CN111069527B

CN111069527B - Rotor sand mixer for mixing malleable steel casting molding sand

Info

Publication number: CN111069527B
Application number: CN201911329245.8A
Authority: CN
Inventors: 王文君
Original assignee: Tangshan Hongtong Malleable Cast Iron Co ltd
Current assignee: Tangshan Hongtong Malleable Cast Iron Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2021-07-09
Anticipated expiration: 2039-12-20
Also published as: CN111069527A

Abstract

The invention relates to the technical field of mechanical equipment, in particular to a rotor sand mixer for mixing molding sand for malleable iron casting, which can conveniently lead equipment to be capable of continuously producing the molding sand by continuously mixing and processing raw sand, effectively improve the production speed of the molding sand and improve the working efficiency, and meanwhile, the mixing degree of the raw sand can be effectively improved by pushing the raw sand to carry out repeated reciprocating motion in the equipment, the retention time of the raw sand in the equipment is prolonged, and the practicability and the reliability are improved; comprises a rotating shaft and nine groups of mixing leaves.

Description

Rotor sand mixer for mixing malleable steel casting molding sand

Technical Field

The invention relates to the technical field of mechanical equipment, in particular to a rotor sand mixer for molding sand mixing of malleable iron casting.

Background

As is known, malleable iron foundry sand is generally required to carry out the compounding processing through the roller mill when making, thereby mix different composition in the molding sand, current roller mill is when using, at first pour external former sand into the roller mill, stirring rod through the roller mill internal rotation carries out mixing process, the roller mill can't carry out continuous guide to the former sand when operation, mix and arrange the work of material, can only mix to the former sand that has poured in the roller mill, molding sand production speed is slower, equipment continuous working ability is lower, lead to production efficiency lower, the former sand mixes through the stirring rod simultaneously, its stirring effect is relatively poor, former sand mixing uniformity is lower, lead to the molding sand production quality lower.

Disclosure of Invention

In order to solve the technical problems, the invention provides the rotor sand mixer for mixing the molding sand for malleable iron casting, which can conveniently enable equipment to continuously produce the molding sand, effectively improve the production speed of the molding sand and improve the working efficiency, and meanwhile, can effectively improve the mixing degree of the raw sand, prolong the retention time of the raw sand in the equipment and improve the practicability and the reliability by pushing the raw sand to perform repeated reciprocating motion in the equipment.

The invention discloses a rotor sand mixer for mixing malleable cast molding sand, which comprises a rotating shaft and nine groups of mixing leaves, wherein the inner ends of the nine groups of mixing leaves are uniformly obliquely arranged on the outer wall of the rotating shaft, and the nine groups of mixing leaves are arranged in a staggered manner; the device comprises an external raw sand pouring device, a rotating shaft, nine groups of mixing blades, a shell, nine groups of mixing blades, nine groups of molding leaves, nine groups of molding sand, nine groups of mixing leaves, nine groups of molding sand, nine groups of molding leaves, nine groups of mixing leaves, nine, The motor, four groups of supporting legs, the feeding pipe is arranged on the shell and communicated with the inside of the first cavity, a discharge hole is formed in the lower side of the right end of the first cavity in a communicated manner, and the discharge baffle is covered on the discharge hole; external raw sand falls into the shell through the feeding pipe, the motor is started, the motor drives the nine groups of mixing blades to rotate through the rotating shaft, the raw sand slides rightwards along the inner wall of the shell, the nine groups of mixing blades in the rotating state perform mixing treatment on the raw sand, molding sand is formed after the raw sand is mixed, the discharging baffle is opened, the molding sand mixed and completed in the shell is discharged into an external collecting device through the discharging port, thereby accomplish the production preparation of molding sand, still include six sets of reducing hammers, roll roller and sieve, six sets of reducing hammers, roll roller and sieve all are located the first cavity, six sets of reducing hammers evenly crisscross installation in the rotation axis outer wall left side, roll roller installs on the rotation axis, the left side outer wall of roll roller sets up to the conical wall, roll right side outer wall of roller evenly is provided with multiunit and rolls the awl, the sieve is located between roll roller and nine sets of mixing leaves, the sieve is installed on the rotation axis, but the outer wall of sieve and the first cavity inner wall sliding contact; when the rotating shaft rotates, the rotating shaft drives six groups of crushing hammers, the grinding roller, a plurality of groups of grinding cones and the sieve plate to rotate, external raw sand falls into the left side inside the rotating shaft through the feeding pipe, the six groups of crushing hammers in a rotating state carry out hammering and crushing treatment on the raw sand, so that the shape of the raw sand with larger particles is effectively reduced, the raw sand after primary crushing treatment slides rightwards along the inner wall of the shell and enters between the outer wall of the grinding roller and the inner wall of the shell, the conical wall on the left side of the grinding roller can carry out diversion treatment on the raw sand, the outer wall on the right side of the grinding roller and the plurality of groups of grinding cones in a rotating state carry out grinding treatment on the raw sand, so that the shape of the raw sand is further reduced, the raw sand after two times of crushing treatment slides rightwards and falls to the left end of the sieve plate, the rotating shaft drives the sieve plate to rotate, the sieve plate carries out screening treatment on the raw sand at the right, the former sand interception that can't pass the sieve rolls the awl through rolling roller and multiunit and rolls in succession and rolls shredding at the left of sieve, rotation state's sieve can carry out quick screening process to the former sand simultaneously, prevent that the former sand of sieve plate left end from causing the sieve to block up, through setting up six sets of reducing hammers, roll the roller, the multiunit rolls awl and sieve, can conveniently carry out the quick shredding process of multistage to the former sand, effectively reduce the operating pressure that nine sets of mixed leaves mix the former sand, make things convenient for the former sand can the intensive mixing, effectively improve molding sand production quality, and the high practicality is improved.

