CN111774525A - Molding sand automatic feeding and screening device for casting and using method - Google Patents
Molding sand automatic feeding and screening device for casting and using method Download PDFInfo
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- CN111774525A CN111774525A CN202010770635.5A CN202010770635A CN111774525A CN 111774525 A CN111774525 A CN 111774525A CN 202010770635 A CN202010770635 A CN 202010770635A CN 111774525 A CN111774525 A CN 111774525A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
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Abstract
The invention discloses an automatic feeding and screening device for molding sand for casting and a using method, belonging to the technical field of casting, and comprising a screening bin and a screw feeder, wherein the top of the screening bin is provided with a grinding cylinder, the inside of the screening bin is fixedly provided with a screen, the bottom of the screening bin is fixedly provided with a vibrating motor, one end of the screening bin is provided with a first discharging pipe, one side of the grinding cylinder is fixedly provided with a fixed plate, the fixed plate is provided with a speed reducing motor and a first bearing seat, the first bearing seat is movably provided with a first movable shaft, the top of the first movable shaft is provided with a first synchronizing wheel, the top of the grinding cylinder is provided with a top plate, the middle part of the top plate is provided with a second bearing seat, and the second bearing seat is movably provided with a second movable shaft; the invention can crush the caking molding sand, thereby avoiding the occurrence of the situation that the caking molding sand falls into the coarse slag bin, reducing the waste of the molding sand and lowering the casting cost.
Description
Technical Field
The invention belongs to the technical field of casting, and particularly relates to an automatic feeding and screening device for molding sand for casting and a using method.
Background
Casting is a relatively early metal hot working process mastered by human, and has a history of about six thousand years, the casting is a method for casting liquid metal into a casting cavity matched with a part in shape and obtaining the part or a blank after the liquid metal is cooled and solidified, most of cast substances are metal which is originally in a solid state and is heated to a liquid state, the material of a casting mold can be sand, metal or even ceramic, the use method can be different according to different requirements, the molding sand is an extremely important casting mold material in the casting industry, the molding sand can be divided into facing sand, filling sand, single sand and the like, the facing sand is a layer of molding sand tightly attached to the casting, and the quality requirement is high; the filled sand is not contacted with molten metal after being arranged on the surface sand layer, and the quality requirement is not strict; the single sand is molding sand without surface sand and back sand, and is mainly used for machine molding; in addition, the sand mold of the large casting is usually dried and then poured, and the used molding sand contains more clay, which is called dry mold sand; the molding sand used by the wet-type pouring method is less in clay content and is called wet-type sand.
At present, the molding sand used for casting is realized by adopting a screw rod feeding machine, and the molding sand can be screened before feeding, but because the molding sand has the condition of caking, the caking part of the molding sand can not pass through the screen when screening, and the waste of the molding sand is caused.
Disclosure of Invention
The invention aims to provide an automatic feeding and screening device for molding sand for casting and a using method thereof, and solves the problems that molding sand for casting is screened by a screw feeder before feeding, but the caking part of the molding sand cannot pass through a screen during screening due to caking of the molding sand, and the molding sand is wasted.
In order to achieve the purpose, the invention provides the following technical scheme: the automatic feeding and screening device for the molding sand for casting comprises a screening bin and a screw feeder, wherein a grinding cylinder is arranged at the top of the screening bin, a screen is fixedly arranged inside the screening bin and used for filtering impurities in the molding sand, the purity of the molding sand is improved, and the quality of a product can be improved, a vibrating motor is fixedly arranged at the bottom of the screening bin and can drive the screening bin and the screen to vibrate, the inclination angles of the screening bin and the screen are matched, so that the molding sand falling on the screen can rapidly pass through the screen, the impurity part in the molding sand can rapidly roll down to the inside of a coarse slag bin, the screening efficiency of the molding sand is improved, a first discharging pipe is arranged at one end of the screening bin and used for discharging the crushed molding sand, and the first discharging pipe is positioned right above the feed hopper of the screw feeder, the grinding cylinder is provided with a supporting unit for supporting the grinding cylinder, one end of the screening bin is provided with a waste collecting unit, one side of the grinding cylinder is fixedly provided with a fixed plate, the fixed plate is used for installing a speed reducing motor and a first bearing seat, the speed reducing motor and the first bearing seat are installed on the fixed plate, the speed reducing motor can convert electric energy into mechanical energy to drive a first movable shaft to rotate, the first movable shaft can reduce friction force generated when the first movable shaft rotates, a first movable shaft is movably installed on the first bearing seat, the bottom of the first movable shaft is fixedly connected with an output shaft of the speed reducing motor, a first synchronizing wheel is installed at the top of the first movable shaft, a top plate is installed at the top of the grinding cylinder and used for installing a second bearing seat, a second bearing seat is installed in the middle of the top plate, and the second bearing seat can reduce friction force generated when the second movable shaft rotates, a second movable shaft is movably arranged on the second bearing seat, a second synchronizing wheel is arranged at the top of the second movable shaft, a synchronous belt is connected between the first synchronous wheel and the second synchronous wheel in a transmission way, the first synchronous wheel is matched with the second synchronous wheel and the synchronous belt and can transmit kinetic energy to the second movable shaft, thereby driving the grinding block to rotate and realizing the grinding and crushing of the molding sand, the other side of the grinding cylinder is provided with a feed inlet which is used for throwing the molding sand into the grinding cylinder, and the grinding block is arranged in the grinding cylinder and is fixedly arranged on the second movable shaft, a second discharging pipe is fixed at the bottom of the grinding cylinder and used for discharging the crushed molding sand, the bottom of the second movable shaft is provided with a stabilizing unit that is assembled to improve the stability of the second movable shaft.
