 JP2825398B2 JP20845292A JP20845292A JP2825398B2 JP 2825398 B2 JP2825398 B2 JP 2825398B2 JP 20845292 A JP20845292 A JP 20845292A JP 20845292 A JP20845292 A JP 20845292A JP 2825398 B2 JP2825398 B2 JP 2825398B2
- Authority
- JP
- Japan
- Prior art keywords
- release
- mold
- work
- spring
- pins
- 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.)
- Expired - Fee Related
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋳造ワークを離型ピン
で押出し、離型する式の鋳造ワークの離型装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casting work releasing apparatus for extruding a casting work with a release pin and releasing the same.
【０００２】[0002]
【従来の技術】金型を用いて鋳造するワークを金型から
離型する装置として、離型ピンを用いる式の離型装置が
実用に供されている。この種の離型装置は、金型を通し
て複数の離型ピンを設け、鋳造後、可動型を移動させ、
固定型の離型ピンを押出板で移動させ、離型ピンで鋳造
ワークを押出し、離型するものである。2. Description of the Related Art As a device for releasing a work to be cast using a die from the die, a release device using a release pin has been put to practical use. This type of release device is provided with a plurality of release pins through a mold, moves the movable die after casting,
The fixed release pin is moved by an extruding plate, and the casting work is extruded by the release pin and released.
【０００３】[0003]
【発明が解決しようとする課題】以上の離型ピンによる
押出し、離型装置においては、従来の離型ピンは、金型
外に配設された進退自在な押出板に基端部を固定、或い
は遊合支持し、押出板の進出でピンを押出し、金型キャ
ビティのワークを押出し、離型させる構造であるため、
以下のような技術課題が発生する。In the above-described extruding and releasing apparatus using a releasing pin, the conventional releasing pin has a base end fixed to an extrudable extruding plate provided outside the mold. Or, it is a structure that supports loose play, pushes out the pin by pushing out the extrusion plate, extrudes the work in the mold cavity, and releases the mold.
The following technical issues occur.
【０００４】即ち、鋳造ワークは形状が一様ではなく、
ワークによっては、各部で肉厚に大きな差があったり、
或いは、金型の合せ面からの凹部、凸部間に大きな差の
ある場合がある。このようなワークを鋳造した場合、こ
れの金型からの離型に際し、離型し易い部分と離型しに
くい部分とが発生する。ところが、離型ピンの離型動
は、複数の、離型位置が異なる離型ピンで同時に、一斉
に、同じ力で離型、押出し動を行うので、離型し易い部
分と離型しにくい部分とが一斉に、同時に押出され、こ
の結果、ワークが平衡に離型することが難しく、ワーク
の変形や、肉厚差の大きい部分に亀裂等が発生する虞が
あり、不良品が発生し、製品歩留りが悪くなり、又品質
も低下する虞がある。That is, the shape of a cast work is not uniform,
Depending on the work, there may be a large difference in wall thickness at each part,
Alternatively, there may be a large difference between the concave portion and the convex portion from the mating surface of the mold. When such a workpiece is cast, a part that is easy to release and a part that is difficult to release occur when the mold is released from the mold. However, the release movement of the release pin is carried out simultaneously and simultaneously with a plurality of release pins having different release positions with the same force, so that it is difficult to release the part that is easy to release. The parts are extruded simultaneously and simultaneously.As a result, it is difficult for the workpiece to be released from the mold in equilibrium, and there is a possibility that the workpiece may be deformed or cracks may occur in the part where the thickness difference is large, resulting in defective products. In addition, the product yield may be deteriorated and the quality may be reduced.
