CN114700136A - A kind of grain layered grinding online detection intelligent processing device and processing method thereof - Google Patents

Abstract

The invention discloses an intelligent processing device for grain layered grinding on-line detection and a processing method thereof, including a grain layered grinding detection device, the grain layered grinding detection device is provided with a frame, and a cone in the center of the inner bottom of the frame is provided. There is a lower grinding disc B above the shaped base, a driving motor B is provided in the top center of the upper grinding disc B just above the lower grinding disc B, and a material receiving and lowering hopper is provided on the outer side of the stopper ring outside the driving motor B. There is a fine material feeding pipe under the feeding nozzle on the right edge of the feeding plate above the mounting bracket B on the outer side of the motor B, and a coarse material feeding nozzle is provided on the edge of one side of the grain screen, and the center above the mounting bracket A is directly above the grain screen. There is a lower grinding disc A above the grinding disc installation chassis. The grain layered grinding detection device realizes layered grinding, has high grinding efficiency, and rejects the pellets that do not meet the specifications during the grinding process.

Description

A kind of grain layered grinding online detection intelligent processing device and processing method thereof

technical field

The invention relates to the technical field of on-line detection of grain stratified grinding, in particular to an intelligent processing device for on-line detection of grain stratified grinding.

Background technique

"Grain" covers a wide range, including rice, wheat, millet, soybeans, etc. and other grains. Cereals include rice, wheat, millet, soybeans, etc., mainly plant seeds and fruits. It is a traditional staple food for many Asian people.

Many grains need to be ground before eating. At present, many grinding devices use ramming and grinding, or use machine grinding rollers for grinding, but these are unilateral grinding, and the grinding efficiency of grains is low. , the grains milled at the same time vary in size.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an intelligent processing device for on-line detection of layered grinding of grains, which realizes layered grinding, has high grinding efficiency, and removes grains that do not meet specifications during the grinding process, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: an intelligent processing device for on-line detection of grain layered grinding, including a grain layered grinding detection device, the grain layered grinding detection device is provided with a frame, and the inner side of the frame is provided with a frame. There is a conical base in the center of the bottom of the machine, and the conical base is fixedly installed with the bottom of the frame. The top of the conical base is provided with a lower grinding disc B, and the upper grinding disc B is set directly above the lower grinding disc B. , the lower grinding disc B and the upper grinding disc B are installed together, the upper center of the upper grinding disc B is provided with a driving motor B, the outer side of the driving motor B is provided with a mounting bracket B, and the driving motor B is fixedly connected with the mounting bracket B , the mounting bracket B is fixedly connected with the inner wall of the rack;

The top center of the frame is provided with a drive motor A, the push shaft of the drive motor A is installed downward, the rotating shaft of the drive motor A is provided with an upper grinding disc A, and a lower grinding disc is arranged directly below the upper grinding disc A A, the upper grinding disc A is installed with the lower grinding disc A, the bottom center of the lower grinding disc A is provided with a grinding disc mounting base, the bottom of the grinding disc mounting base is provided with a mounting bracket A, and the edge of the mounting bracket A is with the inner wall of the rack Solder connection.

Preferably, the outer side of the drive motor B above the upper grinding disc B is provided with a baffle ring, the baffle ring is in the shape of a cylindrical tube, and the bottom edge of the baffle ring is connected with the upper surface of the upper grinding disc B by welding. The inside of the grinding disc B is provided with a lower hopper B, the lower hopper B penetrates the upper grinding disc B in the vertical direction, and the lower hopper B inside the upper grinding disc B is installed in cooperation with the retaining ring;

The upper part of the feeding hopper B is provided with a feeding feeding hopper, and the feeding feeding hopper is communicated with the feeding hopper B. The feeding feeding hopper is arranged on the outer side of the retaining ring, and the surrounding edges of the feeding feeding hopper are connected with the inner wall of the frame. Fixed connection.

Preferably, a lower hopper A is provided on the outer side of the driving motor A, the bottom end of the lower hopper A is connected with the lower hopper inside the upper grinding disc A, and the inner center of the lower hopper A is provided with a motor installation groove.

