Corn seed quality detection device

Abstract

The invention relates to the technical field of detection devices, and discloses a corn seed quality detection device which comprises a base, a rotating cylinder is rotatably mounted in the middle of the top of the base, a limiting stop block of a cambered surface structure and a positioning stop block of an annular structure are arranged on the periphery of the rotating cylinder, and a first helical rack of a cambered structure is fixedly mounted at the top of the positioning stop block. A plurality of sampling mechanisms are arranged, along with rotation of a rotary drum, when the sampling mechanisms reach a feeding starting area, corresponding electromagnetic valves are opened, then corn seeds are uniformly fed into a charging tray body through a telescopic pipe which is gradually shrunk, first-time photographing is completed through an infrared spectrum camera in a first-time detection area, and then the rotary drum continues to rotate; when the corn seeds reach the first detection area and reach the second detection area, the tray body completes 180-degree rotation, then the other faces of the sampled corn seeds face the infrared spectrum camera, the comprehensiveness of corn seed surface detection by the equipment is improved, and the detection precision is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and particularly relates to a corn seed quality detection device. Background Art

[0002] A corn seed quality detection device is a professional equipment used to evaluate the quality of corn seeds. By analyzing indicators such as the physical characteristics of seeds (such as size, color, integrity), physiological activity (such as germination rate, vigor), and composition (such as moisture content, nutrient components, pest and disease infection), it ensures that the seeds meet the sowing or storage standards. Seeds are the foundation of agricultural production, and high-quality corn seeds directly determine the germination rate, stress resistance, and final yield.

[0003] In the prior art, the conveyor belt method is often used to carry seeds through an infrared camera for detection. However, the back of the seeds has become a detection blind spot, and often some unqualified seeds are missed and not detected, resulting in low detection accuracy. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art and propose a corn seed quality detection device.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A corn seed quality detection device includes a base. A rotating cylinder is rotatably installed in the middle of the top of the base. There are a limiting block with an arc-shaped structure and a positioning block with an annular structure around the rotating cylinder. A first inclined rack with an arc-shaped structure is fixedly installed on the top of the positioning block. A boss is provided inside the rotating cylinder. The bottom of the boss is fixedly installed with the base. A second inclined rack with an arc-shaped structure is fixedly installed on the top of the boss. A plurality of sampling mechanisms are evenly arranged on the surface of the rotating cylinder in a circumferential manner. The sampling mechanism includes a tray support. One side of the tray support is fixedly installed with a main shaft. The main shaft is rotatably installed on the surface of the rotating cylinder. A second helical gear ring is fixedly sleeved on the surface of the main shaft. A semi-circular notch is formed on the other side of the tray support. A convex block is provided in the semi-circular notch of the tray support. A tray body is rotatably installed on the top of the convex block. A spiral coil stop is fixedly installed inside the tray body. A cover plate is slidably installed on the top of the tray body.

[0006] As a further solution of the present invention, both the positioning block and the limiting block are fixedly installed on the top of the base. A limiting groove adapted to the limiting block is provided on the surface of the main shaft. The main shaft is intermittently slidably connected with the limiting block. The second helical gear ring is intermittently engaged with the first inclined rack. Both the tray body and the cover plate are made of transparent materials.

[0007] As a further aspect of the present invention, two cavities are provided on both sides of the tray bracket. An electric telescopic rod and a storage battery are fixedly installed in each cavity. The telescopic ends of the two electric telescopic rods are fixedly installed on one side of the cover plate. A first helical gear ring is fixedly sleeved on the surface of the tray body. A driven bevel gear meshing with the first helical gear ring is rotatably installed on one side inside the tray bracket.

[0008] As a further aspect of the present invention, the sampling mechanism further includes a material receiving funnel and a connecting rod. The material receiving funnel is fixedly installed on the surface of the main shaft. A chute adapted to the connecting rod is provided on the surface of the main shaft. A reciprocating lead screw is rotatably installed in the chute. One end of the connecting rod is slidably installed in the chute and is threadedly connected to the reciprocating lead screw. The other end of the connecting rod is fixedly installed with an elbow. An expansion tube is connected between the elbow and the bottom end of the material receiving funnel.

[0009] As a further aspect of the present invention, one end of the reciprocating lead screw passes through the tray bracket and is fixedly installed at the rotation center on one side of the driven bevel gear. The other end of the reciprocating lead screw passes through the outer surfaces of the main shaft and the rotating cylinder and is fixedly installed with a driving bevel gear at the end. The driving bevel gear intermittently meshes with the second helical rack.

