JPH0340453Y2 - - Google Patents
Info
- Publication number
- JPH0340453Y2 JPH0340453Y2 JP1984062482U JP6248284U JPH0340453Y2 JP H0340453 Y2 JPH0340453 Y2 JP H0340453Y2 JP 1984062482 U JP1984062482 U JP 1984062482U JP 6248284 U JP6248284 U JP 6248284U JP H0340453 Y2 JPH0340453 Y2 JP H0340453Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- passage
- valve
- molten metal
- closed
- 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
Links
- 239000002184 metal Substances 0.000 claims description 30
- 238000013022 venting Methods 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 230000013011 mating Effects 0.000 claims description 12
- 238000004512 die casting Methods 0.000 claims description 7
- 238000007872 degassing Methods 0.000 description 6
- 239000006082 mold release agent Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、成形時に金型のキヤビテイ内のガ
スを外部に抜くことができるガス抜き弁（エア抜
き弁）を有するダイキヤスト装置に関する。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a die-casting apparatus having a gas vent valve (air vent valve) that can vent gas in a mold cavity to the outside during molding.
（従来技術）
上述のダイキヤスト装置で使用されるガス抜き
弁は、従来、第６図に示すように構成されてい
た。(Prior Art) The gas vent valve used in the above-mentioned die casting apparatus has conventionally been constructed as shown in FIG.
すなわち、ガス抜きを行なう弁体１を筒状部材
２に収納したガス抜き弁３は、弁体１を金型４の
ガス抜き通路５に接近させる必要上、筒状部材２
の弁体１側が金型４のパーツ面で保持されるよう
に、このパーツ面に挿入孔を二つ割りにした凹部
６，６で保持するように設けられていた。 That is, in the degassing valve 3 in which the valve body 1 for degassing is housed in the cylindrical member 2, the valve body 1 must be brought close to the degassing passage 5 of the mold 4, so that the cylindrical member 2
The valve body 1 side of the mold 4 was provided so as to be held by the part surface of the mold 4 with recesses 6, 6 having an insertion hole divided into two parts.
このように構成された保持構造でガス抜き弁３
を保持するときは、金型４が閉鎖されて両凹部
６，６が挿入孔を形成してから、この挿入孔部分
にガス抜き弁３が挿入されるが、上述の金型４の
位置が悪かつたり使用経年によつてガタ付き（鋳
物製品の形状、品質に影響がない許容範囲のガタ
付き）が生じると、上述の凹部６，６による挿入
孔が形ずれして、円形状態にならず、そのためガ
ス抜き弁３を金型４内に挿通させることができな
い問題点を有する。 With the holding structure configured in this way, the gas vent valve 3
When holding the mold 4, the mold 4 is closed and both the recesses 6, 6 form an insertion hole, and then the gas vent valve 3 is inserted into the insertion hole. If looseness (looseness within an allowable range that does not affect the shape or quality of the cast product) occurs due to improper use or over time, the insertion hole formed by the above-mentioned recesses 6, 6 will shift in shape and become circular. First, there is a problem in that the gas vent valve 3 cannot be inserted into the mold 4.
（考案の目的）
この考案の目的は、金型に位置精度の誤差や経
年変化で上述の如き許容範囲内のガタ付きが生じ
ても、ガス抜き弁の挿通に何等影響を与えず、か
つ応答性の優れたガス抜き弁を有するダイキヤス
ト装置の提供にある。(Purpose of the invention) The purpose of this invention is to prevent the insertion of the gas vent valve from being affected in any way even if the mold has wobble within the allowable range as described above due to positional accuracy errors or aging. To provide a die casting device having a gas vent valve with excellent properties.
