CN218015590U - Device for screening, recycling and reusing used sand for precision casting - Google Patents
Device for screening, recycling and reusing used sand for precision casting Download PDFInfo
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- CN218015590U CN218015590U CN202222026842.7U CN202222026842U CN218015590U CN 218015590 U CN218015590 U CN 218015590U CN 202222026842 U CN202222026842 U CN 202222026842U CN 218015590 U CN218015590 U CN 218015590U
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Abstract
A precise casting used sand screening, recycling and reusing device comprises a screening mechanism, a crushing mechanism and an impurity removing mechanism, wherein the crushing mechanism is arranged on one side of the screening mechanism, the impurity removing mechanism is arranged on the inner side of the screening mechanism, the screening mechanism comprises a box body, a screening cylinder, a screening frame, a baffle, an annular rack, a gear, a fixing frame, a first motor, a second motor, a third motor, a rotating plate, a cleaning brush, supporting legs and adjusting feet, a plurality of supporting legs are arranged at the bottom of the box body, the bottoms of the supporting legs are connected with the adjusting feet through threads, the inner side of the top of the box body is movably connected with the screening cylinder, a plurality of through holes which are uniformly distributed are formed in the screening cylinder, and the outer side of one end of the screening cylinder is fixedly connected with the annular rack; the utility model discloses the third motor rotates for the clearance brush and provides power, and the molding sand brush that the clearance brush will sieve the section of thick bamboo adhesion drops in the section of thick bamboo of screening, can brush the molding sand of gluing on the section of thick bamboo of screening in the screening course of the work through the clearance brush and remove, guarantees the efficiency of molding sand screening.
Description
Technical Field
The utility model belongs to the technical field of the molding sand is retrieved, in particular to precision casting used sand screening recovery recycles device.
Background
After the molding sand is used by casting after molding, the molding sand is flushed to separate the molding sand from the casting, and the separated molding sand needs to be recycled after water removal, so that the subsequent continuous use is facilitated;
the following problems are encountered in the conventional apparatus: 1) The molding sand is at the screening process, because the molding sand part contains moisture, the molding sand is easy to be cohered on the cylinder, causes the efficiency that the influence was screened to the cylinder jam easily.
Disclosure of Invention
The utility model aims at overcoming not enough among the prior art, providing a device is retrieved and recycled to precision casting used sand screening, screening mechanism filters the molding sand, and the molding sand after the screening carries out the edulcoration by edulcoration mechanism, and broken mechanism carries out the breakage to the molding sand of selecting the caking simultaneously.
In order to realize the purpose, the utility model discloses a technical scheme is:
a precise casting used sand screening, recycling and reusing device comprises a screening mechanism, a crushing mechanism and an impurity removing mechanism, wherein the crushing mechanism is arranged on one side of the screening mechanism, and the impurity removing mechanism is arranged on the inner side of the screening mechanism;
the screening mechanism comprises a box body, a screening cylinder, a screening frame, a baffle, an annular rack, a gear, a fixing frame, a first motor, a second motor, a third motor, a rotating plate, a cleaning brush, a supporting leg and an adjusting foot, wherein the bottom of the box body is provided with a plurality of supporting legs, the bottom of each supporting leg is connected with the adjusting foot through a thread, the inner side of the top of the box body is movably connected with the screening cylinder, the screening cylinder is provided with a plurality of uniformly distributed through holes, the outer side of one end of the screening cylinder is fixedly connected with the annular rack, the annular rack is meshed with the gear, the gear is connected with the output end of the first motor, the first motor is fixed on the inner side of the box body, one side of the screening cylinder is provided with the baffle, the baffle is fixed on the box body through the plurality of fixing frames, one side of the baffle is provided with the second motor, the output end of the second motor penetrates through the baffle and is connected with the rotating plate, the bottom of the baffle is provided with a notch corresponding to the rotating plate, the inner side of the screening cylinder is provided with the cleaning brush, one end of the screening brush is movably connected with the screening frame, the screening frame is fixedly connected with the other end of the cleaning brush, and the third motor is fixed on the baffle;
through the support height of rotation regulation foot adjustment supporting leg, adjust the angle of screen drum and horizontal plane, make the one end of screen drum baffle be less than the other end, first motor provides power for gear revolve, the gear passes through the ring rack and drives the screen drum rotation, send old type sand into the screen drum, the molding sand passes through the through-hole on the screen drum and falls into the edulcoration mechanism of bottom half, the molding sand of caking reachs rotor plate department through the screening, the second motor provides power for the rotor plate rotates, expose the breach of baffle bottom, the molding sand of caking falls into broken mechanism through the breach, the third motor provides power for the rotation of clearance brush simultaneously, the molding sand brush of clearance brush with the screen drum adhesion removes to fall in the screen drum.
