Intelligent visual sorting machine for part particles

Abstract

The utility model discloses an intelligent visual sorting machine for part particles. The utility model aims to solve the problems in the prior art that the blowing time node cannot be adjusted and corrected when deviation occurs, and a visual identification device needs to be in a high-definition shooting working state all the time. According to the technical scheme, the visual sorting machine comprises a rack, and a blanking device, a material one-by-one conveying device, a visual sorting device, a material receiving device and a processing control circuit device which are correspondingly matched on the rack, and is characterized in that a blowing head frame of the visual sorting device is provided with a long sliding chute which extends in the direction parallel to the conveying direction of the material one-by-one conveying device; a high-pressure blowing head is arranged on the long sliding groove in a sliding fit mode and fixed through a locking nut on the high-pressure blowing head, a photoelectric sensor for sensing materials on a conveying belt is installed on the portion, on the side edge of the conveying belt of the material one-by-one conveying device, of the rack, and the sensing signal output end of the photoelectric sensor is connected with the sensing signal input end of the processing control circuit device. And the switching signal output end of the processing control circuit device is connected with the switching signal input end of the camera.

Description

Technical Field

[0001] This utility model relates to a sorting device for removing defective material particles (such as those with defects or those that do not meet size requirements) from material particles, and in particular, an intelligent visual sorting machine for parts particles. Background Technology

[0002] The traditional method for removing defective material particles from the material granules is manual sorting. However, this method is inefficient, labor-intensive, and has a high rate of missed sorting. Therefore, a material particle visual sorting device has emerged that uses industrial digital cameras and processing circuits to identify each passing material particle and then removes the defective particles.

[0003] Chinese Patent No. CN209886224U discloses a visual recognition air-blowing intelligent longan sorting machine, which is a material particle visual sorting device. The structure includes a sorting device, a material bin mounted on top of it, and a visual recognition device. The sorting device is characterized by: a ring conveyor chain, a carrying block, and an air-blowing device; the upper part of the carrying block has a transverse S-shaped groove and a longitudinal circular groove; the longitudinal circular groove is used to accommodate longan fruits, and the transverse S-shaped groove is used to guide the movement of the longan fruits; the bottom and sidewalls of the transverse S-shaped groove are both wavy; the bottom of the groove is symmetrical to the longitudinal circular groove, and the bottom of the groove is located near the longitudinal circular groove and in the transverse S-shaped groove. The outlets are all convex structures. The radius of the convexity near the longitudinal circular channel at the bottom of the trough is larger than the radius of the convexity at the outlet of the transverse S-shaped channel. The sidewall of the transverse S-shaped channel is 180° rotationally symmetrical with respect to the longitudinal circular channel. The wall surface of the sidewall is concave between the two convex structures on one side of the trough bottom. Multiple flexible protrusions are evenly distributed on the wall surface of the concave structure. The bottom of the carrying block is detachably connected to a ring conveyor chain. Air jet devices are staggered on both sides of the ring conveyor chain. The drawbacks of this solution are: first, the air jet devices are fixed. When there is a deviation between the time of blowing air and the time when the defective longan arrives at the air outlet, it cannot be adjusted and corrected, which will affect the sorting effect; second, during the entire process of conveying the longan one by one, the visual recognition device needs to be in high-definition shooting mode at all times. This results in a large amount of information that the visual recognition device needs to process. Not only does the storage and processing capacity of the visual recognition device need to be very high, but it is also prone to processing failures, affecting the sorting effect. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, such as the inability to adjust and correct discrepancies between the timing of air blowing and the timing of defective materials arriving at the air blowing port, and the requirement for the visual recognition device to be constantly in high-definition shooting mode, resulting in a large amount of information to be processed and easy to cause processing failures, the purpose of this utility model is to provide an improved intelligent visual sorting machine for parts and particles, which can overcome the deficiencies of existing technologies.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an intelligent visual sorting machine for parts and particles, including a frame and a feeding device, a material conveying device, a visual sorting device, a receiving device, and a processing control circuit device disposed on the frame. The receiving end of the material conveying device is connected to the outlet of the feeding device, and the outlet of the material conveying device is connected to the inlet of the receiving device. The visual sorting device is located in the middle of the conveying path of the material conveying device. The visual sorting device consists of a camera frame fixed on the frame, a camera mounted on the camera frame with its lens facing the top surface of the conveyor belt of the material conveying device, an air blowing head frame fixed on the frame on one side of the conveyor belt of the material conveying device, a high-pressure air blowing head mounted on the air blowing head frame with its air blowing port facing the top surface of the conveyor belt of the material conveying device in a horizontal direction, a high-pressure air control valve fixed on the frame, and a processing control circuit device fixed on the frame. The defective material receiving device is located on the other side of the conveyor belt of the conveying device and directly opposite the high-pressure air blowing head. The image signal output terminal of the camera is connected to the image signal input terminal of the processing control circuit device. The outlet of the high-pressure air control valve is connected to the high-pressure air blowing head, the inlet of the high-pressure air control valve is connected to the high-pressure air source, and the control signal input terminal of the high-pressure air control valve is connected to the control signal output terminal of the processing control circuit device. The device is characterized by having a long slide groove extending parallel to the conveying direction of each material conveying device on the air blowing head frame. The high-pressure air blowing head slides on the long slide groove and is fixed by a locking nut on the high-pressure air blowing head. A photoelectric sensor for sensing the material on the conveyor belt is installed on the side of the conveyor belt of each material conveying device on the frame. The sensing signal output terminal of the photoelectric sensor is connected to the sensing signal input terminal of the processing control circuit device, and the switch signal output terminal of the processing control circuit device is connected to the switch signal input terminal of the camera.