Preferably, a grain screen and a feeding plate are arranged between the installation bracket A and the installation bracket B, the grain screen is arranged directly above the feeding plate, and the inner center of the grain screen and the feeding plate is provided with an installation shaft, so The edge of the grain sieve is in the shape of a gear, one side edge of the grain sieve is provided with a sieve driving motor, the sieve driving motor is fixedly connected with the frame, and the gear on the rotating shaft of the sieve driving motor meshes with the gear on the edge of the grain sieve. The other side edge of the grain sieve is provided with a coarse material receiving nozzle, one end of the coarse material receiving nozzle is provided with a material receiving pipe, and the bottom end of the material receiving pipe is provided with a coarse material receiving groove;

One side edge of the feeding plate is provided with a fine material feeding nozzle, the upper port of the fine material feeding nozzle is installed in cooperation with one side edge of the feeding plate, and the bottom end of the fine material feeding nozzle is provided with a fine material guide. The fine material guide pipe is arranged on the outer wall of the frame, and the bottom end of the fine material guide pipe is provided with a receiving groove, and the receiving groove is fixedly connected with the outer wall of the frame.

Preferably, the upper grinding disc A and the upper grinding disc B have the same structure, and a connecting bracket is provided between the lower material chute inside the upper grinding disc A and the upper grinding disc B and the connecting block in the center, and one end of the connecting bracket is It is fixedly connected to the grinding disc, the other end of the connecting bracket is fixedly connected to the central connecting block, the top of the connecting bracket is wedge-shaped, and the inner and lower surfaces of the upper grinding disc A and the upper grinding disc B are both provided with grinding tooth grooves.

Preferably, the lower grinding disc A and the lower grinding disc B are both conical, and the outer surfaces of the lower grinding disc A and the lower grinding disc B are both provided with grinding tooth grooves.

Preferably, the fine material receiving nozzle forms an included angle of 45° with the horizontal direction, a light sensor and a gas nozzle are arranged on the pipe wall of the fine material receiving nozzle, and a solenoid valve is arranged inside the gas nozzle, and the light The front side of the sensor is provided with a light receiver, and the front side of the gas nozzle is provided with a discharge hole.

Preferably, the material receiving and lowering hopper is funnel-shaped, and one side edge of the material receiving and lowering hopper is provided with a feeding port, the feeding port penetrates the side wall of the frame, and the feeding port forms an included angle of 45° with the horizontal direction.

Preferably, a grain grinding detection method of an intelligent processing device for grain layered grinding online detection comprises the following steps:

Step 1. Put the material to be ground inside the lower hopper A, the material enters between the upper grinding disc A and the lower grinding disc A from the lower hopper A, and the driving motor A drives the upper grinding disc A to rotate at a constant speed to grind the material. , the ground material is discharged onto the grain sieve from the lower edge gap between the upper grinding disc A and the lower grinding disc A;

Step 2: The sieve drive motor drives the grain sieve to reciprocate, and the screened fine material enters the receiving plate, and the fine material enters the fine material receiving nozzle under the action of the receiving plate. The light sensor detects the passing materials. The materials that meet the standard smoothly pass through the fine material receiving nozzle and then enter the fine material guide pipe. When the materials that do not meet the standard pass through the gas nozzle, the gas nozzle blows the material away;

Step 3. The coarse material left above the grain sieve enters the coarse material receiving nozzle and is finally received. The received coarse material is sent to the receiving and lowering hopper through the feeding port on the side wall of the frame. The receiving and lowering hopper is sent to between the upper grinding disc B and the lower grinding disc B for grinding;

Step 4: The final non-standard materials are ground between the upper grinding disc B and the lower grinding disc B and all meet the standard, and the ground materials that meet the standard are discharged into a material storage tank outside the grain layered grinding detection device.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The surrounding edges of the receiving and lowering hopper are fixedly connected to the inner wall of the frame. The receiving and lowering hopper uses the slope of the receiving and lowering hopper to send the received coarse materials to between the upper grinding disc B and the lower grinding disc B. For grinding, it has the functions of receiving and feeding materials;

(2) One side edge of the grain sieve is provided with a sieve drive motor, the sieve drive motor is fixedly connected to the frame, and the gear on the shaft of the sieve drive motor meshes with the gear on the edge of the grain sieve, and the grain sieve seat is driven by the rotation of the sieve drive motor Reciprocating rotation, so as to realize the grain size separation of the ground grains by the grain sieve;