Preferably, the crushing mechanism comprises a crushing box, fixing rods, rotating rollers, crushing stirring rods, a guide plate, a fourth motor, a rolling roller and a fifth motor, the crushing box is fixedly connected with the box body, the inner side of the crushing box is fixedly connected with the fixing rods, the rotating rollers are arranged between the fixing rods, the plurality of crushing stirring rods are arranged on the outer side of the center of the rotating rollers, the two ends of the rotating rollers are movably connected with the fixing rods, the rotating rollers are connected with the output end of the fourth motor and connected with belt pulleys through belts, the guide plate is arranged at the bottom of the crushing box, the rolling roller is arranged on one side of the bottom of the crushing box, the two ends of the rolling roller are movably connected with the crushing box, one end of the rolling roller is connected with the output end of the fifth motor, and the fifth motor is fixed on one side of the crushing box;
the fourth motor passes through the belt pulley belt and drives the live-rollers rotation, and the live-rollers drives and stirs garrulous pole rotation, and the fifth motor rotates for rolling the roller and provides power, and the molding sand of caking falls to live-rollers department through the breach, stirs garrulous pole and breaks up the molding sand of caking, and the molding sand falls to rolling roller department on the guide plate, rolls loosely by rolling the roller to the molding sand secondary, and the molding sand is falling to edulcoration mechanism.
Preferably, the impurity removing mechanism comprises a flow collecting plate, a leak hole, an electromagnetic rotating plate, a supporting plate, a guide sliding plate, an electromagnetic scraper, a guide frame, a protective cover, a screw rod, a processing box, a sixth motor and a discharging concave plate, wherein the flow collecting plate is fixedly connected with the bottom of the box body, the flow collecting plate is provided with a plurality of leak holes, the electromagnetic rotating plate is arranged at the bottom side of the leak hole, the supporting plate is arranged at the bottom side of the electromagnetic rotating plate, the electromagnetic rotating plate is connected with the output end of the seventh motor, the seventh motor is fixed on the supporting plate, two ends of the supporting plate are fixedly connected with the box body, the electromagnetic scraper is arranged at the bottom side of the flow collecting plate, the guide sliding plates are arranged at two ends of the electromagnetic scraper, the guide sliding plates are fixedly connected with the box body, the bottom of the electromagnetic scraper is fixedly connected with the guide frame, the guide frame is connected with the screw rod through threads, one end of the screw rod is connected with the output end of the sixth motor, the sixth motor is fixed on the box body, the other end of the screw rod is movably connected with the processing box, the processing box is fixedly connected with the box, the outer side of the screw rod, the protective cover is arranged at the outer side of the discharging concave plate is fixedly connected with the bottom of the box, the discharging plate, and is fixedly connected with the bottom of the box, and is arranged in the discharging concave plate;
the molding sand that falls into on the collection flows board passes through the small opening flow direction electromagnetism carousel, the seventh motor rotates for the electromagnetism carousel and provides power, have magnetism after the electromagnetism carousel circular telegram simultaneously, the molding sand falls to being thrown away under the effect of electromagnetism carousel back centrifugation power again, fall into ejection of compact concave plate department, discharge by the discharge opening again, iron fillings in the molding sand are adsorbed to the electromagnetism carousel simultaneously, the screening is accomplished the back, the sixth motor provides power for the lead screw rotation, the lead screw drives the electromagnetism scraper blade through leading the frame and slides in the direction slide, the convenient grit of clearance between the direction slide discharges, electromagnetism scraper blade circular telegram electrified magnetism, when sliding the electromagnetism carousel, the electricity of electromagnetism carousel cuts off the power supply, iron fillings shift to the electromagnetism scraper blade on the electromagnetism carousel, final electromagnetism scraper blade reachs in the processing case, the electricity of electromagnetism scraper blade cuts off the power supply, iron fillings fall into the processing case.
