JPH0489168A - Device for applying powdery heat insulating agent onto inner face of injection sleeve - Google Patents
Device for applying powdery heat insulating agent onto inner face of injection sleeveInfo
- Publication number
- JPH0489168A JPH0489168A JP20423290A JP20423290A JPH0489168A JP H0489168 A JPH0489168 A JP H0489168A JP 20423290 A JP20423290 A JP 20423290A JP 20423290 A JP20423290 A JP 20423290A JP H0489168 A JPH0489168 A JP H0489168A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- injection sleeve
- insulating agent
- injection
- powdery heat
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 78
- 239000007924 injection Substances 0.000 title claims abstract description 78
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 30
- 238000005266 casting Methods 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims description 35
- 239000011810 insulating material Substances 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000007664 blowing Methods 0.000 abstract description 12
- 238000011084 recovery Methods 0.000 abstract description 8
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000013011 mating Effects 0.000 abstract 2
- 230000002950 deficient Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- -1 metal oxides Chemical compound 0.000 description 4
- 238000004512 die casting Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910010253 TiO7 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 235000015895 biscuits Nutrition 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009503 electrostatic coating Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、ダイカストマシン等、射出スリーブ内に注湯
した溶湯を金型のキャビティ内へ射出充填させて鋳造す
るようにした鋳造装置において、その射出スリーブの内
面に粉状断熱剤を塗布するための塗布装置に関し、特に
粉状断熱剤を射出スリーブ内へ射出スリーブの注湯口側
から吹き込んで射出スリーブの内面に静電塗布法により
付着塗布させるようにした射出スリーブ内面への粉状断
熱剤の塗布装置に関するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a casting apparatus such as a die casting machine, in which molten metal poured into an injection sleeve is injected and filled into a cavity of a mold for casting. Regarding a coating device for applying powdered heat insulating material to the inner surface of the injection sleeve, in particular, the powdered heat insulating material is blown into the injection sleeve from the spout side of the injection sleeve, and the powdered heat insulating material is adhered to the inner surface of the injection sleeve by electrostatic coating. The present invention relates to an apparatus for applying a powder heat insulating agent to the inner surface of an injection sleeve.
〈従来の技術〉
粉状断熱剤を射出スリーブの内面に静電塗布させる場合
、粉状断熱剤を射出スリーブの内部全体に均等に行き渡
らせる必要がある。<Prior Art> When a powdered heat insulating agent is electrostatically applied to the inner surface of an injection sleeve, it is necessary to uniformly distribute the powdered heat insulating agent throughout the interior of the injection sleeve.
そこで、粉状断熱剤を射出スリーブ内へ射出スリーブの
注湯口側から吹き込み供給する場合に、射出スリーブの
射出口（金型側の開口部）を開放した状態、すなわち型
開きした状態でもって粉状断熱剤を吹き込むと、粉状断
熱剤が射出スリーブの内部に沿ってスムーズに流れるた
め射出スリーブの内部全体に行き渡らせやすいが、反面
、吹き込み供給した粉状断熱剤の多くが射出スリーブの
射出口から外部へ排出されてしまい、粉状断熱剤の使用
効率が非常に悪くなると同時に、鋳込口ブッシュの内面
に粉状断熱剤が付着堆積して金型の型合わせ不良を来た
したり、鋳造装置の周辺に飛散して作業環境を悪くする
などの不具合があった。Therefore, when supplying powdered heat insulating material by blowing it into the injection sleeve from the pouring port side of the injection sleeve, the powder is supplied with the injection port (opening on the mold side) of the injection sleeve open, that is, with the mold open. When powdered heat insulating material is blown into the injection sleeve, the powdered heat insulating material flows smoothly along the inside of the injection sleeve, making it easier to distribute it throughout the interior of the injection sleeve. As the powder is discharged to the outside from the outlet, the usage efficiency of the powder insulation becomes extremely poor, and at the same time, the powder insulation may adhere and accumulate on the inner surface of the casting spout bushing, causing poor mold matching and casting problems. There were problems such as scattering around the equipment and worsening the working environment.
