CN218573895U - Raw material crusher is used in resin sand production - Google Patents

Abstract

The utility model relates to a resin sand production technical field specifically is a raw materials breaker is used in resin sand production. The power distribution box comprises a box body, fixed mounting has broken case in the box, broken incasement internal rotation installs the crushing roller, one side fixed mounting of box has first motor, the output shaft of first motor and the one end welding of crushing roller, the discharge opening has been seted up to one side that first motor was kept away from to the box, run through the rectangle frame that has the slope to set up in the discharge opening slides, the rectangle frame is located the below of broken case, fixed mounting has the screen cloth in the rectangle frame. The utility model has the advantages that: through simple dust removal and screening mechanism to can effectively clear away the dust that produces in the resin sand production process, can effectively reduce the pollution to the air, be favorable to guaranteeing resin sand production environment, can effectively improve the screening effect to the resin sand granule simultaneously, and then guarantee product quality, the effectual resin sand production efficiency that has improved.

Description

Raw material crusher is used in resin sand production

Technical Field

The utility model relates to a resin sand production technical field specifically is a raw materials breaker is used in resin sand production.

Background

The resin sand is molding sand or core sand which takes synthetic resin as a binder of sand grains, can provide necessary strength for a casting mould or a core through the action of a curing agent, has chemical inertia, can effectively reduce environmental pollution through proper use and recovery, is widely applied to the field of casting of aluminum alloy fittings of household appliances, needs a crusher to crush raw materials in the production process so as to obtain required particle size, and generally comprises a crushing mechanism and a screening mechanism.

However, the existing raw material crusher for resin sand production generally does not have a dust removal mechanism, so that a large amount of dust is generated in the crushing process, air pollution is easily caused, the screening mechanism is generally a simple screening screen plate, the screening effect is poor, the product quality is difficult to guarantee, and the improvement of the production efficiency is not facilitated.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model aims to: the utility model provides a raw material crusher is used in resin sand production, solves current raw material crusher for resin sand production and generally does not have dust removal mechanism, leads to producing a large amount of dust in the crushing process, causes air pollution easily, and its screening mechanism generally is simple screening otter board, and the screening effect is relatively poor, is difficult to guarantee product quality, is unfavorable for improving production efficiency's problem.

For the purpose of realizing above, the utility model discloses a technical scheme: the utility model provides a raw materials breaker is used in resin sand production, includes the box, fixed mounting has broken case in the box, broken incasement rotation installs the crushing roller, one side fixed mounting of box has first motor, the output shaft of first motor and the one end welding of crushing roller, the discharge opening has been seted up to one side that first motor was kept away from to the box, it has the rectangle frame that the slope set up to run through in the discharge opening slides, the rectangle frame is located the below of broken case, fixed mounting has the screen cloth in the rectangle frame, it has the kuppe to fix and run through on the top inner wall of box, the top of kuppe is fixed and is communicated with the air extractor, it has the blast pipe to fix and communicate on the gas vent of air extractor, one side fixed mounting that first motor was kept away from to the box has the water tank, the top is the open-ended drum installed to the water tank rotation, the bottom of blast pipe extends to in the drum, fixed mounting has a plurality of annular otter boards in the drum, annular otter board rotates the cover and establishes on the blast pipe, the bottom fixed mounting of water tank has the second motor, the output shaft of second motor extends to weld in the water tank and with the bottom of drum.

The utility model has the advantages that: through setting up like this to can realize the quick effective processing to dust in the resin sand production process, and then avoid dust pollution air, can guarantee good resin sand production environment.

In order to improve the screening effect on the resin sand:

as a further improvement of the technical scheme: the box still includes two slide bars, slide bar fixed mounting is in the box, the slide bar slope sets up the below at the rectangle frame, sliding sleeve is equipped with two supporting shoes on the slide bar, the top welding of supporting shoe is in the bottom of rectangle frame, four the supporting shoe is the rectangle array and arranges, sliding sleeve is equipped with two springs on the slide bar, two the one end that the spring is close to each other contacts with the supporting shoe that corresponds respectively, keeps away from it has same round bar to weld on two supporting shoes of discharge opening, the cover is equipped with the head rod to rotate on the round bar, fixed mounting has the third motor in the box, fixed cover is equipped with the second connecting rod on the output shaft of third motor, the other end of second connecting rod is articulated with the bottom of head rod.