Adopt above-mentioned scheme, through setting up the grinding vessel, the inside grinding piece of cooperation can be smashed the molding sand of caking to avoided cubic molding sand to roll the condition emergence of falling coarse sediment storehouse inside, reduced the waste of molding sand, reduced cast cost.
In the above scheme, it should be noted that the screw feeder, the vibration motor and the reduction motor are all electrically connected with an external power supply.
As a preferred embodiment, a feeding pipe is arranged at one end of a conveying pipe of the screw feeder, a first flange is fixed at one end of the conveying pipe of the screw feeder, a second flange is fixed at one end of the feeding pipe, two fourth bearing seats are fixedly arranged at the other end of the feeding pipe, the fourth bearing seats are used for reducing the friction force of the second screw rod during rotation, a second screw rod is arranged inside the feeding pipe and matched with the inner wall of the feeding pipe to convey molding sand, one end of the second screw rod is movably arranged inside the feeding pipe through the fourth bearing seats, a third discharging pipe is fixed at the bottom of one end of the feeding pipe and used for discharging the molding sand inside the feeding pipe, a plurality of hexagon bolts are arranged on the second flange, a plurality of hexagon nuts are arranged on the first flange, hexagon bolt runs through first ring flange and second ring flange, hexagon nut screw cup joints on hexagon bolt, and hexagon nut and hexagon bolt's setting has made things convenient for the split of first ring flange and second ring flange or is connected fixedly, be provided with the sealing washer between first ring flange and the second ring flange, the pay-off hob end fixing of screw rod material loading machine has the fixed block, and the one end of fixed block has seted up the hexagonal groove, the other end of second hob is fixed with the hexagonal piece, and hexagonal piece and hexagonal groove be the phase-match setting, and hexagonal piece cooperation hexagonal groove has realized the linkage of second hob and screw rod material loading machine pay-off hob.
By adopting the scheme, the first flange plate and the second flange plate are arranged, and the hexagon nut and the hexagon bolt are matched, so that people can detach the feeding pipe when the screw feeding machine is not used, the space occupied by the screw feeding machine is greatly reduced, and the screw feeding machine is convenient to store.
As a preferred embodiment, the supporting unit includes a supporting plate and four first supporting legs, four first supporting legs are respectively installed at four corners of the supporting plate, the grinding cylinder is fixedly installed on the supporting plate, the grinding cylinder is located right above the screen, and a connecting unit is arranged between the screening bin and the first supporting legs.
Adopt above-mentioned scheme, through setting up the backup pad, can install the grinding vessel directly over the screen cloth for the discharged molding sand of second discharging pipe can perfectly fall on the screen cloth.
As a preferred embodiment, the connecting unit includes first mounting panel, second mounting panel and a plurality of expanding spring, first mounting panel fixed mounting is on screening storehouse, second mounting panel fixed mounting is on first supporting leg, and is a plurality of expanding spring is located between first mounting panel and the second mounting panel, expanding spring's both ends difference fixed mounting is on first mounting panel and second mounting panel.
Adopt above-mentioned scheme, through the expanding spring who sets up, can cushion vibrating motor's vibrations, effectively avoided first supporting leg to follow the condition emergence that the screening storehouse vibrates together.
As a preferred embodiment, the useless unit of collection includes coarse slag storehouse and adjustable fender, the notch has been seted up at the one end top in screening storehouse, and the notch makes the inside that enters into coarse slag storehouse that impurity can be smooth, the rectangle mouth has been seted up to the one end in coarse slag storehouse, adjustable fender is located one side of rectangle mouth, and hinge and coarse slag storehouse swing joint are passed through to adjustable fender's top, the permanent magnetism steel bloom is installed to the bottom in coarse slag storehouse, adjustable fender's bottom magnetism is inhaled and is connected on the permanent magnetism steel bloom.
