A grain grinding device for primary food processing of agricultural products

Abstract

The invention discloses a grain grinding device for primary food processing of agricultural products, and relates to the technical field of grinding devices. The grain grinding device for primary food processing of agricultural products comprises a device frame and a feeding device; wherein a motor is fixedly mounted on the surface of the device frame, a transmission shaft is fixedly mounted on the output end of the motor, a grinding roller is fixedly mounted on the circumferential surface of the transmission shaft, and a grinding bucket is fixedly mounted inside the device frame; wherein the feeding device comprises a storage frame, a discharge frame, a driven shaft, a discharge plate, a support frame, a scattering plate, a baffle, an L-shaped plate and a receiving rod; the grain grinding device for primary food processing of agricultural products can achieve quantitative and stable discharge of grains, ensure the quality consistency of the ground grain powder or particles, and simultaneously discharge the grains in multiple times, avoid the grains from accumulating at the angle between the grinding bucket and the grinding roller, resulting in insufficient grinding, and improve the grinding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to a grain grinding device for primary food processing of agricultural products. Background Art

[0002] Grain milling equipment is an important equipment for processing grains (such as wheat, corn, rice, etc.) into powder. These powders can be used to make food raw materials such as flour, starch, meal, oatmeal, etc., which is one of the key links in the food processing industry.

[0003] The patent with the patent announcement number CN220176975U relates to a grain grinding device for agricultural products, and the utility model relates to the technical field of agricultural products. The patent includes a material receiving box, both sides of the material receiving box are fixedly connected with a bracket, a grinding bucket is fixedly connected between the two brackets, a first grinding roller is rotatably connected between the side walls of the grinding bucket, and a material leakage port and a plurality of powder leakage holes are provided on the circumferential side wall of the grinding bucket, a second motor is fixedly connected to one side of one bracket, and the output end of the second motor movably penetrates a side wall of the grinding bucket and is fixed to one side of the first grinding roller, a cleaning block is arranged between the first grinding roller and the grinding bucket, and a cleaning mechanism is arranged on the cleaning block, and the material receiving box, the bracket, the second motor, the grinding bucket, the cleaning block, the first grinding roller and the cleaning mechanism cooperate to remove the wheat flour left on the surface of the first grinding roller and the grinding bucket by moving the cleaning block after the first grinding roller and the grinding bucket finish grinding the wheat.

[0004] In the above patent, the wheat flour left on the surface of the first grinding roller and the grinding bucket is removed by moving the cleaning block. However, when grinding the grains, it is difficult for the grains inside the grinding bucket to evenly enter the grinding track of the grinding roller. When too much grain is discharged, the grinding efficiency will be reduced, and too little grain will affect the efficiency of grain grinding. Therefore, a grain grinding device for primary processing of agricultural products with a better feeding device is designed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a grain grinding device for primary food processing of agricultural products, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a grain grinding device for primary processing of agricultural products, comprising an equipment frame and a feeding device; wherein a motor is fixedly mounted on the surface of the equipment frame, a transmission shaft is fixedly mounted on the output end of the motor, a grinding roller is fixedly mounted on the circumferential surface of the transmission shaft, and a grinding bucket is fixedly mounted inside the equipment frame; wherein the feeding device comprises a storage frame, a discharge frame, a driven shaft, a discharge plate, a support frame, a spreading plate, a baffle, an L-shaped plate and a receiving rod, the output end of the motor rotates to drive the transmission shaft to rotate, the transmission shaft rotates to drive the grinding roller to rotate, the grinding roller rotates to grind the grains under the action of the grinding bucket, the storage frame is fixedly penetrated through the upper inner and outer walls of the equipment frame, the discharge frame is fixedly penetrated through the lower inner and outer walls of the storage frame, the driven shaft is fixed The discharging plate passes through the inner and outer walls of the discharging frame, and is fixedly mounted on the circumferential surface of the driven shaft. The supporting frame is fixedly mounted on the surface of the grinding bucket. The spreading disc is slidably mounted above the supporting frame. The baffle is fixedly mounted on the inner wall of the grinding bucket. The L-shaped plate is fixedly mounted on the surface of the spreading disc. The receiving rod is fixedly mounted on the outer wall of the discharging frame. The driven shaft and the transmission shaft are connected by a transmission belt. A spreading hole is provided on the surface of the spreading disc. The baffle is slidably connected to the spreading disc. The receiving rod slides through the left and right walls of the L-shaped plate. The end of the L-shaped plate away from the spreading disc slides through the inner and outer walls of the discharging frame. A discharging port is provided at the bottom of the discharging frame. The discharging plate rotates to introduce the material inside the storage frame into the inside of the discharging frame, and discharges it through the discharging port on the surface of the discharging frame, thereby realizing quantitative and stable discharge of grains.

