Rice milling device for rice production

By designing the feeding and shielding mechanisms of the rice milling device, the problem of fully milling rice at different feeding speeds was solved, achieving efficient rice milling and debris removal, and improving the quality and efficiency of rice production.

CN224252878UActive Publication Date: 2026-05-19YICHANG HEJIAHUAN FOOD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YICHANG HEJIAHUAN FOOD CO LTD
Filing Date
2025-04-11
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing rice production equipment cannot guarantee that rice is fully milled under different feeding speeds, thus affecting the milling effect.

Method used

A device was designed that includes a rice milling mechanism, a feeding mechanism, a shielding mechanism, and a collecting mechanism. By adjusting the amount of rice and the setting of the cleaning plate through the shielding mechanism, the rice can be fully milled and impurities can be removed.

Benefits of technology

It improves the rice milling effect and maintenance efficiency, ensuring that rice is fully milled and impurities are removed at different feeding speeds.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a rice milling device for rice production, which comprises a rice milling mechanism, a feeding mechanism and a collecting mechanism are arranged on the rice milling mechanism, a shielding mechanism is arranged on the feeding mechanism, and a cleaning plate is arranged on the shielding mechanism. According to the rice milling device for rice production, rice is poured into the feeding mechanism, the position of the shielding mechanism is adjusted, the amount of rice entering the rice milling mechanism can be adjusted, the rice milling mechanism mills the rice, the rice is fully milled, the rice milling effect is improved, the collecting mechanism collects the milled rice and rice bran, and after rice milling is completed, the rice milling efficiency is improved. And the cleaning plate is installed on the shielding mechanism, the shielding mechanism is used for driving the cleaning plate to clean sundries in the feeding mechanism, and the maintenance efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of rice production technology, specifically to a rice milling device for rice production. Background Technology

[0002] In my country, rice is still widely produced using mechanical methods. This involves using the mechanical force generated by a rice milling machine to remove the husk and whiten the rice. If the force is mainly pressure, the husk removal is considered to be friction; if the husk removal is achieved at high speed, the husk removal is transformed into grinding. Generally speaking, the two characteristics coexist in the equipment, but one is stronger than the other in different models. The friction removal of the iron roller rice milling machine is stronger than the grinding, while the grinding of the diamond roller rice milling machine exceeds the friction removal.

[0003] According to Chinese Utility Model Application No. 202322482168.8, a rice milling machine with a sand roller is proposed. The utility model describes that "this utility model pours brown rice into the feed hopper, and drives the rotating roller and the actuating rod to rotate through the servo motor. By rotating the actuating rod, the brown rice can be agitated so that it can be fed evenly and smoothly, avoiding accumulation and reducing the quality of rice milling".

[0004] This rice milling machine uses a servo motor to drive a rotating roller and a lever to move the rice, reducing the problem of rice clogging at the feed hopper and resulting in poor milling effect. However, the speed at which the rice enters the feed hopper may vary. When the feed speed is slow, less rice passes through the two rollers, allowing for thorough milling. When the feed speed is fast, more rice passes through the rollers, making it difficult to mill thoroughly, thus affecting the milling effect. Therefore, an improvement is needed to solve the above problems with a rice milling device for rice production. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rice milling device for rice production, which has advantages such as good rice milling effect. It solves the problem that the speed at which rice enters the feed hopper may vary. When the feed speed is slow, less rice passes through the two sand rollers, allowing for thorough rice milling. However, when the feed speed is fast, more rice passes through the two sand rollers, making it difficult to mill the rice thoroughly, thus affecting the rice milling effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rice milling device for rice production, comprising a rice milling mechanism, wherein the rice milling mechanism is provided with a feeding mechanism and a collecting mechanism, the feeding mechanism is provided with a shielding mechanism, and the shielding mechanism is provided with a cleaning plate;

[0007] The feeding mechanism includes a feeding bin, and a filter screen is embedded in the inner bottom wall of the feeding bin;

[0008] The shielding mechanism includes a first housing, which is fixedly connected to the outer wall of the feeding hopper. A first motor is fixedly installed on the outer wall of the first housing. The output end of the first motor passes through the feeding hopper and is fixedly installed with a threaded rod. The side of the threaded rod away from the output end of the first motor is rotatably connected to the inner wall of the first housing through a first bearing. A threaded sleeve is installed on the external thread of the threaded rod. A movable rod that passes through and extends into the feeding hopper is fixedly installed on the outside of the threaded sleeve. A shielding block that fits against the inner wall of the feeding hopper is fixedly installed on the outside of the movable rod.

