Citrus processing young fruit grading and screening device
By designing an assembly frame and an anti-blocking mechanism, the grading and sorting device for young citrus fruits solves the clogging problem during sorting by utilizing the staggered movement of movable and repetitive components, thereby improving the grading and sorting rate and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NUJIANG ANGDA BIOTECHNOLOGY DEV CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
In existing citrus fruit sorting devices, during the use of the citrus fruit grading and screening device, when the citrus fruit passes through the aperture of the driven roller for screening, it is easy to accumulate on one side of the roller and at the connection point with the connecting guide plate, causing the aperture to be blocked and affecting the grading and screening rate.
A grading and screening device for young citrus fruits was designed, comprising an assembly frame, a grading and screening mechanism, and an anti-blocking mechanism. Through the cooperation of movable and reciprocating components, and utilizing a return spring and gear meshing transmission, the guide frame is moved in a staggered manner to assist in the unloading of young fruits and prevent blockage.
It effectively prevents pore blockage, improves the speed and efficiency of grading and screening, and enables the step-by-step screening and smooth feeding of young citrus fruits.
Smart Images

Figure CN224208574U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of citrus processing technology, specifically relating to a grading and screening device for young citrus fruits. Background Technology
[0002] During the production and processing of young citrus fruits, they need to be graded and screened according to their different sizes. At this time, grading and screening devices are used. Among the existing types of screening devices, one type uses the fruit's own weight in conjunction with rotating rollers with different apertures to achieve grading and screening of the fruit.
[0003] In the use of existing citrus fruit grading and screening devices, taking the selected device as an example, when citrus fruits pass through the aperture of the driven roller for screening, they inevitably accumulate at the connection between the roller and the connecting guide plate. The accumulated citrus fruits may block the designated aperture area, causing partial aperture blockage and significantly affecting the grading and screening rate. Utility Model Content
[0004] (1) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a grading and screening device for young citrus fruits. This device aims to solve the problem that when young citrus fruits are screened through the apertures of a driven roller, they inevitably accumulate at the connection between the roller and the connecting guide plate. The accumulated young citrus fruits may block the designated aperture areas, causing partial aperture blockage and significantly affecting the grading and screening rate.
[0006] (2) Technical solution
[0007] To solve the above-mentioned technical problems, this utility model provides a grading and screening device for citrus processing young fruit, including an assembly frame. The middle part of the assembly frame is provided with a grading and screening mechanism, and an anti-blocking mechanism is jointly installed in the middle and on one side of the assembly frame. The lower section of the assembly frame is provided with a feeding area on one side, and a conveyor belt is installed in the middle of the feeding area. The anti-blocking mechanism includes a movable component and a connecting guide frame for one of its components. The movable component is located in the middle of the assembly frame. A preset groove is opened on one side of the assembly frame, and a side mounting frame is fixed on the other side of the assembly frame. A reciprocating component is installed in the middle of the side mounting frame.
[0008] Furthermore, the movable component includes a fixed plate, which is disposed in the middle of the assembly frame. A movable groove is provided above the multiple fixed plates, and a guide rack is slidably provided on the inner edge of the movable groove. One end of the multiple guide racks is connected to a connecting guide. A guide groove for the connecting guide to move is provided on the same side of the assembly frame and the side assembly frame.
[0009] Furthermore, a movable guide connection is formed between the guide rack and the movable slot opened above the fixed plate.
[0010] Furthermore, the repetitive assembly includes a return spring, which is disposed on one side of the connecting guide. A partition is fixedly provided on one side of the middle portion of the side mounting bracket, and a second drive motor is installed on one side of the partition. The output end of the second drive motor is connected to a transmission rod, and half gears are disposed around the periphery of the transmission rod. A rack is fixedly disposed below the connecting guide.
[0011] Furthermore, the reset springs are evenly spaced along one side of the connecting guide.
[0012] Furthermore, the rack and half gears are provided in three sets, and the rack and the corresponding half gears are connected by meshing transmission.
[0013] Furthermore, the grading and screening mechanism includes a fixed frame, which is disposed on one side of the assembly frame. A first drive motor is installed in the middle of the multiple fixed frames, and the output ends of the multiple first drive motors are connected to screening rollers. The periphery of the multiple screening rollers is provided with holes and grooves.
[0014] Furthermore, the screening rollers are provided in three parts, and the holes and grooves around the three screening rollers are of different sizes.
[0015] (3) Beneficial effects
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] When too many young citrus fruits accumulate at the contact points between the three sets of screening rollers and the guide racks on their respective sides, the feeding rate may be affected. At this time, the operator can intermittently start the second drive motor to rotate the half gear connected to its end. As a result, the rack meshing with the three gears will synchronously move the three guide racks connected to the same connecting guide frame. When the smooth surface of the half gear cannot mesh with the rack, the reset springs on one side of the connecting guide frame will move the guide frame and the three guide racks repeatedly in an elastic manner. Thus, the three guide racks can move in a staggered manner with the screening rollers on their respective sides, thereby vibrating the young fruits on the guide racks and thus assisting in the feeding operation of the young fruits accumulated between the guide racks and the screening rollers.
