Fruit sorting device for sorting based on weighing

By designing a weighing-based fruit sorting device, automated apple sorting was achieved, solving the problems of low efficiency and large errors in manual screening, and improving sorting speed and accuracy.

CN121551285APending Publication Date: 2026-02-24HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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Patent Information

Application Number
CN202610048735.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-15
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Manually sorting apples of different weights is inefficient and prone to large classification errors, affecting pricing fairness and increasing labor costs and health burdens.

Method used

Design a weighing-based fruit sorting device, including a mounting frame, a weighing platform, and a placement platform. Apples are moved by a conveying component, the feeding component is rotated to change the orientation of the discharge port, and the weight scale is used to determine the apple grade, thereby achieving automatic sorting.

Benefits of technology

It improves apple screening speed, reduces classification errors, lowers labor costs and health risks, and enhances sorting efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a fruit sorting device for sorting based on weighing, and relates to the field of apple classification, the fruit sorting device comprises a mounting rack, and the top of the mounting rack is provided with a conveying assembly; the weighing table is connected to one end of the mounting frame, and a rotary feeding assembly is arranged on the weighing table and used for receiving the apples conveyed by the conveying assembly and conveying the apples to a designated position after rotation; according to the fruit sorting device for sorting based on weighing, the mounting frame, the weighing table and the placing table are arranged, apples move through the conveying assembly on the mounting frame, after the apples fall into the rotary feeding assembly, the weighing table can weigh the apples, the apples rotate to change the orientation of a discharging opening of the rotary feeding assembly after the apples are determined to be graded, and then the apples are sorted. Then the apples in the rotary feeding assembly are conveyed into a collecting box at a designated position; the collecting boxes can be placed on the placing table, an operator can check the total weight of the apples collected by each collecting box through the weight scale, and the apple screening speed can be effectively increased.
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Description

Technical Field

[0001] This invention relates to apple sorting technology, specifically to a fruit sorting device based on weighing. Background Technology

[0002] When selling apples, they need to be carefully classified according to their size based on objective standards such as diameter and weight. Different sizes of apples often correspond to different quality experiences: large and symmetrical apples usually have fuller flesh and better taste, and are more suitable as gifts or high-end consumer choices; medium and small apples are suitable for daily family consumption or bulk processing.

[0003] Manually sorting apples of different weights is extremely tedious. Workers must repeatedly bend over to pick, weigh, and judge, which is not only inefficient but also prone to errors due to hand fatigue, leading to mixed grades of different sizes. This not only affects the fairness of pricing but may also cause customer complaints due to inconsistent standards. In addition, prolonged and intensive manual work increases labor costs and health burdens. To address this, there is a need to design a device that is simple in structure, easy to use, and capable of quickly sorting apples of different weights. Summary of the Invention

[0004] The purpose of this invention is to provide a fruit sorting device based on weighing to solve the problems of low efficiency and large classification error in manually sieving apples of different weights.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fruit sorting device based on weighing, comprising:

[0006] Mounting frame, the top of which is provided with a conveying component;

[0007] A weighing platform is connected to one end of the mounting frame. A rotary feeding assembly is provided on the weighing platform to receive apples transferred by the conveying assembly and to send the apples to a designated position after rotation.

[0008] A placement platform is provided on the side of the weighing platform, and a weight scale is connected to the placement platform. The placement platform is used to place apples that are transferred by the rotating feeding assembly.

[0009] Preferably, the conveying assembly includes a conveyor frame connected to the mounting frame, a drive roller rotatably connected to the conveyor frame, and a conveyor belt movably connected to the drive roller. A first drive motor is connected to the mounting frame, and a sprocket is connected to the output shaft end of the first drive motor and the end of one of the drive rollers. A chain is movably connected to the two sprockets.

