A machine vision dynamic weighing system for lobster grading

Abstract

The invention discloses a machine vision dynamic weighing system for lobster grading in the field of lobster breeding technology, comprising a side mounting frame, an upper fixing piece is fixedly mounted on the upper end of the side mounting frame, a lower fixing piece is fixedly mounted on the lower end of the side mounting frame, a middle material dividing piece is rotatably mounted between the lower fixing piece and the upper fixing piece, an upper material dividing piece is rotatably mounted on the upper surface of the upper fixing piece, a lower material dividing piece is rotatably mounted on the lower surface of the lower fixing piece, an inner mounting ring is rotatably mounted on the upper ends of the lower material dividing piece, a plurality of inclined plates are fixedly mounted on the inner mounting ring, a visual recognition device is fixedly mounted on the lower surface of the inclined plate, and a lighting strip is fixedly mounted on the lower surface of the inner mounting ring. The invention provides a system that can quickly weigh the weight of lobsters after grading, avoids the trouble of repeatedly transporting lobsters, enables lobster weighing and grading to be performed simultaneously, shortens the weighing time, and improves the weighing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of lobster breeding, and in particular to a machine vision dynamic weighing system for lobster grading. Background Art

[0002] After lobster farming is fished, there are differences in the production sizes of lobsters, so the lobsters need to be graded according to size before they enter the market for sale. After grading, the graded lobsters need to be weighed to determine the production of lobsters of different grades.

[0003] The existing lobster grading and weighing is to use the grading equipment to grade the lobsters according to size, and then transfer the lobsters of different grades to the weighing equipment in turn, and then transfer them to the lobster sales area after gravity calculation and weighing. The lobsters need to be weighed and transferred frequently, which is cumbersome to operate. In addition, the lobsters have a limited time out of water. Multiple transfers have a limited impact on the life of the lobsters. Repeatedly adding water to maintain the life of the lobsters will increase the water filtration time before weighing, making the weighing efficiency even lower. Moreover, weighing after grading cannot detect the weight changes of the lobsters before and after and during the process in real time.

[0004] Based on this, the present invention designs a machine vision dynamic weighing system for lobster grading to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a machine vision dynamic weighing system for lobster grading, so as to provide a method for quickly weighing the weight of lobsters after grading, avoiding the trouble of repeatedly transporting lobsters, so that lobster weighing and grading can be carried out simultaneously to shorten the weighing time and improve the weighing efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A machine vision dynamic weighing system for lobster grading comprises a side mounting frame, an upper fixing piece is fixedly mounted on the upper end of the side mounting frame, a lower fixing piece is fixedly mounted on the lower end of the side mounting frame, a middle dividing piece is rotatably mounted between the lower fixing piece and the upper fixing piece, an upper dividing piece is rotatably mounted on the upper surface of the upper fixing piece, a lower dividing piece is rotatably mounted on the lower surface of the lower fixing piece, an inner mounting ring is rotatably mounted on the upper ends of the lower dividing piece, a plurality of inclined plates are fixedly mounted on the inner mounting ring, a visual recognition device is fixedly mounted on the lower surface of the inclined plate, and a lighting strip is fixedly mounted on the lower surface of the inner mounting ring.

[0008] Preferably, a support frame is fixedly mounted on one side of the side mounting frame, a support base plate is fixedly mounted on the lower end of the support frame, and a bearing member is fixedly mounted on the upper surface of the support base plate.

[0009] Preferably, a plurality of upper sieve holes are opened below the upper material dividing piece, a plurality of middle sieve holes are opened on the middle material dividing piece, a plurality of lower sieve holes are opened on the lower surface of the lower material dividing piece, and the apertures of the upper sieve holes, the middle sieve holes and the lower sieve holes gradually decrease.

[0010] Preferably, a connecting piece is fixedly mounted on the side mounting frame at one side, a connecting shaft is rotatably mounted on the connecting piece, an active disk is fixedly mounted on the upper end of the connecting shaft, and a toggle rod is fixedly mounted on one side of the upper surface of the active disk.