（考案の構成）
この考案は、開閉可能に設けられ、閉時に合せ
部にキヤビテイを形成する分割式の金型と、金型
閉時の合せ部に、キヤビテイから離して形成され
た弁室と、金型閉時の合せ部に形成され、キヤビ
テイと弁室とを接続する第１ガス抜き通路と、金
型閉時の合せ部に第１ガス抜き通路と並設して形
成され、キヤビテイと弁室とを接続する溶湯押上
げ通路と、内部に第１ガス抜き通路を外部と連通
可能な第２ガス抜き通路が形成され、弁室上方の
一方の金型に、合せ部に沿う方向へ上下動可能に
取付けられた筒状部材と、該筒状部材内に上下動
可能に取付けらけれ、かつ下端部に弁室に収容可
能な弁体頭部を有し、該弁体頭部が溶湯押上げ通
路の弁室開口部に嵌挿されて溶湯押上げ通路を閉
じた状態で溶湯押上げ通路からの溶湯圧により上
動して第２ガス抜き通路を閉じる弁体とを備えた
ガス抜き弁と、上記一方の金型の合せ部上端部に
取付けられ、かつ外週に他方の金型の位置決め凹
部と金型閉時に嵌合する傾斜面を有する位置決め
突出部を備えると共に、筒状部材と嵌合可能な挿
入孔を有し、該筒状部材を上下動可能に保持する
ホルダとを備えるガス抜き弁を有するダイキヤス
ト装置であることを特徴とする。(Structure of the invention) This invention consists of a split mold that is openable and closable and forms a cavity in the mating part when the mold is closed, and a valve chamber that is formed in the mating part at a distance from the cavity when the mold is closed. , a first gas venting passage formed in the mating part when the mold is closed and connecting the cavity and the valve chamber; A molten metal pushing up passage that connects the valve chamber and a second gas venting passage that can communicate the first gas venting passage with the outside are formed inside, and a second gas venting passage is formed in one of the molds above the valve chamber in a direction along the mating part. It has a cylindrical member mounted so as to be movable up and down, and a valve head which is mounted within the cylindrical member so as to be movable up and down and which can be accommodated in a valve chamber at its lower end. a valve body that is fitted into the valve chamber opening of the molten metal pushing up passage to close the molten metal pushing up passage, and is moved upward by molten metal pressure from the molten metal pushing up passage to close a second gas venting passage; a cylindrical shape; The die casting apparatus is characterized by having a gas vent valve having an insertion hole into which the member can be fitted, and a holder that holds the cylindrical member so as to be movable up and down.
（考案の効果）
この考案によれば、一方の金型の合せ部上端部
に取付けられ、かつ外周に他方の金型の位置決め
凹部と金型閉時に嵌合する傾斜面を有する位置決
め突出部を備えると共に、ガス抜き弁の筒状部材
と嵌合可能な挿入孔を有し、該筒状部材を上下動
可能に保持するホルダを備えているので、ガス抜
き弁が一方の金型に取付けられたホルダの挿入孔
に挿入嵌合されることで、金型が位置精度の誤差
や経年変化でガタ付きが生じても、鋳造前のセツ
ト時に、ガス抜き弁の筒状部材はホルダの挿入孔
に密つに嵌合できるため、この部分に溶湯が侵入
する間隙を発生させることなく、溶湯の差込みに
よる筒状部材の上下動に悪影響を与えることがな
く、よつて、良好なガス抜きを長期に渡つて維持
することができる。(Effect of the invention) According to this invention, the positioning protrusion is attached to the upper end of the mating part of one mold and has an inclined surface on the outer periphery that fits into the positioning recess of the other mold when the mold is closed. At the same time, the holder has an insertion hole that can fit into the cylindrical member of the gas vent valve and holds the cylindrical member in a vertically movable manner, so that the gas vent valve can be attached to one of the molds. By inserting and fitting into the insertion hole of the holder, the cylindrical member of the gas vent valve will fit into the insertion hole of the holder, even if the mold becomes loose due to positional accuracy errors or aging, the cylindrical member of the gas vent valve will fit into the insertion hole of the holder when setting up before casting. Since it can be tightly fitted into the cylindrical member, there is no gap for molten metal to enter into this part, and the vertical movement of the cylindrical member due to molten metal insertion is not adversely affected, thus ensuring good degassing over a long period of time. can be maintained over a period of time.
さらに、ガス抜き弁は、溶湯押上げ通路の溶湯
流れ方向に配設させているため、溶湯押上げ通路
からの溶湯流圧を直接弁体の弁体頭部で受けて感
受性か良く、第２ガス抜き通路を正規のタイミン
グで確実に閉じることができ、第２ガス抜き通路
への溶湯の侵入を防止できると同時に、上述のよ
うに感受性が良いため、特別に溶湯流圧を検知す
る手段が不要となり、ガス抜き装置をコンパクト
にできる。 Furthermore, since the gas vent valve is disposed in the molten metal flow direction of the molten metal pushing up passage, the molten metal flow pressure from the molten metal pushing up passage is directly received by the valve body head of the valve body, making it highly sensitive. It is possible to reliably close the gas vent passage at the proper timing and prevent the molten metal from entering the second gas vent passage, and at the same time, it is highly sensitive as described above, so a special means for detecting the molten metal flow pressure is required. This eliminates the need and allows the degassing device to be made more compact.
