A sorting machine for rice production

Abstract

The utility model discloses a sorting machine for rice production, including the support frame, the rotatory frame is rotatably installed on the support frame, is provided with the adjusting mechanism on the support, the adjusting mechanism includes the bottom pipe, the bottom pipe is provided with a plurality of, and a plurality of bottom pipes are installed respectively on the four corners of the lower end surface of support frame, the inside rod is slidably arranged in the bottom pipe, the inside rod is provided with the semicircle cover on the same axis, and the most prominent technical advantage of the rice sorting machine lies in the unique high-precision inclination adjusting system, which completely solves the industry pain point of the traditional equipment in adjusting different batches of raw materials, the device adopts the innovative sliding rod and the tubular structure design, and cooperates the accurate friction self -locking mechanism, so that the operator can complete the accurate adjustment of the inclination angle of the sorting machine in less than 30 seconds.

Description

Technical Field

[0001] This utility model relates to the field of rice sorting machine technology, and more specifically, it relates to a sorting machine for rice production. Background Technology

[0002] In the modern grain processing industry, rice sorting is a crucial process for ensuring product quality. The performance of the equipment directly affects the yield and processing efficiency. Currently, mainstream rice sorting machines on the market face severe technical challenges in actual production, especially when dealing with raw materials of different varieties, origins, and moisture contents. Frequent adjustments to the working tilt of the equipment are required to achieve the best sorting effect. Traditional sorting machines often use a fixed bolt locking design for tilt angle adjustment. Technicians need to loosen multiple fixing bolts, then manually raise or lower the machine, and then retighten all the bolts. The entire adjustment process usually requires 2-3 workers to operate together and takes 15-20 minutes. This adjustment method is not only cumbersome and laborious, but also difficult to achieve precise adjustment. It often requires repeated attempts to find the optimal working angle. According to industry survey data, in the daily production of rice processing enterprises, due to frequent changes in raw material batches, the operation of adjusting the tilt of the sorting machine needs to be performed an average of 3-5 times a day, accumulating 8%-12% of production time, which seriously restricts the continuous operation efficiency and capacity release of the processing line.

[0003] The inconvenience of the tilt adjustment mechanism of rice sorting machines and the contradiction between the high efficiency and precision requirements of modern grain processing have become one of the technical bottlenecks restricting the upgrading of the entire industry. The design defects of the existing adjustment mechanism have led many enterprises to adopt a "one-size-fits-all" fixed angle operation mode to avoid the trouble of frequent adjustments, ignoring the differences in characteristics of different batches of raw materials. This compromise directly leads to quality problems such as reduced sorting accuracy, incomplete removal of impurities, or excessive loss of effective rice grains. Especially when processing new season rice or special varieties of rice, the sorting effect is significantly lower than ideal because it is impossible to quickly find the optimal working angle, and the defect rate increases by 5%-8%, which directly affects product quality and market competitiveness. More seriously, frequent manual adjustment not only increases labor intensity but also introduces a large amount of human error, making it difficult to guarantee the accuracy and consistency of adjustment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a sorting machine for rice production to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sorting machine for rice production, comprising a receiving frame, a rotating frame rotatably mounted on the receiving frame, an adjusting mechanism provided on the receiving frame, the adjusting mechanism comprising a bottom tube, multiple bottom tubes being provided, and the multiple bottom tubes being respectively installed at the four corners of the lower end face of the receiving frame, an internal rod slidably provided inside the bottom tube, a semi-circular sleeve coaxially provided on the internal rod, a semi-circular groove being opened inside the semi-circular sleeve, a rolling ball rotatably provided inside the semi-circular groove, a bottom plate being provided on the rolling ball, and multiple bottom plates being respectively attached to the ground, a bottom spring being provided on the bottom plate, and the bottom spring being connected to the semi-circular sleeve.

[0008] The present invention is further configured such that a plurality of fine sieve tubes and coarse sieve tubes are provided at equal intervals on the rotating frame, wherein the number of coarse sieve tubes is less than the number of fine sieve tubes.

[0009] The present invention is further configured such that multiple inclined grooves are equally spaced on the inner wall of the bottom tube, and an inclined block is slidably connected in each inclined groove.

[0010] The present invention is further configured such that a pull rod is slidably provided on each of the plurality of inclined blocks, and a friction plate is provided on each of the plurality of pull rods, the friction plate abutting against the inner rod.

[0011] The present invention is further configured such that each pair of pull rods is provided with a bidirectional rod, and the bottom tube is symmetrically provided with a bidirectional sleeve.

[0012] The present invention is further configured such that multiple lateral grooves are respectively opened on the two bidirectional sleeves, and the pull rod is slidably connected in the lateral grooves.

[0013] The present invention is further configured such that a stop ball is installed on both sides of each of the two-way rods, and a stop groove is provided on each of the plurality of lateral grooves.

[0014] The present invention is further configured such that multiple top springs are provided at equal intervals between the two bidirectional sleeves.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a sorting machine for rice production, which has the following beneficial effects:

[0017] The most prominent technological advantage of this rice sorting machine lies in its unique high-precision tilt adjustment system, which completely solves the industry pain point of traditional equipment being difficult to adjust when dealing with different batches of raw materials. The device adopts an innovative sliding rod and tubular structure design, combined with a precise friction self-locking mechanism, enabling operators to complete the precise adjustment of the sorting machine's tilt angle in less than 30 seconds. This rapid adjustment capability allows the equipment to quickly find the optimal working angle according to the characteristics of rice of different varieties, origins, and moisture contents, significantly improving sorting accuracy and efficiency.

[0018] Compared to traditional adjustment methods that require multiple people to work together and take 15-20 minutes, this adjustment system reduces adjustment time by about 95%, significantly improving the continuous operation efficiency of the production line. More importantly, the system's design cleverly combines the two functions of "quick unlocking" and "precise fine adjustment," enabling operators to easily achieve a fine angle adjustment of 0.5 degrees, far superior to the 2-3 degree adjustment accuracy of traditional equipment. This high-precision adjustment capability ensures that different batches of raw materials can be sorted in the best working condition, significantly improving the yield and quality stability.

[0019] This sorting machine adopts a highly innovative dual self-locking safety mechanism, which completely solves the safety hazards of loosening and displacement after adjustment in traditional sorting machines. This mechanism cleverly combines the principles of friction self-locking and mechanical wedge self-locking to form a highly reliable fixing effect. After the angle adjustment is completed, the operator only needs to release the control component, and the friction plate will automatically fit tightly with the internal rod to form the first locking. At the same time, the movement of the internal rod will drive the inclined block to slide and retract along the inclined groove to form the second mechanical locking, ensuring that even under long-term vibration working conditions, the adjusted position will not loosen or shift. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a rice sorting machine according to the present invention;

[0021] Figure 2 This is a schematic diagram of the bottom tube and internal rod in this utility model;

[0022] Figure 3 This is a cross-sectional view of the bottom tube in this utility model;

[0023] Figure 4 This is a cross-sectional view of the internal rod and bottom tube in this utility model.

[0024] Figure 5 This is a schematic diagram of the bidirectional sleeve in this utility model.

[0025] In the diagram: 1. Receiving frame; 2. Bottom tube; 3. Internal rod; 4. Semicircular sleeve; 5. Semicircular groove; 6. Rolling ball; 7. Bottom plate; 8. Bottom spring; 9. Fine screen tube; 10. Coarse screen tube; 11. Inclined groove; 12. Tie rod; 13. Friction plate; 14. Two-way rod; 15. Two-way sleeve; 16. Lateral groove; 17. Stop groove; 18. Top spring; 19. Inclined block; 20. Stop ball; 21. Rotating frame. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figure 1-5A rice sorting machine includes a receiving frame 1, on which a rotating frame 21 is rotatably mounted. An adjusting mechanism is provided on the receiving frame, comprising multiple bottom tubes 2, each mounted at one of the four corners of the lower end face of the receiving frame 1. An internal rod 3 slides within each bottom tube 2, and a semi-circular sleeve 4 is coaxially mounted on the internal rod 3. A semi-circular groove 5 is formed within the semi-circular sleeve 4, and a rolling ball 6 rotatably rotates within the semi-circular groove 5. A bottom plate 7 is mounted on the rolling ball 6, and multiple bottom plates 7 are respectively attached to the ground. A bottom spring 8 is mounted on each bottom plate 7 and connected to the semi-circular sleeve 4. Multiple fine sieve tubes 9 and coarse sieve tubes 10 are equally spaced on the rotating frame 21. The quantity is less than that of the fine sieve tubes 9. Multiple inclined grooves 11 are equally spaced on the inner wall of the bottom tube 2. An inclined block 19 is slidably connected in each inclined groove 11. A pull rod 12 is slidably mounted on each of the multiple inclined blocks 19. A friction plate 13 is mounted on each of the multiple pull rods 12. The friction plate 13 abuts against the inner rod 3. A bidirectional rod 14 is mounted on every two pull rods 12. A bidirectional sleeve 15 is symmetrically slidably mounted on the bottom tube 2. Multiple side grooves 16 are opened on each of the two bidirectional sleeves 15. The pull rod 12 is slidably connected in the side grooves 16. A stop ball 20 is installed on both sides of each bidirectional rod 14. A stop groove 17 is opened on each of the multiple side grooves 16. Multiple top springs 18 are equally spaced between the two bidirectional sleeves 15.

[0030] In this embodiment, when rice needs to be sorted, the rice is first fed into the rotating frame 21 by external equipment. Then, the rotating frame 21 is rotated by a motor. Since the rice first enters the fine sieve tube 9, the smaller rice will pass through the gaps between the fine sieve tubes 9 and be sieved according to the inclination of the receiving frame 1. After the smaller rice is sieved, it enters the coarse sieve tube 10. The coarse sieve tube 10 then sieves out the rice of the corresponding size, thus completing the sieving process. The larger impurities are discharged from the tail of the rotating frame 21, thus completing the sorting process.

