Low-damage weighing device applied to peanut seeds

Abstract

The application belongs to the technical field of weighing equipment, and particularly relates to a low-damage weighing device applied to peanut seeds, which comprises a chassis, a weighing unit fixedly connected to the upper side of the chassis, a conveying belt installed on the upper side of the weighing unit, and a discharging buffer protection mechanism fixedly connected to the upper side of the conveying belt on the chassis. The discharging buffer protection mechanism comprises a rectangular shell fixedly connected to the conveying belt through side supports, the lower side of the rectangular shell is provided with an opening, a rectangular feeding port is formed in the upper side of the rectangular shell, and a feeding hopper matched with the rectangular feeding port is fixedly connected to the upper side of the rectangular shell. The discharging height of the storage box can be adjusted in real time according to the peanut accumulation height in the packaging box, so that the storage box is always close to the peanut accumulation surface for discharging, the impact force of the peanuts is reduced, the damage of the peanut seed coat and embryo is effectively reduced, and low-damage weighing is realized.

Description

Technical Field

[0001] This invention belongs to the field of weighing equipment technology, specifically relating to a low-damage weighing device for peanut seeds. Background Technology

[0002] In the process of large-scale processing, seedling cultivation, and sales, peanut seeds require precise weighing and packaging. Existing peanut seed weighing devices mostly use a direct feeding method, where peanut seeds fall directly from the storage silo into the weighing box. The significant impact force during this fall not only easily causes seed coat cracking and embryo damage, affecting germination rate and commercial value, but also leads to uneven accumulation of peanuts within the weighing box due to concentrated feeding, thus affecting weighing accuracy.

[0003] Some improved weighing devices may have a simple buffer plate added, but the buffer plate can only provide initial cushioning of the impact force of the falling peanuts. It cannot adjust the feeding height and feeding position. Since the buffer plate is located on the upper side of the weighing box, there is still a large distance between the buffer plate and the bottom of the weighing box. Peanuts falling from the buffer plate still have a large impact force and still have a large risk of damage. Summary of the Invention

[0004] The purpose of this invention is to provide a low-damage weighing device for peanut seeds, which can adjust the feeding height of the storage box in real time according to the height of the peanuts piled up in the packaging box, so that the storage box is always close to the peanut pile surface when feeding, reducing the impact force of the peanuts falling, effectively reducing the damage to the peanut seed coat and embryo, and achieving low-damage weighing.

[0005] The specific technical solution adopted by this invention is as follows: A low-damage weighing device for peanut seeds includes a base frame, a weighing unit fixedly connected to the upper side of the base frame, a conveyor belt mounted on the upper side of the weighing unit, and a feeding buffer protection mechanism fixedly connected to the base frame above the conveyor belt. The feeding buffer protection mechanism includes a rectangular shell, which is fixedly connected to the conveyor belt via a side bracket. The lower side of the rectangular shell is open, and the upper side of the rectangular shell has a rectangular feed inlet. A feed hopper adapted to the rectangular feed inlet is fixedly connected to the upper side of the rectangular shell. A set of rotating wheels is installed on both sides inside the rectangular housing. Each rotating wheel set includes a first upper rotating wheel, a second upper rotating wheel, two lower movable rotating wheels, a middle rotating wheel, and two tensioning rotating wheels. The first upper rotating wheel is rotatably connected to the upper front side of the rectangular housing, and the second upper rotating wheel is rotatably connected to the upper rear side of the rectangular housing. A drive motor is fixedly connected to the outer side of the rectangular housing, and the output end of the drive motor is drively connected to the rotating wheel sets. The middle rotating wheel is rotatably connected to the lower rear side of the rectangular housing. Lifting brackets and horizontal tensioning mechanisms are installed on both sides of the housing. Lower horizontal brackets are installed on the lower part of the two lifting brackets. The two lower movable rotating wheels are rotatably connected to the front and rear ends of the lower horizontal brackets, respectively. The two tensioning rotating wheels are rotatably connected to the horizontal tensioning mechanism. The outer sides of the first upper rotating wheel, the second upper rotating wheel, the two lower movable rotating wheels, the middle rotating wheel, and the two tensioning rotating wheels are driven by a transmission belt. Multiple storage boxes are rotatably connected between the two transmission belts. The storage boxes have storage cavities inside. At least one of the lower horizontal supports is provided with a flipping mechanism adapted to the storage box, and the flipping mechanism can move back and forth on the lower horizontal support.

