A durian sorting and counterweighting device

By designing a durian sorting and counterweighting device, and using weighing and metering mechanisms to automatically control the sorting and return of durians, the problem of not being able to achieve specific weight and quantity sorting in existing technologies has been solved, and automated quantitative packaging of durians has been realized.

CN224443804UActive Publication Date: 2026-07-03JIANGSU JIUHENG AGRICULTURAL MACHINERY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JIUHENG AGRICULTURAL MACHINERY DEVELOPMENT CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing durian packaging facilities cannot sort durians by specific weight and quantity, requiring manual intervention and making it impossible to achieve quantitative packaging in gift boxes.

Method used

A durian sorting and counterweighting device was designed, which includes a rinsing and drying device, a feeding belt, and a sorting device. The sorting and return of durians are automatically controlled by a weighing mechanism, a metering mechanism, and a main control mechanism to achieve automatic sorting of specific weights and quantities.

Benefits of technology

The automated sorting and weighing of durians has been achieved, which improves operational efficiency, saves manpower, ensures the accuracy and precision of sorting, and reduces errors caused by human intervention.

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Abstract

This utility model relates to a durian sorting and counterweighting device, including a washing and drying device, a feeding belt, and a sorting device. The sorting device includes a main control mechanism, a conveyor belt, and one or more sorting belts. The conveyor belt includes a feeding area, a weight detection area, a sorting area, and a return area. The two ends of the return area are connected to the sorting area and the feeding area, respectively. Multiple receiving trays are provided on the feeding area. The weight detection area is equipped with a weighing mechanism and a metering mechanism. The feed inlet of the sorting belt is connected to the sorting area. The sorting belt and the sorting area are set at a 90-degree angle in their conveying directions. The sorting area is equipped with a pushing mechanism that pushes the receiving trays on the conveyor belt onto the sorting belt. A worktable is provided at the discharge port of the sorting belt. The weighing mechanism and the metering mechanism are electrically connected to the main control mechanism, and the pushing mechanism is also electrically connected to the main control mechanism. By adopting the above technical solution, the structure is simple, the degree of automation is high, the operation is convenient, and manpower is saved.
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Description

Technical Field

[0001] This utility model relates to the field of durian packaging technology, and in particular to a durian sorting and counterweighting device. Background Technology

[0002] Durian, a giant tropical evergreen tree belonging to the Malvaceae order and Bombacaceae family, has oblong leaves with pointed tips. It bears pale yellow flowers in cymose inflorescences. The fruit is about the size of a football, with a hard rind covered in triangular thorns. The flesh consists of arils, which are pale yellow, sticky, and juicy. It is a fruit of high economic value. Durian is one of the most famous tropical fruits, originating in Malaysia. It is widely cultivated in Southeast Asian countries, with Thailand being the largest producer. It is also grown in Guangdong and Hainan provinces of China. Durian is most famous in Thailand, where it is known as the "King of Fruits." Its aroma is strong; those who love it praise its fragrance, while those who dislike it complain of its stench.

[0003] Existing durian packaging facilities can only perform basic packaging of durians. If quantitative packaging of durians is desired, manual sorting is still required. Current packaging facilities are only suitable for packaging single durians or packaging a certain quantity of durians, and cannot sort them into gift boxes based on specific weights or quantities. Utility Model Content

[0004] In summary, to overcome the shortcomings of the existing technology, this utility model provides a durian sorting and counterweighting device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a durian sorting and counterweighting device, including a washing and drying device, a feeding belt, and a sorting device. The sorting device includes a main control mechanism, a conveyor belt, and one or more sorting belts. The conveyor belt includes a feeding area, a weight detection area, a sorting area, and a return area. The two ends of the return area are connected to the sorting area and the feeding area, respectively. The feeding area is provided with multiple receiving trays. The weight detection area is provided with a weighing mechanism and a metering mechanism. The inlet of the sorting belt is connected to the sorting area. The sorting belt and the sorting area are set at a 90-degree angle in the conveying direction. The sorting area is provided with a pushing mechanism that pushes the receiving trays on the conveyor belt onto the sorting belt. The outlet of the sorting belt is provided with a worktable. The weighing mechanism and the metering mechanism are electrically connected to the main control mechanism, and the pushing mechanism is electrically connected to the main control mechanism.

