JPH035262B2 - - Google Patents
Info
- Publication number
- JPH035262B2 JPH035262B2 JP61086079A JP8607986A JPH035262B2 JP H035262 B2 JPH035262 B2 JP H035262B2 JP 61086079 A JP61086079 A JP 61086079A JP 8607986 A JP8607986 A JP 8607986A JP H035262 B2 JPH035262 B2 JP H035262B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- rim
- mold
- molten metal
- cavity
- 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 - Lifetime
Links
- 238000013022 venting Methods 0.000 claims description 19
- 239000011888 foil Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 description 32
- 239000002184 metal Substances 0.000 description 32
- 238000002347 injection Methods 0.000 description 19
- 239000007924 injection Substances 0.000 description 19
- 238000007872 degassing Methods 0.000 description 5
- 238000004512 die casting Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 235000003805 Musa ABB Group Nutrition 0.000 description 1
- 240000008790 Musa x paradisiaca Species 0.000 description 1
- 235000015266 Plantago major Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は竪型射出成形装置におけるデイスクホ
イルの成形用金型に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mold for forming a disc foil in a vertical injection molding apparatus.
例えばアルミニウム製の自動車用デイスクホイ
ルの鋳造は、溶湯射出時におけるガスの巻込みが
少ないことなどにより竪型ダイカストマシンによ
ることが多い。第４図は従来におけるこの種ダイ
カストマシンの金型と射出装置との左半分を右半
分に対し45゜位相をずらして示す概略縦断面図で
あつてこれを同図に基いて説明すると、マシンベ
ース上に固定された固定プラテン１には、中心部
に円筒状の凸部を有する固定金型２が装着されて
おり、また図示しない型締シリンダに支持されて
上下動する可動プランテン３には、中心部に低い
凸部を有する可動金型４が装着されている。５は
両金型２，４間へ円周方向を複数等分する位置か
ら水平方向へ移動自在に挿入された複数個の中子
であつて、可動プランテン側に支持されたシリン
ダ６のピストンロツド７に固定されており、油圧
によるピストンロツド７の進退により水平方向へ
進退するように構成されている。そして、両方の
金型２，４と、閉じられた中子５とによつてキヤ
ビテイ８が形成されている。固定プラテン１と固
定金型２とに形成されたスリーブ孔には、射出ス
リーブ９が下方から挿抜自在に挿入されており、
この射出スリーブ９には、図示しない射出シリン
ダによつて進退するプランジヤチツプ１０が進退
自在に嵌合されている。１１は射出スリーブ９を
スリーブ孔から抜いた状態でこれに注入された溶
湯である。
For example, vertical die-casting machines are often used to cast aluminum automobile disc foils because there is little gas entrainment during injection of molten metal. FIG. 4 is a schematic longitudinal cross-sectional view showing the left half of the mold and injection device of a conventional die casting machine of this type with a phase shift of 45 degrees with respect to the right half. A fixed mold 2 having a cylindrical convex portion in the center is attached to a fixed platen 1 fixed on a base, and a movable platen 3 that is supported by a mold clamping cylinder (not shown) and moves up and down. A movable mold 4 having a low convex portion in the center is attached. Reference numeral 5 indicates a plurality of cores inserted into the molds 2 and 4 so as to be movable in the horizontal direction from positions dividing the circumferential direction into a plurality of equal parts, and a piston rod of a cylinder 6 supported on the movable plantain side. 7, and is configured to move horizontally as the piston rod 7 moves forward and backward using hydraulic pressure. A cavity 8 is formed by both the molds 2 and 4 and the closed core 5. An injection sleeve 9 is inserted into the sleeve hole formed in the fixed platen 1 and the fixed mold 2 from below so as to be freely inserted and removed.
A plunger tip 10 is fitted into the injection sleeve 9 so that it can move forward and backward by an injection cylinder (not shown). The molten metal 11 is injected into the injection sleeve 9 after it has been removed from the sleeve hole.
