Bran screening device of rice husking machine
By using a multi-layer filter screen and a servo motor-driven rotating sieve cover design, the problem of incomplete rice bran separation in traditional rice milling sieve devices is solved, achieving precise classification and efficient sieving of rice bran, thus improving the purity of rice and production efficiency.
Patent Information
- Application Number
- CN202422843828.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The bran screening device of traditional rice mills cannot accurately distinguish between bran and rice of different particle sizes, resulting in incomplete separation of rice bran, affecting the purity of rice and production efficiency.
The system employs a multi-layer filter design with gradually increasing or decreasing pore size. Combined with a servo motor driving the sieve cover to rotate and a cylinder driving the sieve cover to change its angle, it achieves full movement and re-sieving of the rice bran.
It enables precise classification and efficient screening of rice bran, improving rice quality and production efficiency, and meeting screening requirements with different quality standards.
Smart Images
Figure CN223465067U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of rice mill, in particular to a rice mill bran screening device. BACKGROUND
[0002] In the grain processing industry, especially in the rice milling process, the bran screening device plays a crucial role in effectively separating rice bran from rice grains. However, the traditional rice mill bran screening device has many shortcomings, which is difficult to meet the demand of modern grain processing for high quality and high efficiency.
[0003] In terms of separation accuracy, the traditional bran screening device often uses a single aperture filter screen or a simple filtering structure. This design is difficult to accurately distinguish between bran and rice of different particle sizes. For example, in actual processing, rice bran contains various sizes of bran chips and a small amount of fine rice grains that may be mixed, and the traditional filter screen, due to its fixed aperture, can only roughly separate the larger particles of bran from rice grains, and it is difficult to accurately classify the bran chips and fine rice grains with similar particle sizes. This results in a large amount of bran chips that have not been completely separated remaining in the product during the subsequent processing, affecting the purity and quality of the rice, and thus reducing the market competitiveness of the product.
[0004] In terms of screening efficiency, in most cases, rice bran is filtered through the filter screen under static or limited disturbance. This method makes it difficult for rice bran to fully contact the filter screen, and local accumulation is likely to occur, resulting in some rice bran not being screened in time through the filter screen, prolonging the screening time and reducing the production efficiency of the entire rice milling process.
[0005] The above information disclosed in the background section of this specification is only intended to enhance the understanding of the background of the present application, and therefore, it may include information that is not prior art known to those of ordinary skill in the art. CONTENT OF THE PRESENT INVENTION
[0006] To solve the problem that the traditional bran screening device often uses a single aperture filter screen or a simple filtering structure, which makes it difficult to accurately distinguish between bran and rice of different particle sizes, the present application provides a rice mill bran screening device.
[0007] The rice mill bran screening device provided by the present application adopts the following technical solution:
[0008] The bran screening device of the rice milling machine includes a bran screening box, a bran screening cover is installed inside the bran screening box, and the bran screening cover is composed of filter screen 1, filter screen 2 and filter screen 3, and the aperture sizes of filter screen 1, filter screen 2 and filter screen 3 increase or decrease from one side to the other side. A support sleeve is rotatably provided in the middle of the outer wall of the bran screening cover, and a connecting frame is fixed to the top of the support sleeve. Both ends of the connecting frame are integrally structured and fixed with a resistance block. A positioning block is fixed on one side of the back wall of the bran screening box, and a cylinder supporting the resistance block is installed on the positioning block.
[0009] Preferably, a plurality of supporting legs are welded to the bottom edge of the bran screening box, and three equally spaced discharge pipes are installed on the outer wall of the bran screening box, and a support frame is fixedly connected to the output port of the discharge pipe.
[0010] Preferably, the interior of the bran screening box is provided with screening chamber 1, screening chamber 2 and screening chamber 3 in sequence from one side to the other.
[0011] Preferably, a support arm is symmetrically welded to the outer wall of one side of the bran screening box, and a mounting piece is rotatably mounted inside the support arm.
[0012] Preferably, a sealing cover is hinged at one end of the sieve cover, a mounting seat is fixed at the end of the sieve cover away from the sealing cover, the mounting seat is connected to the inner wall of the mounting member, a servo motor is installed on the outer wall of the mounting member, and the output end of the servo motor is transmitted to the mounting seat.
[0013] Preferably, both ends of the cylinder are rotatably connected with connectors, one of the connectors is fixed to the inner wall of the positioning block, and the other connector is fixed to the inner wall of the stop block.
