Multi-channel automatic seed feeding high-speed counting device

Abstract

This invention belongs to the field of micro-material conveying and counting, specifically relating to a high-speed counting device for automatic seed source dispensing in multiple channels. It includes a cabinet, a dispensing system, and a control mechanism; both the dispensing system and the control mechanism are located inside the cabinet. The dispensing system includes a seed source arrangement and filling mechanism, and a seed source transmission and counting mechanism. Its advantages are: the device can automatically dispense sealed seed sources through multiple channels; seed source dispensing and counting in each channel can be performed independently or simultaneously, and the dispensing speed is adjustable; seed source dispensing in each channel can be counted continuously or quantitatively; seed source counting is ensured by monitoring and verifying through multiple sensors, resulting in accurate counting, high efficiency, adjustable dispensing speed, quantitative and accurate counting, and batch and quantitative packaging of seed sources; during seed source counting, contact between humans and radiation sources is reduced, effectively lowering the radiation dose to the human body, ensuring high safety.

Description

Technical Field

[0001] This invention belongs to the field of micro-material conveying and counting, specifically relating to a multi-channel automatic seed source high-speed counting device. Background Technology

[0002] Currently, radioactive seed brachytherapy has been widely used in the clinical treatment of tumors. Radioactive seed brachytherapy for tumors involves implanting a miniature radioactive source (sealed seed source) into the tumor or tissue infiltrated by the tumor. The continuous low-energy rays emitted by the miniature radioactive source cause maximum destructive damage to the tumor tissue, while leaving normal tissue undamaged or only minimally damaged.

[0003] With iodine 125 Taking the sealed seed source as an example, its outer shell material is a titanium tube with an outer diameter of 0.8mm, a length of 4.5mm, and a wall thickness of 0.05mm. The core material is a silver wire with dimensions of φ0.5X3mm, and the surface of the silver wire is plated with iodine. 125 I isotopes. Due to their very small size, they are called sealed seed sources. Because of their small size, sealed seed sources require accurate counting during production. The traditional method is manual counting, which is not only time-consuming, labor-intensive, inefficient, and prone to errors, but also exposes operators to high levels of radiation from prolonged and large-scale operations.

[0004] Currently, some seed source counting devices used in the field of nuclear medicine still require manual intervention for the classification, accurate quantity counting, and recording of each batch of seed sources for mass production. This not only frequently causes counting errors but also brings a series of problems that need to be solved for the radiation protection of staff.

[0005] Chinese Patent Publication No. CN 207020319 U discloses a radioactive particle counting device. This device has a simple structure. However, the disclosed automatic counting equipment for sealed seed sources can only achieve a simple count of the seed source quantity, and still suffers from problems such as low counting efficiency, inability to quantitatively count, and lack of verification of statistical data accuracy. There is a need to design a device that can achieve quantitative counting of seed sources, high counting accuracy, high seed source counting efficiency, and facilitate further large-scale automated packaging of seed sources. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-channel automatic high-speed counting device for seed sources. It has a compact overall structure and small size, and can complete multi-channel, high-speed, and accurate quantitative counting of seed sources. Each channel can be controlled independently, and the feeding speed is adjustable, which can effectively complete the quantitative counting of seed sources.

[0007] The technical solution of the present invention is as follows: a multi-channel automatic seed source high-speed counting device, comprising a cabinet, a feeding system and a control mechanism; the feeding system and the control mechanism are both located inside the cabinet.

[0008] The cabinet includes a top cover, two side panels, a front panel, a rear panel, and a bottom panel. The top cover, two side panels, front panel, rear panel, and bottom panel are connected together to form a closed cabinet structure.

[0009] The top cover is equipped with a sliding door.

[0010] The feeding system includes a seed source arrangement and filling mechanism, a seed source conveying and counting mechanism.

[0011] The seed source arrangement and filling mechanism includes a feeding trough, a linear vibrator, a seed source arrangement and filling mechanism support, a vibrating plate, and a material distribution beam. The seed source arrangement and filling mechanism support is a frame structure, fixed inside the cabinet on one side. A linear vibrator is provided on the seed source arrangement and filling mechanism support, a vibrating plate is provided on the upper part of the linear vibrator, a feeding trough is provided on the upper part of the vibrating plate, and a seed source through groove is provided on the vibrating plate.

