JPH02205244A - Device for coating powdery heat insulating agent inside injection sleeve - Google Patents
Device for coating powdery heat insulating agent inside injection sleeveInfo
- Publication number
- JPH02205244A JPH02205244A JP1023440A JP2344089A JPH02205244A JP H02205244 A JPH02205244 A JP H02205244A JP 1023440 A JP1023440 A JP 1023440A JP 2344089 A JP2344089 A JP 2344089A JP H02205244 A JPH02205244 A JP H02205244A
- Authority
- JP
- Japan
- Prior art keywords
- injection sleeve
- electrode
- heat insulating
- insulating agent
- high voltage
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims abstract description 148
- 239000007924 injection Substances 0.000 title claims abstract description 148
- 239000003795 chemical substances by application Substances 0.000 title abstract description 36
- 239000011248 coating agent Substances 0.000 title abstract description 6
- 238000000576 coating method Methods 0.000 title abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000005686 electrostatic field Effects 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims description 35
- 239000011810 insulating material Substances 0.000 claims description 20
- 230000005684 electric field Effects 0.000 claims description 2
- 239000012212 insulator Substances 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 description 16
- 239000002184 metal Substances 0.000 description 16
- 230000007723 transport mechanism Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- 238000007664 blowing Methods 0.000 description 11
- 238000004512 die casting Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009503 electrostatic coating Methods 0.000 description 2
- 238000007610 electrostatic coating method Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 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
- 238000005452 bending Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
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、射出スリーブ内に一坦
給湯した溶湯（溶融金属）を金型のキャビティ内へ射出
充填して鋳造するようにした鋳造装置において、その射
出スリーブ内面に粉状断熱剤を塗布するための塗布装置
に関するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention is applied to a die-casting machine or the like in which molten metal (molten metal) that is uniformly supplied into an injection sleeve is injected and filled into a cavity of a mold for casting. The present invention relates to a coating device for coating a powder heat insulating agent on the inner surface of an injection sleeve in a casting device.
〈従来の技術〉
射出スリーブ内に給湯された溶湯（溶融金属）は温度低
下が速く、給湯後素早く金型のキャビティ内へ射出充填
してやらないと部分的に凝固して充填不良や鋳肌欠陥を
生じる。かと言って、高速で射出すると射出スリーブ内
のガス（空気等）を巻込み、鋳巣やピンホールが多く発
生する。<Conventional technology> The temperature of the molten metal (molten metal) supplied into the injection sleeve drops quickly, and if it is not injected into the mold cavity quickly after being supplied, it may partially solidify, resulting in poor filling and casting surface defects. arise. On the other hand, when injecting at high speed, gas (air, etc.) inside the injection sleeve is drawn in, causing many blowholes and pinholes.
従って、鋳肌欠陥や鋳巣のない高品質の製品を生産性良
く鋳造する上で、射出スリーブ内に給湯された溶湯をあ
る時間（金型のキャビティ内へ射出充填するまでの間）
、凝固しないように保持することは重要な条件となる。Therefore, in order to cast high-quality products without casting surface defects or blowholes with good productivity, it is necessary to keep the molten metal fed into the injection sleeve for a certain period of time (until it is injected into the mold cavity).
, it is an important condition to maintain it so that it does not coagulate.
そこで、射出スリーブ内の溶湯の凝固を防ぐ方法として
、従来機のようなことが考えられた。Therefore, as a method for preventing the solidification of the molten metal within the injection sleeve, methods similar to those used in conventional machines were considered.
■射出スリーブを保温性の高いセラミックで成形する方
法。■A method of molding the injection sleeve using ceramic with high heat retention.
■ホットチャンバ化する方法。■How to create a hot chamber.
■縦型射出をはじめとして、射出スリーブと溶湯との接
触をできるだけ少なくする方法。■Methods such as vertical injection that minimize contact between the injection sleeve and the molten metal.
■射出スリーブを外部加熱する方法。■Method of externally heating the injection sleeve.
しかし乍ら、上記■の方法は耐衝撃性に問題があり、現
段階では実用化されておらず、また上記■の方法は亜鉛
など融点の低い溶湯では可能だが、アルミニュウムなど
の融点の高い溶湯には実用化されていない。又、上記■
の方法では実際的にほとんど効果がなく、上記■の方法
は維持管理が難しく生産性が悪くなる等の不具合がある
。However, the above method (■) has a problem with impact resistance and has not been put into practical use at this stage.Also, although the above method (■) is possible with molten metals with a low melting point such as zinc, it is possible to use molten metals with a high melting point such as aluminum. has not been put into practical use. Also, the above ■
Method (2) has practically no effect, and method (2) has problems such as difficulty in maintenance and poor productivity.
そこで、本願発明者は、射出スリーブの内面に粉状断熱
剤を塗布せしめることにより、射出スリーブ内に給温し
た溶湯を凝固しないように保温する方法を提案するもの
である。射出スリーブの内面に粉状断熱剤を塗布する場
合、エアー等のガスをキャリアとしたスプレー法や、ロ
ージンバックのように粉状断熱剤を布袋内に入れて擦り
付けたり叩き付けて塗布する方法、或いは静電気を利用
した静電塗布法などが考えられる。しかし、上記スプレ
ー法やロージンパック式では射出スリーブの内面全体に
粉状断熱剤をむらなく均一に塗布することが非常に難し
いだけでなく、非能率的で作業性が悪い不具合がある。Therefore, the inventor of the present application proposes a method of keeping the molten metal heated inside the injection sleeve warm so as not to solidify by applying a powdered heat insulating agent to the inner surface of the injection sleeve. When applying powdered heat insulating material to the inner surface of the injection sleeve, there are two methods: a spray method using a gas such as air as a carrier, a method in which the powdered heat insulating material is placed inside a cloth bag like a rosin bag and rubbed or slammed against it, or An electrostatic coating method using static electricity can be considered. However, with the above-mentioned spray method and rosin pack method, it is not only very difficult to evenly and uniformly apply the powder heat insulating agent to the entire inner surface of the injection sleeve, but also has the disadvantage of being inefficient and having poor workability.
