Grinding roller device for rice milling

Abstract

The invention provides a rice milling roller device which comprises a support, a milling roller, a plurality of cleaning units, a plurality of fixing plates, a sliding groove and a bolt. The rice milling roller device relates to the technical field of rice processing equipment.The multiple independent cleaning units are arranged, the elastic force of a spring is used for enabling a scraping plate to be in close contact with the surface of the milling roller all the time, and the cleaning efficiency is improved; the rice bran and impurities attached to the surface of the grinding roller can be automatically removed in real time while the grinding roller works, the problems of uneven grinding and efficiency reduction caused by impurity accumulation are effectively prevented, and the stability and consistency of the grinding effect are guaranteed; meanwhile, the cleaning units are in sliding connection with the sliding grooves in the support through the fixing plates and are fixed through bolts, so that the whole cleaning assembly can be subjected to position fine adjustment or overall replacement according to the abrasion condition of the grinding roller, operation is convenient and fast, and the maintenance cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of rice processing equipment, in particular to a rice milling grinding roller device. Background Art

[0002] In the rice processing industry, the rice milling process is a key link in determining the final rice yield and quality. Its core lies in the precise action of the grinding roller on the rice grains, removing the cortex of the brown rice surface through friction and shearing. However, during long-term continuous milling operations, impurities such as detached rice bran, starch, and broken rice will inevitably adhere to and accumulate on the surface of the grinding roller. These attachments not only change the original rough surface characteristics of the grinding roller, causing the grinding force on the brown rice to become uneven, which in turn seriously affects the uniformity and consistency of the whitening effect, resulting in inconsistent precision of the processed rice and affecting product quality. More seriously, when the attachments reach a certain thickness, it will also cause the friction coefficient between the grinding roller and the brown rice to change, resulting in a significant decrease in milling efficiency and increased unnecessary energy consumption. At the same time, the accumulation of impurities may also cause local overheating of the grinding roller and even form hard lumps due to extrusion, which not only increases the difficulty of subsequent cleaning and downtime, but also shortens the service life of the grinding roller. Summary of the Invention

[0003] The present invention provides a rice milling grinding roller device, comprising a bracket, a grinding roller, a plurality of cleaning units, a plurality of fixing plates, a chute and a bolt. The grinding roller is rotatably connected to the left and right sides of the bracket, and a plurality of independent cleaning units are connected through a plurality of fixing plates. Two chute are respectively fixedly arranged on the left and right sides of the bracket, and the two fixing plates located on the leftmost side and the left and right sides are slidably connected to the chute. Threaded holes are provided on the tops of the two fixing plates. The bolts are movably passed through the top of the bracket and the top of the chute and are then threadedly connected to the threaded holes of the fixing plates.

[0004] Preferably, the cleaning unit includes a support tube, a spring, a slider, a moving block and a scraper. An opening is provided at the bottom of the support tube, the top of the spring is fixedly connected to the top of the support tube, the slider is fixedly arranged at the bottom end of the spring, and the slider is slidably connected to the inner wall of the support tube, the moving block moves through the opening at the bottom of the support tube, and is fixedly connected to the slider, the scraper is fixedly arranged at the bottom end of the moving block, and is in close contact with the outer surface of the grinding roller.

[0005] Preferably, the chute is a concave structure.

[0006] Preferably, after the plurality of cleaning units are connected, the length of the scraper is the same as the length of the grinding roller.

[0007] The present invention provides a rice milling grinding roller device through improvements. Compared with the prior art, the present invention has the following improvements and advantages: the present invention uses multiple independent cleaning units and utilizes the elastic force of the spring to ensure that the scraper always maintains close contact with the surface of the grinding roller. While the grinding roller is working, the rice bran and impurities attached to the surface can be automatically and in real time removed, effectively preventing the problems of uneven grinding and reduced efficiency caused by the accumulation of impurities, and ensuring the stability and consistency of the grinding effect; at the same time, the cleaning unit is slidably connected to the slide groove on the bracket through the fixing plate and fixed with bolts, so that the position of the entire cleaning assembly can be fine-tuned or replaced as a whole according to the wear of the grinding roller, which is convenient to operate and has low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0009] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0010] Figure 2 This is a schematic diagram of the main structure of the cleaning unit of the present invention;

[0011] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of position A.