[0010] Preferably, the rotary feeding assembly includes a steering motor connected to the weighing platform, a rotating drum rotatably connected to the steering motor, and an outer tray connected to the rotating drum. The output shaft of the steering motor is connected to the outer tray. An inclined discharge cylinder is connected to the side of the outer tray. An electric telescopic rod is connected to the discharge cylinder. A blocking plate is connected to the end of the electric telescopic rod to block the connection between the outer tray and the discharge cylinder.

[0011] Preferably, a spiral coil is connected to the inner wall of the outer tray, a foam cushioning pad is connected to the spiral coil, a gap is provided between the foam cushioning pad and the outer tray, and an inner tray is connected to the inner wall of the foam cushioning pad, the inner tray being made of rubber.

[0012] Preferably, the end of the discharge cylinder is connected to a plurality of clamping rods, the ends of the clamping rods away from the discharge cylinder are all inclined toward the axis of the discharge cylinder, and an elastic cloth is connected between adjacent clamping rods.

[0013] Preferably, a second drive motor is connected to the mounting bracket, a sliding frame is slidably connected to the mounting bracket, a drive frame is connected to the sliding frame, two opposing abutments are connected to the drive frame, an abutment plate that is engaged between the two abutments is connected to the output shaft end of the second drive motor, and the sliding frame is connected to the placement platform.

[0014] Preferably, the bottom of the placement platform is rotatably connected to a sliding roller.

[0015] Preferably, a guide plate is connected to the side of the mounting bracket near the outer tray.

[0016] Compared with existing technologies, the present invention provides a fruit sorting device based on weighing. By setting up an installation frame, a weighing platform, and a placement platform, apples are moved by a conveying component on the installation frame. When an apple falls into a rotating feeding component, the weighing platform can weigh the apple and determine its grade. Then, the rotating platform rotates to change the direction of the discharge port of the rotating feeding component and sends the apples in the rotating feeding component to a collection box at a designated location. The collection box can be placed on the placement platform, and the operator can use the weight scale to check the total weight of apples collected in each collection box, which can effectively improve the apple sorting speed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention. Figure 1 ;

[0019] Figure 2 A schematic diagram of the overall structure provided for an embodiment of the present invention. Figure 2 ;

[0020] Figure 3 This is an exploded structural diagram of the rotary feeding assembly provided in an embodiment of the present invention;

[0021] Figure 4 A schematic cross-sectional view of the rotary feeding assembly provided in an embodiment of the present invention. Figure 1 ;

[0022] Figure 5 A schematic cross-sectional view of the rotary feeding assembly provided in an embodiment of the present invention. Figure 2 ;

[0023] Figure 6 This is a schematic diagram of the connection structure between the clamping rod and the elastic fabric provided in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Mounting frame; 2. Conveyor frame; 3. Drive roller; 4. Conveyor belt; 5. First drive motor; 6. Sprocket; 7. Chain; 8. Weighing platform; 9. Steering motor; 10. Rotary drum; 11. Outer pallet; 12. Discharge cylinder; 13. Electric telescopic rod; 14. Blocking plate; 15. Foam cushioning pad; 16. Spiral coil; 17. Inner pallet; 18. Clamping rod; 19. Elastic cloth; 20. Second drive motor; 21. Support plate; 22. Sliding frame; 23. Drive frame; 24. Support rod; 25. Placement platform; 26. Weighing scale; 27. Sliding roller; 28. Guide plate. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] As attached Figure 1 To be continued Figure 6 As shown:

[0028] Example 1:

[0029] This invention provides a fruit sorting device based on weighing, comprising:

[0030] Mounting frame 1, the top of which is provided with a conveying component;

[0031] Weighing platform 8 is connected to one end of the mounting frame 1. A rotary feeding assembly is provided on the weighing platform 8 to receive apples transferred by the conveying assembly and to send the apples to a designated position after rotation.

[0032] A placement platform 25 is disposed on the side of the weighing platform 8, and a weight scale 26 is connected to the placement platform 25. The placement platform 25 is used to place apples that are transferred by the rotating feeding assembly.

