Uniform paving equipment for rice processing
By using flexible strips and an eccentric half-wheel vibration turning structure in rice processing equipment, the problem of uneven thickness caused by rice spillage at the edge of the pile was solved, improving the uniformity and quality consistency of rice drying and puffing.
Patent Information
- Application Number
- CN202511177332.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2025-11-18
AI Technical Summary
Existing rice leveling equipment causes rice to scatter at the edges of the pile during transport, resulting in uneven thickness and affecting the drying and puffing quality.
The rice pile is constructed using symmetrically distributed electrically controlled rotating rollers and flexible strips to block the sides of the rice pile. Combined with an eccentric half-wheel and impact components, the vibration and turning structure ensures the uniformity of the rice pile thickness. The turning part also turns and moves the upper and lower layers of the rice pile to improve the uniformity of drying.
This method achieves uniform thickness throughout the rice pile, reduces the heating difference between upper and lower layers, and improves the quality consistency of rice puffing processing.
Smart Images
Figure CN120970237A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of industrial food processing technology, and in particular to a uniform spreading device for rice processing. Background Technology
[0002] In the rice processing industry, especially in deep processing stages such as rice puffing, evenly spreading the rice is a crucial step. An evenly spread rice layer heats more evenly during drying, and spreading the rice significantly improves the subsequent puffing effect and the consistency of the final product quality. Currently, common rice spreading equipment usually adopts a structure of conveyor belt combined with a fixed flat plate. During operation, rice falls onto the conveyor belt through the feed hopper. As the conveyor belt moves, the flat plate fixed above the conveyor belt scrapes the upper surface of the rice pile to form a relatively flat rice layer. Then, the rice pile enters the drying zone (such as a microwave tunnel oven) for drying and puffing. Although such equipment can achieve basic spreading functions, in actual applications, when the rice is conveyed on the conveyor belt, the rice at the edge of the rice pile will scatter to the surrounding areas. This results in the rice layer being thicker in the middle than at the edge after spreading. This uneven thickness directly leads to the rice in the edge area being overheated or over-dried, while the central area is under-dried, thus affecting the quality of rice drying and puffing. Summary of the Invention
[0003] To overcome the drawback of rice scattering from the edges of a rice pile, this invention provides a uniform spreading device for rice processing.
[0004] The technical solution is as follows: A uniform leveling device for rice processing includes two electrically controlled rotating rollers symmetrically distributed and rotatably connected to a frame. The two electrically controlled rotating rollers are wound around a conveyor belt. The frame is provided with a feeding hopper. A feeding plate is installed on the frame away from the feeding hopper. A flat plate is fixed to the feeding hopper near the conveyor belt. The flat plate is located above the conveyor belt. The frame is provided with a drying component. The conveyor belt is fixed with symmetrically distributed flexible strips.
[0005] Preferably, the symmetrically distributed flexible strips are all embedded in the flat plate.
[0006] Preferably, the flexible strip is provided with a plurality of through holes arranged in an array.
[0007] Preferably, the frame is slidably connected to symmetrically distributed connecting frames, a first elastic element is fixedly connected between the connecting frames and the frame, the symmetrically distributed connecting frames are slidably connected to an impact element, the frame is equipped with symmetrically distributed motors, and the output shaft of the motor is fixedly connected to an eccentric half-wheel.
[0008] Preferably, the eccentric half-wheel is fixedly connected to a flexible half-ring, and when the eccentric half-wheel rotates, the eccentric half-wheel is used to press the adjacent connecting frame to move through the flexible half-ring.
[0009] Preferably, the impact member is fixedly connected to a leveling frame.
[0010] Preferably, the leveling frame is fixedly connected to an elastic plate, the elastic plate is fixedly connected to a flipping frame, and the flipping frame is provided with a plurality of flipping parts distributed at intervals.
[0011] Preferably, there are two drying components, and the leveling frame is located between the two drying components.
[0012] Preferably, the leveling frame is fixedly connected to a first trigger block, the impact member and the connecting frame are fixedly connected to a second elastic member, the frame is fixedly connected to a second trigger block, and the second trigger block is used to guide the first trigger block.
[0013] Preferably, the turning part is rotatably connected to a rotating rod, and the rotating rod is fixedly connected to several sets of shovels distributed at intervals, with two shovels symmetrically distributed in each set.
