A rough rice combination distribution box of a rice mill

By installing anti-sticking and discharge mechanisms inside the brown rice feeding box of the rice milling machine, the problems of brown rice sticking and clogging are solved, achieving comprehensive cleaning and smooth discharge of brown rice, improving cleaning effect and equipment life, and ensuring brown rice quality.

CN224546950UActive Publication Date: 2026-07-24四川钭进科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
四川钭进科技有限公司
Filing Date
2025-07-23
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional rice milling machines suffer from problems such as stickiness and impurity accumulation in the brown rice dispensing box during use, which affects the accuracy and efficiency of dispensing. Furthermore, manual cleaning is not ideal, increasing costs and potentially damaging the equipment.

Method used

An anti-sticking mechanism is installed inside the feeding box. Airflow is sprayed from the top in four directions to form a three-dimensional blowing range. Combined with the discharge mechanism, it prevents brown rice from sticking and clogging. The anti-sticking mechanism consists of an air pump, an air supply pipe and an exhaust section. Combined with the discharge mechanism of the screw conveyor and the discharge valve pipe, it ensures that the brown rice is discharged smoothly.

Benefits of technology

It achieves a comprehensive and thorough cleaning of brown rice, preventing residue and spoilage, improving cleaning effectiveness, preventing blockages, extending equipment lifespan, and improving processing efficiency and brown rice quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224546950U_ABST
    Figure CN224546950U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of rough rice combined distribution box of rice mill, including distribution box ontology, holding hopper, discharge mechanism and anti-blocking mechanism, rough rice is poured into two holding hoppers in the top of distribution box ontology, control discharge valve pipe opening, the rotation of helical conveying paddle is driven by starting driver, the discharge of rough rice in holding hopper is realized, avoid rough rice discharge to occur jam, wherein discharge barrel inner wall is equipped with ceramic material coating, with wear resistance effect, part rough rice is adhered on the inner wall of holding hopper, starting air pump will external air be filtered by the filter of air inlet, into gas delivery pipe, gas delivery pipe two gas outlets are respectively connected in the main pipe in plate body, while multiple main pipes are communicated by rotary pipe, so that airflow is injected at airflow at the bottom of main pipe, wherein air nozzle is inclined setting, air outlet direction is towards the inner wall of holding hopper, can smoothly blow rough rice on the inner wall of holding hopper, and protective cover is equipped on the top of plate body, can protect ontology.
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Description

Technical Field

[0001] This utility model relates to the field of rice milling technology, specifically to a brown rice combination feeding box for a rice milling machine. Background Technology

[0002] After being processed by a rice milling machine, brown rice needs to be properly distributed through a dispensing box. However, traditional brown rice dispensing boxes in rice milling machines have many problems in practical applications. On the one hand, brown rice itself has a certain stickiness, and it may carry some impurities during processing. These impurities and some residual brown rice easily adhere to the inner wall of the rice hopper. Over time, this not only causes the effective volume of the rice hopper to gradually decrease, affecting the accuracy and efficiency of dispensing, but may also cause blockages, making the dispensing process difficult to carry out smoothly. In severe cases, it may even require stopping the machine for cleaning, greatly reducing the overall efficiency of rice milling.

[0003] Traditional cleaning methods rely heavily on manual labor, which is not only labor-intensive but also often ineffective, failing to thoroughly remove residues and impurities from the inner walls. Furthermore, manual cleaning incurs additional time and labor costs and may damage the internal structure of the machine, affecting its lifespan. Therefore, we need a new type of brown rice combining feeder for rice milling machines. Utility Model Content

[0004] The purpose of this utility model is to provide a combined brown rice dispensing box for a rice milling machine. An anti-sticking mechanism is installed on the top of the holding hopper, which can spray airflow from four directions on the top of the holding hopper to blow off the brown rice stuck to the inner wall of the holding hopper, preventing sticking. This mechanism can spray airflow from four directions on the top of the holding hopper to form a three-dimensional blowing range, covering the inner wall of the holding hopper without dead corners, and can blow off the stuck brown rice completely and thoroughly, avoiding residue, greatly improving the cleaning effectiveness, preventing residual brown rice from deteriorating and affecting the quality of the brown rice in subsequent processing, and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a brown rice combining dispensing box for a rice milling machine, comprising:

[0006] The material distribution box body consists of a main body, a holding hopper, a discharge mechanism, and an anti-sticking mechanism. The main body of the material distribution box has two holding hoppers on its top. The anti-sticking mechanism is located on the top of the holding hopper and is used to blow away brown rice that is stuck to the inner wall of the holding hopper. The discharge mechanism is installed at the bottom of the holding hopper and is used to discharge brown rice in the holding hopper without causing blockage.

[0007] The anti-adhesion mechanism includes an air pump, an air supply pipe, and an exhaust section. The air pump is fixed on the top of the material distribution box body, and a filter is provided at the air inlet end. The air pump exhaust end is connected to the air supply pipe, and both exhaust ends of the air supply pipe are connected to the exhaust section. The exhaust section is located on the top of the holding hopper.

[0008] Preferably, the exhaust section includes a plate, a main pipe, an air nozzle, and a rotary pipe. The top of the container is provided with four plates, and a main pipe is opened in the plate. The four plates are connected to each other through a rotary pipe. The main pipe is connected to the rotary pipe, and multiple air nozzles are connected to the bottom of the main pipe.

[0009] Preferably, the nozzle has a cavity that is wider at the top and narrower at the bottom, and the nozzle is tilted so that the air jet direction is towards the inner wall of the container.

[0010] Preferably, it also includes a protective cover, which is disposed on the top of the plate and has a sloping surface at the top, and the bottom of the protective cover is fixed to the top of the plate by a support plate.

[0011] Preferably, the discharge mechanism includes a discharge bucket, an anti-clogging component, and a discharge valve pipe. The discharge bucket is connected to the holding hopper. The anti-clogging component is installed inside the discharge bucket to smoothly discharge the brown rice from the holding hopper. The discharge valve pipe is installed at the bottom of the discharge bucket.

[0012] Preferably, the anti-clogging component includes a spiral conveyor and a driver, the driver is fixed to one side of the discharge hopper, and the spiral conveyor is installed at the output end, the spiral conveyor being located inside the discharge hopper.

[0013] Preferably, a reinforcing plate is rotatably mounted on one end of the spiral conveyor paddle, and the top of the reinforcing plate is fixed to the inner wall of the discharge hopper.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features an anti-sticking mechanism installed at the top of the container. This mechanism sprays air from four directions at the top of the container to blow off brown rice adhering to the inner wall of the container, preventing sticking. The airflow from the top of the container forms a three-dimensional blowing range, covering the inner wall of the container without any blind spots. This ensures that the sticky brown rice is blown off completely and thoroughly, avoiding residue and greatly improving the effectiveness of cleaning. It also prevents residual brown rice from spoiling and affecting the quality of the brown rice in subsequent processing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a three-dimensional rear view of the structure of this utility model;

[0018] Figure 3This is a three-dimensional sectional view of the anti-clogging component of this utility model;

[0019] Figure 4 This is a partial three-dimensional structural view of the present invention;

[0020] Figure 5 This is a perspective view of the exhaust section of this utility model.

[0021] In the diagram: 1. Material distribution box body; 2. Holding hopper; 3. Discharge mechanism; 31. Discharge bucket; 32. Anti-clogging component; 321. Screw conveyor; 322. Driver; 33. Discharge valve pipe; 4. Anti-adhesion mechanism; 41. Air pump; 42. Air supply pipe; 43. Exhaust section; 431. Plate; 432. Main pipe; 433. Air nozzle; 434. Rotary pipe; 5. Cavity; 6. Protective cover; 7. Support plate; 8. Reinforcing plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a brown rice combination dispensing box for a rice milling machine, comprising:

[0024] The material distribution box body 1, the holding hopper 2, the discharge mechanism 3 and the anti-sticking mechanism 4 are provided. The top of the material distribution box body 1 has two holding hoppers 2. The anti-sticking mechanism 4 is located at the top of the holding hopper 2 and is used to blow off the brown rice that sticks to the inner wall of the holding hopper 2. The discharge mechanism 3 is installed at the bottom of the holding hopper 2 and is used to discharge the brown rice in the holding hopper 2 in an anti-clogging manner.

[0025] The anti-adhesion mechanism 4 includes an air pump 41, an air supply pipe 42, and an exhaust section 43. The air pump 41 is fixed on the top of the material distribution box body 1. A filter is provided at the air inlet end. The exhaust end of the air pump 41 is connected to the air supply pipe 42. Both exhaust ends of the air supply pipe 42 are connected to the exhaust section 43. The exhaust section 43 is located on the top of the holding hopper 2.

[0026] Specifically, an anti-sticking mechanism 4 is installed on the top of the holding hopper 2. It can spray air from four directions on the top of the holding hopper 2 to blow off the brown rice stuck to the inner wall of the holding hopper 2 and prevent sticking. The mechanism can spray air from four directions on the top of the holding hopper 2 to form a three-dimensional blowing range, covering the inner wall of the holding hopper 2 without dead corners. It can blow off the stuck brown rice completely and thoroughly, avoid residue, greatly improve the cleaning effectiveness, and prevent the residual brown rice from deteriorating and affecting the quality of the brown rice in subsequent processing.

[0027] The exhaust section 43 includes a plate 431, a main pipe 432, an air nozzle 433, and a rotary pipe 434. The top of the container 2 is provided with four plates 431. The main pipe 432 is opened in the plate 431. The four plates 431 are connected by the rotary pipe 434. The main pipe 432 is connected to the rotary pipe 434. Multiple air nozzles 433 are connected to the bottom of the main pipe 432.

[0028] Furthermore, the four plates 431 are fixed to the four edges of the top of the holding hopper 2, and the rotating pipe 434 is annular and surrounds the top of the holding hopper 2. The connection between the rotating pipe 434 and the main pipe 432 inside each plate 431 is sealed by welding to ensure that there is no leakage during airflow transmission. In actual operation, the airflow generated by the air pump 41 enters the main pipe 432 through the air delivery pipe 42 and can be quickly and evenly distributed to each main pipe 432 through the rotating pipe 434, ensuring that the airflow pressure sprayed from the top of the holding hopper 2 is balanced in four directions. This effectively solves the problem that brown rice in some areas is difficult to blow off due to uneven airflow, and comprehensively improves the cleaning effect of brown rice on the inner wall of the holding hopper 2.

[0029] The nozzle 433 has a cavity 5 that is wider at the top and narrower at the bottom. The nozzle 433 is tilted and the air jet direction is towards the inner wall of the container 2.

[0030] It is worth noting that the air nozzle 433 has a cavity structure that is wider at the top and narrower at the bottom. This structure can accelerate and focus the airflow. The air nozzle 433 is tilted, with an tilt angle between 30° and 60°, preferably 45°, and the jet direction is precisely directed towards the inner wall of the holding container 2. When the airflow is ejected from the air nozzle 433, the accelerated airflow can act on the brown rice adhering to the inner wall of the holding container 2 with a greater impact force. Compared with vertical jetting, tilted jetting can better utilize the tangential force of the airflow to blow the brown rice off more efficiently, solving the problem of insufficient impact force and incomplete cleaning of brown rice when using vertical jetting, and greatly improving the working efficiency of the anti-adhesion mechanism 4.

[0031] It also includes a protective cover 6, which is set on the top of the plate 431 and has a sloping part on the top. The bottom of the protective cover 6 is fixed to the top of the plate 431 by a support plate 7.

[0032] It should be noted that the protective cover 6 is made of stainless steel, which has good rust and corrosion resistance. The slope of the top of the protective cover 6 is 15°-30°, which can effectively prevent debris from accumulating on the protective cover 6. The top of the support plate 7 is welded to the bottom of the protective cover 6, and the bottom is welded to the top of the plate 431. This stable connection method allows the protective cover 6 to be stably installed on the top of the plate 431. While ensuring the protection of the plate 431, main pipe 432 and other components in the anti-adhesion mechanism 4, it will not be easily displaced or damaged by external collisions or vibrations, thus extending the service life of the anti-adhesion mechanism 4 and ensuring its long-term stable operation.

[0033] The discharge mechanism 3 includes a discharge bucket 31, an anti-blocking component 32, and a discharge valve pipe 33. The discharge bucket 31 is connected to the holding hopper 2. The anti-blocking component 32 is installed inside the discharge bucket 31 to smoothly discharge the brown rice in the holding hopper 2. The discharge valve pipe 33 is installed at the bottom of the discharge bucket 31.

[0034] Specifically, the discharge hopper 31 and the holding hopper 2 are sealed together by welding to prevent leakage of brown rice during the discharge process. The inner diameter of the discharge hopper 31 is slightly smaller than the bottom inner diameter of the holding hopper 2, allowing the brown rice to naturally collect in the discharge hopper 31 under gravity. An anti-clogging component 32 is installed inside the discharge hopper 31 near the holding hopper 2. Its installation method is as follows: the driver 322 is bolted to the outer wall of the discharge hopper 31, and its output shaft passes through the side wall of the discharge hopper 31 and is fixedly connected to one end of the screw conveyor 321, ensuring that the driver 322 can stably drive the screw conveyor 321 to rotate. The discharge valve pipe 33 is installed at the bottom of the discharge hopper 31, and its connection to the discharge hopper 31 is a threaded connection, facilitating disassembly and maintenance. This discharge mechanism 3 works in concert to effectively solve the clogging problem caused by the accumulation and adhesion of brown rice in the holding hopper 2, ensuring smooth discharge of brown rice and improving the working efficiency of the dispensing box.

[0035] The anti-clogging component 32 includes a screw conveyor 321 and a driver 322. The driver 322 is fixed on one side of the discharge hopper 31, and the screw conveyor 321 is installed at the output end. The screw conveyor 321 is located inside the discharge hopper 31.

[0036] Furthermore, the screw conveyor 321 is made of high-strength aluminum alloy, featuring light weight, high strength, and wear resistance. The pitch of the screw conveyor 321 is designed according to the flow rate and discharge speed of the brown rice in the holding hopper 2, generally between 50mm and 150mm, preferably 100mm. The driver 322 uses a geared motor, whose speed can be adjusted according to actual production needs via an external PLC controller, ranging from 50r / min to 200r / min. During operation, the geared motor drives the screw conveyor 321 to rotate at a suitable speed, uniformly and stably pushing the brown rice in the holding hopper 2 to the discharge valve pipe 33, avoiding blockages or poor discharge caused by excessively fast or slow pushing speeds, and further improving the reliability and stability of the discharge mechanism 3.

[0037] One end of the spiral conveyor 321 is rotatably mounted with a reinforcing plate 8, and the top of the reinforcing plate 8 is fixed to the inner wall of the discharge bucket 31.

[0038] The reinforcing plate 8 is made of stainless steel plate with a thickness of 3mm-5mm. Its shape fits the inner wall of the discharge bucket 31, and its top is fixed to the inner wall of the discharge bucket 31 by welding. One end of the spiral conveyor 321 is rotatably mounted on the reinforcing plate 8 through a bearing. The bearing is a deep groove ball bearing, which has good rotational accuracy and load-bearing capacity. The reinforcing plate 8 provides additional support for the spiral conveyor 321, making it stable during high-speed rotation and avoiding swaying and deviation caused by one end of the spiral conveyor 321 being suspended. It effectively solves the problem of deformation and damage that the spiral conveyor 321 is prone to during operation, extends its service life, and ensures the long-term stable operation of the discharge mechanism 3.

[0039] The driver 322, discharge valve pipe 33 and air pump 41 involved in this application are all implemented using existing mature technologies and are connected to an external PLC controller and power supply. This is a conventional technical means in this field, so their specific circuit connections, control logic and working process will not be described in detail.

[0040] The device pours brown rice into two holding hoppers 2 at the top of the main body 1 of the dispensing box. The discharge valve pipe 33 is opened, and the drive driver 322 drives the screw conveyor 321 to rotate, so as to discharge the brown rice in the holding hopper 2 and avoid blockage during discharge. The inner wall of the discharge hopper 31 is coated with a ceramic material, which has a wear-resistant effect. Some brown rice sticks to the inner wall of the holding hopper 2. The air pump 41 is started to filter the outside air through the filter of the air inlet and then enter the air supply pipe 42. The two air outlets of the air supply pipe 42 are respectively connected to the main pipe 432 in the plate 431. The multiple main pipes 432 are connected by the rotary pipe 434, so that the airflow is sprayed through the air nozzle 433 at the bottom of the main pipe 432. The air nozzle 433 is tilted and the air outlet is directed towards the inner wall of the holding hopper 2, which can effectively blow the brown rice off the inner wall of the holding hopper 2. A protective cover 6 is provided on the top of the plate 431 to protect the main body.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined brown rice dispensing box for a rice milling machine, characterized in that, include: The material distribution box body (1), the holding hopper (2), the discharge mechanism (3) and the anti-sticking mechanism (4) are provided. The material distribution box body (1) has two holding hoppers (2) on the top. The anti-sticking mechanism (4) is located on the top of the holding hopper (2) and is used to blow off the brown rice that sticks to the inner wall of the holding hopper (2). The discharge mechanism (3) is installed at the bottom of the holding hopper (2) and is used to discharge the brown rice in the holding hopper (2) in an anti-clogging manner. The anti-adhesion mechanism (4) includes an air pump (41), an air supply pipe (42), and an exhaust section (43). The air pump (41) is fixed on the top of the material distribution box body (1), and the air inlet is equipped with a filter. The exhaust end of the air pump (41) is connected to the air supply pipe (42), and both exhaust ends of the air supply pipe (42) are connected to the exhaust section (43). The exhaust section (43) is located on the top of the holding hopper (2).

2. The brown rice combined feeding box of a rice milling machine according to claim 1, characterized in that: The exhaust section (43) includes a plate (431), a main pipe (432), an air nozzle (433), and a rotary pipe (434). The top of the container (2) is provided with four plates (431), and a main pipe (432) is opened in the plate (431). The four plates (431) are connected to each other through the rotary pipe (434). The main pipe (432) is connected to the rotary pipe (434), and multiple air nozzles (433) are connected to the bottom of the main pipe (432).

3. The brown rice combined feeding box of a rice milling machine according to claim 2, characterized in that: The nozzle (433) has a cavity (5) that is wider at the top and narrower at the bottom. The nozzle (433) is tilted and the air jet direction is towards the inner wall of the container (2).

4. The brown rice combined feeding box of a rice milling machine according to claim 1, characterized in that: It also includes a protective cover (6), which is set on the top of the plate (431) and has a sloping part on the top. The bottom of the protective cover (6) is fixed to the top of the plate (431) by a support plate (7).

5. The brown rice combined feeding box of a rice milling machine according to claim 1, characterized in that: The discharge mechanism (3) includes a discharge bucket (31), an anti-blocking component (32), and a discharge valve pipe (33). The discharge bucket (31) is connected to the holding hopper (2). The anti-blocking component (32) is installed inside the discharge bucket (31) to smoothly discharge the brown rice in the holding hopper (2). The discharge valve pipe (33) is installed at the bottom of the discharge bucket (31).

6. The brown rice combined feeding box of a rice milling machine according to claim 5, characterized in that: The anti-clogging component (32) includes a spiral conveyor (321) and a driver (322). The driver (322) is fixed on one side of the discharge hopper (31), and the spiral conveyor (321) is installed at the output end. The spiral conveyor (321) is located inside the discharge hopper (31).

7. The brown rice combined feeding box of a rice milling machine according to claim 6, characterized in that: A reinforcing plate (8) is rotatably mounted on one end of the spiral conveyor (321), and the top of the reinforcing plate (8) is fixed to the inner wall of the discharge bucket (31).