[0012] A material distribution beam is provided between the bottom of the feed trough and the vibrating plate. The material distribution beam is located at the bottom of the feed trough and is installed between the seed source channels on the vibrating plate. A Teflon tube is also connected to the side end of the vibrating plate.

[0013] The seed source transmission and counting mechanism includes a feeding fixing plate, a stepper motor, a rotary guide rail, a vertical feeding rotary head, a Teflon fluoropolymer tube, a Hall sensor fixing block, and a seed source container. The feeding fixing plate is fixed on the seed source transmission and counting mechanism support frame, the rotary guide rail is fixed on the feeding fixing plate, the stepper motor and the seed source detection sensor bracket are respectively installed on the feeding fixing plate, located on both sides of the rotary guide rail, the drive shaft of the stepper motor is connected to the vertical feeding rotary head, the vertical feeding rotary head is located in the internal gap of the rotary guide rail, one end of the Teflon fluoropolymer tube is fixed on the rotary guide rail, located directly above the vertical feeding rotary head, and the seed source container is located at the outlet directly below the vertical feeding rotary head.

[0014] One end of the vertical feeding rotary head is a hollow annular structure with a seed source receiving hole on its outer edge. The other end of the vertical feeding rotary head has a protruding positioning block on its outer edge, corresponding to the seed source receiving hole. A further feature of the vertical feeding rotary head is that the symmetrical receiving holes can be designed at different angular intervals, allowing each device to be equipped with a vertical feeding rotary head with a different number of openings to adjust the seed source feeding speed.

[0015] The control mechanism includes a human-machine interface device, a power switch, a Hall sensor, a seed source detection sensor, a seed source discharge sensor, a PLC logic controller, and a system electrical module. The Hall sensor and system electrical module are located inside the cabinet, while the human-machine interface device, power switch, and emergency stop button are located on the front panel of the cabinet. The human-machine interface device is connected to the PLC logic controller, and the Hall sensor, seed source detection sensor, and seed source discharge sensor are connected to the PLC logic controller via a digital input / output (I / O) module.

[0016] The Hall sensor is fixed on the rotary guide rail by the Hall sensor fixing block and is located above the vertical feeding rotary head. The seed source detection sensor is installed on the seed source detection sensor bracket and is directly opposite the vertical feeding rotary head. The seed source dropping sensor is installed below the feeding fixing plate and is directly opposite the discharge port.

[0017] The beneficial effects of this invention are as follows: The feeding system of this invention adopts a combined feeding mode of linear vibrator and stepper motor to achieve precise and high-speed feeding, and the feeding quantity can be set arbitrarily; the device can complete automatic feeding of sealed seed sources through multiple channels; the seed source feeding count of each seed source channel can be performed independently or simultaneously, and the feeding speed is adjustable; the seed source feeding of each channel can be counted continuously or quantitatively; the seed source counting is ensured by monitoring and verification by multiple sensors to ensure accurate seed source counting, which is not only accurate but also highly efficient, realizing adjustable seed source feeding speed, quantitative and accurate counting, and enabling batch and quantitative packaging of seed sources; when counting seed sources, the contact between people and radiation sources is reduced, effectively reducing the radiation dose to the human body from the seed sources, and ensuring high safety; at the same time, it also has the advantages of compact structure, small size, and strong practicality. Attached Figure Description

[0018] Figure 1 A perspective view of the multi-channel automatic seed source high-speed counting device provided by the present invention;

[0019] Figure 2 This is a side view of the internal structure of the multi-channel seed source automatic feeding high-speed counting device provided by the present invention;

[0020] Figure 3 This is an isometric side view of the internal structure of the multi-channel seed source automatic feeding high-speed counting device provided by the present invention;

[0021] Figure 4 This is a top view of the internal structure of the multi-channel seed source automatic feeding high-speed counting device provided by the present invention;

[0022] Figure 5 This is a schematic diagram of a vertical feeding rotary head;

[0023] Figure 6 This is an isometric side view of the vertical unloading rotary head;

[0024] Figure 7 This is a schematic diagram of the control structure of the multi-channel seed source automatic feeding high-speed counting device provided by the present invention.