[0014] The beneficial effects of the present invention using the above structure are as follows: The present invention uses flexible strips to block the rice spread flat on both sides of the conveyor belt, thereby ensuring the uniformity of the thickness of the rice pile when it is piled up, thus improving the uniformity of rice drying and puffing, and improving the quality of the rice after puffing. When the rice pile passes through one drying unit, the upper and lower layers of the rice pile are turned over by vibration. Then the turned rice pile passes through another drying unit, reducing the heat difference between the upper and lower layers of the rice pile and improving the uniformity of drying between the upper and lower layers of the rice pile. In addition, all the turning parts are used to move the rice pile and turn the upper and lower layers of the rice pile, improving the drying effect of the rice pile. At the same time as the turning parts move the rice, the shovel plate scoops up the rice placed on the conveyor belt and turns the rice pile to exchange the rice between the upper and lower layers of the rice pile, thereby improving the uniformity of rice drying. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional sectional view of the frame of the present invention; Figure 3 This is a three-dimensional structural diagram of the entire flat plate of the present invention; Figure 4 This is a three-dimensional structural diagram of the eccentric half-wheel of the present invention; Figure 5 This is a three-dimensional structural diagram of the leveling frame of the present invention; Figure 6This is a three-dimensional structural diagram of the first trigger block and the second trigger block of the present invention; Figure 7 This is a three-dimensional structural diagram of the rotating rod and shovel plate of the present invention.
[0016] Explanation of reference numerals in the attached drawings: 1-Frame, 2-Electrically controlled rotating roller, 3-Conveyor belt, 4-Feed hopper, 401-Discharge plate, 5-Smoothing plate, 6-Drying component, 7-Flexible strip, 8-Through hole, 9-Connecting frame, 10-Impact component, 11-Motor, 12-Eccentric half-wheel, 1201-Flexible half-ring, 13-Smoothing frame, 14-Elastic plate, 15-Tilting frame, 1501-Tilting part, 16-First trigger block, 17-Second trigger block, 18-Rotating rod, 19-Shovel plate. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] Example 1 A uniform spreading device for rice processing, such as Figures 1-4 As shown, the system includes two electrically controlled rotating rollers 2, symmetrically distributed on the left and right and rotatably connected to the frame 1. The frame 1 is equipped with a control terminal (not shown in the figure), and the electrically controlled rotating rollers 2 are electrically connected to the control terminal. A conveyor belt 3 is wound around both of the two electrically controlled rotating rollers 2. The rotation of the two electrically controlled rotating rollers 2 drives the conveyor belt 3 to rotate clockwise, conveying the rice spread on the conveyor belt 3. A feed hopper 4 is located on the left side of the frame 1, and a discharge plate 401 is installed on the right side of the frame 1. The feed hopper 4 and the discharge plate 401 are located on the left and right sides of the conveyor belt 3, respectively. The feed hopper 4... A flat plate 5 is fixedly connected to the frame 1, which is located above the conveyor belt 3. The frame 1 is equipped with a drying component 6 that is electrically connected to the control terminal. The drying component 6 can be a microwave tunnel oven. The conveyor belt 3 is fixedly connected with flexible strips 7 that are symmetrically distributed front and back. The flexible strips 7 are used to block the rice spread on the conveyor belt 3. The symmetrically distributed flexible strips 7 are all embedded in the flat plate 5. The flexible strips 7 are provided with several through holes 8 arranged in an array. The size of the through holes 8 is smaller than the size of the rice. When drying the rice, the hot airflow passes through the through holes 8 to dry the rice at the part that is in contact with the flexible strips 7.
[0019] The specific working principle is as follows: When this device is needed to level rice, the operator activates two electrically controlled rotating rollers 2 via the control terminal. The two electrically controlled rotating rollers 2 together drive the conveyor belt 3 to rotate, and then the rice is filled into the feed hopper 4. The rice falls from the feed hopper 4 onto the conveyor belt 3. With the movement of the conveyor belt 3, the rice is conveyed. When the rice passes between the leveling plate 5 and the conveyor belt 3, the upper surface of the rice is leveled by the leveling plate 5. The conveyor belt 3 moves the leveled rice and it passes through the drying unit 6. The drying unit 6 dries and expands the rice. During the process of the conveyor belt 3 moving the rice, the flexible strips 7 on the front and rear sides block the rice on the front and rear sides of the rice laid on the conveyor belt 3, thereby ensuring the uniformity of the thickness of the rice in the middle and on the front and rear sides when it is piled up, thus improving the uniformity of the rice drying and expansion, and improving the quality of the rice after expansion processing.
[0020] When the conveyor belt 3 transports the puffed rice to the feeding plate 401, the rice on the conveyor belt 3 falls onto the feeding plate 401. The operator collects the rice on the feeding plate 401. When it is necessary to stop using this device, the operator collects the rice and finally shuts off the electrically controlled rotating roller 2 through the control terminal.