Adopt above-mentioned scheme, through setting up the coarse residue storehouse, can collect the impurity in the molding sand, avoided impurity to pile up the condition emergence at the screen cloth minimum, also made things convenient for simultaneously cleaing away of impurity, its specific process of cleaing away is as follows: the permanent magnet steel blocks and the movable baffle plate which are connected together are magnetically attracted in a separating mode, a rectangular opening is exposed, and at the moment, impurities collected in the coarse slag bin can be slowly discharged through the rectangular opening under the action of the vibrating motor.
As a preferred embodiment, both sides all are provided with the second supporting leg around the conveying pipe, and the second supporting leg is used for supporting the conveying pipe, and the top embedding of second supporting leg installs fifth bearing, both sides all are fixed with the fixed axle around the conveying pipe, the setting of fixed axle and fifth bearing for people can fold the second supporting leg and accomodate, be about for the second supporting leg rotation as for the position that the conveying pipe is parallel to each other, have made things convenient for depositing of conveying pipe, and the fixed axle passes through fifth bearing and second supporting leg swing joint, the bottom welding of second supporting leg has the callus on the sole board, and the callus on the sole board has increased the area of contact of second supporting leg and ground, thereby has improved the stability of conveying pipe.
As a preferred embodiment, the stabilizing unit includes a third bearing seat and four risers, four of the risers are all fixedly mounted on the third bearing seat, four of the risers are all fixed on the inner surface of the grinding drum, the second movable shaft is movably mounted on the third bearing seat, and a discharging unit is arranged at the bottom of the third bearing seat.
By adopting the scheme, the four vertical plates are utilized to support the third bearing seat, and the third bearing seat is utilized to limit the position of the second movable shaft, so that the stability of the second movable shaft in the rotating process is obviously improved.
As a preferred embodiment, the discharging unit includes a first screw rod and a coupling, the top of the first screw rod is fixedly connected to the bottom of the second movable shaft through the coupling, and the bottom of the first screw rod extends into the second discharging pipe.
Adopt above-mentioned scheme, through installing first hob, effectively avoided the molding sand to block up the condition emergence of second discharging pipe, under the effect of first hob, the molding sand can be slowly and even through the second discharging pipe.
A using method of an automatic feeding and screening device for molding sand for casting comprises the following steps,
s1, before use, starting a vibration motor and a speed reducing motor, wherein the vibration motor drives the screening bin and the screen to vibrate, and the speed reducing motor drives the grinding block to rotate in the grinding cylinder;
s2, casting sand into the grinding cylinder through the feed inlet, wherein the rotary grinding block is matched with the inner wall of the grinding cylinder to grind the molding sand, the agglomerated molding sand is crushed, and the crushed molding sand is slowly discharged through the second discharge pipe under the action of the first spiral rod;
s3, the molding sand discharged through the second discharging pipe falls on the vibrating screen mesh in the step S2, the inclined screen mesh screens the molding sand under the vibration effect, the qualified molding sand passes through the screen mesh and falls into the interior of the screening bin, and then is discharged into a feeding hopper of the screw feeding machine through the first discharging pipe, and large-volume impurities in the molding sand can roll down into the interior of the coarse slag bin through the notch;
s4, wait in step S3 when the inside molding sand volume of screw rod material loading machine feeder hopper account for the volumetric more than half of screw rod material loading machine feeder hopper, start the screw rod material loading machine, it is rotatory to drive the second hob, carries the inside molding sand of screw rod material loading machine feeder hopper to the inside of conveying pipe, discharges by the third discharging pipe at last, realizes the material loading of molding sand.
According to the automatic feeding and screening device for the molding sand for casting and the using method, the grinding cylinder, the speed reduction motor and the grinding block are arranged, and the caking molding sand can be crushed, so that the condition that the massive molding sand falls into the coarse slag bin is avoided, the waste of the molding sand is reduced, and the casting cost is reduced;
according to the molding sand automatic feeding screening device for casting and the using method, the feeding pipe, the second supporting leg, the first flange plate, the second flange plate, the fourth bearing seat, the second screw rod, the third discharging pipe, the hexagon bolt, the hexagon nut, the sealing ring, the fixing block, the hexagon groove and the hexagon block are arranged, so that the feeding part of the screw feeding machine is detached, the storage of the screw feeding machine is facilitated, the feeding pipe is simple to disassemble and assemble, and the practicability is high;
according to the automatic feeding and screening device for the molding sand for casting and the using method, the stability of the second movable shaft in the rotating process is improved and the abrasion of the whole device is reduced by arranging the stabilizing unit;
according to the automatic feeding and screening device for the molding sand for casting and the using method, the discharging unit is arranged, the molding sand can slowly and uniformly pass through the second discharging pipe under the action of the first spiral rod, and the situation that the second discharging pipe is blocked by the molding sand is effectively avoided;
drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a grinding cylinder of the present invention;
FIG. 3 is a top view of a third bearing housing of the present invention;
FIG. 4 is a front view of a screening cartridge of the present invention;
FIG. 5 is a cross-sectional view of the coarse slag bin of the present invention;
FIG. 6 is a block diagram of the feed tube of the present invention;
FIG. 7 is an enlarged sectional view taken at A of FIG. 6 in accordance with the present invention;
FIG. 8 is a cross-sectional view of a feeding tube of the present invention.
