Machine vision device for multilayer sorting and quarantine of harmful organisms in imported bulk grains

Abstract

The invention discloses a machine vision device for multilayer sorting and quarantine of harmful organisms of imported bulk grains, and belongs to the technical field of multilayer sorting and quarantine of harmful organisms of imported bulk grains, the machine vision device is provided with a hopper convenient to position and assemble, the lower surface of the hopper is connected with a first-stage screening part, and the rear side of the lower surface of the first-stage screening part is provided with a first vibration part; comprising a first conveying belt located on the middle rear side of the lower surface of a first-stage screening part, a first supporting frame is rotationally connected to the outer surface of the first conveying belt, a first material receiving part is supported at the left end of the upper surface of the first supporting frame, and meanwhile a second-stage screening part is arranged at the front end of the lower surface of the first-stage screening part. In the sampling process, screening, quarantine, sorting and packaging are completed in parallel, the sample detection quantity, detection efficiency and detection consistency are greatly improved, the detection time is shortened, samples are divided into three layers according to the particle size, the image acquisition effect of an industrial camera in the industry is guaranteed, and then the detection precision is improved. And the clamping structure is matched to control the stability of the industrial camera.

Description

Technical Field

[0001] The invention relates to the technical field of multi-layer sorting and quarantine of harmful organisms in bulk grain entering a country, and in particular to a machine vision device for multi-layer sorting and quarantine of harmful organisms in bulk grain entering a country. Background Art

[0002] Bulk grains may carry a variety of harmful substances that may affect plant food, etc. Therefore, the multi-layer sorting and quarantine device for inbound bulk grain pests can be used for effective screening and quarantine; During use, it is not convenient to effectively improve the quarantine effect, which may easily lead to omissions and inaccuracies in quarantine; In order to overcome the above defects, the prior art (Chinese patent with application number CN202322876979.6 and application date 2023-10-26) is a machine vision device for quarantine of sieve undersize of inbound bulk grain. The device uses a box, a screen, a positioning frame, an industrial camera, a macro industrial lens, a lens protective cover, and a planar light source structure to enable the industrial camera to use a high-brightness stroboscopic light source to solve the problem of unclear shooting of moving targets during the process of photographing samples. The macro industrial lens can solve the problem that the industrial camera cannot take photos of small fields of view and small targets that are not clear enough. At the same time, the fully automated screening and photographic equipment are used to replace the traditional manual quarantine method, which has more efficient detection efficiency and detection accuracy. There is also a prior art (application number CN202311341323.2, Chinese patent application date 2023-10-17) a machine vision method and device for online quarantine of inbound bulk grain on a belt line, which uses a strobe controller in conjunction with a panel light source. The strobe light source solution supports greatly improving the brightness of the light source in an instant, while improving the stability and life of the light source, greatly reducing the total heat generation of the light source, and using a strobe controller and an ordinary panel light source to greatly improve the brightness and effect of taking photos at high speed; And the prior art (Chinese patent with application number CN202021478660.8 and application date 2020-07-24) is an LED surface light source for machine vision inspection, which is installed on the upper shell by plugging, and the light diffuser plate and the PCB board will not interfere with each other during disassembly and assembly, so that the light diffuser plate and the PCB board can be repaired and replaced separately; in addition, the upper shell and the lower shell are connected in a detachable manner, and some other light source components can be installed in the lower shell. When the light source component fails, the upper shell only needs to be removed to repair or replace the other light source components; the design is reasonable, and the light diffuser plate, PCB board and other light source components are easy to repair and replace, saving time and effort, and effectively improving work efficiency; Although the existing technology can be used for quarantine, during the working process, the current customs sample quarantine method is to manually screen the samples after sampling. This method has a long time period, low efficiency, easy omissions, and limited sample coverage. In addition, grain samples contain a variety of substances with inconsistent sizes and large differences. When the image is downsampled, small-sized substances basically lose their characteristic information. When the sample is tested, it is easy to cause the sample to be in a stacked state, and only the sample surface can be photographed, affecting the shooting effect. In addition, there are many samples in the sieve, and not all the samples in the sieve can be packaged independently.