[0007] According to the above technical solution, the surface of the discharge plate is set as bevel surface one, and the end of the L-shaped plate close to the discharge plate is set as bevel surface two. The rotation of the discharge plate drives the L-shaped plate to move away from the driven shaft through bevel surface one and bevel surface two. A spring No. 1 is arranged between the receiving rod and the discharge frame, and the spring No. 1 can drive the L-shaped plate to reset.

[0008] According to the above technical scheme, the surface of the spreading plate is provided with an extrusion device for improving the grain grinding effect, and also includes a throwing device, the extrusion device includes a connecting block, a conduction rod, an extrusion frame, a receiving block, a fixed block and a sliding plate, the spreading plate reciprocates left and right to drive the connecting block to reciprocate left and right, and the connecting block reciprocates left and right to drive the conduction rod to reciprocate, the connecting block is fixedly installed below the spreading plate, the conduction rod is rotatably installed inside the connecting block, the extrusion frame is slidably installed on the inner wall of the grinding bucket, the receiving block is fixedly installed on the surface of the extrusion frame, the fixed block is fixedly installed below the spreading plate, the sliding plate slides through the left and right walls of the support frame, the end of the conduction rod away from the connecting block is rotatably connected to the receiving block, and the extrusion frame reciprocates to reciprocate and extrude the grain at the angle between the grinding bucket and the grinding roller.

[0009] According to the above technical solution, the surface of the extrusion frame is set as bevel surface three, which can effectively shovel up the accumulated grains. The end of the fixed block close to the sliding plate is set as arc surface one, and the end of the sliding plate close to the fixed block is set as arc surface two. The fixed block moves through arc surface one and arc surface two to squeeze the sliding plate to move.

[0010] According to the above technical solution, a telescopic elastic rod is fixedly installed at one end of the sliding plate close to the support frame, and the free end of the telescopic elastic rod is fixedly connected to the support frame. The sliding plate moves to squeeze the telescopic elastic rod and resets under its action. The sliding plate resets and contacts the fixed block to generate vibration.

[0011] According to the above technical scheme, the throwing device includes a rotating rod, a throwing plate, a tooth block and a driven block. The movement of the extrusion frame drives the rotating rod to move, the movement of the rotating rod drives the throwing plate to move, and the movement of the rotating rod drives the tooth block to move. The rotating rod rotates to penetrate the inner and outer walls of the extrusion frame, the throwing plate is fixedly installed on the circumferential surface of the rotating rod, the tooth block is fixedly installed on the circumferential surface of the rotating rod, and the driven block is fixedly installed on the inner wall of the grinding bucket. The rotation of the tooth block drives the throwing plate to rotate, and the rotation of the throwing plate throws up the grains on its surface. The thrown grains are re-contacted with the grinding bucket and ground under the action of the grinding roller.

[0012] According to the above technical solution, a receiving shaft is rotatably penetrated through the surface of the support frame, a guide plate is fixedly installed on the circumferential surface of the receiving shaft, a U-shaped rod is slidably installed inside the grinding bucket, and the rotation of the guide plate can enable the grain to enter the interior of the grinding bucket along its surface, thereby preventing the grain from entering the gap between the throwing plate and the extrusion frame during the throwing process.

[0013] According to the above technical solution, one end of the U-shaped rod close to the guide plate is set as arc surface three, and a torsion spring is arranged between the guide plate and the receiving shaft, and the torsion spring can drive the guide plate to reset.

[0014] The present invention provides a grain grinding device for primary processing of agricultural products. It has the following beneficial effects:

[0015] (1) The grain grinding device for primary processing of agricultural products drives the driven shaft and the discharge plate through the transmission belt to discharge the grains in the discharge frame, thereby achieving quantitative and stable discharge of the grains and ensuring the quality consistency of the ground grain powder or particles. At the same time, the discharged grains enter the top of the scattering plate and are discharged in multiple times under the action of the L-shaped plate and the baffle, thereby preventing the grains from accumulating at the angle between the grinding rollers of the grinding bucket and causing insufficient grinding, thereby improving the grinding efficiency.

