CN115647285B

CN115647285B - Waste sand grinding treatment device

Info

Publication number: CN115647285B
Application number: CN202211682027.4A
Authority: CN
Inventors: 廖朝宗; 徐恒国
Original assignee: Liujing Machinery Equipment Liyang Co ltd
Current assignee: Liujing Machinery Equipment Liyang Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-03-10
Anticipated expiration: 2042-12-27
Also published as: CN115647285A

Abstract

The invention relates to the field of waste sand grinding, in particular to a waste sand grinding treatment device which comprises a bottom plate, a blanking bin, a magnetic suction frame, a bundling bin, a grinding cylinder, a rotating disc, a grinding roller, a grinding motor, a bevel gear and supporting legs, wherein the blanking bin is arranged on the bottom plate; the invention solves the problem that the traditional grinding mode is difficult to eliminate the negative influence caused by iron particles doped in the casting sand in the process of waste sand grinding operation, increases the loss degree of grinding equipment, solves the problem that the casting sand in a stacking state is difficult to carry and convey in the grinding process, and increases the probability of stacking and secondary bonding agglomeration of the casting sand; the problem of be difficult to promote to make the mutual flow of foundry sand and collision friction ability, reduced the position exchange ability between the different thickness aspect foundry sand under the state of piling up, reduced grinding efficiency and grinding effect is solved.

Description

Waste sand grinding treatment device

Technical Field

The invention relates to the field of waste sand grinding, in particular to a waste sand grinding treatment device.

Background

Sand casting refers to a casting process that produces a casting in a sand mold. Steel, iron and most nonferrous alloys are cast by sand casting. Because the molding material used for sand casting is cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and can adapt to single-piece production, batch production and mass production of castings, the method is always a basic process in casting production for a long time;

the basic raw materials for making sand molds are foundry sand and a sand binder. The most commonly used foundry sand is siliceous sand. In order to make the sand molds and cores with certain strength and without deformation or damage during handling, molding and pouring of liquid metal, a sand binder is generally added to the casting to bind the loose sand particles together to form the molding sand.

After sand casting is finished, the casting sand needs to be stripped from the surface of a casting, the stripped casting sand is waste sand, the waste sand is crushed, screened, ground, burned, cooled and the like, so that the waste sand can be changed into reusable 'new sand', the regenerated 'new sand' is low in ignition decrement, low in gas generation and lower in expansion coefficient, the qualified rate of the casting can be improved, and the production cost of a foundry is reduced. Simultaneously, the new sand quantity can be reduced by a wide margin in the recycling of useless sand, practice thrift the commodity circulation cost, useless sand is after preliminary broken completion, for reducing the content of binder in the useless sand, need grind the processing to useless sand before incineration disposal, reduce the bonding strength between useless sand and the binder and the self particle size of useless sand, promote the clean degree of burning efficiency and the useless sand after burning, and at the in-process that carries out useless sand grinding operation, often can have following problem:

(1) In the process of grinding the waste sand, the traditional grinding mode is difficult to eliminate the negative influence caused by iron particles doped in the casting sand, the loss degree of grinding equipment is increased, the casting sand in a stacking state is difficult to carry and convey in the grinding process, the probability of stacking and secondary bonding agglomeration of the casting sand is increased, and the grinding efficiency is reduced;

(2) The traditional grinding mode is difficult to promote and makes the mutual flow and collision friction ability of foundry sand, has reduced the position exchange ability between the different thickness aspect foundry sand under the state of piling up, has reduced the distribution area and the dispersed state of foundry sand lump, has also reduced grinding efficiency and grinding effect.

Disclosure of Invention

The invention provides a waste sand grinding treatment device, which aims to solve the technical problems that in the waste sand grinding operation process, the loss of grinding equipment is increased due to the influence of iron particles doped in waste sand, and in the casting sand grinding process, the position exchange capacity between casting sand layers with different thicknesses in a stacking state is difficult to increase, so that the casting sand is stacked and secondarily bonded and agglomerated.

The invention adopts the following technical scheme: a waste sand grinding device comprises a bottom plate, a blanking bin, a magnetic suction frame, a bundling bin, a grinding cylinder, a rotating disc, a grinding roller, a grinding motor, a bevel gear and supporting legs, wherein the supporting legs are uniformly arranged on the lower end face of the bottom plate;

grind the roller including grinding roller and No. two grinding rollers, grinding roller and No. two grinding roller interval installations, grinding roller and No. two grinding roller center axis position height equals and the outline diameter of grinding roller is less than the outline diameter of grinding roller No. two, the circumference outer wall of No. two grinding rollers has all seted up the transport groove along its circumference, the notch lateral wall of transport groove is evenly pegged graft along the central axis direction of grinding roller No. two and is had to roll the tooth

Preferably, the bottom of the notch of the conveying groove is of an arc-shaped structure, the side wall of the top of the notch of the conveying groove is outwards expanded along the tangential direction of the arc at the bottom of the notch, the included angle between the side walls of the two sides of the top of the notch of the conveying groove is an acute angle, the rolling teeth are respectively installed on the side walls of the two sides of the notch of the top of the conveying groove, and the end part of the rolling teeth is away from the vertical distance between the central axes of the two grinding rollers and is equal to the radius of the two grinding rollers.

Preferably, no. two grinding roll inboards seted up the cavity, bevel gear's middle part is seted up the groove that runs through that is linked together with No. two grinding roll inboard cavities, the middle part fixed mounting of abrasive disc has the trachea, tracheal one end is linked together with current air pump, the tracheal other end runs through the groove that runs through at bevel gear middle part and extends to No. two grinding roll's inboard cavity, tracheal tip fixed mounting has a sealed cylinder, the outer wall of sealed cylinder supports through normal running fit's mode and leans on No. two grinding roll's cavity inner wall, the gas vent has evenly been seted up along its central axis direction in the circular arc notch bottom in transport groove, and the lateral wall sealing fit of gas vent and sealed cylinder, fan-shaped exhaust storehouse has been seted up to one side of sealed cylinder, exhaust storehouse is close to No. two grinding roll's first section and exhaust storehouse and gas vent and is linked together.