[0003] In view of the above problems, it is urgently necessary to make innovative designs based on the existing machine vision devices for multi-layer sorting and quarantine of pests in imported bulk grain. Summary of the invention

[0004] The purpose of the present invention is to provide a machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain, so as to solve the problem proposed in the above background technology that during the working process, the current customs sample quarantine method is to manually screen the samples after sampling. This method has a long time period, low efficiency, easy omissions, and limited sample coverage. In addition, the grain samples contain a variety of substances, and the sizes of these substances are inconsistent and vary greatly. When the image is downsampled, the small-sized substances basically lose their characteristic information. When the sample is detected, it is easy to cause the sample to be in a stacked state, and only the sample surface can be photographed, affecting the shooting effect. In addition, there are many samples in the sieve, and all the samples in the sieve cannot be independently packaged.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain, provided with a hopper that is convenient for positioning and assembly, and a first-level screening component is connected to the lower surface of the hopper, and a vibrating component is installed on the rear side of the lower surface of the first-level screening component; It comprises: a conveyor belt 1, which is located at the middle and rear side of the lower surface of the primary screening element, and the outer surface of the conveyor belt 1 is rotatably connected to a support frame 1, and the left end of the upper surface of the support frame 1 supports a material receiving element 1, and a secondary screening element is arranged at the front end of the lower surface of the primary screening element, and the secondary screening element is provided with a screening detection mechanism; The material discharge piece is nested and connected to the middle section of the lower surface of the first-stage screening piece, and the lower surface of the first-stage screening piece is threadedly connected with a positioning bolt, and a protective plate is installed on the upper surface of the support frame 1, and the outer surface of the support frame 1 is rotatably connected to the rear side with a synchronous wheel 1, and the synchronous wheel 1 is provided with a linkage rotation mechanism; The visual inspection frame is installed on the upper surface of the supporting frame 1, and an industrial camera is nested and connected on the upper side of the inner surface of the visual inspection frame.

[0006] Preferably, the conveyor belt 1 and the primary screening element constitute a screening and conveying structure, and the conveyor belt 1 and the support frame 1 constitute a rotating structure, and the support frame 1 constitutes a material weighing bearing structure through the conveyor belt 1 and the material receiving element 1, and at the same time, a secondary screening is formed between the primary screening element and the secondary screening element.

[0007] Through the above structure, it is convenient to effectively form a first-level screening when in use, and the receiving piece can screen and collect smaller impurities.

[0008] Preferably, a second vibrating member is installed on the right side of the lower surface of the secondary screening member in the screening detection mechanism, and a second conveyor belt is arranged on the left end of the lower surface of the secondary screening member, and the outer surface of the second conveyor belt is rotatably connected to a second support frame, and a second material receiving member is connected to the front side of the outer surface of the second support frame; A conveyor belt three is arranged in the middle section of the lower surface of the secondary screening element, and the outer surface of the conveyor belt three is rotatably connected to a support frame three, and the front end of the outer surface of the support frame three is connected to a quarantine element, and the rear side of the inner surface of the quarantine element is connected to a material receiving element three.

[0009] Through the above structure, when in use, it is convenient to effectively screen and carry larger and medium-sized materials, and screen them through secondary screening pieces, separate the larger and medium-sized materials for quarantine, and detect harmful substances and divide them into three categories of quarantine pieces and receiving pieces for storage and use.

[0010] Preferably, the secondary screening element forms a screening structure through the second vibrating element, and the secondary screening element forms a screening conveying structure through the second conveyor belt and the second support frame, and the second support frame and the second material receiving element form a weighing structure; The secondary screening element and the conveyor belt three constitute a screening and conveying structure, the conveyor belt three and the support frame three constitute a rotating structure, and the quarantine element and the material receiving element three constitute a nested structure.

[0011] Through the above structure, when in use, under the secondary screening element, larger materials can be effectively screened through the second conveyor belt and medium materials can be screened through the third conveyor, and can be used for differentiated detection in conjunction with corresponding detection devices.

[0012] Preferably, the unloading part and the primary screening part form a nested structure, and the primary screening part forms a nested structure with the unloading part through positioning bolts, and the support frame 1 and the protective plate form a leakage-proof structure, while the support frame 1 forms a rotating structure through a conveyor belt 1 and an axis and a synchronous wheel 1.

[0013] Through the above structure, when in use, the use of the material discharge piece can be effectively used to reduce the flying of materials during the screening process, and it can be used in conjunction with the protective plate, and through the use of the support frame 1 and the conveyor belt 1, the synchronous wheel 1 can be controlled to rotate simultaneously.

[0014] Preferably, the inner surface of the synchronous wheel 1 in the linkage rotating mechanism is rotatably connected with a synchronous belt, and the inner surface of the synchronous belt is rotatably connected with the synchronous wheel 2, and the middle section of the inner surface of the synchronous wheel 2 is connected with a cam through a shaft, and the inner surface of the cam is nested and connected with a roller, and the outer front side of the cam is connected with a gear assembly through a shaft, and the upper surface of the cam is connected with a vibration plate, and the vibration plate is nested and slid on the inner surface of the support frame 1, and a return spring 1 is elastically installed between the support frame 1 and the vibration plate, and the upper surface of the vibration plate is connected with a conveyor belt 1; A support wheel is rotatably connected to the lower middle side of the inner surface of the support frame one, and a conveyor belt one is connected to the upper surface of the support wheel, and an extrusion wheel is fittedly connected to the lower side of the inner surface of the conveyor belt one, and at the same time, a bracket is rotatably connected to the outer surface of the extrusion wheel, and the bracket is limited and slid on the inner surface of the support frame one, and a reset spring two is elastically connected between the support frame one and the bracket.

[0015] Through the above structure, when the cam and the extrusion wheel are stably connected and used in conjunction with each other, the conveying vibration of conveyor belt one, conveyor belt two and conveyor belt three can be controlled, the shooting surface of the material can be improved, and the occurrence of material piling can be prevented.

[0016] Preferably, the synchronous wheel 1 forms a proportional rotation structure with the synchronous wheel 2 through the synchronous belt, and the synchronous wheel 2 and the cam form a rotation structure, and the cam and the roller form a nested rotation structure, while the cam and the gear assembly form a rotation meshing structure, and the cam forms a vibration structure with the vibration plate through the roller, and the vibration plate forms an elastic telescopic structure with the return spring 1 and the support frame 1.

[0017] Through the above structure, the rotation of the cam can be effectively controlled synchronously during use, and the cam used symmetrically about the vibration plate can be used in conjunction with the gear assembly connected to the shaft to synchronously control the cam to control the vibration of the vibration plate, thereby improving the conveying detection stability on conveyor belt one, conveyor belt two and conveyor belt three.

[0018] Preferably, the support frame 1 forms a rotating support structure with the support wheel and the conveyor belt 1, and the conveyor belt 1 and the extrusion wheel form an extrusion rotating structure, and the extrusion wheel forms an elastic telescopic structure with the support frame 1 through the bracket and the return spring 2.

[0019] Through the above structure, the support wheel and the extrusion wheel can be effectively controlled to adjust the stability of the conveyor belt assembly during use, thereby preventing the conveyor belt assembly from becoming loose.

[0020] Preferably, the inner surface of the visual inspection frame is telescopically connected to a moving rod, and the lower surface of the visual inspection frame is respectively connected to the support frame 2 and the support frame 3, and the front end of the inner surface of the support frame 3 is rotatably connected to a cylinder, and the inner surface of the cylinder is telescopically connected to a push rod, and the outer surface end of the push rod is rotatably connected to a rotary adjustment door, and the rotary adjustment door is positioned and rotatably connected to the front end of the inner surface of the support frame 3; An extrusion piece is installed at the end of the outer surface of the moving rod, and an extrusion spring 1 is elastically connected between the moving rod and the visual inspection frame, and a clamping piece is extruded and connected to the outer surface of the extrusion piece, and an extrusion spring 2 is elastically connected between the clamping piece and the visual inspection frame, and an industrial camera is clamped and connected to the outer surface of the clamping piece.

[0021] Through the above structure, it is convenient to stably assemble the visual inspection frame during use, control the stability of the industrial camera, and when problematic materials are detected, they will be transported to different carriers through the rotation of the rotary adjustment door.

[0022] Preferably, the visual inspection frame can form an integrated structure with the support frame one, the support frame two and the support frame three, and the visual inspection frame and the industrial camera form a nested structure, and the visual inspection frame and the moving rod form a telescopic structure, while the support frame three forms a telescopically adjustable positioning and rotating structure with the rotary adjustment door through the cylinder and the push rod; The extrusion piece and the moving rod form an integrated structure, and the moving rod forms an elastic telescopic structure with the visual inspection frame through the extrusion piece and the extrusion spring 1, and the visual inspection frame forms an extrusion unlocking structure with the extrusion piece and the clamping piece, and the clamping piece forms an elastic locking structure with the industrial camera through the extrusion spring 2.

[0023] Through the above structure, the stability of the industrial camera during assembly and use can be effectively improved to avoid falling off, and the use of the rotating adjustment door can be coordinated to control different conveying positions.

[0024] Compared with the prior art, the invention has the following beneficial effects: screening, quarantine, sorting and packaging are completed in parallel during the sampling process, which greatly improves the sample detection quantity, detection efficiency and detection consistency, shortens the detection time, and divides the samples into three layers according to the particle size, thereby ensuring the image acquisition effect of industrial cameras and thus improving the detection accuracy; 1. A screening and detection mechanism is set up, which uses a mature screening device to screen the grain sample into three layers according to the size, including large, medium and small materials. The screening and detection device uses a primary screening element and a secondary screening element. According to the requirements of customs and grain regulations, different aperture screens can be used for different grain types, and different machine vision solutions can be used for different layers of screening objects to improve the screening and detection effects; Furthermore, the screened materials will continue to fall in small amounts onto conveyor belts 1, 2 and 3, and carry the screened materials away from the unloading parts, thereby achieving a flat spreading effect. When the samples are flatly spread out, the industrial camera can ensure that they can be photographed clearly, and all materials are clearly presented on the image, which helps to improve the detection effect of the intelligent algorithm. By using high-speed cameras to capture images, the camera shooting speed and field of view, as well as the movement speed of the conveyor belt, can be accurately calculated to ensure that all screened materials passing through the camera are photographed, and at the same time are not repeatedly photographed by two adjacent frames of images.

[0025] 2. A linkage rotation mechanism is provided to facilitate synchronous control of the cam rotation through the shaft used in the conveying process, and synchronous belt 1 and synchronous belt 2 are arranged in equal proportion to improve the cam rotation stability. When the cam rotates, it will contact the roller and the vibration plate to improve the contact stability between the vibration plate and the conveyor belt, reduce the wear on the conveyor belt, and cooperate with the gear assembly to control the symmetrical cam rotation stability, and cooperate with the use of the extrusion wheel to improve the stability of the conveyor belt during use and avoid looseness; Furthermore, the industrial camera can be easily arranged by snap-fitting, so that its stability during use can be improved, and a simultaneous squeezing control method can be adopted to facilitate the stability of the industrial camera during disassembly and replacement.

[0026] 3. It is equipped with a system for sorting quarantine materials, separating quarantine materials from medium-sized materials and packaging them independently. When quarantine materials are detected, the coordinates and types of the quarantine materials are automatically reported. The time when the quarantine materials reach the end of the conveyor is calculated based on the distance to the end of the conveyor and the speed of the conveyor, and then the mechanical device is guided to divert the quarantine materials and the surrounding samples into independent sample containers, thereby achieving the effect of separating quarantine materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the hopper of the present invention; Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the primary screening element of the present invention; Figure 3 For the present invention Figure 2 A in the middle is an enlarged schematic diagram of the three-dimensional structure; Figure 4 It is a schematic diagram of a half-section three-dimensional structure of the support frame of the present invention; Figure 5 It is a schematic diagram of a partial cross-sectional three-dimensional structure of the cam of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the rear side of the synchronous wheel 2 of the present invention; Figure 7 This is a schematic diagram of a three-dimensional structure of a half-section view of the stent of the present invention; Figure 8 It is a schematic diagram of a partially cutaway three-dimensional structure of the visual inspection frame of the present invention; Fig. 9 It is a schematic diagram of a partially cutaway three-dimensional structure of a clamp of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the rotary adjustment door of the present invention.

[0028] In the figure: 1. hopper; 2. primary screening element; 3. vibrating element 1; 4. conveyor belt 1; 5. support frame 1; 6. receiving element 1; 7. secondary screening element; 8. vibrating element 2; 9. conveyor belt 2; 10. support frame 2; 11. receiving element 2; 12. conveyor belt 3; 13. support frame 3; 14. quarantine element; 15. receiving element 3; 16. unloading element; 17. positioning bolt; 18. protective plate; 19. synchronous wheel 1; 20. synchronous belt; 21. synchronous wheel 2; 2 101. Cam; 2102. Roller; 2103. Gear assembly; 2104. Vibrating plate; 2105. Return spring 1; 22. Support wheel; 23. Extrusion wheel; 24. Bracket; 25. Return spring 2; 26. Visual inspection frame; 27. Industrial camera; 28. Moving rod; 2801. Extrusion piece; 2802. Extrusion spring 1; 2803. Clamp; 2804. Extrusion spring 2; 29. ​​Cylinder; 30. Push rod; 31. Rotary adjustment door. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-Figure 10 The present invention provides a technical solution: a machine vision device for multi-layer sorting and quarantine of harmful organisms in inbound bulk grain, which is provided with a hopper 1 which is convenient for positioning and assembly, and a primary screening element 2 is connected to the lower surface of the hopper 1, and a vibrating element 3 is installed on the rear side of the lower surface of the primary screening element 2.

[0031] Embodiment 1: Figure 1-Figure 3 The technical solution shown in the figure, the present invention provides the following technical solution: a machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain, disclosed: It includes: a conveyor belt 14, which is located at the middle and rear side of the lower surface of the primary screening element 2, and the outer surface of the conveyor belt 14 is rotatably connected to a support frame 15, and the left end of the upper surface of the support frame 5 supports a receiving element 16, and at the same time, a secondary screening element 7 is arranged at the front end of the lower surface of the primary screening element 2, and the secondary screening element 7 is provided with a screening detection mechanism; The conveyor belt 4 and the primary screening element 2 form a screening and conveying structure, and the conveyor belt 4 and the support frame 5 form a rotating structure, and the support frame 5 forms a weighing bearing structure through the conveyor belt 4 and the material receiving element 6, and at the same time, a secondary screening is formed between the primary screening element 2 and the secondary screening element 7.

[0032] A vibrating member 2 8 is installed on the right side of the lower surface of the secondary screening member 7 in the screening detection mechanism, and a conveyor belt 2 9 is provided at the left end of the lower surface of the secondary screening member 7, and the outer surface of the conveyor belt 2 9 is rotatably connected to a supporting frame 2 10, and a material receiving member 2 11 is connected to the front side of the outer surface of the supporting frame 2 10; A conveyor belt 3 12 is provided in the middle section of the lower surface of the secondary screening element 7, and the outer surface of the conveyor belt 3 12 is rotatably connected to a support frame 3 13, and the front end of the outer surface of the support frame 3 13 is connected to a quarantine element 14, and the rear side of the inner surface of the quarantine element 14 is connected to a material receiving element 3 15.

[0033] The secondary screening element 7 forms a screening structure through the second vibrating element 8, and the secondary screening element 7 forms a screening conveying structure through the second conveyor belt 9 and the second support frame 10, and the second support frame 10 and the second material receiving element 11 form a weighing structure; The secondary screening element 7 and the conveyor belt three 12 form a screening and conveying structure, and the conveyor belt three 12 and the support frame three 13 form a rotating structure, and the quarantine element 14 and the material receiving element three 15 form a nested structure.

[0034] The unloading part 16 and the primary screening part 2 form a nested structure, and the primary screening part 2 forms a nested structure with the unloading part 16 through the positioning bolts 17, and the support frame 15 and the protective plate 18 form a leakage-proof structure, while the support frame 15 forms a rotating structure through the conveyor belt 14 and the shaft and the synchronous wheel 19.

[0035] When in use, the material can enter the primary screening element 2 through the hopper 1, and the small and medium materials of the material can be screened onto the conveyor belt 4 through the movement of the vibrating element 3, and the unloading element 16 assembled by the primary screening element 2 and the positioning bolts 17 can effectively control the stability of the material falling, thereby controlling the motor assembled by the support frame 5 to control the rotation of the conveyor belt 4, and the material on the conveyor belt 4 can be detected and reported in real time with the industrial camera 27, and transported to the receiving element 6, and the large and medium materials continuously transported on the primary screening element 2 can be transported to the secondary screening element 7 assembled by the vibrating element 28, and the large materials can be transported to the conveyor belt 2 9 assembled by the support frame 2 10 through the screening of the secondary screening element 7, and the detection and reporting data can be carried by the receiving element 2 11, and the medium materials screened by the secondary screening element 7 can be transported to the conveyor belt 3 12 assembled by the support frame 3 13, and can be distinguished and carried by the quarantine element 14 and the receiving element 3 15.

[0036] Embodiment 2: Figure 1 , Figure 2 and Figure 4-Figure 7 The technical solution shown, based on the first embodiment, also discloses that vibration during transportation will reduce material accumulation and multi-faceted detection, and its specific contents are as follows: The material discharge part 16 is nested and connected to the middle section of the lower surface of the primary screening part 2, and the lower surface of the primary screening part 2 is threadedly connected with a positioning bolt 17, and a protective plate 18 is installed on the upper surface of the support frame 15, and the outer surface of the support frame 15 is rotatably connected to a synchronous wheel 19 at the rear side, and the synchronous wheel 19 is provided with a linkage rotation mechanism; In the linkage rotating mechanism, the inner surface of the synchronous wheel 19 is rotatably connected with the synchronous belt 20, and the inner surface of the synchronous belt 20 is rotatably connected with the synchronous wheel 21, and the middle section of the inner surface of the synchronous wheel 21 is connected with the cam 2101 through a shaft, and the inner surface of the cam 2101 is nested with the roller 2102, and the outer front side of the cam 2101 is connected with the gear assembly 2103 through a shaft, and the upper surface of the cam 2101 is connected with the vibration plate 2104, and the vibration plate 2104 is nested and slid on the inner surface of the support frame 15, and a return spring 12105 is elastically installed between the support frame 15 and the vibration plate 2104, and the upper surface of the vibration plate 2104 is connected with the conveyor belt 14; A support wheel 22 is rotatably connected to the middle and lower side of the inner surface of the support frame 5, and a conveyor belt 4 is connected to the upper surface of the support wheel 22, and an extrusion wheel 23 is fittedly connected to the lower side of the inner surface of the conveyor belt 4, and a bracket 24 is rotatably connected to the outer surface of the extrusion wheel 23, and the bracket 24 is limitedly slid on the inner surface of the support frame 5, and a return spring 25 is elastically connected between the support frame 5 and the bracket 24.

[0037] The synchronous wheel 19 forms a proportional rotation structure with the synchronous wheel 21 through the synchronous belt 20, and the synchronous wheel 21 and the cam 2101 form a rotating structure, and the cam 2101 and the roller 2102 form a nested rotating structure, and the cam 2101 and the gear assembly 2103 form a rotating meshing structure, and the cam 2101 forms a vibration structure with the vibration plate 2104 through the roller 2102, and the vibration plate 2104 forms an elastic telescopic structure with the support frame 1 5 through the reset spring 1 2105.

[0038] The support frame 1 5 and the conveyor belt 1 4 form a rotating support structure through the support wheel 22, and the conveyor belt 1 4 and the extrusion wheel 23 form an extrusion rotating structure, and the extrusion wheel 23 and the support frame 1 5 form an elastic telescopic structure through the bracket 24 and the return spring 2 25.

[0039] When small materials are transported to the conveyor belt 4, the synchronous wheel 19 linked by the conveyor belt 4 control shaft will form synchronous rotation, and cooperate with the synchronous belt 20 assembled with the synchronous wheel 19 to control the synchronous wheel 21 assembled in the same proportion to form simultaneous rotation, and control the cam 2101 to drive the roller 2102 to contact the vibration plate 2104, and the cam 2101 is symmetrically arranged on the lower side of the vibration plate 2104, and cooperate with the installation of the gear assembly 2103 to form simultaneous rotation, so as to control the vibration between the vibration plate 2104 and the conveyor belt 4, and when vibrating, The vibration plate 2104 is controlled to cooperate with the support frame 5 and the reset spring 1 2105, and the vibration plate 2104 is controlled to be reset for use, thereby improving the stability of the vibration plate 2104. The support wheel 22 and the extrusion wheel 23 connected to the conveyor belt 4 are staggered to support and extrude. The reset spring 25 connected to the control bracket 24 controls the stability of the conveyor belt 14 assembled by the extrusion wheel 23 to avoid loosening of the conveyor belt 14 and form tension for the conveyor belt 14. The conveyor belt 2 9 and the conveyor belt 3 12 are also used in conjunction to improve the detection effect.

[0040] Embodiment 3: Figure 1 , Figure 8 , Fig. 9 and Fig.10 The technical solution shown, based on the second embodiment, also discloses the stability of the industrial camera 27 on the visual inspection frame 26, and its specific contents are as follows: The visual inspection frame 26 is installed on the upper surface of the support frame 5, and an industrial camera 27 is nested and connected on the upper side of the inner surface of the visual inspection frame 26.

[0041] The inner surface of the visual inspection frame 26 is telescopically connected to a moving rod 28, and the lower surface of the visual inspection frame 26 is respectively connected to the support frame 2 10 and the support frame 3 13, and the front end of the inner surface of the support frame 3 13 is rotatably connected to a cylinder 29, and the inner surface of the cylinder 29 is telescopically connected to a push rod 30, and the outer surface end of the push rod 30 is rotatably connected to a rotary adjustment door 31, and the rotary adjustment door 31 is positioned and rotatably connected to the front end of the inner surface of the support frame 3 13; An extrusion piece 2801 is installed on the end of the outer surface of the moving rod 28, and an extrusion spring 1 2802 is elastically connected between the moving rod 28 and the visual inspection frame 26, and a clamp 2803 is extruded and connected to the outer surface of the extrusion piece 2801, and an extrusion spring 2804 is elastically connected between the clamp 2803 and the visual inspection frame 26, and the outer surface of the clamp 2803 is clamped and connected to the industrial camera 27.

[0042] The visual inspection frame 26 can form an integrated structure with the support frame 1 5, the support frame 2 10 and the support frame 3 13, and the visual inspection frame 26 and the industrial camera 27 form a nested structure, and the visual inspection frame 26 and the moving rod 28 form a telescopic structure, while the support frame 3 13 forms a telescopic adjustment positioning rotation structure with the rotary adjustment door 31 through the cylinder 29 and the push rod 30; The extrusion piece 2801 and the moving rod 28 form an integrated structure, and the moving rod 28 forms an elastic telescopic structure with the visual inspection frame 26 through the extrusion piece 2801 and the extrusion spring 1 2802, and the visual inspection frame 26 forms an extrusion unlocking structure with the extrusion piece 2801 and the clamping piece 2803, and the clamping piece 2803 forms an elastic locking structure with the industrial camera 27 through the extrusion spring 2804.

[0043] When in use, the industrial camera 27 assembled by the visual inspection frame 26 is used to inspect and convey small materials, large materials and medium materials on the conveyor belt 1 4, the conveyor belt 2 9 and the conveyor belt 3 12 respectively. When it is necessary to replace different industrial cameras 27, the control moving rod 28 is squeezed into the visual inspection frame 26, and the extrusion piece 2801 installed on the moving rod 28 is driven to squeeze and contract the extrusion spring 1 2802, and the extrusion piece 2801 squeezes the clamp 2803, and the extrusion spring 2 2804 connected to the clamp 2803 is controlled to form a contraction. The card 2803 is detached from the industrial camera 27 and replaced. When the industrial camera 27 is installed, it is directly squeezed downward to cooperate with the card 2803 to form a limit engagement. When the industrial camera 27 detects harmful substances or suspicious substances, the control cylinder 29 drives the push rod 30 to extend and retract, and the rotary adjustment door 31 connected to the push rod 30 is adjusted to rotate, so that the suspicious materials and normal materials are distinguished and transported to the quarantine piece 14 and the receiving piece 15, thereby improving the convenience of use.

[0044] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain, comprising a hopper (1) that is easy to position and assemble, a primary screening element (2) connected to the lower surface of the hopper (1), and a vibrating element (3) installed at the rear side of the lower surface of the primary screening element (2); It is characterized in that include: A conveyor belt (4) is located at the middle and rear side of the lower surface of the primary screening element (2), and the outer surface of the conveyor belt (4) is rotatably connected to a support frame (5), and a material receiving element (6) is supported at the left end of the upper surface of the support frame (5), and a secondary screening element (7) is provided at the front end of the lower surface of the primary screening element (2), and the secondary screening element (7) is provided with a screening detection mechanism; A material discharge member (16) is nested and connected to the middle section of the lower surface of the primary screening member (2), and the lower surface of the primary screening member (2) is threadedly connected with a positioning bolt (17), and a protective plate (18) is installed on the upper surface of the support frame (5), and a synchronous wheel (19) is rotatably connected to the rear side of the outer surface of the support frame (5), and the synchronous wheel (19) is provided with a linkage rotation mechanism; The inner surface of the synchronous wheel 1 (19) in the linkage rotating mechanism is rotatably connected to the synchronous belt (20), and the inner surface of the synchronous belt (20) is rotatably connected to the synchronous wheel 2 (21), and the middle section of the inner surface of the synchronous wheel 2 (21) is connected to the cam (2101) via a shaft, and the inner surface of the cam (2101) is nested and connected to the roller (2102), and the outer front side of the cam (2101) is connected to the gear assembly (2103) via a shaft, and the upper surface of the cam (2101) is connected to the vibration plate (2104), and the vibration plate (2104) is nested and slidably mounted on the inner surface of the support frame 1 (5), and a return spring 1 (2105) is elastically installed between the support frame 1 (5) and the vibration plate (2104), and the upper surface of the vibration plate (2104) is connected to the conveyor belt 1 (4); A support wheel (22) is rotatably connected to the lower middle side of the inner surface of the support frame one (5), and a conveyor belt one (4) is connected to the upper surface of the support wheel (22), and an extrusion wheel (23) is fittedly connected to the lower side of the inner surface of the conveyor belt one (4), and a bracket (24) is rotatably connected to the outer surface of the extrusion wheel (23), and the bracket (24) is limitedly slid on the inner surface of the support frame one (5), and a return spring two (25) is elastically connected between the support frame one (5) and the bracket (24); The visual inspection frame (26) is installed on the upper surface of the supporting frame 1 (5), and an industrial camera (27) is nested and connected on the upper side of the inner surface of the visual inspection frame (26).

2. The machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain according to claim 1, characterized in that: The conveyor belt 1 (4) and the primary screening element (2) form a screening and conveying structure, and the conveyor belt 1 (4) and the support frame 1 (5) form a rotating structure, and the support frame 1 (5) forms a weighing bearing structure through the conveyor belt 1 (4) and the material receiving element 1 (6), and at the same time, a secondary screening is formed between the primary screening element (2) and the secondary screening element (7).

3. The machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain according to claim 1, characterized in that: A second vibrating member (8) is installed on the right side of the lower surface of the secondary screening member (7) in the screening detection mechanism, and a second conveyor belt (9) is arranged at the left end of the lower surface of the secondary screening member (7), and the outer surface of the second conveyor belt (9) is rotatably connected to a second support frame (10), and a second material receiving member (11) is connected to the front side of the outer surface of the second support frame (10); A conveyor belt three (12) is provided in the middle section of the lower surface of the secondary screening element (7), and the outer surface of the conveyor belt three (12) is rotatably connected to a support frame three (13), and the front end of the outer surface of the support frame three (13) is connected to a quarantine element (14), and the rear side of the inner surface of the quarantine element (14) is connected to a material receiving element three (15).

4. The machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain according to claim 3, characterized in that: The secondary screening element (7) forms a screening structure through the second vibrating element (8), and the secondary screening element (7) forms a screening conveying structure through the second conveyor belt (9) and the second support frame (10), and the second support frame (10) and the second material receiving element (11) form a weighing structure; The secondary screening element (7) and the conveyor belt three (12) form a screening and conveying structure, the conveyor belt three (12) and the support frame three (13) form a rotating structure, and the quarantine element (14) and the material receiving element three (15) form a nested structure.

5. The machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain according to claim 1, characterized in that: The material discharge member (16) and the primary screening member (2) form a nested structure, and the primary screening member (2) forms a nested structure with the material discharge member (16) via positioning bolts (17), and the support frame 1 (5) and the protective plate (18) form a material leakage prevention structure, while the support frame 1 (5) forms a rotating structure via the conveyor belt 1 (4) and the shaft and the synchronous wheel 1 (19).

6. The machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain according to claim 1, characterized in that: The synchronous wheel 1 (19) forms an equal-proportional rotation structure with the synchronous wheel 2 (21) through the synchronous belt (20), and the synchronous wheel 2 (21) and the cam (2101) form a rotation structure, and the cam (2101) and the roller (2102) form a nested rotation structure, and the cam (2101) and the gear assembly (2103) form a rotation meshing structure, and the cam (2101) and the vibration plate (2104) form a vibration structure through the roller (2102), and the vibration plate (2104) and the support frame 1 (5) form an elastic telescopic structure through the return spring 1 (2105).

7. The machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain according to claim 1, characterized in that: The support frame 1 (5) forms a rotating support structure with the conveyor belt 1 (4) through the support wheel (22), and the conveyor belt 1 (4) and the extrusion wheel (23) form an extrusion rotating structure, and the extrusion wheel (23) forms an elastic telescopic structure with the support frame 1 (5) through the bracket (24) and the return spring 2 (25).

8. The machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain according to claim 1, characterized in that: The inner surface of the visual inspection frame (26) is telescopically connected to a moving rod (28), and the lower surface of the visual inspection frame (26) is respectively connected to the support frame 2 (10) and the support frame 3 (13), and the front end of the inner surface of the support frame 3 (13) is rotatably connected to a cylinder (29), and the inner surface of the cylinder (29) is telescopically connected to a push rod (30), and the outer surface end of the push rod (30) is rotatably connected to a rotary adjustment door (31), and the rotary adjustment door (31) is positioned and rotatably connected to the front end of the inner surface of the support frame 3 (13); An extrusion piece (2801) is installed at the end of the outer surface of the moving rod (28), and an extrusion spring 1 (2802) is elastically connected between the moving rod (28) and the visual inspection frame (26), and a clamping piece (2803) is extruded and connected to the outer surface of the extrusion piece (2801), and an extrusion spring 2 (2804) is elastically connected between the clamping piece (2803) and the visual inspection frame (26), and an industrial camera (27) is snap-connected to the outer surface of the clamping piece (2803).

9. The machine vision device for multi-layer sorting and quarantine of pests in inbound bulk grain according to claim 8, characterized in that: The visual inspection frame (26) can form an integrated structure with the support frame one (5), the support frame two (10) and the support frame three (13), and the visual inspection frame (26) and the industrial camera (27) form a nested structure, and the visual inspection frame (26) and the moving rod (28) form a telescopic structure, while the support frame three (13) forms a telescopically adjustable positioning and rotating structure with the rotary adjustment door (31) through the cylinder (29) and the push rod (30); The extrusion member (2801) and the moving rod (28) form an integrated structure, and the moving rod (28) forms an elastic telescopic structure with the visual inspection frame (26) through the extrusion member (2801) and the first extrusion spring (2802), and the visual inspection frame (26) forms an extrusion unlocking structure with the clamping member (2803) through the extrusion member (2801), and the clamping member (2803) forms an elastic locking structure with the industrial camera (27) through the second extrusion spring (2804).

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