[0016] (2) In the grain grinding device for primary processing of agricultural products, the movement of the spreading plate drives the extrusion frame to move back and forth inside the grinding bucket through the conduction rod, and reciprocates to squeeze the grains at the angle between the grinding bucket and the grinding roller, so that the grains accumulated at the angle are in more complete contact with the grinding roller, thereby improving the crushing and pulverizing process of the grains and improving the grain grinding efficiency. At the same time, the movement of the spreading plate realizes uniform discharge of the materials through the fixed block and the sliding plate, thereby preventing the grains from piling up and reducing the grinding efficiency, and further improving the grain grinding efficiency.

[0017] (3) In the grain grinding device for primary processing of agricultural products, when the extrusion frame moves upward, the grains on its surface are thrown up by the action of the rotating rod and the throwing plate. The thrown up grains are re-contacted with the grinding bucket and ground by the action of the grinding roller, thereby preventing excessive accumulation of grains from affecting subsequent grain grinding, further improving the grain grinding efficiency. At the same time, the conduction plate and the U-shaped rod prevent the grains from entering the gap between the throwing plate and the extrusion frame, thereby reducing subsequent maintenance costs and extending the service life of the equipment, thereby improving the equipment's grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the grinding bucket and the discharge frame of the present invention;

[0021] Figure 4 This is a schematic diagram of the position structure of the support frame and the material spreading plate of the present invention;

[0022] Figure 5 This is a schematic diagram of the position structure of the driven shaft and the discharge plate of the present invention;

[0023] Figure 6 For the present invention Figure 5 The enlarged structural diagram of part A in the middle;

[0024] Figure 7 This is a schematic diagram of the position structure of the material spreading plate and the material extrusion frame of the present invention;

[0025] Figure 8 It is a schematic diagram of the position structure of the support frame and the sliding plate of the present invention;

[0026] Fig. 9 It is a schematic diagram of the position structure of the ejector plate and the driven block of the present invention.

[0027] In the figure: 1. Equipment frame; 2. Transmission shaft; 3. Grinding roller; 4. Grinding bucket; 5. Storage frame; 6. Discharging frame; 7. Driven shaft; 8. Discharging plate; 9. Support frame; 10. Spreading plate; 11. Baffle; 12. L-shaped plate; 13. Receiver rod; 14. No. 1 spring; 151. Connecting block; 152. Conducting rod; 153. Extrusion frame; 154. Receiver block; 155. Fixed block; 156. Sliding plate; 157. Telescopic elastic rod; 161. Rotating rod; 162. Ejection plate; 163. Tooth block; 164. Driven block; 165. Receiver shaft; 166. Guide plate; 167. U-shaped rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 6 One embodiment of the present invention is: a grain grinding device for primary processing of agricultural products, comprising an equipment frame 1 and a feeding device; wherein a motor is fixedly mounted on the surface of the equipment frame 1, a transmission shaft 2 is fixedly mounted on the output end of the motor, a grinding roller 3 is fixedly mounted on the circumferential surface of the transmission shaft 2, and a grinding bucket 4 is fixedly mounted inside the equipment frame 1; wherein the feeding device comprises a storage frame 5, a discharge frame 6, a driven shaft 7, a discharge plate 8, a support frame 9, a spreading disc 10, a baffle 11, an L-shaped plate 12 and a receiving rod 13, the storage frame 5 is fixedly penetrated through the upper inner and outer walls of the equipment frame 1, the discharge frame 6 is fixedly penetrated through the lower inner and outer walls of the storage frame 5, the driven shaft 7 is fixedly penetrated through the inner and outer walls of the discharge frame 6, the discharge plate 8 is fixedly mounted on the circumferential surface of the driven shaft 7, the support frame 9 is fixedly mounted on the surface of the grinding bucket 4, and the spreading disc 10 is slidably mounted on the support frame 9. Above the frame 9, the baffle 11 is fixedly mounted on the inner wall of the grinding bucket 4, the L-shaped plate 12 is fixedly mounted on the surface of the spreading plate 10, and the receiving rod 13 is fixedly mounted on the outer wall of the discharge frame 6. The driven shaft 7 is connected to the transmission shaft 2 by a transmission belt. A spreading hole is provided on the surface of the spreading plate 10. The baffle 11 is slidably connected to the spreading plate 10, and the receiving rod 13 slides through the left and right walls of the L-shaped plate 12. The end of the L-shaped plate 12 away from the spreading plate 10 slides through the inner and outer walls of the discharge frame 6. A discharge port is provided below the discharge frame 6. The discharge plate 8 rotates to guide the material inside the storage frame 5 into the interior of the discharge frame 6, and discharges it through the discharge port on the surface of the discharge frame 6, thereby realizing quantitative and stable discharge of grains, ensuring the quality consistency of the ground grain powder or particles, avoiding uneven grinding due to insufficient or excessive discharge, and improving production efficiency.

