Automatic grinding equipment and rice flour grinding process

Abstract

The present invention belongs to the technical field of rice noodle processing, and specifically relates to an automatic grinding device and a rice noodle grinding process, comprising a housing; a grinding cylinder, the grinding cylinder is fixedly installed inside the housing, a feed trough is provided at the upper end of the grinding cylinder, and discharge holes are evenly distributed at the lower end; a grinding assembly, the grinding assembly is arranged inside the grinding cylinder; a cooling mechanism, the cooling mechanism is arranged on the grinding assembly; a screening mechanism, the screening mechanism is also arranged in the housing; a driving part, the driving part is arranged below the housing; wherein the screening mechanism includes a linkage part, the linkage part is arranged at the lower end of the inner cavity of the housing, a filter part is rotatably installed in the housing, and a cleaning part is arranged at the upper end of the filter part. The present invention can automatically re-grind and cool, significantly improves processing efficiency, prevents high-temperature adhesion of rice noodles, ensures product quality, and has a self-cleaning function.

Description

Technical Field

[0001] The invention belongs to the technical field of rice noodle processing, and in particular relates to automatic grinding equipment and a rice noodle grinding process. Background Art

[0002] Rice noodles are a traditional food made from rice as the main raw material. The production process of this food first requires the rice to be washed and soaked, and then processed into a fine powder material through grinding equipment. In the processing of rice noodles, grinding equipment plays a vital role. It can grind rice into powder evenly to ensure that the texture of rice noodles is fine and uniform. The production process of rice noodles is complex and diverse, and different regions and cultural backgrounds will give rice noodles different flavors and characteristics. Whether as a staple food or a snack, rice noodles are deeply loved by people and have become one of the indispensable delicacies on the table.

[0003] There are also rice noodle grinding devices of the required type in the prior art, such as a rice noodle processing grinding device with Chinese patent publication number CN216459331U, which adopts a grinding mechanism and a filtering mechanism to solve the problem that the rice noodle processing grinding device cannot perform secondary grinding on the rice, resulting in uneven grinding of the rice and the appearance of large and small particles, resulting in poor quality of the rice noodles. The method achieves that the rotating shaft is driven to rotate by a starting motor, and the rotating shaft drives the first grinding wheel to rotate, so that the rice is ground, and the ground rice falls onto the surfaces of the first fixed frame and the second grinding frame, so that the rice is ground secondary, so that the grinding of the rice is uniform and more delicate.

[0004] Another example is a baby rice flour grinding device with Chinese patent publication number CN213825090U. The device grinds the raw materials through a grinding roller to perform rough processing on the raw materials. When passing through the conveying chamber, the spiral blade contacts the grinding block, so that the rice flour particles are further ground and crushed, and the secondary crushing ensures that the rice flour is completely crushed. The material is discharged through the guide plate and enters the filter basket. The driving mechanism pushes the filter basket to swing back and forth to screen the rice flour in the filter basket and intercept large particles. The fineness of the particles is high, which ensures the quality of the product. The push plate cooperates with the telescopic cylinder to realize the transportation of the material.

[0005] During use, the above-mentioned grinding equipment can perform secondary grinding of raw materials and screen the ground powder. However, when grinding for a long time, the equipment is prone to local overheating. This overheating may cause the rice noodles to stick or burn due to high temperature, thus affecting the quality of the rice noodles. In addition, the unqualified powder produced during the screening process needs to be manually removed and re-put into the device for secondary grinding. This step is time-consuming and labor-intensive, and there is a risk of secondary contamination of the rice noodles. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic grinding device and a rice noodle grinding process, which can automatically re-grind and cool, significantly improve the processing efficiency, prevent the rice noodles from sticking together at high temperature, ensure product quality, and have a self-cleaning function.

[0007] The technical solution adopted by the present invention is as follows:

[0008] An automatic grinding device comprises a housing;

[0009] A grinding cylinder, which is fixedly installed inside the housing, has a feed trough at the upper end and evenly distributed discharge holes at the lower end;

[0010] A grinding assembly, wherein the grinding assembly is arranged inside the grinding cylinder and cooperates with the grinding cylinder to grind the raw material;

[0011] A cooling mechanism, wherein the cooling mechanism is disposed on the grinding assembly and is used to cool the grinding assembly;

[0012] A screening mechanism is also disposed in the housing and located outside the grinding cylinder, and is used to screen the ground powder;

[0013] A driving unit, which is arranged below the housing and is used to drive the device to operate;

[0014] Among them, the screening mechanism includes a linkage part, which is arranged at the lower end of the inner cavity of the shell. A filter part is rotatably installed in the shell for screening the ground powder. A cleaning part is arranged at the upper end of the filter part. When the driving part is in operation, it drives the grinding assembly to rotate and drives the filter part to rotate through the linkage part.