〈発明が解決しようとする課題〉
本発明はこの様な従来の不具合に鑑みてなされたもので
あり、射出スリーブの内部全体に粉状断熱剤を効率良く
行き渡らせ、射出スリーブの射出口付近にも粉状断熱剤
を十分に付着塗布させることが出来ると共に、粉状断熱
剤が鋳込口ブッシュの内面に付着堆積したり、鋳造装置
の周辺に飛散する慣れのない射出スリーブ内面への粉状
断熱剤の塗布装置を提供せんとするものである。<Problems to be Solved by the Invention> The present invention has been made in view of the above-mentioned problems in the prior art. In addition to being able to apply the powdered heat insulating agent sufficiently, it also prevents powdery heat insulating material from adhering and accumulating on the inner surface of the casting spout bushing, or scattering the powdery material onto the inner surface of the injection sleeve, which may be scattered around the casting equipment. The present invention aims to provide a heat insulating agent coating device.
〈課題を解決するための手段〉
斯る目的を達成する本発明の塗布装置は、射出スリーブ
の注湯口側から吹き込んだ粉状断熱剤を当該射出スリー
ブの内面に静電塗布するようにした塗布装置において、
前記射出スリーブの射出口側を塞ぐための閉塞具を備え
、該閉塞具に射出スリーブ内の余剰粉状断熱剤を射出ス
リーブの外へ吸い出すための回収用ホースを連通接続せ
しめると共に、鋳込口ブッシュの内面に付着した粉状断
熱剤をエアーで吹き飛す手段を設けた事を特徴としたも
のである。<Means for Solving the Problems> The coating device of the present invention that achieves the above object is a coating device that electrostatically coats the inner surface of the injection sleeve with a powder heat insulating agent injected from the pouring port side of the injection sleeve. In the device,
A closure device is provided for blocking the injection port side of the injection sleeve, and a recovery hose for sucking out excess powder heat insulating material in the injection sleeve to the outside of the injection sleeve is connected in communication with the closure device, and the injection port side is connected to the closure device. This is characterized by the provision of a means for blowing off the powdered heat insulating agent adhering to the inner surface of the bush with air.
〈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図及び第２図は本発明第１実施例を示し、第３図乃
至第５図は本発明能の実施例を各々示すが、全図面を通
して共通の構成部材には同じ符号を付しである。尚、本
発明は図示実施例のものに限定されるものでないことは
以下の説明で理解されるだろう。1 and 2 show a first embodiment of the present invention, and FIGS. 3 to 5 show embodiments of the present invention, and common constituent members are given the same reference numerals throughout all the drawings. It is. It will be understood from the following description that the present invention is not limited to the illustrated embodiment.
図中Ａは周知の水平射出式ダイカストマシンであり、固
定盤１と、その固定盤１に取付けられた射出スリーブ２
及び固定金型３と、可動盤４に取付けられた可動金型５
等、従来と同様に構成され、固定金型３と可動金型５と
を互いに型閉した後に射出スリーブ２の注湯口６から溶
湯（溶融金属）を給湯し、プランジャチップ７でもって
金型のキャビティＢ内に射出充填して所望の製品を鋳造
できるようになっている。A in the figure is a well-known horizontal injection die casting machine, which includes a fixed platen 1 and an injection sleeve 2 attached to the fixed platen 1.
and a fixed mold 3 and a movable mold 5 attached to a movable platen 4.
After the fixed mold 3 and the movable mold 5 are closed together, molten metal is supplied from the spout 6 of the injection sleeve 2, and the plunger tip 7 is used to fill the mold. The desired product can be cast by injection filling into the cavity B.