【０００５】本発明は、かかる課題を解決すべくなされ
たもので、その目的とする処は、ワークに肉厚差のある
場合や、金型の合せ面からの凹部、凸部間に大きな差の
ある場合にあっても、ワークに変形や亀裂を生じること
なく、円滑に、確実に離型することを可能とした鋳造ワ
ークの離型装置を提供するにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the object thereof is to provide a case where there is a difference in wall thickness of a work or a large difference between a concave portion and a convex portion from a mating surface of a mold. It is an object of the present invention to provide a mold release device for a cast work that can smoothly and surely release the work without deformation or cracking of the work even when there is a problem.
【０００６】[0006]
【課題を解決するための手段】以上の課題を解決するた
めの手段は、分割された金型間に形成されたキャビティ
でワークを鋳造し、鋳造後のワークを金型に出没自在に
設けた複数の離型ピンの押出し動で離型させるようにし
た鋳造装置の離型装置において、上記離型ピンの少なく
とも１本を、離型動作方向に圧縮されるバネを介して設
けた鋳造ワークの離型装置である。又上記分割金型の双
方に複数の離型ピンを備え、各離型ピンの内の少なくと
も１本を離型動作方向に圧縮されるバネを介して設け、
更に、上記複数の離型ピンは、金型を通ってその先端部
がキャビティに臨み、離型ピンの基端部は金型外の押出
板に支持され、離型ピンの少なくとも１本の基端部端面
と、押出板の対向する支持面間には、バネを縮装し、更
に又、上記複数の離型ピンは、分割された金型の夫々に
備え、各金型を通ってその先端部がキャビティに臨み、
基端部は各金型外の押出板に支持され、各金型の対向す
る離型ピンの少なくとも一組の基端部端面と、各押出板
の対向する支持面間には、バネを縮装し、又、上記分割
金型は、固定型に下型と、可動型の上型でしたことであ
る。A means for solving the above problems is to cast a work in a cavity formed between divided molds, and to provide the cast work in a mold so as to be able to come and go. In a mold release device of a casting device configured to be released by a plurality of release pins in an extruding motion, at least one of the release pins is a cast workpiece provided with a spring compressed in a release operation direction. It is a release device. A plurality of release pins are provided on both of the split molds, and at least one of the release pins is provided via a spring compressed in the release operation direction,
Further, the plurality of release pins pass through the mold, the leading ends thereof face the cavity, the base ends of the release pins are supported by an extrusion plate outside the mold, and at least one base of the release pins is provided. A spring is compressed between the end surface and the opposing support surface of the extruding plate. Further, the plurality of release pins are provided in each of the divided molds and passed through each mold. The tip faces the cavity,
The base end is supported by an extruded plate outside each mold, and a spring is compressed between at least one set of end surfaces of the opposed release pins of each mold and the opposed support surface of each extruded plate. In addition, the split molds are a fixed mold, a lower mold, and a movable mold.
【０００７】[0007]
【作用】上記手段によれば、離型ピンの少なくとも１本
が、ワークの押出し方向にバネで圧縮されているので、
ワークの離型、押出し時、先ずバネで支持された離型ピ
ンが弾性的にワークの一部を押出し、離型させ、従っ
て、バネにより離型ピンの押出し作用に部分的にタイム
ラグが発生し、ワークの離型に際して直ちに離型する部
分と、遅れて離型する部分が生じ、一様な、平衡した離
型の如き変形や亀裂等の発生が防止される。According to the above means, at least one of the release pins is compressed by the spring in the direction of pushing the workpiece, so that
When releasing and pushing out the work, first, the release pin supported by the spring elastically pushes out a part of the work and releases it.Therefore, a time lag occurs in the pushing action of the release pin by the spring. In addition, when the workpiece is released, a part to be released immediately and a part to be released later are generated, so that uniform and balanced deformation, cracks and the like, such as release, are prevented.
