JPS6329657U

JPS6329657U -

Info

Publication number: JPS6329657U
Application number: JP12302486U
Authority: JP
Priority date: 1986-08-11
Filing date: 1986-08-11
Publication date: 1988-02-26

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図
はダイカストマシンの射出スリーブ部の縦断面図
、第２図は同要部の拡大図、第３図は潤滑剤噴霧
状態の図、第４図は第２図４―４線断面図である
。尚図面中１は射出スリーブ、２０はプランジヤ
、２１はチツプ、２２はプランジヤロツド、２４
はスプレーヘツド、２４ｅは凹溝、２５は空間、
２６は噴出孔、２８は潤滑剤供給管である。 The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view of the injection sleeve portion of a die-casting machine, Fig. 2 is an enlarged view of the main part, Fig. 3 is a diagram of the lubricant spraying state, FIG. 4 is a sectional view taken along the line 4--4 in FIG. In the drawing, 1 is an injection sleeve, 20 is a plunger, 21 is a tip, 22 is a plunger rod, and 24
is a spray head, 24e is a groove, 25 is a space,
26 is a jet hole, and 28 is a lubricant supply pipe.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

円筒形の射出スリーブ内にプランジヤを摺動自
在に嵌装し、プランジヤ先端のチツプで該スリー
ブ内の溶湯を製品キヤビテイ内に射出供給し、プ
ランジヤの戻り行程で射出スリーブ内面に潤滑剤
を噴霧するようにしたダイカストマシンにおいて
、前記プランジヤチツプの軸方向後方にリング状
のスプレーヘツドを介装してプランジヤロツドを
連結し、該スプレーヘツドは外周にリング畳の凹
溝を備え、内部には該凹溝と同心的なリング状空
間部を備え、該空間部と前記凹溝表面とは放射状
に径方向に貫設された複数の噴出孔で連通され、
該空間部をプランジヤロツドに付設した潤滑剤供
給路と連通接続したことを特徴とするダイカスト
マシンの射出スリーブ潤滑装置。 A plunger is slidably fitted into a cylindrical injection sleeve, the tip at the tip of the plunger injects and supplies the molten metal inside the sleeve into the product cavity, and the return stroke of the plunger sprays lubricant onto the inner surface of the injection sleeve. In such a die casting machine, a ring-shaped spray head is interposed axially rearward of the plunger tip to connect the plunger rod, and the spray head is provided with a ring-shaped concave groove on the outer periphery, and the concave groove is provided inside. a ring-shaped space concentric with the groove, the space and the groove surface communicate with each other through a plurality of ejection holes extending radially through the groove;
An injection sleeve lubricating device for a die-casting machine, characterized in that the space is connected in communication with a lubricant supply path attached to a plunger rod.