The beneficial effect of this improvement does: through setting up like this to can effectively improve the screening effect to the resin sand, can effectively guarantee product quality, the effectual production efficiency who improves the resin sand.

To retard the rolling speed of the resin sand particles:

as a further improvement of the technical scheme: the top welding of rectangle frame has a plurality of surf sticks, the cross section of surf stick is the triangle-shaped structure, the top contact of surf stick and screen cloth.

The beneficial effect of this improvement does: through setting up the surf lever to can delay the roll speed of resin sand granule, and then guarantee the screening effect to resin sand.

In order to facilitate the recovery of the finer resin sand:

as a further improvement of the above technical solution: the top fixed mounting of box has the feeder hopper, feeder hopper and broken case intercommunication, it has the relief hole to run through on the bottom inner wall of broken case, the relief hole is located the top of screen cloth, the waste discharge mouth has been seted up to one side that the water tank was kept away from to the box, be equipped with the apron on the waste discharge mouth.

The beneficial effect of this improvement does: through setting up the waste discharge mouth to be convenient for retrieve tiny resin sand.

In order to make the rotation of the crushing roller smoother:

as a further improvement of the above technical solution: the inner wall of one side that the water tank was kept away from to the box and one side that broken case is close to the water tank all run through and have first through-hole, the both ends of crushing roller extend to respectively in the first through-hole that corresponds, the output shaft of first motor rotates and installs in the first through-hole that corresponds.

The beneficial effect of this improvement does: through setting up first through-hole to can guarantee the spacing to the crushing roller, make it can only rotate.

In order to ensure that water can submerge a plurality of annular net plates:

as a further improvement of the technical scheme: the top of water tank is equipped with the water inlet, one side that first motor was kept away from to the water tank is fixed and is communicated with there is the drain pipe, be equipped with the valve on the drain pipe, it has a plurality of small openings to run through on the bottom inner wall of drum, it has the second through-hole to run through on the bottom inner wall of water tank, the output shaft of second motor rotates and runs through the second through-hole, fixed mounting has the sealing washer in the second through-hole, the sealing washer rotates the cover and establishes on the output shaft of second motor.

The beneficial effect of this improvement does: through setting up the small opening to guarantee the intercommunication of drum and water tank, make hydroenergy enough be full of the drum, guarantee the filtration to the dust.

In order to ensure the buffering effect of the spring on the supporting block:

as a further improvement of the above technical solution: the supporting block is provided with a third through hole in a penetrating mode, the sliding rod penetrates through the third through hole in a sliding mode, the sliding rod is fixedly sleeved with two annular clamping blocks, and one ends, far away from each other, of the two springs are respectively in contact with the corresponding annular clamping blocks.

The beneficial effect of this improvement does: through setting up annular fixture block to can retrain the spring, and then guarantee the cushioning effect of spring to the supporting shoe.

Drawings

FIG. 1 is a schematic sectional view of the front view of the present invention;

FIG. 2 is an enlarged schematic view of a portion A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the top view assembly structure of the middle cylinder and the ring-shaped net plate of the present invention;

fig. 4 is a schematic view of the bottom assembly structure of the rectangular frame, the screen, the supporting block, the round bar and the first connecting bar of the present invention;

fig. 5 is a schematic perspective view of the rectangular frame, the support block, the surfing bar, the round bar and the first connecting rod of the present invention;

fig. 6 is an enlarged schematic structural view of a portion B in fig. 1 according to the present invention.