[0006] The material conveying device described in the above technical solution can be composed of a vibrating material output device, a conveyor belt mechanism, and a baffle mechanism. The inlet end of the vibrating material output device is connected to the outlet of the discharge device, the inlet end of the conveyor belt mechanism is connected to the outlet end of the vibrating material output device, the outlet end of the conveyor belt mechanism is connected to the inlet of the receiving device, and the baffle mechanism is fitted above the front section of the conveyor belt of the conveyor belt mechanism.

[0007] The frame described in the above technical solution may also be equipped with a material lifting device, the discharge end of which is connected to the inlet of the material dropping device, and the inlet end of which is equipped with a storage hopper.

[0008] The above-described technical solution allows for the installation of a lighting fixture below the camera on the camera mount. The lighting fixture may include a panel-shaped lighting fixture and a ring-shaped lighting fixture, whichever can be selected for use.

[0009] The plate-shaped light lamp described in the above technical solution can be fixedly installed on the camera frame below the camera. The light-emitting surface of the plate-shaped light lamp is the entire plane of its bottom side. The plate-shaped light lamp has a lens viewing hole facing the camera lens. The ring light lamp can be pulled out and inserted into the camera frame below the plate-shaped light lamp. The light emission of the plate-shaped light lamp or the ring light lamp can be controlled by a switch.

[0010] The material receiving device described in the above technical solution can be composed of an intact material receiving hopper and an intact material container located below the intact material receiving hopper, and the discharge end of the material conveying device is connected to the inlet of the intact material receiving hopper.

[0011] The defective material receiving device described in the above technical solution can be composed of a defective material receiving hopper and a defective material container located below the defective material receiving hopper, with the high-pressure air blowing head facing the inlet of the defective material receiving hopper.

[0012] The beneficial effects of this utility model are as follows: Because the blowing head frame is provided with a long sliding groove extending parallel to the conveying direction of the material conveying device, and the high-pressure blowing head is slidably fitted on the long sliding groove and fixed by a locking nut on the high-pressure blowing head, the deviation between the blowing time and the arrival time of defective materials at the blowing port can be easily corrected by adjusting the position of the high-pressure blowing head on the conveying path of the material conveying device, thereby effectively improving the sorting effect; because a photoelectric sensor for sensing the material on the conveyor belt is installed on the side of the conveyor belt of the material conveying device on the frame, and the sensing signal output terminal of the photoelectric sensor is connected to the sensing signal of the processing control circuit device. At the input end, the switch signal output terminal of the processing control circuit device is connected to the switch signal input terminal of the camera. Therefore, the processing control circuit device only controls the camera to start working when the photoelectric sensor detects that material has arrived at the set position. During the time period when the photoelectric sensor does not detect material, the processing control circuit device controls the camera to stop working. In this way, the camera does not need to be in high-definition shooting mode all the time, and the processing control circuit device does not need to process a large amount of information. This not only reduces the storage and processing capacity requirements of the processing control circuit device, but also reduces the processing failures that cause information congestion in the processing control circuit device, effectively improving the sorting effect.