[0006] Furthermore, multiple connecting brackets are fixedly connected to the sides of the two transmission belts that are close to each other, and rotating rods are fixedly connected to both sides of the storage box. The connecting brackets and rotating rods are rotatably connected.

[0007] Furthermore, the flipping mechanism includes a slide mounted on a lower horizontal support via a linear movement assembly, a rack fixedly connected to the lower part of the slide, and a gear fixedly connected to the outer side of the rotating rod on at least one side of the storage box, the gear being able to mesh with the rack.

[0008] Furthermore, the linear motion assembly includes a horizontal rail fixedly connected to one side of the lower horizontal support, an adjusting screw rotatably connected inside the horizontal rail, one end of the slide is slidably connected inside the horizontal rail, and the adjusting screw and the slide are threadedly connected, a servo motor is fixedly connected to one end face of the horizontal rail, and the output end of the servo motor is drively connected to the adjusting screw.

[0009] Furthermore, the storage cavity inside the storage box is a rectangular cavity, and a movable base plate is slidably connected inside the storage cavity. A sliding rod is fixedly connected to the lower end of the movable base plate. A through hole is opened at the bottom of the storage box, and the sliding rod is slidably connected inside the through hole. A protrusion is fixedly connected to one end of the sliding rod located outside the storage cavity. A top plate located below the rectangular feed inlet is fixedly connected inside the rectangular shell.

[0010] Furthermore, the horizontal tensioning mechanism includes a sleeve mounted on a rectangular housing. A slider is slidably connected inside the sleeve. A connecting rod is fixedly connected to the front side of the slider. A circular hole is opened on the front side of the sleeve. The front end of the connecting rod passes through the circular hole and is located outside the sleeve. A connecting block is fixedly connected to the front end of the connecting rod. A vertical mounting bracket is fixedly connected to the connecting block. Two tensioning wheels are rotatably connected to the vertical mounting bracket. A return spring is also installed inside the sleeve, with one end of the return spring abutting against the slider.

[0011] Furthermore, a compression spring plate is slidably connected inside the sleeve body, and the end of the return spring away from the slider body abuts against the compression spring plate. A threaded rod is rotatably connected inside the sleeve body, and the threaded rod is threadedly connected to the compression spring plate. A cylindrical cavity is opened inside the combination of the connecting rod body and the slider body, and the threaded rod can be inserted into the combination of the connecting rod body and the slider body. An adjusting handle is rotatably connected to the sleeve body, and the adjusting handle is connected to the threaded rod through a bevel gear transmission group.

[0012] Furthermore, the sleeve body is slidably connected to the rectangular shell, and a second electric telescopic rod is fixedly connected to the rectangular shell, with the piston rod of the second electric telescopic rod being fixedly connected to the sleeve body.

[0013] Furthermore, the lifting bracket includes a first electric telescopic rod fixedly connected to the rectangular housing. The piston rod of the first electric telescopic rod is fixedly connected to the lower horizontal support. A guide rod is also fixedly connected to the lower horizontal support. A guide sleeve is fixedly connected to the rectangular housing. The guide rod and the guide sleeve are slidably connected.