Preferably, the rolling disc upper end circumference outer wall evenly install the meshing tooth along its circumference, the lateral wall of grinding vessel passes through motor cabinet fixed mounting and arranges the material motor, the output shaft fixed mounting who arranges the material motor arranges the material gear, and arrange material gear and meshing tooth meshing transmission, the upper end of rolling disc has evenly seted up along its circumference and has scraped the silo, scrape all install through sliding fit's mode in the silo and scrape the flitch, it all is connected with the rolling disc through scraping the material spring to scrape the flitch, it is located the top of a grinding roll and No. two grinding rolls respectively to scrape the flitch, the lower extreme of scraping the flitch is evenly pegged graft and is had the scraping pole, the lower extreme of scraping the material pole supports the outer wall that supports No. one grinding roll and No. two grinding rolls, the middle part fixed mounting who scrapes the flitch has the propelling movement axle, the upper end of grinding vessel evenly installs the set-square along its circumference, and the propelling movement axle supports and leans on the lateral wall at the set-square through sliding fit's.

Preferably, the included angle between the lower end of the scraping rod and the central axis of the first grinding roller and the central axis of the second grinding roller is an acute angle.

Preferably, the rolling disc middle part evenly seted up the unloading cavity along its circumference, a grinding roller all is located the unloading cavity with No. two grinding rollers, the flow distribution disc is installed through normal running fit's mode in the bottom in the storehouse of closing up, the lower silo that is linked together with the unloading cavity is evenly seted up all around to the quotation of flow distribution disc, the montant is evenly installed along its circumference in the upper end of rolling disc, the montant runs through the upper end of flow distribution disc and montant and supports the bottom that leans on at the magnetic suction frame through sliding fit's mode.

Preferably, the abrasive disc on install through sliding fit's mode and arrange the flitch, arrange flitch and abrasive disc seal fit, the lateral wall fixed mounting of blanking storehouse has row material cylinder, and the output shaft of arranging the material cylinder is connected with row flitch.

Preferably, rolling disc lower extreme outer wall evenly install the horizontal pole along its circumference, the horizontal pole is located between grinding roller and No. two grinding rollers, and installs a plurality of frames of strikeing through normal running fit's mode slope along its central axis direction on the horizontal pole, it all is connected with the horizontal pole through the torsional spring to strike the frame, the ball-shaped piece is all installed to the up end of grinding disc and the up end of arranging the flitch, the one end of striking the frame is passed through sliding fit's mode and is contacted with ball-shaped piece, the other end fixed mounting who strikes the frame has the board of strikeing.

Preferably, strike the board all slope and install the tip at knocking the frame, strike the contained angle between board and the horizontal pole central axis and be the acute angle, and the contained angle between the adjacent board of striking is the obtuse angle, strike the lower terminal surface of board and evenly install and strike the tooth, and two adjacent lengths that strike the tooth are misplaced mutually.

Preferably, the magnetism inhale the frame still including the oscillating plate, the conical plate, the oscillating axle, oscillating spring, the oscillating rod, net and dead lever are inhaled to magnetism, the oscillating plate is installed through sliding fit's mode in the upper end middle part of blanking storehouse, the upper end fixed mounting of oscillating plate has most advanced ascending conical plate, the both sides of oscillating plate all are provided with cylindrical curved surface, and install the oscillating axle through normal running fit's mode on the cylindrical curved surface of oscillating plate, one side of oscillating shaft is connected with the conical plate through oscillating spring, the net is inhaled to the opposite side movable mounting of oscillating shaft magnetism, two sets of dead levers are installed to blanking storehouse's upper end both sides, two sets of dead levers inhale the net one-to-one with two magnetism, and the same group's dead lever is located same upper and lower both sides of inhaling the net respectively, the lower extreme fixed mounting of oscillating plate has the oscillating rod, the lower extreme of oscillating rod is provided with arc curved surface and the upper end of montant and supports and leans on the arc curved surface through sliding fit's mode.

The invention has the beneficial effects that:

(1) According to the waste sand grinding treatment device, the magnetic attraction effect of the magnetic attraction net can be used for adsorbing iron particles doped in casting sand, the falling rate of the casting sand can be limited by freely vibrating the magnetic attraction net in a preset range, the adsorption strength and the adsorption rate of the magnetic attraction net on the iron particles doped in the casting sand can be improved, and the load and the loss of a grinding roller in the subsequent grinding operation process can be reduced through the adsorption and discharge operation of the iron particles.

(2) According to the waste sand grinding treatment device, the row-shaped rolling teeth which are obliquely arranged can extrude and crush the casting sand in the process of carrying the casting sand by the carrying groove, the casting sand is filled and discharged by the carrying groove, the uniformity of the thickness of the casting sand accumulated on two sides of the grinding roller can be improved, meanwhile, the flowing capacity in the process of crushing and grinding the casting sand can be improved through the blowing action of air flow, and the probability of agglomeration or blocking of the casting sand is reduced.

(3) According to the waste sand grinding treatment device, the casting sand adhered to the outer wall of the grinding roller can be scraped and cleaned through the transverse movement of the scraping rod, the effective conveying volume and conveying efficiency of the conveying groove to the casting sand can be improved by matching with the blowing action of the exhaust port, the concave-convex degree of the casting sand accumulation at the upper end of the grinding disc is reduced, the casting sand in a flat state can be turned up in a strip shape through the circumferential rotation of the knocking frame, the casting sand pressed and pressed in a flat state is turned up again in a loose state, the casting sand cluster adhered to the upper end face of the grinding disc can be broken and turned out upwards by matching with the inserting action of the knocking teeth, the friction effect between the casting sand and the casting sand is improved, the broken casting sand is separated from the adhering part, the distribution area and the dispersion state of the casting sand cluster on the grinding disc are improved, and the grinding efficiency and the grinding effect of the grinding roller to the casting sand are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an overall structure of a waste sand grinding apparatus according to a preferred embodiment of the present invention;

FIG. 2 is a schematic front view (looking from front to back) of FIG. 1 of the present invention;

FIG. 3 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is an enlarged view of the invention at B of FIG. 3;

FIG. 5 is a schematic view showing the relationship among the magnetic rack, the collecting bin and the grinding cylinder;

FIG. 6 is an enlarged view at C of FIG. 5 according to the present invention;

FIG. 7 is a schematic view showing the positional relationship among the scraping plate, the pushing shaft and the triangle;

FIG. 8 is an enlarged view taken at D of FIG. 7 in accordance with the present invention;

FIG. 9 is a schematic view showing the positional relationship among the rotary disk, the grinding roller and the scraping bar according to the present invention;

FIG. 10 is a schematic view of the relationship between the second grinding roller and the knocking frame according to the present invention;

FIG. 11 is a schematic view showing the positional relationship between the polishing roll and the polishing disk according to the present invention;

