CN114905418B

CN114905418B - 3D polishes with sandblast recovery processing device

Info

Publication number: CN114905418B
Application number: CN202210420027.0A
Authority: CN
Inventors: 王林; 郑宝刚; 冯文强
Original assignee: Nanjing Chenglian Laser Technology Co Ltd
Current assignee: Nanjing Chenglian Laser Technology Co Ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2023-04-18
Anticipated expiration: 2042-04-20
Also published as: CN114905418A

Abstract

The invention provides a sand blasting recovery processing device for 3D grinding, which belongs to the technical field of 3D printing and comprises a processing box, wherein the inner side of the processing box is rotatably connected with two first rotating shafts, conveying rollers I are respectively arranged on the outer sides of the two first rotating shafts, a first conveying belt is arranged on the outer sides of the two first conveying rollers, the inner side of the processing box is rotatably connected with two second rotating shafts, conveying rollers II are respectively arranged on the outer sides of the two second rotating shafts, and a second conveying belt is arranged on the outer sides of the two second conveying rollers. The problem that metal scraps left after 3D printing product treatment need to be treated in sand blasting is solved, the movable sleeve moves to drive the connecting blocks, the movable strips, the flattening plate and the guide columns to move, the flattening plate flattens the abrasive sand, accumulation does not occur, and the phenomenon that adsorption of electromagnets on the metal scraps in the abrasive sand is hindered due to accumulation to influence recovery treatment of the abrasive sand is prevented.

Description

3D polishes with sandblast recovery processing device

Technical Field

The invention belongs to the technical field of 3D printing, and particularly relates to a sand blasting recovery processing device for 3D grinding.

Background

After the 3D printing product is manufactured, the product is subjected to post-treatment technologies such as piece washing, curing, sand blasting, polishing and the like. The post-treatment technology can improve the mechanical property of the surface of the product, thereby improving the fatigue resistance of the product and increasing the adhesive force between the product and a coating.

Present 3D prints the product and can print through metal material, and the sandblast is printing the product to 3D and is handling the back, can contain the metal piece that 3D left after printing the product and handling in the sandblast, need handle the metal piece in the sandblast, otherwise can influence subsequent 3D and print polishing of product, provides a 3D from this and polishes with sandblast recovery processing device.

Disclosure of Invention

The invention provides a sand blasting recovery processing device for 3D (three-dimensional) grinding, which aims to solve the problem that metal scraps left after 3D printing product processing are contained in sand blasting and need to be processed in the sand blasting.

The invention provides a sand blasting recovery processing device for 3D polishing, which comprises a processing box, wherein the inner side of the processing box is rotatably connected with two first rotating shafts, the outer sides of the two first rotating shafts are respectively provided with a first conveying roller, the outer sides of the two first conveying rollers are respectively provided with a first conveying belt, the inner side of the processing box is rotatably connected with two second rotating shafts, the outer sides of the two second rotating shafts are respectively provided with a second conveying roller, the outer sides of the two second conveying rollers are respectively provided with a second conveying belt, the outer sides of the second conveying belts are respectively provided with a plurality of protective housings, the inner sides of the plurality of protective housings are respectively provided with an electromagnet, the inner top wall of the processing box is provided with a flattening assembly, the right side of the top of the processing box is fixedly connected with a storage shell, the right side of the processing box is fixedly connected with one end of a supporting rod, the other end of the supporting rod is fixedly connected with an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected with a sealing plate, the right side of the bottom of the processing box is fixedly connected with a dropping pipeline, the inner side of the processing box is provided with a guide plate, the inner side of the processing box is provided with a collecting shell positioned below the second conveying belt, the bottom of the collecting shell is fixedly connected with two conveying pipelines, and the rear side wall of the processing box is fixedly connected with a second motor;