[0014] The technical effects achieved by this invention are as follows: This invention discloses a low-damage weighing device for peanut seeds. The device uses a storage box with a feeding buffer protection mechanism to receive peanut seeds, replacing the traditional direct feeding method. A flipping mechanism enables controllable flipping of the storage box for feeding. The peanut seeds only flip within the storage chamber before falling a short distance, significantly reducing the impact force. A lifting bracket can drive the lower horizontal support to move vertically, allowing for real-time adjustment of the feeding height of the storage box according to the peanut stack height in the packaging box. This ensures the storage box is always close to the peanut stack surface, reducing the impact force of falling peanuts and effectively minimizing damage to the peanut seed coat and embryo, thus guaranteeing seed germination rate and commercial value. The flipping mechanism can also move back and forth to adjust the horizontal feeding position of the peanut seeds, ensuring even distribution within the packaging box, reducing localized accumulation, and improving packaging neatness. Attached Figure Description

[0015] Figure 1 This is a front view of the peanut weighing system of the present invention; Figure 2This is a side view of the structure of the peanut weighing system of the present invention; Figure 3 This is a schematic diagram of the material feeding buffer protection mechanism of the present invention; Figure 4 This is a cross-sectional structural diagram of the feeding buffer protection mechanism of the present invention; Figure 5 This is a cross-sectional side view of the material feeding buffer protection mechanism of the present invention; Figure 6 This is a schematic diagram of the combined structure of the transmission belt and the storage box of the present invention; Figure 7 This is the present invention. Figure 5 Enlarged view of the structure at point A in the middle; Figure 8 This is the present invention. Figure 5 Enlarged view of the local structure at point A; Figure 9 This is a cross-sectional structural diagram of the present invention 31; Figure 10 When the storage box of this invention has a triangular structure Figure 6 Side view of the cross-section structure at point B; Figure 11 When the storage box of the present invention has a trapezoidal structure Figure 6 Side view of the cross-section structure at point B.

[0016] The attached diagram lists the components represented by each number as follows: 1. Base frame; 2. Weighing unit; 3. Conveyor belt; 4. Feeding buffer protection mechanism; 5. Weighing and feeding system; 6. Horizontal conveyor unit; 7. Packaging box; 8. Rectangular shell; 9. Rectangular feed inlet; 10. Feed hopper; 11. First upper impeller; 12. Lower movable impeller; 13. Intermediate impeller; 14. Second upper impeller; 15. Tensioning impeller; 16. Drive belt body; 17. Connecting bracket; 18. Rotating rod; 19. Storage box; 20. Drive motor; 21. Lower horizontal support; 22. ... 1. Electric telescopic rod; 23. Guide rod; 24. Guide sleeve; 25. Gear; 26. Horizontal rail body; 27. Slide carriage; 28. Adjusting screw; 29. ​​Rack and pinion; 30. Second electric telescopic rod; 31. Sleeve body; 32. Connecting rod body; 33. Connecting block; 34. Sliding block body; 35. Return spring; 36. Threaded rod; 37. Compression spring plate; 38. Adjusting handle; 39. Horizontal groove body; 40. Vertical mounting frame; 41. Storage cavity; 42. Movable base plate; 43. Slide rod; 44. Protrusion; 45. Top plate. Detailed Implementation

[0017] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0018] Example 1: like Figures 1-2 As shown, a peanut weighing system includes a low-damage weighing device, a weighing and feeding system 5, and two sets of horizontal conveying units 6. The weighing and feeding system 5 is installed on one side of the low-damage weighing device, and the discharge end of the weighing and feeding system 5 is located on the upper side of the low-damage weighing device. The two sets are located at the front and rear ends of the low-damage weighing device. At this point, the packaging box 7 is placed on the horizontal conveying unit 6, and the horizontal conveying unit 6 moves the packaging box 7 to the low-damage weighing device. Then, the weighing and feeding system 5 is started, and the packaging box 7 is discharged by the weighing and feeding system 5. During the discharge process, the low-damage weighing device weighs the packaging box 7. After the weighing is completed, the low-damage weighing device is started to move the packaging box 7 to the next horizontal conveying unit 6 to complete the discharge.