In the figure: 1. a box body; 2. a crushing box; 3. a crushing roller; 4. a first motor; 5. a discharge hole; 6. a rectangular frame; 7. screening a screen; 8. a dome; 9. an air extractor; 10. an exhaust pipe; 11. a water tank; 12. a cylinder; 13. a ring-shaped screen plate; 14. a second motor; 15. a slide bar; 16. a support block; 17. a spring; 18. a round bar; 19. a first connecting rod; 20. a third motor; 21. a second connecting rod; 22. a surf-board.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention is described in detail below with reference to the accompanying drawings, and the description in this section is only exemplary and explanatory, and should not have any limiting effect on the scope of the present invention.

Example 1:

as shown in fig. 1-4, a raw material crusher for producing resin sand comprises a box body 1, a crushing box 2 is fixedly installed in the box body 1, a crushing roller 3 is installed in the crushing box 2 in a rotating manner, a first motor 4 is fixedly installed on one side of the box body 1, an output shaft of the first motor 4 is welded to one end of the crushing roller 3, a discharge hole 5 is formed in one side, away from the first motor 4, of the box body 1, a rectangular frame 6 obliquely arranged penetrates through the discharge hole 5 in a sliding manner, the rectangular frame 6 is located below the crushing box 2, a screen 7 is fixedly installed in the rectangular frame 6, a flow guide cover 8 is fixed on and penetrates through the inner wall of the top of the box body 1, the top of the flow guide cover 8 is fixed and communicated with an air extractor 9, an exhaust pipe 10 is fixed and communicated on an exhaust port of the air extractor 9, a water tank 11 is fixedly installed on one side, away from the first motor 4, a water tank 11 is fixedly installed in the water tank 11 in a rotating manner, a cylinder 12 with an opening at the top, a bottom of the exhaust pipe 10 extends into a cylinder 12, a plurality of annular exhaust pipes 13 are fixedly installed on a rotating manner, and a second water tank 11 is welded to the bottom of the water tank 11, and a second motor 14 extends to a second motor 14.

Example 2:

as shown in fig. 1, fig. 4, fig. 5 and fig. 6, as a further optimization of the above embodiment, a raw material crusher for producing resin sand includes a box body 1, a crushing box 2 is fixedly installed in the box body 1, a crushing roller 3 is installed in the crushing box 2 in a rotating manner, a first motor 4 is fixedly installed on one side of the box body 1, an output shaft of the first motor 4 is welded to one end of the crushing roller 3, a discharge hole 5 is opened on one side of the box body 1 away from the first motor 4, a rectangular frame 6 obliquely arranged is penetrated in the sliding direction of the discharge hole 5, the rectangular frame 6 is located below the crushing box 2, a screen 7 is fixedly installed in the rectangular frame 6, a deflector 8 is fixed and penetrated on an inner wall of the top of the box body 1, a top of the deflector 8 is fixedly communicated with an air extractor 9, an exhaust pipe 10 is fixedly communicated on an exhaust port of the air extractor 9, a water tank 11 is fixedly installed on one side of the box body 1 away from the first motor 4, a cylinder 12 with an open top is rotatably installed in the water tank 11, a bottom of the exhaust pipe 10 extends into a cylinder 12, a cylinder 12 is fixedly installed in the air extractor 12, a cylinder 13 is connected with a second motor 14, and a second motor 14 is welded to a cylinder 14. The box body 1 further comprises two sliding rods 15, the sliding rods 15 are fixedly installed in the box body 1, the sliding rods 15 are obliquely arranged below the rectangular frame 6, two supporting blocks 16 are sleeved on the sliding rods 15 in a sliding mode, the top ends of the supporting blocks 16 are welded to the bottom of the rectangular frame 6, the four supporting blocks 16 are arranged in a rectangular array mode, two springs 17 are sleeved on the sliding rods 15 in a sliding mode, one ends, close to each other, of the springs 17 are respectively in contact with the corresponding supporting blocks 16, the two supporting blocks 16, far away from the discharge hole 5, are welded with the same round rod 18, the round rod 18 is rotatably sleeved with a first connecting rod 19, a third motor 20 is fixedly installed in the box body 1, a second connecting rod 21 is fixedly sleeved on an output shaft of the third motor 20, and the other end of the second connecting rod 21 is hinged to the bottom end of the first connecting rod 19.