[0012] Description of reference numerals:

[0013] 1. Bracket; 2. Grinding roller; 3. Fixed plate; 4. Slide; 5. Bolt; 6. Support cylinder; 7. Spring; 8. Slider; 9. Moving block; 10. Scraper. DETAILED DESCRIPTION

[0014] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0016] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0017] See also Figure 1-3 The present invention provides a technical solution: a rice milling roller device, comprising a bracket 1, a grinding roller 2, multiple cleaning units, multiple fixing plates 3, a chute 4 and a bolt 5. The grinding roller 2 is rotatably connected to the left and right sides of the bracket 1. Multiple independent cleaning units are connected through multiple fixing plates 3. Two chute 4 are respectively fixed on the left and right sides of the bracket 1. The two fixing plates 3 located on the left and right are slidably connected to the chute 4, and threaded holes are opened on the tops of the two fixing plates 3. The bolts 5 are movably passed through the top of the bracket 1 and the top of the chute 4, and are threadedly connected to the threaded holes of the fixing plates 3.

[0018] Specifically, the cleaning unit includes a support tube 6, a spring 7, a slider 8, a moving block 9 and a scraper 10. An opening is provided at the bottom of the support tube 6. The top of the spring 7 is fixedly connected to the top of the support tube 6. The slider 8 is fixedly arranged at the bottom end of the spring 7, and the slider 8 is slidingly connected to the inner wall of the support tube 6. The moving block 9 is movable through the opening at the bottom of the support tube 6, and is fixedly connected to the slider 8. The scraper 10 is fixedly arranged at the bottom end of the moving block 9, and is in close contact with the outer surface of the grinding roller 2.

[0019] Specifically, the chute 4 is a concave structure.

[0020] Specifically, after the multiple cleaning units are connected, the length of the scrapers 10 is the same as the length of the grinding roller 2 .

[0021] Working principle: When working, first connect multiple independent cleaning units into a whole through the fixing plates 3, and insert the fixing plates 3 at both ends into the slide grooves 4 on the left and right sides of the bracket 1, and then tighten the bolts 5 at the top to fix the entire cleaning assembly on the bracket 1. At this time, the spring 7 inside each cleaning unit is compressed, so that the scraper 10 at the bottom fits tightly with the outer surface of the grinding roller 2; when the grinding roller 2 rotates in the bracket 1 to grind rice, impurities such as rice bran and broken rice attached to the surface of the grinding roller 2 will be continuously scraped away by the high-speed rotating scraper 10. The scraped impurities are separated from the surface of the grinding roller 2 by the combined action of centrifugal force and airflow, and fall to the bottom for collection or discharge; since each cleaning unit works independently, the spring 7 of a single unit can provide continuous elastic preload to ensure that the scraper 10 always keeps good contact with the grinding roller 2. When the grinding roller 2 is worn or vibrates slightly due to long-term use, the spring 7 will automatically expand and contract to compensate and maintain a stable scraping effect, thereby achieving uninterrupted online cleaning during the operation of the grinding roller 2, ensuring the consistency of rice milling efficiency and product quality.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rice milling roller device, characterized in that: The invention comprises a bracket (1), a grinding roller (2), a plurality of cleaning units, a plurality of fixing plates (3), a slide groove (4) and a bolt (5); the grinding roller (2) is rotatably connected to the left and right sides of the bracket (1); a plurality of independent cleaning units are connected via a plurality of fixing plates (3); two slide grooves (4) are fixedly arranged on the left and right sides of the bracket (1), respectively; the two fixing plates (3) located on the left and the left and right sides are slidably connected to the slide groove (4), and threaded holes are provided on the tops of the two fixing plates (3); the bolts (5) are movably passed through the top of the bracket (1) and the top of the slide groove (4), and are threadedly connected to the threaded holes of the fixing plates (3).

2. The rice milling roller device according to claim 1, characterized in that: The cleaning unit comprises a support tube (6), a spring (7), a slider (8), a moving block (9) and a scraper (10); an opening is provided at the bottom of the support tube (6); the top end of the spring (7) is fixedly connected to the top of the support tube (6); the slider (8) is fixedly arranged at the bottom end of the spring (7), and the slider (8) is slidably connected to the inner wall of the support tube (6); the moving block (9) is movable through the opening at the bottom of the support tube (6) and is fixedly connected to the slider (8); the scraper (10) is fixedly arranged at the bottom end of the moving block (9), and is in close contact with the outer surface of the grinding roller (2).

3. The rice milling roller device according to claim 1, characterized in that: The chute (4) is a concave structure.

4. The rice milling roller device according to claim 2, characterized in that: After the plurality of cleaning units are connected, the length of the scrapers (10) thereof is the same as the length of the grinding roller (2).

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