他方、射出スリーブ２の内面に粉状断熱剤ａを塗布する
ための装置は、図示実施例の場合、図示していない高電
圧発生器の一方の電極（例えばアース電極）に電気的に
接続された電極棒８と、その電極棒８を射出スリーブ２
の内部へ出し入れするための手段（図示せず）と、射出
スリーブ２の内部に粉状断熱剤ａを吹き込み供給するた
めの手段（図面ではノズルのみを示す）９とで構成され
ており（特願平１−２３４４０号参照）、上記高電圧発
生器の他方の電極（例えばプラス電極）を射出スリーブ
２側に電気的に接続せしめ、射出スリーブ２の内部に電
極棒８を挿入させると共に、射出スリーブ２の注湯口６
から粉状断熱剤ａをノズル９で吹き込み、射出スリーブ
２の内面と電極棒８との間に高電圧をかけて射出スリー
ブ２内の粉状断熱剤ａを帯電させ、その粉状断熱剤ａを
射出スリーブ２の内面に瞬間的に静電塗布させるように
構成されている。尚、塗布装置としては、上述した図示
実施例のもの以外に、特願平１−１３９９０９号で開示
した如き、予め帯電させた粉状断熱剤を射出スリーブ内
に吹き込んで静電塗布させるようにしたものでも良い。On the other hand, in the illustrated embodiment, the device for applying the powder heat insulating material a to the inner surface of the injection sleeve 2 is electrically connected to one electrode (for example, a ground electrode) of a high voltage generator (not shown). The electrode rod 8 and the electrode rod 8 are inserted into the injection sleeve 2.
(not shown), and a means (only the nozzle is shown in the drawing) 9 for blowing and supplying the powder heat insulating agent a into the injection sleeve 2 (not shown). (Refer to Application No. 1-23440), the other electrode (for example, the positive electrode) of the high voltage generator is electrically connected to the injection sleeve 2 side, and the electrode rod 8 is inserted into the injection sleeve 2, and the injection Pour spout 6 of sleeve 2
Powdered heat insulating material a is blown into the injection sleeve 2 through the nozzle 9, and a high voltage is applied between the inner surface of the injection sleeve 2 and the electrode rod 8 to charge the powdered heat insulating material a inside the injection sleeve 2. It is configured to instantaneously electrostatically apply the liquid to the inner surface of the injection sleeve 2. In addition to the above-mentioned illustrated embodiment, the coating device may be one that blows a pre-charged powder heat insulating agent into the injection sleeve and electrostatically coats it, as disclosed in Japanese Patent Application No. 1-139909. It's fine if you did it.
又、使用する粉状断熱剤としては、溶湯と非反応性の粉
体、例えばボロンや滑石などの帯電性を有する粉体、或
いは金属酸化物や金属硫化物、金属チッ化物等の粉体、
又はこれら粉体に樹脂粉を混合させた粉体などを使用し
得、特に粉体状態でもって自己潤滑性を有する粉体を使
用することが好ましい。更に具体的には、ステアリン酸
とナトリウムやマグネシウム、亜鉛、カルシウム、等の
ステアリン酸塩類や、フッソ樹脂、フタロシアニン、ポ
リエチレン、ポリプロピレン等の樹脂粉、インジュウム
、鉛、黒鉛、二硫化モリブデン、或いは Ｎａ２０ 、
ＢｅＯ、ＭｇＯ、Ａｌ１０３ 、 ５ｉ（ｈ 。In addition, the powder heat insulating agent to be used includes powders that are non-reactive with the molten metal, such as powders that have charging properties such as boron and talc, or powders such as metal oxides, metal sulfides, and metal nitrides.
Alternatively, a powder obtained by mixing these powders with resin powder may be used, and it is particularly preferable to use a powder that has self-lubricating properties in a powder state. More specifically, stearic acid and stearates such as sodium, magnesium, zinc, and calcium, resin powders such as fluororesin, phthalocyanine, polyethylene, and polypropylene, indium, lead, graphite, molybdenum disulfide, or Na20,
BeO, MgO, Al103, 5i(h.