[0025] In the diagram, 1 is the sliding door, 2 is the human-machine interface device, 3 is the power switch, 4 is the seed source container, 5 is the fluoropolymer tubing, 6 is the Hall sensor, 7 is the stepper motor, 8 is the seed source detection sensor, 9 is the material feeding fixing plate, 10 is the rotary guide rail, 11 is the seed source dropping sensor, 12 is the seed source detection sensor bracket, 13 is the discharge port, 14 is the feeding trough, 15 is the linear vibrator, 16 is the seed source arranging and filling mechanism bracket, 17 is the Hall sensor fixing block, 18 is the vertical material feeding rotary head, 19 is the seed source arranging and filling mechanism, 20 is the seed source transmission and counting mechanism, 21 is the vibrating plate, 22 is the material distribution beam, 23 is the seed source through slot, 24 is the PLC logic controller, 25 is the top cover plate, 26 is the front panel, 27 is the emergency stop button, 28 is the raised positioning block, 29 is the seed source receiving hole, 30 is the seed source detector bracket, 31 is the seed source transmission and counting mechanism support frame, and 32 is the system electrical module. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to specific embodiments. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in the art or in accordance with the product manual.

[0027] like Figure 1-4 As shown, the multi-channel automatic seed source high-speed counting device includes a cabinet, a feeding system, and a control mechanism.

[0028] like Figure 1 As shown, the cabinet includes a top cover 25, two side panels, a front panel 26, a rear panel, and a bottom panel. These components are connected to form a closed cabinet structure. The front panel 26 is equipped with a human-machine interface 2, a power switch 3, and an emergency stop button 27. The top cover 25 is detachable and features a sliding door 1 as a material loading window, located on the lower side of one side of the cabinet (e.g.,...). Figure 1 Seed source receiving container 4 is provided in the lower right corner of the diagram; the feeding system and control mechanism are both located inside the cabinet.

[0029] like Figure 4 As shown, the feeding system includes a seed source arrangement and filling mechanism 19 and a seed source transmission and counting mechanism 20.

[0030] like Figure 2-5As shown, the seed source arranging and filling mechanism 19 includes a feed trough 14, a linear vibrator 15, a seed source arranging and filling mechanism support 16, a vibrating plate 21, and a distribution beam 22; wherein, the seed source arranging and filling mechanism support 16 is a frame structure, fixed to the bottom plate of the cabinet and located on one side inside the cabinet (e.g., Figure 3 (As shown on the right), a linear vibrator 15 is installed on the seed source arrangement and filling mechanism support 16. A vibrating plate 21 is installed on the upper part of the linear vibrator 15. A feeding trough 14 is installed on the upper part of the vibrating plate 21. The feeding trough 14 is used for storing batches of seed sources. Several seed source channels 23 are arranged on the vibrating plate 21. A distribution beam 22 is also installed between the bottom of the feeding trough 14 and the vibrating plate 21. The distribution beam 22 is located at the bottom of the feeding trough 14 and installed between the seed source channels 23 on the vibrating plate 21. Under the action of the linear vibrator 15, the seed sources fall from the feeding trough 14. The distribution beam 22 can ensure that the seed sources are arranged individually and orderly in the seed source channels 23. The seed sources are arranged individually and sequentially in the seed source channels 23 and vibrate forward. The side end of the vibrating plate 21 is also connected to several Teflon tubes 5 (4 in this embodiment). The number of seed source channels 23 on the vibrating plate 21 is the same as the number of Teflon tubes 5, and the seed source channels 23 are connected to one end of the Teflon tubes 5.

[0031] The linear vibrator 15 is electrically connected to a control mechanism and can generate vibrations at a set frequency and amplitude.

[0032] The embodiments of the present invention use a four-channel example to illustrate the device operation process. For example... Figure 2 and 3 As shown, the seed source transmission and counting mechanism 20 includes a feeding fixing plate 9, a stepper motor 7 arranged side by side, a rotary guide rail 10, a vertical feeding rotary head 18, a Teflon fluoropolymer tube 5, a Hall sensor fixing block 17, and a seed source container 4. The feeding fixing plate 9 is fixed to... Figure 3 On the right side of the cabinet shown, the seed source transmission and counting mechanism support frame 31 has a rotary guide rail 10 fixed to a feeding fixing plate 9. A stepper motor 7 and a seed source detection sensor bracket 30 are respectively mounted on the feeding fixing plate 9, located on either side of the rotary guide rail 10. The drive shaft of the stepper motor 7 is connected to a vertical feeding rotating head 18, which is installed inside the rotary guide rail 10. The other end of the Teflon fluoropolymer tube 5 is fixed to the rotary guide rail 10 by a fixing block, located directly above the vertical feeding rotating head 18. The seed source container 4 is located... Figure 3 The cabinet shown is located at the front right, directly opposite the discharge port 13 below the vertical feeding rotary head 18, for receiving seed sources.