FIG. 12 is an enlarged view at E of FIG. 11 in accordance with the present invention;

in the figure: 1. a base plate; 2. a blanking bin; 3. a magnetic rack; 4. a bundling bin; 5. a grinding cylinder; 6. rotating the disc; 7. a grinding disk; 8. a grinding roller; 9. grinding the motor; 10. a bevel gear; 11. supporting legs; 81. a first grinding roller; 82. a second grinding roller; 821. a carrying groove; 822. grinding teeth; 71. an air tube; 711. a sealing cylinder; 823. an exhaust port; 61. meshing teeth; 51. a discharge motor; 511. a discharge gear; 62. a material scraping groove; 621. a scraping plate; 623. a scraping rod; 622. a scraping spring; 624. a push shaft; 52. a set square; 63. a blanking cavity; 41. a diverter tray; 411. a discharging groove; 64. a vertical rod; 73. a discharge plate; 21. a discharge cylinder; 65. a cross bar; 651. a knocking frame; 652. a torsion spring; 653. knocking the plate; 72. a spherical block; 22. an oscillating plate; 23. a tapered plate; 24. a swing shaft; 25. an oscillating spring; 26. an oscillating rod; 27. a magnetic net; 28. and (5) fixing the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2 and 3, an embodiment of the invention relates to a waste sand grinding treatment device, which comprises a bottom plate 1, a blanking bin 2, a magnetic suction frame 3, a collecting bin 4, a grinding cylinder 5, a rotating disc 6, a grinding disc 7, a grinding roller 8, a grinding motor 9, a bevel gear 10 and supporting legs 11, wherein the supporting legs 11 are uniformly arranged on the lower end surface of the bottom plate 1, the blanking bin 2 is fixedly arranged on the upper end surface of the bottom plate 1, the collecting bin 4 is fixedly arranged on the inner side of the blanking bin 2, the collecting bin 4 is of a horn mouth structure with a downward tip, the grinding cylinder 5 is jointly arranged on the lower end part of the collecting bin 4 and the middle part of the bottom plate 1, the blanking bin 2, the collecting bin 4 and the grinding cylinder 5 are all in a communicated state, the grinding disc 7 is fixedly arranged on the lower end of the grinding cylinder 5, arrange flitch 73 through sliding fit's mode installation on the abrasive disc 7, arrange flitch 73 and abrasive disc 7 seal fit, blanking storehouse 2's lateral wall fixed mounting has row material cylinder 21, and arrange the output shaft of material cylinder 21 and arrange flitch 73 and be connected, rotating-disc 6 is installed jointly through the mode of sliding fit in the upper end and the middle part of grinding vessel 5, grinding roll 8 is evenly installed through the mode of rotating fit along its circumference to the lower extreme of rotating-disc 6, there is grinding motor 9 in the upper end inboard of rotating-disc 6 through motor cabinet fixed mounting, and bevel gear 10 is all installed to grinding motor 9's output shaft and grinding roll 8's tip, and bevel gear 10 meshes the transmission on grinding roll 8 with the bevel gear 10 on the grinding motor 9, blanking storehouse 2's upper end is installed magnetism and is inhaled frame 3 through sliding fit's mode.

During the concrete work, at first, the discharging cylinder 21 is started to work, the discharging plate 73 is pushed by the discharging cylinder 21 to move, so that the discharging plate 73 completes the plugging operation on the bottom of the grinding disc 7, then, casting sand to be ground is poured into along an opening at the upper end of the blanking bin 2 through workers or existing conveying equipment, then, the casting sand falls downwards under the action of gravity, the casting sand further passes through the magnetic suction frame 3 in the falling process, at the moment, a small amount of iron particles doped in the casting sand can be adsorbed through the magnetic suction effect of the magnetic suction frame 3, the casting sand passing through the position of the magnetic suction frame 3 further falls downwards under the action of gravity, and enters the grinding cylinder 5 after passing through the collection bin 4, and is piled up on the grinding disc 7 after passing through the rotating disc 6, then, the grinding motor 9 is started to operate, the bevel gear 10 connected with the grinding motor 9 is driven to rotate through the meshing transmission between the bevel gears 10, the grinding rollers 8 arranged in the circumferential direction are driven to synchronously rotate, and the grinding operation of the grinding rollers 8 and the aggregate of the casting sand is completed through the rotation.

As an embodiment of the present invention, as shown in fig. 3, 5 and 6, the magnetic suction frame 3 further includes an oscillating plate 22, a conical plate 23, an oscillating shaft 24, an oscillating spring 25, an oscillating rod 26, a magnetic suction net 27 and fixing rods 28, the oscillating plate 22 is installed in the middle of the upper end of the blanking chamber 2 in a sliding fit manner, the conical plate 23 with an upward tip end is fixedly installed at the upper end of the oscillating plate 22, cylindrical curved surfaces are respectively installed at both sides of the oscillating plate 22, the oscillating shaft 24 is installed on the cylindrical curved surface of the oscillating plate 22 in a rotating fit manner, one side of the oscillating shaft 24 is connected with the conical plate 23 through the oscillating spring 25, the magnetic suction net 27 is movably installed at the other side of the oscillating shaft 24, two sets of fixing rods 28 are installed at both sides of the upper end of the blanking chamber 2, the two sets of fixing rods 28 are in one-to-one correspondence with the two magnetic suction nets 27, the fixing rods 28 are respectively located at both upper and lower sides of the same magnetic suction net 27, the lower end of the oscillating plate 22 is fixedly installed with the oscillating rod 26, an arc curved surface is installed at the lower end of the oscillating plate 26, an arc-shaped curved surface is evenly installed at the middle of the rotating disc 6 along the circumference, a cavity 63 is evenly provided with a cavity 81, a distribution groove 64 for evenly supporting the upper end of the oscillating roller 41 of the grinding roller 4, and a distribution plate 41, the upper end of the oscillating plate 41, the oscillating plate 4, the distributing groove 41, the distributing groove 64 is provided with a distribution plate 41, and evenly matched with a distribution groove 64, the distributing groove 64, which is provided in the distributing groove 64, which is provided in a distribution groove, which is provided in a way.