キヤビテイ８は、成形品としてのデイスクホイ
ルの相当部として、環形板状のデイスク部８ａ
と、その外周部から下方へ向う筒状のリム部８ｂ
とで形成されている。そして、本発明の発明者ら
は、リム部８ｂの下端１箇所にガス抜き装置１２
をガス抜き溝１３を介し接続して成形を試みてみ
た。このガス抜き装置１２は、例えば、特公昭48
−46386号公報、特公昭59−309号公報、および特
公昭59−310号公報などで公知のものであつて、
ガス抜き溝１３に接続された弁室を開閉する排気
弁を備えたものであつて、この排気弁は、溶湯１
１の射出中、開いていてキヤビテイ８内のガスを
機外へ排出するように通過させ、溶湯１１が排気
弁に達したときには、この溶湯１１の慣性力で閉
じるように構成されている。 The cavity 8 has an annular plate-shaped disk portion 8a as a corresponding portion of a disk foil as a molded product.
and a cylindrical rim portion 8b extending downward from its outer periphery.
It is formed by. The inventors of the present invention have also discovered that a gas venting device 12 is provided at one location at the lower end of the rim portion 8b.
I tried molding by connecting the two through the gas vent groove 13. This degassing device 12 is, for example,
−46386, Japanese Patent Publication No. 59-309, and Japanese Patent Publication No. 59-310, etc.,
It is equipped with an exhaust valve that opens and closes a valve chamber connected to the gas vent groove 13, and this exhaust valve is configured to
During the injection of the molten metal 1, the valve 1 is opened and the gas in the cavity 8 is discharged to the outside of the machine, and when the molten metal 11 reaches the exhaust valve, it is closed by the inertia of the molten metal 11.
以上のように構成されていることにより、溶湯
１１を供給した射出スリーブ９を固定金型２のス
リーブ孔に挿入し、ガス抜き装置１２の排気弁を
開いたのちプランジヤチツプ１０を前進させる
と、溶湯１１は射出スリーブ９内を押上げられて
デイスク部８ａに達し、この溶湯１１は、デイス
ク部８ａを放射状に流れたのち、リム部８ｂを自
重で垂下する。キヤビテイ８内のガスは、ガス抜
き装置１２の開いている排気弁を通つて大気へ排
出される。溶湯１１が排気弁に達すると、溶湯１
１の慣性力で排気弁が閉じ、溶湯１１の流出が遮
断される。このようにして溶湯１１を充填したの
ち、溶湯１１の固化、冷却を待つて型開し、中子
５を開いて成形品を取出す。 With the above structure, when the injection sleeve 9 supplied with the molten metal 11 is inserted into the sleeve hole of the fixed mold 2, and the exhaust valve of the gas venting device 12 is opened, the plunger tip 10 is advanced. The molten metal 11 is pushed up inside the injection sleeve 9 and reaches the disk portion 8a, and after flowing radially through the disk portion 8a, the molten metal 11 hangs down the rim portion 8b by its own weight. The gas in the cavity 8 is exhausted to the atmosphere through the open exhaust valve of the gas venting device 12. When the molten metal 11 reaches the exhaust valve, the molten metal 1
The exhaust valve is closed by the inertia force of 1, and the outflow of the molten metal 11 is blocked. After filling the molten metal 11 in this manner, the mold is opened after waiting for the molten metal 11 to solidify and cool, and the core 5 is opened to take out the molded product.
しかしながら、このようなデイスクホイル成形
用金型においては、第５図にキヤビテイ内の溶湯
の流れを斜視図で示すように、デイスク部８ａを
放射状に流れたのちリム部８ｂを垂下する溶湯１
１は、リム部８ｂの下端から上方へ向つて順次溜
つていくことになるので、リム部８ｂに溶湯１１
の行き渡らない空間部１４が残されている間にガ
ス抜き溝１３の入口１５が溶湯１１で閉じてしま
い、空間部１４内のガスが排出されずに封じ込め
られることがある。この結果、溶湯１１がガスを
巻込んだまま固化して成形品に巣ができ、成形品
の品質が低下するという問題があつた。
However, in such a disk foil mold, as shown in a perspective view of the flow of molten metal in the cavity in FIG.
Since the molten metal 1 accumulates sequentially from the lower end of the rim portion 8b upward, the molten metal 11 accumulates in the rim portion 8b.
The inlet 15 of the gas vent groove 13 may close with the molten metal 11 while the space 14 is left in which the gas does not reach, and the gas in the space 14 may be trapped without being exhausted. As a result, there was a problem in that the molten metal 11 solidified while still containing gas, creating cavities in the molded product and deteriorating the quality of the molded product.