（実施例）
この考案の一実施例を以下図面に基づいて詳述
する。(Example) An example of this invention will be described in detail below based on the drawings.
図面はガス抜き弁を有するダイキヤスト装置で
使用される金型を示し、第１図、第２図におい
て、金型１１は固定金型１１ａと移動金型１１ｂ
との一対で接離可能に構成され、その合せ部１２
にはキヤビテイ１３が形成されると共に、このキ
ヤビテイ１３と離れて形成された後述するガス抜
き弁１４の一部を形成する弁室４６に接続する溶
湯押上げ通路１５と、この溶湯押上げ通路１５を
迂回して上述の弁室４６に接続する第１のガス抜
き通路１６とが形成されている。 The drawings show a mold used in a die-casting machine having a gas vent valve, and in FIGS. 1 and 2, the mold 11 includes a fixed mold 11a and a movable mold 11b.
The mating portion 12 of the
A cavity 13 is formed in the molten metal push-up passage 15, and a molten metal push-up passage 15 connected to a valve chamber 46 forming a part of a gas vent valve 14, which will be described later, is formed separately from the cavity 13. A first gas vent passage 16 is formed which connects to the above-mentioned valve chamber 46 by bypassing the valve chamber 46 .
上述の固定金型１１ａであつて、第１のガス抜
き通路１６の上部には、Ｌ字形のホルダ１７がボ
ルト１８…で固定され、このホルダ１７には、ガ
ス抜き弁１４の筒状部材１９を上下動可能に嵌合
して支持する挿入孔２０を形成している。 In the fixed mold 11a described above, an L-shaped holder 17 is fixed to the upper part of the first gas vent passage 16 with bolts 18, and the cylindrical member 19 of the gas vent valve 14 is attached to the holder 17. An insertion hole 20 is formed in which the holder is fitted and supported so as to be movable up and down.
しかも、該ホルダ１７は他方の移動金型１１ｂ
の位置決め凹部４８と金型閉鎖時に嵌合する傾斜
面５０を有した位置決め突出部４９を備えてい
る。 Moreover, the holder 17 is connected to the other movable mold 11b.
A positioning protrusion 49 having an inclined surface 50 that fits into the positioning recess 48 when the mold is closed is provided.
前述のガス抜き弁１４は筒状部材１９と弁体２
１とを有し、筒状部材１９の下端側は、前述のホ
ルダ１７の挿入孔２０に挿通されて上下動可能に
支持される。 The aforementioned gas vent valve 14 includes a cylindrical member 19 and a valve body 2.
1, and the lower end side of the cylindrical member 19 is inserted into the insertion hole 20 of the aforementioned holder 17 and supported so as to be movable up and down.
上述の弁体２１はそのロツド部２２が筒状部材
１９の内部に固定された支持部材２３に上下摺動
可能に支持され、また支持部材２３には、ボルト
２４、スプリング２５、ボール２６による規制構
造２７が形成され、この規制構造２７でロツド部
２２の溝部２８を係止することにより、弁体２１
の開の位置を保持する。 The above-mentioned valve body 21 has its rod portion 22 supported by a support member 23 fixed inside the cylindrical member 19 so as to be able to slide up and down. A structure 27 is formed, and by locking the groove portion 28 of the rod portion 22 with this regulating structure 27, the valve body 21
hold in the open position.
さらに、ロツド部２２の上端部に固定された受
け部材２９と、上述の支持部材２３との間に介装
されたスプリング３０は、弁体２１を閉鎖方向に
付勢し、さらに、受け部材２９の上部のロツド部
２２には弁体２１を開放操作する操作片３１が固
定され、その遊端部は筒状部材１９の外部に延出
されている。 Furthermore, the spring 30 interposed between the receiving member 29 fixed to the upper end of the rod portion 22 and the above-mentioned supporting member 23 biases the valve body 21 in the closing direction. An operating piece 31 for opening the valve body 21 is fixed to the upper rod portion 22, and its free end extends outside the cylindrical member 19.
上述の弁体２１は、その背面３２と筒状部材１
９の下端開口部３３とで、ガス抜き用の弁座３４
を形成し、筒状部材１９の下端内壁部と、弁体２
１のロツド部２２の外周部との間で、第２のガス
抜き通路３５を形成し、この第２のガス抜き通路
３５は筒状部材１９の外側面に接続されたガス抜
き管３６のガス抜き通路３７に接続されている。 The above-mentioned valve body 21 has a back surface 32 and a cylindrical member 1.