the flattening assembly comprises a reciprocating screw, a moving sleeve, a connecting block, a fixed plate, a moving strip, a flattening plate, guide pillars, springs, a moving groove, convex blocks, an auxiliary plate, limiting grooves and a motor I, wherein the reciprocating screw is positioned on the inner side of the processing box and is rotationally connected with the processing box, the moving sleeve is in threaded connection with the outer side of the reciprocating screw, the connecting block is fixedly connected with the outer side of the moving sleeve, the fixed plate is fixedly connected with the inner top wall of the processing box, the moving strip penetrates through the connecting block and is slidably connected with the connecting block, the flattening plate is fixedly connected with the bottom of the moving strip, the guide pillars are fixedly connected with the outer side of the moving strip, the bottom of each spring is fixedly connected with the top of the connecting block, the top of each spring is fixedly connected with the bottom of each guide pillar, the moving groove is formed in the right side of the fixed plate, the convex blocks are provided with two, the two convex blocks are symmetrically arranged in front and back directions, the convex blocks are positioned in the moving groove and are fixedly connected with the fixed plate, the auxiliary plate is hinged with the corresponding convex blocks, the two limiting grooves are formed in the fixed plate, and are connected with the side wall of the processing box;

intermittent type cooperation subassembly includes transfer line, bevel gear one, outer ring shell, support bar, inner ring shell, drive lever, driven gear, driving gear, bevel gear two, chain, electric contact point one and electric contact point two, the one end of transfer line and the back output fixed connection of motor two, bevel gear one and the other end fixed connection of transfer line, the outer ring shell be located between two pipeline and with pipeline fixed connection, the support bar is provided with a plurality ofly, and is a plurality of the one end of support bar all with the inside wall fixed connection of outer ring shell, the outside of inner ring shell and the other end fixed connection of a plurality of support bars, the drive lever rotates with the inner ring shell to be connected, the driven lever is provided with threely, driven gear rotates with the inner ring shell to be connected, driven gear is provided with two, driven gear and the driven lever fixed connection who corresponds, the top fixed connection of driving gear and drive lever, bevel gear two and the bottom fixed connection of drive lever, the outside at driven lever and driving gear is installed to the chain, electric contact point one is provided with four, electric contact point one and the inside wall fixed connection of outer ring shell, electric contact point two outside fixed connection of chain.

Through adopting above-mentioned technical scheme, utilize the shakeout subassembly can shakeout the abrasive material sand of the unloading that drops the storage shell, prevent that the abrasive material sand from piling up, the influence is to metal powder's absorption and then influence abrasive material sand and metal powder's separation, utilize intermittent type cooperation subassembly can control the intermittent type outage of four groups of electro-magnets, when a set of electro-magnet removes directly over collecting the shell, electric contact two contacts with the electric contact that corresponds, make and be located a set of electro-magnet outage directly over collecting the shell, during absorbent metal piece can drop collects the shell, collect metal piece.

Further, the socket that matches with the shrouding is seted up to the right side wall of storage shell, the rear side fixedly connected with motor three of handling the case is located the left the rear end of pivot one stretches out the rear side wall of handling the case and with motor three's output fixed connection, is located the right side the rear end of pivot two runs through the rear side wall of handling the case and with motor two's preceding output fixed connection.

Through adopting above-mentioned technical scheme, the unloading speed that utilizes the cooperation of electric telescopic handle and shrouding can control the abrasive material sand prevents that the unloading from causing at the excessive speed to pile up, influence processing, and motor three drives pivot one, conveying roller one and then makes a conveyer belt operation carry the abrasive material sand, and motor two drives pivot two, conveying roller two and then makes two operations of conveyer belt carry the abrasive material sand.

Furthermore, the stock guide is arranged in an inclined mode, the conveying pipeline penetrates through the rear side wall of the treatment box and is arranged in an inclined mode, the storage box is installed on the rear side wall of the treatment box, and one end, penetrating through the rear side wall of the treatment box, of the conveying pipeline is located above the storage box.

Through adopting above-mentioned technical scheme, utilize the guide plate to assist the abrasive material sand to drop on the surface of conveyer belt one, carry out the abrasive material sand and handle the case, the containing box is collected metal piece, will be collected the metal piece that the shell was collected and carry the containing box through pipeline.

Furthermore, an opening matched with the connecting block is formed in the fixing plate, the rear end of the reciprocating screw penetrates through the rear side wall of the processing box and is fixedly connected with the output end of the motor I, the guide pillar is matched with the moving groove, and a sliding opening matched with the moving strip is formed in the connecting block.

Through adopting above-mentioned technical scheme, utilize opening and connecting block cooperation, the opening limits the connecting block and can guarantee to remove the linear motion of cover.