【０００８】[0008]
【実施例】以下に本発明の一実施例を添付した図面に従
って詳述する。図１は本発明にかかる離型装置を備える
鋳造金型の縦断面図で、キャビティに溶湯を注湯した状
態の図、図２は上型である可動型の離型初期の状態を示
す縦断面図、図３は可動型及び、上の離型ピンを離型し
た状態の縦断面図、図４は図３の要部の拡大断面図、図
５は上型、上の離型ピンを完全に上昇させた状態の縦断
面図、図６は鋳造ワークを完全に離型させた状態を示す
縦断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of a casting mold provided with a mold releasing apparatus according to the present invention, in which molten metal is poured into a cavity, and FIG. 2 is a longitudinal sectional view showing an initial state of a movable mold as an upper mold. FIG. 3 is a longitudinal sectional view showing a state where the movable mold and the upper release pin are released, FIG. 4 is an enlarged sectional view of a main part of FIG. 3, and FIG. FIG. 6 is a longitudinal sectional view showing a state in which the casting workpiece is completely released, and FIG.
【０００９】図１において１は鋳造金型を示し、下型を
なす固定型２と、上型をなす可動型８とからなる。固定
型２の型合せ面３には鋳造製品のキャビティ部４が形成
され、キャビティ４は、上の可動型８の型合せ面９上に
突出する凸部５、型合せ面３から深く凹設された凹部６
等を備える。In FIG. 1, reference numeral 1 denotes a casting mold, which comprises a fixed mold 2 as a lower mold and a movable mold 8 as an upper mold. A cavity 4 of the cast product is formed on the mold surface 3 of the fixed mold 2, and the cavity 4 has a convex portion 5 projecting above the mold surface 9 of the movable mold 8 above, and a deep recess from the mold surface 3. Recess 6
Etc. are provided.
【００１０】固定型２には、キャビティ４に通じる縦長
の離型ピン挿入孔７…が複数縦設され、挿入孔７…は、
キャビティ４に上端部が開口し、下端部は型底面に開口
している。上の可動型８の型合せ面９には、上記キャビ
ティ部４と対応するキャビティ部１０が形成され、キャ
ビティ部１０は、上記凸部５と対応する凹部１２と、上
記深い凹部６と対応する凸部１１を備え、キャビティ部
４，１０とで鋳造キャビティを構成する。かかるキャビ
ティ部１０にその先端部を開口し、型８の上面に上端部
を開口する離型ピン挿入孔１３…が縦設されている。The stationary mold 2 is provided with a plurality of vertically long release pin insertion holes 7 communicating with the cavity 4.
The upper end is open to the cavity 4 and the lower end is open to the bottom of the mold. A cavity 10 corresponding to the cavity 4 is formed on the mold matching surface 9 of the upper movable mold 8. The cavity 10 corresponds to the concave 12 corresponding to the convex 5 and the deep concave 6. It has a convex portion 11 and a casting cavity is constituted by the cavity portions 4 and 10. A release pin insertion hole 13 having an opening at the tip end and an opening at the upper end of the mold 8 is vertically provided in the cavity 10.
【００１１】下の固定型２の挿入孔７…には離型ピン１
４…が挿入され、離型ピン１４…の先端部はキャビティ
部４に臨み、下端部は固定型２の下方に設けた押出板１
５に支持されている。押出板１５は、基板１６と保持板
１７とからなり、保持板１７には上向きの凹部１８…が
設けられ、上記離型ピン１４は保持板１７を貫通し、こ
れの下端部に設けた円盤状の係止部１９が嵌合され、離
型ピン下端部は押出板１５に支持されることとなる。The release pin 1 is inserted into the insertion hole 7 of the fixed die 2 below.
4 are inserted, the tip of the release pins 14 faces the cavity 4, and the lower end is the extrusion plate 1 provided below the fixed mold 2.
5 is supported. The extruding plate 15 is composed of a substrate 16 and a holding plate 17. The holding plate 17 is provided with upward concave portions 18. The releasing pin 14 penetrates the holding plate 17 and is provided at a lower end thereof. The locking portion 19 is fitted, and the lower end of the release pin is supported by the push plate 15.
