Automatic feeding device for rice mill

Abstract

The utility model discloses a rice mill automatic feeding equipment, including the bottom plate, the bottom plate upper surface is fixed with the mill body and the storage hopper, the mill body inlet is fixed with the feeding hopper, the storage hopper bottom is fixed with the vertical box, the bottom plate upper surface and be located vertical box below fixed with the hoist hopper, the hoist hopper inside installation has the standpipe, and the standpipe inside installation has rotatable auger. In the utility model, set up the mill body, the feeding hopper, the storage hopper, the vertical box, the hoist hopper, the standpipe, the auger, the driving motor, the fan housing, the fan and the screen plate, and the rice pours into the storage hopper and falls along the vertical box, in this process, utilize the fan to the fan housing and blow, and the particle impurity in the rice is blown from one side of the screen plate, and the sieved rice enters the hoist hopper inside, and then the rice is lifted to the feeding hopper of the mill body through the auger, and the feeding is more stable and the screening efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to an automatic feeding device for a rice milling machine. Background Technology

[0002] A rice milling machine is a specialized piece of machinery used to process paddy into rice, widely used in the grain processing industry. Its core function is to remove the outer husk and bran layer of paddy through physical methods, ultimately producing polished white rice. This equipment typically consists of a feeding device, a hulling mechanism, a milling chamber, a separation system, and a power transmission system. The paddy is first hulled by the hulling mechanism to form brown rice, then enters the milling chamber. Under the interaction of high-speed rotating sand rollers or iron rollers and rice sieves, the bran and germ on the surface of the rice grains are removed through friction and shearing force, achieving fine milling.

[0003] A search revealed that patent CN222131997U discloses an automatic feeding device for a rice mill. This device uses a vibrating platform to spread and move the rice to one side. During vibration and movement, dust and fine impurities inside the rice pass through filter holes and are stored in a waste bin, effectively removing impurities. However, this device has the following drawbacks: due to the inclined design of the conveying mechanism, the rice tends to slide downwards when falling from the screening mechanism surface onto the conveying mechanism surface, resulting in unstable feeding. Secondly, the vibrating screening causes the speed at which the rice moves on the vibrating platform surface to be uncontrollable, making the feeding speed and quantity uncontrollable and unable to match the mill's processing speed. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an automatic feeding device for rice milling machines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic feeding device for a rice milling machine, comprising a base plate, a milling machine body and a storage hopper fixed on the upper surface of the base plate, a feeding hopper fixed at the inlet of the milling machine body, a vertical box fixed at the bottom of the storage hopper, an lifting hopper fixed on the upper surface of the base plate and below the vertical box, a vertical pipe installed inside the lifting hopper, a rotatable auger installed inside the vertical pipe, a discharge port provided at the top of the vertical pipe and located above the feeding hopper, a rotatable material distribution component installed at the top of the vertical box, and a reduction motor for driving the material distribution component to rotate installed on the outer wall of the storage hopper, an air inlet and an air outlet respectively opened on both sides of the vertical box, a wind hood fixed at the air inlet, a fan installed on the upper surface of the base plate, and an air duct connected between the fan and the wind hood, and a screen plate fixed on the outer surface of the vertical box near the air outlet.

[0006] Furthermore, the material distribution assembly includes a horizontal shaft located inside the vertical box, which is rotatably connected to the side wall of the vertical box via bearings. A material distribution roller is fixed on the surface of the horizontal shaft, and the surface of the material distribution roller is provided with multiple grooves.

[0007] Furthermore, one end of the horizontal shaft is located outside the vertical box and is fixedly connected to the output end of the geared motor.

[0008] Furthermore, two symmetrical guide bosses are provided inside the vertical box and above the distributing roller, and the guide bosses are located below the storage hopper.

[0009] Furthermore, a drive motor is fixed at the top of the vertical tube, the bottom output shaft of the drive motor is fixedly connected to the auger, and a feed inlet is opened at the bottom of the vertical tube.

[0010] Furthermore, an L-shaped plate is fixed to the outer wall of the vertical box and below the air outlet. The bottom end of the screen plate is located inside the L-shaped plate. A pressing bolt is threaded through the middle of the L-shaped plate and rotatedly connected to it. One end of the pressing bolt inside the L-shaped plate is in contact with the surface of the screen plate.