[0011] Preferably, an extension frame is fixedly mounted on the lower surface of one end of the connecting member away from the side mounting frame, a transmission rod is rotatably mounted on the extension frame, a follower is fixedly mounted on the upper end of the transmission rod, and the upper end of the toggle rod is embedded between the followers.

[0012] Preferably, a plurality of mounting plates are fixedly mounted on the transmission rod, a plurality of electric telescopic rods are fixedly mounted on the upper surface of the mounting plates, a side gear is fixedly mounted on the upper end of the electric telescopic rod, and the side gear is slidably connected to the transmission rod.

[0013] Preferably, a connecting disk is fixedly mounted on the upper surfaces of the upper dividing member, the middle dividing member and the lower dividing member, and an outer gear ring is rotatably mounted on the outer side of the connecting disk, and the outer gear ring can mesh with the side gear.

[0014] Preferably, a driving motor is fixedly mounted on a side of the extension frame away from the transmission rod, and an output end of the driving motor is fixedly connected to the connecting shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts the design of a side mounting frame, and the installation method of the upper fixing part, the lower fixing part and the middle dividing part, as well as the rotating device therebetween, is more flexible than the traditional installation method to provide a better field of view and space utilization; the sieve hole design on the upper dividing part, the middle dividing part and the lower dividing part, and the gradually decreasing aperture may help to distinguish the size of lobsters more finely, thereby improving the grading accuracy and efficiency of the system; the combination of the connecting part, the connecting shaft, the transmission rod and the driven part constitutes a transmission device, which realizes the synchronous movement between the dividing parts through the output of the driving motor; the combination of the electric telescopic rod and the side gear provides a smoother and more precise transmission effect, thereby ensuring the stability and reliability of the system; the visual recognition device installed on the inclined plate and the lighting strip below help the system to more accurately identify and classify lobsters, thereby ensuring the accuracy of visual recognition. In the present invention, during the lobster grading process, the visual recognition device calculates the weight of the lobsters in the divided material pieces. The calculation is continuous, which is convenient for comparing the weight changes before and after grading, and grading and weight weighing are carried out simultaneously, which shortens the weighing time, avoids the trouble of transportation, and improves the weighing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention from a front side perspective;

[0018] Figure 2 For the present invention Figure 1 Partial schematic diagram of the structure at A in the middle

[0019] Figure 3 This is a schematic diagram of the side view structure of the present invention;

[0020] Figure 4 For the present invention Figure 3 A partial schematic diagram of the structure at B in the middle;

[0021] Figure 5 It is a structural cross-sectional view of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Side mounting frame; 2. Support frame; 3. Support base plate; 4. Bearing member; 5. Lower fixing member; 6. Upper fixing member; 7. Upper material dividing member; 8. Middle material dividing member; 9. Lower material dividing member; 10. External gear ring; 11. Extension frame; 12. Transmission rod; 13. Mounting plate; 14. Driving motor; 15. Connecting member; 16. Active plate; 17. Connecting shaft; 18. Toggle rod; 19. Follower; 20. Inner mounting ring; 21. Inclined plate; 22. Visual recognition device; 23. Light strip; 24. Connecting plate; 25. Side gear; 26. Upper sieve hole; 27. Electric telescopic rod; 28. Middle sieve hole; 29. ​​Lower sieve hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 5 , the present invention provides a technical solution:

[0026] A machine vision dynamic weighing system for lobster grading comprises a side mounting frame 1, an upper fixing member 6 is fixedly mounted on the upper end of the side mounting frame 1, a lower fixing member 5 is fixedly mounted on the lower end of the side mounting frame 1, a middle material dividing member 8 is rotatably mounted between the lower fixing member 5 and the upper fixing member 6, an upper material dividing member 7 is rotatably mounted on the upper surface of the upper fixing member 6, a lower material dividing member 9 is rotatably mounted on the lower surface of the lower fixing member 5, an inner mounting ring 20 is rotatably mounted on the upper ends of the lower material dividing member 9, the middle material dividing member 8 and the upper material dividing member 7, a plurality of inclined plates 21 are fixedly mounted on the inner mounting ring 20, a visual recognition device 22 is fixedly mounted on the lower surface of the inclined plate 21, and a lighting strip 23 is fixedly mounted on the lower surface of the inner mounting ring 20.

