JPS62275558A - Plunger lubricating apparatus - Google Patents

Plunger lubricating apparatus

Info

Publication number
JPS62275558A
JPS62275558A JP11637086A JP11637086A JPS62275558A JP S62275558 A JPS62275558 A JP S62275558A JP 11637086 A JP11637086 A JP 11637086A JP 11637086 A JP11637086 A JP 11637086A JP S62275558 A JPS62275558 A JP S62275558A
Authority
JP
Japan
Prior art keywords
lubricant
sleeve
plunger
injection
face
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
Application number
JP11637086A
Other languages
Japanese (ja)
Inventor
Noriyuki Motomura
本村 則行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP11637086A priority Critical patent/JPS62275558A/en
Publication of JPS62275558A publication Critical patent/JPS62275558A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/2015Means for forcing the molten metal into the die
    • B22D17/2038Heating, cooling or lubricating the injection unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To prevent lack of lubrication between an injecting plunger and sleeve by arranging an opening part at the upper part of the injecting sleeve and supplying lubricant from this opening part to chamfering face and outer circumferential face of end face side in the injecting plunger. CONSTITUTION:The injecting plunger 11 is gone back and the chamfering face 22 at the end face side of molten metal pushing by the injecting plunger 11 and the outer circumferential face 23 of cylinder at the range of about a few mm from the chamfer face 22 is peeped out from a hole 27. Next, the lubricant is dripped or spouted on the chamfering face 22 and the outer circumferential face 23 of cylinder from a nozzle 28. By spouting high pressure air into the sleeve 24, the inner part of the sleeve 24 is cleaned, and next, the lubricant is supplied and the lubricant may be dried by dry air. In this way, the lubricating condition between the injecting plunger and sleeve is improved and injecting speed is stabilized.

Description

【発明の詳細な説明】 3、発明の詳細な説明 [産業上の利用分野] 本発明は横形コールドチャンバーダイカストマシンの射
出スリーブの底部の給湯口より給湯する場合のプランジ
ャ潤滑装置に関する。
Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a plunger lubricating device for supplying hot water from a hot water supply port at the bottom of an injection sleeve of a horizontal cold chamber die-casting machine.

[従来技術] 横形コールドチャンバーダイカストマシンにおいて、射
出スリーブの下部よりの給湯口より電磁ポンプ等で射出
スリーブに給湯する場合における射出プランジャの潤滑
は、第4図のように射出スリーブ12に摺動自在に表着
されている。射出プランジャ11の端面側より型開き時
に、スプレィ装置10などにより射出プランジャの端面
もしくは射出スリーブ12の内面を潤滑剤を噴霧してい
る。
[Prior Art] In a horizontal cold chamber die-casting machine, when hot water is supplied to the injection sleeve from the hot water supply port at the bottom of the injection sleeve using an electromagnetic pump or the like, the injection plunger is lubricated by sliding the injection plunger freely on the injection sleeve 12 as shown in Fig. 4. It is covered in. When the mold is opened from the end surface side of the injection plunger 11, lubricant is sprayed onto the end surface of the injection plunger or the inner surface of the injection sleeve 12 using a spray device 10 or the like.

[発明が解決しようとする問題点] 射出プランジャ11の溶湯押圧端面に対向したスプレィ
10から潤滑剤を噴出する。場合、射出スリーブ12は
射出プランジャ11によって一側が密閉された状態で噴
出するので、射出スリーブ12内の清掃が困難であるば
かりでなく、射出プランジャ11の溶湯押圧端面側の面
取面および円筒外周面への潤滑剤塗布は困難で、潤滑剤
供給不足になり、これが因で射出プランジャ11のかじ
りを誘発することもあった。
[Problems to be Solved by the Invention] Lubricant is ejected from the spray 10 facing the molten metal pressing end surface of the injection plunger 11. In this case, since the injection sleeve 12 is injected with one side sealed by the injection plunger 11, it is not only difficult to clean the inside of the injection sleeve 12, but also the chamfered surface on the molten metal pressing end side of the injection plunger 11 and the cylindrical outer periphery. Applying lubricant to the surfaces was difficult and resulted in insufficient lubricant supply, which could lead to galling of the injection plunger 11.

本発明の目的は射出スリーブ内の清掃と、射出プランジ
ャの溶湯押圧端面側の面取面および円筒外周面の潤滑不
足を防止したプランジャ潤滑方法を提供するにある。
An object of the present invention is to provide a plunger lubrication method that cleans the inside of an injection sleeve and prevents insufficient lubrication of the chamfered surface on the molten metal pressing end side of the injection plunger and the outer peripheral surface of the cylinder.

[問題点を解決するための手段] 第1図に示したように射出スリーブ24の上部に穴を開
口して射出プランジャ11の溶湯押圧端面側の面取面2
2および円筒外周面23を覗かせ、鎖式に露出した射出
プランジャ11の前記潤滑剤供給部分に潤滑剤を滴下又
はスプレィ装置で噴射する。
[Means for solving the problem] As shown in FIG. 1, a hole is opened in the upper part of the injection sleeve 24 to form a chamfered surface 2 on the molten metal pressing end surface side of the injection plunger 11.
2 and the cylindrical outer circumferential surface 23, and the lubricant is dripped or sprayed onto the lubricant supply portion of the injection plunger 11 exposed in a chain manner.

