CA1149129A - Apparatus for position indicating of mould units in a casting line - Google Patents
Apparatus for position indicating of mould units in a casting lineInfo
- Publication number
- CA1149129A CA1149129A CA000362120A CA362120A CA1149129A CA 1149129 A CA1149129 A CA 1149129A CA 000362120 A CA000362120 A CA 000362120A CA 362120 A CA362120 A CA 362120A CA 1149129 A CA1149129 A CA 1149129A
- Authority
- CA
- Canada
- Prior art keywords
- mould
- computer
- ladle
- unit
- read
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D45/00—Equipment for casting, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Casting Devices For Molds (AREA)
- Valve Housings (AREA)
- Level Indicators Using A Float (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE:
Mounds with coded numbers of a casting line are filled with a melt from a ladle. The ladle reads the appropriate mould to be filled and stores this information, together with the charge number via a write device into a central computer. With the help of a stationary read device the position of each mould can be deduced. Write devices situated in the sampling station and in the lab, also storing data into the computer. The computer controls a switch according to data input of these devices. This switch directs good casts onto tracks or rejects onto branch off. Through this, an absolute and continuous super-visory control can be obtained with few means and expense.
The code carrier features pegs and non-contact end switches contributing to a trouble free operation.
Mounds with coded numbers of a casting line are filled with a melt from a ladle. The ladle reads the appropriate mould to be filled and stores this information, together with the charge number via a write device into a central computer. With the help of a stationary read device the position of each mould can be deduced. Write devices situated in the sampling station and in the lab, also storing data into the computer. The computer controls a switch according to data input of these devices. This switch directs good casts onto tracks or rejects onto branch off. Through this, an absolute and continuous super-visory control can be obtained with few means and expense.
The code carrier features pegs and non-contact end switches contributing to a trouble free operation.
Description
~g~z~
The invention refers to an apparatus for position indicating of mould units in a casting line.
It is important to position indicate the mould units in such casting lines in order to decide whether or not, in accordance with the quality of the mould, such moulds should be filled. It is also necessary to known with what melt and from which ladle the mould was filled in order to determine, after the laboratory analysis of the material in a ladle, whether or not the casts from a par-ticular ladle are suitable or rejects.
German DE-OS 28 04 705 shows such an apparatus according to the prior art, ~Ihereby each mould unit consists of a mould car, carrying a mould on top. The coding of the mould car is in the form of a magnetic or a visible, not further described code carrier. Starting with the mould car as a reference point, being at the height of a fixed read device, the position of each of the uniform mould cars can be deduced. All steps relating to the reading of the values and of the identification of the positions of the mould cars and the ladle car may be carried out with the help of a model, which is shaped as an endless belt. The numbers of the moulds cars are printed onto this belt, which is synchronously driven by the power unit of the casting line.
Disadvantages accrue from the complica-ted synchro-nizing and position indication between the mould and the ladle, the reading device of the ladle thereby scanning an overhead sub-divided graduation.
Equally known are magniti~ed code carrier pla-tes, which are coded by means of write devices and are read or checked by reading devices. Firstly there is the danger of an unwanted decoding or reverse poling, as the case may be, by the presence of magnets; secondly there is the need for a plurality of read stations, creating at best an incomplete ~ i7~
' ~: ~
... . .
overall view.
' The object of the foregoing invention is to pre-sent an apparatus which enables a continuous position indication and controlling of -the mould units with the help of a reduced number of means.
Accordingly, what is broadly claimed herein is an appara,tus for position indicating mould units in a casting line whereby the mould units continuously or intermittently follow a predetermined path, whereby each mould unit has a code carrier, with at least one ladle unit movable along a filling section of the path, whereby the ladle unit has a read device, with a stationary read device at the path to read the code carriers of the mould units, and with a com-puter connected with the read devices at the path and of the ladle unit, the improvement being that: the ladle unit has a write device which is connected with -the computer, the read device o the ladle unit reads the code carrier of the respective mould unit, while synchroniziny the mould unit with the ladle unit, the computer is connected with at least a second write device, and the path has at least one branch off, the entry of which is controlled by the computer according to data input of the second on further write device.