[0011] The beneficial effects of this utility model are:

[0012] 1. In use, this utility model is an automatic feeding device for a rice mill, which includes a mill body, a feeding hopper, a storage hopper, a vertical box, a lifting hopper, a vertical pipe, an auger, a drive motor, a fan, a blower, and a screen plate. After the rice is poured into the storage hopper, it falls down along the vertical box. During this process, the blower blows air into the fan hopper, blowing out particulate impurities in the rice from one side of the screen plate. The screened rice enters the lifting hopper and is then lifted by the auger to the feeding hopper of the mill body. The feeding is more stable and the screening efficiency is higher.

[0013] 2. When in use, this utility model is an automatic feeding device for rice milling machines, which is equipped with a vertical box, a material distribution component and a reduction motor. The reduction motor drives the material distribution component to rotate inside the vertical box, and the material distribution component slowly discharges the rice inside the storage hopper into the vertical box, so that the feeding speed of rice is controllable. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 : Overall schematic diagram of this utility model;

[0016] Figure 2Partial perspective view of this utility model;

[0017] Figure 3 The present utility model Figure 1 Enlarged view of point A in the middle.

[0018] The attached figures are labeled as follows:

[0019] 1. Base plate; 2. Mill body; 3. Feed hopper; 4. Storage hopper; 5. Vertical box; 6. Lifting hopper; 7. Vertical pipe; 8. Screw; 9. Drive motor; 10. Material distribution assembly; 101. Horizontal shaft; 102. Material distribution roller; 103. Groove; 11. Guide boss; 12. Gear motor; 13. Air cover; 14. Fan; 15. Air outlet; 16. Screen plate; 17. L-shaped plate; 18. Extrusion bolt. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-3 As shown, an automatic feeding device for a rice milling machine is disclosed, comprising a base plate 1, a milling machine body 2 and a storage hopper 4 fixed on the upper surface of the base plate 1, a feed hopper 3 fixed at the feed inlet of the milling machine body 2, a vertical box 5 fixed at the bottom of the storage hopper 4, an lifting hopper 6 fixed on the upper surface of the base plate 1 and below the vertical box 5, a vertical pipe 7 installed inside the lifting hopper 6, and a rotatable auger 8 installed inside the vertical pipe 7, a discharge port provided at the top of the vertical pipe 7 and located above the feed hopper 3, a rotatable material distribution component 10 installed at the top of the vertical box 5, and a reduction motor 12 for driving the material distribution component 10 to rotate installed on the outer wall of the storage hopper 4, an air inlet and an air outlet 15 respectively opened on both sides of the vertical box 5, a wind hood 13 fixed at the air inlet, a fan 14 installed on the upper surface of the base plate 1, and an air duct connected between the fan 14 and the wind hood 13, and a screen plate 16 fixed on the outer surface of the vertical box 5 near the air outlet 15.

[0022] In this embodiment, the mill body 2 adopts existing technology, and its specific model is not limited. The working principle and structure will not be described in detail.

[0023] The material distribution assembly 10 includes a horizontal shaft 101 located inside the vertical box 5. The horizontal shaft 101 is rotatably connected to the side wall of the vertical box 5 via bearings. A material distribution roller 102 is fixed on the surface of the horizontal shaft 101, and a plurality of grooves 103 are formed on the surface of the material distribution roller 102.

[0024] In this embodiment, the diameter of the distributing roller 102 matches the width of the vertical box 5. The non-groove portion of the distributing roller 102 is in contact with the inner wall of the vertical box 5. When the horizontal shaft 101 drives the distributing roller 102 to rotate, the rice inside the storage hopper 4 can fall into the groove 103 above the distributing roller 102. As the distributing roller 102 rotates, when the groove 103 rotates to the bottom, the rice in the groove 103 can fall into the vertical box 5. By controlling the rotation speed of the horizontal shaft 101, the rice discharge speed is achieved.

[0025] One end of the horizontal shaft 101 is located outside the vertical box 5 and is fixedly connected to the output end of the geared motor 12.

[0026] In this embodiment, the geared motor 12 is a Panasonic MHMF series geared motor with a planetary gearbox, which enables the geared motor 12 to drive the horizontal shaft 101 to rotate slowly. By adjusting the speed of the geared motor 12, the feeding speed can be controlled.

[0027] Inside the vertical box 5 and above the distributing roller 102, there are two symmetrical guide bosses 11, and the guide bosses 11 are located below the storage hopper 4.

[0028] The guide boss 11 is provided so that the rice inside the storage hopper 4 can smoothly enter the groove 103 on the surface of the distributing roller 102 along the guide boss 11.