[0033] As can be seen from the above, by setting up the mounting frame 1, the weighing platform 8, and the placement platform 25, the apples are moved by the conveying component on the mounting frame 1. When the apples fall into the rotary feeding component, the weighing platform 8 can weigh the apples and determine the apple grading. After that, the rotary feeding component rotates to change the direction of the discharge port and then sends the apples in the rotary feeding component to the collection box at the designated position. The collection box can be placed on the placement platform 25. The operator can check the total weight of the apples collected in each collection box through the weight scale 26, which can effectively improve the apple screening speed.

[0034] The conveying assembly includes a conveying frame 2 connected to the mounting frame 1, a transmission roller 3 rotatably connected to the conveying frame 2, and a conveyor belt 4 movably connected to the transmission roller 3. A first transmission motor 5 is connected to the mounting frame 1. A sprocket 6 is connected to the output shaft end of the first transmission motor 5 and the end of the transmission roller 3. A chain 7 is movably connected to the two sprockets 6.

[0035] After the first drive motor 5 starts, its output shaft can drive the drive roller 3 to rotate through the sprocket 6 and chain 7. The rotating drive roller 3 can drive the conveyor belt 4 to rotate, and the conveyor belt 4 can drive the apple to move towards the rotating feeding assembly.

[0036] The rotary feeding assembly includes a steering motor 9 connected to the weighing platform 8, a rotating drum 10 rotatably connected to the steering motor 9, and an outer tray 11 connected to the rotating drum 10. The output shaft of the steering motor 9 is connected to the outer tray 11. An inclined discharge cylinder 12 is connected to the side of the outer tray 11. An electric telescopic rod 13 is connected to the discharge cylinder 12. A blocking plate 14 is connected to the end of the electric telescopic rod 13 to block the connection between the outer tray 11 and the discharge cylinder 12.

[0037] The conveyor belt 4 moves the apples towards the outer tray 11, where they finally fall. At this point, the weighing platform 8 weighs the apples. The three placement platforms 25 around the weighing platform 8 can be configured as large, medium, and small weight zones, each corresponding to a specific weight range. When the weighing platform 8 detects that the weight of the apples in the outer tray 11 falls within the weight range corresponding to a certain weight level, the output shaft of the steering motor 9 drives the outer tray 11 to rotate. The rotating outer tray 11 drives the discharge cylinder 12 to rotate, causing the discharge cylinder 12 to point towards the collection box corresponding to the apple's weight level. The electric telescopic rod 13 is activated, causing the blocking plate 14 to move outward, reconnecting the connection between the outer tray 11 and the discharge cylinder 12. The apples in the outer tray 11 then slide towards the collection box through the discharge cylinder 12.

[0038] A spiral coil 16 is connected to the inner wall of the outer tray 11, and a foam cushioning pad 15 is connected to the spiral coil 16. A gap is provided between the foam cushioning pad 15 and the outer tray 11. An inner tray 17 is connected to the inner wall of the foam cushioning pad 15. The inner tray 17 is made of rubber. The rubber can increase the friction between the inner tray 17 and the apple, preventing the apple from rolling around in the inner tray 17. In addition, the rubber can also improve the self-resetting ability of the inner tray 17 and the foam cushioning pad 15, causing the deformed foam cushioning pad 15 to quickly return to its original shape, thereby extending the service life of the foam cushioning pad 15.

[0039] The vortex coil 16 is positioned between the foam cushioning pad 15 and the outer tray 11, leaving a gap between the outer tray 11 and the foam cushioning pad 15. When the apple falls from the conveyor belt 4 onto the inner tray 17, the apple's weight will cause the inner tray 17 and the foam cushioning pad 15 to deform. At the same time, the inner tray 17 and the foam cushioning pad 15, which are impacted, will also cause the vortex coil 16 to deform and elongate. The foam cushioning pad 15 can generate heat through friction with the inner wall of the outer tray 11. At the same time, the foam cushioning pad 15 itself can also generate heat through compression and deformation, thereby eliminating the kinetic energy of the apple's fall and allowing the apple to land smoothly in the inner tray 17.