The rotor sand mixer for mixing the molding sand for the malleable iron casting also comprises three groups of return plates, wherein the three groups of return plates are uniformly and obliquely arranged on the outer side of the left end of the sieve plate, and are separated from the grinding roller; the sieve drives three group's returning charge plates and rotates when the sieve rotates, and three group's returning charge plates promote the great granule former sand of sieve plate left end interception and move left, and large granule former sand gets into again between rolling roller outer wall and the shell inner wall, through setting up three group's returning charge plates, can conveniently push away the material processing to the former sand that does not reach the regulation requirement, conveniently makes the former sand pulverize the processing again, and it piles up to reduce the former sand of sieve plate left end, prevents that the former sand from causing the sieve to block up, improves the practicality.

The invention relates to a rotor sand mixer for mixing malleable cast molding sand, which also comprises an air suction bin, an interception net, a purification bin, a filter plate, a wind shield, a cleaning plate, a second air pipe, an air pump and a third air pipe, wherein the air suction bin is transversely installed on a shell, the bottom end of the air suction bin is transversely communicated with an air suction groove, the bottom end of the air suction groove is communicated with the inside of a first cavity, the interception net is installed on the lower inner wall of the air suction groove, the top end of the air suction bin is transversely and uniformly provided with a plurality of groups of first air pipes, the bottom ends of the plurality of groups of first air pipes are communicated with the inside of the air suction groove, the purification bin is installed on the air suction bin, the inside of the purification bin is provided with a second cavity, the output ends of the plurality of groups of first air pipes are communicated with the inside of the second cavity, the filter plate is vertically installed on the right side of the inner wall of the second cavity, the wind shield is, the top end of the second cavity is communicated with a cleaning port, a cleaning plate is covered on the cleaning port, the air pump is positioned on the right side of the purification bin, the air pump is arranged on the air suction bin, the second cavity and the air pump are communicated with each other through a second air pipe, and a third air pipe is arranged on the air pump; when raw sand inside the shell is crushed and mixed, the raw sand is easy to generate more dust, the air pump is opened, the air pump sucks air in the purification bin through the second air pipe, negative pressure is formed inside the purification bin, the purification bin sucks dust in the shell through the multiple groups of first air pipes, the air suction bin and the interception net, the interception net intercepts the raw sand in the shell, so that the raw sand is separated from the dust, the dust enters the left side inside the purification bin and impacts on the wind shield, the flowing speed of the dust is reduced, the filter plate intercepts and filters the dust decelerated by the wind shield in the purification bin, the dust is intercepted at the left side of the filter plate, the air in the purification bin enters the right side inside the purification bin through the filter plate and is discharged to the outside through the second air pipe, the air pump and the third air pipe, the cleaning plate is opened, and the intercepted dust at the left side inside the purification bin can be cleaned through the cleaning port, the convenience is cleared up the absorptive dust of filter plate left wall simultaneously, improves the gas permeability of filter, through setting up the storehouse of breathing in, interception net, the first trachea of multiunit, purification storehouse, filter, deep bead, clearance board, second trachea, air pump and third trachea, can conveniently carry out effective absorption to the dust that produces when equipment operation and collect, prevents that the dust from causing the injury to environment and human body, improves practicality and reliability.