An embodiment of the invention is described in detail hereinafter with reference to the appended drawings wherein:
Fig. 1: a top view of part of the casting line and its connections with a computer, Fig. 2: a side view of part of a mould car, not to scale~
with a code carrier, Fig. 3: a read device in form of a set of non~con-tact end switches, for reading the code carrier, shown in Fig. 2, and Fig. 4: a code carrier superimposed onto a read device according to Fig. 2 and 3.
The invention refers to an apparatus for position indicating of mould units in a casting line.
It is important to position indicate the mould units in such casting lines in order to decide whether or not, in accordance with the quality of the mould, such moulds should be filled. It is also necessary to known with what melt and from which ladle the mould was filled in order to determine, after the laboratory analysis of the material in a ladle, whether or not the casts from a par-ticular ladle are suitable or rejects.
German DE-OS 28 04 705 shows such an apparatus according to the prior art, ~Ihereby each mould unit consists of a mould car, carrying a mould on top. The coding of the mould car is in the form of a magnetic or a visible, not further described code carrier. Starting with the mould car as a reference point, being at the height of a fixed read device, the position of each of the uniform mould cars can be deduced. All steps relating to the reading of the values and of the identification of the positions of the mould cars and the ladle car may be carried out with the help of a model, which is shaped as an endless belt. The numbers of the moulds cars are printed onto this belt, which is synchronously driven by the power unit of the casting line.
Disadvantages accrue from the complica-ted synchro-nizing and position indication between the mould and the ladle, the reading device of the ladle thereby scanning an overhead sub-divided graduation.
Equally known are magniti~ed code carrier pla-tes, which are coded by means of write devices and are read or checked by reading devices. Firstly there is the danger of an unwanted decoding or reverse poling, as the case may be, by the presence of magnets; secondly there is the need for a plurality of read stations, creating at best an incomplete ~ i7~
' ~: ~
... . .
overall view.
' The object of the foregoing invention is to pre-sent an apparatus which enables a continuous position indication and controlling of -the mould units with the help of a reduced number of means.
Accordingly, what is broadly claimed herein is an appara,tus for position indicating mould units in a casting line whereby the mould units continuously or intermittently follow a predetermined path, whereby each mould unit has a code carrier, with at least one ladle unit movable along a filling section of the path, whereby the ladle unit has a read device, with a stationary read device at the path to read the code carriers of the mould units, and with a com-puter connected with the read devices at the path and of the ladle unit, the improvement being that: the ladle unit has a write device which is connected with -the computer, the read device o the ladle unit reads the code carrier of the respective mould unit, while synchroniziny the mould unit with the ladle unit, the computer is connected with at least a second write device, and the path has at least one branch off, the entry of which is controlled by the computer according to data input of the second on further write device.
An embodiment of the invention is described in detail hereinafter with reference to the appended drawings wherein:
Fig. 1: a top view of part of the casting line and its connections with a computer, Fig. 2: a side view of part of a mould car, not to scale~
with a code carrier, Fig. 3: a read device in form of a set of non~con-tact end switches, for reading the code carrier, shown in Fig. 2, and Fig. 4: a code carrier superimposed onto a read device according to Fig. 2 and 3.
- 2 -A pluralty of mould units, each mould unit consisting of a mould car 10 and a mould 11, continously or possibly intermittently follow a predeterrnined path 12, having tracks or rails. Each mould car 10 has a vertically mounted code carrier 16, with the help of which the mould cars are numbered continously, e.g. from 100 to 300. There is at least one ladle unit 17, movable on rails 18 in a parallel ~ashion along a section of the path 12, the filling section.
