JPS5592263A - Injection pump of hot chamber type diecasting machine - Google Patents

Injection pump of hot chamber type diecasting machine

Info

Publication number
JPS5592263A
JPS5592263A JP16343278A JP16343278A JPS5592263A JP S5592263 A JPS5592263 A JP S5592263A JP 16343278 A JP16343278 A JP 16343278A JP 16343278 A JP16343278 A JP 16343278A JP S5592263 A JPS5592263 A JP S5592263A
Authority
JP
Japan
Prior art keywords
supply
molten metal
cylinder
groove
discharge hole
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
JP16343278A
Other languages
Japanese (ja)
Inventor
Nobuo Kashiwagi
Hiroaki Abe
Kichizo Komiyama
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 JP16343278A priority Critical patent/JPS5592263A/en
Publication of JPS5592263A publication Critical patent/JPS5592263A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: To prevent molten metal from depositing and gathering on the plunger rod when injecting, by providing a specified groove, or a plurality of supply-discharge holes, in one of cylinder with supply-discharge hole or plunger tip, of the captioned injection pump for molten metal of Al, Zn alloy or the like.
CONSTITUTION: A cylinder 31 housed in said injection pump main body 9 is provided with a supply-discharge hole 32 in the radial direction to supply molten metal 13 of Al or the like therein. For example, a groove 33 penetrating thereto is provided in the inner circumference of the cylinder, and the area of the groove 33 permitting the molten metal 13 to flow into the direction of the supply-discharge hole 32 is made larger than the gap area between the cylinder 31 and plunger tip 11. By the initial low speed, and subsequent high speed advancement (in the lower direction of the drawing) of the plunger tip 11, the molten steel 13 is charged to fill up the die cavity which penetrates thereto, and injection completes. At this time, excess molten metal flows back by reaction, but the molten steel is selectively discharged from the supply-discharge hole through the groove 33 owing to said area relation, so that it may not deposit on the plunger rod 10.
COPYRIGHT: (C)1980,JPO&Japio
JP16343278A 1978-12-29 1978-12-29 Injection pump of hot chamber type diecasting machine Pending JPS5592263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16343278A JPS5592263A (en) 1978-12-29 1978-12-29 Injection pump of hot chamber type diecasting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16343278A JPS5592263A (en) 1978-12-29 1978-12-29 Injection pump of hot chamber type diecasting machine

Publications (1)

Publication Number Publication Date
JPS5592263A true JPS5592263A (en) 1980-07-12

Family

ID=15773774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16343278A Pending JPS5592263A (en) 1978-12-29 1978-12-29 Injection pump of hot chamber type diecasting machine

Country Status (1)

Country Link
JP (1) JPS5592263A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0422165U (en) * 1990-06-15 1992-02-24
US5594615A (en) * 1993-05-10 1997-01-14 Mti, Inc. Method and apparatus for reducing the intensity of magenetic field emissions from display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0422165U (en) * 1990-06-15 1992-02-24
US5594615A (en) * 1993-05-10 1997-01-14 Mti, Inc. Method and apparatus for reducing the intensity of magenetic field emissions from display device

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