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of one embodiment of the present invention.

[0015] Figure 2 yes Figure 1 A magnified three-dimensional schematic diagram of the high-pressure air blowing head and photoelectric sensor in direction A.

[0016] Figure 3 yes Figure 1 A block diagram illustrating the working path of the processing control circuit device, camera, high-pressure air control valve, high-pressure air blowing head, and photoelectric sensor.

[0017] Figure 4 yes Figure 1 Another perspective 3D diagram showing a material lifting device mounted on the frame.

[0018] Figure 5 yes Figure 1 A three-dimensional diagram showing a retractable ring light inserted below a panel-shaped lighting fixture.

[0019] In the diagram: 1. Frame; 2. Unloading device; 3. Material conveying device; 4. Vision sorting device; 5. Receiving device; 6. Processing control circuit device; 7. Camera frame; 8. Conveyor belt; 9. Camera; 10. Air blowing head frame; 11. Air blowing port; 12. High-pressure air blowing head; 13. High-pressure air control valve; 14. Defective material receiving device; 15. Long chute; 16. Locking nut; 17. Photoelectric sensor; 18. Vibrating material output device; 19. Conveyor belt mechanism; 20. Baffle mechanism; 21. Material lifting device; 22. Storage hopper; 23. Plate-shaped lighting lamp; 24. Ring lighting lamp; 25. Lens viewing hole; 26. Good material receiving hopper; 27. Defective material receiving hopper. Detailed Implementation

[0020] Reference Figures 1-5This intelligent visual sorting machine for parts and granules includes a frame 1 and a feeding device 2, a material conveying device 3, a visual sorting device 4, a receiving device 5, and a processing control circuit device 6, all mounted on the frame 1. The receiving end of the material conveying device 3 is connected to the outlet of the feeding device 2, and the outlet of the material conveying device 3 is connected to the inlet of the receiving device 5. The visual sorting device 4 is located in the middle of the conveying path of the material conveying device 3 and consists of a camera frame fixed to the frame 1. 7. A camera 9 mounted on the camera mount 7 with its lens facing the top surface of the conveyor belt 8 of the material conveying device 3; an air blowing head frame 10 fixed on the frame 1 on one side of the conveyor belt 8 of the material conveying device 3; a high-pressure air blowing head 12 mounted on the air blowing head frame 10 with its air blowing port 11 facing the top surface of the conveyor belt 8 of the material conveying device 3 in a horizontal direction; a high-pressure air control valve 13 fixed on the frame 1; and a camera 9 fixed on the frame 1 on the other side of the conveyor belt 8 of the material conveying device 3, facing the top surface of the material conveying device 3. The defective material receiving device 14 is constructed with the high-pressure air blowing head 12. The image signal output terminal a of the camera 12 is connected to the image signal input terminal b of the processing control circuit device 6. The air outlet c of the high-pressure air control valve 13 is connected to the high-pressure air blowing head, the air inlet d of the high-pressure air control valve 13 is connected to the high-pressure air source, and the control signal input terminal e of the high-pressure air control valve 13 is connected to the control signal output terminal f of the processing control circuit device 6. The characteristic feature is that the air blowing head frame 10 is equipped with a conveying device along the conveying direction of the material conveying device 3. A long chute 15 extending in a parallel direction is provided. The high-pressure air blowing head 12 is slidably fitted on the long chute 15 and fixed by a locking nut 16 on the high-pressure air blowing head 12. A photoelectric sensor 17 for sensing the material on the conveyor belt 8 is installed on the side of the conveyor belt 8 of the material conveying device 3 on the frame 1. The sensing signal output terminal g of the photoelectric sensor 17 is connected to the sensing signal input terminal h of the processing control circuit device 6. The switch signal output terminal j of the processing control circuit device 6 is connected to the switch signal input terminal k of the camera 9.