【００１２】ところで、複数の離型ピンの内の１本２０
は、上記した特定の挿入孔７―１に嵌合し、離型ピン２
０の下端部の係止部２１を嵌合、保持する押出板１５の
凹部２２をこれの軸方向厚さよりも充分に大きく設定
し、実施例では、凹部２２を基板１６、保持板１７の合
せ面にかかるように対称的に凹状に形成した。かかる離
型ピン２０の係止部２１の底面と、凹部２２の内底面間
には、バネ、例えばコイルバネ２３を縮装し、離型ピン
２０をキャビティ方向に付勢し、図１で示すように、離
型ピン２０は、その先端部がキャビティに臨んで、係止
部２１の肩部が凹部２２の天井に当接している。Incidentally, one of the plurality of release pins 20
Fits into the specific insertion hole 7-1 described above,
The recess 22 of the extruding plate 15 for fitting and holding the locking portion 21 at the lower end of the plate 0 is set to be sufficiently larger than the axial thickness of the pushing plate 15. In the embodiment, the recess 22 is aligned with the substrate 16 and the holding plate 17. It was formed symmetrically concave so as to cover the surface. A spring, for example, a coil spring 23 is compressed between the bottom surface of the locking portion 21 of the release pin 20 and the inner bottom surface of the concave portion 22 to urge the release pin 20 in the cavity direction, as shown in FIG. The release pin 20 has its tip end facing the cavity, and the shoulder of the locking portion 21 abuts the ceiling of the recess 22.
【００１３】上の可動型８の挿入孔１３…には離型ピン
２４…を嵌装し、離型ピン２４の上端部の係止部２５
は、可動型８の上方に配設した押出板２６の凹部２７…
に嵌合、支持されている。上記した特定の離型ピン２０
と対応する離型ピン２８は、挿入孔１３―１に嵌合さ
れ、押出板２６に設けた深い凹部３０に下端部の係止部
２９が嵌合され、係止部２９の上面と、凹部３０の天井
面間には上記と同様のバネ３１が縮装され、軸方向に離
型ピン２８を付勢し、即ち離型ピン２８を下方に弾圧
し、離型ピンは、係止部２９の肩部が、凹部３０の底面
肩部に当接して、図１のように保持されている。A release pin 24 is fitted in the insertion hole 13 of the upper movable die 8 and a locking portion 25 at the upper end of the release pin 24 is provided.
Are recesses 27 of the extrusion plate 26 disposed above the movable die 8.
Is fitted and supported. Specific release pin 20 described above
The corresponding release pin 28 is fitted into the insertion hole 13-1, the locking portion 29 at the lower end portion is fitted into the deep concave portion 30 provided in the extrusion plate 26, and the upper surface of the locking portion 29 and the concave portion A spring 31 similar to the above is contracted between the ceiling surfaces of 30 and urges the release pin 28 in the axial direction, that is, presses the release pin 28 downward. 1 abuts against the bottom shoulder of the recess 30 and is held as shown in FIG.
【００１４】以上において、図１のように型２，８を型
合せした状態でキャビティ部４，１０内に溶湯を充填
し、鋳造ワークＷを得る。実施例では、自動車のナック
ルアームを鋳造する例を示し、ワークＷは、アーム部等
の曲った薄肉部Ｗ１、ホイール側の厚肉部Ｗ２を備え
る。In the above, the molten metal is filled into the cavities 4 and 10 in a state where the dies 2 and 8 are matched as shown in FIG. In the embodiment, an example in which a knuckle arm of an automobile is cast is shown, and the work W includes a bent thin portion W1 such as an arm portion and a thick portion W2 on the wheel side.
