A multiple rice milling equipment for rice powder processing
By using a progressive grinding and adjustment mechanism in a multi-stage rice milling system, the problems of uneven rice grain breakage and poor adaptability in rice noodle processing are solved, achieving uniform rice grain grinding and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广西九盛农业有限公司
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional rice noodle processing equipment uses single-stage grinding, which results in uneven crushing of rice grains, excessive grinding, reduced raw material utilization, and difficulty in adapting to the grinding intensity requirements of different rice varieties.
Design a multi-stage rice milling device, comprising three milling troughs and milling blocks, which achieves multi-stage milling and gap adjustment through progressive milling and a multi-stage spiral elevator, combined with an adjustment mechanism, to adapt to different process requirements.
To achieve uniform grinding of rice grains, improve raw material utilization, adapt to diverse process requirements, avoid over-grinding of rice grains, and reduce production costs.
Smart Images
Figure CN224293457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice noodle processing technology, specifically to a multi-stage rice milling device for rice noodle processing. Background Technology
[0002] In the rice noodle processing, rice milling is one of the key steps, directly affecting the particle size, texture, and yield of the rice noodles. Traditional rice milling equipment usually uses single-stage milling. Single-stage high-intensity milling not only easily leads to uneven crushing of rice grains, but also easily causes over-grinding of rice grains, reducing raw material utilization and increasing production costs. At the same time, different rice varieties require different milling intensities, and traditional rice milling equipment has difficulty in flexibly adjusting the milling gap, resulting in poor processing adaptability. Therefore, there is an urgent need for a multi-stage rice milling equipment for rice noodle processing. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a reasonably designed multi-stage rice milling device for rice noodle processing, thereby solving the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a housing, a feeding hopper, and a discharging hopper, with a feeding hopper located at the top of the housing and a discharging hopper located at the bottom of the housing;
[0005] It also includes:
[0006] The rice milling trough consists of three troughs, all of which are movably installed inside the machine housing. Several sliding grooves on the outer ring wall of the rice milling trough are provided with sliding blocks, which are fixedly installed on the inner wall of the machine housing. The machine housing is provided with an adjustment mechanism connected to the rice milling trough.
[0007] The motor is fixedly mounted on the upper part of the housing. A rotating rod is rotatably mounted inside the housing via bearings. The output shaft of the motor is connected to the rotating rod. Three rice milling blocks are fixedly mounted on the rotating rod and are located in the rice milling trough.
[0008] The sieve plate consists of three sieve plates, which are fixedly installed inside the machine housing below the three rice milling troughs. The sieve plates are rotatably mounted on the rotating rod via bearings. Several through holes are provided on the annular side wall of the machine housing above the three sieve plates.
[0009] The spiral guide shell consists of three parts, all of which are fixedly fitted onto the machine housing and are connected to the through hole. A multi-stage spiral elevator is fixedly installed on the left side wall of the machine housing. A feeding port that cooperates with the multi-stage spiral elevator is opened on the left side wall of the machine housing above the rice milling trough. The spiral guide shell is provided with a feeding port that cooperates with the multi-stage spiral elevator.
[0010] Furthermore, the adjustment mechanism includes:
[0011] The movable rods are two in number and are respectively movably inserted into two movable slots opened on the rice milling trough. The front ends of the two movable rods pass through the machine casing and are fixedly mounted with adjustment frames. A fixed shell is fixedly mounted on the front side wall of the machine casing, and the adjustment frames are movably mounted in the fixed shell.
[0012] The guide blocks are four in number and are fixedly installed on the left and right sides of the two moving rods respectively. The guide blocks are movably installed in the inclined guide grooves opened on the inner side wall of the moving groove. A fixed rod is movably inserted in the moving groove. The rear end of the fixed rod is fixedly connected to the inner wall of the housing, and the front end of the fixed rod is movably inserted in the moving rod.
[0013] A threaded adjusting rod is inserted into a fixed housing via a bearing, and an adjusting bracket is sleeved on the threaded adjusting rod via a threaded rotation.
[0014] Furthermore, guide rods are fixedly installed on both the left and right sides inside the fixed shell, and the guide rods are movably inserted through the adjustment frame.
[0015] Furthermore, a reference point is provided on the front side of the rice milling trough, and a transparent scale plate that matches the reference point is fixedly installed in the strip groove opened on the front side wall of the machine casing.
[0016] Furthermore, sealing rings are fixedly installed in the two annular grooves on the rice milling trough, and the sealing rings are movable and in contact with the inner wall of the machine casing.
