Metal casting foundry waste sand recovery unit
Technical Field
The invention relates to the technical field of sand casting, in particular to a metal casting waste sand recycling device.
Background
In the casting process of metal castings, various qualified sand is required to be made into a model, after the sand model is used, waste residues of casting raw materials are added in the sand, the sand cannot be reused to form waste sand, the waste sand is treated, the waste sand is greatly supported by China to be subjected to environment-friendly treatment and recycling, and the waste sand is generally recycled through the steps of crushing, sieving, sand making, grinding, dust collection and the like, so that qualified sand which can be used or discharged secondarily is finally obtained.
The jaw crusher mainly comprises a fixed jaw plate and a movable jaw plate, wherein waste sand is thrown into a crushing channel formed between the fixed jaw plate and the movable jaw plate (the fixed jaw plate and the movable jaw plate are both provided with a wear-resistant layer, the wear-resistant layer is provided with a vertical strip-shaped groove), then the movable jaw plate is driven by an eccentric shaft to perform rapid and reciprocating motion, the movable jaw plate is close to the fixed jaw plate and lifts up and moves away from the fixed jaw plate and moves down, the waste sand is crushed, the crushed waste sand is gradually discharged from the bottom of the crushing channel to enter a subsequent sieving process, the waste sand is crushed only by the movable jaw plate to change the gap of the crushing channel, and the movable jaw plate is used for crushing the waste sand by upward extrusion force applied by the movable jaw plate in the lifting process, so that single piece of waste sand can be crushed effectively only by multiple times of extrusion of the movable jaw plate, the crushing effect is unsatisfactory, the waste sand which is positioned in the crushing channel is not completely crushed in the process of being discharged into the crushing channel, and the problem of blocking in the crushing channel is still caused.
Therefore, we propose a metal casting foundry waste sand recovery device.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides the following technical scheme: the utility model provides a metal casting foundry waste sand recovery unit, includes the shell, the bottom fixed mounting of shell has the supporting leg, the inside top of shell rotates and is connected with the abrasive disc, the middle part fixed mounting of supporting leg has driving motor, driving motor's output fixed mounting has the transfer line, the transfer line runs through to the inside of shell, the top fixed mounting of transfer line has the lower abrasive disc that is located the abrasive disc below, the bottom of going up the abrasive disc and the top frictional contact of lower abrasive disc.
Preferably, one side outside the shell is rotationally connected with the bull stick, the bottom fixed mounting of bull stick has first drive wheel, the lower extreme fixed mounting of transfer line has the double-deck drive wheel that is located the bottom of the shell, first drive wheel passes through first drive belt transmission with double-deck drive wheel and is connected, the top fixed mounting of bull stick has the gear, the outer peripheral face fixed mounting of last abrasive disc has the ring gear, the side and the ring gear meshing that the gear runs through the shell.
Preferably, the middle part of going up the grinding disc has offered crushing chamber, smash the round platform type cavity that the chamber runs through the grinding disc for big end down, the top of shell is integrative to be provided with the feeder hopper, the inside of smashing the chamber is stretched into to the bottom of feeder hopper, the middle part at grinding disc top is integrative to be provided with the grinding awl down, the diameter at grinding awl bottom is the same with the diameter at grinding chamber bottom, the diameter at grinding awl top is less than the diameter at grinding chamber top, the diameter of going up the grinding disc is less than the diameter of grinding disc down, the diameter of grinding disc is less than the internal diameter of shell down.
Preferably, the inside of shell is connected with the fixed baffle that is located the grinding disc below through the set angle bar an organic whole, the inner wall of shell an organic whole is connected with the guide swash plate that is located the fixed baffle below, the inside of shell is provided with the screening subassembly that is located the grinding disc below down, transfer line, last grinding disc, lower grinding disc, fixed baffle and guide swash plate concentric setting, the diameter of fixed baffle and guide swash plate bottom is less than the diameter of grinding disc down, the middle part of fixed baffle runs through with the transfer line and rotates to be connected.