In the figure: 1. a screening bin; 2. a grinding cylinder; 3. a screw rod feeding machine; 4. screening a screen; 5. a vibration motor; 6. a first discharge pipe; 7. a fixing plate; 8. a reduction motor; 9. a first bearing housing; 10. a first movable shaft; 11. a first synchronizing wheel; 12. a top plate; 13. a second bearing housing; 14. a second movable shaft; 15. a second synchronizing wheel; 16. a synchronous belt; 17. a feed inlet; 18. grinding blocks; 19. a vertical plate; 20. a third bearing seat; 21. a second discharge pipe; 22. a support plate; 23. a first support leg; 24. a first mounting plate; 25. a second mounting plate; 26. a tension spring; 27. a coarse slag bin; 28. a notch; 29. a rectangular opening; 30. a movable baffle; 31. a hinge; 32. permanent magnet steel blocks; 33. a first screw rod; 34. a coupling; 35. a feed pipe; 36. a second support leg; 37. a first flange plate; 38. a second flange plate; 39. a fourth bearing seat; 40. a second screw rod; 41. a third discharge pipe; 42. a hexagon bolt; 43. a hexagonal nut; 44. a seal ring; 45. a fixed block; 46. a hexagonal groove; 47. a hexagonal block; 48. a fixed shaft; 49. a fifth bearing seat; 50. a footplate.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.
Referring to fig. 1-8, the invention provides an automatic feeding and screening device for molding sand for casting and a using method thereof, comprising a screening bin 1 and a screw feeder 3, wherein a grinding cylinder 2 is arranged at the top of the screening bin 1, a screen 4 is fixedly arranged inside the screening bin 1, the screen 4 is used for filtering impurities in the molding sand and improving the purity of the molding sand, so that the quality of a product can be improved, a vibrating motor 5 is fixedly arranged at the bottom of the screening bin 1, the vibrating motor 5 can drive the screening bin 1 and the screen 4 to vibrate, and the molding sand falling on the screen 4 can rapidly pass through the screen 4 by matching with the inclination angle of the screening bin 1 and the screen 4, while the impurities in the molding sand can rapidly fall into a coarse slag bin 27, so that the screening efficiency of the molding sand is improved, a first discharging pipe 6 is arranged at one end of the screening bin 1, and the first discharging pipe 6 is used for discharging the crushed molding sand, the first discharge pipe 6 is positioned right above a feed hopper of the screw feeder 3, a support unit for supporting the grinding cylinder 2 is arranged on the grinding cylinder 2, a waste collecting unit is arranged at one end of the screening bin 1, a fixed plate 7 is fixedly arranged at one side of the grinding cylinder 2, the fixed plate 7 is used for mounting a speed reducing motor 8 and a first bearing seat 9, the fixed plate 7 is provided with the speed reducing motor 8 and the first bearing seat 9, the speed reducing motor 8 can convert electric energy into mechanical energy to drive a first movable shaft 10 to rotate, the first bearing seat 9 can reduce friction force generated when the first movable shaft 10 rotates, the first movable shaft 10 is movably mounted on the first bearing seat 9, the bottom of the first movable shaft 10 is fixedly connected with an output shaft of the speed reducing motor 8, a first synchronous wheel 11 is mounted at the top of the first movable shaft 10, a top plate 12 is mounted at the top of the grinding cylinder 2, and the top plate 12 is used for, a second bearing seat 13 is arranged in the middle of the top plate 12, the second bearing seat 13 can reduce the friction force when the second movable shaft 14 rotates, the second movable shaft 14 is movably arranged on the second bearing seat 13, a second synchronous wheel 15 is arranged at the top of the second movable shaft 14, a synchronous belt 16 is connected between the first synchronous wheel 11 and the second synchronous wheel 15 in a transmission way, the first synchronous wheel 11 is matched with the second synchronous wheel 15 and the synchronous belt 16 and can transmit kinetic energy to the second movable shaft 14, so that a grinding block 18 can be driven to rotate, grinding and crushing of molding sand are realized, a feeding hole 17 is arranged on the other side of the grinding cylinder 2, the feeding hole 17 is used for feeding the molding sand into the grinding cylinder 2, a grinding block 18 is arranged in the grinding cylinder 2, the grinding block 18 is fixedly arranged on the second movable shaft 14, a second discharging pipe 21 is fixed at the bottom of the grinding cylinder 2, and the second discharging pipe 21 is used for discharging the crushed molding sand, the bottom of the second movable shaft 14 is provided with a stabilizing unit, which is assembled to improve the stability of the second movable shaft 14; through setting up grinding vessel 2, its inside grinding piece 18 of cooperation can be smashed the molding sand of caking to avoided cubic molding sand to roll the inside condition emergence of coarse sediment storehouse 27, reduced the waste of molding sand, reduced cast cost.
