Multistage flour processing flour mill

Abstract

The utility model relates to a multi-stage flour processing flour mill, and belongs to the technical field of crop production. The flour mill comprises a flour mill body, a coarse grinding machine and a fine grinding machine, and the coarse grinding machine is composed of a discharging hopper, a material blocking disc, a transmission disc, a driving motor and a grinding assembly and used for conducting preliminary crushing on grains; the fine grinding machine is provided with a protection box, a grinding wheel, a fine-hole leakage net and a scraping plate, secondary submerging of materials is achieved through a material returning plate, a spiral blade feeding device and a rotary rod motor, and particles influencing the eating taste are prevented from occurring in the grinding process. The equipment is of a multi-stage transmission structure, linkage of coarse grinding and fine grinding is coordinated through a belt, a transmission rod and a liftable transmission assembly, and efficient classified collection of flour is achieved in combination with a leakage net and a transmission leakage net. By optimizing the structural design, the problems that a traditional flour mill is low in efficiency and uneven in flour quality are solved, and the flour mill has the advantages of being high in grinding precision, stable in flour yield, convenient and fast to operate and the like.

Description

Technical Field

[0001] This utility model relates to the field of agricultural crop production technology, and in particular to a multi-stage flour milling machine. Background Technology

[0002] Traditional stone milling methods face numerous technical bottlenecks. On the one hand, the manual or animal-powered operation is extremely inefficient; a single operator can only produce less than 20 kg of flour per day, just one-tenth the output of modern mechanical milling equipment, making it difficult to meet the demands of large-scale production. On the other hand, traditional mechanical stone mills employ a single-pass grinding process. Material falls into the mill hole by gravity from the hopper and is only crushed once at the interface between the moving and stationary grinding discs before being discharged through a guide tube. This coarse grinding method results in uneven flour particle size; excessively coarse particles affect the texture, while excessively fine powder easily damages the nutritional structure of the flour. According to quality inspection data, the particle size variation coefficient of traditional stone-milled flour is as high as 35%, far exceeding the 15% standard of modern precision milling equipment, severely restricting product quality improvement. With the market's increasing demands for both the quality and quantity of stone-milled flour, traditional stone milling methods are no longer sufficient to meet the industry's development needs, necessitating the development of new milling equipment that balances efficiency and quality. Therefore, developing a flour milling machine with multi-stage grinding capabilities has become a key technological breakthrough for promoting the modernization and upgrading of the stone-milled flour industry. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a multi-stage flour milling machine, which makes up for the defect of uneven flour particle size that occurs when the existing stone mill grinds materials in one pass.

[0004] The technical solution adopted by this utility model is as follows: it includes a grinding mill body, on which a coarse grinding mill is provided, and below the coarse grinding mill a fine grinding mill is provided.

[0005] Preferably, the coarse grinding mill includes a feeding hopper, a material blocking plate on one side of the feeding hopper, a drive motor on one side of the material blocking plate, a belt movably connected to the output end of the drive motor, a transmission disc movably connected to the belt, a transmission rod movably sleeved in the middle of the transmission disc, a support bearing movably sleeved on the transmission rod, a turntable on one side of the support bearing, an abrasive block on the turntable, an abrasive screen on the abrasive block, and a funnel below the abrasive screen.

[0006] The fine grinding mill includes a protective box, inside which is a grinding wheel. A strainer is located below the grinding wheel, and a sliding plate is fixedly connected to one end of the strainer. A transmission strainer is located below the sliding plate, and a scraper is located below the transmission strainer. A collection bucket is located below the scraper, and a buckle is located on the collection bucket. A rotary motor is located on the buckle, and a feeding device is located on the rotary motor. A discharge port is located at one end of the feeding device, and a return plate is located below the discharge port. A grinding motor is located above the return plate, and a handle is located on the outside of the grinding motor.

[0007] In order to achieve multi-stage grinding and efficient graded collection through an overall structure.

[0008] Preferably, the feeding device includes a rotary rod, on which spiral blades are fixedly connected.

[0009] To achieve uniform material transport from the coarse mill to the fine mill, ensure a continuous and efficient grinding process, and avoid particle accumulation.

[0010] Preferably, a turntable is movably sleeved on the transmission rod.

[0011] To ensure uniform pressure distribution during the grinding process and to adapt to the crushing requirements of different materials.

[0012] Preferably, the material blocking disc can be manually adjusted.

[0013] To adapt to the crushing requirements of different grains.

[0014] Preferably, the fine grinding mill is equipped with a handle and a buckle.

[0015] To ensure operational stability and ease of use.

[0016] Preferably, the bottom of the grinding mill body is provided with an anti-slip pad.

[0017] To prevent slippage or displacement during operation, and to ensure processing stability and operational safety.

[0018] Preferably, a grinding wheel is provided below the funnel.

[0019] To ensure a seamless transition between the coarse and fine grinding processes and improve overall processing efficiency.

[0020] Preferably, the transmission mesh has multiple tiny holes.

[0021] To ensure uniformity of flour particles and improve the efficiency of graded collection.

[0022] The beneficial effects of this utility model are as follows: This multi-stage flour mill, through the linkage design of the drive motor, belt and transmission disc, drives the turntable and grinding blocks to rotate at high speed, realizing rapid crushing of grains and significantly improving the initial processing efficiency. The gap between the material blocking disc and the transmission disc can be manually adjusted to adapt to the crushing requirements of different grains, ensuring the uniformity of the material after coarse grinding. The feeding hopper and funnel, together with the screening function of the grinding screen, prevent material accumulation or blockage, ensuring the continuity of the coarse grinding and fine grinding processes. The cooperation between the support bearing and the transmission rod effectively disperses the grinding pressure, reduces equipment vibration, and extends service life.

[0023] The grinding wheel and fine-mesh screen work together, with a spiral blade feeding device driven by a rotary motor, to achieve secondary fine grinding of materials, eliminating coarse particle residue and ensuring fine and uniform flour. Automated return and grading collection: a return plate sends incompletely ground particles back to the grinding wheel for secondary processing, avoiding waste; the screen, in conjunction with a transmission screen, allows for flour grading and collection according to fineness, improving product quality. Convenient and safe operation: the protective box is equipped with handles and buckles for easy disassembly and maintenance; the scraper and collection bin design reduces manual intervention and improves operational safety; optimized energy consumption: the linkage control between the lifting transmission component and the grinding motor reduces ineffective energy consumption while ensuring uniform grinding pressure distribution, extending equipment life. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall analytical structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the coarse grinding mill in this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the fine grinding mill of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the fine grinding mill in this utility model;

[0029] Figure 6 This is a structural schematic diagram of the fine grinding mill structure of this utility model;

[0030] Explanation of reference numerals in the attached drawings: 1. Grinding mill body; 2. Coarse grinding mill; 201. Feed hopper; 202. Material blocking plate; 203. Transmission plate; 204. Belt; 205. Drive motor; 206. Transmission rod; 207. Support bearing; 208. Grinding block; 209. Turntable; 210. Grinding mesh screen; 211. Funnel; 3. Fine grinding mill; 301. Protective box; 302. Discharge port; 303. Feeding device; 3031. Spiral blade; 3032. Rotary rod; 304. Rotary rod motor; 305. Handle; 306. Buckle; 307. Collection bucket; 308. Grinding wheel; 309. Mesh screen; 310. Slide plate; 311. Transmission mesh screen; 312. Return plate; 313. Scraper; 314. Grinding motor. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] like Figures 1-5 As shown, this embodiment provides a multi-stage flour milling machine, with a coarse mill 2 on the mill body 1 and a fine mill 3 below the coarse mill 2;

[0033] The coarse grinding mill 2 includes a hopper 201, a material blocking plate 202 on one side of the hopper 201, a drive motor 205 on one side of the material blocking plate 202, a belt 204 movably connected to the output end of the drive motor 205, a transmission disc 203 movably connected to the belt 204, a transmission rod 206 movably sleeved in the middle of the transmission disc 203, a support bearing 207 movably sleeved on the transmission rod 206, a turntable 209 on one side of the support bearing 207, an abrasive block 208 on the turntable 209, an abrasive screen 210 on the abrasive block 208, and a funnel 211 below the abrasive screen 210.

[0034] The fine grinding mill 3 includes a protective box 301. Inside the protective box 301, there is a grinding wheel 308. Below the grinding wheel 308, there is a mesh screen 309. One end of the mesh screen 309 is fixedly connected to a sliding plate 310. Below the sliding plate 310, there is a transmission mesh screen 311. Below the transmission mesh screen 311, there is a scraper 313. Below the scraper 313, there is a collection bucket 307. The collection bucket 307 is equipped with a buckle 306. The buckle 306 is equipped with a rotary motor 304. The rotary motor 304 is equipped with a feeding device 303. One end of the feeding device 303 is equipped with a discharge port 302. Below the discharge port 302, there is a return plate 312. Above the return plate 312, there is a grinding motor 314. The outside of the grinding motor 314 is equipped with a handle 305.

[0035] In this embodiment, the coarse grinding mill 2 drives the abrasive blocks 208 on the turntable 209 to rotate at high speed via the drive motor 205, belt 204, transmission disc 203, and transmission rod 206, which initially crushes the grains input into the hopper 201. After being screened by the abrasive screen 210, the grains enter the fine grinding mill 3 through the funnel 211. The fine grinding mill 3 further refines the coarsely ground material through the grinding wheel 308. The screen 309 and the transmission screen 311 collect the flour in stages, and the return plate 312 sends the substandard particles back for secondary processing. The spiral blades 3031 of the feeding device 303 are driven by the rotating rod 3032 to ensure continuous and uniform material feeding, avoid particle accumulation, and improve overall grinding efficiency.

[0036] A multi-stage flour milling machine, wherein the feeding device 303 includes a rotary rod 3032, and a spiral blade 3031 is fixedly connected to the rotary rod 3032.

[0037] The feeding device 303 drives the spiral blade 3031 to rotate through the rotary rod 3032, so as to continuously and uniformly transport the material that needs secondary processing to the fine grinding mill 3, avoid particle accumulation and improve grinding efficiency.

[0038] Please see Figures 1-5 As shown, a multi-stage flour milling machine has a turntable 209 movably connected to a transmission rod 206.

[0039] In this embodiment, a turntable 209 is movably sleeved on the transmission rod 206 to ensure that power is efficiently transmitted from the drive motor 205 to the abrasive block 208, while dispersing the grinding pressure and reducing vibration, thereby improving the operating stability, grinding uniformity and service life of the coarse grinding mill 2.

[0040] Please see Figures 1-5 As shown, a multi-stage flour milling machine has a material blocking plate 202 that can be manually adjusted.

[0041] In this embodiment, the manual adjustment function of the material blocking disc 202 is used to flexibly control the flow rate and gap size of the material entering the crushing zone, adapt to the hardness and particle size requirements of different grains, thereby adjusting the coarse grinding particle size and ensuring the uniformity of the crushed material, avoiding over-crushing or particle residue, and ultimately improving the powder quality and equipment adaptability.

[0042] Please see Figures 1-5 As shown, a multi-stage flour milling machine is provided with a handle 305 and a buckle 306 on the fine mill 3.

[0043] In this embodiment, the handle 305 and buckle 306 provided on the fine grinding mill 3 are used to improve the ease of operation and safety of the equipment. The handle 305 facilitates the quick handling of the equipment, while the buckle 306 ensures that the collection bucket 307 is firmly fixed during operation to prevent accidental detachment. At the same time, it supports quick maintenance and component replacement, reduces the intensity of manual operation, and ensures the continuity of the processing flow.