ＣａＯ、ＴｉＯ７，Ｃｒ２Ｏ３、ＭｎＯ２，Ｆｅ２Ｏ３
。CaO, TiO7, Cr2O3, MnO2, Fe2O3
.
ＦｅＯ、ＭｎＯ、ＰｂＯなどの金属酸化物やこれらの酸
化物の混合体であるタルク、スピネル、ムライト等、及
びＷＣ，ＴｉＮ、 Ｂ４Ｃ，ＴｉＢ、 ２ｒＣ，Ｓｉ
Ｃ。Metal oxides such as FeO, MnO, PbO, mixtures of these oxides such as talc, spinel, mullite, and WC, TiN, B4C, TiB, 2rC, Si
C.
Ｓｉ３Ｎ４．ＢＮ等、これらの単体もしくは複数の混合
物を挙げることができる。Si3N4. Examples include BN and the like, either singly or as a mixture of a plurality of these.
そして、この塗布装置には射出スリーブ２の射出口２ａ
側を塞ぐための閉塞具１０を付属させると共に、鋳込口
ブッシュ１１の内面に付着した粉状断熱剤をエアーｂで
吹き飛すための手段を設ける。This coating device includes an injection port 2a of the injection sleeve 2.
A closing tool 10 for closing the side is attached, and a means for blowing off the powder heat insulating agent adhering to the inner surface of the casting port bush 11 with air b is provided.
閉塞具１０は、射出スリーブ２内へ粉状断熱剤ａを注湯
口６から吹き込んだ際に、その粉状断熱剤ａが射出スリ
ーブ２の射出口２ａに連設した鋳込ロブッシュエ１を通
って外部へ吹き出るのを防止するためのものであり、適
宜な駆動機構により鋳込口ブッシュ１１の外側に対して
接離開閉可能に設ける。The obturator 10 is configured such that when the powder heat insulating material a is blown into the injection sleeve 2 from the pouring port 6, the powder heat insulating material a passes through the cast-in Robushue 1 connected to the injection port 2a of the injection sleeve 2. This is to prevent blowing out to the outside, and is provided so that it can be opened and closed toward and away from the outside of the casting port bush 11 by an appropriate drive mechanism.
又、この閉塞具１０には射出スリーブ２内の余剰の粉状
断熱剤ａ′を射出スリーブ２の外部へ吸い出すための回
収用ホース１２を連通接続せしめる。即ち、閉塞具１０
を鋳込口ブッシュ１１の各日縁に適合する略椀形状に形
成し、その口縁にシリコンゴム材等で形成したリング状
のシール材１０ａを一体的に取付けると共に、回収用ホ
ース１２を連通接続せしめ、この閉塞具１０を固定金型
３と可動金型５との間に設置した昇降用シリンダ１３の
ロッド１３ａ先端に取付けて、閉塞具１０を鋳込口ブッ
シュ１１に対して接離開閉自在に構成するものである。Further, a recovery hose 12 for sucking out excess powder heat insulating agent a' inside the injection sleeve 2 to the outside of the injection sleeve 2 is connected to the obturator 10 in communication. That is, the obturator 10
is formed into a substantially bowl shape that fits each edge of the casting port bushing 11, and a ring-shaped sealing material 10a made of silicone rubber material or the like is integrally attached to the edge thereof, and a recovery hose 12 is communicated. The obturator 10 is attached to the tip of the rod 13a of the lifting cylinder 13 installed between the fixed mold 3 and the movable mold 5, and the obturator 10 is opened and closed relative to the casting port bush 11. It can be configured freely.