Furthermore, the three driven rods and the three driving rods are arranged on the inner ring shell at equal intervals, the four electric contact points I are arranged at equal intervals and correspond to the driven rods and the driving rods in position, and the outer side of the bevel gear I is meshed with the outer side of the bevel gear II.

Through adopting above-mentioned technical scheme, the equidistance sets up, makes electrical contact two the same with every electrical contact one's contact time interval, and then with the every group electro-magnet rotation time phase-match on the conveyer belt two.

Furthermore, a controller is installed on the outer side of the processing box, the protective housings are evenly distributed in four groups, each group of electromagnets is electrically connected with the corresponding first electric contact point, and the controller is electrically connected with the first electric contact point, the second electric contact point and the electromagnets.

Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:

according to the invention, the fixed plate can stop the accumulated abrasive sand on the right side of the fixed plate, then the output end of the motor I drives the reciprocating screw to rotate, so that the movable sleeve reciprocates back and forth, the movable sleeve moves to drive the connecting block, the movable strip, the spreading plate and the guide posts to move, the spreading plate spreads the abrasive sand, accumulation cannot occur, and the influence on the recovery treatment of the abrasive sand caused by the adsorption of metal fragments in the abrasive sand by the electromagnet due to accumulation is prevented.

According to the invention, the rear output end of the second motor drives the transmission rod to rotate so that the bevel gear drives the second bevel gear, the driving rod and the driving gear to rotate, and further the chain drives the electric contact point two to move.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

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

FIG. 3 is a schematic view of the intermittent engagement assembly of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 1;

FIG. 5 is a right-view structural diagram of a fixing plate of the present invention

Fig. 6 is an enlarged view of the structure at B in fig. 5.

Reference numerals: 1. a treatment tank; 2. a first rotating shaft; 3. a first conveying roller; 4. a first conveyor belt; 5. a second rotating shaft; 6. a second conveying roller; 7. a second conveyor belt; 8. a protective shell; 9. an electromagnet; 10. flattening the assembly; 1001. a reciprocating screw; 1002. moving the sleeve; 1003. connecting blocks; 1004. a fixing plate; 1005. a moving bar; 1006. flattening; 1007. a guide post; 1008. a spring; 1009. a moving groove; 1010. a raised block; 1011. an auxiliary plate; 1012. a limiting groove; 1013. a first motor; 11. a material storage shell; 12. a support bar; 13. an electric telescopic rod; 14. closing the plate; 15. dropping the pipeline; 16. a material guide plate; 17. a delivery conduit; 18. an intermittent fitting assembly; 1801. a transmission rod; 1802. a first bevel gear; 1803. an outer annular shell; 1804. a supporting strip; 1805. an inner annular shell; 1806. a driving lever; 1807. a driven lever; 1808. a driven gear; 1809. a driving gear; 1810. a second bevel gear; 1811. a chain; 1812. a first electric contact point; 1813. a second electric contact point; 19. a second motor; 20. the shell is collected.

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the specific embodiments of the present invention. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without inventive step, are within the scope of protection of the invention.

As shown in fig. 1-6, the invention provides a sand blasting recycling device for 3D polishing, which comprises a processing box 1, wherein the inner side of the processing box 1 is rotatably connected with two first rotating shafts 2, the outer sides of the two first rotating shafts 2 are respectively provided with a first conveying roller 3, the outer sides of the two first conveying rollers 3 are respectively provided with a first conveying belt 4, the inner side of the processing box 1 is rotatably connected with two second rotating shafts 5, the outer sides of the two second rotating shafts 5 are respectively provided with a second conveying roller 6, the outer sides of the two second conveying rollers 6 are provided with a second conveying belt 7, the outer sides of the second conveying rollers 7 are provided with a plurality of protective shells 8, the inner sides of the plurality of protective shells 8 are respectively provided with an electromagnet 9, the inner top wall of the processing box 1 is provided with a flattening assembly 10, the top right side of the processing box 1 is fixedly connected with a storage shell 11, the right side of the processing box 1 is fixedly connected with one end of a supporting rod 12, the other end of the supporting rod 12 is fixedly connected with an electric telescopic rod 13, the telescopic rod 13 is fixedly connected with a sealing plate 14, the bottom right side of the processing box 1 is fixedly connected with a pipeline 15, the inner side of the processing box 1 is fixedly connected with a guide plate 16, the inner side wall of the processing box 1 is fixedly connected with a collecting shell 20, the collecting shell 20, and the side wall of the processing box 1 is fixedly connected with a motor 19.