The invention relates to a rotor sand mixer for mixing malleable iron casting molding sand, which also comprises a protective cover, wherein the protective cover is positioned at the outer side of a motor and is arranged on a shell; through setting up the guard shield, can conveniently effectively protect the motor, prevent that external object from causing the damage of gouging to it, improve the security.

The rotor sand mixer for mixing the molding sand for malleable iron casting also comprises a guide plate, wherein the guide plate is arranged on the shell, the top end of the guide plate is transversely communicated with a guide chute, and the left end of the guide chute is communicated with the outer side of the right end of the discharge hole; open and arrange the material baffle, the molding sand in the shell passes through the bin outlet and discharges to the baffle box on the stock guide in, and the molding sand in the baffle box can conveniently be collected the molding sand through setting up the stock guide in the right-hand member discharge to external collection device of stock guide, prevents that it from spilling to the external world and causing the waste, improves the practicality.

The invention relates to a rotor sand mixer for mixing malleable iron casting molding sand, wherein three groups of magnetic columns are uniformly arranged at the left upper part of the inner wall of a feed pipe; in external former sand pours the shell into through the inlet pipe, three magnetic columns of group adsorb the filtration to the former sand that gets into in the inlet pipe and handle to make the iron debris in the former sand adsorb on three magnetic columns of group, prevent that iron debris from getting into in the equipment and causing the destruction to equipment, improve the purity of molding sand simultaneously, improve the reliability.

Compared with the prior art, the invention has the beneficial effects that: inside equipment is poured into to external former sand, axis of rotation and nine sets of mixing leaf rotate, nine sets of mixing leaf of rotation state stir mixing treatment in proper order to the former sand in the equipment, the molding sand after the mixture is discharged to the external world through the equipment right side, inside equipment can be poured into in succession to the former sand, nine sets of mixing leaf can stir mixing treatment to the former sand in succession, nine sets of mixing leaf all incline crisscross installation simultaneously, nine sets of mixing leaf can promote the molding sand in the equipment when rotating and carry out reciprocating motion many times between nine sets of mixing leaf, through carrying out continuous mixing treatment to the former sand, can conveniently make equipment can the continuous production molding sand, effectively improve molding sand production speed, improve work efficiency, carry out reciprocating motion many times in equipment through promoting the former sand simultaneously, can effectively improve former sand mixing degree, the dwell time of extension former sand in equipment, practicality and reliability are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic side view of the left upper shaft of FIG. 1;

FIG. 4 is an enlarged schematic view of the purification chamber of FIG. 2;

in the drawings, the reference numbers: 1. a rotating shaft; 2. mixing the leaves; 3. a housing; 4. a motor; 5. a support leg; 6. a feed pipe; 7. a discharge baffle; 8. a crushing hammer; 9. rolling a roller; 10. rolling a cone; 11. a sieve plate; 12. a material returning plate; 13. a gas suction bin; 14. an intercepting net; 15. a first air pipe; 16. a purifying bin; 17. a filter plate; 18. a wind deflector; 19. cleaning the plate; 20. a second air pipe; 21. an air pump; 22. a third air pipe; 23. a shield; 24. a material guide plate; 25. a magnetic column.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