又、静電塗布法によ委場合でも、予め帯電させた粉状断
熱剤を射出スリーブ内へ吹き込む方法では、粉状断熱剤
を吹き込む吹込口付近だけが密となり奥に行くに従って
疎となり、射出スリーブの内面に均一に塗布することが
非常に難しく、また既存の静電塗装用塗布ガンを用いて
も塗布ガンが射出スリーブの内径より大きいため、結局
射出スリーブの外からしか塗布できず、射出スリーブの
内面に粉状断熱剤を均一に塗布することが難しい不具合
がある。Furthermore, even when using the electrostatic coating method, if a pre-charged powder heat insulating material is injected into the injection sleeve, the powder heat insulating material is dense only near the inlet, and becomes sparse as it goes deeper into the injection sleeve. It is very difficult to apply uniformly to the inner surface of the sleeve, and even with existing electrostatic coating guns, the gun is larger than the inner diameter of the injection sleeve, so in the end it can only be applied from the outside of the injection sleeve, and the injection There is a problem in that it is difficult to uniformly apply powdered heat insulating material to the inner surface of the sleeve.
〈発明が解決しようとする課題〉
本発明はこの様な不具合に鑑みてなされたものであり、
射出スリーブの内面に粉状断熱剤を容易且つ確実にむら
なく均一に塗布することが出来る粉状断熱剤の塗布装置
を提供せんとするものである。<Problem to be solved by the invention> The present invention has been made in view of these problems,
It is an object of the present invention to provide a powder heat insulating agent applicator that can easily, reliably, and uniformly apply the powder heat insulating agent to the inner surface of an injection sleeve.
〈課題を解決するための手段〉
斯る目的を達成する本発明射出スリーブ内面への粉状断
熱剤の塗布装置は、高電圧発生器と、該高電圧発生器に
接続されたプラス電極及びマイナス電極と、上記一方の
電極を射出スリーブの内部へ出し入れ自在に挿入搬送す
るための電極搬送機構と、射出スリーブ内に粉状断熱剤
を吹き込むための断熱剤供給機構とで構成し、前記高電
圧発生器の他方の電極を射出スリーブ側に電気的に接続
せしめ、射出スリーブ内面と該射出スリーブ内に挿入し
た前記一方の電極との間で静電電界を発生させて射出ス
リーブ内に吹き込んだ粉状断熱剤を射出スリーブ内面に
塗布するようにした事を特徴としたものである。<Means for Solving the Problems> The device for applying a powder heat insulating agent to the inner surface of an injection sleeve of the present invention that achieves the above object includes a high voltage generator, a positive electrode connected to the high voltage generator, and a negative electrode connected to the high voltage generator. The high voltage The other electrode of the generator is electrically connected to the injection sleeve side, and an electrostatic electric field is generated between the inner surface of the injection sleeve and the one electrode inserted into the injection sleeve, and the powder is blown into the injection sleeve. The invention is characterized in that a heat insulating material is applied to the inner surface of the injection sleeve.
く作用〉
高電圧発生器に接続した一方の電極を射出スリーブ内に
挿入すると共に他方の電極を射出スリーブ側に電気的に
接続せしめ、射出スリーブ内に粉状断熱剤を吹き込み充
満させ又は吹き込みながら、高電圧発生器でもって射出
スリーブ内面と前記−方の電極との間に高電圧をかける
と、射出スリーブ内面と前記一方の電極との間に静電電
界が発生して射出スリーブ内の粉状断熱剤が帯電し、帯
電した粉状断熱剤が瞬間的に射出スリーブの内面に付着
塗布される。Action> One electrode connected to the high voltage generator is inserted into the injection sleeve, and the other electrode is electrically connected to the injection sleeve side, and while filling or blowing powdered heat insulating material into the injection sleeve, When a high voltage is applied between the inner surface of the injection sleeve and the negative electrode using a high voltage generator, an electrostatic field is generated between the inner surface of the injection sleeve and the one electrode, and the powder inside the injection sleeve is generated. The powdered heat insulating material is electrically charged, and the charged powder heat insulating material is instantaneously adhered and applied to the inner surface of the injection sleeve.
〈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図乃至第４図は本発明第１実施例を示し、第６図乃
至第１１図は本発明他の実施例を各々示し、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 to 4 show a first embodiment of the present invention, and FIGS. 6 to 11 show other embodiments of the present invention, and common constituent members are designated by the same reference numerals throughout all the drawings. be. 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及び、可動！ｇ４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から給温した溶
湯（溶融金属）をプランジャチップ７でもって金型のキ
ャビティ８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 die-casting machine, which includes a fixed platen 1, an injection sleeve 2 attached to the fixed platen 1, a fixed mold 3, and a movable die-casting machine. The movable mold 5 etc. attached to g4 are configured in the same manner as before, and the molten metal (molten metal) is heated from the pouring port 6 of the injection sleeve 2 after the fixed mold 3 and the movable mold 5 are closed to each other. A desired product can be cast by injecting and filling a mold cavity 8 with a plunger tip 7.
そして、射出スリーブ２の内部に高電圧発生器９に接続
されたプラスまたはマイナスのどちらか一方の電極９ａ
を出し入れ自在に挿入せしめると共に、その高電圧発生
器９の他方の電極９ｂ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内に粉状断熱剤を吹き込み充
満させ又は吹き込みながら、射出スリーブ２内面と射出
スリーブ２内に挿入せしめた一方の電極９ａとの間に高
電圧をかけて射出スリーブ２の内面に粉状断熱剤を塗布
するものである。Then, either a positive or negative electrode 9a is connected to the high voltage generator 9 inside the injection sleeve 2.
The other electrode 9b of the high voltage generator 9 is electrically connected to the injection sleeve 2 side, and while filling or blowing the powder heat insulating agent into the injection sleeve 2, the injection sleeve The powder heat insulating agent is applied to the inner surface of the injection sleeve 2 by applying a high voltage between the inner surface of the injection sleeve 2 and one electrode 9a inserted into the injection sleeve 2.