[0030] The surface of the discharge plate 8 is set as bevel surface 1, and the end of the L-shaped plate 12 close to the discharge plate 8 is set as bevel surface 2. The rotation of the discharge plate 8 drives the L-shaped plate 12 to move away from the driven shaft 7 through the bevel surface 1 and the bevel surface 2. A spring No. 14 is set between the receiving rod 13 and the discharge frame 6, and the spring No. 14 can drive the L-shaped plate 12 to reset.

[0031] When this embodiment is working: the motor is started, the output end of the motor rotates to drive the transmission shaft 2 to rotate, the transmission shaft 2 rotates to drive the grinding roller 3 to rotate, the grinding roller 3 rotates to grind the grains under the action of the grinding bucket 4, and the transmission shaft 2 rotates while driving the driven shaft 7 to rotate through the transmission belt, the driven shaft 7 rotates to drive the discharge plate 8 to rotate, the discharge plate 8 rotates to guide the material inside the storage frame 5 into the inside of the discharge frame 6, and discharge it through the discharge port on the surface of the discharge frame 6, so as to achieve quantitative and stable discharge of grains, ensure the quality consistency of the ground grain powder or particles, and avoid uneven grinding caused by insufficient or excessive discharge. The material is evenly distributed, thereby improving production efficiency. At the same time, the material discharged from the discharge frame 6 enters the top of the scattering plate 10, and the discharge plate 8 rotates while contacting and squeezing the L-shaped plate 12 to move. The movement of the L-shaped plate 12 drives the scattering plate 10 to move, and the scattering plate 10 moves away from the baffle 11 to remove the obstruction to the scattering hole. The movement of the L-shaped plate 12 squeezes the No. 1 spring 14 and drives the scattering plate 10 to reset under its action, so that the scattering plate 10 moves back and forth and realizes multiple discharges of grains under the action of the baffle 11, thereby avoiding the accumulation of grains at the angle between the grinding bucket 4 and the grinding roller 3, resulting in insufficient grinding, and improving the grinding efficiency.

[0032] See also Figure 1-Figure 9 On the basis of the above embodiment, in another embodiment of the present invention, the surface of the spreading plate 10 is provided with an extruding device for improving the grain grinding effect, and also includes a throwing device, the extruding device includes a connecting block 151, a conduction rod 152, an extruding frame 153, a receiving block 154, a fixed block 155 and a sliding plate 156, the connecting block 151 is fixedly installed under the spreading plate 10, the conduction rod 152 is rotatably installed inside the connecting block 151, and the extruding frame 153 is slidably installed on the inner wall of the grinding bucket 4 The receiving block 154 is fixedly installed on the surface of the extrusion frame 153, the fixed block 155 is fixedly installed under the spreading plate 10, the sliding plate 156 slides through the left and right walls of the support frame 9, and the end of the conduction rod 152 away from the connecting block 151 is rotatably connected to the receiving block 154. The extrusion frame 153 reciprocates to extrude the grains at the angle between the grinding bucket 4 and the grinding roller 3, so that the grains accumulated at the angle are in more complete contact with the grinding roller 3, thereby improving the crushing and pulverizing process of the grains and improving the grain grinding efficiency.

[0033] The surface of the extrusion frame 153 is set as bevel surface three, which can effectively shovel up the accumulated grains. The end of the fixed block 155 close to the sliding plate 156 is set as arc surface one, and the end of the sliding plate 156 close to the fixed block 155 is set as arc surface two. The fixed block 155 moves through the arc surface one and the arc surface two to squeeze the sliding plate 156 to move.

[0034] A telescopic elastic rod 157 is fixedly installed at one end of the sliding plate 156 close to the support frame 9, and the free end of the telescopic elastic rod 157 is fixedly connected to the support frame 9. The sliding plate 156 moves to squeeze the telescopic elastic rod 157 and resets under the action of the telescopic elastic rod 157. The sliding plate 156 resets and contacts the fixed block 155 to generate vibration. The vibration can effectively improve the discharge effect of the scattering plate 10, avoid the accumulation of grains on the surface of the scattering plate 10, and at the same time make the grains more evenly discharged into the interior of the grinding bucket 4, further improving the grain grinding efficiency.