[0040] The discharge cylinder 12 is connected to a plurality of clamping rods 18 at one end. The ends of the clamping rods 18 away from the discharge cylinder 12 are all inclined toward the axis of the discharge cylinder 12. An elastic cloth 19 is connected between adjacent clamping rods 18.

[0041] After the electric telescopic rod 13 drives the blocking plate 14 to slide and expose the connection between the outer tray 11 and the discharge cylinder 12, the apple rolls from the inner tray 17 to the discharge cylinder 12 and rolls to the middle of the clamping rod 18 and the elastic cloth 19. Since the clamping rod 18 is set at an overall inclination, the multiple clamping rods 18 and the elastic cloth 19 are set in a conical shape. When the apple moves from the large end to the small end of the elastic cloth 19, the pressure of the elastic cloth 19 on the apple gradually increases, which makes the friction force on the apple gradually increase, thereby slowing down the movement speed of the apple in the elastic cloth 19, allowing the apple to slowly fall from the elastic cloth 19 into the collection box.

[0042] Example 2:

[0043] This invention provides a fruit sorting device based on weighing, comprising:

[0044] Mounting frame 1, the top of which is provided with a conveying component;

[0045] Weighing platform 8 is connected to one end of the mounting frame 1. A rotary feeding assembly is provided on the weighing platform 8 to receive apples transferred by the conveying assembly and to send the apples to a designated position after rotation.

[0046] A placement platform 25 is disposed on the side of the weighing platform 8, and a weight scale 26 is connected to the placement platform 25. The placement platform 25 is used to place apples that are transferred by the rotating feeding assembly.

[0047] As can be seen from the above, by setting up the mounting frame 1, the weighing platform 8, and the placement platform 25, the apples are moved by the conveying component on the mounting frame 1. When the apples fall into the rotary feeding component, the weighing platform 8 can weigh the apples and determine the apple grading. After that, the rotary feeding component rotates to change the direction of the discharge port and then sends the apples in the rotary feeding component to the collection box at the designated position. The collection box can be placed on the placement platform 25. The operator can check the total weight of the apples collected in each collection box through the weight scale 26, which can effectively improve the apple screening speed.

[0048] The conveying assembly includes a conveying frame 2 connected to the mounting frame 1, a transmission roller 3 rotatably connected to the conveying frame 2, and a conveyor belt 4 movably connected to the transmission roller 3. A first transmission motor 5 is connected to the mounting frame 1. A sprocket 6 is connected to the output shaft end of the first transmission motor 5 and the end of the transmission roller 3. A chain 7 is movably connected to the two sprockets 6.

[0049] After the first drive motor 5 starts, its output shaft can drive the drive roller 3 to rotate through the sprocket 6 and chain 7. The rotating drive roller 3 can drive the conveyor belt 4 to rotate, and the conveyor belt 4 can drive the apple to move towards the rotating feeding assembly.

[0050] The rotary feeding assembly includes a steering motor 9 connected to the weighing platform 8, a rotating drum 10 rotatably connected to the steering motor 9, and an outer tray 11 connected to the rotating drum 10. The output shaft of the steering motor 9 is connected to the outer tray 11. An inclined discharge cylinder 12 is connected to the side of the outer tray 11. An electric telescopic rod 13 is connected to the discharge cylinder 12. A blocking plate 14 is connected to the end of the electric telescopic rod 13 to block the connection between the outer tray 11 and the discharge cylinder 12.