Compared with the prior art, the utility model beneficial effect shows:
1) The molding sand falls into the impurity removing mechanism at the bottom of the box body through the through holes in the screening cylinder, the agglomerated molding sand reaches the rotating plate through screening, the second motor provides power for the rotating plate to rotate, the rotating plate rotates to expose the notch at the bottom of the baffle plate, the agglomerated molding sand falls into the crushing mechanism through the notch, meanwhile, the third motor provides power for the cleaning brush to rotate, the cleaning brush removes the molding sand adhered to the screening cylinder and falls into the screening cylinder, the molding sand adhered to the screening cylinder can be removed through the cleaning brush in the screening working process, and the efficiency of molding sand screening is ensured;
2) The molding sand falls to being thrown away under the effect of electromagnetic turntable back re-centrifugation power, fall into ejection of compact concave plate department, discharge by the discharge opening again, electromagnetic turntable adsorbs the iron fillings in the molding sand simultaneously, the screening is accomplished the back, the sixth motor provides power for the lead screw rotates, the lead screw drives the electromagnetism scraper blade and slides in the direction slide through leading the frame, the clearance between the direction slide makes things convenient for the grit to discharge, electromagnetism scraper blade circular telegram takes magnetism, when sliding electromagnetic turntable, the electromagnetism carousel outage, iron fillings shift to on the electromagnetism scraper blade on electromagnetic turntable, final electromagnetism scraper blade reachs the processing incasement, the electromagnetism scraper blade outage, fall into the iron fillings processing case, can screen the impurity that the casting produced in the molding sand, avoid the impurity after remaining to influence the re-shaping of molding sand, avoid simultaneously the impurity to cause the influence to the material of pouring.
Drawings
FIG. 1 is a schematic structural view of a device for screening, recycling and reusing used sand for precision casting of the utility model;
FIG. 2 is a schematic view of the other side of the device for screening, recovering and recycling used sand for precision casting of the utility model;
FIG. 3 is a schematic view of the internal structure of a device for screening, recovering and recycling used sand for precision casting of the utility model;
FIG. 4 is a schematic view of the internal structure of a screening drum in the device for screening, recycling and reusing used sand for precision casting of the utility model;
in the figure: 1. a screening mechanism; 11. a box body; 12. a screen cylinder; 13. a screening rack; 14. a baffle plate; 15. an annular rack; 16. a gear; 17. a fixed mount; 18. a first motor; 19. a second motor; 101. a third motor; 102. a rotating plate; 103. cleaning a brush; 104. supporting legs; 105. adjusting the foot; 2. a crushing mechanism; 21. a crushing box; 22. fixing the rod; 23. a rotating roller; 24. a stirring and crushing rod; 25. a baffle; 26. a fourth motor; 27. rolling a roller; 28. a fifth motor; 3. an impurity removal mechanism; 31. a current collecting plate; 32. a leak hole; 33. an electromagnetic turntable; 34. a support plate; 35. a guide slide plate; 36. an electromagnetic squeegee; 37. a guide frame; 38. a protective cover; 39. a lead screw; 301. a treatment tank; 302. a sixth motor; 303. and (5) discharging the concave plate.
Detailed Description
For the convenience of understanding of those skilled in the art, the technical solution of the present invention will be further specifically described with reference to fig. 1 to 4.
