A grain quality infrared image recognition equipment

Abstract

This application relates to the technical field of grain processing quality inspection, and in particular to a grain quality infrared image recognition equipment, which includes a housing with a turntable rotatably mounted inside the housing. A drive source is provided between the turntable and the housing, and multiple storage cylinders are arranged on the turntable. This utility model, through the annular layout design of the turntable carrying multiple storage cylinders, combined with the rotation control of the drive source, can realize multi-channel parallel detection of grain samples. When one storage cylinder is under the infrared detector for detection, other storage cylinders can simultaneously complete operations such as feeding, unloading, or vibrating and spreading, avoiding the "intermittent detection" drawback of traditional single-channel equipment. At the same time, the two discharge pipes, combined with the eccentric setting of the electric telescopic rod, can automatically switch the opening and closing state of the baffle according to the detection results, realizing dynamic sorting of qualified and unqualified grains without manual intervention, significantly improving the detection and sorting efficiency in large-scale grain processing scenarios.

Description

Technical Field

[0001] This application relates to the technical field of grain processing quality testing, and in particular to an infrared image recognition device for grain quality. Background Technology

[0002] As a vital commodity, grain quality testing is crucial for ensuring food security, storage management, and processing. Traditional grain quality testing mainly relies on methods such as manual sampling, chemical analysis, or visual identification, which suffer from drawbacks such as low efficiency, high subjectivity, and the inability to achieve non-destructive and rapid testing. With the development of intelligent testing technology, grain quality testing technology based on infrared image recognition is gradually being applied due to its advantages of speed, non-destructive nature, and batch processing capability.

[0003] Existing online inspection devices mostly adopt a single-channel conveyor belt design, which requires manual sorting or intermittent inspection and is difficult to adapt to the continuous requirements of large-scale grain processing scenarios. Some devices use a vibrating plate to transport grain one by one for image acquisition, but there are problems such as uneven material distribution and long inspection cycle.

[0004] Grain is prone to accumulation and uneven density during transportation, leading to detection errors. Traditional equipment lacks dynamic adjustment mechanisms and is not equipped with vibrating feeding devices or adaptive discharge structures, making it difficult to cope with the differences in physical properties of different grain varieties. Utility Model Content

[0005] To achieve parallel detection at multiple workstations and optimize the uniformity of the fabric by combining vibration components, this application provides an infrared image recognition device for grain quality.

[0006] This application provides a grain quality infrared image recognition equipment, which adopts the following technical solution: it includes a box, a turntable is rotatably installed inside the box, a drive source is provided between the turntable and the box, a plurality of storage cylinders are provided on the turntable, an infrared detector is provided above one of the storage cylinders, a feed pipe is provided on one side of the infrared detector, and a discharge component and a vibration component are provided below the storage cylinder.

[0007] Optionally, the discharge assembly includes a baffle plate, which is rotatably mounted on the storage cylinder via a rotating shaft. A torsion spring is fitted on the rotating shaft, with one end of the torsion spring connected to the rotating shaft and the other end of the torsion spring connected to the storage cylinder.

[0008] Optionally, the discharge assembly further includes a discharge pipe, which is installed on the housing. There are two discharge pipes, which are located below different storage cylinders. An electric telescopic rod is installed inside the discharge pipe. The electric telescopic rod contacts the bottom of the baffle and is eccentrically positioned inside the discharge pipe.

[0009] Optionally, a support block is provided below the baffle, the support block is installed on the inner wall of the storage cylinder, and a rubber ring is provided on the outer ring of the baffle.

[0010] Optionally, the vibration assembly includes a support plate, which is installed on the inner wall of the box. A vibration plate is disposed above the support plate, and the vibration plate is connected to the support plate by a hydraulic damping rod. A vibration motor is disposed at the lower end of the vibration plate.

[0011] Optionally, the vibration assembly further includes a screw, one end of which is mounted on the turntable, and the other end of which passes through the storage cylinder and is threaded with a nut. A spring is fitted on the screw, one end of which is mounted on the turntable. Multiple screws are provided, and the multiple screws are symmetrically arranged on both sides of the storage cylinder.

[0012] Optionally, multiple storage cylinders are arranged at equal intervals, the lower end of the feed pipe is tapered, and the lower end of the feed pipe is biased towards the support block.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model utilizes a ring-shaped layout design with multiple storage cylinders mounted on a turntable, combined with rotation control of a drive source, to achieve multi-channel parallel detection of grain samples. When one storage cylinder is under the infrared detector for detection, other storage cylinders can simultaneously complete operations such as feeding, unloading, or vibrating to distribute the material, avoiding the drawbacks of "intermittent detection" in traditional single-channel equipment. At the same time, the two discharge pipes, combined with the eccentric setting of the electric telescopic rod, can automatically switch the opening and closing state of the baffle according to the detection results, realizing dynamic sorting of qualified and unqualified grains without manual intervention, significantly improving the detection and sorting efficiency in large-scale grain processing scenarios.

[0015] 2. This utility model uses a vibrating motor to drive a vibrating plate, which, in conjunction with the buffering effect of a hydraulic damping rod, can evenly distribute the grain in the storage cylinder, avoiding infrared detection errors caused by uneven packing density. The elastic support structure composed of a screw, spring, and nut can change the vibration amplitude of the storage cylinder by adjusting the position of the nut, adapting to the physical characteristics of different grain varieties, thus solving the problems of "uneven distribution and lack of dynamic adjustment mechanism" in the background technology. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the internal structure of the box in an embodiment of this application;

[0018] Figure 3This is a cross-sectional view of the storage bucket in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the vibration plate structure in an embodiment of this application.

[0020] Reference numerals in the attached diagram: 1. Box body; 2. Turntable; 3. Storage cylinder; 4. Infrared detector; 5. Feed pipe; 6. Baffle; 7. Rotating shaft; 8. Torsion spring; 9. Discharge pipe; 10. Spring; 11. Screw; 12. Nut; 13. Support plate; 14. Vibrating plate; 15. Vibrating motor; 16. Hydraulic damping rod; 17. Drive source; 18. Electric telescopic rod. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0022] This application discloses an infrared image recognition device for grain quality. For example... Figure 1 , Figure 2 As shown, the container includes a housing 1, made of stainless steel or aluminum alloy with an anti-corrosion surface treatment to adapt to the humidity, dust, and other working conditions of grain storage environment. The top of the housing 1 is equipped with a dust cover, and the bottom is equipped with ventilation holes and a filter screen to prevent external impurities from interfering with the detection, while maintaining internal air circulation. A turntable 2 is rotatably installed inside the housing 1, and a drive source 17 is set between the turntable 2 and the housing 1. It adopts a combination of servo motor and reducer, and the rotation speed of the turntable 2 is precisely controlled by the PLC control system to ensure that the storage cylinder 3 passes under the infrared detector 4 in the set order.

[0023] In this embodiment, a plurality of storage cylinders 3 are provided on the turntable 2. A photoelectric sensor is provided on the edge of the turntable 2, which, together with the positioning groove on the housing 1, enables the precise positioning of the storage cylinders 3. An infrared detector 4 is provided above one of the storage cylinders 3, and a feed pipe 5 is provided on one side of the infrared detector 4.

[0024] See Figure 2 , Figure 3 As shown, a discharge assembly and a vibration assembly are provided below the storage cylinder 3. The discharge assembly includes a baffle 6, which is rotatably mounted on the storage cylinder 3 via a rotating shaft 7. A support block is provided below the baffle 6 and is installed on the inner wall of the storage cylinder 3. Multiple storage cylinders 3 are arranged at equal intervals. The lower end of the feed pipe 5 is tapered and is biased towards the support block to avoid direct impact on the baffle 6 and causing false triggering.

[0025] like Figure 3As shown, a rubber ring is provided on the outer ring of the baffle 6. The rubber ring is made of food-grade silicone to ensure that there is no dust leakage when the storage cylinder 3 is sealed. A torsion spring 8 is sleeved on the rotating shaft 7. One end of the torsion spring 8 is connected to the rotating shaft 7, and the other end of the torsion spring 8 is connected to the storage cylinder 3. The initial torque of the torsion spring 8 keeps the baffle 6 in the closed state under normal conditions. When the electric telescopic rod 18 pushes the bottom of the baffle 6, the torsion spring 8 is compressed and stores force. After the telescopic rod retracts, the baffle 6 automatically resets.

[0026] Looking back Figure 2 As shown, the discharge assembly also includes a discharge pipe 9, which is installed on the housing 1. There are two discharge pipes 9, which are located below different storage cylinders 3. The two discharge pipes 9 correspond to the "qualified material" and "unqualified material" channels respectively, and different collection boxes can be connected below them.

[0027] Combination Figure 2 , Figure 4 As shown, an electric telescopic rod 18 is installed inside the discharge pipe 9. The electric telescopic rod 18 contacts the bottom of the baffle 6 and is eccentrically set inside the discharge pipe 9. When pushed, it generates a lateral force to ensure that the baffle 6 flips smoothly and avoids material jamming. The vibration component includes a support plate 13, which is installed on the inner wall of the box 1. A vibration plate 14 is set above the support plate 13.

[0028] In this embodiment, the vibrating plate 14 and the support plate 13 are connected by a hydraulic damping rod 16. A vibrating motor 15 is provided at the lower end of the vibrating plate 14. The vibrating assembly also includes a screw 11. One end of the screw 11 is mounted on the turntable 2, and the other end of the screw 11 passes through the storage cylinder 3 and is threaded with a nut 12. A spring 10 is sleeved on the screw 11, and one end of the spring 10 is mounted on the turntable 2. Multiple screws 11 are provided, and the multiple screws 11 are symmetrically arranged on both sides of the storage cylinder 3.

[0029] The implementation principle of the grain quality infrared image recognition equipment in this application embodiment is as follows: start the drive source 17, drive the turntable 2 to rotate, so that multiple storage cylinders 3 move along an equidistant circular trajectory. When a certain storage cylinder 3 rotates to below the feed pipe 5, the conical lower end of the feed pipe 5 introduces the grain into the storage cylinder 3.

[0030] At the same time, the vibration motor 15 starts and drives the vibration plate 14 to vibrate at high frequency. The vibration plate 14 is connected to the support plate 13 through the hydraulic damping rod 16 to buffer the vibration impact and avoid the equipment from shaking violently. The storage cylinder 3 is connected to the turntable 2 through the screw 11 and the spring 10. The vibration of the vibration plate 14 is transmitted to the storage cylinder 3, so that the grain in the cylinder is evenly distributed.

[0031] When the storage cylinder 3 rotates to the position directly below the infrared detector 4, the drive source 17 stops rotating. The infrared detector 4 collects infrared images of the grain surface inside the storage cylinder 3, and obtains characteristic data such as the temperature distribution, moisture content, and impurities of the grain. The detection data is transmitted to the control system and compared with the preset qualified standard to determine whether the grain is qualified. The control system sends a command to the electric telescopic rod 18 of the corresponding discharge pipe 9 based on the result.

[0032] If the grain is qualified, the electric telescopic rod 18 in the corresponding discharge pipe 9 extends when the storage cylinder 3 rotates to the top. Its top pushes one side of the bottom of the baffle 6, overcoming the elastic force of the torsion spring 8, so that the baffle rotates around the shaft 7 of 6 and opens. The grain is discharged through the discharge pipe 9 under the action of gravity and enters the qualified grain channel. After the electric telescopic rod 18 retracts, the torsion spring 8 resets, the baffle 6 closes, and waits for the next cycle.

[0033] If the grain is substandard, the electric telescopic rod 18 of the other discharge pipe 9 performs the same action, the baffle 6 opens, and the grain is discharged into the substandard grain channel.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grain quality infrared image recognition device, comprising a housing (1), characterized in that: A turntable (2) is rotatably installed inside the box (1). A drive source (17) is provided between the turntable (2) and the box (1). Multiple storage cylinders (3) are provided on the turntable (2). An infrared detector (4) is provided above one of the storage cylinders (3). A feed pipe (5) is provided on one side of the infrared detector (4). A discharge assembly and a vibration assembly are provided below the storage cylinder (3).

2. The grain quality infrared image recognition equipment according to claim 1, characterized in that: The discharge assembly includes a baffle (6), which is rotatably mounted on the storage cylinder (3) via a rotating shaft (7). A torsion spring (8) is fitted on the rotating shaft (7), with one end of the torsion spring (8) connected to the rotating shaft (7) and the other end of the torsion spring (8) connected to the storage cylinder (3).

3. The grain quality infrared image recognition equipment according to claim 2, characterized in that: The discharge assembly also includes a discharge pipe (9), which is installed on the box (1). There are two discharge pipes (9), which are located below different storage cylinders (3). An electric telescopic rod (18) is installed inside the discharge pipe (9). The electric telescopic rod (18) contacts the bottom of the baffle (6) and is eccentrically positioned inside the discharge pipe (9).

4. The grain quality infrared image recognition equipment according to claim 2, characterized in that: A support block is provided below the baffle (6), and the support block is installed on the inner wall of the storage cylinder (3). A rubber ring is provided on the outer ring of the baffle (6).

5. The grain quality infrared image recognition equipment according to claim 1, characterized in that: The vibration assembly includes a support plate (13), which is installed on the inner wall of the housing (1). A vibration plate (14) is provided above the support plate (13). The vibration plate (14) and the support plate (13) are connected by a hydraulic damping rod (16). A vibration motor (15) is provided at the lower end of the vibration plate (14).

6. The grain quality infrared image recognition equipment according to claim 5, characterized in that: The vibration assembly also includes a screw (11), one end of which is mounted on the turntable (2), and the other end of which passes through the storage cylinder (3) and is threaded with a nut (12). A spring (10) is fitted on the screw (11), one end of which is mounted on the turntable (2). Multiple screws (11) are provided, and the multiple screws (11) are symmetrically arranged on both sides of the storage cylinder (3).

7. The grain quality infrared image recognition equipment according to claim 4, characterized in that: Multiple storage cylinders (3) are arranged at equal intervals, the lower end of the feed pipe (5) is tapered, and the lower end of the feed pipe (5) is biased toward the support block.

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