又、鋳込口ブッシュ１１の内面１１ａに付着した粉状断
熱剤を吹き飛すための手段としては、種々の構成機構の
ものが考えられるが、第１図及び第２図に示した第１実
施例のものは、電極棒８を中空管状に形成し、その先端
部８ａに多数のエアー吹き出し穴１４を開口形成し、中
空管状電極棒８の内部を通して圧送したエアーｂをエア
ー吹き出し穴１４から鋳込口ブッシュ１１の内面１１ａ
に向けて吹き付けることにより鋳込口ブッシュ１１の内
面１１！に付着した粉状断熱剤をエアーｂで吹き飛すよ
うに構成したものである。Furthermore, as a means for blowing off the powder heat insulating agent adhering to the inner surface 11a of the pouring port bush 11, various mechanisms can be considered, but the method shown in FIGS. In the embodiment, the electrode rod 8 is formed into a hollow tubular shape, and a large number of air blowing holes 14 are formed at the tip end 8a of the electrode rod 8. Inner surface 11a of casting port bush 11
By spraying toward the inner surface 11 of the casting port bush 11! The structure is such that the powdered heat insulating agent adhering to the material is blown away with air b.
又、第３図に示した第２実施例のものは、鋳込口ブッシ
ュ１１の内部にエアー通路１５を形成し、そのエアー通
路１５にエアー供給管１６を連通接続させると共に、鋳
込口ブッシュ１１の内面１１ａ側に多数のエアー吹き出
し穴１７を開口形成せしめ、そのエアー吹き出し穴１７
からエアーｂを噴き出させることにより、鋳込口ブッシ
ュ１１の内面１１ａに付着した粉状断熱剤を吹き飛すよ
うに構成したものである。In addition, in the second embodiment shown in FIG. 3, an air passage 15 is formed inside the spout bush 11, an air supply pipe 16 is connected to the air passage 15, and the spout bush 11 is connected to an air supply pipe 16. A large number of air blowing holes 17 are formed on the inner surface 11a side of the air blowing hole 11.
The powder heat insulating agent attached to the inner surface 11a of the spout bushing 11 is blown away by blowing out air b from the casting spout bushing 11.
更に第４図に示した第３実施例のものは、射出スリーブ
２の内面に粉状断熱剤ａを静電塗布する際に、鋳込口ブ
ッシュ１１の内面１１ａに粉状断熱剤が静電付着しない
ように鋳込口ブッシュ１１を絶縁性材料で形成し、回収
用ホース１２を連通接続せしめた閉塞具１０を鋳込口ブ
ッシュ１１に対して接離開閉自在なるように構成だもの
である。尚、この実施例の場合、鋳込ロブッシュ１１全
体を絶縁性材料でもって形成せずとも、内側部分だけを
絶縁性材料でけいせいするようにしても良い。Furthermore, in the third embodiment shown in FIG. The spout bush 11 is made of an insulating material to prevent it from adhering, and the closure 10 to which the recovery hose 12 is connected can be freely opened and closed relative to the spout bush 11. . In the case of this embodiment, the entire cast-in bushing 11 may not be made of an insulating material, but only the inner portion may be made of an insulating material.
又、第５図に示した第４実施例のものは、回収用ホース
１２を連通接続せしめた閉塞具１０を鋳込口ブッシュ１
１に対して接離開閉自在なるように構成すると共に、可
動金型５側に突設した分流子１８と鋳込口ブッシュ１１
との嵌合部分に僅かな隙間１９を設けて、鋳込口ブッシ
ュ１１の内面１１ａに付着した粉状断熱剤を除去しよう
とするものである。即ち、射出スリーブ２から溶湯が射
出されると、鋳込口ブッシュ１１と分流子１８との隙間
１９内に溶湯が浸入して製品湯口部のビスケット部に鋳
バリができるが、その鋳バリに鋳込口ブッシュ１１の内
面１１ａに付着した粉状断熱剤が吸収されて鋳バリと共
に鋳込口ブッシュ１１から除去できるようにしたもので
ある。In addition, in the fourth embodiment shown in FIG.
A shunt 18 and a casting spout bush 11 are constructed so as to be able to freely open and close toward and away from the movable mold 5.