[0010] As a further aspect of the present invention, a seed distribution cylinder is fixedly installed on the top of the rotating cylinder. A conical drainage block is provided at the bottom inside the seed distribution cylinder. A plurality of discharge ports are evenly arranged in a circle at the bottom of the seed distribution cylinder. An electromagnetic valve is fixedly installed in each discharge port. The bottom end outlet of each electromagnetic valve is connected with a bent pipe leading to above the material receiving funnel. A plurality of through holes for avoiding the electromagnetic valves are provided on the surface of the rotating cylinder.

[0011] As a further aspect of the present invention, a side bracket is fixedly installed on one side of the top of the base. An infrared spectroscopic camera is fixedly installed on the top of the side bracket. The shooting end of the infrared spectroscopic camera passes through the side bracket and faces the base. A blanking funnel for collecting seeds is fixedly installed on one side of the top of the base.

[0012] As a further aspect of the present invention, a driven pulley is fixedly embedded on the surface of the rotating cylinder. A servo motor is fixedly installed on one side of the top of the base. A driving pulley is fixedly installed at the output end of the servo motor. A synchronous belt is sleeved between the driving pulley and the driven pulley.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting multiple sampling mechanisms, as the rotary drum rotates, when a sampling mechanism reaches the starting feeding area, the corresponding electromagnetic valve is opened, and then the corn seeds are evenly placed into the inner body of the feeding tray through the gradually shrinking telescopic tube. When the sampling mechanism reaches the first detection area, the transparent cover plate covers the top of the feeding tray body driven by the electric telescopic rod, and the first photograph is taken by the infrared spectroscopy camera. Then the rotary drum continues to rotate, and as the second helical gear ring on the surface of the main shaft meshes with the first rack and rotates, it drives the overall turning of the sampling mechanism until it reaches the second detection area, and the feeding tray body completes a 180-degree rotation, thus enabling the other side of the sampled corn seeds to face the infrared spectroscopy camera, improving the comprehensiveness of the equipment for detecting the surface of corn seeds and enhancing the accuracy of detection. 2. During the rotation of the rotary drum, the driving bevel gear in the sampling mechanism that is receiving materials meshes with the second rack and rotates, thereby driving the reciprocating lead screw to rotate. The reciprocating lead screw drives the connecting rod to move towards the rotary drum, thus causing the telescopic tube to contract. At the same time, the reciprocating lead screw drives the driven bevel gear to rotate, and the driven bevel gear drives the first helical gear ring to rotate, thereby driving the feeding tray body to rotate, and making the corn seeds distributed in a spiral pattern within the feeding tray body, avoiding the accumulation of corn seeds and enhancing the accuracy of the equipment for capturing unqualified corn seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a corn seed quality detection device proposed by the present invention; Figure 2 It is a schematic installation structure diagram of the rotary drum of a corn seed quality detection device proposed by the present invention; Figure 3 It is a schematic cross-sectional structure diagram of the seed distribution and collection cylinder of a corn seed quality detection device proposed by the present invention; Figure 4 It is a schematic cross-sectional structure diagram of a corn seed quality detection device proposed by the present invention; Figure 5 It is Figure 4 The enlarged structural diagram of part A in Figure 6 It is an exploded structural diagram of the sampling mechanism of a corn seed quality detection device proposed by the present invention; Figure 7 It is a schematic distribution structure diagram of the feeding tray support of a corn seed quality detection device proposed by the present invention; Figure 8 It is a schematic functional area diagram of a corn seed quality detection device proposed by the present invention.

[0015] In the figure: 1, base; 2, positioning stop block; 3, limit stop block; 4, rotary cylinder; 5, seed distribution cylinder; 501, diversion block; 502, electromagnetic valve; 6, sampling mechanism; 7, side bracket; 8, infrared spectroscopy camera; 9, blanking funnel; 10, first inclined rack; 11, driven belt pulley; 12, synchronous belt; 13, driving belt pulley; 14, servo motor; 15, convex platform; 16, second inclined rack; 17, starting feeding area; 18, first detection area; 19, second detection area; 20, blanking area; 21, tray reset area; 22, telescopic tube starting reset area; 601, tray support; 602, convex block; 603, tray body; 604, first helical gear ring; 605, main shaft; 606, second helical gear ring; 607, driven bevel gear; 608, reciprocating lead screw; 609, driving bevel gear; 610, electric telescopic rod; 611, cover plate; 612, connecting rod; 613, elbow; 614, telescopic tube; 615, material receiving funnel; 616, spiral coil retaining bar; 617, limit groove; 618, sliding groove. Detailed implementation manners

