A tea grading detection device based on near-infrared spectroscopy technology

Abstract

The present invention discloses a tea grading and detection device based on near-infrared spectroscopy technology, which relates to the technical field of tea detection. The device comprises a device base, wherein a movable track is provided on the inner side of the device base, a feeding hopper is provided on one side of the top of the device base, a movable frame is provided on the movable track, a tea conveying mechanism is provided in the movable frame, the movable frame is used to drive the tea conveying mechanism, and limit rods are provided on both sides of the tea conveying mechanism, which enable the tea conveying mechanism to vibrate during movement to spread the tea leaves flat, and a near-infrared spectrometer is provided on the other side of the top of the device base; the vibrating tea conveying mechanism can make the tea leaves stacked on the tea conveying mechanism spread flat, which can improve the effect of the near-infrared spectrometer irradiating the tea leaves on the one hand, and the spread tea leaves can directly show the overall quality of the batch of tea on the other hand, thereby improving the accuracy of the detection result of the near-infrared spectrometer.

Description

Technical Field

[0001] The present invention relates to the technical field of tea detection, and in particular to a tea grading detection device based on near-infrared spectroscopy technology. Background Art

[0002] Near-infrared spectrum is an electromagnetic wave between visible light and mid-infrared light. The spectral Fourier transform near-infrared spectrometer can separate and extract the near-infrared absorption spectrum characteristic information of the sample through the near-infrared spectrum and establish a corresponding classification model. When conducting tea grading detection, the established classification model and the absorption spectrum of the tea can be applied to qualitatively determine the nature of the tea, greatly improving the detection effect of the tea.

[0003] When the current tea grading and detection device based on near-infrared spectroscopy technology detects tea, the sample tea will be stacked, which causes the near-infrared spectrometer to be unable to fully illuminate the sample tea, resulting in the data obtained by the near-infrared spectrometer being one-sided and unable to reflect the true quality of the batch of tea as a whole. Summary of the Invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a tea grading and detection device based on near-infrared spectroscopy technology to solve the problem in the prior art that sample tea leaves will be stacked, which results in the near-infrared spectrometer being unable to fully irradiate all sample tea leaves, resulting in the data obtained by the near-infrared spectrometer being one-sided and unable to reflect the true quality of the batch of tea as a whole.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A tea grading and detection device based on near-infrared spectroscopy technology includes a device base, a movable track is provided on the inner side of the device base, a feeding hopper is provided on one side of the top of the device base, a movable frame is provided on the movable track, a tea conveying mechanism is provided in the movable frame, the movable frame is used to drive the tea conveying mechanism, limit rods are provided on both sides of the tea conveying mechanism, the limit rods make the tea conveying mechanism vibrate during movement to spread the tea leaves flat, a near-infrared spectrometer is provided on the other side of the top of the device base, and a conveyor belt is provided at the bottom of the device base close to the near-infrared spectrometer, and the conveyor belt is used to receive tea leaves that have been tested on the tea conveying mechanism.

[0007] As a further solution of the present invention: the tea conveying mechanism includes a mechanism body, which is arranged on the inner side of the mobile frame, and the inner side of the mechanism body is rotatably connected to a support plate, and a hydraulic cylinder is connected between the bottom surface of the support plate and the mechanism body, and a shaking mechanism is provided on the outer side of the mechanism body, and the shaking mechanism is fixed on the inner side of the mobile frame. When the tea leaves are detected by the near-infrared spectrometer, the hydraulic cylinder can be activated, and the hydraulic cylinder drives the support plate through the hydraulic rod to rotate the support plate downward, so that the tea leaves on the support plate will automatically fall onto the conveyor belt, realizing the recovery of the tea leaves, and the tea conveying mechanism can re-detect the tea leaves.