(3) The structure of the upper grinding disc A and the upper grinding disc B is the same, and a connecting bracket is provided between the upper grinding disc A and the upper grinding disc B and the middle connecting block, and one end of the connecting bracket is fixedly connected with the grinding disc The top of the connecting bracket is wedge-shaped, and the inner and lower surfaces of the upper grinding disc A and the upper grinding disc B are provided with grinding tooth grooves. The connecting bracket inside the upper grinding disc A and the upper grinding disc B can not only make the upper grinding Grinding disc B maintains good integrity, and at the same time allows grains to enter the interior of the grinding disc smoothly;

(4) A light sensor and a gas nozzle are arranged on the pipe wall of the fine material receiving nozzle, a solenoid valve is arranged inside the gas nozzle, and a light receiver is arranged on the front of the light sensor, and the size of the ground grain is detected by the light sensor , so that the quality of the ground grains is more uniform;

(5) The receiving plate forms an angle of 15° with the horizontal plane. The receiving plate can more easily separate the coarse and fine materials that have been screened and separated by using the vibration of the equipment itself and the gravity of the grain itself;

(6) The grain layered grinding detection device realizes layered grinding, has high grinding efficiency, and removes the pellets that do not meet the specifications during the grinding process, so that the quality of the ground grains is better.

Description of drawings

Fig. 1 is the sectional view of the grain layered grinding detection device of the present invention;

Fig. 2 is the top view of the lower hopper of the present invention;

Fig. 3 is the grain sieve schematic diagram of the present invention;

4 is a top view of the upper grinding disc A of the present invention;

Fig. 5 is the sectional view of the lower grinding disc A of the present invention;

6 is a cross-sectional view of a joint bracket of the present invention;

7 is a cross-sectional view of the connection between the upper grinding disc A and the lower grinding disc A of the present invention;

Fig. 8 is a schematic diagram of the connection between the feeding nozzle and the fine material feeding pipe of the present invention.

In the figure: 1. Grain layered grinding detection device; 2. Frame; 3. Drive motor A; 4. Lower hopper A; 5. Upper grinding disc A; 6. Lower grinding disc A; 7. Milling disc mounting base; 8 , installation bracket A; 9, grain sieve; 10, sieve drive motor; 11, installation bracket B; 12, material receiving and lowering hopper; 13, driving motor B; 14, material retaining ring; 15, upper grinding disc B; 16, Lower grinding disc B; 17, motor installation slot; 18, conical base; 19, fine material guide pipe; 20, storage groove; 21, connecting bracket; 22, feeding plate; 23, fine material feeding nozzle; 24. Lower hopper B; 25. Light sensor; 26. Air nozzle; 27. Coarse material receiving nozzle.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-8, the present invention provides a technical solution: an intelligent processing device for on-line detection of grain layered grinding, including a grain layered grinding detection device 1, and the grain layered grinding detection device 1 is provided with a frame 2, The bottom center of the inner side of the frame 2 is provided with a conical base 18. The conical base 18 is fixedly installed with the bottom of the frame 2, and a lower grinding disc B16 is arranged above the conical base 18. There is an upper grinding disc B15 above, the lower grinding disc B16 is fitted with the upper grinding disc B15, a driving motor B13 is arranged in the upper center of the upper grinding disc B15, and a mounting bracket B11 is arranged on the outer side of the driving motor B13. The driving motor B13 and the The mounting bracket B11 is fixedly connected, and the mounting bracket B11 is fixedly connected to the inner wall of the rack 2 .

The top center of the frame 2 is provided with a drive motor A3, the outer side of the drive motor A3 is provided with a lower hopper A4, the bottom end of the lower hopper A4 is communicated with the lower trough inside the upper grinding disc A5, and the inner center of the lower hopper A4 is provided with a motor Install slot 17.

The push shaft of the driving motor A3 is installed downward, the rotating shaft of the driving motor A3 is provided with an upper grinding disc A5, and a lower grinding disc A6 is arranged directly under the upper grinding disc A5. The bottom center of the grinding disc A6 is provided with a grinding disc mounting base 7 , and the bottom of the grinding disc mounting base 7 is provided with a mounting bracket A8 , and the edge of the mounting bracket A8 is welded to the inner wall of the frame 2 .

The outer side of the drive motor B13 above the upper grinding disc B15 is provided with a stopper ring 14, the stopper ring 14 is cylindrical and tubular, and the bottom edge of the stopper ring 14 is welded to the upper surface of the upper grinding disc B15. There is a lower hopper B24, the lower hopper B24 penetrates the upper grinding disc B15 in the vertical direction, and the lower hopper B24 inside the upper grinding disc B15 is installed in cooperation with the stopper ring 14.