[0019] Example 2: like Figures 1-11 As shown, a low-damage weighing device for peanut seeds includes a base frame 1, a weighing unit 2 fixedly connected to the upper side of the base frame 1, a conveyor belt 3 installed on the upper side of the weighing unit 2, and the conveyor belt 3 and the base frame 1 are vertically slidably connected. When the packaging box 7 moves to the upper side of the conveyor belt 3, the packaging box 7 can be moved horizontally by the conveyor belt 3, and the weight of the conveyor belt 3 and the packaging box 7 falls on the weighing unit 2, which can be used to weigh the package.

[0020] The base frame 1 is also fixedly connected to the feeding buffer protection mechanism 4 located on the upper side of the conveyor belt 3. When the packaging box 7 moves to the lower side of the feeding buffer protection mechanism 4, the weighing feeding system 5 discharges the material into the feeding buffer protection mechanism 4. The feeding buffer protection mechanism 4 protects the peanuts during the feeding process and reduces damage to the peanuts. It should be noted that the peanuts inside the feeding buffer protection mechanism 4 are also within the weighing range of the weighing unit 2 until all the peanuts inside the feeding buffer protection mechanism 4 are discharged into the packaging box 7, thus completing the weighing work.

[0021] The feeding buffer protection mechanism 4 includes a rectangular housing 8, which is fixedly connected to the conveyor belt 3 by a side bracket. The lower side of the rectangular housing 8 is open, and the upper side of the rectangular housing 8 is provided with a rectangular feed inlet 9. A feed hopper 10 adapted to the rectangular feed inlet 9 is fixedly connected to the upper side of the rectangular housing 8. The peanuts discharged from the weighing feeding system 5 can be concentrated and guided to the rectangular feed inlet 9 through the feed hopper 10.

[0022] like Figures 3-6 As shown, a set of rotating wheels is installed on both sides inside the rectangular housing 8. The rotating wheel set includes a first upper rotating wheel 11, a second upper rotating wheel 14, two lower movable rotating wheels 12, a middle rotating wheel 13, and two tensioning rotating wheels 15. The first upper rotating wheel 11 is rotatably connected to the upper front side inside the rectangular housing 8, and the second upper rotating wheel 14 is rotatably connected to the upper rear side inside the rectangular housing 8. A drive motor 20 is fixedly connected to the outer side of the rectangular housing 8. The output end of the drive motor 20 is driven by the rotating wheel set, preferably by the second upper rotating wheel 14. The middle rotating wheel 13 is rotatably connected to the upper rear side inside the rectangular housing 8. Below the side, both sides of the rectangular shell 8 are equipped with lifting brackets and horizontal tensioning mechanisms. The lower part of each of the two lifting brackets is equipped with a lower horizontal bracket 21. The two lower movable rotating wheels 12 are rotatably connected to the front end and rear end of the lower horizontal bracket 21, respectively. The two tensioning rotating wheels 15 are rotatably connected to the horizontal tensioning mechanism. The outer sides of the first upper rotating wheel 11, the second upper rotating wheel 14, the two lower movable rotating wheels 12, the middle rotating wheel 13 and the two tensioning rotating wheels 15 are connected to a transmission belt 16. Multiple storage boxes 19 are rotatably connected between the two transmission belts 16. The storage box 19 has a storage cavity 41 inside. At this time, as Figure 5 As shown, the gap between the multiple storage boxes 19 located between the first upper rotating wheel 11 and the second upper rotating wheel 14 is small, preferably less than 2 mm, and the width of the storage box 19 is greater than the opening width of the rectangular feed port 9. The gap between the storage box 19 and the upper side of the rectangular shell 8 is also small, preferably less than 2 mm. With such size settings, the multiple storage boxes 19 located between the first upper rotating wheel 11 and the second upper rotating wheel 14 can form a sealing structure, reducing the possibility of peanuts falling into the rectangular shell 8 through the gap between the two storage boxes 19 or the gap between the storage box 19 and the rectangular shell 8. This ensures that the peanuts can only fall into the storage cavity 41. By starting the drive motor 20 to drive the drive belt 16 to move, the multiple storage boxes 19 can be driven to move along the path of the drive belt 16.