[0027] A support frame 2 is fixedly mounted on one side of the side mounting frame 1 , a support base plate 3 is fixedly mounted on the lower end of the support frame 2 , and a bearing member 4 is fixedly mounted on the upper surface of the support base plate 3 .

[0028] Among them, a plurality of upper sieve holes 26 are opened below the upper dividing piece 7, a plurality of middle sieve holes 28 are opened on the middle dividing piece 8, and a plurality of lower sieve holes 29 are opened on the lower surface of the lower dividing piece 9. The apertures of the upper sieve holes 26, the middle sieve holes 28 and the lower sieve holes 29 gradually decrease.

[0029] A connecting piece 15 is fixedly mounted on one side of the side mounting frame 1 , a connecting shaft 17 is rotatably mounted on the connecting piece 15 , an active disk 16 is fixedly mounted on the upper end of the connecting shaft 17 , and a toggle rod 18 is fixedly mounted on one side of the upper surface of the active disk 16 .

[0030] An extension frame 11 is fixedly mounted on the lower surface of one end of the connecting member 15 away from the side mounting frame 1 , a transmission rod 12 is rotatably mounted on the extension frame 11 , a follower 19 is fixedly mounted on the upper end of the transmission rod 12 , and the upper end of the toggle rod 18 is embedded between the followers 19 .

[0031] Among them, multiple groups of mounting plates 13 are fixedly installed on the transmission rod 12, and multiple electric telescopic rods 27 are fixedly installed on the upper surface of the mounting plates 13. The upper ends of the electric telescopic rods 27 are fixedly installed with side gears 25, and the side gears 25 are slidably connected to the transmission rod 12.

[0032] The upper surfaces of the upper dividing piece 7 , the middle dividing piece 8 and the lower dividing piece 9 are all fixedly mounted with connecting disks 24 , and the outer side of the connecting disks 24 is rotatably mounted with an outer gear ring 10 , which can mesh with the side gear 25 .

[0033] A driving motor 14 is fixedly mounted on a side of the extension frame 11 away from the transmission rod 12 , and an output end of the driving motor 14 is fixedly connected to a connecting shaft 17 .

[0034] In the present invention, the lobster is injected into the upper material dividing member 7 from above. After the injection, the driving motor 14 drives the connecting shaft 17 to rotate, the connecting shaft 17 rotates to drive the active disk 16 to rotate, the active disk 16 rotates to drive the toggle rod 18 to rotate, the toggle rod 18 rotates to drive the driven member 19 to swing left and right, the driven member 19 swings to drive the transmission rod 12 to rotate forward and reverse continuously, the transmission rod 12 rotates to drive the outer gear ring 10 to rotate through the side gear 25, thereby driving the outer gear ring 10 to rotate back and forth continuously, thereby driving the upper material dividing member 7 and the middle material dividing member 7 to rotate. The material pieces 8 and the lower material pieces 9 are continuously rotated forward and backward, and the lobsters thereon are caused to fall from the upper sieve holes 26, the middle sieve holes 28 and the lower sieve holes 29 through the continuous rotation of the upper material pieces 7, the middle material pieces 8 and the lower material pieces 9. When the weight of the upper material pieces 7, the middle material pieces 8 and the lower material pieces 9 no longer changes, it indicates that the grading of the lobsters of the corresponding grade is completed. At this time, the electric telescopic rod 27 at the corresponding position contracts and drives the corresponding side gear 25 to move downward, so that the upper material pieces 7, the middle material pieces 8 or the lower material pieces 9 that have completed the grading stop rotating.

[0035] In the present invention, during the lobster grading process, the visual recognition device 22 calculates the weight of the lobsters in the divided material pieces. The calculation is continuous to facilitate the comparison of the weight changes before and after grading, and the grading and weight weighing are carried out simultaneously, which shortens the weighing time, avoids the trouble of transportation, and improves the weighing efficiency.

[0036] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A machine vision dynamic weighing system for lobster grading, comprising a side mounting frame (1), characterized in that: An upper fixing member (6) is fixedly mounted on the upper end of the side mounting frame (1), a lower fixing member (5) is fixedly mounted on the lower end of the side mounting frame (1), a middle material dividing member (8) is rotatably mounted between the lower fixing member (5) and the upper fixing member (6), an upper material dividing member (7) is rotatably mounted on the upper surface of the upper fixing member (6), a lower material dividing member (9) is rotatably mounted on the lower surface of the lower fixing member (5), an inner mounting ring (20) is rotatably mounted on the upper ends of the lower material dividing member (9), the middle material dividing member (8) and the upper material dividing member (7), a plurality of inclined plates (21) are fixedly mounted on the inner mounting ring (20), a visual recognition device (22) is fixedly mounted on the lower surface of the inclined plate (21), and a lighting strip (23) is fixedly mounted on the lower surface of the inner mounting ring (20); A connecting piece (15) is fixedly mounted on the side mounting frame (1) on one side, a connecting shaft (17) is rotatably mounted on the connecting piece (15), an active disk (16) is fixedly mounted on the upper end of the connecting shaft (17), and a toggle rod (18) is fixedly mounted on one side of the upper surface of the active disk (16); An extension frame (11) is fixedly mounted on the lower surface of one end of the connecting member (15) away from the side mounting frame (1), a transmission rod (12) is rotatably mounted on the extension frame (11), and a follower (19) is fixedly mounted on the upper end of the transmission rod (12); The rotation of the connecting shaft (17) drives the driving disk (16) and the toggle rod (18) to rotate in turn. The toggle rod (18) is embedded between the driven members (19) and drives the driven members (19) to swing, thereby driving the transmission rod (12) to rotate forward and reverse, thereby realizing the forward and reverse rotation of the upper material dividing member (7), the middle material dividing member (8) and the lower material dividing member (9).

2. A machine vision dynamic weighing system for lobster grading according to claim 1, characterized in that: A support frame (2) is fixedly mounted on one side of the side mounting frame (1), a support base plate (3) is fixedly mounted on the lower end of the support frame (2), and a bearing member (4) is fixedly mounted on the upper surface of the support base plate (3).

3. A machine vision dynamic weighing system for lobster grading according to claim 2, characterized in that: A plurality of upper sieve holes (26) are provided below the upper material dividing member (7), a plurality of middle sieve holes (28) are provided on the middle material dividing member (8), and a plurality of lower sieve holes (29) are provided on the lower surface of the lower material dividing member (9), wherein the apertures of the upper sieve holes (26), the middle sieve holes (28) and the lower sieve holes (29) gradually decrease.

4. A machine vision dynamic weighing system for lobster grading according to claim 1, characterized in that: A plurality of mounting plates (13) are fixedly mounted on the transmission rod (12); a plurality of electric telescopic rods (27) are fixedly mounted on the upper surface of the mounting plates (13); a side gear (25) is fixedly mounted on the upper end of each of the electric telescopic rods (27); and the side gear (25) is slidably connected to the transmission rod (12).

5. A machine vision dynamic weighing system for lobster grading according to claim 4, characterized in that: A connecting disk (24) is fixedly mounted on the upper surfaces of the upper dividing member (7), the middle dividing member (8) and the lower dividing member (9), and an outer gear ring (10) is rotatably mounted on the outer side of the connecting disk (24), and the outer gear ring (10) is capable of meshing with the side gear (25).

6. A machine vision dynamic weighing system for lobster grading according to claim 1, characterized in that: A drive motor (14) is fixedly mounted on a side of the extension frame (11) away from the transmission rod (12), and an output end of the drive motor (14) is fixedly connected to the connection shaft (17).

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