US3762605A - Control device for stopper of a casting container - Google Patents
Control device for stopper of a casting container Download PDFInfo
- Publication number
- US3762605A US3762605A US00148794A US3762605DA US3762605A US 3762605 A US3762605 A US 3762605A US 00148794 A US00148794 A US 00148794A US 3762605D A US3762605D A US 3762605DA US 3762605 A US3762605 A US 3762605A
- Authority
- US
- United States
- Prior art keywords
- limit stop
- stopper
- lifting
- adjustable limit
- stop means
- 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.)
- Expired - Lifetime
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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
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/20—Stopper-rod operating equipment
Definitions
- a stopper container including a stopper rod lnt. t t 4 is coupled a and lgwen'ng mechaof Search 3, ni5m
- This invention relates generally to casting control devices for casting in measured quantities and, more specifically, to a device for controlling a stopper of a casting container having a stopper lock which determines the quantity of liquid metal to be discharged.
- Stopper control means at casting containers have the purpose that liquid metal which is discharged through a nozzle cooperating with a stopper lock can be fed into a mold in accurately measured quantities.
- an object of this invention is to provide a control device for a casting container, which enables casting in accurately measured quantities without mixing slag with molten metal.
- Another object of this invention is to provide a control arrangement which makes it possible to maintain the desired direction of the poured-out liquid metal charge.
- the stopper rod is operatively coupled with a lifting and lowering mechanism, and provided with a stop piece facing an adjustable limit stop.
- the vertical position of the limit stop is controlled by a programmed control device for such a time period as it is desired for the predetermined quantity of the pouredout liquid metal.
- FIG. I is an elevational view, partly in section, of one embodiment of this invention.
- FIG. 2 is an elevational view, partly in section, of a modification of the embodiment of FIG. 1;
- FIG. 3 is an elevational cut-away view of still another modification of the embodiment of FIG. 1;
- FIG. 4 is a schematical diagram of an example of a programmed control device for the stopper means as shown in FIGS. 1 to 3.
- FIG. 1 there is illustrated a casting container 1 having a nozzle body 2 located at its bottom.
- the upper part of the nozzle body 2 is provided with a downwardly tapering sealing seat 4 communicating with a casting nozzle 3.
- a conically shaped bottom end portion or nose 5 of a stopper rod 6 cooperates with the sealing seat 4 of the nozzle body 2 and thereby forms a controllable stopper lock.
- the top end portion of the stopper rod 6 is suspended in a guiding projection 8 which is fixedly connected to a guiding plate 9 of a lifting and lowering mechanism.
- This mechanism consists of levers 18 and 17 pivotally supported on a column 16 and jointed to the guiding plate 9 in the form of a conventional parallelogram guide.
- the lever 18 is a two-arm lever whose free arm is jointed to a piston of a liftingcylinder 19 which is fixedly connected to the column 16.
- a support 20 is integral with a wall of the casting container 1 and supports both a shaft of the angularly adjustable column 16 and trunnions of the lifting cylinder 19.
- the top of the guiding plate 9 is provided with a projecting stop piece 10 the top surface of which faces a vertically adjustable limit stop 11.
- the limit stop 11 is fixedly mounted on a stationary bracket 29 and through a step-down gear 12 and a coupling 13 it is connected both to the rotor of a stepping servo-motor 14 and to a remote position indicator 15 which signals the vertical position of the limit stop 11.
- the servo-motor 14 is controlled in response to the signals of the position indicator 15 by means of a programmed control device which will be described in detail with reference to FIG. 4.
- FIG. 2 A modification of the arrangement of FIG. 1 is shown in FIG. 2.
- the control device includes similar parts 11, 12, 13, 14 and 15 as explained with reference to FIG. 1, but instead of employing a stop piece on the guiding plate, the piston of the lifting cylinder 19 is provided with a pass-through piston rod 30 whose bottom end cooperates with the adjustable limit stop 11 in the same manner as the stop piece 10 in FIG. 1.
- a housing 28 shields the entire control arrangement.
- FIG. 3 Still another embodiment of the control device of this invention is shown in FIG. 3.
- the free arm of the twoarm lever 18 is provided with an extension 18.; an adjustable limit stop 11 with associated parts 12', 13' and 14' (corresponding to the aforementioned parts 11, 12, 13 and 14) are secured in an operative proximity below the extension 18, which functions similarly as the stop piece 10 in FIG. 1.
- FIG. 4 illustrates an example of the programmed control device for adjusting the desired position of the adjustable limit stop 11 for a predetermined period of time.
- the function of the shown electricalcontrol circuit is based on the so-called zero balance.
