A food primary processing grain milling device for agricultural products

Abstract

The present application relates to the technical fields of agricultural product primary processing, and discloses a food primary processing grain milling device for agricultural products, which comprises a base, a processing tank, a discharging hole and a PLC controller, the top of the base is fixedly connected with the bottom of the processing tank, the discharging hole is arranged on the top of the processing tank, and the left side of the PLC controller is fixedly connected with the processing tank. The novel device is provided with a milling assembly, a material guiding assembly and a knocking assembly, and the top of the milling disc is inclined, so that millet falls into the protection pipe through the falling hole, and the connecting rod rotates to drive the material guiding pipe to rotate, and at this time, the millet is discharged into another milling disc through the material guiding pipe for milling. The problem that the millet needs to be swept to the middle by a staff member with a broom during the milling by a stone roller, and the millet needs to be milled twice after the milling is solved.

Description

Technical Field

[0001] This invention belongs to the field of primary processing technology of agricultural products, and in particular relates to a grain milling device for primary food processing of agricultural products. Background Technology

[0002] Millet is an agricultural product, a type of coarse grain with high nutritional value. It is rich in protein, vitamins, and minerals, making it suitable for people of all ages. Millet is traditionally processed using a stone roller, which removes the outer shell of the millet through slow friction with stones. This low-temperature, low-speed processing method helps to better preserve the original nutrients of millet, including minerals, vitamins, and antioxidants.

[0003] However, the above-mentioned device still has the following problems during implementation:

[0004] Existing technology allows millet grinding with a stone roller to better preserve the original nutrients of millet. However, when using a stone roller for grinding, the pressure of the roller causes the millet to spread outwards, requiring a worker to constantly sweep it back to the center. Moreover, millet usually needs to be ground a second time after grinding, and then the millet needs to be lifted up to remove impurities, which is quite troublesome. Therefore, a grain grinding device for the primary processing of agricultural products is proposed to solve the above problems. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention provides a grain milling device for the primary processing of agricultural products, which has the advantages of secondary milling and rapid impurity removal. It can overcome the above-mentioned problems or at least partially solve the problem that when using a stone roller for milling, the pressure of the stone roller causes the millet to spread to the surrounding area, requiring a worker to constantly sweep it back to the center with a broom, and the milled millet usually needs to be milled a second time, which is quite troublesome.

[0006] The present invention is implemented as follows: a grain milling device for primary food processing of agricultural products, comprising a base, a processing tank, a discharge hole and a PLC controller, wherein the top of the base is fixedly connected to the bottom of the processing tank, the discharge hole is opened at the top of the processing tank, and the left side of the PLC controller is fixedly connected to the processing tank.

[0007] The inner cavity of the discharge hole is connected to a mounting shell, and a servo motor is fixedly installed in the inner cavity of the mounting shell. A cover plate is fixedly connected to the top of the mounting shell by bolts. A connecting plate is fixedly connected to the surface of the mounting shell. The side of the connecting plate away from the mounting shell is fixedly connected to the inner wall of the discharge hole, and there are four connecting plates. A rotating rod is fixedly connected to the output end of the servo motor. The bottom of the rotating rod passes through the mounting shell and extends into the inner cavity of the processing tank. A docking groove is opened on the front side of the base. A discharge hole is opened on the opposite side of the base and the processing tank. A receiving box is inserted into the inner cavity of the docking groove. The top of the receiving box corresponds to the discharge hole.

[0008] Two grinding components are used to grind millet. The grinding components are located at the top and bottom of the inner cavity of the processing tank. Each grinding component includes two grinding discs. The top of each grinding disc is inclined and has a drop hole. Six mounting blocks are fixedly connected to the surface of each grinding disc. The mounting blocks are fixedly connected to the processing tank on the side closest to the processing tank. The inner cavity of the grinding disc is hollow. A connecting rod is fixedly connected to the bottom of a rotating rod. A matching rod is movably connected to the top of the grinding disc. The right side of the matching rod passes through the connecting rod and extends to the outside of the connecting rod, and is fixedly connected to the connecting rod. A grinding wheel is sleeved on the surface of the matching rod, and a combing plate is fixedly connected to the bottom of the matching rod.

[0009] A feeding guide assembly for discharging millet after one grinding, the feeding guide assembly being disposed inside the processing tank;

[0010] Six striking components for striking the grinding assembly, the striking components being disposed within the cavity of the processing tank.