The ladle unit 17, containing a temporary charge or melt H, is provided with a read device GL, which reads the code on the code carrier 16 of the mould unit 205 being filled or immediate be~ore filling as synchronization takes place between them. The ladle unit is also provided with a write device 22 for labeling the particular melt. Both devices GL and 22 supply these data into a computer 23. The inventi~e apparatus merely needs a fixed or stationary read device OL, stationed somewhere at the path, serving as a fixing or reference point. In the example shown the mould unit 202 is being read. This reference point shows on the computer 23 as OLR. As all mould cars are of uniform shape, the position of each mould car is herewith deducable. According to this, the mould unit 200 is situated in the sampling station or sampling point P (which is PR on the computer), being two mould units further downstream, the direction of movement being indicated by the arrow 2~. The sampling station P features a second code writing device, being connected with the computer.
A sample is taken from the last pour of each charge or melt.
Mould 200 is the last mould being filled with charye F.
The operator supplies the computer 23 with the information that sampling has taken place by pressing a knob. The sample is sent to the lab ~, where it is being analyzed. Also here there is a write device, which button I has to be pressed when the analysis is positive and which button II i5 pressed when negative. Faulty casts are directed onto a branch off II by means of a switch W, which is controlled the computer. The switch W is situated exactly 60 mould units ahead (in the direction 24) of the read / -device OL. Fig. 1 shows that the last mould u~it 141 with melt Ahas been found satisfactory, whereas the analysis of melt B, with which mould 1~2, 143, 144 have been filled, were negative.
The computer 23 energizes switch W at the right moment onto branch o~f II. It is now possible, without undue excessive expenditures, to mount tele-screens at several places, e.g. at the sampling point, the shake out station, the switch W, showing computer stored data.
The code carrier 16 works according to the BCD-code system and shows a number oE holes 28, into which pegs or lugs 29 are inser-table. Because of this the apparatus or arrangement becomes less susceptible for breakdowns and is therefore more reliable in operation. The coded number of the code carrier 16, shown in Fig. 2 is 50, as can be seen by any one familiar with the BC~
code. This code is read by means of non-contact end switches 30, which are contained in any read device.
At the left and right of the coding holes 28 there are two synchronizing lugs 34, also operatively connected with non-contact end switches 35. Only after the activation of both the end switches 35 the reading operation is initiated. In Fig. 4 a read device OL or GL is superimposed onto a code carrier 16 and it is shown that the synchronizing lugs 34 are offset inwardly with respect to their end switches 35. This enables to compute, in addition, the direction of movement of the mould units.
Instead of a continuous code numbering it is possible, in order to reduee the number of pegs, to choose an arbitrary coding, being stored in the computer in the right sequence.
The distance of the read device GL with respect to the ladle spout can be such, that the spout is out of reach of the c~sting jet during the reading operation. When driving away from the pegs the computer computes which mould unit is in front of the ladle unit. When coming into synchrQnization with the pegs, the computer is able to compute the right coded number and compares z~ /s this with the actual coded number. Also in the stationary read device OL the following coded number is continuously computed and compared with the actual coded number. Through this, a complete supervisory control of the coded numbers, read devices and of the computer is possible.
' . .
The ladle unit 17, containing a temporary charge or melt H, is provided with a read device GL, which reads the code on the code carrier 16 of the mould unit 205 being filled or immediate be~ore filling as synchronization takes place between them. The ladle unit is also provided with a write device 22 for labeling the particular melt. Both devices GL and 22 supply these data into a computer 23. The inventi~e apparatus merely needs a fixed or stationary read device OL, stationed somewhere at the path, serving as a fixing or reference point. In the example shown the mould unit 202 is being read. This reference point shows on the computer 23 as OLR. As all mould cars are of uniform shape, the position of each mould car is herewith deducable. According to this, the mould unit 200 is situated in the sampling station or sampling point P (which is PR on the computer), being two mould units further downstream, the direction of movement being indicated by the arrow 2~. The sampling station P features a second code writing device, being connected with the computer.
A sample is taken from the last pour of each charge or melt.
Mould 200 is the last mould being filled with charye F.