[0016] To make the technical means, creative features, achieving purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0017] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0019] Refer to Figures 1-8, A corn seed quality detection device, including a base 1. In the middle of the top of the base 1, a rotating cylinder 4 is rotatably installed. Around the rotating cylinder 4, there are a limiting block 3 with an arc-shaped structure and a positioning block 2 with an annular structure. At the top of the positioning block 2, a first inclined rack 10 with an arc-shaped structure is fixedly installed. Inside the rotating cylinder 4, there is a boss 15. The bottom of the boss 15 is fixedly installed with the base 1, and at the top of the boss 15, a second inclined rack 16 with an arc-shaped structure is fixedly installed. On the surface of the rotating cylinder 4, a plurality of sampling mechanisms 6 are evenly arranged in a circumferential manner. The sampling mechanism 6 includes a tray support 601. On one side of the tray support 601, a main shaft 605 is fixedly installed. The main shaft 605 is rotatably installed on the surface of the rotating cylinder 4. On the surface of the main shaft 605, a second helical gear ring 606 is fixedly sleeved. On the other side of the tray support 601, a semi-circular notch is formed. Inside the semi-circular notch of the tray support 601, there is a convex block 602. At the top of the convex block 602, a tray body 603 is rotatably installed. Inside the tray body 603, a spiral coil stop bar 616 is fixedly installed. On the top of the tray body 603, a cover plate 611 is slidably installed. Both the positioning block 2 and the limiting block 3 are fixedly installed on the top of the base 1. On the surface of the main shaft 605, a limiting groove 617 adapted to the limiting block 3 is formed. The main shaft 605 intermittently slides connected with the limiting block 3. The second helical gear ring 606 intermittently meshes with the first inclined rack 10. Both the tray body 603 and the cover plate 611 are made of transparent materials. On both sides of the tray support 601, two cavities are formed. Inside each cavity, an electric telescopic rod 610 and a storage battery are fixedly installed. The telescopic ends of the two electric telescopic rods 610 are fixedly installed on one side of the cover plate 611. On the surface of the tray body 603, a first helical gear ring 604 is fixedly sleeved. Inside the tray support 601, on one side, a driven bevel gear 607 meshing with the first helical gear ring 604 is rotatably installed.

[0020] When in use, by setting a plurality of sampling mechanisms 6, as the rotating cylinder 4 rotates, when the sampling mechanism 6 reaches the starting feeding area 17, the corresponding electromagnetic valve 502 is opened, and then the corn seeds are evenly placed in the tray body 603 through the gradually shrinking telescopic tube 614. When the sampling mechanism 6 reaches the first detection area 18, the transparent cover plate 611 is driven by the electric telescopic rod 610 to cover the top of the tray body 603 and a first photograph is taken by the infrared spectroscopic camera 8. Then the rotating cylinder 4 continues to rotate, and as the second helical gear ring 606 on the surface of the main shaft 605 meshes with the first inclined rack 10 and rotates, it drives the whole sampling mechanism 6 to flip until it reaches the second detection area 19, and the tray body 603 completes a 180-degree rotation, so that the other side of the sampled corn seeds faces the infrared spectroscopic camera 8, improving the comprehensiveness of the surface detection of corn seeds by the device and the accuracy of the detection.

[0021] In this embodiment, the sampling mechanism 6 further includes a material receiving funnel 615 and a connecting rod 612. The material receiving funnel 615 is fixedly installed on the surface of the main shaft 605. A chute 618 adapted to the connecting rod 612 is provided on the surface of the main shaft 605. A reciprocating lead screw 608 is rotatably installed in the chute 618. One end of the connecting rod 612 is slidably installed in the chute 618 and is threadedly connected to the reciprocating lead screw 608. The other end of the connecting rod 612 is fixedly installed with an elbow 613. A telescopic tube 614 is connected between the elbow 613 and the bottom end of the material receiving funnel 615. One end of the reciprocating lead screw 608 passes through the material tray support 601 and is fixedly installed at the rotation center on one side of the driven bevel gear 607. The other end of the reciprocating lead screw 608 passes through the outer surfaces of the main shaft 605 and the rotary drum 4 and is fixedly installed with a driving bevel gear 609 at the end. The driving bevel gear 609 intermittently meshes with the second inclined rack 16.

