A type of parallel upper and lower roller rice milling machine with upward suction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-11
AI Technical Summary
随着大米厂的集约化、规模化程度越来越高的发展趋势，单台米机的产量已无法满足生产规模的需要，所以，在此情况下，多采用单机并联的生产方式或者采用平行辊并联的生产方式，来满足产量的需求
[0007]本实用新型有益效果是：采用上下米辊错位并联结构，既保证实现并联进料，又保证上下精碾室的米筛更换，不受影响。对比平行辊并联的方式，更加节省占地面积。采用上下米辊独立风道结构，能够保证上、下精碾室的风量稳定，不会因为串风相互影响。它可以减少占地面积同时增加产量。
Smart Images
Figure CN224613894U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rice milling machine, specifically a rice milling machine with upper and lower rollers connected in parallel and with an upward suction iron roller. Background Technology
[0002] Rice is the staple food for more than half of the world's population, and about 60% of my country's population relies on rice as their main food source, making it of paramount importance for ensuring food security. Appropriate and precise processing has become the main theme of the rice milling industry, with the primary goal of increasing rice yield and reducing energy consumption. The rice milling machine is the core equipment in the rice processing industry, playing a crucial role in improving yield and reducing energy consumption. The working principle of a horizontal rice milling machine: Brown rice enters the whitening chamber through the feed hopper via a magnetic separator and flow regulation mechanism. It is then fed by a spiral head to the abrasive roller and spirals along the roller's surface. The sharp abrasive grains on the surface of the rotating diamond abrasive roller at a certain linear speed grind away the bran of the brown rice, and the rice grains rub against each other, as well as against the rice blades and sieves, thus opening and whitening the rice.
[0003] The main function of existing horizontal iron roller rice milling machines is to be installed after sand roller rice milling machines for rice whitening, playing a role in fine milling or polishing (also known as surface repair). With the increasing intensification and scale of rice mills, the output of a single rice milling machine can no longer meet the needs of large-scale production. Therefore, in this situation, parallel production methods with single machines or parallel rollers are often used to meet production demands. However, this approach brings problems: firstly, the parallel single-machine method requires a large floor space; secondly, the parallel roller method results in complex and time-consuming replacement of the inner rice sieve. These points reflect some shortcomings and functional deficiencies of traditional iron roller rice milling machines. Therefore, inventing a top-suction iron roller rice milling machine with parallel upper and lower rollers would be highly beneficial. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing rice milling machines by providing a top-suction iron roller rice milling machine with parallel upper and lower rollers. It adopts a staggered parallel structure with independent air suction channels, which facilitates equipment operation and maintenance, reduces floor space, and increases output.
[0005] The technical solution of this utility model is implemented as follows: it includes an integral frame (10), an integral frame (10), a whitening chamber (8) fixed inside the integral frame (10), a drive motor (7) fixed on one side of the integral frame (10), a suction hood (9) fixed on the upper part of the whitening chamber (8), a feeding device (6) fixed on the integral frame (10), and a bran removal device (3) installed at the bottom of the whitening chamber (8). The whitening chamber (8) is characterized in that: the whitening chamber (8) is equipped with a first rice milling roller (1) and a second rice milling roller (2) connected in parallel with upper and lower rollers. The first rice milling roller (1) and the second rice milling roller (2) are respectively connected to the feeding device (6), and the first rice milling roller (1) and the second rice milling roller (2) are driven by the drive motor (7).
[0006] The preferred technical solution of this utility model is as follows: the first rice milling roller (1) and the second rice milling roller (2) adopt an upper and lower roller staggered structure. The first rice milling roller (1) and the second rice milling roller (2) in the whitening chamber (8) are separated by a channel partition (4) to form two independent left air ducts (11) and right air ducts (12). The first rice milling roller (1) is connected to the bran discharge device (3) through the bran discharge pipe (13). The feeding device (6) is equipped with two feeding control devices (14), one of which is connected to the feed port of the second rice milling roller (2) through the feeding pipe (15). The drive motor (7) drives the first rice milling roller (1) and the second rice milling roller (2) through the upper pulley (16), the lower pulley (17) and the drive belt (18).