In operation, at the initial position, the magnetic net 27 is movably mounted on the swing shaft 24, and at this time, under the action of the elastic support and traction of the oscillating spring 25, the magnetic suction net 27 is in a horizontal state, and then, in the process of the free falling of the casting sand under the action of gravity, after the casting sand reaches the position of the conical plate 23, the casting sand starts to gradually slide down to the magnetic suction nets 27 at the two sides of the oscillating plate 22 under the separation and guide action of the inclined surface at the upper end of the conical plate 23, under the gravity of the casting sand, the oscillation plate 22 is located at the lowermost position in the movable space thereof, under the impact of the casting sand and the elastic connection of the oscillating spring 25, the magnetic net 27 and the oscillating shaft 24 start to synchronously oscillate back and forth around the axis of the cylindrical curved surface at the end of the oscillating plate 22, the speed of the casting sand passing through the meshes of the magnetic suction net 27 can be accelerated by the reciprocating swing of the magnetic suction net 27, the adsorption of iron particles doped in the casting sand can be completed through the magnetic attraction effect of the magnetic attraction net 27, the arranged fixed rod 28 can limit the swing amplitude of the magnetic attraction net 27, the falling rate of the casting sand is further limited, the reduction of the adsorption rate of the iron particles caused by the over-high passing rate of the casting sand in the magnetic attraction net 27 is avoided, when the casting sand after the impurity removal is finished falls to the bottom position of the collecting bin 4, the accumulation is formed on the upper end surface of the flow distribution plate 41, and gradually passes through the discharging chute 411 to enter the discharging cavity 63 on the rotating disc 6, and then, part of the small-volume casting sand directly passes through the area where the grinding roller number one 81 or the grinding roller number two 82 is located, and finally reaches the upper end surface of the grinding disk 7, and the remaining part of the casting sand starts to form a pile on the grinding roller number one 81 or the grinding roller number two 82 and gradually forms a filling of the blanking cavity 63.

As an embodiment of the present invention, as shown in fig. 9 to 12, the grinding roller 8 includes a first grinding roller 81 and a second grinding roller 82, the first grinding roller 81 and the second grinding roller 82 are installed at an interval, the first grinding roller 81 and the second grinding roller 82 have the same central axis position height, the outer contour diameter of the first grinding roller 81 is smaller than the outer contour diameter of the second grinding roller 82, the circumferential outer wall of the second grinding roller 82 is provided with a conveying groove 821 along the circumferential direction, the notch side walls of the conveying groove 821 are uniformly inserted with rolling teeth 822 along the central axis direction of the second grinding roller 82, the bottom of the notch of the conveying groove 821 is an arc-shaped structure, the notch top side wall of the conveying groove 821 is outwardly expanded along the tangential direction of the bottom arc, the included angle between the two side walls of the notch top of the conveying groove 821 is an acute angle, the rolling teeth 822 are respectively installed on the two side walls of the notch of the conveying groove 821, and the vertical distance between the end of the rolling teeth 822 and the central axis of the second grinding roller 82 is equal to the radius of the second grinding roller 82.

During the operation, during the operation of the grinding motor 9, the first grinding roller 81 and the second grinding roller 82 rotate synchronously, then, the casting sand accumulated in the blanking cavity 63 reaches the upper end surface of the grinding disc 7 through the rotation action of the first grinding roller 81 or the second grinding roller 82, and during the rotation of the first grinding roller 81 and the second grinding roller 82, part of the casting sand particles are crushed directly by the pressing action between the first grinding roller 81 or the second grinding roller 82 and the inner wall of the blanking cavity 63, during the rotation of the second grinding roller 82, because the conveying groove 821 is arranged in a concave manner, the casting sand particles gradually accumulate at the notch position of the conveying groove 821 during the sliding down process in the blanking cavity 63, two rows of rolling teeth 822 arranged at the notch position of the conveying groove 821 can support the bottom of the casting sand, then, when the conveying groove 821 reaches the side wall position of the blanking cavity 63 or the upper end surface position of the grinding disc 7 along with the rotation of the second grinding roller 82, the casting sand particles are crushed by the rolling teeth 821, and then, when the conveying groove 821 rotates along with the rotation of the second grinding roller 82, the casting sand particles gradually pass through the conveying groove 821, and then the conveying groove 821, the conveying groove 822, the grinding teeth penetrate through the conveying groove 821, and then the conveying groove 82, and the grinding particles are crushed continuously and then, the conveying groove 82.

As an embodiment of the present invention, as shown in fig. 3, 11 and 12, a cavity is formed inside the second grinding roller 82, a through groove communicated with the cavity inside the second grinding roller 82 is formed in the middle of the bevel gear 10, an air pipe 71 is fixedly mounted in the middle of the grinding disc 7, one end of the air pipe 71 is communicated with an existing air pump, the other end of the air pipe 71 penetrates through the through groove in the middle of the bevel gear 10 and extends into the cavity inside the second grinding roller 82, a sealing cylinder 711 is fixedly mounted at an end of the air pipe 71, an outer wall of the sealing cylinder 711 abuts against an inner wall of the cavity of the second grinding roller 82 in a rotation fit manner, exhaust ports 823 are uniformly formed at the bottom of an arc notch of the carrying groove 821 along the central axis direction of the circular notch 711, the exhaust ports 823 are in sealing fit with a side wall of the sealing cylinder 711, a fan-shaped exhaust chamber is formed at one side of the sealing cylinder 823, the exhaust chamber is close to the upper half section of the second grinding roller 82, and is communicated with the exhaust ports.

During the concrete operation, in the process of cast sand crushing and grinding operation of the second grinding roller 82, the air outlet 823 in the conveying groove 821 within the preset range can be blocked through the sliding rolling contact between the outer wall of the sealing cylinder 711 and the inner wall of the second grinding roller 82, so that the cast sand cannot enter the second grinding roller 82 while forming accumulation in the conveying groove 821, then the existing air pump is started to operate, air is introduced into the air pipe 71 through the air pump, the introduced air reaches the inside of the sealing cylinder 711 under the guiding and conveying action of the air pipe 71, then the air flow fills the inside of the second grinding roller 82 at the position of the fan-shaped air outlet bin, and finally is discharged to the outside through the air outlet 823 at the upper half section of the second grinding roller 82, the casting sand accumulated in the conveying groove 821 can be blown out through the blowing action of the airflow, so that the conveying groove 821 can continuously perform the filling and discharging operation of the casting sand in the process of rotating along the circumferential direction of the second grinding roller 82, the crushing operation of large-volume casting sand particles is completed through the rolling teeth 822 in the process, the filling and discharging operation of the casting sand is performed through the conveying groove 821, the uniformity of the thickness of the casting sand accumulated on the two sides of the second grinding roller 82 can be improved, meanwhile, the air flow inside the blanking cavity 63 can be accelerated through the blowing action of the airflow, the casting sand in the blanking cavity 63 can be vibrated through the blowing action of the airflow, and the probability of the blocking of the casting sand is reduced.