[0044] Please see Figures 1-5 As shown, a multi-stage flour milling machine is provided with an anti-slip pad at the bottom of the mill body 1.

[0045] In this embodiment, the anti-slip pads provided at the bottom of the grinding mill body 1 are used to enhance the friction between the equipment and the ground, prevent sliding or displacement caused by vibration or external force during operation, thereby ensuring processing stability and operational safety, and reducing wear or failure caused by equipment movement.

[0046] Please see Figures 1-5 As shown, a multi-stage flour milling machine has a grinding wheel 308 located below the funnel 211.

[0047] In this embodiment, the grinding wheel 308 set below the funnel 211 is used to realize the direct connection and rapid transfer of the material after coarse grinding to the fine grinding mill 3, ensuring seamless connection between the coarse grinding and fine grinding processes, avoiding material accumulation or interruption, thereby improving the overall processing efficiency and continuity.

[0048] Please see Figures 1-5 As shown, a multi-stage flour milling machine has multiple tiny holes on its conveyor mesh 311.

[0049] In this embodiment, multiple tiny holes on the transmission mesh 311 are used to perform secondary sieving of the ground flour, separating the qualified fine powder from the incompletely ground particles, ensuring the uniformity of flour particles and improving the efficiency of graded collection, while preventing coarse particles from entering the final product, ensuring the fineness of the powder and the quality of processing.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of the invention. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage flour processing mill comprising a mill body (1), characterised in that: The flour mill body (1) is provided with a coarse grinder (2), and the coarse grinder (2) is provided below with a fine grinder (3). The coarse grinder (2) comprises a lower hopper (201), one side of the lower hopper (201) is provided with a material blocking disc (202), one side of the material blocking disc (202) is provided with a driving motor (205), the output end of the driving motor (205) is movably connected with a belt (204), the belt (204) is movably connected with a transmission disc (203), the transmission disc (203) is movably sleeved with a transmission rod (206) in the middle, the transmission rod (206) is movably sleeved with a supporting bearing (207), one side of the supporting bearing (207) is provided with a rotating disc (209), the rotating disc (209) is provided with a grinding block (208), the grinding block (208) is provided with a grinding screen (210), the grinding screen (210) is provided below with a hopper (211). The fine grinder (3) comprises a protection box (301), the inside of the protection box (301) is provided with a grinding wheel (308), the grinding wheel (308) is provided below with a screen (309), one end of the screen (309) is fixedly connected with a sliding plate (310), the sliding plate (310) is provided below with a conveying screen (311), the conveying screen (311) is provided below with a scraper (313), the scraper (313) is provided below with a collecting barrel (307), the collecting barrel (307) is provided above with a buckle (306), the buckle (306) is provided above with a rotary rod motor (304), the rotary rod motor (304) is provided above with a feeding device (303), one end of the feeding device (303) is provided with a discharge port (302), the discharge port (302) is provided below with a material returning plate (312), the material returning plate (312) is provided above with a grinding motor (314), the grinding motor (314) is provided outside with a handle (305).

2. A multi-stage flour processing mill as claimed in claim 1, characterized in that: The feeding device (303) comprises a rotary rod (3032), and the rotary rod (3032) is fixedly connected with a spiral blade (3031).

3. A multi-stage flour processing mill as claimed in claim 1, characterized in that: The transmission rod (206) is movably sleeved with a rotating disc (209).

4. A multi-stage flour processing mill as claimed in claim 1, characterized in that: The fine grinder (3) is provided with a handle (305) and a buckle (306).

5. A multi-stage flour processing mill as claimed in claim 1, characterized in that: The flour mill body (1) is provided below with an anti-skid pad.

6. A multi-stage flour processing mill as claimed in claim 1, characterized in that: The hopper (211) is provided below with a grinding wheel (308).

7. A multi-stage flour processing mill as claimed in claim 1, characterized in that: A plurality of small holes are formed in the conveying screen (311).

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