[0022] During use, during the rotation of the rotary drum 4, the driving bevel gear 609 in the sampling mechanism 6 that is receiving materials meshes with the second inclined rack 16 and rotates, thereby driving the reciprocating lead screw 608 to rotate. The reciprocating lead screw 608 drives the connecting rod 612 to move towards the rotary drum 4, thereby causing the telescopic tube 614 to contract. At the same time, the reciprocating lead screw 608 drives the driven bevel gear 607 to rotate, and the driven bevel gear 607 drives the first helical ring 604 to rotate, thereby driving the material tray body 603 to rotate, so that the corn seeds are distributed in a spiral shape in the material tray body 603, avoiding the accumulation of corn seeds and improving the accuracy of the equipment for capturing unqualified corn seeds.

[0023] In this embodiment, a seed distributing cylinder 5 is fixedly installed at the top of the rotary drum 4. A drainage block 501 with a conical structure is provided at the bottom inside the seed distributing cylinder 5. A plurality of discharge ports are evenly arranged in a circle at the bottom of the seed distributing cylinder 5. An electromagnetic valve 502 is fixedly installed in each discharge port. The bottom outlet of each electromagnetic valve 502 is connected to a bent pipe that drains to above the material receiving funnel 615. A plurality of through holes for avoiding the electromagnetic valves 502 are provided on the surface of the rotary drum 4. A side bracket 7 is fixedly installed on one side of the top of the base 1. An infrared spectroscopic camera 8 is fixedly installed at the top of the side bracket 7. The shooting end of the infrared spectroscopic camera 8 passes through the side bracket 7 and faces the base 1. A blanking funnel 9 for collecting seeds is fixedly installed on one side of the top of the base 1. A driven pulley 11 is fixedly embedded on the surface of the rotary drum 4. A servo motor 14 is fixedly installed on one side of the top of the base 1. A driving pulley 13 is fixedly installed at the output end of the servo motor 14. A synchronous belt 12 is sleeved between the driving pulley 13 and the driven pulley 11.

[0024] During use, the servo motor 14 drives the rotary drum 4 to rotate through the driving pulley 13, the driven pulley 11 and the synchronous belt 12, thereby sequentially sampling, detecting and discharging materials with a plurality of sampling mechanisms 6, enabling the detection process to continue continuously and improving the detection efficiency of the equipment.

[0025] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: By setting the functional areas on the top of the base 1 in sequence as the starting feeding area 17, the first detection area 18, the second detection area 19, the blanking area 20, the tray reset area 21, and the telescopic tube starting reset area 22. As the rotating cylinder 4 rotates, when the sampling mechanism 6 reaches the starting feeding area 17, the corresponding electromagnetic valve 502 is opened, and then the corn seeds are evenly placed into the tray body 603 through the gradually shrinking telescopic tube 614. When the sampling mechanism 6 reaches the first detection area 18, the transparent cover plate 611 covers the top of the tray body 603 driven by the electric telescopic rod 610 and takes the first photo through the infrared spectroscopy camera 8. Then the rotating cylinder 4 continues to rotate, and as the second helical gear ring 606 on the surface of the main shaft 605 meshes with the first helical rack 10 and rotates, it drives the overall turnover of the sampling mechanism 6 until it reaches the second detection area 19, and the tray body 603 rotates 180 degrees, so that the other side of the sampled corn seeds faces the infrared spectroscopy camera 8, improving the comprehensiveness of the equipment for detecting the surface of corn seeds and the accuracy of detection; Then the rotating cylinder 4 continues to rotate, and the second helical gear ring 606 in the sampling mechanism 6 continues to mesh with the first helical rack 10 until the opening of the tray body 603 faces upward. At this time, the sampling mechanism 6 is in the tray reset area 21. After that, the main shaft 605 is slidably connected to the limit block 3 through the limit groove 617, so that the tray body 603 remains stable. When the sampling mechanism 6 reaches the telescopic tube starting reset area 22, the driving bevel gear 609 starts to mesh with the second helical rack 16, and then the reciprocating screw rod 608 starts to rotate, driving the connecting rod 612 to move until the elbow 613 is brought above the center of the tray body 603. At this time, the sampling mechanism 6 reaches the starting feeding area 17 again. Through the setting of multiple sampling mechanisms 6, the device can continuously sample, detect, and discharge materials, with high detection accuracy.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A corn seed quality detection device, comprising a base (1), characterized in that, A rotating cylinder (4) is rotatably installed in the middle of the top of the base (1). A limiting stop block (3) with an arc-shaped structure and a positioning stop block (2) with an annular structure are arranged around the rotating cylinder (4). A first inclined rack (10) with an arc-shaped structure is fixedly installed on the top of the positioning stop block (2). A boss (15) is arranged inside the rotating cylinder (4). The bottom of the boss (15) is fixedly installed with the base (1). A second inclined rack (16) with an arc-shaped structure is fixedly installed on the top of the boss (15). A plurality of sampling mechanisms (6) are evenly arranged on the surface of the rotating cylinder (4) in a circumferential manner. The sampling mechanism (6) includes a tray support (601). One side of the tray support (601) is fixedly installed with a main shaft (605). The main shaft (605) is rotatably installed on the surface of the rotating cylinder (4). A second helical gear ring (606) is fixedly sleeved on the surface of the main shaft (605). A semi-circular notch is formed on the other side of the tray support (601). A convex block (602) is arranged in the semi-circular notch of the tray support (601). A tray body (603) is rotatably installed on the top of the convex block (602). A spiral coil stop bar (616) is fixedly installed inside the tray body (603). A cover plate (611) is slidably installed on the top of the tray body (603).