As an embodiment of the present invention, as shown in fig. 4, 5, 7, 8, 10 and 12, the engaging teeth 61 are uniformly installed on the outer circumferential wall of the upper end of the rotating disc 6 along the circumferential direction thereof, the discharging motor 51 is fixedly installed on the side wall of the grinding cylinder 5 through the motor base, the discharging gear 511 is fixedly installed on the output shaft of the discharging motor 51, the discharging gear 511 is in meshing transmission with the engaging teeth 61, the upper end of the rotating disc 6 is uniformly provided with the scraping grooves 62 along the circumferential direction thereof, the scraping plates 621 are installed in the scraping grooves 62 in a sliding fit manner, the scraping plates 621 are connected with the rotating disc 6 through the scraping springs 622, the scraping plates 621 are respectively located above the first grinding roller 81 and the second grinding roller 82, the lower ends of the scraping plates 621 are uniformly inserted with the scraping rods 623, the lower ends of the scraping rods 623 abut against the outer walls of the first grinding roller 81 and the second grinding roller 82, the lower ends of the scraping rods 623 abut against the central axis of the first grinding roller 81 and the central axis of the second grinding roller 82, the pushing shafts 624 are respectively in an acute angle, the upper ends of the pushing shafts 52 are fixedly installed on the triangular plates 624, and the pushing shafts 52 are in a sliding fit manner.

During the operation, in the rotation process of the first grinding roller 81 and the second grinding roller 82, the discharging motor 51 is synchronously started to operate, the discharging gear 511 is driven to rotate by the discharging motor 51, the rotating disc 6 is further driven to rotate by the meshing transmission between the discharging gear 511 and the meshing teeth 61, the vertical rod 64 is driven to synchronously rotate in the circumferential direction during the circumferential rotation process of the rotating disc 6, the shunting disc 41 is further driven to synchronously rotate by the clamping limiting action between the vertical rod 64 and the shunting disc 41, at this time, the casting sand accumulated on the upper end surface of the shunting disc 41 gradually slides down into the blanking groove 411 under the rotation action of the shunting disc 41 and finally falls into the blanking cavity 63, in the circumferential rotation process of the vertical rod 64, when the top of the vertical rod 64 reaches the position of the oscillating rod 26, the oscillating rod 26 can be jacked upwards through sliding fit between the vertical rod 64 and the arc-shaped curved surface at the bottom of the oscillating rod 26, the oscillating plate 22 is driven to move upwards through the oscillating rod 26, the oscillating shaft 24 and the magnetic attraction net 27 are driven to move upwards synchronously through the oscillating plate 22, after the vertical rod 64 moves over the arc-shaped curved surface at the bottom of the oscillating rod 26, the oscillating plate 22 and the magnetic attraction net 27 start to fall back synchronously under the action of gravity and the impact of casting sand, in the falling process of the magnetic attraction net 27, the magnetic attraction net 27 can perform swinging motion within a certain degree of freedom through elastic connection of the oscillating spring 25, the casting sand is further rotated, the probability of blocking of the casting sand is reduced, and after the magnetic attraction net 27 adsorbs iron particles to reach a preset volume range, the magnetic attraction net 27 is replaced through workers, and the magnetic attraction net 27 and the adsorbed iron particles are integrally taken out;

in the process of rotating the rotating disc 6, the first grinding roller 81 and the second grinding roller 82 which are arranged in the circumferential direction are driven by the rotating disc 6 to synchronously rotate in the circumferential direction, so that the first grinding roller 81 and the second grinding roller 82 synchronously perform reciprocating grinding on the upper space of the grinding disc 7 while keeping autorotation, and as the outer contour diameter of the first grinding roller 81 is smaller than that of the second grinding roller 82, the casting sand in the front side of the moving path of the first grinding roller 81 can gradually tend to be flat under the pushing action of the first grinding roller 81 in the process of rotating in the circumferential direction and grinding the casting sand, and then when the second grinding roller 82 moves to the position of piling casting sand along the moving path of the first grinding roller 81, the volume of the casting sand captured by the carrying groove 821 in a single circumferential rolling can be increased, the carrying effect of the second grinding roller 82 on the casting sand is increased, the piling thickness of the piling sand in the front side of the rotating path of the second grinding roller 82 is reduced, and the grinding effect of the second grinding roller 82 on the casting sand is increased;

during the circumferential rotation of the rotating disc 6, the scraping plate 621 is driven to synchronously and circumferentially rotate, the scraping rod 623 is driven to synchronously and circumferentially rotate through the scraping plate 621, so that the scraping rod 623 is always positioned right above the first grinding roller 81 or the second grinding roller 82, then, during the rotation of the first grinding roller 81 or the second grinding roller 82, cast sand bonded aggregates partially adhered to the outer wall of the first grinding roller 81 or the second grinding roller 82 gradually begin to fall off after being subjected to the blocking action of the scraping rod 623, when the scraping plate 621 circumferentially rotates to the position of the triangular plate 52, the pushing shaft 624 arranged on the scraping plate 621 begins to contact with the outer wall of the triangular plate 52 and gradually enables the scraping spring 622 to enter a compressed state, then, the pushing shaft 624 begins to drive the scraping plate to slide in the scraping groove 62 under the inclined guiding action of the side wall of the triangular plate 52, the scraping rod 623 is driven to linearly slide through the scraping plate 621, so that the lower end of the scraping rod 623 slides along the direction of the grinding roller 81 or the grinding roller 82, the scraping rod 623 slides in the direction of the lifting groove 821, and the lifting rod 623 can also effectively move the conveying shaft to the conveying shaft of the casting sand through the lifting rod 623 and the lifting rod 623, and the conveying groove 82, thereby reducing the efficiency of the conveying rod 623.