A small gap 19 is provided at the fitting portion between the casting spout bushing 11 and the powdered heat insulating agent adhering to the inner surface 11a of the casting spout bushing 11. That is, when the molten metal is injected from the injection sleeve 2, the molten metal infiltrates into the gap 19 between the spout bush 11 and the flow divider 18, and burrs are formed on the biscuit part of the product sprue. The powder heat insulating agent adhering to the inner surface 11a of the casting spout bushing 11 is absorbed and can be removed from the casting spout bushing 11 together with flash.
〈発明の効果〉
本発明に係る射出スリーブ内面への粉状断熱剤の塗布装
置は斯様に、射出スリーブの射出口側を塞ぐための閉塞
具を備えたので、注湯口側から射出スリーブの内部へ吹
き込み供給された粉状断熱剤が射出スリーブの射出口か
ら外部へ排出される惧れがなくなり、従って粉状断熱剤
の使用効率を大幅に向上させることが出来ると共に、鋳
造装置の周辺に飛散して作業環境を悪くするなどの不具
合の発生を防止することが出来る。<Effects of the Invention> The apparatus for applying a powder heat insulating agent to the inner surface of an injection sleeve according to the present invention is thus equipped with a closing device for closing the injection port side of the injection sleeve, so that the injection sleeve can be sealed from the pouring port side. There is no risk that the powdered heat insulating material that has been blown into the interior will be discharged to the outside from the injection port of the injection sleeve, which greatly improves the usage efficiency of the powdered heat insulating material and also prevents the surroundings of the casting equipment from being discharged. It is possible to prevent problems such as scattering and worsening the working environment.
しかも、閉塞具には射出スリーブ内の余剰粉状断熱剤を
射出スリーブの外へ吸い出すための回収用ホースを連通
接続せしめたので、射出スリーブの射出口を開放したの
と同様の条件で粉状断熱剤を射出スリーブの内部へ吹き
込むことが出来、従って粉状断熱剤を射出スリーブの内
部に沿って全体にスムーズに効率良く行き渡らせること
が出来ると共に、射出スリーブの射出口まで十分に粉状
断熱剤を行き渡らせて付着塗布することが出来る。In addition, since the closure device is connected to a recovery hose for sucking out the excess powder heat insulating material inside the injection sleeve, powder heat insulating material can be collected under the same conditions as when the injection port of the injection sleeve is opened. The insulation can be injected into the interior of the injection sleeve, allowing the powder insulation to be distributed smoothly and efficiently throughout the interior of the injection sleeve, and ensuring sufficient powder insulation up to the injection opening of the injection sleeve. It is possible to spread the agent and apply the adhesive.
又、射出スリーブ内の余剰の粉状断熱剤は回収用ホース
を通して射出スリーブの外へ吸い出されてしまうので、
吸い出した余剰の粉状断熱剤を回収し再利用を図ること
が出来る。In addition, excess powder insulation inside the injection sleeve is sucked out of the injection sleeve through the recovery hose.
The excess powdered insulation material that has been sucked out can be recovered and reused.
更に、鋳込口ブッシュの内面に付着した粉状断熱剤を吹
き飛す手段を設けたので、鋳込口ブッシュの内面に粉状
断熱剤が付着堆積して金型の型合わせ不良を来たしたり
する惧れもなくなる。In addition, we have provided a means to blow off the powdered heat insulating agent that has adhered to the inner surface of the spout bushing, which prevents the powdery heat insulating material from accumulating on the inner surface of the spout bushing and causing poor mold matching. There will be no fear of doing so.
しかも、射出スリーブの射出口側は閉塞具で閉塞されて
いるので、金型のキャビティに塗布する離型剤が射出ス
リーブ内に混入する惧れもなくなる。Moreover, since the injection port side of the injection sleeve is closed with a closing tool, there is no possibility that the mold release agent applied to the cavity of the mold will get mixed into the injection sleeve.
よって、所期の目的を達成し得る。Therefore, the intended purpose can be achieved.