【００１５】図１の如く注湯、鋳造後、上の可動型８を
上昇させ、ワークＷの上面を型８から離型させる。上の
可動型８の上昇、離型時、上の押出板２６は、これを上
昇せず、ワークＷの上面を押圧して、下の固定型キャビ
ティ４の保持させる。これを図２で示した。この際、上
方の押出板２６は、図２ように下限位置に保持させて、
離型ピン２８と離型ピン２０とのバネ３１，２３は釣り
あって、ワークＷの離型ピン２０のに起因する下の固定
型２からのバネ突き上げによる剥離を防止する。バネ３
１で弾圧された係止ピン２８は、ワークＷの押圧部を、
バネで弾圧された離型ピン２０の弾性突き上げ力を弾性
的に押さえることとなる。After pouring and casting as shown in FIG. 1, the upper movable die 8 is raised, and the upper surface of the work W is released from the die 8. When the upper movable die 8 is lifted and released, the upper extruding plate 26 does not raise the upper die but presses the upper surface of the work W to hold the lower fixed die cavity 4. This is shown in FIG. At this time, the upper extruding plate 26 is held at the lower limit position as shown in FIG.
The springs 31 and 23 of the release pin 28 and the release pin 20 are balanced to prevent peeling of the workpiece W from the lower fixed die 2 caused by the release pin 20 due to the spring being pushed up. Spring 3
The locking pin 28 pressed in step 1 presses the pressing portion of the work W
The elastic push-up force of the release pin 20 elastically pressed by the spring is elastically suppressed.
【００１６】上の可動型８の上昇が進み、離型が完了し
た状態で、上方の押出板２６を上昇させる。これを図
３、及び図４で示した。上方の押出板２６の上昇で、ワ
ークＷを上から押し付ける力が解除され、上昇の初期で
は、離型ピン２８のバネによる圧縮力が弱まり、バネ２
３との釣り合いが崩れた状態で離型ピン２０のバネ圧縮
力で該ピン２０は弾性的に上昇する。従って、ワークＷ
の離型ピン２０と当接する肉厚部Ｗ２が、バネ２３の作
用で柔らかく上昇し、図３、図４のようにワークＷの一
部がキャビティ４の一部４―１から離型し始める。The upper extruding plate 26 is raised in a state where the upper movable die 8 has been lifted and the release has been completed. This is shown in FIG. 3 and FIG. As the upper extruding plate 26 rises, the force pressing the work W from above is released, and in the initial stage of the rise, the compression force of the release pin 28 by the spring is weakened, and the spring 2
In a state where the balance with the pin 3 is broken, the pin 20 elastically rises by the spring compressive force of the release pin 20. Therefore, the work W
The thick portion W2 which comes into contact with the release pin 20 is softly raised by the action of the spring 23, and a part of the work W starts to be released from the part 4-1 of the cavity 4 as shown in FIGS. .
【００１７】このように、先ずバネ２３で圧縮、付勢さ
れた離型ピン２０の作用で固定型側の下の押出板１５の
上昇を待つことなく、バネ力でワークＷの一部が離型を
開始する。次に、固定型２下方の押出板１５を上昇さ
せ、ワークＷの固定型２からの離型を行う。押出板１５
の上昇動で、バネを備えない固定式の離型ピン１４…が
固定的に上昇し、その先端部でワークＷの当接部を押上
げる。As described above, a part of the work W is separated by the spring force without waiting for the extruding plate 15 below the fixed die to rise by the action of the release pin 20 compressed and urged by the spring 23. Start a type. Next, the extruding plate 15 below the fixed die 2 is raised, and the work W is released from the fixed die 2. Extruded plate 15
, The fixed release pins 14 having no spring are fixedly moved upward, and the contact portion of the workpiece W is pushed up by the leading end thereof.