このような問題点を解決するために本発明では
金型キヤビテイのデイスクホイルリム相当部の上
端部と下端部とにそれぞれ排気通路を設けてこれ
ら排気通路を金型に付設のガス抜き装置に接続し
た。
In order to solve these problems, in the present invention, exhaust passages are provided at the upper and lower ends of the part corresponding to the disk foil rim of the mold cavity, and these exhaust passages are connected to a gas venting device attached to the mold. did.
射出スリーブ内の溶融物をプランジヤチツプで
押上げると、キヤビテイのデイスク部を放射状に
流れたのちリム部を垂下するが、このとき、キヤ
ビテイ内のガスはリム部の上下両端部から排気通
路と排気弁とを経て吸引され外部へ排出されるの
で、リム部においてガスが溶融物内に封じ込めら
れることがない。
When the molten material in the injection sleeve is pushed up by the plunger tip, it flows radially through the disc part of the cavity and then hangs down the rim part. At this time, the gas in the cavity flows from both the upper and lower ends of the rim part to the exhaust passage and exhaust gas. Since the gas is sucked in through the valve and discharged to the outside, no gas is trapped in the melt at the rim.
第１図および第２図は本発明に係るデイスクホ
イル成形用金型を竪型ダイカストマシンに実施し
た例を示し、第１図は金型と射出装置との一部展
開概略断面図、第２図は第１図のAA横断面図で
ある。なお、第１図は左半分を右半分に対して円
周方向へ45゜位相をずらして破断したところを示
している。また、第３図に示す従来の装置と同構
成の部材にはこれと同符号を付して詳しい説明を
省略し以下これを簡単に説明する。固定プラテン
１に装着された固定金型２の凸部と、可動プラン
テン３に装着された可動金型４の凸部と、互い
90゜位相を違えて配設されてシリンダ６で進退す
る４個の中子５とによつてキヤビテイ８が形成さ
れており、このキヤビテイ８は、環形円板状のデ
イスク部８ａと、ほぼ円筒状のリム部８ｂとで形
成されている。隣接するシリンダ６間の１箇所に
は、排気弁を備えたガス抜き装置１２が両金型
２，４の接合部にシリンダ６と45゜位相を違えて
位置し例えば固定金型２側に支持されて設けられ
ている。
1 and 2 show an example in which a disc foil molding mold according to the present invention is implemented in a vertical die casting machine, FIG. 1 is a partially expanded schematic sectional view of the mold and an injection device, and FIG. The figure is a cross-sectional view of AA in FIG. 1. Note that FIG. 1 shows the left half broken with a phase shift of 45° in the circumferential direction with respect to the right half. Further, members having the same configuration as those of the conventional device shown in FIG. 3 are designated by the same reference numerals, and a detailed explanation thereof will be omitted and will be briefly explained below. The convex part of the fixed mold 2 mounted on the fixed platen 1 and the convex part of the movable mold 4 mounted on the movable plann 3 are mutually
A cavity 8 is formed by the four cores 5 which are arranged at 90 degrees out of phase and move forward and backward in the cylinder 6. It is formed with a shaped rim portion 8b. At one location between the adjacent cylinders 6, a gas venting device 12 equipped with an exhaust valve is located at the junction of both molds 2 and 4 with a phase difference of 45 degrees from the cylinder 6, and is supported, for example, on the fixed mold 2 side. It is well established.