[0021] In addition, the material conveying device 3 consists of a vibrating material output device 18, a conveyor belt mechanism 19, and a baffle mechanism 20. The inlet end of the vibrating material output device 18 is connected to the outlet of the material dropping device 2. The inlet end of the conveyor belt mechanism 19 is connected to the outlet end of the vibrating material output device 18. The outlet end of the conveyor belt mechanism 19 is connected to the inlet of the receiving device 5. The baffle mechanism 20 is fitted above the front section of the conveyor belt 8 of the conveyor belt mechanism 19.

[0022] The frame 1 is also equipped with a material lifting device 21. The discharge end of the material lifting device 21 is connected to the inlet of the dropping device 2. The inlet end of the material lifting device 21 is equipped with a storage hopper 22.

[0023] Reference Figure 5 The camera mount 7 is equipped with a lighting lamp below the camera 9. The lighting lamp includes a plate-shaped lighting lamp 23 and a ring-shaped lighting lamp 24 for selective use.

[0024] The plate-shaped illuminator 23 is fixedly installed on the camera frame 7 below the camera 9. The light-emitting surface of the plate-shaped illuminator 23 is the entire plane of its bottom side. The plate-shaped illuminator 23 has a lens viewing hole 25 facing the lens of the camera 9. The ring-shaped illuminator 24 can be pulled out and inserted into the camera frame 7 below the plate-shaped illuminator 23. The light emission of the plate-shaped illuminator 23 or the ring-shaped illuminator 24 is controlled by a switch (not shown).

[0025] The receiving device 5 consists of a intact material receiving hopper 26 and an intact material container (not shown) located below the intact material receiving hopper 26. The discharge end of the material conveying device 3 is connected to the inlet of the intact material receiving hopper 26.

[0026] The defective material receiving device 14 consists of a defective material receiving hopper 27 and a defective material container (not shown) located below the defective material receiving hopper 27. The air outlet 11 of the high-pressure air blowing head 12 is directly facing the feed inlet of the defective material receiving hopper 27.

[0027] In use, the parts to be sorted are collected and poured into the storage hopper 22, then lifted by the material lifting device 21 and fall into the inlet of the discharge device 2. From there, they fall from the outlet of the discharge device 2 into the receiving end of the material conveying device 3. The parts are then individually output by the vibrating material outputter 18 of the material conveying device 3 and fall onto the top surface of the conveyor belt 8 of the conveyor belt mechanism 19. After being limited by the baffle mechanism 20, the parts are conveyed forward one by one at even intervals on the top surface of the conveyor belt 8. As the conveyed parts pass through the... When the photoelectric sensor 17 detects an approaching part particle, it sends a sensing signal to the processing and control circuit device 6. The processing and control circuit device 6 then controls the camera 9 to start operating. During periods when the photoelectric sensor 17 does not detect an approaching part particle, the processing and control circuit device 6 controls the camera 9 to stop operating. When the camera 9 is operating, it sends an image signal to the processing and control circuit device 6. When the processing and control circuit device 6 detects a defective part particle through image comparison... The processing control circuit device 6 controls the high-pressure gas control valve 13 to open, and high-pressure gas is ejected from the air outlet 11 of the high-pressure air blower head 12, blowing the part particle laterally from the top surface of the conveyor belt 8 into the feed inlet of the defective material receiving hopper 27, and then falling into the defective material container below the defective material receiving hopper 27; when the high-pressure air blower head 12 ejects high-pressure gas from the air outlet 11, the defective part particle has not yet reached or has already passed the air outlet 11, the locking nut 16 on the high-pressure air blower head 12 can be loosened, and the high-pressure gas flow can be adjusted by sliding. The high-pressure blowing head 12 is positioned on the conveying path of the material conveying device to correct the deviation between the blowing time and the time when the defective material arrives at the blowing port, and then the high-pressure blowing head 12 is locked and fixed. When the processing control circuit device 6 finds that the part particle is not defective through image comparison, the processing control circuit device 6 controls the high-pressure air control valve 13 to close, and the part particle continues to be conveyed on the top surface of the conveyor belt 8, falls into the feed port of the intact material receiving hopper 26, and then falls into the intact material container below the intact material receiving hopper 26.