[0021] Example 2 Based on Example 1, such as Figure 2 and Figures 4-6 As shown, the frame 1 is slidably connected to two symmetrically distributed connecting frames 9. A first elastic element, which is a compression spring, is fixed between the connecting frames 9 and the frame 1. The symmetrically distributed connecting frames 9 are slidably connected to an impact element 10. The impact element 10 consists of a lower rectangular plate, several upper protrusions, and two symmetrically distributed connecting rods. When the impact element 10 moves up and down, it impacts the conveyor belt 3, causing the conveyor belt 3 to vibrate. The frame 1 is equipped with two symmetrically distributed motors 1. 1. The motor 11 is electrically connected to the control terminal. The output shaft of the motor 11 is fixedly connected to an eccentric half-wheel 12. When the output shaft of the motor 11 rotates, the output shaft of the motor 11 drives the eccentric half-wheel 12 to rotate. The eccentric half-wheel 12 is fixedly connected to a flexible half-ring 1201. When the eccentric half-wheel 12 rotates, the eccentric half-wheel 12 presses the adjacent connecting frame 9 to move through the flexible half-ring 1201. The first elastic element between the connecting frame 9 and the frame 1 deforms, so that the connecting frame 9 moves up and down reciprocally. The hardness of the flexible half-ring 1201 is less than the hardness of rice.
[0022] like Figure 1 and Figure 5 As shown, the impact component 10 is fixedly connected to a leveling frame 13, and there are two drying components 6. The leveling frame 13 is located between the two drying components 6, and the right side of the leveling frame 13 is closer to the feed plate 401 than the right side of the impact component 10.
[0023] like Figure 6and Figure 7 As shown, an elastic plate 14 is fixedly connected to the lower left side of the leveling frame 13. The elastic plate 14 is located directly above the impact member 10. The elastic coefficient of the elastic plate 14 is less than that of the conveyor belt 3. A flipping frame 15 is fixedly connected to the elastic plate 14. The flipping frame 15 is provided with several flipping parts 1501 distributed at intervals. The lower part of the flipping part 1501 is lower than the lower side of the right side of the leveling frame 13. When the flipping part 1501 moves downward and squeezes the conveyor belt 3, the flipping part 1501 and the flipping frame 15 are obstructed from moving upward, causing the elastic plate 14 to deform.
[0024] like Figure 5 and Figure 6 As shown, a first trigger block 16 is fixedly connected to the front side of the leveling frame 13, and a second elastic element, which is a tension spring, is fixedly connected between the impact member 10 and the connecting frame 9. A second trigger block 17 is fixedly connected to the frame 1. Both the first trigger block 16 and the second trigger block 17 are provided with inclined surfaces that are symmetrically distributed vertically. The inclined surface of the second trigger block 17 is used to guide the first trigger block 16. During the vertical movement of the first trigger block 16, the first trigger block 16 moves back and forth along the inclined surface of the second trigger block 17.
[0025] The specific working principle is as follows: During the transport of rice on conveyor belt 3, after the rice is conveyed between the two drying units 6, the operator starts the two motors 11 through the control terminal. The output shaft of motor 11 drives the eccentric half-wheel 12 to rotate, which in turn drives the flexible half-ring 1201 to rotate counterclockwise. The flexible half-ring 1201 compresses the connecting frame 9, causing the connecting frame 9 to move downwards first. The first elastic element between the connecting frame 9 and the frame 1 is compressed, and the connecting frame 9 drives the impact element 10 to move downwards. After the eccentric half-wheel 12 rotates 180°, the connecting frame... The first elastic element between the 9 and the frame 1 is reset, the connecting frame 9 moves upward and resets, the connecting frame 9 drives the impact element 10 to move upward, the impact element 10 impacts the conveyor belt 3 to make the rice on the conveyor belt 3 vibrate, so that the upper and lower layers of the rice spread on the conveyor belt 3 move. When the rice pile passes the left drying element 6, the vibration makes the upper and lower layers of the rice pile turn over. Then the turned rice pile passes the right drying element 6, reducing the heat difference between the upper and lower layers of the rice pile and improving the uniformity of drying of the upper and lower layers of the rice pile.
[0026] During the reciprocating motion of the connecting frame 9 and the impact member 10, the impact member 10 drives the leveling frame 13 to move up and down. The leveling frame 13, through the elastic plate 14, drives the flipping frame 15 to move up and down. The flipping frame 15 drives all the flipping parts 1501 to move up and down. During the downward movement of the flipping parts 1501, the flipping parts 1501 insert into the rice pile. Furthermore, during the downward movement of the leveling frame 13, the first trigger block 16 moves downward. The first trigger block 16 moves along the upper inclined surface of the second trigger block 17. The first trigger block 16 drives the leveling frame 13 to move backward, and the leveling frame 13 drives the impact member 10 to move backward, impacting... The second elastic element between component 10 and connecting frame 9 is stretched. The leveling frame 13 drives all the turning parts 1501 to move backward through the elastic plate 14 and the turning frame 15. When the first trigger block 16 moves to the lower side of the second trigger block 17, the second elastic element between impact component 10 and connecting frame 9 is reset. The first trigger block 16 moves forward along the lower slope of the second trigger block 17. During this process, all the turning parts 1501 are located in the rice pile. As all the turning parts 1501 move downward and back and forth, all the turning parts 1501 turn the rice pile and turn the upper and lower layers of the rice pile to improve the drying effect of the rice pile.