[0011] As a preferred embodiment of the present invention, an L-shaped rod is fixedly connected to both the left and right sides of the rotating rod, a turntable is fixedly connected to the top of the L-shaped rod, and a through hole is provided at the bottom of the turntable, and the number of through holes is multiple.

[0012] As a preferred embodiment of the present invention, the top of the turntable is rotatably connected to an auxiliary rod via a bearing, and a disintegrating rod is fixedly connected to the surface of the auxiliary rod, and there are multiple disintegrating rods.

[0013] As a preferred embodiment of the present invention, a gear is fixedly connected to the top of the auxiliary rod, and teeth that cooperate with the gear are fixedly connected to the surface of the mounting shell. The surface of the gear meshes with the teeth, and there are multiple teeth.

[0014] In a preferred embodiment of the present invention, the material guiding assembly includes a protective tube, the top of which is fixedly connected to the grinding disc, and a material guiding tube movably connected to the bottom of the protective tube. A rotating groove is provided at the top of the material guiding tube, and a rotating ring is slidably connected to the inner cavity of the rotating groove. The top of the rotating ring is fixedly connected to the protective tube, and the bottom of the connecting rod passes through the material guiding tube and is fixedly connected to the material guiding tube.

[0015] As a preferred embodiment of the present invention, a mating plate is fixedly connected to the rear side of the feed tube, and a trapezoidal block is fixedly connected to the rear side of the mating plate.

[0016] As a preferred embodiment of the present invention, the striking assembly includes a linkage plate with a chamfered surface. A striking block is fixedly connected to the top and bottom of the linkage plate on the side near the grinding disc. A stroke rod is movably connected to the top and bottom of the linkage plate on the side away from the grinding disc. A spring is sleeved on the surface of the stroke rod. The side of the stroke rod away from the grinding disc passes through the side of the linkage plate and is fixedly connected to the processing tank.

[0017] As a preferred embodiment of the present invention, a U-shaped tube is fixedly connected to the rear side of the processing tank, and a connecting pipe for use with a vacuum cleaner is fixedly connected to the rear side of the U-shaped tube.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention utilizes a combination of a grinding component, a guiding component, and a striking component. Because the top of the grinding disc is inclined, millet falls into the protective tube through the drop hole. When the connecting rod rotates, it drives the guiding tube to rotate, allowing the millet to be discharged into another grinding disc for grinding. This solves the problem of using a stone roller, where the pressure from the roller causes the millet to spread outwards, requiring a worker to constantly sweep it back to the center. Furthermore, the millet usually needs to be ground a second time, which is quite troublesome.

[0020] 2. By setting up an L-shaped rod, a turntable, and a through hole, the rotation of the rod will cause the turntable at the top of the L-shaped rod to rotate, and millet will continuously fall through the through hole to the front of the grinding wheel, so that the grinding wheel can better grind the millet.

[0021] 3. By setting an auxiliary rod and a dispersing rod, the millet is poured into the discharge hole at the top of the processing tank. If there are clumps of millet, it may cause the through hole to be blocked. At this time, the auxiliary rod can drive the dispersing rod to rotate and disperse the millet.

[0022] 4. By setting gears and teeth, when it is necessary to drive the auxiliary rod to rotate continuously, the rotation of the turntable will drive the gears and teeth on the top of the auxiliary rod to mesh. At this time, the auxiliary rod can be driven to rotate by the gears, and the rotation of the auxiliary rod can drive the disintegrating rod to rotate.

[0023] 5. By setting up a material guiding component, when it is necessary to continuously discharge millet to the front side of the grinding wheel, the millet falls into the protective tube through the drop hole. When the connecting rod rotates, it will drive the material guiding tube to rotate. At this time, the millet will be discharged into another grinding disc through the material guiding tube for grinding.

[0024] 6. By setting up a mating plate and a trapezoidal block, when it is necessary to move the six linkage plates, the rotation of the guide pipe will drive the mating plate to rotate, and the rotation of the mating plate will drive the trapezoidal block to continuously squeeze the linkage plate, thus continuously striking the grinding disc.

[0025] 7. By setting up a striking component, when the trapezoidal block is separated from the linkage plate, the spring undergoes elastic deformation, causing the linkage plate to return to its original position. The linkage plate can then drive the striking block to strike the grinding disc, and the resulting vibration force can increase the millet feeding speed.

[0026] 8. This invention uses a U-shaped tube and a connecting tube to push the dust collection device to connect with the connecting tube at the back of the U-shaped tube. In this way, the suction will be used to collect dust inside the processing tank through the connecting tube and the U-shaped tube, so that the debris generated during millet processing can be sucked away by the U-shaped tube. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present invention;

[0028] Figure 2 This is a perspective sectional view of the processing tank provided in an embodiment of the present invention;

[0029] Figure 3 This is a perspective view of the grinding assembly provided in an embodiment of the present invention;

[0030] Figure 4 This is a perspective view of the material guiding component and the striking component provided in an embodiment of the present invention;

[0031] Figure 5 This is a three-dimensional schematic diagram of the turntable provided in an embodiment of the present invention;

[0032] Figure 6 This is a perspective view of the base and receiving box provided in an embodiment of the present invention.

[0033] In the diagram: 1. Base; 2. Processing tank; 3. Discharge hole; 4. PLC controller; 5. Mounting shell; 6. Servo motor; 7. Cover plate; 8. Connecting plate; 9. Rotating rod; 10. Docking groove; 11. Discharge hole; 12. Receiving box; 13. Grinding assembly; 131. Grinding disc; 132. Drop hole; 133. Mounting block; 134. Connecting rod; 135. Matching rod; 136. Grinding wheel; 137. Combing disc; 14. Guide. 15. Material assembly; 16. Striking assembly; 17. L-shaped rod; 18. Turntable; 19. Through hole; 20. Auxiliary rod; 21. Dispersing rod; 22. Gear; 23. Tooth; 144. Protective tube; 145. Guide tube; 146. Rotating groove; 147. Rotating ring; 28. Mating plate; 29. ​​Trapezoidal block; 100. Linkage plate; 111. Striking block; 122. Stroke rod; 133. Spring; 24. U-shaped tube; 25. Connecting tube. Detailed Implementation

[0034] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0035] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0036] like Figures 1 to 6 As shown in the figure, an embodiment of the present invention provides a grain milling device for primary food processing of agricultural products, including a base 1, a processing tank 2, a discharge hole 3 and a PLC controller 4. The top of the base 1 is fixedly connected to the bottom of the processing tank 2, the discharge hole 3 is opened on the top of the processing tank 2, and the left side of the PLC controller 4 is fixedly connected to the processing tank 2.

[0037] The inner cavity of the discharge hole 3 is connected to the mounting shell 5. The inner cavity of the mounting shell 5 is fixedly installed with a servo motor 6. The top of the mounting shell 5 is fixedly connected with a cover plate 7 by bolts. The surface of the mounting shell 5 is fixedly connected with a connecting plate 8. The side of the connecting plate 8 away from the mounting shell 5 is fixedly connected to the inner wall of the discharge hole 3. There are four connecting plates 8. The output end of the servo motor 6 is fixedly connected with a rotating rod 9. The bottom of the rotating rod 9 passes through the mounting shell 5 and extends to the inner cavity of the processing tank 2. The front side of the base 1 is provided with a docking groove 10. The opposite sides of the base 1 and the processing tank 2 are provided with discharge holes 11. The inner cavity of the docking groove 10 is connected with a receiving box 12. The top of the receiving box 12 corresponds to the discharge hole 11.

[0038] Two grinding components 13 are used to grind millet. The grinding components 13 are set at the top and bottom of the inner cavity of the processing tank 2. The grinding components 13 include two grinding discs 131. The top of the grinding discs 131 is inclined. The top of the grinding discs 131 has a drop hole 132. The surface of the grinding discs 131 is fixedly connected to the mounting blocks 133, and there are six mounting blocks 133. The side of the mounting blocks 133 near the processing tank 2 is fixedly connected to the processing tank 2. The inner cavity of the grinding discs 131 is hollow. The bottom of the rotating rod 9 is fixedly connected to the connecting rod 134. The top of the grinding discs 131 is movably connected to the mating rod 135. The right side of the mating rod 135 passes through the connecting rod 134 and extends to the outside of the connecting rod 134 and is fixedly connected to the connecting rod 134. The surface of the mating rod 135 is fitted with a grinding wheel 136. The bottom of the mating rod 135 is fixedly connected to a combing plate 137.

[0039] A feeding guide assembly 14 is used to discharge millet after one grinding. The feeding guide assembly 14 is disposed in the inner cavity of the processing tank 2.

[0040] Six striking components 15 are used to strike the grinding assembly 13, and the striking components 15 are disposed in the inner cavity of the processing tank 2.

[0041] refer to Figure 3 L-shaped rods 16 are fixedly connected to the left and right sides of the rotating rod 9. A turntable 17 is fixedly connected to the top of the L-shaped rod 16. A through hole 18 is opened at the bottom of the turntable 17, and there are multiple through holes 18.

[0042] Using the above solution: By setting up an L-shaped rod 16, a turntable 17 and a through hole 18, when the rotating rod 9 rotates, it will drive the turntable 17 at the top of the L-shaped rod 16 to rotate. The millet will continuously fall through the through hole 18 to the front of the grinding wheel 136, so that the grinding wheel 136 can grind the millet better.

[0043] refer to Figure 5 An auxiliary rod 19 is rotatably connected to the top of the turntable 17 via a bearing. A dispersing rod 20 is fixedly connected to the surface of the auxiliary rod 19, and there are multiple dispersing rods 20.

[0044] Using the above solution: By setting up the auxiliary rod 19 and the dispersing rod 20, millet is poured into the discharge hole 3 at the top of the processing tank 2. If there are clumps of millet, it may cause the through hole 18 to be blocked. At this time, the auxiliary rod 19 can drive the dispersing rod 20 to rotate and disperse the millet.

[0045] refer to Figure 3 A gear 21 is fixedly connected to the top of the auxiliary rod 19, and teeth 22 that cooperate with the gear 21 are fixedly connected to the surface of the mounting shell 5. The surface of the gear 21 meshes with the teeth 22, and there are multiple teeth 22.

[0046] Using the above scheme: By setting gear 21 and teeth 22, when it is necessary to drive the auxiliary rod 19 to rotate continuously, the rotation of the turntable 17 will drive the gear 21 and teeth 22 at the top of the auxiliary rod 19 to mesh. At this time, the auxiliary rod 19 can be driven to rotate by gear 21, and the rotation of the auxiliary rod 19 can drive the dispersing rod 20 to rotate.

[0047] refer to Figure 3 The material guiding assembly 14 includes a protective tube 141, the top of which is fixedly connected to the grinding disc 131, and a material guiding tube 142 is movably connected to the bottom of the protective tube 141. A rotating groove 143 is provided at the top of the material guiding tube 142, and a rotating ring 144 is slidably connected to the inner cavity of the rotating groove 143. The top of the rotating ring 144 is fixedly connected to the protective tube 141, and the bottom of the connecting rod 134 passes through the material guiding tube 142 and is fixedly connected to the material guiding tube 142.

[0048] Using the above solution: By setting the material guide component 14, when it is necessary to continuously discharge millet to the front side of the grinding wheel 136, the millet falls into the protective tube 141 through the drop hole 132. When the connecting rod 134 rotates, it will drive the material guide tube 142 to rotate. At this time, the millet will be discharged into another grinding disc 131 through the material guide tube 142 for grinding.

[0049] refer to Figure 3 A mating plate 23 is fixedly connected to the rear side of the feed tube 142, and a trapezoidal block 24 is fixedly connected to the rear side of the mating plate 23.

[0050] Using the above scheme: by setting the mating plate 23 and the trapezoidal block 24, when it is necessary to move the six linkage plates 151, the rotation of the guide pipe 142 will drive the mating plate 23 to rotate, and the rotation of the mating plate 23 will drive the trapezoidal block 24 to continuously squeeze the linkage plate 151, so as to continuously strike the grinding disc 131.

[0051] refer to Figure 4 The striking assembly 15 includes a linkage plate 151. The surface of the linkage plate 151 is chamfered. A striking block 152 is fixedly connected to the top and bottom of the linkage plate 151 on the side close to the grinding disc 131. A stroke rod 153 is movably connected to the top and bottom of the linkage plate 151 on the side away from the grinding disc 131. A spring 154 is sleeved on the surface of the stroke rod 153. The side of the stroke rod 153 away from the grinding disc 131 passes through the side of the linkage plate 151 and is fixedly connected to the processing tank 2.

[0052] Using the above solution: By setting the striking component 15, when the trapezoidal block 24 is separated from the linkage plate 151, the spring 154 undergoes elastic deformation, causing the linkage plate 151 to return to its original position. The linkage plate 151 can then drive the striking block 152 to strike the grinding disc 131, and the resulting vibration can increase the millet feeding speed.

[0053] refer to Figure 2 A U-shaped tube 25 is fixedly connected to the rear side of the processing tank 2, and a connecting pipe 26 for use with a vacuum cleaner is fixedly connected to the rear side of the U-shaped tube 25.

[0054] Using the above solution: by setting up a U-shaped tube 25 and a connecting tube 26, the vacuum cleaner is pushed to connect with the connecting tube 26 on the back side of the U-shaped tube 25. In this way, the suction will be used to vacuum the inside of the processing tank 2 through the connecting tube 26 and the U-shaped tube 25, so that the debris generated during millet processing can be sucked away by the U-shaped tube 25.

[0055] Working principle of the invention:

[0056] In use, push the vacuum cleaner to connect with the connecting pipe 26 on the rear side of the U-shaped tube 25. Then, pick up the receiving box 12 and insert it into the connecting groove 10 on the front side of the base 1. Next, pick up a bag of millet and pour it into the discharge hole 3 on the top of the processing tank 2. At this time, the turntable 17 and the mounting shell 5 can intercept the millet. Then, the servo motor 6 and the vacuum cleaner can be turned on by the PLC controller 4. The rotation of the output end of the servo motor 6 will drive the rotating rod 9 to rotate. The rotation of the rotating rod 9 will drive the connecting rod 134 to rotate. The rotation of the connecting rod 134 will drive the two mating rods 135 to rotate. The rotation of the mating rods 135 will drive the grinding wheel 1 to rotate. The millet millet rotates on the grinding disc 131, and the rotation of the rotating rod 9 drives the L-shaped rod 16 to rotate. The rotation of the L-shaped rod 16 drives the rotating disc 17 to rotate. When the rotating disc 17 rotates, the millet millet falls through the through hole 18. The rotation of the rotating disc 17 drives the gear 21 at the top of the auxiliary rod 19 to mesh with the teeth 22. At this time, the auxiliary rod 19 can be driven to rotate by the gear 21. The rotation of the auxiliary rod 19 drives the dispersing rod 20 to rotate. At this time, the dispersing rod 20 can break up the clumps of millet millet, so that the millet millet will not block the through hole 18. After the millet millet falls through the through hole 18 onto the grinding disc 131, the grinding wheel 136 will grind the millet millet. The combing plate 137 can comb the millet. Because the top of the grinding disc 131 is inclined, the millet will fall into the protective tube 141 through the drop hole 132. When the connecting rod 134 rotates, it will drive the guide tube 142 to rotate. At this time, the millet will be discharged into another grinding disc 131 through the guide tube 142 for grinding. After secondary grinding, it will enter the collection box 12 through the drop hole 132 and the discharge hole 11. When the millet falls, the debris will be sucked into the vacuuming device by the suction generated by the U-shaped tube 25. When too much millet accumulates on the grinding disc 131, causing the falling speed to slow down, the guide tube... Rotating tube 142 causes mating plate 23 to rotate, which in turn causes trapezoidal block 24 to press against linkage plate 151. The compression of linkage plate 151 compresses spring 154. When trapezoidal block 24 disengages from linkage plate 151, spring 154 undergoes elastic deformation, causing linkage plate 151 to return to its original position. Linkage plate 151 then drives striking block 152 to strike grinding disc 131. The resulting vibration increases the millet feeding speed. Through the above steps, secondary milling and rapid impurity removal of millet are completed, improving the creativity of the grain milling device for primary food processing of agricultural products and making it easier for users to operate.

[0057] It should be noted that the PLC controller 4 and the servo motor 6 are existing devices or equipment, or devices or equipment that can be implemented with existing technology. The specific composition and principle of the power supply of the PLC controller 4 and the servo motor 6 are clear to those skilled in the art, so they will not be described in detail here.