Example 3:

as shown in fig. 5-6, as a further optimization of the above embodiment, a raw material crusher for producing resin sand includes a box body 1, a crushing box 2 is fixedly installed in the box body 1, a crushing roller 3 is installed in the crushing box 2 in a rotating manner, a first motor 4 is fixedly installed on one side of the box body 1, an output shaft of the first motor 4 is welded to one end of the crushing roller 3, a discharge hole 5 is formed in one side of the box body 1, which is far away from the first motor 4, the discharge hole 5 penetrates through a rectangular frame 6 which is obliquely arranged in a sliding manner, the rectangular frame 6 is located below the crushing box 2, a screen 7 is fixedly installed in the rectangular frame 6, a diversion cover 8 is fixed and penetrates through the inner wall of the top of the box body 1, an air extractor 9 is fixedly communicated with the top of the diversion cover 8, an air exhaust pipe 10 is fixedly communicated with an exhaust port of the air extractor 9, a water tank 11 is fixedly installed on one side of the box body 1, which is far away from the first motor 4, a cylinder 12 with which the top is open is rotatably installed in the water tank 11, a plurality of circular water tanks 13 are fixedly installed in the cylinder 12, and a second motor 14 is welded to the bottom of the water tank 14. A plurality of surf sticks 22 are welded on the top of the rectangular frame 6, the cross section of the surf sticks 22 is a triangular structure, and the surf sticks 22 are contacted with the top of the screen 7.

Example 4:

as shown in fig. 1, as a further optimization of the above embodiment, a raw material crusher for producing resin sand includes a box body 1, a crushing box 2 is fixedly installed in the box body 1, a crushing roller 3 is installed in the crushing box 2 in a rotating manner, a first motor 4 is fixedly installed on one side of the box body 1, an output shaft of the first motor 4 is welded to one end of the crushing roller 3, a discharge hole 5 is formed in one side of the box body 1, which is far away from the first motor 4, the discharge hole 5 penetrates through a rectangular frame 6 which is obliquely arranged in a sliding manner, the rectangular frame 6 is located below the crushing box 2, a screen 7 is fixedly installed in the rectangular frame 6, a flow guide cover 8 is fixed on and penetrates through the inner wall of the top of the box body 1, the top of the flow guide cover 8 is fixed and communicated with an air extractor 9, an exhaust pipe 10 is fixed and communicated with an exhaust port of the air extractor 9, a water tank 11 is fixedly installed on one side of the box body 1, which is far away from the first motor 4, a cylinder 12 with which the top is open is rotatably installed in the water tank 11, the bottom of the exhaust pipe 10 extends to the cylinder 12, a plurality of annular water tanks 13 are fixedly installed in the water tank 11, and a second motor 14 is welded to the bottom of the second motor 14. The top fixed mounting of box 1 has the feeder hopper, feeder hopper and broken case 2 intercommunication, it has the relief hole to run through on the bottom inner wall of broken case 2, the relief hole is located the top of screen cloth 7, the waste discharge mouth has been seted up to one side that water tank 11 was kept away from to box 1, be equipped with the apron on the waste discharge mouth.

Example 5:

as shown in fig. 1, as a further optimization of the above embodiment, a raw material crusher for producing resin sand includes a box body 1, a crushing box 2 is fixedly installed in the box body 1, a crushing roller 3 is installed in the crushing box 2 in a rotating manner, a first motor 4 is fixedly installed on one side of the box body 1, an output shaft of the first motor 4 is welded to one end of the crushing roller 3, a discharge hole 5 is formed in one side of the box body 1, which is far away from the first motor 4, the discharge hole 5 penetrates through a rectangular frame 6 which is obliquely arranged in a sliding manner, the rectangular frame 6 is located below the crushing box 2, a screen 7 is fixedly installed in the rectangular frame 6, a flow guide cover 8 is fixed on and penetrates through the inner wall of the top of the box body 1, the top of the flow guide cover 8 is fixed and communicated with an air extractor 9, an exhaust pipe 10 is fixed and communicated with an exhaust port of the air extractor 9, a water tank 11 is fixedly installed on one side of the box body 1, which is far away from the first motor 4, a cylinder 12 with which the top is open is rotatably installed in the water tank 11, the bottom of the exhaust pipe 10 extends to the cylinder 12, a plurality of annular water tanks 13 are fixedly installed in the water tank 11, and a second motor 14 is welded to the bottom of the second motor 14. The inner wall of one side that water tank 11 was kept away from to box 1 and one side that broken case 2 is close to water tank 11 all run through and have first through-hole, the both ends of crushing roller 3 extend to respectively in the first through-hole that corresponds, the output shaft of first motor 4 rotates and installs in the first through-hole that corresponds.

Example 6:

as shown in fig. 2, as a further optimization of the above embodiment, a raw material crusher for producing resin sand includes a box body 1, a crushing box 2 is fixedly installed in the box body 1, a crushing roller 3 is installed in the crushing box 2 in a rotating manner, a first motor 4 is fixedly installed on one side of the box body 1, an output shaft of the first motor 4 is welded to one end of the crushing roller 3, a discharge hole 5 is formed in one side of the box body 1, which is far away from the first motor 4, the discharge hole 5 penetrates through a rectangular frame 6 which is obliquely arranged in a sliding manner, the rectangular frame 6 is located below the crushing box 2, a screen 7 is fixedly installed in the rectangular frame 6, a flow guide cover 8 is fixed on and penetrates through the inner wall of the top of the box body 1, the top of the flow guide cover 8 is fixed and communicated with an air extractor 9, an exhaust pipe 10 is fixed and communicated with an exhaust port of the air extractor 9, a water tank 11 is fixedly installed on one side of the box body 1, which is far away from the first motor 4, a cylinder 12 with which the top is open is rotatably installed in the water tank 11, the bottom of the exhaust pipe 10 extends to the cylinder 12, a plurality of annular water tanks 13 are fixedly installed in the water tank 11, and a second motor 14 is welded to the bottom of the second motor 14. The top of water tank 11 is equipped with the water inlet, the fixed and intercommunication in one side that first motor 4 was kept away from to water tank 11 has the drain pipe, be equipped with the valve on the drain pipe, it has a plurality of small openings to run through on the bottom inner wall of drum 12, it has the second through-hole to run through on the bottom inner wall of water tank 11, the output shaft of second motor 14 rotates and runs through the second through-hole, the fixed mounting has the sealing washer in the second through-hole, the sealing washer rotates the cover and establishes on the output shaft of second motor 14.

Example 7:

as shown in fig. 1, fig. 4, fig. 5 and fig. 6, as a further optimization of the above embodiment, a raw material crusher for producing resin sand includes a box body 1, a crushing box 2 is fixedly installed in the box body 1, a crushing roller 3 is installed in the crushing box 2 in a rotating manner, a first motor 4 is fixedly installed on one side of the box body 1, an output shaft of the first motor 4 is welded to one end of the crushing roller 3, a discharge hole 5 is opened on one side of the box body 1 away from the first motor 4, a rectangular frame 6 obliquely arranged is penetrated in the sliding direction of the discharge hole 5, the rectangular frame 6 is located below the crushing box 2, a screen 7 is fixedly installed in the rectangular frame 6, a deflector 8 is fixed and penetrated on an inner wall of the top of the box body 1, a top of the deflector 8 is fixedly communicated with an air extractor 9, an exhaust pipe 10 is fixedly communicated on an exhaust port of the air extractor 9, a water tank 11 is fixedly installed on one side of the box body 1 away from the first motor 4, a cylinder 12 with an open top is rotatably installed in the water tank 11, a bottom of the exhaust pipe 10 extends into a cylinder 12, a cylinder 12 is fixedly installed in the air extractor 12, a cylinder 13 is connected with a second motor 14, and a second motor 14 is welded to a cylinder 14. The box body 1 further comprises two sliding rods 15, the sliding rods 15 are fixedly installed in the box body 1, the sliding rods 15 are obliquely arranged below the rectangular frame 6, two supporting blocks 16 are sleeved on the sliding rods 15 in a sliding mode, the top ends of the supporting blocks 16 are welded to the bottom of the rectangular frame 6, the four supporting blocks 16 are arranged in a rectangular array mode, two springs 17 are sleeved on the sliding rods 15 in a sliding mode, one ends, close to each other, of the springs 17 are respectively in contact with the corresponding supporting blocks 16, the two supporting blocks 16, far away from the discharge hole 5, are welded with the same round rod 18, the round rod 18 is rotatably sleeved with a first connecting rod 19, a third motor 20 is fixedly installed in the box body 1, a second connecting rod 21 is fixedly sleeved on an output shaft of the third motor 20, and the other end of the second connecting rod 21 is hinged to the bottom end of the first connecting rod 19. A third through hole penetrates through the supporting block 16, the sliding rod 15 penetrates through the third through hole in a sliding manner, two annular clamping blocks are fixedly sleeved on the sliding rod 15, and one ends, far away from each other, of the two springs 17 are respectively in contact with the corresponding annular clamping blocks.

The utility model discloses a theory of operation does: when the device is used, the air pump 9 is started firstly, so that the air in the box body 1 is sucked into the exhaust pipe 10 through the air guide sleeve 8, the air in the exhaust pipe 10 is discharged into the water in the water tank 11, then the second motor 14 is started, the output shaft of the second motor 14 drives the cylinder 12 to rotate in the water tank 11, so that the annular net plates 13 are driven to rotate, the third motor 20 is started, the output shaft of the third motor 20 drives the second connecting rod 21 to rotate, the first connecting rod 19 is driven to perform a pendulum type motion reciprocating left and right, the first connecting rod 19 drives the round rod 18 to perform a transverse reciprocating motion, so that the two supporting blocks 16 are driven to respectively perform reciprocating sliding on the corresponding sliding rods 15, the rectangular frame 6, the screen 7 and the surfing rods 22 are driven to perform reciprocating motion, so that the other two supporting blocks 16 are driven to respectively perform reciprocating sliding on the corresponding sliding rods 15, make four springs 17 by reciprocal compression or tensile, open first motor 4 afterwards, the output shaft of first motor 4 drives crushing roller 3 and rotates in crushing case 2, drop into the resin sand raw materials through the feeder hopper afterwards, bold resin sand raw materials get into in crushing case 2 and are broken into the granule by crushing roller 3, the resin sand granule drops to screen cloth 7 through the relief hole of crushing case 2 and is sieved, tiny granule drops to the bottom of box 1, up to standard granule discharges through discharge opening 5, through so setting up, thereby can effectively improve the screening effect to the resin sand, can effectively guarantee product quality, the production efficiency of resin sand has effectively been improved, simultaneously the dust in box 1 is sucked into water tank 11, a plurality of pivoted annular otter boards 13 are broken to great bubble, increase the area of contact of air and water, make the dust to be stayed in aqueous, through setting up like this to can realize the quick effective processing to dust in the resin sand production process, and then avoid dust polluted air, can guarantee good resin sand production environment.

It should be noted that, in this document, 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.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing are only preferred embodiments of the present invention, and it should be noted that there are practically unlimited specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features described above can also be combined in a suitable manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims (7)