9 and the lower end opening 33 of the valve seat 34 for gas venting.
The inner wall of the lower end of the cylindrical member 19 and the valve body 2
A second gas venting passage 35 is formed between the first rod part 22 and the outer peripheral part of the first rod part 22, and this second gas venting passage 35 is connected to the outer circumferential surface of the cylindrical member 19. It is connected to the extraction passage 37.
また弁体２１の下端面は溶湯押上げ通路１５と
対向し、さらにその弁体頭部３８と溶湯押上げ通
路１５の弁室開口部４７との間には、ガス止め用
の弁座３９が形成され、この弁座３９は弁体２１
が溶湯によつて押上げられるまで閉鎖されてい
る。 Further, the lower end surface of the valve body 21 faces the molten metal pushing-up passage 15, and a valve seat 39 for stopping gas is provided between the valve body head 38 and the valve chamber opening 47 of the molten metal pushing-up passage 15. The valve seat 39 is formed on the valve body 21.
remains closed until it is pushed up by the molten metal.
さらに上述のガス抜き弁１４は、固定金型１１
ａの上面に固定された固定部材４０の上方部に装
着されるシリンダ装置（図示省略）により支持さ
れると共に、同装置によつて上下動操作され、ま
た上述の固定部材４０には弁操作杆４１が固定さ
れ、この弁操作杆４１はガス抜き弁１４が上昇し
たとき、弁体２１のロツド部２２の操作片３１と
当接して、この操作片３１を下方に押し下げる。 Furthermore, the above-mentioned gas vent valve 14 is made of a fixed mold 11.
It is supported by a cylinder device (not shown) attached to the upper part of a fixing member 40 fixed to the upper surface of a, and is vertically operated by the same device. 41 is fixed, and when the gas vent valve 14 is raised, the valve operating rod 41 comes into contact with the operating piece 31 of the rod portion 22 of the valve body 21 and pushes the operating piece 31 downward.
なお、図中４２，４３はガス抜き弁１４の上下
移動位置を検出するリミツトスイツチである。 In the figure, reference numerals 42 and 43 indicate limit switches for detecting the vertical movement position of the gas vent valve 14.
第３図に示すように、前述のホルダ１７の挿入
孔２０には、ガス抜き弁１４が上昇したとき、そ
の弁体２１と対向する位置に複数のノズル４４…
を形成し、これらノズル４４…は通路４５を介し
て外部の制御弁、離型剤タンク（図示省略）に接
続されている。 As shown in FIG. 3, the insertion hole 20 of the holder 17 has a plurality of nozzles 44 at positions facing the valve body 21 when the gas vent valve 14 is raised.
These nozzles 44 are connected to an external control valve and a release agent tank (not shown) via a passage 45.
また、ホルダ１７は第４図に示すように両金型
１１ａ，１１ｂを合わせた時、移動金型１１ｂと
密接するものであり、この状態においては第３図
に示すようにホルダ１７の傾斜面５０を備えた位
置決め突出部４９が移動金型１１ｂの位置決め凹
部４８に嵌合し、両金型１１ａ，１１ｂの位置ず
れやガタ付きを抑制する。 Furthermore, the holder 17 is in close contact with the movable mold 11b when both molds 11a and 11b are put together as shown in FIG. A positioning protrusion 49 having a diameter of 50 fits into a positioning recess 48 of the movable mold 11b, thereby suppressing displacement and wobbling of both molds 11a and 11b.
このように構成したダイキヤスト装置は、溶湯
を注入する場合、第４図にも示すように、両金型
１１ａ，１１ｂは閉鎖され、ガス抜き弁１４はホ
ルダ１７に保持された状態で、その弁体２１は溶
湯押上げ通路１５の弁室開口部４７と当接され
て、弁室４６のガス止め用の弁座３９が閉鎖さ
れ、また他方のガス抜き用の弁座３４は開放状態
にされている。 When injecting molten metal, the die casting apparatus configured in this way is configured such that both molds 11a and 11b are closed, and the gas vent valve 14 is held in the holder 17, and the valve is closed, as shown in FIG. The body 21 is brought into contact with the valve chamber opening 47 of the molten metal pushing-up passage 15, so that the gas stop valve seat 39 of the valve chamber 46 is closed, and the other gas vent valve seat 34 is opened. ing.