The socket that matches with shrouding 14 is seted up to the right side wall of storage shell 11, the rear side fixedly connected with motor three of case 1 is handled, the rear end that is located left pivot 2 stretches out the rear side wall of handling case 1 and with motor three's output fixed connection, the rear end that is located two 5 pivots on right side runs through the rear side wall of handling case 1 and with two 19 preceding output fixed connection of motor, utilize the unloading speed that electric telescopic handle 13 and shrouding 14's cooperation can control the abrasive material sand, prevent that the unloading from causing at the excessive speed and piling up, the influence is handled, motor three drives pivot one 2, conveying roller one 3 and then make 4 functions of conveyer belt carry the abrasive material sand, two 19 drive pivots two 5 of motor, two 6 and then make two 7 functions of conveyer belt carry the abrasive material sand.

The guide plate 16 is arranged in an inclined mode, the conveying pipeline 17 penetrates through the rear side wall of the treatment box 1 and is arranged in an inclined mode, the storage box is installed on the rear side wall of the treatment box 1, one end, penetrating through the rear side wall of the treatment box 1, of the conveying pipeline 17 is located above the storage box, the guide plate 16 is used for assisting abrasive sand to fall on the surface of the first conveying belt 4, the abrasive sand is conveyed out of the treatment box 1, the storage box collects metal fragments, and the metal fragments collected by the collection shell 20 are conveyed into the storage box through the conveying pipeline 17.

The leveling assembly 10 comprises a reciprocating screw 1001, a moving sleeve 1002, a connecting block 1003, a fixing plate 1004, a moving strip 1005, a leveling plate 1006, a guide pillar 1007, a spring 1008, a moving groove 1009, a convex block 1010, an auxiliary plate 1011, a limiting groove 1012 and a motor 1013, the reciprocating screw 1001 is positioned on the inner side of the processing box 1 and rotatably connected with the processing box 1, the moving sleeve 1002 is in threaded connection with the outer side of the reciprocating screw 1001, the connecting block 1003 is fixedly connected with the outer side of the moving sleeve 1002, the fixing plate 1004 is fixedly connected with the inner top wall of the processing box 1, the moving strip 1005 penetrates through the connecting block 1003 and is in sliding connection with the connecting block 1003, the leveling plate 1006 is fixedly connected with the bottom of the moving strip 1005, the guide pillar 1007 is fixedly connected with the outer side of the moving strip 1012, the bottom of the spring 1008 is fixedly connected with the top of the connecting block 1003, the top of the spring 1008 is fixedly connected with the bottom of the guide pillar 1007, the moving groove is arranged on the right side of the fixing plate 1004, the convex block 1010 is provided with two convex blocks 1010, the two convex blocks 1010 are symmetrically arranged in front and back, the grinding material storage box 1010 is positioned in the grinding material storage groove 1010 and can be used for preventing the grinding material from falling, the grinding material storage box 10 from being separated from the grinding material storage box 10, and the grinding material storage groove 1013, and the grinding material storage box 10 is arranged in the grinding material storage groove 1013, and the grinding material storage box 1, and the grinding material storage box is arranged in the grinding material storage groove 1013.

Set up the opening that matches with connecting block 1003 on the fixed plate 1004, the rear end of reciprocal screw 1001 run through the rear side wall of handling case 1 and with the output fixed connection of a 1013 of motor, guide pillar 1007 and shifting chute 1009 phase-match, set up the sliding opening that matches with removal strip 1005 on the connecting block 1003, utilize opening and connecting block 1003 cooperation, the opening limits the connecting block 1003 and can guarantee the linear motion of removing cover 1002.