As an embodiment of the present invention, as shown in fig. 10 and 11, the outer wall of the lower end of the rotating disc 6 is uniformly provided with a cross bar 65 along the circumferential direction thereof, the cross bar 65 is located between the first grinding roller 81 and the second grinding roller 82, the cross bar 65 is obliquely provided with a plurality of knocking frames 651 along the central axis direction thereof in a rotation fit manner, the knocking frames 651 are connected with the cross bar 65 through torsion springs 652, the upper end surface of the grinding disc 7 and the upper end surface of the discharging plate 73 are both provided with spherical blocks 72, one end of the knocking frame 651 is in contact with the spherical blocks 72 in a sliding fit manner, the other end of the knocking frame 651 is fixedly provided with a knocking plate 653, the knocking plate 653 is obliquely arranged at the end of the knocking frame 651, the included angle between the knocking plate 653 and the central axis of the cross bar 65 is an acute angle, the included angle between adjacent knocking plates 653 is an obtuse angle, the lower end surface of the knocking plate 653 is uniformly provided with knocking teeth, and the lengths of two adjacent knocking teeth are staggered.

During the operation, in the process of circumferential rotation of the first grinding roller 81 and the second grinding roller 82, the raised spherical blocks 72 uniformly arranged on the upper end surface of the grinding disc 7 can enhance the grinding effect of the first grinding roller 81 and the second grinding roller 82 on the casting sand, and simultaneously, the friction force on the bottom casting sand in the stacking state is increased through the barrier function, so that the flow capacity of the casting sand pushed by the first grinding roller 81 or the second grinding roller 82 is reduced, in the process of circumferential rotation of the rotating disc 6, the cross bar 65 is driven to perform synchronous circumferential rotation, the knocking frame 651 is driven to perform synchronous circumferential rotation through the cross bar 65, the casting sand in the leveling state can be turned up in a strip shape through the circumferential rotation of the knocking frame 651, so that the flattened and compacted casting sand becomes a loose state again, when the knocking frame 651 moves to the position of the spherical blocks 72, one end of the knocking frame 651 starts to stop further circumferential rotation after being acted by the barrier function of the spherical blocks 72, then, the knocking frame 651 starts to rotate on the cross bar 65 and gradually enters a compression state by the torsion spring 652, in the process of the rotation of the knocking frame 651, the knocking plate 653 arranged at the other end of the knocking frame 651 starts to lift upwards and drives the knocking teeth inserted at the lower end of the knocking frame to lift synchronously, after the knocking frame 651 completely crosses over the position of the spherical block 72, the knocking frame 651 stops rotating and resets under the action of the torsion spring 652, then, the knocking plate 653 starts to fall back and enables the knocking teeth at the bottom of the knocking plate 653 to be inserted into the casting sand, the crushing effect on the bonded casting sand aggregates can be further improved through the insertion action of the knocking teeth, meanwhile, through the knocking action of the knocking teeth, the casting sand clusters adhered to the upper end face of the grinding disc 7 can be knocked, and the knocking frame 651 rotates to the position to turn upwards out at the next station, the crushing and grinding effects of the first grinding roller 81 and the second grinding roller 82 on the casting sand are improved;

through the obliquely arranged knocking plate 653 and the knocking teeth arranged in a staggered length mode, broken cast sand can be separated from the bonding position of the broken cast sand while the cast sand knocking crushing operation is carried out, the distribution area and the dispersion state of cast sand clusters on the grinding disc 7 are improved, the effective contact area and the effective contact volume between the following first grinding roller 81 and second grinding roller 82 and the cast sand clusters during rotation and turnover are further improved, the grinding effect is improved, after the cast sand grinding is completed, the blocking operation of the discharging plate 73 on the bottom of the grinding disc 7 is relieved through the resetting operation of the discharging cylinder 21, then the cast sand gradually flows out from the grinding cylinder 5 under the action of gravity, then the grinded cast sand is collected through workers, and at the moment, the first grinding roller 81, the second grinding roller 82 and the knocking frame 651 are still in a circumferential rotation state, the cast sand accumulated on the upper end face of the grinding disc 7 can be continuously pushed out through the synergistic pushing action of the three, and the collecting operation efficiency of the cast sand grinder is improved.

When in work:

the first step is as follows: the method comprises the steps of firstly starting a material discharging cylinder 21 to work, pushing a material discharging plate 73 to move through the material discharging cylinder 21, enabling the material discharging plate 73 to finish plugging operation on the bottom of a grinding disc 7, then pouring casting sand to be ground through workers or existing conveying equipment along an opening at the upper end of a material discharging bin 2, enabling the casting sand to fall downwards under the action of gravity of the casting sand, enabling the casting sand to further penetrate through a magnetic suction frame 3 in the falling process, enabling a small amount of iron particles doped in the casting sand to be adsorbed through the magnetic suction frame 3 at the moment, enabling the casting sand penetrating through the position of the magnetic suction frame 3 to further fall downwards under the action of gravity, enabling the casting sand to enter a grinding cylinder 5 after penetrating through a beam collecting bin 4, enabling the casting sand to form accumulation on the grinding disc 7 after penetrating through a rotating disc 6, then starting a grinding motor 9 to operate, driving bevel gears 10 connected with the grinding motor 9 to rotate through the grinding motor, further driving grinding rollers 8 arranged in the circumferential direction to synchronously rotate through meshing transmission among the bevel gears 10, and finishing the aggregate crushing and grinding operation on the casting sand through the grinding rollers 8.

The second step is that: at the initial position, the magnetic net 27 is movably installed on the oscillating shaft 24, at this time, under the elastic supporting and drawing action of the oscillating spring 25, the magnetic net 27 is in a horizontal state, then, in the process that the casting sand freely falls under the action of gravity, after the casting sand reaches the position of the conical plate 23, the casting sand starts to gradually slide down to the magnetic nets 27 on both sides of the oscillating plate 22 under the separating and guiding action of the inclined surface on the upper end of the conical plate 23, the adsorption of iron particles doped in the casting sand can be completed through the magnetic attraction action of the magnetic net 27, when the casting sand after impurity removal is fallen to the bottom position of the beam collecting bin 4, the casting sand starts to form a pile on the upper end surface of the diverter plate 41 and gradually passes through the blanking groove 411 to enter the blanking cavity 63 on the rotating plate 6, then, a part of the casting sand with small volume directly passes through the area where the first grinding roll 81 or the second grinding roll 82 is located and finally reaches the upper end surface of the grinding plate 7, and the rest of the casting sand starts to form a pile on the first grinding roll 81 or the second grinding roll 82 and gradually fills the blanking cavity 63.

The third step: during the operation of the grinding motor 9, the first grinding roller 81 and the second grinding roller 82 rotate synchronously, then the casting sand accumulated in the blanking cavity 63 reaches the upper end surface of the grinding disc 7 through the rotation of the first grinding roller 81 or the second grinding roller 82, and during the rotation of the first grinding roller 81 and the second grinding roller 82, part of the casting sand particles are directly crushed by the pressing action between the first grinding roller 81 or the second grinding roller 82 and the inner wall of the blanking cavity 63.

