GB2308559A - Removing aluminium films from a ladle of a gravity die casting machine using high pressure air - Google Patents

Removing aluminium films from a ladle of a gravity die casting machine using high pressure air Download PDF

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Publication number
GB2308559A
GB2308559A GB9626985A GB9626985A GB2308559A GB 2308559 A GB2308559 A GB 2308559A GB 9626985 A GB9626985 A GB 9626985A GB 9626985 A GB9626985 A GB 9626985A GB 2308559 A GB2308559 A GB 2308559A
Authority
GB
United Kingdom
Prior art keywords
ladle
degrees
die casting
angle
casting machine
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
GB9626985A
Other versions
GB2308559B (en
GB9626985D0 (en
Inventor
Kwang-Won Lee
Young-Namjun
Tae-Hee Kim
Chang-Bum Son
Dong-Won Lee
Sang-Duk Na
Tae-Eui Hong
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.)
Mando Machinery Corp
Original Assignee
Mando Machinery Corp
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 Mando Machinery Corp filed Critical Mando Machinery Corp
Publication of GB9626985D0 publication Critical patent/GB9626985D0/en
Publication of GB2308559A publication Critical patent/GB2308559A/en
Application granted granted Critical
Publication of GB2308559B publication Critical patent/GB2308559B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/001—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like devices for cleaning ladles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/06—Equipment for tilting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Meat, Egg Or Seafood Products (AREA)

Description

APPARATUS FOR AUTOMATICALLY REMOVING ALUMINUM FILMS FROM A LADLE OF A GRAVITY DIE CASTING MACHINE AND METHOD THEREFOR Field of the Invention The present invention relates to a gravity die casting machine; and, more particularly, to an apparatus and a method for automatically removing aluminum films from a ladle thereof.
Background of the Invention There is shown in Fig. 1A a conventional a gravity die casting machine employing an inclined molding.
As shown in Fig. lA, the gravity die casting machine includes a body 10 rotatably mounted to an axis 12 of a support 14 and a ladle assembly 20. The body 10 has a fixed mold 16, a moving mold 18 disposed on top of the fixed mold 16, a cavity 22 defined between the molds 16 and 18, and a runner 24 communicated to the cavity 22.
On the other hand, the ladle assembly 20, as best shown in Figs. 2A and 2B, has a pair of hydraulic cylinders 26 mounted to a lower portion of the fixed mold 16, a ladle 28 disposed adjacent to the runner 24, and a pair of ladle supporting members 30 connected between a bottom of the ladle 28 and a cylinder rod 32 of each of the hydraulic cylinders 30 so as to rotate the ladle 28 about a pivot axis 34.
When the body 10 is clockwise rotated about the axis 12 by an angle of 90 degrees as shown in Fig. 1B, a molten metal in the ladle 28 is poured into the cavity 22. After the pouring, the hydraulic cylinders 26 are actuated in a such way that the rod 32 is retracted, thereby allowing the ladle 28 to be rotated counterclockwise by an angle of 45 degrees as shown in Fig. 1C. Then, the body 10 is rotated counterclockwise about the axis 12 by an angle of 90 degrees as shown in Fig.
1D to allow aluminum films formed on an inner surface of the ladle 28 to be mannually worked.
Summary of the Invention It is, therefore, a primary object of the present invention to provide an apparatus and a method for automatically removing aluminum films on an inner surface of a ladle in a gravity die casting machine.
In accordance with one aspect of the present invention, there is provided a method for automatically removing aluminum films formed on an inner surface of a ladle in a gravity die casting machine, the method comprising the steps of: (a) pouring a molten metal in the ladle into a cavity between a fixed mold and a moving mold by rotating clockwise a body of the gravity die casting machine about an axis of a support member by an angle of 90 degrees; (b) rotating counterclockwise the ladle by an angle of 180 degrees; (c) rotating counterclockwise the body by an angle of 90 degrees; and (d) injecting a high pressure air through an air tube of the ladle to thereby remove the aluminum films.
In accordance with another aspect of the present invention, there is provided an apparatus for automatically removing aluminum films in a ladle, the apparatus comprising: a body rotatably mounted to an axis of a support, the body having a fixed mold, a moving mold disposed on top of the fixed mold, a cavity defined between the molds, and a runner communicated to the cavity; a ladle assembly disposed adjacent to the runner and having a ladle and an air tube formed at the ladle for injecting a high pressure air therethrough; and means for rotating clockwise and counterclockwise the ladle assembly by an angle of 180 degrees.
Brief descriPtion of the Drawings The above and other objects, and features of the present invention will become apparent from the following description given in conjunction with the accompanying drawings, wherein: Figs. 1A, 1B, 1C and 1D are schematic views for explaining the process for removing aluminum films from a ladle in a conventional gravity die casting machine; Figs. 2A and 2B are a plan view and a front elevational views of the ladle in Fig. 1, respectively; Figs. 3A, 3B, 3C and 3D are schematic views for illustrating the process for removing aluminum films from a ladle in an inventive gravity die casting machine; Figs. 4A and 4B are a plan view and a front elevational view of the ladle in Fig. 3, respectively; and Fig. 5 is an detailed sectional view of the ladle in Fig.
3.
Detailed Description of the Preferred Embodiments Referring now to the drawings, wherein like reference characters designate like or corresponding parts throughout, there is shown in Figs. 3A to 3D an inventive method for removing aluminum films from a ladle in accordance with a preferred embodiment of the present invention.
In accordance with the preferred embodiment of the present invention, first of all, when a body 10 is clockwise rotated about an axis 12 of a support 14 by an angle of 90 degrees in Fig. 3A, molten metal in a ladle 50 is poured into a cavity 22 between a fixed mold 16 and a moving mold 18.
Thereafter, the ladle 50 is rotated counterclockwise by an angle of 180 degrees, thereby separating the ladle 50 from the body 10 as shown in Fig. 3B.
When the molten metal in the cavity 22 is solidified, the solidified product is extracted from the body 10 by moving the moving mold 18.(not shown). Then, the body 10, as shown in Fig. 3C, is rotated counterclockwise by an angle of 90 degrees in such a way that the ladle 50 is overturned as shown in Fig.
3D. At this time, the aluminum films formed on an inner surface of the ladle 50 is automaticlly separated from the surface by its weights and a high pressure air injected through an air tube 52(Figs. 4 and 5) formed at the ladle 50 from an air source(not shown).
As described above, as best shown in Figs. 4A and 4B, the ladle 50 of a ladle assembly 40 in accordance with a preferred embodiment of the present invention is provided with an air tube 52 for injecting a high pressure air therethrough.
Further, the ladle assembly 40 includes a rotary actuator 44, a rotation portion 46 having a shaft 42 connected between a bottom of the ladle 50 and the rotation portion 46, and a chain 48 for transmitting the driving force of the rotary actuator 44 to the rotation portion 46 to thereby rotate counterclockwise and clockwise the ladle 50 by an angle of 180 degrees.
As shown in Fig. 5, it is preferred that the ladle 50 is composed of an insulating ceramic layer 62, a metallic layer 64, and an air tube 52, wherein the insulating ceramic layer 62 is the layer coming in contacted with the molten metal.
As described above, according to the present invention, aluminum films on an inner surface of a ladle in a gravity die casting machine employing an inclined molding are automatically removed. Further, an automation of a gravity die casting process is achieved.
Although the invention has been shown and described with respect to the preferred embodiments, it will be understood by modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims (4)

