CA1218827A - Line for the production of castings, particularly by counter-pressure casting - Google Patents
Line for the production of castings, particularly by counter-pressure castingInfo
- Publication number
- CA1218827A CA1218827A CA000456709A CA456709A CA1218827A CA 1218827 A CA1218827 A CA 1218827A CA 000456709 A CA000456709 A CA 000456709A CA 456709 A CA456709 A CA 456709A CA 1218827 A CA1218827 A CA 1218827A
- Authority
- CA
- Canada
- Prior art keywords
- casting
- line
- castings
- molten metal
- production
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 91
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims description 23
- 239000000543 intermediate Substances 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 2
- 230000002226 simultaneous effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 3
- 241000282320 Panthera leo Species 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
LINE FOR THE PRODUCTION OF CASTINGS, PARTICULARLY
BY COUNTER-PRESSURE CASTING
(Abstract) A line for the production of castings which comprises several functionally and kinematically interconnected units: a turntable machine on the table of which there are mounted units for casting under counter-pressure in casting moulds, and sealed chambers, in which there are disposed crucibles with molten metal, each casting mould being provided with a device for displacing and closing it. Outside the turntable machine there are disposed metering devices with pouring spouts, and the units for counter-pressure casting comprise movable sealed chambers for molten metal, and between the pouring spouts or close to one of them there is mounted a device for checking the level of the molten metal in the respective sealed chamber. In the position of the turntable machine for removal of the casting there is installed a device for the removal of the casting.
BY COUNTER-PRESSURE CASTING
(Abstract) A line for the production of castings which comprises several functionally and kinematically interconnected units: a turntable machine on the table of which there are mounted units for casting under counter-pressure in casting moulds, and sealed chambers, in which there are disposed crucibles with molten metal, each casting mould being provided with a device for displacing and closing it. Outside the turntable machine there are disposed metering devices with pouring spouts, and the units for counter-pressure casting comprise movable sealed chambers for molten metal, and between the pouring spouts or close to one of them there is mounted a device for checking the level of the molten metal in the respective sealed chamber. In the position of the turntable machine for removal of the casting there is installed a device for the removal of the casting.
Description
12~8~327 The present invention relates to a line for the production of castings, particularly by counter-pressure casting which can find application in foundry production.
A known machine for low-pressure casting comprises a turntable, to which there a mounted die sections with casting mounds. Each die section is provided with a device for sealing the casting mound, a metal conduit and a metering device for molten metal. To the rotating turntable, under-neat each die section there is mounted a sealed chamber for preparing charges of molten metal. Each sealed chamber is mounted with a possibility for horizontal displacement.
A known machine for gas counter-pressure casting comprises a turntable, on which there are disposed casting mounds, with mechanisms for their opening and closing. Each casting mound is provided with a furnace, in which there is disposed a crucible with molten metal and a mechanism for closing the tap hole is mounted to it. The furnaces are connected to a source of pressurized gas.
A drawback of these machines lies in that, not all operations related to the process of casting are mechanized and automated. Moreover, there are no devised for checking the level of the molten metal in the sealed chambers and for the removal of the ready castings. All this reduces the out-put of the machine and its reliability in operation.
It is, therefore, a general object of this invent lion to provide a line for the production of castings, par-titularly by counter-pressure casting with a higher degree of automation and mechanization of the casting process, this resulting in an increase of its output.
According to the present invention, there is pro-voided a line for the production of castings, comprising a turntable provided with counter-pressure casting units, each unit comprising sealed chambers with casting mounds and crucibles with molten metal, each casting mound being
A known machine for low-pressure casting comprises a turntable, to which there a mounted die sections with casting mounds. Each die section is provided with a device for sealing the casting mound, a metal conduit and a metering device for molten metal. To the rotating turntable, under-neat each die section there is mounted a sealed chamber for preparing charges of molten metal. Each sealed chamber is mounted with a possibility for horizontal displacement.
A known machine for gas counter-pressure casting comprises a turntable, on which there are disposed casting mounds, with mechanisms for their opening and closing. Each casting mound is provided with a furnace, in which there is disposed a crucible with molten metal and a mechanism for closing the tap hole is mounted to it. The furnaces are connected to a source of pressurized gas.
A drawback of these machines lies in that, not all operations related to the process of casting are mechanized and automated. Moreover, there are no devised for checking the level of the molten metal in the sealed chambers and for the removal of the ready castings. All this reduces the out-put of the machine and its reliability in operation.
It is, therefore, a general object of this invent lion to provide a line for the production of castings, par-titularly by counter-pressure casting with a higher degree of automation and mechanization of the casting process, this resulting in an increase of its output.
According to the present invention, there is pro-voided a line for the production of castings, comprising a turntable provided with counter-pressure casting units, each unit comprising sealed chambers with casting mounds and crucibles with molten metal, each casting mound being
2 1~8827 provided with a device for the displacement and closing thereof, metering devices with pouring spouts being provided outside said turntable, said line further comprising:
- a device provided between said pouring spouts or adjacent to one pouring spout for checking the level of the molten metal in the respective sealed chamber, and - in the position of the turntable for removal of a casting, a device for such removal of the casting.
Preferably, each unit for counter-pressure casting, which comprises a movable sealed chamber for molten metal, consists of a top and a bottom sealed chambers. In the bottom sealed chamber there is disposed a crucible with molten metal and in the top one - the casting mound. The crucible with molten metal and the casting mounds are connected by a metal conduit, which is mounted to an intermediate platen.
This intermediate platen itself is installed on guiding columns, to which a movable platen is mounted. The guiding columns are two and they are fastened to the upper face of the intermediate platen, while to its bottom face there are mounted a locking mechanism and a mechanism for simultaneous vertical and horizontal displacement of the bottom sealed chamber. Two transfer cylinders are mounted to the inter-mediate platen.
Preferably, the device for checking the level of the molten metal in the respective sealed chamber, comprises a support, provided with a vertical power cylinder, connected to a rotating drum. To the rotating drum there is fastened a level detector.
Preferably, the device for the removal of the ready casting comprises, a body and a reception platform, which is hingedly connected to flanges. The flanges are rigidly fasten-Ed to horizontal guides, installed in sleeves in the body.
The flanges are connected to a link gear and a lever, which rotates the reception platform and is connected to a horizontal
- a device provided between said pouring spouts or adjacent to one pouring spout for checking the level of the molten metal in the respective sealed chamber, and - in the position of the turntable for removal of a casting, a device for such removal of the casting.
Preferably, each unit for counter-pressure casting, which comprises a movable sealed chamber for molten metal, consists of a top and a bottom sealed chambers. In the bottom sealed chamber there is disposed a crucible with molten metal and in the top one - the casting mound. The crucible with molten metal and the casting mounds are connected by a metal conduit, which is mounted to an intermediate platen.
This intermediate platen itself is installed on guiding columns, to which a movable platen is mounted. The guiding columns are two and they are fastened to the upper face of the intermediate platen, while to its bottom face there are mounted a locking mechanism and a mechanism for simultaneous vertical and horizontal displacement of the bottom sealed chamber. Two transfer cylinders are mounted to the inter-mediate platen.
Preferably, the device for checking the level of the molten metal in the respective sealed chamber, comprises a support, provided with a vertical power cylinder, connected to a rotating drum. To the rotating drum there is fastened a level detector.
Preferably, the device for the removal of the ready casting comprises, a body and a reception platform, which is hingedly connected to flanges. The flanges are rigidly fasten-Ed to horizontal guides, installed in sleeves in the body.
The flanges are connected to a link gear and a lever, which rotates the reception platform and is connected to a horizontal
3 8827 power cylinder, rigidly fastened to the body. The body is provided with stops, and to the reception platform there are mounted cams, which are connected to the mechanism for sepal ration of the casting.
Preferably, the mechanism for separation of the casting comprises, stop bars connected to spring-loaded paws by means of elastic elements and fastened rigidly to levers.
These levers are hingedly connected to the reception platform.
The advantages of the line for the production of castings, particularly by counter-pressure casting, lie in that it provides an automatic operation of each unit for counter-pressure casting successively in the cycle of opera-lion of the line. Each unit is autonomous for itself, and this provides a possibility in case of damage of one of them, to exclude it and the line continues its operation with the remaining units. All this results in an increase of the yield of the casting process.
For a better understanding of the invention, refer-once should be made to the accompanying drawings in which there is illustrated and described as example, without limitative manner, a preferred embodiment of the invention. In the drawings:
Fig. 1 is a general view of the line;
Fig. 2 is a cross sectional view along A-A in Fig. 1;
Fig. 3 is a vertical cross-sectional view of the unit mounted on the turntable;
Fig. 4 is a view in direction B in Fig. I of the device for checking the level of the molten metal;
Fig. 5 is a view in direction C in Fig. 1 of the device for removal of the ready casting;
Fig. 6 is a cross-sectional view along D-D in Fig. 4.
The production line comprises a turntable 1, seated
Preferably, the mechanism for separation of the casting comprises, stop bars connected to spring-loaded paws by means of elastic elements and fastened rigidly to levers.
These levers are hingedly connected to the reception platform.
The advantages of the line for the production of castings, particularly by counter-pressure casting, lie in that it provides an automatic operation of each unit for counter-pressure casting successively in the cycle of opera-lion of the line. Each unit is autonomous for itself, and this provides a possibility in case of damage of one of them, to exclude it and the line continues its operation with the remaining units. All this results in an increase of the yield of the casting process.
For a better understanding of the invention, refer-once should be made to the accompanying drawings in which there is illustrated and described as example, without limitative manner, a preferred embodiment of the invention. In the drawings:
Fig. 1 is a general view of the line;
Fig. 2 is a cross sectional view along A-A in Fig. 1;
Fig. 3 is a vertical cross-sectional view of the unit mounted on the turntable;
Fig. 4 is a view in direction B in Fig. I of the device for checking the level of the molten metal;
Fig. 5 is a view in direction C in Fig. 1 of the device for removal of the ready casting;
Fig. 6 is a cross-sectional view along D-D in Fig. 4.
The production line comprises a turntable 1, seated
4 827 on a central column 35 and connected to a pulsating trays-mission 49. Along the periphery of the turntable 1 there are installed units for counter-pressure casting 2. Each unit .
~L2~8~3~7 and a top 4 sealed chambers. In the bottom sealed chamber 3 there is disposed a crucible 5 with molten metal, and in the top sealed chamber 4 - the casting mound consisting of a mow viable 36 and a fixed 37 mound halves. The casting mound and the crucible 5 for molten metal are connected by means of a metal conduit 6, mounted to an intermediate platen 7, to which there are installed two immovable guiding columns 8.
To the guiding columns 8 there is mounted by means of sleeves a movable platen 9. The guiding columns 8 are attached to the upper face of the intermediate platen 7 by means of sleeves 38, nuts 39 and semi-rings 40. To the both Tom face of the intermediate platen 7 there are mounted a locking mechanism 11 and a mechanism for simultaneous vertical and horizontal displacement 12 of the bottom sealed chamber 3. To the upper face of the movable platen 9 there are mounted a locking wedge-type mechanism 41 and a knock-out mechanism 42. To the bottom face of the movable platen 9 there are attached the movable mound half 36 and the top semi-hood 43.
To the intermediate platen 7 there are mounted the fixed mound half 37 and the bottom semi-hood 44. To the intermediate platen 7 there are mounted rigidly two transfer power Solon-dons 13, to the piston rods of which there is attached the movable platen 9.
Outside the turntable machine there are installed two successively operating metering devices 10. To the bodies of the metering devices 10 there are fastened hingedly the pour-in spouts 14. Between the pouring spouts 14 or closely to one of the spouts 14 of the metering devices 10, there is mounted a device 15 for checking the level of the molten metal in the respective sealed chamber 3.
The device 15 for checking the level of the molten metal in the crucibles 5 comprises a support 13, to which there is mounted a vertical power cylinder 19. Its piston rod 50 is connected to a rotating drum 20, to which there is or fastened a detector for the level 21.
The line is provided with a device 16 for the removal of the ready casting 17 from the counter-pressure casting unit 2 and its conveying to the reception device 46, such as a con-voyeur. The device 46 is mounted in the position of the turn-table machine for removal of the ready casting 17. The device for the removal 16 of the ready casting 17 comprises a body 22 and a reception platform 23, which is hingedly connected to flanges, which are rigidly fastened to horizontal guides 25.
The horizontal guides 25 are installed in sleeves in the body 22. The flanges 24 are connected to a link mechanism 26 and a lever 27, which rotates the reception platform 23 and is connected to a horizontal power cylinder 28. The horizontal power cylinder 28 is rigidly fastened to the body 22. To the body 22 there are mounted stops 29 and to the reception platform 23 - cams 30, connected to mechanisms 31 for separate in the ready casting 17. The flanges are provided with stops 45, intended for retaining the reception platform 23 in horn-zontal position.
The mechanism for separating 31 the ready casting 17 comprises stop bars 32, which are fastened by means of elastic elements 33 to spring-loaded paws 47. On the reception platform 23 there are mounted spring-loaded paws 47 by means of levers 34, which are hingedly fastened to it. The levers 34 are connected to a power cylinder 48, which is fastened to the reception platform 23.
The line is provided with a control desk 48, which is installed close to the zone of attendance of the turntable machine.
The line operates as follows:
In the case of automatic operation of the line, the turntable 1 is rotated by the control desk 48 so, that each unit 2 takes in succession a position for charging with molten metal from the metering device 10, and the respective sealed chamber 3 has been in advance moved underneath the pouring I
7 ~2~88~
spout 14.
After the setting and fixing of the turntable 1, in the interior of the crucible 5 there is introduced the elect trove 21 of the detector 15 for the level by means of the rotating drum 20 and the vertical power cylinder 19. In this position, a charge of molten metal is poured from the respect live metering device 10 via the heated pouring spout 14 to the crucible 5. When a preset level in the crucible 5 is reached, the molten metal comes into contact with the electrode 21 of the detector 15 for the level and closes the circuit for its control. As a result, the electrode 21 is removed from the mirror of the molten metal and, at that, it moves the rotate in drum 20 by means of the vertical power cylinder 19 and the turntable 1 can rotate. Simultaneously, there is fed a command for interrupting the supply of molten metal from the metering device 10 and the turntable 1 is rotated at one step for charging with molten metal the next following unit 2, which comes into the zone of the pouring spout 14 of the metering device lo. In the unit 2 charged with molten metal, there is introduced, by means of the mechanism 12 for vertical and horizontal motion, the bottom sealed chamber 3 into the zone of the unit 2 underneath the intermediate platen 7. The lock-in mechanism 11 is actuated, thus pressing the bottom sealed chamber 3 against the bottom face of the intermediate platen 7, thereby effecting its sealing. The movable platen 9 is lowered in end bottom position by the two transfer power cylinders 13 and it is locked by the locking wedge-type mocha-nisms 41 to the bottom recesses of the guiding columns 8. Thus, the top semi-hood 43 is pressed against the bottom semi-hood 44 and its sealing from the atmosphere is effected. The movable mound half 36 and the fixed mound half 37 are also closed. A pressure difference is produced between the bottom 3 and the top sealed chambers, and the metal is transferred via the metal conduit 6 from the crucible 5 to the casting ,;' ~L2~88;~7 mound. After the solidification of the metal, the locking wedge-type mechanisms 41 are unlocked and the two transfer cylinders 13 are actuated. Thus the movable 36 and the fixed mound halves are separated. The movable platen 9 is again locked with the locking wedge-type mechanism 41 to the top recesses of both guiding columns 8. When the turntable, and the respective unit 2, are moved to the position of rem-vet of the ready casting 17, in the zonk of the opened casting mound there introduced the reception platform 23 of the device 16 for the removal of the ready casting 17, and the casting 17 is automatically removed from the top half of the casting mound 36 by means of the knockout mechanism 42. The ready casting is taken on the reception platform 23. After the removal of the ready casting 17, the stop bars 32 are moved downwards by means of the levers 34 and the power cylinder 48, and in the case when the casting 17 is seized by the ejectors of the mound, the stop bars 32 get between the casting 17 and the top part of the casting mound 36. When the ejectors return in initial position, the stop bars 32 supported by the spring-loaded paws 47 are entrained upwards by the ready casting 17 seized by the ejectors and when coming in contact with the upper part of the casting mound, separate the ready casting 17 from the ejectors. The ready casting 17 falls onto the reception platform 23, while the stop bars 32 return under the action of the spring-loaded paws 47 in their initial position. For the reliable simultaneous knockout of two or more castings 17, seized to the top half 36 of the casting mound in the case of a multi cavity mound, the stop bars 32 are fixed on the spring-loaded paws 47 by means of the elastic elements 33.
After the return of the ejectors in initial position, the stop bars 32 are separated from the levers 34, which are rotated around the horizontal axis of the power cylinder 48 and the reception platform 23 with the ready casting 17 is removed from the space of the casting mound.
~LX~8B~
The removal of the reception platform 23 is effected by the horizontal power cylinder 28 by means of the lever 27, with the hingedly fastened to it link gear 26, which acts on the flanges 24. As a result, the horizontal guides 25 are moved along the sleeves of the body 22, and the hingedly fastened reception platform 23 to the flanges 24 is displaced.
At the end of the displacement of the cams 30, the reception platform 23 is sloped by the stops 29 of the body 22, and it is rotated and transfers the casting 17 to the reception device 46.
When the turntable 1 is rotated and the subsequent open unit 2 with the ready casting 17 is positioned, the reception platform 23 is again introduced in the space of the casting mound. At that, separating itself from the stops 29, the reception platform 23 is turned and takes up a horizontal position, being in contact with the cams 30 in the stops 45 of the flanges 24.
Simultaneously with the rotation of the turntable 1, the sealed chamber 3 is taken out in front of the respective unit 2 .
I.
121~38Z7 which has terminated the casting. In this situation, this unit 2 is transferred to the zone of attendance where it is inspected visually, the oxides in the sealed chamber 3 are cleaned and the surfaces of the cavity walls of the casting mound are coated.
The device for checking the level 15 provides for a reliable operation of the line in automatic operation, regardless of the quantity of molten metal remaining in the crucible 5 after each cycle.
~L2~8~3~7 and a top 4 sealed chambers. In the bottom sealed chamber 3 there is disposed a crucible 5 with molten metal, and in the top sealed chamber 4 - the casting mound consisting of a mow viable 36 and a fixed 37 mound halves. The casting mound and the crucible 5 for molten metal are connected by means of a metal conduit 6, mounted to an intermediate platen 7, to which there are installed two immovable guiding columns 8.
To the guiding columns 8 there is mounted by means of sleeves a movable platen 9. The guiding columns 8 are attached to the upper face of the intermediate platen 7 by means of sleeves 38, nuts 39 and semi-rings 40. To the both Tom face of the intermediate platen 7 there are mounted a locking mechanism 11 and a mechanism for simultaneous vertical and horizontal displacement 12 of the bottom sealed chamber 3. To the upper face of the movable platen 9 there are mounted a locking wedge-type mechanism 41 and a knock-out mechanism 42. To the bottom face of the movable platen 9 there are attached the movable mound half 36 and the top semi-hood 43.
To the intermediate platen 7 there are mounted the fixed mound half 37 and the bottom semi-hood 44. To the intermediate platen 7 there are mounted rigidly two transfer power Solon-dons 13, to the piston rods of which there is attached the movable platen 9.
Outside the turntable machine there are installed two successively operating metering devices 10. To the bodies of the metering devices 10 there are fastened hingedly the pour-in spouts 14. Between the pouring spouts 14 or closely to one of the spouts 14 of the metering devices 10, there is mounted a device 15 for checking the level of the molten metal in the respective sealed chamber 3.
The device 15 for checking the level of the molten metal in the crucibles 5 comprises a support 13, to which there is mounted a vertical power cylinder 19. Its piston rod 50 is connected to a rotating drum 20, to which there is or fastened a detector for the level 21.
The line is provided with a device 16 for the removal of the ready casting 17 from the counter-pressure casting unit 2 and its conveying to the reception device 46, such as a con-voyeur. The device 46 is mounted in the position of the turn-table machine for removal of the ready casting 17. The device for the removal 16 of the ready casting 17 comprises a body 22 and a reception platform 23, which is hingedly connected to flanges, which are rigidly fastened to horizontal guides 25.
The horizontal guides 25 are installed in sleeves in the body 22. The flanges 24 are connected to a link mechanism 26 and a lever 27, which rotates the reception platform 23 and is connected to a horizontal power cylinder 28. The horizontal power cylinder 28 is rigidly fastened to the body 22. To the body 22 there are mounted stops 29 and to the reception platform 23 - cams 30, connected to mechanisms 31 for separate in the ready casting 17. The flanges are provided with stops 45, intended for retaining the reception platform 23 in horn-zontal position.
The mechanism for separating 31 the ready casting 17 comprises stop bars 32, which are fastened by means of elastic elements 33 to spring-loaded paws 47. On the reception platform 23 there are mounted spring-loaded paws 47 by means of levers 34, which are hingedly fastened to it. The levers 34 are connected to a power cylinder 48, which is fastened to the reception platform 23.
The line is provided with a control desk 48, which is installed close to the zone of attendance of the turntable machine.
The line operates as follows:
In the case of automatic operation of the line, the turntable 1 is rotated by the control desk 48 so, that each unit 2 takes in succession a position for charging with molten metal from the metering device 10, and the respective sealed chamber 3 has been in advance moved underneath the pouring I
7 ~2~88~
spout 14.
After the setting and fixing of the turntable 1, in the interior of the crucible 5 there is introduced the elect trove 21 of the detector 15 for the level by means of the rotating drum 20 and the vertical power cylinder 19. In this position, a charge of molten metal is poured from the respect live metering device 10 via the heated pouring spout 14 to the crucible 5. When a preset level in the crucible 5 is reached, the molten metal comes into contact with the electrode 21 of the detector 15 for the level and closes the circuit for its control. As a result, the electrode 21 is removed from the mirror of the molten metal and, at that, it moves the rotate in drum 20 by means of the vertical power cylinder 19 and the turntable 1 can rotate. Simultaneously, there is fed a command for interrupting the supply of molten metal from the metering device 10 and the turntable 1 is rotated at one step for charging with molten metal the next following unit 2, which comes into the zone of the pouring spout 14 of the metering device lo. In the unit 2 charged with molten metal, there is introduced, by means of the mechanism 12 for vertical and horizontal motion, the bottom sealed chamber 3 into the zone of the unit 2 underneath the intermediate platen 7. The lock-in mechanism 11 is actuated, thus pressing the bottom sealed chamber 3 against the bottom face of the intermediate platen 7, thereby effecting its sealing. The movable platen 9 is lowered in end bottom position by the two transfer power cylinders 13 and it is locked by the locking wedge-type mocha-nisms 41 to the bottom recesses of the guiding columns 8. Thus, the top semi-hood 43 is pressed against the bottom semi-hood 44 and its sealing from the atmosphere is effected. The movable mound half 36 and the fixed mound half 37 are also closed. A pressure difference is produced between the bottom 3 and the top sealed chambers, and the metal is transferred via the metal conduit 6 from the crucible 5 to the casting ,;' ~L2~88;~7 mound. After the solidification of the metal, the locking wedge-type mechanisms 41 are unlocked and the two transfer cylinders 13 are actuated. Thus the movable 36 and the fixed mound halves are separated. The movable platen 9 is again locked with the locking wedge-type mechanism 41 to the top recesses of both guiding columns 8. When the turntable, and the respective unit 2, are moved to the position of rem-vet of the ready casting 17, in the zonk of the opened casting mound there introduced the reception platform 23 of the device 16 for the removal of the ready casting 17, and the casting 17 is automatically removed from the top half of the casting mound 36 by means of the knockout mechanism 42. The ready casting is taken on the reception platform 23. After the removal of the ready casting 17, the stop bars 32 are moved downwards by means of the levers 34 and the power cylinder 48, and in the case when the casting 17 is seized by the ejectors of the mound, the stop bars 32 get between the casting 17 and the top part of the casting mound 36. When the ejectors return in initial position, the stop bars 32 supported by the spring-loaded paws 47 are entrained upwards by the ready casting 17 seized by the ejectors and when coming in contact with the upper part of the casting mound, separate the ready casting 17 from the ejectors. The ready casting 17 falls onto the reception platform 23, while the stop bars 32 return under the action of the spring-loaded paws 47 in their initial position. For the reliable simultaneous knockout of two or more castings 17, seized to the top half 36 of the casting mound in the case of a multi cavity mound, the stop bars 32 are fixed on the spring-loaded paws 47 by means of the elastic elements 33.
After the return of the ejectors in initial position, the stop bars 32 are separated from the levers 34, which are rotated around the horizontal axis of the power cylinder 48 and the reception platform 23 with the ready casting 17 is removed from the space of the casting mound.
~LX~8B~
The removal of the reception platform 23 is effected by the horizontal power cylinder 28 by means of the lever 27, with the hingedly fastened to it link gear 26, which acts on the flanges 24. As a result, the horizontal guides 25 are moved along the sleeves of the body 22, and the hingedly fastened reception platform 23 to the flanges 24 is displaced.
At the end of the displacement of the cams 30, the reception platform 23 is sloped by the stops 29 of the body 22, and it is rotated and transfers the casting 17 to the reception device 46.
When the turntable 1 is rotated and the subsequent open unit 2 with the ready casting 17 is positioned, the reception platform 23 is again introduced in the space of the casting mound. At that, separating itself from the stops 29, the reception platform 23 is turned and takes up a horizontal position, being in contact with the cams 30 in the stops 45 of the flanges 24.
Simultaneously with the rotation of the turntable 1, the sealed chamber 3 is taken out in front of the respective unit 2 .
I.
121~38Z7 which has terminated the casting. In this situation, this unit 2 is transferred to the zone of attendance where it is inspected visually, the oxides in the sealed chamber 3 are cleaned and the surfaces of the cavity walls of the casting mound are coated.
The device for checking the level 15 provides for a reliable operation of the line in automatic operation, regardless of the quantity of molten metal remaining in the crucible 5 after each cycle.
Claims (6)
1. A line for the production of castings, com-prising:
- a turntable provided with counter-pressure casting units, each unit comprising sealed chambers with casting moulds and crucibles with molten metal, each casting mould being provided with a device for the displacement and closing thereof, metering devices with pouring spouts being provided outside said turntable, said line further comprising:
- a device provided between said pouring spouts or adjacent to one pouring spout for checking the level of the molten metal in the respective sealed chamber, and - in the position of the turntable for removal of a casting, a device for such removal of the casting.
- a turntable provided with counter-pressure casting units, each unit comprising sealed chambers with casting moulds and crucibles with molten metal, each casting mould being provided with a device for the displacement and closing thereof, metering devices with pouring spouts being provided outside said turntable, said line further comprising:
- a device provided between said pouring spouts or adjacent to one pouring spout for checking the level of the molten metal in the respective sealed chamber, and - in the position of the turntable for removal of a casting, a device for such removal of the casting.
2. A line for the production of castings according to claim 1, wherein:
- each counter-pressure unit comprises a bottom sealed chamber provided with a crucible filled with a molten metal and a top sealed chamber containing a casting mould;
- an intermediate platen between said casting mould and said crucible, a conduit being provided in said intermediate platen for connecting said crucible and said casting mould;
- guiding columns connected to the upper face of the intermediate platen;
- a locking mechanism and a mechanism for simulta-neous vertical and horizontal displacement of the bottom sealed chamber, connected to the bottom face of the inter-mediate platen, and - transfer power cylinders connected to said inter-mediate platen.
- each counter-pressure unit comprises a bottom sealed chamber provided with a crucible filled with a molten metal and a top sealed chamber containing a casting mould;
- an intermediate platen between said casting mould and said crucible, a conduit being provided in said intermediate platen for connecting said crucible and said casting mould;
- guiding columns connected to the upper face of the intermediate platen;
- a locking mechanism and a mechanism for simulta-neous vertical and horizontal displacement of the bottom sealed chamber, connected to the bottom face of the inter-mediate platen, and - transfer power cylinders connected to said inter-mediate platen.
3. A line for the production of castings according to claim 2, wherein a movable platen is mounted on said guiding columns which are two in number, and wherein said casting mould comprises a movable upper half mould and a fixed lower half mould, said upper movalbe half mould, along with a top semi-hood being connected to the bottom face of the movable platen, and said lower fixed half mould along with a bottom semi-hood being connected to said intermediate platen, said transfer power cylinders which are two in number having piston rods to which is attached said movable platen.
4. A line for the production of castings according to claim 1, wherein said device for checking the level of molten metal in the respective sealed chamber comprises a support, provided with a vertical power cylinder, connected to a rotating drum, level detector being connected to said drum.
5. A line for the production of castings according to claim 1, wherein: .
- said device for the removal of the casting com-prises a body and reception platform, said platform being hingedly connected to flanges, and said flanges being rigidly connected to horizontal guides, - said horizontal guides are installed in sleeves in the body, and said flanges are connected to a link mecha-nism and a lever, said lever rotating the reception platform which is connected to a horizontal power cylinder rigidly fastened to the body, the body being provided with stops, and - cams are connected to the reception platform, said cams being connected to mechanisms for separating the castings.
- said device for the removal of the casting com-prises a body and reception platform, said platform being hingedly connected to flanges, and said flanges being rigidly connected to horizontal guides, - said horizontal guides are installed in sleeves in the body, and said flanges are connected to a link mecha-nism and a lever, said lever rotating the reception platform which is connected to a horizontal power cylinder rigidly fastened to the body, the body being provided with stops, and - cams are connected to the reception platform, said cams being connected to mechanisms for separating the castings.
6. A line for the production of castings according to claim 4, wherein said mechanisms for the separation of the castings comprises stop bars, connected to spring-loaded pawls by means of elastic elements and rigidly fastened levers, said levers being hingedly connected to said reception plats form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000456709A CA1218827A (en) | 1984-06-15 | 1984-06-15 | Line for the production of castings, particularly by counter-pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000456709A CA1218827A (en) | 1984-06-15 | 1984-06-15 | Line for the production of castings, particularly by counter-pressure casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1218827A true CA1218827A (en) | 1987-03-10 |
Family
ID=4128110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000456709A Expired CA1218827A (en) | 1984-06-15 | 1984-06-15 | Line for the production of castings, particularly by counter-pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1218827A (en) |
-
1984
- 1984-06-15 CA CA000456709A patent/CA1218827A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19613668C1 (en) | Pressure die casting apparatus | |
| EP0300519B1 (en) | Process and apparatus for the production of packages of cosmetic products with powders of different characteristics | |
| DE2451921C3 (en) | Process and integrated furnace system for the continuous production of individual castings | |
| US4240497A (en) | Vacuum metal die-casting apparatus | |
| US3504731A (en) | Battery element fabricating machine | |
| EP0507963B1 (en) | Device for metallic mold on molding machine | |
| EP0029511A1 (en) | Method and device for die casting molten metal, in particular molten light alloy | |
| CA1218827A (en) | Line for the production of castings, particularly by counter-pressure casting | |
| DE3422121A1 (en) | Production line for the production of castings, in particular by counterpressure die casting | |
| US4699199A (en) | Automated mold making system | |
| US3547181A (en) | Casting apparatus | |
| WO2001005537A1 (en) | Vertical die-casting press | |
| US4531961A (en) | Modular section molding press and mold clamping and article removal mechanism therefor | |
| EP0499301A2 (en) | Improvements in the production of granular crackers | |
| US3599707A (en) | Machine for chill-casting under hydrostatic pressure | |
| US4044818A (en) | Apparatus for forming sand molds | |
| SU1079359A1 (en) | Installation for hot compacting of powder | |
| EP1326726A1 (en) | Method and apparatus for setpwise advancing moulds in a mould-string foundry plant | |
| SU1525007A1 (en) | Automatic unit for manufacturing articles from thermosetting moulding materials | |
| SU1747238A1 (en) | Vacuum melting and pouring installation | |
| RU2031757C1 (en) | Facility for casting with crystallization under pressure | |
| SU1720791A1 (en) | Turret-type chill casting arrangement | |
| RU2018441C1 (en) | Constructional products manufacturing press | |
| WO1990013381A1 (en) | Induction melting and casting furnace | |
| SU1133018A1 (en) | Appliance for manufacturing horizontally divided boxless sand moulds |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |