Efficient rice polishing machine

Abstract

The utility model relates to the technical field of rice production, in particular to an efficient rice polishing machine, and aims to solve the technical problems that rice bran powder is easy to adhere to the surface of a polishing roller, needs to be cleaned at set intervals and is not easy to collect. The upper portion of the polishing barrel is tangentially communicated with a plurality of air inlet pipes, the air inlet pipes are obliquely arranged towards the discharging end of the polishing barrel from top to bottom, each air inlet pipe is communicated with a fan, the inner wall of the polishing barrel is connected with grinding materials, and an impurity discharging opening is formed in the portion, on the lower portion of the polishing barrel, of the side wall of the polishing shell. Under the action of inclined air outlet of the multiple tangential air inlet pipes of the polishing barrel, rice spirally moves towards the discharging end in the polishing barrel and makes full contact with grinding materials in the moving process to be polished, and rice bran powder and rice hulls penetrate through polishing barrel holes to move to the lower portion of the polishing shell and are discharged along with air through the polishing shell.

Description

Technical Field

[0001] This utility model relates to the field of rice production technology, specifically to a high-efficiency rice polishing machine. Background Technology

[0002] During rice processing, after hulling and milling, some bran, broken rice, and uneven parts remain on the surface of the rice grains. These residues and rough surfaces not only affect the appearance of the rice but also reduce its storage stability. For example, residual bran contains a lot of fat, which is prone to oxidation and rancidity, shortening the rice's shelf life. As people's living standards improve, consumers have increasingly higher demands for rice quality. Rice with a crystal-clear appearance and plump grains is more popular in the market. The emergence of high-efficiency rice polishing machines is precisely to meet this market demand. They can make the rice surface smoother, the color brighter, and enhance the commercial value of the rice.

[0003] In existing polishing machines, components such as polishing rollers and polishing cloths rub against the surface of the rice to remove surface bran, impurities, and uneven areas, resulting in a smooth surface. For example, in a horizontal polishing machine, the rice moves horizontally within the horizontally placed polishing chamber, continuously rubbing against the polishing rollers to achieve a polishing effect.

[0004] However, because bran powder easily adheres to the surface of the polishing roller, it needs to be cleaned every once in a while, and the bran powder is not easy to collect. Utility Model Content

[0005] This invention addresses the technical problem that rice bran powder easily adheres to the surface of the polishing roller, requiring cleaning periodically and making collection difficult, by providing a high-efficiency rice polishing machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency rice polishing machine, comprising: a feeding cylinder, which is connected to a horizontally placed polishing cylinder, the polishing cylinder having holes with a hole diameter smaller than the rice grain size, the polishing cylinder being connected to a polishing shell, the upper part of the polishing cylinder being tangentially connected to multiple air inlet pipes, the air inlet pipes being inclined from top to bottom towards the discharge end of the polishing cylinder, each air inlet pipe being connected to a fan, the inner wall of the polishing cylinder being connected to abrasive, and the lower part of the polishing shell having a waste discharge port on its side wall.

[0007] Preferably, all air inlet pipes are connected to the air duct, and the fan is connected to the air inlet pipe through the air duct.

[0008] Preferably, a guide arc plate is connected to the inner wall of the polishing shell at the lower part of the polishing cylinder. The guide arc plate is inclined, and a waste discharge port is opened at the lower part of the polishing shell at the inclined end of the guide arc plate.

[0009] Preferably, the inner wall of the polishing cylinder is connected to a spiral blade, and the air inlet pipe is connected between each spiral blade.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] Rice is fed into the polishing cylinder through the feeding cylinder. Under the action of the multiple tangential air inlets and inclined air outlets of the polishing cylinder, the rice moves spirally towards the discharge end inside the polishing cylinder. During the movement, it comes into full contact with the abrasive to polish the rice. The bran powder and rice husks pass through the polishing cylinder holes and move to the lower part of the polishing shell. They are then discharged by the air through the polishing shell. There is no need for polishing rollers to polish the rice, thus avoiding the problem of bran powder adhering to the surface of the polishing rollers.

[0012] Adding spiral blades prevents rice from being discharged due to insufficient friction time with the inner wall of the polishing cylinder, thus making the polishing more thorough. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic cross-sectional view of the structure of this utility model.

[0015] In the diagram: 1. Feeding cylinder; 2. Polishing cylinder; 3. Polishing shell; 4. Air inlet pipe; 5. Abrasive; 6. Air duct; 7. Air pipe; 8. Guide arc plate; 9. Waste discharge port; 10. Spiral blade. Detailed Implementation

[0016] 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.

[0017] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0018] The present invention will now be described in detail with reference to the accompanying drawings. Example

[0019] The following is in conjunction with the appendix Figure 1-2This embodiment describes a high-efficiency rice polishing machine, comprising: a feeding cylinder 1, which is connected to a horizontally placed polishing cylinder 2. The polishing cylinder 2 has holes with a diameter smaller than the average grain size of rice. The polishing cylinder 2 is connected to a polishing shell 3. Multiple air inlet pipes 4 are tangentially connected to the upper part of the polishing cylinder 2. The air inlet pipes 4 are inclined from top to bottom towards the discharge end of the polishing cylinder 2. Each air inlet pipe 4 is connected to a fan. Abrasive material 5 is connected to the inner wall of the polishing cylinder 2. A waste discharge port is opened on the side wall of the polishing shell 3 at the lower part of the polishing cylinder 2.

[0020] Rice is injected into polishing cylinder 2 through feeding cylinder 1. The fan connected to air inlet pipe 4 is turned on. Under the action of the multiple air inlet pipes 4 tangentially oriented to the polishing cylinder 2, the rice moves spirally towards the discharge end inside the polishing cylinder 2. During the movement, the rice comes into full contact with the abrasive 5 to polish the rice. Bran powder and rice husks pass through the holes of polishing cylinder 2 and move to the lower part of polishing outer shell 3. They are discharged with the wind through the discharge port at the lower part of polishing outer shell 3. This solves the technical problem that bran powder is easy to adhere to the surface of the polishing roller and part, which requires cleaning every once in a while, and that bran powder is not easy to collect.

[0021] All air inlet pipes 4 are connected to the bottom wall of the air duct 6, and the fan is connected to the side wall of the air duct 6 through the air duct 7.

[0022] A single high-power fan injects air into the air duct 6 through the air duct 7, and the air then enters the air inlet pipe 4 from the air duct 6 to complete the air outlet. The air duct 7 and the air inlet pipe 4 are not set opposite each other, and the air duct 7 is connected to the middle of the air duct 6, so that the air outlet of each air inlet pipe 4 is uniform.

[0023] The inner wall of the polishing shell 3 at the lower part of the polishing cylinder 2 is connected to a guide arc plate 8. The guide arc plate 8 is set at an angle, and a waste discharge port 9 is opened at the lower part of the polishing shell 3 at the angled end of the guide arc plate 8.

[0024] Rice bran and rice husks fall onto the guide plate 8 and are discharged through the discharge port 9 under the influence of the wind, along the inclined surface of the guide plate 8.

[0025] The inner wall of the polishing cylinder 2 is connected to a spiral blade 10, and the air inlet pipe 4 is connected between each spiral blade 10.

[0026] Adding a spiral blade 10 prevents rice from being discharged due to insufficient friction time between the rice and the inner wall of the polishing cylinder 2.

[0027] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0029] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency rice polishing machine, comprising: The material feeding cylinder (1) is connected to the horizontally placed polishing cylinder (2). The polishing cylinder (2) has a hole. The hole diameter of the polishing cylinder (2) is smaller than the grain size of rice. The polishing cylinder (2) is connected to the polishing shell (3). The upper part of the polishing cylinder (2) is tangentially connected to multiple air inlet pipes (4). The air inlet pipes (4) are inclined from top to bottom towards the discharge end of the polishing cylinder (2). Each air inlet pipe (4) is connected to a blower. The inner wall of the polishing cylinder (2) is connected to abrasive (5). The side wall of the polishing shell (3) at the lower part of the polishing cylinder (2) has a waste discharge port.

2. The high-efficiency rice polishing machine according to claim 1, characterized in that: All air inlet pipes (4) are connected to the air duct (6), and the fan is connected to the air inlet pipe (4) through the air duct (7).

3. The high-efficiency rice polishing machine according to claim 1, characterized in that: The inner wall of the polishing shell (3) at the lower part of the polishing cylinder (2) is connected to a guide arc plate (8). The guide arc plate (8) is inclined. At the lower part of the polishing shell (3) at the inclined end of the guide arc plate (8), a waste discharge port (9) is opened.

4. The high-efficiency rice polishing machine according to claim 1, characterized in that: The inner wall of the polishing cylinder (2) is connected to a spiral blade (10), and the air inlet pipe (4) is connected between each spiral blade (10).

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