キヤビテイ８のリム部上端外周８ｃとリム部下
端外周８ｄとの外方には、これらと同心状の環状
溝１４，１５がそれぞれ可動金型４側に設けられ
ており、これらの環状溝１４，１５とリム部上下
端外周８ｃ，８ｄとは、その円周方向をほぼ等分
する位置に設けられた複数個の排気通路１６によ
つて連結されている。またガス抜き装置１２の弁
室に接続された前記ガス抜き溝１３は、上部の環
状溝１４に開口されている。さらにこのガス抜き
溝１３と下部の環状溝１５とは、固定金型２に設
けた連通孔１７によつて連通されている。なお、
固定金型２は、加工の都合上、連通孔１７の貫通
部を別体で形成されている。１８はガス抜き溝１
３と弁室とを連通して設けられた迂回状のバイパ
スである。 Annular grooves 14 and 15 concentric with these are provided on the movable mold 4 side, respectively, on the outer side of the outer circumference 8c of the upper end of the rim part and the outer circumference 8d of the lower end of the rim part of the cavity 8, and these annular grooves 14, 15 and the outer circumferences 8c and 8d of the upper and lower ends of the rim portion are connected by a plurality of exhaust passages 16 provided at positions that substantially equally divide the circumferential direction. Further, the gas venting groove 13 connected to the valve chamber of the gas venting device 12 is opened into an annular groove 14 in the upper part. Further, this gas vent groove 13 and the lower annular groove 15 are communicated with each other through a communication hole 17 provided in the fixed mold 2. In addition,
For convenience of processing, the fixed mold 2 has a penetrating portion of the communication hole 17 formed separately. 18 is gas vent groove 1
3 and the valve chamber.
以上のように構成された金型と射出装置とによ
りデイスクホイルの成形動作を説明する。溶湯１
１を供給した射出スリーブ９を固定金型２のスリ
ーブ孔に挿入し、ガス抜き装置１２の排気弁を開
いたのちプランジヤチツプ１０を前進させると、
溶湯１１は射出スリーブ９内を押上げられてデイ
スク部８ａに達し、デイスク部８ａを放射方向に
分かれて流れたのち、円筒状のリム部８ｂに達し
てこのリム部８ｂ内に充填され始める。このとき
デイスク部８ａおよびリム部８ｂ内はガス抜き装
置１２の排気弁を介して外気に通じているので、
デイスク部８ａおよびリム部８ｂ内のガスのうち
一部のものは上側の排気通路１６、環状溝１４、
ガス抜き溝１３、バイパス１８、および、開いて
いる排気弁を経て、キヤビテイ８から外気中に排
出される。また下部のガスは、下側の排気通路１
６、環状溝１５、連通孔１７、ガス抜き溝１３、
バイパス１８、および、開いている排気弁を経
て、キヤビテイ８から外気中に排出される。この
場合、ガスはリム部８ｂの上下両端部から同時に
排気されるので、溶湯１１がリム部８ｂの下端部
から順次溜つていても、ガスが溶湯１１に閉じ込
められることがない。そして本実施例では環状溝
１４，１５を設けたことにより、ガスが環状溝１
４，１５内に拡がるので、排気通路１６の一部が
溶湯１１で塞がれても排気が阻害されることがな
い。このようにして溶湯１１が充填されてガス抜
き装置１２の排気弁に達すると、溶湯１１の慣性
力で排気弁が閉じ、溶湯１１の流出が遮断され
る。このようにして溶湯１１を充填したのち、溶
湯１１の固化、冷却を待つて型開し、中子５を開
いて成形品を取出す。 The operation of molding a disk foil using the mold and injection device configured as described above will be explained. Molten metal 1
1 is supplied into the sleeve hole of the fixed mold 2, and after opening the exhaust valve of the degassing device 12, the plunger tip 10 is advanced.
The molten metal 11 is pushed up inside the injection sleeve 9, reaches the disk portion 8a, flows through the disk portion 8a in a radial direction, reaches the cylindrical rim portion 8b, and begins to be filled into the rim portion 8b. At this time, the inside of the disc portion 8a and the rim portion 8b is communicated with the outside air via the exhaust valve of the gas venting device 12.
Some of the gas in the disk part 8a and the rim part 8b flows through the upper exhaust passage 16, the annular groove 14,
The gas is discharged from the cavity 8 into the outside air through the gas vent groove 13, the bypass 18, and the open exhaust valve. In addition, the lower gas is removed from the lower exhaust passage 1.
6, annular groove 15, communication hole 17, gas vent groove 13,
It is discharged from the cavity 8 to the outside air via the bypass 18 and the open exhaust valve. In this case, since the gas is simultaneously exhausted from both the upper and lower ends of the rim portion 8b, the gas is not trapped in the molten metal 11 even if the molten metal 11 accumulates sequentially from the lower end of the rim portion 8b. In this embodiment, by providing the annular grooves 14 and 15, the gas can be
4 and 15, even if part of the exhaust passage 16 is blocked by the molten metal 11, the exhaust is not obstructed. When the molten metal 11 is filled in this way and reaches the exhaust valve of the degassing device 12, the exhaust valve is closed by the inertia of the molten metal 11, and the outflow of the molten metal 11 is blocked. After filling the molten metal 11 in this manner, the mold is opened after waiting for the molten metal 11 to solidify and cool, and the core 5 is opened to take out the molded product.