[0015] In a preferred embodiment, the grinding assembly includes a hollow disk, which is arranged in a grinding cylinder and has through grooves distributed in an annular manner. A grinding seat is provided in an annular manner on the outer wall of the hollow disk, and a cavity is provided on the grinding seat.

[0016] In a preferred embodiment, a support seat is provided at the lower end of the shell, and a shock-absorbing pad is provided at the lower end of the support seat, and anti-slip grooves are provided on the bottom surface of the shock-absorbing pad. A feed hopper is detachably mounted on the front side of the shell by bolts, and one end of the feed hopper located inside the shell is circular and extends into the hollow disk, and a discharge hopper is connected to the lower end of the shell.

[0017] In a preferred embodiment, the cooling mechanism includes an inner tube and an outer tube, the inner tube is arranged in the outer tube, and one end of the inner tube and the outer tube is fixedly connected, the outer tube is rotatably connected to the outer shell, the inner tube is provided with a liquid inlet pipe in an annular distribution, and the liquid inlet pipe extends to the outside of the outer tube and is connected to the cavity, the outer tube is provided with a liquid outlet pipe in an annular distribution, and the liquid outlet pipe is also connected to the cavity, one end of the outer tube is rotatably connected to a first hollow ring through a sealed bearing, the first hollow ring is connected to a drain pipe, one end of the inner tube is rotatably connected to a second hollow ring through a sealed bearing, and the first hollow ring and the second hollow ring are both fixedly connected to the outer shell by a bracket, the second hollow ring is connected to an infusion tube, and a first transmission gear is installed on the outer wall of the outer tube.

[0018] In a preferred embodiment, the linkage part includes a rotating rod, which is rotatably connected to the outer shell, and one end of the rotating rod extends to the outside of the outer shell, the end of the rotating rod located inside the outer shell is installed with a second transmission gear, and the end of the rotating rod located outside the outer shell is installed with a third transmission gear.

[0019] In a preferred embodiment, the filter part includes a cylinder, which is rotatably installed in the outer shell, the outer ring of the cylinder is fixedly installed with a gear ring, the inner ring of the cylinder is annularly arranged with a storage box, the cylinder is annularly arranged with installation grooves, and a filter is arranged in the installation grooves.

[0020] In a preferred embodiment, the cleaning part includes a first round rod and a second round rod, the first round rod and the second round rod are both rotatably connected to the outer shell, a brush roller is fixedly sleeved on the first round rod, fourth transmission gears are fixedly installed at both ends of the first round rod, fifth transmission gears are fixedly installed at both ends of the second round rod, and striking bars are connected to the second round rod in an array, and the striking bars are made of rubber.

[0021] In a preferred embodiment, the driving part comprises a driving motor, the driving motor is mounted on a supporting seat, and a driving gear is mounted on an output shaft of the driving motor.

[0022] In a preferred embodiment, the liquid inlet pipe and the liquid outlet pipe are both made of steel pipes, and the outer pipe is fixedly connected to the hollow disk by the liquid inlet pipe, the liquid outlet pipe.

[0023] A rice flour grinding process, applied to the above-mentioned automatic grinding equipment, comprises the following steps:

[0024] Step 1: Pour the raw material to be ground into the equipment through the feed hopper, and the raw material then falls into the hollow plate and is discharged through the slot on the hollow plate and enters the grinding cylinder;

[0025] Step 2: Start the driving motor to drive the grinding assembly to rotate for grinding and rotate the rotating rod;

[0026] Step 3: The ground powder falls into the cylinder through the discharge hole at the bottom of the grinding cylinder. The rotation of the rotating rod drives the second transmission gear to rotate. The second transmission gear meshes with the gear ring on the outer wall of the cylinder, thereby driving the cylinder to rotate. The rotation of the cylinder realizes the screening of the internal powder. The qualified powder passes through the filter on the cylinder, falls into the outer shell, and is finally discharged from the discharge hopper;

[0027] Step 4: Unqualified powders are intercepted by the filter in the cylinder. As the cylinder rotates, these powders re-enter the grinding cylinder for grinding;

[0028] Step 5: During grinding, pump in coolant to cool the grinding seat to reduce its surface temperature and prevent the grinding seat from overheating due to long-term grinding;

[0029] Step 6: The gear ring on the cylinder is also meshed with the fourth transmission gear and the fifth transmission gear to drive the first round rod and the second round rod to rotate. The rotation of the second round rod drives the rubber striking bar to rotate. At the same time, the rotation of the first round rod drives the brush roller to rotate.

[0030] The technical effects achieved by the present invention are:

[0031] The present invention realizes the integrated processing of multiple steps such as rice noodle grinding, screening, cooling and cleaning through the design of automatic grinding equipment. In particular, by setting up a cylinder for automatic screening and using a storage box to automatically return unqualified powder to the grinding cylinder for re-grinding, the step of manually re-loading unqualified powder in the prior art is avoided, and the processing efficiency is significantly improved. At the same time, since the entire process is completed inside the shell, the risk of contamination that unqualified powder may be subjected to during the re-loading process is reduced, thereby improving product quality;

[0032] Before grinding, the present invention pumps coolant into the grinding seat through the infusion tube to cool the grinding seat and reduce its surface temperature. This design effectively avoids the phenomenon that the temperature of the grinding seat is too high due to long-term grinding, thereby preventing the rice noodles from sticking or burning due to high temperature. At the same time, the used coolant flows back to the outer tube through the liquid outlet pipe to form a cycle, ensuring the continuous flow of the coolant, achieving continuous cooling, and further reducing energy consumption and environmental impact. Through continuous cooling, the quality of the rice noodles is guaranteed, avoiding common quality problems in the traditional grinding process, and improving the product qualification rate;

[0033] The present invention provides a beating bar and a brush roller to use inertia to shake off the powder adhered to the cylinder and its filter screen, and the bristles are inserted into the mesh of the filter screen to clean it, thereby preventing the filter screen from being blocked. This design ensures the screening effect and efficiency, while also reducing the maintenance cost and downtime of the equipment. This automatic cleaning mechanism prolongs the equipment maintenance cycle, reduces the maintenance frequency, reduces production interruptions caused by equipment downtime, and enhances the reliability and continuous production capacity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a rear side view of the overall structure of the present invention;

[0036] Figure 3 The present invention Figure 1 A cross-sectional view of

[0037] Figure 4 It is a schematic diagram of the internal structure of the housing of the present invention;

[0038] Figure 5 The present invention Figure 4 Rear and side view;

[0039] Figure 6 The present invention Figure 5 's upward side view;

[0040] Figure 7 It is a schematic diagram of the connection between the outer tube and the inner tube of the present invention;

[0041] Figure 8 is a cross-sectional view of the grinding seat of the present invention;

[0042] Fig. 9 is a cross-sectional view of a hollow disk of the present invention;

[0043] Fig.10 It is a cross-sectional view of the housing of the present invention.

[0044] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0045] 1. Shell; 2. Grinding cylinder; 3. Grinding assembly; 4. Cooling mechanism; 5. Screening mechanism; 6. Driving unit; 7. Support seat; 8. Feed hopper; 9. Discharge hopper;

[0046] 31. hollow disk; 32. grinding seat; 33. cavity;

[0047] 401, inner tube; 402, outer tube; 403, liquid inlet tube; 404, liquid outlet tube; 405, first hollow ring; 406, liquid discharge tube; 407, second hollow ring; 408, liquid infusion tube; 409, first transmission gear;

[0048] 51. linkage unit; 52. filtering unit; 53. cleaning unit;

[0049] 511, rotating rod; 512, second transmission gear; 513, third transmission gear;

[0050] 521, cylinder; 522, gear ring; 523, material storage box; 524, filter screen;

[0051] 531, first round rod; 532, brush roller; 533, fourth transmission gear; 534, second round rod; 535, fifth transmission gear; 536, striking bar;

[0052] 601, driving motor; 602, driving gear. DETAILED DESCRIPTION

[0053] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0054] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0055] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0056] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0057] Please refer to the attached Figures 1 to 10 As shown, this embodiment provides an automatic grinding device, including a housing 1;

[0058] The grinding cylinder 2 is fixedly installed inside the housing 1, and a feed trough is provided at the upper end of the grinding cylinder 2, and discharge holes are evenly distributed at the lower end thereof;

[0059] The grinding assembly 3 is arranged inside the grinding cylinder 2 and cooperates with the grinding cylinder 2 to grind the raw material;

[0060] A cooling mechanism 4, which is disposed on the grinding assembly 3 and is used to cool the grinding assembly 3;

[0061] A screening mechanism 5 is also provided in the housing 1 and is located outside the grinding cylinder 2, and is used for screening the ground powder;

[0062] The driving part 6 is arranged below the housing 1 and is used to drive the device to operate;

[0063] The screening mechanism 5 includes a linkage part 51, which is arranged at the lower end of the inner cavity of the housing 1. A filter part 52 is rotatably installed in the housing 1 for screening the ground powder. A cleaning part 53 is arranged at the upper end of the filter part 52. When the driving part 6 is in operation, the grinding assembly 3 is driven to rotate, and the filter part 52 is driven to rotate through the linkage part 51.

[0064] The driving unit 6 includes a driving motor 601 . The driving motor 601 is mounted on the supporting seat 7 . A driving gear 602 is mounted on the output shaft of the driving motor 601 .

[0065] In this embodiment, the housing 1 is the main structure of the device, which is used to support and protect the internal components. The grinding cylinder 2 is fixedly installed inside the housing 1, with a feed port at the upper end and multiple discharge holes at the lower end; the grinding assembly 3 is arranged inside the grinding cylinder 2, and cooperates with the grinding cylinder 2 to finely grind the raw materials. The cooling mechanism 4 is located above the grinding assembly 3, which is used to cool the grinding assembly 3 during the grinding process to prevent overheating. The screening mechanism 5 is arranged in the housing 1, located on the outside of the grinding cylinder 2, and is used to screen the ground powder to achieve the required particle size. The driving part 6 is located below the housing 1, including a driving motor 601 and a driving gear 602, which is used to provide power to operate the equipment. The linkage part 51, the filtering part 52 and the cleaning part 53 in the screening mechanism 5 work together, the filtering part 52 performs powder screening, and the cleaning part 53 is used to clean the filtering part 52. The driving motor 601 drives the movement of the entire grinding assembly 3 and the screening mechanism 5 through the driving gear 602.

[0066] Next, please refer to Figures 4 to 6 The grinding assembly 3 includes a hollow disk 31, which is arranged in the grinding cylinder 2, and the hollow disk 31 is provided with through grooves distributed in an annular manner, and the outer wall of the hollow disk 31 is provided with a grinding seat 32 distributed in an annular manner, and the grinding seat 32 is provided with a cavity 33.

[0067] In this embodiment, the raw materials to be ground are poured from the feed hopper 8, and then the raw materials fall from the feed hopper 8 into the hollow disk 31 below. The hollow disk 31 is provided with a plurality of through slots, through which the raw materials are discharged and then fall into the grinding cylinder 2 below. After the drive motor 601 is started, the power of the motor is transmitted to the hollow disk 31 and the grinding seat 32, causing them to start rotating. As the hollow disk 31 and the grinding seat 32 rotate, the raw materials are ground therein and finally ground into fine powder.

[0068] Secondly, please refer to Fig.10 A support seat 7 is provided at the lower end of the shell 1, and a shock-absorbing pad is provided at the lower end of the support seat 7, and anti-slip grooves are provided on the bottom surface of the shock-absorbing pad. A feed hopper 8 is detachably installed on the front of the shell 1 by bolts, and one end of the feed hopper 8 located in the shell 1 is circular and extends into the hollow disk 31. The lower end of the shell 1 is connected to a discharge hopper 9.

[0069] In this embodiment, a support base 7 is installed at the bottom of the housing 1 to stabilize the device. The bottom of the support base 7 is also equipped with a shock-absorbing pad to absorb the vibration generated when the equipment is in operation, thereby improving the stability and service life of the equipment. The bottom surface of the shock-absorbing pad is designed with anti-slip grooves to ensure that the equipment can remain stable on different surfaces. A feed hopper 8 is connected to the front of the equipment by bolts, and the feed hopper 8 can be easily disassembled and installed. One end of the feed hopper 8 is round and can extend into the hollow disk 31, which is to ensure that the material can smoothly enter the interior of the equipment from the feed hopper 8. A discharge hopper 9 is also connected to the lower end of the housing 1 for collecting and exporting processed or treated materials.

[0070] Next, please refer to Figures 7 to 9 The cooling mechanism 4 includes an inner tube 401 and an outer tube 402. The inner tube 401 is arranged in the outer tube 402, and one end of the inner tube 401 and the outer tube 402 are fixedly connected. The outer tube 402 is rotatably connected to the housing 1. The inner tube 401 is provided with a liquid inlet pipe 403 in an annular distribution, and the liquid inlet pipe 403 extends to the outside of the outer tube 402 and is connected to the cavity 33. The outer tube 402 is provided with a liquid outlet pipe 404 in an annular distribution, and the liquid outlet pipe 404 is also connected to the cavity 33. One end of the outer tube 402 is rotatably connected to the first air chamber 1 through a sealing bearing. The core ring 405, the first hollow ring 405 is connected to a discharge pipe 406, one end of the inner tube 401 is rotatably connected to the second hollow ring 407 through a sealed bearing, and the first hollow ring 405 and the second hollow ring 407 are both fixedly connected to the outer shell 1 by a bracket, the second hollow ring 407 is connected to a liquid infusion tube 408, and the outer wall of the outer tube 402 is installed with a first transmission gear 409, wherein the liquid inlet pipe 403 and the liquid outlet pipe 404 are both made of steel pipes, and the outer tube 402 is fixedly connected to the hollow disk 31 by the liquid inlet pipe 403 and the liquid outlet pipe 404.

[0071] In this embodiment, during the grinding operation, in order to ensure the normal operation of the equipment and improve the grinding efficiency, the grinding seat 32 needs to be effectively cooled. The coolant is pumped through the liquid infusion pipe 408. The liquid infusion pipe 408 delivers the coolant to the inner tube 401. Then, the coolant flows along the inner tube 401 into a plurality of liquid inlet pipes 403. These liquid inlet pipes 403 evenly distribute the coolant to the cavity 33 on the grinding seat 32. In this way, the coolant can directly act on the surface of the grinding seat 32, effectively reducing its temperature.

[0072] The purpose of this cooling mechanism is to prevent the grinding seat 32 from having adverse phenomena due to excessively high temperatures during a long grinding operation. High temperatures can cause the rice noodles produced during the grinding process to stick together or burn, thereby affecting the quality of the rice noodles and the grinding effect. Through continuous cooling, these problems can be avoided, ensuring the quality of the rice noodles and the smooth progress of the grinding operation.

[0073] In addition, after completing the cooling task, the coolant will flow back to the outer tube 402 through the outlet pipe 404. The outer tube 402 guides the coolant to the first hollow ring 405, and finally, the coolant is discharged from the drain pipe 406, completing the entire cooling cycle. The design of this circulation system allows the coolant to flow continuously, thereby achieving a continuous cooling effect and reducing energy consumption and environmental impact.

[0074] In summary, not only can the temperature control of the grinding seat 32 be ensured during long-term operation, but also the grinding efficiency and the quality of rice noodles can be improved, while taking into account the needs of environmental protection and energy saving.

[0075] Please refer again Figure 2 and Figure 6 The linkage part 51 includes a rotating rod 511, which is rotatably connected to the shell 1, and one end of the rotating rod 511 extends to the outside of the shell 1. The end of the rotating rod 511 located inside the shell 1 is installed with a second transmission gear 512, and the end of the rotating rod 511 located outside the shell 1 is installed with a third transmission gear 513.

[0076] Please refer again Figure 4 The filter portion 52 includes a cylinder 521, which is rotatably mounted in the housing 1. A gear ring 522 is fixedly mounted on the outer ring of the cylinder 521. A material storage box 523 is arranged in an annular manner on the inner ring of the cylinder 521. An installation groove is arranged in an annular manner on the cylinder 521, and a filter screen 524 is arranged in the installation groove. The filter screen 524 is evenly distributed with filter holes (not shown in the figure).

[0077] In this embodiment, during the grinding process, the finely ground powder will slowly fall into the cylinder 521 below through the discharge hole at the lower end of the grinding cylinder 2. At the same time, the rotating rod 511 starts to rotate, and its movement drives the rotation of the second transmission gear 512. The second transmission gear 512 is tightly meshed with the gear ring 522 on the outer wall of the cylinder 521, forming an effective transmission mechanism. This mechanism enables the cylinder 521 to rotate accordingly, thereby screening the powder inside.

[0078] During the rotation of the cylinder 521, powders that meet the quality standards will pass through the filter screen 524 provided on the cylinder 521 and smoothly fall into the housing 1. These qualified powders will eventually be discharged through the discharge hopper 9 at the bottom of the housing 1, completing the entire screening and grinding process. However, powders that fail to meet the quality requirements will be effectively intercepted by the filter screen 524 in the cylinder 521.

[0079] As the cylinder 521 continues to rotate, these unqualified powders will gradually accumulate in the storage box 523 inside the cylinder 521. When the storage box 523 rotates to its highest position, the powder inside will slide out of the storage box 523 due to its own gravity. These powders will then re-enter the grinding cylinder 2 along the feeding slot at the upper end of the grinding cylinder 2 to start a new round of grinding process.

[0080] This design not only solves the cumbersome steps of manually reloading unqualified powder in the prior art, significantly improving the efficiency of the entire processing process, but also the entire screening and grinding process is completed in the closed housing 1. This not only avoids the contamination of unqualified powder during the reloading process, thereby ensuring the stability and reliability of product quality, but also greatly reduces the labor intensity of manual operation and improves the level of production automation.

[0081] Please refer again Figure 4 The cleaning portion 53 includes a first round rod 531 and a second round rod 534, which are both rotatably connected to the outer shell 1, a brush roller 532 is fixedly sleeved on the first round rod 531, fourth transmission gears 533 are fixedly installed at both ends of the first round rod 531, fifth transmission gears 535 are fixedly installed at both ends of the second round rod 534, and striking bars 536 are connected to the second round rod 534 in an array arrangement, and the striking bars 536 are made of rubber.

[0082] In this embodiment, the gear ring 522 on the cylinder 521 is closely meshed with the fourth transmission gear 533 and the fifth transmission gear 535 for transmission, and this cooperation can effectively cause the first round rod 531 and the second round rod 534 to rotate. During the rotation of the second round rod 534, the rubber hitting bar 536 will be driven to rotate. This rotation utilizes the principle of inertia, and can vigorously whip the powder raw materials adhered to the cylinder 521 and its inner wall, so as to shake off the adhered powder. At the same time, the rotation of the first round rod 531 will also drive the rotation of the brush roller 532. During the rotation of the brush roller 532, the bristles on it can flexibly extend into the sieve holes on the filter screen 524. This deep cleaning action can effectively remove the residual substances on the filter screen 524 and avoid the filter screen 524 from being blocked. In this way, it can be ensured that the screening effect and screening efficiency of the filter screen 524 are always maintained in the best state.

[0083] A rice flour grinding process, applied to the above-mentioned automatic grinding equipment, comprises the following steps:

[0084] Step 1: Pour the raw material to be ground into the equipment through the feed hopper 8, and the raw material then falls into the hollow plate 31, and is discharged through the through groove on the hollow plate 31 and enters the grinding cylinder 2;

[0085] Step 2: Start the driving motor 601 to drive the grinding assembly 3 to rotate for grinding, and make the rotating rod 511 rotate;

[0086] Step 3: The ground powder falls into the cylinder 521 through the discharge hole at the bottom of the grinding cylinder 2. The rotation of the rotating rod 511 drives the second transmission gear 512 to rotate. The second transmission gear 512 meshes with the gear ring 522 on the outer wall of the cylinder 521, thereby driving the cylinder 521 to rotate. The rotation of the cylinder 521 realizes the screening of the internal powder. The qualified powder passes through the filter screen 524 on the cylinder 521, falls into the outer shell 1, and is finally discharged from the discharge hopper 9.

[0087] Step 4: Unqualified powders are intercepted by the filter screen 524 in the cylinder 521. As the cylinder 521 rotates, the powders re-enter the grinding cylinder 2 for grinding;

[0088] Step 5: During grinding, coolant is pumped into the grinding seat 32 to cool it down, thereby lowering its surface temperature and preventing the grinding seat 32 from overheating due to long-term grinding;

[0089] Step 6: The gear ring 522 on the cylinder 521 is also meshed with the fourth transmission gear 533 and the fifth transmission gear 535 to drive the first round rod 531 and the second round rod 534 to rotate. The rotation of the second round rod 534 drives the rubber striking bar 536 to rotate. At the same time, the rotation of the first round rod 531 drives the brush roller 532 to rotate.

[0090] The working principle of the present invention is:

[0091] The raw material to be ground is poured into the feed hopper 8, and then the raw material falls into the hollow plate 31 from the feed hopper 8, and is discharged through the through slot on the hollow plate 31, and then falls into the grinding cylinder 2; the driving motor 601 is started to drive the driving gear 602 to rotate, and the driving gear 602, the third transmission gear 513 and the first transmission gear 409 transmit power through the toothed belt, so that the outer tube 402 and the rotating rod 511 rotate;