What is claimed is:
1. A method for automatically removing aluminum films formed on an inner surface of a ladle in a gravity die casting machine, the method comprising the steps of: (a) pouring a molten metal in the ladle into a cavity between a fixed mold and a moving mold by rotating clockwise a body of the gravity die casting machine about an axis of a support member by an angle of 90 degrees; (b) rotating counterclockwise the ladle by an angle of 180 degrees; (c) rotating counterclockwise the body by an angle of 90 degrees; and (d) injecting a high pressure air through an air tube of the ladle to thereby remove the aluminum films.
2. An apparatus for automatically removing aluminum films in a ladle, the apparatus comprising: a body rotatably mounted to an axis of a support, the body having a fixed mold, a moving mold disposed on top of the fixed mold, a cavity defined between the molds, and a runner communicated to the cavity; a ladle assembly disposed adjacent to the runner and having a ladle and an air tube formed at the ladle for injecting a high pressure air therethrough; and means for rotating clockwise and counterclockwise the ladle assembly by an angle of 180 degrees.
3. The apparatus of claim 2, wherein the ladle assembly rotating means includes a rotary actuator, a rotation portion having a shaft connected between a bottom of the ladle and the rotation portion, and a chain for transmitting the driving force of the rotary actuator to the rotation portion.
4. The apparatus of claim 3, wherein the ladle is composed of an insulating ceramic layer, a metallic layer, and the air tube, the insulating ceramic layer coming in contact with the molten metal.
GB9626985A 1995-12-27 1996-12-27 Gravity die casting apparatus with provision for automatically removing aluminium films from a ladle, and an associated method Expired - Fee Related GB2308559B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950059691A KR0177933B1 (en) 1995-12-27 1995-12-27 Tilting gravity casting apparatus

Publications (3)

Publication Number Publication Date
GB9626985D0 GB9626985D0 (en) 1997-02-12
GB2308559A true GB2308559A (en) 1997-07-02
GB2308559B GB2308559B (en) 1997-12-10

Family

ID=19445321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9626985A Expired - Fee Related GB2308559B (en) 1995-12-27 1996-12-27 Gravity die casting apparatus with provision for automatically removing aluminium films from a ladle, and an associated method

Country Status (4)

Country Link
JP (1) JP2795840B2 (en)
KR (1) KR0177933B1 (en)
CN (1) CN1064572C (en)
GB (1) GB2308559B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1350586A1 (en) * 2002-03-19 2003-10-08 Tiesse Robot S.p.A. Gravity casting method in a chill mould pivotable by a robot-controlled hydraulic axis

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990054882A (en) * 1997-12-26 1999-07-15 오상수 Aluminum casting gravity casting device
JP4411219B2 (en) * 2005-01-18 2010-02-10 光生アルミニューム工業株式会社 3D casting machine and 3D casting method
DE102014102724A1 (en) * 2013-12-03 2015-06-03 Nemak Linz Gmbh Process for the casting production of castings from a molten metal
CN104525865B (en) * 2014-11-29 2017-07-18 西安航空动力控制科技有限公司 Gravity tilted casting pouring basin
CN105328176B (en) * 2015-12-03 2017-07-14 重庆志成机械有限公司 A kind of rotatably adjustable blowning installation
CN108262472A (en) * 2017-01-03 2018-07-10 日轻商菱铝业（昆山）有限公司 A kind of automatic film-removing technology for aluminium alloy ingots surface film oxide
CN118180368B (en) * 2024-05-17 2024-07-16 兴化市精密铸钢有限公司 Sand casting pouring equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB711084A (en) * 1952-02-26 1954-06-23 Stanton Ironworks Co Ltd Improvements in or relating to ladle tilting apparatus for casting machines
GB1441935A (en) * 1972-10-06 1976-07-07 Frech Werkzeugbau Oskar Apparatus for ladling molten metal from a furnace and pouring it into a casting machine
GB1566574A (en) * 1975-12-15 1980-05-08 Engel W Automatically operating casting ladle apparatus
JPS63104775A (en) * 1986-10-20 1988-05-10 Izumi Jidosha Kogyo Kk Film removing device in ladle
JPH04237554A (en) * 1991-01-21 1992-08-26 Honda Kinzoku Gijutsu Kk Device and method for preventing oxidation of molten metal in stoke in low pressure casting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB711084A (en) * 1952-02-26 1954-06-23 Stanton Ironworks Co Ltd Improvements in or relating to ladle tilting apparatus for casting machines
GB1441935A (en) * 1972-10-06 1976-07-07 Frech Werkzeugbau Oskar Apparatus for ladling molten metal from a furnace and pouring it into a casting machine
GB1566574A (en) * 1975-12-15 1980-05-08 Engel W Automatically operating casting ladle apparatus
JPS63104775A (en) * 1986-10-20 1988-05-10 Izumi Jidosha Kogyo Kk Film removing device in ladle
JPH04237554A (en) * 1991-01-21 1992-08-26 Honda Kinzoku Gijutsu Kk Device and method for preventing oxidation of molten metal in stoke in low pressure casting apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan vol 12 no 343 (M-741) (3190) page 144 & JP 63 104 775 A *
Patent Abstracts of Japan vol 17 no 5 (M-1349) (5634) page 1& JP 04 237 554 A *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1350586A1 (en) * 2002-03-19 2003-10-08 Tiesse Robot S.p.A. Gravity casting method in a chill mould pivotable by a robot-controlled hydraulic axis

Also Published As

Publication number Publication date
KR0177933B1 (en) 1999-02-18
CN1158773A (en) 1997-09-10
GB2308559B (en) 1997-12-10
KR970033285A (en) 1997-07-22
JP2795840B2 (en) 1998-09-10
JPH09192817A (en) 1997-07-29
CN1064572C (en) 2001-04-18
GB9626985D0 (en) 1997-02-12

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20151227