The intermittent matching assembly 18 comprises a driving rod 1801, a bevel gear I1802, an outer ring shell 1803, supporting bars 1804, an inner ring shell 1805, a driving rod 1806, a driven rod 1807, a driven gear 1808, a driving gear 1809, a bevel gear II 1810, a chain 1811, an electric contact point I1812 and an electric contact point II 1813, one end of the driving rod 1801 is fixedly connected with the rear output end of a motor II 19, the bevel gear I1802 is fixedly connected with the other end of the driving rod 1801, the outer ring shell 1803 is positioned between two conveying pipelines 17 and is fixedly connected with the conveying pipelines 17, a plurality of supporting bars 1804 are arranged on the driving rod 1804, one ends of the supporting bars 1804 are fixedly connected with the inner side wall of the outer ring shell 1803, the outer side of the inner ring shell 1805 is fixedly connected with the other ends of the supporting bars 1804, the driving rod 1806 is rotatably connected with the inner ring shell 1805, three supporting bars 1807 are arranged on the driving rod 1807 and rotatably connected with the inner ring shell 1805, two driven gears 1808 are provided, the driven gears 1808 are fixedly connected with corresponding driven rods 1807, the driving gears 1809 are fixedly connected with the top ends of the driving rods 1806, the bevel gears 1810 are fixedly connected with the bottom ends of the driving rods 1806, the chains 1811 are installed on the outer sides of the driven rods 1807 and the driving gears 1809, four electric contact points one 1812 are provided, the electric contact points one 1812 are fixedly connected with the inner side wall of the outer ring shell 1803, the electric contact points two 1813 are fixedly connected with the outer sides of the chains 1811, the intermittent power failure of the four groups of electromagnets 9 can be controlled by the intermittent matching assembly 18, when one group of electromagnets 9 moves right above the collecting shell 20, the electric contact points two 1813 are in contact with the corresponding electric contact points one 1812, so that the group of electromagnets 9 located right above the collecting shell 20 is powered off, and adsorbed metal debris can fall into the collecting shell 20 to be collected.

The three driven rods 1807 and the driving rod 1806 are arranged on the inner ring shell 1805 at equal intervals, the four electric contact points I1812 are arranged at equal intervals and correspond to the positions of the driven rods 1807 and the driving rod 1806, the outer side of the bevel gear I1802 is meshed with the outer side of the bevel gear II 1810, the electric contact points II 1813 are arranged at equal intervals, the contact time interval between each electric contact point I1812 is the same, and therefore the rotation time of each group of electromagnets 9 on the conveyor belt II 7 is matched.

The outer side of the processing box 1 is provided with a controller, the plurality of protective shells 8 are uniformly distributed into four groups, each group of electromagnets 9 is electrically connected with the corresponding first electric contact point 1812, and the controller is electrically connected with the first electric contact point 1812, the second electric contact point 1813 and the electromagnets 9.

The implementation mode specifically comprises the following steps: abrasive sand containing metal debris is placed in the storage shell 11, the telescopic end of the electric telescopic rod 13 can be controlled to drive the sealing plate 14 to be opened at the moment, the abrasive sand is fed onto the surface of the second conveyor belt 7 in the processing box 1, the front output end of the second motor 19 drives the second rotating shaft 5 to rotate, and then the second conveying roller 6 and the second conveyor belt 7 rotate to convey the abrasive sand, in the process that the second conveyor belt 7 conveys the abrasive sand, the electromagnet 9 is electrified to generate magnetism, the metal scraps in the abrasive sand are adsorbed, in the process of conveying, the fixing plate 1004 stops the accumulated abrasive sand at the right side of the fixing plate 1004, at the moment, the output end of the motor 1013 drives the reciprocating screw 1001 to rotate, so that the moving sleeve 1002 reciprocates forwards and backwards, the moving sleeve 1002 moves to drive the connecting block 1003, the moving strip 1005, the flattening plate 1006 and the guide post 1007 to move, when the guide pillar 1007 and the leveling plate 1006 move, the leveling plate 1006 levels the abrasive sand, which may be accumulated on one side of the moving direction of the leveling plate 1006, when the guide post 1007 moves to the limiting groove 1012 and is under the action of the limiting groove 1012, the guide post 1007 slides upwards to pass through the convex block 1010, and stretches the spring 1008, then, upon falling from the nub 1010, at which point the spreader plate 1006 passes over the accumulated abrasive sand pushed by it, the guide post 1007 is reset under the action of the spring 1008, and then when the flattening plate 1006 moves in the opposite direction, the spreading plate 1006 pushes the accumulated abrasive sand to be driven again for spreading, and the auxiliary plate 1011 is driven by the bottom of the convex block 1010, after the guide pillar 1007 passes through the auxiliary plate 1011, under the gravity of the auxiliary plate 1011 itself, the bottom end of the auxiliary plate 1011 enters the limit groove 1012 again, and the above steps are repeated, and the abrasive sand is flattened by moving the flattening plate 1006 forwards and backwards;

