EP0394988A3 - Lubrication device for an injection piston of a die casting machine - Google Patents

Lubrication device for an injection piston of a die casting machine Download PDF

Info

Publication number
EP0394988A3
EP0394988A3 EP19900107821 EP90107821A EP0394988A3 EP 0394988 A3 EP0394988 A3 EP 0394988A3 EP 19900107821 EP19900107821 EP 19900107821 EP 90107821 A EP90107821 A EP 90107821A EP 0394988 A3 EP0394988 A3 EP 0394988A3
Authority
EP
European Patent Office
Prior art keywords
lubricant
casting
chamber
piston
filling phase
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
Application number
EP19900107821
Other languages
German (de)
French (fr)
Other versions
EP0394988A2 (en
EP0394988B1 (en
Inventor
Wilfried Schwab
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.)
Maschinenfabrik Mueller Weingarten AG
Original Assignee
Maschinenfabrik Mueller Weingarten AG
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
Priority claimed from DE19893913494 external-priority patent/DE3913494C2/en
Application filed by Maschinenfabrik Mueller Weingarten AG filed Critical Maschinenfabrik Mueller Weingarten AG
Publication of EP0394988A2 publication Critical patent/EP0394988A2/en
Publication of EP0394988A3 publication Critical patent/EP0394988A3/en
Application granted granted Critical
Publication of EP0394988B1 publication Critical patent/EP0394988B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/203—Injection pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/2038—Heating, cooling or lubricating the injection unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

Die Erfindung betrifft eine Ausbildung des Gießkolbens einschließlich Kolbenstange an Druckgießmaschinen, wobei die Ausbildung eine Schmierung der äußeren Mantelfläche des Gießkolbens insbesondere im Endbereich der Formfüllphase erlaubt. The invention relates to an embodiment of the casting piston including piston rod on die casting machines, where the formation of a lubrication of the outer surface of the plunger, especially in the end area of the Mold filling phase allowed.

Bei allen bekannten Konstruktionen war keine Sicherheit dafür gegeben, daß die Schmierung insbesondere im Endbereich der Formfüllphase innerhalb der Gießkammer erfolgt. With all known constructions there was no security given that the lubrication especially in End area of the mold filling phase within the casting chamber he follows.

Dieses jedoch zu erreichen, ist das Ziel der vorliegenden Erfindung und wird dadurch erreicht, daß innerhalb der Gießkolbenstange (3) oder des Gießkolbens (2) selbst eine Schmierstoffkammer (1, 1a bzw. 1′) angeordnet ist, die zuflußseitig über eine, ggf. über die Kolbenstange (3, 3a, 3b) verlegte Schmierstoffleitung (4 bzw. 4a, 4d) mit Schmierstoff auffüllbar ist, wobei der Zufluß zur Schmierstoffkammer (1, 1a bzw. 1′) und der Schmierstoffleitung (4 bzw. 4a, 4d) durch ein Rückschlagventil (5, 5′) abdichtbar ist, daß die Schmierstoffkammer (1) abflußseitig über Schmierstoffleitungen (4a, 4b) und Bohrungen (6) oder - bei Anordnung der Schmierstoffkammer (1′) innerhalb des Gießkolbens (2) - direkt über Bohrungen (6) mit der Mantelfläche (2a) des Gießkolbens (2) in Verbindung steht und daß die Schmierstoffkammer (1, 1′) am Ende der Formfüllphase komprimierbar ist, wobei der Schmierstoff zur Mantelfläche (2a) gelangt. However, to achieve this is the aim of the present one Invention and is achieved in that within the Casting piston rod (3) or the casting piston (2) itself one Lubricant chamber (1, 1a or 1 ') is arranged, the on the inflow side via a, possibly via the piston rod (3, 3a, 3b) Lubricant line (4 or 4a, 4d) with Lubricant is refillable, the inflow to Lubricant chamber (1, 1a or 1 ') and the Lubricant line (4 or 4a, 4d) through a Check valve (5, 5 ') is sealable that the Lubricant chamber (1) on the discharge side Lubricant lines (4a, 4b) and bores (6) or - When arranging the lubricant chamber (1 ') within the Pouring piston (2) - directly over holes (6) with the The lateral surface (2a) of the casting piston (2) is connected and that the lubricant chamber (1, 1 ') at the end of Form filling phase is compressible, the lubricant reaches the outer surface (2a).

EP90107821A 1989-04-25 1990-04-25 Lubrication device for an injection piston of a die casting machine Expired - Lifetime EP0394988B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19893913494 DE3913494C2 (en) 1989-04-25 1989-04-25 Training of the casting piston including piston rod on die casting machines
DE3913494 1989-04-25
DE3913559 1989-04-25
DE3913559 1989-04-25

Publications (3)

Publication Number Publication Date
EP0394988A2 EP0394988A2 (en) 1990-10-31
EP0394988A3 true EP0394988A3 (en) 1991-08-14
EP0394988B1 EP0394988B1 (en) 1994-10-12

Family

ID=25880239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107821A Expired - Lifetime EP0394988B1 (en) 1989-04-25 1990-04-25 Lubrication device for an injection piston of a die casting machine

Country Status (2)

Country Link
EP (1) EP0394988B1 (en)
DE (1) DE59007420D1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH684485A5 (en) * 1992-11-17 1994-09-30 Ciba Geigy Ag Liquid detergent.
DE4243827A1 (en) * 1992-12-23 1994-06-30 Mueller Weingarten Maschf Casting set for a die casting machine
DE4316927A1 (en) * 1993-05-19 1994-11-24 Mueller Weingarten Maschf Casting set for a die casting machine
US6237672B1 (en) * 1998-12-30 2001-05-29 Dbm Industries, Ltd. Self lubricating and cleaning injection piston for cold chamber injection unit
DE19923341B4 (en) * 1999-05-21 2005-03-03 Audi Ag Method for operating a die casting machine and die casting machine for carrying out the method
MXPA04008188A (en) * 2002-02-21 2005-05-17 Chem Trend Inc Die casting machine with dispenser for solid lubricant, adapted to cause phase change of the lubricant prior to be dispensed to the shot sleeve.
EP1820584A1 (en) * 2006-02-21 2007-08-22 Tribo-Chemie GmbH Cold chamber pressure casting machine, process and lubricating agent therefor
CN105436457A (en) * 2016-01-12 2016-03-30 蒋安为 Die casting machine injection chamber lubricating and cooling device with control function
CN108160404B (en) * 2018-02-05 2023-12-08 艾润工业介质(镇江)有限公司 Portable lubricant extrusion device
CN110549572B (en) * 2019-09-16 2021-07-09 林小草 Mechanical equipment vertical compression mode locking device
DE102020107791A1 (en) 2020-03-20 2021-09-23 Ae Group Ag Injection molding machine and method of lubricating an injection molding machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1939227U (en) * 1965-08-20 1966-05-26 Druckguss Heidenau Veb DEVICE FOR PRESSURE LUBRICATION OF PISTONS ON DIE CASTING MACHINES.
CH436588A (en) * 1962-04-10 1967-05-31 Klueber Lubrication Austria Ge Device for the automatic lubrication of the ram of a cold chamber die casting machine
US3767012A (en) * 1970-12-15 1973-10-23 Ube Industries Automatic oiling arrangement of a die-casting machine
DE3316951A1 (en) * 1982-05-10 1983-11-17 Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi FULLY AUTOMATIC INJECTION MOLDING MACHINE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH436588A (en) * 1962-04-10 1967-05-31 Klueber Lubrication Austria Ge Device for the automatic lubrication of the ram of a cold chamber die casting machine
DE1939227U (en) * 1965-08-20 1966-05-26 Druckguss Heidenau Veb DEVICE FOR PRESSURE LUBRICATION OF PISTONS ON DIE CASTING MACHINES.
US3767012A (en) * 1970-12-15 1973-10-23 Ube Industries Automatic oiling arrangement of a die-casting machine
DE3316951A1 (en) * 1982-05-10 1983-11-17 Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi FULLY AUTOMATIC INJECTION MOLDING MACHINE

Also Published As

Publication number Publication date
DE59007420D1 (en) 1994-11-17
EP0394988A2 (en) 1990-10-31
EP0394988B1 (en) 1994-10-12

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