[0023] At the same time, the lower horizontal support 21 can be lowered by the lifting support to change the layout path of the transmission belt 16, that is, to change the height of the bottom of the transmission belt 16. While the lower horizontal support 21 moves, the tension of the transmission belt 16 can be ensured by the horizontal tensioning mechanism.

[0024] It should be noted that the transmission belt 16 can be a belt or a chain, and the first upper pulley 11, the second upper pulley 14, the two lower movable pulleys 12, the middle pulley 13 and the two tensioning pulleys 15 can be pulleys or sprockets, and preferably a combination of chains and sprockets, so as to ensure transmission stability.

[0025] Among them, such as Figure 3 As shown, the lifting support includes a first electric telescopic rod 22 fixedly connected to the rectangular housing 8. The piston rod of the first electric telescopic rod 22 is fixedly connected to the lower horizontal support 21. A guide rod 23 can also be fixedly connected to the lower horizontal support 21. A guide sleeve 24 is fixedly connected to the rectangular housing 8. The guide rod 23 and the guide sleeve 24 are slidably connected. The stability of the lower horizontal support 21 can be improved by the sliding guidance of the guide rod 23 and the guide sleeve 24.

[0026] Among them, such as Figures 3-4 and Figure 9 As shown, the horizontal tensioning mechanism includes a sleeve body 31 mounted on a rectangular housing 8. A slider body 34 is slidably connected inside the sleeve body 31. A connecting rod body 32 is fixedly connected to the front side of the slider body 34. A circular hole is opened on the front side of the sleeve body 31. The front end of the connecting rod body 32 passes through the circular hole and is located outside the sleeve body 31. A connecting block 33 is fixedly connected to the front end of the connecting rod body 32. A vertical mounting bracket 40 is fixedly connected to the connecting block 33. Two tensioning wheels 15 are rotatably connected to the vertical mounting bracket 40. A return spring 35 is also installed inside the sleeve body 31. One end of the return spring 35 abuts against the slider body 34. An elastic thrust can be applied to the slider body 34 through the return spring 35. Thus, a tensioning force can be applied to the tensioning wheel 15 through the connecting rod body 32, the connecting block 33, and the vertical mounting bracket 40. In turn, a tensioning force can be applied to the transmission belt body 16 through the tensioning wheel 15.

[0027] In some further embodiments, a spring plate 37 is slidably connected inside the sleeve body 31, and the end of the return spring 35 away from the slider body 34 abuts against the spring plate 37. A threaded rod 36 is rotatably connected inside the sleeve body 31, and the threaded rod 36 is threadedly connected to the spring plate 37. The position of the spring plate 37 can be adjusted by rotating the threaded rod 36, thereby adjusting the tension. A cylindrical cavity is opened inside the combination of the connecting rod body 32 and the slider body 34. The threaded rod 36 can be inserted into the combination of the connecting rod body 32 and the slider body 34 to reduce the influence of the threaded rod 36 on the movement of the slider body 34. An adjusting handle 38 is rotatably connected to the sleeve body 31. The adjusting handle 38 is connected to the threaded rod 36 through a bevel gear transmission group. The bevel gear transmission group includes two meshing bevel gears, which are respectively fixedly connected to the adjusting handle 38 and the threaded rod 36.

[0028] like Figure 3 As shown, when the sleeve body 31 is installed on the outside of the rectangular housing 8, transverse grooves 39 are provided on both sides of the rectangular housing 8. The connecting block 33 extends into the interior of the rectangular housing 8 through the transverse grooves 39, and the connecting block 33 can slide inside the transverse grooves 39.