A precision casting used sand screening, recycling and reusing device comprises a screening mechanism 1, a crushing mechanism 2 and an impurity removing mechanism 3, wherein the crushing mechanism 2 is arranged on one side of the screening mechanism 1, and the impurity removing mechanism 3 is arranged on the inner side of the screening mechanism 1;
the screening mechanism 1 comprises a box body 11, a screening cylinder 12, a screening frame 13, a baffle 14, an annular rack 15, a gear 16, a fixing frame 17, a first motor 18, a second motor 19, a third motor 101, a rotating plate 102, a cleaning brush 103, supporting legs 104 and adjusting feet 105, wherein the bottom of the box body 11 is provided with a plurality of supporting legs 104, the bottoms of the supporting legs 104 are connected with the adjusting feet 105 through threads, the inner side of the top of the box body 11 is movably connected with the screening cylinder 12, the screening cylinder 12 is provided with a plurality of uniformly distributed through holes, the outer side of one end of the screening cylinder 12 is fixedly connected with the annular rack 15, the annular rack 15 is meshed with the gear 16, the gear 16 is connected with the output end of the first motor 18, the first motor 18 is fixed on the inner side of the box body 11, one side of the screening cylinder 12 is provided with the baffle 14, the baffle 14 is fixed on the box body 11 through the fixing frame 17, one side of the baffle 14 is provided with the second motor 19, the output end of the second motor 19 penetrates through the baffle 14 to be connected with the rotating plate 102, the bottom of the baffle 14 is provided with a notch corresponding to the rotating plate 102, the inner side of the screening cylinder 12 is provided with the cleaning brush 103, one end of the cleaning brush 103, the screening frame 13 is connected with the third motor 101, and the baffle 101;
adjust the supporting height of supporting leg 104 through rotation regulation foot 105, adjust the angle of cylinder 12 and horizontal plane, make the one end of cylinder 12 baffle 14 be less than the other end, first motor 18 rotates for gear 16 provides power, gear 16 drives cylinder 12 through ring rack 15 and rotates, send old type sand into cylinder 12, the molding sand falls into on the edulcoration mechanism 3 of box 11 bottom through the through-hole on cylinder 12, the molding sand of caking reachs rotor plate 102 department through the screening, second motor 19 rotates for rotor plate 102 and provides power, rotor plate 102 rotates, expose the breach of baffle 14 bottom, the molding sand of caking falls into crushing mechanism 2 through the breach, third motor 101 rotates for clearance brush 103 and provides power simultaneously, clearance brush 103 removes the molding sand brush of cylinder 12 adhesion and falls in cylinder 12.
The crushing mechanism 2 comprises a crushing box 21, fixing rods 22, rotating rollers 23, crushing rods 24, a guide plate 25, a fourth motor 26, a rolling roller 27 and a fifth motor 28, the crushing box 21 is fixedly connected with the box body 11, the inner side of the crushing box 21 is fixedly connected with the fixing rods 22, the rotating rollers 23 are arranged between the fixing rods 22, the stirring rods 24 are arranged on the outer side of the center of the rotating rollers 23, the two ends of the rotating rollers 23 are movably connected with the fixing rods 22, the rotating rollers 23 are connected with the output end of the fourth motor 26, the rotating rollers 23 are connected with each other through a belt and a belt pulley, the guide plate 25 is arranged at the bottom of the crushing box 21, the rolling roller 27 is arranged on one side of the bottom of the crushing box 21, the two ends of the rolling roller 27 are movably connected with the crushing box 21, one end of the rolling roller 27 is connected with the output end of the fifth motor 28, and the fifth motor 28 is fixed on one side of the crushing box 21;
fourth motor 26 drives live-rollers 23 through the belt pulley belt and rotates, and live-rollers 23 drives stirs garrulous pole 24 and rotates, and fifth motor 28 rotates for rolling roller 27 and provides power, and the molding sand of caking falls to live-rollers 23 department through the breach, stirs garrulous pole 24 and breaks up the molding sand of caking, and the molding sand falls to rolling roller 27 department on guide plate 25, rolls loosely to the molding sand secondary by rolling roller 27, and the molding sand is falling to edulcoration mechanism 3.