[0029] A drive motor 9 is fixed at the top of the vertical tube 7, and the output shaft at the bottom of the drive motor 9 is fixedly connected to the auger 8. An inlet is opened at the bottom of the vertical tube 7.

[0030] After the drive motor 9 drives the auger 8 to rotate, the rice inside the lifting hopper 6 enters the vertical pipe 7 from the feed port. The auger 8 lifts the rice along the vertical pipe 7, so that the rice is discharged from the discharge port at the top of the vertical pipe 7 and enters the feed hopper 3.

[0031] An L-shaped plate 17 is fixed on the outer wall of the vertical box 5 and below the air outlet 15. The bottom end of the screen plate 16 is located inside the L-shaped plate 17. A compression bolt 18 is connected through the middle of the L-shaped plate 17 by a threaded rotation. One end of the compression bolt 18 located inside the L-shaped plate 17 is in contact with the surface of the screen plate 16.

[0032] When installing the screen plate 16, insert the screen plate 16 into the L-shaped plate 17 so that the screen plate 16 blocks the air outlet 15, and then tighten the compression bolts 18 to compress and fix the screen plate 16.

[0033] Working principle: When in use, start the mill body 2, drive motor 9, blower 14 and reduction motor 12, and then pour rice into the storage hopper 4. As the reduction motor 12 drives the distribution roller 102 to rotate, the grooves 103 on the surface of the distribution roller 102 discharge the rice into the vertical box 5. During the process of the rice falling inside the vertical box 5, the blower 14 blows air into the air hood 13. After the air enters the vertical box 5, it blows out the granular impurities in the rice from the air outlet 15. The screen plate 16 blocks the rice, and the rice then falls into the lifting hopper 6. As the drive motor 9 drives the auger 8 to rotate, it lifts the rice to the discharge port of the vertical pipe 7. After being discharged from the discharge port, it enters the feeding hopper 3.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic feeding device for a rice milling machine, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixed with a mill body (2) and a storage hopper (4). A feed hopper (3) is fixed at the feed inlet of the mill body (2). A vertical box (5) is fixed at the bottom of the storage hopper (4). A lifting hopper (6) is fixed on the upper surface of the base plate (1) and below the vertical box (5). A vertical pipe (7) is installed inside the lifting hopper (6), and a rotatable auger (8) is installed inside the vertical pipe (7). A discharge port is provided at the top of the vertical pipe (7), and the discharge port is located above the feed hopper (3). A rotatable material distribution component (10) is installed at the top inside the box (5), and a geared motor (12) for driving the material distribution component (10) to rotate is installed on the outer wall of the storage hopper (4). An air inlet and an air outlet (15) are respectively opened on both sides of the vertical box (5). A wind cover (13) is fixed at the air inlet. A fan (14) is installed on the upper surface of the bottom plate (1), and a duct is connected between the fan (14) and the wind cover (13). A screen plate (16) is fixed on the outer surface of the vertical box (5) near the air outlet (15).

2. The automatic feeding device for a rice milling machine according to claim 1, characterized in that: The material distribution assembly (10) includes a horizontal shaft (101) located inside the vertical box (5). The horizontal shaft (101) is rotatably connected to the side wall of the vertical box (5) through a bearing. A material distribution roller (102) is fixed on the surface of the horizontal shaft (101). The surface of the material distribution roller (102) is provided with a plurality of grooves (103).

3. The automatic feeding device for a rice milling machine according to claim 2, characterized in that: One end of the horizontal shaft (101) is located outside the vertical box (5) and is fixedly connected to the output end of the geared motor (12).

4. The automatic feeding device for a rice milling machine according to claim 2, characterized in that: The vertical box (5) is provided with two symmetrical guide bosses (11) inside and above the material distribution roller (102), and the guide bosses (11) are located below the storage hopper (4).

5. The automatic feeding device for a rice milling machine according to claim 1, characterized in that: The top of the vertical tube (7) is fixed with a drive motor (9), the bottom output shaft of the drive motor (9) is fixedly connected to the auger (8), and the bottom of the vertical tube (7) is provided with a feed inlet.

6. The automatic feeding device for a rice milling machine according to claim 1, characterized in that: An L-shaped plate (17) is fixed on the outer wall of the vertical box (5) and below the air outlet (15). The bottom end of the screen plate (16) is located inside the L-shaped plate (17). A pressing bolt (18) is threaded through the middle of the L-shaped plate (17) and rotatedly connected by a thread. One end of the pressing bolt (18) inside the L-shaped plate (17) is in contact with the surface of the screen plate (16).

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