A feeding pipe 35 is arranged at one end of a feeding pipe of the screw feeder 3, a first flange 37 is fixed at one end of the feeding pipe of the screw feeder 3, a second flange 38 is fixed at one end of the feeding pipe 35, two fourth bearing seats 39 are fixedly arranged at the other end of the feeding pipe 35, the fourth bearing seats 39 are used for reducing the friction force of a second screw rod 40 during rotation, a second screw rod 40 is arranged inside the feeding pipe 35, the second screw rod 40 is matched with the inner wall of the feeding pipe 35 and can convey molding sand, one end of the second screw rod 40 is movably arranged inside the feeding pipe 35 through a fourth bearing seat 39, a third discharging pipe 41 is fixed at the bottom of one end of the feeding pipe 35, the third discharging pipe 41 is used for discharging the molding sand inside the feeding pipe 35, a plurality of hexagon bolts 42 are arranged on the second flange 38, a plurality of hexagon nuts 43 are arranged on the first flange 37, the hexagon bolts 42 penetrate through the first flange 37 and the second flange 38, the hexagon nut 43 is sleeved on the hexagon bolt 42 in a threaded manner, the hexagon nut 43 and the hexagon bolt 42 are arranged, so that the first flange plate 37 and the second flange plate 38 can be conveniently detached or fixedly connected, a sealing ring 44 is arranged between the first flange plate 37 and the second flange plate 38, a fixing block 45 is fixed at the end part of a feeding screw rod of the screw feeder 3, a hexagonal groove 46 is formed in one end of the fixing block 45, a hexagonal block 47 is fixed at the other end of the second screw rod 40, the hexagonal block 47 and the hexagonal groove 46 are arranged in a matched manner, and the hexagonal block 47 is matched with the hexagonal groove 46, so that the linkage of the feeding screw rod of the screw feeder 3 and the second screw rod 40 is realized; through setting up first ring flange 37 and second ring flange 38, cooperation hexagon nut 43 and hex bolts 42 for people can pull down conveying pipe 35 when not using screw rod material loading machine 3, thereby has reduced the space that screw rod material loading machine 3 occupy greatly, has made things convenient for depositing of screw rod material loading machine 3.
The supporting unit comprises a supporting plate 22 and four first supporting legs 23, the four first supporting legs 23 are respectively installed at four corners of the supporting plate 22, the grinding cylinder 2 is fixedly installed on the supporting plate 22, the grinding cylinder 2 is located right above the screen 4, and a connecting unit is arranged between the screening bin 1 and the first supporting legs 23; through setting up backup pad 22, can install grinding vessel 2 directly over screen cloth 4 for the discharged molding sand of second discharging pipe 21 can perfectly fall on screen cloth 4.
The connecting unit comprises a first mounting plate 24, a second mounting plate 25 and a plurality of telescopic springs 26, the first mounting plate 24 is fixedly mounted on the screening bin 1, the second mounting plate 25 is fixedly mounted on the first supporting leg 23, the plurality of telescopic springs 26 are positioned between the first mounting plate 24 and the second mounting plate 25, and two ends of each telescopic spring 26 are fixedly mounted on the first mounting plate 24 and the second mounting plate 25 respectively; through the telescopic spring 26 who sets up, can cushion vibrating motor 5's vibrations, effectively avoided first supporting leg 23 to follow the condition emergence that screening storehouse 1 is together vibrated.
The waste collecting unit comprises a coarse slag bin 27 and a movable baffle 30, a notch 28 is formed in the top of one end of the screening bin 1, impurities can smoothly enter the coarse slag bin 27 through the notch 28, a rectangular opening 29 is formed in one end of the coarse slag bin 27, the movable baffle 30 is located on one side of the rectangular opening 29, the top of the movable baffle 30 is movably connected with the coarse slag bin 27 through a hinge 31, a permanent magnet steel block 32 is installed at the bottom of the coarse slag bin 27, and the bottom of the movable baffle 30 is magnetically connected to the permanent magnet steel block 32; through setting up coarse slag storehouse 27, can collect the impurity in the molding sand, avoid impurity to pile up the condition emergence at the screen cloth 4 minimum, also made things convenient for simultaneously cleaing away of impurity, its specific process of cleaing away is as follows: the permanent magnet steel blocks 32 and the movable baffle 30 which are connected together are separated and magnetically attracted to expose the rectangular opening 29, and at the moment, impurities collected in the coarse slag bin 27 can be slowly discharged through the rectangular opening 29 under the action of the vibration motor 5.