[0017] Furthermore, the upper part of the rice milling trough is configured with an inward downward tilting structure, and the upper part of the rice milling block is configured with an outward downward tilting structure.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the multi-stage rice milling equipment for rice noodle processing described in this utility model can not only realize multi-stage progressive milling of rice grains and improve the uniformity of milling, but also adjust the milling gap to adapt to the needs of diverse processes. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 yes Figure 1 Enlarged view of part A in the image.
[0021] Figure 3 This is a schematic diagram of the spiral guide shell in this utility model.
[0022] Figure 4 This is a schematic diagram of the internal structure of the casing in this utility model.
[0023] Figure 5 yes Figure 4 Enlarged view of part B in the image.
[0024] Figure 6 This is a cross-sectional view of the rice milling trough in this utility model.
[0025] Figure 7 yes Figure 6 Enlarged view of section C in the image.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Casing; 2. Feeding hopper; 3. Discharging hopper; 4. Rice milling trough; 5. Sliding trough; 6. Sliding block; 7. Adjusting mechanism; 7-1. Moving rod; 7-2. Adjusting frame; 7-3. Guide block; 7-4. Fixed rod; 7-5. Threaded adjusting rod; 7-6. Fixed shell; 8. Motor; 9. Rotating rod; 10. Rice milling block; 11. Screen plate; 12. Through hole; 13. Spiral guide shell; 14. Multi-stage spiral elevator; 15. Feed port; 16. Feed inlet; 17. Moving trough; 18. Inclined guide trough; 19. Guide rod; 20. Reference point; 21. Transparent scale plate; 22. Sealing ring. Detailed Implementation
[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0029] like Figures 1-7 As shown, the specific embodiment adopts the following technical solution: it includes a housing 1, a feeding hopper 2 and a discharging hopper 3, with the feeding hopper 2 provided on the upper part of the housing 1 and the discharging hopper 3 provided on the bottom of the housing 1;
[0030] It also includes:
[0031] The rice milling trough 4 consists of three troughs, all of which are movably installed inside the housing 1. Several sliding grooves 5 are opened on the outer ring wall of the rice milling trough 4, and sliders 6 are slidably installed in each groove. The sliders 6 are fixedly installed on the inner wall of the housing 1. The housing 1 is provided with an adjustment mechanism 7 connected to the rice milling trough 4. Sealing rings 22 are fixedly installed in the two annular grooves opened on the rice milling trough 4. The sealing rings 22 are movably abutting against the inner wall of the housing 1. The sealing rings 22 can improve the sealing between the rice milling trough 4 and the inner wall of the housing 1, and prevent rice grains from getting stuck in the gap between the rice milling trough 4 and the housing 1.
[0032] The motor 8 is fixedly mounted on the upper part of the housing 1. A rotating rod 9 is rotatably mounted inside the housing 1 via a bearing. The output shaft of the motor 8 is connected to the rotating rod 9. Three rice grinding blocks 10 are fixedly mounted on the rotating rod 9 and are located in the rice grinding trough 4. The upper part of the rice grinding trough 4 is designed with an inward downward tilting structure, and the upper part of the rice grinding blocks 10 is designed with an outward downward tilting structure. This design can provide a guide for the rice grains on the rice grinding blocks 10 and the rice grinding trough 4 to fall, thus preventing the rice grains from remaining on the rice grinding blocks 10 and the rice grinding trough 4 and making it difficult for them to fall. A rice grinding gap can be formed between the rice grinding blocks 10 and the rice grinding trough 4. The three layers of rice grinding gaps are set to decrease from top to bottom to achieve progressive grinding of the rice grains.
[0033] Three sieve plates 11 are fixedly installed inside the machine housing 1 at the position below the three rice milling troughs 4. The sieve plates 11 are rotatably sleeved on the rotating rod 9 through bearings. Several through holes 12 are provided on the annular side wall of the machine housing 1 at the position above the three sieve plates 11.
[0034] The spiral guide shell 13 consists of three parts, all of which are fixedly sleeved on the machine housing 1 and are connected to the through hole 12. A multi-stage spiral elevator 14 is fixedly installed on the left side wall of the machine housing 1. A feeding port 15 that cooperates with the multi-stage spiral elevator 14 is opened on the left side wall of the machine housing 1 above the rice milling trough 4. The spiral guide shell 13 is provided with a feeding port 16 that cooperates with the multi-stage spiral elevator 14.