[0051] The conveyor belt 4 moves the apples towards the outer tray 11, where they finally fall. At this point, the weighing platform 8 weighs the apples. The three placement platforms 25 around the weighing platform 8 can be configured as large, medium, and small weight zones, each corresponding to a specific weight range. When the weighing platform 8 detects that the weight of the apples in the outer tray 11 falls within the weight range corresponding to a certain weight level, the output shaft of the steering motor 9 drives the outer tray 11 to rotate. The rotating outer tray 11 drives the discharge cylinder 12 to rotate, causing the discharge cylinder 12 to point towards the collection box corresponding to the apple's weight level. The electric telescopic rod 13 is activated, causing the blocking plate 14 to move outward, reconnecting the connection between the outer tray 11 and the discharge cylinder 12. The apples in the outer tray 11 then slide towards the collection box through the discharge cylinder 12.

[0052] A spiral coil 16 is connected to the inner wall of the outer tray 11, and a foam cushioning pad 15 is connected to the spiral coil 16. A gap is provided between the foam cushioning pad 15 and the outer tray 11. An inner tray 17 is connected to the inner wall of the foam cushioning pad 15. The inner tray 17 is made of rubber. The rubber can increase the friction between the inner tray 17 and the apple, preventing the apple from rolling around in the inner tray 17. In addition, the rubber can also improve the self-resetting ability of the inner tray 17 and the foam cushioning pad 15, causing the deformed foam cushioning pad 15 to quickly return to its original shape, thereby extending the service life of the foam cushioning pad 15.

[0053] The vortex coil 16 is positioned between the foam cushioning pad 15 and the outer tray 11, leaving a gap between the outer tray 11 and the foam cushioning pad 15. When the apple falls from the conveyor belt 4 onto the inner tray 17, the apple's weight will cause the inner tray 17 and the foam cushioning pad 15 to deform. At the same time, the inner tray 17 and the foam cushioning pad 15, which are impacted, will also cause the vortex coil 16 to deform and elongate. The foam cushioning pad 15 can generate heat through friction with the inner wall of the outer tray 11. At the same time, the foam cushioning pad 15 itself can also generate heat through compression and deformation, thereby eliminating the kinetic energy of the apple's fall and allowing the apple to land smoothly in the inner tray 17.

[0054] The discharge cylinder 12 is connected to a plurality of clamping rods 18 at one end. The ends of the clamping rods 18 away from the discharge cylinder 12 are all inclined toward the axis of the discharge cylinder 12. An elastic cloth 19 is connected between adjacent clamping rods 18.

[0055] After the electric telescopic rod 13 drives the blocking plate 14 to slide and expose the connection between the outer tray 11 and the discharge cylinder 12, the apple rolls from the inner tray 17 to the discharge cylinder 12 and rolls to the middle of the clamping rod 18 and the elastic cloth 19. Since the clamping rod 18 is set at an overall inclination, the multiple clamping rods 18 and the elastic cloth 19 are set in a conical shape. When the apple moves from the large end to the small end of the elastic cloth 19, the pressure of the elastic cloth 19 on the apple gradually increases, which makes the friction force on the apple gradually increase, thereby slowing down the movement speed of the apple in the elastic cloth 19, allowing the apple to slowly fall from the elastic cloth 19 into the collection box.

[0056] A second drive motor 20 is connected to the mounting frame 1. A sliding frame 22 is slidably connected to the mounting frame 1. A drive frame 23 is connected to the sliding frame 22. Two opposing abutment rods 24 are connected to the drive frame 23. An abutment plate 21 is connected to the end of the output shaft of the second drive motor 20 and is engaged between the two abutment rods 24. The abutment plate 21 is inclined to the output shaft of the second drive motor 20. The sliding frame 22 is connected to the placement platform 25.