[0008] As a further solution of the present invention: the shaking mechanism includes a telescopic rod, one end of the telescopic rod is inserted into the side of the mechanism body, and the other end of the telescopic rod is fixedly connected to a limiting sleeve, the limiting sleeve and the limiting rod fit together, and a blocking rod is fixedly connected to the side of the mechanism body near the top position of the telescopic rod. During the movement of the shaking mechanism, the limiting sleeve will cooperate with the limiting rod to make the overall movement of the shaking mechanism more stable.

[0009] As a further solution of the present invention: a transversely arranged guide wheel is installed at the end position of the baffle rod, and the baffle rod will contact the limit rod during the movement of the shaking mechanism. Therefore, the set guide wheel can reduce the friction between the baffle rod and the limit rod, making the operation of the shaking mechanism smoother.

[0010] As a further solution of the present invention: the end of the telescopic rod close to the mechanism body is fixedly connected to a support spring, which can exert elastic force on the mechanism body, so that the mechanism body can remain stable when receiving tea leaves in the hopper and cooperating with the near-infrared spectrometer for detection.

[0011] As a further solution of the present invention: the limiting rod includes two groups of straight sections and one group of wavy sections, and the wavy sections are arranged between the two groups of straight sections.

[0012] As a further solution of the present invention: the wave segment is provided with wave crests and wave troughs, and the wave crests and wave troughs on the limiting rods on both sides of the shaking mechanism are staggered with each other.

[0013] As a further solution of the present invention: the near-infrared spectrometer is a Fourier transform near-infrared spectrometer.

[0014] Beneficial effects of the present invention:

[0015] 1. In the present invention, the tea conveying mechanism is provided, and the limit rods provided on both sides of the tea conveying mechanism can make the tea conveying mechanism vibrate during movement. The vibrating tea conveying mechanism can make the tea leaves stacked on the tea conveying mechanism spread out flatly. In this way, when the tea conveying mechanism is at the bottom of the near-infrared spectrometer, the near-infrared spectrometer can detect the tea leaves to be inspected spread out flatly on the tea conveying mechanism. Since the near-infrared spectrometer adopts near-infrared spectroscopy technology, the spread tea leaves can cooperate with the irradiation of the near-infrared spectrometer. On the one hand, the effect of the near-infrared spectrometer irradiating the tea leaves can be improved. On the other hand, the spread tea leaves can directly reflect the overall quality of the batch of tea leaves, thereby improving the accuracy of the detection results of the near-infrared spectrometer.

[0016] 2. In the present invention, the limit sleeve and the limit rod fit together, and a blocking rod is fixedly connected to the side of the mechanism body near the top of the telescopic rod. During the movement of the shaking mechanism, the limit sleeve will cooperate with the limit rod to make the overall movement of the shaking mechanism more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a front view of the present invention;

[0019] Figure 2 This is a front view of the tea conveying mechanism of the present invention;

[0020] Figure 3 It is a front view of the shaking mechanism of the present invention;

[0021] Figure 4 It is a partial top view of the limiting rod in the present invention.

[0022] In the figure: 1. Device base; 2. Moving track; 3. Moving frame; 4. Tea conveying mechanism; 41. Mechanism body; 42. Support plate; 43. Hydraulic cylinder; 44. Shaking mechanism; 441. Telescopic rod; 442. Limiting sleeve; 443. Support spring; 444. Baffle; 5. Feeding hopper; 6. Near-infrared spectrometer; 7. Conveyor belt; 8. Limiting rod; 81. Straight section; 82. Wave section; 821. Wave crest; 822. Wave trough. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0024] like Figure 1-Figure 4 The tea grading and detection device based on near-infrared spectroscopy technology is shown in the figure, comprising a device base 1, a movable track 2 is provided on the inner side of the device base 1, a feeding hopper 5 is provided on one side of the top of the device base 1, a movable frame 3 is provided on the movable track 2, the movable track 2 is four parallel long rods, one of the long rods is set as a screw, the screw is connected to the motor, and a ball nut is installed at the position corresponding to the screw in the movable frame 3 when the motor drives the screw. The screw cooperates with the ball nut to make the movable frame 3 move along the direction of the movable track 2. A tea conveying mechanism 4 is provided in the movable frame 3, and the movable frame 3 is used to drive the tea conveying mechanism 4. Limit rods 8 are provided on both sides of the tea conveying mechanism 4. The limit rods 8 make the tea conveying mechanism 4 vibrate during movement to spread the tea leaves flat. A near-infrared spectrometer 6 is provided on the other side of the top of the device base 1, and a conveyor belt 7 is provided at the bottom of the device base 1 near the near-infrared spectrometer 6. The conveyor belt 7 is used to receive the tea leaves that have been tested on the tea conveying mechanism 4, and the near-infrared spectrometer 6 is a Fourier transform near-infrared spectrometer.

[0025] When the tea is inspected by the tea grading and detecting device, the tea to be inspected is first placed in the feeding hopper 5, and the feeding hopper 5 can transport the tea to be inspected to the tea conveying mechanism 4 in the mobile rack 3, and the mobile rack 3 can move along the moving track 2, so the mobile rack 3 can drive the tea conveying mechanism 4 to move, thereby realizing the transportation of the tea to be inspected, and the limit rods 8 arranged on both sides of the tea conveying mechanism 4 can make the tea conveying mechanism 4 vibrate during the movement, and the vibrating tea conveying mechanism 4 can make the tea leaves stacked on the tea conveying mechanism 4 spread out flat, so that when the tea conveying mechanism 4 is at the bottom of the near-infrared spectrometer 6, the near-infrared spectrometer 6 can detect the tea to be inspected spread out on the tea conveying mechanism 4. Since the near-infrared spectrometer 6 adopts near-infrared spectroscopy technology, the spread tea leaves can cooperate with the irradiation of the near-infrared spectrometer 6. On the one hand, it can improve the effect of the near-infrared spectrometer 6 irradiating the tea leaves, and on the other hand, the spread tea leaves can directly show the overall quality of the batch of tea, thereby improving the accuracy of the detection results of the near-infrared spectrometer 6.

[0026] like Figure 2 As shown, the tea conveying mechanism 4 includes a mechanism body 41, which is arranged on the inner side of the mobile frame 3. A support plate 42 is rotatably connected to the inner side of the mechanism body 41. A hydraulic cylinder 43 is connected between the bottom surface of the support plate 42 and the mechanism body 41. A shaking mechanism 44 is provided on the outer side of the mechanism body 41, and the shaking mechanism 44 is fixed on the inner side of the mobile frame 3.

[0027] During operation, after the tea leaves have been detected by the near-infrared spectrometer 6, the hydraulic cylinder 43 can be activated, and the hydraulic cylinder 43 drives the support plate 42 through the hydraulic rod to rotate the support plate 42 downward, so that the tea leaves on the support plate 42 will automatically fall onto the conveyor belt 7, realizing the recovery of the tea leaves, and the tea conveying mechanism 4 can re-detect the tea leaves.

[0028] like Figure 3 As shown, the shaking mechanism 44 includes a telescopic rod 441, one end of the telescopic rod 441 is inserted into the side of the mechanism body 41, and the other end of the telescopic rod 441 is fixedly connected to a limiting sleeve 442, the limiting sleeve 442 and the limiting rod 8 fit together, and the side of the mechanism body 41 near the top position of the telescopic rod 441 is fixedly connected with a blocking rod 444. During the movement of the shaking mechanism 44, the limiting sleeve 442 will cooperate with the limiting rod 8 to make the overall movement of the shaking mechanism 44 more stable.

[0029] A transversely arranged guide wheel is installed at the end of the baffle rod 444. The baffle rod 444 will contact the limit rod 8 during the movement of the shaking mechanism 44. Therefore, the set guide wheel can reduce the friction between the baffle rod 444 and the limit rod 8, making the operation of the shaking mechanism 44 smoother.

[0030] The telescopic rod 441 is fixedly connected to a support spring 443 at one end close to the mechanism body 41. The support spring 443 can exert elastic force on the mechanism body 41, so that the mechanism body 41 can remain stable when receiving tea leaves in the feeding hopper 5 and cooperating with the near-infrared spectrometer 6 for detection.

[0031] like Figure 4 As shown, the limiting rod 8 includes two groups of straight sections 81 and one group of wavy sections 82. The wavy section 82 is arranged between the two groups of straight sections 81. The wavy section 82 is provided with crests 821 and troughs 822. The crests 821 and troughs 822 on the limiting rods 8 on both sides of the shaking mechanism 44 are staggered.

[0032] During operation, after the shaking mechanism 44 enters the wave section 82, the baffle 444 on the side of the mechanism body 41 will contact the wave section 82. Since the wave section 82 is provided with a crest 821 and a trough 822, the crest 821 and the trough 822 on the limiting rods 8 on both sides of the shaking mechanism 44 are staggered with each other, so the baffle 444 will continue to move horizontally between the crest 821 and the trough 822. When the baffle 444 moves horizontally, the baffle 444 will also drive the mechanism body 41 to move horizontally, that is, to cause the support plate 42 to produce a shaking effect, so that the tea leaves stacked on the support plate 42 can be spread out flat.

[0033] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A tea grading detection device based on near-infrared spectroscopy technology, characterized in that: include: A device base (1), wherein a movable track (2) is provided on the inner side of the device base (1), and a feeding hopper (5) is provided on one side of the top of the device base (1); A movable frame (3), wherein the movable frame (3) is arranged on the movable track (2); A tea conveying mechanism (4), wherein the tea conveying mechanism (4) is arranged in a movable frame (3), and the movable frame (3) is used to drive the tea conveying mechanism (4). Limiting rods (8) are provided on both sides of the tea conveying mechanism (4), and the limiting rods (8) cause the tea conveying mechanism (4) to vibrate during movement to spread the tea leaves flat. A near-infrared spectrometer (6), the near-infrared spectrometer (6) being arranged on the other side of the top of the device base (1); A conveyor belt (7), the conveyor belt (7) being arranged at the bottom of the device base (1) on a side close to the near-infrared spectrometer (6), and the conveyor belt (7) being used to receive the tea leaves after being tested on the tea conveying mechanism (4); The tea-leaf conveying mechanism (4) comprises a mechanism body (41), the mechanism body (41) being arranged on the inner side of the movable frame (3), the inner side of the mechanism body (41) being rotatably connected to a support plate (42), a hydraulic cylinder (43) being connected between the bottom surface of the support plate (42) and the mechanism body (41), a shaking mechanism (44) being arranged on the outer side of the mechanism body (41), the shaking mechanism (44) being fixed on the inner side of the movable frame (3); The shaking mechanism (44) includes a telescopic rod (441), one end of the telescopic rod (441) is inserted into the side of the mechanism body (41), the other end of the telescopic rod (441) is fixedly connected to a limiting sleeve (442), the limiting sleeve (442) and the limiting rod (8) are mutually engaged, and a blocking rod (444) is fixedly connected to the side of the mechanism body (41) near the top of the telescopic rod (441); A transversely arranged guide wheel is installed at the end of the blocking rod (444); The limiting rod (8) comprises two groups of straight sections (81) and one group of wavy sections (82), and the wavy sections (82) are arranged between the two groups of straight sections (81); The wave segment (82) is provided with a wave crest (821) and a wave trough (822), and the wave crest (821) and the wave trough (822) on the limiting rods (8) on both sides of the shaking mechanism (44) are staggered.

2. The tea grading detection device based on near infrared spectroscopy technology according to claim 1, characterized in that: One end of the telescopic rod (441) close to the mechanism body (41) is fixedly connected to a support spring (443).

3. The tea grading detection device based on near infrared spectroscopy technology according to claim 1 is characterized in that: The near-infrared spectrometer (6) is a Fourier transform near-infrared spectrometer.

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