The upper part of the feeding hopper B24 is provided with a feeding feeding hopper 12. The feeding feeding hopper 12 is in the shape of a funnel. A feeding port is provided on one side edge of the feeding feeding hopper 12. The mouth forms an included angle of 45° with the horizontal direction.

The material receiving and lowering hopper 12 is communicated with the lowering hopper B24, the material receiving and lowering hopper 12 is arranged on the outer side of the material retaining ring 14, the surrounding edges of the material receiving and lowering hopper 12 are fixedly connected with the inner wall of the frame 2, and the material receiving and lowering hopper 12 will receive the The coarse materials are sent to the upper grinding plate B15 and the lower grinding plate B16 for grinding by the slope of the receiving lower hopper 12, which has the function of receiving and feeding.

The upper grinding disc A5 has the same structure as the upper grinding disc B15, and a connecting bracket 21 is provided between the feeding chute inside the upper grinding disc A5 and the upper grinding disc B15 and the connecting block in the center, and one end of the connecting bracket 21 is fixedly connected with the grinding disc. The other end of the connecting bracket 21 is fixedly connected with the central connecting block, the top of the connecting bracket 21 is wedge-shaped, the inner and lower surfaces of the upper grinding disc A5 and the upper grinding disc B15 are provided with grinding tooth grooves, and the upper grinding disc A5 and the upper grinding disc are provided with grinding tooth grooves. The connecting bracket 21 inside the B15 can not only maintain the good integrity of the upper grinding disc A5 and the upper grinding disc B15, but also enable the grains to enter the interior of the grinding disc smoothly.

Between the mounting bracket A8 and the mounting bracket B11, a grain screen 9 and a feeding plate 22 are provided. The grain screen 9 is arranged directly above the feeding plate 22. The grain screen 9 and the inner center of the feeding plate 22 are provided with a mounting shaft. The grain screen The edge of the sieve 9 is gear-shaped, a sieve driving motor 10 is arranged on one side edge of the grain sieve 9, the sieve driving motor 10 is fixedly connected with the frame 2, and the gear on the rotating shaft of the sieve driving motor 10 meshes with the gear on the edge of the grain sieve 9. The reciprocating rotation of the seat of the grain screen 9 is driven by the rotation of the screen driving motor 10 , so that the grain size separation of the grains after grinding is realized by the grain screen 9 .

The other side edge of the grain sieve 9 is provided with a coarse material receiving nozzle 27, a feeding pipe is provided under one end of the coarse material receiving nozzle 27, and the coarse material receiving groove is provided at the bottom end of the feeding pipe, and the grain sieve 9 will The grains that are milled for the first time are screened, and the coarse material is finally separated from the fine material.

The feeding plate 22 forms an included angle of 15° with the horizontal plane. The feeding plate 22 utilizes the vibration of the equipment itself and the gravitational effect of the grain itself to separate the coarse and fine materials that have been screened and separated. The side edge is provided with a fine material receiving nozzle 23, and the fine material receiving nozzle 23 forms an included angle of 45° with the horizontal direction. The pipe wall of the fine material receiving nozzle 23 is provided with a light sensor 25, a gas nozzle 26, and the There is a solenoid valve inside, and a light receiver is arranged on the front of the light sensor 25. The light sensor 25 is used to detect the size of the ground grains, so that the quality of the ground grains is more uniform. The material hole, the upper port of the fine material receiving nozzle 23 is installed in cooperation with one side edge of the material receiving plate 22, the fine material feeding pipe 19 is provided under the bottom end of the fine material feeding nozzle 23, and the fine material feeding pipe 19 is provided On the outer wall of the frame 2 , the bottom end of the fine material guide pipe 19 is provided with a receiving groove 20 , and the receiving groove 20 is fixedly connected with the outer wall of the frame 2 .

The lower grinding disc A6 and the lower grinding disc B16 are both conical, and the outer surfaces of the lower grinding disc A6 and the lower grinding disc B16 are provided with grinding tooth grooves, and the grains can be better ground through the grinding tooth grooves.