As shown in figures 1 to 4, when the rotor sand mixer for mixing the molding sand for malleable iron casting of the invention works, external raw sand is firstly poured into the left side inside a shell 3 through a feeding pipe 6, three groups of magnetic columns 25 adsorb iron impurities in the raw sand to improve the purity of the raw sand, a motor 4 is turned on, the motor 4 drives a rotating shaft 1, nine groups of mixing blades 2, six groups of crushing hammers 8, a rolling roller 9, a plurality of groups of rolling cones 10, a sieve plate 11 and three groups of return plates 12 to rotate, the six groups of rolling hammers 8 in a rotating state carry out hammering and crushing treatment on the raw sand on the left side inside the shell 3, so that the shape of the raw sand with larger particles is effectively reduced, the raw sand after primary crushing treatment slides rightwards along the inner wall of the shell 3 and enters between the outer wall of the rolling roller 9 and the inner wall of the shell 3, the conical wall on the left side of the rolling roller 9 can carry out diversion crushing treatment on the raw sand, the outer wall of the right side of the rolling roller 9 and the plurality, so as to further reduce the shape of the raw sand, the raw sand after two times of crushing treatment slides rightwards and falls to the left end of the sieve plate 11, the sieve plate 11 carries out screening treatment on the raw sand at the left end of the sieve plate 11, the raw sand meeting the shape regulation can pass through the sieve plate 11 to enter the right side of the sieve plate 11 and is mixed and stirred by the nine groups of mixing blades 2, the raw sand which can not pass through the sieve plate 11 is intercepted at the left side of the sieve plate 11 and is pushed into the space between the outer wall of the rolling roller 9 and the inner wall of the shell 3 again by the three groups of material return plates 12, the rolling roller 9 and the multiple groups of cones 10 in a rotating state carry out repeated rolling and crushing treatment on the raw sand, meanwhile, the sieve plate 11 in a rotating state can carry out rapid screening treatment on the raw sand, the raw sand at the left end of the sieve plate 11 is prevented from blocking the sieve plate 11, the raw sand screened by the sieve plate 11 enters the right, after the raw sand is mixed, molding sand is formed, a discharging baffle 7 is opened, the molding sand is discharged into an external collecting device through a discharging opening and a material guide plate 24, the raw sand can be poured into the device continuously, nine groups of mixing blades 2 can stir and mix the raw sand continuously, meanwhile, the nine groups of mixing blades 2 are installed in an inclined and staggered mode, the nine groups of mixing blades 2 can push the molding sand in the device to reciprocate among the nine groups of mixing blades 2 when rotating, the sand mixer can generate more dust easily when mixing the raw sand, an air pump 21 is opened, the air pump 21 pumps air in a purifying bin 16 through a second air pipe 20, negative pressure is formed inside the purifying bin 16, the purifying bin 16 pumps the dust in the shell 3 through a plurality of groups of first air pipes 15, an air suction bin 13 and an intercepting net 14, the intercepting net 14 intercepts the raw sand in the shell 3, the raw sand is separated from the dust, the dust enters the left side inside the purifying bin 16 and impacts on a wind shield 18, the dust flow velocity reduces, the filter 17 intercepts the filtration processing to the dust that reduces through deep bead 18 in purifying storehouse 16, the dust interception is in the left of filter 17, the air that purifies in the storehouse 16 has been traded filter 17 and has got into the inside right side of purifying storehouse 16 and pass through second trachea 20, air pump 21 and third trachea 22 discharge to the external world, open clearance board 19, the accessible clearance mouth clears up the dust of the inside left side interception in purifying storehouse 16, the convenience is cleared up the absorptive dust of filter 17 left wall simultaneously, improve the gas permeability of filter 17 can.

The main functions realized by the invention are as follows: the raw sand is continuously mixed, so that the equipment can continuously produce the molding sand conveniently, the production speed of the molding sand is effectively increased, the working efficiency is improved, and meanwhile, the mixing degree of the raw sand can be effectively increased and the retention time of the raw sand in the equipment is prolonged by pushing the raw sand to reciprocate for multiple times in the equipment; through the arrangement of six groups of crushing hammers, the rolling roller, the multiple groups of rolling cones and the sieve plate, the raw sand can be conveniently and rapidly crushed in multiple sections, the working pressure of mixing the nine groups of mixed leaves with the raw sand is effectively reduced, the raw sand can be conveniently and fully mixed, and the production quality of molding sand is effectively improved; by arranging the three groups of return plates, raw sand which does not meet the specified requirements can be pushed conveniently, the raw sand can be crushed again conveniently, the accumulation of the raw sand at the left end of the sieve plate is reduced, and the blockage of the sieve plate by the raw sand is prevented; by arranging the air suction bin, the interception net, the plurality of groups of first air pipes, the purification bin, the filter plate, the wind shield, the cleaning plate, the second air pipe, the air pump and the third air pipe, dust generated during the operation of equipment can be conveniently and effectively adsorbed and collected, and the dust is prevented from damaging the environment and human bodies; the motor can be conveniently and effectively protected by arranging the protective cover, and the motor is prevented from being damaged by knocking by external objects; by arranging the material guide plate, the molding sand can be conveniently collected, and is prevented from being scattered to the outside and causing waste; through setting up three magnetic columns of group, can conveniently make the iron debris in the former sand adsorb on three magnetic columns of group, prevent that iron debris from getting into in the equipment and causing destruction to equipment, improve the purity of molding sand simultaneously, improve reliability and practicality.