[0018] Workers can place young citrus fruits into the assembly rack through the entrance plate on one side. Simultaneously, three first drive motors are started to rotate the screening rollers corresponding to different slot sizes. The slots on the three screening rollers are arranged in ascending order of size, thereby achieving step-by-step screening of young citrus fruits of different sizes. The young fruits that enter the corresponding slots will fall onto the conveyor belt in the middle of the feeding area and be transported by the conveyor belt to the corresponding feeding point. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 A top-down view of a partial structure of the grading and screening mechanism;
[0022] Figure 3 for Figure 1 Schematic diagram of the structure at point A in the middle;
[0023] Figure 4 for Figure 1 Schematic diagram of the structure at point B.
[0024] The labels in the attached diagram are as follows: 1. Assembly frame; 2. Grading and screening mechanism; 21. Fixed frame; 22. First drive motor; 23. Screening roller; 24. Groove; 3. Anti-blocking mechanism; 31. Movable component; 311. Fixed plate; 312. Movable groove; 313. Guide rack; 314. Connecting guide; 315. Guide groove; 32. Preset groove; 33. Side mounting frame; 34. Repeating component; 341. Return spring; 342. Partition plate; 343. Second drive motor; 344. Transmission rod; 345. Half gear; 346. Rack; 4. Unloading area; 5. Conveyor belt. Detailed Implementation
[0025] 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.
[0026] This specific embodiment is a grading and screening device for young citrus fruits, and its structural schematic diagram is shown below. Figures 1 to 4 As shown, the assembly includes an assembly frame 1, a grading and screening mechanism 2 in the middle section of the assembly frame 1, and an anti-blocking mechanism 3 jointly installed in the middle and on one side of the assembly frame 1. A feeding area 4 is provided on one side of the lower section of the assembly frame 1, and a conveyor belt 5 is installed in the middle of the feeding area 4. The grading and screening mechanism 2 includes a fixed frame 21, which is located on one side of the assembly frame 1. A first drive motor 22 is installed in the middle of multiple fixed frames 21, and the output ends of multiple first drive motors 22 are connected to screening rollers 23. The periphery of multiple screening rollers 23 is provided with slots 24. There are three screening rollers 23, and the size of the slots 24 around the three screening rollers 23 is different. The staff can put the young citrus fruits into the inlet plate on one side of the assembly rack 1 and start the three first drive motors 22 at the same time to make the screening rollers 23 corresponding to the different slot sizes 24 rotate. The slots 24 of the three screening rollers 23 are arranged in order from small to large, so that the young citrus fruits of different sizes can be screened step by step. The young fruits that enter the corresponding slots 24 will fall down to the top of the conveyor belt 5 in the middle of the feeding area 4 and be transported to the corresponding feeding point by the conveyor belt 5.
[0027] The anti-blocking mechanism 3 includes a movable component 31 and a component connecting guide 314. The movable component 31 is located in the middle of the assembly frame 1. The movable component 31 includes a fixed plate 311, which is also located in the middle of the assembly frame 1. A movable groove 312 is provided above the multiple fixed plates 311, and a guide rack 313 is slidably provided on the inner edge of the movable groove 312. One end of the multiple guide racks 313 is connected to the connecting guide 314. A guide groove 315 for the connecting guide 314 to move is provided on the same side of the assembly frame 1 and the side assembly frame 33. The guide rack 313 and the fixed plate 311 are located above the fixed plate 311. The movable slots 312 form a movable guide connection. A preset slot 32 is provided on one side of the assembly frame 1, and a side mounting frame 33 is fixed on the other side of the assembly frame 1. A repetitive assembly 34 is installed in the middle of the side mounting frame 33. The repetitive assembly 34 includes a return spring 341, which is distributed on one side of the connecting guide frame 314. The return springs 341 are evenly distributed along one side of the connecting guide frame 314. A partition 342 is fixed on one side of the middle of the side mounting frame 33, and a second drive motor 343 is installed on one side of the partition 342. The output end of the second drive motor 343 is connected to a transmission. The transmission rod 344 has half gears 345 distributed around its periphery. A rack 346 is fixedly arranged below the connecting guide frame 314. There are three sets of racks 346 and half gears 345, and the racks 346 and their corresponding half gears 345 are meshed. When too many young citrus fruits accumulate at the contact points between the three sets of screening rollers 23 and the guide frame 313 on their respective sides, it may affect the feeding rate. At this time, the operator can intermittently start the second drive motor 343 to rotate the half gear 345 connected to its end. This will cause the rack 346 meshing with the three gears to synchronously drive... The three guide racks 313 connected to the same connecting guide frame 314 are displaced. When the smooth surface of the half gear 345 cannot mesh with the rack 346, the reset spring 341 on one side of the connecting guide frame 314 will carry the guide frame and the three guide racks 313 to repeatedly elastically displace. Thus, the three guide racks 313 can move in a staggered manner with the screening roller 23 on their respective sides, thereby vibrating the young fruits on the guide racks 313, so as to assist in the unloading operation of the young fruits accumulated between the guide racks 313 and the screening roller 23.
