Rice grain grinding device for millet biscuit preparation

Abstract

The utility model relates to millet grinding and processing equipment, and discloses a rice grain grinding device for preparing millet biscuits, which comprises a grinding mechanism for grinding millet grains, an outer protection mechanism and a grinding area driving mechanism, the grinding mechanism is used for repeatedly impacting a millstone to extrude particles to crush and grind the particles, and the millstone is used for repeatedly impacting the millstone to grind the particles. The outer protection mechanism covers the grinding mechanism and is used for inputting and discharging materials, and the grinding area driving mechanism is used for coordinating and driving the grinding mechanism to automatically rotate. The main purpose of the grinding device is to assemble a core component playing a grinding role by adopting the grinding box, the fitting connection base plate, the side wall protection cover and the arc fitting plate; the grinding disc and the surrounding grinding heads are matched with each other, and a driving motor is used for driving a driving belt wheel and a driven belt wheel to rotate.

Description

Technical Field

[0001] The utility model relates to millet grinding equipment, in particular to a rice grain grinding device for preparing millet biscuits. Background Art

[0002] Millet can refer to a kind of grain, also known as millet, which is the product of millet after the husk is removed. It is a nutritious grain that contains many important nutrients, such as protein, cellulose, vitamins and mineral potassium. In the north, millet is mainly planted between April and June in spring and summer. Millet can be used to cook porridge, stew rice, and can also be processed into various dry foods. It was also an important raw material for making wine and vinegar at that time.

[0003] After searching, it was found that the vertical ultrafine grinding mill with application number CN200920301217.0 has the following content: The present invention relates to a grinding device. The utility model relates to a vertical ultrafine grinding mill, including a feeding mechanism, a grinding mechanism, an airflow classification mechanism, a powder unloading mechanism and a coarse material recovery device, characterized in that the fan cavity of the airflow classification mechanism is fixedly connected to the top of the grinding cavity of the grinding mechanism to form a closed cavity, and the contact surface between the grinding roller and the grinding disc is an arc-shaped groove. The advantages of the utility model are: the overall structure is simple, the floor space is small, the service life of the equipment, the grinding efficiency and quality are improved, and the power consumption, dust pollution and noise pollution are greatly reduced;

[0004] Millet is used as a raw material to make a rice biscuit, but the biscuit raw material needs to be crushed and then made into a suitable powder material. However, in the conventional rice cake raw material grinding process, it is inconvenient to grind and press the powder. In addition, this grinding method is combined with the fineness of the millet raw material, and it is difficult to refine it into powder according to the gap. Conventional grinding is not as good as the millet grinding implemented by high-speed rotary impact grinding for subsequent use. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a rice grain grinding device for preparing millet biscuits. Millet is used as a raw material to make a rice grain biscuit, but the biscuit raw material needs to be crushed and then a suitable powder material is made. However, in the conventional rice cake raw material grinding process, it is inconvenient to grind and press the powder material. In addition, this grinding method and the fineness of the millet raw material are difficult to be refined into powder according to the gap.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rice grain grinding device for preparing millet biscuits, comprising a grinding mechanism for implementing millet grain grinding, an external protection mechanism and a grinding area driving mechanism;

[0009] The millet is crushed and ground by repeatedly impacting the millstone to squeeze out the particles;

[0010] The outer protection mechanism covers the grinding mechanism and allows the input and output of materials;

[0011] The grinding area driving mechanism is used to coordinate and drive the grinding mechanism to rotate automatically;

[0012] The external protection mechanism includes two concave brackets, a protection cabinet is horizontally installed in the middle of the side wall of the concave bracket, an inspection side panel is installed in the middle of the cabinet side wall of the protection cabinet, the middle of the inspection side panel is hinged with a side wall support frame, a plurality of fitting pads are fitted on the surface of the side wall support frame, and a horizontal pad is provided in the middle of each fitting pad.

[0013] As a preferred solution of the utility model: a millet powder receiving box is installed on the surface of the concave bracket on one side, a delivery slot is opened on the top of the box body of the millet powder receiving box, a conical hopper is provided on the top of the delivery slot, and the bottom of the conical hopper is connected with the delivery slot.

[0014] As a preferred solution of the utility model: a discharge port is provided on the side wall of the millet flour receiving box, an exhaust groove is installed on the side wall of the millet flour receiving box, and a replacement groove for implementing internal and external gas replacement is embedded in the groove position of the exhaust groove.

[0015] As a preferred solution of the utility model: the grinding mechanism includes a grinding box installed inside a concave bracket, a fitting connection pad is installed in the middle of the top end of the grinding box, both ends of the fitting connection pad are provided with side wall protection covers, the cover connection end of the side wall protection cover is provided with a hinged roller, the end position of the hinged roller is provided with an arc-shaped fitting plate, the side wall of the plate end of the arc-shaped fitting plate is installed with a U-shaped bracket, and a driving roller is installed horizontally in the middle of the U-shaped bracket.

[0016] As a preferred solution of the utility model: the side wall of the arc-shaped bonding plate is installed with a flip cover bracket for deflection and fixation, and the side wall surface of the flip cover bracket is sequentially provided with a plurality of assembly frames for hinged connection, and a toggle sleeve is fitted and installed at one end of the assembly frame, and the sides of the toggle sleeve are symmetrically arranged on the edge side walls of the flip cover bracket.

[0017] As a preferred solution of the utility model: an articulated roller shaft is vertically installed in the middle of the end of the assembly frame, and sleeve covers for sleeve limiting are provided at the upper and lower ends of the articulated roller shaft, and a discharge slot is opened on the side wall of the grinding box, one end of the discharge slot is connected to an arc-shaped discharge box, and a material port is opened on the side wall of the arc-shaped discharge box.

[0018] As a preferred solution of the utility model: a grinding mechanism is embedded in the grinding box, and the grinding mechanism includes two symmetrical grinding discs installed in the middle of the grinding box, and the edges of the two grinding discs are surrounded by a grinding base, and a plurality of surrounding grinding heads are fitted on the surface of the grinding base.

[0019] As a preferred solution of the utility model: the edge of the surrounding grinding head is evenly surrounded by the corresponding grinding disk surface, the side wall of the grinding disk is installed with an access ring, and the surface of the access ring is installed with a plurality of fastening screws, and the ends of the plurality of fastening screws pass through one end of the access ring and pass through one end of the grinding disk for connection.

[0020] As a preferred solution of the utility model: the end of the penetrating ferrule is provided with a conical cover, and one end of the conical cover is connected to a conical cover sleeve;

[0021] The grinding discs are provided with two, and the surrounding grinding heads correspond to each other;

[0022] The outer cover of the grinding box is connected to a grinding area driving mechanism, which includes a coupling installed on the surface of the side wall protective cover, a linkage shaft is transversely installed in the middle of the coupling, and a driven pulley is sleeved on the axial surface of the linkage shaft.

[0023] As a preferred solution of the utility model: a transmission belt is sleeved on the surface of the driven pulley, a driving pulley is installed at the bottom of the transmission belt, the surface of the driving pulley is connected to the driven pulley through the transmission belt, one end of the driving pulley is provided with a driving motor for driving, the output end of the driving motor is connected to the driving pulley, an adjusting side plate is fitted on the bottom of the driving motor, and the back of the adjusting side plate is connected to one end of the grinding disc through a driving roller arranged in linkage;

[0024] A grinding groove is installed at the bottom of the grinding box.

[0025] (III) Beneficial effects

[0026] Compared with the prior art, the utility model provides a rice grain grinding device for preparing millet biscuits, which has the following beneficial effects:

[0027] 1) The main purpose of the grinding box, the bonding connection pad, the side wall protective cover and the arc-shaped bonding plate is to assemble the core components for the grinding purpose. The grinding disc and the multiple surrounding grinding heads cooperate with each other, and the driving motor is used to drive the master and slave pulleys to rotate. The purpose of this is to automatically drive the grinding disc on one side to rotate, so that the millet will imitate the stone pier grinding disc to impact and achieve grinding;

[0028] 2) The discharge is achieved by using a conical hopper and a specific material port solution in the direction of the specific slot for feeding. The transmission displacement of the corresponding articulated roller is further achieved by using an arc-shaped fitting plate and a flip cover bracket at the end. The subsequent grinding disc is used for the crushing contact to realize the preparation and crushing of the millet cake raw material, thereby improving the impact grinding of the millet raw material and the effect of grinding out fine powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the side wall support frame of the utility model;

[0031] Figure 3 It is a three-dimensional diagram of the grinding mechanism of the utility model;

[0032] Figure 4 This is a structural diagram of the driving mechanism of the grinding area of ​​the utility model;

[0033] Figure 5 This is a structural diagram of the side surface of the grinding head of the utility model;

[0034] Figure 6 This is a structural diagram of the tapered sleeve of the utility model;

[0035] Figure 7 This is a structural diagram of the grinding mechanism of the utility model;

[0036] Figure 8 This is a structural diagram of the arc-shaped laminated plate of the present invention.

[0037] In the figure: 1, grinding mechanism; 11, grinding box; 111, grinding groove; 12, fitting connection pad; 13, side wall protection cover; 14, arc-shaped fitting plate; 15, hinged roller; 16, U-shaped bracket; 17, driving roller shaft; 18, flip cover bracket; 19, assembly frame; 191, toggle sleeve; 192, hinged roller shaft; 193, cover; 194, discharge slot; 195, arc-shaped discharge box; 196, material outlet;

[0038] 2. External protection mechanism; 21. Concave bracket; 22. Protection cabinet; 23. Inspection side panel; 24. Side wall support frame; 25. Lamination pad; 26. Horizontal pad; 27. Millet powder receiving box; 28. Delivery slot; 29. ​​Conical hopper; 291. Discharge port; 292. Exhaust slot;

[0039] 3. Grinding area driving mechanism; 31. Coupling; 32. Linkage shaft; 33. Driven pulley; 34. Transmission belt; 35. Driving pulley; 36. Driving motor; 37. Adjusting side plate;

[0040] 4. Grinding mechanism; 41. Grinding disc; 42. Grinding base; 43. Surrounding grinding head; 44. Access ring; 45. Fastening screw; 46. Conical cover; 47. Conical cover sleeve. DETAILED DESCRIPTION

[0041] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0042] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] See also Figure 1 - Figure 8 This embodiment provides a rice grinding device for preparing millet biscuits, comprising a milling mechanism 1 for millet grinding, an outer protection mechanism 2 and a milling area driving mechanism 3;

[0044] The milling mechanism 1 implements millet to crush and grind the particles by repeatedly impacting the millstone;

[0045] The outer protection mechanism 2 covers the grinding mechanism 1 and inputs and outputs materials;

[0046] The grinding area driving mechanism 3 is used to coordinate and drive the grinding mechanism 1 to rotate automatically;

[0047] The external protection mechanism 2 includes two concave brackets 21, a protection cabinet 22 is horizontally installed in the middle of the side wall of the concave bracket 21, an inspection side panel 23 is installed in the middle of the cabinet side wall of the protection cabinet 22, and a side wall support frame 24 is hinged in the middle of the inspection side panel 23. A plurality of fitting pads 25 are fitted on the surface of the side wall support frame 24, and a horizontal pad 26 is provided in the middle of the fitting pad 25.

[0048] In this embodiment: a millet powder receiving box 27 is installed on the surface of the concave bracket 21 on one side, and a delivery slot 28 is opened at the top of the box body of the millet powder receiving box 27. A conical hopper 29 is provided at the top of the slot of the delivery slot 28, and the bottom of the conical hopper 29 is connected with the delivery slot 28.

[0049] The millet flour receiving box 27 and the corresponding slot area of ​​the delivery slot 28 further complete the extraction on the corresponding conical hopper 29.

[0050] In this embodiment: a discharge port 291 is provided on the side wall of the millet flour receiving box 27, and an exhaust slot 292 is installed on the side wall of the millet flour receiving box 27, and a replacement slot for implementing internal and external gas replacement is embedded inside the exhaust slot 292.

[0051] In the adopted discharge port 291 and exhaust slot 292 slot solution, real-time discharge at the position corresponding to the exhaust slot 292 slot is achieved to achieve the purpose of heat dissipation.

[0052] In this embodiment: the grinding mechanism 1 includes a grinding box 11 installed inside a concave bracket 21, a fitting connection pad 12 is installed in the middle of the top of the grinding box 11, side wall protection covers 13 are provided at both ends of the fitting connection pad 12, the cover connection end of the side wall protection cover 13 is provided with a hinged roller 15, the end position of the hinged roller 15 is provided with an arc-shaped fitting plate 14, the side wall of the plate end of the arc-shaped fitting plate 14 is installed with a U-shaped bracket 16, and a driving roller 17 is installed horizontally in the middle of the U-shaped bracket 16.

[0053] The articulated roller 15 and the adapted U-shaped bracket 16 ensure that the side wall protection cover 13 can be opened for later maintenance.

[0054] In this embodiment: the side wall of the arc-shaped bonding plate 14 is installed with a flip cover bracket 18 for deflection and fixation, and the side wall surface of the flip cover bracket 18 is sequentially provided with a plurality of assembly frames 19 for hinged connection, and one end of the assembly frame 19 is fitted with a toggle sleeve 191, and the sides of the toggle sleeve 191 are symmetrically arranged on the edge side walls of the flip cover bracket 18.

[0055] The use of the toggle sleeve 191 and the side flip cover bracket 18 is to ensure the assembly between the side wall protection cover 13 and the arc-shaped fitting plate 14, so as to ensure that the millet in the crushing stage can be quickly ground into powder.

[0056] In this embodiment: an articulated roller shaft 192 is vertically installed in the middle of the end of the assembly frame 19, and a sleeve cover 193 for sleeve limiting is provided at the upper and lower ends of the articulated roller shaft 192. A discharge slot 194 is provided on the side wall of the grinding box 11, and one end of the discharge slot 194 is connected to an arc-shaped discharge box 195, and a material port 196 is provided on the side wall of the box body of the arc-shaped discharge box 195.

[0057] The main purpose of adopting the arc-shaped discharge box 195 and the material opening 196 is to ensure the combined installation of the arc-shaped discharge box 195 .

[0058] In this embodiment: a grinding mechanism 4 is embedded in the grinding box 11, and the grinding mechanism 4 includes two symmetrical grinding discs 41 installed in the middle of the grinding box 11. The edges of the two grinding discs 41 are surrounded by a grinding base 42, and a plurality of surrounding grinding heads 43 are installed on the surface of the grinding base 42.

[0059] The adopted surrounding grinding head 43 and the specific grinding disc 41 cooperate with each other to achieve the crushing of the disc surfaces of both.

[0060] In this embodiment: the edge of the surrounding grinding head 43 is evenly surrounded by the corresponding surface of the grinding disk 41, the side wall of the grinding disk 41 is installed with an access ring 44, and the surface of the access ring 44 is installed with a plurality of fastening screws 45, and the ends of the plurality of fastening screws 45 pass through one end of the access ring 44 and pass through one end of the grinding disk 41 to connect.

[0061] The access ring 44 and the surface of the grinding disc 41 are used to further improve the specific fit between the two surfaces for crushing.

[0062] In this embodiment: a conical cover 46 is provided at the end of the access ring 44, and one end of the conical cover 46 is connected to a conical cover sleeve 47;

[0063] There are two grinding discs 41, and the surrounding grinding head 43 between them corresponds;

[0064] The outer cover of the grinding box 11 is connected to the grinding area driving mechanism 3, which includes a coupling 31 installed on the surface of the side wall protection cover 13, a linkage shaft 32 is installed horizontally in the middle of the coupling 31, and the axial surface of the linkage shaft 32 is sleeved with a driven pulley 33.

[0065] The coupling 31 used improves the axial turning of the specific linkage shaft 32, realizes the mutual cooperation and driving of the corresponding driven pulley 33 and the coupling 31, and ensures the smooth transmission of power.

[0066] In this embodiment: a transmission belt 34 is sleeved on the surface of the driven pulley 33, a driving pulley 35 is installed at the bottom of the transmission belt 34, the surface of the driving pulley 35 is transmission connected with the driven pulley 33 through the transmission belt 34, one end of the driving pulley 35 is provided with a driving motor 36 for driving, the output end of the driving motor 36 is transmission connected with the driving pulley 35, an adjusting side plate 37 is fitted on the bottom of the driving motor 36, and the back side of the adjusting side plate 37 is transmission connected with one end of the grinding disc 41 through a driving roller arranged in linkage.

[0067] The drive motor 36 and the master and slave pulleys adapted to the output shaft realize the transmission operation of the two.

[0068] In this embodiment, a grinding groove 111 is installed at the bottom of the grinding box 11 .

[0069] The grinding groove 111 and the grinding box 11 embedded in the groove are adapted to be assembled on the box structure.

[0070] First, step one: prepare the millet raw materials that need to be ground for delivery;

[0071] First, the delivery position is to place the raw materials from the top of the conical hopper 29. During the placement stage, the raw materials will be delivered to the inside of the delivery slot 28. The corresponding materials are further delivered downward by using the bottom of the slot of the delivery slot 28 to achieve the lowering of the millet. After being lowered to the bottom, the millet will be uniformly moved downward along the material to the area of ​​the grinding slot 111. Finally, the millet will be uniformly delivered to the milling box 11 and will enter the adjacent areas surrounding the grinding head 43 for grinding.

[0072] Step 2: drive the crusher to grind into powder;

[0073] The side wall of the turned-on driving motor 36 is linked, and the output end is used to drive the active pulley 35 on the main shaft to rotate. In the rotation stage, the surface sleeve of the upper transmission belt 34 is used to drive the driven pulley 33 at the top. In the driving stage, the axial direction of the linkage shaft 32 at the rear end is uniformly controlled to drive the transmission. In the early stage of transmission, the top end is uniformly coordinated, and the wheel position of the corresponding driven pulley 33 is rotated to further coordinate the regulation of the active pulley 35 on the surface. When regulating, the linkage shaft 32 at this moment will generate a rotational force. This rotational force will uniformly control the structural regulation of the rear end. After the axial rotation of the linkage shaft 32 at the rear end, one end of the coupling 31 is controlled to achieve adjustment;

[0074] Step 3: The built-in grinding mechanism 4 realizes crushing;

[0075] At this moment, the two grinding discs 41 and the specific grinding base 42 maintained in the grinding box 11 will fit relative to each other, and the conical cover 46 on one side will be driven to rotate in the initial stage of grinding. However, because it is integrated with the grinding disc 41, the technology uses the corresponding surrounding grinding head 43 under the delivery state. The corresponding surrounding grinding head 43 is further completed. At this moment, the rotation of the grinding base 42 further realizes the multiple rotations of the corresponding designated surrounding grinding head 43 and uniformly utilizes the rotational contact of the grinding base 42 between the two. Finally, the grinding is refined and relatively fine powder is gradually formed in the refinement link. After the powder is ground, it will pass through the groove structure of each grinding base 42 and the surrounding grinding head 43 to achieve further opening sharing, and finally be discharged along one end of the discharge groove 194, and the arc-shaped discharge box 195 will discharge the millet powder that has been ground into powder from the area of ​​the material port 196.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A rice grain grinding device for preparing millet biscuits, comprising a grinding mechanism (1) for grinding millet grains, an outer protection mechanism (2) and a grinding area driving mechanism (3); It is characterized in that The milling mechanism (1) implements millet grinding by repeatedly impacting the millet disc to squeeze out particles and crush them; The outer protection mechanism (2) covers the grinding mechanism (1) and allows the material to be input and output; The grinding area driving mechanism (3) is used to coordinate and drive the grinding mechanism (1) to rotate automatically; The outer protection mechanism (2) comprises two concave brackets (21), a protection cabinet (22) is transversely mounted in the middle of the side wall of the concave bracket (21), an inspection side panel (23) is mounted in the middle of the cabinet side wall of the protection cabinet (22), a side wall support frame (24) is hinged in the middle of the inspection side panel (23), a plurality of fitting pads (25) are fitted on the surface of the side wall support frame (24), and a transverse pad (26) is provided in the middle of each fitting pad (25).

2. The rice grinding device for preparing millet biscuits according to claim 1, characterized in that: A millet powder receiving box (27) is installed on the surface of the concave bracket (21) on one side, and a delivery slot (28) is provided at the top of the box body of the millet powder receiving box (27). A conical hopper (29) is provided at the top of the slot of the delivery slot (28), and the bottom of the conical hopper (29) is connected to the delivery slot (28).

3. The rice grinding device for preparing millet biscuits according to claim 2, characterized in that: The side wall of the millet flour receiving box (27) is provided with a discharge port (291), and the side wall of the millet flour receiving box (27) is provided with an exhaust slot (292), wherein a replacement slot for performing internal and external replacement of gas is embedded inside the slot of the exhaust slot (292).

4. The rice grinding device for preparing millet biscuits according to claim 1, characterized in that: The grinding mechanism (1) comprises a grinding box (11) installed inside a concave bracket (21), a fitting connection pad (12) is installed in the middle of the top end of the grinding box (11), both ends of the fitting connection pad (12) are provided with side wall protection covers (13), the cover connection end of the side wall protection cover (13) is provided with a hinged roller (15), the end position of the hinged roller (15) is provided with an arc-shaped fitting plate (14), the side wall of the plate end of the arc-shaped fitting plate (14) is installed with a U-shaped bracket (16), and the middle part of the U-shaped bracket (16) is transversely installed with a driving roller (17).

5. The rice grinding device for preparing millet biscuits according to claim 4, characterized in that: The side wall of the arc-shaped bonding plate (14) is installed with a flip cover bracket (18) for deflection and fixing, and the side wall surface of the flip cover bracket (18) is sequentially provided with a plurality of assembly frames (19) for hinged connection, and one end of the assembly frame (19) is fitted with a toggle sleeve (191), and the sides of the toggle sleeve (191) are symmetrically arranged on the edge side walls of the flip cover bracket (18).

6. The rice grinding device for preparing millet biscuits according to claim 5, characterized in that: A hinged roller shaft (192) is vertically mounted in the middle of the end of the assembly frame (19), and sleeve covers (193) for sleeve limiting are provided at the upper and lower ends of the hinged roller shaft (192). A discharge slot (194) is provided on the side wall of the grinding box (11), and one end of the discharge slot (194) is connected to an arc-shaped discharge box (195), and a material port (196) is provided on the side wall of the box body of the arc-shaped discharge box (195).

7. The rice grinding device for preparing millet biscuits according to claim 6, characterized in that: A grinding mechanism (4) is embedded in the powder grinding box (11), and the grinding mechanism (4) comprises two symmetrical grinding discs (41) installed in the middle of the powder grinding box (11), and the edges of the surfaces of the two grinding discs (41) are surrounded by a grinding base (42), and a plurality of surrounding grinding heads (43) are fitted on the surface of the grinding base (42).

8. The rice grinding device for preparing millet biscuits according to claim 7, characterized in that: The edge of the surrounding grinding head (43) is evenly surrounded by the surface of the corresponding grinding disc (41); the side wall of the grinding disc (41) is equipped with an access ring (44); the surface of the access ring (44) is equipped with a plurality of fastening screws (45); the ends of the plurality of fastening screws (45) pass through one end of the access ring (44) and pass through one end of the grinding disc (41) for connection.

9. The rice grinding device for preparing millet biscuits according to claim 8, characterized in that: The end of the penetrating ferrule (44) is provided with a conical cover (46), and one end of the conical cover (46) is connected to a conical cover sleeve (47); The grinding discs (41) are provided with two, and the surrounding grinding heads (43) therebetween correspond to each other; The outer cover of the grinding box (11) is connected to a grinding area driving mechanism (3), and the grinding area driving mechanism (3) includes a coupling (31) installed on the surface of the side wall protection cover (13), a linkage shaft (32) is installed transversely in the middle of the coupling (31), and the axial surface of the linkage shaft (32) is sleeved with a driven pulley (33).

10. The rice grinding device for preparing millet biscuits according to claim 9, characterized in that: The surface of the driven pulley (33) is sleeved with a transmission belt (34), and a driving pulley (35) is installed at the bottom of the transmission belt (34). The surface of the driving pulley (35) is connected to the driven pulley (33) through the transmission belt (34). One end of the driving pulley (35) is provided with a driving motor (36) for driving. The output end of the driving motor (36) is connected to the driving pulley (35) in a transmission manner. An adjusting side plate (37) is fitted on the bottom of the driving motor (36), and the back side of the adjusting side plate (37) is connected to one end of the grinding disc (41) in a transmission manner through a driving roller arranged in a linkage manner. A grinding groove (111) is installed at the bottom of the grinding box (11).

Images