このような射出動作においては、ガス抜き溝１
３側からの溶湯１１と連通孔１７側からの溶湯１
１とがほぼ同時にガス抜き装置１２に達しない
と、到達の遅い側のガス抜きが充分に行なわれな
いので、行程距離の長い連通孔１７の径を、短か
いガス抜き溝１３の径よりも大きくすることが望
ましい。 In such an injection operation, the gas vent groove 1
Molten metal 11 from 3 side and molten metal 1 from communication hole 17 side
1 and 1 do not reach the gas venting device 12 at almost the same time, the gas on the slower reaching side will not be sufficiently vented. It is desirable to make it larger.
第３図は本発明の他の実施例を示す金型と射出
装置との一部展開概略縦断面図であつて、本実施
例においてはガス抜き装置１２に真空装置を付設
した。その他は第１図に示すものと同構成である
から同符号を付してその説明を省略する。すなわ
ち前記実施例において大気へ開放していたガス抜
き装置１２の排気弁の排気孔には、切替弁２０を
備えた配管２１が接続されており、この配管２１
には、真空タンク２２が接続されている。また真
空タンク２２には、真空ポンプ２３が接続されて
いる。そして配管２１には、切替弁２０が開いた
ときに閉じ切替弁２０が閉じたときに開く大気開
放の排気孔が設けられている。こうすることによ
り、射出中に切替弁２０を開いてガス抜き装置１
２の排気弁の排気孔と真空タンク２２とを連通さ
せると、キヤビテイ１８内が減圧されるので、溶
湯１１へのガスの巻込みが少なくなり、成形品の
品質がさらに向上する。 FIG. 3 is a partially exploded schematic vertical sectional view of a mold and an injection device showing another embodiment of the present invention, and in this embodiment, a vacuum device is attached to the degassing device 12. Since the other parts have the same configuration as shown in FIG. 1, the same reference numerals are given and the explanation thereof will be omitted. That is, a pipe 21 equipped with a switching valve 20 is connected to the exhaust hole of the exhaust valve of the gas venting device 12, which was open to the atmosphere in the above embodiment.
A vacuum tank 22 is connected to. Further, a vacuum pump 23 is connected to the vacuum tank 22 . The piping 21 is provided with an exhaust hole that closes when the switching valve 20 is opened and opens to the atmosphere when the switching valve 20 closes. By doing this, the switching valve 20 is opened during injection, and the gas venting device 1 is turned off.
When the exhaust hole of the exhaust valve No. 2 and the vacuum tank 22 are communicated with each other, the pressure inside the cavity 18 is reduced, so that gas entrainment into the molten metal 11 is reduced, and the quality of the molded product is further improved.
なお、本実施例ではガス抜き装置１２を１個の
み設けてこれにリム部８ｂ上端からの排気通路と
リム部８ｂ下端からの排気通路とを合流させた例
を示したが、ガス抜き装置１２を２個設けてリム
部８ｂの上端と下端とを各ガス抜き装置１２とを
別々の排気通路でそれぞれ連結してもよい。ま
た、本実施例は本発明を竪型ダイカストマシンに
実施した例を示したが、プラスチツク用の射出成
形機にも同様に実施することができる。 In this embodiment, only one gas venting device 12 is provided, and the exhaust passage from the upper end of the rim portion 8b and the exhaust passage from the lower end of the rim portion 8b are merged into this, but the gas venting device 12 Two gas venting devices 12 may be provided and the upper and lower ends of the rim portion 8b may be connected to each other through separate exhaust passages. Further, although this embodiment shows an example in which the present invention is applied to a vertical die-casting machine, it can be similarly applied to an injection molding machine for plastics.