[0014] In summary, this application has the following beneficial technical effects:
[0015] The present application allows bran crumbs of different sizes to pass through by increasing or decreasing the aperture sizes of filter screens 1, 2 and 3 on the bran screening cover from one side to the other. The multi-layer filter screen design can accurately separate the bran crumbs according to the size of the bran crumbs, ensuring that bran and rice of different particle sizes can be accurately classified. The precise separation facilitates the subsequent processing and utilization of rice bran, thereby improving the quality and purity of the product. The bran screening cover is set to be rotatable, so that the rice bran can fully move inside the bran screening cover and fully contact with filters of different apertures, thereby greatly improving the screening efficiency. Moreover, through the movable connection between the cylinder and the bran screening cover, when one screening is not thorough enough, the rice bran can be re-gathered and screened again by the operation of the cylinder, thereby further improving the quality and effect of the screening, and meeting the needs of rice bran screening with different quality requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Fig. 1 It is a front view of the bran screening device of the rice milling machine according to the embodiment of the application.
[0017] Fig. 2 is the structural schematic view of the bran screening device of the application embodiment rice mill.
[0018] Fig. 3 is the structural schematic view of the bran screening cover of the application embodiment.
[0019] Legend: 1, bran screening box; 2, bran screening cover; 3, support leg; 4, discharge pipe; 5, support frame; 6, screening chamber one; 7, screening chamber two; 8, screening chamber three; 9, support arm; 10, mounting; 11, servo motor; 12, positioning block; 13, connecting frame; 14, abutting block; 15, air cylinder; 16, connecting head; 17, filter screen one; 18, filter screen two; 19, filter screen three; 20, mounting seat. DETAILED DESCRIPTION
[0020] The following will be combined with the Figs. 1-3 The application is further described in detail.
[0021] The application embodiment discloses a bran screening device of a rice mill. Referring to Figs. 1-3 , including a bran screening box 1, a bran screening cover 2 is installed inside the bran screening box 1, the bran screening cover 2 is composed of a filter screen one 17, a filter screen two 18 and a filter screen three 19, and the aperture size of the filter screen one 17, the filter screen two 18 and the filter screen three 19 increases or decreases from one side to the other side in turn, which can make the rice bran move fully in the bran screening cover 2 and fully contact with the filter screens of different aperture sizes, greatly improving the screening efficiency, a support sleeve is rotationally arranged on the middle part of the outer wall of the bran screening cover 2, a connecting frame 13 is fixedly arranged at the top end of the support sleeve, the two ends of the connecting frame 13 are integrally fixed with abutting blocks 14, a positioning block 12 is fixed on one side of the back wall of the bran screening box 1, an air cylinder 15 supporting the abutting blocks 14 is installed on the positioning block 12, and the two ends of the air cylinder 15 are rotationally connected with connecting heads 16, one of the connecting heads 16 is fixed with the inner wall of the positioning block 12, and the other connecting head 16 is fixed with the inner wall of the abutting block 14, so that the abutting blocks 14 can be driven to move upward by the extension and retraction work of the air cylinder 15, and then the support sleeve and the bran screening cover 2 inside the support sleeve can be pushed to change the angle upward, so that the bran screening process is more flexible, and the bran screening demand of different quality requirements is met.
[0022] In the application, a plurality of support legs 3 are welded at the bottom edge of the bran screening box 1, three discharge pipes 4 are arranged on the outer wall of the bran screening box 1 at equal intervals, a support frame 5 is fixedly connected outside the output port of the discharge pipe 4, and a screening chamber one 6, a screening chamber two 7 and a screening chamber three 8 are sequentially arranged inside the bran screening box 1 from one side to the other side, the inner walls of the screening chamber one 6, the screening chamber two 7 and the screening chamber three 8 are provided with elastic supporting blocks supporting the support sleeve, and the discharge pipe 4 corresponds to different screening chambers one 6, screening chambers two 7 and screening chambers three 8, so as to facilitate the classification and recycling of the screened debris.
[0023] In the application, the support arms 9 are symmetrically welded on one side of the outer wall of the rice bran screening box 1, the mounting member 10 is rotatably installed inside the support arms 9, the sealing cover is hingedly connected to one end of the rice bran screening cover 2, the rice bran can be added into the interior of the rice bran screening cover 2 by opening the sealing cover for screening, the mounting seat 20 is fixed to the end of the rice bran screening cover 2 away from the sealing cover, the mounting seat 20 is connected to the inner wall of the mounting member 10, the servo motor 11 is installed on the outer wall of the mounting member 10, the output end of the servo motor 11 is in transmission with the mounting seat 20, the rice bran screening cover 2 can be driven to rotate 360 degrees in the rice bran screening box 1 by the operation of the servo motor 11, thereby promoting the 360-degree circumferential movement of the rice bran in the interior.