[0009] Furthermore, the rice milling mechanism includes a rice milling bin, the feeding bin is fixedly connected to the top of the rice milling bin, a second housing is fixedly installed on the outer wall of the rice milling bin, and two rice milling rollers are rotatably installed on the inner wall of the rice milling bin through a second bearing. The two rice milling rollers, on the side away from the inner wall of the rice milling bin, penetrate the rice milling bin and extend into the interior of the second housing. A second motor is fixedly installed on the outer wall of the second housing, and the output end of the second motor penetrates the second housing and is fixedly connected to one of the rice milling rollers. A first gear is fixedly installed on the outside of one of the rice milling rollers, and a second gear that meshes with the first gear is fixedly installed on the outside of the other rice milling roller.

[0010] Furthermore, the collection mechanism includes a collection chamber, which is fixedly connected to the bottom of the rice milling chamber. The outer wall of the collection chamber is fitted with a collection chamber door, and the inner bottom wall of the collection chamber is fitted with a collection box. A filter basket is placed on the top of the collection box, and the bottom of the filter basket extends into the interior of the collection box.

[0011] Furthermore, the interior of the feeding hopper is provided with a movable hole, which matches the threaded rod.

[0012] Furthermore, a connecting rod is fixedly installed on the outer wall of the shielding block, and a connecting cylinder matching the connecting rod is fixedly installed on the top of the cleaning plate. The connecting cylinder is threadedly connected to the connecting rod by bolts.

[0013] Furthermore, the inner bottom wall of the feeding hopper is sloped, and the outer side wall of the feeding hopper is fitted with a feeding hopper door.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This rice milling device for rice production comprises a milling mechanism, a feeding mechanism, a shielding mechanism, a cleaning plate, and a collecting mechanism. Rice is poured into the feeding mechanism. Adjusting the position of the shielding mechanism regulates the amount of rice entering the milling mechanism. The milling mechanism mills the rice thoroughly, improving the milling effect. The collecting mechanism collects the milled rice and bran. After milling, the cleaning plate is installed on the shielding mechanism, which drives the cleaning plate to clean debris from the feeding mechanism, improving maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the feeding mechanism of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the shielding block structure of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged view at point B in the middle;

[0021] Figure 6 This is a schematic diagram of the rice milling mechanism of this utility model;

[0022] Figure 7 This is a schematic diagram of the collection mechanism of this utility model.

[0023] In the diagram: 1 Rice milling mechanism, 11 Rice milling bin, 12 Feeding bin, 13 Rice milling roller, 14 Second motor, 15 First gear, 16 Second gear, 2 Feeding mechanism, 21 Feeding bin, 22 Filter screen, 3 Blocking mechanism, 31 First housing, 32 First motor, 33 Threaded rod, 34 Threaded sleeve, 35 Moving rod, 36 Blocking block, 4 Cleaning plate, 41 Connecting rod, 42 Connecting cylinder, 43 Bolt, 5 Collection mechanism, 51 Collection bin, 52 Collection box, 53 Filter screen basket. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-7 This embodiment of a rice milling device for rice production includes a rice milling mechanism 1, a feeding mechanism 2 and a collecting mechanism 5, a shielding mechanism 3 on the feeding mechanism 2, and a cleaning plate 4 on the shielding mechanism 3. The cleaning plate 4 is made of rubber.

[0026] Specifically, rice is poured into the feeding mechanism 2, and the position of the shielding mechanism 3 is adjusted to regulate the amount of rice entering the rice milling mechanism 1. The rice milling mechanism 1 mills the rice, ensuring thorough milling and improving the milling effect. The collecting mechanism 5 collects the milled rice and rice bran. After milling, the cleaning plate 4 is installed on the shielding mechanism 3, and the shielding mechanism 3 drives the cleaning plate 4 to clean the debris inside the feeding mechanism 2, improving maintenance efficiency.