[0029] Specifically, the sleeve body 31 can be directly fixedly connected to the rectangular housing 8, or it can be slidably connected to the rectangular housing 8. In this technical solution, the sleeve body 31 is preferably slidably connected to the rectangular housing 8, and a second electric telescopic rod 30 is fixedly connected to the rectangular housing 8. The piston rod of the second electric telescopic rod 30 is fixedly connected to the sleeve body 31. The sleeve body 31 can be moved by the second electric telescopic rod 30, and the tension can be further adjusted.

[0030] like Figure 3 and Figures 5-8 As shown, at least one lower horizontal support 21 is equipped with a flipping mechanism adapted to the storage box 19. The flipping mechanism is used to rotate the storage box 19, causing the storage cavity 41 to be inverted, and the peanuts inside the storage cavity 41 are discharged by gravity. The flipping mechanism can also move back and forth on the lower horizontal support 21 to adjust the horizontal position of the storage box 19 when discharging. In conjunction with the lifting support, the lower horizontal support 21 can be moved vertically to adjust the height of the storage box 19 when discharging. Thus, when the packaging box 7 is located below the feeding buffer protection mechanism 4, the height of the lower horizontal support 21 can be lowered by the lifting support, thereby minimizing the height of the storage box 19. 9. The discharge height: For example, initially, the storage box 19 is moved to the lower part of the packaging box 7 by the lifting bracket, and then the material is discharged. During the discharge process, as the height of the peanuts inside the packaging box 7 changes, the discharge height of the storage box 19 is gradually increased. This reduces the height from which the peanuts fall when feeding them into the packaging box 7, thereby reducing the impact force when the peanuts fall. When the peanuts fall into the packaging box 7, the damage caused by the large impact force is reduced. Furthermore, by moving the flipping mechanism back and forth, the horizontal discharge position of the peanuts inside the packaging box 7 can be adjusted, so that the peanuts are discharged into the packaging box 7 more evenly.

[0031] like Figure 4 and Figures 8-9 As shown, it should be noted that multiple connecting brackets 17 are fixedly connected to the sides of the two transmission belts 16 that are close to each other, and rotating rods 18 are fixedly connected to both sides of the storage box 19. The connecting brackets 17 and rotating rods 18 are rotatably connected. The storage box 19 can rotate under the action of gravity through the connecting brackets 17 and rotating rods 18, so that the opening of the storage cavity 41 automatically faces upward under the action of gravity.

[0032] Specifically, such as Figures 6-8As shown, the flipping mechanism includes a slide 27 mounted on the lower horizontal support 21 via a linear motion assembly. A rack 29 is fixedly connected to the lower part of the slide 27. A gear 25 is fixedly connected to the outer side of the rotating rod 18 on at least one side of the storage box 19. The gear 25 can mesh with the rack 29. When the storage box 19 moves the gear 25 to the rack 29, the rack 29 meshing with the gear 25 will cause the gear 25 to rotate, thereby driving the rotating rod 18 and the storage box 19 to rotate, thus completing the flipping action of the storage box 19.

[0033] The linear motion assembly includes a horizontal rail 26 fixedly connected to one side of the lower horizontal support 21. An adjusting screw 28 is rotatably connected inside the horizontal rail 26. One end of the slide 27 is slidably connected inside the horizontal rail 26, and the adjusting screw 28 and the slide 27 are threadedly connected. A servo motor is fixedly connected to one end face of the horizontal rail 26. The output end of the servo motor is connected to the adjusting screw 28. By starting the servo motor to drive the adjusting screw 28 to rotate, the slide 27 can be driven to move horizontally, thereby adjusting the position of the rack 29.

