Fruit grading and screening device
By designing a combination and separation structure for the feeding plate and support roller in the fruit sorting device, the problem of large fruits piling up is solved, achieving efficient and automated fruit sorting, and improving sorting efficiency and fruit integrity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUJIANG YUANXIANG MODERN AGRI CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-19
AI Technical Summary
Existing fruit sorting equipment tends to accumulate large fruits, resulting in low sorting efficiency and requiring manual intervention, which affects the degree of automation and production efficiency.
Design a fruit grading and screening device. By setting up a material support plate and support roller that can be combined and separated between adjacent screening rollers, the rotation of the screening rollers lifts up large fruits and transports them to the other end. Combined with the sequential change of screening aperture, effective screening is achieved.
This effectively prevents fruit from piling up, improves screening efficiency, reduces fruit damage, ensures the continuity and automation of screening, and enhances production efficiency.
Smart Images
Figure CN224253518U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fruit screening technology, specifically a fruit grading and screening device. Background Technology
[0002] In the process of fruit harvesting and sales, to maximize product value, fruits are usually graded and sorted according to size and sold at different prices. Currently, the industry standard for fruit sorting is to use fruit sorting machines. For example, the utility model patent disclosed in patent publication number CN221714935U uses multiple rollers with different apertures on the outside, and utilizes the rotation of the rollers to make fruits of different sizes roll on the rollers, thereby achieving effective sorting of fruit by size.
[0003] However, in actual use, the aforementioned screening equipment has significant drawbacks. Because the top of the drum is higher than the sides, when the fruit to be screened is large, the drum cannot provide sufficient driving force during rotation to move the large fruit to the other end, causing these fruits to easily accumulate at the beginning of the drum. To ensure smooth screening, manual intervention is often required, which not only increases labor costs but also reduces screening efficiency, affecting the automation level and production benefits of fruit screening. Utility Model Content
[0004] Therefore, in order to solve the above-mentioned shortcomings, this utility model provides a fruit grading and screening device. The screening device can easily lift the fruit at one end of the screening drum and rotate it to the other end by combining and separating adjacent screening drums in the second screening mechanism. This avoids the situation where large fruits cannot be fixed in the sieve holes distributed outside the drum, which would cause the fruit to accumulate at one end of the drum and affect the screening efficiency.
[0005] This utility model is implemented by constructing a fruit grading and screening device, including a first screening mechanism with a feeding hopper at one end.
[0006] The second screening mechanism is connected to the other end of the first screening mechanism;
[0007] Several screening rollers are rotatably arranged inside the second screening mechanism. The screening rollers are arranged in parallel and are connected and separated from each other. The screening aperture of adjacent screening rollers changes in sequence and keeps the screening aperture of the screening roller closest to the first screening mechanism the smallest.
[0008] Preferably, the first screening mechanism is provided with several parallel screening rollers, which are driven by a conveying assembly to convey to the second screening mechanism, and a first discharge trough is provided at the bottom of the first screening mechanism.
[0009] Preferably, the second screening mechanism includes a screening frame, a screening roller is rotatably arranged on the inner wall of the screening frame, a second discharge trough is inclinedly arranged below the screening roller, the second discharge trough extends to the outer surface of the screening frame, and a third discharge trough is also arranged on the outer side of the screening roller away from the first screening mechanism.
[0010] Preferably, a material distribution baffle fixed to the second discharge trough is provided between two adjacent screening rollers.
[0011] Preferably, each of the screening rollers includes a rotating shaft that is rotatably mounted on the inner wall of the screening frame;
[0012] Two baffle discs are set on the rotating shafts at both ends of the screening roller and are kept coaxial.
[0013] Several support rollers are arranged circumferentially between two baffle discs, so that screening holes are formed between two adjacent support rollers;
[0014] Several material support plates are fixed to the outer end of the support roller and distributed circumferentially between the material stop discs.
[0015] Preferably, slots are provided in a straight line on the outer end of the material support plate, and the material support plates between two adjacent screening rollers are joined and separated by matching slots.
[0016] Preferably, the number of support rollers in two adjacent screening cylinders is different and changes sequentially, with the screening cylinder closer to the first screening mechanism having the most support rollers.
[0017] This utility model has the following beneficial effects:
[0018] This new fruit sorting device can effectively solve the problem of large fruits piling up during the sorting process. By combining and separating adjacent sorting rollers, large fruits piled up at one end of the roller can be quickly lifted and transported to the other end, avoiding interruption of the sorting process due to fruit piling up. This allows the sorting work to be carried out continuously and efficiently, and the sorting efficiency is greatly improved compared to traditional sorting equipment.
[0019] Meanwhile, when screening fruits, this screening device can effectively reduce the rolling and sliding of the fruits, avoid damage from large impacts, and also prevent the peel from breaking when the fruits slide on the plate, thus effectively ensuring the integrity of the fruits. Attached Figure Description
[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute any limitation on the present invention. In the drawings:
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a frontal view of the present invention;
[0023] Figure 3 This is a schematic diagram of the structure of the first screening mechanism of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the second screening mechanism of this utility model;
[0025] Figure 5 This is a cross-sectional schematic diagram of the second screening mechanism of this utility model;
[0026] Figure 6 This is a schematic diagram of the screening drum in the second screening mechanism of this utility model;
[0027] In the diagram: 1. Feed hopper; 2. Screening roller; 3. First discharge trough plate; 4. Screening frame; 5. Second discharge trough plate; 6. Dividing baffle; 7. Third discharge trough plate; 8. Screening drum; 801. Rotating shaft; 802. Material blocking disc; 803. Support roller; 804. Material support plate; 805. Slot. Detailed Implementation
[0028] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this utility model and are not intended to limit this utility model in any way. The accompanying drawings in this utility model are only for illustrative purposes and to facilitate understanding of the embodiments and are not intended to limit this utility model in any way.
[0029] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.
[0030] As described in the background section, the existing fruit screening machine structure has a drum with the highest end higher than the sides. When the size of the fruit is larger than the diameter of the drum's aperture, it cannot effectively ensure that the fruit can be fixed within the aperture and rotate to the other end as the drum rotates. This causes the fruit to accumulate at one end of the drum, affecting the screening efficiency.
[0031] Based on the above reasons, in order to solve the above problems, this utility model provides the following technical solution:
[0032] Example 1,
[0033] Please see the appendix Figure 1 ~Appendix Figure 3 A fruit grading and screening device includes a first screening mechanism with a feed hopper 1 at one end;
[0034] The second screening mechanism is connected to the other end of the first screening mechanism;
[0035] Several screening rollers 8 are rotatably arranged inside the second screening mechanism. The screening rollers 8 are arranged in parallel and are connected and separated from each other. The screening aperture of adjacent screening rollers 8 changes in sequence and keeps the screening aperture of the screening rollers 8 closest to the first screening mechanism the smallest.
[0036] Please see the appendix Figure 4 and attached Figure 5 In this embodiment, the second screening mechanism includes a screening frame 4, a screening roller 8 is rotatably arranged on the inner wall of the screening frame 4, a second discharge trough plate 5 is inclinedly arranged below the screening roller 8, the second discharge trough plate 5 extends to the outer side of the screening frame 4, and a third discharge trough plate 7 is also arranged on the outer side of the screening roller 8 away from the first screening mechanism.
[0037] Please see the appendix Figure 6 In this embodiment, each of the screening rollers 8 includes a rotating shaft 801, which is rotatably mounted on the inner wall of the screening frame 4;
[0038] Two baffle discs 802 are mounted on the rotating shafts 801 at both ends of the screening roller 2 and are kept coaxial.
[0039] Several support rollers 803 are circumferentially distributed between two baffle discs 802, so that screening holes are formed between two adjacent support rollers 803;
[0040] Several material support plates 804 are fixed to the outer end of the support roller 803 and are circumferentially distributed between the material stop discs 802.
[0041] Furthermore, slots 805 are provided in a straight line on the outer end of the material support plate 804, and the material support plates 804 between two adjacent screening rollers 8 can be joined and separated through the matching slots 805.