[0028] When the camera 9 is working, the plate-shaped lighting lamp 23 or the ring-shaped lighting lamp 24 can be controlled to emit light according to the specific shape of the part particles by a switch; when the plate-shaped lighting lamp 23 is needed to emit light, the ring-shaped lighting lamp 24 is pulled out from the camera frame 7 to avoid affecting the lighting effect of the plate-shaped lighting lamp 23; when the ring-shaped lighting lamp 24 is needed to emit light, the ring-shaped lighting lamp 24 can be kept in the inserted state on the camera frame 7.

Claims

1. A parts particle intelligent visual sorting machine, comprising a frame and a material falling device, a material individual conveying device, a visual sorting device, a material receiving device and a processing control circuit device arranged on the frame, wherein the material receiving end of the material individual conveying device is connected with the material outlet of the material falling device, the material outlet of the material individual conveying device is connected with the material inlet of the material receiving device, the visual sorting device is arranged in the middle of the conveying path of the material individual conveying device, the visual sorting device is composed of a camera frame fixed on the frame, a camera installed on the camera frame and having a lens facing the top surface of the conveying belt of the material individual conveying device, a blowing head frame fixed on the frame at one side of the conveying belt of the material individual conveying device, a high-pressure blowing head installed on the blowing head frame and having a blowing port facing the top surface of the conveying belt of the material individual conveying device in a transverse horizontal direction, a high-pressure gas control valve fixed on the frame and a defect material receiving device fixed on the frame at the other side of the conveying belt of the material individual conveying device and facing the high-pressure blowing head, the image signal output end of the camera is connected with the image signal input end of the processing control circuit device, the gas outlet of the high-pressure gas control valve is connected with the high-pressure blowing head, the gas inlet of the high-pressure gas control valve is connected with a high-pressure gas source, and the control signal input end of the high-pressure gas control valve is connected with the control signal output end of the processing control circuit device. The blowing head frame is provided with a long chute extending along the parallel direction of the conveying direction of the material conveying device, the high-pressure blowing head is slidingly fitted on the long chute and is fixed by the locking nut on the high-pressure blowing head, the frame is provided with a photoelectric sensor sensing the material on the conveying belt on the side of the conveying belt of the material conveying device, the sensing signal output end of the photoelectric sensor is connected to the sensing signal input end of the processing control circuit device, and the switch signal output end of the processing control circuit device is connected to the switch signal input end of the camera.

2. The part pellet intelligent vision sorter of claim 1, wherein: The material conveying device is composed of a vibrating material conveying device, a conveying belt mechanism and a baffle mechanism, the feeding end of the vibrating material conveying device is connected to the discharge port of the material falling device, the feeding end of the conveying belt mechanism is connected to the discharge end of the vibrating material conveying device, the discharge end of the conveying belt mechanism is connected to the feeding port of the material receiving device, and the baffle mechanism is fitted above the front section of the conveying belt of the conveying belt mechanism.

3. The part pellet intelligent vision sorter of claim 1 or 2, characterized by: The frame is provided with a material lifting device, the discharge end of the material lifting device is connected to the feeding port of the material falling device, and the feeding end of the material lifting device is provided with a storage hopper.

4. The smart visual parts sorter of claim 1 or 2, wherein: The camera frame is provided with an illuminating lamp below the camera, and the illuminating lamp includes a plate-shaped illuminating lamp and a ring-shaped illuminating lamp for alternative use.

5. The part pellet intelligent vision sorter of claim 4, wherein: The plate-shaped illuminating lamp is fixedly installed on the camera frame below the camera, the emitting surface of the plate-shaped illuminating lamp is the entire plane of the bottom side, a lens viewing hole is formed in the plate-shaped illuminating lamp opposite to the camera lens, the ring-shaped illuminating lamp is inserted into the camera frame below the plate-shaped illuminating lamp and can be extracted, and the plate-shaped illuminating lamp or the ring-shaped illuminating lamp is controlled to emit light by a change-over switch.

6. The smart visual parts sorter of claim 1 or 2, wherein: The material receiving device is composed of a perfect material receiving hopper and a perfect material container arranged below the perfect material receiving hopper, and the discharge end of the material conveying device is connected to the feeding port of the perfect material receiving hopper.

7. The smart visual parts sorter of claim 1 or 2, wherein: The defective material receiving device is composed of a defective material receiving hopper and a defective material container arranged below the defective material receiving hopper, and the high-pressure blowing head is opposite to the feeding port of the defective material receiving hopper.

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