〔作用〕[Effect]

横形コールドチャンバーダイカストマシンで、射出スリ
ーブの下部から該スリーブに溶湯を給湯する射出プラン
ジャの潤滑方法において、射出スリーブの上部に穿設し
て開口部を設け、該開口部に射出プランジャの溶湯押圧
端面の面取面および外周面を露出して潤滑供給口より潤
滑剤を供給するようW或することにより、射出プランジ
ャへの潤滑剤が円滑に供給できる。
In a method for lubricating an injection plunger in a horizontal cold chamber die casting machine, in which molten metal is supplied to the sleeve from the lower part of the injection sleeve, an opening is provided in the upper part of the injection sleeve, and the molten metal pressing end surface of the injection plunger is inserted into the opening. The lubricant can be smoothly supplied to the injection plunger by exposing the chamfered surface and outer circumferential surface of the injection plunger and supplying the lubricant from the lubricant supply port.

潤滑供給口は乾燥高圧空気を噴射して射出スリーブ内を
清掃し、次に潤滑剤を供給し次いで乾燥空気で潤滑剤を
乾燥させることも可能である。
The lubrication supply port can also inject dry high-pressure air to clean the inside of the injection sleeve, then supply lubricant, and then dry the lubricant with dry air.

C実施例] 以下、本発明を実施例に基づき詳細に説明する。第1図
は本発明の一実施例を示すもので、図中、第4図と同一
作用のものは同一符号で示して説明を省略する。24は
固定金型z5、固定グイプレート26に嵌着された射出
スリーブで、同スリーブ24の上部には穴27が穿設さ
れている。
C Example] Hereinafter, the present invention will be described in detail based on Examples. FIG. 1 shows an embodiment of the present invention, and in the figure, parts having the same functions as those in FIG. 4 are designated by the same reference numerals, and the explanation thereof will be omitted. Reference numeral 24 denotes an injection sleeve fitted to the fixed mold z5 and the fixed gouge plate 26, and a hole 27 is bored in the upper part of the sleeve 24.

前記穴27の開口部は射出スリーブ24に摺lh自在に
嵌挿されている射出プランジャ11の溶湯押圧端面側の
面取面22および円筒外周面23をノズル28で潤滑剤
を滴下するかもしくは噴射できる程度の開口部を具えて
いる。29は給湯管で、図示しない電磁ポンプ等の給湯
装置に連結している。
The opening of the hole 27 is provided with a nozzle 28 that drips or injects lubricant onto the chamfered surface 22 and cylindrical outer peripheral surface 23 of the molten metal pressing end surface of the injection plunger 11, which is slidably inserted into the injection sleeve 24. It has as many openings as possible. A hot water supply pipe 29 is connected to a hot water supply device such as an electromagnetic pump (not shown).

穴27より射出プランジャ11に潤滑剤を滴下もしくは
噴射する場合は、射出プランジャ11を後退させて射出
プランジャ11の溶湯押圧端面側の面取面22および該
面取面22より円筒外周面23を数−へ程度の範囲を穴
27から覗かせるようにしておく、この状態で面取面2
2および外周面23の数−への範囲をノズル28によっ
て潤滑剤を滴下もしくは噴射するかまたは噴射スプレィ
装置(図示せず)等で潤滑剤を供給する。
When dropping or injecting lubricant into the injection plunger 11 from the hole 27, the injection plunger 11 is moved backward and the cylindrical outer peripheral surface 23 is separated from the chamfered surface 22 on the molten metal pressing end surface side of the injection plunger 11 and the chamfered surface 22. In this state, the chamfered surface 2
2 and the outer circumferential surface 23 by dropping or spraying the lubricant through the nozzle 28 or supplying the lubricant with a spray device (not shown) or the like.

第3図は他の実施例を示したもので、図中第1図に同一
作用のものは同一符号を示して説明を省略する。ノズル
30は空気開閉弁31、潤滑開閉弁33をそれぞれ介し
て乾燥高圧空気源32、潤滑剤供給源34に連結されて
いる。
FIG. 3 shows another embodiment, in which parts having the same functions as those in FIG. The nozzle 30 is connected to a dry high-pressure air source 32 and a lubricant supply source 34 via an air on-off valve 31 and a lubrication on-off valve 33, respectively.

かかる構成においてはまず空気開閉弁31を励磁させて
乾燥高圧空気源32より乾燥の高圧空気を射出スリーブ
24内に噴射して内部を清掃し。
In this configuration, first, the air on-off valve 31 is energized and dry high-pressure air is injected into the injection sleeve 24 from the dry high-pressure air source 32 to clean the inside.