[0028] Working principle: Workers can place young citrus fruits into the assembly rack 1 through the inlet plate on one side. Simultaneously, three first drive motors 22 are started to rotate the screening rollers 23 corresponding to different slot sizes 24. The slots 24 on the three screening rollers 23 are arranged in ascending order of size, thus achieving step-by-step screening of young citrus fruits of different sizes. Fruits entering the corresponding slots 24 will fall onto the conveyor belt 5 in the middle of the feeding area 4 and be transported to the corresponding feeding point by the conveyor belt 5. If too many young citrus fruits accumulate at the contact points between the three sets of screening rollers 23 and the guide racks 313 on their respective sides, it may affect the feeding rate. At this time, workers can intermittently start the second drive motor 343 to adjust the feeding speed. When the half gear 345 connected to the end rotates, the rack 346 that meshes with it will synchronously move the three guide racks 313 connected to the same connecting guide frame 314. When the smooth surface of the half gear 345 cannot mesh with the rack 346, the return spring 341 on one side of the connecting guide frame 314 will move the guide frame and the three guide racks 313 repeatedly in an elastic manner. Thus, the three guide racks 313 can move in a staggered manner with the screening rollers 23 on their respective sides, thereby vibrating the young fruits on the guide racks 313 and thus assisting in the unloading of the young fruits accumulated between the guide racks 313 and the screening rollers 23.
[0029] All technical features in this embodiment can be freely combined according to actual needs.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A grading and screening device for young citrus fruits, comprising an assembly frame (1), characterized in that, The assembly frame (1) is provided with a grading and screening mechanism (2) in the middle part, and an anti-blocking mechanism (3) is jointly installed in the middle and on one side of the assembly frame (1). The lower section of the assembly frame (1) is provided with a feeding area (4), and a conveyor belt (5) is installed in the middle of the feeding area (4). The anti-blocking mechanism (3) includes a movable component (31) and a component connecting guide (314). The movable component (31) is located in the middle of the assembly frame (1). A preset groove (32) is opened on one side of the assembly frame (1), and a side mounting frame (33) is fixed on the other side of the assembly frame (1). A repetitive component (34) is installed in the middle of the side mounting frame (33).
2. The citrus processing young fruit grading and screening device according to claim 1, characterized in that, The movable component (31) includes a fixed plate (311), and the fixed plate (311) is disposed in the middle of the assembly frame (1). A movable groove (312) is provided above the multiple fixed plates (311), and a guide rack (313) is slidably provided on the inner edge of the movable groove (312). One end of the multiple guide racks (313) is connected to a connecting guide (314). A guide groove (315) for the connecting guide (314) to move is provided on the same side of the assembly frame (1) and the side mounting frame (33).
3. The citrus processing young fruit grading and screening device according to claim 2, characterized in that, The guide rack (313) and the movable slot (312) opened above the fixed plate (311) form a movable guide connection.
4. The citrus processing young fruit grading and screening device according to claim 1, characterized in that, The repetitive assembly (34) includes a return spring (341), which is located on one side of the connecting guide (314). A partition (342) is fixed on one side of the middle part of the side mounting bracket (33), and a second drive motor (343) is installed on one side of the partition (342). The output end of the second drive motor (343) is connected to a transmission rod (344), and half gears (345) are provided around the transmission rod (344). A rack (346) is fixedly provided below the connecting guide (314).
5. A citrus processing young fruit grading and screening device according to claim 4, characterized in that, The reset springs (341) are evenly spaced along one side of the connecting guide (314).
6. The citrus processing young fruit grading and screening device according to claim 4, characterized in that, The rack (346) and the half gear (345) are provided in three sets, and the rack (346) and the corresponding half gear (345) are meshed and connected.
7. The citrus processing young fruit grading and screening device according to claim 1, characterized in that, The grading and screening mechanism (2) includes a fixed frame (21), and the fixed frame (21) is disposed on one side of the assembly frame (1). A first drive motor (22) is installed in the middle of the multiple fixed frames (21), and the output end of the multiple first drive motors (22) is connected to a screening roller (23). The periphery of the multiple screening rollers (23) is provided with holes and grooves (24).
8. A citrus processing young fruit grading and screening device according to claim 7, characterized in that, The screening rollers (23) are provided in three parts, and the holes (24) around the three screening rollers (23) are of different sizes.