All be provided with second supporting leg 36 around conveying pipe 35, second supporting leg 36 is used for supporting conveying pipe 35, and fifth bearing 49 is installed in the top embedding of second supporting leg 36, both sides all are fixed with fixed axle 48 around conveying pipe 35, the setting of fixed axle 48 and fifth bearing 49, make people fold to accomodate second supporting leg 36, be about for second supporting leg 36 rotatory as to the position that conveying pipe 35 is parallel to each other, the depositing of conveying pipe 35 has been made things convenient for, and fixed axle 48 passes through fifth bearing 49 and second supporting leg 36 swing joint, the welding of the bottom of second supporting leg 36 has foot plate 50, foot plate 50 has increased the area of contact of second supporting leg 36 with ground, thereby the stability of conveying pipe 35 has been improved.
The stabilizing unit comprises a third bearing seat 20 and four vertical plates 19, one ends of the four vertical plates 19 are fixedly arranged on the third bearing seat 20, the other ends of the four vertical plates 19 are fixedly arranged on the inner surface of the grinding cylinder 2, the second movable shaft 14 is movably arranged on the third bearing seat 20, and a discharging unit is arranged at the bottom of the third bearing seat 20; the use of the four risers 19 to support the third bearing seat 20 and the use of the third bearing seat 20 to define the position of the second movable shaft 14 significantly improves the stability of the second movable shaft 14 during rotation.
The discharging unit comprises a first spiral rod 33 and a coupling 34, the top of the first spiral rod 33 is fixedly connected to the bottom of the second movable shaft 14 through the coupling 34, and the bottom of the first spiral rod 33 extends into the second discharging pipe 21; through the first hob 33 of installation, the condition of effectively having avoided the molding sand to block up second discharging pipe 21 takes place, and under the effect of first hob 33, the molding sand can be slowly and evenly through second discharging pipe 21.
A using method of an automatic feeding and screening device for molding sand for casting comprises the following steps,
s1, before use, the vibration motor 5 and the speed reducing motor 8 are started, the vibration motor 5 drives the screening bin 1 and the screen 4 to vibrate, and the speed reducing motor 8 drives the grinding block 18 to rotate in the grinding cylinder 2;
s2, casting sand is fed into the grinding cylinder 2 through the feed inlet 17, the rotary grinding block 18 is matched with the inner wall of the grinding cylinder 2 to grind the casting sand, the agglomerated casting sand is crushed, and the crushed casting sand is slowly discharged through the second discharge pipe 21 under the action of the first screw rod 33;
s3, the molding sand discharged through the second discharging pipe 21 in the step S2 falls on the vibrating screen 4, the inclined screen 4 screens the molding sand under the vibration effect, the qualified molding sand passes through the screen 4 and falls into the screening bin 1, and then is discharged into the feeding hopper of the screw feeder 3 through the first discharging pipe 6, and large-volume impurities in the molding sand roll to the inside of the coarse slag bin 27 through the notch 28;
s4, when the molding sand volume inside the feed hopper of the screw feeder 3 in the step S3 occupies more than half of the volume of the feed hopper of the screw feeder 3, the screw feeder 3 is started to drive the second screw rod 40 to rotate, the molding sand inside the feed hopper of the screw feeder 3 is conveyed to the inside of the feed pipe 35, and finally the molding sand is discharged through the third discharge pipe 41, so that the molding sand is fed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a foundry sand automatic feeding sieving mechanism for casting, includes screening storehouse (1) and screw rod material loading machine (3), its characterized in that: the grinding cylinder (2) is arranged at the top of the screening bin (1), the screen (4) is fixedly arranged inside the screening bin (1), the vibrating motor (5) is fixedly arranged at the bottom of the screening bin (1), a first discharging pipe (6) is arranged at one end of the screening bin (1), the first discharging pipe (6) is located right above a feed hopper of the screw feeder (3), a supporting unit for supporting the grinding cylinder (2) is arranged on the grinding cylinder (2), and a waste collecting unit is arranged at one end of the screening bin (1);
one side of the grinding cylinder (2) is fixedly provided with a fixing plate (7), the fixing plate (7) is provided with a speed reducing motor (8) and a first bearing seat (9), the first bearing seat (9) is provided with a first movable shaft (10), the bottom of the first movable shaft (10) is fixedly connected with an output shaft of the speed reducing motor (8), the top of the first movable shaft (10) is provided with a first synchronizing wheel (11), the top of the grinding cylinder (2) is provided with a top plate (12), the middle part of the top plate (12) is provided with a second bearing seat (13), the second bearing seat (13) is provided with a second movable shaft (14), the top of the second movable shaft (14) is provided with a second synchronizing wheel (15), a synchronous belt (16) is connected between the first synchronizing wheel (11) and the second synchronizing wheel (15) in a transmission manner, and the other side of the grinding cylinder (2) is provided with a feed inlet (17), and the inside of grinding vessel (2) is provided with grinding block (18), grinding block (18) fixed mounting is on second loose axle (14), the bottom of grinding vessel (2) is fixed with second discharging pipe (21), the bottom of second loose axle (14) is provided with stable unit, stable unit is assembled for the stability that is used for improving second loose axle (14).