The third step: during the cast sand crushing and grinding operation of the second grinding roller 82, the air outlet 823 in the conveying groove 821 in the preset range can be blocked by the sliding rolling contact between the outer wall of the sealing cylinder 711 and the inner wall of the second grinding roller 82, so that the cast sand cannot enter the second grinding roller 82 while being accumulated in the conveying groove 821, then the conventional air pump is started to operate, air is introduced into the air pipe 71 through the air pump, the introduced air immediately reaches the inside of the sealing cylinder 711 under the guiding and conveying action of the air pipe 71, then the air flow is filled into the inside of the second grinding roller 82 at the fan-shaped air outlet bin position and finally is discharged to the outside from the air outlet 823 in the upper half section of the second grinding roller 82, the cast sand accumulated in the conveying groove 821 can be blown out through the blowing action of the air flow, the conveying groove 821 is continuously filled and discharged with the cast sand in the process of rotating along the circumferential direction of the second grinding roller 82, and the crushing operation of large-volume cast sand particles is completed through the rolling teeth 822 in the process.

The fourth step: in the process of autorotation of the first grinding roller 81 and the second grinding roller 82, the discharge motor 51 is synchronously started to operate, the discharge gear 511 is driven to rotate by the discharge motor 51, the rotating disc 6 is further driven to rotate by meshing transmission between the discharge gear 511 and the meshing teeth 61, the first grinding roller 81 and the second grinding roller 82 which are circumferentially arranged are driven to synchronously rotate circumferentially by the rotating disc 6, and the first grinding roller 81 and the second grinding roller 82 synchronously roll the upper space of the grinding disc 7 in a reciprocating manner while the autorotation is kept;

the fifth step: in the process of circumferential rotation of the rotating disc 6, the scraping plate 621 is driven to synchronously and circumferentially rotate, the scraping rod 623 is driven to synchronously and circumferentially rotate through the scraping plate 621, so that the scraping rod 623 is always positioned right above the first grinding roller 81 or the second grinding roller 82, then, in the process of autorotation of the first grinding roller 81 or the second grinding roller 82, the casting sand bonding aggregates partially adhered to the outer wall of the first grinding roller 81 or the second grinding roller 82 gradually start to fall off after being subjected to the blocking action of the scraping rod 623, meanwhile, the blocking and cleaning of the casting sand accumulated in the conveying groove 821 can be performed through the transverse movement of the scraping rod 623, the effective conveying volume and conveying efficiency of the conveying groove 821 on the casting sand can be improved by matching with the air blowing action of the air outlet 823, the concave-convex degree of the casting sand at the upper end of the grinding disc 7 is reduced, and the grinding efficiency of the first grinding roller 81 and the second grinding roller 82 on the casting sand is improved.

And a sixth step: in the process of circumferential rotation of the first grinding roller 81 and the second grinding roller 82, the raised spherical blocks 72 uniformly arranged on the upper end surface of the grinding disc 7 can enhance the grinding effect of the first grinding roller 81 and the second grinding roller 82 on the casting sand, and simultaneously, the friction force of the bottom casting sand in the stacking state is increased through the barrier function, the flowing capability of the casting sand in the pushing action of the first grinding roller 81 or the second grinding roller 82 is reduced, and in the process of circumferential rotation of the rotating disc 6, the cross bar 65 is driven to synchronously circumferential-rotate, the knocking frame 651 is driven to synchronously circumferential-rotate through the cross bar 65, the casting sand in the leveling state can be turned in a strip shape through the circumferential rotation of the knocking frame 651, so that the casting sand pressed flatly is in a loose state again, the casting sand adhered to the upper end surface of the grinding disc 7 can be broken through the knocking action of the knocking teeth, the casting sand cluster adhered to the upper end surface of the grinding disc 7 can be knocked upwards through the knocking frame 651 when the knocking frame 651 rotates to the position, the grinding roller 81 and the casting sand cluster can be pushed out through the grinding cylinder 73, and the grinding roller 81 and the grinding roller 82 can be pushed out through the grinding cylinder 73, and the grinding cylinder can be pushed out after the grinding operation of the grinding cylinder is completed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a waste sand grinds processing apparatus, includes bottom plate (1), blanking storehouse (2), magnetism and inhale frame (3), collects storehouse (4), grinding vessel (5), rolling disc (6), abrasive disc (7), grinding roller (8), grinding motor (9), bevel gear (10) and supporting legs (11), its characterized in that: the grinding machine is characterized in that supporting legs (11) are uniformly arranged on the lower end face of the bottom plate (1), a blanking bin (2) is fixedly arranged on the upper end face of the bottom plate (1), a bundling bin (4) is fixedly arranged on the inner side of the blanking bin (2), the bundling bin (4) is of a horn mouth structure with a downward pointed end, a grinding cylinder (5) is jointly arranged on the lower end of the bundling bin (4) and the middle of the bottom plate (1), the blanking bin (2), the bundling bin (4) and the grinding cylinder (5) are all in a communicated state, a grinding disc (7) is fixedly arranged on the lower end of the grinding cylinder (5), a rotating disc (6) is jointly arranged on the upper end and the middle of the grinding cylinder (5) in a rotation fit mode, grinding rollers (8) are uniformly arranged on the lower end of the rotating disc (6) in a rotation fit mode along the circumferential direction of the rotating disc, a grinding motor (9) is fixedly arranged on the inner side of the upper end of the rotating disc (6) through a motor base, a grinding motor (9) is fixedly arranged on the inner side of the upper end of the output shaft of the grinding motor (9), bevel gears (10) and the end of the grinding roller (8) are respectively, a magnetic attraction grinding motor (10) and a bevel gear (3) meshed with the upper end of the grinding motor (9), and a bevel gear (3) in a sliding fit mode;

the grinding roller (8) comprises a first grinding roller (81) and a second grinding roller (82), the first grinding roller (81) and the second grinding roller (82) are installed at intervals, the heights of the central axes of the first grinding roller (81) and the second grinding roller (82) are equal, the outer contour diameter of the first grinding roller (81) is smaller than that of the second grinding roller (82), the circumferential outer wall of the second grinding roller (82) is provided with carrying grooves (821) along the circumferential direction, and the notch side walls of the carrying grooves (821) are uniformly spliced and rolled with teeth (822) along the central axis direction of the second grinding roller (82);

the bottom of the notch of the conveying groove (821) is of an arc-shaped structure, the side wall of the top of the notch of the conveying groove (821) expands outwards along the tangential direction of the arc of the bottom of the notch, an included angle between the side walls of the two sides of the top of the notch of the conveying groove (821) is an acute angle, the grinding teeth (822) are respectively installed on the side walls of the two sides of the notch of the top of the conveying groove (821), and the vertical distance between the end part of the grinding teeth (822) and the central axis of the second grinding roller (82) is equal to the radius of the second grinding roller (82).

