JPH0243556Y2 - - Google Patents
Info
- Publication number
- JPH0243556Y2 JPH0243556Y2 JP8233286U JP8233286U JPH0243556Y2 JP H0243556 Y2 JPH0243556 Y2 JP H0243556Y2 JP 8233286 U JP8233286 U JP 8233286U JP 8233286 U JP8233286 U JP 8233286U JP H0243556 Y2 JPH0243556 Y2 JP H0243556Y2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- cylindrical wall
- slit
- cylindrical
- bush
- 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
- 238000001816 cooling Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 15
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 238000009749 continuous casting Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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＞
本考案は、ダイカスト鋳造機の型締め工程（射
出工程）において一方の金型、例えば可動金型に
組込まれた分流子の外側への嵌挿によつて射出ス
リーブから押し出された溶湯をキヤビテイに導く
湯道を構成し且つその湯道内に残る溶湯を冷却硬
化させるために他方の金型に組込む鋳込口ブツシ
ユの改良に関する。[Detailed description of the invention] <Industrial application field> The present invention is applied to the fitting of a shunt to the outside of one of the molds, for example, a movable mold, in the mold clamping process (injection process) of a die-casting machine. This invention relates to an improvement in a casting spout bush which forms a runner for guiding molten metal extruded from an injection sleeve into a cavity by inserting the runner and is assembled into the other mold in order to cool and harden the molten metal remaining in the runner.
＜従来の技術＞
従来、此種の鋳込口ブツシユは軸芯に分流子嵌
挿口を穿設して筒状に形成したブツシユ本体の筒
壁に、円周方向略全長に渉る冷却水路を孔開け構
成した構造である。<Conventional technology> Conventionally, this type of pouring bushing has a cooling channel that runs approximately the entire length in the circumferential direction on the cylindrical wall of the bushing body, which is formed into a cylindrical shape with a shunt fitting hole bored in the shaft core. It has a structure with holes.
ところが、型締め時に分流子の外側に嵌挿係合
されて該分流子の上記外側に凹条に形成された溝
とによつて湯道を構成するブツシユ本体の上部筒
壁部分は、溶湯の射出時に流動する該溶湯の高熱
によつて加熱され熱膨張し、射出終了後には冷却
水路内に供給された冷却水によつて冷却されると
いつた極端（急激）な熱衝撃を受け、その結果、
ブツシユ本体の上部筒壁部分は金属疲労度が激し
く特に溶湯の高熱による熱膨張時にその負荷応力
が掛つて筒方向に亀裂が入つて冷却水路に供給さ
れた冷却水が金型の鋳込口内に漏水して溶湯の射
出時に悪影響を及ぼし、連続鋳造を停止させなけ
ればならないといつた連続鋳造により生産性を図
るダイカスト業界において大きな問題になつてい
た。 However, the upper cylindrical wall portion of the bush main body, which is fitted and engaged with the outside of the shunt during mold clamping and forms a runner with grooves formed on the outside of the shunt, does not absorb the molten metal. During injection, the molten metal is heated and thermally expanded by the high heat of the flowing molten metal, and after the injection is completed, it is cooled by the cooling water supplied into the cooling channel. result,
The upper cylindrical wall of the bushing body has a severe degree of metal fatigue, especially when the molten metal expands due to the high heat of the molten metal.The load stress is applied to the upper cylindrical wall of the bushing, causing cracks to form in the cylindrical direction, allowing the cooling water supplied to the cooling channel to enter the mold's pouring port. This has become a major problem in the die casting industry, which aims to increase productivity through continuous casting, as water leakage has an adverse effect on the injection of molten metal, forcing continuous casting to be stopped.
＜考案が解決しようとする問題点＞
本考案が解決しようとする問題点は、溶湯の高
熱によつて熱膨張した際にブツシユ本体の上部筒
壁に亀裂が入らないブツシユ構造として、ブツシ
ユ本体の寿命を長くすることにある。<Problem to be solved by the invention> The problem to be solved by the invention is to create a bushing structure that does not cause cracks in the upper cylinder wall of the bushing body when thermally expanded due to the high heat of the molten metal. The purpose is to extend lifespan.