- a rotatable programming cam 21 whose profile determines in response to the angle of rotation thie-referende input for the adjustment of the limit stop 11, is angularly displaced according to a predetermined time plan by means of a servo-motor 21, for example.
- a cam follower 22 follows the periphery of the cam 21 and displaces via a lever 23 according to the resulting command variable, an originator of signals 24 such as, for instance, an inductive sender or a rotor or a servomotor (selsyn).
- the generated signal is amplified in an amplifier 26 and fed into a converter 27 where it is converted into a proportional amount of drive pulses which drive a stepping motor 14 in one direction until the position indicator 15, associated with the limit stop 11,
- the signal generated by the signal originator 25 is connected to the signal originator 24 for counteracting the output signal of the latter.
- control cam 21 determines the program for controlling the vertical position of the limit stop 11 and, consequently, the vertical displacement of the stopper rod 6.
- the exit or discharging area of the nozzle body 2 is accurately determined; by the exit area is meant the annular gap resulting between the stopper nose 5 and the casting nozzle 3.
- the mode of operation of the device of this invention is as follows:
- Molten metal is first fed through an inlet opening (not illustrated) into the casting container 1.
- the stopper lock 4 between the stopper rod 6 and the casting nozzle 3 is held in a locked position until the liquid metal reaches a level 7.
- a pressure medium such as pressure air or pressure oil is applied to the lifting cylinder 19 and the piston of the latter acts via the parallelogram guide means 16, I17, 18 and the guiding projection 8 upon the stopper rod 6.
- the upward movement of the stopper rod 6 continues until the stop piece 10 abuts against the adjustable limit stop 1 1.
- the limit stop 11 is moved in or against the direction of the lifting force and in this manner it regulates the opening of the stopper lock 4 according to the predetermined program in the controlling device.
- the control cam 21 is set into rotary motion simultaneously with the start of the casting process and causes that the stopper rod 6 is vertically displaced up and down in accordance with the movement of the adjustable limit stop 11.
- control cam 21 as well as the rate of rotation of the latter can be optionally selected. Since the dimension of the casting container 1 is known and the discharge rate of the liquid metal can be determined by experiments or by technological calculations (as a function of the height of the level 7 and of the exit area which, at a constant diameter of the casting nozzle 3, is dependent on the lift of the stopper nose 5), there is no difficulty in proposing such a form of the control cam 21 which optimally fulfills all practical requirements for controlling a casting process.
- the reference input signal transmitter can be made in different ways; for instance, a slidable profiled cam can also be employed.
- a device for controlling the discharge of molten metal from a casting container including stopper means and a discharge nozzle means comprising in combination a stopper actuating device including a fluid cylinder and operable for lifting and lowering said stopper means against said discharge nozzle means, adjustable limit stop means arranged for limiting the lifting of said stopper means, and a programmed control device coupled to said adjustable limit stop means for adjusting the vertical position of said limit stop means in an automatic sequence whereby a predetermined sequence of flow rates for the discharge of said molten metal is obtained.
- said adjustable limit stop means includes a vertically movable limit stop, a reduction gear coupled to said limit stop, a driving motor coupled to said reduction gear, and a position indicator for said adjustable limit stop.
- a device according to claim 2 wherein said adjustable limit stop means is fixedly mounted above a movable part of said stopper actuating device.
- a device wherein said adjustable limit stop means is fixedly arranged laterally to said casting container and below a movable part of said stopper actuating device.
- a device according to claim 2 wherein said stopper actuating device includes a projecting member and said limit stop being arranged in operative proximity to said projecting member.
- a device for controlling the discharge of molten metal from a casting container including stopper means and a dischage nozzle means comprising in combination a stopper actuating device operable for lifting and lowering said stopper means against said discharge nozzle means, adjustable limit stop means arranged for limiting the lifting of said stopper means, and a programmed control device coupled to said adjustable limit stop means for adjusting the vertical position of said limit stop means, said adjustable limit stop means comprising a vertically movable limit stop, a reduction gear coupled to said limit stop, a driving motor coupled to said reduction gear, and a position indicator for said adjustable limit stop, said stopper actuating device comprising a lifting cylinder, having a piston with a piston rod passing therethrough and projecting at both ends of said lifting cylinder, and said adjustable limit stop means being arranged in operative proximity to said piston rod at the lower end of said lifting cylinder.