Grain stratified grinding online detection The grain grinding detection method of the intelligent processing device: put the materials to be ground inside the lower hopper A4, the materials enter from the lower hopper A4 to between the upper grinding disc A5 and the lower grinding disc A6, drive the motor A3 The upper grinding disc A5 is driven to rotate at a constant speed to grind the materials, and the ground materials are discharged onto the grain sieve 9 from the lower edge gap between the upper grinding disc A5 and the lower grinding disc A6.

The sieve drive motor 10 drives the grain sieve 9 to reciprocate, and the screened fine material enters the feeding plate 22, and the fine material enters the fine material feeding nozzle 23 under the action of the feeding plate 22, and the fine material feeding nozzle The light sensor 25 inside 23 detects the passing materials. The materials that meet the standard pass through the fine material receiving nozzle 23 smoothly and then enter the fine material guide pipe. When the materials that do not meet the standard pass through the gas nozzle 26, the gas nozzle blows the material away;

The coarse material left above the grain sieve 9 enters the coarse material receiving nozzle 27 and is finally received. It is sent from the receiving and lowering hopper 12 to between the upper grinding disc B15 and the lower grinding disc B16 for grinding.

In the end, the materials that do not meet the standard are ground between the upper grinding disc B15 and the lower grinding disc B16 and all meet the standard.

The grain layered grinding detection device realizes layered grinding, has high grinding efficiency, and removes the pellets that do not meet the specifications during the grinding process, so that the quality of the ground grains is better.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a cereal layering grinds on-line measuring intelligent processingequipment, includes cereal layering and grinds detection device (1), its characterized in that: the grain layered grinding detection device comprises a grain layered grinding detection device (1), and is characterized in that a rack (2) is arranged on the grain layered grinding detection device (1), a conical base (18) is arranged in the center of the bottom of the inner side of the rack (2), the conical base (18) is fixedly mounted with the bottom of the rack (2), a lower grinding disc B (16) is arranged above the conical base (18), an upper grinding disc B (15) is arranged right above the lower grinding disc B (16), the lower grinding disc B (16) and the upper grinding disc B (15) are mounted in a matched manner, a driving motor B (13) is arranged in the center of the upper grinding disc B (15), a mounting bracket B (11) is arranged on the outer side of the driving motor B (13), the driving motor B (13) is fixedly connected with the mounting bracket B (11), and the mounting bracket B (11) is fixedly connected with the inner wall of the rack (2);

the top central authorities of frame (2) are equipped with driving motor A (3), and the installation downwards of the axle that pushes away of driving motor A (3), be equipped with abrasive disc A (5) in the pivot of driving motor A (3), be equipped with abrasive disc A (6) down under abrasive disc A (5), go up abrasive disc A (5) and abrasive disc A (6) cooperation installation down, the bottom central authorities of abrasive disc A (6) are equipped with mill installation base (7) down, and the bottom of mill installation base (7) is equipped with installing support A (8), the edge of installing support A (8) and the inner wall welded connection of frame (2).

2. The grain layered grinding online detection intelligent processing device according to claim 1, characterized in that: a material blocking ring (14) is arranged on the outer side of a driving motor B (13) above the upper grinding disc B (15), the material blocking ring (14) is in a cylindrical tube shape, the bottom edge of the material blocking ring (14) is in welded connection with the upper surface of the upper grinding disc B (15), a lower hopper B (24) is arranged inside the upper grinding disc B (15), the lower hopper B (24) penetrates through the upper grinding disc B (15) in the vertical direction, and the lower hopper B (24) inside the upper grinding disc B (15) is installed with the material blocking ring (14) in a matched mode;

hopper (12) under the material is equipped with in the top of hopper B (24) down, connects the material hopper (12) and hopper B (24) intercommunication down, connect the material hopper (12) down and set up in the outside of keeping off material circle (14), connect the material hopper (12) down the inner wall fixed connection of all around edge and frame (2).

3. The grain layered grinding online detection intelligent processing device according to claim 1, characterized in that: the outside of driving motor A (3) is equipped with down hopper A (4), and the bottom of down hopper A (4) and the inside feed chute intercommunication of last abrasive disc A (5), the inside central authorities of lower hopper A (4) are equipped with motor mounting groove (17).