第１図は本発明の第１実施例を示す側面図、第２図（よ
同要部。一部切ヶユ面つ、第、つ１６８図は夫々本発明
の第２凡至第を実施例を示す断面図である。
図中
Ａ：ダイカストマシン ａ：粉状断熱剤ａ ：余剰粉
状断熱剤 ２：射出スリーブ２ａ：射出口
６：注湯口１０：閉塞具 １１：鋳込
ロブッシュ１２：回収用ホースFig. 1 is a side view showing the first embodiment of the present invention, and Fig. 2 is the same main part. It is a sectional view showing an example. In the figure A: Die casting machine a: Powdered heat insulating agent a: Excess powdered heat insulating agent 2: Injection sleeve 2a: Injection port
6: Pouring port 10: Obstruction device 11: Casting lobush 12: Recovery hose
Claims (1)
該射出スリーブの内面に静電塗布するようにした塗布装
置において、前記射出スリーブの射出口側を塞ぐための
閉塞具を備え、該閉塞具に射出スリーブ内の余剰粉状断
熱剤を射出スリーブの外へ吸い出すための回収用ホース
を連通接続せしめると共に、鋳込口ブッシュの内面に付
着した粉状断熱剤を吹き飛す手段を設けた事を特徴とす
る射出スリーブ内面への粉状断熱剤の塗布装置。A coating device configured to electrostatically apply a powdered heat insulating agent injected from a spout side of an injection sleeve to an inner surface of the injection sleeve, comprising a closure device for blocking an injection port side of the injection sleeve, the closure device A collection hose for sucking out the excess powder heat insulating material inside the injection sleeve outside the injection sleeve is connected in communication with the injection sleeve, and a means is also provided to blow off the powder heat insulating material adhering to the inner surface of the casting port bushing. A device for applying powdered heat insulating material to the inner surface of an injection sleeve, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20423290A JPH0489168A (en) | 1990-07-31 | 1990-07-31 | Device for applying powdery heat insulating agent onto inner face of injection sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20423290A JPH0489168A (en) | 1990-07-31 | 1990-07-31 | Device for applying powdery heat insulating agent onto inner face of injection sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0489168A true JPH0489168A (en) | 1992-03-23 |
Family
ID=16487036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20423290A Pending JPH0489168A (en) | 1990-07-31 | 1990-07-31 | Device for applying powdery heat insulating agent onto inner face of injection sleeve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0489168A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05337621A (en) * | 1992-06-05 | 1993-12-21 | Ryobi Ltd | Heat insulating lubrication method for injection sleeve |
| US6039108A (en) * | 1997-09-22 | 2000-03-21 | Hanano Corporation | Sleeve lubricating method and sleeve lubricating mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62127150A (en) * | 1985-11-26 | 1987-06-09 | Asmo Co Ltd | Spray coating method for parting material to die for die casting |
| JPS645751B2 (en) * | 1980-09-18 | 1989-01-31 | Nippon Muki Kk | |
| JPH0211259A (en) * | 1988-05-25 | 1990-01-16 | Ahresty Corp | Applying method for powderlike heat insulating agent to inside surface of injection sleeve |
-
1990
- 1990-07-31 JP JP20423290A patent/JPH0489168A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS645751B2 (en) * | 1980-09-18 | 1989-01-31 | Nippon Muki Kk | |
| JPS62127150A (en) * | 1985-11-26 | 1987-06-09 | Asmo Co Ltd | Spray coating method for parting material to die for die casting |
| JPH0211259A (en) * | 1988-05-25 | 1990-01-16 | Ahresty Corp | Applying method for powderlike heat insulating agent to inside surface of injection sleeve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05337621A (en) * | 1992-06-05 | 1993-12-21 | Ryobi Ltd | Heat insulating lubrication method for injection sleeve |
| US6039108A (en) * | 1997-09-22 | 2000-03-21 | Hanano Corporation | Sleeve lubricating method and sleeve lubricating mechanism |
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