＜問題点を解決するための手段＞
上記問題を解決するために本考案が講じる技術
的手段は、筒状を呈し且つその筒壁に円周方向の
冷却水路を穿設備えたブツシユ本体の下部筒壁
に、その筒方向全長に渉り開口するスリツトを切
込み備えたことである。<Means for Solving the Problems> The technical means taken by the present invention to solve the above problems is to provide a lower cylinder of the bushing body which has a cylindrical shape and has cooling channels perforated in the circumferential direction in the cylinder wall. The wall is provided with a slit that opens over the entire length in the cylindrical direction.
＜作用＞
本考案は、ブツシユ本体の下部筒壁に切込み開
口したスリツトの開口幅で溶湯の高熱（高圧）に
よつて筒壁部分が熱膨張した際の変形を吸収して
該筒壁部分に熱膨張による負荷応力を掛けない様
にする。<Function> The present invention uses the opening width of the slit cut into the lower cylindrical wall of the bushing body to absorb deformation when the cylindrical wall portion thermally expands due to the high heat (high pressure) of the molten metal. Avoid applying stress due to thermal expansion.
＜実施例＞
本考案の実施例を図面に基づいて説明すると、
ブツシユ本体Ａは固定金型１側に固定された射出
スリーブ２の射出口に取付セツトされ、可動金型
３に入れ子方式、又は同一体に突出された分流子
Ｂと相対峙させ、両金型１，３の型締め時に該分
流子Ｂの外側への嵌挿係合させて該分流子Ｂの上
部外側にその突出方向に凹条に形成された溝４に
よつて溶湯をキヤビテイ５に誘導する湯道６を構
成すると共に、冷却時には該湯道６部内の溶湯を
冷却硬化するものであり、前記分流子Ｂの突出高
と同一長さの中実筒状に形成し、その軸芯に分流
子Ｂの突出形状と略同形の分流子嵌挿口a1を穿設
すると共に、その分流子嵌挿口a1の下部筒壁部分
を除く外周筒壁には冷却水路a2を孔開け構成す
る。<Example> An example of the present invention will be described based on the drawings.
The bushing body A is attached and set to the injection port of the injection sleeve 2 fixed on the side of the fixed mold 1, nested in the movable mold 3, or facing the flow divider B projected from the same body, so that both molds When the molds 1 and 3 are clamped, the molten metal is inserted and engaged with the outside of the splitter B, and the molten metal is guided to the cavity 5 by the groove 4 formed in the protruding direction on the outside of the upper part of the splitter B. The runner 6 is configured to cool and harden the molten metal in the runner 6 during cooling, and is formed into a solid cylindrical shape with the same length as the protruding height of the branching element B, and has a runner 6 at its axis. Drill a shunt fitting socket A 1 that has approximately the same shape as the protruding shape of the shunt B, and drill a cooling water channel A 2 in the outer cylindrical wall of the shunt fitting socket A 1 except for the lower cylindrical wall part. Configure.
そして、ブツシユ本体Ａの下部筒壁に、その筒
方向全長に渉り開口するスリツト７を切込む。 Then, a slit 7 is cut into the lower cylindrical wall of the bush main body A, extending over the entire length in the cylindrical direction.
スリツト７は、射出時に射出スリーブ２から押
し出されて湯道６を流動する溶湯の高熱によつて
ブツシユ本体Ａの上部筒壁部分が熱膨張した際の
その変形を吸収して該上部筒壁部分に熱膨張によ
る負荷応力を掛けない様にするためのもので、そ
の開口形態、特に筒壁の外側から内側（分流子嵌
挿口a1の孔面）に至る壁厚方向の開口形態として
は図示した様に両者間に渉り開口する形態にする
も、若しくは内側を所望の厚さをもつて連設させ
て外側に向けて開口させた溝条の開口形態にする
も任意である。 The slit 7 absorbs the deformation caused by thermal expansion of the upper cylinder wall portion of the bush main body A due to the high heat of the molten metal extruded from the injection sleeve 2 and flowing through the runner 6 during injection. This is to prevent load stress due to thermal expansion from being applied to the cylinder wall, and in particular, the opening form in the wall thickness direction from the outside to the inside of the cylinder wall (the hole surface of the shunt insertion port A1 ) is As shown in the figure, it is possible to form an opening extending between the two, or to form an opening form in which the inner side has a desired thickness and is continuous and opens outward.