[0033] like Figure 5 , Figure 6As shown, one end of the vertical feeding rotary head 18 is a hollow annular structure, and a seed source receiving hole 29 is provided on the outer edge of this end. The diameter of the seed source receiving hole 29 is slightly larger than the diameter of the seed source by about 0.4 mm to ensure that the seed source can be smoothly received and rotated out. The seed source receiving holes 29 can be arranged symmetrically or at different angles, and there can be multiple of them. The outer edge of the other end of the vertical feeding rotary head 18 is provided with multiple protruding positioning blocks 28, and the protruding positioning blocks 28 correspond one-to-one with the seed source receiving holes 29.

[0034] The Teflon tube 5, which serves as the drop channel for the seed source, has a specific bending angle. The two ends of the Teflon tube 5 are fixed in their installation positions. One end of the Teflon tube 5, which connects to the seed source arrangement and filling mechanism 19, is horizontally connected, while the other end, which has a vertical outlet, is vertical. Under the premise of ensuring a smooth transition of the Teflon tube, the specific bending angle is achieved by adjusting the length of the Teflon tube to ensure that the seed source can pass through one by one, in sequence, and smoothly, without accumulation, electrostatic adsorption, or sticking. The number of Teflon tubes 5 can be designed according to the specific number of corresponding channels according to production needs.

[0035] The aforementioned feeding system adopts a combined feeding mode of linear vibrator and stepper motor to achieve precise and high-speed feeding, and the feeding quantity can be set arbitrarily.

[0036] The control mechanism includes a human-machine interface device 2, a power switch 3, a Hall sensor 6, a seed source detection sensor 8, a seed source discharge sensor 11, a PLC logic controller 24, an emergency stop button 27, and a system electrical module 32; wherein, the Hall sensor 6, the seed source detection sensor 8, and the seed source discharge sensor 11 each correspond to 4 channels. Figure 1 , Figure 4 As shown, the PLC logic controller 24 and the system electrical module 32 are installed on the left side of the cabinet bottom plate. The human-machine interface device 2, power switch 3, and emergency stop button 27 are installed on the front panel 26 of the cabinet. The human-machine interface device 2 is connected to the PLC logic controller 24 via a dedicated data cable. Figure 6 As shown, Hall sensor 6, seed source detection sensor 8, and seed source feeding sensor 11 are connected to PLC logic controller 24 via digital input / output (I / O) module. Figure 3 As shown, Hall sensor 6 is fixed to the rotary guide rail 10 by Hall sensor fixing block 17, located above the vertical feeding rotary head 18. Seed source detection sensor 8 is mounted on seed source detection sensor bracket 12, directly opposite the vertical feeding rotary head 18. Figure 2 As shown, the seed source feeding sensor 11 is installed below the feeding fixing plate 9, directly opposite the discharge port 13.

[0037] The Hall sensor 6 works in conjunction with the vertical feeding rotary head 18. When the vertical feeding rotary head 18 rotates to the seed source receiving position, the protruding positioning block 28 on the vertical feeding rotary head 18 can be detected by the Hall sensor 6 to confirm whether the stepper motor 7 has rotated to the correct angle as set in the program.

[0038] When the seed source enters the seed source receiving hole 29 inside the vertical feeding rotary head 18, the seed source detection sensor 8 can detect the seed source particles.

[0039] The seed source dropping sensor 11 is used to detect the seed source when it falls.

[0040] The Hall sensor 6, seed source detection sensor 8, and seed source dropping sensor 11 are designed with interlocking mechanisms. These three detectors can detect all three signals: seed source preparation, seed source entering the seed source receiving hole, and seed source falling, thus obtaining a seed source count. If any signal is abnormal, it indicates a problem in a certain process, stopping the counting and halting the equipment. This effectively ensures accurate counting.