when the electromagnet 9 is electrified to generate magnetism, metal debris in the abrasive sand is adsorbed, when the abrasive sand is conveyed to the left side of the second conveyor belt 7, the abrasive sand with the metal debris removed falls on the material guide plate 16 and then falls on the first conveyor belt 4 and is conveyed to the falling pipeline 15 by the first conveyor belt 4 to be discharged, a worker can treat the discharged abrasive sand, in the operation process of the second conveyor belt 7, the rear output end of the second motor 19 drives the transmission rod 1801 to rotate, so that the first bevel gear 1802 drives the second bevel gear 1810, the driving rod 1806 and the driving gear 1809 to rotate, the chain 1811 drives the second electrical contact point 1813 to move, when the group of electromagnets 9 adsorbing the metal debris moves right above the collection shell 20, the chain 1811 drives the second electrical contact point 1813 to move to the corresponding first electrical contact point 1812 and contact, at the moment, the group of electromagnets 9 moving right above the collection shell 20 is powered off through the controller, the adsorbed metal debris falls into the collection shell 20 and then is discharged into the storage box through the conveying pipeline 17, and the metal debris is collected and conveniently treated and separated from the metal debris.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a 3D polishes with sandblast recovery processing device, includes and handles case (1), its characterized in that, the inboard of handling case (1) rotates and is connected with two pivot one (2), two conveying roller one (3) are all installed in the outside of pivot one (2), two conveyer belt one (4) are installed in the outside of conveying roller one (3), the inboard of handling case (1) rotates and is connected with two pivot two (5), two conveying roller two (6) are all installed in the outside of pivot two (5), two conveyer belt two (7) are installed in the outside of conveying roller two (6), a plurality of protective housing (8) are installed in the outside of conveyer belt two (7), a plurality of electro-magnet (9) are all installed to the inboard of protective housing (8), the interior roof of handling case (1) is installed and is shakeouts subassembly (10), the top right side fixedly connected with storage shell (11) of handling case (1), the right side fixedly connected with the one end of bracing piece (12) of handling case (1), the other end fixedly connected with electric telescopic link (13) of bracing piece (12), the telescopic link (14) that the end fixedly connected with telescopic link (14) that the right side dropped handles the blanking box (1), the blanking box (16) the blanking board (16) that the inboard is installed, a collecting shell (20) positioned below the second conveyor belt (7) is installed on the inner side of the treatment box (1), two conveying pipelines (17) are fixedly connected to the bottom of the collecting shell (20), and a second motor (19) is fixedly connected to the rear side wall of the treatment box (1);

the flattening assembly (10) comprises a reciprocating screw rod (1001), a moving sleeve (1002), a connecting block (1003), a fixing plate (1004), a moving strip (1005), a flattening plate (1006), a guide post (1007), a spring (1008), a moving groove (1009), a protruding block (1010), an auxiliary plate (1011), a limiting groove (1012) and a motor I (1013), wherein the reciprocating screw rod (1001) is positioned on the inner side of the processing box (1) and is rotatably connected with the processing box (1), the moving sleeve (1002) is in threaded connection with the outer side of the reciprocating screw rod (1001), the connecting block (1003) is fixedly connected with the outer side of the moving sleeve (1002), the fixing plate (1004) is fixedly connected with the inner top wall of the processing box (1), the moving strip (1005) penetrates through the connecting block (1003) and is slidably connected with the connecting block (1003), the flattening plate (1006) is fixedly connected with the bottom of the moving strip (1005), the guide post (1007) is fixedly connected with the outer side of the moving strip (1005), the bottom of the spring (1008) is fixedly connected with the top of the connecting block (1003), the top of the spring (1010) is arranged on the right side of the fixing plate (1010), and two protruding blocks (1010) are arranged on the front side of the fixing plate (1004), and two protruding blocks (1013) are arranged on the front side of the fixing plate (1010) and are arranged on the fixing plate (1004), the rear ends of the two auxiliary plates (1011) are symmetrically arranged, the protruding blocks (1010) are positioned in the moving grooves (1009) and fixedly connected with the fixed plate (1004), the number of the two auxiliary plates (1011) is two, the auxiliary plates (1011) are hinged with the corresponding protruding blocks (1010), the number of the two limiting grooves (1012) is two, the limiting grooves (1012) are formed in the fixed plate (1004) and positioned in the moving grooves (1009), and the first motor (1013) is fixedly connected with the rear side wall of the treatment box (1);