[0042] During screening, the first screening mechanism evenly conveys the fruit into the screening frame 4, where it first falls onto the first screening roller 8. The fruit then falls onto the support roller 803. Smaller fruits pass through the gaps between the support rollers 803 and fall into the second discharge trough 5 below, where they are conveyed out. Larger fruits are supported by the material support plate 804. Combined with the rotation of the screening roller 8, the fruit moves to the other end until it joins another screening roller 8. The material support plate 804 outside the other screening roller 8 then supports the fruit, separating it from the material support plate 804 of the first screening roller 8. This achieves effective screening and conveying of the fruit, preventing accumulation and ensuring the fruit remains intact without impact during screening. Finally, the fruit is conveyed from the last screening roller 8 to the third discharge trough 7 and then out, completing the entire automated screening process.
[0043] Example 2,
[0044] Please see the appendix Figure 3 Based on Example 1, in order to facilitate the uniform transport of fruit and remove leaves mixed in with the fruit, a feasible solution is provided here:
[0045] The first screening mechanism is provided with several parallel screening rollers 2, which are driven by a conveying component to convey to the second screening mechanism. A first discharge trough plate 3 is provided at the bottom of the first screening mechanism.
[0046] The screening rollers in the first screening mechanism can easily and evenly transport the piled-up fruit to the second screening mechanism, thereby enabling effective screening.
[0047] Example 3,
[0048] Please see the appendix Figure 4 and attached Figure 5 Based on Example 1, in order to facilitate the separate discharge of the sieved fruits and avoid them from mixing together, a feasible solution is provided here:
[0049] A material distribution baffle 6 is fixed on the second discharge trough plate 5 between two adjacent screening rollers 8.
[0050] Example 4,
[0051] Please see the appendix Figure 6 Based on Example 1, a feasible solution is provided here to achieve size sorting of fruits of different sizes:
[0052] The number of support rollers 803 in two adjacent screening rollers 8 is different and changes sequentially, with the screening roller 8 closer to the first screening mechanism having the most support rollers 803.
[0053] The more support rollers there are, the smaller the gap between two support rollers, making it easier to sieve smaller fruits, and vice versa.
[0054] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.
Claims
1. A fruit grading and sorting apparatus, characterised in that: include, The first screening mechanism has a feed hopper at one end; The second screening mechanism is connected to the other end of the first screening mechanism; Several screening rollers are rotatably arranged inside the second screening mechanism. The screening rollers are arranged in parallel and are connected and separated from each other. The screening aperture of adjacent screening rollers changes in sequence and keeps the screening aperture of the screening roller closest to the first screening mechanism the smallest.
2. A fruit grading and sorting apparatus as claimed in claim 1, wherein: The first screening mechanism is equipped with several parallel screening rollers, which are driven by a conveying assembly to convey materials to the second screening mechanism. A first discharge trough is provided at the bottom of the first screening mechanism.
3. A fruit grading apparatus as claimed in claim 1, wherein: The second screening mechanism includes a screening frame, a screening roller is rotatably arranged on the inner wall of the screening frame, a second discharge trough plate is inclinedly arranged below the screening roller, the second discharge trough plate extends to the outer side of the screening frame, and a third discharge trough plate is also arranged on the outer side of the screening roller away from the first screening mechanism.
4. A fruit grading apparatus as claimed in claim 3, wherein: A material distribution baffle fixed to the second discharge trough is installed between two adjacent screening rollers.
5. A fruit grading apparatus as claimed in claim 3, wherein: Each of the screening rollers includes a rotating shaft that is rotatably mounted on the inner wall of the screening frame; Two baffle discs are set on the rotating shafts at both ends of the screening roller and are kept coaxial. Several support rollers are arranged circumferentially between two baffle discs, so that screening holes are formed between two adjacent support rollers; Several material support plates are fixed to the outer end of the support roller and distributed circumferentially between the material stop discs.
6. A fruit grading apparatus as claimed in claim 5, wherein: Slots are provided in a straight line on the outer end of the material support plate, and the material support plates between two adjacent screening rollers are connected and separated by matching slots.
7. A fruit grading apparatus as claimed in claim 5, wherein: The number of support rollers in two adjacent screening cylinders is different and changes sequentially, with the screening cylinder closer to the first screening mechanism having the most support rollers.