なお、ダイカストによつて得られた成形品を高
温で数時間熱処理すれば、成形品の表面に目に見
えない程度の極めて小さい気泡があつても、それ
が膨れてブリスタとしてあらわれ、不良品となる
が、成形品によつては、デイスクホイルリム部相
当部の下端のみからガス抜きを行つた場合は、ブ
リスタによる不良品の発生率が50％以上あつたも
のが、デイスクホイルリム部相当部の上下両方か
らガス抜きを行つた場合は、ブリスタによる不良
品の発生率が約10％以下に減少したものもあり、
デイスクホイルリム部相当部の上下両方から同時
にガス抜きを行う方が良好な結果を得ることがで
きることがわかる。 Furthermore, if a molded product obtained by die casting is heat-treated at high temperature for several hours, even if there are very small invisible bubbles on the surface of the molded product, they will swell and appear as blisters, which will cause them to be considered defective. However, depending on the molded product, if gas is vented only from the lower end of the part corresponding to the disc foil rim part, if the rate of defective products due to blisters is 50% or more, the part corresponding to the disc foil rim part In some cases, when gas was vented from both the top and bottom of the product, the incidence of defective products due to blisters was reduced to less than 10%.
It can be seen that better results can be obtained by simultaneously degassing both the upper and lower portions of the disk foil rim portion.
以上の説明により明らかなように、本発明によ
れば、デイスクホイル成形用金型において、金型
キヤビテイのデイスクホイルリム相当部の上端部
と下端部の外周に、該リム相当部と離間する環状
溝をそれぞれ設け、リム相当部上端外周部、リム
相当部下端外周部と前記環状溝との間を、円周方
向に略等配された複数個の排気通路によつて接続
し、前記環状溝の一部をガス抜き溝と連通孔によ
つてガス抜き装置に接続したので、リム相当部の
上下端部からガスを良好に排気することができ、
また仮に１〜２本の排気通路が溶融物で塞がれて
も排気が阻止されることがなく十分に行なわれ、
したがつてガスの巻込みによる成形品の巣発生等
が従来に比べて大幅に減少して成形品の品質が向
上する。
As is clear from the above description, according to the present invention, in the disk foil mold, an annular shape is formed on the outer periphery of the upper and lower end portions of the portion corresponding to the disk foil rim of the mold cavity, spaced apart from the portion corresponding to the rim. A plurality of exhaust passages are provided, and the annular groove is connected to the rim-equivalent upper end outer periphery, the rim-equivalent lower end outer periphery, and the annular groove by a plurality of exhaust passages spaced approximately equally in the circumferential direction. Since a part of the rim is connected to the gas venting device through a gas venting groove and a communication hole, gas can be effectively exhausted from the upper and lower ends of the rim equivalent part.
Furthermore, even if one or two exhaust passages are blocked by molten material, the exhaust will not be blocked and will proceed satisfactorily.
Therefore, the occurrence of cavities in the molded product due to gas entrainment is significantly reduced compared to the conventional method, and the quality of the molded product is improved.
第１図ないし第３図は本発明に係るデイスクホ
イル成形用金型の実施例を示し、第１図は金型と
射出装置との一部展開概略縦断面図、第２図は第
１図のAA横断面図、第３図は本発明の他の実施
例をす金型と射出装置との一部展開概略縦断面
図、第４図および第５図は従来のデイスクホイル
成形用金型を示し、第４図は金型と射出装置との
一部展開概略縦断面図、第５図はキヤビテイ内の
溶湯の流れを説明するために示す固定金型凸部の
斜視図である。
２……固定金型、４……可動金型、５……中
子、８……キヤビテイ、８ａ……デイスク部、８
ｂ……リム部、８ｃ……リム部上端外周、８ｄ…
…リム部下端外周、１２……ガス抜き装置、１３
……ガス抜き溝、１４，１５……環状溝、１６…
…排気通路、１７……連通孔。
1 to 3 show an embodiment of a disk foil molding mold according to the present invention, FIG. 1 is a partially exploded schematic vertical sectional view of the mold and an injection device, and FIG. 2 is a diagram similar to that shown in FIG. 1. 3 is a partially expanded schematic vertical sectional view of a mold and injection device according to another embodiment of the present invention, and FIGS. 4 and 5 are a conventional disc foil molding mold. FIG. 4 is a partially exploded schematic vertical sectional view of the mold and the injection device, and FIG. 5 is a perspective view of a convex portion of the fixed mold shown for explaining the flow of molten metal in the cavity. 2... Fixed mold, 4... Movable mold, 5... Core, 8... Cavity, 8a... Disk part, 8
b...Rim part, 8c...Rim part upper end outer periphery, 8d...