[0035] The throwing device includes a rotating rod 161, a throwing plate 162, a tooth block 163 and a driven block 164. The rotating rod 161 rotates to penetrate the inner and outer walls of the extrusion frame 153, the throwing plate 162 is fixedly installed on the circumferential surface of the rotating rod 161, the tooth block 163 is fixedly installed on the circumferential surface of the rotating rod 161, and the driven block 164 is fixedly installed on the inner wall of the grinding bucket 4. The rotation of the tooth block 163 drives the throwing plate 162 to rotate, and the rotation of the throwing plate 162 throws up the grains on its surface. The thrown grains are re-contacted with the grinding bucket 4 and ground under the action of the grinding roller 3, thereby avoiding excessive accumulation of grains affecting the subsequent grinding of grains, thereby further improving the grinding efficiency of grains.

[0036] A receiving shaft 165 is rotatably penetrated on the surface of the support frame 9, and a guide plate 166 is fixedly installed on the circumferential surface of the receiving shaft 165. A U-shaped rod 167 is slidably installed inside the grinding bucket 4. The rotation of the guide plate 166 can allow the grains to enter the interior of the grinding bucket 4 along its surface, thereby preventing the grains from entering the gap between the throwing plate 162 and the extrusion frame 153 during the throwing process, which will affect the subsequent throwing, reduce the subsequent maintenance costs, extend the service life of the equipment, and thus improve the grinding efficiency of the equipment.

[0037] One end of the U-shaped rod 167 close to the guide plate 166 is set as an arc surface 3, and a torsion spring is arranged between the guide plate 166 and the receiving shaft 165, and the torsion spring can drive the guide plate 166 to return to its original position.

[0038] When the present embodiment is working, the material spreading plate 10 reciprocates left and right to drive the connecting block 151 to reciprocate left and right, the connecting block 151 reciprocates left and right to drive the transmission rod 152 to reciprocate, the transmission rod 152 reciprocates to drive the receiving block 154 to reciprocate, the receiving block 154 reciprocates to drive the extruding frame 153 to reciprocate inside the grinding bucket 4, and the extruding frame 153 reciprocates to squeeze the grains at the angle between the grinding bucket 4 and the grinding roller 3, so that the grains accumulated at the angle are more fully in contact with the grinding roller 3, thereby improving the crushing of the grains. The crushing and pulverizing process improves the grain grinding efficiency. At the same time, the movement of the scattering plate 10 drives the fixed block 155 to move. The fixed block 155 moves to contact and squeeze the sliding plate 156. The sliding plate 156 moves to squeeze the telescopic elastic rod 157 and resets under its action. The sliding plate 156 resets and contacts the fixed block 155 to generate vibration. The vibration can effectively improve the discharge effect of the scattering plate 10, avoid the accumulation of grains on the surface of the scattering plate 10, and at the same time make the grains more evenly discharged into the inside of the grinding bucket 4, further improving the grain grinding efficiency.