Preferably, the screening assembly comprises a supporting wheel rotationally connected with the top of the fixed partition plate and a circular screen arranged below the material guiding inclined plate, the top of the supporting wheel is in rolling contact with the bottom of the lower grinding disc, a rotating shaft of the supporting wheel is integrally connected with a transmission shaft, the other end of the transmission shaft is rotationally connected with the inner wall of the shell, a connecting frame is fixedly arranged in the middle of the transmission shaft, two sides of the connecting frame are slidably connected with movable blocks through sliding grooves formed in the connecting frame, rotary round rods are arranged between the two movable blocks, and a supporting spring is arranged at the top of the movable blocks.
Preferably, two ends of the rotary round rod are respectively connected with opposite surfaces of the two movable blocks in a rotary mode, the top of the abutting spring is in abutting contact with the top of a sliding groove formed in the connecting frame, and the bottom of the abutting spring is in abutting contact with the top of the movable block.
Preferably, the top an organic whole of circular sieve is connected with the connecting rod, the connecting rod runs through sliding connection with the middle part of guide swash plate, the outside cover of connecting rod is equipped with pushes down the spring, the top an organic whole of connecting rod is provided with movable hook, the bottom of movable hook is the horizontal plane, push down the bottom of spring and the top of circular sieve and support tight contact, push down the top of spring and the bottom of guide swash plate and support tight contact, one side of circular sieve is provided with conveying assembly, the middle part and the transfer line of circular sieve run through rotation and are connected, the diameter of circular sieve is greater than the diameter of guide swash plate bottom, the transfer line is provided with the stopper that is located circular sieve below.
Preferably, the conveying assembly comprises a feeding barrel fixedly mounted on the other side outside the shell and a discharging groove formed in the side face of the circular screen, wherein a feeding groove penetrating through the inside of the shell is integrally formed in the bottom of the side face of the feeding barrel, and the feeding groove is located below the discharging groove.
Preferably, the inside rotation of feeding cylinder is connected with screw blade, screw blade's pivot fixed mounting has the second drive wheel that is located feeding cylinder below, the second drive wheel passes through the second drive belt and is connected with double-deck drive wheel transmission, the top of feeding cylinder side is provided with the spread groove in an organic whole, the other end and the feeder hopper fixed mounting of spread groove.
Preferably, a discharge hole is formed in the bottom of the side face of the shell, a scraper is fixedly mounted on the transmission rod, and the bottom of the scraper is in sliding contact with the bottom inside the shell.
Compared with the prior art, the invention provides a metal casting waste sand recovery device, which has the following beneficial effects:
1. this metal casting foundry waste sand recovery unit carries into crushing chamber through the feeder hopper, grinding disc rotates under the drive of driving motor through the drive of transfer line, simultaneously drive the bull stick through first drive belt and first drive wheel and rotate, the gear at bull stick top drives the grinding disc with the ring gear and carries out reverse rotation, waste sand piece constantly descends along grinding the side of awl under the effect of gravity, constantly grind through grinding awl and crushing intracavity wall and get smashing, waste sand grain after smashing gets into and smashes again between grinding disc and the lower grinding disc, sand grain after smashing is delivered through the discharge gate after passing through the screening of guide swash plate conduction to screening subassembly, solve waste sand crushing effect poor, jam that waste sand pile up the jam that leads to and the jam problem that the crushing effect reduces and lead to.
2. This metal casting foundry waste sand recovery unit, through setting up screening subassembly, along with the rotation of lower grinding disc, make the supporting wheel rotate, and then drive the transmission shaft and rotate, and then make the connecting piece drive movable block and rotate the round bar and rotate, rotate the round bar and rotate to the below back of movable hook, drive movable hook and connecting rod along with rotating and upwards promote, and lift up the circular sieve, rotate the round bar along with the transmission shaft rotate behind the certain angle with movable hook pine take off, make the circular sieve carry out reciprocating up-and-down activity under the effect of pushing down the spring, sieve the waste sand grain after the grinding.