この状態で溶湯がキヤビテイ１３に注入される
と、キヤビテイ１３内に生じたガスは、第１のガ
ス抜き通路１６より、弁室４６のガス抜き用弁座
３４を介して、第２のガス抜き通路３５に抜け、
ガス抜き管３６を介して外部に排出される。 When molten metal is injected into the cavity 13 in this state, the gas generated in the cavity 13 is transferred from the first gas vent passage 16 to the second gas vent via the gas vent valve seat 34 of the valve chamber 46. Go through passage 35,
The gas is discharged to the outside via the gas vent pipe 36.
キヤビテイ１３に注入された溶湯が溶湯押上げ
通路１５に上昇して、弁体２１の弁体頭部３８の
下面をその圧力で押圧すると、この押圧力で弁体
２１のロツド部２２の規制構造２７による規制が
解かれて、弁体２１は上昇し、ガス抜き用の弁座
３４が閉鎖されて、第１のガス抜き通路１６が閉
鎖されることで、キヤビテイ１３内の溶湯は所定
の注入圧力を得る。 When the molten metal injected into the cavity 13 rises to the molten metal push-up passage 15 and presses the lower surface of the valve head 38 of the valve body 21 with its pressure, the regulating structure of the rod portion 22 of the valve body 21 is 27 is lifted, the valve body 21 rises, the gas venting valve seat 34 is closed, and the first gas venting passage 16 is closed, so that the molten metal in the cavity 13 is poured into the specified amount. Get pressure.
溶湯の注入が終了し、成形品が硬化すれば、ガ
ス抜き弁１４はシリンダ装置で上昇され、この上
昇の際に、ガス抜き弁１４の操作片３１は弁操作
杆４１に押下されて、弁体２１は開放され、次い
で両金型１１ａ，１１ｂは開放されて、キヤビテ
イ１３から成形品が取り外される。 When the injection of molten metal is finished and the molded product is hardened, the gas vent valve 14 is raised by the cylinder device, and during this rising, the operating piece 31 of the gas vent valve 14 is pushed down by the valve operating rod 41, and the valve is closed. The body 21 is opened, then both molds 11a, 11b are opened, and the molded product is removed from the cavity 13.
この両金型１１ａ，１１ｂが開放状態にあると
き、キヤビテイ１３には離型剤が塗布されるが、
同時にガス抜き弁１４の弁体２１はホルダ１７内
に位置するので、第５図に示すように、通路４５
に離型剤が供給されて、ノズル４４…から弁体２
１の外周面３８に離型剤を塗布し、１シヨツトの
成形を終了する。 When both molds 11a and 11b are in the open state, a mold release agent is applied to the cavity 13;
At the same time, the valve body 21 of the degassing valve 14 is located in the holder 17, so that the passage 45 is opened as shown in FIG.
The mold release agent is supplied to the valve body 2 from the nozzle 44...
A mold release agent is applied to the outer circumferential surface 38 of one shot, and the molding of one shot is completed.
上述の実施例のようにガス抜き弁１４をホルダ
１７で保持したときは、金型１１ａ，１１ｂの開
閉にかかわらずガス抜き弁１４を確実に保持する
ことができる。 When the gas vent valve 14 is held by the holder 17 as in the above embodiment, the gas vent valve 14 can be held securely regardless of whether the molds 11a, 11b are opened or closed.
図面はこの考案の一実施例を示し、第１図は金
型およびガス抜き弁部分の断面図、第２図は固定
金型側の正面図、第３図は第２図中のＡ−Ａ線視
断面図、第４図、第５図はそれぞれ弁体の作用状
態を示す断面図、第６図は従来のガス抜き弁を示
す断面図である。
１１……金型、１２……合せ部、１３……キヤ
ビテイ、１４……ガス抜き弁、１６……第１のガ
ス抜き通路、１７……ホルダ、１９……筒状部
材、２１……弁体、３５……第２のガス抜き通
路、３８……弁体頭部、４６……弁室、４７……
弁室開口部、４８……位置決め凹部、４９……位
置決め突出部、５０……傾斜面。
The drawings show an embodiment of this invention; Fig. 1 is a sectional view of the mold and gas vent valve portion, Fig. 2 is a front view of the fixed mold side, and Fig. 3 is a section taken along A-A in Fig. 2. A line sectional view, FIGS. 4 and 5 are sectional views showing the operating state of the valve body, respectively, and FIG. 6 is a sectional view showing a conventional gas vent valve. DESCRIPTION OF SYMBOLS 11... Mold, 12... Matching part, 13... Cavity, 14... Gas venting valve, 16... First gas venting passage, 17... Holder, 19... Cylindrical member, 21... Valve body, 35...second gas vent passage, 38...valve body head, 46...valve chamber, 47...
