Conveying equipment for detecting freshness of litchis

Abstract

The invention relates to the technical field of quality inspection conveying equipment, and discloses litchi freshness detection conveying equipment which comprises a conveying frame, a random sampling mechanism is arranged in the conveying frame, an automatic detection mechanism is arranged on the right side of the random sampling mechanism, and an analysis control mechanism is arranged outside the conveying frame. The random sampling mechanism comprises a conveying belt, the conveying belt is rotationally connected into the conveying frame, sampling holes are formed in the upper surface of the conveying belt, and a sampling box is fixedly connected to the inner wall of the conveying frame. According to the conveying equipment for detecting the freshness of the litchis, a random sampling mechanism is arranged, a through sampling hole can be formed in a conveying belt, a sampling box is fixed in a conveying frame, and a power source for controlling a stepping motor to drive a rotating ball to rotate is used for sampling one conveyed litchis at a time interval; the sampling randomness of the detection conveying equipment can be improved, and the effect of improving the detection structure accuracy of the detection conveying equipment is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of quality inspection and conveying equipment, and in particular to a detection and conveying equipment for the freshness of litchi. Background Art

[0002] Quality inspection and conveying equipment is a device that can transport food and inspect its quality. Since lychees need to be tested for freshness after being picked and transported to the place, the batch of lychees can only be accepted if they pass the test. Therefore, quality inspection and conveying equipment is needed to conduct sampling freshness testing on the transported lychees.

[0003] When the existing lychee freshness detection and conveying equipment is used, a few lychees are randomly picked up from the conveyor belt of the conveying equipment manually to judge the freshness of the batch of lychees based on the experience of the experienced workers. However, since the freshness of the lychees is judged subjectively by humans, the judgment result is subjective and the freshness of the lychees cannot be objectively evaluated. In addition, lychees of different sizes and positions cannot be randomly sampled, which easily leads to a large deviation in the detection result of the freshness of the lychees, thereby affecting the delivery acceptance of the batch of lychees using the detection and conveying equipment. Summary of the invention

[0004] The object of the present invention is to provide a detection and conveying device for the freshness of litchi, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a detection and conveying device for the freshness of litchi, comprising a conveying frame, a random sampling mechanism is arranged inside the conveying frame, an automatic detection mechanism is arranged on the right side of the random sampling mechanism, an analysis and control mechanism is arranged outside the conveying frame, the random sampling mechanism comprises a conveyor belt, the conveyor belt is rotatably connected to the inside of the conveying frame, a sampling hole is opened on the upper surface of the conveyor belt, a sampling box is fixedly connected to the inner wall of the conveying frame, the sampling box is connected to the sampling hole, the front and back of the sampling box are fixedly connected to baffles, the upper surface of the sampling box and the upper surface of each baffle are in contact with the inner wall of the conveyor belt, the inner top wall of the sampling box is fixedly connected to a stepping motor, the output end of the stepping motor is fixedly connected to a rotating ball, the rotating ball is rotatably connected to the inside of the sampling box, the outer surface of the rotating ball is opened with a sampling slot, and the sampling slot is connected to the sampling hole;

[0006] The automatic detection mechanism includes a detection box, the left side of the detection box is fixedly connected to the right side of the sampling box, the left side of the detection box is in contact with the right side of the conveying frame, the upper surface of the detection box is fixedly connected to two groups of support columns, the top ends of the two groups of support columns are commonly fixedly connected to a mounting frame, the inner wall of the mounting frame is fixedly connected to a camera, the inner top wall of the sampling box is fixedly connected to an infrared thermal imaging thermometer, and the bottom surface of the mounting frame is fixedly connected to two fill lights;

[0007] The analysis and control mechanism includes two PLC controllers, and the right side of each PLC controller is fixedly connected to the left side of the sampling box. The stepper motor, camera, infrared thermal imaging thermometer and each fill light are connected to one of the PLC controllers by signal through a wire. The left side of the sampling box is fixedly connected with a display screen, and the display screen is connected to the camera and the infrared thermal imaging thermometer by data through a wire. Two speakers are fixedly connected to the upper surface of the mounting frame, and each speaker is connected to the PLC controller by data through a wire. The interior of the conveying frame is rotatably connected with a main shaft and a slave shaft, respectively, and the outer surfaces of the main shaft and the outer surfaces of the slave shaft are in contact with the inner wall of the conveyor belt. The left end of the main shaft is fixedly connected with a rotating motor, and the rotating motor is connected to the other PLC controller by signal through a wire.