2. The maize seed quality detection device according to claim 1, characterized in that, Both the positioning stop block (2) and the limiting stop block (3) are fixedly installed on the top of the base (1). A limiting groove (617) adapted to the limiting stop block (3) is formed on the surface of the main shaft (605). The main shaft (605) is intermittently slidably connected with the limiting stop block (3). The second helical gear ring (606) is intermittently meshed with the first inclined rack (10). Both the tray body (603) and the cover plate (611) are made of transparent materials.

3. The maize seed quality detection device according to claim 2, characterized in that, Two cavities are formed on both sides of the tray support (601). An electric telescopic rod (610) and a storage battery are fixedly installed in each cavity. The telescopic ends of the two electric telescopic rods (610) are fixedly installed with one side of the cover plate (611). A first helical gear ring (604) is fixedly sleeved on the surface of the tray body (603). A driven bevel gear (607) meshing with the first helical gear ring (604) is rotatably installed on one side inside the tray support (601).

4. A maize seed quality detection device according to claim 1, characterized in that, The sampling mechanism (6) further includes a material receiving funnel (615) and a connecting rod (612). The material receiving funnel (615) is fixedly installed on the surface of the main shaft (605). A chute (618) adapted to the connecting rod (612) is formed on the surface of the main shaft (605). A reciprocating lead screw (608) is rotatably installed in the chute (618). One end of the connecting rod (612) is slidably installed in the chute (618) and is threadedly connected with the reciprocating lead screw (608). The other end of the connecting rod (612) is fixedly installed with an elbow (613). An expansion pipe (614) is connected between the elbow (613) and the bottom end of the material receiving funnel (615).

5. The maize seed quality detection device according to claim 4, characterized in that, One end of the reciprocating lead screw (608) passes through the tray support (601) and is fixedly installed at the rotation center on one side of the driven bevel gear (607). The other end of the reciprocating lead screw (608) passes through the outer surfaces of the main shaft (605) and the rotating cylinder (4) and is fixedly installed with a driving bevel gear (609) at the end. The driving bevel gear (609) intermittently meshes with the second inclined rack (16).

6. The maize seed quality detection device according to claim 1, characterized in that, A seed distribution cylinder (5) is fixedly installed at the top of the rotating cylinder (4). A drainage block (501) with a conical structure is arranged at the inner bottom of the seed distribution cylinder (5). A plurality of discharge ports are evenly arranged in a circle at the bottom of the seed distribution cylinder (5). An electromagnetic valve (502) is fixedly installed in each discharge port. The bottom end outlet of each electromagnetic valve (502) is connected with a bent pipe that drains to above the receiving funnel (615). A plurality of through holes for avoiding the electromagnetic valve (502) are arranged on the surface of the rotating cylinder (4).

7. The maize seed quality detection device according to claim 1, characterized in that, A side support (7) is fixedly installed on one side of the top of the base (1). An infrared spectral camera (8) is fixedly installed on the top of the side support (7). The shooting end of the infrared spectral camera (8) passes through the side support (7) and faces the base (1). A blanking funnel (9) for collecting seeds is fixedly installed on one side of the top of the base (1).

8. A maize seed quality detection device according to claim 1, characterized in that, A driven pulley (11) is fixedly embedded on the surface of the rotating cylinder (4). A servo motor (14) is fixedly installed on one side of the top of the base (1). A driving pulley (13) is fixedly installed at the output end of the servo motor (14). A synchronous belt (12) is sleeved between the driving pulley (13) and the driven pulley (11).

Images