[0041] The Hall sensor 6 ensures that the stepper motor rotates to the set angle, guaranteeing that the seed source receiving hole 29 is aligned with the discharge port of the Teflon fluoride tube 5, thus ensuring smooth seed source reception. The seed source detection sensor 8 detects the seed source entering the seed source receiving hole 29 to ensure that the vertical discharge rotating head 18 receives the seed source. The seed source dropping sensor 11 detects and counts the seed source falling into the seed source container 4. The three sensors completely detect the entire process from seed source reception preparation to seed source reception and seed source dropping and counting. All three signals are fed back to the PLC logic controller 24. If any signal is abnormal, the system will terminate the counting and equipment operation to ensure accurate counting and issue a fault alarm.

[0042] In this embodiment of the invention, the Hall sensor 6 is an Omron sensor, specifically model E2E_C03SR8_WC_C1; the seed source sensor 8 is a Keyence photoelectric sensor, specifically model F-4HA / FU-35FA; the seed source feeding sensor is a Keyence fiber optic sensor, specifically model Keyence FU-12; and the PLC logic controller 24 is a Mitsubishi FX5UC-64MT / SS.

[0043] The system electrical module 32 in the control mechanism is electrically connected to the linear vibrator 15 in the seed source arrangement and filling mechanism 19, and the PLC logic controller 24 in the control system is electrically connected to the high-precision stepper motor 7 in the seed source transmission and counting mechanism 20, controlling each driving component to drive the seed source arrangement and filling mechanism 19 and the seed source transmission and counting mechanism 20 to run according to the set program.

[0044] The production mode of the present invention can be set through the human-computer interaction device 2. The automatic counting of seed material falling in each channel can be carried out independently or simultaneously. The falling speed is adjustable. The seed material falling in each channel can be counted continuously or quantitatively.

[0045] In practical applications, this invention can effectively reduce manual intervention, thereby solving problems such as large human error, high radiation dose to personnel, and low efficiency in the seed source counting process. At the same time, this device provides an optimal solution for the further automated batch packaging of seed sources.

[0046] The multi-channel automatic seed source high-speed counting device provided by this invention has the following working principle:

[0047] First, after the equipment is powered on, the operator starts the multi-channel seed source automatic feeding high-speed counting device through the human-machine interaction device 2, and sets the working parameters through the human-machine interaction device 2: setting the seed source counting channel and setting the single feeding quantity. All devices and components enter the initial state.

[0048] Then, the operator opens the sliding door 1 on the top cover of the cabinet and pours the seed particles into the feed trough 14. Clicking the start button starts the feeding system. The seed particles, aided by the distribution beam 22, are arranged individually, sequentially, and continuously in the seed passage 23 on the vibrating plate 21 under the action of the linear vibrator. They vibrate forward along the seed passage 23 and enter the Teflon fluorine tube 5 sequentially until the Teflon fluorine tube 5 is filled.

[0049] When the multi-channel automatic seed feeding high-speed counting device is in its initial state, the vertical feeding rotary head 18 rotates to the seed receiving position under the drive of the high-precision stepper motor 7. At this time, the Hall sensor 6 can detect the metal protrusion positioning block on one side of the vertical feeding rotary head 18 and send a feedback signal to the PLC logic controller 24 to confirm that the stepper motor has rotated to the correct position as instructed, and that the vertical feeding rotary head 18 is in the seed receiving position. At this time, the symmetrical seed receiving holes of the vertical feeding rotary head 18 are positioned directly opposite the discharge port 13.

[0050] When the seed source enters the seed source receiving hole of the vertical feeding rotary head 18, the seed source detection sensor 8 detects its presence and sends a feedback signal to the PLC logic controller 24. After receiving the instruction from the seed source detection sensor 8, the PLC logic controller 24 controls the stepper motor 7 to rotate 90°, driving the vertical feeding rotary head 18 to rotate 90°. At this time, the seed source receiving hole on the vertical feeding rotary head 18 is directly opposite the seed source outlet of the Teflon fluoride tube 5. The seed source particles enter the seed source receiving hole under the action of gravity. At this time, the Hall sensor 6 can detect the metal protrusion positioning block on one side of the vertical feeding rotary head 18 and sends a feedback signal to the PLC logic controller 24 to confirm that the stepper motor 7 has rotated to the position as instructed. The seed source detection sensor 8 detects the presence of the seed source and sends a feedback signal to the PLC logic controller 24.

[0051] When the PLC logic controller 24 receives the feedback signal from the seed source detection sensor 8 that the seed source particles have been detected, it controls the stepper motor 7 to rotate 90°, driving the vertical feeding rotating head 18 to rotate 90°. At this time, the seed source receiving hole, which initially receives the seed source particles, has rotated 180° from its initial position and is now facing the discharge port 13 on the feeding fixing plate 9. Under the action of gravity, the seed source falls through the discharge port into the pre-placed seed source container 4. During the falling process, the seed source dropping sensor 11, installed on one side of the discharge port 13 on the feeding fixing plate 9, can detect the seed source particles and feed back a signal to the PLC logic controller 24 for counting.

[0052] Thus, the multi-channel automatic seed feeding high-speed counting device completes the counting process of one seed particle per counting channel. Subsequent operation is similar and repeats in a cyclical manner to achieve accurate counting of seed particles. The four-channel automatic seed feeding high-speed counting device operates all four channels simultaneously, enabling high-speed and accurate counting of seed particles.

Claims

1. A multi-channel automatic seed feeding high-speed counting device, characterized in that: The system includes a cabinet, a feeding system, and a control mechanism. The feeding system and control mechanism are both located inside the cabinet. The feeding system includes a seed source arrangement and filling mechanism, and a seed source transmission and counting mechanism. The seed source arrangement and filling mechanism includes a feed chute, a linear vibrator, a seed source arrangement and filling mechanism support, a vibrating plate, and a distribution beam. The seed source arrangement and filling mechanism support is a frame structure, fixed to one side inside the cabinet. A linear vibrator is mounted on the support, a vibrating plate is mounted on top of the linear vibrator, a feed chute is mounted on top of the vibrating plate, and a seed source through slot is mounted on the vibrating plate. The seed source transmission and counting mechanism includes a feeding fixing plate, side-by-side stepper motors, a rotary guide rail, a vertical feeding rotating head, a Teflon tube, a Hall sensor fixing block, and seed sources. The container has a feeding fixing plate fixed to the seed source transmission and counting mechanism support frame. The rotary guide rail is fixed to the feeding fixing plate. The stepper motor and seed source detection sensor bracket are respectively installed on the feeding fixing plate, located on both sides of the rotary guide rail. The drive shaft of the stepper motor is connected to the vertical feeding rotary head, which is located in the internal gap of the rotary guide rail. One end of the Teflon tube is fixed to the rotary guide rail, located directly above the vertical feeding rotary head. The seed source container is located at the outlet directly below the vertical feeding rotary head. One end of the vertical feeding rotary head is a hollow annular structure with a seed source receiving hole on its outer edge. The outer edge of the other end of the vertical feeding rotary head is provided with a protruding positioning block, which corresponds one-to-one with the seed source receiving hole.

2. The multi-channel automatic seed source feeding high-speed counting device as described in claim 1, characterized in that: The cabinet includes a top cover, two side panels, a front panel, a rear panel, and a bottom panel. The top cover, two side panels, front panel, rear panel, and bottom panel are connected together to form a closed cabinet structure.

3. The multi-channel automatic seed source feeding high-speed counting device as described in claim 2, characterized in that: The top cover is equipped with a sliding door.

4. The multi-channel automatic seed source feeding high-speed counting device as described in claim 1, characterized in that: A material distribution beam is provided between the bottom of the feed trough and the vibrating plate. The material distribution beam is located at the bottom of the feed trough and is installed between the seed source channels on the vibrating plate. A Teflon tube is also connected to the side end of the vibrating plate.

5. The multi-channel automatic seed source feeding high-speed counting device as described in claim 1, characterized in that: The control mechanism includes a human-machine interface device, a power switch, a Hall sensor, a seed source detection sensor, a seed source discharge sensor, a PLC logic controller, and a system electrical module. The Hall sensor and system electrical module are located inside the cabinet, while the human-machine interface device, power switch, and emergency stop button are located on the front panel of the cabinet. The human-machine interface device is connected to the PLC logic controller, and the Hall sensor, seed source detection sensor, and seed source discharge sensor are connected to the PLC logic controller via a digital input / output (I / O) module.

6. The multi-channel automatic seed source feeding high-speed counting device as described in claim 5, characterized in that: The Hall sensor is fixed on the rotary guide rail by the Hall sensor fixing block and is located above the vertical feeding rotary head. The seed source detection sensor is installed on the seed source detection sensor bracket and is directly opposite the vertical feeding rotary head. The seed source dropping sensor is installed below the feeding fixing plate and is directly opposite the discharge port.

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