the intermittent fitting assembly (18) comprises a transmission rod (1801), a bevel gear I (1802), an outer ring shell (1803), support bars (1804), an inner ring shell (1805), a driving rod (1806), a driven rod (1807), a driven gear (1808), a driving gear (1809), a bevel gear II (1810), a chain (1811), an electric contact point I (1812) and an electric contact point II (1813), one end of the transmission rod (1801) is fixedly connected with the rear output end of a motor II (19), the other ends of the bevel gear I (1802) and the transmission rod (1801) are fixedly connected, the outer ring shell (1803) is positioned between two conveying pipelines (17) and is fixedly connected with the conveying pipelines (17), the support bars (1806) are provided with a plurality of support bars (1804), one end of each support bar (1804) is fixedly connected with the inner side wall of the driven ring shell (1803), the outer side of the inner ring shell (1805) is fixedly connected with the other ends of the support bars (1804), the driving rod (1806) is rotatably connected with the inner ring shell (1805), the driven rod (1807) is provided with the driving rod (1808), and the top end of the driving rod (1807) is correspondingly connected with the driving rod (1807), and the driving rod (1808), the bevel gear II (1810) is fixedly connected with the bottom end of the driving rod (1806), the chain (1811) is installed on the outer sides of the driven rod (1807) and the driving gear (1809), four electric contact points I (1812) are arranged, the electric contact points I (1812) are fixedly connected with the inner side wall of the outer ring shell (1803), and the electric contact points II (1813) are fixedly connected with the outer side of the chain (1811).

2. The recycling device for blasting sand used for 3D grinding according to claim 1, wherein: the socket that matches with shrouding (14) is seted up to the right side wall of storage shell (11), handle the rear side fixedly connected with motor three of case (1), be located left the rear end of pivot (2) stretch out the rear side wall of handling case (1) and with motor three output fixed connection, be located the right side the rear end of pivot two (5) run through the rear side wall of handling case (1) and with the front output fixed connection of motor two (19).

3. The recycling device for blasting sand used for 3D grinding according to claim 1, wherein: the material guide plate (16) is arranged obliquely, the conveying pipeline (17) penetrates through the rear side wall of the treatment box (1) and is arranged obliquely, the storage box is installed on the rear side wall of the treatment box (1), and one end, penetrating through the rear side wall of the treatment box (1), of the conveying pipeline (17) is located above the storage box.

4. The recycling device for blasting sand used for 3D grinding according to claim 1, wherein: an opening matched with the connecting block (1003) is formed in the fixing plate (1004), the rear end of the reciprocating screw rod (1001) penetrates through the rear side wall of the processing box (1) and is fixedly connected with the output end of the motor I (1013), the guide pillar (1007) is matched with the moving groove (1009), and a sliding opening matched with the moving strip (1005) is formed in the connecting block (1003).

5. The recycling device for blasting sand used for 3D grinding according to claim 1, wherein: the three driven rods (1807) and the driving rod (1806) are arranged on the inner ring shell (1805) at equal intervals, the four electric contact points I (1812) are arranged at equal intervals and correspond to the positions of the driven rods (1807) and the driving rod (1806), and the outer side of the bevel gear I (1802) is meshed with the outer side of the bevel gear II (1810).

6. The recycling device for blasting sand used for 3D grinding according to claim 1, wherein: the outer side of the processing box (1) is provided with a controller, the protective housings (8) are uniformly distributed into four groups, each group of electromagnets (9) is electrically connected with the corresponding first electric contact point (1812), and the controller is electrically connected with the first electric contact point (1812), the second electric contact point (1813) and the electromagnets (9).