[0027] In this embodiment, the rice milling mechanism 1 includes a rice milling bin 11. A second housing 12 is fixedly installed on the outer wall of the rice milling bin 11. Two rice milling rollers 13 are rotatably installed on the inner wall of the rice milling bin 11 via a second bearing. The side of each rice milling roller 13 away from the inner wall of the rice milling bin 11 passes through the rice milling bin 11 and extends into the interior of the second housing 12. A second motor 14 is fixedly installed on the outer wall of the second housing 12. The output end of the second motor 14 passes through the second housing 12 and is fixedly connected to one of the rice milling rollers 13. A first gear 15 is fixedly installed on the outside of one of the rice milling rollers 13, and a second gear 16 that meshes with the first gear 15 is fixedly installed on the outside of the other rice milling roller 13. The diameters of the first gear 15 and the second gear 16 are different.

[0028] Specifically, by turning on the second motor 14, the second motor 14 drives one of the rice milling rollers 13, the first gear 15, the second gear 16 and the other rice milling roller 13 to rotate, so that the two rice milling rollers 13 rotate relative to each other to mill the rice.

[0029] In this embodiment, the feeding mechanism 2 includes a feeding bin 21, which is fixedly connected to the top of the rice milling bin 11. A filter screen 22 is embedded in the inner bottom wall of the feeding bin 21, the inner bottom wall of the feeding bin 21 is inclined, and a feeding bin door is embedded in the outer side wall of the feeding bin 21.

[0030] Specifically, the rice falls into the inside of the feeding hopper 21, passes through the filter screen 22 and falls downwards, while the debris is located at the top of the filter screen 22.

[0031] In this embodiment, the shielding mechanism 3 includes a first housing 31, which is fixedly connected to the outer wall of the feeding hopper 21. A first motor 32 is fixedly installed on the outer wall of the first housing 31. The output end of the first motor 32 passes through the feeding hopper 21 and is fixedly installed with a threaded rod 33. The side of the threaded rod 33 away from the output end of the first motor 32 is rotatably connected to the inner wall of the first housing 31 through a first bearing. A threaded sleeve 34 is installed on the external thread of the threaded rod 33. A movable rod 35 that passes through and extends into the feeding hopper 21 is fixedly installed on the outside of the threaded sleeve 34. A movable hole is opened inside the feeding hopper 21, which matches the threaded rod 33. A shielding block 36 that fits against the inner wall of the feeding hopper 21 is fixedly installed on the outside of the movable rod 35. The gap between the shielding block 36 and the feeding hopper 21 is smaller than the grain size of rice, making it less likely to get stuck.

[0032] Specifically, by turning on the first motor 32, the first motor 32 drives the threaded rod 33 to rotate, and the threaded rod 33 drives the threaded sleeve 34, the moving rod 35 and the blocking block 36 to move, and the blocking block 36 blocks the filter screen 22.

[0033] In this embodiment, a connecting rod 41 is fixedly installed on the outer wall of the shielding block 36, and a connecting cylinder 42 matching the connecting rod 41 is fixedly installed on the top of the cleaning plate 4. The connecting cylinder 42 is threadedly connected to the connecting rod 41 by bolts 43.

[0034] Specifically, the cleaning plate 4 can be installed by fitting the connecting sleeve 42 onto the outside of the connecting rod 41 and screwing the bolt 43 into the inside of the connecting rod 41. The cleaning plate 4 can be disassembled by unscrewing the bolt 43 from the inside of the connecting rod 41 and removing the connecting sleeve 42 from the outside of the connecting rod 41.

[0035] In this embodiment, the collection mechanism 5 includes a collection chamber 51, which is fixedly connected to the bottom of the rice milling chamber 11. A collection chamber door is embedded in the outer wall of the collection chamber 51. A collection box 52 is placed on the inner bottom wall of the collection chamber 51. A filter basket 53 is placed on the top of the collection box 52. The bottom of the filter basket 53 extends into the interior of the collection box 52.

[0036] Specifically, after milling, the rice and rice bran fall into the collection chamber 51. Some of the rice bran passes through the filter basket 53 and is collected inside the collection box 52, while the other part of the rice bran and rice is collected inside the filter basket 53. The collection chamber door is opened, the collection box 52 is taken out, and the filter basket 53 is lifted and shaken up and down to make the rice bran fall into the collection box 52, thus reducing the degree of mixing.