- a device for controlling the discharge of molten metal from a casting container including stopper means and a discharge nozzle means comprising in combination a stopper actuating device operable for lifting and lowering said stopper means against said discharge nozzle means, adjustable limit stop means arranged for limiting the lifting of said stopper means, and a programmed control device coupled to said adjustable limit stop means for adjusting the vertical position of said limit stop means, said programmed control device comprising a profiled cam means, a first signal originator operable by said cam means to generate a command drive signal for said drive motor, and a second signal originator operable by said position indicator to generate an opposite drive signal counteracting said command drive signal on a servo-balance principle.
- a device for controlling the discharge of molten metal from a casting container including stopper means and a discharge nozzle means comprising in combination a stopper actuating device including a fluid cyl-
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Furnace Charging Or Discharging (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH855670A CH513690A (de) | 1970-06-08 | 1970-06-08 | Vorrichtung zur Steuerung eines Stopfens eines Giessbehälters |
Publications (1)
Publication Number | Publication Date |
---|---|
US3762605A true US3762605A (en) | 1973-10-02 |
Family
ID=4341905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00148794A Expired - Lifetime US3762605A (en) | 1970-06-08 | 1971-06-01 | Control device for stopper of a casting container |
Country Status (10)
Country | Link |
---|---|
US (1) | US3762605A (da) |
JP (1) | JPS5214211B1 (da) |
BE (1) | BE768145A (da) |
CA (1) | CA928034A (da) |
CH (1) | CH513690A (da) |
DE (1) | DE2124747C3 (da) |
DK (1) | DK131710C (da) |
FR (1) | FR2094115B1 (da) |
GB (1) | GB1351529A (da) |
SE (1) | SE388145B (da) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2922666A1 (de) * | 1978-07-07 | 1980-01-17 | Seaton Eng Co | Steuervorrichtung fuer die bodenabstichstopfen einer giesspfanne |
US4258868A (en) * | 1979-08-03 | 1981-03-31 | Moline Corporation | Limit stop for controlling stopper rod travel in a bottom pour ladle |
US4271896A (en) * | 1978-06-28 | 1981-06-09 | Societe Des Aciers Fins De L'est | Device for regulating the flow through a plug of a dispensing vessel in a continuous casting installation, using the level of the metal bath in the receiving ingot mold |
US4271994A (en) * | 1979-11-09 | 1981-06-09 | Combustion Engineering, Inc. | Flex rod assembly for a stopper valve in a bottom pour ladle |
US4953761A (en) * | 1988-09-27 | 1990-09-04 | Inductotherm Corp. | Stopper rod spatial control mechanism |
US5011043A (en) * | 1987-06-05 | 1991-04-30 | The Coca-Cola Company | Post-mix beverage dispenser valve with continuous solenoid modulation |
US5312090A (en) * | 1992-12-14 | 1994-05-17 | Cmi International | Apparatus and method for controlling a stopper rod of a bottom pouring vessel |
US5333764A (en) * | 1993-05-19 | 1994-08-02 | Csi Industrial Systems, Corp. | Ladle stopper rod control arrangement |
US5356034A (en) * | 1992-01-30 | 1994-10-18 | Boehringer Mannheim Gmbh | Apparatus for the proportioned feeding of an analysis fluid |
US5948351A (en) * | 1996-12-27 | 1999-09-07 | Shouzui Yasui | Outlet device for a melting crucible |
CN101456072B (zh) * | 2007-12-11 | 2010-08-25 | 贵阳铝镁设计研究院 | 控制抬包抽吸口开闭的装置 |
US20170072459A1 (en) * | 2015-09-15 | 2017-03-16 | Shin Young Unique Co., LTD. | Molten metal pouring device and centrifugal casting machine using the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4461450A (en) * | 1982-06-25 | 1984-07-24 | Combustion Engineering, Inc. | Remote control choke |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2329820A (en) * | 1941-09-18 | 1943-09-21 | Oil Devices | Self-adjusting three-stage control |
US2757546A (en) * | 1952-07-21 | 1956-08-07 | Wickes Brothers Division Of Th | Mechanical movement |
US2996928A (en) * | 1957-11-25 | 1961-08-22 | Orla E Watson | Valve operator |
