Twisting disc for peeling and breaking grains

Abstract

The utility model discloses a rubbing plate for peeling and breaking grains, which comprises an inner rubbing plate and an outer rubbing plate, the inner rubbing plate is mounted on a rotating spindle, a grain feeding device is connected above the outer rubbing plate, the inner rubbing plate is conical, the outer rubbing plate is bowl-shaped, and peeling and breaking requirements of different types of grains are met by changing a gap between the inner rubbing plate and the outer rubbing plate. Two different tooth forms are distributed on the upper surface of the inner rubbing disc and comprise top large teeth and tail end small teeth, and the distribution density of the large teeth is smaller than that of the small teeth. When grains pass through the space between the outer rubbing disc and the inner rubbing disc, the grains can be strongly rubbed by the started outer rubbing disc and the inner rubbing disc, the grains are rubbed into a mixture with husks and kernels separated, the husking rate of the grains rubbed by the outer rubbing disc and the inner rubbing disc is high, and meanwhile, the outer rubbing disc is rotated, and the gaps of the rubbing discs are adjusted to adapt to husking operation of different grains. The device is simple in structure, reduces the flow of the traditional peeling process, and reduces the loss of the peeling process.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for grain processing, specifically a rubbing disc for peeling and breaking apart grains. Background Technology

[0002] Grain dehulling machines primarily process grains by using a hulling disc. Grains include sorghum, corn, millet, wheat, and other cereals, mainly belonging to the grass family (Poaceae). These grains are a traditional staple food for many Asian people, and they require further processing before consumption; the first step is grain dehulling.

[0003] The inventors discovered that the existing grain dehulling and grain-breaking equipment has an unreasonable grinding disc structure. Not only is the dehulling efficiency low, often requiring at least two dehulling processes to meet requirements, but the grinding disc also has a short operating time and poor wear resistance. This results in wasted time and high operating costs. Utility Model Content

[0004] The purpose of this invention is to provide a rubbing disc for peeling and breaking apart grains, which can reduce processing steps, reduce peeling energy consumption, extend service life, and improve peeling rate and product oil yield during the peeling process.

[0005] This utility model is achieved by the following technical solution: a rubbing disc for peeling and breaking apart grains, comprising an inner rubbing disc and an outer rubbing disc. The inner rubbing disc is mounted on a rotating main shaft, and a grain feeding device is connected above the outer rubbing disc. The inner rubbing disc is conical, and the outer rubbing disc is bowl-shaped. The requirements for peeling and breaking apart different types of grains can be met by changing the gap between the inner and outer rubbing discs.

[0006] By adopting the above technical solution, when the grain is fed in from above the outer rubbing disc, the inner rubbing disc rotates around the main shaft and cooperates with the outer rubbing disc located above it. Through the toothed structure of the inner and outer rubbing discs, the grain between them is repeatedly squeezed and pressed, and gradually transported to the surroundings, thereby discharging the separated grain and achieving the breaking and peeling of the grain.

[0007] Furthermore, the upper surface of the inner rubbing disc is distributed with two different tooth shapes: large teeth at the top and small teeth at the bottom. The distribution density of the large teeth is sparser than that of the small teeth.

[0008] By adopting the above technical solution, during the peeling process, the large teeth on the inner rubbing disc mainly act as material guides, evenly dispersing the material and ensuring full contact between the material and the tooth surface. The small teeth mainly act as peeling and breaking pieces, thereby reducing the breakage rate and increasing the peeling rate.

[0009] Furthermore, the angle between the inclined surface of the outer rubbing disc tooth distribution and the bottom surface is a fixed angle, while the angle between the inclined surface of the inner rubbing disc tooth distribution and the bottom surface is a variable value, with the angle at the end increasing.

[0010] By adopting the above technical solution, the material is ensured to be smoothly discharged from the rubbing plate after peeling and breaking, while avoiding repeated compression of the grain and reducing the breakage rate.

[0011] Furthermore, the teeth of the inner rubbing disc are distributed at a helical angle.

[0012] By adopting the above technical solution, it is easier for materials to flow downwards and discharge, thus improving the peeling efficiency.

[0013] In summary, this application has the following beneficial effects:

[0014] This invention provides a grain dehulling and kernel-breaking machine with a rubbing disc, comprising an outer rubbing disc and an inner rubbing disc. The inner rubbing disc is mounted on a rotating main shaft and rotates with it. The outer rubbing disc is mounted on a working chamber and positioned above the inner rubbing disc. The gap between the outer and inner rubbing discs allows grain to pass through. The outer rubbing disc has a feed inlet. The inner rubbing disc rotates with the rotating main shaft in a first direction. Compared to existing technologies, this invention adds an outer and inner rubbing disc. When the grain passes between the outer and inner rubbing discs, the activated outer and inner rubbing discs can vigorously rub the grain, separating the husk and kernel into a mixture. The grain rubbed by the outer and inner rubbing discs has a high dehulling rate. Furthermore, by rotating the outer rubbing disc, the gap between the rubbing discs can be adjusted to accommodate the dehulling of different grains. This invention has a simple structure, reduces the steps of traditional dehulling processes, and lowers losses during the dehulling process. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional structural schematic diagram of the rubbing disc in this application;

[0016] Figure 2 This is a first three-dimensional structural schematic diagram of the outer rubbing disc in this application;

[0017] Figure 3 This is a cross-sectional view of the outer rubbing disc in this application;

[0018] Figure 4 This is a first three-dimensional structural schematic diagram of the inner rubbing disc in this application;

[0019] Figure 5 This is a cross-sectional view of the inner rubbing disc in this application;

[0020] Explanation of reference numerals in the attached diagram: 1. Outer rubbing disc; 2. Inner rubbing disc; 11. Feed inlet; 12. Straight-lined tooth shape; 21. Top large tooth; 22. End small tooth; 23. Reinforcing rib. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be combined with the present invention.

[0022] The accompanying drawings in the embodiments provide a clear and complete description of the technical solutions in this embodiment.

[0023] Reference Figure 1 This embodiment provides a grain dehulling and kernel-breaking machine with a rubbing disc, including an outer rubbing disc 1 and an inner rubbing disc 2. The inner rubbing disc 2 rotates with the main shaft, and the outer rubbing disc 1 is positioned above the inner rubbing disc 2. The gap between the outer rubbing disc 1 and the inner rubbing disc 2 is used for grain passage. When the grain passes between the outer rubbing disc 1 and the inner rubbing disc 2, the outer rubbing disc 1 and the inner rubbing disc 2 can vigorously rub the grain, kneading it into a mixture in which the husk and kernel are separated. The grain with a high dehulling rate after being rubbed by the outer rubbing disc 1 and the inner rubbing disc 2 has a simple structure, reduces the process steps of traditional dehulling, and reduces the loss in the dehulling process.

[0024] Reference Figure 2 The outer grinding disc 1 has a feed inlet 11 above it. The material enters the grinding disc from directly above. This makes the material more evenly distributed in the gaps between the grinding discs, ensuring that the grains are subjected to more even force and the peeling process is more efficient.

[0025] Reference Figure 4 The inner rubbing disc has large top teeth 21, small end teeth 22, and reinforcing ribs 23. During the peeling process, the large top teeth 21 on the inner rubbing disc 2 mainly act as material guides, evenly dispersing the material and ensuring full contact between the material and the tooth surface. The small teeth mainly function to peel and break up the fragments, thereby reducing the breakage rate and increasing the peeling rate.

[0026] Reference Figure 2 , 4 The inner rubbing disc 2 has multiple small end teeth 22 arranged radially on the side facing the outer rubbing disc 1, and the outer rubbing disc 1 has multiple straight-lined teeth 12 arranged radially on the side facing the inner rubbing disc 2. Specifically, when the grain slides on the inner rubbing disc 2, it moves along the grooves between adjacent small end teeth 22 and between the straight-lined teeth 12. Furthermore, in this embodiment, the small end teeth 22 are curved, which slows down the grain as it moves within the curved grooves, allowing for thorough rubbing in the gap between the inner and outer rubbing discs 2 and 1, improving the efficiency of peeling and breaking apart. In addition, both the inner and outer rubbing discs 2 and 1 have a slope that gradually decreases in height from the axis to the edge. This design allows the grain to move between the inner and outer rubbing discs 2 and 1 using its own gravity. Simultaneously, the rotation of the inner rubbing disc 2 provides centrifugal force to the grain, accelerating it as it leaves the gap between the inner and outer rubbing discs 2 and 1, thus improving work efficiency.

Claims

1. A hulling disc for peeling and breaking apart grains, characterized in that: It includes an inner rubbing disc and an outer rubbing disc. The inner rubbing disc is mounted on a rotating main shaft, and a grain feeding device is connected above the outer rubbing disc. The inner rubbing disc is conical, and the outer rubbing disc is bowl-shaped. The gap between the inner and outer rubbing discs is changed to meet the requirements for peeling and breaking apart different types of grains. The inner and outer rubbing discs are covered with teeth.

2. A grain hulling and grain-breaking disc according to claim 1, characterized in that: The upper surface of the inner rubbing disc is distributed with two different tooth shapes: large teeth at the top and small teeth at the end. The distribution density of the large teeth is sparser than that of the small teeth.

3. A grain hulling and grain-breaking disc according to claim 1, characterized in that: The angle between the inclined surface and the bottom surface of the outer rubbing disc tooth distribution is a fixed angle, while the angle between the inclined surface and the bottom surface of the inner rubbing disc tooth distribution is a variable value, with the angle at the end increasing.

4. A grain hulling and grain-breaking disc according to claim 1, characterized in that: The teeth of the inner rubbing disc are distributed at a spiral angle.

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