Valve chamber opening, 48... positioning recess, 49... positioning protrusion, 50... inclined surface.
Claims (1)
イを形成する分割式の金型と、 金型閉時の合せ部に、キヤビテイから離して形
成された弁室と、 金型閉時の合せ部に形成され、キヤビテイと弁
室とを接続する第１ガス抜き通路と、金型閉時の
合せ部に第１ガス抜き通路と並設して形成され、
キヤビテイと弁室とを接続する溶湯押上げ通路
と、 内部に第１ガス抜き通路を外部と連通可能な第
２ガス抜き通路が形成され、弁室上方の一方の金
型に、合せ部に沿う方向へ上下動可能に取付けら
れた筒状部材と、 該筒状部材内に上下動可能に取付けらけれ、か
つ下端部に弁室に収容可能な弁体頭部を有し、該
弁体頭部が溶湯押上げ通路の弁室開口部に嵌挿さ
れて溶湯押上げ通路を閉じた状態で溶湯押上げ通
路からの溶湯圧により上動して第２ガス抜き通路
を閉じる弁体とを備えたガス抜き弁と、 上記一方の金型の合せ部上端部に取付けられ、
かつ外周に他方の金型の位置決め凹部と金型閉時
に嵌合する傾斜面を有する位置決め突出部を備え
ると共に、筒状部材と嵌合可能な挿入孔を有し、
該筒状部材を上下動可能に保持するホルダとを備
えることを特徴とする ガス抜き弁を有するダイキヤスト装置。[Scope of Claim for Utility Model Registration] A split-type mold that is openable and closable and forms a cavity in the mating part when closed; A valve chamber formed in the mating part when the mold is closed, separated from the cavity; a first gas venting passage formed in the mating part when the mold is closed and connecting the cavity and the valve chamber; and a first gas venting passage formed in the mating part when the mold is closed in parallel with the first gas venting passage;
A molten metal push-up passage connecting the cavity and the valve chamber, and a second gas venting passage capable of communicating the first gas venting passage with the outside are formed inside, and a second gas venting passage is formed in one mold above the valve chamber along the mating part. a cylindrical member mounted so as to be movable up and down in the direction; a valve body head mounted in the cylindrical member so as to be movable up and down and accommodated in a valve chamber at a lower end; and a valve body which is fitted into the valve chamber opening of the molten metal pushing up passage to close the molten metal pushing up passage and is moved upward by the molten metal pressure from the molten metal pushing up passage to close the second gas venting passage. The gas vent valve is attached to the upper end of the mating part of one of the molds,
and has a positioning protrusion on the outer periphery having an inclined surface that fits into the positioning recess of the other mold when the mold is closed, and has an insertion hole that can be fitted with a cylindrical member,
A die casting apparatus having a gas vent valve, comprising: a holder that holds the cylindrical member so as to be movable up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6248284U JPS60176862U (en) | 1984-04-26 | 1984-04-26 | Die casting equipment with gas vent valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6248284U JPS60176862U (en) | 1984-04-26 | 1984-04-26 | Die casting equipment with gas vent valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60176862U JPS60176862U (en) | 1985-11-22 |
| JPH0340453Y2 true JPH0340453Y2 (en) | 1991-08-26 |
Family
ID=30591736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6248284U Granted JPS60176862U (en) | 1984-04-26 | 1984-04-26 | Die casting equipment with gas vent valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60176862U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843860B2 (en) * | 1976-01-16 | 1983-09-29 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Rotating anode X-ray tube with electromagnetic bearing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS607883Y2 (en) * | 1981-09-14 | 1985-03-18 | 宇部興産株式会社 | Gas venting device for mold |
| JPS58194855U (en) * | 1982-06-15 | 1983-12-24 | マツダ株式会社 | Die casting machine vent valve device |
-
1984
- 1984-04-26 JP JP6248284U patent/JPS60176862U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843860B2 (en) * | 1976-01-16 | 1983-09-29 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Rotating anode X-ray tube with electromagnetic bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60176862U (en) | 1985-11-22 |
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