[0007] The advantages of this invention are: The staggered parallel structure of the upper and lower rice rollers ensures both parallel feeding and uninterrupted replacement of the rice sieves in the upper and lower milling chambers. Compared to parallel rollers, this design saves floor space. The independent air duct structure for the upper and lower rice rollers ensures stable airflow in both milling chambers, preventing cross-contamination. This design reduces floor space while increasing output. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 3 Schematic diagram of the rear view structure Figure 4 This is a schematic diagram of the structure of the rice milling roller of this utility model. Figure 5 This is a schematic diagram of the transmission structure of this utility model. Detailed Implementation
[0009] The present invention will be further described below with reference to the accompanying drawings: like Figure 1 , Figure 2 As shown, this utility model includes an integral frame (10), an integral frame (10), a whitening chamber (8) fixed inside the integral frame (10), a drive motor (7) fixed on one side of the integral frame (10), a suction hood (9) fixed on the upper part of the whitening chamber (8), a feeding device (6) fixed on the integral frame (10), a bran removal device (3) installed at the bottom of the whitening chamber (8), and a first rice milling roller (1) and a second rice milling roller (2) connected in parallel with upper and lower rollers inside the whitening chamber (8). The first rice milling roller (1) and the second rice milling roller (2) are respectively connected to the feeding device (6), and the first rice milling roller (1) and the second rice milling roller (2) are driven by the drive motor (7).
[0010] like Figure 2 and Figure 3 As shown, the first rice milling roller (1) and the second rice milling roller (2) adopt an upper and lower roller staggered structure. The first rice milling roller (1) and the second rice milling roller (2) in the whitening chamber (8) are separated by a channel partition (4) to form two independent left air ducts (11) and right air ducts (12). The first rice milling roller (1) is connected to the bran discharge device (3) through the bran discharge pipe (13). Figure 4 , Figure 5 As shown, the feeding device (6) is equipped with two feeding control devices (14), one of which is connected to the feed inlet of the second rice milling roller (2) through the feeding pipe (15). The drive motor (7) drives the first rice milling roller (1) and the second rice milling roller (2) through the upper pulley (16), the lower pulley (17) and the drive belt (18).
Claims
1. A rice milling machine with parallel upper and lower rollers and top suction, comprising an integral frame (10), an integral frame (10), a whitening chamber (8) fixed inside the integral frame (10), a drive motor (7) fixed on one side of the integral frame (10), a suction hood (9) fixed on the upper part of the whitening chamber (8), a feeding device (6) fixed on the integral frame (10), and a bran removal device (3) installed at the bottom of the whitening chamber (8), characterized in that: The whitening chamber (8) is equipped with a first rice milling roller (1) and a second rice milling roller (2) connected in parallel. The first rice milling roller (1) and the second rice milling roller (2) are respectively connected to the feeding device (6). The first rice milling roller (1) and the second rice milling roller (2) are driven by a transmission motor (7).
2. The parallel upper and lower rollers of the top suction iron roller mill according to claim 1, characterized in that: The first rice milling roller (1) and the second rice milling roller (2) adopt an upper and lower roller staggered structure. The first rice milling roller (1) and the second rice milling roller (2) in the whitening chamber (8) are separated by a channel partition (4) to form two independent left air ducts (11) and right air ducts (12).
3. The parallel upper and lower rollers of the top suction iron roller mill according to claim 1, characterized in that: The first rice milling roller (1) is connected to the bran discharge device (3) via the bran discharge pipe (13).
4. A parallel upper and lower roller sizing machine for iron rollers with upward suction, as described in claim 1, is characterized in that: The feeding device (6) is equipped with two feeding control devices (14), one of which is connected to the feed port of the second rice milling roller (2) through the feeding pipe (15).
5. A parallel upper and lower roller sizing machine for iron rollers with upward suction, as described in claim 1, is characterized in that: The drive motor (7) drives the first rice milling roller (1) and the second rice milling roller (2) through the upper pulley (16), the lower pulley (17) and the drive belt (18).