[0006] By adopting the above technical solution, durians, after being washed and dried, enter the feeding belt. They are then moved manually or mechanically to the receiving tray in the loading area, and then conveyed to the weight detection area. A weighing mechanism weighs the durians (subtracting the set weight of the receiving tray), and a metering mechanism counts the durians entering the weight detection area. Both weighing and metering are transmitted to the main control mechanism via signals. The main control mechanism marks each durian as number x, with a weight of Lx. Then, according to the set program, it controls the pushing mechanism to send the durians entering the sorting area into the distribution belt or into the return area. The structure is simple, highly automated, easy to operate, and saves manpower. For example, if the main control mechanism is set to 6 durians weighing 80 jin (approximately 40 catties), i.e., y = 6, Ly = 80, the weight of each durian entering the weight detection area is recorded. The first durian in a round of calculation is denoted as n. The main control mechanism will determine if xn < 6. If it is less than 6, the weight of multiple durians, such as Ln + L(n+1) + L(n+2) + ... + Lx, will be added together and recorded as L total. If the error exceeds 80 jin, when durians n, (n+1), (n+2), ... enter the sorting area, the pushing mechanism will move them onto the sorting belt. When durian x enters the sorting area, the pushing mechanism will not work, allowing it to pass through the sorting area and enter the return area. The main control mechanism will continue to calculate whether the weight of the next durian is equal to the sum of the weights of the previous durians entering the sorting belt and meets the 80 jin error. The durian that meets the standard will be sent into the sorting belt. When a round is completed, the weight of that round will be reset and recalculated.

[0007] This utility model further comprises: the reflux zone includes a durian reflux belt and a receiving tray reflux belt; the receiving tray reflux belt is arranged parallel to the operating table and is located diagonally below the operating table; the operating table is connected to the receiving tray reflux belt via an inclined ladder; the other end of the receiving tray reflux belt is connected to the feeding area; the durian reflux belt and the receiving tray reflux belt are arranged at a 90-degree angle; the durian reflux belt is located between the operating table and the feeding area; one end of the durian reflux belt is connected to the discharge port of the sorting area, and the other end is connected to the receiving tray reflux belt.

[0008] By adopting the above technical solution, durians that do not enter the sorting belt will enter the receiving tray return belt through the durian return belt and be re-weighed and distributed. Meanwhile, the durians on the operating table will be packaged, and their receiving trays will fall onto the receiving tray return belt via an inclined ladder, and then enter the feeding area to wait for new durians to be placed. This realizes the automatic return of the receiving trays, which is simple to operate and convenient to use.

[0009] The present invention further includes: a selection station is provided on the operating platform, a weighing mechanism is provided below the selection station, the selection station is connected to the upper end of the inclined ladder, and the weighing mechanism is electrically connected to the alarm mechanism.

[0010] By adopting the above technical solution, the packaging boxes on the operating table are placed on the sorting station. A specific number of durians are placed in the packaging boxes. If the final weight does not meet the standard, the alarm mechanism will sound an alarm and conduct an inspection. Double calculation is performed to avoid errors in the main control mechanism or other steps, and timely adjustments are made. The sorting station is connected to the upper end of the inclined ladder. When the next receiving tray enters the sorting station, the empty receiving tray is squeezed and enters the receiving tray return belt along the inclined ladder. No additional mechanical operation is required, saving costs.

[0011] The present invention further comprises: three sorting belts arranged in parallel; a counting mechanism for marking the number of durians entering the sorting area is provided between the weight detection area and the sorting area; the counting mechanism is electrically connected to the main control mechanism.

[0012] By adopting the above technical solution, when there are multiple sorting belts, durians that do not meet the requirements of the first sorting belt will enter the second sorting belt. That is, the main control mechanism simultaneously enters multiple rounds of calculation. If there are 3 or 4 durians distributed on each of the three sorting belts, and the corresponding durians do not meet the above weight conditions, they will be returned through the durian return belt. Setting multiple sorting belts reduces the probability of return, greatly improving the efficiency of sorting and weighing. Setting a counting unit avoids the discrepancy between the number of durians entering the sorting area and the number of durians entering the weight detection area, avoiding the omission or loss of durians that may cause calculation errors, and further improving the accuracy of sorting and weighing.