The rotor sand mixer for mixing the molding sand for malleable iron casting has the advantages that the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the installation mode, the connection mode or the arrangement mode can be implemented as long as the beneficial effects of the rotor sand mixer are achieved; the magnetic column can be purchased in the market.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A rotor sand mixer for mixing malleable cast molding sand is characterized by comprising a rotating shaft (1) and nine groups of mixing blades (2), wherein the inner ends of the nine groups of mixing blades (2) are uniformly obliquely arranged on the outer wall of the rotating shaft (1), the nine groups of mixing blades (2) are installed in a staggered manner, the rotor sand mixer further comprises a shell (3), a motor (4), four groups of supporting legs (5), a feeding pipe (6) and a discharging baffle (7), a first cavity is arranged inside the shell (3), the left end of the first cavity is higher than the right end, the rotating shaft (1) and the nine groups of mixing blades (2) are both positioned in the first cavity, the left end of the rotating shaft (1) is rotatably arranged on the inner wall of the first cavity, the motor (4) is arranged at the right end of the shell (3), the right end of the rotating shaft (1) penetrates through the inner wall of the first cavity and is connected with the left output end of the motor (4), the rotating shaft (1) is, four groups of supporting legs (5) are all arranged on the shell (3), the feeding pipes (6) are arranged on the shell (3) and are communicated with the inside of the first cavity, the lower side of the right end of the first cavity is communicated with a discharge hole, the discharge baffle (7) is covered on the discharge hole, the device also comprises six groups of crushing hammers (8), a rolling roller (9) and a sieve plate (11), the six groups of crushing hammers (8), the rolling roller (9) and the sieve plate (11) are all positioned in the first cavity, the six groups of crushing hammers (8) are uniformly and alternately arranged on the left side of the outer wall of the rotating shaft (1), the rolling roller (9) is arranged on the rotating shaft (1), the outer wall of the left side of the rolling roller (9) is arranged to be a conical wall, the outer wall of the right side of the rolling roller (9) is uniformly provided with a plurality of rolling cones (10), the sieve plate (11) is positioned between the rolling roller (9), the outer wall of the sieve plate (11) is in slidable contact with the inner wall of the first cavity.

2. The rotor mixer for molding sand by malleable cast according to claim 1, further comprising three sets of return plates (12), wherein the three sets of return plates (12) are installed in the left end outer side of the sieve plate (11) with uniform inclination, and the three sets of return plates (12) are all separated from the rolling roller (9).

3. The rotor sand mixer for mixing malleable cast molding sand according to claim 2, further comprising an air suction chamber (13), a catch net (14), a purification chamber (16), a filter plate (17), a wind shield (18), a cleaning plate (19), a second air pipe (20), an air pump (21) and a third air pipe (22), wherein the air suction chamber (13) is installed on the housing (3) along a transverse line, the bottom end of the air suction chamber (13) is transversely communicated with an air suction groove, the bottom end of the air suction groove is communicated with the inside of the first cavity, the catch net (14) is installed on the inner wall of the lower side of the air suction groove, the top end of the air suction chamber (13) is transversely and uniformly provided with a plurality of groups of first air pipes (15), the bottom ends of the plurality of groups of first air pipes (15) are all communicated with the inside of the air suction groove, the purification chamber (16) is installed on the air suction chamber (13), the inside of the purification chamber (16, the output of the first trachea of multiunit (15) all communicates with the inside of second cavity, filter (17) are vertical to be installed in second cavity inner wall right side, deep bead (18) are located the left of filter (17), deep bead (18) are installed on second cavity inner wall, the left end of deep bead (18) corresponds with the output position of the first trachea of multiunit (15), second cavity top intercommunication is provided with the clearance mouth, clearance board (19) lid dress is on the clearance mouth, air pump (21) are located the right-hand of purifying storehouse (16), install on inhaling air storehouse (13) air pump (21), the second cavity communicates each other through second trachea (20) with air pump (21), install on air pump (21) third trachea (22).

4. A rotor mixer for malleable cast sand mixing, as claimed in claim 3, characterised by comprising a shield (23), the shield (23) being located outside the motor (4), the shield (23) being mounted on the housing (3).

5. The rotor sand mixer for malleable steel foundry sand mixing as claimed in claim 4, further comprising a guide plate (24), wherein the guide plate (24) is installed on the housing (3), the top end of the guide plate (24) is provided with a guide chute in a lateral communication, and the left end of the guide chute is communicated with the outside of the right end of the discharge opening.

6. The rotor mixer for molding sand for malleable steel foundry, according to claim 5, characterized by the fact that the left upper part of the inner wall of the feeding pipe (6) is uniformly provided with three sets of magnetic columns (25).