即ち、本発明に係る塗布装置は、高電圧発生器９と、そ
の高電圧発生器９に接続されたプラス電極及びマイナス
電極と、上記プラスまたはマイナスのどちらか一方の電
極９ａを射出スリーブ２内部へ出し入れ自在に挿入搬送
するための電極搬送機構１０と、射出スリーブ２内に粉
状断熱剤を吹き込むための断熱剤供給機構１１とで構成
される。That is, the coating device according to the present invention has a high voltage generator 9, a positive electrode and a negative electrode connected to the high voltage generator 9, and either the positive or negative electrode 9a inside the injection sleeve 2. It is comprised of an electrode transport mechanism 10 for inserting and transporting the electrode into and out of the injection sleeve 2, and a heat insulating agent supply mechanism 11 for blowing powdered heat insulating material into the injection sleeve 2.
高電圧発生器９は、＾電圧発生制御部に接続されたプラ
ス電極とマイナス電極との間に１０〜１００ＫＶ程度の
高電圧を発生することが出来る周知のものを使用し、こ
れを例えばダイカストマシンＡの固定盤１上に設置せし
め、プラス電極またはマイナス電極のどちらか一方の電
極９ａを電極搬送機構１０でもって射出スリーブ２の内
部に射出スリーブ２側と電気的に接触しないように、好
ましくは射出スリーブ２内に挿入した時射出スリーブ２
の軸芯とほぼ一致するように出し入れ自在に挿入さ「、
他方の電極９ｂを射出スリーブ２側に電気的に接続させ
るものである。尚、一方の電極９ａ乃至は他方の電極９
ｂをプラス側とするかマイナス側とするかは、射出スリ
ーブ２の内面に塗布する粉状断熱剤の電気的性質（極性
）により決定される。又、他方の電極９ｂを射出スリー
ブ２側に電気的に接続する場合、他方の電極９ｂを射出
スリーブ２に直接接続させても良いが、その射出スリー
ブ２を支持し、でいる固定盤１に電気的に接続させるよ
うにしても良い。The high voltage generator 9 is a well-known one capable of generating a high voltage of about 10 to 100 KV between a positive electrode and a negative electrode connected to a voltage generation control section, and is used in a die-casting machine, for example. Preferably, the electrode 9a, either the positive electrode or the negative electrode, is placed inside the injection sleeve 2 using the electrode conveying mechanism 10 so that it does not come into electrical contact with the injection sleeve 2 side. Injection sleeve 2 when inserted into injection sleeve 2
It is inserted freely in and out so that it almost coincides with the axis of the
The other electrode 9b is electrically connected to the injection sleeve 2 side. Note that one electrode 9a to the other electrode 9
Whether b is on the plus or minus side is determined by the electrical properties (polarity) of the powder heat insulating agent applied to the inner surface of the injection sleeve 2. In addition, when the other electrode 9b is electrically connected to the injection sleeve 2 side, the other electrode 9b may be directly connected to the injection sleeve 2. It may also be electrically connected.
電極搬送機＄４１０は、高電圧発生器９に接続された一
方の電極９ａを射出スリーブ２の内部に出し入れ自在に
搬送するためのものであり、その具体的機構としては種
々の機構が考えられる。即ち、第１図乃至第４図に示し
た第１実施例の電極搬送機４４１０は、ダイカストマシ
ンＡの固定盤１上に固着したベース板１２にレール１２
ａを敷設し、そのレール１２ａにアーム１３をシリンダ
１４でもって水平方向に移動自在に取付け、そのアーム
１３に駆動用シリンダ１５を枢軸１６でもって揺動自在
に取付けると共に、７−ム１３の先端部１３ａに緩円弧
状に形成したガイド板１７を射出スリーブ２の注湯口６
方へ向けて垂下取付け、更に上記駆動用シリンダ１５の
ロッド１５ａ先端にはガイドローラ１８を備えた支持具
１９を取付け、その支持具１９を上記ガイド板１７にガ
イドローラ１８を介して移動自在に連繋させると共に、
支持具１９に高電圧発生器９に接続された一方の電極９
ａを上記ガイド板１１とほぼ沿うように垂下取付けて、
一方の電極９ａを射出スリーブ２の注湯口６から射出ス
リーブ２内へ出し入れするように構成したものである。The electrode conveying machine $410 is for conveying one electrode 9a connected to the high voltage generator 9 into and out of the injection sleeve 2, and various mechanisms can be considered as its specific mechanism. . That is, the electrode conveying machine 4410 of the first embodiment shown in FIGS.
The arm 13 is attached to the rail 12a with a cylinder 14 so as to be movable in the horizontal direction, and the driving cylinder 15 is attached to the arm 13 with a pivot 16 so as to be swingable. A guide plate 17 formed in a gentle arc shape is connected to the pouring port 6 of the injection sleeve 2 at the portion 13a.
Further, a support 19 equipped with a guide roller 18 is attached to the tip of the rod 15a of the driving cylinder 15, and the support 19 is movably attached to the guide plate 17 via the guide roller 18. Along with connecting
One electrode 9 connected to the high voltage generator 9 on the support 19
a hanging down so as to be substantially along the guide plate 11,
One electrode 9a is configured to be inserted into and taken out from the injection sleeve 2 through the pouring port 6 of the injection sleeve 2.
この第１実論例の場合、高電圧発生器９に接続された一
方の電極９ａを射出スリーブ２とほぼ同じ長さに形成す
ると共に、途中で曲らないようにある程度の剛性を有す
る導電材でも。In the case of this first practical example, one electrode 9a connected to the high voltage generator 9 is formed to have approximately the same length as the injection sleeve 2, and is made of a conductive material having a certain degree of rigidity so as not to bend in the middle. but.
って形成し、ダイカストマシンＡの固定盤１上に設置し
た高電圧発生器９とコード２０でもって電気的に接続す
る。尚、アーム１３を水平方向に移動自在に構成したの
は、射出スリーブ２内に溶湯を注湯する際に、アーム１
３に垂下取付、けたガイド板１１及び一方の電極９ａが
邪魔になるためであり、注湯時の邪魔にならないように
アーム１３を上下方向に昇降自在に構成しても良い。又
、この第１実施例の場合、高電圧発生器９に接続された
一方の電極９ａを射出スリーブ２の注湯口６から出し入
れしゃすいように、射出スリーブ２の注湯口６の平面形
状を軸方向に長い楕円形状に形成するか、或いは図示例
の如く軸方向に長い切り込み６ａを形成することが好ま
しい。It is electrically connected to a high voltage generator 9 installed on the fixed platen 1 of the die casting machine A by a cord 20. The reason why the arm 13 is configured to be movable in the horizontal direction is that when pouring molten metal into the injection sleeve 2, the arm 13 can be moved freely in the horizontal direction.