[0008] Preferably, two groups of supporting legs are fixedly connected to the bottom surface of the conveying frame, and the bottom end of each group of supporting legs is fixedly connected to a lower chassis.

[0009] A supporting structure is formed by two groups of supporting legs and a lower chassis to support the conveyor rack.

[0010] Preferably, the bottom surface of each group of the lower chassis is fixedly connected with a movable leg, and the bottom end of each group of the movable legs is fixedly connected with a universal wheel.

[0011] By utilizing the movable legs and universal wheels fixed on the bottom surface of the lower chassis, the moving function of the universal wheels can be utilized to enable the device to be moved to a desired position for use.

[0012] Preferably, two first support rods are fixedly connected to the upper surface of the conveying frame, and a first connecting rod is fixedly connected to the top end of each of the first support rods.

[0013] The two first supporting rods are used to extend and support the two first connecting rods, thereby forming a stable supporting structure.

[0014] Preferably, one end of the two first connecting rods close to each other is commonly fixedly connected to a feeding hopper, and the bottom surface of the feeding hopper is in contact with the outer surface of the conveyor belt.

[0015] The stable supporting structure is used to support the feeding hopper on the input side of the conveying frame, so that the lychees can be easily transported to the conveyor belt.

[0016] Preferably, two second support rods are fixedly connected to the bottom surface of the conveying frame, and the bottom end of each of the second support rods is fixedly connected to a second connecting rod.

[0017] The two second supporting rods are used to extend and support the two second connecting rods, thereby forming a stable supporting structure.

[0018] Preferably, the ends of the two second connecting rods close to each other are fixedly connected to a discharge hopper, and the upper surface of the discharge hopper is in contact with the outer surface of the conveyor belt.

[0019] The stable support structure is used to support the discharge hopper on the output side of the conveyor frame, so that the lychees can be easily transported from the conveyor belt to the required position.

[0020] Preferably, both side surfaces of the conveyor belt are fixedly connected to limit enclosures, and the side surfaces of the two limit enclosures that are away from each other are in contact with the inner wall of the conveyor frame.

[0021] Limit fences are used to block the lychees being transported on the conveyor belt, so that the lychees can be transported conveniently and quickly.

[0022] Preferably, a reinforcement ring is fixedly connected to the outer surface of each group of support columns, and a bottom surface of each group of reinforcement rings is fixedly connected to the upper surface of the detection box.

[0023] The reinforcing ring is used to improve the connection stability between the support column and the detection box, thereby further improving the stability of the structure.

[0024] Preferably, the outer surface of one of the lower chassis is fixedly connected to a supporting chassis, the outer surface of the rotating motor is fixedly connected to two groups of mounting legs, and the bottom end of each group of mounting legs is fixedly connected to the upper surface of the supporting chassis.

[0025] Two sets of mounting legs and a supporting chassis are used to connect the rotating motor to one of the lower chassis, thereby facilitating the fixing of the rotating motor.

[0026] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0027] First, the present invention is provided with a random sampling mechanism, and can use the rotating conveyor belt in the conveyor frame to convey lychees. By opening a penetrating sampling hole on the conveyor belt, and since the sampling box is fixed in the conveyor frame, the baffles fixed on both sides of the sampling box are used to prevent the lychees from falling from the moving sampling hole. Only when the sampling hole is connected with the sampling box and the sampling slot opened on the rotating ball, the transported lychees will fall into the sampling slot. By controlling the power supply of the stepping motor to drive the rotating ball to rotate, the rotating ball can be used to rotate to sample the transported lychees at intervals, so that the sampling box can be used to sample multiple lychees at different time periods, thereby improving the sampling randomness of the detection and conveying equipment, and can sample lychees of various sizes at various positions, reducing subjective human sampling of lychees, and playing a role in improving the accuracy of the detection structure of the detection and conveying equipment.