2. The molding sand automatic feeding screening device for casting of claim 1, characterized in that: a feeding pipe (35) is arranged at one end of a conveying pipe of the screw feeding machine (3), a first flange plate (37) is fixed at one end of the conveying pipe of the screw feeding machine (3), a second flange plate (38) is fixed at one end of the feeding pipe (35), two fourth bearing seats (39) are fixedly arranged at the other end of the feeding pipe (35), a second screw rod (40) is arranged inside the feeding pipe (35), one end of the second screw rod (40) is movably arranged inside the feeding pipe (35) through the fourth bearing seats (39), a third discharging pipe (41) is fixed at the bottom of one end of the feeding pipe (35), a plurality of hexagon bolts (42) are arranged on the second flange plate (38), a plurality of hexagon nuts (43) are arranged on the first flange plate (37), and the hexagon bolts (42) penetrate through the first flange plate (37) and the second flange plate (38), hexagon nut (43) screw sleeve joint is on hex bolts (42), be provided with between first ring flange (37) and second ring flange (38) sealing washer (44), the pay-off hob end fixing of screw rod material loading machine (3) has fixed block (45), and the one end of fixed block (45) has seted up hexagonal groove (46), the other end of second hob (40) is fixed with hexagonal piece (47), and hexagonal piece (47) and hexagonal groove (46) set up for the phase-match.
3. The molding sand automatic feeding screening device for casting of claim 1, characterized in that: the supporting unit includes backup pad (22) and four first supporting legs (23), four the four corners in backup pad (22) are installed respectively in first supporting leg (23), grinding vessel (2) fixed mounting is on backup pad (22), and grinding vessel (2) are located screen cloth (4) directly over, be provided with the linkage unit between screening storehouse (1) and first supporting leg (23).
4. The molding sand automatic feeding screening device for casting of claim 3, characterized in that: the coupling unit includes first mounting panel (24), second mounting panel (25) and a plurality of expanding spring (26), first mounting panel (24) fixed mounting is on screening storehouse (1), second mounting panel (25) fixed mounting is on first supporting leg (23), and is a plurality of expanding spring (26) are located between first mounting panel (24) and second mounting panel (25), the both ends difference fixed mounting of expanding spring (26) is on first mounting panel (24) and second mounting panel (25).
5. The molding sand automatic feeding screening device for casting of claim 1, characterized in that: collect useless unit and include coarse slag storehouse (27) and adjustable fender (30), notch (28) have been seted up at the one end top in screening storehouse (1), rectangle mouth (29) have been seted up to the one end in coarse slag storehouse (27), adjustable fender (30) are located one side of rectangle mouth (29), and hinge (31) and coarse slag storehouse (27) swing joint are passed through to the top of adjustable fender (30), permanent magnet steel block (32) are installed to the bottom in coarse slag storehouse (27), the connection is inhaled on permanent magnet steel block (32) to the bottom magnetism of adjustable fender (30).
6. The molding sand automatic feeding screening device for casting of claim 2, characterized in that: the front side and the rear side of the feeding pipe (35) are provided with second supporting legs (36), a fifth bearing seat (49) is embedded in the top of each second supporting leg (36), fixing shafts (48) are fixed to the front side and the rear side of the feeding pipe (35), the fixing shafts (48) are movably connected with the second supporting legs (36) through the fifth bearing seats (49), and foot pads (50) are welded at the bottoms of the second supporting legs (36).
7. The molding sand automatic feeding screening device for casting of claim 1, characterized in that: the stabilizing unit comprises a third bearing seat (20) and four vertical plates (19), four, wherein one ends of the vertical plates (19) are fixedly arranged on the third bearing seat (20) respectively, four other ends of the vertical plates (19) are fixedly arranged on the inner surface of the grinding cylinder (2), a second movable shaft (14) is movably arranged on the third bearing seat (20), and a discharging unit is arranged at the bottom of the third bearing seat (20).