US3439759A (en) * | 1965-12-14 | 1969-04-22 | Siderurgie Fse Inst Rech | Method and apparatus for obtaining a constant predetermined flow of liquid,especially molten metal |
US3599835A (en) * | 1968-09-20 | 1971-08-17 | Kocks Gmbh Friedrich | Dispensing apparatus for and methods of casting |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3261060A (en) * | 1963-09-05 | 1966-07-19 | Winkel Machine Co Inc | Precise pouring apparatus |
-
1970
- 1970-06-08 CH CH855670A patent/CH513690A/de not_active IP Right Cessation
-
1971
- 1971-05-18 DE DE2124747A patent/DE2124747C3/de not_active Expired
- 1971-05-26 JP JP46035595A patent/JPS5214211B1/ja active Pending
- 1971-06-01 US US00148794A patent/US3762605A/en not_active Expired - Lifetime
- 1971-06-02 GB GB1868571*[A patent/GB1351529A/en not_active Expired
- 1971-06-04 SE SE7107296A patent/SE388145B/xx unknown
- 1971-06-04 BE BE768145A patent/BE768145A/xx unknown
- 1971-06-07 CA CA115018A patent/CA928034A/en not_active Expired
- 1971-06-07 DK DK275971A patent/DK131710C/da active
- 1971-06-08 FR FR7120726A patent/FR2094115B1/fr not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2329820A (en) * | 1941-09-18 | 1943-09-21 | Oil Devices | Self-adjusting three-stage control |
US2757546A (en) * | 1952-07-21 | 1956-08-07 | Wickes Brothers Division Of Th | Mechanical movement |
US2996928A (en) * | 1957-11-25 | 1961-08-22 | Orla E Watson | Valve operator |
US3439759A (en) * | 1965-12-14 | 1969-04-22 | Siderurgie Fse Inst Rech | Method and apparatus for obtaining a constant predetermined flow of liquid,especially molten metal |
US3599835A (en) * | 1968-09-20 | 1971-08-17 | Kocks Gmbh Friedrich | Dispensing apparatus for and methods of casting |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4271896A (en) * | 1978-06-28 | 1981-06-09 | Societe Des Aciers Fins De L'est | Device for regulating the flow through a plug of a dispensing vessel in a continuous casting installation, using the level of the metal bath in the receiving ingot mold |
FR2430285A1 (fr) * | 1978-07-07 | 1980-02-01 | Seaton Eng Co | Appareil de commande de la quenouille d'une poche de coulee |
US4196829A (en) * | 1978-07-07 | 1980-04-08 | Seaton Engineering Company | Stopper throttling system |
DE2922666A1 (de) * | 1978-07-07 | 1980-01-17 | Seaton Eng Co | Steuervorrichtung fuer die bodenabstichstopfen einer giesspfanne |
US4258868A (en) * | 1979-08-03 | 1981-03-31 | Moline Corporation | Limit stop for controlling stopper rod travel in a bottom pour ladle |
US4271994A (en) * | 1979-11-09 | 1981-06-09 | Combustion Engineering, Inc. | Flex rod assembly for a stopper valve in a bottom pour ladle |
US5011043A (en) * | 1987-06-05 | 1991-04-30 | The Coca-Cola Company | Post-mix beverage dispenser valve with continuous solenoid modulation |
US4953761A (en) * | 1988-09-27 | 1990-09-04 | Inductotherm Corp. | Stopper rod spatial control mechanism |
US5356034A (en) * | 1992-01-30 | 1994-10-18 | Boehringer Mannheim Gmbh | Apparatus for the proportioned feeding of an analysis fluid |
US5312090A (en) * | 1992-12-14 | 1994-05-17 | Cmi International | Apparatus and method for controlling a stopper rod of a bottom pouring vessel |
US5333764A (en) * | 1993-05-19 | 1994-08-02 | Csi Industrial Systems, Corp. | Ladle stopper rod control arrangement |
US5948351A (en) * | 1996-12-27 | 1999-09-07 | Shouzui Yasui | Outlet device for a melting crucible |
CN101456072B (zh) * | 2007-12-11 | 2010-08-25 | 贵阳铝镁设计研究院 | 控制抬包抽吸口开闭的装置 |
US20170072459A1 (en) * | 2015-09-15 | 2017-03-16 | Shin Young Unique Co., LTD. | Molten metal pouring device and centrifugal casting machine using the same |
CN106513620A (zh) * | 2015-09-15 | 2017-03-22 | 现代自动车株式会社 | 熔融金属浇注装置和使用该装置的离心铸造机 |
Also Published As
Publication number | Publication date |
---|---|
CA928034A (en) | 1973-06-12 |
FR2094115A1 (da) | 1972-02-04 |
SE388145B (sv) | 1976-09-27 |
BE768145A (fr) | 1971-11-03 |
FR2094115B1 (da) | 1976-06-11 |
DE2124747C3 (de) | 1975-02-13 |
DE2124747B2 (de) | 1974-06-27 |
CH513690A (de) | 1971-10-15 |
DK131710B (da) | 1975-08-25 |
DE2124747A1 (de) | 1971-12-23 |
JPS5214211B1 (da) | 1977-04-20 |
GB1351529A (en) | 1974-05-01 |
DK131710C (da) | 1976-01-26 |
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