[0028] Second, the present invention is provided with an automatic detection mechanism and an analysis control mechanism, and can use the infrared thermal imaging thermometer fixed in the sampling box to detect the surface temperature of the sampled lychees through the infrared thermal imaging thermometer. Since lychees need to be placed between ice cubes during transportation to reduce the temperature of the lychees as much as possible, it is convenient to judge the freshness of the lychee samples, and then use the detection box to collect the lychee samples, and use the support column and the mounting frame to install the camera on the upper top of the lychee samples, and use two fill lights to fill the lychee samples, so that the camera can be used to take pictures of the lychee samples. For example, it is convenient to display the litchi samples using a display screen, analyze the litchi samples using a PLC controller, and judge whether the surface of the litchi is bright by manual observation, so as to judge whether the litchi sample is fresh. A loudspeaker can be used to inform whether the litchi sample is fresh, and another PLC controller is used to control the rotating motor to conveniently control the detection and conveying equipment to transport litchi, so that the freshness of the litchi can be easily detected and conveyed through the equipment, so as to further reduce the subjective judgment of the freshness of the litchi by humans, and further improve the accuracy of the detection structure of the detection and conveying equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional diagram of the conveying frame of the present invention;

[0030] Figure 2 A bottom perspective view of the conveying frame of the present invention;

[0031] Figure 3 A rear perspective view of the conveyor belt of the present invention;

[0032] Figure 4 It is a sectional perspective view of the conveyor belt of the present invention;

[0033] Figure 5 A three-dimensional diagram of a sampling box of the present invention;

[0034] Figure 6 A three-dimensional diagram of a rotating ball of the present invention;

[0035] Figure 7 It is a bottom-up cutaway perspective view of the sampling box of the present invention;

[0036] Among them: 1. Conveyor rack; 2. Random sampling mechanism; 201. Conveyor belt; 202. Sampling hole; 203. Sampling box; 204. Stepper motor; 205. Rotating ball; 206. Sampling slot; 207. Baffle; 3. Automatic detection mechanism; 301. Detection box; 302. Support column; 303. Mounting frame; 304. Camera; 305. Infrared thermal imaging thermometer; 306. Fill light; 4. Analysis control mechanism; 401. Display Display screen; 402, PLC controller; 403, speaker; 404, main shaft; 405, slave shaft; 406, rotating motor; 5, supporting legs; 6, lower chassis; 7, moving legs; 8, universal wheels; 9, first supporting rod; 10, feeding hopper; 11, second supporting rod; 12, discharging hopper; 13, mounting legs; 14, supporting chassis; 15, limiting enclosure; 16, reinforcement ring; 17, first connecting rod; 18, second connecting rod. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1

[0039] See also Figure 1-7, including a conveyor frame 1, a random sampling mechanism 2 is arranged inside the conveyor frame 1, an automatic detection mechanism 3 is arranged on the right side of the random sampling mechanism 2, an analysis control mechanism 4 is arranged outside the conveyor frame 1, the random sampling mechanism 2 includes a conveyor belt 201, the conveyor belt 201 is rotatably connected to the inside of the conveyor frame 1, a sampling hole 202 is opened on the upper surface of the conveyor belt 201, a sampling box 203 is fixedly connected to the inner wall of the conveyor frame 1, the sampling box 203 is connected to the sampling hole 202, and the front and back of the sampling box 203 are fixedly connected The upper surface of the sampling box 203 and the upper surface of each baffle 207 are in contact with the inner wall of the conveyor belt 201. The inner top wall of the sampling box 203 is fixedly connected with a stepper motor 204. The stepper motor 204 is an open-loop control motor that converts an electrical pulse signal into an angular displacement or a linear displacement. The model of the stepper motor 204 is SST43D104X. The output end of the stepper motor 204 is fixedly connected with a rotating ball 205. The rotating ball 205 is rotatably connected to the inside of the sampling box 203. The outer surface of the rotating ball 205 is provided with a sampling The sampling slot 206 is connected with the sampling hole 202. By setting the random sampling mechanism 2, the conveyor belt 201 rotating in the conveyor frame 1 can be used to transport the lychees. The sampling hole 202 is opened through the conveyor belt 201. Since the sampling box 203 is fixed in the conveyor frame 1, the baffles 207 fixed on both sides of the sampling box 203 are used to prevent the lychees from falling from the moving sampling hole 202. Only the sampling hole 202 can be connected with the sampling box 203 and the sampling slot 206 opened on the rotating ball 205. Only when they are connected will the transported lychees fall into the sampling trough 206. By controlling the power supply of the stepping motor 204 to drive the rotating ball 205 to rotate, the rotating ball 205 can be rotated to sample the transported lychees at intervals, so that a plurality of lychees can be sampled at different time periods using the sampling box 203, thereby improving the sampling randomness of the detection and conveying equipment, being able to sample lychees of various sizes at various positions, reducing human subjective lychee sampling, and playing a role in improving the accuracy of the detection structure of the detection and conveying equipment.