This is because the girder guide plate 11 and one of the electrodes 9a are installed in a hanging position at 3, and the arm 13 may be configured to be able to move up and down in the vertical direction so as not to get in the way during pouring. In the case of this first embodiment, the planar shape of the pouring port 6 of the injection sleeve 2 is set as an axis so that one electrode 9a connected to the high voltage generator 9 can be easily inserted and removed from the pouring port 6 of the injection sleeve 2. It is preferable to form an elliptical shape that is long in the direction, or to form a notch 6a that is long in the axial direction as shown in the illustrated example.
而して、この第１実施例の場合、アーム１３をシリンダ
１４でもって射出スリーブ２の直上位置に水平移動させ
（第１図の状態）、その状態において駆動用シリンダ１
５のロッド１５ａを伸長すると、ロッド１５ａ先端に取
付けた支持具１９がガイド板１１にガイドされて、第２
図に示す如く支持具１９がガイド板１７の先端力へ移動
し、同時に支持具１９に取付けた高電圧発生器９の一方
の電極９ａが射出スリーブ２の注湯口６から射出スリー
ブ２内に挿入される。そして、駆動用シリンダ１５のロ
ッド１５ａを元の状態に短縮させれば、上記と逆の過程
をたどって高電圧発生器９に接続された一方の電極９ａ
が射出スリーブ２の外に引き抜かれ、第１図の状態に復
帰する。In the case of this first embodiment, the arm 13 is horizontally moved by the cylinder 14 to a position directly above the injection sleeve 2 (the state shown in FIG. 1), and in that state, the driving cylinder 1 is
When the rod 15a of No. 5 is extended, the support 19 attached to the tip of the rod 15a is guided by the guide plate 11, and the second rod 15a is extended.
As shown in the figure, the support 19 moves to the tip of the guide plate 17, and at the same time one electrode 9a of the high voltage generator 9 attached to the support 19 is inserted into the injection sleeve 2 from the pouring port 6 of the injection sleeve 2. be done. Then, if the rod 15a of the driving cylinder 15 is shortened to its original state, one electrode 9a connected to the high voltage generator 9 will be
is pulled out of the injection sleeve 2 and returns to the state shown in FIG.
尚、高電圧発生器９に接続された一方の電極９ａを射出
スリーブ２内に挿入させる場合、注湯口６のみに限定さ
れるものではなく、射出スリーブ２に専用の挿入口を開
口形成しても良いし、後述する第２乃至第８実施例（第
６図乃至第１２図参照）の如く射出スリーブ２の射出口
２ａ側から挿入するか、或いは第１１実施例（第１６図
参照）や第１２実施例（第１７図参照）の如く可動金型
５側またはプランジャチップ７側から挿入しても良い。Note that when one electrode 9a connected to the high voltage generator 9 is inserted into the injection sleeve 2, it is not limited to the pouring port 6, but a dedicated insertion port may be formed in the injection sleeve 2. Alternatively, it can be inserted from the injection port 2a side of the injection sleeve 2 as in the second to eighth embodiments (see Figs. 6 to 12), which will be described later, or it can be inserted from the injection port 2a side of the injection sleeve 2 as in the 11th embodiment (see Fig. 16). It may be inserted from the movable mold 5 side or the plunger chip 7 side as in the twelfth embodiment (see FIG. 17).
又、射出スリーブ２の内部に粉状断熱剤を吹き込むため
の断熱剤供給機構１１は、断熱剤供給源とその供給源か
ら粉状断熱剤を圧送するための圧送装置及び粉状断熱剤
を射出スリーブ２内へ吹き込むためのノズルｌｔａとで
構成され（尚、図示実施例では断熱剤供給機構として、
そのノズル部分しか図示していない）、そのノズル１１
ａを射出スリーブ２の吹込口に臨ませるか、或いは吹込
口から射出スリーブ２内に挿入させるか、又は射出スリ
ーブ２内に一旦挿入させて引抜き移動させながら、ノズ
ル１１ａから粉状断熱剤を吹き出して割出スリーブ２内
に粉状断熱剤を充満さけるものである。Further, the heat insulating agent supply mechanism 11 for injecting the powdered heat insulating material into the inside of the injection sleeve 2 includes a heat insulating material supply source, a pumping device for pumping the powdery heat insulating material from the supply source, and an injecting device for injecting the powdery heat insulating material. and a nozzle lta for blowing into the sleeve 2 (in the illustrated embodiment, the insulating agent supply mechanism includes a
Only the nozzle part is shown), the nozzle 11
The powder heat insulating agent is blown out from the nozzle 11a by placing the tube a facing the injection port of the injection sleeve 2, or by inserting it into the injection sleeve 2 from the injection port, or by once inserting it into the injection sleeve 2 and pulling it out. The index sleeve 2 is filled with powder heat insulating material.
尚、粉状断熱剤を射出スリーブ２内へ吹き込むための吹
込口としては、射出スリーブ２に格別に開口形成しても
良いことは勿論、射出スリーブ２の注湯口６や射出口２
ａを兼用しても良い。又、粉状断熱剤を射出スリーブ２
内へ吹き込み充満させる場合、その効率を向上させるた
めにノズル１１ａにディフエーザー（拡散器）を取付け
たり、或いは２ケ所以上の吹込口から同時もしくは別々
にまたは間欠的に吹き込んだり、または吹込口から吹き
込みながらその反対側から吸引するようにしても良い。Incidentally, as an inlet for blowing the powder heat insulating agent into the injection sleeve 2, it is of course possible to form a special opening in the injection sleeve 2, and the inlet 6 or the injection outlet 2 of the injection sleeve 2 may be used.
a may also be used. In addition, the powdered heat insulating material is injected into the sleeve 2.