2. The waste sand grinding treatment device according to claim 1, characterized in that: a cavity is formed in the inner side of the second grinding roller (82), a through groove communicated with the cavity in the inner side of the second grinding roller (82) is formed in the middle of the bevel gear (10), an air pipe (71) is fixedly installed in the middle of the grinding disc (7), one end of the air pipe (71) is communicated with an existing air pump, the other end of the air pipe (71) penetrates through the through groove in the middle of the bevel gear (10) and extends into the inner side cavity of the second grinding roller (82), a sealing cylinder (711) is fixedly installed at the end of the air pipe (71), the outer wall of the sealing cylinder (711) abuts against the inner wall of the cavity of the second grinding roller (82) in a rotation fit mode, air exhaust ports (823) are uniformly formed in the bottom of an arc notch of a carrying groove (821) along the direction of the central axis of the arc notch, the air exhaust ports (823) are in sealing fit with the side wall of the sealing cylinder (711), a fan-shaped air exhaust bin is formed in one side of the sealing cylinder (711), the air bin is close to the upper half section of the second grinding roller (82) and is communicated with the air exhaust ports (823).

3. The waste sand grinding treatment device according to claim 1, characterized in that: the grinding machine is characterized in that meshing teeth (61) are uniformly installed on the outer wall of the circumference of the upper end of the rotating disc (6) along the circumferential direction of the outer wall, a discharging motor (51) is installed on the side wall of the grinding cylinder (5) through a motor base in a fixed mode, a discharging gear (511) is installed on an output shaft of the discharging motor (51), the discharging gear (511) is in meshing transmission with the meshing teeth (61), a scraping groove (62) is uniformly formed in the upper end of the rotating disc (6) along the circumferential direction of the upper end of the rotating disc, scraping plates (621) are installed in the scraping groove (62) in a sliding fit mode, the scraping plates (621) are connected with the rotating disc (6) through scraping springs (622), the scraping plates (621) are respectively located above a grinding roller (81) and a grinding roller (82) and above a grinding roller (82) in a sliding fit mode, scraping rods (623) are uniformly inserted into the lower ends of the scraping rods (623), the lower ends of the scraping rods (623) abut against the outer walls of the grinding roller (81) and the grinding roller (82) and the triangular plate (52) in a sliding fit mode.

4. The waste sand grinding treatment device according to claim 3, characterized in that: the included angle between the lower end of the scraping rod (623) and the central axis of the first grinding roller (81) and the central axis of the second grinding roller (82) is an acute angle.

5. The waste sand grinding treatment device according to claim 1, characterized in that: rolling disc (6) middle part evenly seted up unloading cavity (63) along its circumference, grinding roller (81) and No. two grinding roller (82) all are located unloading cavity (63), diverter plate (41) are installed through normal running fit's mode to the bottom in closing up storehouse (4), unloading groove (411) that are linked together with unloading cavity (63) are evenly seted up all around to the quotation of diverter plate (41), montant (64) are evenly installed along its circumference in the upper end of rolling disc (6), montant (64) run through diverter plate (41) and montant (64) the upper end support through sliding fit's mode and lean on the bottom in magnetism suction frame (3).

6. The waste sand grinding treatment device according to claim 1, characterized in that: grinding disk (7) on install row material board (73) through sliding fit's mode, arrange material board (73) and grinding disk (7) sealed fit, the lateral wall fixed mounting of blanking storehouse (2) arranges material cylinder (21), and arrange the output shaft of material cylinder (21) and arrange material board (73) and be connected.

7. The waste sand grinding treatment device according to claim 6, characterized in that: rotating disc (6) lower extreme outer wall evenly install horizontal pole (65) along its circumference, horizontal pole (65) are located between grinding roller (81) and No. two grinding roller (82), and install a plurality of frame (651) of strikeing through normal running fit's mode slope along its central axis direction on horizontal pole (65), it all is connected with horizontal pole (65) through torsional spring (652) to strike frame (651), spherical piece (72) are all installed to the up end of abrasive disc (7) and the up end of arranging flitch (73), the one end of strikeing frame (651) is through sliding fit's mode and spherical piece (72) contact, the other end fixed mounting who strikes frame (651) has strikeing board (653).

8. The waste sand grinding treatment device according to claim 7, characterized in that: strike board (653) all install the tip of strikeing frame (651) in the slope, strike board (653) and horizontal pole (65) central axis between the contained angle be the acute angle, and adjacent included angle of strikeing between board (653) is the obtuse angle, strike the lower terminal surface of board (653) and evenly install and strike the tooth, and adjacent two lengths of strikeing the tooth are misplaced mutually.

9. The waste sand grinding treatment device according to claim 5, characterized in that: magnetic attraction frame (3) still include oscillation plate (22), conical plate (23), oscillating axle (24), oscillating spring (25), oscillating rod (26), net (27) and dead lever (28) are inhaled to magnetism, oscillation plate (22) are installed through sliding fit's mode in the upper end middle part of blanking storehouse (2), the upper end fixed mounting of oscillation plate (22) has most advanced ascending conical plate (23), the both sides of oscillation plate (22) all are provided with cylindrical curved surface, and install oscillating axle (24) through rotating fit's mode on the cylindrical curved surface of oscillation plate (22), one side of oscillating axle (24) is connected with conical plate (23) through oscillating spring (25), the opposite side movable mounting of oscillating axle (24) has magnetism to inhale net (27), two sets of dead levers (28) are installed to the upper end both sides of blanking storehouse (2), two sets of dead lever (28) and two magnetism inhale net (27) and correspond one by one, and the same group of dead lever (28) are located the upper and lower both sides of same net (27) respectively, the lower extreme fixed mounting of oscillation plate (22) has oscillation rod (26), the lower extreme support and lean on arc curved surface (64) and support and pass through sliding fit.