【００１８】一方、バネ２３支持された離型ピン２０
は、バネ２３の圧縮力で他の離型ピン１４…に先んじて
ワークＷの一部を前記したように離型させ、離型ピンの
押出し、離型に時間的なズレ、即ちタイムラグが発生す
ることとなる。この状態は、図３、及び図４で示した如
くである。図３、図４は説明の便宜上、ワークＷの離型
隙間を大きく表しているが、実際上は極めて微小で、ワ
ークＷの固定離型ピン部分の突き上げ動に対し、バネ２
３で支持された離型ピン２０の突き上げ動の開始が、先
に行われ、バネ２３の圧縮力が開放され、突き上げて、
若干の隙間が発生する程度である。On the other hand, the release pin 20 supported by the spring 23
Releases a part of the work W as described above prior to the other release pins 14 by the compression force of the spring 23, and a time shift, that is, a time lag occurs in the extrusion and release of the release pins. Will be done. This state is as shown in FIG. 3 and FIG. 3 and 4 show the release gap of the work W large for the sake of convenience of description, but it is extremely small in practice, and the spring 2 does not respond to the upward movement of the fixed release pin portion of the work W.
The start of the upward movement of the release pin 20 supported by 3 is performed first, the compression force of the spring 23 is released, and the upward movement is performed.
A slight gap is generated.
【００１９】離型ピン１４による突き上げ動が開始され
ると、上記した離型ピン２０と併せてワークＷを突き上
げ、押出板１５の上昇の継続でワークＷは完全に固定型
２から離型され、図６のように固定型２の上方に離型ピ
ン１４…，２０で支持され、爾後ワークＷを払いだす。When the push-up movement by the release pin 14 is started, the work W is pushed up together with the release pin 20, and the work W is completely released from the fixed mold 2 by continuing to raise the extrusion plate 15. As shown in FIG. 6, the workpiece W is supported above the fixed mold 2 by release pins 14...
【００２０】以上のように、形状が複雑で、肉の厚い部
分、肉の薄い部分等を有するワークＷは、上述したよう
に、各部を同時に、平衡に離型ピンで押出すと、部分的
に離型が円滑に行われずに離型不良、即ち、ワークＷの
変形や、場合によっては亀裂等が発生する場合がある。
本発明は、上記のように、ワークＷの形状、厚肉、薄肉
部で、離型ピンの押出しタイミングがバネを備える離型
ピンにより異なるように離型されるので、各部が最適の
タイミングで離型され、複数の離型ピンの同時押出しの
如き不都合を回避することができる。As described above, the work W having a complicated shape and a thick portion, a thin portion, and the like is partially extruded with the release pins at the same time as described above. In some cases, the mold release is not performed smoothly, resulting in poor mold release, that is, deformation of the work W and, in some cases, cracks.
In the present invention, as described above, in the shape, the thick portion, and the thin portion of the work W, the release timing of the release pin is released differently by the release pin having the spring, so that each part is at the optimal timing. The mold is released, and disadvantages such as simultaneous extrusion of a plurality of release pins can be avoided.
【００２１】以上実施例を説明したが、バネで圧縮され
る離型ピンは、ワークの形状、大きさ、肉の厚い、薄い
部分の位置等で決定され、その数はワークに応じて１
本、或いは複数本に設定する。又、金型は上下型とした
が、実施の対象はこれに限られず、更に、金型は２個の
ものに採用した例を示しているが、金型の分割数は任意
で、金型の必要部分に通常の離型ピンと併せて上記バネ
で圧縮された離型ピンを設ければ良い。Although the embodiment has been described above, the release pin compressed by the spring is determined by the shape and size of the work, the position of the thick and thin portions, and the like.
Set to books or multiple books. In addition, although the mold is an upper and lower mold, the object to be implemented is not limited to this, and further, an example is shown in which two molds are employed. It is sufficient to provide a release pin compressed by the above-mentioned spring together with a usual release pin in a necessary part of the above.