次に潤滑剤開閉弁33を励磁して潤滑剤を供給し、ノズ
ル30で乾燥空気と潤滑剤を混合して空気圧で噴射する
0次いで潤滑開閉弁33を非励磁(図示の状態)にして
乾燥空気で潤滑剤を乾燥させ、空気開閉弁31を非励磁
(図示の状態)にして潤滑剤の供給が完了する。
Next, the lubricant on-off valve 33 is energized to supply lubricant, and the nozzle 30 mixes dry air and lubricant and injects the mixture using air pressure.Next, the lubrication on-off valve 33 is de-energized (state shown) to dry the lubricant. The lubricant is dried with air, and the air on-off valve 31 is de-energized (state shown) to complete the supply of the lubricant.

[考案の効果] 射出プランジャおよび射出スリーブの潤滑状態が向上し
、射出速度が安定するとともに、射出プランジャおよび
射出スリーブの寿命が向上する。
[Effects of the invention] The lubrication state of the injection plunger and the injection sleeve is improved, the injection speed is stabilized, and the life of the injection plunger and the injection sleeve is improved.

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

第1図は本発明の一実施例を示す要部断面図、第2図は
射出スリーブの上部開口の平面図、第3図は本発明の他
の実施例の要部断面図。 第4図は従来令を示す要部断面図である。 11・・・射出プランジャ、22・・・面取面、23・
・・円筒外周面、24・−・射出スリーブ、25・・・
固定金型、26・・・固定ダイトプレート、27・・・
穴。 28・・・ノズル、29・・・給湯管、30・・・ノズ
ル。 31・・・空気開閉弁、32・・・乾燥高圧空気源、3
3・・・潤滑剤開閉弁、34・・・潤滑剤供給源。
FIG. 1 is a sectional view of a main part showing one embodiment of the present invention, FIG. 2 is a plan view of an upper opening of an injection sleeve, and FIG. 3 is a sectional view of a main part of another embodiment of the invention. FIG. 4 is a sectional view of a main part showing a conventional model. 11... Injection plunger, 22... Chamfered surface, 23...
... Cylindrical outer peripheral surface, 24... Injection sleeve, 25...
Fixed mold, 26...Fixed die plate, 27...
hole. 28... Nozzle, 29... Hot water pipe, 30... Nozzle. 31...Air on/off valve, 32...Dry high pressure air source, 3
3... Lubricant on/off valve, 34... Lubricant supply source.

Claims (2)

【特許請求の範囲】[Claims] (1)横形コールドチャンバーダイカストマシンで射出
スリーブの下部から該スリーブに溶湯を給湯する射出プ
ランジャの潤滑に於いて、射出スリーブの上部に穿設し
て開口部を設け、該開口部に射出プランジャの溶湯押圧
端面側の面取面および外周面を露出して潤滑供給口より
潤滑剤を供給することを特徴とするプランジャ潤滑装置
(1) When lubricating the injection plunger that supplies molten metal from the bottom of the injection sleeve to the sleeve in a horizontal cold chamber die-casting machine, an opening is provided in the upper part of the injection sleeve, and the injection plunger is inserted into the opening. A plunger lubricating device characterized in that a chamfered surface and an outer circumferential surface on the molten metal pressing end side are exposed and lubricant is supplied from a lubricant supply port.
(2)潤滑供給口は乾燥高圧空気を噴射して射出スリー
ブ内を清掃し、次に潤滑剤を供給し、次いで乾燥空気で
潤滑剤を乾燥させることを特徴とする特許請求の範囲第
1項記載のプランジャ潤滑装置。
(2) The lubricant supply port injects dry high-pressure air to clean the inside of the injection sleeve, then supplies lubricant, and then dries the lubricant with dry air. Plunger lubrication device as described.
JP11637086A 1986-05-21 1986-05-21 Plunger lubricating apparatus Pending JPS62275558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11637086A JPS62275558A (en) 1986-05-21 1986-05-21 Plunger lubricating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11637086A JPS62275558A (en) 1986-05-21 1986-05-21 Plunger lubricating apparatus

Publications (1)

Publication Number Publication Date
JPS62275558A true JPS62275558A (en) 1987-11-30

Family

ID=14685293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11637086A Pending JPS62275558A (en) 1986-05-21 1986-05-21 Plunger lubricating apparatus

Country Status (1)

Country Link
JP (1) JPS62275558A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305411A (en) * 1992-04-29 1993-11-19 Nippondenso Co Ltd Device and method for spraying solid lubricator
DE102019107319A1 (en) * 2019-03-21 2020-09-24 Engel Austria Gmbh Melting unit for a shaping machine, shaping machine and method for operating such

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305411A (en) * 1992-04-29 1993-11-19 Nippondenso Co Ltd Device and method for spraying solid lubricator
US5388631A (en) * 1992-04-29 1995-02-14 Nippondenso Co., Ltd. Die-casting apparatus with spraying device for solid lubricant and device for cleaning nozzles
DE102019107319A1 (en) * 2019-03-21 2020-09-24 Engel Austria Gmbh Melting unit for a shaping machine, shaping machine and method for operating such
DE102019107319B4 (en) 2019-03-21 2022-09-08 Engel Austria Gmbh Melting unit for a shaping machine, shaping machine and method for operating one

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