... Rim lower end outer circumference, 12 ... Gas venting device, 13
... Gas vent groove, 14, 15 ... Annular groove, 16 ...
...Exhaust passage, 17...Communication hole.
Claims (1)
が垂直であつてこの型軸方向へ下方から溶融物が
射出されるキヤビテイを備えたデイスクホイル成
形用金型において、前記キヤビテイのデイスクホ
イルリム相当部８ｂの上端部と下端部の外周に、
該リム相当部と離間する環状溝１４，１５をそれ
ぞれ設け、リム相当部上端外周部８ｃ、リム相当
部下端外周部８ｄと前記環状溝１４，１５との間
を、円周方向に略等配された複数個の排気通路１
６によつて接続し、前記環状溝１４，１５の一部
をガス抜き溝１３と連通孔１７によつてガス抜き
装置１２に接続したことを特徴とするデイスクホ
イル成形用金型。1. In a disc foil molding mold having a cavity in which the mold axis direction corresponding to the rotational axis of the disc foil is perpendicular and the melt is injected from below in the mold axis direction, a portion of the cavity corresponding to the disc foil rim On the outer periphery of the upper and lower ends of 8b,
Annular grooves 14 and 15 are provided to be spaced apart from the rim equivalent portion, and the annular grooves 14 and 15 are spaced approximately equally in the circumferential direction between the rim equivalent portion upper end outer peripheral portion 8c, the rim equivalent lower end outer peripheral portion 8d, and the annular grooves 14 and 15. multiple exhaust passages 1
6, and a part of the annular grooves 14 and 15 are connected to a gas venting device 12 through a gas venting groove 13 and a communication hole 17.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8607986A JPS62259652A (en) | 1986-04-16 | 1986-04-16 | Die for forming disk wheel |
| US07/023,820 US4760874A (en) | 1986-04-16 | 1987-03-09 | Method and apparatus for forming disk wheel like formed parts |
| CA000531738A CA1291857C (en) | 1986-04-16 | 1987-03-11 | Method and apparatus for forming disc wheel like formed parts |
| EP87105452A EP0243773B1 (en) | 1986-04-16 | 1987-04-13 | Method and apparatus for forming disc-wheel like formed parts |
| DE8787105452T DE3780067T2 (en) | 1986-04-16 | 1987-04-13 | METHOD AND DEVICE FOR SHAPING RIM-LIKE SHAPED PIECES. |
| AT87105452T ATE77774T1 (en) | 1986-04-16 | 1987-04-13 | METHOD AND DEVICE FOR FORMING RIM-LIKE MOLDINGS. |
| MX006006A MX170275B (en) | 1986-04-16 | 1987-04-13 | METHOD AND APPARATUS TO FORM CONFORMED PARTS AS A DISC WHEEL |
| AU71560/87A AU585806B2 (en) | 1986-04-16 | 1987-04-15 | Method and apparatus for forming disk wheel like formed parts |
| BR8701862A BR8701862A (en) | 1986-04-16 | 1987-04-15 | PROCESS AND APPLIANCE FOR FORMING DISC WHEEL SHAPED PARTS |
| KR1019870003604A KR900008219B1 (en) | 1986-04-16 | 1987-04-15 | Method and apparatus for forming disk wheel like formed parts |
| US07/217,978 US4966223A (en) | 1986-04-16 | 1988-07-12 | Method and apparatus for forming disk wheel like formed parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8607986A JPS62259652A (en) | 1986-04-16 | 1986-04-16 | Die for forming disk wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62259652A JPS62259652A (en) | 1987-11-12 |
| JPH035262B2 true JPH035262B2 (en) | 1991-01-25 |
Family
ID=13876697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8607986A Granted JPS62259652A (en) | 1986-04-16 | 1986-04-16 | Die for forming disk wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62259652A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735059A (en) * | 2016-12-21 | 2017-05-31 | 宁波市北仑怡健模具制造有限公司 | A kind of special easy clean type die casting of automobile production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5577560U (en) * | 1978-11-17 | 1980-05-28 |
-
1986
- 1986-04-16 JP JP8607986A patent/JPS62259652A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62259652A (en) | 1987-11-12 |
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