8. The molding sand automatic feeding screening device for casting of claim 7, characterized in that: the discharging unit comprises a first spiral rod (33) and a coupling (34), the top of the first spiral rod (33) is fixedly connected to the bottom of the second movable shaft (14) through the coupling (34), and the bottom of the first spiral rod (33) extends into the second discharging pipe (21).
9. The use method of the molding sand automatic feeding and screening device for the casting as claimed in claims 1-8 is characterized in that: comprises the following steps of (a) carrying out,
s1, before use, the vibration motor (5) and the speed reducing motor (8) are started, the vibration motor (5) drives the screening bin (1) and the screen (4) to vibrate, and the speed reducing motor (8) drives the grinding block (18) to rotate in the grinding cylinder (2);
s2, casting sand into the grinding cylinder (2) through the feed inlet (17), matching the inner wall of the grinding cylinder (2) by the rotary grinding block (18), grinding the sand, crushing the agglomerated sand, and slowly discharging the crushed sand through the second discharge pipe (21) under the action of the first screw rod (33);
s3, the molding sand discharged through the second discharging pipe (21) in the step S2 falls on the vibrating screen (4), the inclined screen (4) screens the molding sand under the vibration effect, the qualified molding sand passes through the screen (4) and falls into the screening bin (1), then the molding sand is discharged into a feed hopper of the screw feeding machine (3) through the first discharging pipe (6), and large-volume impurities in the molding sand can roll into the coarse slag bin (27) through the notch (28);
s4, when the molding sand volume inside the feed hopper of the screw feeder (3) in the step S3 occupies more than half of the volume of the feed hopper of the screw feeder (3), the screw feeder (3) is started to drive the second screw rod (40) to rotate, the molding sand inside the feed hopper of the screw feeder (3) is conveyed to the inside of the feeding pipe (35), and finally the molding sand is discharged through the third discharge pipe (41), so that the molding sand is fed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770635.5A CN111774525A (en) | 2020-08-04 | 2020-08-04 | Molding sand automatic feeding and screening device for casting and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770635.5A CN111774525A (en) | 2020-08-04 | 2020-08-04 | Molding sand automatic feeding and screening device for casting and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111774525A true CN111774525A (en) | 2020-10-16 |
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ID=72766669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010770635.5A Withdrawn CN111774525A (en) | 2020-08-04 | 2020-08-04 | Molding sand automatic feeding and screening device for casting and using method |
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| Country | Link |
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| CN (1) | CN111774525A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872290A (en) * | 2021-02-23 | 2021-06-01 | 云南师范大学 | Recovery unit of environmental protection molding sand |
| CN113600744A (en) * | 2021-07-08 | 2021-11-05 | 安徽省含山县林头郑孙铸造厂 | Back sand conveying and feeding device for casting |
| CN114082883A (en) * | 2021-11-16 | 2022-02-25 | 马鞍山市博立普精密机械有限公司 | Molding sand treatment vibration device with auxiliary lifting assembly and method |
| CN114147171A (en) * | 2022-02-07 | 2022-03-08 | 龙口市和义机械配件有限公司 | Molding sand reducing mechanism is used in brake disc casting |
| CN117564217A (en) * | 2023-11-21 | 2024-02-20 | 浙江海帆阀业有限公司 | Valve body casting equipment capable of automatically screening |
-
2020
- 2020-08-04 CN CN202010770635.5A patent/CN111774525A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872290A (en) * | 2021-02-23 | 2021-06-01 | 云南师范大学 | Recovery unit of environmental protection molding sand |
| CN113600744A (en) * | 2021-07-08 | 2021-11-05 | 安徽省含山县林头郑孙铸造厂 | Back sand conveying and feeding device for casting |
| CN114082883A (en) * | 2021-11-16 | 2022-02-25 | 马鞍山市博立普精密机械有限公司 | Molding sand treatment vibration device with auxiliary lifting assembly and method |
| CN114082883B (en) * | 2021-11-16 | 2023-08-25 | 马鞍山市博立普精密机械有限公司 | Vibrating device and method for molding sand treatment with auxiliary lifting assembly |
| CN114147171A (en) * | 2022-02-07 | 2022-03-08 | 龙口市和义机械配件有限公司 | Molding sand reducing mechanism is used in brake disc casting |
| CN114147171B (en) * | 2022-02-07 | 2022-04-15 | 龙口市和义机械配件有限公司 | Molding sand reducing mechanism is used in brake disc casting |
| CN117564217A (en) * | 2023-11-21 | 2024-02-20 | 浙江海帆阀业有限公司 | Valve body casting equipment capable of automatically screening |
| CN117564217B (en) * | 2023-11-21 | 2024-05-28 | 浙江海帆阀业有限公司 | Valve body casting equipment capable of automatically screening |
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Application publication date: 20201016 |
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