When filling the air with air, a diffuser is attached to the nozzle 11a in order to improve its efficiency, or the air is blown simultaneously or separately or intermittently from two or more blowing holes, or the air is blown from two or more blowing holes. However, the suction may be performed from the opposite side.
又、本発明に用いられる粉状断熱剤としては、溶湯と非
反応性の粉体、詳しくは例えばボロンや滑石等の帯電性
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
粉体などを挙げることができ、その中でも特に、射出ス
リーブ２内面に対するプランジャチップ７の摺滑性を向
上させる上で、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。In addition, the powder heat insulating agent used in the present invention may be a powder that is non-reactive with the molten metal, specifically a powder that has charging properties such as boron or talc, or a metal oxide, metal sulfide, or metal nitride. powder, or a powder obtained by mixing these powders with resin powder, etc. Among them, in particular, powder state Therefore, it is preferable to use a powder that has self-lubricating properties.
而して、射出スリーブ２内に、高電圧発生器９に接続さ
れた一方の電極９ａを電極搬送機構１０でもって挿入さ
せると共に、断熱剤供給機構（ノズル１１ａ ） １１
でもって粉状断熱剤を吹ぎ込み充満させながら又は吹き
込み充満させた後、ｉａ電圧発生器９でもってその一方
の電極９ａと他方の電極９ｂとの間に高電圧をかけて、
射出スリーブ２内面と一方の電極９ａとの間に静電電界
を発生せしめ、射出スリーブ２内の粉状断熱剤を帯電さ
せる。すると、帯電した粉状断熱剤が射出スリーブ２の
内面に瞬間的に付着塗布され、射出スリーブ２の内面に
第５図に示す如く、粉状断熱剤２１と空隙２２とからな
る断熱層２３が形成される。然る後、一方の電ｌＩ！９
ａを電極搬送機構１０でもって射出スリーブ２内から引
き抜き、射出スリーブ１内に溶湯を給渇し、プランジャ
チップ７でもって金型のキャビティ８内に射出充填して
製品を鋳造する。従って、射出スリーブ２内面への粉状
断熱剤の塗布は鋳造サイクル毎に行なわれることになる
。Then, one electrode 9a connected to the high voltage generator 9 is inserted into the injection sleeve 2 using the electrode transport mechanism 10, and the heat insulating agent supply mechanism (nozzle 11a) 11
While blowing and filling the powder heat insulating agent, or after blowing and filling, a high voltage is applied between the one electrode 9a and the other electrode 9b using the IA voltage generator 9,
An electrostatic field is generated between the inner surface of the injection sleeve 2 and one electrode 9a, and the powder heat insulating agent inside the injection sleeve 2 is charged. Then, the charged powder heat insulating agent is instantaneously adhered and applied to the inner surface of the injection sleeve 2, and a heat insulating layer 23 consisting of the powder heat insulator 21 and voids 22 is formed on the inner surface of the injection sleeve 2, as shown in FIG. It is formed. After that, one electrician! 9
A is pulled out from the injection sleeve 2 by the electrode transport mechanism 10, molten metal is supplied into the injection sleeve 1, and the plunger tip 7 is used to inject and fill the mold cavity 8 to cast a product. Therefore, application of the powdered heat insulating agent to the inner surface of the injection sleeve 2 is performed every casting cycle.
次に、第６図以下に示した各実施例について順に説明す
る。これら各実施例のものは、前述した第１実施例のも
のと電極搬送機構１０の具体的構成が相違するだけで、
射出スリーブ２内面への粉状断熱剤の塗布原理は勿論の
こと、その余の機構構成は前述した第１実施例と同じで
あり、同じ構成部材は同じ符号で示しその説明を省略す
る。Next, each of the embodiments shown in FIG. 6 and subsequent figures will be explained in order. Each of these embodiments differs from that of the first embodiment described above only in the specific configuration of the electrode transport mechanism 10.
The principle of applying the powder heat insulating agent to the inner surface of the injection sleeve 2, as well as the rest of the mechanical structure, are the same as in the first embodiment described above, and the same constituent members are designated by the same reference numerals and their explanation will be omitted.
先づ、第６図に示した第２実施例に係る電極搬送機構１
０は、射出スリーブ２の射出口２ａ直下に設置した昇降
台２５上に、高電圧発生器９とコード２０でもって電気
的に接続された一方の電極９ａを巻回したリール２６を
設置づると共に、上記電極９ａを連結させた搬送車２７
を載置せしめて、リール２６に巻回した一方の電極９ａ
を搬送車２７でもって射出スリーブ２内へ射出口２ａか
ら出し入れ自在なるように構成したものである。従って
、この第２実施例の場合、ダイカストマシンＡの型開き
時に昇降台２５を射出スリーブ２の射出口２ａとほぼ同
じ高さ位置に上昇さゼ、然る後に搬送車２７を自走させ
るか或いはリール２６を巻き戻し方向に回転させれば、
搬送車２７が射出スリーブ２内部に進入して高電圧発生
器９に接続された一方のｍ極９ａが射出スリーブ２内に
挿入張設される。そして、塗布後一方の電極９ａをリー
ル２６に巻き取り搬送車２７を昇降台２５上に復帰させ
て、一方の電極９ａを射出スリーブ２の射出口２ａから
引き扱き、然る後昇降台２５を下降させるものである。First, the electrode transport mechanism 1 according to the second embodiment shown in FIG.
0, a reel 26 wound around one electrode 9a electrically connected to the high voltage generator 9 by a cord 20 is installed on a lifting platform 25 installed directly below the injection port 2a of the injection sleeve 2. , a transport vehicle 27 to which the electrodes 9a are connected.
One electrode 9a is wound around the reel 26 with
It is configured such that it can be freely taken in and out of the injection sleeve 2 through the injection port 2a using a transport vehicle 27. Therefore, in the case of the second embodiment, when the mold of the die-casting machine A is opened, the lifting platform 25 is raised to approximately the same height as the injection port 2a of the injection sleeve 2, and then the carrier 27 is allowed to move on its own. Alternatively, if the reel 26 is rotated in the rewinding direction,
The carrier vehicle 27 enters the injection sleeve 2, and one m-pole 9a connected to the high voltage generator 9 is inserted into the injection sleeve 2 and stretched. After coating, one electrode 9a is wound onto the reel 26, the conveyance vehicle 27 is returned to the lifting platform 25, the one electrode 9a is pulled out from the injection port 2a of the injection sleeve 2, and then the lifting platform 25 is It is meant to be lowered.