1. The utility model provides a raw materials breaker is used in resin sand production, includes box (1), its characterized in that: the device is characterized in that a crushing box (2) is fixedly installed in the box body (1), a crushing roller (3) is rotatably installed in the crushing box (2), a first motor (4) is fixedly installed on one side of the box body (1), an output shaft of the first motor (4) is welded with one end of the crushing roller (3), a discharge hole (5) is formed in one side, away from the first motor (4), of the box body (1), a rectangular frame (6) obliquely arranged penetrates through the discharge hole (5) in a sliding mode, the rectangular frame (6) is located below the crushing box (2), a screen (7) is fixedly installed in the rectangular frame (6), a flow guide cover (8) is fixedly arranged on the inner wall of the top of the box body (1) in a penetrating mode, an air pump (9) is fixedly arranged on the top of the flow guide cover (8), an exhaust pipe (10) is fixedly arranged on an exhaust port of the air pump (9), a water tank (11) is fixedly installed on one side, away from the first motor (4), a cylinder (12) with an opening at the top, a plurality of exhaust pipes (12) are fixedly installed in the water tank (11), and a plurality of exhaust pipes (12) extend to the inner side of the cylinder (13), the bottom of the water tank (11) is fixedly provided with a second motor (14), and an output shaft of the second motor (14) extends into the water tank (11) and is welded with the bottom of the cylinder (12).

2. The raw material crusher for producing resin sand according to claim 1, wherein: the box body (1) further comprises two sliding rods (15), the sliding rods (15) are fixedly installed in the box body (1), the sliding rods (15) are obliquely arranged below the rectangular frame (6), the sliding sleeves on the sliding rods (15) are provided with two supporting blocks (16), the top ends of the supporting blocks (16) are welded at the bottom of the rectangular frame (6) in a four-to-four mode, the supporting blocks (16) are arranged in a rectangular array mode, the sliding sleeves on the sliding rods (15) are provided with two springs (17), the two ends, close to each other, of the springs (17) are respectively in contact with the corresponding supporting blocks (16), the two supporting blocks (16) of the discharge hole (5) are far away from the supporting blocks, the same round rod (18) is welded on the two supporting blocks (16), the first connecting rod (19) is rotatably sleeved on the round rod (18), a third motor (20) is fixedly installed in the box body (1), a second connecting rod (21) is fixedly installed on an output shaft of the third motor (20), and the other end of the second connecting rod (21) is hinged to the bottom end of the first connecting rod (19).

3. The raw material crusher for producing resin sand according to claim 1, wherein: the top of the rectangular frame (6) is welded with a plurality of surf sticks (22), the cross section of each surf stick (22) is of a triangular structure, and the surf sticks (22) are in contact with the top of the screen (7).

4. The raw material crusher for producing resin sand according to claim 1, wherein: the top fixed mounting of box (1) has the feeder hopper, feeder hopper and broken case (2) intercommunication, it has the relief hole to run through on the bottom inner wall of broken case (2), the relief hole is located the top of screen cloth (7), the waste discharge mouth has been seted up to one side that water tank (11) were kept away from in box (1), be equipped with the apron on the waste discharge mouth.

5. The raw material crusher for producing resin sand according to claim 1, wherein: the utility model discloses a crushing roller, including box (1), broken case (2), the one side inner wall of keeping away from water tank (11) and broken case (1) are close to one side of water tank (11) and all run through and have first through-hole, the both ends of broken roller (3) extend to respectively in the first through-hole that corresponds, the output shaft of first motor (4) rotates and installs in the first through-hole that corresponds.

6. The raw material crusher for producing resin sand according to claim 1, wherein: the top of water tank (11) is equipped with the water inlet, the fixed and intercommunication in one side that first motor (4) were kept away from in water tank (11) has the drain pipe, be equipped with the valve on the drain pipe, it has a plurality of small openings to run through on the bottom inner wall of drum (12), it has the second through-hole to run through on the bottom inner wall of water tank (11), the output shaft of second motor (14) rotates and runs through the second through-hole, fixed mounting has the sealing washer in the second through-hole, the sealing washer rotates the cover and establishes on the output shaft of second motor (14).

7. The raw material crusher for producing resin sand according to claim 2, characterized in that: a third through hole penetrates through the supporting block (16), the sliding rod (15) penetrates through the third through hole in a sliding mode, two annular clamping blocks are fixedly sleeved on the sliding rod (15), and one ends, far away from each other, of the two springs (17) are respectively in contact with the corresponding annular clamping blocks.

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