4. The grain layered grinding online detection intelligent processing device according to claim 1, characterized in that: a grain sieve (9) and a material receiving plate (22) are arranged between the mounting support A (8) and the mounting support B (11), the grain sieve (9) is arranged right above the material receiving plate (22), a mounting shaft is arranged in the centers of the grain sieve (9) and the material receiving plate (22), the edge of the grain sieve (9) is in a gear shape, a sieve driving motor (10) is arranged at the edge of one side of the grain sieve (9), the sieve driving motor (10) is fixedly connected with the rack (2), a gear on a rotating shaft of the sieve driving motor (10) is mutually meshed with a gear at the edge of the grain sieve (9), a coarse material receiving nozzle (27) is arranged at the edge of the other side of the grain sieve (9), a material receiving pipe is arranged below one end of the coarse material receiving nozzle (27), and a coarse material receiving groove is arranged at the bottom end of the material receiving pipe;

connect one side edge of flitch (22) to be equipped with thin material and connect material mouth (23), the top port that thin material connects material mouth (23) and a side edge cooperation installation that connects flitch (22), the bottom below that thin material connects material mouth (23) is equipped with thin material passage (19), thin material passage (19) set up the outer wall in frame (2), and the bottom of thin material passage (19) is equipped with accomodates groove (20), accomodate the outer wall fixed connection of groove (20) and frame (2).

5. The grain layered grinding online detection intelligent processing device according to claim 1, characterized in that: go up abrasive disc A (5) and the structure of last abrasive disc B (15) the same, go up abrasive disc A (5) and be equipped with between the linking piece of the inside feed chute of last abrasive disc B (15) and central authorities linking support (21), the one end and the mill fixed connection that link up support (21), the other end that links up support (21) and the linking piece fixed connection of central authorities, the top that links up support (21) is the wedge, the inboard lower surface of going up abrasive disc A (5) and last abrasive disc B (15) all is equipped with the grinding tooth's socket.

6. The intelligent processing device for the online detection of the layered grinding of grains according to claim 1, characterized in that: lower abrasive disc A (6) and lower abrasive disc B (16) are coniform, and the surface of lower abrasive disc A (6) and lower abrasive disc B (16) all is equipped with the grinding tooth's socket.

7. The grain layered grinding online detection intelligent processing device according to claim 4, characterized in that: thin material connects material mouth (23) and horizontal direction to become 45 contained angles, be equipped with light sensor (25), air cock (26) on the pipe wall of thin material connects material mouth (23), the inside of air cock (26) is equipped with the solenoid valve, the front of light sensor (25) is equipped with light receiver, and the face-to-face of air cock (26) is equipped with the discharge opening.

8. The grain layered grinding online detection intelligent processing device according to claim 4, characterized in that: connect material hopper (12) down for leaking hopper-shaped, connect material hopper (12) down one side edge be equipped with the pan feeding port, the pan feeding mouth runs through the lateral wall of frame (2), pan feeding mouth and horizontal direction become 45 contained angles.

9. The grain grinding detection method for realizing the intelligent processing device for online detection of grain layered grinding as claimed in claim 1 comprises the following steps:

placing materials to be ground in a lower hopper A (4), enabling the materials to enter a space between an upper grinding disc A (5) and a lower grinding disc A (6) from the lower hopper A (4), driving the upper grinding disc A (5) to rotate at a constant speed by a driving motor A (3), grinding the materials, and discharging the ground materials onto a grain sieve (9) from a lower edge gap between the upper grinding disc A (5) and the lower grinding disc A (6);

secondly, a sieve driving motor (10) drives a grain sieve (9) to rotate in a reciprocating mode, sieved fine materials enter a material receiving plate (22), the fine materials enter a fine material receiving nozzle (23) under the action of the material receiving plate (22), a light sensor (25) in the fine material receiving nozzle (23) detects the passing materials, the up-to-standard materials smoothly pass through the fine material receiving nozzle (23) and then enter a fine material guide pipe, and the materials are blown away by an air nozzle when the up-to-standard materials pass through the air nozzle (26);

step three, coarse materials left above the grain sieve (9) enter a coarse material receiving nozzle (27) and are finally received, the received coarse materials are sent to a material receiving lower hopper (12) through a material inlet on the side wall of the rack (2), and the coarse materials are sent to a position between an upper grinding disc B (15) and a lower grinding disc B (16) from the material receiving lower hopper (12) to be ground;

and step four, grinding the materials which do not reach the standard between the upper grinding disc B (15) and the lower grinding disc B (16) until all the materials reach the standard, and discharging the materials which reach the standard into a material accommodating groove on the outer side of the grain layered grinding detection device (1).

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