[0040] Two first support rods 9 are fixedly connected to the upper surface of the conveyor frame 1. The top of each first support rod 9 is fixedly connected to a first connecting rod 17. The two first support rods 9 are used to extend and support the two first connecting rods 17, thereby forming a stable supporting structure.

[0041] The ends of the two first connecting rods 17 that are close to each other are fixedly connected to a feeding hopper 10, and the bottom surface of the feeding hopper 10 is in contact with the outer surface of the conveyor belt 201. The formed stable supporting structure is used to support the feeding hopper 10 on the input side of the conveyor frame 1, so as to facilitate the transportation of litchi to the conveyor belt 201.

[0042] Two second support rods 11 are fixedly connected to the bottom surface of the conveyor frame 1. The bottom end of each second support rod 11 is fixedly connected to a second connecting rod 18. The two second support rods 11 are used to extend and support the two second connecting rods 18, thereby forming a stable supporting structure.

[0043] The ends of the two second connecting rods 18 that are close to each other are fixedly connected to a discharge hopper 12. The upper surface of the discharge hopper 12 contacts the outer surface of the conveyor belt 201. The formed stable supporting structure is used to support the discharge hopper 12 on the output side of the conveyor frame 1, thereby facilitating the transport of litchi from the conveyor belt 201 to the required position.

[0044] The two side surfaces of the conveyor belt 201 are fixedly connected with the limit fences 15, and the sides of the two limit fences 15 that are away from each other are in contact with the inner wall of the conveyor frame 1. The limit fences 15 are used to block the lychees transported on the conveyor belt 201, so that the lychees can be transported conveniently and quickly.

[0045] The specific implementation of this embodiment is as follows: when in use, first connect the stepper motor 204 to the power supply. When the detection and conveying equipment is needed to transport litchi and detect its freshness, the equipment is first placed in the required position manually to transport the litchi, and the two first support rods 9 are used to extend and support the two first connecting rods 17 to form a stable support structure to support the feeding hopper 10 on the input side of the conveying frame 1, so that the litchi can be transported to the conveyor belt 201 conveniently for conveying the litchi, and the two second support rods 11 are used to extend and support the two second connecting rods 18 to form a stable support structure to support the discharging hopper 12 on the output side of the conveying frame 1, so that the litchi can be transported from the conveyor belt 201 to the required position conveniently, and then when the conveyor belt 201 is used to transport the litchi, the limiting enclosure 15 is used to support the conveyor belt 2 01 is used to block the lychees transported on the conveyor belt 201, so that the lychees can be transported conveniently and quickly, and then a through sampling hole 202 is opened on the conveyor belt 201. Since the sampling box 203 is fixed in the conveying frame 1, the baffles 207 fixed on both sides of the sampling box 203 are used to block the lychees from falling from the moving sampling hole 202. Only when the sampling hole 202 is connected with the sampling box 203 and the sampling slot 206 opened on the rotating ball 205, the transported lychees will fall into the sampling slot 206. By controlling the power supply of the stepping motor 204 to drive the rotating ball 205 to rotate, the rotating ball 205 can be used to rotate to sample the transported lychees at intervals, so that the sampling box 203 can be used to sample multiple lychees at different time periods, thereby improving the sampling randomness of the detection and conveying equipment, and can sample lychees of various sizes at various positions, reducing subjective lychee sampling.

[0046] Embodiment 2

[0047] See also Figure 1-7 The automatic detection mechanism 3 includes a detection box 301, the left side of the detection box 301 is fixedly connected to the right side of the sampling box 203, the left side of the detection box 301 is in contact with the right side of the conveyor frame 1, and the upper surface of the detection box 301 is fixedly connected with two groups of support columns 302, and the tops of the two groups of support columns 302 are commonly fixedly connected with a mounting frame 303, and the inner wall of the mounting frame 303 is fixedly connected with a camera 304, which is a video input device and a type of closed-circuit television. It is widely used in video conferencing, telemedicine and real-time monitoring. The model of the camera 304 is HXR-NX100, and the inner top wall of the sampling box 203 is fixedly connected with an infrared thermal imaging thermometer 305, which is an instrument that can realize long-distance, multi-target and non-contact body temperature detection. The infrared thermal imaging thermometer 305 The model is XW-1. Two fill lights 306 are fixedly connected to the bottom surface of the mounting frame 303. By setting up the automatic detection mechanism 3, the infrared thermal imaging thermometer 305 fixed in the sampling box 203 can be used to detect the surface temperature of the sampled lychees through the infrared thermal imaging thermometer 305. Since lychees need to be placed between ice cubes during transportation to reduce the temperature of the lychees as much as possible, it is convenient to judge the freshness of the lychee samples, and then the detection box 301 is used to collect the lychee samples. The support column 302 and the mounting frame 303 are used to install the camera 304 on the upper top of the lychee samples, and the two fill lights 306 are used to fill light for the lychee samples, so that the camera 304 is used to take pictures and videos of the lychee samples, which plays a role in facilitating the automatic detection of the freshness of the lychees.

[0048] Two groups of supporting legs 5 are fixedly connected to the bottom surface of the conveying frame 1, and the bottom end of each group of supporting legs 5 is fixedly connected to a lower chassis 6. The two groups of supporting legs 5 and the lower chassis 6 form a supporting structure to support the conveying frame 1.

[0049] The bottom surface of each group of lower chassis 6 is fixedly connected with a movable leg 7, and the bottom end of each group of movable legs 7 is fixedly connected with a universal wheel 8. By utilizing the movable legs 7 and the universal wheel 8 fixed on the bottom surface of the lower chassis 6, the moving function of the universal wheel 8 can be utilized to move the device to a required position for use.

[0050] The outer surface of each group of support columns 302 is fixedly connected with a reinforcement ring 16, and the bottom surface of each group of reinforcement rings 16 is fixedly connected to the upper surface of the detection box 301. The reinforcement rings 16 are used to improve the connection stability between the support columns 302 and the detection box 301, thereby further improving the stability of the structure.

[0051] The specific implementation of this embodiment is as follows: when in use, first connect the camera 304, the infrared thermal imaging thermometer 305 and the fill light 306 to the power supply. When the detection and conveying equipment is needed to transport litchi and detect its freshness, first use two groups of support legs 5 and the lower chassis 6 to form a support structure to support the conveying rack 1, and use the moving legs 7 and universal wheels 8 fixed on the bottom surface of the lower chassis 6 to use the moving function of the universal wheels 8 to move the equipment to the required position for use, and then use the infrared thermal imaging thermometer 305 fixed in the sampling box 203 to transport litchi and detect its freshness. , so that the surface temperature of the sampled lychees can be detected by the infrared thermal imaging thermometer 305. Since lychees need to be placed between ice cubes during transportation, the temperature of the lychees can be reduced as much as possible, so that the freshness of the lychee samples can be easily determined. The detection box 301 is then used to collect the lychee samples, and the support column 302 and the mounting frame 303 are used to install the camera 304 on the upper top of the lychee samples, and two fill lights 306 are used to fill light the lychee samples, so that the camera 304 can be used to take pictures and videos of the lychee samples, so as to automatically detect the freshness of the lychees.

[0052] Embodiment 3

[0053] See also Figure 1-7The analysis control mechanism 4 includes two PLC controllers 402. The PLC controller 402 is a digital electronic device with a microprocessor, a digital logic controller for automatic control, and the model of the PLC controller 402 is Q00JCPU. The right side of each PLC controller 402 is fixedly connected to the left side of the sampling box 203. The stepper motor 204, the camera 304, the infrared thermal imaging thermometer 305 and each fill light 306 are connected to one of the PLC controllers 402 through a wire. The left side of the sampling box 203 is fixedly connected with a display screen 40 1. The display screen 401 is a display tool that displays certain electronic files on the screen through a specific transmission device and then reflects them to the human eye. The model of the display screen 401 is AOC203VW. The display screen 401 is connected to the camera 304 and the infrared thermal imaging thermometer 305 through a wire. Two speakers 403 are fixedly connected to the upper surface of the mounting frame 303. The speakers 403 are devices that convert electrical signal energy into sound energy and can radiate sound energy to a limited space or outdoor space. The model of the speakers 403 is MG20NS1. Each speaker 403 is connected through a conductor. The conveyor frame 1 is connected to one of the PLC controllers 402 by data connection, the interior of the conveyor frame 1 is respectively connected to a main shaft 404 and a slave shaft 405, the outer surface of the main shaft 404 and the outer surface of the slave shaft 405 are in contact with the inner wall of the conveyor belt 201, the left end of the main shaft 404 is fixedly connected to a rotating motor 406, and the rotating motor 406 is connected to another PLC controller 402 by a wire. By setting the analysis control mechanism 4, the litchi sample is displayed using the display screen 401, and the litchi sample is analyzed using the PLC controller 402, and the manual viewing is combined with The lychee surface is judged to determine whether it is bright-colored, so as to facilitate judging whether the lychee sample is fresh. The speaker 403 can be used to inform whether the lychee sample is fresh, and another PLC controller 402 is used to control the rotating motor 406. Since the output end of the rotating motor 406 is connected to the main shaft 404, it is convenient to control the detection and conveying equipment to transport the lychees, so that the freshness of the lychees can be detected and conveyed conveniently through the equipment, so as to further reduce the subjective judgment of the freshness of the lychees, and play a role in further improving the accuracy of the detection structure of the detection and conveying equipment.

[0054] The outer surface of one of the lower chassis 6 is fixedly connected to the supporting chassis 14, and the outer surface of the rotating motor 406 is fixedly connected to two groups of mounting legs 13, and the bottom end of each group of mounting legs 13 is fixedly connected to the upper surface of the supporting chassis 14. The two groups of mounting legs 13 and the supporting chassis 14 are used to connect the rotating motor 406 to one of the lower chassis 6, thereby facilitating the fixing of the rotating motor 406.

[0055] The specific implementation of this embodiment is as follows: when in use, first connect the display screen 401, the PLC controller 402, the speaker 403 and the rotating motor 406 to the power supply. When the detection and conveying equipment needs to be used to transport litchi and detect its freshness, the display screen 401 can be used to display the litchi sample, and the PLC controller 402 is used to analyze the litchi sample and combine it with manual observation to determine whether the surface of the litchi is bright, so as to facilitate the judgment of whether the litchi sample is fresh. The speaker 403 can be used to inform whether the litchi sample is fresh, and another PLC controller 402 is used to control the rotating motor 406. The two groups of mounting legs 13 and the supporting chassis 14 are used to connect the rotating motor 406 to one of the lower chassis 6, so as to facilitate the fixing of the rotating motor 406. Since the output end of the rotating motor 406 is connected to the main shaft 404, it is convenient to control the detection and conveying equipment to transport litchi, so that the freshness of the litchi can be conveniently detected and conveyed through the equipment, so as to further reduce the subjective judgment of the freshness of the litchi.

[0056] The working principle of the present invention is as follows: when in use, first connect the stepper motor 204 to the power supply. When the detection and conveying device needs to be used to transport litchi and detect its freshness, the device is first placed in the required position manually to transport the litchi, and the two first support rods 9 are used to extend and support the two first connecting rods 17 to form a stable support structure to support the feeding hopper 10 on the input side of the conveying frame 1, so that the litchi can be transported to the conveyor belt 201 conveniently, and the two second support rods 11 are used to extend and support the two second connecting rods 18 to form a stable support structure to support the discharging hopper 12 on the output side of the conveying frame 1, so that the litchi can be transported to the conveyor belt 201 conveniently. The lychees are transported from the conveyor belt 201 to the required position. When the conveyor belt 201 is used to transport the lychees, the limiting enclosure 15 is used to block the lychees transported on the conveyor belt 201, so that the lychees can be transported conveniently and quickly. Then, a sampling hole 202 is opened on the conveyor belt 201. Since a sampling box 203 is fixed in the conveying frame 1, baffles 207 fixed on both sides of the sampling box 203 are used to prevent the lychees from falling from the moving sampling hole 202. Only when the sampling hole 202 is connected to the sampling box 203 and connected to the sampling slot 206 opened on the rotating ball 205, the transported lychees will fall into the sampling slot 206. By controlling the power supply of the stepping motor 204 to drive the rotating ball 205 to rotate, the rotating ball 205 can be used to rotate the rotating ball 205. The ball 205 rotates to sample the transported lychees at intervals, so that the sampling box 203 can be used to sample multiple lychees at different time periods, thereby improving the sampling randomness of the detection and conveying equipment, and can sample lychees of various sizes at various positions, reducing subjective lychee sampling. When in use, the camera 304, the infrared thermal imaging thermometer 305 and the fill light 306 are first connected to the power supply. When the detection and conveying equipment needs to be used to transport lychees and detect their freshness, a support structure is first formed by two groups of support legs 5 and a lower chassis 6 to support the conveying frame 1, and the moving legs 7 and universal wheels 8 fixed on the bottom surface of the lower chassis 6 are used to utilize the moving effect of the universal wheels 8 , so that the device can be moved to the required position for use, and then the infrared thermal imaging thermometer 305 fixed in the sampling box 203 is used to detect the surface temperature of the sampled lychees through the infrared thermal imaging thermometer 305. Since lychees need to be placed between ice cubes during transportation, the temperature of the lychees can be reduced as much as possible, so that the freshness of the lychee samples can be easily determined. The detection box 301 is then used to collect the lychee samples, and the support column 302 and the mounting frame 303 are used to install the camera 304 on the upper top of the lychee samples, and the two fill lights 306 are used to fill light the lychee samples, so that the camera 304 can be used to take pictures and videos of the lychee samples, so as to automatically detect the freshness of the lychees.When in use, first connect the display screen 401, PLC controller 402, speaker 403 and rotating motor 406 to the power supply. When the detection and conveying equipment is needed to transport litchi and detect its freshness, the display screen 401 can be used to display the litchi sample, and the PLC controller 402 can be used to analyze the litchi sample and judge it by manual observation to determine whether the surface of the litchi is bright, so as to facilitate the judgment of whether the litchi sample is fresh. The speaker 403 can be used to inform whether the litchi sample is fresh, and another PLC controller 402 can be used to control the rotating motor 406. The two sets of mounting legs 13 and the supporting chassis 14 are used to connect the rotating motor 406 to one of the lower chassis 6, so as to facilitate the fixing of the rotating motor 406. Since the output end of the rotating motor 406 is connected to the main shaft 404, it is convenient to control the detection and conveying equipment to transport litchi, so that the freshness of the litchi can be conveniently detected and conveyed through the equipment, so as to further reduce the subjective judgment of the freshness of the litchi.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A conveying device for detecting the freshness of litchi, comprising a conveying frame (1), characterized in that: A random sampling mechanism (2) is arranged inside the conveying frame (1), an automatic detection mechanism (3) is arranged on the right side of the random sampling mechanism (2), an analysis control mechanism (4) is arranged outside the conveying frame (1), the random sampling mechanism (2) comprises a conveying belt (201), the conveying belt (201) is rotatably connected to the inside of the conveying frame (1), a sampling hole (202) is opened on the upper surface of the conveying belt (201), a sampling box (203) is fixedly connected to the inner wall of the conveying frame (1), the sampling box (203) is connected to the sampling hole (202), and the sampling box (203) is connected to the sampling hole (202). The front and back sides of the sampling box (203) are both fixedly connected with baffles (207); the upper surface of the sampling box (203) and the upper surface of each baffle (207) are in contact with the inner wall of the conveyor belt (201); the inner top wall of the sampling box (203) is fixedly connected with a stepper motor (204); the output end of the stepper motor (204) is fixedly connected with a rotating ball (205); the rotating ball (205) is rotatably connected to the inside of the sampling box (203); the outer surface of the rotating ball (205) is provided with a sampling groove (206); the sampling groove (206) is connected to the sampling hole (202); The automatic detection mechanism (3) comprises a detection box (301), the left side of the detection box (301) is fixedly connected to the right side of the sampling box (203), the left side of the detection box (301) is in contact with the right side of the conveying frame (1), the upper surface of the detection box (301) is fixedly connected to two groups of support columns (302), the top ends of the two groups of support columns (302) are commonly fixedly connected to a mounting frame (303), the inner wall of the mounting frame (303) is fixedly connected to a camera (304), the inner top wall of the sampling box (203) is fixedly connected to an infrared thermal imaging thermometer (305), and the bottom surface of the mounting frame (303) is fixedly connected to two fill lights (306); The analysis control mechanism (4) comprises two PLC controllers (402), the right side of each of the PLC controllers (402) is fixedly connected to the left side of the sampling box (203), the stepping motor (204), the camera (304), the infrared thermal imaging thermometer (305) and each fill light (306) are connected to one of the PLC controllers (402) by signal through a wire, the left side of the sampling box (203) is fixedly connected to a display screen (401), the display screen (401) is connected to the camera (304) and the infrared thermal imaging thermometer (305) by data through a wire, and the Two loudspeakers (403) are fixedly connected to the upper surface of the mounting frame (303), and each of the loudspeakers (403) is connected to one of the PLC controllers (402) via a wire for data transmission. A main rotating shaft (404) and a slave rotating shaft (405) are rotatably connected to the interior of the conveying frame (1), and the outer surfaces of the main rotating shaft (404) and the slave rotating shaft (405) are in contact with the inner wall of the conveyor belt (201). A rotating motor (406) is fixedly connected to the left end of the main rotating shaft (404), and the rotating motor (406) is connected to another PLC controller (402) for signal transmission via a wire.

2. The device for detecting and conveying the freshness of litchi according to claim 1, characterized in that: Two groups of support legs (5) are fixedly connected to the bottom surface of the conveying frame (1), and the bottom end of each group of support legs (5) is fixedly connected to a lower chassis (6).

3. The device for detecting and conveying the freshness of litchi according to claim 2, characterized in that: The bottom surface of each group of the lower chassis (6) is fixedly connected to a movable leg (7), and the bottom end of each group of the movable leg (7) is fixedly connected to a universal wheel (8).

4. The device for detecting and conveying the freshness of litchi according to claim 1, characterized in that: Two first support rods (9) are fixedly connected to the upper surface of the conveying frame (1), and the top end of each of the first support rods (9) is fixedly connected to a first connecting rod (17).

5. The device for detecting and conveying the freshness of litchi according to claim 4, characterized in that: The ends of the two first connecting rods (17) that are close to each other are fixedly connected to a feeding hopper (10), and the bottom surface of the feeding hopper (10) is in contact with the outer surface of the conveyor belt (201).

6. The device for detecting and conveying the freshness of litchi according to claim 1, characterized in that: Two second support rods (11) are fixedly connected to the bottom surface of the conveying frame (1), and the bottom end of each second support rod (11) is fixedly connected to a second connecting rod (18).

7. The device for detecting and conveying the freshness of litchi according to claim 6, characterized in that: The ends of the two second connecting rods (18) that are close to each other are fixedly connected to a discharge hopper (12), and the upper surface of the discharge hopper (12) is in contact with the outer surface of the conveyor belt (201).

8. The device for detecting and conveying the freshness of litchi according to claim 1, characterized in that: Both side surfaces of the conveyor belt (201) are fixedly connected to the limiting enclosure (15), and the side surfaces of the two limiting enclosures (15) that are away from each other are in contact with the inner wall of the conveyor frame (1).

9. The device for detecting and conveying the freshness of litchi according to claim 1, characterized in that: The outer surface of each group of support columns (302) is fixedly connected to a reinforcement ring (16), and the bottom surface of each group of reinforcement rings (16) is fixedly connected to the upper surface of the detection box (301).

10. The device for detecting and conveying the freshness of litchi according to claim 2, characterized in that: The outer surface of one of the lower chassis (6) is fixedly connected to a supporting chassis (14), and the outer surface of the rotating motor (406) is fixedly connected to two groups of mounting legs (13), and the bottom end of each group of mounting legs (13) is fixedly connected to the upper surface of the supporting chassis (14).

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