【００２２】[0022]
【発明の効果】以上で明らかなように本発明によれば、
金型鋳造において、離型ピンでワークを金型から離型さ
せる際に、離型ピンの必要な一部をバネで圧縮するよう
にしたので、離型ピンで鋳造ワークを押し出す際、通常
の離型ピンに当接する部分に先立って、バネで圧縮され
た離型ピンと当接する部分は、先ずバネ作用で柔らか
く、緩やかに離型せしめられ、従って、離型開始がワー
クの一部で先行して行われ、爾後は、押出板の作動で固
定離型ピンが時間遅れをもってワークの他の部分を押し
出し、押し出し作動にタイムラグが発生し、離型ピンに
よる離型開始時間が部分的に変更されることとなる。従
って、離型ピンで同時に、同じタイミングで押し出し、
平衡して離型させた場合において、変形、亀裂が発生す
るような形状が複雑であったり、肉厚に大きなバラつき
がある鋳造ワークを、変形、亀裂を生じることなく離型
させることができる。この結果、形状複雑、肉厚に大き
なバラつきのある鋳造ワークを、歩留り良く、離型時の
鋳造欠陥を抑えて得ることができ、鋳造ワークの離型上
極めて有利である。As apparent from the above, according to the present invention,
In mold casting, a necessary part of the release pin is compressed with a spring when releasing the work from the mold with the release pin. Prior to the part that comes into contact with the release pin, the part that comes into contact with the release pin that has been compressed by the spring is first softly and gently released by the action of the spring. After that, the operation of the extrusion plate causes the fixed release pin to push out the other part of the work with a time delay, a time lag occurs in the extrusion operation, and the release start time by the release pin is partially changed. The Rukoto. Therefore, they are simultaneously pushed out by the release pin at the same timing,
When the mold is released in equilibrium, it is possible to release a cast workpiece having a complicated shape or deforming or cracking, or having a large variation in wall thickness, without deforming or cracking. As a result, a cast work having a complicated shape and a large variation in thickness can be obtained with good yield and with suppressed casting defects at the time of release, which is extremely advantageous in releasing the cast work.
【００２３】又本発明は、離型ピンの一部のものの押出
坂支持部と、ピン基端部にバネを縮装するだけで企図す
ることができ、従来の押出板、一部の離型ピンの変更、
バネの追加で構成することができ、構造も簡素で、部品
の追加も最小で足り、実用上極めて有利である等の多大
の効果がある。Further, the present invention can be conceived merely by compressing a spring at the extrusion slope support portion of a part of the release pin and the base end of the pin. Change pins,
It can be constructed by adding a spring, the structure is simple, the addition of components is minimal, and there are many effects such as being extremely advantageous in practical use.
【図１】図１は本発明にかかる離型装置を備える鋳造金
型の縦断面図で、キャビティに溶湯を注湯した状態の図FIG. 1 is a longitudinal sectional view of a casting mold provided with a mold release device according to the present invention, in a state where molten metal is poured into a cavity.
【図２】上型である可動型の離型初期の状態を示す縦断
面図FIG. 2 is a longitudinal sectional view showing an initial state of a movable mold as an upper mold in a mold release state;
【図３】可動型及び、上の離型ピンを離型した状態の縦
断面図FIG. 3 is a longitudinal sectional view showing a state in which a movable die and an upper release pin are released.
【図４】図４は図３の要部の拡大断面図FIG. 4 is an enlarged sectional view of a main part of FIG. 3;
【図５】上型、上の離型ピンを完全に上昇させた状態の
縦断面図FIG. 5 is a longitudinal sectional view showing a state in which an upper mold and an upper release pin are completely raised.
【図６】鋳造ワークを完全に離型させた状態を示す縦断
面図FIG. 6 is a longitudinal sectional view showing a state in which the casting work is completely released from the mold;
１…金型、 ２…固定型、 ４…キャビティ部、 １４
…離型ピン、１５…押出板、 ２０…バネ２３で圧縮さ
れる離型ピン、 ８…可動型、 １０…キャビティ部、
２４…離型ピン、 ２６…押出板、 ２８…バネ３１
で圧縮される離型ピン。DESCRIPTION OF SYMBOLS 1 ... Die, 2 ... Fixed mold, 4 ... Cavity part, 14
... Release pin, 15: Extruded plate, 20: Release pin compressed by spring 23, 8: movable mold, 10: cavity,
24: Release pin, 26: Extruded plate, 28: Spring 31
Release pin compressed by.