[0034] like Figures 10-11 As shown, one structure of the storage box 19 is as follows: Figure 10 The storage box 19 has another structure, as shown in the triangular-like structure. Figure 11 The trapezoidal structure shown has a rectangular storage cavity 41 inside the storage box 19. A movable base plate 42 is slidably connected inside the storage cavity 41, and a sliding rod 43 is fixedly connected to the lower end of the movable base plate 42. A through hole is opened at the bottom of the storage box 19, and the sliding rod 43 is slidably connected inside the through hole. A protrusion 44 is fixedly connected to one end of the sliding rod 43 located outside the storage cavity 41. A top plate 45 located below the rectangular feed inlet 9 is fixedly connected inside the rectangular shell 8. When the storage box 19 moves to the top plate 45, the protrusion 44 and the top plate 45... When the plates 45 abut against each other, the top plate 45 will lift and move upward, thereby driving the movable bottom plate 42 to move upward, reducing the effective volume inside the storage cavity 41 and controlling the amount of peanuts fed into the storage cavity 41. When the storage box 19 moves out from the top of the top plate 45, the protrusion 44 separates from the top plate 45, and the peanuts inside the storage cavity 41 and the movable bottom plate 42 fall under the action of gravity. At this time, a certain gap is generated between the upper surface of the peanuts inside the storage cavity 41 and the upper opening of the storage cavity 41, thereby reducing the possibility of peanuts accidentally falling out of the storage cavity 41.

[0035] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A low-damage weighing device for peanut seeds, comprising a base frame (1), a weighing unit (2) fixedly connected to the upper side of the base frame (1), a conveyor belt (3) mounted on the upper side of the weighing unit (2), and a feeding buffer protection mechanism (4) located above the conveyor belt (3) fixedly connected to the base frame (1), characterized in that: The feeding buffer protection mechanism (4) includes a rectangular shell (8), which is fixedly connected to the conveyor belt (3) by a side bracket. The lower side of the rectangular shell (8) is open, and a rectangular feed port (9) is opened on the upper side of the rectangular shell (8). A feed hopper (10) that matches the rectangular feed port (9) is fixedly connected to the upper side of the rectangular shell (8). A set of rotating wheels is installed on both sides inside the rectangular housing (8). The rotating wheel set includes a first upper rotating wheel (11), a second upper rotating wheel (14), two lower movable rotating wheels (12), a middle rotating wheel (13), and two tensioning rotating wheels (15). The first upper rotating wheel (11) is rotatably connected to the upper front side inside the rectangular housing (8), and the second upper rotating wheel (14) is rotatably connected to the upper rear side inside the rectangular housing (8). A drive motor (20) is fixedly connected to the outer side of the rectangular housing (8). The output end of the drive motor (20) is connected to the rotating wheel set. The middle rotating wheel (13) is rotatably connected to the lower rear side inside the rectangular housing (8). (8) Both sides are equipped with lifting brackets and horizontal tensioning mechanisms. The lower part of the two lifting brackets is equipped with a lower horizontal bracket (21). The two lower movable wheels (12) are rotatably connected to the front end and rear end of the lower horizontal bracket (21) respectively. The two tensioning wheels (15) are rotatably connected to the horizontal tensioning mechanism. The outer sides of the first upper wheel (11), the second upper wheel (14), the two lower movable wheels (12), the middle wheel (13) and the two tensioning wheels (15) are connected to a transmission belt (16). Multiple storage boxes (19) are rotatably connected between the two transmission belts (16). The storage box (19) has a storage cavity (41) inside. At least one of the lower horizontal supports (21) is provided with a flipping mechanism adapted to the storage box (19), and the flipping mechanism can move back and forth on the lower horizontal support (21).

2. The low-damage weighing device for peanut seeds according to claim 1, characterized in that: Multiple connecting brackets (17) are fixedly connected to the two transmission belt bodies (16) on the side that is close to each other, and rotating rods (18) are fixedly connected to both sides of the storage box (19). The connecting brackets (17) and rotating rods (18) are rotatably connected.

3. The low-damage weighing device for peanut seeds according to claim 2, characterized in that: The flipping mechanism includes a slide (27) mounted on a lower horizontal support (21) via a linear movement assembly. A rack (29) is fixedly connected to the lower part of the slide (27). A gear (25) is fixedly connected to the outside of the rotating rod (18) on at least one side of the storage box (19). The gear (25) can mesh with the rack (29).

4. The low-damage weighing device for peanut seeds according to claim 3, characterized in that: The linear motion assembly includes a horizontal rail (26) fixedly connected to one side of the lower horizontal support (21). An adjusting screw (28) is rotatably connected inside the horizontal rail (26). One end of the slide (27) is slidably connected inside the horizontal rail (26), and the adjusting screw (28) and the slide (27) are threadedly connected. A servo motor is fixedly connected to one end face of the horizontal rail (26), and the output end of the servo motor is connected to the adjusting screw (28) in a transmission connection.

5. A low-damage weighing device for peanut seeds according to claim 1, characterized in that: The storage chamber (41) inside the storage box (19) is a rectangular cavity. A movable base plate (42) is slidably connected inside the storage chamber (41). A sliding rod (43) is fixedly connected to the lower end of the movable base plate (42). A through hole is opened at the bottom of the storage box (19). The sliding rod (43) is slidably connected inside the through hole. A protrusion (44) is fixedly connected to one end of the sliding rod (43) located outside the storage chamber (41). A top plate (45) located below the rectangular feed inlet (9) is fixedly connected inside the rectangular shell (8).

6. The low-damage weighing device for peanut seeds according to claim 1, characterized in that: The horizontal tensioning mechanism includes a sleeve (31) mounted on a rectangular housing (8). A slider (34) is slidably connected inside the sleeve (31). A connecting rod (32) is fixedly connected to the front side of the slider (34). A circular hole is opened on the front side of the sleeve (31). The front end of the connecting rod (32) passes through the circular hole and is located outside the sleeve (31). A connecting block (33) is fixedly connected to the front end of the connecting rod (32). A vertical mounting frame (40) is fixedly connected to the connecting block (33). Two tensioning wheels (15) are rotatably connected to the vertical mounting frame (40). A return spring (35) is also installed inside the sleeve (31). One end of the return spring (35) abuts against the slider (34).

7. A low-damage weighing device for peanut seeds according to claim 6, characterized in that: The sleeve body (31) is also slidably connected to a compression spring plate (37). The end of the return spring (35) away from the slider body (34) abuts against the compression spring plate (37). The sleeve body (31) is rotatably connected to a threaded rod (36). The threaded rod (36) and the compression spring plate (37) are threadedly connected. The combination of the connecting rod body (32) and the slider body (34) has a cylindrical cavity. The threaded rod (36) can be inserted into the combination of the connecting rod body (32) and the slider body (34). The sleeve body (31) is rotatably connected to an adjusting handle (38). The adjusting handle (38) is connected to the threaded rod (36) through a bevel gear transmission group.

8. A low-damage weighing device for peanut seeds according to claim 7, characterized in that: The sleeve body (31) is slidably connected to the rectangular shell (8), and a second electric telescopic rod (30) is fixedly connected to the rectangular shell (8). The piston rod of the second electric telescopic rod (30) is fixedly connected to the sleeve body (31).

9. A low-damage weighing device for peanut seeds according to claim 1, characterized in that: The lifting support includes a first electric telescopic rod (22) fixedly connected to a rectangular shell (8). The piston rod of the first electric telescopic rod (22) is fixedly connected to a lower horizontal support (21). A guide rod (23) is also fixedly connected to the lower horizontal support (21). A guide sleeve (24) is fixedly connected to the rectangular shell (8). The guide rod (23) and the guide sleeve (24) are slidably connected.

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