[0037] The working principle of the above embodiments is as follows:

[0038] Rice falls into the feeding hopper 21. The first motor 32 is activated, driving the threaded rod 33 to rotate. The threaded rod 33 moves the threaded sleeve 34, the moving rod 35, and the blocking block 36. The blocking block 36 blocks the filter screen 22, keeping debris at the top of the filter screen 22. The rice falls through the filter screen 22. The second motor 14 is activated, driving one rice milling roller 13, the first gear 15, the second gear 16, and the other rice milling roller 13 to rotate. The two rice milling rollers 13 rotate relative to each other to mill the rice. The milled rice and rice bran fall into the collecting hopper 51. Some of the rice bran passes through the filter basket 53 and is collected in the collecting box 52. The remaining rice bran and rice are collected... Inside the filter basket 53, the amount of rice passing through the two rice milling rollers 13 is adjusted to fully mill the rice, improving the milling effect. After milling, the connecting cylinder 42 is fitted onto the outside of the connecting rod 41, and the bolt 43 is screwed into the inside of the connecting rod 41. The cleaning plate 4 can then be installed. The feeding hopper door is opened, and the first motor 32 is turned on. The first motor 32 drives the threaded rod 33 to rotate. The threaded rod 33 drives the threaded sleeve 34, the moving rod 35, the blocking block 36, and the cleaning plate 4 to move. The cleaning plate 4 pushes the debris on the top of the filter screen 22 to the outside of the feeding hopper 21. The collection hopper door is opened, the collection box 52 is taken out, and the filter basket 53 is lifted and shaken up and down to make the rice bran fall into the inside of the collection box 52, reducing the degree of mixing.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rice milling device for rice production, comprising a rice milling mechanism (1), characterized in that: The rice milling mechanism (1) is provided with a feeding mechanism (2) and a collecting mechanism (5). The feeding mechanism (2) is provided with a shielding mechanism (3). The shielding mechanism (3) is provided with a cleaning plate (4). The feeding mechanism (2) includes a feeding bin (21), and a filter screen (22) is embedded in the inner bottom wall of the feeding bin (21). The shielding mechanism (3) includes a first housing (31), which is fixedly connected to the outer wall of the feeding bin (21). A first motor (32) is fixedly installed on the outer wall of the first housing (31). The output end of the first motor (32) passes through the feeding bin (21) and is fixedly installed with a threaded rod (33). The side of the threaded rod (33) away from the output end of the first motor (32) is rotatably connected to the inner wall of the first housing (31) through a first bearing. A threaded sleeve (34) is installed on the outer thread of the threaded rod (33). A movable rod (35) that passes through and extends into the feeding bin (21) is fixedly installed on the outside of the threaded sleeve (34). A shielding block (36) that fits against the inner wall of the feeding bin (21) is fixedly installed on the outside of the movable rod (35).

2. The rice milling device for rice production as described in claim 1, characterized in that: The rice milling mechanism (1) includes a rice milling bin (11), a feeding bin (21) is fixedly connected to the top of the rice milling bin (11), a second housing (12) is fixedly installed on the outer side wall of the rice milling bin (11), and two rice milling rollers (13) are rotatably installed on the inner side wall of the rice milling bin (11) through a second bearing. The two rice milling rollers (13) pass through the rice milling bin (11) and extend into the interior of the second housing (12) on the side away from the inner side wall of the rice milling bin (11). A second motor (14) is fixedly installed on the outer side wall of the second housing (12). The output end of the second motor (14) passes through the second housing (12) and is fixedly connected to one of the rice milling rollers (13). A first gear (15) is fixedly installed on the outside of one of the rice milling rollers (13), and a second gear (16) that meshes with the first gear (15) is fixedly installed on the outside of the other rice milling roller (13).

3. The rice milling device for rice production as described in claim 2, characterized in that: The collection mechanism (5) includes a collection bin (51), which is fixedly connected to the bottom of the rice milling bin (11). The outer wall of the collection bin (51) is fitted with a collection bin door. A collection box (52) is placed on the inner bottom wall of the collection bin (51). A filter basket (53) is placed on the top of the collection box (52). The bottom of the filter basket (53) extends into the interior of the collection box (52).

4. The rice milling device for rice production as described in claim 1, characterized in that: The feed hopper (21) has a movable hole inside, which matches the threaded rod (33).

5. A rice milling device for rice production as described in claim 1, characterized in that: A connecting rod (41) is fixedly installed on the outer wall of the shielding block (36), and a connecting cylinder (42) matching the connecting rod (41) is fixedly installed on the top of the cleaning plate (4). The connecting cylinder (42) is threadedly connected to the connecting rod (41) by bolts (43).

6. A rice milling device for rice production as described in claim 2, characterized in that: The inner bottom wall of the feeding hopper (21) is inclined, and the outer side wall of the feeding hopper (21) is fitted with a feeding hopper door.