[0092] The rotation of the outer tube 402 drives the hollow disk 31 and the grinding seat 32 to perform the grinding operation. The ground powder falls into the cylinder 521 through the discharge hole at the bottom of the grinding cylinder 2. The rotation of the rotating rod 511 drives the second transmission gear 512 to rotate. The second transmission gear 512 meshes with the ring gear 522 on the outer wall of the cylinder 521, thereby driving the cylinder 521 to rotate. The rotation of the cylinder 521 realizes the screening of the internal powder. The qualified powder passes through the filter screen 524 on the cylinder 521, falls into the outer shell 1, and is finally discharged from the discharge hopper 9; the unqualified powder is intercepted in the cylinder 521 by the filter screen 524, and accumulates in the storage box 523 as the cylinder 521 rotates. When the storage box 523 rotates to the highest point, the internal powder falls off under the action of gravity, and then re-enters the grinding cylinder 2 along the feed slot at the top of the grinding cylinder 2 for grinding.

[0093] The gear ring 522 on the cylinder 521 is meshed with the fourth transmission gear 533 and the fifth transmission gear 535 to drive the first round rod 531 and the second round rod 534 to rotate. The rotation of the second round rod 534 drives the rubber striking bar 536 to rotate, and uses inertia to shake off the powder adhered to the cylinder 521 and the filter 524; the rotation of the first round rod 531 drives the brush roller 532 to rotate. During the rotation of the brush roller 532, the bristles of the brush roller 532 can extend into the sieve holes of the filter 524 to clean the filter 524 and prevent the filter 524 from being blocked, thereby ensuring the screening effect and efficiency;

[0094] Before grinding, the coolant is pumped in through the infusion pipe 408, enters the inner tube 401 through the infusion pipe 408, and then flows into the cavity 33 on the grinding seat 32 through multiple inlet pipes 403. The coolant cools the grinding seat 32 to reduce its surface temperature, prevents the grinding seat 32 from being too hot due to long-term grinding, and effectively prevents the rice noodles from sticking or burning due to high temperature, while reducing energy consumption and environmental impact; the used coolant flows back to the outer tube 402 through the outlet pipe 404, then flows from the outer tube 402 into the first hollow ring 405, and is finally discharged from the drain pipe 406, forming a cycle to ensure the continuous flow of the coolant and achieve continuous cooling.

[0095] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. An automatic grinding device, characterized in that: include Housing (1); A grinding cylinder (2), the grinding cylinder (2) being fixedly mounted inside the housing (1), the upper end of the grinding cylinder (2) being provided with a feed trough, and the lower end of the grinding cylinder (2) being provided with discharge holes evenly distributed; A grinding component (3), wherein the grinding component (3) is arranged inside the grinding cylinder (2) and cooperates with the grinding cylinder (2) to grind the raw material; A cooling mechanism (4), wherein the cooling mechanism (4) is arranged on the grinding assembly (3) and is used to cool the grinding assembly (3); A screening mechanism (5), the screening mechanism (5) is also arranged in the housing (1) and located outside the grinding cylinder (2), and is used to screen the ground powder; A driving unit (6), the driving unit (6) being arranged below the housing (1) and used for driving the device to operate; The screening mechanism (5) comprises a linkage part (51), the linkage part (51) being arranged at the lower end of the inner cavity of the housing (1), a filter part (52) being rotatably mounted in the housing (1) for screening the ground powder, a cleaning part (53) being arranged at the upper end of the filter part (52), and the driving part (6) driving the grinding assembly (3) to rotate when in operation, and driving the filter part (52) to rotate via the linkage part (51); The grinding assembly (3) comprises a hollow disk (31), the hollow disk (31) being arranged in the grinding cylinder (2), and the hollow disk (31) being provided with through grooves distributed in an annular manner, the outer wall of the hollow disk (31) being provided with a grinding seat (32) distributed in an annular manner, and the grinding seat (32) being provided with a cavity (33); The filter portion (52) comprises a cylinder (521), the cylinder (521) being rotatably mounted in the housing (1), a gear ring (522) being fixedly mounted on the outer ring of the cylinder (521), a material storage box (523) being arranged in an annular pattern on the inner ring of the cylinder (521), mounting grooves being arranged in an annular pattern on the cylinder (521), and a filter screen (524) being arranged in the mounting groove; The cleaning portion (53) comprises a first round rod (531) and a second round rod (534); the first round rod (531) and the second round rod (534) are both rotatably connected to the housing (1); a brush roller (532) is fixedly sleeved on the first round rod (531); fourth transmission gears (533) are fixedly mounted on both ends of the first round rod (531); fifth transmission gears (535) are fixedly mounted on both ends of the second round rod (534); striking bars (536) are connected to the second round rod (534) in an array arrangement; and the striking bars (536) are made of rubber.

2. The automatic grinding device according to claim 1, characterized in that: A support seat (7) is provided at the lower end of the housing (1), and a shock-absorbing pad is provided at the lower end of the support seat (7), and anti-slip grooves are provided on the bottom surface of the shock-absorbing pad. A feed hopper (8) is detachably mounted on the front side of the housing (1) by means of bolts, and one end of the feed hopper (8) located inside the housing (1) is circular and extends into the hollow disk (31). A discharge hopper (9) is connected to the lower end of the housing (1).

3. The automatic grinding device according to claim 2, characterized in that: The cooling mechanism (4) comprises an inner tube (401) and an outer tube (402); the inner tube (401) is arranged in the outer tube (402), and one end of the inner tube (401) and the outer tube (402) are fixedly connected; the outer tube (402) is rotatably connected to the outer shell (1); a liquid inlet pipe (403) is arranged in an annular manner on the inner tube (401), and the liquid inlet pipe (403) extends to the outside of the outer tube (402) and is connected to the cavity (33); a liquid outlet pipe (404) is arranged in an annular manner on the outer tube (402), and the liquid outlet pipe (404) is also arranged in an annular manner. The outer tube (402) is connected to the cavity (33); one end of the outer tube (402) is rotatably connected to a first hollow ring (405) via a sealing bearing; the first hollow ring (405) is connected to a liquid discharge tube (406); one end of the inner tube (401) is rotatably connected to a second hollow ring (407) via a sealing bearing; the first hollow ring (405) and the second hollow ring (407) are both fixedly connected to the outer shell (1) by a bracket; the second hollow ring (407) is connected to a liquid infusion tube (408); and a first transmission gear (409) is mounted on the outer wall of the outer tube (402).

4. The automatic grinding device according to claim 1, characterized in that: The linkage part (51) comprises a rotating rod (511), the rotating rod (511) being rotatably connected to the outer shell (1), and one end of the rotating rod (511) extending to the outside of the outer shell (1), the end of the rotating rod (511) located inside the outer shell (1) being mounted with a second transmission gear (512), and the end of the rotating rod (511) located outside the outer shell (1) being mounted with a third transmission gear (513).

5. The automatic grinding device according to claim 1, characterized in that: The driving part (6) comprises a driving motor (601), the driving motor (601) is mounted on a supporting seat (7), and a driving gear (602) is mounted on an output shaft of the driving motor (601).

6. The automatic grinding device according to claim 3, characterized in that: The liquid inlet pipe (403) and the liquid outlet pipe (404) are both made of steel pipes, and the outer pipe (402) is fixedly connected to the hollow disk (31) by means of the liquid inlet pipe (403) and the liquid outlet pipe (404).

7. A rice flour grinding process, characterized in that: An automatic grinding device according to any one of claims 1 to 6, comprising the following steps: Step 1: Pour the raw material to be ground into the equipment through the feed hopper (8), and the raw material then falls into the hollow plate (31), and is discharged through the through groove on the hollow plate (31) and enters the grinding cylinder (2); Step 2: starting the driving motor (601) to drive the grinding assembly (3) to rotate for grinding and to rotate the rotating rod (511); Step 3: the ground powder falls into the cylinder (521) through the discharge hole at the bottom of the grinding cylinder (2), the rotation of the rotating rod (511) drives the second transmission gear (512) to rotate, the second transmission gear (512) meshes with the gear ring (522) on the outer wall of the cylinder (521), and then drives the cylinder (521) to rotate. The rotation of the cylinder (521) realizes the screening of the internal powder, and the qualified powder passes through the filter screen (524) on the cylinder (521), falls into the outer shell (1), and is finally discharged from the discharge hopper (9); Step 4: Unqualified powder is intercepted by the filter screen (524) in the cylinder (521), and as the cylinder (521) rotates, the powder re-enters the grinding cylinder (2) for grinding; Step 5: During grinding, coolant is pumped into the grinding seat (32) to cool it down, thereby lowering its surface temperature and preventing the grinding seat (32) from overheating due to prolonged grinding; Step 6: The gear ring (522) on the cylinder (521) is also meshed with the fourth transmission gear (533) and the fifth transmission gear (535) to drive the first round rod (531) and the second round rod (534) to rotate. The rotation of the second round rod (534) drives the rubber striking bar (536) to rotate. At the same time, the rotation of the first round rod (531) drives the brush roller (532) to rotate.

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