[0013] The present invention further includes: one end of the feeding belt is connected to the washing and drying device, and the other end is provided with a material transfer mechanism between the feeding belt and the feeding area for moving the durians on the feeding belt to the receiving tray; the feeding area is provided with a feeding station, and the feeding station is provided with a detection mechanism for detecting whether the receiving tray is empty.

[0014] By adopting the above technical solution, the entire process is mechanized and automated, with mechanical feeding, which saves labor costs, improves efficiency, and the detection mechanism can distinguish between empty trays and returned durians, thus improving the accuracy of feeding.

[0015] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples. Attached Figure Description

[0016] Figure 1 This is a top view of an embodiment of the present utility model.

[0017] Figure 2 This is an enlarged view of a partial structure of an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the process of an embodiment of the present utility model.

[0019] Figure 4 This is a schematic block diagram of an embodiment of the present utility model.

[0020] Attached reference numerals: 1. Washing and drying device, 2. Feeding belt, 3. Sorting device, 31. Main control mechanism, 32. Conveyor belt, 321. Feeding area, 322. Weight detection area, 323. Sorting area, 324. Return area, 3241. Durian return belt, 3242. Receiving tray return belt, 33. Sorting belt, 34. Weighing mechanism, 35. Metering mechanism, 36. Pushing mechanism, 37. Inclined ladder, 38. Counting mechanism, 4. Receiving tray, 5. Workbench, 51. Matching station, 52. Weighing mechanism, 53. Alarm mechanism. Detailed Implementation

[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0022] See appendix Figure 1-4 A durian sorting and counterweighting device includes a washing and drying device 1, a feeding belt 2, and a sorting device 3. The sorting device 3 includes a main control mechanism 31, a conveyor belt 32, and one or more sorting belts 33. The conveyor belt 32 includes a feeding area 321, a weight detection area 322, a sorting area 323, and a return area 324. The two ends of the return area 324 are connected to the sorting area 323 and the feeding area 321, respectively. The feeding area 321 is provided with multiple receiving trays 4. The weight detection area 322... Zone 322 is equipped with a weighing mechanism 34 and a metering mechanism 35. The feed inlet of the sorting belt 33 is connected to the sorting zone 323. The sorting belt 33 and the sorting zone 323 are set at a 90-degree angle in the conveying direction. The sorting zone 323 is equipped with a pushing mechanism 36 that pushes the receiving plate 4 on the conveyor belt 32 onto the sorting belt 33. The discharge port of the sorting belt 33 is equipped with a workbench 5. The weighing mechanism 34 and the metering mechanism 35 are electrically connected to the main control mechanism 31, and the pushing mechanism 36 is electrically connected to the main control mechanism 31.

[0023] This embodiment further includes the following configuration: the reflux zone 324 comprises a durian reflux belt 3241 and a receiving tray reflux belt 3242. The receiving tray reflux belt 3242 is arranged parallel to the operating table and is located diagonally below the operating table. The operating table is connected to the receiving tray reflux belt 3242 via an inclined ladder 37. The other end of the receiving tray reflux belt 3242 is connected to the feeding zone 321. The durian reflux belt 3241 and the receiving tray reflux belt 3242 are arranged at a 90-degree angle. The durian reflux belt 3241 is located between the operating table and the feeding zone 321. One end of the durian reflux belt 3241 is connected to the outlet of the sorting zone 323, and the other end is connected to the receiving tray reflux belt 3242.

[0024] This embodiment further includes the following configuration: a selection station 51 is provided on the operating platform, a weighing mechanism 52 is provided below the selection station 51, the selection station 51 is connected to the upper end of the inclined ladder 37, and the weighing mechanism 52 is electrically connected to the alarm mechanism 53.

[0025] This embodiment further includes the following configuration: there are three sorting belts 33 arranged in parallel; a counting mechanism 38 for marking the number of durians entering the sorting area 323 is provided between the weight detection area 322 and the sorting area 323; the counting mechanism 38 is electrically connected to the main control mechanism 31.