3. According to the metal casting waste sand recycling device, through the arrangement of the conveying component, unqualified waste sand grains in the circular screen are conveyed into the feed chute through the discharge chute, and conveyed to the connecting chute through the propeller blade driven by the second driving belt and the second driving wheel, and conveyed to the feed hopper again through the connecting chute for secondary grinding.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the whole structure of the present invention;
FIG. 3 is a schematic view of a rotary rod according to the present invention;
FIG. 4 is a schematic view of the structure of the lower and upper polishing plates of the present invention;
FIG. 5 is a schematic view of the structure of the lower polishing plate of the present invention;
FIG. 6 is a schematic view of the structure of the upper polishing plate of the present invention;
FIG. 7 is a schematic view of the structure of the guide inclined plate and the fixed partition plate of the invention;
FIG. 8 is an enlarged view of FIG. 7A in accordance with the present invention;
FIG. 9 is a schematic view of the circular screen of the present invention;
FIG. 10 is an enlarged view of the invention at B in FIG. 9;
fig. 11 is a schematic structural view of the conveying assembly of the present invention.
In the figure: 1. a housing; 2. support legs; 3. a driving motor; 4. a transmission rod; 5. a lower grinding disc; 6. a grinding disc is arranged; 7. a crushing cavity; 8. a toothed ring; 9. grinding the cone; 10. a rotating rod; 11. a double-layer driving wheel; 12. a first belt; 13. a first driving wheel; 14. a gear; 15. a feed hopper; 16. a discharge port; 17. a screen assembly; 171. a circular screen; 172. a support wheel; 173. a connecting rod; 174. pressing down the spring; 175. a movable hook; 176. a transmission shaft; 177. a connecting frame; 178. a movable block; 179. rotating the round rod; 1710. a spring is abutted tightly; 18. a transport assembly; 181. a feeding cylinder; 182. propeller blades; 183. a second driving wheel; 184. a second belt; 185. a feed chute; 186. a discharge chute; 187. a connecting groove; 19. a material guiding sloping plate; 20. fixing the partition board; 21. a scraper.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 11, a metal casting foundry waste sand recovery device comprises a housing 1, wherein a supporting leg 2 is fixedly installed at the bottom of the housing 1, an upper grinding disc 6 is rotatably connected at the top of the interior of the housing 1, a driving motor 3 is fixedly installed at the middle part of the supporting leg 2, a transmission rod 4 is fixedly installed at the output end of the driving motor 3, the transmission rod 4 penetrates into the interior of the housing 1, a lower grinding disc 5 positioned below the upper grinding disc 6 is fixedly installed at the top of the transmission rod 4, and the bottom of the upper grinding disc 6 is in friction contact with the top of the lower grinding disc 5.
As one implementation mode of the invention, one side of the outer part of the shell 1 is rotatably connected with a rotating rod 10, the bottom of the rotating rod 10 is fixedly provided with a first driving wheel 13, the lower end of the driving rod 4 is fixedly provided with a double-layer driving wheel 11 positioned below the bottom of the shell 1, the first driving wheel 13 is in driving connection with the double-layer driving wheel 11 through a first driving belt 12, the top of the rotating rod 10 is fixedly provided with a gear 14, the outer circumferential surface of the upper grinding disc 6 is fixedly provided with a toothed ring 8, and the gear 14 penetrates through the side surface of the shell 1 to be meshed with the toothed ring 8.
As one implementation mode of the invention, the middle part of the upper grinding disc 6 is provided with the grinding cavity 7, the grinding cavity 7 is a round table type cavity which penetrates the upper grinding disc 6 from the lower part to the upper part, the top of the shell 1 is integrally provided with the feed hopper 15, the bottom of the feed hopper 15 stretches into the interior of the grinding cavity 7, the middle part of the top of the lower grinding disc 5 is integrally provided with the grinding cone 9, the diameter of the bottom of the grinding cone 9 is the same as the diameter of the bottom of the grinding cavity 7, the diameter of the top of the grinding cone 9 is smaller than the diameter of the top of the grinding cavity 7, the diameter of the upper grinding disc 6 is smaller than the diameter of the lower grinding disc 5, the diameter of the lower grinding disc 5 is smaller than the inner diameter of the shell 1, waste sand is conveyed into the grinding cavity 7 through the feed hopper 15, the waste sand is driven by the drive motor 3 to rotate through the lower grinding disc 5, meanwhile, the first drive belt 12 and the first drive wheel 13 drive the rotary rod 10 to rotate, the gear 14 at the top of the rotary rod 10 and the toothed ring 8 drive the upper grinding disc 6 to reversely rotate, the waste sand blocks continuously descend along the side of the grinding cone 9 under the action of gravity, the diameter of the grinding cone 9 is smaller than the diameter of the top of the grinding cone 7, the diameter of the grinding disc is smaller than the diameter of the top of the grinding disc 7, the diameter of the grinding disc 6 is smaller than the inner wall of the grinding disc, the waste sand blocks is crushed sand blocks, the waste sand blocks are crushed and the waste sand blocks are crushed through the grinding disc and the waste sand blocks, and the waste sand blocks are crushed through the grinding blocks, and the waste sand blocks are discharged through the grinding disc 17, and the grinding material after the grinding assembly, and the waste sand are crushed particles are crushed through the grinding assembly, and the grinding particles, and the waste sand is discharged through the grinding assembly, and the grinding material is discharged through the grinding assembly.
As an embodiment of the invention, a fixed baffle 20 positioned below a lower grinding disc 5 is integrally connected to the inside of a shell 1 through a triangular iron, a material guiding inclined plate 19 positioned below the fixed baffle 20 is integrally connected to the inner wall of the shell 1, a screening component 17 positioned below the lower grinding disc 5 is arranged in the inside of the shell 1, a transmission rod 4, an upper grinding disc 6, the lower grinding disc 5, the fixed baffle 20 and the material guiding inclined plate 19 are concentrically arranged, the diameters of the bottoms of the fixed baffle 20 and the material guiding inclined plate 19 are smaller than the diameter of the lower grinding disc 5, and the middle part of the fixed baffle 20 is in penetrating and rotating connection with the transmission rod 4.
As an embodiment of the present invention, the screening assembly 17 includes a supporting wheel 172 rotatably connected to the top of the fixed partition 20, and a circular screen 171 located below the guiding inclined plate 19, the top of the supporting wheel 172 is in rolling contact with the bottom of the lower grinding disc 5, a rotation shaft of the supporting wheel 172 is integrally connected with a transmission shaft 176, the other end of the transmission shaft 176 is rotatably connected to the inner wall of the housing 1, a connecting frame 177 is fixedly installed in the middle of the transmission shaft 176, two sides of the connecting frame 177 are slidably connected with movable blocks 178 through opened sliding grooves, a rotating circular rod 179 is disposed between the two movable blocks 178, and a supporting spring 1710 is disposed at the top of the movable blocks 178.
As an embodiment of the present invention, two ends of the rotary round bar 179 are respectively connected with opposite surfaces of the two movable blocks 178 in a rotary manner, the top of the abutting spring 1710 is in abutting contact with the top of the chute formed by the connecting frame 177, and the bottom of the abutting spring 1710 is in abutting contact with the top of the movable block 178.
As one embodiment of the invention, the top of the circular screen 171 is integrally connected with the connecting rod 173, the connecting rod 173 and the middle part of the guiding inclined plate 19 are connected in a penetrating and sliding manner, the outer part of the connecting rod 173 is sleeved with the pressing spring 174, the top of the connecting rod 173 is integrally provided with the movable hook 175, the bottom of the movable hook 175 is a horizontal plane, the bottom of the pressing spring 174 is in abutting contact with the top of the circular screen 171, the top of the pressing spring 174 is in abutting contact with the bottom of the guiding inclined plate 19, one side of the circular screen 171 is provided with the conveying component 18, the middle part of the circular screen 171 is connected with the driving rod 4 in a penetrating and rotating manner, the diameter of the circular screen 171 is larger than the diameter of the bottom of the guiding inclined plate 19, the driving rod 4 is provided with the limiting block positioned below the circular screen 171, the screening component 17 is arranged, the supporting wheel 172 rotates along with the rotation of the lower grinding disc 5, the driving shaft 176 rotates, the connecting piece drives the movable block 178 and the rotating circular rod 179 to rotate, the rotating circular rod 179 rotates to the lower part of the movable hook 175, the movable hook 175 and the connecting rod 173 lifts up along with the rotation, the circular screen 171 is lifted up along with the rotation of the rotating rod 179, the rotating rod 179 is pushed down to the movable hook 175, and the circular screen is ground down to the movable hook 175 under the action of the circular screen, and the waste sand is removed.