図中８はスリツト７のスリツト面７ａ両者が位
置ズレを来たさない様に両者を連結するロツクピ
ンであり、９はスリツト面７ａ両者間が必要以上
に拡開しない様に固定するボルト、ナツトであ
る。 In the figure, 8 is a lock pin that connects the slit surfaces 7a of the slit 7 so that the two do not become misaligned, and 9 is a bolt or nut that fixes the slit surfaces 7a so that the space between them does not expand more than necessary. It is.
＜考案の効果＞
本考案の金型用鋳込口ブツシユは叙上の如く、
筒状を呈し且つその筒壁に円周方向の冷却水路を
穿設備えたブツシユ本体の下部筒壁に、その筒方
向全長に渉り開口するスリツトを切込み備えたブ
ツシユ構造としたので、溶湯の高熱によつてブツ
シユ本体の上部筒壁部分が熱膨張した際のその変
形をスリツトで吸収して該筒壁部分に熱膨張によ
る内部応力を掛けることはない。よつて、熱膨張
によつて亀裂の発生を阻止できるをもつてブツシ
ユ本体の寿命を長くできるると共に、連続鋳造を
可能ならせしめることが出来る。<Effects of the invention> As described above, the mold spout bushing of the invention has the following advantages:
The bush has a cylindrical shape and has cooling channels perforated in the circumferential direction of the cylindrical wall.The lower cylindrical wall of the bush main body has a slit that opens along the entire length of the cylindrical direction. Therefore, when the upper cylindrical wall portion of the bush main body thermally expands, the deformation is absorbed by the slit, and internal stress due to thermal expansion is not applied to the cylindrical wall portion. Therefore, since cracks can be prevented from forming due to thermal expansion, the life of the bush main body can be extended, and continuous casting can be performed.
依つて、所期の目的を達成し得る。 Thus, the intended purpose can be achieved.
図面は本考案金型用鋳込口ブツシユの実施例を
示し、第１図は金型に取付セツトした状態の縦断
正面図、第２図は第１図の−線断面図、第３
図は第１図の−線断面図である。
尚、図中、Ａ：ブツシユ本体、a1：分流子嵌挿
口、a2：冷却水路、７：スリツト。
The drawings show an embodiment of the casting spout bush for a mold according to the present invention, and FIG. 1 is a longitudinal sectional front view of the injector bush installed and set in a mold, FIG.
The figure is a sectional view taken along the line -- in FIG. In addition, in the figure, A: Bush body, a1 : Shunt fitting socket, a2 : Cooling channel, 7: Slit.
Claims (1)
を穿設備えたブツシユ本体の下部筒壁に、その筒
方向全長に渉り開口するスリツトを切込み備えて
なる金型用鋳込口ブツシユ。 A casting spout bush for a mold, which has a cylindrical shape and is provided with a slit that opens over the entire length in the cylindrical direction in the lower cylindrical wall of the bush main body, the cylindrical wall of which is provided with circumferential cooling channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8233286U JPH0243556Y2 (en) | 1986-05-29 | 1986-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8233286U JPH0243556Y2 (en) | 1986-05-29 | 1986-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62193951U JPS62193951U (en) | 1987-12-09 |
| JPH0243556Y2 true JPH0243556Y2 (en) | 1990-11-20 |
Family
ID=30934888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8233286U Expired JPH0243556Y2 (en) | 1986-05-29 | 1986-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0243556Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006239738A (en) * | 2005-03-03 | 2006-09-14 | Matsuoka Tekkosho:Kk | Spool core |
| JP4624300B2 (en) * | 2006-05-02 | 2011-02-02 | 株式会社アーレスティ | Mold cooling structure |
| JP2012125792A (en) * | 2010-12-15 | 2012-07-05 | Calsonic Kansei Corp | Runner of die casting |
-
1986
- 1986-05-29 JP JP8233286U patent/JPH0243556Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62193951U (en) | 1987-12-09 |
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