The impurity removing mechanism 3 comprises a flow collecting plate 31, leak holes 32, an electromagnetic rotating plate 33, a supporting plate 34, a guide sliding plate 35, an electromagnetic scraping plate 36, a guide moving frame 37, a protective cover 38, a screw rod 39, a processing box 301, a sixth motor 302 and a discharging concave plate 303, wherein the flow collecting plate 31 is fixedly connected with the bottom of the box body 11, the flow collecting plate 31 is provided with a plurality of leak holes 32, the electromagnetic rotating plate 33 is arranged at the bottom side of the leak holes 32, the supporting plate 34 is arranged at the bottom side of the electromagnetic rotating plate 33, the electromagnetic rotating plate 33 is connected with the output end of a seventh motor, the seventh motor is fixed on the supporting plate 34, two ends of the supporting plate 34 are fixedly connected with the box body 11, the electromagnetic scraping plate 36 is arranged at the bottom side of the flow collecting plate 31, a plurality of guide sliding plates 35 are arranged at two ends of the electromagnetic scraping plate 36, the guide sliding plates 35 are fixedly connected with the box body 11, the bottom of the electromagnetic scraping plate 36 is fixedly connected with the guide moving frame 37, the guide moving frame 37 is connected with the screw rod 39 through threads, one end of the screw rod 39 is connected with the output end of the sixth motor 302, the sixth motor 302 is fixed on the box body 11, the other end of the screw rod 39 is connected with the processing box 301, the discharging concave plate 303, the discharging concave plate is arranged at the outer side of the box body 11, and the discharging concave plate 303;
the molding sand that falls into on the current-collecting plate 31 passes through the small opening 32 and flows to electromagnetic rotary table 33, the seventh motor rotates for electromagnetic rotary table 33 and provides power, electromagnetic rotary table 33 has magnetism after circular telegram simultaneously, the molding sand falls to being thrown away under the effect of electromagnetic rotary table 33 back centrifugal force again, fall into ejection of compact concave plate 303 department, discharge by the discharge opening again, electromagnetic rotary table 33 adsorbs the iron fillings in the molding sand simultaneously, the screening is accomplished the back, sixth motor 302 rotates for lead screw 39 and provides power, lead screw 39 drives electromagnetic scraper 36 through guide frame 37 and slides in direction slide 35, the convenient grit in clearance between the direction slide 35 discharges, electromagnetic scraper 36 circular telegram magnetism, when sliding through electromagnetic rotary table 33, electromagnetic rotary table 33 cuts off the power supply, iron fillings shift to electromagnetic scraper 36 on electromagnetic rotary table 33, final electromagnetic scraper 36 arrives in handling the case 301, electromagnetic scraper 36 cuts off the power supply, iron fillings fall into in handling the case 301.
The utility model provides a precision casting used sand screening recovery recycles device, the working process as follows:
the supporting height of the supporting legs is adjusted through rotating the adjusting feet, the angles of the screening cylinder and the horizontal plane are adjusted, one end of the screening cylinder baffle is lower than the other end, the first motor provides power for gear rotation, the gear drives the screening cylinder to rotate through the annular rack, old molding sand is sent into the screening cylinder, the molding sand falls into a flow gathering plate at the bottom of the box body through a through hole in the screening cylinder, the agglomerated molding sand reaches the rotating plate through screening, the second motor provides power for rotating the rotating plate, the rotating plate rotates, a notch at the bottom of the baffle is exposed, the agglomerated molding sand falls into a rotating roller through the notch, the stirring and crushing rod scatters the agglomerated molding sand, the molding sand falls onto the flow guiding plate and falls into the rolling roller, secondary rolling of the molding sand is loose, and the molding sand falls into the flow gathering plate;
the molding sand that falls into on the collection flows board passes through the small opening flow direction electromagnetism carousel, the seventh motor rotates for the electromagnetism carousel and provides power, have magnetism after the electromagnetism carousel circular telegram simultaneously, the molding sand falls to being thrown away under the effect of electromagnetism carousel back centrifugation power again, fall into ejection of compact concave plate department, discharge by the discharge opening again, iron fillings in the molding sand are adsorbed to the electromagnetism carousel simultaneously, the screening is accomplished the back, the sixth motor provides power for the lead screw rotation, the lead screw drives the electromagnetism scraper blade through leading the frame and slides in the direction slide, the convenient grit of clearance between the direction slide discharges, electromagnetism scraper blade circular telegram electrified magnetism, when sliding the electromagnetism carousel, the electricity of electromagnetism carousel cuts off the power supply, iron fillings shift to the electromagnetism scraper blade on the electromagnetism carousel, final electromagnetism scraper blade reachs in the processing case, the electricity of electromagnetism scraper blade cuts off the power supply, iron fillings fall into the processing case.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (3)
1. A precise casting used sand screening, recycling and reusing device comprises a screening mechanism, a crushing mechanism and an impurity removing mechanism, and is characterized in that the crushing mechanism is arranged on one side of the screening mechanism, and the impurity removing mechanism is arranged on the inner side of the screening mechanism;
screening mechanism includes the box, the filter bowl, the screening frame, the baffle, the annular rack, the gear, the mount, first motor, the second motor, the third motor, the rotor plate, the clearance brush, the supporting leg, adjust the foot, the bottom half is equipped with a plurality of supporting legs, the supporting leg bottom is passed through the screw thread and is adjusted the foot and be connected, box top inboard and filter bowl swing joint, be equipped with a plurality of evenly distributed's through-hole on the filter bowl, filter bowl one end outside and annular rack fixed connection, annular rack and gear engagement, gear and first motor output are connected, first motor is fixed at the box inboard, filter bowl one side is equipped with the baffle, the baffle is fixed on the box through a plurality of mounts, baffle one side is equipped with the second motor, the second motor output passes baffle and rotor plate and connects, the baffle bottom is equipped with the breach corresponding with the rotor plate, the filter bowl inboard is equipped with the clearance brush, clearance brush one end and screening frame swing joint, filter bowl and box fixed connection, the clearance brush other end and the third motor output are connected, the third motor is fixed on the baffle.