As an embodiment of the present invention, the conveying assembly 18 includes a feeding cylinder 181 fixedly installed at the other side of the outside of the casing 1, and a discharging chute 186 opened at the side of the circular screen 171, and a feeding chute 185 penetrating into the inside of the casing 1 is integrally provided at the bottom of the side of the feeding cylinder 181, and the feeding chute 185 is located below the discharging chute 186.
As one embodiment of the invention, a propeller blade 182 is rotatably connected in the feeding cylinder 181, a second driving wheel 183 positioned below the feeding cylinder 181 is fixedly arranged on a rotating shaft of the propeller blade 182, the second driving wheel 183 is in driving connection with the double-layer driving wheel 11 through a second driving belt 184, a connecting groove 187 is integrally arranged at the top of the side surface of the feeding cylinder 181, the other end of the connecting groove 187 is fixedly arranged with the feeding hopper 15, through the arrangement of the conveying assembly 18, unqualified waste sand particles in the circular screen 171 are conveyed into the feeding groove 185 through the discharging groove 186, conveyed to the connecting groove 187 through the propeller blade 182 driven by the second driving belt 184 and the second driving wheel 183, and conveyed to the feeding hopper 15 again through the connecting groove 187 for secondary grinding.
As an embodiment of the invention, a discharge port 16 is arranged at the bottom of the side surface of the shell 1, a scraper 21 is fixedly arranged on the transmission rod 4, and the bottom of the scraper 21 is in sliding contact with the bottom of the interior of the shell 1.
During use, waste sand is conveyed into the crushing cavity 7 through the feed hopper 15, the grinding disc 5 is driven to rotate by the driving motor 3 through the driving rod 4, meanwhile, the rotary rod 10 is driven to rotate by the first driving belt 12 and the first driving wheel 13, the gear 14 at the top of the rotary rod 10 and the toothed ring 8 drive the upper grinding disc 6 to reversely rotate, the waste sand continuously descends along the side face of the grinding cone 9 under the action of gravity, the crushed waste sand continuously grinds through the grinding cone 9 and the inner wall of the crushing cavity 7, the crushed waste sand enters between the upper grinding disc 6 and the lower grinding disc 5 to be crushed again, the crushed sand is transmitted to the screening assembly 17 through the material guiding inclined plate 19, the supporting wheel 172 is rotated along with the rotation of the lower grinding disc 5, and the transmission shaft 176 is further driven to rotate, and then the connecting piece drives the movable block 178 and the rotary round rod 179 to rotate, after the rotary round rod 179 rotates to the lower part of the movable hook 175, the movable hook 175 and the connecting rod 173 are driven to be lifted upwards along with the rotation, the rotary round rod 179 is loosened with the movable hook 175 after the transmission shaft 176 rotates to a certain angle, the round sieve 171 moves up and down in a reciprocating manner under the action of the downward spring 174, the ground waste sand particles are screened, qualified sand particles are sent out through the discharge hole 16, unqualified waste sand particles in the round sieve 171 are conveyed into the feeding groove 185 through the discharge groove 186, and then conveyed to the connecting groove 187 through the screw blade 182 driven by the second transmission belt 184 and the second transmission wheel 183, and conveyed to the feed hopper 15 again through the connecting groove 187 for grinding again.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.