The operator supplies the computer 23 with the information that sampling has taken place by pressing a knob. The sample is sent to the lab ~, where it is being analyzed. Also here there is a write device, which button I has to be pressed when the analysis is positive and which button II i5 pressed when negative. Faulty casts are directed onto a branch off II by means of a switch W, which is controlled the computer. The switch W is situated exactly 60 mould units ahead (in the direction 24) of the read / -device OL. Fig. 1 shows that the last mould u~it 141 with melt Ahas been found satisfactory, whereas the analysis of melt B, with which mould 1~2, 143, 144 have been filled, were negative.
The computer 23 energizes switch W at the right moment onto branch o~f II. It is now possible, without undue excessive expenditures, to mount tele-screens at several places, e.g. at the sampling point, the shake out station, the switch W, showing computer stored data.
The code carrier 16 works according to the BCD-code system and shows a number oE holes 28, into which pegs or lugs 29 are inser-table. Because of this the apparatus or arrangement becomes less susceptible for breakdowns and is therefore more reliable in operation. The coded number of the code carrier 16, shown in Fig. 2 is 50, as can be seen by any one familiar with the BC~
code. This code is read by means of non-contact end switches 30, which are contained in any read device.
At the left and right of the coding holes 28 there are two synchronizing lugs 34, also operatively connected with non-contact end switches 35. Only after the activation of both the end switches 35 the reading operation is initiated. In Fig. 4 a read device OL or GL is superimposed onto a code carrier 16 and it is shown that the synchronizing lugs 34 are offset inwardly with respect to their end switches 35. This enables to compute, in addition, the direction of movement of the mould units.
Instead of a continuous code numbering it is possible, in order to reduee the number of pegs, to choose an arbitrary coding, being stored in the computer in the right sequence.
The distance of the read device GL with respect to the ladle spout can be such, that the spout is out of reach of the c~sting jet during the reading operation. When driving away from the pegs the computer computes which mould unit is in front of the ladle unit. When coming into synchrQnization with the pegs, the computer is able to compute the right coded number and compares z~ /s this with the actual coded number. Also in the stationary read device OL the following coded number is continuously computed and compared with the actual coded number. Through this, a complete supervisory control of the coded numbers, read devices and of the computer is possible.
' . .
Claims (5)
1. Apparatus for position indicating mould units in a casting line - whereby the mould units continuously or intermittently follow a predetermined path, - whereby each mould unit has a code carrier, - with at least one ladle unit movable along a filling section of the path, - whereby the ladle unit has a read device, - with a stationary read device at the path to read the code carriers of the mould units, and - with a computer connected with the read devices at the path and of the ladle unit, the improvement being that:
- the ladle unit has a write device which is connected with the computer, - the read device of the ladle unit reads the code carrier of the respective mould unit, while synchronizing the mould unit with the ladle unit, - the computer is connected with at least a second write device, and - the path has at least one branch off, the entry of which is controlled by the computer according to data input of the second on further write device.
- the ladle unit has a write device which is connected with the computer, - the read device of the ladle unit reads the code carrier of the respective mould unit, while synchronizing the mould unit with the ladle unit, - the computer is connected with at least a second write device, and - the path has at least one branch off, the entry of which is controlled by the computer according to data input of the second on further write device.
2. Apparatus according to claim 1, characterized in that a write device is positioned at the sampling point and/or at the analyzing point.
3. Apparatus according to claim 2, characterized in that the code carrier has a number of holes into which pegs are insertable and in that each read device has the same number of non-contact end switches as the number of the holes.
4. Apparatus according to claim 3, characterized in that the code carrier has two synchronizing lugs posi-tioned at either side of the holes, said lugs cooperating with non-contact end switches of the read device, the energization of which initiates the reading operation.