2. The precise casting used sand screening, recycling and reusing device according to claim 1, wherein the crushing mechanism comprises a crushing box, fixing rods, rotating rollers, crushing rods, a guide plate, a fourth motor, a rolling roller and a fifth motor, the crushing box is fixedly connected with the box, the inner side of the crushing box is fixedly connected with the fixing rods, the rotating rollers are arranged between the fixing rods, the plurality of crushing rods are arranged outside the center of the rotating rollers, the two ends of the rotating rollers are movably connected with the fixing rods, the rotating rollers are connected with the output end of the fourth motor, the rotating rollers are connected with each other through belts and belt pulleys, the guide plate is arranged at the bottom of the crushing box, the rolling roller is arranged on one side of the bottom of the crushing box, the two ends of the rolling roller are movably connected with the crushing box, one end of the rolling roller is connected with the output end of the fifth motor, and the fifth motor is fixed on one side of the crushing box.
3. The precise casting used sand screening, recycling and reusing device according to claim 1, wherein the impurity removing mechanism comprises a flow collecting plate, a plurality of holes, an electromagnetic rotary table, a support plate, a guide sliding plate, an electromagnetic scraper, a guide frame, a protective cover, a screw rod, a processing box, a sixth motor and a discharging concave plate, the flow collecting plate is fixedly connected with the bottom of the box body, the plurality of holes are formed in the flow collecting plate, the electromagnetic rotary table is arranged on the bottom side of each hole, the support plate is arranged on the bottom side of the electromagnetic rotary table, the electromagnetic rotary table is connected with an output end of the seventh motor, the seventh motor is fixed on the support plate, two ends of the support plate are fixedly connected with the box body, the electromagnetic scraper is arranged on the bottom side of the flow collecting plate, the plurality of guide sliding plates are arranged on two ends of the electromagnetic scraper, the guide sliding plates are fixedly connected with the box body, the bottom of the electromagnetic scraper is fixedly connected with the guide frame, the guide frame is connected with the screw rod through threads, one end of the screw rod is connected with an output end of the sixth motor, the sixth motor is fixed on the box body, the other end of the screw rod is movably connected with the processing box body, the protective cover is fixedly connected with the bottom of the discharging concave plate, and the discharging concave plate is arranged in the middle of the processing box body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222026842.7U CN218015590U (en) | 2022-08-02 | 2022-08-02 | Device for screening, recycling and reusing used sand for precision casting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222026842.7U CN218015590U (en) | 2022-08-02 | 2022-08-02 | Device for screening, recycling and reusing used sand for precision casting |
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| CN218015590U true CN218015590U (en) | 2022-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116197352A (en) * | 2023-04-13 | 2023-06-02 | 临沂富中机械有限公司 | Automatic cleaning and recycling device for precision casting molding sand |
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- 2022-08-02 CN CN202222026842.7U patent/CN218015590U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116197352A (en) * | 2023-04-13 | 2023-06-02 | 临沂富中机械有限公司 | Automatic cleaning and recycling device for precision casting molding sand |
| CN116197352B (en) * | 2023-04-13 | 2023-07-28 | 临沂富中机械有限公司 | Automatic cleaning and recycling device for precision casting molding sand |
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