[0026] In this utility model technical solution, to further illustrate the calculation and processing of the main control mechanism 31, the first durian entering each round of calculation is n, the durian entering the sorting zone 323 is x, its weight is Lx, the total weight calculated in each round (which will be reset to zero in the new round) is denoted as Ltotal, the weight value is set as Ly, the durian quantity value is set as y, and the error is denoted as z. The main control mechanism 31 determines whether the durian entering the sorting zone 323 meets the criteria of "(xn) < y and L(yz) ≤ Ltotal + Lx ≤ L(y+z)". The durians that meet the criteria are pushed onto the sorting belt 33 by the pushing mechanism 36. The durians that do not meet the criteria are determined by the sorting zone whether to enter the next sorting belt 33 or the durian return belt 3241.

[0027] This embodiment further includes the following configuration: one end of the feeding belt 2 is connected to the washing and drying device 1, and the other end is connected to the feeding area 321 by a material transfer mechanism for moving the durians on the feeding belt 2 to the receiving tray 4. The feeding area 321 is provided with a feeding station, and the feeding station is provided with a detection mechanism for detecting whether the receiving tray 4 is empty.

[0028] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The aforementioned "between" does not only refer to the orientation or position, but also includes the interaction between different parts.

[0029] Although this document frequently uses terms such as rinsing and drying device 1, feeding belt 2, sorting device 3, main control mechanism 31, conveyor belt 32, feeding area 321, weight detection area 322, sorting area 323, return area 324, durian return belt 3241, receiving tray return belt 3242, sorting belt 33, weighing mechanism 34, metering mechanism 35, pushing mechanism 36, inclined ladder 37, counting mechanism 38, receiving tray 4, workbench 5, matching station 51, weighing mechanism 52, alarm mechanism 53, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A durian sorting and weighing apparatus, characterised in that: The system includes a rinsing and drying device, a feeding belt, and a sorting device. The sorting device includes a main control mechanism, a conveyor belt, and one or more sorting belts. The conveyor belt includes a feeding area, a weight detection area, a sorting area, and a return area. The two ends of the return area are connected to the sorting area and the feeding area, respectively. The feeding area is equipped with multiple receiving trays. The weight detection area is equipped with a weighing mechanism and a metering mechanism. The feed inlet of the sorting belt is connected to the sorting area. The sorting belt is set at a 90-degree angle to the conveying direction of the sorting area. The sorting area is equipped with a pushing mechanism that pushes the receiving trays on the conveyor belt onto the sorting belt. The discharge outlet of the sorting belt is equipped with a worktable. The weighing mechanism and the metering mechanism are electrically connected to the main control mechanism, and the pushing mechanism is electrically connected to the main control mechanism.

2. A device for sorting durians by weight as claimed in claim 1, wherein: The reflux zone includes a durian reflux belt and a receiving tray reflux belt. The receiving tray reflux belt is arranged parallel to the operating table and is located diagonally below the operating table. The operating table is connected to the receiving tray reflux belt via an inclined ladder. The other end of the receiving tray reflux belt is connected to the feeding area. The durian reflux belt and the receiving tray reflux belt are arranged at a 90-degree angle. The durian reflux belt is located between the operating table and the feeding area. One end of the durian reflux belt is connected to the discharge port of the sorting area, and the other end is connected to the receiving tray reflux belt.

3. A device for sorting durians by weight as claimed in claim 2, wherein: The operating platform is equipped with a selection station, and a weighing mechanism is installed below the selection station. The selection station is connected to the upper end of the inclined ladder, and the weighing mechanism is electrically connected to the alarm mechanism.

4. A durian sorting and counterweighting device according to claim 2, characterized in that: There are three sorting belts arranged in parallel. A counting mechanism for marking the durians entering the sorting area is provided between the weight detection area and the sorting area. The counting mechanism is electrically connected to the main control mechanism.

5. A device for sorting durians by weight as claimed in claim 1, wherein: One end of the feeding belt is connected to the washing and drying device, and the other end is connected to the feeding area. A material transfer mechanism is provided to move the durians on the feeding belt to the receiving tray. The feeding area is provided with a feeding station, and the feeding station is provided with a detection mechanism to detect whether the receiving tray is empty.