Claims (5)
ィでワークを鋳造し、鋳造後のワークを金型に出没自在
に設けた複数の離型ピンの押出し動で離型させるように
した鋳造装置の離型装置において、 上記離型ピンの少なくとも１本を、離型動作方向に圧縮
されるバネを介して設けたこと、を特徴とする鋳造ワー
クの離型装置。A work is cast in a cavity formed between the divided molds, and the cast work is released by a plurality of release pins which are provided so as to be able to move in and out of the mold. A release device for a casting work, wherein at least one of said release pins is provided via a spring compressed in a release operation direction.
備え、各離型ピンの内の少なくとも１本を離型動作方向
に圧縮されるバネを介して設けた請求項１の鋳造ワーク
の離型装置。2. The casting according to claim 1, wherein a plurality of release pins are provided on both of the split molds, and at least one of the release pins is provided via a spring compressed in a release operation direction. Work release equipment.
の先端部がキャビティに臨み、離型ピンの基端部は金型
外の押出板に支持され、離型ピンの少なくとも１本の基
端部端面と、押出板の対向する支持面間には、バネを縮
装した請求項１の鋳造ワークの離型装置。3. The plurality of release pins pass through a mold, the leading ends of the plurality of release pins face the cavity, and the base ends of the release pins are supported by an extrusion plate outside the mold. The mold release apparatus for a cast workpiece according to claim 1, wherein a spring is compressed between a base end portion of the book and an opposing support surface of the extrusion plate.
の夫々に備え、各金型を通ってその先端部がキャビティ
に臨み、基端部は各金型外の押出板に支持され、各金型
の対向する離型ピンの少なくとも一組の基端部端面と、
各押出板の対向する支持面間には、バネを縮装した請求
項１の鋳造ワークの離型装置。4. The plurality of release pins are provided in each of the divided molds, the leading end faces the cavity through each mold, and the base end is supported by an extruded plate outside each mold. And at least one set of base end faces of opposed mold release pins of each mold,
2. The mold release device for a cast workpiece according to claim 1, wherein a spring is compressed between the opposing support surfaces of the respective extruded plates.
型の上型である請求項１の鋳造ワークの離型装置。5. The mold release apparatus according to claim 1, wherein the divided dies are a fixed die, a lower die and a movable die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20845292A JP2825398B2 (en) | 1992-07-13 | 1992-07-13 | Mold release device for casting work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20845292A JP2825398B2 (en) | 1992-07-13 | 1992-07-13 | Mold release device for casting work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0631381A JPH0631381A (en) | 1994-02-08 |
| JP2825398B2 true JP2825398B2 (en) | 1998-11-18 |
Family
ID=16556434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20845292A Expired - Fee Related JP2825398B2 (en) | 1992-07-13 | 1992-07-13 | Mold release device for casting work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2825398B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4772365B2 (en) * | 2005-04-15 | 2011-09-14 | 株式会社東芝 | Case forming method |
| JP5737230B2 (en) * | 2012-06-26 | 2015-06-17 | トヨタ自動車株式会社 | Casting equipment |
| CN110270668A (en) * | 2019-04-22 | 2019-09-24 | 张翼翔 | A kind of novel Aluminium ingot mould reduced based on footprints and installation cost reduces |
| CN112935226B (en) * | 2021-01-30 | 2022-03-22 | 浙江新峰机械有限公司 | Hub blank demoulding device |
| CN113276358B (en) * | 2021-07-24 | 2021-09-17 | 南通豪派金属制品有限公司 | Quick demoulding device that wheel hub made for fire control fan |
-
1992
- 1992-07-13 JP JP20845292A patent/JP2825398B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0631381A (en) | 1994-02-08 |
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