CN116984595B - Negative pressure system of casting pouring line - Google Patents
Negative pressure system of casting pouring line Download PDFInfo
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- CN116984595B CN116984595B CN202310937603.3A CN202310937603A CN116984595B CN 116984595 B CN116984595 B CN 116984595B CN 202310937603 A CN202310937603 A CN 202310937603A CN 116984595 B CN116984595 B CN 116984595B
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- negative pressure
- casting
- pushing
- cavity
- rod
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- 238000005266 casting Methods 0.000 title claims abstract description 100
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000006004 Quartz sand Substances 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 14
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 11
- 238000009434 installation Methods 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 244000035744 Hura crepitans Species 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007528 sand casting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/04—Handling or stripping castings or ingots
-
- 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 Devices For Molds (AREA)
Abstract
The invention discloses a negative pressure system of a casting pouring line, which comprises an upper die, a lower die, a negative pressure barrel and a pneumatic pump, wherein an upper cavity is formed in the upper die, a lower cavity is formed in the lower die, the upper cavity and the lower cavity jointly form a casting cavity, a pouring pipe is arranged on the upper die, the lower die is connected with the negative pressure barrel through a communicating pipe, the negative pressure barrel is communicated with the pneumatic pump through the pneumatic pipe, an exhaust pipe is communicated with the negative pressure barrel, and a one-way valve is arranged on the exhaust pipe; the negative pressure barrel is internally and vertically provided with a mounting shaft, the mounting shaft is provided with a driving mechanism, and the mounting shaft is provided with a piston mechanism. The advantages are that: the invention has ingenious and reasonable design, realizes the movement of the quartz sand disc by changing the pressure intensity, further realizes the separation of the casting in the casting cavity, does not shake in the process of separating the casting from the casting cavity, does not collide with the casting cavity wall, and ensures the quality of the casting.
Description
Technical Field
The invention relates to the technical field of casting, in particular to a negative pressure system of a casting pouring line.
Background
In the industry, casting methods commonly used in the past include sand casting, metal mold casting, centrifugal casting, continuous casting, and the like. The sand casting has the advantages of low cost and easy obtainment of molding materials, simple and convenient casting mold manufacture, convenient mass production and manufacture and the like, and has wide application in industrial production. The machine tool body and the headstock are large in size, complex in shape, and large in number of cavities, and are difficult to perform by cutting, so that the industrial production is generally performed by casting. In the precision casting process, resin sand molds are usually adopted for casting, and the resin sand molds have the advantages of easy compaction, good rigidity, high precision and the like, and the quality of castings cast by adopting the resin sand molds is high, so that the resin sand molds are widely applied.
The existing resin sand mould casting generally comprises the steps of placing a mould in a resin sand box, compacting resin sand in the sand box through a press, taking out the mould, forming a cavity on the resin sand mould, then coating refractory coating materials on the cavity wall of the cavity by personnel, attaching two corresponding resin sand mould blocks to form a casting mould, leaving a hole and a casting opening at the top of the casting mould, casting molten iron into the cavity through the casting opening by personnel, filling the cavity, cooling the molten iron to form a casting, and removing the casting mould by personnel to take out the casting.
However, in the process of taking out the casting, the casting can be slightly sticky with the inner wall of the cavity after cooling, the casting needs to be rocked to remove the sticky between the inner wall of the cavity and the casting and then taken out in the process of taking out the casting, and the casting can be damaged due to collision generated between the outer wall of the casting and the die in the process of rocking, so that the casting is worn, and the quality of the casting is affected.
To this end, we propose a negative pressure system of a casting line to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a negative pressure system of a casting line.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the negative pressure system of the casting pouring line comprises an upper die, a lower die, a negative pressure barrel and a pneumatic pump, wherein an upper cavity is formed in the upper die, a lower cavity is formed in the lower die, the upper cavity and the lower cavity jointly form a casting cavity, a pouring pipe is arranged on the upper die and communicated with the casting cavity, the lower die is connected with the negative pressure barrel through a communicating pipe, the negative pressure barrel is communicated with the pneumatic pump through the pneumatic pipe, an exhaust pipe is communicated with the negative pressure barrel, and a one-way valve is arranged on the exhaust pipe;
the installation shaft is vertically installed in the negative pressure barrel, the driving mechanism is installed on the installation shaft, the piston mechanism is installed on the installation shaft, the braking mechanism is installed between the piston mechanism and the negative pressure barrel, two arc rods are symmetrically installed at the output end of the movable mechanism, the two arc rods penetrate through the negative pressure barrel and extend into the communicating pipe, and are fixedly connected with quartz sand plates, the upper end faces of the quartz sand plates and the inner bottom wall of the casting cavity are located in the same plane, a reset spring is jointly installed between the lower end faces of the quartz sand plates and the upper surface of the negative pressure barrel, and the reset spring is located between the two arc rods.
In the negative pressure system of the casting line, the driving mechanism comprises a protective box, a driving motor is mounted on the lower end face of the protective box, an output shaft of the driving motor extends into the protective box and is provided with a first gear, the lower end of the mounting shaft extends into the protective box and is provided with a second gear, and the second gear is meshed with the first gear.
In the negative pressure system of the casting line, the number of teeth of the first gear is smaller than that of the second gear.
In the negative pressure system of the casting line, the piston mechanism comprises a piston plate, a sliding sealing piece is arranged between the piston plate and the mounting shaft, and the piston plate is attached to the inner wall of the negative pressure barrel.
In the negative pressure system of the casting pouring line, the piston plate comprises a rubber seat, a plurality of limiting grooves are symmetrically and vertically formed in the inner side wall of the negative pressure barrel, a plurality of T-shaped limiting blocks are symmetrically formed in the outer side wall of the rubber seat, and each T-shaped limiting block is slidably connected in the corresponding limiting groove.
In the negative pressure system of the casting pouring line, the braking mechanism comprises a pushing seat, a stop mechanism is jointly arranged between the pushing seat and the piston plate, a stop groove is formed in the inner side wall of the negative pressure barrel, and the stop mechanism is clamped in the stop groove.
In the negative pressure system of the casting pouring line, the stop mechanism comprises a push rod and a moving rod, the push rod is located in the push seat, the moving rod is located in the piston plate, a connecting rod is installed on the moving rod, a stop ball is installed on the connecting rod and located in the stop groove, a first limiting disc is fixedly connected to the moving rod, the diameter of the first limiting disc is larger than that of the moving rod, a second limiting disc is fixedly connected to the push rod, and the diameter of the second limiting disc is larger than that of the push rod.
In the negative pressure system of the casting pouring line, a plurality of arc grooves are formed in the upper end face of the rubber seat, the moving rod is located in the arc grooves, a first annular movable cavity is formed in the rubber seat, the first limiting disc is located in the first annular movable cavity, and each arc groove is communicated with the first annular movable cavity.
In the negative pressure system of the casting line, the pushing seat comprises a pushing plate, a plurality of pushing grooves are formed in the lower surface of the pushing plate, the pushing rods are located in the pushing grooves, a second annular movable cavity is formed in the pushing plate, each pushing groove is communicated with the second annular movable cavity, and the second limiting disc is located in the second annular movable cavity.
In the negative pressure system of the casting line, the pushing seat is provided with the connecting hole, the inner side wall of the connecting hole is symmetrically provided with the plurality of limiting grooves, the outer side wall of the mounting shaft is symmetrically provided with the plurality of limiting rods, and each limiting rod is positioned in the corresponding limiting groove.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the movement of the piston plate is realized by changing the pressure between the inner bottom wall of the negative pressure barrel and the lower surface of the piston plate through the pneumatic pump, the volume between the upper surface of the piston plate and the inner top wall of the negative pressure barrel is changed in the movement process of the piston plate, so that the pressure is changed, and further, the quartz sand disc is driven to move in the communicating pipe through the arc rod, and further, the casting is pushed to be separated from the casting cavity through the quartz sand disc, the casting does not shake in the process of separating the casting from the casting cavity, the collision condition between the casting and the casting cavity wall is avoided, and the quality of the casting is ensured.
2. Before pouring, the pushing seat is driven to rotate by the driving motor, the first gear and the second gear, the stop mechanism is moved in position by the pushing groove and the arc groove on the pushing seat, the piston mechanism is fixed by the stop ball and the stop groove, the pressure stability of the space between the upper surface of the piston plate and the inner top wall of the negative pressure barrel is further ensured, the upper surface of the quartz sand disc is kept flush with the inner bottom wall of the lower cavity, and the normal pouring is ensured.
3. The piston plate and the quartz sand disc are pushed through the negative pressure barrel and the internal piston mechanism thereof, the pneumatic pump is prevented from being directly connected with the communicating pipe, if the pneumatic pump is directly connected with the communicating pipe, the pipe diameters of the communicating pipe and the output pipeline of the pneumatic pump are smaller, the pneumatic pump slightly pressurizes the piston plate and the quartz sand disc, namely, the distance for moving is more, the process of the piston plate and the quartz sand disc is inconvenient to control, and the pneumatic pump can be convenient for controlling the distance for the casting to break away from the casting cavity by buffering through the negative pressure barrel.
In conclusion, the invention has ingenious and reasonable design, realizes the movement of the quartz sand disc by changing the pressure, further realizes the separation of the casting in the casting cavity, does not shake in the process of separating the casting from the casting cavity, does not collide with the casting cavity wall, and ensures the quality of the casting.
Drawings
FIG. 1 is a schematic diagram of a negative pressure system of a casting line according to the present invention;
FIG. 2 is a visual view showing the cut-away states of an upper die and a lower die in a negative pressure system of a casting line;
FIG. 3 is a schematic view showing the internal structure of a negative pressure barrel in a negative pressure system of a casting line according to the present invention;
FIG. 4 is a schematic view of the structure of the limit groove and the stop groove in the negative pressure barrel in the negative pressure system of the casting line;
FIG. 5 is an enlarged view showing the structure of the installation shaft part in the negative pressure system of the casting line according to the present invention;
FIG. 6 is an enlarged view showing the connection state of the piston mechanism and the brake mechanism in the negative pressure system of the casting line according to the present invention;
FIG. 7 is an enlarged view of the piston plate structure in a negative pressure system of a casting line according to the present invention;
FIG. 8 is an enlarged view of the pushing seat in the negative pressure system of the casting line according to the present invention;
fig. 9 is an enlarged view of a negative pressure system stopping mechanism of a casting line according to the present invention.
In the figure: 1 an upper die, 2 a lower die, 3 a pouring pipe, 4 a communicating pipe, 5 a negative pressure barrel, 6 a protective box, 7 a driving motor, 8 a pneumatic pipe, 9 a pneumatic pump, 10 a casting cavity, 11 a first gear, 12 a mounting shaft, 13 a second gear, 14 a stop slot, 15 a stop slot, 16 a piston plate, 17 a pushing seat, 18 a stop mechanism, 19 a limiting rod, 20 a quartz sand disc, 21 an arc rod and 22 a return spring;
1601 a rubber seat, 1602 a first annular movable cavity, 1603 a cylinder seat, 1604 mounting holes, 1605 a stabilizing disc, 1606 an arc-shaped groove, 1607T-shaped limiting blocks and 1608 arc-shaped holes;
1701 a pusher plate, 1702 a connecting hole, 1703 defining a slot, 1704 a second annular active cavity, 1705 a pusher slot;
1801 moving rod, 1802 pushing rod, 1803 first limit disk, 1804 second limit disk, 1805 connecting rod, 1806 stop ball.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.
Examples
Referring to fig. 1-2, a negative pressure system of a casting pouring line comprises an upper die 1, a lower die 2, a negative pressure barrel 5 and a pneumatic pump 9, wherein an upper cavity is formed in the upper die 1, a lower cavity is formed in the lower die 2, the upper cavity and the lower cavity jointly form a casting cavity 10, a pouring pipe 3 is arranged on the upper die 1, the pouring pipe 3 is communicated with the casting cavity 10, the lower die 2 is connected with the negative pressure barrel 5 through a communicating pipe 4, the negative pressure barrel 5 is communicated with the pneumatic pump 9 through a pneumatic pipe 8, an exhaust pipe is communicated with the negative pressure barrel 5, and a one-way valve is arranged on the exhaust pipe;
referring to fig. 3, an installation shaft 12 is vertically installed in the negative pressure barrel 5, a driving mechanism is installed on the installation shaft 12, the driving mechanism comprises a protective box 6, a driving motor 7 is installed on the lower end face of the protective box 6, an output shaft of the driving motor 7 extends into the protective box 6 and is provided with a first gear 11, the lower end of the installation shaft 12 extends into the protective box 6 and is provided with a second gear 13, the second gear 13 is meshed with the first gear 11, the number of teeth of the first gear 11 is smaller than that of the second gear 13, the rotation speed of the output shaft of the driving motor 7 is faster, the rotation speed of the installation shaft 12 is reduced through the change of the number of teeth of the first gear 11 and the second gear 13, and damage to parts installed on the installation shaft 12 caused by excessive rotation speed is avoided;
referring to fig. 2-5, a piston mechanism is mounted on a mounting shaft 12, the piston mechanism comprises a piston plate 16, mounting holes 1604 are formed in the piston plate 16, a sliding rotary sealing piece is mounted between the piston plate 16 and the mounting shaft 12, the sliding rotary sealing piece is positioned in the mounting holes 1604, the piston plate 16 is tightly attached to the inner wall of a negative pressure barrel 5, the piston plate 16 comprises a rubber seat 1601, a plurality of limit grooves 15 are symmetrically and vertically formed in the inner side wall of the negative pressure barrel 5, a plurality of T-shaped limit blocks 1607 are symmetrically formed in the outer side wall of the rubber seat 1601, each T-shaped limit block 1607 is in sliding connection with the corresponding limit groove 15 in position, when the mounting shaft 12 rotates, it is ensured that the piston plate 16 cannot rotate along with the mounting shaft 12, two arc rods 21 are symmetrically mounted on the upper end surfaces of the piston plate 16, the mounting shaft 12 is positioned between the two arc rods 21, a sliding sealing piece is arranged between each arc rod 21 and the negative pressure barrel 5, the tail ends of the two arc rods 21 penetrate through the negative pressure barrel 5 to extend into the negative pressure barrel 4 and are fixedly connected with a quartz sand disc 20, the quartz sand disc 20 is cast on the same surface as the two arc-shaped sand disc 20, and the two sand disc 20 are positioned on the same arc-shaped surface as the inner bottom surface of the reset spring 22;
referring to fig. 5-6 and 8-9, a braking mechanism is installed between the piston mechanism and the negative pressure barrel 5, the braking mechanism comprises a pushing seat 17, an exhaust pipe is arranged between the lower end surface of the pushing seat 17 and the negative pressure barrel 5, further, a connecting hole 1702 is formed in the pushing seat 17, a plurality of limiting grooves 1703 are symmetrically formed in the inner side wall of the connecting hole 1702, a plurality of limiting rods 19 are symmetrically installed on the outer side wall of the mounting shaft 12, each limiting rod 19 is located in a corresponding limiting groove 1703, the structure can ensure that the pushing seat 17 can rotate along with the mounting shaft 12 when the mounting shaft 12 rotates, and when the mounting shaft 12 does not rotate, the pushing seat 17 can slide on the mounting shaft 12, a stop mechanism 18 is jointly installed between the pushing seat 17 and the plate 16, a stop groove 14 is formed in the inner side wall of the negative pressure barrel 5, and the stop mechanism 18 is clamped in the stop groove 14;
referring to fig. 9, the stop mechanism 18 includes a push rod 1802 and a moving rod 1801, the push rod 1802 is located in the push seat 17, the moving rod 1801 is located in the piston plate 16, a connecting rod 1805 is installed on the moving rod 1801, a stop ball 1806 is installed on the connecting rod 1805, the stop ball 1806 is located in the stop groove 14, a first limiting disc 1803 is fixedly connected to the moving rod 1801, the diameter of the first limiting disc 1803 is larger than the diameter of the moving rod 1801, a second limiting disc 1804 is fixedly connected to the push rod 1802, and the diameter of the second limiting disc 1804 is larger than the diameter of the push rod 1802;
referring to fig. 6-7, a plurality of arc grooves 1606 are formed in the upper end surface of the rubber seat 1601, the circle centers of the arc grooves 1606 are located on a concentric circle with the rubber seat 1601, the circle centers of any two arc grooves 1606 are not located at the same position, a moving rod 1801 is located in the arc grooves 1606, the outer side wall of the moving rod 1801 is in contact with the inner wall of the arc grooves 1606, a first annular movable cavity 1602 is formed in the rubber seat 1601, a first limit disc 1803 is located in the first annular movable cavity 1602, the upper end surface of the first limit disc 1803 is in contact with the inner top wall of the first annular movable cavity 1602, and each arc groove 1606 is communicated with the first annular movable cavity 1602; a cylindrical seat 1603 is arranged on the lower end surface of the rubber seat 1601, a stabilizing disc 1605 is arranged on the cylindrical seat 1603, a plurality of arc-shaped holes 1608 are symmetrically formed on the stabilizing disc 1605, the positions of the arc-shaped holes 1608 correspond to the positions of the arc-shaped grooves 1606, and the moving rod 1801 is positioned in the arc-shaped holes 1608;
referring to fig. 6 and 8, the pushing seat 17 includes a pushing plate 1701, a plurality of pushing grooves 1705 are formed on an s upper surface of the pushing plate 1701, the pushing rod 1802 is located in the pushing groove 1705, an outer surface of the pushing rod 1802 is in contact with an inner wall of the pushing groove 1705, an axis of each pushing groove 1705 is parallel to a line where a radius of the surface of the pushing plate 1701 is located, a second annular movable cavity 1704 is formed in the pushing plate 1701, each pushing groove 1705 is communicated with the second annular movable cavity 1704, the second limiting plate 1804 is located in the second annular movable cavity 1704, and a lower surface of the second limiting plate 1804 is in contact with an inner bottom wall of the second annular movable cavity 1704.
Working principle:
when casting pouring is carried out, pouring liquid is poured into a casting cavity 10 through a pouring pipe 3, an upper die 1 is taken out from a lower die 2 after the pouring liquid is cooled and formed, a casting is clamped in the lower die cavity due to gravity of the casting, the casting is tightly attached to the inner wall of the lower die cavity due to pouring and forming, then a pneumatic pump 9 is started, the pneumatic pump 9 increases the air pressure between the inner top wall of a negative pressure barrel 5 and the lower surface of a piston plate 16 through a pneumatic pipe 8, the air pressure between the inner top wall of the negative pressure barrel 5 and the lower surface of the piston plate 16 increases to push the piston plate 16 to move upwards, the volume between the upper surface of the piston plate 16 and the inner bottom wall of the negative pressure barrel 5 is reduced, the pressure is increased, a quartz sand disc 20 is driven to move upwards through an arc-shaped rod 21 in the process of upward movement of the piston plate 16, a reset spring 22 is prolonged along with the casting is pushed to move upwards in the process of upward movement of the quartz sand disc 20, and the casting is separated from the lower die cavity;
after the casting is separated, when the device needs to be reset, a one-way valve on the exhaust pipe is opened, the elastic force of the reset spring 22 for restoring the original length drives the quartz sand tray 20 and the piston plate 16 to move downwards, and the exhaust pipe discharges the gas between the lower surface of the pushing seat 17 and the negative pressure barrel 5 until the reset spring 22 returns to the original length;
it is worth noting that before pouring the casting tube 3 into the casting cavity 10, the driving motor 7 is turned on, the output shaft of the driving motor 7 drives the first gear 11 to rotate forward, the first gear 11 drives the second gear 13 to rotate through gear engagement, the pushing seat 17 mounted on the mounting shaft 12 through the limiting groove 1703 and the limiting rod 19 rotates along with the limiting groove in the process of rotating the second gear 13, the pushing groove 1705 formed at the upper end of the pushing plate 1701 is formed along the radius of the surface of the pushing plate 301, when the pushing plate 1701 rotates, the pushing groove 1705 must rotate along with the pushing groove 1705, then the side wall of the pushing groove 1705 enables the moving rod 1801 to move in the arc-shaped hole 1608 and the arc-shaped groove 1606 through pushing the pushing rod 1802, when the moving rod 1801 moves to one end of the arc-shaped groove 1606 close to the center of the rubber seat 1601, the connecting rod 1805 drives the stop ball 1806 to move outwards until the stop ball 1806 is clamped in the stop groove 14, at this time, the spaces h and 4 between the lower surface of the piston plate 16 and the inner bottom wall of the negative pressure barrel 5 and the inner bottom wall of the piston plate 22 are stable, the side wall of the space k inside the space k is kept flush with the inner bottom surface of the casting cavity 20, and the normal pressure intensity of the casting cavity is guaranteed;
before the pneumatic pump 9 is started after pouring is finished, the driving motor 7 is started, an output shaft of the driving motor 7 drives the first gear 11 to reversely rotate, the stop ball 1806 is driven to move between the rubber seat 1601 and the stabilizing disc 1605 by the piston mechanism and the braking mechanism, the stop ball 1806 is separated from the stop groove 14, and at the moment, the movement of the piston plate 16 in the process of pressurizing the pneumatic pump 9 into the negative pressure barrel 5 through the pneumatic tube 8 cannot be limited by the stop ball 1806.
Although terms such as the upper mold 1, the lower mold 2, the pouring tube 3, the communication tube 4, the negative pressure tub 5, the protective housing 6, the driving motor 7, the air pressure tube 8, the air pressure pump 9, the casting cavity 10, the first gear 11, the mounting shaft 12, the second gear 13, the stopper groove 14, the stopper groove 15, the piston plate 16, the rubber mount 1601, the first annular movable cavity 1602, the cylindrical mount 1603, the mounting hole 1604, the fixing plate 1605, the arc-shaped groove 1606, the T-shaped stopper 1607, the arc-shaped hole 1608, the push mount 17, the push plate 1701, the connection hole 1702, the defining groove 1703, the second annular movable cavity 1704, the push groove 1705, the stopper mechanism 18, the moving rod 1801, the push rod, the first stopper plate 1803, the second stopper plate 1804, the connecting rod 1805, the stopper ball 1806, the stopper rod 19, the sand tray 20, the arc-shaped rod 21, the return spring 22, etc. are used herein are not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (6)
1. The utility model provides a negative pressure system of casting pouring line, includes mould (1), bed die (2), negative pressure bucket (5) and pneumatic pump (9), go up and seted up on mould (1) and go up the die cavity, set up down the die cavity on bed die (2), go up die cavity and lower die cavity and constitute foundry goods chamber (10) jointly, be equipped with pouring tube (3) on going up mould (1), and pouring tube (3) and foundry goods chamber (10) intercommunication, its characterized in that: the lower die (2) is connected with the negative pressure barrel (5) through a communicating pipe (4), the negative pressure barrel (5) is communicated with the pneumatic pump (9) through a pneumatic pipe (8), a quartz sand disc (20) and a piston sheet (22) are connected inside the communicating pipe (4) in a sliding manner, the upper end face of the quartz sand disc (20) and the inner bottom wall of the casting cavity (10) are located on the same plane, and a piston connecting rod (21) is connected between the quartz sand disc (20) and the piston sheet (22) together;
a mounting shaft (12) is vertically arranged in the negative pressure barrel (5), a driving mechanism is arranged on the mounting shaft (12), a piston mechanism is arranged on the mounting shaft (12), and a braking mechanism is arranged between the piston mechanism and the negative pressure barrel (5);
the piston mechanism comprises a piston plate (16), a sliding sealing piece is arranged between the piston plate (16) and the mounting shaft (12), the piston plate (16) is attached to the inner wall of the negative pressure barrel (5), the piston plate (16) comprises a rubber seat (1601), a plurality of limiting grooves (15) are symmetrically and vertically formed in the inner side wall of the negative pressure barrel (5), a plurality of T-shaped limiting blocks (1607) are symmetrically formed in the outer side wall of the rubber seat (1601), and each T-shaped limiting block (1607) is slidably connected in the corresponding limiting groove (15);
the braking mechanism comprises a pushing seat (17), a stop mechanism (18) is jointly installed between the pushing seat (17) and the piston plate (16), a stop groove (14) is formed in the inner side wall of the negative pressure barrel (5), the stop mechanism (18) is clamped in the stop groove (14), the stop mechanism (18) comprises a pushing rod (1802) and a moving rod (1801), the pushing rod (1802) is located in the pushing seat (17), the moving rod (1801) is located in the piston plate (16), the moving rod (1801) is provided with a connecting rod (1805), a stop ball (1806) is installed on the connecting rod (1805), the stop ball (1806) is located in the stop groove (14), a first limit disc (1803) is fixedly connected to the moving rod (1801), the diameter of the first limit disc (1803) is larger than that of the moving rod (1801), a second limit disc (1802) is fixedly connected to the pushing rod (1802), and the diameter of the second limit disc (1804) is larger than that of the moving rod (1804).
2. A negative pressure system of a casting line according to claim 1, characterized in that: the driving mechanism comprises a protective box (6), a driving motor (7) is mounted on the upper end face of the protective box (6), an output shaft of the driving motor (7) extends into the protective box (6) and is provided with a first gear (11), the upper end of the mounting shaft (12) extends into the protective box (6) and is provided with a second gear (13), and the second gear (13) is meshed with the first gear (11).
3. A negative pressure system of a casting line according to claim 2, characterized in that: the number of teeth of the first gear (11) is smaller than the number of teeth of the second gear (13).
4. A negative pressure system of a casting line according to claim 1, characterized in that: the upper end face of rubber seat (1601) has seted up a plurality of arc grooves (1606), and movable rod (1801) are located arc groove (1606), first annular movable chamber (1602) has been seted up in rubber seat (1601), and first spacing dish (1803) are located first annular movable chamber (1602), and every arc groove (1606) all communicates with first annular movable chamber (1602).
5. A negative pressure system of a casting line according to claim 1, characterized in that: the pushing seat (17) comprises a pushing plate (1701), a plurality of pushing grooves (1705) are formed in the lower surface of the pushing plate (1701), pushing rods (1802) are located in the pushing grooves (1705), a second annular movable cavity (1704) is formed in the pushing plate (1701), each pushing groove (1705) is communicated with the second annular movable cavity (1704), and a second limiting disc (1804) is located in the second annular movable cavity (1704).
6. A negative pressure system of a casting line according to claim 1, characterized in that: the pushing seat (17) is provided with a connecting hole (1702), the inner side wall of the connecting hole (1702) is symmetrically provided with a plurality of limiting grooves (1703), the outer side wall of the mounting shaft (12) is symmetrically provided with a plurality of limiting rods (19), and each limiting rod (19) is located in the corresponding limiting groove (1703).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310937603.3A CN116984595B (en) | 2023-07-28 | 2023-07-28 | Negative pressure system of casting pouring line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310937603.3A CN116984595B (en) | 2023-07-28 | 2023-07-28 | Negative pressure system of casting pouring line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116984595A CN116984595A (en) | 2023-11-03 |
| CN116984595B true CN116984595B (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310937603.3A Active CN116984595B (en) | 2023-07-28 | 2023-07-28 | Negative pressure system of casting pouring line |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343927A (en) * | 1990-10-05 | 1994-09-06 | Tour & Andersson Ab | Method and a device for press casting |
| CN201446213U (en) * | 2009-09-03 | 2010-05-05 | 颜凤娟 | Apparatus for lost foam casting |
| CN106077489A (en) * | 2016-07-28 | 2016-11-09 | 巢湖市聚源机械有限公司 | A kind of automatization metal casting device |
| CN111299545A (en) * | 2020-04-10 | 2020-06-19 | 台州巨东精密铸造有限公司 | Negative-pressure resin sand casting mold and casting process thereof |
| CN214321704U (en) * | 2020-11-27 | 2021-10-01 | 宝鸡中海机械设备有限公司 | Negative pressure mould casting system |
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2023
- 2023-07-28 CN CN202310937603.3A patent/CN116984595B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343927A (en) * | 1990-10-05 | 1994-09-06 | Tour & Andersson Ab | Method and a device for press casting |
| CN201446213U (en) * | 2009-09-03 | 2010-05-05 | 颜凤娟 | Apparatus for lost foam casting |
| CN106077489A (en) * | 2016-07-28 | 2016-11-09 | 巢湖市聚源机械有限公司 | A kind of automatization metal casting device |
| CN111299545A (en) * | 2020-04-10 | 2020-06-19 | 台州巨东精密铸造有限公司 | Negative-pressure resin sand casting mold and casting process thereof |
| CN214321704U (en) * | 2020-11-27 | 2021-10-01 | 宝鸡中海机械设备有限公司 | Negative pressure mould casting system |
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| CN116984595A (en) | 2023-11-03 |
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