又、第７図に示した第３実施例に係る電極搬送機構１０
は、前述した第２実施例の変形例であり、搬送車を用い
ずに、リール２６に巻回した一方の電極９ａを直接射出
スリーブ２内へ出し入れ自在なるように構成したもので
ある。従って、この第３実施例の場合、高電圧発生器９
に接続された一方の電極９ａが射出スリーブ２内で折れ
曲らないように、リール２６の前方に設置した繰出し器
２８でもって一方の電極９ａを断面略Ｖ字形に変形可能
に形成して剛性を持たせる必要がある。Further, the electrode transport mechanism 10 according to the third embodiment shown in FIG.
This is a modification of the second embodiment described above, and is configured so that one electrode 9a wound around a reel 26 can be directly inserted into and taken out from the injection sleeve 2 without using a carrier. Therefore, in this third embodiment, the high voltage generator 9
In order to prevent the one electrode 9a connected to the injection sleeve 2 from bending, the one electrode 9a is formed so as to be deformable into a substantially V-shaped cross section using a feeder 28 installed in front of the reel 26 to provide rigidity. It is necessary to have
更に、第８図に示した第４実施例に係る電極搬送機構１
０は、前述した第２実施例の別の変形例であり、搬送車
の替りに高電圧発生器９に接続された一方の電極９ａの
先端部９’ ａにブラシ様の絶縁性支持体３０を放射状
に突設させて、一方の電極９ａをリール２６と絶縁性支
持体３０とでもってだれないように支持させ出し入れ自
在に構成したものである。Furthermore, the electrode transport mechanism 1 according to the fourth embodiment shown in FIG.
0 is another modification of the second embodiment described above, in which a brush-like insulating support 30 is attached to the tip 9'a of one electrode 9a connected to the high voltage generator 9 instead of the carrier. are arranged in a radial manner, one electrode 9a is supported by a reel 26 and an insulating support 30 so as not to sag, and can be taken in and out.
又、第９図に示した第５実施例に係る電極搬送機構１０
は、前述した第２実施例の更に別の変形例であり、搬送
車２７をエアシリンダ式にエアーでもって進退移動させ
るように構成したものである。Further, the electrode transport mechanism 10 according to the fifth embodiment shown in FIG.
This is still another modification of the second embodiment described above, and is configured to move the carrier vehicle 27 forward and backward using air in an air cylinder type manner.
尚、この第４実施例の変形例として、一方の電極９ａの
先端部９’ ａを直接ピストン部材２９に連結支持させ
るようにすることも考えられ、この様にすれば搬送車２
７は必要なくなる。Incidentally, as a modification of the fourth embodiment, it is also possible to connect and support the tip end 9'a of one electrode 9a directly to the piston member 29, and in this way, the transport vehicle 2
7 is no longer needed.
以上説明した第２実施例乃至第５実施例において、射出
スリーブ２内面に粉状断熱剤を静電塗布する場合、高電
圧発生器９に接続された一方の電極９ａを射出スリーブ
２内に挿入した後、粉状断熱剤を射出スリーブ２内に断
熱剤供給機構（ノズル１１ａ ） １１でもって吹き込
み又は吹ぎ込みながら、その状態でもって射出スリーブ
２内面と一方の電極９ａとの間に高電圧をかけても良い
し、或いは射出スリーブ２内に一旦挿入した一方の電極
９ａをリール２６に巻取り後退させながら、同時に射出
スリーブ２内に粉状断熱剤を吹き込みながら射出スリー
ブ２内面と一方の電極９ａとの間に高電圧をかけること
も可能である。特に後右の場合、一方の電極９ａの先端
部９’ ａのみを放電可能な電極とすることが出来ると
共に、粉状断熱剤を例えば射出スリー１２の注湯口６か
ら吹ぎ込みながら射出口２ａ側から吸引してやることに
より、−層均一で且つクリーンな静電塗布が可能となる
。In the second to fifth embodiments described above, when electrostatically applying the powder heat insulating agent to the inner surface of the injection sleeve 2, one electrode 9a connected to the high voltage generator 9 is inserted into the injection sleeve 2. After that, while blowing or injecting the powdered heat insulating agent into the injection sleeve 2 with the heat insulating agent supply mechanism (nozzle 11a) 11, a high voltage is applied between the inner surface of the injection sleeve 2 and one electrode 9a. Alternatively, one electrode 9a that has been inserted into the injection sleeve 2 may be wound around the reel 26 and retracted, while at the same time blowing a powdered heat insulating agent into the injection sleeve 2. It is also possible to apply a high voltage between the electrode 9a and the electrode 9a. Particularly in the case of the rear right, only the tip 9'a of one electrode 9a can be used as an electrode capable of discharging, and the powdered heat insulating agent can be injected into the injection port 2a from the pouring port 6 of the injection sleeve 12, for example. By suctioning from the side, uniform and clean electrostatic coating is possible.
又、第１０図に示した第６実施例に係る電極搬送機構１
０は、射出スリーブ２の射出口２ａ直下に設置した昇降
台２５上に高電圧発生器９に接続された一方の電極９ａ
の繰出し器３１と加熱器３２とを設置すると共に、その
加熱器３２の上部に形状記憶合金で形成したコイル３３
を設置せしめ、そのコイル３３先端に一方の電極９ａ先
端を接続し、上記加熱器３２でコイル３３を加熱・冷ｕ
１することによりコイル３３を伸縮させて、一方の電極
９ａを射出スリーブ２の射出口２ａから出し入れ自在な
るように構成したものである。Further, the electrode transport mechanism 1 according to the sixth embodiment shown in FIG.
0 is one electrode 9a connected to a high voltage generator 9 on a lifting platform 25 installed directly below the injection port 2a of the injection sleeve 2.
A coil 33 formed of a shape memory alloy is installed on the top of the heater 32.
The tip of one electrode 9a is connected to the tip of the coil 33, and the coil 33 is heated and cooled by the heater 32.
1, the coil 33 is expanded and contracted, and one electrode 9a is configured to be freely inserted and removed from the injection port 2a of the injection sleeve 2.
又、第１１図に示した第７実施例に係る電極搬送機構１
０は、高電圧発生器９とコード２０でもって接続された
一方の電極９ａを伸縮自在なロッドアンテナ様に形成せ
しめて昇降台２５上に設置し、射出スリーブ２の射出口
２ａから出し入れ自在なるように構成したものである。Further, the electrode transport mechanism 1 according to the seventh embodiment shown in FIG.
0, one electrode 9a connected to the high voltage generator 9 by a cord 20 is formed like a telescoping rod antenna and installed on a lifting platform 25, so that it can be taken in and out from the injection port 2a of the injection sleeve 2. It is configured as follows.
更に、第１２図に示した第８実施例に係る電極搬送機構
１０は、昇降台２５上に設置したリール２６に高電圧発
生器９に接続された一方の電極９ａ＠巻回すると共に、
一方の電極９ａの先端に絶縁材３４を介してマグネット
３５を取付け、そのマグネット３５をプランジャチップ
７に吸着させることにより高電圧発生器９に接続された
一方の電極９ａを射出スリーブ２の射出口２ａから出し
入れ自在なるように構成したものである。Furthermore, the electrode transport mechanism 10 according to the eighth embodiment shown in FIG.
A magnet 35 is attached to the tip of one electrode 9a via an insulating material 34, and by adsorbing the magnet 35 to the plunger tip 7, one electrode 9a connected to the high voltage generator 9 is connected to the injection port of the injection sleeve 2. It is configured so that it can be taken in and taken out from 2a.
そして、第１３図及び第１４図に示した第９実施例に係
る電極搬送機構１０は、細帯状に形成したマグネット板
３６に絶縁材３７を介して高電圧発生器９に接続された
一方の電極９ａを吊下げ支持させて、射出スリーブ２の
注湯口６から出し入れ自在なるように構成したちである
。The electrode transport mechanism 10 according to the ninth embodiment shown in FIG. 13 and FIG. The electrode 9a is suspended and supported so that it can be taken in and out from the pouring port 6 of the injection sleeve 2.
又、第１５図に示した第１０実施例のものは、射出スリ
ーブ２の注湯口６から水ＤＡ ｔ）Ｊノズル３８を出し
入れ自在に挿入すると共に、射出スリーブ２の割出口２
ａ側に水受け３９を昇降自在に設置せしめ、水噴射ノズ
ル３８から水受け３９に渡って線状に噴射させた水柱を
射出スリーブ２内に挿入させる一方の電極９ａとしたも
のである。In addition, in the tenth embodiment shown in FIG.
A water receiver 39 is installed on the a side so that it can be raised and lowered, and one electrode 9a serves as one electrode 9a for inserting a water column linearly sprayed from a water injection nozzle 38 over the water receiver 39 into the injection sleeve 2.
更に、第１６図に示した第１１実施例に係る電極搬送機
構１０は、８電圧発生器９とコード２０でもって。Further, the electrode transport mechanism 10 according to the eleventh embodiment shown in FIG. 16 has an eight-voltage generator 9 and a cord 20.
電気的に接続した一方の電極９ａを可動金型５に貫通さ
せ、その一方の電極９ａを可動盤４に取付けた駆動用シ
リンダ４０でもって分流子５ａから出没自在となるよう
に構成したものである。従って、この第１１実施例の場
合、型閉した後に一方の電極９ａを分流子５ａから突出
させて射出スリーブ２内に挿入せしめ、その状態でもっ
て射出スリーブ２内に粉状断熱剤を吹き込み充満させる
ことになる。尚、図中４１は一方の電極９ａと駆動用シ
リンダ４０とを連結するための絶縁性カップリングであ
り、４２は一方の電極９ａと可動金型５との絶縁性を保
持するための絶縁材である。One electrically connected electrode 9a is passed through the movable mold 5, and the one electrode 9a is configured to be freely retractable from the shunt 5a by means of a driving cylinder 40 attached to the movable platen 4. be. Therefore, in the case of the eleventh embodiment, after the mold is closed, one electrode 9a is made to protrude from the flow divider 5a and inserted into the injection sleeve 2, and in this state, the injection sleeve 2 is blown with powdered heat insulating agent to fill it. I will let you do it. In the figure, 41 is an insulating coupling for connecting one electrode 9a and the driving cylinder 40, and 42 is an insulating material for maintaining insulation between one electrode 9a and the movable mold 5. It is.
そして、第１７図に示した第１２実施例に係る電極搬送
機構１０は、高電圧発生器９に接続された一方の電極９
ａをプランジャチップ７から出没自在となるように構成
したものである。The electrode transport mechanism 10 according to the twelfth embodiment shown in FIG. 17 has one electrode 9 connected to the high voltage generator 9.
A is constructed so that it can freely extend and retract from the plunger chip 7.
〈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
置は斯様に構成したので、静電気による吸着力でもって
粉状断熱剤を射出スリーブの内面に容易且つ確実に、し
かもむらなく均一に塗布することが出来る。<Effects of the Invention> Since the apparatus for applying the powder heat insulating agent to the inner surface of the injection sleeve according to the present invention is configured in this way, the powder heat insulator can be easily and reliably applied to the inner surface of the injection sleeve by the adsorption force due to static electricity. Moreover, it can be applied evenly and evenly.
よって、所期の目的を達成し得る。Therefore, the intended purpose can be achieved.
第１図乃至第４図は本発明の第１実施例を示し、第１図
は高電圧発生器に接続された一方の電極を射出スリーブ
内に挿入する前の状態を示す断面図、第２図は一方の電
極を射出スリーブ内へ挿入した後の状態を示す断面図、
第３図は第２図の状態における側面図、第４図は電極搬
送機構のアームを射出スリーブ直上位置から水平方向に
移動させた状態の平面図である。
又、第５図は射出スリーブの内面に粉状断熱剤を塗布し
た状態を説明する模式図である。
又、第６図乃至第１３図は本発明の第２乃至第９実施例
を示す断面図であり、第１４図は第１３図の（１４）
−（１４）線断面図、第１５図乃至第１７図は本発明の
第１０乃至第１２実施例を示す断面図である。
図中
Ａ：ダイカストマシン ２：射出スリーブ９：ｔ４電
圧発生鼎 ９ａニ一方の電極９ｂ：他方の電極
１０：電極搬送機構１に断熱剤供給Ｉａ構
１１ａ：ノズル特 許 出 願 人
株式会社アーレスティ
第
図1 to 4 show a first embodiment of the present invention, in which FIG. 1 is a sectional view showing a state before one electrode connected to a high voltage generator is inserted into an injection sleeve, and FIG. The figure is a cross-sectional view showing the state after inserting one electrode into the injection sleeve.
3 is a side view of the state shown in FIG. 2, and FIG. 4 is a plan view of the state in which the arm of the electrode transport mechanism has been moved in the horizontal direction from a position directly above the injection sleeve. Further, FIG. 5 is a schematic diagram illustrating a state in which the powder heat insulating agent is applied to the inner surface of the injection sleeve. Further, FIGS. 6 to 13 are cross-sectional views showing the second to ninth embodiments of the present invention, and FIG.
-(14) line sectional views and FIGS. 15 to 17 are sectional views showing tenth to twelfth embodiments of the present invention. A in the figure: Die-casting machine 2: Injection sleeve 9: T4 voltage generator 9a, one electrode 9b: other electrode
10: Insulating agent supply Ia structure to electrode transport mechanism 1
11a: Nozzle patent application filed by Ahresty Co., Ltd.
Claims (1)
極及びマイナス電極と、上記一方の電極を射出スリーブ
の内部へ出し入れ自在に挿入搬送するための電極搬送機
構と、射出スリーブ内に粉状断熱剤を吹き込むための断
熱剤供給機構とで構成し、前記高電圧発生器の他方の電
極を射出スリーブ側に電気的に接続せしめ、射出スリー
ブ内面と該射出スリーブ内に挿入した前記一方の電極と
の間で静電電界を発生させて射出スリーブ内に吹き込ん
だ粉状断熱剤を射出スリーブ内面に塗布するようにした
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 high voltage generator, a positive electrode and a negative electrode connected to the high voltage generator, an electrode conveyance mechanism for inserting and conveying one of the electrodes into and out of the injection sleeve, and a powder inside the injection sleeve. the other electrode of the high voltage generator is electrically connected to the injection sleeve side, and the inner surface of the injection sleeve and the one electrode inserted into the injection sleeve are A device for applying powdered heat insulating material to the inner surface of an injection sleeve, characterized in that the powdered heat insulating material blown into the injection sleeve is applied to the inner surface of the injection sleeve by generating an electrostatic electric field between an electrode and an electrostatic field.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1023440A JPH078426B2 (en) | 1989-01-31 | 1989-01-31 | Device for applying powdery thermal insulation agent to the inner surface of the injection sleeve |
| KR1019890006956A KR930001050B1 (en) | 1988-05-25 | 1989-05-24 | Heat retaining method for molten metal supplied into injection sleeve and device therefor |
| US07/356,344 US5014765A (en) | 1988-05-25 | 1989-05-24 | Heat retaining method for molten metal supplied into injection sleeve, method of applying heat insulating powder onto an inner surface of the injection sleeve, and device therefor |
| DE68915332T DE68915332T2 (en) | 1988-05-25 | 1989-05-26 | Process for applying insulation powder to the inner surface of the injection sleeve and device therefor. |
| EP89305359A EP0344009B1 (en) | 1988-05-25 | 1989-05-26 | Method of applying heat insulating powder onto an inner surface of the injection sleeve, and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1023440A JPH078426B2 (en) | 1989-01-31 | 1989-01-31 | Device for applying powdery thermal insulation agent to the inner surface of the injection sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02205244A true JPH02205244A (en) | 1990-08-15 |
| JPH078426B2 JPH078426B2 (en) | 1995-02-01 |
Family
ID=12110559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1023440A Expired - Lifetime JPH078426B2 (en) | 1988-05-25 | 1989-01-31 | Device for applying powdery thermal insulation agent to the inner surface of the injection sleeve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078426B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4523207B2 (en) * | 2001-07-24 | 2010-08-11 | 株式会社アーレスティ | Method of inserting electrode rod or injection pipe into injection sleeve and its insertion device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539172A (en) * | 1976-07-13 | 1978-01-27 | Seiko Instr & Electronics Ltd | Crystal watch |
| JPS6142462A (en) * | 1984-08-07 | 1986-02-28 | Hanano Shoji Kk | Electrostatic spraying method of parting material for die casting |
| JPS62127150A (en) * | 1985-11-26 | 1987-06-09 | Asmo Co Ltd | Spray coating method for parting material to die for die casting |
| JPS63137539A (en) * | 1986-11-27 | 1988-06-09 | Ube Ind Ltd | Method of applying soot onto contacting face with molten metal |
| JPH0211259A (en) * | 1988-05-25 | 1990-01-16 | Ahresty Corp | Applying method for powderlike heat insulating agent to inside surface of injection sleeve |
-
1989
- 1989-01-31 JP JP1023440A patent/JPH078426B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539172A (en) * | 1976-07-13 | 1978-01-27 | Seiko Instr & Electronics Ltd | Crystal watch |
| JPS6142462A (en) * | 1984-08-07 | 1986-02-28 | Hanano Shoji Kk | Electrostatic spraying method of parting material for die casting |
| JPS62127150A (en) * | 1985-11-26 | 1987-06-09 | Asmo Co Ltd | Spray coating method for parting material to die for die casting |
| JPS63137539A (en) * | 1986-11-27 | 1988-06-09 | Ube Ind Ltd | Method of applying soot onto contacting face with molten metal |
| JPH0211259A (en) * | 1988-05-25 | 1990-01-16 | Ahresty Corp | Applying method for powderlike heat insulating agent to inside surface of injection sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH078426B2 (en) | 1995-02-01 |
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