[0039] When the extruding frame 153 moves away from the grinding roller 3, part of the grains will be shoveled onto the surface of the throwing plate 162. Then, the extruding frame 153 moves to drive the rotating rod 161 to move, the rotating rod 161 moves to drive the throwing plate 162 to move, the rotating rod 161 moves to drive the tooth block 163 to move, the tooth block 163 moves to contact the driven block 164 and rotates under the action of the driven block 164, the tooth block 163 rotates to drive the throwing plate 162 to rotate, the throwing plate 162 rotates to throw up the grains on its surface, and the thrown up grains are re-contacted with the grinding bucket 4 under the action of the grinding roller 3 and are ground, so as to avoid the accumulation of grains. In order to reduce the impact on the subsequent grain grinding, the grain grinding efficiency is further improved. The extrusion frame 153 moves in the direction away from the grinding roller 3 and contacts and squeezes the U-shaped rod 167 to move upward. The U-shaped rod 167 moves upward and contacts and drives the guide plate 166 to rotate. The rotation of the guide plate 166 can make the grain enter the interior of the grinding bucket 4 along its surface, avoiding the grain from entering the gap between the throwing plate 162 and the extrusion frame 153 during the throwing process, which affects the subsequent throwing, reduces the subsequent maintenance cost and extends the service life of the equipment, thereby improving the grinding efficiency of the equipment.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grain grinding device for primary processing of agricultural products, comprising a device frame (1), characterized in that: It also includes a feeding device and a throwing device; A motor is fixedly mounted on the surface of the equipment frame (1), a transmission shaft (2) is fixedly mounted on the output end of the motor, a grinding roller (3) is fixedly mounted on the circumferential surface of the transmission shaft (2), and a grinding bucket (4) is fixedly mounted inside the equipment frame (1); The feeding device comprises a material storage frame (5), a material discharging frame (6), a driven shaft (7), a material discharging plate (8), a support frame (9), a material spreading plate (10), a baffle (11), an L-shaped plate (12) and a receiving rod (13); the material storage frame (5) is fixedly inserted through the upper inner and outer walls of the equipment frame (1); the material discharging frame (6) is fixedly inserted through the lower inner and outer walls of the material storage frame (5); the driven shaft (7) is fixedly inserted through the inner and outer walls of the material discharging frame (6); the material discharging plate (8) is fixedly mounted on the circumferential surface of the driven shaft (7); the support frame (9) is fixedly mounted on the surface of the grinding bucket (4); and the material spreading plate (10) is slidably mounted on the upper surface of the support frame (9). The baffle (11) is fixedly mounted on the inner wall of the grinding bucket (4), the L-shaped plate (12) is fixedly mounted on the surface of the material spreading plate (10), the receiving rod (13) is fixedly mounted on the outer wall of the material discharging frame (6), the driven shaft (7) and the transmission shaft (2) are connected by a transmission belt, a material spreading hole is provided on the surface of the material spreading plate (10), the baffle (11) is slidably connected to the material spreading plate (10), the receiving rod (13) slides through the left and right walls of the L-shaped plate (12), the end of the L-shaped plate (12) away from the material spreading plate (10) slides through the inner and outer walls of the material discharging frame (6), and a material discharging port is provided at the bottom of the material discharging frame (6); Wherein, a material squeezing device for improving the grain grinding effect is provided on the surface of the material spreading plate (10); The extrusion device comprises a connecting block (151), a conducting rod (152), an extrusion frame (153), a receiving block (154), a fixed block (155) and a sliding plate (156); the connecting block (151) is fixedly mounted below the material spreading plate (10); the conducting rod (152) is rotatably mounted inside the connecting block (151); the extrusion frame (153) is slidably mounted on the inner wall of the grinding bucket (4); the receiving block (154) is fixedly mounted on the surface of the extrusion frame (153); the fixed block (155) is fixedly mounted below the material spreading plate (10); the sliding plate (156) slides through the left and right walls of the support frame (9); and the end of the conducting rod (152) away from the connecting block (151) is rotatably connected to the receiving block (154); The material throwing device comprises a rotating rod (161), a material throwing plate (162), a tooth block (163) and a driven block (164); the rotating rod (161) rotates to penetrate the inner and outer walls of the material extrusion frame (153); the material throwing plate (162) is fixedly mounted on the circumferential surface of the rotating rod (161); the tooth block (163) is fixedly mounted on the circumferential surface of the rotating rod (161); and the driven block (164) is fixedly mounted on the inner wall of the grinding bucket (4).

2. The grain grinding device for primary processing of agricultural products according to claim 1, characterized in that: The surface of the discharge plate (8) is configured as a first beveled surface, the end of the L-shaped plate (12) close to the discharge plate (8) is configured as a second beveled surface, and a first spring (14) is provided between the receiving rod (13) and the discharge frame (6).

3. The grain grinding device for primary processing of agricultural products according to claim 2, characterized in that: The surface of the extrusion frame (153) is configured as beveled surface three, one end of the fixed block (155) close to the sliding plate (156) is configured as arc surface one, and one end of the sliding plate (156) close to the fixed block (155) is configured as arc surface two.

4. The grain grinding device for primary processing of agricultural products according to claim 3, characterized in that: A telescopic elastic rod (157) is fixedly mounted on one end of the sliding plate (156) close to the support frame (9), and a free end of the telescopic elastic rod (157) is fixedly connected to the support frame (9).

5. The grain grinding device for primary processing of agricultural products according to claim 4, characterized in that: A receiving shaft (165) is rotatably penetrated through the surface of the support frame (9), a guide plate (166) is fixedly mounted on the circumferential surface of the receiving shaft (165), and a U-shaped rod (167) is slidably mounted inside the grinding bucket (4).

6. The grain grinding device for primary processing of agricultural products according to claim 5, characterized in that: One end of the U-shaped rod (167) close to the guide plate (166) is arranged as an arc surface 3, and a torsion spring is arranged between the guide plate (166) and the receiving shaft (165).

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