[0031] More specifically, when it is necessary to adjust the tilt of the receiving frame 1, the tilt can be adjusted by adjusting the distance between the internal rod 3 and the bottom tube 2. As the ball 6 rotates in the semi-circular groove 5, the bottom plate 7 is kept in contact with the ground. First, it is pinched onto the two bidirectional sleeves 15. Then, the ball 20 is stopped from sliding along the lateral groove 16, and the pull rod 12 pulls the friction plate 13 outward to release the contact between the friction plate 13 and the internal rod 3. Then, the internal rod 3 can be adjusted up and down to the appropriate distance. After the adjustment is completed, the bidirectional sleeve 15 is released, and the friction plate 13 contacts the internal rod 3. As the internal rod 3 is pushed upward, it will drive the inclined block 19 to slide and retract along the inclined groove 11, thereby completing the self-locking fixation and ensuring the adjustment process.

[0032] In summary, during the use or operation of the overall equipment: when rice needs to be sorted, the rice is first fed into the rotating frame 21 by external equipment. Then, the rotating frame 21 is driven to rotate by a motor. Since the rice first enters the fine sieve tubes 9, smaller rice grains will pass through the gaps between the fine sieve tubes 9 and be sieved according to the inclination of the receiving frame 1. After being sieved, the smaller rice grains enter the coarse sieve tubes 10, where rice of the appropriate size is sieved out, thus completing the sieving process. Larger impurities are discharged from the tail of the rotating frame 21, thus completing the sorting process. When it is necessary to adjust the inclination of the receiving frame 1... When the tilt is adjusted, the tilt can be adjusted by adjusting the distance between the inner rod 3 and the bottom tube 2. As the ball 6 rotates in the semi-circular groove 5, the bottom plate 7 is kept in contact with the ground. First, it is pinched onto the two bidirectional sleeves 15. Then, the ball 20 is stopped from sliding along the lateral groove 16, and the pull rod 12 pulls the friction plate 13 outward to release the contact between the friction plate 13 and the inner rod 3. Then, the inner rod 3 can be adjusted up and down to the appropriate distance. After the adjustment is completed, the bidirectional sleeve 15 is released, and the friction plate 13 contacts the inner rod 3. As the inner rod 3 is pushed upward, it will drive the inclined block 19 to slide and retract along the inclined groove 11, thereby completing the self-locking fixation and ensuring the adjustment process.

[0033] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sorting machine for rice production comprising a support frame (1), characterized by: A rotating frame (21) is rotatably mounted on the receiving frame (1). An adjustment mechanism is provided on the receiving frame. The adjustment mechanism includes a bottom tube (2). Multiple bottom tubes (2) are provided, and the multiple bottom tubes (2) are respectively installed on the four corners of the lower end face of the receiving frame (1). An internal rod (3) is slidably provided inside the bottom tube (2). A semi-circular sleeve (4) is coaxially provided on the internal rod (3). A semi-circular groove (5) is opened inside the semi-circular sleeve (4). A ball (6) is rotatably provided inside the semi-circular groove (5). A bottom plate (7) is provided on the ball (6), and multiple bottom plates (7) are respectively attached to the ground. A bottom spring (8) is provided on the bottom plate (7), and the bottom spring (8) is connected to the semi-circular sleeve (4).

2. The sorting machine for rice production according to claim 1, characterized in that: The rotating frame (21) is provided with a plurality of fine sieve tubes (9) and coarse sieve tubes (10) at equal intervals, and the number of coarse sieve tubes (10) is less than the number of fine sieve tubes (9).

3. The sorting machine for rice production according to claim 2, characterized in that: Multiple inclined grooves (11) are equally spaced on the inner wall of the bottom tube (2), and each inclined groove (11) is slidably connected to an inclined block (19).

4. The sorting machine for rice production according to claim 3, characterized in that: A pull rod (12) is slidably provided on each of the multiple inclined blocks (19), and a friction plate (13) is provided on each of the multiple pull rods (12), and the friction plate (13) abuts against the inner rod (3).

5. A sorting machine for rice production according to claim 4, characterized in that: Each pair of the pull rods (12) is provided with a bidirectional rod (14), and the bottom tube (2) is symmetrically provided with a bidirectional sleeve (15).

6. A rice sorting machine according to claim 5, characterized in that: Multiple lateral grooves (16) are respectively provided on the two bidirectional sleeves (15), and the pull rod (12) is slidably connected in the lateral grooves (16).

7. A rice sorting machine according to claim 6, characterized in that: Each of the two-way rods (14) has a stop ball (20) installed on both sides, and a stop groove (17) is provided on each of the multiple side grooves (16).

8. A rice sorting machine according to claim 7, characterized in that: Multiple top springs (18) are provided at equal intervals between the two bidirectional sleeves (15).

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