[0057] To prevent apples sliding out of the elastic cloth 19 from piling up in one place in the collection box, which would prevent the apples from being evenly distributed in the collection box, the second drive motor 20 can drive the abutment 21 to rotate. Since the abutment 21 and the output shaft of the second drive motor 20 are set at an angle, the rotating abutment 21 will drive the transmission frame 23 and the sliding frame 22 to slide back and forth through the abutment rod 24. The sliding frame 22 then drives multiple placement platforms 25 to move back and forth, so that the apples are scattered and evenly distributed in the collection box, improving the space utilization of the collection box.

[0058] To reduce the frictional force experienced by the placement platform 25 during its movement, a sliding roller 27 is rotatably connected to the bottom of the placement platform 25.

[0059] The mounting bracket 1 is connected to a guide plate 28 on the side near the outer tray 11, and the apples conveyed by the conveyor belt 4 can slide towards the outer tray 11 via the guide plate 28.

[0060] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention.

Claims

1. A fruit sorting device based on weighing, characterized in that, include: Mounting frame (1), the top of which is provided with a conveying component; Weighing platform (8) is connected to one end of the mounting frame (1). The weighing platform (8) is equipped with a rotating feeding assembly for receiving apples transferred by the conveying assembly and sending the apples to the designated position after rotation. A placement platform (25) is provided on the side of the weighing platform (8), and a weight scale (26) is connected to the placement platform (25). The placement platform (25) is used to place apples that are transferred by the rotating feeding assembly.

2. The fruit sorting device based on weighing according to claim 1, characterized in that, The conveying assembly includes a conveyor frame (2) connected to the mounting frame (1), a drive roller (3) rotatably connected to the conveyor frame (2), and a conveyor belt (4) movably connected to the drive roller (3). A first drive motor (5) is connected to the mounting frame (1). A sprocket (6) is connected to the output shaft end of the first drive motor (5) and the end of the drive roller (3). A chain (7) is movably connected to the two sprockets (6).

3. The fruit sorting device based on weighing according to claim 1, characterized in that, The rotary feeding assembly includes a steering motor (9) connected to the weighing platform (8), a rotating drum (10) rotatably connected to the steering motor (9), and an outer tray (11) connected to the rotating drum (10). The output shaft of the steering motor (9) is connected to the outer tray (11). An inclined discharge cylinder (12) is connected to the side of the outer tray (11). An electric telescopic rod (13) is connected to the discharge cylinder (12). A blocking plate (14) is connected to the end of the electric telescopic rod (13) to block the connection between the outer tray (11) and the discharge cylinder (12).

4. The fruit sorting device based on weighing according to claim 3, characterized in that, The inner wall of the outer tray (11) is connected to a spiral coil (16), and a foam cushioning pad (15) is connected to the spiral coil (16). A gap is provided between the foam cushioning pad (15) and the outer tray (11). The inner wall of the foam cushioning pad (15) is connected to an inner tray (17), which is made of rubber.

5. A fruit sorting device based on weighing according to claim 3, characterized in that, The discharge cylinder (12) is connected to a plurality of clamping rods (18) at its end. The ends of the clamping rods (18) away from the discharge cylinder (12) are all inclined toward the axis of the discharge cylinder (12). An elastic cloth (19) is connected between adjacent clamping rods (18).

6. A fruit sorting device based on weighing according to claim 1, characterized in that, The mounting bracket (1) is connected to a second drive motor (20), and a sliding frame (22) is slidably connected to the mounting bracket (1). A transmission frame (23) is connected to the sliding frame (22), and two opposing abutments (24) are connected to the transmission frame (23). The output shaft end of the second drive motor (20) is connected to an abutment plate (21) that is snapped between the two abutments (24). The abutment plate (21) is inclined, and the sliding frame (22) is connected to the placement platform (25).

7. A fruit sorting device based on weighing according to claim 6, characterized in that, The bottom of the placement platform (25) is rotatably connected to a sliding roller (27).

8. A fruit sorting device based on weighing according to claim 3, characterized in that, The mounting bracket (1) is connected to a guide plate (28) on the side near the outer tray (11).