5. Apparatus according to claim 4, characterized in that the synchronizing lugs are offset inwardly as compared to their end switches.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH9209/79-5 | 1979-10-12 | ||
| CH920979A CH641987A5 (en) | 1979-10-12 | 1979-10-12 | DEVICE FOR MONITORING MOLDING UNITS ON A FOUNDATION STREET. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1149129A true CA1149129A (en) | 1983-07-05 |
Family
ID=4349541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000362120A Expired CA1149129A (en) | 1979-10-12 | 1980-10-10 | Apparatus for position indicating of mould units in a casting line |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0027237B1 (en) |
| AT (1) | ATE4295T1 (en) |
| CA (1) | CA1149129A (en) |
| CH (1) | CH641987A5 (en) |
| DD (1) | DD153643A5 (en) |
| DE (1) | DE3064431D1 (en) |
| PL (1) | PL134737B1 (en) |
| WO (1) | WO1981000976A1 (en) |
| ZA (1) | ZA806044B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5125448A (en) * | 1939-05-19 | 1992-06-30 | Dansk Industri Syndikat/As | Automatic foundry plant |
| US4747444A (en) * | 1985-05-02 | 1988-05-31 | Amsted Industries Incorporated | Automated casting plant and method of casting |
| US4880792A (en) * | 1986-11-06 | 1989-11-14 | Mazda Motor Corporation | Molding installation using die |
| DK245389A (en) * | 1989-05-19 | 1990-11-20 | Dansk Ind Syndikat | AUTOMATIC SUBSTANCES |
| GB2311948B (en) * | 1996-04-08 | 2000-03-29 | Ford Motor Co | System for identifying castings and for tracking casting process parameters |
| DE19960594A1 (en) * | 1999-12-16 | 2001-06-21 | Sms Demag Ag | Process for monitoring the individual process of transport containers for metallic melt and system for this |
| EP1270115B1 (en) * | 2001-06-18 | 2008-08-06 | Kwc Ag | Low pressure die-casting plant and method for operating the same |
| DE102006009320A1 (en) * | 2006-03-01 | 2007-09-06 | Halberg-Guss Gmbh | Computerized monitoring of casting conditions, prepares data sets concerning individual cores, core assembly and process parameters, to compute molding identifier and eliminate defects |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576540A (en) * | 1967-11-20 | 1971-04-27 | Sundstrand Corp | Plural machine tool and part handling control system |
| US3624478A (en) * | 1970-09-03 | 1971-11-30 | Semperit Osteneichisch Amerika | Binary control circuit for mold-filling device |
| JPS5142280B2 (en) * | 1972-08-01 | 1976-11-15 | ||
| FR2379341A1 (en) * | 1977-02-03 | 1978-09-01 | Citroen Sa | INSTALLATION AND PROCEDURE FOR IDENTIFYING THE MOLDS OF A FOUNDRY LINE |
-
1979
- 1979-10-12 CH CH920979A patent/CH641987A5/en not_active IP Right Cessation
-
1980
- 1980-09-30 ZA ZA00806044A patent/ZA806044B/en unknown
- 1980-10-07 AT AT80106062T patent/ATE4295T1/en not_active IP Right Cessation
- 1980-10-07 DE DE8080106062T patent/DE3064431D1/en not_active Expired
- 1980-10-07 EP EP80106062A patent/EP0027237B1/en not_active Expired
- 1980-10-10 DD DD80224467A patent/DD153643A5/en unknown
- 1980-10-10 CA CA000362120A patent/CA1149129A/en not_active Expired
- 1980-10-10 PL PL1980227210A patent/PL134737B1/en unknown
- 1980-10-10 WO PCT/CH1980/000122 patent/WO1981000976A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ATE4295T1 (en) | 1983-08-15 |
| DD153643A5 (en) | 1982-01-20 |
| WO1981000976A1 (en) | 1981-04-16 |
| PL134737B1 (en) | 1985-09-30 |
| CH641987A5 (en) | 1984-03-30 |
| PL227210A1 (en) | 1981-05-22 |
| EP0027237A1 (en) | 1981-04-22 |
| ZA806044B (en) | 1981-11-25 |
| EP0027237B1 (en) | 1983-07-27 |
| DE3064431D1 (en) | 1983-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |