CN111318639B

CN111318639B - Casting system with noise reduction function

Info

Publication number: CN111318639B
Application number: CN202010282173.2A
Authority: CN
Inventors: 罗厚镇
Original assignee: Qingdao Banghe Foundry Co ltd
Current assignee: QINGDAO BANGHE FOUNDRY Co.,Ltd.
Priority date: 2020-04-11
Filing date: 2020-04-11
Publication date: 2021-07-02
Anticipated expiration: 2040-04-11
Also published as: CN111318639A

Abstract

The invention belongs to the technical field of casting, and particularly relates to a casting system with a noise reduction function, which aims at solving the problems that the prior sand mixer can generate very large noise pollution when mixing and stirring used sand, new sand, a molding sand adhesive and auxiliary materials, and the used sand and the new sand are lack of filtration before stirring, so that the later-stage production quality is easily caused. The noise reduction and sound insulation device is simple in structure and convenient to use, can be used for noise reduction and sound insulation, and can be used for filtering and stirring materials, so that the noise reduction and sound insulation device is convenient for people to use.

Description

Casting system with noise reduction function

Technical Field

The invention belongs to the technical field of casting, and particularly relates to a casting system with a noise reduction function.

Background

Casting is one of the fundamental processes in the modern machine manufacturing industry. Casting is developed gradually in China as a metal hot working process. The casting machine is all the mechanical equipment which can be used for smelting metal into liquid meeting certain requirements by using the technology, pouring the liquid into a casting mold, cooling, solidifying and cleaning to obtain a casting with preset shape, size and performance, and is also called as casting equipment. The casting equipment comprises a sand mixer, a shakeout machine, a shot blasting machine, a core making machine, a molding machine and a casting machine. The sand mixer is used for casting equipment for mixing molding sand or core sand. Sand mixers generally have the following functions: mixing the used sand, the new sand, the molding sand adhesive and the auxiliary materials uniformly.

The existing sand mixer can generate very large noise pollution when mixing and stirring used sand, new sand, a molding sand adhesive and auxiliary materials, certain body injury is caused to operating personnel, and meanwhile, the used sand and the new sand are not filtered before stirring, so that the later-stage production quality is easily caused, and therefore a casting system with a noise reduction function is provided.

Disclosure of Invention

The invention aims to solve the defects that the existing sand mixer can generate very large noise pollution when mixing and stirring old sand, new sand, a molding sand adhesive and auxiliary materials, certain physical injury is caused to operators, and the old sand and the new sand are lack of filtration before stirring, so that the later-stage production quality is easily caused.

In order to achieve the purpose, the invention adopts the following technical scheme:

a casting system with a noise reduction function comprises a base, wherein four symmetrically-arranged supporting legs are fixedly mounted at the top of the base, the top of the four supporting legs is fixedly provided with a same box body, four symmetrically-arranged supporting rods are fixedly mounted at the top of the base, a same top plate is fixedly mounted at the top ends of the four supporting rods, two symmetrically-arranged feeding hoppers are fixedly mounted at the top of the top plate, a blanking pipe is fixedly mounted at the bottom of each feeding hopper, the bottom end of each blanking pipe is fixedly connected with the inner wall of the bottom of the box body, a first motor is fixedly mounted at the top of the top plate, a first rotating rod is fixedly mounted on an output shaft of the first motor, a filtering plate is fixedly mounted on the inner wall of the box body, the bottom end of each first rotating rod extends into the box body and is fixedly provided with four symmetrically-arranged connecting rods, a fixed block, equal fixed mounting has a plurality of stirring rods on first bull stick and the second bull stick, fixed mounting has the holding ring on the box inner wall, and the top fixed mounting of holding ring has first stock guide, and fixed mounting has the second stock guide on the bottom inner wall of box, fixed mounting has the discharging pipe on the bottom inner wall of box, is equipped with the valve on the discharging pipe, the bottom fixed mounting of roof has the second motor, and the bottom fixed mounting of roof has the positioning seat, and fixed mounting has the pivot on the output shaft of second motor, rotates on pivot and the positioning seat to be connected, and the bottom fixed mounting of roof has the location case that four symmetries set up, rotates on two location cases that correspond to be connected with same first sleeve pipe, and two first sleeve pipes are connected with the pivot transmission.

Preferably, the sliding tray that two symmetries set up is seted up at the top of box, fixed mounting has the slide bar on the inner wall of sliding tray, sliding connection has the push pedal on the slide bar, the equal fixed mounting in one side that two push pedals were kept away from each other has reset spring and baffle, the inner wall fixed connection of reset spring and the sliding tray that corresponds, the baffle cooperatees with the unloading pipe that corresponds, and fixed mounting has the cam on the first bull stick, the cam cooperatees with two push pedals, pivoted first bull stick can drive the baffle through the cooperation of cam and push pedal and carry out the blowing to the unloading pipe.

Preferably, sliding connection has the cover frame on the top inner wall of box, and fixed mounting has the ratch on the both sides inner wall of cover frame, and fixed mounting has sector gear on the first bull stick, and sector gear cooperatees with two ratches, and pivoted sector gear drives the cover frame round trip movement through mutually supporting with two ratches.

Preferably, two symmetrically-arranged moving grooves are formed in the inner wall of the top of the box body, moving blocks are connected in the moving grooves in a sliding mode, the two moving blocks are fixedly connected with the sleeve frame, and the moving grooves and the moving blocks can position the sleeve frame.

Preferably, the bottom fixed mounting of cover frame has the push rod that two symmetries set up, and sliding connection has the ejector pin on the push rod, and the equal fixed mounting of one end that two ejector pins kept away from each other has the scraper blade, and the scraper blade cooperatees with the filter, and the top fixed mounting of ejector pin has supporting spring, supporting spring's top and cover frame fixed connection, and removal cover frame can drive the scraper blade through push rod and ejector pin and scrape the material to the filter.

Preferably, the discharge opening has all been seted up to the both sides of box, and the discharge opening cooperatees with the scraper blade that corresponds, and the material that the scraper blade promoted can be discharged through the discharge opening.

Preferably, a rack is fixedly mounted on the inner side of the positioning ring, a gear is fixedly mounted on the second rotating rod, the two gears are meshed with the rack, and the first rotating rod can drive the second rotating rod to revolve and rotate simultaneously through the mutual meshing of the gear and the rack.

Preferably, the fixed cover in the outside of pivot is equipped with first sprocket, and two first sheathed tube outsides are all fixed the cover and are equipped with the second sprocket, and meshing and same chain on first sprocket and two second sprockets, pivoted pivot can drive two first sleeves and rotate simultaneously through the intermeshing of first sprocket, two second sprockets and chain.

Preferably, one side that two corresponding location casees kept away from each other all rotates and is connected with the second sleeve pipe, be equipped with two opposite screw threads on the first sheathed tube inner wall, and the equal thread bush in first sheathed tube both ends and second sheathed tube one end is equipped with the carriage release lever, all rotate on two carriage release levers with one side and be connected with the connecting seat, fixed mounting has same apron on two connecting seats with one side, the carriage release lever of removal is connected through the rotation with the connecting seat, can promote the apron and carry out the angle change, and then drive the apron and seal completely to the device.

Preferably, the fixed cover in first sheathed tube outside is equipped with two first conical gear that the symmetry set up, and second sheathed tube one end fixed mounting has a second conical gear, and first conical gear and the second conical gear intermeshing that corresponds, pivoted first sleeve can drive the second sleeve through the intermeshing of first conical gear and second conical gear and rotate.

Compared with the prior art, the invention has the advantages that:

1. due to the fact that the cam is matched with the two push plates, and the sector gear is matched with the two toothed bars, when the rotating first rotating rod drives the baffle plate to seal the material guide pipe on one side through the cam and the push plates, the sleeve frame can discharge unfiltered materials on the filter plate through the ejector rod and the scraper plate, and the material guide pipe is convenient for people to use;

2. due to the fact that the gear and the rack are meshed with each other, and the two fixing blocks on the same side are connected with the second rotating rod in a rotating mode, the rotating first rotating rod can drive the second rotating rod to revolve and simultaneously rotate, and materials are stirred more uniformly by the first rotating rod and the second rotating rod;

3. because the intermeshing of first sprocket, two second sprockets and chain for pivoted pivot can drive two first sleeves and rotate simultaneously, simultaneously because first conical gear and second conical gear intermeshing for pivoted first sleeve drives the second sleeve and rotates, and then drives the apron through the threaded connection with the carriage release lever and opens and close, makes things convenient for people to use.

The noise reduction and sound insulation device is simple in structure and convenient to use, can be used for noise reduction and sound insulation, and can be used for filtering and stirring materials, so that the noise reduction and sound insulation device is convenient for people to use.

Drawings

FIG. 1 is a schematic structural view of a casting system with noise reduction according to the present invention;

FIG. 2 is a cross-sectional view of a jacket frame of a casting system with noise reduction according to the present invention;

FIG. 3 is a schematic cross-sectional view A-A of a casting system with noise reduction according to the present invention;

FIG. 4 is a schematic view of a connection between a jacket frame and a box body of a casting system with a noise reduction function according to the present invention;

fig. 5 is a schematic structural diagram of a part B of a casting system with a noise reduction function according to the present invention.

In the figure: the device comprises a base 1, a box body 2, a supporting rod 3, a top plate 4, a feeding hopper 5, a discharging pipe 6, a first motor 7, a first rotating rod 8, a cam 9, a baffle 10, a push plate 11, a sliding groove 12, a sliding rod 13, a reset spring 14, a sector gear 15, a sleeve frame 16, a moving groove 17, a moving block 18, a push rod 19, a push rod 20, a support spring 21, a scraper 22, a filter plate 23, a discharging hole 24, a first guide plate 25, a positioning ring 26, a connecting rod 27, a fixing block 28, a second rotating rod 29, a gear 30, a stirring rod 31, a second guide plate 32, a discharging pipe 33, a valve 34, a positioning box 35, a first sleeve 36, a second sleeve 37, a moving rod 38, a connecting seat 39, a cover plate 40, a second motor 41, a positioning seat 42 and.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Example one

Referring to fig. 1-5, a casting system with noise reduction function comprises a base 1, four symmetrically arranged supporting legs are fixedly installed at the top of the base 1, the top of the four supporting legs is fixedly installed with a same box body 2, four symmetrically arranged supporting rods 3 are fixedly installed at the top of the base 1, a same top plate 4 is fixedly installed at the top ends of the four supporting rods 3, two symmetrically arranged feeding hoppers 5 are fixedly installed at the top of the top plate 4, a blanking pipe 6 is fixedly installed at the bottom of the feeding hopper 5, the bottom end of the blanking pipe 6 is fixedly connected with the inner wall of the bottom of the box body 2, a first motor 7 is fixedly installed at the top of the top plate 4, a first rotating rod 8 is fixedly installed on an output shaft of the first motor 7, a filter plate 23 is fixedly installed on the inner wall of the box body 2, the bottom end of the first rotating rod 8 extends into, one end of the connecting rod 27 is fixedly provided with a fixed block 28, two fixed blocks 28 on the same side are rotatably connected with a second rotating rod 29, a plurality of stirring rods 31 are fixedly arranged on the first rotating rod 8 and the second rotating rod 29, a positioning ring 26 is fixedly arranged on the inner wall of the box body 2, a first material guide plate 25 is fixedly arranged at the top of the positioning ring 26, a second material guide plate 32 is fixedly arranged on the inner wall of the bottom of the box body 2, a material discharging pipe 33 is fixedly arranged on the inner wall of the bottom of the box body 2, a valve 34 is arranged on the material discharging pipe 33, a second motor 41 is fixedly arranged at the bottom of the top plate 4, a positioning seat 42 is fixedly arranged at the bottom of the top plate 4, a rotating shaft 43 is fixedly arranged on an output shaft of the second motor 41, the rotating shaft 43 is rotatably connected with the positioning seat 42, four positioning boxes 35 which are symmetrically arranged are, the two first sleeves 36 are in driving connection with the rotating shaft 43.

In this embodiment, two sliding tray 12 that the symmetry set up are seted up at the top of box 2, fixed mounting has slide bar 13 on the inner wall of sliding tray 12, sliding connection has push pedal 11 on slide bar 13, the equal fixed mounting in one side that two push pedals 11 kept away from each other has reset spring 14 and baffle 10, reset spring 14 and the inner wall fixed connection of the sliding tray 12 that corresponds, baffle 10 cooperatees with the unloading pipe 6 that corresponds, and fixed mounting has cam 9 on the first bull stick 8, cam 9 cooperatees with two push pedals 11.

In this embodiment, sliding connection has a cover frame 16 on the top inner wall of box 2, and fixed mounting has the ratch on the both sides inner wall of cover frame 16, and fixed mounting has sector gear 15 on the first bull stick 8, and sector gear 15 cooperatees with two ratches.

In this embodiment, two symmetrically-arranged moving grooves 17 are formed in the inner wall of the top of the box body 2, moving blocks 18 are slidably connected in the moving grooves 17, and the two moving blocks 18 are fixedly connected with the sleeve frame 16.

In this embodiment, the bottom of the jacket frame 16 is fixedly provided with two push rods 19 symmetrically arranged, the push rods 19 are connected with ejector rods 20 in a sliding manner, one ends of the two ejector rods 20 away from each other are fixedly provided with scrapers 22, the scrapers 22 are matched with the filter plate 23, the top of each ejector rod 20 is fixedly provided with a supporting spring 21, and the top of each supporting spring 21 is fixedly connected with the jacket frame 16.

In this embodiment, the discharge holes 24 are formed on both sides of the box body 2, and the discharge holes 24 are matched with the corresponding scrapers 22.

In this embodiment, a rack is fixedly mounted on the inner side of the positioning ring 26, a gear 30 is fixedly mounted on the second rotating rod 29, and both the gears 30 are engaged with the rack.

In this embodiment, the outer side of the rotating shaft 43 is fixedly sleeved with a first chain wheel, the outer sides of the two first sleeves 36 are fixedly sleeved with a second chain wheel, and the first chain wheel and the two second chain wheels are engaged with the same chain.

In this embodiment, one side that two corresponding location casees 35 kept away from each other all rotates and is connected with second sleeve 37, is equipped with two opposite screw threads on the inner wall of first sleeve 36, and the equal thread bush in both ends of first sleeve 36 and the one end of second sleeve 37 is equipped with carriage release lever 38, all rotates on two carriage release levers 38 with one side and is connected with connecting seat 39, and fixed mounting has same apron 40 on two connecting seats 39 with one side.

In this embodiment, two first bevel gears symmetrically arranged are fixedly sleeved on the outer side of the first sleeve 36, a second bevel gear is fixedly mounted at one end of the second sleeve 37, and the first bevel gears are engaged with the corresponding second bevel gears.

Example two

Referring to fig. 1-5, a casting system with noise reduction function comprises a base 1, four symmetrically arranged supporting legs welded on the top of the base 1, a same box body 2 welded on the top of the four supporting legs, four symmetrically arranged supporting rods 3 welded on the top of the base 1, a same top plate 4 welded on the top of the four supporting rods 3, two symmetrically arranged feeding hoppers 5 welded on the top of the top plate 4, a blanking pipe 6 welded on the bottom of the feeding hopper 5, the bottom end of the blanking pipe 6 fixedly connected with the inner wall of the bottom of the box body 2, a first motor 7 welded on the top of the top plate 4, a first rotating rod 8 welded on the output shaft of the first motor 7, a filter plate 23 welded on the inner wall of the box body 2, the bottom end of the first rotating rod 8 extending into the box body 2 and welded with four symmetrically arranged connecting rods 27, a fixed block 28, rotate on two fixed blocks 28 with one side and be connected with second bull stick 29, all weld on first bull stick 8 and the second bull stick 29 has a plurality of stirring rods 31, the welding has holding ring 26 on the box 2 inner wall, the welding has first stock guide 25 at the top of holding ring 26, the welding has second stock guide 32 on the bottom inner wall of box 2, the welding has discharging pipe 33 on the bottom inner wall of box 2, be equipped with valve 34 on the discharging pipe 33, the welding has second motor 41 in the bottom of roof 4, the welding has positioning seat 42 in the bottom of roof 4, the welding has pivot 43 on the output shaft of second motor 41, rotate on pivot 43 and the positioning seat 42 and be connected, the welding has the location case 35 of four symmetry settings in the bottom of roof 4, rotate on two corresponding location cases 35 and be connected with same first sleeve 36, two first sleeve 36 are connected with pivot 43 transmission.

In this embodiment, the sliding tray 12 that two symmetries set up is seted up at the top of box 2, the welding has slide bar 13 on the inner wall of sliding tray 12, sliding connection has push pedal 11 on slide bar 13, reset spring 14 and baffle 10 have all been welded to one side that two push pedals 11 kept away from each other, the inner wall fixed connection of reset spring 14 and the sliding tray 12 that corresponds, baffle 10 cooperatees with the unloading pipe 6 that corresponds, and the welding has cam 9 on the first bull stick 8, cam 9 cooperatees with two push pedals 11, pivoted first bull stick 8 can drive baffle 10 through cam 9 and push pedal 11's cooperation and carry out the blowing to unloading pipe 6.

In this embodiment, sliding connection has a cover frame 16 on the top inner wall of box 2, and the welding has the ratch on the both sides inner wall of cover frame 16, and the welding has sector gear 15 on the first bull stick 8, and sector gear 15 cooperatees with two ratches, and pivoted sector gear 15 drives cover frame 16 round trip movement through mutually supporting with two ratches.

In this embodiment, two symmetrically-arranged moving grooves 17 are formed in the inner wall of the top of the box body 2, moving blocks 18 are connected in the moving grooves 17 in a sliding mode, the two moving blocks 18 are fixedly connected with the sleeve frame 16, and the moving grooves 17 and the moving blocks 18 can position the sleeve frame 16.

In this embodiment, the bottom welding of cover frame 16 has the push rod 19 that two symmetries set up, and sliding connection has ejector pin 20 on the push rod 19, and the scraper blade 22 has all been welded to the one end that two ejector pins 20 kept away from each other, and scraper blade 22 cooperatees with filter 23, and the top welding of ejector pin 20 has supporting spring 21, and supporting spring 21's top and cover frame 16 fixed connection move cover frame 16 and can drive scraper blade 22 through push rod 19 and ejector pin 20 and scrape the material to filter 23.

In this embodiment, discharge opening 24 has all been seted up to the both sides of box 2, and discharge opening 24 cooperatees with the scraper blade 22 that corresponds, and the material that scraper blade 22 promoted can discharge through discharge opening 24.

In this embodiment, a rack is welded on the inner side of the positioning ring 26, a gear 30 is welded on the second rotating rod 29, both the gears 30 are engaged with the rack, and the rotating first rotating rod 8 can drive the second rotating rod 29 to revolve and rotate simultaneously through the engagement between the gear 30 and the rack.

In this embodiment, the fixed cover in the outside of pivot 43 is equipped with first sprocket, and the fixed cover in the outside of two first sleeves 36 is equipped with the second sprocket, meshing and same chain on first sprocket and two second sprockets, and pivoted pivot 43 can drive two first sleeves 36 and rotate simultaneously through the intermeshing of first sprocket, two second sprockets and chain.

In this embodiment, the one side of keeping away from each other of two corresponding location casees 35 all rotates and is connected with second sleeve 37, be equipped with two opposite screw threads on first sleeve 36's the inner wall, and the equal thread bush in both ends of first sleeve 36 and second sleeve 37's one end is equipped with carriage release lever 38, all rotate on two carriage release levers 38 with one side and be connected with connecting seat 39, the welding has same apron 40 on two connecting seats 39 with one side, the carriage release lever 38 of removal is connected through the rotation with connecting seat 39, can promote the apron and carry out the angle change, and then drive apron 40 and seal the isolated to the device.

In this embodiment, the fixed cover in the outside of first sleeve pipe 36 is equipped with two first conical gears that the symmetry set up, and the one end welding of second sleeve pipe 37 has second conical gear, and first conical gear and the second conical gear intermeshing that corresponds, pivoted first sleeve pipe 36 can drive second sleeve pipe 37 through the intermeshing of first conical gear and second conical gear and rotate.

In the embodiment, when old sand, new sand, a molding sand adhesive and auxiliary materials are required to be mixed and stirred, the materials are poured into the box body 2 through the feed hopper 5, the switch of the first motor 7 is started, the output shaft of the first motor 7 drives the first rotating rod 8 to rotate, the first rotating rod 8 drives the cam 9 to rotate, the rotating cam 9 drives the push plates 11 on two sides to move back and forth through matching with the push plates 11, the push plates 11 drive the baffle plates 10 to intermittently discharge the materials in the material guide pipe 6, meanwhile, the reset spring 14 can reset the moving push plates 11, meanwhile, the rotating first rotating rod 8 is matched with the two toothed bars through the sector gear 15, so that the rotating first rotating rod 8 can drive the sleeve frame 16 to move back and forth, when the sleeve frame 16 moves towards the left side, the rotating first rotating rod 8 can drive the baffle plate 10 on the left side to seal the material guide pipe 6 through the cam 9, the moving sleeve frame 16 drives the push rod 19 to move, the push rod 19 drives the push rod 20 to move, the push rod 20 drives the scraper 22 to push the unfiltered materials on the filter plate 23 and discharge the unfiltered materials through the discharge hole 24, the rotating first rotating rod 8 drives the four connecting rods 27 to rotate, the connecting rods 27 drive the fixed block 28 to rotate, the rotating fixed block 28 drives the two second rotating rods 29 to revolve, the rotating second rotating rods 29 can rotate due to the mutual meshing of the gear 30 and the rack, so that the rotating first rotating rod 8 and the rotating second rotating rods 29 can uniformly stir the materials in the box body 2, the materials are discharged through the discharge pipe 33 after the stirring is finished, meanwhile, the cover plate 40 can seal and insulate the sound of the device, the noise inside the device during operation can be minimized, when the materials are uniformly stirred, the second motor 41 is started to be switched on and switched off, the output shaft of second motor 41 drives pivot 43 and rotates, pivot 43 is through first sprocket, the intermeshing of two second sprockets and chain drives two first sleeves 36 and rotates, first sleeve 36 drives two second sleeves 37 through the intermeshing of two first conical gears and two second conical gears that correspond and rotates simultaneously, pivoted first sleeve 36 and second sleeve 37 drive the carriage release lever 38 and move, carriage release lever 38 is connected through the rotation with corresponding connecting seat 39 and is driven apron 40 and carry out the angle change, and then drive opening of apron 40, make things convenient for people to clean and renovate box 2.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention in the technical scope of the present invention.

Claims

1. A casting system with a noise reduction function comprises a base (1) and is characterized in that four symmetrically-arranged supporting legs are fixedly mounted at the top of the base (1), the top of each supporting leg is fixedly provided with a same box body (2), four symmetrically-arranged supporting rods (3) are fixedly mounted at the top of the base (1), a same top plate (4) is fixedly mounted at the top ends of the four supporting rods (3), two symmetrically-arranged feeding hoppers (5) are fixedly mounted at the top of the top plate (4), a discharging pipe (6) is fixedly mounted at the bottom of each feeding hopper (5), the bottom end of each discharging pipe (6) is fixedly connected with the inner wall of the bottom of the box body (2), a first motor (7) is fixedly mounted at the top of the top plate (4), a first rotating rod (8) is fixedly mounted on an output shaft of the first motor (7), and a filter plate (23) is fixedly mounted on the inner wall of, the bottom of first bull stick (8) extends to in box (2) and fixed mounting has four connecting rods (27) that the symmetry set up, and the one end fixed mounting of connecting rod (27) has fixed block (28), rotates on two fixed blocks (28) with one side and is connected with second bull stick (29), and equal fixed mounting has a plurality of stirring rods (31) on first bull stick (8) and second bull stick (29), fixed mounting has holding ring (26) on the box (2) inner wall, and the top fixed mounting of holding ring (26) has first stock guide (25), and fixed mounting has second stock guide (32) on the bottom inner wall of box (2), fixed mounting has discharging pipe (33) on the bottom inner wall of box (2), is equipped with valve (34) on discharging pipe (33), the bottom fixed mounting of roof (4) has second motor (41), and the bottom fixed mounting of roof (4) has positioning seat (42), a rotating shaft (43) is fixedly installed on an output shaft of the second motor (41), the rotating shaft (43) is connected with the positioning seat (42) in a rotating mode, four symmetrically-arranged positioning boxes (35) are fixedly installed at the bottom of the top plate (4), the two corresponding positioning boxes (35) are connected with the same first sleeve (36) in a rotating mode, and the two first sleeves (36) are in transmission connection with the rotating shaft (43);

the blanking device is characterized in that two sliding grooves (12) which are symmetrically arranged are formed in the top of the box body (2), a sliding rod (13) is fixedly mounted on the inner wall of each sliding groove (12), a pushing plate (11) is connected onto each sliding rod (13) in a sliding mode, a reset spring (14) and a baffle (10) are fixedly mounted on one side, away from each other, of each two pushing plates (11), each reset spring (14) is fixedly connected with the inner wall of the corresponding sliding groove (12), each baffle (10) is matched with the corresponding blanking pipe (6), a cam (9) is fixedly mounted on each first rotating rod (8), and each cam (9) is matched with the two pushing plates (11);

a sleeve frame (16) is connected to the inner wall of the top of the box body (2) in a sliding mode, toothed bars are fixedly installed on the inner walls of the two sides of the sleeve frame (16), a sector gear (15) is fixedly installed on the first rotating rod (8), and the sector gear (15) is matched with the two toothed bars;

the bottom fixed mounting of cover frame (16) has push rod (19) that two symmetries set up, and sliding connection has ejector pin (20) on push rod (19), and the equal fixed mounting of one end of keeping away from each other of two ejector pin (20) has scraper blade (22), and scraper blade (22) cooperate with filter (23), and the top fixed mounting of ejector pin (20) has supporting spring (21), the top and cover frame (16) fixed connection of supporting spring (21).

2. The casting system with the noise reduction function according to claim 1, wherein the inner wall of the top of the box body (2) is provided with two symmetrically-arranged moving grooves (17), moving blocks (18) are connected in the moving grooves (17) in a sliding manner, and the two moving blocks (18) are fixedly connected with the sleeve frame (16).

3. The casting system with the noise reduction function according to claim 1, wherein discharge holes (24) are formed in two sides of the box body (2), and the discharge holes (24) are matched with the corresponding scrapers (22).

4. A casting system with noise reduction function according to claim 1, characterized in that a rack is fixedly installed on the inner side of the positioning ring (26), a gear (30) is fixedly installed on the second rotating rod (29), and both gears (30) are meshed with the rack.

5. The casting system with noise reduction function according to claim 1, wherein the outer side of the rotating shaft (43) is fixedly sleeved with a first chain wheel, the outer sides of the two first sleeves (36) are fixedly sleeved with second chain wheels, and the first chain wheel and the two second chain wheels are meshed with the same chain.

6. The casting system with the noise reduction function according to claim 1, wherein a second sleeve (37) is rotatably connected to each of two sides of the corresponding positioning boxes (35) away from each other, two opposite threads are arranged on an inner wall of the first sleeve (36), a moving rod (38) is respectively and threadedly sleeved at two ends of the first sleeve (36) and one end of the second sleeve (37), two connecting seats (39) are rotatably connected to two moving rods (38) on the same side, and the same cover plate (40) is fixedly mounted on the two connecting seats (39) on the same side.

7. The casting system with the noise reduction function according to claim 1, wherein two first bevel gears which are symmetrically arranged are fixedly sleeved on the outer side of the first sleeve (36), a second bevel gear is fixedly installed at one end of the second sleeve (37), and the first bevel gears are meshed with the corresponding second bevel gears.