[0035] The adjustment mechanism 7 includes:
[0036] Two movable rods 7-1 are respectively movably inserted into two movable slots 17 opened on the rice milling trough 4. The front ends of the two movable rods 7-1 pass through the machine housing 1 and are fixedly installed with an adjustment frame 7-2. A fixed shell 7-6 is fixedly installed on the front side wall of the machine housing 1, and the adjustment frame 7-2 is movably installed in the fixed shell 7-6.
[0037] Four guide blocks 7-3 are fixedly installed on the left and right sides of the two moving rods 7-1 respectively. The guide blocks 7-3 are movably installed in the inclined guide groove 18 opened on the inner side wall of the moving groove 17. The fixed rod 7-4 is movably inserted in the moving groove 17. The rear end of the fixed rod 7-4 is fixedly connected to the inner wall of the housing 1, and the front end of the fixed rod 7-4 is movably inserted in the moving rod 7-1.
[0038] A threaded adjusting rod 7-5 is rotatably inserted into a fixed housing 7-6 via a bearing. An adjusting frame 7-2 is threadedly mounted on the threaded adjusting rod 7-5. The adjusting mechanism 7 allows for adjustment of the height of the rice milling trough 4 within the machine housing 1, thereby changing the rice milling gap between the rice milling trough 4 and the rice milling block 10. This facilitates the adaptation and adjustment of the rice milling gap according to different processing techniques. Guide rods 19 are fixedly installed on both the left and right sides inside the fixed housing 7-6, and these guide rods 19 movably pass through the adjusting frame 7-2. The guide rod 19 can provide auxiliary guidance for the movement of the adjustment frame 7-2 within the fixed housing 7-6, thereby effectively improving the stability of the adjustment frame 7-2. A reference point 20 is provided on the front side of the rice milling trough 4. A transparent scale plate 21 that cooperates with the reference point 20 is fixedly installed in the strip groove opened on the front side wall of the housing 1. Through the cooperation of the transparent scale plate 21 and the reference point 20, the operator can understand the height of the rice milling trough 4 within the housing 1, and thus more accurately determine the size of the rice milling gap formed between the rice milling trough 4 and the rice milling block 10.
[0039] When using this invention, rice grains are poured into the machine casing 1 through the feeding hopper 2. The rice grains fall into the rice milling gap formed between the rice milling trough 4 and the rice milling block 10. Then, the motor 8 is started. The motor 8 drives the rice milling block 10 to rotate through the rotating rod 9, thereby milling the rice grains. By utilizing the distribution of the three rice milling troughs 4 and the three rice milling blocks 10 within the machine casing 1, the rice grains can be milled progressively, gradually reducing the size of the rice grains. When the particle size of the rice grains after milling is too large and does not meet the requirements of that milling level, the milling process will be completed. During the standard milling process, the sieve plate 11 will screen out the rice grains, and the umbrella-shaped structure of the sieve plate 11 will allow the rice grains of unqualified size to fall into the spiral guide shell 13 through the through hole 12. The rice grains in the spiral guide shell 13 will roll into the multi-stage spiral elevator 14 through the feed port 16. Then, the multi-stage spiral elevator 14 can transport the rice grains of unqualified size upwards, and the feed port 15 will transport the rice grains of unqualified size back to the previous stage rice milling block 10 and the milling trough for re-milling.
[0040] When it is necessary to change the grinding gap of rice grains according to different processes or rice varieties, the threaded adjusting rod 7-5 can be rotated to move the adjusting frame 7-2 within the fixed shell 7-6. The adjusting frame 7-2 drives the moving rod 7-1 to move, and the moving rod 7-1 drives the guide block 7-3 to move. By utilizing the movement of the guide block 7-3 within the inclined guide groove 18, the height of the rice milling trough 4 within the machine casing 1 can be changed, thereby adjusting the grinding gap between the rice milling trough 4 and the rice milling block 10.
[0041] Compared with the prior art, the beneficial effects of this utility model are:
[0042] By combining the rice milling trough 4, motor 8, rotating rod 9, rice milling block 10, sieve plate 11, spiral guide shell 13 and multi-stage spiral elevator 14, not only can the gradual milling of rice grains be achieved, avoiding uneven grain size caused by one-time strong milling, but also rice grains with unqualified grain size can be re-milled to further ensure the uniformity of rice grain milling.
[0043] With the cooperation of the adjustment mechanism 7, the rice milling gap formed between the rice milling trough 4 and the rice milling block 10 can be adjusted to achieve different intensity of rice milling according to different processes or rice varieties.