[0024] The implementation principle of the rice bran screening device of the rice mill in the application embodiment is as follows:
[0025] In use, the sealing cover is opened in advance, the rice bran is put into the rice bran screening cover 2, and then the rice bran screening cover 2 is driven to rotate 360 degrees in the rice bran screening box 1 by the operation of the servo motor 11, at this time, the support sleeve located in the middle of the outer wall of the rice bran screening cover 2 supports it to prevent the rice bran screening cover 2 from being displaced, thereby helping the rice bran in the interior of the rice bran screening box 1 to be screened well, so that the rice bran scraps of different sizes in the interior are filtered and discharged outside the screening chambers one 6, two 7 and three 8 through the filter screens one 17, two 18 and three 19 of different aperture sizes, and then the rice bran scraps are discharged outside through the corresponding discharge pipes 4, which has a good separating effect on the broken rice and rice bran, and the connecting frame 13 can be driven to move upward by the operation of the cylinder 15 in the inner side of the positioning block 12, and then the one end of the rice bran screening cover 2 is rotated upward, at this time, the mounting member 10 is rotated and supported between the two support arms 9, thereby enabling the screened rice bran in the interior to be gathered together for repeated screening, so that the screening process is more flexible, when the screening is not thorough enough, the rice bran can be gathered again and screened again by the action of the cylinder 15, thereby further improving the quality and effect of the screening and meeting the screening requirements of rice bran of different quality requirements.
[0026] Finally, it should be pointed out that: first, in the description of the application, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between the two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;
[0027] Secondly: the structures involved in the drawings of the utility model embodiment only relate to the structures involved in the disclosed embodiment, other structures can be referred to the usual design, in the case of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;
[0028] Finally: the above only for the preferred embodiments of the present application have, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the scope of protection of the present application.
[0029] The above are the preferred embodiments of the present application, and are not limited by the scope of protection of the present application, therefore: any equivalent changes made in accordance with the structure, shape, principle of the present application, should be covered within the scope of protection of the present application.
Claims
1. A bran screening device of a rice mill comprising a bran screening box (1), characterized in that: The inside of the sieve box (1) is provided with a sieve cover (2), which is composed of filter screen one (17), filter screen two (18) and filter screen three (19), and the aperture size of filter screen one (17), filter screen two (18) and filter screen three (19) increases or decreases from one side to the other side, the middle of the outer wall of the sieve cover (2) is rotatably provided with a support sleeve, the top end of the support sleeve is fixedly provided with a connecting frame (13), the both ends of the connecting frame (13) are integrally fixed with a stop block (14), the back wall of the sieve box (1) is fixedly provided with a positioning block (12), and the positioning block (12) is provided with a cylinder (15) supporting the stop block (14).
2. The rice mill's bran screening device according to claim 1, characterized in that: The bottom end of the sieve box (1) is welded with a plurality of support legs (3), and the outer wall of the sieve box (1) is provided with three discharge pipes (4) distributed at equal intervals, and the output port of the discharge pipe (4) is fixedly connected with a support frame (5).
3. The rice mill's bran screening device according to claim 1, characterized in that: The inside of the sieve box (1) is provided with sieve chamber one (6), sieve chamber two (7) and sieve chamber three (8) from one side to the other side.
4. The rice mill's bran screening device according to claim 1, characterized in that: The outside of one side of the sieve box (1) is symmetrically welded with a support arm (9), and the inside of the support arm (9) is rotatably provided with a mounting piece (10).
5. The rice mill's bran screening device according to claim 4, characterized in that: One end of the sieve cover (2) is hingedly provided with a sealing cover, and the end of the sieve cover (2) away from the sealing cover is fixedly provided with a mounting seat (20), the mounting seat (20) is connected with the inner wall of the mounting piece (10), the outer wall of the mounting piece (10) is provided with a servo motor (11), and the output end of the servo motor (11) is in transmission with the mounting seat (20).
6. The rice mill's bran screening device according to claim 1, characterized in that: The both ends of the cylinder (15) are rotatably connected with connecting heads (16), one of the connecting heads (16) is fixedly connected with the inner wall of the positioning block (12), and the other connecting head (16) is fixedly connected with the inner wall of the stop block (14).