[0058] In summary, this grain milling device for primary food processing of agricultural products, through the coordinated use of milling component 13, material guiding component 14, and striking component 15, addresses the problem that, due to the inclined top of the milling disc 131, millet falls through the drop hole 132 into the protective tube 141. When the connecting rod 134 rotates, it drives the material guiding tube 142 to rotate, allowing the millet to be discharged through the material guiding tube 142 onto another milling disc 131 for milling. This solves the problem of millet spreading outwards due to the pressure of a stone roller during milling, requiring a worker to constantly sweep it back to the center, and the cumbersome process of milling millet often requiring a second milling after initial milling.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grain milling device for primary food processing of agricultural products, comprising a base (1), a processing tank (2), a discharge port (3), and a PLC controller (4), characterized in that: The top of the base (1) is fixedly connected to the bottom of the processing tank (2), the discharge hole (3) is opened on the top of the processing tank (2), and the left side of the PLC controller (4) is fixedly connected to the processing tank (2). The inner cavity of the discharge hole (3) is connected to the mounting shell (5), and the inner cavity of the mounting shell (5) is fixedly installed with a servo motor (6). The top of the mounting shell (5) is fixedly connected with a cover plate (7) by bolts. The surface of the mounting shell (5) is fixedly connected with a connecting plate (8). The side of the connecting plate (8) away from the mounting shell (5) is fixedly connected to the inner wall of the discharge hole (3), and there are four connecting plates (8). The output end of the servo motor (6) is fixedly connected with a rotating rod (9). The bottom of the rotating rod (9) penetrates the mounting shell (5) and extends to the inner cavity of the processing tank (2). The front side of the base (1) is provided with a docking groove (10). The opposite side of the base (1) and the processing tank (2) are provided with discharge holes (11). The inner cavity of the docking groove (10) is connected with a receiving box (12). The top of the receiving box (12) corresponds to the discharge hole (11). Two grinding components (13) are used to grind millet. The grinding components (13) are located at the top and bottom of the inner cavity of the processing tank (2). The grinding components (13) include two grinding discs (131). The top of the grinding discs (131) is inclined. The top of the grinding discs (131) is provided with a drop hole (132). The surface of the grinding discs (131) is fixedly connected with six mounting blocks (133). The side of the mounting blocks (133) closest to the processing tank (2) is connected to the processing tank. (2) Fixed connection: The inner cavity of the grinding disc (131) is hollow. The bottom of the rotating rod (9) is fixedly connected to the connecting rod (134). The top of the grinding disc (131) is movably connected to the mating rod (135). The right side of the mating rod (135) passes through the connecting rod (134) and extends to the outside of the connecting rod (134), and is fixedly connected to the connecting rod (134). The surface of the mating rod (135) is fitted with a grinding wheel (136). The bottom of the mating rod (135) is fixedly connected to a combing plate (137). A feeding guide assembly (14) for discharging millet after one grinding, the feeding guide assembly (14) being disposed in the inner cavity of the processing tank (2); Six striking components (15) for striking the grinding assembly (13), the striking components (15) being disposed in the inner cavity of the processing tank (2); The material guiding assembly (14) includes a protective tube (141), the top of which is fixedly connected to the grinding disc (131), and a material guiding tube (142) is movably connected to the bottom of the protective tube (141). A rotating groove (143) is provided on the top of the material guiding tube (142), and a rotating ring (144) is slidably connected to the inner cavity of the rotating groove (143). The top of the rotating ring (144) is fixedly connected to the protective tube (141), and the bottom of the connecting rod (134) passes through the material guiding tube (142) and is fixedly connected to the material guiding tube (142). A mating plate (23) is fixedly connected to the rear side of the material guiding tube (142), and a trapezoidal block (24) is fixedly connected to the rear side of the mating plate (23).

2. The grain milling device for primary food processing of agricultural products as described in claim 1, characterized in that: The left and right sides of the rotating rod (9) are fixedly connected to L-shaped rods (16), the top of the L-shaped rod (16) is fixedly connected to a turntable (17), and the bottom of the turntable (17) is provided with through holes (18), and there are multiple through holes (18).

3. The grain milling device for primary food processing of agricultural products as described in claim 2, characterized in that: The top of the turntable (17) is rotatably connected to an auxiliary rod (19) via a bearing. A dispersing rod (20) is fixedly connected to the surface of the auxiliary rod (19), and there are multiple dispersing rods (20).

4. The grain milling device for primary food processing of agricultural products as described in claim 3, characterized in that: The top of the auxiliary rod (19) is fixedly connected to a gear (21), and the surface of the mounting shell (5) is fixedly connected to a tooth (22) that works with the gear (21). The surface of the gear (21) meshes with the tooth (22), and there are multiple teeth (22).

5. The grain milling device for primary food processing of agricultural products as described in claim 1, characterized in that: The striking assembly (15) includes a linkage plate (151), the surface of which is chamfered. A striking block (152) is fixedly connected to the top and bottom of the linkage plate (151) near the grinding disc (131). A stroke rod (153) is movably connected to the top and bottom of the linkage plate (151) away from the grinding disc (131). A spring (154) is sleeved on the surface of the stroke rod (153). The side of the stroke rod (153) away from the grinding disc (131) passes through the side of the linkage plate (151) and is fixedly connected to the processing tank (2).

6. The grain milling device for primary food processing of agricultural products as described in claim 1, characterized in that: The processing tank (2) is fixedly connected to a U-shaped tube (25) at the rear, and the U-shaped tube (25) is fixedly connected to a connecting pipe (26) for use with a vacuum cleaner at the rear.

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