[0044] With the cooperation of the transparent scale plate 21 and the reference point 20, the staff can understand the height of the rice milling trough 4 inside the machine casing 1, and thus more accurately determine the size of the rice milling gap formed between the rice milling trough 4 and the rice milling block 10.
[0045] The sealing ring 22 can improve the sealing between the rice milling trough 4 and the inner wall of the machine casing 1, and prevent rice grains from getting stuck in the gap between the rice milling trough 4 and the machine casing 1.
[0046] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A multi-stage rice milling device for rice noodle processing, comprising a casing (1), a feeding hopper (2) and a discharging hopper (3), wherein the upper part of the casing (1) is provided with the feeding hopper (2) and the bottom part of the casing (1) is provided with the discharging hopper (3). Its features are, It also includes: Rice milling trough (4), there are three rice milling troughs (4), all of which are movably installed inside the machine housing (1). Several sliding grooves (5) opened on the outer ring wall of the rice milling trough (4) are slidably installed in each of them. The sliding grooves (6) are fixedly installed on the inner wall of the machine housing (1). The machine housing (1) is provided with an adjustment mechanism (7) connected to the rice milling trough (4). The motor (8) is fixedly installed on the upper part of the housing (1). A rotating rod (9) is rotatably installed inside the housing (1) via a bearing. The output shaft of the motor (8) is connected to the rotating rod (9). Three rice grinding blocks (10) are fixedly sleeved on the rotating rod (9), and the rice grinding blocks (10) are located in the rice grinding trough (4). Three sieve plates (11) are fixedly installed in the machine housing (1) below the three rice milling troughs (4). The sieve plates (11) are rotatably mounted on the rotating rod (9) through bearings. Several through holes (12) are provided on the annular side wall of the machine housing (1) above the three sieve plates (11). The spiral guide shell (13) consists of three parts, all of which are fixedly sleeved on the machine housing (1). The spiral guide shell (13) is connected to the through hole (12). A multi-stage spiral elevator (14) is fixedly installed on the left side wall of the machine housing (1). A feeding port (15) that cooperates with the multi-stage spiral elevator (14) is opened on the left side wall of the machine housing (1) above the rice milling trough (4). A feeding port (16) that cooperates with the multi-stage spiral elevator (14) is provided on the spiral guide shell (13).
2. The multi-stage rice milling equipment for rice noodle processing according to claim 1, characterized in that: The adjustment mechanism (7) includes: Two movable rods (7-1) are respectively inserted into two movable slots (17) opened on the rice milling trough (4). The front ends of the two movable rods (7-1) pass through the machine casing (1) and are fixedly provided with adjustment frames (7-2). A fixed shell (7-6) is fixedly provided on the front side wall of the machine casing (1). The adjustment frame (7-2) is movably provided in the fixed shell (7-6). The guide blocks (7-3) are four in number and are fixedly installed on the left and right sides of the two moving rods (7-1). The guide blocks (7-3) are movably installed in the inclined guide groove (18) opened on the inner side wall of the moving groove (17). The fixed rod (7-4) is movably inserted in the moving groove (17). The rear end of the fixed rod (7-4) is fixedly connected to the inner wall of the housing (1), and the front end of the fixed rod (7-4) is movably inserted in the moving rod (7-1). The threaded adjusting rod (7-5) is inserted into the fixed housing (7-6) by means of a bearing, and the adjusting frame (7-2) is sleeved on the threaded adjusting rod (7-5) by means of a threaded rotation.
3. The multi-stage rice milling equipment for rice noodle processing according to claim 2, characterized in that: Guide rods (19) are fixedly installed on both the left and right sides inside the fixed shell (7-6), and the guide rods (19) are movably inserted on the adjusting frame (7-2).
4. The multi-stage rice milling equipment for rice noodle processing according to claim 1, characterized in that: The rice milling trough (4) has a reference point (20) on its front side, and a transparent scale plate (21) that matches the reference point (20) is fixedly installed in the strip groove opened on the front side wall of the casing (1).
5. The multi-stage rice milling equipment for rice noodle processing according to claim 1, characterized in that: The two annular grooves on the rice milling trough (4) are each fixedly provided with a sealing ring (22), and the sealing ring (22) is in movable contact with the inner wall of the casing (1).
6. The multi-stage rice milling equipment for rice noodle processing according to claim 1, characterized in that: The upper part of the rice milling trough (4) is set with an inner downward tilting structure, and the upper part of the rice milling block (10) is set with an outer downward tilting structure.