[0027] During the conveyor belt 3's transport of rice, the rice pile after being turned over moves to the lower right side of the leveling frame 13. As the leveling frame 13 moves up and down and back and forth, the right side of the leveling frame 13 flattens and smooths the rice. Since the hardness of the flexible semi-ring 1201 is less than that of the rice, when the leveling frame 13 flattens the rice, the flexible semi-ring 1201 deforms under pressure when the rice is squeezed. The rotation axis of the leveling frame 13 relative to the eccentric half-wheel 12 moves upward to reduce the probability of the rice being crushed by the leveling frame 13.
[0028] When it is necessary to stop using this device, the operator collects the rice and finally shuts off the electrically controlled rotating roller 2 and the two motors 11 via the control terminal.
[0029] Example 3 Based on Example 2, such as Figure 7 As shown, the turning part 1501 is rotatably connected to a rotating rod 18, and the rotating rod 18 is fixedly connected to several sets of shovels 19 spaced apart on the left and right. Each set of shovels 19 has two symmetrically distributed vertically, and the weight of the lower shovel 19 is greater than the weight of the upper shovel 19. During the downward and backward movement of the turning part 1501, the shovels 19 squeeze the conveyor belt 3 and drive the rotating rod 18 to rotate counterclockwise, wherein the rotation angle is as follows: Figure 1Taking the left view as an example, during the upward and forward movement of the flipping part 1501, the rotating rod 18 is affected by the gravity of the lower shovel plate 19. The rotating rod 18 drives the shovel plate 19 to rotate clockwise to reset, shovel up the rice placed on the conveyor belt 3, and flip the rice pile to exchange the rice in the upper and lower layers of the rice pile, thereby improving the uniformity of rice drying.
[0030] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.
Claims
1. A uniform leveling device for rice processing, characterized in that, It includes two electrically controlled rotating rollers (2) that are symmetrically distributed and rotatably connected to the frame (1). The two electrically controlled rotating rollers (2) are together wound around the conveyor belt (3). The frame (1) is provided with a feed hopper (4). A discharge plate (401) is installed on the frame (1) away from the feed hopper (4). A flat plate (5) is fixed to the feed hopper (4) near the conveyor belt (3). The flat plate (5) is located above the conveyor belt (3). The frame (1) is provided with a drying component (6). The conveyor belt (3) is fixed with symmetrically distributed flexible strips (7).
2. The uniform leveling device for rice processing according to claim 1, characterized in that, The symmetrically distributed flexible strips (7) are all embedded in the flat plate (5).
3. The uniform leveling device for rice processing according to claim 2, characterized in that, The flexible strip (7) is provided with a plurality of through holes (8) arranged in an array.
4. The uniform leveling device for rice processing according to claim 1, characterized in that, The frame (1) is slidably connected to symmetrically distributed connecting frames (9), and a first elastic element is fixed between the connecting frames (9) and the frame (1). The symmetrically distributed connecting frames (9) are slidably connected to an impact element (10). The frame (1) is equipped with symmetrically distributed motors (11), and an eccentric half-wheel (12) is fixed to the output shaft of the motor (11).
5. The uniform leveling device for rice processing according to claim 4, characterized in that, The eccentric half-wheel (12) is fixedly connected to a flexible half-ring (1201). When the eccentric half-wheel (12) rotates, the eccentric half-wheel (12) is used to press the adjacent connecting frame (9) to move through the flexible half-ring (1201).
6. The uniform leveling device for rice processing according to claim 5, characterized in that, The impact member (10) is fixedly connected to a leveling frame (13).
7. The uniform leveling device for rice processing according to claim 6, characterized in that, The leveling frame (13) is fixedly connected to an elastic plate (14), and the elastic plate (14) is fixedly connected to a flipping frame (15). The flipping frame (15) is provided with a plurality of flipping parts (1501) spaced apart.
8. The uniform leveling device for rice processing according to claim 7, characterized in that, The number of drying components (6) is two, and the leveling frame (13) is located between the two drying components (6).
9. A uniform leveling device for rice processing according to claim 8, characterized in that, The leveling frame (13) is fixedly connected to a first trigger block (16), the impact member (10) is fixedly connected to the connecting frame (9) with a second elastic member, and the frame (1) is fixedly connected to a second trigger block (17). The second trigger block (17) is used to guide the first trigger block (16).
10. A uniform leveling device for rice processing according to claim 7, characterized in that, The flipping part (1501) is rotatably connected to a rotating rod (18), and the rotating rod (18) is fixedly connected to several sets of shovels (19) spaced apart, with two symmetrically distributed shovels (19) in each set.